diff options
Diffstat (limited to 'drivers/clk')
188 files changed, 23145 insertions, 1359 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 9897f353bf1a..42f7120ca9ce 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -78,6 +78,23 @@ config COMMON_CLK_SI570 This driver supports Silicon Labs 570/571/598/599 programmable clock generators. +config COMMON_CLK_CDCE925 + tristate "Clock driver for TI CDCE925 devices" + depends on I2C + depends on OF + select REGMAP_I2C + help + ---help--- + This driver supports the TI CDCE925 programmable clock synthesizer. + The chip contains two PLLs with spread-spectrum clocking support and + five output dividers. The driver only supports the following setup, + and uses a fixed setting for the output muxes. + Y1 is derived from the input clock + Y2 and Y3 derive from PLL1 + Y4 and Y5 derive from PLL2 + Given a target output frequency, the driver will set the PLL and + divider to best approximate the desired output. + config COMMON_CLK_S2MPS11 tristate "Clock driver for S2MPS1X/S5M8767 MFD" depends on MFD_SEC_CORE @@ -150,11 +167,13 @@ config COMMON_CLK_CDCE706 ---help--- This driver supports TI CDCE706 programmable 3-PLL clock synthesizer. +source "drivers/clk/bcm/Kconfig" +source "drivers/clk/hisilicon/Kconfig" source "drivers/clk/qcom/Kconfig" endmenu -source "drivers/clk/bcm/Kconfig" source "drivers/clk/mvebu/Kconfig" source "drivers/clk/samsung/Kconfig" +source "drivers/clk/tegra/Kconfig" diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 3d00c25382c5..c4cf075a2320 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -24,7 +24,7 @@ obj-$(CONFIG_COMMON_CLK_CDCE706) += clk-cdce706.o obj-$(CONFIG_ARCH_CLPS711X) += clk-clps711x.o obj-$(CONFIG_ARCH_EFM32) += clk-efm32gg.o obj-$(CONFIG_ARCH_HIGHBANK) += clk-highbank.o -obj-$(CONFIG_MACH_LOONGSON1) += clk-ls1x.o +obj-$(CONFIG_MACH_LOONGSON32) += clk-ls1x.o obj-$(CONFIG_COMMON_CLK_MAX_GEN) += clk-max-gen.o obj-$(CONFIG_COMMON_CLK_MAX77686) += clk-max77686.o obj-$(CONFIG_COMMON_CLK_MAX77802) += clk-max77802.o @@ -38,6 +38,8 @@ obj-$(CONFIG_COMMON_CLK_RK808) += clk-rk808.o obj-$(CONFIG_COMMON_CLK_S2MPS11) += clk-s2mps11.o obj-$(CONFIG_COMMON_CLK_SI5351) += clk-si5351.o obj-$(CONFIG_COMMON_CLK_SI570) += clk-si570.o +obj-$(CONFIG_COMMON_CLK_CDCE925) += clk-cdce925.o +obj-$(CONFIG_ARCH_STM32) += clk-stm32f4.o obj-$(CONFIG_CLK_TWL6040) += clk-twl6040.o obj-$(CONFIG_ARCH_U300) += clk-u300.o obj-$(CONFIG_ARCH_VT8500) += clk-vt8500.o @@ -45,17 +47,20 @@ obj-$(CONFIG_COMMON_CLK_WM831X) += clk-wm831x.o obj-$(CONFIG_COMMON_CLK_XGENE) += clk-xgene.o obj-$(CONFIG_COMMON_CLK_PWM) += clk-pwm.o obj-$(CONFIG_COMMON_CLK_AT91) += at91/ -obj-$(CONFIG_ARCH_BCM_MOBILE) += bcm/ +obj-$(CONFIG_ARCH_BCM) += bcm/ obj-$(CONFIG_ARCH_BERLIN) += berlin/ -obj-$(CONFIG_ARCH_HI3xxx) += hisilicon/ -obj-$(CONFIG_ARCH_HIP04) += hisilicon/ -obj-$(CONFIG_ARCH_HIX5HD2) += hisilicon/ +obj-$(CONFIG_ARCH_HISI) += hisilicon/ +obj-$(CONFIG_ARCH_MXC) += imx/ +obj-$(CONFIG_MACH_INGENIC) += ingenic/ obj-$(CONFIG_COMMON_CLK_KEYSTONE) += keystone/ +obj-$(CONFIG_ARCH_MEDIATEK) += mediatek/ ifeq ($(CONFIG_COMMON_CLK), y) obj-$(CONFIG_ARCH_MMP) += mmp/ endif obj-$(CONFIG_PLAT_ORION) += mvebu/ +obj-$(CONFIG_ARCH_MESON) += meson/ obj-$(CONFIG_ARCH_MXS) += mxs/ +obj-$(CONFIG_ARCH_LPC18XX) += nxp/ obj-$(CONFIG_MACH_PISTACHIO) += pistachio/ obj-$(CONFIG_COMMON_CLK_PXA) += pxa/ obj-$(CONFIG_COMMON_CLK_QCOM) += qcom/ @@ -72,4 +77,6 @@ obj-$(CONFIG_ARCH_OMAP2PLUS) += ti/ obj-$(CONFIG_ARCH_U8500) += ux500/ obj-$(CONFIG_COMMON_CLK_VERSATILE) += versatile/ obj-$(CONFIG_X86) += x86/ +obj-$(CONFIG_ARCH_ZX) += zte/ obj-$(CONFIG_ARCH_ZYNQ) += zynq/ +obj-$(CONFIG_H8300) += h8300/ diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c index 59fa3cc96c9e..c2400456a044 100644 --- a/drivers/clk/at91/clk-main.c +++ b/drivers/clk/at91/clk-main.c @@ -614,7 +614,7 @@ void __init of_at91sam9x5_clk_main_setup(struct device_node *np, const char *name = np->name; int i; - num_parents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + num_parents = of_clk_get_parent_count(np); if (num_parents <= 0 || num_parents > 2) return; diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c index c1af80bcdf20..f98eafe9b12d 100644 --- a/drivers/clk/at91/clk-master.c +++ b/drivers/clk/at91/clk-master.c @@ -224,7 +224,7 @@ of_at91_clk_master_setup(struct device_node *np, struct at91_pmc *pmc, const char *name = np->name; struct clk_master_characteristics *characteristics; - num_parents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + num_parents = of_clk_get_parent_count(np); if (num_parents <= 0 || num_parents > MASTER_SOURCE_MAX) return; diff --git a/drivers/clk/at91/clk-peripheral.c b/drivers/clk/at91/clk-peripheral.c index 597fed423d7d..df2c1afa52b4 100644 --- a/drivers/clk/at91/clk-peripheral.c +++ b/drivers/clk/at91/clk-peripheral.c @@ -29,7 +29,7 @@ #define PERIPHERAL_RSHIFT_MASK 0x3 #define PERIPHERAL_RSHIFT(val) (((val) >> 16) & PERIPHERAL_RSHIFT_MASK) -#define PERIPHERAL_MAX_SHIFT 4 +#define PERIPHERAL_MAX_SHIFT 3 struct clk_peripheral { struct clk_hw hw; @@ -242,7 +242,7 @@ static long clk_sam9x5_peripheral_round_rate(struct clk_hw *hw, return *parent_rate; if (periph->range.max) { - for (; shift < PERIPHERAL_MAX_SHIFT; shift++) { + for (; shift <= PERIPHERAL_MAX_SHIFT; shift++) { cur_rate = *parent_rate >> shift; if (cur_rate <= periph->range.max) break; @@ -254,7 +254,7 @@ static long clk_sam9x5_peripheral_round_rate(struct clk_hw *hw, best_diff = cur_rate - rate; best_rate = cur_rate; - for (; shift < PERIPHERAL_MAX_SHIFT; shift++) { + for (; shift <= PERIPHERAL_MAX_SHIFT; shift++) { cur_rate = *parent_rate >> shift; if (cur_rate < rate) cur_diff = rate - cur_rate; @@ -289,7 +289,7 @@ static int clk_sam9x5_peripheral_set_rate(struct clk_hw *hw, if (periph->range.max && rate > periph->range.max) return -EINVAL; - for (shift = 0; shift < PERIPHERAL_MAX_SHIFT; shift++) { + for (shift = 0; shift <= PERIPHERAL_MAX_SHIFT; shift++) { if (parent_rate >> shift == rate) { periph->auto_div = false; periph->div = shift; diff --git a/drivers/clk/at91/clk-pll.c b/drivers/clk/at91/clk-pll.c index 6ec79dbc0840..cbbe40377ad6 100644 --- a/drivers/clk/at91/clk-pll.c +++ b/drivers/clk/at91/clk-pll.c @@ -173,8 +173,7 @@ static long clk_pll_get_best_div_mul(struct clk_pll *pll, unsigned long rate, int i = 0; /* Check if parent_rate is a valid input rate */ - if (parent_rate < characteristics->input.min || - parent_rate > characteristics->input.max) + if (parent_rate < characteristics->input.min) return -ERANGE; /* @@ -187,6 +186,15 @@ static long clk_pll_get_best_div_mul(struct clk_pll *pll, unsigned long rate, if (!mindiv) mindiv = 1; + if (parent_rate > characteristics->input.max) { + tmpdiv = DIV_ROUND_UP(parent_rate, characteristics->input.max); + if (tmpdiv > PLL_DIV_MAX) + return -ERANGE; + + if (tmpdiv > mindiv) + mindiv = tmpdiv; + } + /* * Calculate the maximum divider which is limited by PLL register * layout (limited by the MUL or DIV field size). diff --git a/drivers/clk/at91/clk-programmable.c b/drivers/clk/at91/clk-programmable.c index 86c8a073dcc3..8c86c0f7847a 100644 --- a/drivers/clk/at91/clk-programmable.c +++ b/drivers/clk/at91/clk-programmable.c @@ -237,7 +237,7 @@ of_at91_clk_prog_setup(struct device_node *np, struct at91_pmc *pmc, const char *name; struct device_node *progclknp; - num_parents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + num_parents = of_clk_get_parent_count(np); if (num_parents <= 0 || num_parents > PROG_SOURCE_MAX) return; diff --git a/drivers/clk/at91/clk-slow.c b/drivers/clk/at91/clk-slow.c index 2f13bd5246b5..98a84a865fe1 100644 --- a/drivers/clk/at91/clk-slow.c +++ b/drivers/clk/at91/clk-slow.c @@ -373,7 +373,7 @@ void __init of_at91sam9x5_clk_slow_setup(struct device_node *np, const char *name = np->name; int i; - num_parents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + num_parents = of_clk_get_parent_count(np); if (num_parents <= 0 || num_parents > 2) return; @@ -451,7 +451,7 @@ void __init of_at91sam9260_clk_slow_setup(struct device_node *np, const char *name = np->name; int i; - num_parents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + num_parents = of_clk_get_parent_count(np); if (num_parents != 2) return; diff --git a/drivers/clk/at91/clk-smd.c b/drivers/clk/at91/clk-smd.c index 144d47ecfe63..3817ea865ca2 100644 --- a/drivers/clk/at91/clk-smd.c +++ b/drivers/clk/at91/clk-smd.c @@ -150,7 +150,7 @@ void __init of_at91sam9x5_clk_smd_setup(struct device_node *np, const char *parent_names[SMD_SOURCE_MAX]; const char *name = np->name; - num_parents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + num_parents = of_clk_get_parent_count(np); if (num_parents <= 0 || num_parents > SMD_SOURCE_MAX) return; diff --git a/drivers/clk/at91/clk-usb.c b/drivers/clk/at91/clk-usb.c index 0b7c3e8840ba..b0cbd2b1ff59 100644 --- a/drivers/clk/at91/clk-usb.c +++ b/drivers/clk/at91/clk-usb.c @@ -378,7 +378,7 @@ void __init of_at91sam9x5_clk_usb_setup(struct device_node *np, const char *parent_names[USB_SOURCE_MAX]; const char *name = np->name; - num_parents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + num_parents = of_clk_get_parent_count(np); if (num_parents <= 0 || num_parents > USB_SOURCE_MAX) return; diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c index 3f27d21fb729..39be2be82b0a 100644 --- a/drivers/clk/at91/pmc.c +++ b/drivers/clk/at91/pmc.c @@ -153,7 +153,7 @@ static int pmc_irq_domain_xlate(struct irq_domain *d, return 0; } -static struct irq_domain_ops pmc_irq_ops = { +static const struct irq_domain_ops pmc_irq_ops = { .map = pmc_irq_map, .xlate = pmc_irq_domain_xlate, }; diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index 69abb08cf146..eb8e5dc9076d 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -121,7 +121,7 @@ extern void __init of_at91sam9x5_clk_smd_setup(struct device_node *np, struct at91_pmc *pmc); #endif -#if defined(CONFIG_HAVE_AT91_SMD) +#if defined(CONFIG_HAVE_AT91_H32MX) extern void __init of_sama5d4_clk_h32mx_setup(struct device_node *np, struct at91_pmc *pmc); #endif diff --git a/drivers/clk/bcm/Kconfig b/drivers/clk/bcm/Kconfig index 75506e53075b..88febf53b276 100644 --- a/drivers/clk/bcm/Kconfig +++ b/drivers/clk/bcm/Kconfig @@ -7,3 +7,12 @@ config CLK_BCM_KONA Enable common clock framework support for Broadcom SoCs using "Kona" style clock control units, including those in the BCM281xx and BCM21664 families. + +config COMMON_CLK_IPROC + bool "Broadcom iProc clock support" + depends on ARCH_BCM_IPROC + depends on COMMON_CLK + default ARCH_BCM_IPROC + help + Enable common clock framework support for Broadcom SoCs + based on the iProc architecture diff --git a/drivers/clk/bcm/Makefile b/drivers/clk/bcm/Makefile index 6297d05a9a10..8a7a477862c7 100644 --- a/drivers/clk/bcm/Makefile +++ b/drivers/clk/bcm/Makefile @@ -2,3 +2,5 @@ obj-$(CONFIG_CLK_BCM_KONA) += clk-kona.o obj-$(CONFIG_CLK_BCM_KONA) += clk-kona-setup.o obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm281xx.o obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm21664.o +obj-$(CONFIG_COMMON_CLK_IPROC) += clk-iproc-armpll.o clk-iproc-pll.o clk-iproc-asiu.o +obj-$(CONFIG_ARCH_BCM_CYGNUS) += clk-cygnus.o diff --git a/drivers/clk/bcm/clk-cygnus.c b/drivers/clk/bcm/clk-cygnus.c new file mode 100644 index 000000000000..316c60337661 --- /dev/null +++ b/drivers/clk/bcm/clk-cygnus.c @@ -0,0 +1,265 @@ +/* + * Copyright (C) 2014 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/clkdev.h> +#include <linux/of_address.h> +#include <linux/delay.h> + +#include <dt-bindings/clock/bcm-cygnus.h> +#include "clk-iproc.h" + +#define reg_val(o, s, w) { .offset = o, .shift = s, .width = w, } + +#define aon_val(o, pw, ps, is) { .offset = o, .pwr_width = pw, \ + .pwr_shift = ps, .iso_shift = is } + +#define sw_ctrl_val(o, s) { .offset = o, .shift = s, } + +#define asiu_div_val(o, es, hs, hw, ls, lw) \ + { .offset = o, .en_shift = es, .high_shift = hs, \ + .high_width = hw, .low_shift = ls, .low_width = lw } + +#define reset_val(o, rs, prs, kis, kiw, kps, kpw, kas, kaw) { .offset = o, \ + .reset_shift = rs, .p_reset_shift = prs, .ki_shift = kis, \ + .ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas, \ + .ka_width = kaw } + +#define vco_ctrl_val(uo, lo) { .u_offset = uo, .l_offset = lo } + +#define enable_val(o, es, hs, bs) { .offset = o, .enable_shift = es, \ + .hold_shift = hs, .bypass_shift = bs } + +#define asiu_gate_val(o, es) { .offset = o, .en_shift = es } + +static void __init cygnus_armpll_init(struct device_node *node) +{ + iproc_armpll_setup(node); +} +CLK_OF_DECLARE(cygnus_armpll, "brcm,cygnus-armpll", cygnus_armpll_init); + +static const struct iproc_pll_ctrl genpll = { + .flags = IPROC_CLK_AON | IPROC_CLK_PLL_HAS_NDIV_FRAC | + IPROC_CLK_PLL_NEEDS_SW_CFG, + .aon = aon_val(0x0, 2, 1, 0), + .reset = reset_val(0x0, 11, 10, 4, 3, 0, 4, 7, 3), + .sw_ctrl = sw_ctrl_val(0x10, 31), + .ndiv_int = reg_val(0x10, 20, 10), + .ndiv_frac = reg_val(0x10, 0, 20), + .pdiv = reg_val(0x14, 0, 4), + .vco_ctrl = vco_ctrl_val(0x18, 0x1c), + .status = reg_val(0x28, 12, 1), +}; + +static const struct iproc_clk_ctrl genpll_clk[] = { + [BCM_CYGNUS_GENPLL_AXI21_CLK] = { + .channel = BCM_CYGNUS_GENPLL_AXI21_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x4, 6, 0, 12), + .mdiv = reg_val(0x20, 0, 8), + }, + [BCM_CYGNUS_GENPLL_250MHZ_CLK] = { + .channel = BCM_CYGNUS_GENPLL_250MHZ_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x4, 7, 1, 13), + .mdiv = reg_val(0x20, 10, 8), + }, + [BCM_CYGNUS_GENPLL_IHOST_SYS_CLK] = { + .channel = BCM_CYGNUS_GENPLL_IHOST_SYS_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x4, 8, 2, 14), + .mdiv = reg_val(0x20, 20, 8), + }, + [BCM_CYGNUS_GENPLL_ENET_SW_CLK] = { + .channel = BCM_CYGNUS_GENPLL_ENET_SW_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x4, 9, 3, 15), + .mdiv = reg_val(0x24, 0, 8), + }, + [BCM_CYGNUS_GENPLL_AUDIO_125_CLK] = { + .channel = BCM_CYGNUS_GENPLL_AUDIO_125_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x4, 10, 4, 16), + .mdiv = reg_val(0x24, 10, 8), + }, + [BCM_CYGNUS_GENPLL_CAN_CLK] = { + .channel = BCM_CYGNUS_GENPLL_CAN_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x4, 11, 5, 17), + .mdiv = reg_val(0x24, 20, 8), + }, +}; + +static void __init cygnus_genpll_clk_init(struct device_node *node) +{ + iproc_pll_clk_setup(node, &genpll, NULL, 0, genpll_clk, + ARRAY_SIZE(genpll_clk)); +} +CLK_OF_DECLARE(cygnus_genpll, "brcm,cygnus-genpll", cygnus_genpll_clk_init); + +static const struct iproc_pll_ctrl lcpll0 = { + .flags = IPROC_CLK_AON | IPROC_CLK_PLL_NEEDS_SW_CFG, + .aon = aon_val(0x0, 2, 5, 4), + .reset = reset_val(0x0, 31, 30, 27, 3, 23, 4, 19, 4), + .sw_ctrl = sw_ctrl_val(0x4, 31), + .ndiv_int = reg_val(0x4, 16, 10), + .pdiv = reg_val(0x4, 26, 4), + .vco_ctrl = vco_ctrl_val(0x10, 0x14), + .status = reg_val(0x18, 12, 1), +}; + +static const struct iproc_clk_ctrl lcpll0_clk[] = { + [BCM_CYGNUS_LCPLL0_PCIE_PHY_REF_CLK] = { + .channel = BCM_CYGNUS_LCPLL0_PCIE_PHY_REF_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x0, 7, 1, 13), + .mdiv = reg_val(0x8, 0, 8), + }, + [BCM_CYGNUS_LCPLL0_DDR_PHY_CLK] = { + .channel = BCM_CYGNUS_LCPLL0_DDR_PHY_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x0, 8, 2, 14), + .mdiv = reg_val(0x8, 10, 8), + }, + [BCM_CYGNUS_LCPLL0_SDIO_CLK] = { + .channel = BCM_CYGNUS_LCPLL0_SDIO_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x0, 9, 3, 15), + .mdiv = reg_val(0x8, 20, 8), + }, + [BCM_CYGNUS_LCPLL0_USB_PHY_REF_CLK] = { + .channel = BCM_CYGNUS_LCPLL0_USB_PHY_REF_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x0, 10, 4, 16), + .mdiv = reg_val(0xc, 0, 8), + }, + [BCM_CYGNUS_LCPLL0_SMART_CARD_CLK] = { + .channel = BCM_CYGNUS_LCPLL0_SMART_CARD_CLK, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x0, 11, 5, 17), + .mdiv = reg_val(0xc, 10, 8), + }, + [BCM_CYGNUS_LCPLL0_CH5_UNUSED] = { + .channel = BCM_CYGNUS_LCPLL0_CH5_UNUSED, + .flags = IPROC_CLK_AON, + .enable = enable_val(0x0, 12, 6, 18), + .mdiv = reg_val(0xc, 20, 8), + }, +}; + +static void __init cygnus_lcpll0_clk_init(struct device_node *node) +{ + iproc_pll_clk_setup(node, &lcpll0, NULL, 0, lcpll0_clk, + ARRAY_SIZE(lcpll0_clk)); +} +CLK_OF_DECLARE(cygnus_lcpll0, "brcm,cygnus-lcpll0", cygnus_lcpll0_clk_init); + +/* + * MIPI PLL VCO frequency parameter table + */ +static const struct iproc_pll_vco_param mipipll_vco_params[] = { + /* rate (Hz) ndiv_int ndiv_frac pdiv */ + { 750000000UL, 30, 0, 1 }, + { 1000000000UL, 40, 0, 1 }, + { 1350000000ul, 54, 0, 1 }, + { 2000000000UL, 80, 0, 1 }, + { 2100000000UL, 84, 0, 1 }, + { 2250000000UL, 90, 0, 1 }, + { 2500000000UL, 100, 0, 1 }, + { 2700000000UL, 54, 0, 0 }, + { 2975000000UL, 119, 0, 1 }, + { 3100000000UL, 124, 0, 1 }, + { 3150000000UL, 126, 0, 1 }, +}; + +static const struct iproc_pll_ctrl mipipll = { + .flags = IPROC_CLK_PLL_ASIU | IPROC_CLK_PLL_HAS_NDIV_FRAC | + IPROC_CLK_NEEDS_READ_BACK, + .aon = aon_val(0x0, 4, 17, 16), + .asiu = asiu_gate_val(0x0, 3), + .reset = reset_val(0x0, 11, 10, 4, 3, 0, 4, 7, 4), + .ndiv_int = reg_val(0x10, 20, 10), + .ndiv_frac = reg_val(0x10, 0, 20), + .pdiv = reg_val(0x14, 0, 4), + .vco_ctrl = vco_ctrl_val(0x18, 0x1c), + .status = reg_val(0x28, 12, 1), +}; + +static const struct iproc_clk_ctrl mipipll_clk[] = { + [BCM_CYGNUS_MIPIPLL_CH0_UNUSED] = { + .channel = BCM_CYGNUS_MIPIPLL_CH0_UNUSED, + .flags = IPROC_CLK_NEEDS_READ_BACK, + .enable = enable_val(0x4, 12, 6, 18), + .mdiv = reg_val(0x20, 0, 8), + }, + [BCM_CYGNUS_MIPIPLL_CH1_LCD] = { + .channel = BCM_CYGNUS_MIPIPLL_CH1_LCD, + .flags = IPROC_CLK_NEEDS_READ_BACK, + .enable = enable_val(0x4, 13, 7, 19), + .mdiv = reg_val(0x20, 10, 8), + }, + [BCM_CYGNUS_MIPIPLL_CH2_V3D] = { + .channel = BCM_CYGNUS_MIPIPLL_CH2_V3D, + .flags = IPROC_CLK_NEEDS_READ_BACK, + .enable = enable_val(0x4, 14, 8, 20), + .mdiv = reg_val(0x20, 20, 8), + }, + [BCM_CYGNUS_MIPIPLL_CH3_UNUSED] = { + .channel = BCM_CYGNUS_MIPIPLL_CH3_UNUSED, + .flags = IPROC_CLK_NEEDS_READ_BACK, + .enable = enable_val(0x4, 15, 9, 21), + .mdiv = reg_val(0x24, 0, 8), + }, + [BCM_CYGNUS_MIPIPLL_CH4_UNUSED] = { + .channel = BCM_CYGNUS_MIPIPLL_CH4_UNUSED, + .flags = IPROC_CLK_NEEDS_READ_BACK, + .enable = enable_val(0x4, 16, 10, 22), + .mdiv = reg_val(0x24, 10, 8), + }, + [BCM_CYGNUS_MIPIPLL_CH5_UNUSED] = { + .channel = BCM_CYGNUS_MIPIPLL_CH5_UNUSED, + .flags = IPROC_CLK_NEEDS_READ_BACK, + .enable = enable_val(0x4, 17, 11, 23), + .mdiv = reg_val(0x24, 20, 8), + }, +}; + +static void __init cygnus_mipipll_clk_init(struct device_node *node) +{ + iproc_pll_clk_setup(node, &mipipll, mipipll_vco_params, + ARRAY_SIZE(mipipll_vco_params), mipipll_clk, + ARRAY_SIZE(mipipll_clk)); +} +CLK_OF_DECLARE(cygnus_mipipll, "brcm,cygnus-mipipll", cygnus_mipipll_clk_init); + +static const struct iproc_asiu_div asiu_div[] = { + [BCM_CYGNUS_ASIU_KEYPAD_CLK] = asiu_div_val(0x0, 31, 16, 10, 0, 10), + [BCM_CYGNUS_ASIU_ADC_CLK] = asiu_div_val(0x4, 31, 16, 10, 0, 10), + [BCM_CYGNUS_ASIU_PWM_CLK] = asiu_div_val(0x8, 31, 16, 10, 0, 10), +}; + +static const struct iproc_asiu_gate asiu_gate[] = { + [BCM_CYGNUS_ASIU_KEYPAD_CLK] = asiu_gate_val(0x0, 7), + [BCM_CYGNUS_ASIU_ADC_CLK] = asiu_gate_val(0x0, 9), + [BCM_CYGNUS_ASIU_PWM_CLK] = asiu_gate_val(IPROC_CLK_INVALID_OFFSET, 0), +}; + +static void __init cygnus_asiu_init(struct device_node *node) +{ + iproc_asiu_setup(node, asiu_div, asiu_gate, ARRAY_SIZE(asiu_div)); +} +CLK_OF_DECLARE(cygnus_asiu_clk, "brcm,cygnus-asiu-clk", cygnus_asiu_init); diff --git a/drivers/clk/bcm/clk-iproc-armpll.c b/drivers/clk/bcm/clk-iproc-armpll.c new file mode 100644 index 000000000000..a196ee28a17a --- /dev/null +++ b/drivers/clk/bcm/clk-iproc-armpll.c @@ -0,0 +1,282 @@ +/* + * Copyright (C) 2014 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/err.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/clkdev.h> +#include <linux/of_address.h> + +#define IPROC_CLK_MAX_FREQ_POLICY 0x3 +#define IPROC_CLK_POLICY_FREQ_OFFSET 0x008 +#define IPROC_CLK_POLICY_FREQ_POLICY_FREQ_SHIFT 8 +#define IPROC_CLK_POLICY_FREQ_POLICY_FREQ_MASK 0x7 + +#define IPROC_CLK_PLLARMA_OFFSET 0xc00 +#define IPROC_CLK_PLLARMA_LOCK_SHIFT 28 +#define IPROC_CLK_PLLARMA_PDIV_SHIFT 24 +#define IPROC_CLK_PLLARMA_PDIV_MASK 0xf +#define IPROC_CLK_PLLARMA_NDIV_INT_SHIFT 8 +#define IPROC_CLK_PLLARMA_NDIV_INT_MASK 0x3ff + +#define IPROC_CLK_PLLARMB_OFFSET 0xc04 +#define IPROC_CLK_PLLARMB_NDIV_FRAC_MASK 0xfffff + +#define IPROC_CLK_PLLARMC_OFFSET 0xc08 +#define IPROC_CLK_PLLARMC_BYPCLK_EN_SHIFT 8 +#define IPROC_CLK_PLLARMC_MDIV_MASK 0xff + +#define IPROC_CLK_PLLARMCTL5_OFFSET 0xc20 +#define IPROC_CLK_PLLARMCTL5_H_MDIV_MASK 0xff + +#define IPROC_CLK_PLLARM_OFFSET_OFFSET 0xc24 +#define IPROC_CLK_PLLARM_SW_CTL_SHIFT 29 +#define IPROC_CLK_PLLARM_NDIV_INT_OFFSET_SHIFT 20 +#define IPROC_CLK_PLLARM_NDIV_INT_OFFSET_MASK 0xff +#define IPROC_CLK_PLLARM_NDIV_FRAC_OFFSET_MASK 0xfffff + +#define IPROC_CLK_ARM_DIV_OFFSET 0xe00 +#define IPROC_CLK_ARM_DIV_PLL_SELECT_OVERRIDE_SHIFT 4 +#define IPROC_CLK_ARM_DIV_ARM_PLL_SELECT_MASK 0xf + +#define IPROC_CLK_POLICY_DBG_OFFSET 0xec0 +#define IPROC_CLK_POLICY_DBG_ACT_FREQ_SHIFT 12 +#define IPROC_CLK_POLICY_DBG_ACT_FREQ_MASK 0x7 + +enum iproc_arm_pll_fid { + ARM_PLL_FID_CRYSTAL_CLK = 0, + ARM_PLL_FID_SYS_CLK = 2, + ARM_PLL_FID_CH0_SLOW_CLK = 6, + ARM_PLL_FID_CH1_FAST_CLK = 7 +}; + +struct iproc_arm_pll { + struct clk_hw hw; + void __iomem *base; + unsigned long rate; +}; + +#define to_iproc_arm_pll(hw) container_of(hw, struct iproc_arm_pll, hw) + +static unsigned int __get_fid(struct iproc_arm_pll *pll) +{ + u32 val; + unsigned int policy, fid, active_fid; + + val = readl(pll->base + IPROC_CLK_ARM_DIV_OFFSET); + if (val & (1 << IPROC_CLK_ARM_DIV_PLL_SELECT_OVERRIDE_SHIFT)) + policy = val & IPROC_CLK_ARM_DIV_ARM_PLL_SELECT_MASK; + else + policy = 0; + + /* something is seriously wrong */ + BUG_ON(policy > IPROC_CLK_MAX_FREQ_POLICY); + + val = readl(pll->base + IPROC_CLK_POLICY_FREQ_OFFSET); + fid = (val >> (IPROC_CLK_POLICY_FREQ_POLICY_FREQ_SHIFT * policy)) & + IPROC_CLK_POLICY_FREQ_POLICY_FREQ_MASK; + + val = readl(pll->base + IPROC_CLK_POLICY_DBG_OFFSET); + active_fid = IPROC_CLK_POLICY_DBG_ACT_FREQ_MASK & + (val >> IPROC_CLK_POLICY_DBG_ACT_FREQ_SHIFT); + if (fid != active_fid) { + pr_debug("%s: fid override %u->%u\n", __func__, fid, + active_fid); + fid = active_fid; + } + + pr_debug("%s: active fid: %u\n", __func__, fid); + + return fid; +} + +/* + * Determine the mdiv (post divider) based on the frequency ID being used. + * There are 4 sources that can be used to derive the output clock rate: + * - 25 MHz Crystal + * - System clock + * - PLL channel 0 (slow clock) + * - PLL channel 1 (fast clock) + */ +static int __get_mdiv(struct iproc_arm_pll *pll) +{ + unsigned int fid; + int mdiv; + u32 val; + + fid = __get_fid(pll); + + switch (fid) { + case ARM_PLL_FID_CRYSTAL_CLK: + case ARM_PLL_FID_SYS_CLK: + mdiv = 1; + break; + + case ARM_PLL_FID_CH0_SLOW_CLK: + val = readl(pll->base + IPROC_CLK_PLLARMC_OFFSET); + mdiv = val & IPROC_CLK_PLLARMC_MDIV_MASK; + if (mdiv == 0) + mdiv = 256; + break; + + case ARM_PLL_FID_CH1_FAST_CLK: + val = readl(pll->base + IPROC_CLK_PLLARMCTL5_OFFSET); + mdiv = val & IPROC_CLK_PLLARMCTL5_H_MDIV_MASK; + if (mdiv == 0) + mdiv = 256; + break; + + default: + mdiv = -EFAULT; + } + + return mdiv; +} + +static unsigned int __get_ndiv(struct iproc_arm_pll *pll) +{ + u32 val; + unsigned int ndiv_int, ndiv_frac, ndiv; + + val = readl(pll->base + IPROC_CLK_PLLARM_OFFSET_OFFSET); + if (val & (1 << IPROC_CLK_PLLARM_SW_CTL_SHIFT)) { + /* + * offset mode is active. Read the ndiv from the PLLARM OFFSET + * register + */ + ndiv_int = (val >> IPROC_CLK_PLLARM_NDIV_INT_OFFSET_SHIFT) & + IPROC_CLK_PLLARM_NDIV_INT_OFFSET_MASK; + if (ndiv_int == 0) + ndiv_int = 256; + + ndiv_frac = val & IPROC_CLK_PLLARM_NDIV_FRAC_OFFSET_MASK; + } else { + /* offset mode not active */ + val = readl(pll->base + IPROC_CLK_PLLARMA_OFFSET); + ndiv_int = (val >> IPROC_CLK_PLLARMA_NDIV_INT_SHIFT) & + IPROC_CLK_PLLARMA_NDIV_INT_MASK; + if (ndiv_int == 0) + ndiv_int = 1024; + + val = readl(pll->base + IPROC_CLK_PLLARMB_OFFSET); + ndiv_frac = val & IPROC_CLK_PLLARMB_NDIV_FRAC_MASK; + } + + ndiv = (ndiv_int << 20) | ndiv_frac; + + return ndiv; +} + +/* + * The output frequency of the ARM PLL is calculated based on the ARM PLL + * divider values: + * pdiv = ARM PLL pre-divider + * ndiv = ARM PLL multiplier + * mdiv = ARM PLL post divider + * + * The frequency is calculated by: + * ((ndiv * parent clock rate) / pdiv) / mdiv + */ +static unsigned long iproc_arm_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct iproc_arm_pll *pll = to_iproc_arm_pll(hw); + u32 val; + int mdiv; + u64 ndiv; + unsigned int pdiv; + + /* in bypass mode, use parent rate */ + val = readl(pll->base + IPROC_CLK_PLLARMC_OFFSET); + if (val & (1 << IPROC_CLK_PLLARMC_BYPCLK_EN_SHIFT)) { + pll->rate = parent_rate; + return pll->rate; + } + + /* PLL needs to be locked */ + val = readl(pll->base + IPROC_CLK_PLLARMA_OFFSET); + if (!(val & (1 << IPROC_CLK_PLLARMA_LOCK_SHIFT))) { + pll->rate = 0; + return 0; + } + + pdiv = (val >> IPROC_CLK_PLLARMA_PDIV_SHIFT) & + IPROC_CLK_PLLARMA_PDIV_MASK; + if (pdiv == 0) + pdiv = 16; + + ndiv = __get_ndiv(pll); + mdiv = __get_mdiv(pll); + if (mdiv <= 0) { + pll->rate = 0; + return 0; + } + pll->rate = (ndiv * parent_rate) >> 20; + pll->rate = (pll->rate / pdiv) / mdiv; + + pr_debug("%s: ARM PLL rate: %lu. parent rate: %lu\n", __func__, + pll->rate, parent_rate); + pr_debug("%s: ndiv_int: %u, pdiv: %u, mdiv: %d\n", __func__, + (unsigned int)(ndiv >> 20), pdiv, mdiv); + + return pll->rate; +} + +static const struct clk_ops iproc_arm_pll_ops = { + .recalc_rate = iproc_arm_pll_recalc_rate, +}; + +void __init iproc_armpll_setup(struct device_node *node) +{ + int ret; + struct clk *clk; + struct iproc_arm_pll *pll; + struct clk_init_data init; + const char *parent_name; + + pll = kzalloc(sizeof(*pll), GFP_KERNEL); + if (WARN_ON(!pll)) + return; + + pll->base = of_iomap(node, 0); + if (WARN_ON(!pll->base)) + goto err_free_pll; + + init.name = node->name; + init.ops = &iproc_arm_pll_ops; + init.flags = 0; + parent_name = of_clk_get_parent_name(node, 0); + init.parent_names = (parent_name ? &parent_name : NULL); + init.num_parents = (parent_name ? 1 : 0); + pll->hw.init = &init; + + clk = clk_register(NULL, &pll->hw); + if (WARN_ON(IS_ERR(clk))) + goto err_iounmap; + + ret = of_clk_add_provider(node, of_clk_src_simple_get, clk); + if (WARN_ON(ret)) + goto err_clk_unregister; + + return; + +err_clk_unregister: + clk_unregister(clk); +err_iounmap: + iounmap(pll->base); +err_free_pll: + kfree(pll); +} diff --git a/drivers/clk/bcm/clk-iproc-asiu.c b/drivers/clk/bcm/clk-iproc-asiu.c new file mode 100644 index 000000000000..e19c09cd9645 --- /dev/null +++ b/drivers/clk/bcm/clk-iproc-asiu.c @@ -0,0 +1,276 @@ +/* + * Copyright (C) 2014 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/clkdev.h> +#include <linux/of_address.h> +#include <linux/delay.h> + +#include "clk-iproc.h" + +struct iproc_asiu; + +struct iproc_asiu_clk { + struct clk_hw hw; + const char *name; + struct iproc_asiu *asiu; + unsigned long rate; + struct iproc_asiu_div div; + struct iproc_asiu_gate gate; +}; + +struct iproc_asiu { + void __iomem *div_base; + void __iomem *gate_base; + + struct clk_onecell_data clk_data; + struct iproc_asiu_clk *clks; +}; + +#define to_asiu_clk(hw) container_of(hw, struct iproc_asiu_clk, hw) + +static int iproc_asiu_clk_enable(struct clk_hw *hw) +{ + struct iproc_asiu_clk *clk = to_asiu_clk(hw); + struct iproc_asiu *asiu = clk->asiu; + u32 val; + + /* some clocks at the ASIU level are always enabled */ + if (clk->gate.offset == IPROC_CLK_INVALID_OFFSET) + return 0; + + val = readl(asiu->gate_base + clk->gate.offset); + val |= (1 << clk->gate.en_shift); + writel(val, asiu->gate_base + clk->gate.offset); + + return 0; +} + +static void iproc_asiu_clk_disable(struct clk_hw *hw) +{ + struct iproc_asiu_clk *clk = to_asiu_clk(hw); + struct iproc_asiu *asiu = clk->asiu; + u32 val; + + /* some clocks at the ASIU level are always enabled */ + if (clk->gate.offset == IPROC_CLK_INVALID_OFFSET) + return; + + val = readl(asiu->gate_base + clk->gate.offset); + val &= ~(1 << clk->gate.en_shift); + writel(val, asiu->gate_base + clk->gate.offset); +} + +static unsigned long iproc_asiu_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct iproc_asiu_clk *clk = to_asiu_clk(hw); + struct iproc_asiu *asiu = clk->asiu; + u32 val; + unsigned int div_h, div_l; + + if (parent_rate == 0) { + clk->rate = 0; + return 0; + } + + /* if clock divisor is not enabled, simply return parent rate */ + val = readl(asiu->div_base + clk->div.offset); + if ((val & (1 << clk->div.en_shift)) == 0) { + clk->rate = parent_rate; + return parent_rate; + } + + /* clock rate = parent rate / (high_div + 1) + (low_div + 1) */ + div_h = (val >> clk->div.high_shift) & bit_mask(clk->div.high_width); + div_h++; + div_l = (val >> clk->div.low_shift) & bit_mask(clk->div.low_width); + div_l++; + + clk->rate = parent_rate / (div_h + div_l); + pr_debug("%s: rate: %lu. parent rate: %lu div_h: %u div_l: %u\n", + __func__, clk->rate, parent_rate, div_h, div_l); + + return clk->rate; +} + +static long iproc_asiu_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + unsigned int div; + + if (rate == 0 || *parent_rate == 0) + return -EINVAL; + + if (rate == *parent_rate) + return *parent_rate; + + div = DIV_ROUND_UP(*parent_rate, rate); + if (div < 2) + return *parent_rate; + + return *parent_rate / div; +} + +static int iproc_asiu_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct iproc_asiu_clk *clk = to_asiu_clk(hw); + struct iproc_asiu *asiu = clk->asiu; + unsigned int div, div_h, div_l; + u32 val; + + if (rate == 0 || parent_rate == 0) + return -EINVAL; + + /* simply disable the divisor if one wants the same rate as parent */ + if (rate == parent_rate) { + val = readl(asiu->div_base + clk->div.offset); + val &= ~(1 << clk->div.en_shift); + writel(val, asiu->div_base + clk->div.offset); + return 0; + } + + div = DIV_ROUND_UP(parent_rate, rate); + if (div < 2) + return -EINVAL; + + div_h = div_l = div >> 1; + div_h--; + div_l--; + + val = readl(asiu->div_base + clk->div.offset); + val |= 1 << clk->div.en_shift; + if (div_h) { + val &= ~(bit_mask(clk->div.high_width) + << clk->div.high_shift); + val |= div_h << clk->div.high_shift; + } else { + val &= ~(bit_mask(clk->div.high_width) + << clk->div.high_shift); + } + if (div_l) { + val &= ~(bit_mask(clk->div.low_width) << clk->div.low_shift); + val |= div_l << clk->div.low_shift; + } else { + val &= ~(bit_mask(clk->div.low_width) << clk->div.low_shift); + } + writel(val, asiu->div_base + clk->div.offset); + + return 0; +} + +static const struct clk_ops iproc_asiu_ops = { + .enable = iproc_asiu_clk_enable, + .disable = iproc_asiu_clk_disable, + .recalc_rate = iproc_asiu_clk_recalc_rate, + .round_rate = iproc_asiu_clk_round_rate, + .set_rate = iproc_asiu_clk_set_rate, +}; + +void __init iproc_asiu_setup(struct device_node *node, + const struct iproc_asiu_div *div, + const struct iproc_asiu_gate *gate, + unsigned int num_clks) +{ + int i, ret; + struct iproc_asiu *asiu; + + if (WARN_ON(!gate || !div)) + return; + + asiu = kzalloc(sizeof(*asiu), GFP_KERNEL); + if (WARN_ON(!asiu)) + return; + + asiu->clk_data.clk_num = num_clks; + asiu->clk_data.clks = kcalloc(num_clks, sizeof(*asiu->clk_data.clks), + GFP_KERNEL); + if (WARN_ON(!asiu->clk_data.clks)) + goto err_clks; + + asiu->clks = kcalloc(num_clks, sizeof(*asiu->clks), GFP_KERNEL); + if (WARN_ON(!asiu->clks)) + goto err_asiu_clks; + + asiu->div_base = of_iomap(node, 0); + if (WARN_ON(!asiu->div_base)) + goto err_iomap_div; + + asiu->gate_base = of_iomap(node, 1); + if (WARN_ON(!asiu->gate_base)) + goto err_iomap_gate; + + for (i = 0; i < num_clks; i++) { + struct clk_init_data init; + struct clk *clk; + const char *parent_name; + struct iproc_asiu_clk *asiu_clk; + const char *clk_name; + + clk_name = kzalloc(IPROC_CLK_NAME_LEN, GFP_KERNEL); + if (WARN_ON(!clk_name)) + goto err_clk_register; + + ret = of_property_read_string_index(node, "clock-output-names", + i, &clk_name); + if (WARN_ON(ret)) + goto err_clk_register; + + asiu_clk = &asiu->clks[i]; + asiu_clk->name = clk_name; + asiu_clk->asiu = asiu; + asiu_clk->div = div[i]; + asiu_clk->gate = gate[i]; + init.name = clk_name; + init.ops = &iproc_asiu_ops; + init.flags = 0; + parent_name = of_clk_get_parent_name(node, 0); + init.parent_names = (parent_name ? &parent_name : NULL); + init.num_parents = (parent_name ? 1 : 0); + asiu_clk->hw.init = &init; + + clk = clk_register(NULL, &asiu_clk->hw); + if (WARN_ON(IS_ERR(clk))) + goto err_clk_register; + asiu->clk_data.clks[i] = clk; + } + + ret = of_clk_add_provider(node, of_clk_src_onecell_get, + &asiu->clk_data); + if (WARN_ON(ret)) + goto err_clk_register; + + return; + +err_clk_register: + for (i = 0; i < num_clks; i++) + kfree(asiu->clks[i].name); + iounmap(asiu->gate_base); + +err_iomap_gate: + iounmap(asiu->div_base); + +err_iomap_div: + kfree(asiu->clks); + +err_asiu_clks: + kfree(asiu->clk_data.clks); + +err_clks: + kfree(asiu); +} diff --git a/drivers/clk/bcm/clk-iproc-pll.c b/drivers/clk/bcm/clk-iproc-pll.c new file mode 100644 index 000000000000..46fb84bc2674 --- /dev/null +++ b/drivers/clk/bcm/clk-iproc-pll.c @@ -0,0 +1,716 @@ +/* + * Copyright (C) 2014 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/clkdev.h> +#include <linux/of_address.h> +#include <linux/delay.h> + +#include "clk-iproc.h" + +#define PLL_VCO_HIGH_SHIFT 19 +#define PLL_VCO_LOW_SHIFT 30 + +/* number of delay loops waiting for PLL to lock */ +#define LOCK_DELAY 100 + +/* number of VCO frequency bands */ +#define NUM_FREQ_BANDS 8 + +#define NUM_KP_BANDS 3 +enum kp_band { + KP_BAND_MID = 0, + KP_BAND_HIGH, + KP_BAND_HIGH_HIGH +}; + +static const unsigned int kp_table[NUM_KP_BANDS][NUM_FREQ_BANDS] = { + { 5, 6, 6, 7, 7, 8, 9, 10 }, + { 4, 4, 5, 5, 6, 7, 8, 9 }, + { 4, 5, 5, 6, 7, 8, 9, 10 }, +}; + +static const unsigned long ref_freq_table[NUM_FREQ_BANDS][2] = { + { 10000000, 12500000 }, + { 12500000, 15000000 }, + { 15000000, 20000000 }, + { 20000000, 25000000 }, + { 25000000, 50000000 }, + { 50000000, 75000000 }, + { 75000000, 100000000 }, + { 100000000, 125000000 }, +}; + +enum vco_freq_range { + VCO_LOW = 700000000U, + VCO_MID = 1200000000U, + VCO_HIGH = 2200000000U, + VCO_HIGH_HIGH = 3100000000U, + VCO_MAX = 4000000000U, +}; + +struct iproc_pll; + +struct iproc_clk { + struct clk_hw hw; + const char *name; + struct iproc_pll *pll; + unsigned long rate; + const struct iproc_clk_ctrl *ctrl; +}; + +struct iproc_pll { + void __iomem *pll_base; + void __iomem *pwr_base; + void __iomem *asiu_base; + + const struct iproc_pll_ctrl *ctrl; + const struct iproc_pll_vco_param *vco_param; + unsigned int num_vco_entries; + + struct clk_onecell_data clk_data; + struct iproc_clk *clks; +}; + +#define to_iproc_clk(hw) container_of(hw, struct iproc_clk, hw) + +/* + * Based on the target frequency, find a match from the VCO frequency parameter + * table and return its index + */ +static int pll_get_rate_index(struct iproc_pll *pll, unsigned int target_rate) +{ + int i; + + for (i = 0; i < pll->num_vco_entries; i++) + if (target_rate == pll->vco_param[i].rate) + break; + + if (i >= pll->num_vco_entries) + return -EINVAL; + + return i; +} + +static int get_kp(unsigned long ref_freq, enum kp_band kp_index) +{ + int i; + + if (ref_freq < ref_freq_table[0][0]) + return -EINVAL; + + for (i = 0; i < NUM_FREQ_BANDS; i++) { + if (ref_freq >= ref_freq_table[i][0] && + ref_freq < ref_freq_table[i][1]) + return kp_table[kp_index][i]; + } + return -EINVAL; +} + +static int pll_wait_for_lock(struct iproc_pll *pll) +{ + int i; + const struct iproc_pll_ctrl *ctrl = pll->ctrl; + + for (i = 0; i < LOCK_DELAY; i++) { + u32 val = readl(pll->pll_base + ctrl->status.offset); + + if (val & (1 << ctrl->status.shift)) + return 0; + udelay(10); + } + + return -EIO; +} + +static void __pll_disable(struct iproc_pll *pll) +{ + const struct iproc_pll_ctrl *ctrl = pll->ctrl; + u32 val; + + if (ctrl->flags & IPROC_CLK_PLL_ASIU) { + val = readl(pll->asiu_base + ctrl->asiu.offset); + val &= ~(1 << ctrl->asiu.en_shift); + writel(val, pll->asiu_base + ctrl->asiu.offset); + } + + /* latch input value so core power can be shut down */ + val = readl(pll->pwr_base + ctrl->aon.offset); + val |= (1 << ctrl->aon.iso_shift); + writel(val, pll->pwr_base + ctrl->aon.offset); + + /* power down the core */ + val &= ~(bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift); + writel(val, pll->pwr_base + ctrl->aon.offset); +} + +static int __pll_enable(struct iproc_pll *pll) +{ + const struct iproc_pll_ctrl *ctrl = pll->ctrl; + u32 val; + + /* power up the PLL and make sure it's not latched */ + val = readl(pll->pwr_base + ctrl->aon.offset); + val |= bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift; + val &= ~(1 << ctrl->aon.iso_shift); + writel(val, pll->pwr_base + ctrl->aon.offset); + + /* certain PLLs also need to be ungated from the ASIU top level */ + if (ctrl->flags & IPROC_CLK_PLL_ASIU) { + val = readl(pll->asiu_base + ctrl->asiu.offset); + val |= (1 << ctrl->asiu.en_shift); + writel(val, pll->asiu_base + ctrl->asiu.offset); + } + + return 0; +} + +static void __pll_put_in_reset(struct iproc_pll *pll) +{ + u32 val; + const struct iproc_pll_ctrl *ctrl = pll->ctrl; + const struct iproc_pll_reset_ctrl *reset = &ctrl->reset; + + val = readl(pll->pll_base + reset->offset); + val &= ~(1 << reset->reset_shift | 1 << reset->p_reset_shift); + writel(val, pll->pll_base + reset->offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + reset->offset); +} + +static void __pll_bring_out_reset(struct iproc_pll *pll, unsigned int kp, + unsigned int ka, unsigned int ki) +{ + u32 val; + const struct iproc_pll_ctrl *ctrl = pll->ctrl; + const struct iproc_pll_reset_ctrl *reset = &ctrl->reset; + + val = readl(pll->pll_base + reset->offset); + val &= ~(bit_mask(reset->ki_width) << reset->ki_shift | + bit_mask(reset->kp_width) << reset->kp_shift | + bit_mask(reset->ka_width) << reset->ka_shift); + val |= ki << reset->ki_shift | kp << reset->kp_shift | + ka << reset->ka_shift; + val |= 1 << reset->reset_shift | 1 << reset->p_reset_shift; + writel(val, pll->pll_base + reset->offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + reset->offset); +} + +static int pll_set_rate(struct iproc_clk *clk, unsigned int rate_index, + unsigned long parent_rate) +{ + struct iproc_pll *pll = clk->pll; + const struct iproc_pll_vco_param *vco = &pll->vco_param[rate_index]; + const struct iproc_pll_ctrl *ctrl = pll->ctrl; + int ka = 0, ki, kp, ret; + unsigned long rate = vco->rate; + u32 val; + enum kp_band kp_index; + unsigned long ref_freq; + + /* + * reference frequency = parent frequency / PDIV + * If PDIV = 0, then it becomes a multiplier (x2) + */ + if (vco->pdiv == 0) + ref_freq = parent_rate * 2; + else + ref_freq = parent_rate / vco->pdiv; + + /* determine Ki and Kp index based on target VCO frequency */ + if (rate >= VCO_LOW && rate < VCO_HIGH) { + ki = 4; + kp_index = KP_BAND_MID; + } else if (rate >= VCO_HIGH && rate && rate < VCO_HIGH_HIGH) { + ki = 3; + kp_index = KP_BAND_HIGH; + } else if (rate >= VCO_HIGH_HIGH && rate < VCO_MAX) { + ki = 3; + kp_index = KP_BAND_HIGH_HIGH; + } else { + pr_err("%s: pll: %s has invalid rate: %lu\n", __func__, + clk->name, rate); + return -EINVAL; + } + + kp = get_kp(ref_freq, kp_index); + if (kp < 0) { + pr_err("%s: pll: %s has invalid kp\n", __func__, clk->name); + return kp; + } + + ret = __pll_enable(pll); + if (ret) { + pr_err("%s: pll: %s fails to enable\n", __func__, clk->name); + return ret; + } + + /* put PLL in reset */ + __pll_put_in_reset(pll); + + writel(0, pll->pll_base + ctrl->vco_ctrl.u_offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + ctrl->vco_ctrl.u_offset); + val = readl(pll->pll_base + ctrl->vco_ctrl.l_offset); + + if (rate >= VCO_LOW && rate < VCO_MID) + val |= (1 << PLL_VCO_LOW_SHIFT); + + if (rate < VCO_HIGH) + val &= ~(1 << PLL_VCO_HIGH_SHIFT); + else + val |= (1 << PLL_VCO_HIGH_SHIFT); + + writel(val, pll->pll_base + ctrl->vco_ctrl.l_offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + ctrl->vco_ctrl.l_offset); + + /* program integer part of NDIV */ + val = readl(pll->pll_base + ctrl->ndiv_int.offset); + val &= ~(bit_mask(ctrl->ndiv_int.width) << ctrl->ndiv_int.shift); + val |= vco->ndiv_int << ctrl->ndiv_int.shift; + writel(val, pll->pll_base + ctrl->ndiv_int.offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + ctrl->ndiv_int.offset); + + /* program fractional part of NDIV */ + if (ctrl->flags & IPROC_CLK_PLL_HAS_NDIV_FRAC) { + val = readl(pll->pll_base + ctrl->ndiv_frac.offset); + val &= ~(bit_mask(ctrl->ndiv_frac.width) << + ctrl->ndiv_frac.shift); + val |= vco->ndiv_frac << ctrl->ndiv_frac.shift; + writel(val, pll->pll_base + ctrl->ndiv_frac.offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + ctrl->ndiv_frac.offset); + } + + /* program PDIV */ + val = readl(pll->pll_base + ctrl->pdiv.offset); + val &= ~(bit_mask(ctrl->pdiv.width) << ctrl->pdiv.shift); + val |= vco->pdiv << ctrl->pdiv.shift; + writel(val, pll->pll_base + ctrl->pdiv.offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + ctrl->pdiv.offset); + + __pll_bring_out_reset(pll, kp, ka, ki); + + ret = pll_wait_for_lock(pll); + if (ret < 0) { + pr_err("%s: pll: %s failed to lock\n", __func__, clk->name); + return ret; + } + + return 0; +} + +static int iproc_pll_enable(struct clk_hw *hw) +{ + struct iproc_clk *clk = to_iproc_clk(hw); + struct iproc_pll *pll = clk->pll; + + return __pll_enable(pll); +} + +static void iproc_pll_disable(struct clk_hw *hw) +{ + struct iproc_clk *clk = to_iproc_clk(hw); + struct iproc_pll *pll = clk->pll; + const struct iproc_pll_ctrl *ctrl = pll->ctrl; + + if (ctrl->flags & IPROC_CLK_AON) + return; + + __pll_disable(pll); +} + +static unsigned long iproc_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct iproc_clk *clk = to_iproc_clk(hw); + struct iproc_pll *pll = clk->pll; + const struct iproc_pll_ctrl *ctrl = pll->ctrl; + u32 val; + u64 ndiv; + unsigned int ndiv_int, ndiv_frac, pdiv; + + if (parent_rate == 0) + return 0; + + /* PLL needs to be locked */ + val = readl(pll->pll_base + ctrl->status.offset); + if ((val & (1 << ctrl->status.shift)) == 0) { + clk->rate = 0; + return 0; + } + + /* + * PLL output frequency = + * + * ((ndiv_int + ndiv_frac / 2^20) * (parent clock rate / pdiv) + */ + val = readl(pll->pll_base + ctrl->ndiv_int.offset); + ndiv_int = (val >> ctrl->ndiv_int.shift) & + bit_mask(ctrl->ndiv_int.width); + ndiv = ndiv_int << ctrl->ndiv_int.shift; + + if (ctrl->flags & IPROC_CLK_PLL_HAS_NDIV_FRAC) { + val = readl(pll->pll_base + ctrl->ndiv_frac.offset); + ndiv_frac = (val >> ctrl->ndiv_frac.shift) & + bit_mask(ctrl->ndiv_frac.width); + + if (ndiv_frac != 0) + ndiv = (ndiv_int << ctrl->ndiv_int.shift) | ndiv_frac; + } + + val = readl(pll->pll_base + ctrl->pdiv.offset); + pdiv = (val >> ctrl->pdiv.shift) & bit_mask(ctrl->pdiv.width); + + clk->rate = (ndiv * parent_rate) >> ctrl->ndiv_int.shift; + + if (pdiv == 0) + clk->rate *= 2; + else + clk->rate /= pdiv; + + return clk->rate; +} + +static long iproc_pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + unsigned i; + struct iproc_clk *clk = to_iproc_clk(hw); + struct iproc_pll *pll = clk->pll; + + if (rate == 0 || *parent_rate == 0 || !pll->vco_param) + return -EINVAL; + + for (i = 0; i < pll->num_vco_entries; i++) { + if (rate <= pll->vco_param[i].rate) + break; + } + + if (i == pll->num_vco_entries) + i--; + + return pll->vco_param[i].rate; +} + +static int iproc_pll_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct iproc_clk *clk = to_iproc_clk(hw); + struct iproc_pll *pll = clk->pll; + int rate_index, ret; + + rate_index = pll_get_rate_index(pll, rate); + if (rate_index < 0) + return rate_index; + + ret = pll_set_rate(clk, rate_index, parent_rate); + return ret; +} + +static const struct clk_ops iproc_pll_ops = { + .enable = iproc_pll_enable, + .disable = iproc_pll_disable, + .recalc_rate = iproc_pll_recalc_rate, + .round_rate = iproc_pll_round_rate, + .set_rate = iproc_pll_set_rate, +}; + +static int iproc_clk_enable(struct clk_hw *hw) +{ + struct iproc_clk *clk = to_iproc_clk(hw); + const struct iproc_clk_ctrl *ctrl = clk->ctrl; + struct iproc_pll *pll = clk->pll; + u32 val; + + /* channel enable is active low */ + val = readl(pll->pll_base + ctrl->enable.offset); + val &= ~(1 << ctrl->enable.enable_shift); + writel(val, pll->pll_base + ctrl->enable.offset); + + /* also make sure channel is not held */ + val = readl(pll->pll_base + ctrl->enable.offset); + val &= ~(1 << ctrl->enable.hold_shift); + writel(val, pll->pll_base + ctrl->enable.offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + ctrl->enable.offset); + + return 0; +} + +static void iproc_clk_disable(struct clk_hw *hw) +{ + struct iproc_clk *clk = to_iproc_clk(hw); + const struct iproc_clk_ctrl *ctrl = clk->ctrl; + struct iproc_pll *pll = clk->pll; + u32 val; + + if (ctrl->flags & IPROC_CLK_AON) + return; + + val = readl(pll->pll_base + ctrl->enable.offset); + val |= 1 << ctrl->enable.enable_shift; + writel(val, pll->pll_base + ctrl->enable.offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + ctrl->enable.offset); +} + +static unsigned long iproc_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct iproc_clk *clk = to_iproc_clk(hw); + const struct iproc_clk_ctrl *ctrl = clk->ctrl; + struct iproc_pll *pll = clk->pll; + u32 val; + unsigned int mdiv; + + if (parent_rate == 0) + return 0; + + val = readl(pll->pll_base + ctrl->mdiv.offset); + mdiv = (val >> ctrl->mdiv.shift) & bit_mask(ctrl->mdiv.width); + if (mdiv == 0) + mdiv = 256; + + clk->rate = parent_rate / mdiv; + + return clk->rate; +} + +static long iproc_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + unsigned int div; + + if (rate == 0 || *parent_rate == 0) + return -EINVAL; + + if (rate == *parent_rate) + return *parent_rate; + + div = DIV_ROUND_UP(*parent_rate, rate); + if (div < 2) + return *parent_rate; + + if (div > 256) + div = 256; + + return *parent_rate / div; +} + +static int iproc_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct iproc_clk *clk = to_iproc_clk(hw); + const struct iproc_clk_ctrl *ctrl = clk->ctrl; + struct iproc_pll *pll = clk->pll; + u32 val; + unsigned int div; + + if (rate == 0 || parent_rate == 0) + return -EINVAL; + + div = DIV_ROUND_UP(parent_rate, rate); + if (div > 256) + return -EINVAL; + + val = readl(pll->pll_base + ctrl->mdiv.offset); + if (div == 256) { + val &= ~(bit_mask(ctrl->mdiv.width) << ctrl->mdiv.shift); + } else { + val &= ~(bit_mask(ctrl->mdiv.width) << ctrl->mdiv.shift); + val |= div << ctrl->mdiv.shift; + } + writel(val, pll->pll_base + ctrl->mdiv.offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + ctrl->mdiv.offset); + clk->rate = parent_rate / div; + + return 0; +} + +static const struct clk_ops iproc_clk_ops = { + .enable = iproc_clk_enable, + .disable = iproc_clk_disable, + .recalc_rate = iproc_clk_recalc_rate, + .round_rate = iproc_clk_round_rate, + .set_rate = iproc_clk_set_rate, +}; + +/** + * Some PLLs require the PLL SW override bit to be set before changes can be + * applied to the PLL + */ +static void iproc_pll_sw_cfg(struct iproc_pll *pll) +{ + const struct iproc_pll_ctrl *ctrl = pll->ctrl; + + if (ctrl->flags & IPROC_CLK_PLL_NEEDS_SW_CFG) { + u32 val; + + val = readl(pll->pll_base + ctrl->sw_ctrl.offset); + val |= BIT(ctrl->sw_ctrl.shift); + writel(val, pll->pll_base + ctrl->sw_ctrl.offset); + if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK)) + readl(pll->pll_base + ctrl->sw_ctrl.offset); + } +} + +void __init iproc_pll_clk_setup(struct device_node *node, + const struct iproc_pll_ctrl *pll_ctrl, + const struct iproc_pll_vco_param *vco, + unsigned int num_vco_entries, + const struct iproc_clk_ctrl *clk_ctrl, + unsigned int num_clks) +{ + int i, ret; + struct clk *clk; + struct iproc_pll *pll; + struct iproc_clk *iclk; + struct clk_init_data init; + const char *parent_name; + + if (WARN_ON(!pll_ctrl) || WARN_ON(!clk_ctrl)) + return; + + pll = kzalloc(sizeof(*pll), GFP_KERNEL); + if (WARN_ON(!pll)) + return; + + pll->clk_data.clk_num = num_clks; + pll->clk_data.clks = kcalloc(num_clks, sizeof(*pll->clk_data.clks), + GFP_KERNEL); + if (WARN_ON(!pll->clk_data.clks)) + goto err_clk_data; + + pll->clks = kcalloc(num_clks, sizeof(*pll->clks), GFP_KERNEL); + if (WARN_ON(!pll->clks)) + goto err_clks; + + pll->pll_base = of_iomap(node, 0); + if (WARN_ON(!pll->pll_base)) + goto err_pll_iomap; + + pll->pwr_base = of_iomap(node, 1); + if (WARN_ON(!pll->pwr_base)) + goto err_pwr_iomap; + + /* some PLLs require gating control at the top ASIU level */ + if (pll_ctrl->flags & IPROC_CLK_PLL_ASIU) { + pll->asiu_base = of_iomap(node, 2); + if (WARN_ON(!pll->asiu_base)) + goto err_asiu_iomap; + } + + /* initialize and register the PLL itself */ + pll->ctrl = pll_ctrl; + + iclk = &pll->clks[0]; + iclk->pll = pll; + iclk->name = node->name; + + init.name = node->name; + init.ops = &iproc_pll_ops; + init.flags = 0; + parent_name = of_clk_get_parent_name(node, 0); + init.parent_names = (parent_name ? &parent_name : NULL); + init.num_parents = (parent_name ? 1 : 0); + iclk->hw.init = &init; + + if (vco) { + pll->num_vco_entries = num_vco_entries; + pll->vco_param = vco; + } + + iproc_pll_sw_cfg(pll); + + clk = clk_register(NULL, &iclk->hw); + if (WARN_ON(IS_ERR(clk))) + goto err_pll_register; + + pll->clk_data.clks[0] = clk; + + /* now initialize and register all leaf clocks */ + for (i = 1; i < num_clks; i++) { + const char *clk_name; + + memset(&init, 0, sizeof(init)); + parent_name = node->name; + + clk_name = kzalloc(IPROC_CLK_NAME_LEN, GFP_KERNEL); + if (WARN_ON(!clk_name)) + goto err_clk_register; + + ret = of_property_read_string_index(node, "clock-output-names", + i, &clk_name); + if (WARN_ON(ret)) + goto err_clk_register; + + iclk = &pll->clks[i]; + iclk->name = clk_name; + iclk->pll = pll; + iclk->ctrl = &clk_ctrl[i]; + + init.name = clk_name; + init.ops = &iproc_clk_ops; + init.flags = 0; + init.parent_names = (parent_name ? &parent_name : NULL); + init.num_parents = (parent_name ? 1 : 0); + iclk->hw.init = &init; + + clk = clk_register(NULL, &iclk->hw); + if (WARN_ON(IS_ERR(clk))) + goto err_clk_register; + + pll->clk_data.clks[i] = clk; + } + + ret = of_clk_add_provider(node, of_clk_src_onecell_get, &pll->clk_data); + if (WARN_ON(ret)) + goto err_clk_register; + + return; + +err_clk_register: + for (i = 0; i < num_clks; i++) { + kfree(pll->clks[i].name); + clk_unregister(pll->clk_data.clks[i]); + } + +err_pll_register: + if (pll->asiu_base) + iounmap(pll->asiu_base); + +err_asiu_iomap: + iounmap(pll->pwr_base); + +err_pwr_iomap: + iounmap(pll->pll_base); + +err_pll_iomap: + kfree(pll->clks); + +err_clks: + kfree(pll->clk_data.clks); + +err_clk_data: + kfree(pll); +} diff --git a/drivers/clk/bcm/clk-iproc.h b/drivers/clk/bcm/clk-iproc.h new file mode 100644 index 000000000000..d834b7abd5c6 --- /dev/null +++ b/drivers/clk/bcm/clk-iproc.h @@ -0,0 +1,178 @@ +/* + * Copyright (C) 2014 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _CLK_IPROC_H +#define _CLK_IPROC_H + +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/slab.h> +#include <linux/device.h> +#include <linux/of.h> +#include <linux/clk-provider.h> + +#define IPROC_CLK_NAME_LEN 25 +#define IPROC_CLK_INVALID_OFFSET 0xffffffff +#define bit_mask(width) ((1 << (width)) - 1) + +/* clocks that should not be disabled at runtime */ +#define IPROC_CLK_AON BIT(0) + +/* PLL that requires gating through ASIU */ +#define IPROC_CLK_PLL_ASIU BIT(1) + +/* PLL that has fractional part of the NDIV */ +#define IPROC_CLK_PLL_HAS_NDIV_FRAC BIT(2) + +/* + * Some of the iProc PLL/clocks may have an ASIC bug that requires read back + * of the same register following the write to flush the write transaction into + * the intended register + */ +#define IPROC_CLK_NEEDS_READ_BACK BIT(3) + +/* + * Some PLLs require the PLL SW override bit to be set before changes can be + * applied to the PLL + */ +#define IPROC_CLK_PLL_NEEDS_SW_CFG BIT(4) + +/* + * Parameters for VCO frequency configuration + * + * VCO frequency = + * ((ndiv_int + ndiv_frac / 2^20) * (ref freqeuncy / pdiv) + */ +struct iproc_pll_vco_param { + unsigned long rate; + unsigned int ndiv_int; + unsigned int ndiv_frac; + unsigned int pdiv; +}; + +struct iproc_clk_reg_op { + unsigned int offset; + unsigned int shift; + unsigned int width; +}; + +/* + * Clock gating control at the top ASIU level + */ +struct iproc_asiu_gate { + unsigned int offset; + unsigned int en_shift; +}; + +/* + * Control of powering on/off of a PLL + * + * Before powering off a PLL, input isolation (ISO) needs to be enabled + */ +struct iproc_pll_aon_pwr_ctrl { + unsigned int offset; + unsigned int pwr_width; + unsigned int pwr_shift; + unsigned int iso_shift; +}; + +/* + * Control of the PLL reset, with Ki, Kp, and Ka parameters + */ +struct iproc_pll_reset_ctrl { + unsigned int offset; + unsigned int reset_shift; + unsigned int p_reset_shift; + unsigned int ki_shift; + unsigned int ki_width; + unsigned int kp_shift; + unsigned int kp_width; + unsigned int ka_shift; + unsigned int ka_width; +}; + +/* + * To enable SW control of the PLL + */ +struct iproc_pll_sw_ctrl { + unsigned int offset; + unsigned int shift; +}; + +struct iproc_pll_vco_ctrl { + unsigned int u_offset; + unsigned int l_offset; +}; + +/* + * Main PLL control parameters + */ +struct iproc_pll_ctrl { + unsigned long flags; + struct iproc_pll_aon_pwr_ctrl aon; + struct iproc_asiu_gate asiu; + struct iproc_pll_reset_ctrl reset; + struct iproc_pll_sw_ctrl sw_ctrl; + struct iproc_clk_reg_op ndiv_int; + struct iproc_clk_reg_op ndiv_frac; + struct iproc_clk_reg_op pdiv; + struct iproc_pll_vco_ctrl vco_ctrl; + struct iproc_clk_reg_op status; +}; + +/* + * Controls enabling/disabling a PLL derived clock + */ +struct iproc_clk_enable_ctrl { + unsigned int offset; + unsigned int enable_shift; + unsigned int hold_shift; + unsigned int bypass_shift; +}; + +/* + * Main clock control parameters for clocks derived from the PLLs + */ +struct iproc_clk_ctrl { + unsigned int channel; + unsigned long flags; + struct iproc_clk_enable_ctrl enable; + struct iproc_clk_reg_op mdiv; +}; + +/* + * Divisor of the ASIU clocks + */ +struct iproc_asiu_div { + unsigned int offset; + unsigned int en_shift; + unsigned int high_shift; + unsigned int high_width; + unsigned int low_shift; + unsigned int low_width; +}; + +void __init iproc_armpll_setup(struct device_node *node); +void __init iproc_pll_clk_setup(struct device_node *node, + const struct iproc_pll_ctrl *pll_ctrl, + const struct iproc_pll_vco_param *vco, + unsigned int num_vco_entries, + const struct iproc_clk_ctrl *clk_ctrl, + unsigned int num_clks); +void __init iproc_asiu_setup(struct device_node *node, + const struct iproc_asiu_div *div, + const struct iproc_asiu_gate *gate, + unsigned int num_clks); + +#endif /* _CLK_IPROC_H */ diff --git a/drivers/clk/bcm/clk-kona-setup.c b/drivers/clk/bcm/clk-kona-setup.c index e5aededdd322..deaa7f962b84 100644 --- a/drivers/clk/bcm/clk-kona-setup.c +++ b/drivers/clk/bcm/clk-kona-setup.c @@ -21,8 +21,6 @@ #define selector_clear_exists(sel) ((sel)->width = 0) #define trigger_clear_exists(trig) FLAG_CLEAR(trig, TRIG, EXISTS) -LIST_HEAD(ccu_list); /* The list of set up CCUs */ - /* Validity checking */ static bool ccu_data_offsets_valid(struct ccu_data *ccu) @@ -773,7 +771,6 @@ static void kona_ccu_teardown(struct ccu_data *ccu) of_clk_del_provider(ccu->node); /* safe if never added */ ccu_clks_teardown(ccu); - list_del(&ccu->links); of_node_put(ccu->node); ccu->node = NULL; iounmap(ccu->base); @@ -847,7 +844,6 @@ void __init kona_dt_ccu_setup(struct ccu_data *ccu, goto out_err; } ccu->node = of_node_get(node); - list_add_tail(&ccu->links, &ccu_list); /* * Set up each defined kona clock and save the result in diff --git a/drivers/clk/bcm/clk-kona.c b/drivers/clk/bcm/clk-kona.c index a0ef4f75d457..79a98506c433 100644 --- a/drivers/clk/bcm/clk-kona.c +++ b/drivers/clk/bcm/clk-kona.c @@ -1240,7 +1240,7 @@ static bool __kona_clk_init(struct kona_clk *bcm_clk) default: BUG(); } - return -EINVAL; + return false; } /* Set a CCU and all its clocks into their desired initial state */ diff --git a/drivers/clk/bcm/clk-kona.h b/drivers/clk/bcm/clk-kona.h index 6849a64baf6d..906576ec97b6 100644 --- a/drivers/clk/bcm/clk-kona.h +++ b/drivers/clk/bcm/clk-kona.h @@ -480,7 +480,6 @@ struct ccu_data { spinlock_t lock; /* serialization lock */ bool write_enabled; /* write access is currently enabled */ struct ccu_policy policy; - struct list_head links; /* for ccu_list */ struct device_node *node; struct clk_onecell_data clk_data; const char *name; @@ -492,7 +491,6 @@ struct ccu_data { #define KONA_CCU_COMMON(_prefix, _name, _ccuname) \ .name = #_name "_ccu", \ .lock = __SPIN_LOCK_UNLOCKED(_name ## _ccu_data.lock), \ - .links = LIST_HEAD_INIT(_name ## _ccu_data.links), \ .clk_data = { \ .clk_num = _prefix ## _ ## _ccuname ## _CCU_CLOCK_COUNT, \ } diff --git a/drivers/clk/berlin/berlin2-pll.c b/drivers/clk/berlin/berlin2-pll.c index bdc506b03824..f4b8d324b083 100644 --- a/drivers/clk/berlin/berlin2-pll.c +++ b/drivers/clk/berlin/berlin2-pll.c @@ -25,14 +25,7 @@ #include <asm/div64.h> #include "berlin2-div.h" - -struct berlin2_pll_map { - const u8 vcodiv[16]; - u8 mult; - u8 fbdiv_shift; - u8 rfdiv_shift; - u8 divsel_shift; -}; +#include "berlin2-pll.h" struct berlin2_pll { struct clk_hw hw; diff --git a/drivers/clk/berlin/bg2.c b/drivers/clk/berlin/bg2.c index 515fb133495c..73153fc45ee9 100644 --- a/drivers/clk/berlin/bg2.c +++ b/drivers/clk/berlin/bg2.c @@ -502,12 +502,13 @@ static const struct berlin2_gate_data bg2_gates[] __initconst = { static void __init berlin2_clock_setup(struct device_node *np) { + struct device_node *parent_np = of_get_parent(np); const char *parent_names[9]; struct clk *clk; u8 avpll_flags = 0; int n; - gbase = of_iomap(np, 0); + gbase = of_iomap(parent_np, 0); if (!gbase) return; @@ -685,7 +686,5 @@ static void __init berlin2_clock_setup(struct device_node *np) bg2_fail: iounmap(gbase); } -CLK_OF_DECLARE(berlin2_clock, "marvell,berlin2-chip-ctrl", - berlin2_clock_setup); -CLK_OF_DECLARE(berlin2cd_clock, "marvell,berlin2cd-chip-ctrl", +CLK_OF_DECLARE(berlin2_clk, "marvell,berlin2-clk", berlin2_clock_setup); diff --git a/drivers/clk/berlin/bg2q.c b/drivers/clk/berlin/bg2q.c index 440ef81ab15c..221f40c2b850 100644 --- a/drivers/clk/berlin/bg2q.c +++ b/drivers/clk/berlin/bg2q.c @@ -290,18 +290,19 @@ static const struct berlin2_gate_data bg2q_gates[] __initconst = { static void __init berlin2q_clock_setup(struct device_node *np) { + struct device_node *parent_np = of_get_parent(np); const char *parent_names[9]; struct clk *clk; int n; - gbase = of_iomap(np, 0); + gbase = of_iomap(parent_np, 0); if (!gbase) { pr_err("%s: Unable to map global base\n", np->full_name); return; } /* BG2Q CPU PLL is not part of global registers */ - cpupll_base = of_iomap(np, 1); + cpupll_base = of_iomap(parent_np, 1); if (!cpupll_base) { pr_err("%s: Unable to map cpupll base\n", np->full_name); iounmap(gbase); @@ -384,5 +385,5 @@ bg2q_fail: iounmap(cpupll_base); iounmap(gbase); } -CLK_OF_DECLARE(berlin2q_clock, "marvell,berlin2q-chip-ctrl", +CLK_OF_DECLARE(berlin2q_clk, "marvell,berlin2q-clk", berlin2q_clock_setup); diff --git a/drivers/clk/clk-asm9260.c b/drivers/clk/clk-asm9260.c index 88f4ff6916fe..90897af8d9f7 100644 --- a/drivers/clk/clk-asm9260.c +++ b/drivers/clk/clk-asm9260.c @@ -274,7 +274,7 @@ static void __init asm9260_acc_init(struct device_node *np) u32 accuracy = 0; base = of_io_request_and_map(np, 0, np->name); - if (!base) + if (IS_ERR(base)) panic("%s: unable to map resource", np->name); /* register pll */ diff --git a/drivers/clk/clk-axm5516.c b/drivers/clk/clk-axm5516.c index 0f6368ceec4c..c7c91a5ecf8b 100644 --- a/drivers/clk/clk-axm5516.c +++ b/drivers/clk/clk-axm5516.c @@ -556,7 +556,7 @@ static int axmclk_probe(struct platform_device *pdev) return PTR_ERR(regmap); num_clks = ARRAY_SIZE(axmclk_clocks); - pr_info("axmclk: supporting %u clocks\n", num_clks); + pr_info("axmclk: supporting %zu clocks\n", num_clks); priv = devm_kzalloc(dev, sizeof(*priv) + sizeof(*priv->clks) * num_clks, GFP_KERNEL); if (!priv) diff --git a/drivers/clk/clk-cdce706.c b/drivers/clk/clk-cdce706.c index b8e4f8a822e9..f01164fada5d 100644 --- a/drivers/clk/clk-cdce706.c +++ b/drivers/clk/clk-cdce706.c @@ -94,7 +94,7 @@ static const char * const cdce706_source_name[] = { "clk_in0", "clk_in1", }; -static const char *cdce706_clkin_name[] = { +static const char * const cdce706_clkin_name[] = { "clk_in", }; @@ -102,7 +102,7 @@ static const char * const cdce706_pll_name[] = { "pll1", "pll2", "pll3", }; -static const char *cdce706_divider_parent_name[] = { +static const char * const cdce706_divider_parent_name[] = { "clk_in", "pll1", "pll2", "pll2", "pll3", }; @@ -666,6 +666,7 @@ static int cdce706_probe(struct i2c_client *client, static int cdce706_remove(struct i2c_client *client) { + of_clk_del_provider(client->dev.of_node); return 0; } diff --git a/drivers/clk/clk-cdce925.c b/drivers/clk/clk-cdce925.c new file mode 100644 index 000000000000..85fafb41e6ca --- /dev/null +++ b/drivers/clk/clk-cdce925.c @@ -0,0 +1,749 @@ +/* + * Driver for TI Dual PLL CDCE925 clock synthesizer + * + * This driver always connects the Y1 to the input clock, Y2/Y3 to PLL1 + * and Y4/Y5 to PLL2. PLL frequency is set on a first-come-first-serve + * basis. Clients can directly request any frequency that the chip can + * deliver using the standard clk framework. In addition, the device can + * be configured and activated via the devicetree. + * + * Copyright (C) 2014, Topic Embedded Products + * Licenced under GPL + */ +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <linux/gcd.h> + +/* The chip has 2 PLLs which can be routed through dividers to 5 outputs. + * Model this as 2 PLL clocks which are parents to the outputs. + */ +#define NUMBER_OF_PLLS 2 +#define NUMBER_OF_OUTPUTS 5 + +#define CDCE925_REG_GLOBAL1 0x01 +#define CDCE925_REG_Y1SPIPDIVH 0x02 +#define CDCE925_REG_PDIVL 0x03 +#define CDCE925_REG_XCSEL 0x05 +/* PLL parameters start at 0x10, steps of 0x10 */ +#define CDCE925_OFFSET_PLL 0x10 +/* Add CDCE925_OFFSET_PLL * (pll) to these registers before sending */ +#define CDCE925_PLL_MUX_OUTPUTS 0x14 +#define CDCE925_PLL_MULDIV 0x18 + +#define CDCE925_PLL_FREQUENCY_MIN 80000000ul +#define CDCE925_PLL_FREQUENCY_MAX 230000000ul +struct clk_cdce925_chip; + +struct clk_cdce925_output { + struct clk_hw hw; + struct clk_cdce925_chip *chip; + u8 index; + u16 pdiv; /* 1..127 for Y2-Y5; 1..1023 for Y1 */ +}; +#define to_clk_cdce925_output(_hw) \ + container_of(_hw, struct clk_cdce925_output, hw) + +struct clk_cdce925_pll { + struct clk_hw hw; + struct clk_cdce925_chip *chip; + u8 index; + u16 m; /* 1..511 */ + u16 n; /* 1..4095 */ +}; +#define to_clk_cdce925_pll(_hw) container_of(_hw, struct clk_cdce925_pll, hw) + +struct clk_cdce925_chip { + struct regmap *regmap; + struct i2c_client *i2c_client; + struct clk_cdce925_pll pll[NUMBER_OF_PLLS]; + struct clk_cdce925_output clk[NUMBER_OF_OUTPUTS]; + struct clk *dt_clk[NUMBER_OF_OUTPUTS]; + struct clk_onecell_data onecell; +}; + +/* ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** */ + +static unsigned long cdce925_pll_calculate_rate(unsigned long parent_rate, + u16 n, u16 m) +{ + if ((!m || !n) || (m == n)) + return parent_rate; /* In bypass mode runs at same frequency */ + return mult_frac(parent_rate, (unsigned long)n, (unsigned long)m); +} + +static unsigned long cdce925_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + /* Output frequency of PLL is Fout = (Fin/Pdiv)*(N/M) */ + struct clk_cdce925_pll *data = to_clk_cdce925_pll(hw); + + return cdce925_pll_calculate_rate(parent_rate, data->n, data->m); +} + +static void cdce925_pll_find_rate(unsigned long rate, + unsigned long parent_rate, u16 *n, u16 *m) +{ + unsigned long un; + unsigned long um; + unsigned long g; + + if (rate <= parent_rate) { + /* Can always deliver parent_rate in bypass mode */ + rate = parent_rate; + *n = 0; + *m = 0; + } else { + /* In PLL mode, need to apply min/max range */ + if (rate < CDCE925_PLL_FREQUENCY_MIN) + rate = CDCE925_PLL_FREQUENCY_MIN; + else if (rate > CDCE925_PLL_FREQUENCY_MAX) + rate = CDCE925_PLL_FREQUENCY_MAX; + + g = gcd(rate, parent_rate); + um = parent_rate / g; + un = rate / g; + /* When outside hw range, reduce to fit (rounding errors) */ + while ((un > 4095) || (um > 511)) { + un >>= 1; + um >>= 1; + } + if (un == 0) + un = 1; + if (um == 0) + um = 1; + + *n = un; + *m = um; + } +} + +static long cdce925_pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + u16 n, m; + + cdce925_pll_find_rate(rate, *parent_rate, &n, &m); + return (long)cdce925_pll_calculate_rate(*parent_rate, n, m); +} + +static int cdce925_pll_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_cdce925_pll *data = to_clk_cdce925_pll(hw); + + if (!rate || (rate == parent_rate)) { + data->m = 0; /* Bypass mode */ + data->n = 0; + return 0; + } + + if ((rate < CDCE925_PLL_FREQUENCY_MIN) || + (rate > CDCE925_PLL_FREQUENCY_MAX)) { + pr_debug("%s: rate %lu outside PLL range.\n", __func__, rate); + return -EINVAL; + } + + if (rate < parent_rate) { + pr_debug("%s: rate %lu less than parent rate %lu.\n", __func__, + rate, parent_rate); + return -EINVAL; + } + + cdce925_pll_find_rate(rate, parent_rate, &data->n, &data->m); + return 0; +} + + +/* calculate p = max(0, 4 - int(log2 (n/m))) */ +static u8 cdce925_pll_calc_p(u16 n, u16 m) +{ + u8 p; + u16 r = n / m; + + if (r >= 16) + return 0; + p = 4; + while (r > 1) { + r >>= 1; + --p; + } + return p; +} + +/* Returns VCO range bits for VCO1_0_RANGE */ +static u8 cdce925_pll_calc_range_bits(struct clk_hw *hw, u16 n, u16 m) +{ + struct clk *parent = clk_get_parent(hw->clk); + unsigned long rate = clk_get_rate(parent); + + rate = mult_frac(rate, (unsigned long)n, (unsigned long)m); + if (rate >= 175000000) + return 0x3; + if (rate >= 150000000) + return 0x02; + if (rate >= 125000000) + return 0x01; + return 0x00; +} + +/* I2C clock, hence everything must happen in (un)prepare because this + * may sleep */ +static int cdce925_pll_prepare(struct clk_hw *hw) +{ + struct clk_cdce925_pll *data = to_clk_cdce925_pll(hw); + u16 n = data->n; + u16 m = data->m; + u16 r; + u8 q; + u8 p; + u16 nn; + u8 pll[4]; /* Bits are spread out over 4 byte registers */ + u8 reg_ofs = data->index * CDCE925_OFFSET_PLL; + unsigned i; + + if ((!m || !n) || (m == n)) { + /* Set PLL mux to bypass mode, leave the rest as is */ + regmap_update_bits(data->chip->regmap, + reg_ofs + CDCE925_PLL_MUX_OUTPUTS, 0x80, 0x80); + } else { + /* According to data sheet: */ + /* p = max(0, 4 - int(log2 (n/m))) */ + p = cdce925_pll_calc_p(n, m); + /* nn = n * 2^p */ + nn = n * BIT(p); + /* q = int(nn/m) */ + q = nn / m; + if ((q < 16) || (1 > 64)) { + pr_debug("%s invalid q=%d\n", __func__, q); + return -EINVAL; + } + r = nn - (m*q); + if (r > 511) { + pr_debug("%s invalid r=%d\n", __func__, r); + return -EINVAL; + } + pr_debug("%s n=%d m=%d p=%d q=%d r=%d\n", __func__, + n, m, p, q, r); + /* encode into register bits */ + pll[0] = n >> 4; + pll[1] = ((n & 0x0F) << 4) | ((r >> 5) & 0x0F); + pll[2] = ((r & 0x1F) << 3) | ((q >> 3) & 0x07); + pll[3] = ((q & 0x07) << 5) | (p << 2) | + cdce925_pll_calc_range_bits(hw, n, m); + /* Write to registers */ + for (i = 0; i < ARRAY_SIZE(pll); ++i) + regmap_write(data->chip->regmap, + reg_ofs + CDCE925_PLL_MULDIV + i, pll[i]); + /* Enable PLL */ + regmap_update_bits(data->chip->regmap, + reg_ofs + CDCE925_PLL_MUX_OUTPUTS, 0x80, 0x00); + } + + return 0; +} + +static void cdce925_pll_unprepare(struct clk_hw *hw) +{ + struct clk_cdce925_pll *data = to_clk_cdce925_pll(hw); + u8 reg_ofs = data->index * CDCE925_OFFSET_PLL; + + regmap_update_bits(data->chip->regmap, + reg_ofs + CDCE925_PLL_MUX_OUTPUTS, 0x80, 0x80); +} + +static const struct clk_ops cdce925_pll_ops = { + .prepare = cdce925_pll_prepare, + .unprepare = cdce925_pll_unprepare, + .recalc_rate = cdce925_pll_recalc_rate, + .round_rate = cdce925_pll_round_rate, + .set_rate = cdce925_pll_set_rate, +}; + + +static void cdce925_clk_set_pdiv(struct clk_cdce925_output *data, u16 pdiv) +{ + switch (data->index) { + case 0: + regmap_update_bits(data->chip->regmap, + CDCE925_REG_Y1SPIPDIVH, + 0x03, (pdiv >> 8) & 0x03); + regmap_write(data->chip->regmap, 0x03, pdiv & 0xFF); + break; + case 1: + regmap_update_bits(data->chip->regmap, 0x16, 0x7F, pdiv); + break; + case 2: + regmap_update_bits(data->chip->regmap, 0x17, 0x7F, pdiv); + break; + case 3: + regmap_update_bits(data->chip->regmap, 0x26, 0x7F, pdiv); + break; + case 4: + regmap_update_bits(data->chip->regmap, 0x27, 0x7F, pdiv); + break; + } +} + +static void cdce925_clk_activate(struct clk_cdce925_output *data) +{ + switch (data->index) { + case 0: + regmap_update_bits(data->chip->regmap, + CDCE925_REG_Y1SPIPDIVH, 0x0c, 0x0c); + break; + case 1: + case 2: + regmap_update_bits(data->chip->regmap, 0x14, 0x03, 0x03); + break; + case 3: + case 4: + regmap_update_bits(data->chip->regmap, 0x24, 0x03, 0x03); + break; + } +} + +static int cdce925_clk_prepare(struct clk_hw *hw) +{ + struct clk_cdce925_output *data = to_clk_cdce925_output(hw); + + cdce925_clk_set_pdiv(data, data->pdiv); + cdce925_clk_activate(data); + return 0; +} + +static void cdce925_clk_unprepare(struct clk_hw *hw) +{ + struct clk_cdce925_output *data = to_clk_cdce925_output(hw); + + /* Disable clock by setting divider to "0" */ + cdce925_clk_set_pdiv(data, 0); +} + +static unsigned long cdce925_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_cdce925_output *data = to_clk_cdce925_output(hw); + + if (data->pdiv) + return parent_rate / data->pdiv; + return 0; +} + +static u16 cdce925_calc_divider(unsigned long rate, + unsigned long parent_rate) +{ + unsigned long divider; + + if (!rate) + return 0; + if (rate >= parent_rate) + return 1; + + divider = DIV_ROUND_CLOSEST(parent_rate, rate); + if (divider > 0x7F) + divider = 0x7F; + + return (u16)divider; +} + +static unsigned long cdce925_clk_best_parent_rate( + struct clk_hw *hw, unsigned long rate) +{ + struct clk *pll = clk_get_parent(hw->clk); + struct clk *root = clk_get_parent(pll); + unsigned long root_rate = clk_get_rate(root); + unsigned long best_rate_error = rate; + u16 pdiv_min; + u16 pdiv_max; + u16 pdiv_best; + u16 pdiv_now; + + if (root_rate % rate == 0) + return root_rate; /* Don't need the PLL, use bypass */ + + pdiv_min = (u16)max(1ul, DIV_ROUND_UP(CDCE925_PLL_FREQUENCY_MIN, rate)); + pdiv_max = (u16)min(127ul, CDCE925_PLL_FREQUENCY_MAX / rate); + + if (pdiv_min > pdiv_max) + return 0; /* No can do? */ + + pdiv_best = pdiv_min; + for (pdiv_now = pdiv_min; pdiv_now < pdiv_max; ++pdiv_now) { + unsigned long target_rate = rate * pdiv_now; + long pll_rate = clk_round_rate(pll, target_rate); + unsigned long actual_rate; + unsigned long rate_error; + + if (pll_rate <= 0) + continue; + actual_rate = pll_rate / pdiv_now; + rate_error = abs((long)actual_rate - (long)rate); + if (rate_error < best_rate_error) { + pdiv_best = pdiv_now; + best_rate_error = rate_error; + } + /* TODO: Consider PLL frequency based on smaller n/m values + * and pick the better one if the error is equal */ + } + + return rate * pdiv_best; +} + +static long cdce925_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + unsigned long l_parent_rate = *parent_rate; + u16 divider = cdce925_calc_divider(rate, l_parent_rate); + + if (l_parent_rate / divider != rate) { + l_parent_rate = cdce925_clk_best_parent_rate(hw, rate); + divider = cdce925_calc_divider(rate, l_parent_rate); + *parent_rate = l_parent_rate; + } + + if (divider) + return (long)(l_parent_rate / divider); + return 0; +} + +static int cdce925_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_cdce925_output *data = to_clk_cdce925_output(hw); + + data->pdiv = cdce925_calc_divider(rate, parent_rate); + + return 0; +} + +static const struct clk_ops cdce925_clk_ops = { + .prepare = cdce925_clk_prepare, + .unprepare = cdce925_clk_unprepare, + .recalc_rate = cdce925_clk_recalc_rate, + .round_rate = cdce925_clk_round_rate, + .set_rate = cdce925_clk_set_rate, +}; + + +static u16 cdce925_y1_calc_divider(unsigned long rate, + unsigned long parent_rate) +{ + unsigned long divider; + + if (!rate) + return 0; + if (rate >= parent_rate) + return 1; + + divider = DIV_ROUND_CLOSEST(parent_rate, rate); + if (divider > 0x3FF) /* Y1 has 10-bit divider */ + divider = 0x3FF; + + return (u16)divider; +} + +static long cdce925_clk_y1_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + unsigned long l_parent_rate = *parent_rate; + u16 divider = cdce925_y1_calc_divider(rate, l_parent_rate); + + if (divider) + return (long)(l_parent_rate / divider); + return 0; +} + +static int cdce925_clk_y1_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_cdce925_output *data = to_clk_cdce925_output(hw); + + data->pdiv = cdce925_y1_calc_divider(rate, parent_rate); + + return 0; +} + +static const struct clk_ops cdce925_clk_y1_ops = { + .prepare = cdce925_clk_prepare, + .unprepare = cdce925_clk_unprepare, + .recalc_rate = cdce925_clk_recalc_rate, + .round_rate = cdce925_clk_y1_round_rate, + .set_rate = cdce925_clk_y1_set_rate, +}; + + +static struct regmap_config cdce925_regmap_config = { + .name = "configuration0", + .reg_bits = 8, + .val_bits = 8, + .cache_type = REGCACHE_RBTREE, + .max_register = 0x2F, +}; + +#define CDCE925_I2C_COMMAND_BLOCK_TRANSFER 0x00 +#define CDCE925_I2C_COMMAND_BYTE_TRANSFER 0x80 + +static int cdce925_regmap_i2c_write( + void *context, const void *data, size_t count) +{ + struct device *dev = context; + struct i2c_client *i2c = to_i2c_client(dev); + int ret; + u8 reg_data[2]; + + if (count != 2) + return -ENOTSUPP; + + /* First byte is command code */ + reg_data[0] = CDCE925_I2C_COMMAND_BYTE_TRANSFER | ((u8 *)data)[0]; + reg_data[1] = ((u8 *)data)[1]; + + dev_dbg(&i2c->dev, "%s(%zu) %#x %#x\n", __func__, count, + reg_data[0], reg_data[1]); + + ret = i2c_master_send(i2c, reg_data, count); + if (likely(ret == count)) + return 0; + else if (ret < 0) + return ret; + else + return -EIO; +} + +static int cdce925_regmap_i2c_read(void *context, + const void *reg, size_t reg_size, void *val, size_t val_size) +{ + struct device *dev = context; + struct i2c_client *i2c = to_i2c_client(dev); + struct i2c_msg xfer[2]; + int ret; + u8 reg_data[2]; + + if (reg_size != 1) + return -ENOTSUPP; + + xfer[0].addr = i2c->addr; + xfer[0].flags = 0; + xfer[0].buf = reg_data; + if (val_size == 1) { + reg_data[0] = + CDCE925_I2C_COMMAND_BYTE_TRANSFER | ((u8 *)reg)[0]; + xfer[0].len = 1; + } else { + reg_data[0] = + CDCE925_I2C_COMMAND_BLOCK_TRANSFER | ((u8 *)reg)[0]; + reg_data[1] = val_size; + xfer[0].len = 2; + } + + xfer[1].addr = i2c->addr; + xfer[1].flags = I2C_M_RD; + xfer[1].len = val_size; + xfer[1].buf = val; + + ret = i2c_transfer(i2c->adapter, xfer, 2); + if (likely(ret == 2)) { + dev_dbg(&i2c->dev, "%s(%zu, %zu) %#x %#x\n", __func__, + reg_size, val_size, reg_data[0], *((u8 *)val)); + return 0; + } else if (ret < 0) + return ret; + else + return -EIO; +} + +/* The CDCE925 uses a funky way to read/write registers. Bulk mode is + * just weird, so just use the single byte mode exclusively. */ +static struct regmap_bus regmap_cdce925_bus = { + .write = cdce925_regmap_i2c_write, + .read = cdce925_regmap_i2c_read, +}; + +static int cdce925_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct clk_cdce925_chip *data; + struct device_node *node = client->dev.of_node; + const char *parent_name; + const char *pll_clk_name[NUMBER_OF_PLLS] = {NULL,}; + struct clk_init_data init; + struct clk *clk; + u32 value; + int i; + int err; + struct device_node *np_output; + char child_name[6]; + + dev_dbg(&client->dev, "%s\n", __func__); + data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->i2c_client = client; + data->regmap = devm_regmap_init(&client->dev, ®map_cdce925_bus, + &client->dev, &cdce925_regmap_config); + if (IS_ERR(data->regmap)) { + dev_err(&client->dev, "failed to allocate register map\n"); + return PTR_ERR(data->regmap); + } + i2c_set_clientdata(client, data); + + parent_name = of_clk_get_parent_name(node, 0); + if (!parent_name) { + dev_err(&client->dev, "missing parent clock\n"); + return -ENODEV; + } + dev_dbg(&client->dev, "parent is: %s\n", parent_name); + + if (of_property_read_u32(node, "xtal-load-pf", &value) == 0) + regmap_write(data->regmap, + CDCE925_REG_XCSEL, (value << 3) & 0xF8); + /* PWDN bit */ + regmap_update_bits(data->regmap, CDCE925_REG_GLOBAL1, BIT(4), 0); + + /* Set input source for Y1 to be the XTAL */ + regmap_update_bits(data->regmap, 0x02, BIT(7), 0); + + init.ops = &cdce925_pll_ops; + init.flags = 0; + init.parent_names = &parent_name; + init.num_parents = parent_name ? 1 : 0; + + /* Register PLL clocks */ + for (i = 0; i < NUMBER_OF_PLLS; ++i) { + pll_clk_name[i] = kasprintf(GFP_KERNEL, "%s.pll%d", + client->dev.of_node->name, i); + init.name = pll_clk_name[i]; + data->pll[i].chip = data; + data->pll[i].hw.init = &init; + data->pll[i].index = i; + clk = devm_clk_register(&client->dev, &data->pll[i].hw); + if (IS_ERR(clk)) { + dev_err(&client->dev, "Failed register PLL %d\n", i); + err = PTR_ERR(clk); + goto error; + } + sprintf(child_name, "PLL%d", i+1); + np_output = of_get_child_by_name(node, child_name); + if (!np_output) + continue; + if (!of_property_read_u32(np_output, + "clock-frequency", &value)) { + err = clk_set_rate(clk, value); + if (err) + dev_err(&client->dev, + "unable to set PLL frequency %ud\n", + value); + } + if (!of_property_read_u32(np_output, + "spread-spectrum", &value)) { + u8 flag = of_property_read_bool(np_output, + "spread-spectrum-center") ? 0x80 : 0x00; + regmap_update_bits(data->regmap, + 0x16 + (i*CDCE925_OFFSET_PLL), + 0x80, flag); + regmap_update_bits(data->regmap, + 0x12 + (i*CDCE925_OFFSET_PLL), + 0x07, value & 0x07); + } + } + + /* Register output clock Y1 */ + init.ops = &cdce925_clk_y1_ops; + init.flags = 0; + init.num_parents = 1; + init.parent_names = &parent_name; /* Mux Y1 to input */ + init.name = kasprintf(GFP_KERNEL, "%s.Y1", client->dev.of_node->name); + data->clk[0].chip = data; + data->clk[0].hw.init = &init; + data->clk[0].index = 0; + data->clk[0].pdiv = 1; + clk = devm_clk_register(&client->dev, &data->clk[0].hw); + kfree(init.name); /* clock framework made a copy of the name */ + if (IS_ERR(clk)) { + dev_err(&client->dev, "clock registration Y1 failed\n"); + err = PTR_ERR(clk); + goto error; + } + data->dt_clk[0] = clk; + + /* Register output clocks Y2 .. Y5*/ + init.ops = &cdce925_clk_ops; + init.flags = CLK_SET_RATE_PARENT; + init.num_parents = 1; + for (i = 1; i < NUMBER_OF_OUTPUTS; ++i) { + init.name = kasprintf(GFP_KERNEL, "%s.Y%d", + client->dev.of_node->name, i+1); + data->clk[i].chip = data; + data->clk[i].hw.init = &init; + data->clk[i].index = i; + data->clk[i].pdiv = 1; + switch (i) { + case 1: + case 2: + /* Mux Y2/3 to PLL1 */ + init.parent_names = &pll_clk_name[0]; + break; + case 3: + case 4: + /* Mux Y4/5 to PLL2 */ + init.parent_names = &pll_clk_name[1]; + break; + } + clk = devm_clk_register(&client->dev, &data->clk[i].hw); + kfree(init.name); /* clock framework made a copy of the name */ + if (IS_ERR(clk)) { + dev_err(&client->dev, "clock registration failed\n"); + err = PTR_ERR(clk); + goto error; + } + data->dt_clk[i] = clk; + } + + /* Register the output clocks */ + data->onecell.clk_num = NUMBER_OF_OUTPUTS; + data->onecell.clks = data->dt_clk; + err = of_clk_add_provider(client->dev.of_node, of_clk_src_onecell_get, + &data->onecell); + if (err) + dev_err(&client->dev, "unable to add OF clock provider\n"); + + err = 0; + +error: + for (i = 0; i < NUMBER_OF_PLLS; ++i) + /* clock framework made a copy of the name */ + kfree(pll_clk_name[i]); + + return err; +} + +static const struct i2c_device_id cdce925_id[] = { + { "cdce925", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, cdce925_id); + +static const struct of_device_id clk_cdce925_of_match[] = { + { .compatible = "ti,cdce925" }, + { }, +}; +MODULE_DEVICE_TABLE(of, clk_cdce925_of_match); + +static struct i2c_driver cdce925_driver = { + .driver = { + .name = "cdce925", + .of_match_table = of_match_ptr(clk_cdce925_of_match), + }, + .probe = cdce925_probe, + .id_table = cdce925_id, +}; +module_i2c_driver(cdce925_driver); + +MODULE_AUTHOR("Mike Looijmans <mike.looijmans@topic.nl>"); +MODULE_DESCRIPTION("cdce925 driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c index 956b7e54fa1c..616f5aef3c26 100644 --- a/drivers/clk/clk-composite.c +++ b/drivers/clk/clk-composite.c @@ -188,7 +188,7 @@ static void clk_composite_disable(struct clk_hw *hw) } struct clk *clk_register_composite(struct device *dev, const char *name, - const char **parent_names, int num_parents, + const char * const *parent_names, int num_parents, struct clk_hw *mux_hw, const struct clk_ops *mux_ops, struct clk_hw *rate_hw, const struct clk_ops *rate_ops, struct clk_hw *gate_hw, const struct clk_ops *gate_ops, @@ -200,10 +200,8 @@ struct clk *clk_register_composite(struct device *dev, const char *name, struct clk_ops *clk_composite_ops; composite = kzalloc(sizeof(*composite), GFP_KERNEL); - if (!composite) { - pr_err("%s: could not allocate composite clk\n", __func__); + if (!composite) return ERR_PTR(-ENOMEM); - } init.name = name; init.flags = flags | CLK_IS_BASIC; diff --git a/drivers/clk/clk-conf.c b/drivers/clk/clk-conf.c index 48a65b2b4027..43a218f35b19 100644 --- a/drivers/clk/clk-conf.c +++ b/drivers/clk/clk-conf.c @@ -106,8 +106,9 @@ static int __set_clk_rates(struct device_node *node, bool clk_supplier) rc = clk_set_rate(clk, rate); if (rc < 0) - pr_err("clk: couldn't set %s clock rate: %d\n", - __clk_get_name(clk), rc); + pr_err("clk: couldn't set %s clk rate to %d (%d), current rate: %ld\n", + __clk_get_name(clk), rate, rc, + clk_get_rate(clk)); clk_put(clk); } index++; @@ -124,7 +125,7 @@ static int __set_clk_rates(struct device_node *node, bool clk_supplier) * and sets any specified clock parents and rates. The @clk_supplier argument * should be set to true if @node may be also a clock supplier of any clock * listed in its 'assigned-clocks' or 'assigned-clock-parents' properties. - * If @clk_supplier is false the function exits returnning 0 as soon as it + * If @clk_supplier is false the function exits returning 0 as soon as it * determines the @node is also a supplier of any of the clocks. */ int of_clk_set_defaults(struct device_node *node, bool clk_supplier) diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c index 25006a8bb8e6..706b5783c360 100644 --- a/drivers/clk/clk-divider.c +++ b/drivers/clk/clk-divider.c @@ -430,11 +430,9 @@ static struct clk *_register_divider(struct device *dev, const char *name, } /* allocate the divider */ - div = kzalloc(sizeof(struct clk_divider), GFP_KERNEL); - if (!div) { - pr_err("%s: could not allocate divider clk\n", __func__); + div = kzalloc(sizeof(*div), GFP_KERNEL); + if (!div) return ERR_PTR(-ENOMEM); - } init.name = name; init.ops = &clk_divider_ops; diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c index d9e3f671c2ea..fccabe497f6e 100644 --- a/drivers/clk/clk-fixed-factor.c +++ b/drivers/clk/clk-fixed-factor.c @@ -55,10 +55,16 @@ static long clk_factor_round_rate(struct clk_hw *hw, unsigned long rate, static int clk_factor_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long parent_rate) { + /* + * We must report success but we can do so unconditionally because + * clk_factor_round_rate returns values that ensure this call is a + * nop. + */ + return 0; } -struct clk_ops clk_fixed_factor_ops = { +const struct clk_ops clk_fixed_factor_ops = { .round_rate = clk_factor_round_rate, .set_rate = clk_factor_set_rate, .recalc_rate = clk_factor_recalc_rate, @@ -74,10 +80,8 @@ struct clk *clk_register_fixed_factor(struct device *dev, const char *name, struct clk *clk; fix = kmalloc(sizeof(*fix), GFP_KERNEL); - if (!fix) { - pr_err("%s: could not allocate fixed factor clk\n", __func__); + if (!fix) return ERR_PTR(-ENOMEM); - } /* struct clk_fixed_factor assignments */ fix->mult = mult; diff --git a/drivers/clk/clk-fixed-rate.c b/drivers/clk/clk-fixed-rate.c index 0fc56ab6e844..f85ec8d1711f 100644 --- a/drivers/clk/clk-fixed-rate.c +++ b/drivers/clk/clk-fixed-rate.c @@ -65,11 +65,9 @@ struct clk *clk_register_fixed_rate_with_accuracy(struct device *dev, struct clk_init_data init; /* allocate fixed-rate clock */ - fixed = kzalloc(sizeof(struct clk_fixed_rate), GFP_KERNEL); - if (!fixed) { - pr_err("%s: could not allocate fixed clk\n", __func__); + fixed = kzalloc(sizeof(*fixed), GFP_KERNEL); + if (!fixed) return ERR_PTR(-ENOMEM); - } init.name = name; init.ops = &clk_fixed_rate_ops; diff --git a/drivers/clk/clk-fractional-divider.c b/drivers/clk/clk-fractional-divider.c index 6aa72d9d79ba..140eb5844dc4 100644 --- a/drivers/clk/clk-fractional-divider.c +++ b/drivers/clk/clk-fractional-divider.c @@ -109,10 +109,8 @@ struct clk *clk_register_fractional_divider(struct device *dev, struct clk *clk; fd = kzalloc(sizeof(*fd), GFP_KERNEL); - if (!fd) { - dev_err(dev, "could not allocate fractional divider clk\n"); + if (!fd) return ERR_PTR(-ENOMEM); - } init.name = name; init.ops = &clk_fractional_divider_ops; diff --git a/drivers/clk/clk-gate.c b/drivers/clk/clk-gate.c index 3f0e4200cb5d..551dd0672794 100644 --- a/drivers/clk/clk-gate.c +++ b/drivers/clk/clk-gate.c @@ -135,11 +135,9 @@ struct clk *clk_register_gate(struct device *dev, const char *name, } /* allocate the gate */ - gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL); - if (!gate) { - pr_err("%s: could not allocate gated clk\n", __func__); + gate = kzalloc(sizeof(*gate), GFP_KERNEL); + if (!gate) return ERR_PTR(-ENOMEM); - } init.name = name; init.ops = &clk_gate_ops; diff --git a/drivers/clk/clk-gpio-gate.c b/drivers/clk/clk-gpio-gate.c index a71cabedda93..f564e624fb93 100644 --- a/drivers/clk/clk-gpio-gate.c +++ b/drivers/clk/clk-gpio-gate.c @@ -189,7 +189,7 @@ static struct clk *of_clk_gpio_gate_delayed_register_get( /** * of_gpio_gate_clk_setup() - Setup function for gpio controlled clock */ -void __init of_gpio_gate_clk_setup(struct device_node *node) +static void __init of_gpio_gate_clk_setup(struct device_node *node) { struct clk_gpio_gate_delayed_register_data *data; @@ -203,6 +203,5 @@ void __init of_gpio_gate_clk_setup(struct device_node *node) of_clk_add_provider(node, of_clk_gpio_gate_delayed_register_get, data); } -EXPORT_SYMBOL_GPL(of_gpio_gate_clk_setup); CLK_OF_DECLARE(gpio_gate_clk, "gpio-gate-clock", of_gpio_gate_clk_setup); #endif diff --git a/drivers/clk/clk-ls1x.c b/drivers/clk/clk-ls1x.c index ca80103ac188..d4c61985f448 100644 --- a/drivers/clk/clk-ls1x.c +++ b/drivers/clk/clk-ls1x.c @@ -80,9 +80,9 @@ static struct clk *__init clk_register_pll(struct device *dev, return clk; } -static const char const *cpu_parents[] = { "cpu_clk_div", "osc_33m_clk", }; -static const char const *ahb_parents[] = { "ahb_clk_div", "osc_33m_clk", }; -static const char const *dc_parents[] = { "dc_clk_div", "osc_33m_clk", }; +static const char * const cpu_parents[] = { "cpu_clk_div", "osc_33m_clk", }; +static const char * const ahb_parents[] = { "ahb_clk_div", "osc_33m_clk", }; +static const char * const dc_parents[] = { "dc_clk_div", "osc_33m_clk", }; void __init ls1x_clk_init(void) { diff --git a/drivers/clk/clk-max-gen.c b/drivers/clk/clk-max-gen.c index 6505049d50f1..35af9cb6da4f 100644 --- a/drivers/clk/clk-max-gen.c +++ b/drivers/clk/clk-max-gen.c @@ -31,6 +31,8 @@ #include <linux/of.h> #include <linux/export.h> +#include "clk-max-gen.h" + struct max_gen_clk { struct regmap *regmap; u32 mask; diff --git a/drivers/clk/clk-max77686.c b/drivers/clk/clk-max77686.c index 86cdb3a28629..446c2fe76dc2 100644 --- a/drivers/clk/clk-max77686.c +++ b/drivers/clk/clk-max77686.c @@ -23,6 +23,7 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/err.h> +#include <linux/module.h> #include <linux/platform_device.h> #include <linux/mfd/max77686.h> #include <linux/mfd/max77686-private.h> diff --git a/drivers/clk/clk-max77802.c b/drivers/clk/clk-max77802.c index 0729dc723a8f..74c49b93a6eb 100644 --- a/drivers/clk/clk-max77802.c +++ b/drivers/clk/clk-max77802.c @@ -22,6 +22,7 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/err.h> +#include <linux/module.h> #include <linux/platform_device.h> #include <linux/mfd/max77686-private.h> #include <linux/clk-provider.h> diff --git a/drivers/clk/clk-moxart.c b/drivers/clk/clk-moxart.c index 30a3b6999e10..5181b89c3cb2 100644 --- a/drivers/clk/clk-moxart.c +++ b/drivers/clk/clk-moxart.c @@ -15,7 +15,7 @@ #include <linux/of_address.h> #include <linux/clkdev.h> -void __init moxart_of_pll_clk_init(struct device_node *node) +static void __init moxart_of_pll_clk_init(struct device_node *node) { static void __iomem *base; struct clk *clk, *ref_clk; @@ -53,7 +53,7 @@ void __init moxart_of_pll_clk_init(struct device_node *node) CLK_OF_DECLARE(moxart_pll_clock, "moxa,moxart-pll-clock", moxart_of_pll_clk_init); -void __init moxart_of_apb_clk_init(struct device_node *node) +static void __init moxart_of_apb_clk_init(struct device_node *node) { static void __iomem *base; struct clk *clk, *pll_clk; diff --git a/drivers/clk/clk-mux.c b/drivers/clk/clk-mux.c index 69a094c3783d..6066a01b20ea 100644 --- a/drivers/clk/clk-mux.c +++ b/drivers/clk/clk-mux.c @@ -114,7 +114,8 @@ const struct clk_ops clk_mux_ro_ops = { EXPORT_SYMBOL_GPL(clk_mux_ro_ops); struct clk *clk_register_mux_table(struct device *dev, const char *name, - const char **parent_names, u8 num_parents, unsigned long flags, + const char * const *parent_names, u8 num_parents, + unsigned long flags, void __iomem *reg, u8 shift, u32 mask, u8 clk_mux_flags, u32 *table, spinlock_t *lock) { @@ -166,7 +167,8 @@ struct clk *clk_register_mux_table(struct device *dev, const char *name, EXPORT_SYMBOL_GPL(clk_register_mux_table); struct clk *clk_register_mux(struct device *dev, const char *name, - const char **parent_names, u8 num_parents, unsigned long flags, + const char * const *parent_names, u8 num_parents, + unsigned long flags, void __iomem *reg, u8 shift, u8 width, u8 clk_mux_flags, spinlock_t *lock) { diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c index 05e04ce0f148..c9487179f25f 100644 --- a/drivers/clk/clk-nomadik.c +++ b/drivers/clk/clk-nomadik.c @@ -503,8 +503,7 @@ static int __init nomadik_src_clk_init_debugfs(void) NULL, NULL, &nomadik_src_clk_debugfs_ops); return 0; } - -module_init(nomadik_src_clk_init_debugfs); +device_initcall(nomadik_src_clk_init_debugfs); #endif diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c index bfa1e64e267d..9b13a303d3f8 100644 --- a/drivers/clk/clk-s2mps11.c +++ b/drivers/clk/clk-s2mps11.c @@ -242,14 +242,12 @@ static int s2mps11_clk_probe(struct platform_device *pdev) goto err_reg; } - s2mps11_clk->lookup = clkdev_alloc(s2mps11_clk->clk, + s2mps11_clk->lookup = clkdev_create(s2mps11_clk->clk, s2mps11_name(s2mps11_clk), NULL); if (!s2mps11_clk->lookup) { ret = -ENOMEM; goto err_lup; } - - clkdev_add(s2mps11_clk->lookup); } for (i = 0; i < S2MPS11_CLKS_NUM; i++) { diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c index 44ea107cfc67..e39e1e680b3c 100644 --- a/drivers/clk/clk-si5351.c +++ b/drivers/clk/clk-si5351.c @@ -552,7 +552,8 @@ static const struct clk_ops si5351_pll_ops = { * MSx_P2[19:0] = 128 * b - c * floor(128 * b/c) = (128*b) mod c * MSx_P3[19:0] = c * - * MS[6,7] are integer (P1) divide only, P2 = 0, P3 = 0 + * MS[6,7] are integer (P1) divide only, P1 = divide value, + * P2 and P3 are not applicable * * for 150MHz < fOUT <= 160MHz: * @@ -606,9 +607,6 @@ static unsigned long si5351_msynth_recalc_rate(struct clk_hw *hw, if (!hwdata->params.valid) si5351_read_parameters(hwdata->drvdata, reg, &hwdata->params); - if (hwdata->params.p3 == 0) - return parent_rate; - /* * multisync0-5: fOUT = (128 * P3 * fIN) / (P1*P3 + P2 + 512*P3) * multisync6-7: fOUT = fIN / P1 @@ -616,6 +614,8 @@ static unsigned long si5351_msynth_recalc_rate(struct clk_hw *hw, rate = parent_rate; if (hwdata->num > 5) { m = hwdata->params.p1; + } else if (hwdata->params.p3 == 0) { + return parent_rate; } else if ((si5351_reg_read(hwdata->drvdata, reg + 2) & SI5351_OUTPUT_CLK_DIVBY4) == SI5351_OUTPUT_CLK_DIVBY4) { m = 4; @@ -679,6 +679,16 @@ static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, c = 1; *parent_rate = a * rate; + } else if (hwdata->num >= 6) { + /* determine the closest integer divider */ + a = DIV_ROUND_CLOSEST(*parent_rate, rate); + if (a < SI5351_MULTISYNTH_A_MIN) + a = SI5351_MULTISYNTH_A_MIN; + if (a > SI5351_MULTISYNTH67_A_MAX) + a = SI5351_MULTISYNTH67_A_MAX; + + b = 0; + c = 1; } else { unsigned long rfrac, denom; @@ -692,9 +702,7 @@ static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, a = *parent_rate / rate; if (a < SI5351_MULTISYNTH_A_MIN) a = SI5351_MULTISYNTH_A_MIN; - if (hwdata->num >= 6 && a > SI5351_MULTISYNTH67_A_MAX) - a = SI5351_MULTISYNTH67_A_MAX; - else if (a > SI5351_MULTISYNTH_A_MAX) + if (a > SI5351_MULTISYNTH_A_MAX) a = SI5351_MULTISYNTH_A_MAX; /* find best approximation for b/c = fVCO mod fOUT */ @@ -723,6 +731,10 @@ static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, hwdata->params.p3 = 1; hwdata->params.p2 = 0; hwdata->params.p1 = 0; + } else if (hwdata->num >= 6) { + hwdata->params.p3 = 0; + hwdata->params.p2 = 0; + hwdata->params.p1 = a; } else { hwdata->params.p3 = c; hwdata->params.p2 = (128 * b) % c; @@ -1128,13 +1140,6 @@ static int si5351_dt_parse(struct i2c_client *client, if (!pdata) return -ENOMEM; - pdata->clk_xtal = of_clk_get(np, 0); - if (!IS_ERR(pdata->clk_xtal)) - clk_put(pdata->clk_xtal); - pdata->clk_clkin = of_clk_get(np, 1); - if (!IS_ERR(pdata->clk_clkin)) - clk_put(pdata->clk_clkin); - /* * property silabs,pll-source : <num src>, [<..>] * allow to selectively set pll source @@ -1328,8 +1333,22 @@ static int si5351_i2c_probe(struct i2c_client *client, i2c_set_clientdata(client, drvdata); drvdata->client = client; drvdata->variant = variant; - drvdata->pxtal = pdata->clk_xtal; - drvdata->pclkin = pdata->clk_clkin; + drvdata->pxtal = devm_clk_get(&client->dev, "xtal"); + drvdata->pclkin = devm_clk_get(&client->dev, "clkin"); + + if (PTR_ERR(drvdata->pxtal) == -EPROBE_DEFER || + PTR_ERR(drvdata->pclkin) == -EPROBE_DEFER) + return -EPROBE_DEFER; + + /* + * Check for valid parent clock: VARIANT_A and VARIANT_B need XTAL, + * VARIANT_C can have CLKIN instead. + */ + if (IS_ERR(drvdata->pxtal) && + (drvdata->variant != SI5351_VARIANT_C || IS_ERR(drvdata->pclkin))) { + dev_err(&client->dev, "missing parent clock\n"); + return -EINVAL; + } drvdata->regmap = devm_regmap_init_i2c(client, &si5351_regmap_config); if (IS_ERR(drvdata->regmap)) { @@ -1393,6 +1412,11 @@ static int si5351_i2c_probe(struct i2c_client *client, } } + if (!IS_ERR(drvdata->pxtal)) + clk_prepare_enable(drvdata->pxtal); + if (!IS_ERR(drvdata->pclkin)) + clk_prepare_enable(drvdata->pclkin); + /* register xtal input clock gate */ memset(&init, 0, sizeof(init)); init.name = si5351_input_names[0]; @@ -1407,7 +1431,8 @@ static int si5351_i2c_probe(struct i2c_client *client, clk = devm_clk_register(&client->dev, &drvdata->xtal); if (IS_ERR(clk)) { dev_err(&client->dev, "unable to register %s\n", init.name); - return PTR_ERR(clk); + ret = PTR_ERR(clk); + goto err_clk; } /* register clkin input clock gate */ @@ -1425,7 +1450,8 @@ static int si5351_i2c_probe(struct i2c_client *client, if (IS_ERR(clk)) { dev_err(&client->dev, "unable to register %s\n", init.name); - return PTR_ERR(clk); + ret = PTR_ERR(clk); + goto err_clk; } } @@ -1447,7 +1473,8 @@ static int si5351_i2c_probe(struct i2c_client *client, clk = devm_clk_register(&client->dev, &drvdata->pll[0].hw); if (IS_ERR(clk)) { dev_err(&client->dev, "unable to register %s\n", init.name); - return -EINVAL; + ret = PTR_ERR(clk); + goto err_clk; } /* register PLLB or VXCO (Si5351B) */ @@ -1471,7 +1498,8 @@ static int si5351_i2c_probe(struct i2c_client *client, clk = devm_clk_register(&client->dev, &drvdata->pll[1].hw); if (IS_ERR(clk)) { dev_err(&client->dev, "unable to register %s\n", init.name); - return -EINVAL; + ret = PTR_ERR(clk); + goto err_clk; } /* register clk multisync and clk out divider */ @@ -1492,8 +1520,10 @@ static int si5351_i2c_probe(struct i2c_client *client, num_clocks * sizeof(*drvdata->onecell.clks), GFP_KERNEL); if (WARN_ON(!drvdata->msynth || !drvdata->clkout || - !drvdata->onecell.clks)) - return -ENOMEM; + !drvdata->onecell.clks)) { + ret = -ENOMEM; + goto err_clk; + } for (n = 0; n < num_clocks; n++) { drvdata->msynth[n].num = n; @@ -1511,7 +1541,8 @@ static int si5351_i2c_probe(struct i2c_client *client, if (IS_ERR(clk)) { dev_err(&client->dev, "unable to register %s\n", init.name); - return -EINVAL; + ret = PTR_ERR(clk); + goto err_clk; } } @@ -1538,7 +1569,8 @@ static int si5351_i2c_probe(struct i2c_client *client, if (IS_ERR(clk)) { dev_err(&client->dev, "unable to register %s\n", init.name); - return -EINVAL; + ret = PTR_ERR(clk); + goto err_clk; } drvdata->onecell.clks[n] = clk; @@ -1557,10 +1589,17 @@ static int si5351_i2c_probe(struct i2c_client *client, &drvdata->onecell); if (ret) { dev_err(&client->dev, "unable to add clk provider\n"); - return ret; + goto err_clk; } return 0; + +err_clk: + if (!IS_ERR(drvdata->pxtal)) + clk_disable_unprepare(drvdata->pxtal); + if (!IS_ERR(drvdata->pclkin)) + clk_disable_unprepare(drvdata->pclkin); + return ret; } static const struct i2c_device_id si5351_i2c_ids[] = { diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c new file mode 100644 index 000000000000..b9b12a742970 --- /dev/null +++ b/drivers/clk/clk-stm32f4.c @@ -0,0 +1,380 @@ +/* + * Author: Daniel Thompson <daniel.thompson@linaro.org> + * + * Inspired by clk-asm9260.c . + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/clk-provider.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/of.h> +#include <linux/of_address.h> + +#define STM32F4_RCC_PLLCFGR 0x04 +#define STM32F4_RCC_CFGR 0x08 +#define STM32F4_RCC_AHB1ENR 0x30 +#define STM32F4_RCC_AHB2ENR 0x34 +#define STM32F4_RCC_AHB3ENR 0x38 +#define STM32F4_RCC_APB1ENR 0x40 +#define STM32F4_RCC_APB2ENR 0x44 + +struct stm32f4_gate_data { + u8 offset; + u8 bit_idx; + const char *name; + const char *parent_name; + unsigned long flags; +}; + +static const struct stm32f4_gate_data stm32f4_gates[] __initconst = { + { STM32F4_RCC_AHB1ENR, 0, "gpioa", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 1, "gpiob", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 2, "gpioc", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 3, "gpiod", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 4, "gpioe", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 5, "gpiof", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 6, "gpiog", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 7, "gpioh", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 8, "gpioi", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 9, "gpioj", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 10, "gpiok", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 12, "crc", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 18, "bkpsra", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 20, "ccmdatam", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 21, "dma1", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 22, "dma2", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 23, "dma2d", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 25, "ethmac", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 26, "ethmactx", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 27, "ethmacrx", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 28, "ethmacptp", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 29, "otghs", "ahb_div" }, + { STM32F4_RCC_AHB1ENR, 30, "otghsulpi", "ahb_div" }, + + { STM32F4_RCC_AHB2ENR, 0, "dcmi", "ahb_div" }, + { STM32F4_RCC_AHB2ENR, 4, "cryp", "ahb_div" }, + { STM32F4_RCC_AHB2ENR, 5, "hash", "ahb_div" }, + { STM32F4_RCC_AHB2ENR, 6, "rng", "pll48" }, + { STM32F4_RCC_AHB2ENR, 7, "otgfs", "pll48" }, + + { STM32F4_RCC_AHB3ENR, 0, "fmc", "ahb_div", + CLK_IGNORE_UNUSED }, + + { STM32F4_RCC_APB1ENR, 0, "tim2", "apb1_mul" }, + { STM32F4_RCC_APB1ENR, 1, "tim3", "apb1_mul" }, + { STM32F4_RCC_APB1ENR, 2, "tim4", "apb1_mul" }, + { STM32F4_RCC_APB1ENR, 3, "tim5", "apb1_mul" }, + { STM32F4_RCC_APB1ENR, 4, "tim6", "apb1_mul" }, + { STM32F4_RCC_APB1ENR, 5, "tim7", "apb1_mul" }, + { STM32F4_RCC_APB1ENR, 6, "tim12", "apb1_mul" }, + { STM32F4_RCC_APB1ENR, 7, "tim13", "apb1_mul" }, + { STM32F4_RCC_APB1ENR, 8, "tim14", "apb1_mul" }, + { STM32F4_RCC_APB1ENR, 11, "wwdg", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 14, "spi2", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 15, "spi3", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 17, "uart2", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 18, "uart3", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 19, "uart4", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 20, "uart5", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 21, "i2c1", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 22, "i2c2", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 23, "i2c3", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 25, "can1", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 26, "can2", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 28, "pwr", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 29, "dac", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 30, "uart7", "apb1_div" }, + { STM32F4_RCC_APB1ENR, 31, "uart8", "apb1_div" }, + + { STM32F4_RCC_APB2ENR, 0, "tim1", "apb2_mul" }, + { STM32F4_RCC_APB2ENR, 1, "tim8", "apb2_mul" }, + { STM32F4_RCC_APB2ENR, 4, "usart1", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 5, "usart6", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 8, "adc1", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 9, "adc2", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 10, "adc3", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 11, "sdio", "pll48" }, + { STM32F4_RCC_APB2ENR, 12, "spi1", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 13, "spi4", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 14, "syscfg", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 16, "tim9", "apb2_mul" }, + { STM32F4_RCC_APB2ENR, 17, "tim10", "apb2_mul" }, + { STM32F4_RCC_APB2ENR, 18, "tim11", "apb2_mul" }, + { STM32F4_RCC_APB2ENR, 20, "spi5", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 21, "spi6", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 22, "sai1", "apb2_div" }, + { STM32F4_RCC_APB2ENR, 26, "ltdc", "apb2_div" }, +}; + +/* + * MAX_CLKS is the maximum value in the enumeration below plus the combined + * hweight of stm32f42xx_gate_map (plus one). + */ +#define MAX_CLKS 74 + +enum { SYSTICK, FCLK }; + +/* + * This bitmask tells us which bit offsets (0..192) on STM32F4[23]xxx + * have gate bits associated with them. Its combined hweight is 71. + */ +static const u64 stm32f42xx_gate_map[] = { 0x000000f17ef417ffull, + 0x0000000000000001ull, + 0x04777f33f6fec9ffull }; + +static struct clk *clks[MAX_CLKS]; +static DEFINE_SPINLOCK(stm32f4_clk_lock); +static void __iomem *base; + +/* + * "Multiplier" device for APBx clocks. + * + * The APBx dividers are power-of-two dividers and, if *not* running in 1:1 + * mode, they also tap out the one of the low order state bits to run the + * timers. ST datasheets represent this feature as a (conditional) clock + * multiplier. + */ +struct clk_apb_mul { + struct clk_hw hw; + u8 bit_idx; +}; + +#define to_clk_apb_mul(_hw) container_of(_hw, struct clk_apb_mul, hw) + +static unsigned long clk_apb_mul_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_apb_mul *am = to_clk_apb_mul(hw); + + if (readl(base + STM32F4_RCC_CFGR) & BIT(am->bit_idx)) + return parent_rate * 2; + + return parent_rate; +} + +static long clk_apb_mul_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_apb_mul *am = to_clk_apb_mul(hw); + unsigned long mult = 1; + + if (readl(base + STM32F4_RCC_CFGR) & BIT(am->bit_idx)) + mult = 2; + + if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) { + unsigned long best_parent = rate / mult; + + *prate = + __clk_round_rate(__clk_get_parent(hw->clk), best_parent); + } + + return *prate * mult; +} + +static int clk_apb_mul_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + /* + * We must report success but we can do so unconditionally because + * clk_apb_mul_round_rate returns values that ensure this call is a + * nop. + */ + + return 0; +} + +static const struct clk_ops clk_apb_mul_factor_ops = { + .round_rate = clk_apb_mul_round_rate, + .set_rate = clk_apb_mul_set_rate, + .recalc_rate = clk_apb_mul_recalc_rate, +}; + +static struct clk *clk_register_apb_mul(struct device *dev, const char *name, + const char *parent_name, + unsigned long flags, u8 bit_idx) +{ + struct clk_apb_mul *am; + struct clk_init_data init; + struct clk *clk; + + am = kzalloc(sizeof(*am), GFP_KERNEL); + if (!am) + return ERR_PTR(-ENOMEM); + + am->bit_idx = bit_idx; + am->hw.init = &init; + + init.name = name; + init.ops = &clk_apb_mul_factor_ops; + init.flags = flags; + init.parent_names = &parent_name; + init.num_parents = 1; + + clk = clk_register(dev, &am->hw); + + if (IS_ERR(clk)) + kfree(am); + + return clk; +} + +/* + * Decode current PLL state and (statically) model the state we inherit from + * the bootloader. + */ +static void stm32f4_rcc_register_pll(const char *hse_clk, const char *hsi_clk) +{ + unsigned long pllcfgr = readl(base + STM32F4_RCC_PLLCFGR); + + unsigned long pllm = pllcfgr & 0x3f; + unsigned long plln = (pllcfgr >> 6) & 0x1ff; + unsigned long pllp = BIT(((pllcfgr >> 16) & 3) + 1); + const char *pllsrc = pllcfgr & BIT(22) ? hse_clk : hsi_clk; + unsigned long pllq = (pllcfgr >> 24) & 0xf; + + clk_register_fixed_factor(NULL, "vco", pllsrc, 0, plln, pllm); + clk_register_fixed_factor(NULL, "pll", "vco", 0, 1, pllp); + clk_register_fixed_factor(NULL, "pll48", "vco", 0, 1, pllq); +} + +/* + * Converts the primary and secondary indices (as they appear in DT) to an + * offset into our struct clock array. + */ +static int stm32f4_rcc_lookup_clk_idx(u8 primary, u8 secondary) +{ + u64 table[ARRAY_SIZE(stm32f42xx_gate_map)]; + + if (primary == 1) { + if (WARN_ON(secondary > FCLK)) + return -EINVAL; + return secondary; + } + + memcpy(table, stm32f42xx_gate_map, sizeof(table)); + + /* only bits set in table can be used as indices */ + if (WARN_ON(secondary > 8 * sizeof(table) || + 0 == (table[BIT_ULL_WORD(secondary)] & + BIT_ULL_MASK(secondary)))) + return -EINVAL; + + /* mask out bits above our current index */ + table[BIT_ULL_WORD(secondary)] &= + GENMASK_ULL(secondary % BITS_PER_LONG_LONG, 0); + + return FCLK + hweight64(table[0]) + + (BIT_ULL_WORD(secondary) >= 1 ? hweight64(table[1]) : 0) + + (BIT_ULL_WORD(secondary) >= 2 ? hweight64(table[2]) : 0); +} + +static struct clk * +stm32f4_rcc_lookup_clk(struct of_phandle_args *clkspec, void *data) +{ + int i = stm32f4_rcc_lookup_clk_idx(clkspec->args[0], clkspec->args[1]); + + if (i < 0) + return ERR_PTR(-EINVAL); + + return clks[i]; +} + +static const char *sys_parents[] __initdata = { "hsi", NULL, "pll" }; + +static const struct clk_div_table ahb_div_table[] = { + { 0x0, 1 }, { 0x1, 1 }, { 0x2, 1 }, { 0x3, 1 }, + { 0x4, 1 }, { 0x5, 1 }, { 0x6, 1 }, { 0x7, 1 }, + { 0x8, 2 }, { 0x9, 4 }, { 0xa, 8 }, { 0xb, 16 }, + { 0xc, 64 }, { 0xd, 128 }, { 0xe, 256 }, { 0xf, 512 }, + { 0 }, +}; + +static const struct clk_div_table apb_div_table[] = { + { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, + { 4, 2 }, { 5, 4 }, { 6, 8 }, { 7, 16 }, + { 0 }, +}; + +static void __init stm32f4_rcc_init(struct device_node *np) +{ + const char *hse_clk; + int n; + + base = of_iomap(np, 0); + if (!base) { + pr_err("%s: unable to map resource", np->name); + return; + } + + hse_clk = of_clk_get_parent_name(np, 0); + + clk_register_fixed_rate_with_accuracy(NULL, "hsi", NULL, 0, + 16000000, 160000); + stm32f4_rcc_register_pll(hse_clk, "hsi"); + + sys_parents[1] = hse_clk; + clk_register_mux_table( + NULL, "sys", sys_parents, ARRAY_SIZE(sys_parents), 0, + base + STM32F4_RCC_CFGR, 0, 3, 0, NULL, &stm32f4_clk_lock); + + clk_register_divider_table(NULL, "ahb_div", "sys", + CLK_SET_RATE_PARENT, base + STM32F4_RCC_CFGR, + 4, 4, 0, ahb_div_table, &stm32f4_clk_lock); + + clk_register_divider_table(NULL, "apb1_div", "ahb_div", + CLK_SET_RATE_PARENT, base + STM32F4_RCC_CFGR, + 10, 3, 0, apb_div_table, &stm32f4_clk_lock); + clk_register_apb_mul(NULL, "apb1_mul", "apb1_div", + CLK_SET_RATE_PARENT, 12); + + clk_register_divider_table(NULL, "apb2_div", "ahb_div", + CLK_SET_RATE_PARENT, base + STM32F4_RCC_CFGR, + 13, 3, 0, apb_div_table, &stm32f4_clk_lock); + clk_register_apb_mul(NULL, "apb2_mul", "apb2_div", + CLK_SET_RATE_PARENT, 15); + + clks[SYSTICK] = clk_register_fixed_factor(NULL, "systick", "ahb_div", + 0, 1, 8); + clks[FCLK] = clk_register_fixed_factor(NULL, "fclk", "ahb_div", + 0, 1, 1); + + for (n = 0; n < ARRAY_SIZE(stm32f4_gates); n++) { + const struct stm32f4_gate_data *gd = &stm32f4_gates[n]; + unsigned int secondary = + 8 * (gd->offset - STM32F4_RCC_AHB1ENR) + gd->bit_idx; + int idx = stm32f4_rcc_lookup_clk_idx(0, secondary); + + if (idx < 0) + goto fail; + + clks[idx] = clk_register_gate( + NULL, gd->name, gd->parent_name, gd->flags, + base + gd->offset, gd->bit_idx, 0, &stm32f4_clk_lock); + + if (IS_ERR(clks[n])) { + pr_err("%s: Unable to register leaf clock %s\n", + np->full_name, gd->name); + goto fail; + } + } + + of_clk_add_provider(np, stm32f4_rcc_lookup_clk, NULL); + return; +fail: + iounmap(base); +} +CLK_OF_DECLARE(stm32f4_rcc, "st,stm32f42xx-rcc", stm32f4_rcc_init); diff --git a/drivers/clk/clk-u300.c b/drivers/clk/clk-u300.c index 406bfc1375b2..18bf5e576b93 100644 --- a/drivers/clk/clk-u300.c +++ b/drivers/clk/clk-u300.c @@ -12,6 +12,7 @@ #include <linux/clk-provider.h> #include <linux/spinlock.h> #include <linux/of.h> +#include <linux/platform_data/clk-u300.h> /* APP side SYSCON registers */ /* CLK Control Register 16bit (R/W) */ diff --git a/drivers/clk/clk-xgene.c b/drivers/clk/clk-xgene.c index dd8a62d8f11f..f26b3ac36b27 100644 --- a/drivers/clk/clk-xgene.c +++ b/drivers/clk/clk-xgene.c @@ -42,12 +42,12 @@ static DEFINE_SPINLOCK(clk_lock); -static inline u32 xgene_clk_read(void *csr) +static inline u32 xgene_clk_read(void __iomem *csr) { return readl_relaxed(csr); } -static inline void xgene_clk_write(u32 data, void *csr) +static inline void xgene_clk_write(u32 data, void __iomem *csr) { return writel_relaxed(data, csr); } @@ -119,7 +119,7 @@ static unsigned long xgene_clk_pll_recalc_rate(struct clk_hw *hw, return fvco / nout; } -const struct clk_ops xgene_clk_pll_ops = { +static const struct clk_ops xgene_clk_pll_ops = { .is_enabled = xgene_clk_pll_is_enabled, .recalc_rate = xgene_clk_pll_recalc_rate, }; @@ -167,7 +167,7 @@ static void xgene_pllclk_init(struct device_node *np, enum xgene_pll_type pll_ty { const char *clk_name = np->full_name; struct clk *clk; - void *reg; + void __iomem *reg; reg = of_iomap(np, 0); if (reg == NULL) { @@ -222,20 +222,22 @@ static int xgene_clk_enable(struct clk_hw *hw) struct xgene_clk *pclk = to_xgene_clk(hw); unsigned long flags = 0; u32 data; + phys_addr_t reg; if (pclk->lock) spin_lock_irqsave(pclk->lock, flags); if (pclk->param.csr_reg != NULL) { pr_debug("%s clock enabled\n", pclk->name); + reg = __pa(pclk->param.csr_reg); /* First enable the clock */ data = xgene_clk_read(pclk->param.csr_reg + pclk->param.reg_clk_offset); data |= pclk->param.reg_clk_mask; xgene_clk_write(data, pclk->param.csr_reg + pclk->param.reg_clk_offset); - pr_debug("%s clock PADDR base 0x%016LX clk offset 0x%08X mask 0x%08X value 0x%08X\n", - pclk->name, __pa(pclk->param.csr_reg), + pr_debug("%s clock PADDR base %pa clk offset 0x%08X mask 0x%08X value 0x%08X\n", + pclk->name, ®, pclk->param.reg_clk_offset, pclk->param.reg_clk_mask, data); @@ -245,8 +247,8 @@ static int xgene_clk_enable(struct clk_hw *hw) data &= ~pclk->param.reg_csr_mask; xgene_clk_write(data, pclk->param.csr_reg + pclk->param.reg_csr_offset); - pr_debug("%s CSR RESET PADDR base 0x%016LX csr offset 0x%08X mask 0x%08X value 0x%08X\n", - pclk->name, __pa(pclk->param.csr_reg), + pr_debug("%s CSR RESET PADDR base %pa csr offset 0x%08X mask 0x%08X value 0x%08X\n", + pclk->name, ®, pclk->param.reg_csr_offset, pclk->param.reg_csr_mask, data); } @@ -386,7 +388,7 @@ static long xgene_clk_round_rate(struct clk_hw *hw, unsigned long rate, return parent_rate / divider; } -const struct clk_ops xgene_clk_ops = { +static const struct clk_ops xgene_clk_ops = { .enable = xgene_clk_enable, .disable = xgene_clk_disable, .is_enabled = xgene_clk_is_enabled, @@ -456,7 +458,7 @@ static void __init xgene_devclk_init(struct device_node *np) parameters.csr_reg = NULL; parameters.divider_reg = NULL; for (i = 0; i < 2; i++) { - void *map_res; + void __iomem *map_res; rc = of_address_to_resource(np, i, &res); if (rc != 0) { if (i == 0) { diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 459ce9da13e0..ddb4b541016f 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -21,6 +21,7 @@ #include <linux/device.h> #include <linux/init.h> #include <linux/sched.h> +#include <linux/clkdev.h> #include "clk.h" @@ -37,13 +38,6 @@ static HLIST_HEAD(clk_root_list); static HLIST_HEAD(clk_orphan_list); static LIST_HEAD(clk_notifier_list); -static long clk_core_get_accuracy(struct clk_core *clk); -static unsigned long clk_core_get_rate(struct clk_core *clk); -static int clk_core_get_phase(struct clk_core *clk); -static bool clk_core_is_prepared(struct clk_core *clk); -static bool clk_core_is_enabled(struct clk_core *clk); -static struct clk_core *clk_core_lookup(const char *name); - /*** private data structures ***/ struct clk_core { @@ -68,11 +62,11 @@ struct clk_core { int phase; struct hlist_head children; struct hlist_node child_node; - struct hlist_node debug_node; struct hlist_head clks; unsigned int notifier_count; #ifdef CONFIG_DEBUG_FS struct dentry *dentry; + struct hlist_node debug_node; #endif struct kref ref; }; @@ -145,382 +139,71 @@ static void clk_enable_unlock(unsigned long flags) spin_unlock_irqrestore(&enable_lock, flags); } -/*** debugfs support ***/ - -#ifdef CONFIG_DEBUG_FS -#include <linux/debugfs.h> - -static struct dentry *rootdir; -static int inited = 0; -static DEFINE_MUTEX(clk_debug_lock); -static HLIST_HEAD(clk_debug_list); - -static struct hlist_head *all_lists[] = { - &clk_root_list, - &clk_orphan_list, - NULL, -}; - -static struct hlist_head *orphan_list[] = { - &clk_orphan_list, - NULL, -}; - -static void clk_summary_show_one(struct seq_file *s, struct clk_core *c, - int level) -{ - if (!c) - return; - - seq_printf(s, "%*s%-*s %11d %12d %11lu %10lu %-3d\n", - level * 3 + 1, "", - 30 - level * 3, c->name, - c->enable_count, c->prepare_count, clk_core_get_rate(c), - clk_core_get_accuracy(c), clk_core_get_phase(c)); -} - -static void clk_summary_show_subtree(struct seq_file *s, struct clk_core *c, - int level) -{ - struct clk_core *child; - - if (!c) - return; - - clk_summary_show_one(s, c, level); - - hlist_for_each_entry(child, &c->children, child_node) - clk_summary_show_subtree(s, child, level + 1); -} - -static int clk_summary_show(struct seq_file *s, void *data) -{ - struct clk_core *c; - struct hlist_head **lists = (struct hlist_head **)s->private; - - seq_puts(s, " clock enable_cnt prepare_cnt rate accuracy phase\n"); - seq_puts(s, "----------------------------------------------------------------------------------------\n"); - - clk_prepare_lock(); - - for (; *lists; lists++) - hlist_for_each_entry(c, *lists, child_node) - clk_summary_show_subtree(s, c, 0); - - clk_prepare_unlock(); - - return 0; -} - - -static int clk_summary_open(struct inode *inode, struct file *file) -{ - return single_open(file, clk_summary_show, inode->i_private); -} - -static const struct file_operations clk_summary_fops = { - .open = clk_summary_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static void clk_dump_one(struct seq_file *s, struct clk_core *c, int level) -{ - if (!c) - return; - - seq_printf(s, "\"%s\": { ", c->name); - seq_printf(s, "\"enable_count\": %d,", c->enable_count); - seq_printf(s, "\"prepare_count\": %d,", c->prepare_count); - seq_printf(s, "\"rate\": %lu", clk_core_get_rate(c)); - seq_printf(s, "\"accuracy\": %lu", clk_core_get_accuracy(c)); - seq_printf(s, "\"phase\": %d", clk_core_get_phase(c)); -} - -static void clk_dump_subtree(struct seq_file *s, struct clk_core *c, int level) -{ - struct clk_core *child; - - if (!c) - return; - - clk_dump_one(s, c, level); - - hlist_for_each_entry(child, &c->children, child_node) { - seq_printf(s, ","); - clk_dump_subtree(s, child, level + 1); - } - - seq_printf(s, "}"); -} - -static int clk_dump(struct seq_file *s, void *data) +static bool clk_core_is_prepared(struct clk_core *core) { - struct clk_core *c; - bool first_node = true; - struct hlist_head **lists = (struct hlist_head **)s->private; - - seq_printf(s, "{"); - - clk_prepare_lock(); - - for (; *lists; lists++) { - hlist_for_each_entry(c, *lists, child_node) { - if (!first_node) - seq_puts(s, ","); - first_node = false; - clk_dump_subtree(s, c, 0); - } - } - - clk_prepare_unlock(); - - seq_printf(s, "}"); - return 0; -} - - -static int clk_dump_open(struct inode *inode, struct file *file) -{ - return single_open(file, clk_dump, inode->i_private); -} - -static const struct file_operations clk_dump_fops = { - .open = clk_dump_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int clk_debug_create_one(struct clk_core *clk, struct dentry *pdentry) -{ - struct dentry *d; - int ret = -ENOMEM; - - if (!clk || !pdentry) { - ret = -EINVAL; - goto out; - } - - d = debugfs_create_dir(clk->name, pdentry); - if (!d) - goto out; - - clk->dentry = d; - - d = debugfs_create_u32("clk_rate", S_IRUGO, clk->dentry, - (u32 *)&clk->rate); - if (!d) - goto err_out; - - d = debugfs_create_u32("clk_accuracy", S_IRUGO, clk->dentry, - (u32 *)&clk->accuracy); - if (!d) - goto err_out; - - d = debugfs_create_u32("clk_phase", S_IRUGO, clk->dentry, - (u32 *)&clk->phase); - if (!d) - goto err_out; - - d = debugfs_create_x32("clk_flags", S_IRUGO, clk->dentry, - (u32 *)&clk->flags); - if (!d) - goto err_out; - - d = debugfs_create_u32("clk_prepare_count", S_IRUGO, clk->dentry, - (u32 *)&clk->prepare_count); - if (!d) - goto err_out; - - d = debugfs_create_u32("clk_enable_count", S_IRUGO, clk->dentry, - (u32 *)&clk->enable_count); - if (!d) - goto err_out; - - d = debugfs_create_u32("clk_notifier_count", S_IRUGO, clk->dentry, - (u32 *)&clk->notifier_count); - if (!d) - goto err_out; - - if (clk->ops->debug_init) { - ret = clk->ops->debug_init(clk->hw, clk->dentry); - if (ret) - goto err_out; - } - - ret = 0; - goto out; + /* + * .is_prepared is optional for clocks that can prepare + * fall back to software usage counter if it is missing + */ + if (!core->ops->is_prepared) + return core->prepare_count; -err_out: - debugfs_remove_recursive(clk->dentry); - clk->dentry = NULL; -out: - return ret; + return core->ops->is_prepared(core->hw); } -/** - * clk_debug_register - add a clk node to the debugfs clk tree - * @clk: the clk being added to the debugfs clk tree - * - * Dynamically adds a clk to the debugfs clk tree if debugfs has been - * initialized. Otherwise it bails out early since the debugfs clk tree - * will be created lazily by clk_debug_init as part of a late_initcall. - */ -static int clk_debug_register(struct clk_core *clk) +static bool clk_core_is_enabled(struct clk_core *core) { - int ret = 0; - - mutex_lock(&clk_debug_lock); - hlist_add_head(&clk->debug_node, &clk_debug_list); - - if (!inited) - goto unlock; - - ret = clk_debug_create_one(clk, rootdir); -unlock: - mutex_unlock(&clk_debug_lock); - - return ret; -} + /* + * .is_enabled is only mandatory for clocks that gate + * fall back to software usage counter if .is_enabled is missing + */ + if (!core->ops->is_enabled) + return core->enable_count; - /** - * clk_debug_unregister - remove a clk node from the debugfs clk tree - * @clk: the clk being removed from the debugfs clk tree - * - * Dynamically removes a clk and all it's children clk nodes from the - * debugfs clk tree if clk->dentry points to debugfs created by - * clk_debug_register in __clk_init. - */ -static void clk_debug_unregister(struct clk_core *clk) -{ - mutex_lock(&clk_debug_lock); - hlist_del_init(&clk->debug_node); - debugfs_remove_recursive(clk->dentry); - clk->dentry = NULL; - mutex_unlock(&clk_debug_lock); + return core->ops->is_enabled(core->hw); } -struct dentry *clk_debugfs_add_file(struct clk_hw *hw, char *name, umode_t mode, - void *data, const struct file_operations *fops) -{ - struct dentry *d = NULL; - - if (hw->core->dentry) - d = debugfs_create_file(name, mode, hw->core->dentry, data, - fops); - - return d; -} -EXPORT_SYMBOL_GPL(clk_debugfs_add_file); - -/** - * clk_debug_init - lazily create the debugfs clk tree visualization - * - * clks are often initialized very early during boot before memory can - * be dynamically allocated and well before debugfs is setup. - * clk_debug_init walks the clk tree hierarchy while holding - * prepare_lock and creates the topology as part of a late_initcall, - * thus insuring that clks initialized very early will still be - * represented in the debugfs clk tree. This function should only be - * called once at boot-time, and all other clks added dynamically will - * be done so with clk_debug_register. - */ -static int __init clk_debug_init(void) -{ - struct clk_core *clk; - struct dentry *d; - - rootdir = debugfs_create_dir("clk", NULL); - - if (!rootdir) - return -ENOMEM; - - d = debugfs_create_file("clk_summary", S_IRUGO, rootdir, &all_lists, - &clk_summary_fops); - if (!d) - return -ENOMEM; - - d = debugfs_create_file("clk_dump", S_IRUGO, rootdir, &all_lists, - &clk_dump_fops); - if (!d) - return -ENOMEM; - - d = debugfs_create_file("clk_orphan_summary", S_IRUGO, rootdir, - &orphan_list, &clk_summary_fops); - if (!d) - return -ENOMEM; - - d = debugfs_create_file("clk_orphan_dump", S_IRUGO, rootdir, - &orphan_list, &clk_dump_fops); - if (!d) - return -ENOMEM; - - mutex_lock(&clk_debug_lock); - hlist_for_each_entry(clk, &clk_debug_list, debug_node) - clk_debug_create_one(clk, rootdir); - - inited = 1; - mutex_unlock(&clk_debug_lock); - - return 0; -} -late_initcall(clk_debug_init); -#else -static inline int clk_debug_register(struct clk_core *clk) { return 0; } -static inline void clk_debug_reparent(struct clk_core *clk, - struct clk_core *new_parent) -{ -} -static inline void clk_debug_unregister(struct clk_core *clk) -{ -} -#endif - -/* caller must hold prepare_lock */ -static void clk_unprepare_unused_subtree(struct clk_core *clk) +static void clk_unprepare_unused_subtree(struct clk_core *core) { struct clk_core *child; lockdep_assert_held(&prepare_lock); - hlist_for_each_entry(child, &clk->children, child_node) + hlist_for_each_entry(child, &core->children, child_node) clk_unprepare_unused_subtree(child); - if (clk->prepare_count) + if (core->prepare_count) return; - if (clk->flags & CLK_IGNORE_UNUSED) + if (core->flags & CLK_IGNORE_UNUSED) return; - if (clk_core_is_prepared(clk)) { - trace_clk_unprepare(clk); - if (clk->ops->unprepare_unused) - clk->ops->unprepare_unused(clk->hw); - else if (clk->ops->unprepare) - clk->ops->unprepare(clk->hw); - trace_clk_unprepare_complete(clk); + if (clk_core_is_prepared(core)) { + trace_clk_unprepare(core); + if (core->ops->unprepare_unused) + core->ops->unprepare_unused(core->hw); + else if (core->ops->unprepare) + core->ops->unprepare(core->hw); + trace_clk_unprepare_complete(core); } } -/* caller must hold prepare_lock */ -static void clk_disable_unused_subtree(struct clk_core *clk) +static void clk_disable_unused_subtree(struct clk_core *core) { struct clk_core *child; unsigned long flags; lockdep_assert_held(&prepare_lock); - hlist_for_each_entry(child, &clk->children, child_node) + hlist_for_each_entry(child, &core->children, child_node) clk_disable_unused_subtree(child); flags = clk_enable_lock(); - if (clk->enable_count) + if (core->enable_count) goto unlock_out; - if (clk->flags & CLK_IGNORE_UNUSED) + if (core->flags & CLK_IGNORE_UNUSED) goto unlock_out; /* @@ -528,13 +211,13 @@ static void clk_disable_unused_subtree(struct clk_core *clk) * sequence. call .disable_unused if available, otherwise fall * back to .disable */ - if (clk_core_is_enabled(clk)) { - trace_clk_disable(clk); - if (clk->ops->disable_unused) - clk->ops->disable_unused(clk->hw); - else if (clk->ops->disable) - clk->ops->disable(clk->hw); - trace_clk_disable_complete(clk); + if (clk_core_is_enabled(core)) { + trace_clk_disable(core); + if (core->ops->disable_unused) + core->ops->disable_unused(core->hw); + else if (core->ops->disable) + core->ops->disable(core->hw); + trace_clk_disable_complete(core); } unlock_out: @@ -551,7 +234,7 @@ __setup("clk_ignore_unused", clk_ignore_unused_setup); static int clk_disable_unused(void) { - struct clk_core *clk; + struct clk_core *core; if (clk_ignore_unused) { pr_warn("clk: Not disabling unused clocks\n"); @@ -560,17 +243,17 @@ static int clk_disable_unused(void) clk_prepare_lock(); - hlist_for_each_entry(clk, &clk_root_list, child_node) - clk_disable_unused_subtree(clk); + hlist_for_each_entry(core, &clk_root_list, child_node) + clk_disable_unused_subtree(core); - hlist_for_each_entry(clk, &clk_orphan_list, child_node) - clk_disable_unused_subtree(clk); + hlist_for_each_entry(core, &clk_orphan_list, child_node) + clk_disable_unused_subtree(core); - hlist_for_each_entry(clk, &clk_root_list, child_node) - clk_unprepare_unused_subtree(clk); + hlist_for_each_entry(core, &clk_root_list, child_node) + clk_unprepare_unused_subtree(core); - hlist_for_each_entry(clk, &clk_orphan_list, child_node) - clk_unprepare_unused_subtree(clk); + hlist_for_each_entry(core, &clk_orphan_list, child_node) + clk_unprepare_unused_subtree(core); clk_prepare_unlock(); @@ -608,18 +291,61 @@ struct clk *__clk_get_parent(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_get_parent); -static struct clk_core *clk_core_get_parent_by_index(struct clk_core *clk, +static struct clk_core *__clk_lookup_subtree(const char *name, + struct clk_core *core) +{ + struct clk_core *child; + struct clk_core *ret; + + if (!strcmp(core->name, name)) + return core; + + hlist_for_each_entry(child, &core->children, child_node) { + ret = __clk_lookup_subtree(name, child); + if (ret) + return ret; + } + + return NULL; +} + +static struct clk_core *clk_core_lookup(const char *name) +{ + struct clk_core *root_clk; + struct clk_core *ret; + + if (!name) + return NULL; + + /* search the 'proper' clk tree first */ + hlist_for_each_entry(root_clk, &clk_root_list, child_node) { + ret = __clk_lookup_subtree(name, root_clk); + if (ret) + return ret; + } + + /* if not found, then search the orphan tree */ + hlist_for_each_entry(root_clk, &clk_orphan_list, child_node) { + ret = __clk_lookup_subtree(name, root_clk); + if (ret) + return ret; + } + + return NULL; +} + +static struct clk_core *clk_core_get_parent_by_index(struct clk_core *core, u8 index) { - if (!clk || index >= clk->num_parents) + if (!core || index >= core->num_parents) return NULL; - else if (!clk->parents) - return clk_core_lookup(clk->parent_names[index]); - else if (!clk->parents[index]) - return clk->parents[index] = - clk_core_lookup(clk->parent_names[index]); + else if (!core->parents) + return clk_core_lookup(core->parent_names[index]); + else if (!core->parents[index]) + return core->parents[index] = + clk_core_lookup(core->parent_names[index]); else - return clk->parents[index]; + return core->parents[index]; } struct clk *clk_get_parent_by_index(struct clk *clk, u8 index) @@ -640,21 +366,21 @@ unsigned int __clk_get_enable_count(struct clk *clk) return !clk ? 0 : clk->core->enable_count; } -static unsigned long clk_core_get_rate_nolock(struct clk_core *clk) +static unsigned long clk_core_get_rate_nolock(struct clk_core *core) { unsigned long ret; - if (!clk) { + if (!core) { ret = 0; goto out; } - ret = clk->rate; + ret = core->rate; - if (clk->flags & CLK_IS_ROOT) + if (core->flags & CLK_IS_ROOT) goto out; - if (!clk->parent) + if (!core->parent) ret = 0; out: @@ -670,12 +396,12 @@ unsigned long __clk_get_rate(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_get_rate); -static unsigned long __clk_get_accuracy(struct clk_core *clk) +static unsigned long __clk_get_accuracy(struct clk_core *core) { - if (!clk) + if (!core) return 0; - return clk->accuracy; + return core->accuracy; } unsigned long __clk_get_flags(struct clk *clk) @@ -684,27 +410,6 @@ unsigned long __clk_get_flags(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_get_flags); -static bool clk_core_is_prepared(struct clk_core *clk) -{ - int ret; - - if (!clk) - return false; - - /* - * .is_prepared is optional for clocks that can prepare - * fall back to software usage counter if it is missing - */ - if (!clk->ops->is_prepared) { - ret = clk->prepare_count ? 1 : 0; - goto out; - } - - ret = clk->ops->is_prepared(clk->hw); -out: - return !!ret; -} - bool __clk_is_prepared(struct clk *clk) { if (!clk) @@ -713,27 +418,6 @@ bool __clk_is_prepared(struct clk *clk) return clk_core_is_prepared(clk->core); } -static bool clk_core_is_enabled(struct clk_core *clk) -{ - int ret; - - if (!clk) - return false; - - /* - * .is_enabled is only mandatory for clocks that gate - * fall back to software usage counter if .is_enabled is missing - */ - if (!clk->ops->is_enabled) { - ret = clk->enable_count ? 1 : 0; - goto out; - } - - ret = clk->ops->is_enabled(clk->hw); -out: - return !!ret; -} - bool __clk_is_enabled(struct clk *clk) { if (!clk) @@ -743,49 +427,6 @@ bool __clk_is_enabled(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_is_enabled); -static struct clk_core *__clk_lookup_subtree(const char *name, - struct clk_core *clk) -{ - struct clk_core *child; - struct clk_core *ret; - - if (!strcmp(clk->name, name)) - return clk; - - hlist_for_each_entry(child, &clk->children, child_node) { - ret = __clk_lookup_subtree(name, child); - if (ret) - return ret; - } - - return NULL; -} - -static struct clk_core *clk_core_lookup(const char *name) -{ - struct clk_core *root_clk; - struct clk_core *ret; - - if (!name) - return NULL; - - /* search the 'proper' clk tree first */ - hlist_for_each_entry(root_clk, &clk_root_list, child_node) { - ret = __clk_lookup_subtree(name, root_clk); - if (ret) - return ret; - } - - /* if not found, then search the orphan tree */ - hlist_for_each_entry(root_clk, &clk_orphan_list, child_node) { - ret = __clk_lookup_subtree(name, root_clk); - if (ret) - return ret; - } - - return NULL; -} - static bool mux_is_better_rate(unsigned long rate, unsigned long now, unsigned long best, unsigned long flags) { @@ -853,7 +494,7 @@ struct clk *__clk_lookup(const char *name) return !core ? NULL : core->hw->clk; } -static void clk_core_get_boundaries(struct clk_core *clk, +static void clk_core_get_boundaries(struct clk_core *core, unsigned long *min_rate, unsigned long *max_rate) { @@ -862,10 +503,10 @@ static void clk_core_get_boundaries(struct clk_core *clk, *min_rate = 0; *max_rate = ULONG_MAX; - hlist_for_each_entry(clk_user, &clk->clks, clks_node) + hlist_for_each_entry(clk_user, &core->clks, clks_node) *min_rate = max(*min_rate, clk_user->min_rate); - hlist_for_each_entry(clk_user, &clk->clks, clks_node) + hlist_for_each_entry(clk_user, &core->clks, clks_node) *max_rate = min(*max_rate, clk_user->max_rate); } @@ -901,26 +542,28 @@ EXPORT_SYMBOL_GPL(__clk_mux_determine_rate_closest); /*** clk api ***/ -static void clk_core_unprepare(struct clk_core *clk) +static void clk_core_unprepare(struct clk_core *core) { - if (!clk) + lockdep_assert_held(&prepare_lock); + + if (!core) return; - if (WARN_ON(clk->prepare_count == 0)) + if (WARN_ON(core->prepare_count == 0)) return; - if (--clk->prepare_count > 0) + if (--core->prepare_count > 0) return; - WARN_ON(clk->enable_count > 0); + WARN_ON(core->enable_count > 0); - trace_clk_unprepare(clk); + trace_clk_unprepare(core); - if (clk->ops->unprepare) - clk->ops->unprepare(clk->hw); + if (core->ops->unprepare) + core->ops->unprepare(core->hw); - trace_clk_unprepare_complete(clk); - clk_core_unprepare(clk->parent); + trace_clk_unprepare_complete(core); + clk_core_unprepare(core->parent); } /** @@ -945,32 +588,34 @@ void clk_unprepare(struct clk *clk) } EXPORT_SYMBOL_GPL(clk_unprepare); -static int clk_core_prepare(struct clk_core *clk) +static int clk_core_prepare(struct clk_core *core) { int ret = 0; - if (!clk) + lockdep_assert_held(&prepare_lock); + + if (!core) return 0; - if (clk->prepare_count == 0) { - ret = clk_core_prepare(clk->parent); + if (core->prepare_count == 0) { + ret = clk_core_prepare(core->parent); if (ret) return ret; - trace_clk_prepare(clk); + trace_clk_prepare(core); - if (clk->ops->prepare) - ret = clk->ops->prepare(clk->hw); + if (core->ops->prepare) + ret = core->ops->prepare(core->hw); - trace_clk_prepare_complete(clk); + trace_clk_prepare_complete(core); if (ret) { - clk_core_unprepare(clk->parent); + clk_core_unprepare(core->parent); return ret; } } - clk->prepare_count++; + core->prepare_count++; return 0; } @@ -1002,33 +647,27 @@ int clk_prepare(struct clk *clk) } EXPORT_SYMBOL_GPL(clk_prepare); -static void clk_core_disable(struct clk_core *clk) +static void clk_core_disable(struct clk_core *core) { - if (!clk) + lockdep_assert_held(&enable_lock); + + if (!core) return; - if (WARN_ON(clk->enable_count == 0)) + if (WARN_ON(core->enable_count == 0)) return; - if (--clk->enable_count > 0) + if (--core->enable_count > 0) return; - trace_clk_disable(clk); + trace_clk_disable(core); - if (clk->ops->disable) - clk->ops->disable(clk->hw); + if (core->ops->disable) + core->ops->disable(core->hw); - trace_clk_disable_complete(clk); + trace_clk_disable_complete(core); - clk_core_disable(clk->parent); -} - -static void __clk_disable(struct clk *clk) -{ - if (!clk) - return; - - clk_core_disable(clk->core); + clk_core_disable(core->parent); } /** @@ -1051,52 +690,46 @@ void clk_disable(struct clk *clk) return; flags = clk_enable_lock(); - __clk_disable(clk); + clk_core_disable(clk->core); clk_enable_unlock(flags); } EXPORT_SYMBOL_GPL(clk_disable); -static int clk_core_enable(struct clk_core *clk) +static int clk_core_enable(struct clk_core *core) { int ret = 0; - if (!clk) + lockdep_assert_held(&enable_lock); + + if (!core) return 0; - if (WARN_ON(clk->prepare_count == 0)) + if (WARN_ON(core->prepare_count == 0)) return -ESHUTDOWN; - if (clk->enable_count == 0) { - ret = clk_core_enable(clk->parent); + if (core->enable_count == 0) { + ret = clk_core_enable(core->parent); if (ret) return ret; - trace_clk_enable(clk); + trace_clk_enable(core); - if (clk->ops->enable) - ret = clk->ops->enable(clk->hw); + if (core->ops->enable) + ret = core->ops->enable(core->hw); - trace_clk_enable_complete(clk); + trace_clk_enable_complete(core); if (ret) { - clk_core_disable(clk->parent); + clk_core_disable(core->parent); return ret; } } - clk->enable_count++; + core->enable_count++; return 0; } -static int __clk_enable(struct clk *clk) -{ - if (!clk) - return 0; - - return clk_core_enable(clk->core); -} - /** * clk_enable - ungate a clock * @clk: the clk being ungated @@ -1115,15 +748,18 @@ int clk_enable(struct clk *clk) unsigned long flags; int ret; + if (!clk) + return 0; + flags = clk_enable_lock(); - ret = __clk_enable(clk); + ret = clk_core_enable(clk->core); clk_enable_unlock(flags); return ret; } EXPORT_SYMBOL_GPL(clk_enable); -static unsigned long clk_core_round_rate_nolock(struct clk_core *clk, +static unsigned long clk_core_round_rate_nolock(struct clk_core *core, unsigned long rate, unsigned long min_rate, unsigned long max_rate) @@ -1134,25 +770,25 @@ static unsigned long clk_core_round_rate_nolock(struct clk_core *clk, lockdep_assert_held(&prepare_lock); - if (!clk) + if (!core) return 0; - parent = clk->parent; + parent = core->parent; if (parent) parent_rate = parent->rate; - if (clk->ops->determine_rate) { + if (core->ops->determine_rate) { parent_hw = parent ? parent->hw : NULL; - return clk->ops->determine_rate(clk->hw, rate, + return core->ops->determine_rate(core->hw, rate, min_rate, max_rate, &parent_rate, &parent_hw); - } else if (clk->ops->round_rate) - return clk->ops->round_rate(clk->hw, rate, &parent_rate); - else if (clk->flags & CLK_SET_RATE_PARENT) - return clk_core_round_rate_nolock(clk->parent, rate, min_rate, + } else if (core->ops->round_rate) + return core->ops->round_rate(core->hw, rate, &parent_rate); + else if (core->flags & CLK_SET_RATE_PARENT) + return clk_core_round_rate_nolock(core->parent, rate, min_rate, max_rate); else - return clk->rate; + return core->rate; } /** @@ -1162,8 +798,7 @@ static unsigned long clk_core_round_rate_nolock(struct clk_core *clk, * @min_rate: returned rate must be greater than this rate * @max_rate: returned rate must be less than this rate * - * Caller must hold prepare_lock. Useful for clk_ops such as .set_rate and - * .determine_rate. + * Useful for clk_ops such as .set_rate and .determine_rate. */ unsigned long __clk_determine_rate(struct clk_hw *hw, unsigned long rate, @@ -1182,7 +817,7 @@ EXPORT_SYMBOL_GPL(__clk_determine_rate); * @clk: round the rate of this clock * @rate: the rate which is to be rounded * - * Caller must hold prepare_lock. Useful for clk_ops such as .set_rate + * Useful for clk_ops such as .set_rate */ unsigned long __clk_round_rate(struct clk *clk, unsigned long rate) { @@ -1224,7 +859,7 @@ EXPORT_SYMBOL_GPL(clk_round_rate); /** * __clk_notify - call clk notifier chain - * @clk: struct clk * that is changing rate + * @core: clk that is changing rate * @msg: clk notifier type (see include/linux/clk.h) * @old_rate: old clk rate * @new_rate: new clk rate @@ -1236,7 +871,7 @@ EXPORT_SYMBOL_GPL(clk_round_rate); * called if all went well, or NOTIFY_STOP or NOTIFY_BAD immediately if * a driver returns that. */ -static int __clk_notify(struct clk_core *clk, unsigned long msg, +static int __clk_notify(struct clk_core *core, unsigned long msg, unsigned long old_rate, unsigned long new_rate) { struct clk_notifier *cn; @@ -1247,7 +882,7 @@ static int __clk_notify(struct clk_core *clk, unsigned long msg, cnd.new_rate = new_rate; list_for_each_entry(cn, &clk_notifier_list, node) { - if (cn->clk->core == clk) { + if (cn->clk->core == core) { cnd.clk = cn->clk; ret = srcu_notifier_call_chain(&cn->notifier_head, msg, &cnd); @@ -1259,44 +894,42 @@ static int __clk_notify(struct clk_core *clk, unsigned long msg, /** * __clk_recalc_accuracies - * @clk: first clk in the subtree + * @core: first clk in the subtree * * Walks the subtree of clks starting with clk and recalculates accuracies as * it goes. Note that if a clk does not implement the .recalc_accuracy - * callback then it is assumed that the clock will take on the accuracy of it's + * callback then it is assumed that the clock will take on the accuracy of its * parent. - * - * Caller must hold prepare_lock. */ -static void __clk_recalc_accuracies(struct clk_core *clk) +static void __clk_recalc_accuracies(struct clk_core *core) { unsigned long parent_accuracy = 0; struct clk_core *child; lockdep_assert_held(&prepare_lock); - if (clk->parent) - parent_accuracy = clk->parent->accuracy; + if (core->parent) + parent_accuracy = core->parent->accuracy; - if (clk->ops->recalc_accuracy) - clk->accuracy = clk->ops->recalc_accuracy(clk->hw, + if (core->ops->recalc_accuracy) + core->accuracy = core->ops->recalc_accuracy(core->hw, parent_accuracy); else - clk->accuracy = parent_accuracy; + core->accuracy = parent_accuracy; - hlist_for_each_entry(child, &clk->children, child_node) + hlist_for_each_entry(child, &core->children, child_node) __clk_recalc_accuracies(child); } -static long clk_core_get_accuracy(struct clk_core *clk) +static long clk_core_get_accuracy(struct clk_core *core) { unsigned long accuracy; clk_prepare_lock(); - if (clk && (clk->flags & CLK_GET_ACCURACY_NOCACHE)) - __clk_recalc_accuracies(clk); + if (core && (core->flags & CLK_GET_ACCURACY_NOCACHE)) + __clk_recalc_accuracies(core); - accuracy = __clk_get_accuracy(clk); + accuracy = __clk_get_accuracy(core); clk_prepare_unlock(); return accuracy; @@ -1320,17 +953,17 @@ long clk_get_accuracy(struct clk *clk) } EXPORT_SYMBOL_GPL(clk_get_accuracy); -static unsigned long clk_recalc(struct clk_core *clk, +static unsigned long clk_recalc(struct clk_core *core, unsigned long parent_rate) { - if (clk->ops->recalc_rate) - return clk->ops->recalc_rate(clk->hw, parent_rate); + if (core->ops->recalc_rate) + return core->ops->recalc_rate(core->hw, parent_rate); return parent_rate; } /** * __clk_recalc_rates - * @clk: first clk in the subtree + * @core: first clk in the subtree * @msg: notification type (see include/linux/clk.h) * * Walks the subtree of clks starting with clk and recalculates rates as it @@ -1339,10 +972,8 @@ static unsigned long clk_recalc(struct clk_core *clk, * * clk_recalc_rates also propagates the POST_RATE_CHANGE notification, * if necessary. - * - * Caller must hold prepare_lock. */ -static void __clk_recalc_rates(struct clk_core *clk, unsigned long msg) +static void __clk_recalc_rates(struct clk_core *core, unsigned long msg) { unsigned long old_rate; unsigned long parent_rate = 0; @@ -1350,34 +981,34 @@ static void __clk_recalc_rates(struct clk_core *clk, unsigned long msg) lockdep_assert_held(&prepare_lock); - old_rate = clk->rate; + old_rate = core->rate; - if (clk->parent) - parent_rate = clk->parent->rate; + if (core->parent) + parent_rate = core->parent->rate; - clk->rate = clk_recalc(clk, parent_rate); + core->rate = clk_recalc(core, parent_rate); /* * ignore NOTIFY_STOP and NOTIFY_BAD return values for POST_RATE_CHANGE * & ABORT_RATE_CHANGE notifiers */ - if (clk->notifier_count && msg) - __clk_notify(clk, msg, old_rate, clk->rate); + if (core->notifier_count && msg) + __clk_notify(core, msg, old_rate, core->rate); - hlist_for_each_entry(child, &clk->children, child_node) + hlist_for_each_entry(child, &core->children, child_node) __clk_recalc_rates(child, msg); } -static unsigned long clk_core_get_rate(struct clk_core *clk) +static unsigned long clk_core_get_rate(struct clk_core *core) { unsigned long rate; clk_prepare_lock(); - if (clk && (clk->flags & CLK_GET_RATE_NOCACHE)) - __clk_recalc_rates(clk, 0); + if (core && (core->flags & CLK_GET_RATE_NOCACHE)) + __clk_recalc_rates(core, 0); - rate = clk_core_get_rate_nolock(clk); + rate = clk_core_get_rate_nolock(core); clk_prepare_unlock(); return rate; @@ -1400,15 +1031,15 @@ unsigned long clk_get_rate(struct clk *clk) } EXPORT_SYMBOL_GPL(clk_get_rate); -static int clk_fetch_parent_index(struct clk_core *clk, +static int clk_fetch_parent_index(struct clk_core *core, struct clk_core *parent) { int i; - if (!clk->parents) { - clk->parents = kcalloc(clk->num_parents, + if (!core->parents) { + core->parents = kcalloc(core->num_parents, sizeof(struct clk *), GFP_KERNEL); - if (!clk->parents) + if (!core->parents) return -ENOMEM; } @@ -1417,15 +1048,15 @@ static int clk_fetch_parent_index(struct clk_core *clk, * or if not yet cached, use string name comparison and cache * them now to avoid future calls to clk_core_lookup. */ - for (i = 0; i < clk->num_parents; i++) { - if (clk->parents[i] == parent) + for (i = 0; i < core->num_parents; i++) { + if (core->parents[i] == parent) return i; - if (clk->parents[i]) + if (core->parents[i]) continue; - if (!strcmp(clk->parent_names[i], parent->name)) { - clk->parents[i] = clk_core_lookup(parent->name); + if (!strcmp(core->parent_names[i], parent->name)) { + core->parents[i] = clk_core_lookup(parent->name); return i; } } @@ -1433,28 +1064,28 @@ static int clk_fetch_parent_index(struct clk_core *clk, return -EINVAL; } -static void clk_reparent(struct clk_core *clk, struct clk_core *new_parent) +static void clk_reparent(struct clk_core *core, struct clk_core *new_parent) { - hlist_del(&clk->child_node); + hlist_del(&core->child_node); if (new_parent) { /* avoid duplicate POST_RATE_CHANGE notifications */ - if (new_parent->new_child == clk) + if (new_parent->new_child == core) new_parent->new_child = NULL; - hlist_add_head(&clk->child_node, &new_parent->children); + hlist_add_head(&core->child_node, &new_parent->children); } else { - hlist_add_head(&clk->child_node, &clk_orphan_list); + hlist_add_head(&core->child_node, &clk_orphan_list); } - clk->parent = new_parent; + core->parent = new_parent; } -static struct clk_core *__clk_set_parent_before(struct clk_core *clk, +static struct clk_core *__clk_set_parent_before(struct clk_core *core, struct clk_core *parent) { unsigned long flags; - struct clk_core *old_parent = clk->parent; + struct clk_core *old_parent = core->parent; /* * Migrate prepare state between parents and prevent race with @@ -1473,15 +1104,17 @@ static struct clk_core *__clk_set_parent_before(struct clk_core *clk, * * See also: Comment for clk_set_parent() below. */ - if (clk->prepare_count) { + if (core->prepare_count) { clk_core_prepare(parent); + flags = clk_enable_lock(); clk_core_enable(parent); - clk_core_enable(clk); + clk_core_enable(core); + clk_enable_unlock(flags); } /* update the clk tree topology */ flags = clk_enable_lock(); - clk_reparent(clk, parent); + clk_reparent(core, parent); clk_enable_unlock(flags); return old_parent; @@ -1491,55 +1124,61 @@ static void __clk_set_parent_after(struct clk_core *core, struct clk_core *parent, struct clk_core *old_parent) { + unsigned long flags; + /* * Finish the migration of prepare state and undo the changes done * for preventing a race with clk_enable(). */ if (core->prepare_count) { + flags = clk_enable_lock(); clk_core_disable(core); clk_core_disable(old_parent); + clk_enable_unlock(flags); clk_core_unprepare(old_parent); } } -static int __clk_set_parent(struct clk_core *clk, struct clk_core *parent, +static int __clk_set_parent(struct clk_core *core, struct clk_core *parent, u8 p_index) { unsigned long flags; int ret = 0; struct clk_core *old_parent; - old_parent = __clk_set_parent_before(clk, parent); + old_parent = __clk_set_parent_before(core, parent); - trace_clk_set_parent(clk, parent); + trace_clk_set_parent(core, parent); /* change clock input source */ - if (parent && clk->ops->set_parent) - ret = clk->ops->set_parent(clk->hw, p_index); + if (parent && core->ops->set_parent) + ret = core->ops->set_parent(core->hw, p_index); - trace_clk_set_parent_complete(clk, parent); + trace_clk_set_parent_complete(core, parent); if (ret) { flags = clk_enable_lock(); - clk_reparent(clk, old_parent); + clk_reparent(core, old_parent); clk_enable_unlock(flags); - if (clk->prepare_count) { - clk_core_disable(clk); + if (core->prepare_count) { + flags = clk_enable_lock(); + clk_core_disable(core); clk_core_disable(parent); + clk_enable_unlock(flags); clk_core_unprepare(parent); } return ret; } - __clk_set_parent_after(clk, parent, old_parent); + __clk_set_parent_after(core, parent, old_parent); return 0; } /** * __clk_speculate_rates - * @clk: first clk in the subtree + * @core: first clk in the subtree * @parent_rate: the "future" rate of clk's parent * * Walks the subtree of clks starting with clk, speculating rates as it @@ -1550,10 +1189,8 @@ static int __clk_set_parent(struct clk_core *clk, struct clk_core *parent, * subtree have subscribed to the notifications. Note that if a clk does not * implement the .recalc_rate callback then it is assumed that the clock will * take on the rate of its parent. - * - * Caller must hold prepare_lock. */ -static int __clk_speculate_rates(struct clk_core *clk, +static int __clk_speculate_rates(struct clk_core *core, unsigned long parent_rate) { struct clk_core *child; @@ -1562,19 +1199,19 @@ static int __clk_speculate_rates(struct clk_core *clk, lockdep_assert_held(&prepare_lock); - new_rate = clk_recalc(clk, parent_rate); + new_rate = clk_recalc(core, parent_rate); /* abort rate change if a driver returns NOTIFY_BAD or NOTIFY_STOP */ - if (clk->notifier_count) - ret = __clk_notify(clk, PRE_RATE_CHANGE, clk->rate, new_rate); + if (core->notifier_count) + ret = __clk_notify(core, PRE_RATE_CHANGE, core->rate, new_rate); if (ret & NOTIFY_STOP_MASK) { pr_debug("%s: clk notifier callback for clock %s aborted with error %d\n", - __func__, clk->name, ret); + __func__, core->name, ret); goto out; } - hlist_for_each_entry(child, &clk->children, child_node) { + hlist_for_each_entry(child, &core->children, child_node) { ret = __clk_speculate_rates(child, new_rate); if (ret & NOTIFY_STOP_MASK) break; @@ -1584,20 +1221,20 @@ out: return ret; } -static void clk_calc_subtree(struct clk_core *clk, unsigned long new_rate, +static void clk_calc_subtree(struct clk_core *core, unsigned long new_rate, struct clk_core *new_parent, u8 p_index) { struct clk_core *child; - clk->new_rate = new_rate; - clk->new_parent = new_parent; - clk->new_parent_index = p_index; + core->new_rate = new_rate; + core->new_parent = new_parent; + core->new_parent_index = p_index; /* include clk in new parent's PRE_RATE_CHANGE notifications */ - clk->new_child = NULL; - if (new_parent && new_parent != clk->parent) - new_parent->new_child = clk; + core->new_child = NULL; + if (new_parent && new_parent != core->parent) + new_parent->new_child = core; - hlist_for_each_entry(child, &clk->children, child_node) { + hlist_for_each_entry(child, &core->children, child_node) { child->new_rate = clk_recalc(child, new_rate); clk_calc_subtree(child, child->new_rate, NULL, 0); } @@ -1607,10 +1244,10 @@ static void clk_calc_subtree(struct clk_core *clk, unsigned long new_rate, * calculate the new rates returning the topmost clock that has to be * changed. */ -static struct clk_core *clk_calc_new_rates(struct clk_core *clk, +static struct clk_core *clk_calc_new_rates(struct clk_core *core, unsigned long rate) { - struct clk_core *top = clk; + struct clk_core *top = core; struct clk_core *old_parent, *parent; struct clk_hw *parent_hw; unsigned long best_parent_rate = 0; @@ -1621,20 +1258,20 @@ static struct clk_core *clk_calc_new_rates(struct clk_core *clk, long ret; /* sanity */ - if (IS_ERR_OR_NULL(clk)) + if (IS_ERR_OR_NULL(core)) return NULL; /* save parent rate, if it exists */ - parent = old_parent = clk->parent; + parent = old_parent = core->parent; if (parent) best_parent_rate = parent->rate; - clk_core_get_boundaries(clk, &min_rate, &max_rate); + clk_core_get_boundaries(core, &min_rate, &max_rate); /* find the closest rate and parent clk/rate */ - if (clk->ops->determine_rate) { + if (core->ops->determine_rate) { parent_hw = parent ? parent->hw : NULL; - ret = clk->ops->determine_rate(clk->hw, rate, + ret = core->ops->determine_rate(core->hw, rate, min_rate, max_rate, &best_parent_rate, @@ -1644,8 +1281,8 @@ static struct clk_core *clk_calc_new_rates(struct clk_core *clk, new_rate = ret; parent = parent_hw ? parent_hw->core : NULL; - } else if (clk->ops->round_rate) { - ret = clk->ops->round_rate(clk->hw, rate, + } else if (core->ops->round_rate) { + ret = core->ops->round_rate(core->hw, rate, &best_parent_rate); if (ret < 0) return NULL; @@ -1653,9 +1290,9 @@ static struct clk_core *clk_calc_new_rates(struct clk_core *clk, new_rate = ret; if (new_rate < min_rate || new_rate > max_rate) return NULL; - } else if (!parent || !(clk->flags & CLK_SET_RATE_PARENT)) { + } else if (!parent || !(core->flags & CLK_SET_RATE_PARENT)) { /* pass-through clock without adjustable parent */ - clk->new_rate = clk->rate; + core->new_rate = core->rate; return NULL; } else { /* pass-through clock with adjustable parent */ @@ -1666,28 +1303,28 @@ static struct clk_core *clk_calc_new_rates(struct clk_core *clk, /* some clocks must be gated to change parent */ if (parent != old_parent && - (clk->flags & CLK_SET_PARENT_GATE) && clk->prepare_count) { + (core->flags & CLK_SET_PARENT_GATE) && core->prepare_count) { pr_debug("%s: %s not gated but wants to reparent\n", - __func__, clk->name); + __func__, core->name); return NULL; } /* try finding the new parent index */ - if (parent && clk->num_parents > 1) { - p_index = clk_fetch_parent_index(clk, parent); + if (parent && core->num_parents > 1) { + p_index = clk_fetch_parent_index(core, parent); if (p_index < 0) { pr_debug("%s: clk %s can not be parent of clk %s\n", - __func__, parent->name, clk->name); + __func__, parent->name, core->name); return NULL; } } - if ((clk->flags & CLK_SET_RATE_PARENT) && parent && + if ((core->flags & CLK_SET_RATE_PARENT) && parent && best_parent_rate != parent->rate) top = clk_calc_new_rates(parent, best_parent_rate); out: - clk_calc_subtree(clk, new_rate, parent, p_index); + clk_calc_subtree(core, new_rate, parent, p_index); return top; } @@ -1697,33 +1334,33 @@ out: * so that in case of an error we can walk down the whole tree again and * abort the change. */ -static struct clk_core *clk_propagate_rate_change(struct clk_core *clk, +static struct clk_core *clk_propagate_rate_change(struct clk_core *core, unsigned long event) { struct clk_core *child, *tmp_clk, *fail_clk = NULL; int ret = NOTIFY_DONE; - if (clk->rate == clk->new_rate) + if (core->rate == core->new_rate) return NULL; - if (clk->notifier_count) { - ret = __clk_notify(clk, event, clk->rate, clk->new_rate); + if (core->notifier_count) { + ret = __clk_notify(core, event, core->rate, core->new_rate); if (ret & NOTIFY_STOP_MASK) - fail_clk = clk; + fail_clk = core; } - hlist_for_each_entry(child, &clk->children, child_node) { + hlist_for_each_entry(child, &core->children, child_node) { /* Skip children who will be reparented to another clock */ - if (child->new_parent && child->new_parent != clk) + if (child->new_parent && child->new_parent != core) continue; tmp_clk = clk_propagate_rate_change(child, event); if (tmp_clk) fail_clk = tmp_clk; } - /* handle the new child who might not be in clk->children yet */ - if (clk->new_child) { - tmp_clk = clk_propagate_rate_change(clk->new_child, event); + /* handle the new child who might not be in core->children yet */ + if (core->new_child) { + tmp_clk = clk_propagate_rate_change(core->new_child, event); if (tmp_clk) fail_clk = tmp_clk; } @@ -1735,7 +1372,7 @@ static struct clk_core *clk_propagate_rate_change(struct clk_core *clk, * walk down a subtree and set the new rates notifying the rate * change on the way */ -static void clk_change_rate(struct clk_core *clk) +static void clk_change_rate(struct clk_core *core) { struct clk_core *child; struct hlist_node *tmp; @@ -1744,77 +1381,80 @@ static void clk_change_rate(struct clk_core *clk) bool skip_set_rate = false; struct clk_core *old_parent; - old_rate = clk->rate; + old_rate = core->rate; - if (clk->new_parent) - best_parent_rate = clk->new_parent->rate; - else if (clk->parent) - best_parent_rate = clk->parent->rate; + if (core->new_parent) + best_parent_rate = core->new_parent->rate; + else if (core->parent) + best_parent_rate = core->parent->rate; - if (clk->new_parent && clk->new_parent != clk->parent) { - old_parent = __clk_set_parent_before(clk, clk->new_parent); - trace_clk_set_parent(clk, clk->new_parent); + if (core->new_parent && core->new_parent != core->parent) { + old_parent = __clk_set_parent_before(core, core->new_parent); + trace_clk_set_parent(core, core->new_parent); - if (clk->ops->set_rate_and_parent) { + if (core->ops->set_rate_and_parent) { skip_set_rate = true; - clk->ops->set_rate_and_parent(clk->hw, clk->new_rate, + core->ops->set_rate_and_parent(core->hw, core->new_rate, best_parent_rate, - clk->new_parent_index); - } else if (clk->ops->set_parent) { - clk->ops->set_parent(clk->hw, clk->new_parent_index); + core->new_parent_index); + } else if (core->ops->set_parent) { + core->ops->set_parent(core->hw, core->new_parent_index); } - trace_clk_set_parent_complete(clk, clk->new_parent); - __clk_set_parent_after(clk, clk->new_parent, old_parent); + trace_clk_set_parent_complete(core, core->new_parent); + __clk_set_parent_after(core, core->new_parent, old_parent); } - trace_clk_set_rate(clk, clk->new_rate); + trace_clk_set_rate(core, core->new_rate); + + if (!skip_set_rate && core->ops->set_rate) + core->ops->set_rate(core->hw, core->new_rate, best_parent_rate); - if (!skip_set_rate && clk->ops->set_rate) - clk->ops->set_rate(clk->hw, clk->new_rate, best_parent_rate); + trace_clk_set_rate_complete(core, core->new_rate); - trace_clk_set_rate_complete(clk, clk->new_rate); + core->rate = clk_recalc(core, best_parent_rate); - clk->rate = clk_recalc(clk, best_parent_rate); + if (core->notifier_count && old_rate != core->rate) + __clk_notify(core, POST_RATE_CHANGE, old_rate, core->rate); - if (clk->notifier_count && old_rate != clk->rate) - __clk_notify(clk, POST_RATE_CHANGE, old_rate, clk->rate); + if (core->flags & CLK_RECALC_NEW_RATES) + (void)clk_calc_new_rates(core, core->new_rate); /* * Use safe iteration, as change_rate can actually swap parents * for certain clock types. */ - hlist_for_each_entry_safe(child, tmp, &clk->children, child_node) { + hlist_for_each_entry_safe(child, tmp, &core->children, child_node) { /* Skip children who will be reparented to another clock */ - if (child->new_parent && child->new_parent != clk) + if (child->new_parent && child->new_parent != core) continue; clk_change_rate(child); } - /* handle the new child who might not be in clk->children yet */ - if (clk->new_child) - clk_change_rate(clk->new_child); + /* handle the new child who might not be in core->children yet */ + if (core->new_child) + clk_change_rate(core->new_child); } -static int clk_core_set_rate_nolock(struct clk_core *clk, +static int clk_core_set_rate_nolock(struct clk_core *core, unsigned long req_rate) { struct clk_core *top, *fail_clk; unsigned long rate = req_rate; int ret = 0; - if (!clk) + if (!core) return 0; /* bail early if nothing to do */ - if (rate == clk_core_get_rate_nolock(clk)) + if (rate == clk_core_get_rate_nolock(core)) return 0; - if ((clk->flags & CLK_SET_RATE_GATE) && clk->prepare_count) + if ((core->flags & CLK_SET_RATE_GATE) && core->prepare_count) return -EBUSY; /* calculate new rates and get the topmost changed clock */ - top = clk_calc_new_rates(clk, rate); + top = clk_calc_new_rates(core, rate); if (!top) return -EINVAL; @@ -1830,7 +1470,7 @@ static int clk_core_set_rate_nolock(struct clk_core *clk, /* change the rates */ clk_change_rate(top); - clk->req_rate = req_rate; + core->req_rate = req_rate; return ret; } @@ -1969,55 +1609,63 @@ EXPORT_SYMBOL_GPL(clk_get_parent); * .parents array exists, and if so use it to avoid an expensive tree * traversal. If .parents does not exist then walk the tree. */ -static struct clk_core *__clk_init_parent(struct clk_core *clk) +static struct clk_core *__clk_init_parent(struct clk_core *core) { struct clk_core *ret = NULL; u8 index; /* handle the trivial cases */ - if (!clk->num_parents) + if (!core->num_parents) goto out; - if (clk->num_parents == 1) { - if (IS_ERR_OR_NULL(clk->parent)) - clk->parent = clk_core_lookup(clk->parent_names[0]); - ret = clk->parent; + if (core->num_parents == 1) { + if (IS_ERR_OR_NULL(core->parent)) + core->parent = clk_core_lookup(core->parent_names[0]); + ret = core->parent; goto out; } - if (!clk->ops->get_parent) { - WARN(!clk->ops->get_parent, + if (!core->ops->get_parent) { + WARN(!core->ops->get_parent, "%s: multi-parent clocks must implement .get_parent\n", __func__); goto out; }; /* - * Do our best to cache parent clocks in clk->parents. This prevents - * unnecessary and expensive lookups. We don't set clk->parent here; + * Do our best to cache parent clocks in core->parents. This prevents + * unnecessary and expensive lookups. We don't set core->parent here; * that is done by the calling function. */ - index = clk->ops->get_parent(clk->hw); + index = core->ops->get_parent(core->hw); - if (!clk->parents) - clk->parents = - kcalloc(clk->num_parents, sizeof(struct clk *), + if (!core->parents) + core->parents = + kcalloc(core->num_parents, sizeof(struct clk *), GFP_KERNEL); - ret = clk_core_get_parent_by_index(clk, index); + ret = clk_core_get_parent_by_index(core, index); out: return ret; } -static void clk_core_reparent(struct clk_core *clk, +static void clk_core_reparent(struct clk_core *core, struct clk_core *new_parent) { - clk_reparent(clk, new_parent); - __clk_recalc_accuracies(clk); - __clk_recalc_rates(clk, POST_RATE_CHANGE); + clk_reparent(core, new_parent); + __clk_recalc_accuracies(core); + __clk_recalc_rates(core, POST_RATE_CHANGE); +} + +void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent) +{ + if (!hw) + return; + + clk_core_reparent(hw->core, !new_parent ? NULL : new_parent->core); } /** @@ -2054,61 +1702,61 @@ bool clk_has_parent(struct clk *clk, struct clk *parent) } EXPORT_SYMBOL_GPL(clk_has_parent); -static int clk_core_set_parent(struct clk_core *clk, struct clk_core *parent) +static int clk_core_set_parent(struct clk_core *core, struct clk_core *parent) { int ret = 0; int p_index = 0; unsigned long p_rate = 0; - if (!clk) + if (!core) return 0; /* prevent racing with updates to the clock topology */ clk_prepare_lock(); - if (clk->parent == parent) + if (core->parent == parent) goto out; /* verify ops for for multi-parent clks */ - if ((clk->num_parents > 1) && (!clk->ops->set_parent)) { + if ((core->num_parents > 1) && (!core->ops->set_parent)) { ret = -ENOSYS; goto out; } /* check that we are allowed to re-parent if the clock is in use */ - if ((clk->flags & CLK_SET_PARENT_GATE) && clk->prepare_count) { + if ((core->flags & CLK_SET_PARENT_GATE) && core->prepare_count) { ret = -EBUSY; goto out; } /* try finding the new parent index */ if (parent) { - p_index = clk_fetch_parent_index(clk, parent); + p_index = clk_fetch_parent_index(core, parent); p_rate = parent->rate; if (p_index < 0) { pr_debug("%s: clk %s can not be parent of clk %s\n", - __func__, parent->name, clk->name); + __func__, parent->name, core->name); ret = p_index; goto out; } } /* propagate PRE_RATE_CHANGE notifications */ - ret = __clk_speculate_rates(clk, p_rate); + ret = __clk_speculate_rates(core, p_rate); /* abort if a driver objects */ if (ret & NOTIFY_STOP_MASK) goto out; /* do the re-parent */ - ret = __clk_set_parent(clk, parent, p_index); + ret = __clk_set_parent(core, parent, p_index); /* propagate rate an accuracy recalculation accordingly */ if (ret) { - __clk_recalc_rates(clk, ABORT_RATE_CHANGE); + __clk_recalc_rates(core, ABORT_RATE_CHANGE); } else { - __clk_recalc_rates(clk, POST_RATE_CHANGE); - __clk_recalc_accuracies(clk); + __clk_recalc_rates(core, POST_RATE_CHANGE); + __clk_recalc_accuracies(core); } out: @@ -2193,21 +1841,16 @@ int clk_set_phase(struct clk *clk, int degrees) } EXPORT_SYMBOL_GPL(clk_set_phase); -static int clk_core_get_phase(struct clk_core *clk) +static int clk_core_get_phase(struct clk_core *core) { - int ret = 0; - - if (!clk) - goto out; + int ret; clk_prepare_lock(); - ret = clk->phase; + ret = core->phase; clk_prepare_unlock(); -out: return ret; } -EXPORT_SYMBOL_GPL(clk_get_phase); /** * clk_get_phase - return the phase shift of a clock signal @@ -2223,6 +1866,7 @@ int clk_get_phase(struct clk *clk) return clk_core_get_phase(clk->core); } +EXPORT_SYMBOL_GPL(clk_get_phase); /** * clk_is_match - check if two clk's point to the same hardware clock @@ -2250,6 +1894,337 @@ bool clk_is_match(const struct clk *p, const struct clk *q) } EXPORT_SYMBOL_GPL(clk_is_match); +/*** debugfs support ***/ + +#ifdef CONFIG_DEBUG_FS +#include <linux/debugfs.h> + +static struct dentry *rootdir; +static int inited = 0; +static DEFINE_MUTEX(clk_debug_lock); +static HLIST_HEAD(clk_debug_list); + +static struct hlist_head *all_lists[] = { + &clk_root_list, + &clk_orphan_list, + NULL, +}; + +static struct hlist_head *orphan_list[] = { + &clk_orphan_list, + NULL, +}; + +static void clk_summary_show_one(struct seq_file *s, struct clk_core *c, + int level) +{ + if (!c) + return; + + seq_printf(s, "%*s%-*s %11d %12d %11lu %10lu %-3d\n", + level * 3 + 1, "", + 30 - level * 3, c->name, + c->enable_count, c->prepare_count, clk_core_get_rate(c), + clk_core_get_accuracy(c), clk_core_get_phase(c)); +} + +static void clk_summary_show_subtree(struct seq_file *s, struct clk_core *c, + int level) +{ + struct clk_core *child; + + if (!c) + return; + + clk_summary_show_one(s, c, level); + + hlist_for_each_entry(child, &c->children, child_node) + clk_summary_show_subtree(s, child, level + 1); +} + +static int clk_summary_show(struct seq_file *s, void *data) +{ + struct clk_core *c; + struct hlist_head **lists = (struct hlist_head **)s->private; + + seq_puts(s, " clock enable_cnt prepare_cnt rate accuracy phase\n"); + seq_puts(s, "----------------------------------------------------------------------------------------\n"); + + clk_prepare_lock(); + + for (; *lists; lists++) + hlist_for_each_entry(c, *lists, child_node) + clk_summary_show_subtree(s, c, 0); + + clk_prepare_unlock(); + + return 0; +} + + +static int clk_summary_open(struct inode *inode, struct file *file) +{ + return single_open(file, clk_summary_show, inode->i_private); +} + +static const struct file_operations clk_summary_fops = { + .open = clk_summary_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void clk_dump_one(struct seq_file *s, struct clk_core *c, int level) +{ + if (!c) + return; + + /* This should be JSON format, i.e. elements separated with a comma */ + seq_printf(s, "\"%s\": { ", c->name); + seq_printf(s, "\"enable_count\": %d,", c->enable_count); + seq_printf(s, "\"prepare_count\": %d,", c->prepare_count); + seq_printf(s, "\"rate\": %lu,", clk_core_get_rate(c)); + seq_printf(s, "\"accuracy\": %lu,", clk_core_get_accuracy(c)); + seq_printf(s, "\"phase\": %d", clk_core_get_phase(c)); +} + +static void clk_dump_subtree(struct seq_file *s, struct clk_core *c, int level) +{ + struct clk_core *child; + + if (!c) + return; + + clk_dump_one(s, c, level); + + hlist_for_each_entry(child, &c->children, child_node) { + seq_printf(s, ","); + clk_dump_subtree(s, child, level + 1); + } + + seq_printf(s, "}"); +} + +static int clk_dump(struct seq_file *s, void *data) +{ + struct clk_core *c; + bool first_node = true; + struct hlist_head **lists = (struct hlist_head **)s->private; + + seq_printf(s, "{"); + + clk_prepare_lock(); + + for (; *lists; lists++) { + hlist_for_each_entry(c, *lists, child_node) { + if (!first_node) + seq_puts(s, ","); + first_node = false; + clk_dump_subtree(s, c, 0); + } + } + + clk_prepare_unlock(); + + seq_puts(s, "}\n"); + return 0; +} + + +static int clk_dump_open(struct inode *inode, struct file *file) +{ + return single_open(file, clk_dump, inode->i_private); +} + +static const struct file_operations clk_dump_fops = { + .open = clk_dump_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int clk_debug_create_one(struct clk_core *core, struct dentry *pdentry) +{ + struct dentry *d; + int ret = -ENOMEM; + + if (!core || !pdentry) { + ret = -EINVAL; + goto out; + } + + d = debugfs_create_dir(core->name, pdentry); + if (!d) + goto out; + + core->dentry = d; + + d = debugfs_create_u32("clk_rate", S_IRUGO, core->dentry, + (u32 *)&core->rate); + if (!d) + goto err_out; + + d = debugfs_create_u32("clk_accuracy", S_IRUGO, core->dentry, + (u32 *)&core->accuracy); + if (!d) + goto err_out; + + d = debugfs_create_u32("clk_phase", S_IRUGO, core->dentry, + (u32 *)&core->phase); + if (!d) + goto err_out; + + d = debugfs_create_x32("clk_flags", S_IRUGO, core->dentry, + (u32 *)&core->flags); + if (!d) + goto err_out; + + d = debugfs_create_u32("clk_prepare_count", S_IRUGO, core->dentry, + (u32 *)&core->prepare_count); + if (!d) + goto err_out; + + d = debugfs_create_u32("clk_enable_count", S_IRUGO, core->dentry, + (u32 *)&core->enable_count); + if (!d) + goto err_out; + + d = debugfs_create_u32("clk_notifier_count", S_IRUGO, core->dentry, + (u32 *)&core->notifier_count); + if (!d) + goto err_out; + + if (core->ops->debug_init) { + ret = core->ops->debug_init(core->hw, core->dentry); + if (ret) + goto err_out; + } + + ret = 0; + goto out; + +err_out: + debugfs_remove_recursive(core->dentry); + core->dentry = NULL; +out: + return ret; +} + +/** + * clk_debug_register - add a clk node to the debugfs clk directory + * @core: the clk being added to the debugfs clk directory + * + * Dynamically adds a clk to the debugfs clk directory if debugfs has been + * initialized. Otherwise it bails out early since the debugfs clk directory + * will be created lazily by clk_debug_init as part of a late_initcall. + */ +static int clk_debug_register(struct clk_core *core) +{ + int ret = 0; + + mutex_lock(&clk_debug_lock); + hlist_add_head(&core->debug_node, &clk_debug_list); + + if (!inited) + goto unlock; + + ret = clk_debug_create_one(core, rootdir); +unlock: + mutex_unlock(&clk_debug_lock); + + return ret; +} + + /** + * clk_debug_unregister - remove a clk node from the debugfs clk directory + * @core: the clk being removed from the debugfs clk directory + * + * Dynamically removes a clk and all its child nodes from the + * debugfs clk directory if clk->dentry points to debugfs created by + * clk_debug_register in __clk_init. + */ +static void clk_debug_unregister(struct clk_core *core) +{ + mutex_lock(&clk_debug_lock); + hlist_del_init(&core->debug_node); + debugfs_remove_recursive(core->dentry); + core->dentry = NULL; + mutex_unlock(&clk_debug_lock); +} + +struct dentry *clk_debugfs_add_file(struct clk_hw *hw, char *name, umode_t mode, + void *data, const struct file_operations *fops) +{ + struct dentry *d = NULL; + + if (hw->core->dentry) + d = debugfs_create_file(name, mode, hw->core->dentry, data, + fops); + + return d; +} +EXPORT_SYMBOL_GPL(clk_debugfs_add_file); + +/** + * clk_debug_init - lazily populate the debugfs clk directory + * + * clks are often initialized very early during boot before memory can be + * dynamically allocated and well before debugfs is setup. This function + * populates the debugfs clk directory once at boot-time when we know that + * debugfs is setup. It should only be called once at boot-time, all other clks + * added dynamically will be done so with clk_debug_register. + */ +static int __init clk_debug_init(void) +{ + struct clk_core *core; + struct dentry *d; + + rootdir = debugfs_create_dir("clk", NULL); + + if (!rootdir) + return -ENOMEM; + + d = debugfs_create_file("clk_summary", S_IRUGO, rootdir, &all_lists, + &clk_summary_fops); + if (!d) + return -ENOMEM; + + d = debugfs_create_file("clk_dump", S_IRUGO, rootdir, &all_lists, + &clk_dump_fops); + if (!d) + return -ENOMEM; + + d = debugfs_create_file("clk_orphan_summary", S_IRUGO, rootdir, + &orphan_list, &clk_summary_fops); + if (!d) + return -ENOMEM; + + d = debugfs_create_file("clk_orphan_dump", S_IRUGO, rootdir, + &orphan_list, &clk_dump_fops); + if (!d) + return -ENOMEM; + + mutex_lock(&clk_debug_lock); + hlist_for_each_entry(core, &clk_debug_list, debug_node) + clk_debug_create_one(core, rootdir); + + inited = 1; + mutex_unlock(&clk_debug_lock); + + return 0; +} +late_initcall(clk_debug_init); +#else +static inline int clk_debug_register(struct clk_core *core) { return 0; } +static inline void clk_debug_reparent(struct clk_core *core, + struct clk_core *new_parent) +{ +} +static inline void clk_debug_unregister(struct clk_core *core) +{ +} +#endif + /** * __clk_init - initialize the data structures in a struct clk * @dev: device initializing this clk, placeholder for now @@ -2263,67 +2238,67 @@ static int __clk_init(struct device *dev, struct clk *clk_user) int i, ret = 0; struct clk_core *orphan; struct hlist_node *tmp2; - struct clk_core *clk; + struct clk_core *core; unsigned long rate; if (!clk_user) return -EINVAL; - clk = clk_user->core; + core = clk_user->core; clk_prepare_lock(); /* check to see if a clock with this name is already registered */ - if (clk_core_lookup(clk->name)) { + if (clk_core_lookup(core->name)) { pr_debug("%s: clk %s already initialized\n", - __func__, clk->name); + __func__, core->name); ret = -EEXIST; goto out; } /* check that clk_ops are sane. See Documentation/clk.txt */ - if (clk->ops->set_rate && - !((clk->ops->round_rate || clk->ops->determine_rate) && - clk->ops->recalc_rate)) { + if (core->ops->set_rate && + !((core->ops->round_rate || core->ops->determine_rate) && + core->ops->recalc_rate)) { pr_warning("%s: %s must implement .round_rate or .determine_rate in addition to .recalc_rate\n", - __func__, clk->name); + __func__, core->name); ret = -EINVAL; goto out; } - if (clk->ops->set_parent && !clk->ops->get_parent) { + if (core->ops->set_parent && !core->ops->get_parent) { pr_warning("%s: %s must implement .get_parent & .set_parent\n", - __func__, clk->name); + __func__, core->name); ret = -EINVAL; goto out; } - if (clk->ops->set_rate_and_parent && - !(clk->ops->set_parent && clk->ops->set_rate)) { + if (core->ops->set_rate_and_parent && + !(core->ops->set_parent && core->ops->set_rate)) { pr_warn("%s: %s must implement .set_parent & .set_rate\n", - __func__, clk->name); + __func__, core->name); ret = -EINVAL; goto out; } /* throw a WARN if any entries in parent_names are NULL */ - for (i = 0; i < clk->num_parents; i++) - WARN(!clk->parent_names[i], + for (i = 0; i < core->num_parents; i++) + WARN(!core->parent_names[i], "%s: invalid NULL in %s's .parent_names\n", - __func__, clk->name); + __func__, core->name); /* * Allocate an array of struct clk *'s to avoid unnecessary string * look-ups of clk's possible parents. This can fail for clocks passed - * in to clk_init during early boot; thus any access to clk->parents[] + * in to clk_init during early boot; thus any access to core->parents[] * must always check for a NULL pointer and try to populate it if * necessary. * - * If clk->parents is not NULL we skip this entire block. This allows - * for clock drivers to statically initialize clk->parents. + * If core->parents is not NULL we skip this entire block. This allows + * for clock drivers to statically initialize core->parents. */ - if (clk->num_parents > 1 && !clk->parents) { - clk->parents = kcalloc(clk->num_parents, sizeof(struct clk *), + if (core->num_parents > 1 && !core->parents) { + core->parents = kcalloc(core->num_parents, sizeof(struct clk *), GFP_KERNEL); /* * clk_core_lookup returns NULL for parents that have not been @@ -2331,16 +2306,16 @@ static int __clk_init(struct device *dev, struct clk *clk_user) * for a NULL pointer. We can always perform lazy lookups for * missing parents later on. */ - if (clk->parents) - for (i = 0; i < clk->num_parents; i++) - clk->parents[i] = - clk_core_lookup(clk->parent_names[i]); + if (core->parents) + for (i = 0; i < core->num_parents; i++) + core->parents[i] = + clk_core_lookup(core->parent_names[i]); } - clk->parent = __clk_init_parent(clk); + core->parent = __clk_init_parent(core); /* - * Populate clk->parent if parent has already been __clk_init'd. If + * Populate core->parent if parent has already been __clk_init'd. If * parent has not yet been __clk_init'd then place clk in the orphan * list. If clk has set the CLK_IS_ROOT flag then place it in the root * clk list. @@ -2349,13 +2324,13 @@ static int __clk_init(struct device *dev, struct clk *clk_user) * clocks and re-parent any that are children of the clock currently * being clk_init'd. */ - if (clk->parent) - hlist_add_head(&clk->child_node, - &clk->parent->children); - else if (clk->flags & CLK_IS_ROOT) - hlist_add_head(&clk->child_node, &clk_root_list); + if (core->parent) + hlist_add_head(&core->child_node, + &core->parent->children); + else if (core->flags & CLK_IS_ROOT) + hlist_add_head(&core->child_node, &clk_root_list); else - hlist_add_head(&clk->child_node, &clk_orphan_list); + hlist_add_head(&core->child_node, &clk_orphan_list); /* * Set clk's accuracy. The preferred method is to use @@ -2364,23 +2339,23 @@ static int __clk_init(struct device *dev, struct clk *clk_user) * parent (or is orphaned) then accuracy is set to zero (perfect * clock). */ - if (clk->ops->recalc_accuracy) - clk->accuracy = clk->ops->recalc_accuracy(clk->hw, - __clk_get_accuracy(clk->parent)); - else if (clk->parent) - clk->accuracy = clk->parent->accuracy; + if (core->ops->recalc_accuracy) + core->accuracy = core->ops->recalc_accuracy(core->hw, + __clk_get_accuracy(core->parent)); + else if (core->parent) + core->accuracy = core->parent->accuracy; else - clk->accuracy = 0; + core->accuracy = 0; /* * Set clk's phase. * Since a phase is by definition relative to its parent, just * query the current clock phase, or just assume it's in phase. */ - if (clk->ops->get_phase) - clk->phase = clk->ops->get_phase(clk->hw); + if (core->ops->get_phase) + core->phase = core->ops->get_phase(core->hw); else - clk->phase = 0; + core->phase = 0; /* * Set clk's rate. The preferred method is to use .recalc_rate. For @@ -2388,14 +2363,14 @@ static int __clk_init(struct device *dev, struct clk *clk_user) * parent's rate. If a clock doesn't have a parent (or is orphaned) * then rate is set to zero. */ - if (clk->ops->recalc_rate) - rate = clk->ops->recalc_rate(clk->hw, - clk_core_get_rate_nolock(clk->parent)); - else if (clk->parent) - rate = clk->parent->rate; + if (core->ops->recalc_rate) + rate = core->ops->recalc_rate(core->hw, + clk_core_get_rate_nolock(core->parent)); + else if (core->parent) + rate = core->parent->rate; else rate = 0; - clk->rate = clk->req_rate = rate; + core->rate = core->req_rate = rate; /* * walk the list of orphan clocks and reparent any that are children of @@ -2404,14 +2379,14 @@ static int __clk_init(struct device *dev, struct clk *clk_user) hlist_for_each_entry_safe(orphan, tmp2, &clk_orphan_list, child_node) { if (orphan->num_parents && orphan->ops->get_parent) { i = orphan->ops->get_parent(orphan->hw); - if (!strcmp(clk->name, orphan->parent_names[i])) - clk_core_reparent(orphan, clk); + if (!strcmp(core->name, orphan->parent_names[i])) + clk_core_reparent(orphan, core); continue; } for (i = 0; i < orphan->num_parents; i++) - if (!strcmp(clk->name, orphan->parent_names[i])) { - clk_core_reparent(orphan, clk); + if (!strcmp(core->name, orphan->parent_names[i])) { + clk_core_reparent(orphan, core); break; } } @@ -2424,15 +2399,15 @@ static int __clk_init(struct device *dev, struct clk *clk_user) * Please consider other ways of solving initialization problems before * using this callback, as its use is discouraged. */ - if (clk->ops->init) - clk->ops->init(clk->hw); + if (core->ops->init) + core->ops->init(core->hw); - kref_init(&clk->ref); + kref_init(&core->ref); out: clk_prepare_unlock(); if (!ret) - clk_debug_register(clk); + clk_debug_register(core); return ret; } @@ -2478,63 +2453,58 @@ void __clk_free_clk(struct clk *clk) * * clk_register is the primary interface for populating the clock tree with new * clock nodes. It returns a pointer to the newly allocated struct clk which - * cannot be dereferenced by driver code but may be used in conjuction with the + * cannot be dereferenced by driver code but may be used in conjunction with the * rest of the clock API. In the event of an error clk_register will return an * error code; drivers must test for an error code after calling clk_register. */ struct clk *clk_register(struct device *dev, struct clk_hw *hw) { int i, ret; - struct clk_core *clk; + struct clk_core *core; - clk = kzalloc(sizeof(*clk), GFP_KERNEL); - if (!clk) { - pr_err("%s: could not allocate clk\n", __func__); + core = kzalloc(sizeof(*core), GFP_KERNEL); + if (!core) { ret = -ENOMEM; goto fail_out; } - clk->name = kstrdup_const(hw->init->name, GFP_KERNEL); - if (!clk->name) { - pr_err("%s: could not allocate clk->name\n", __func__); + core->name = kstrdup_const(hw->init->name, GFP_KERNEL); + if (!core->name) { ret = -ENOMEM; goto fail_name; } - clk->ops = hw->init->ops; + core->ops = hw->init->ops; if (dev && dev->driver) - clk->owner = dev->driver->owner; - clk->hw = hw; - clk->flags = hw->init->flags; - clk->num_parents = hw->init->num_parents; - hw->core = clk; + core->owner = dev->driver->owner; + core->hw = hw; + core->flags = hw->init->flags; + core->num_parents = hw->init->num_parents; + hw->core = core; /* allocate local copy in case parent_names is __initdata */ - clk->parent_names = kcalloc(clk->num_parents, sizeof(char *), + core->parent_names = kcalloc(core->num_parents, sizeof(char *), GFP_KERNEL); - if (!clk->parent_names) { - pr_err("%s: could not allocate clk->parent_names\n", __func__); + if (!core->parent_names) { ret = -ENOMEM; goto fail_parent_names; } /* copy each string name in case parent_names is __initdata */ - for (i = 0; i < clk->num_parents; i++) { - clk->parent_names[i] = kstrdup_const(hw->init->parent_names[i], + for (i = 0; i < core->num_parents; i++) { + core->parent_names[i] = kstrdup_const(hw->init->parent_names[i], GFP_KERNEL); - if (!clk->parent_names[i]) { - pr_err("%s: could not copy parent_names\n", __func__); + if (!core->parent_names[i]) { ret = -ENOMEM; goto fail_parent_names_copy; } } - INIT_HLIST_HEAD(&clk->clks); + INIT_HLIST_HEAD(&core->clks); hw->clk = __clk_create_clk(hw, NULL, NULL); if (IS_ERR(hw->clk)) { - pr_err("%s: could not allocate per-user clk\n", __func__); ret = PTR_ERR(hw->clk); goto fail_parent_names_copy; } @@ -2548,35 +2518,32 @@ struct clk *clk_register(struct device *dev, struct clk_hw *hw) fail_parent_names_copy: while (--i >= 0) - kfree_const(clk->parent_names[i]); - kfree(clk->parent_names); + kfree_const(core->parent_names[i]); + kfree(core->parent_names); fail_parent_names: - kfree_const(clk->name); + kfree_const(core->name); fail_name: - kfree(clk); + kfree(core); fail_out: return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(clk_register); -/* - * Free memory allocated for a clock. - * Caller must hold prepare_lock. - */ +/* Free memory allocated for a clock. */ static void __clk_release(struct kref *ref) { - struct clk_core *clk = container_of(ref, struct clk_core, ref); - int i = clk->num_parents; + struct clk_core *core = container_of(ref, struct clk_core, ref); + int i = core->num_parents; lockdep_assert_held(&prepare_lock); - kfree(clk->parents); + kfree(core->parents); while (--i >= 0) - kfree_const(clk->parent_names[i]); + kfree_const(core->parent_names[i]); - kfree(clk->parent_names); - kfree_const(clk->name); - kfree(clk); + kfree(core->parent_names); + kfree_const(core->name); + kfree(core); } /* @@ -3060,6 +3027,27 @@ const char *of_clk_get_parent_name(struct device_node *np, int index) } EXPORT_SYMBOL_GPL(of_clk_get_parent_name); +/** + * of_clk_parent_fill() - Fill @parents with names of @np's parents and return + * number of parents + * @np: Device node pointer associated with clock provider + * @parents: pointer to char array that hold the parents' names + * @size: size of the @parents array + * + * Return: number of parents for the clock node. + */ +int of_clk_parent_fill(struct device_node *np, const char **parents, + unsigned int size) +{ + unsigned int i = 0; + + while (i < size && (parents[i] = of_clk_get_parent_name(np, i)) != NULL) + i++; + + return i; +} +EXPORT_SYMBOL_GPL(of_clk_parent_fill); + struct clock_provider { of_clk_init_cb_t clk_init_cb; struct device_node *np; diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c index 1fcb6ef2cdac..c0eaf0973bd2 100644 --- a/drivers/clk/clkdev.c +++ b/drivers/clk/clkdev.c @@ -177,7 +177,7 @@ struct clk *clk_get_sys(const char *dev_id, const char *con_id) if (!cl) goto out; - clk = __clk_create_clk(__clk_get_hw(cl->clk), dev_id, con_id); + clk = __clk_create_clk(cl->clk_hw, dev_id, con_id); if (IS_ERR(clk)) goto out; @@ -215,18 +215,26 @@ void clk_put(struct clk *clk) } EXPORT_SYMBOL(clk_put); -void clkdev_add(struct clk_lookup *cl) +static void __clkdev_add(struct clk_lookup *cl) { mutex_lock(&clocks_mutex); list_add_tail(&cl->node, &clocks); mutex_unlock(&clocks_mutex); } + +void clkdev_add(struct clk_lookup *cl) +{ + if (!cl->clk_hw) + cl->clk_hw = __clk_get_hw(cl->clk); + __clkdev_add(cl); +} EXPORT_SYMBOL(clkdev_add); -void __init clkdev_add_table(struct clk_lookup *cl, size_t num) +void clkdev_add_table(struct clk_lookup *cl, size_t num) { mutex_lock(&clocks_mutex); while (num--) { + cl->clk_hw = __clk_get_hw(cl->clk); list_add_tail(&cl->node, &clocks); cl++; } @@ -243,7 +251,7 @@ struct clk_lookup_alloc { }; static struct clk_lookup * __init_refok -vclkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, +vclkdev_alloc(struct clk_hw *hw, const char *con_id, const char *dev_fmt, va_list ap) { struct clk_lookup_alloc *cla; @@ -252,7 +260,7 @@ vclkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, if (!cla) return NULL; - cla->cl.clk = clk; + cla->cl.clk_hw = hw; if (con_id) { strlcpy(cla->con_id, con_id, sizeof(cla->con_id)); cla->cl.con_id = cla->con_id; @@ -266,6 +274,19 @@ vclkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, return &cla->cl; } +static struct clk_lookup * +vclkdev_create(struct clk_hw *hw, const char *con_id, const char *dev_fmt, + va_list ap) +{ + struct clk_lookup *cl; + + cl = vclkdev_alloc(hw, con_id, dev_fmt, ap); + if (cl) + __clkdev_add(cl); + + return cl; +} + struct clk_lookup * __init_refok clkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, ...) { @@ -273,28 +294,49 @@ clkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, ...) va_list ap; va_start(ap, dev_fmt); - cl = vclkdev_alloc(clk, con_id, dev_fmt, ap); + cl = vclkdev_alloc(__clk_get_hw(clk), con_id, dev_fmt, ap); va_end(ap); return cl; } EXPORT_SYMBOL(clkdev_alloc); -int clk_add_alias(const char *alias, const char *alias_dev_name, char *id, - struct device *dev) +/** + * clkdev_create - allocate and add a clkdev lookup structure + * @clk: struct clk to associate with all clk_lookups + * @con_id: connection ID string on device + * @dev_fmt: format string describing device name + * + * Returns a clk_lookup structure, which can be later unregistered and + * freed. + */ +struct clk_lookup *clkdev_create(struct clk *clk, const char *con_id, + const char *dev_fmt, ...) { - struct clk *r = clk_get(dev, id); + struct clk_lookup *cl; + va_list ap; + + va_start(ap, dev_fmt); + cl = vclkdev_create(__clk_get_hw(clk), con_id, dev_fmt, ap); + va_end(ap); + + return cl; +} +EXPORT_SYMBOL_GPL(clkdev_create); + +int clk_add_alias(const char *alias, const char *alias_dev_name, + const char *con_id, struct device *dev) +{ + struct clk *r = clk_get(dev, con_id); struct clk_lookup *l; if (IS_ERR(r)) return PTR_ERR(r); - l = clkdev_alloc(r, alias, alias_dev_name); + l = clkdev_create(r, alias, "%s", alias_dev_name); clk_put(r); - if (!l) - return -ENODEV; - clkdev_add(l); - return 0; + + return l ? 0 : -ENODEV; } EXPORT_SYMBOL(clk_add_alias); @@ -334,15 +376,10 @@ int clk_register_clkdev(struct clk *clk, const char *con_id, return PTR_ERR(clk); va_start(ap, dev_fmt); - cl = vclkdev_alloc(clk, con_id, dev_fmt, ap); + cl = vclkdev_create(__clk_get_hw(clk), con_id, dev_fmt, ap); va_end(ap); - if (!cl) - return -ENOMEM; - - clkdev_add(cl); - - return 0; + return cl ? 0 : -ENOMEM; } EXPORT_SYMBOL(clk_register_clkdev); @@ -365,8 +402,8 @@ int clk_register_clkdevs(struct clk *clk, struct clk_lookup *cl, size_t num) return PTR_ERR(clk); for (i = 0; i < num; i++, cl++) { - cl->clk = clk; - clkdev_add(cl); + cl->clk_hw = __clk_get_hw(clk); + __clkdev_add(cl); } return 0; diff --git a/drivers/clk/h8300/Makefile b/drivers/clk/h8300/Makefile new file mode 100644 index 000000000000..b86427c31fca --- /dev/null +++ b/drivers/clk/h8300/Makefile @@ -0,0 +1,2 @@ +obj-y += clk-div.o +obj-$(CONFIG_H8S2678) += clk-h8s2678.o diff --git a/drivers/clk/h8300/clk-div.c b/drivers/clk/h8300/clk-div.c new file mode 100644 index 000000000000..56f9eba91b83 --- /dev/null +++ b/drivers/clk/h8300/clk-div.c @@ -0,0 +1,53 @@ +/* + * H8/300 divide clock driver + * + * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp> + */ + +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/clk-provider.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/of_address.h> + +static DEFINE_SPINLOCK(clklock); + +static void __init h8300_div_clk_setup(struct device_node *node) +{ + unsigned int num_parents; + struct clk *clk; + const char *clk_name = node->name; + const char *parent_name; + void __iomem *divcr = NULL; + int width; + + num_parents = of_clk_get_parent_count(node); + if (num_parents < 1) { + pr_err("%s: no parent found", clk_name); + return; + } + + divcr = of_iomap(node, 0); + if (divcr == NULL) { + pr_err("%s: failed to map divide register", clk_name); + goto error; + } + + parent_name = of_clk_get_parent_name(node, 0); + of_property_read_u32(node, "renesas,width", &width); + clk = clk_register_divider(NULL, clk_name, parent_name, + CLK_SET_RATE_GATE, divcr, 0, width, + CLK_DIVIDER_POWER_OF_TWO, &clklock); + if (!IS_ERR(clk)) { + of_clk_add_provider(node, of_clk_src_simple_get, clk); + return; + } + pr_err("%s: failed to register %s div clock (%ld)\n", + __func__, clk_name, PTR_ERR(clk)); +error: + if (divcr) + iounmap(divcr); +} + +CLK_OF_DECLARE(h8300_div_clk, "renesas,h8300-div-clock", h8300_div_clk_setup); diff --git a/drivers/clk/h8300/clk-h8s2678.c b/drivers/clk/h8300/clk-h8s2678.c new file mode 100644 index 000000000000..4701b093e497 --- /dev/null +++ b/drivers/clk/h8300/clk-h8s2678.c @@ -0,0 +1,146 @@ +/* + * H8S2678 clock driver + * + * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp> + */ + +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/clk-provider.h> +#include <linux/err.h> +#include <linux/device.h> +#include <linux/of_address.h> + +static DEFINE_SPINLOCK(clklock); + +#define MAX_FREQ 33333333 +#define MIN_FREQ 8000000 + +struct pll_clock { + struct clk_hw hw; + void __iomem *sckcr; + void __iomem *pllcr; +}; + +#define to_pll_clock(_hw) container_of(_hw, struct pll_clock, hw) + +static unsigned long pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct pll_clock *pll_clock = to_pll_clock(hw); + int mul = 1 << (ctrl_inb((unsigned long)pll_clock->pllcr) & 3); + + return parent_rate * mul; +} + +static long pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + int i, m = -1; + long offset[3]; + + if (rate > MAX_FREQ) + rate = MAX_FREQ; + if (rate < MIN_FREQ) + rate = MIN_FREQ; + + for (i = 0; i < 3; i++) + offset[i] = abs(rate - (*prate * (1 << i))); + for (i = 0; i < 3; i++) + if (m < 0) + m = i; + else + m = (offset[i] < offset[m])?i:m; + + return *prate * (1 << m); +} + +static int pll_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + int pll; + unsigned char val; + unsigned long flags; + struct pll_clock *pll_clock = to_pll_clock(hw); + + pll = ((rate / parent_rate) / 2) & 0x03; + spin_lock_irqsave(&clklock, flags); + val = ctrl_inb((unsigned long)pll_clock->sckcr); + val |= 0x08; + ctrl_outb(val, (unsigned long)pll_clock->sckcr); + val = ctrl_inb((unsigned long)pll_clock->pllcr); + val &= ~0x03; + val |= pll; + ctrl_outb(val, (unsigned long)pll_clock->pllcr); + spin_unlock_irqrestore(&clklock, flags); + return 0; +} + +static const struct clk_ops pll_ops = { + .recalc_rate = pll_recalc_rate, + .round_rate = pll_round_rate, + .set_rate = pll_set_rate, +}; + +static void __init h8s2678_pll_clk_setup(struct device_node *node) +{ + unsigned int num_parents; + struct clk *clk; + const char *clk_name = node->name; + const char *parent_name; + struct pll_clock *pll_clock; + struct clk_init_data init; + + num_parents = of_clk_get_parent_count(node); + if (num_parents < 1) { + pr_err("%s: no parent found", clk_name); + return; + } + + + pll_clock = kzalloc(sizeof(struct pll_clock), GFP_KERNEL); + if (!pll_clock) { + pr_err("%s: failed to alloc memory", clk_name); + return; + } + + pll_clock->sckcr = of_iomap(node, 0); + if (pll_clock->sckcr == NULL) { + pr_err("%s: failed to map divide register", clk_name); + goto free_clock; + } + + pll_clock->pllcr = of_iomap(node, 1); + if (pll_clock->pllcr == NULL) { + pr_err("%s: failed to map multiply register", clk_name); + goto unmap_sckcr; + } + + parent_name = of_clk_get_parent_name(node, 0); + init.name = clk_name; + init.ops = &pll_ops; + init.flags = CLK_IS_BASIC; + init.parent_names = &parent_name; + init.num_parents = 1; + pll_clock->hw.init = &init; + + clk = clk_register(NULL, &pll_clock->hw); + if (IS_ERR(clk)) { + pr_err("%s: failed to register %s div clock (%ld)\n", + __func__, clk_name, PTR_ERR(clk)); + goto unmap_pllcr; + } + + of_clk_add_provider(node, of_clk_src_simple_get, clk); + return; + +unmap_pllcr: + iounmap(pll_clock->pllcr); +unmap_sckcr: + iounmap(pll_clock->sckcr); +free_clock: + kfree(pll_clock); +} + +CLK_OF_DECLARE(h8s2678_div_clk, "renesas,h8s2678-pll-clock", + h8s2678_pll_clk_setup); diff --git a/drivers/clk/hisilicon/Kconfig b/drivers/clk/hisilicon/Kconfig new file mode 100644 index 000000000000..b4165ba75d9f --- /dev/null +++ b/drivers/clk/hisilicon/Kconfig @@ -0,0 +1,6 @@ +config COMMON_CLK_HI6220 + bool "Hi6220 Clock Driver" + depends on ARCH_HISI || COMPILE_TEST + default ARCH_HISI + help + Build the Hisilicon Hi6220 clock driver based on the common clock framework. diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile index 038c02f4d0e7..48f0116a032a 100644 --- a/drivers/clk/hisilicon/Makefile +++ b/drivers/clk/hisilicon/Makefile @@ -2,8 +2,9 @@ # Hisilicon Clock specific Makefile # -obj-y += clk.o clkgate-separated.o +obj-y += clk.o clkgate-separated.o clkdivider-hi6220.o obj-$(CONFIG_ARCH_HI3xxx) += clk-hi3620.o obj-$(CONFIG_ARCH_HIP04) += clk-hip04.o obj-$(CONFIG_ARCH_HIX5HD2) += clk-hix5hd2.o +obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c index 472dd2cb10b3..715d34a5ef9b 100644 --- a/drivers/clk/hisilicon/clk-hi3620.c +++ b/drivers/clk/hisilicon/clk-hi3620.c @@ -38,44 +38,44 @@ #include "clk.h" /* clock parent list */ -static const char *timer0_mux_p[] __initdata = { "osc32k", "timerclk01", }; -static const char *timer1_mux_p[] __initdata = { "osc32k", "timerclk01", }; -static const char *timer2_mux_p[] __initdata = { "osc32k", "timerclk23", }; -static const char *timer3_mux_p[] __initdata = { "osc32k", "timerclk23", }; -static const char *timer4_mux_p[] __initdata = { "osc32k", "timerclk45", }; -static const char *timer5_mux_p[] __initdata = { "osc32k", "timerclk45", }; -static const char *timer6_mux_p[] __initdata = { "osc32k", "timerclk67", }; -static const char *timer7_mux_p[] __initdata = { "osc32k", "timerclk67", }; -static const char *timer8_mux_p[] __initdata = { "osc32k", "timerclk89", }; -static const char *timer9_mux_p[] __initdata = { "osc32k", "timerclk89", }; -static const char *uart0_mux_p[] __initdata = { "osc26m", "pclk", }; -static const char *uart1_mux_p[] __initdata = { "osc26m", "pclk", }; -static const char *uart2_mux_p[] __initdata = { "osc26m", "pclk", }; -static const char *uart3_mux_p[] __initdata = { "osc26m", "pclk", }; -static const char *uart4_mux_p[] __initdata = { "osc26m", "pclk", }; -static const char *spi0_mux_p[] __initdata = { "osc26m", "rclk_cfgaxi", }; -static const char *spi1_mux_p[] __initdata = { "osc26m", "rclk_cfgaxi", }; -static const char *spi2_mux_p[] __initdata = { "osc26m", "rclk_cfgaxi", }; +static const char *const timer0_mux_p[] __initconst = { "osc32k", "timerclk01", }; +static const char *const timer1_mux_p[] __initconst = { "osc32k", "timerclk01", }; +static const char *const timer2_mux_p[] __initconst = { "osc32k", "timerclk23", }; +static const char *const timer3_mux_p[] __initconst = { "osc32k", "timerclk23", }; +static const char *const timer4_mux_p[] __initconst = { "osc32k", "timerclk45", }; +static const char *const timer5_mux_p[] __initconst = { "osc32k", "timerclk45", }; +static const char *const timer6_mux_p[] __initconst = { "osc32k", "timerclk67", }; +static const char *const timer7_mux_p[] __initconst = { "osc32k", "timerclk67", }; +static const char *const timer8_mux_p[] __initconst = { "osc32k", "timerclk89", }; +static const char *const timer9_mux_p[] __initconst = { "osc32k", "timerclk89", }; +static const char *const uart0_mux_p[] __initconst = { "osc26m", "pclk", }; +static const char *const uart1_mux_p[] __initconst = { "osc26m", "pclk", }; +static const char *const uart2_mux_p[] __initconst = { "osc26m", "pclk", }; +static const char *const uart3_mux_p[] __initconst = { "osc26m", "pclk", }; +static const char *const uart4_mux_p[] __initconst = { "osc26m", "pclk", }; +static const char *const spi0_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", }; +static const char *const spi1_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", }; +static const char *const spi2_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", }; /* share axi parent */ -static const char *saxi_mux_p[] __initdata = { "armpll3", "armpll2", }; -static const char *pwm0_mux_p[] __initdata = { "osc32k", "osc26m", }; -static const char *pwm1_mux_p[] __initdata = { "osc32k", "osc26m", }; -static const char *sd_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *mmc1_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *mmc1_mux2_p[] __initdata = { "osc26m", "mmc1_div", }; -static const char *g2d_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *venc_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *vdec_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *vpp_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *edc0_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *ldi0_mux_p[] __initdata = { "armpll2", "armpll4", +static const char *const saxi_mux_p[] __initconst = { "armpll3", "armpll2", }; +static const char *const pwm0_mux_p[] __initconst = { "osc32k", "osc26m", }; +static const char *const pwm1_mux_p[] __initconst = { "osc32k", "osc26m", }; +static const char *const sd_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *const mmc1_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *const mmc1_mux2_p[] __initconst = { "osc26m", "mmc1_div", }; +static const char *const g2d_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *const venc_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *const vdec_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *const vpp_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *const edc0_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *const ldi0_mux_p[] __initconst = { "armpll2", "armpll4", "armpll3", "armpll5", }; -static const char *edc1_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *ldi1_mux_p[] __initdata = { "armpll2", "armpll4", +static const char *const edc1_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *const ldi1_mux_p[] __initconst = { "armpll2", "armpll4", "armpll3", "armpll5", }; -static const char *rclk_hsic_p[] __initdata = { "armpll3", "armpll2", }; -static const char *mmc2_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *mmc3_mux_p[] __initdata = { "armpll2", "armpll3", }; +static const char *const rclk_hsic_p[] __initconst = { "armpll3", "armpll2", }; +static const char *const mmc2_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *const mmc3_mux_p[] __initconst = { "armpll2", "armpll3", }; /* fixed rate clocks */ diff --git a/drivers/clk/hisilicon/clk-hi6220.c b/drivers/clk/hisilicon/clk-hi6220.c new file mode 100644 index 000000000000..4563343b6420 --- /dev/null +++ b/drivers/clk/hisilicon/clk-hi6220.c @@ -0,0 +1,284 @@ +/* + * Hisilicon Hi6220 clock driver + * + * Copyright (c) 2015 Hisilicon Limited. + * + * Author: Bintian Wang <bintian.wang@huawei.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/slab.h> + +#include <dt-bindings/clock/hi6220-clock.h> + +#include "clk.h" + + +/* clocks in AO (always on) controller */ +static struct hisi_fixed_rate_clock hi6220_fixed_rate_clks[] __initdata = { + { HI6220_REF32K, "ref32k", NULL, CLK_IS_ROOT, 32764, }, + { HI6220_CLK_TCXO, "clk_tcxo", NULL, CLK_IS_ROOT, 19200000, }, + { HI6220_MMC1_PAD, "mmc1_pad", NULL, CLK_IS_ROOT, 100000000, }, + { HI6220_MMC2_PAD, "mmc2_pad", NULL, CLK_IS_ROOT, 100000000, }, + { HI6220_MMC0_PAD, "mmc0_pad", NULL, CLK_IS_ROOT, 200000000, }, + { HI6220_PLL_BBP, "bbppll0", NULL, CLK_IS_ROOT, 245760000, }, + { HI6220_PLL_GPU, "gpupll", NULL, CLK_IS_ROOT, 1000000000,}, + { HI6220_PLL1_DDR, "ddrpll1", NULL, CLK_IS_ROOT, 1066000000,}, + { HI6220_PLL_SYS, "syspll", NULL, CLK_IS_ROOT, 1200000000,}, + { HI6220_PLL_SYS_MEDIA, "media_syspll", NULL, CLK_IS_ROOT, 1200000000,}, + { HI6220_DDR_SRC, "ddr_sel_src", NULL, CLK_IS_ROOT, 1200000000,}, + { HI6220_PLL_MEDIA, "media_pll", NULL, CLK_IS_ROOT, 1440000000,}, + { HI6220_PLL_DDR, "ddrpll0", NULL, CLK_IS_ROOT, 1600000000,}, +}; + +static struct hisi_fixed_factor_clock hi6220_fixed_factor_clks[] __initdata = { + { HI6220_300M, "clk_300m", "syspll", 1, 4, 0, }, + { HI6220_150M, "clk_150m", "clk_300m", 1, 2, 0, }, + { HI6220_PICOPHY_SRC, "picophy_src", "clk_150m", 1, 4, 0, }, + { HI6220_MMC0_SRC_SEL, "mmc0srcsel", "mmc0_sel", 1, 8, 0, }, + { HI6220_MMC1_SRC_SEL, "mmc1srcsel", "mmc1_sel", 1, 8, 0, }, + { HI6220_MMC2_SRC_SEL, "mmc2srcsel", "mmc2_sel", 1, 8, 0, }, + { HI6220_VPU_CODEC, "vpucodec", "codec_jpeg_aclk", 1, 2, 0, }, + { HI6220_MMC0_SMP, "mmc0_sample", "mmc0_sel", 1, 8, 0, }, + { HI6220_MMC1_SMP, "mmc1_sample", "mmc1_sel", 1, 8, 0, }, + { HI6220_MMC2_SMP, "mmc2_sample", "mmc2_sel", 1, 8, 0, }, +}; + +static struct hisi_gate_clock hi6220_separated_gate_clks_ao[] __initdata = { + { HI6220_WDT0_PCLK, "wdt0_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 12, 0, }, + { HI6220_WDT1_PCLK, "wdt1_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 13, 0, }, + { HI6220_WDT2_PCLK, "wdt2_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 14, 0, }, + { HI6220_TIMER0_PCLK, "timer0_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 15, 0, }, + { HI6220_TIMER1_PCLK, "timer1_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 16, 0, }, + { HI6220_TIMER2_PCLK, "timer2_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 17, 0, }, + { HI6220_TIMER3_PCLK, "timer3_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 18, 0, }, + { HI6220_TIMER4_PCLK, "timer4_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 19, 0, }, + { HI6220_TIMER5_PCLK, "timer5_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 20, 0, }, + { HI6220_TIMER6_PCLK, "timer6_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 21, 0, }, + { HI6220_TIMER7_PCLK, "timer7_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 22, 0, }, + { HI6220_TIMER8_PCLK, "timer8_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 23, 0, }, + { HI6220_UART0_PCLK, "uart0_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 24, 0, }, +}; + +static void __init hi6220_clk_ao_init(struct device_node *np) +{ + struct hisi_clock_data *clk_data_ao; + + clk_data_ao = hisi_clk_init(np, HI6220_AO_NR_CLKS); + if (!clk_data_ao) + return; + + hisi_clk_register_fixed_rate(hi6220_fixed_rate_clks, + ARRAY_SIZE(hi6220_fixed_rate_clks), clk_data_ao); + + hisi_clk_register_fixed_factor(hi6220_fixed_factor_clks, + ARRAY_SIZE(hi6220_fixed_factor_clks), clk_data_ao); + + hisi_clk_register_gate_sep(hi6220_separated_gate_clks_ao, + ARRAY_SIZE(hi6220_separated_gate_clks_ao), clk_data_ao); +} +CLK_OF_DECLARE(hi6220_clk_ao, "hisilicon,hi6220-aoctrl", hi6220_clk_ao_init); + + +/* clocks in sysctrl */ +static const char *mmc0_mux0_p[] __initdata = { "pll_ddr_gate", "syspll", }; +static const char *mmc0_mux1_p[] __initdata = { "mmc0_mux0", "pll_media_gate", }; +static const char *mmc0_src_p[] __initdata = { "mmc0srcsel", "mmc0_div", }; +static const char *mmc1_mux0_p[] __initdata = { "pll_ddr_gate", "syspll", }; +static const char *mmc1_mux1_p[] __initdata = { "mmc1_mux0", "pll_media_gate", }; +static const char *mmc1_src_p[] __initdata = { "mmc1srcsel", "mmc1_div", }; +static const char *mmc2_mux0_p[] __initdata = { "pll_ddr_gate", "syspll", }; +static const char *mmc2_mux1_p[] __initdata = { "mmc2_mux0", "pll_media_gate", }; +static const char *mmc2_src_p[] __initdata = { "mmc2srcsel", "mmc2_div", }; +static const char *mmc0_sample_in[] __initdata = { "mmc0_sample", "mmc0_pad", }; +static const char *mmc1_sample_in[] __initdata = { "mmc1_sample", "mmc1_pad", }; +static const char *mmc2_sample_in[] __initdata = { "mmc2_sample", "mmc2_pad", }; +static const char *uart1_src[] __initdata = { "clk_tcxo", "clk_150m", }; +static const char *uart2_src[] __initdata = { "clk_tcxo", "clk_150m", }; +static const char *uart3_src[] __initdata = { "clk_tcxo", "clk_150m", }; +static const char *uart4_src[] __initdata = { "clk_tcxo", "clk_150m", }; +static const char *hifi_src[] __initdata = { "syspll", "pll_media_gate", }; + +static struct hisi_gate_clock hi6220_separated_gate_clks_sys[] __initdata = { + { HI6220_MMC0_CLK, "mmc0_clk", "mmc0_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 0, 0, }, + { HI6220_MMC0_CIUCLK, "mmc0_ciuclk", "mmc0_smp_in", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 0, 0, }, + { HI6220_MMC1_CLK, "mmc1_clk", "mmc1_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 1, 0, }, + { HI6220_MMC1_CIUCLK, "mmc1_ciuclk", "mmc1_smp_in", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 1, 0, }, + { HI6220_MMC2_CLK, "mmc2_clk", "mmc2_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 2, 0, }, + { HI6220_MMC2_CIUCLK, "mmc2_ciuclk", "mmc2_smp_in", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 2, 0, }, + { HI6220_USBOTG_HCLK, "usbotg_hclk", "clk_bus", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 4, 0, }, + { HI6220_CLK_PICOPHY, "clk_picophy", "cs_dapb", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 5, 0, }, + { HI6220_HIFI, "hifi_clk", "hifi_div", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x210, 0, 0, }, + { HI6220_DACODEC_PCLK, "dacodec_pclk", "clk_bus", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x210, 5, 0, }, + { HI6220_EDMAC_ACLK, "edmac_aclk", "clk_bus", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x220, 2, 0, }, + { HI6220_CS_ATB, "cs_atb", "cs_atb_div", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 0, 0, }, + { HI6220_I2C0_CLK, "i2c0_clk", "clk_150m", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 1, 0, }, + { HI6220_I2C1_CLK, "i2c1_clk", "clk_150m", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 2, 0, }, + { HI6220_I2C2_CLK, "i2c2_clk", "clk_150m", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 3, 0, }, + { HI6220_I2C3_CLK, "i2c3_clk", "clk_150m", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 4, 0, }, + { HI6220_UART1_PCLK, "uart1_pclk", "uart1_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 5, 0, }, + { HI6220_UART2_PCLK, "uart2_pclk", "uart2_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 6, 0, }, + { HI6220_UART3_PCLK, "uart3_pclk", "uart3_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 7, 0, }, + { HI6220_UART4_PCLK, "uart4_pclk", "uart4_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 8, 0, }, + { HI6220_SPI_CLK, "spi_clk", "clk_150m", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 9, 0, }, + { HI6220_TSENSOR_CLK, "tsensor_clk", "clk_bus", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 12, 0, }, + { HI6220_MMU_CLK, "mmu_clk", "ddrc_axi1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x240, 11, 0, }, + { HI6220_HIFI_SEL, "hifi_sel", "hifi_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 0, 0, }, + { HI6220_MMC0_SYSPLL, "mmc0_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 1, 0, }, + { HI6220_MMC1_SYSPLL, "mmc1_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 2, 0, }, + { HI6220_MMC2_SYSPLL, "mmc2_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 3, 0, }, + { HI6220_MMC0_SEL, "mmc0_sel", "mmc0_mux1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 6, 0, }, + { HI6220_MMC1_SEL, "mmc1_sel", "mmc1_mux1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 7, 0, }, + { HI6220_BBPPLL_SEL, "bbppll_sel", "pll0_bbp_gate", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 9, 0, }, + { HI6220_MEDIA_PLL_SRC, "media_pll_src", "pll_media_gate", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 10, 0, }, + { HI6220_MMC2_SEL, "mmc2_sel", "mmc2_mux1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 11, 0, }, + { HI6220_CS_ATB_SYSPLL, "cs_atb_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 12, 0, }, +}; + +static struct hisi_mux_clock hi6220_mux_clks_sys[] __initdata = { + { HI6220_MMC0_SRC, "mmc0_src", mmc0_src_p, ARRAY_SIZE(mmc0_src_p), CLK_SET_RATE_PARENT, 0x4, 0, 1, 0, }, + { HI6220_MMC0_SMP_IN, "mmc0_smp_in", mmc0_sample_in, ARRAY_SIZE(mmc0_sample_in), CLK_SET_RATE_PARENT, 0x4, 0, 1, 0, }, + { HI6220_MMC1_SRC, "mmc1_src", mmc1_src_p, ARRAY_SIZE(mmc1_src_p), CLK_SET_RATE_PARENT, 0x4, 2, 1, 0, }, + { HI6220_MMC1_SMP_IN, "mmc1_smp_in", mmc1_sample_in, ARRAY_SIZE(mmc1_sample_in), CLK_SET_RATE_PARENT, 0x4, 2, 1, 0, }, + { HI6220_MMC2_SRC, "mmc2_src", mmc2_src_p, ARRAY_SIZE(mmc2_src_p), CLK_SET_RATE_PARENT, 0x4, 4, 1, 0, }, + { HI6220_MMC2_SMP_IN, "mmc2_smp_in", mmc2_sample_in, ARRAY_SIZE(mmc2_sample_in), CLK_SET_RATE_PARENT, 0x4, 4, 1, 0, }, + { HI6220_HIFI_SRC, "hifi_src", hifi_src, ARRAY_SIZE(hifi_src), CLK_SET_RATE_PARENT, 0x400, 0, 1, CLK_MUX_HIWORD_MASK,}, + { HI6220_UART1_SRC, "uart1_src", uart1_src, ARRAY_SIZE(uart1_src), CLK_SET_RATE_PARENT, 0x400, 1, 1, CLK_MUX_HIWORD_MASK,}, + { HI6220_UART2_SRC, "uart2_src", uart2_src, ARRAY_SIZE(uart2_src), CLK_SET_RATE_PARENT, 0x400, 2, 1, CLK_MUX_HIWORD_MASK,}, + { HI6220_UART3_SRC, "uart3_src", uart3_src, ARRAY_SIZE(uart3_src), CLK_SET_RATE_PARENT, 0x400, 3, 1, CLK_MUX_HIWORD_MASK,}, + { HI6220_UART4_SRC, "uart4_src", uart4_src, ARRAY_SIZE(uart4_src), CLK_SET_RATE_PARENT, 0x400, 4, 1, CLK_MUX_HIWORD_MASK,}, + { HI6220_MMC0_MUX0, "mmc0_mux0", mmc0_mux0_p, ARRAY_SIZE(mmc0_mux0_p), CLK_SET_RATE_PARENT, 0x400, 5, 1, CLK_MUX_HIWORD_MASK,}, + { HI6220_MMC1_MUX0, "mmc1_mux0", mmc1_mux0_p, ARRAY_SIZE(mmc1_mux0_p), CLK_SET_RATE_PARENT, 0x400, 11, 1, CLK_MUX_HIWORD_MASK,}, + { HI6220_MMC2_MUX0, "mmc2_mux0", mmc2_mux0_p, ARRAY_SIZE(mmc2_mux0_p), CLK_SET_RATE_PARENT, 0x400, 12, 1, CLK_MUX_HIWORD_MASK,}, + { HI6220_MMC0_MUX1, "mmc0_mux1", mmc0_mux1_p, ARRAY_SIZE(mmc0_mux1_p), CLK_SET_RATE_PARENT, 0x400, 13, 1, CLK_MUX_HIWORD_MASK,}, + { HI6220_MMC1_MUX1, "mmc1_mux1", mmc1_mux1_p, ARRAY_SIZE(mmc1_mux1_p), CLK_SET_RATE_PARENT, 0x400, 14, 1, CLK_MUX_HIWORD_MASK,}, + { HI6220_MMC2_MUX1, "mmc2_mux1", mmc2_mux1_p, ARRAY_SIZE(mmc2_mux1_p), CLK_SET_RATE_PARENT, 0x400, 15, 1, CLK_MUX_HIWORD_MASK,}, +}; + +static struct hi6220_divider_clock hi6220_div_clks_sys[] __initdata = { + { HI6220_CLK_BUS, "clk_bus", "clk_300m", CLK_SET_RATE_PARENT, 0x490, 0, 4, 7, }, + { HI6220_MMC0_DIV, "mmc0_div", "mmc0_syspll", CLK_SET_RATE_PARENT, 0x494, 0, 6, 7, }, + { HI6220_MMC1_DIV, "mmc1_div", "mmc1_syspll", CLK_SET_RATE_PARENT, 0x498, 0, 6, 7, }, + { HI6220_MMC2_DIV, "mmc2_div", "mmc2_syspll", CLK_SET_RATE_PARENT, 0x49c, 0, 6, 7, }, + { HI6220_HIFI_DIV, "hifi_div", "hifi_sel", CLK_SET_RATE_PARENT, 0x4a0, 0, 4, 7, }, + { HI6220_BBPPLL0_DIV, "bbppll0_div", "bbppll_sel", CLK_SET_RATE_PARENT, 0x4a0, 8, 6, 15,}, + { HI6220_CS_DAPB, "cs_dapb", "picophy_src", CLK_SET_RATE_PARENT, 0x4a0, 24, 2, 31,}, + { HI6220_CS_ATB_DIV, "cs_atb_div", "cs_atb_syspll", CLK_SET_RATE_PARENT, 0x4a4, 0, 4, 7, }, +}; + +static void __init hi6220_clk_sys_init(struct device_node *np) +{ + struct hisi_clock_data *clk_data; + + clk_data = hisi_clk_init(np, HI6220_SYS_NR_CLKS); + if (!clk_data) + return; + + hisi_clk_register_gate_sep(hi6220_separated_gate_clks_sys, + ARRAY_SIZE(hi6220_separated_gate_clks_sys), clk_data); + + hisi_clk_register_mux(hi6220_mux_clks_sys, + ARRAY_SIZE(hi6220_mux_clks_sys), clk_data); + + hi6220_clk_register_divider(hi6220_div_clks_sys, + ARRAY_SIZE(hi6220_div_clks_sys), clk_data); +} +CLK_OF_DECLARE(hi6220_clk_sys, "hisilicon,hi6220-sysctrl", hi6220_clk_sys_init); + + +/* clocks in media controller */ +static const char *clk_1000_1200_src[] __initdata = { "pll_gpu_gate", "media_syspll_src", }; +static const char *clk_1440_1200_src[] __initdata = { "media_syspll_src", "media_pll_src", }; +static const char *clk_1000_1440_src[] __initdata = { "pll_gpu_gate", "media_pll_src", }; + +static struct hisi_gate_clock hi6220_separated_gate_clks_media[] __initdata = { + { HI6220_DSI_PCLK, "dsi_pclk", "vpucodec", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 0, 0, }, + { HI6220_G3D_PCLK, "g3d_pclk", "vpucodec", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 1, 0, }, + { HI6220_ACLK_CODEC_VPU, "aclk_codec_vpu", "ade_core_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 3, 0, }, + { HI6220_ISP_SCLK, "isp_sclk", "isp_sclk_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 5, 0, }, + { HI6220_ADE_CORE, "ade_core", "ade_core_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 6, 0, }, + { HI6220_MED_MMU, "media_mmu", "mmu_clk", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 8, 0, }, + { HI6220_CFG_CSI4PHY, "cfg_csi4phy", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 9, 0, }, + { HI6220_CFG_CSI2PHY, "cfg_csi2phy", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 10, 0, }, + { HI6220_ISP_SCLK_GATE, "isp_sclk_gate", "media_pll_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 11, 0, }, + { HI6220_ISP_SCLK_GATE1, "isp_sclk_gate1", "media_pll_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 12, 0, }, + { HI6220_ADE_CORE_GATE, "ade_core_gate", "media_pll_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 14, 0, }, + { HI6220_CODEC_VPU_GATE, "codec_vpu_gate", "clk_1000_1440", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 15, 0, }, + { HI6220_MED_SYSPLL, "media_syspll_src", "media_syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 17, 0, }, +}; + +static struct hisi_mux_clock hi6220_mux_clks_media[] __initdata = { + { HI6220_1440_1200, "clk_1440_1200", clk_1440_1200_src, ARRAY_SIZE(clk_1440_1200_src), CLK_SET_RATE_PARENT, 0x51c, 0, 1, 0, }, + { HI6220_1000_1200, "clk_1000_1200", clk_1000_1200_src, ARRAY_SIZE(clk_1000_1200_src), CLK_SET_RATE_PARENT, 0x51c, 1, 1, 0, }, + { HI6220_1000_1440, "clk_1000_1440", clk_1000_1440_src, ARRAY_SIZE(clk_1000_1440_src), CLK_SET_RATE_PARENT, 0x51c, 6, 1, 0, }, +}; + +static struct hi6220_divider_clock hi6220_div_clks_media[] __initdata = { + { HI6220_CODEC_JPEG, "codec_jpeg_aclk", "media_pll_src", CLK_SET_RATE_PARENT, 0xcbc, 0, 4, 23, }, + { HI6220_ISP_SCLK_SRC, "isp_sclk_src", "isp_sclk_gate", CLK_SET_RATE_PARENT, 0xcbc, 8, 4, 15, }, + { HI6220_ISP_SCLK1, "isp_sclk1", "isp_sclk_gate1", CLK_SET_RATE_PARENT, 0xcbc, 24, 4, 31, }, + { HI6220_ADE_CORE_SRC, "ade_core_src", "ade_core_gate", CLK_SET_RATE_PARENT, 0xcc0, 16, 3, 23, }, + { HI6220_ADE_PIX_SRC, "ade_pix_src", "clk_1440_1200", CLK_SET_RATE_PARENT, 0xcc0, 24, 6, 31, }, + { HI6220_G3D_CLK, "g3d_clk", "clk_1000_1200", CLK_SET_RATE_PARENT, 0xcc4, 8, 4, 15, }, + { HI6220_CODEC_VPU_SRC, "codec_vpu_src", "codec_vpu_gate", CLK_SET_RATE_PARENT, 0xcc4, 24, 6, 31, }, +}; + +static void __init hi6220_clk_media_init(struct device_node *np) +{ + struct hisi_clock_data *clk_data; + + clk_data = hisi_clk_init(np, HI6220_MEDIA_NR_CLKS); + if (!clk_data) + return; + + hisi_clk_register_gate_sep(hi6220_separated_gate_clks_media, + ARRAY_SIZE(hi6220_separated_gate_clks_media), clk_data); + + hisi_clk_register_mux(hi6220_mux_clks_media, + ARRAY_SIZE(hi6220_mux_clks_media), clk_data); + + hi6220_clk_register_divider(hi6220_div_clks_media, + ARRAY_SIZE(hi6220_div_clks_media), clk_data); +} +CLK_OF_DECLARE(hi6220_clk_media, "hisilicon,hi6220-mediactrl", hi6220_clk_media_init); + + +/* clocks in pmctrl */ +static struct hisi_gate_clock hi6220_gate_clks_power[] __initdata = { + { HI6220_PLL_GPU_GATE, "pll_gpu_gate", "gpupll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x8, 0, 0, }, + { HI6220_PLL1_DDR_GATE, "pll1_ddr_gate", "ddrpll1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x10, 0, 0, }, + { HI6220_PLL_DDR_GATE, "pll_ddr_gate", "ddrpll0", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x18, 0, 0, }, + { HI6220_PLL_MEDIA_GATE, "pll_media_gate", "media_pll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x38, 0, 0, }, + { HI6220_PLL0_BBP_GATE, "pll0_bbp_gate", "bbppll0", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x48, 0, 0, }, +}; + +static struct hi6220_divider_clock hi6220_div_clks_power[] __initdata = { + { HI6220_DDRC_SRC, "ddrc_src", "ddr_sel_src", CLK_SET_RATE_PARENT, 0x5a8, 0, 4, 0, }, + { HI6220_DDRC_AXI1, "ddrc_axi1", "ddrc_src", CLK_SET_RATE_PARENT, 0x5a8, 8, 2, 0, }, +}; + +static void __init hi6220_clk_power_init(struct device_node *np) +{ + struct hisi_clock_data *clk_data; + + clk_data = hisi_clk_init(np, HI6220_POWER_NR_CLKS); + if (!clk_data) + return; + + hisi_clk_register_gate(hi6220_gate_clks_power, + ARRAY_SIZE(hi6220_gate_clks_power), clk_data); + + hi6220_clk_register_divider(hi6220_div_clks_power, + ARRAY_SIZE(hi6220_div_clks_power), clk_data); +} +CLK_OF_DECLARE(hi6220_clk_power, "hisilicon,hi6220-pmctrl", hi6220_clk_power_init); diff --git a/drivers/clk/hisilicon/clk-hix5hd2.c b/drivers/clk/hisilicon/clk-hix5hd2.c index f1d239435826..0aaf29da8491 100644 --- a/drivers/clk/hisilicon/clk-hix5hd2.c +++ b/drivers/clk/hisilicon/clk-hix5hd2.c @@ -46,15 +46,15 @@ static struct hisi_fixed_rate_clock hix5hd2_fixed_rate_clks[] __initdata = { { HIX5HD2_FIXED_83M, "83m", NULL, CLK_IS_ROOT, 83333333, }, }; -static const char *sfc_mux_p[] __initdata = { +static const char *const sfc_mux_p[] __initconst = { "24m", "150m", "200m", "100m", "75m", }; static u32 sfc_mux_table[] = {0, 4, 5, 6, 7}; -static const char *sdio_mux_p[] __initdata = { +static const char *const sdio_mux_p[] __initconst = { "75m", "100m", "50m", "15m", }; static u32 sdio_mux_table[] = {0, 1, 2, 3}; -static const char *fephy_mux_p[] __initdata = { "25m", "125m"}; +static const char *const fephy_mux_p[] __initconst = { "25m", "125m"}; static u32 fephy_mux_table[] = {0, 1}; @@ -252,8 +252,9 @@ static struct clk_ops clk_complex_ops = { .disable = clk_complex_disable, }; -void __init hix5hd2_clk_register_complex(struct hix5hd2_complex_clock *clks, - int nums, struct hisi_clock_data *data) +static void __init +hix5hd2_clk_register_complex(struct hix5hd2_complex_clock *clks, int nums, + struct hisi_clock_data *data) { void __iomem *base = data->base; int i; diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c index a078e84f7b05..c90a89739b03 100644 --- a/drivers/clk/hisilicon/clk.c +++ b/drivers/clk/hisilicon/clk.c @@ -232,3 +232,32 @@ void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *clks, data->clk_data.clks[clks[i].id] = clk; } } + +void __init hi6220_clk_register_divider(struct hi6220_divider_clock *clks, + int nums, struct hisi_clock_data *data) +{ + struct clk *clk; + void __iomem *base = data->base; + int i; + + for (i = 0; i < nums; i++) { + clk = hi6220_register_clkdiv(NULL, clks[i].name, + clks[i].parent_name, + clks[i].flags, + base + clks[i].offset, + clks[i].shift, + clks[i].width, + clks[i].mask_bit, + &hisi_clk_lock); + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, clks[i].name); + continue; + } + + if (clks[i].alias) + clk_register_clkdev(clk, clks[i].alias, NULL); + + data->clk_data.clks[clks[i].id] = clk; + } +} diff --git a/drivers/clk/hisilicon/clk.h b/drivers/clk/hisilicon/clk.h index 31083ffc0650..b56fbc1c5f27 100644 --- a/drivers/clk/hisilicon/clk.h +++ b/drivers/clk/hisilicon/clk.h @@ -55,7 +55,7 @@ struct hisi_fixed_factor_clock { struct hisi_mux_clock { unsigned int id; const char *name; - const char **parent_names; + const char *const *parent_names; u8 num_parents; unsigned long flags; unsigned long offset; @@ -79,6 +79,18 @@ struct hisi_divider_clock { const char *alias; }; +struct hi6220_divider_clock { + unsigned int id; + const char *name; + const char *parent_name; + unsigned long flags; + unsigned long offset; + u8 shift; + u8 width; + u32 mask_bit; + const char *alias; +}; + struct hisi_gate_clock { unsigned int id; const char *name; @@ -94,18 +106,23 @@ struct clk *hisi_register_clkgate_sep(struct device *, const char *, const char *, unsigned long, void __iomem *, u8, u8, spinlock_t *); +struct clk *hi6220_register_clkdiv(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, void __iomem *reg, + u8 shift, u8 width, u32 mask_bit, spinlock_t *lock); -struct hisi_clock_data __init *hisi_clk_init(struct device_node *, int); -void __init hisi_clk_register_fixed_rate(struct hisi_fixed_rate_clock *, - int, struct hisi_clock_data *); -void __init hisi_clk_register_fixed_factor(struct hisi_fixed_factor_clock *, - int, struct hisi_clock_data *); -void __init hisi_clk_register_mux(struct hisi_mux_clock *, int, +struct hisi_clock_data *hisi_clk_init(struct device_node *, int); +void hisi_clk_register_fixed_rate(struct hisi_fixed_rate_clock *, + int, struct hisi_clock_data *); +void hisi_clk_register_fixed_factor(struct hisi_fixed_factor_clock *, + int, struct hisi_clock_data *); +void hisi_clk_register_mux(struct hisi_mux_clock *, int, struct hisi_clock_data *); -void __init hisi_clk_register_divider(struct hisi_divider_clock *, +void hisi_clk_register_divider(struct hisi_divider_clock *, + int, struct hisi_clock_data *); +void hisi_clk_register_gate(struct hisi_gate_clock *, + int, struct hisi_clock_data *); +void hisi_clk_register_gate_sep(struct hisi_gate_clock *, + int, struct hisi_clock_data *); +void hi6220_clk_register_divider(struct hi6220_divider_clock *, int, struct hisi_clock_data *); -void __init hisi_clk_register_gate(struct hisi_gate_clock *, - int, struct hisi_clock_data *); -void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *, - int, struct hisi_clock_data *); #endif /* __HISI_CLK_H */ diff --git a/drivers/clk/hisilicon/clkdivider-hi6220.c b/drivers/clk/hisilicon/clkdivider-hi6220.c new file mode 100644 index 000000000000..113eee8ed23a --- /dev/null +++ b/drivers/clk/hisilicon/clkdivider-hi6220.c @@ -0,0 +1,156 @@ +/* + * Hisilicon hi6220 SoC divider clock driver + * + * Copyright (c) 2015 Hisilicon Limited. + * + * Author: Bintian Wang <bintian.wang@huawei.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/kernel.h> +#include <linux/clk-provider.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/spinlock.h> + +#define div_mask(width) ((1 << (width)) - 1) + +/** + * struct hi6220_clk_divider - divider clock for hi6220 + * + * @hw: handle between common and hardware-specific interfaces + * @reg: register containing divider + * @shift: shift to the divider bit field + * @width: width of the divider bit field + * @mask: mask for setting divider rate + * @table: the div table that the divider supports + * @lock: register lock + */ +struct hi6220_clk_divider { + struct clk_hw hw; + void __iomem *reg; + u8 shift; + u8 width; + u32 mask; + const struct clk_div_table *table; + spinlock_t *lock; +}; + +#define to_hi6220_clk_divider(_hw) \ + container_of(_hw, struct hi6220_clk_divider, hw) + +static unsigned long hi6220_clkdiv_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + unsigned int val; + struct hi6220_clk_divider *dclk = to_hi6220_clk_divider(hw); + + val = readl_relaxed(dclk->reg) >> dclk->shift; + val &= div_mask(dclk->width); + + return divider_recalc_rate(hw, parent_rate, val, dclk->table, + CLK_DIVIDER_ROUND_CLOSEST); +} + +static long hi6220_clkdiv_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct hi6220_clk_divider *dclk = to_hi6220_clk_divider(hw); + + return divider_round_rate(hw, rate, prate, dclk->table, + dclk->width, CLK_DIVIDER_ROUND_CLOSEST); +} + +static int hi6220_clkdiv_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + int value; + unsigned long flags = 0; + u32 data; + struct hi6220_clk_divider *dclk = to_hi6220_clk_divider(hw); + + value = divider_get_val(rate, parent_rate, dclk->table, + dclk->width, CLK_DIVIDER_ROUND_CLOSEST); + + if (dclk->lock) + spin_lock_irqsave(dclk->lock, flags); + + data = readl_relaxed(dclk->reg); + data &= ~(div_mask(dclk->width) << dclk->shift); + data |= value << dclk->shift; + data |= dclk->mask; + + writel_relaxed(data, dclk->reg); + + if (dclk->lock) + spin_unlock_irqrestore(dclk->lock, flags); + + return 0; +} + +static const struct clk_ops hi6220_clkdiv_ops = { + .recalc_rate = hi6220_clkdiv_recalc_rate, + .round_rate = hi6220_clkdiv_round_rate, + .set_rate = hi6220_clkdiv_set_rate, +}; + +struct clk *hi6220_register_clkdiv(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, void __iomem *reg, + u8 shift, u8 width, u32 mask_bit, spinlock_t *lock) +{ + struct hi6220_clk_divider *div; + struct clk *clk; + struct clk_init_data init; + struct clk_div_table *table; + u32 max_div, min_div; + int i; + + /* allocate the divider */ + div = kzalloc(sizeof(*div), GFP_KERNEL); + if (!div) + return ERR_PTR(-ENOMEM); + + /* Init the divider table */ + max_div = div_mask(width) + 1; + min_div = 1; + + table = kcalloc(max_div + 1, sizeof(*table), GFP_KERNEL); + if (!table) { + kfree(div); + return ERR_PTR(-ENOMEM); + } + + for (i = 0; i < max_div; i++) { + table[i].div = min_div + i; + table[i].val = table[i].div - 1; + } + + init.name = name; + init.ops = &hi6220_clkdiv_ops; + init.flags = flags; + init.parent_names = parent_name ? &parent_name : NULL; + init.num_parents = parent_name ? 1 : 0; + + /* struct hi6220_clk_divider assignments */ + div->reg = reg; + div->shift = shift; + div->width = width; + div->mask = mask_bit ? BIT(mask_bit) : 0; + div->lock = lock; + div->hw.init = &init; + div->table = table; + + /* register the clock */ + clk = clk_register(dev, &div->hw); + if (IS_ERR(clk)) { + kfree(table); + kfree(div); + } + + return clk; +} diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile new file mode 100644 index 000000000000..75fae169ce8f --- /dev/null +++ b/drivers/clk/imx/Makefile @@ -0,0 +1,26 @@ + +obj-y += \ + clk.o \ + clk-busy.o \ + clk-cpu.o \ + clk-fixup-div.o \ + clk-fixup-mux.o \ + clk-gate-exclusive.o \ + clk-gate2.o \ + clk-pllv1.o \ + clk-pllv2.o \ + clk-pllv3.o \ + clk-pfd.o + +obj-$(CONFIG_SOC_IMX1) += clk-imx1.o +obj-$(CONFIG_SOC_IMX21) += clk-imx21.o +obj-$(CONFIG_SOC_IMX25) += clk-imx25.o +obj-$(CONFIG_SOC_IMX27) += clk-imx27.o +obj-$(CONFIG_SOC_IMX31) += clk-imx31.o +obj-$(CONFIG_SOC_IMX35) += clk-imx35.o +obj-$(CONFIG_SOC_IMX5) += clk-imx51-imx53.o +obj-$(CONFIG_SOC_IMX6Q) += clk-imx6q.o +obj-$(CONFIG_SOC_IMX6SL) += clk-imx6sl.o +obj-$(CONFIG_SOC_IMX6SX) += clk-imx6sx.o +obj-$(CONFIG_SOC_IMX7D) += clk-imx7d.o +obj-$(CONFIG_SOC_VF610) += clk-vf610.o diff --git a/drivers/clk/imx/clk-busy.c b/drivers/clk/imx/clk-busy.c new file mode 100644 index 000000000000..4bb1bc419b79 --- /dev/null +++ b/drivers/clk/imx/clk-busy.c @@ -0,0 +1,189 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * Copyright 2012 Linaro Ltd. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/err.h> +#include "clk.h" + +static int clk_busy_wait(void __iomem *reg, u8 shift) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(10); + + while (readl_relaxed(reg) & (1 << shift)) + if (time_after(jiffies, timeout)) + return -ETIMEDOUT; + + return 0; +} + +struct clk_busy_divider { + struct clk_divider div; + const struct clk_ops *div_ops; + void __iomem *reg; + u8 shift; +}; + +static inline struct clk_busy_divider *to_clk_busy_divider(struct clk_hw *hw) +{ + struct clk_divider *div = container_of(hw, struct clk_divider, hw); + + return container_of(div, struct clk_busy_divider, div); +} + +static unsigned long clk_busy_divider_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_busy_divider *busy = to_clk_busy_divider(hw); + + return busy->div_ops->recalc_rate(&busy->div.hw, parent_rate); +} + +static long clk_busy_divider_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_busy_divider *busy = to_clk_busy_divider(hw); + + return busy->div_ops->round_rate(&busy->div.hw, rate, prate); +} + +static int clk_busy_divider_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_busy_divider *busy = to_clk_busy_divider(hw); + int ret; + + ret = busy->div_ops->set_rate(&busy->div.hw, rate, parent_rate); + if (!ret) + ret = clk_busy_wait(busy->reg, busy->shift); + + return ret; +} + +static struct clk_ops clk_busy_divider_ops = { + .recalc_rate = clk_busy_divider_recalc_rate, + .round_rate = clk_busy_divider_round_rate, + .set_rate = clk_busy_divider_set_rate, +}; + +struct clk *imx_clk_busy_divider(const char *name, const char *parent_name, + void __iomem *reg, u8 shift, u8 width, + void __iomem *busy_reg, u8 busy_shift) +{ + struct clk_busy_divider *busy; + struct clk *clk; + struct clk_init_data init; + + busy = kzalloc(sizeof(*busy), GFP_KERNEL); + if (!busy) + return ERR_PTR(-ENOMEM); + + busy->reg = busy_reg; + busy->shift = busy_shift; + + busy->div.reg = reg; + busy->div.shift = shift; + busy->div.width = width; + busy->div.lock = &imx_ccm_lock; + busy->div_ops = &clk_divider_ops; + + init.name = name; + init.ops = &clk_busy_divider_ops; + init.flags = CLK_SET_RATE_PARENT; + init.parent_names = &parent_name; + init.num_parents = 1; + + busy->div.hw.init = &init; + + clk = clk_register(NULL, &busy->div.hw); + if (IS_ERR(clk)) + kfree(busy); + + return clk; +} + +struct clk_busy_mux { + struct clk_mux mux; + const struct clk_ops *mux_ops; + void __iomem *reg; + u8 shift; +}; + +static inline struct clk_busy_mux *to_clk_busy_mux(struct clk_hw *hw) +{ + struct clk_mux *mux = container_of(hw, struct clk_mux, hw); + + return container_of(mux, struct clk_busy_mux, mux); +} + +static u8 clk_busy_mux_get_parent(struct clk_hw *hw) +{ + struct clk_busy_mux *busy = to_clk_busy_mux(hw); + + return busy->mux_ops->get_parent(&busy->mux.hw); +} + +static int clk_busy_mux_set_parent(struct clk_hw *hw, u8 index) +{ + struct clk_busy_mux *busy = to_clk_busy_mux(hw); + int ret; + + ret = busy->mux_ops->set_parent(&busy->mux.hw, index); + if (!ret) + ret = clk_busy_wait(busy->reg, busy->shift); + + return ret; +} + +static struct clk_ops clk_busy_mux_ops = { + .get_parent = clk_busy_mux_get_parent, + .set_parent = clk_busy_mux_set_parent, +}; + +struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift, + u8 width, void __iomem *busy_reg, u8 busy_shift, + const char **parent_names, int num_parents) +{ + struct clk_busy_mux *busy; + struct clk *clk; + struct clk_init_data init; + + busy = kzalloc(sizeof(*busy), GFP_KERNEL); + if (!busy) + return ERR_PTR(-ENOMEM); + + busy->reg = busy_reg; + busy->shift = busy_shift; + + busy->mux.reg = reg; + busy->mux.shift = shift; + busy->mux.mask = BIT(width) - 1; + busy->mux.lock = &imx_ccm_lock; + busy->mux_ops = &clk_mux_ops; + + init.name = name; + init.ops = &clk_busy_mux_ops; + init.flags = 0; + init.parent_names = parent_names; + init.num_parents = num_parents; + + busy->mux.hw.init = &init; + + clk = clk_register(NULL, &busy->mux.hw); + if (IS_ERR(clk)) + kfree(busy); + + return clk; +} diff --git a/drivers/clk/imx/clk-cpu.c b/drivers/clk/imx/clk-cpu.c new file mode 100644 index 000000000000..9d46eac87f45 --- /dev/null +++ b/drivers/clk/imx/clk-cpu.c @@ -0,0 +1,108 @@ +/* + * Copyright (c) 2014 Lucas Stach <l.stach@pengutronix.de>, Pengutronix + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/slab.h> +#include "clk.h" + +struct clk_cpu { + struct clk_hw hw; + struct clk *div; + struct clk *mux; + struct clk *pll; + struct clk *step; +}; + +static inline struct clk_cpu *to_clk_cpu(struct clk_hw *hw) +{ + return container_of(hw, struct clk_cpu, hw); +} + +static unsigned long clk_cpu_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_cpu *cpu = to_clk_cpu(hw); + + return clk_get_rate(cpu->div); +} + +static long clk_cpu_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_cpu *cpu = to_clk_cpu(hw); + + return clk_round_rate(cpu->pll, rate); +} + +static int clk_cpu_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_cpu *cpu = to_clk_cpu(hw); + int ret; + + /* switch to PLL bypass clock */ + ret = clk_set_parent(cpu->mux, cpu->step); + if (ret) + return ret; + + /* reprogram PLL */ + ret = clk_set_rate(cpu->pll, rate); + if (ret) { + clk_set_parent(cpu->mux, cpu->pll); + return ret; + } + /* switch back to PLL clock */ + clk_set_parent(cpu->mux, cpu->pll); + + /* Ensure the divider is what we expect */ + clk_set_rate(cpu->div, rate); + + return 0; +} + +static const struct clk_ops clk_cpu_ops = { + .recalc_rate = clk_cpu_recalc_rate, + .round_rate = clk_cpu_round_rate, + .set_rate = clk_cpu_set_rate, +}; + +struct clk *imx_clk_cpu(const char *name, const char *parent_name, + struct clk *div, struct clk *mux, struct clk *pll, + struct clk *step) +{ + struct clk_cpu *cpu; + struct clk *clk; + struct clk_init_data init; + + cpu = kzalloc(sizeof(*cpu), GFP_KERNEL); + if (!cpu) + return ERR_PTR(-ENOMEM); + + cpu->div = div; + cpu->mux = mux; + cpu->pll = pll; + cpu->step = step; + + init.name = name; + init.ops = &clk_cpu_ops; + init.flags = 0; + init.parent_names = &parent_name; + init.num_parents = 1; + + cpu->hw.init = &init; + + clk = clk_register(NULL, &cpu->hw); + if (IS_ERR(clk)) + kfree(cpu); + + return clk; +} diff --git a/drivers/clk/imx/clk-fixup-div.c b/drivers/clk/imx/clk-fixup-div.c new file mode 100644 index 000000000000..21db020b1f2d --- /dev/null +++ b/drivers/clk/imx/clk-fixup-div.c @@ -0,0 +1,129 @@ +/* + * Copyright (C) 2013 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/clk-provider.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/slab.h> +#include "clk.h" + +#define to_clk_div(_hw) container_of(_hw, struct clk_divider, hw) +#define div_mask(d) ((1 << (d->width)) - 1) + +/** + * struct clk_fixup_div - imx integer fixup divider clock + * @divider: the parent class + * @ops: pointer to clk_ops of parent class + * @fixup: a hook to fixup the write value + * + * The imx fixup divider clock is a subclass of basic clk_divider + * with an addtional fixup hook. + */ +struct clk_fixup_div { + struct clk_divider divider; + const struct clk_ops *ops; + void (*fixup)(u32 *val); +}; + +static inline struct clk_fixup_div *to_clk_fixup_div(struct clk_hw *hw) +{ + struct clk_divider *divider = to_clk_div(hw); + + return container_of(divider, struct clk_fixup_div, divider); +} + +static unsigned long clk_fixup_div_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_fixup_div *fixup_div = to_clk_fixup_div(hw); + + return fixup_div->ops->recalc_rate(&fixup_div->divider.hw, parent_rate); +} + +static long clk_fixup_div_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_fixup_div *fixup_div = to_clk_fixup_div(hw); + + return fixup_div->ops->round_rate(&fixup_div->divider.hw, rate, prate); +} + +static int clk_fixup_div_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_fixup_div *fixup_div = to_clk_fixup_div(hw); + struct clk_divider *div = to_clk_div(hw); + unsigned int divider, value; + unsigned long flags = 0; + u32 val; + + divider = parent_rate / rate; + + /* Zero based divider */ + value = divider - 1; + + if (value > div_mask(div)) + value = div_mask(div); + + spin_lock_irqsave(div->lock, flags); + + val = readl(div->reg); + val &= ~(div_mask(div) << div->shift); + val |= value << div->shift; + fixup_div->fixup(&val); + writel(val, div->reg); + + spin_unlock_irqrestore(div->lock, flags); + + return 0; +} + +static const struct clk_ops clk_fixup_div_ops = { + .recalc_rate = clk_fixup_div_recalc_rate, + .round_rate = clk_fixup_div_round_rate, + .set_rate = clk_fixup_div_set_rate, +}; + +struct clk *imx_clk_fixup_divider(const char *name, const char *parent, + void __iomem *reg, u8 shift, u8 width, + void (*fixup)(u32 *val)) +{ + struct clk_fixup_div *fixup_div; + struct clk *clk; + struct clk_init_data init; + + if (!fixup) + return ERR_PTR(-EINVAL); + + fixup_div = kzalloc(sizeof(*fixup_div), GFP_KERNEL); + if (!fixup_div) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = &clk_fixup_div_ops; + init.flags = CLK_SET_RATE_PARENT; + init.parent_names = parent ? &parent : NULL; + init.num_parents = parent ? 1 : 0; + + fixup_div->divider.reg = reg; + fixup_div->divider.shift = shift; + fixup_div->divider.width = width; + fixup_div->divider.lock = &imx_ccm_lock; + fixup_div->divider.hw.init = &init; + fixup_div->ops = &clk_divider_ops; + fixup_div->fixup = fixup; + + clk = clk_register(NULL, &fixup_div->divider.hw); + if (IS_ERR(clk)) + kfree(fixup_div); + + return clk; +} diff --git a/drivers/clk/imx/clk-fixup-mux.c b/drivers/clk/imx/clk-fixup-mux.c new file mode 100644 index 000000000000..0d40b35c557c --- /dev/null +++ b/drivers/clk/imx/clk-fixup-mux.c @@ -0,0 +1,108 @@ +/* + * Copyright (C) 2013 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/clk-provider.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/slab.h> +#include "clk.h" + +#define to_clk_mux(_hw) container_of(_hw, struct clk_mux, hw) + +/** + * struct clk_fixup_mux - imx integer fixup multiplexer clock + * @mux: the parent class + * @ops: pointer to clk_ops of parent class + * @fixup: a hook to fixup the write value + * + * The imx fixup multiplexer clock is a subclass of basic clk_mux + * with an addtional fixup hook. + */ +struct clk_fixup_mux { + struct clk_mux mux; + const struct clk_ops *ops; + void (*fixup)(u32 *val); +}; + +static inline struct clk_fixup_mux *to_clk_fixup_mux(struct clk_hw *hw) +{ + struct clk_mux *mux = to_clk_mux(hw); + + return container_of(mux, struct clk_fixup_mux, mux); +} + +static u8 clk_fixup_mux_get_parent(struct clk_hw *hw) +{ + struct clk_fixup_mux *fixup_mux = to_clk_fixup_mux(hw); + + return fixup_mux->ops->get_parent(&fixup_mux->mux.hw); +} + +static int clk_fixup_mux_set_parent(struct clk_hw *hw, u8 index) +{ + struct clk_fixup_mux *fixup_mux = to_clk_fixup_mux(hw); + struct clk_mux *mux = to_clk_mux(hw); + unsigned long flags = 0; + u32 val; + + spin_lock_irqsave(mux->lock, flags); + + val = readl(mux->reg); + val &= ~(mux->mask << mux->shift); + val |= index << mux->shift; + fixup_mux->fixup(&val); + writel(val, mux->reg); + + spin_unlock_irqrestore(mux->lock, flags); + + return 0; +} + +static const struct clk_ops clk_fixup_mux_ops = { + .get_parent = clk_fixup_mux_get_parent, + .set_parent = clk_fixup_mux_set_parent, +}; + +struct clk *imx_clk_fixup_mux(const char *name, void __iomem *reg, + u8 shift, u8 width, const char **parents, + int num_parents, void (*fixup)(u32 *val)) +{ + struct clk_fixup_mux *fixup_mux; + struct clk *clk; + struct clk_init_data init; + + if (!fixup) + return ERR_PTR(-EINVAL); + + fixup_mux = kzalloc(sizeof(*fixup_mux), GFP_KERNEL); + if (!fixup_mux) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = &clk_fixup_mux_ops; + init.parent_names = parents; + init.num_parents = num_parents; + init.flags = 0; + + fixup_mux->mux.reg = reg; + fixup_mux->mux.shift = shift; + fixup_mux->mux.mask = BIT(width) - 1; + fixup_mux->mux.lock = &imx_ccm_lock; + fixup_mux->mux.hw.init = &init; + fixup_mux->ops = &clk_mux_ops; + fixup_mux->fixup = fixup; + + clk = clk_register(NULL, &fixup_mux->mux.hw); + if (IS_ERR(clk)) + kfree(fixup_mux); + + return clk; +} diff --git a/drivers/clk/imx/clk-gate-exclusive.c b/drivers/clk/imx/clk-gate-exclusive.c new file mode 100644 index 000000000000..c12f5f2e04dc --- /dev/null +++ b/drivers/clk/imx/clk-gate-exclusive.c @@ -0,0 +1,94 @@ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/clk-provider.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/slab.h> +#include "clk.h" + +/** + * struct clk_gate_exclusive - i.MX specific gate clock which is mutually + * exclusive with other gate clocks + * + * @gate: the parent class + * @exclusive_mask: mask of gate bits which are mutually exclusive to this + * gate clock + * + * The imx exclusive gate clock is a subclass of basic clk_gate + * with an addtional mask to indicate which other gate bits in the same + * register is mutually exclusive to this gate clock. + */ +struct clk_gate_exclusive { + struct clk_gate gate; + u32 exclusive_mask; +}; + +static int clk_gate_exclusive_enable(struct clk_hw *hw) +{ + struct clk_gate *gate = container_of(hw, struct clk_gate, hw); + struct clk_gate_exclusive *exgate = container_of(gate, + struct clk_gate_exclusive, gate); + u32 val = readl(gate->reg); + + if (val & exgate->exclusive_mask) + return -EBUSY; + + return clk_gate_ops.enable(hw); +} + +static void clk_gate_exclusive_disable(struct clk_hw *hw) +{ + clk_gate_ops.disable(hw); +} + +static int clk_gate_exclusive_is_enabled(struct clk_hw *hw) +{ + return clk_gate_ops.is_enabled(hw); +} + +static const struct clk_ops clk_gate_exclusive_ops = { + .enable = clk_gate_exclusive_enable, + .disable = clk_gate_exclusive_disable, + .is_enabled = clk_gate_exclusive_is_enabled, +}; + +struct clk *imx_clk_gate_exclusive(const char *name, const char *parent, + void __iomem *reg, u8 shift, u32 exclusive_mask) +{ + struct clk_gate_exclusive *exgate; + struct clk_gate *gate; + struct clk *clk; + struct clk_init_data init; + + if (exclusive_mask == 0) + return ERR_PTR(-EINVAL); + + exgate = kzalloc(sizeof(*exgate), GFP_KERNEL); + if (!exgate) + return ERR_PTR(-ENOMEM); + gate = &exgate->gate; + + init.name = name; + init.ops = &clk_gate_exclusive_ops; + init.flags = CLK_SET_RATE_PARENT; + init.parent_names = parent ? &parent : NULL; + init.num_parents = parent ? 1 : 0; + + gate->reg = reg; + gate->bit_idx = shift; + gate->lock = &imx_ccm_lock; + gate->hw.init = &init; + exgate->exclusive_mask = exclusive_mask; + + clk = clk_register(NULL, &gate->hw); + if (IS_ERR(clk)) + kfree(exgate); + + return clk; +} diff --git a/drivers/clk/imx/clk-gate2.c b/drivers/clk/imx/clk-gate2.c new file mode 100644 index 000000000000..8935bff99fe7 --- /dev/null +++ b/drivers/clk/imx/clk-gate2.c @@ -0,0 +1,160 @@ +/* + * Copyright (C) 2010-2011 Canonical Ltd <jeremy.kerr@canonical.com> + * Copyright (C) 2011-2012 Mike Turquette, Linaro Ltd <mturquette@linaro.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Gated clock implementation + */ + +#include <linux/clk-provider.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/string.h> +#include "clk.h" + +/** + * DOC: basic gatable clock which can gate and ungate it's ouput + * + * Traits of this clock: + * prepare - clk_(un)prepare only ensures parent is (un)prepared + * enable - clk_enable and clk_disable are functional & control gating + * rate - inherits rate from parent. No clk_set_rate support + * parent - fixed parent. No clk_set_parent support + */ + +struct clk_gate2 { + struct clk_hw hw; + void __iomem *reg; + u8 bit_idx; + u8 flags; + spinlock_t *lock; + unsigned int *share_count; +}; + +#define to_clk_gate2(_hw) container_of(_hw, struct clk_gate2, hw) + +static int clk_gate2_enable(struct clk_hw *hw) +{ + struct clk_gate2 *gate = to_clk_gate2(hw); + u32 reg; + unsigned long flags = 0; + + spin_lock_irqsave(gate->lock, flags); + + if (gate->share_count && (*gate->share_count)++ > 0) + goto out; + + reg = readl(gate->reg); + reg |= 3 << gate->bit_idx; + writel(reg, gate->reg); + +out: + spin_unlock_irqrestore(gate->lock, flags); + + return 0; +} + +static void clk_gate2_disable(struct clk_hw *hw) +{ + struct clk_gate2 *gate = to_clk_gate2(hw); + u32 reg; + unsigned long flags = 0; + + spin_lock_irqsave(gate->lock, flags); + + if (gate->share_count) { + if (WARN_ON(*gate->share_count == 0)) + goto out; + else if (--(*gate->share_count) > 0) + goto out; + } + + reg = readl(gate->reg); + reg &= ~(3 << gate->bit_idx); + writel(reg, gate->reg); + +out: + spin_unlock_irqrestore(gate->lock, flags); +} + +static int clk_gate2_reg_is_enabled(void __iomem *reg, u8 bit_idx) +{ + u32 val = readl(reg); + + if (((val >> bit_idx) & 1) == 1) + return 1; + + return 0; +} + +static int clk_gate2_is_enabled(struct clk_hw *hw) +{ + struct clk_gate2 *gate = to_clk_gate2(hw); + + return clk_gate2_reg_is_enabled(gate->reg, gate->bit_idx); +} + +static void clk_gate2_disable_unused(struct clk_hw *hw) +{ + struct clk_gate2 *gate = to_clk_gate2(hw); + unsigned long flags = 0; + u32 reg; + + spin_lock_irqsave(gate->lock, flags); + + if (!gate->share_count || *gate->share_count == 0) { + reg = readl(gate->reg); + reg &= ~(3 << gate->bit_idx); + writel(reg, gate->reg); + } + + spin_unlock_irqrestore(gate->lock, flags); +} + +static struct clk_ops clk_gate2_ops = { + .enable = clk_gate2_enable, + .disable = clk_gate2_disable, + .disable_unused = clk_gate2_disable_unused, + .is_enabled = clk_gate2_is_enabled, +}; + +struct clk *clk_register_gate2(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, + void __iomem *reg, u8 bit_idx, + u8 clk_gate2_flags, spinlock_t *lock, + unsigned int *share_count) +{ + struct clk_gate2 *gate; + struct clk *clk; + struct clk_init_data init; + + gate = kzalloc(sizeof(struct clk_gate2), GFP_KERNEL); + if (!gate) + return ERR_PTR(-ENOMEM); + + /* struct clk_gate2 assignments */ + gate->reg = reg; + gate->bit_idx = bit_idx; + gate->flags = clk_gate2_flags; + gate->lock = lock; + gate->share_count = share_count; + + init.name = name; + init.ops = &clk_gate2_ops; + init.flags = flags; + init.parent_names = parent_name ? &parent_name : NULL; + init.num_parents = parent_name ? 1 : 0; + + gate->hw.init = &init; + + clk = clk_register(dev, &gate->hw); + if (IS_ERR(clk)) + kfree(gate); + + return clk; +} diff --git a/drivers/clk/imx/clk-imx1.c b/drivers/clk/imx/clk-imx1.c new file mode 100644 index 000000000000..c2647fa19f28 --- /dev/null +++ b/drivers/clk/imx/clk-imx1.c @@ -0,0 +1,122 @@ +/* + * Copyright (C) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/clk-provider.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <dt-bindings/clock/imx1-clock.h> +#include <soc/imx/timer.h> +#include <asm/irq.h> + +#include "clk.h" + +#define MX1_CCM_BASE_ADDR 0x0021b000 +#define MX1_TIM1_BASE_ADDR 0x00220000 +#define MX1_TIM1_INT (NR_IRQS_LEGACY + 59) + +static const char *prem_sel_clks[] = { "clk32_premult", "clk16m", }; +static const char *clko_sel_clks[] = { "per1", "hclk", "clk48m", "clk16m", + "prem", "fclk", }; + +static struct clk *clk[IMX1_CLK_MAX]; +static struct clk_onecell_data clk_data; + +static void __iomem *ccm __initdata; +#define CCM_CSCR (ccm + 0x0000) +#define CCM_MPCTL0 (ccm + 0x0004) +#define CCM_SPCTL0 (ccm + 0x000c) +#define CCM_PCDR (ccm + 0x0020) +#define SCM_GCCR (ccm + 0x0810) + +static void __init _mx1_clocks_init(unsigned long fref) +{ + clk[IMX1_CLK_DUMMY] = imx_clk_fixed("dummy", 0); + clk[IMX1_CLK_CLK32] = imx_obtain_fixed_clock("clk32", fref); + clk[IMX1_CLK_CLK16M_EXT] = imx_clk_fixed("clk16m_ext", 16000000); + clk[IMX1_CLK_CLK16M] = imx_clk_gate("clk16m", "clk16m_ext", CCM_CSCR, 17); + clk[IMX1_CLK_CLK32_PREMULT] = imx_clk_fixed_factor("clk32_premult", "clk32", 512, 1); + clk[IMX1_CLK_PREM] = imx_clk_mux("prem", CCM_CSCR, 16, 1, prem_sel_clks, ARRAY_SIZE(prem_sel_clks)); + clk[IMX1_CLK_MPLL] = imx_clk_pllv1(IMX_PLLV1_IMX1, "mpll", "clk32_premult", CCM_MPCTL0); + clk[IMX1_CLK_MPLL_GATE] = imx_clk_gate("mpll_gate", "mpll", CCM_CSCR, 0); + clk[IMX1_CLK_SPLL] = imx_clk_pllv1(IMX_PLLV1_IMX1, "spll", "prem", CCM_SPCTL0); + clk[IMX1_CLK_SPLL_GATE] = imx_clk_gate("spll_gate", "spll", CCM_CSCR, 1); + clk[IMX1_CLK_MCU] = imx_clk_divider("mcu", "clk32_premult", CCM_CSCR, 15, 1); + clk[IMX1_CLK_FCLK] = imx_clk_divider("fclk", "mpll_gate", CCM_CSCR, 15, 1); + clk[IMX1_CLK_HCLK] = imx_clk_divider("hclk", "spll_gate", CCM_CSCR, 10, 4); + clk[IMX1_CLK_CLK48M] = imx_clk_divider("clk48m", "spll_gate", CCM_CSCR, 26, 3); + clk[IMX1_CLK_PER1] = imx_clk_divider("per1", "spll_gate", CCM_PCDR, 0, 4); + clk[IMX1_CLK_PER2] = imx_clk_divider("per2", "spll_gate", CCM_PCDR, 4, 4); + clk[IMX1_CLK_PER3] = imx_clk_divider("per3", "spll_gate", CCM_PCDR, 16, 7); + clk[IMX1_CLK_CLKO] = imx_clk_mux("clko", CCM_CSCR, 29, 3, clko_sel_clks, ARRAY_SIZE(clko_sel_clks)); + clk[IMX1_CLK_UART3_GATE] = imx_clk_gate("uart3_gate", "hclk", SCM_GCCR, 6); + clk[IMX1_CLK_SSI2_GATE] = imx_clk_gate("ssi2_gate", "hclk", SCM_GCCR, 5); + clk[IMX1_CLK_BROM_GATE] = imx_clk_gate("brom_gate", "hclk", SCM_GCCR, 4); + clk[IMX1_CLK_DMA_GATE] = imx_clk_gate("dma_gate", "hclk", SCM_GCCR, 3); + clk[IMX1_CLK_CSI_GATE] = imx_clk_gate("csi_gate", "hclk", SCM_GCCR, 2); + clk[IMX1_CLK_MMA_GATE] = imx_clk_gate("mma_gate", "hclk", SCM_GCCR, 1); + clk[IMX1_CLK_USBD_GATE] = imx_clk_gate("usbd_gate", "clk48m", SCM_GCCR, 0); + + imx_check_clocks(clk, ARRAY_SIZE(clk)); +} + +int __init mx1_clocks_init(unsigned long fref) +{ + ccm = ioremap(MX1_CCM_BASE_ADDR, SZ_4K); + BUG_ON(!ccm); + + _mx1_clocks_init(fref); + + clk_register_clkdev(clk[IMX1_CLK_PER1], "per", "imx-gpt.0"); + clk_register_clkdev(clk[IMX1_CLK_HCLK], "ipg", "imx-gpt.0"); + clk_register_clkdev(clk[IMX1_CLK_DMA_GATE], "ahb", "imx1-dma"); + clk_register_clkdev(clk[IMX1_CLK_HCLK], "ipg", "imx1-dma"); + clk_register_clkdev(clk[IMX1_CLK_PER1], "per", "imx1-uart.0"); + clk_register_clkdev(clk[IMX1_CLK_HCLK], "ipg", "imx1-uart.0"); + clk_register_clkdev(clk[IMX1_CLK_PER1], "per", "imx1-uart.1"); + clk_register_clkdev(clk[IMX1_CLK_HCLK], "ipg", "imx1-uart.1"); + clk_register_clkdev(clk[IMX1_CLK_PER1], "per", "imx1-uart.2"); + clk_register_clkdev(clk[IMX1_CLK_UART3_GATE], "ipg", "imx1-uart.2"); + clk_register_clkdev(clk[IMX1_CLK_HCLK], NULL, "imx1-i2c.0"); + clk_register_clkdev(clk[IMX1_CLK_PER2], "per", "imx1-cspi.0"); + clk_register_clkdev(clk[IMX1_CLK_DUMMY], "ipg", "imx1-cspi.0"); + clk_register_clkdev(clk[IMX1_CLK_PER2], "per", "imx1-cspi.1"); + clk_register_clkdev(clk[IMX1_CLK_DUMMY], "ipg", "imx1-cspi.1"); + clk_register_clkdev(clk[IMX1_CLK_PER2], "per", "imx1-fb.0"); + clk_register_clkdev(clk[IMX1_CLK_DUMMY], "ipg", "imx1-fb.0"); + clk_register_clkdev(clk[IMX1_CLK_DUMMY], "ahb", "imx1-fb.0"); + + mxc_timer_init(MX1_TIM1_BASE_ADDR, MX1_TIM1_INT, GPT_TYPE_IMX1); + + return 0; +} + +static void __init mx1_clocks_init_dt(struct device_node *np) +{ + ccm = of_iomap(np, 0); + BUG_ON(!ccm); + + _mx1_clocks_init(32768); + + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); +} +CLK_OF_DECLARE(imx1_ccm, "fsl,imx1-ccm", mx1_clocks_init_dt); diff --git a/drivers/clk/imx/clk-imx21.c b/drivers/clk/imx/clk-imx21.c new file mode 100644 index 000000000000..dba987e3b89f --- /dev/null +++ b/drivers/clk/imx/clk-imx21.c @@ -0,0 +1,175 @@ +/* + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2008 Juergen Beisert, kernel@pengutronix.de + * Copyright 2008 Martin Fuzzey, mfuzzey@gmail.com + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <dt-bindings/clock/imx21-clock.h> +#include <soc/imx/timer.h> +#include <asm/irq.h> + +#include "clk.h" + +#define MX21_CCM_BASE_ADDR 0x10027000 +#define MX21_GPT1_BASE_ADDR 0x10003000 +#define MX21_INT_GPT1 (NR_IRQS_LEGACY + 26) + +static void __iomem *ccm __initdata; + +/* Register offsets */ +#define CCM_CSCR (ccm + 0x00) +#define CCM_MPCTL0 (ccm + 0x04) +#define CCM_SPCTL0 (ccm + 0x0c) +#define CCM_PCDR0 (ccm + 0x18) +#define CCM_PCDR1 (ccm + 0x1c) +#define CCM_PCCR0 (ccm + 0x20) +#define CCM_PCCR1 (ccm + 0x24) + +static const char *mpll_osc_sel_clks[] = { "ckih_gate", "ckih_div1p5", }; +static const char *mpll_sel_clks[] = { "fpm_gate", "mpll_osc_sel", }; +static const char *spll_sel_clks[] = { "fpm_gate", "mpll_osc_sel", }; +static const char *ssi_sel_clks[] = { "spll_gate", "mpll_gate", }; + +static struct clk *clk[IMX21_CLK_MAX]; +static struct clk_onecell_data clk_data; + +static void __init _mx21_clocks_init(unsigned long lref, unsigned long href) +{ + BUG_ON(!ccm); + + clk[IMX21_CLK_DUMMY] = imx_clk_fixed("dummy", 0); + clk[IMX21_CLK_CKIL] = imx_obtain_fixed_clock("ckil", lref); + clk[IMX21_CLK_CKIH] = imx_obtain_fixed_clock("ckih", href); + clk[IMX21_CLK_FPM] = imx_clk_fixed_factor("fpm", "ckil", 512, 1); + clk[IMX21_CLK_CKIH_DIV1P5] = imx_clk_fixed_factor("ckih_div1p5", "ckih_gate", 2, 3); + + clk[IMX21_CLK_MPLL_GATE] = imx_clk_gate("mpll_gate", "mpll", CCM_CSCR, 0); + clk[IMX21_CLK_SPLL_GATE] = imx_clk_gate("spll_gate", "spll", CCM_CSCR, 1); + clk[IMX21_CLK_FPM_GATE] = imx_clk_gate("fpm_gate", "fpm", CCM_CSCR, 2); + clk[IMX21_CLK_CKIH_GATE] = imx_clk_gate_dis("ckih_gate", "ckih", CCM_CSCR, 3); + clk[IMX21_CLK_MPLL_OSC_SEL] = imx_clk_mux("mpll_osc_sel", CCM_CSCR, 4, 1, mpll_osc_sel_clks, ARRAY_SIZE(mpll_osc_sel_clks)); + clk[IMX21_CLK_IPG] = imx_clk_divider("ipg", "hclk", CCM_CSCR, 9, 1); + clk[IMX21_CLK_HCLK] = imx_clk_divider("hclk", "fclk", CCM_CSCR, 10, 4); + clk[IMX21_CLK_MPLL_SEL] = imx_clk_mux("mpll_sel", CCM_CSCR, 16, 1, mpll_sel_clks, ARRAY_SIZE(mpll_sel_clks)); + clk[IMX21_CLK_SPLL_SEL] = imx_clk_mux("spll_sel", CCM_CSCR, 17, 1, spll_sel_clks, ARRAY_SIZE(spll_sel_clks)); + clk[IMX21_CLK_SSI1_SEL] = imx_clk_mux("ssi1_sel", CCM_CSCR, 19, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks)); + clk[IMX21_CLK_SSI2_SEL] = imx_clk_mux("ssi2_sel", CCM_CSCR, 20, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks)); + clk[IMX21_CLK_USB_DIV] = imx_clk_divider("usb_div", "spll_gate", CCM_CSCR, 26, 3); + clk[IMX21_CLK_FCLK] = imx_clk_divider("fclk", "mpll_gate", CCM_CSCR, 29, 3); + + clk[IMX21_CLK_MPLL] = imx_clk_pllv1(IMX_PLLV1_IMX21, "mpll", "mpll_sel", CCM_MPCTL0); + + clk[IMX21_CLK_SPLL] = imx_clk_pllv1(IMX_PLLV1_IMX21, "spll", "spll_sel", CCM_SPCTL0); + + clk[IMX21_CLK_NFC_DIV] = imx_clk_divider("nfc_div", "fclk", CCM_PCDR0, 12, 4); + clk[IMX21_CLK_SSI1_DIV] = imx_clk_divider("ssi1_div", "ssi1_sel", CCM_PCDR0, 16, 6); + clk[IMX21_CLK_SSI2_DIV] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 6); + + clk[IMX21_CLK_PER1] = imx_clk_divider("per1", "mpll_gate", CCM_PCDR1, 0, 6); + clk[IMX21_CLK_PER2] = imx_clk_divider("per2", "mpll_gate", CCM_PCDR1, 8, 6); + clk[IMX21_CLK_PER3] = imx_clk_divider("per3", "mpll_gate", CCM_PCDR1, 16, 6); + clk[IMX21_CLK_PER4] = imx_clk_divider("per4", "mpll_gate", CCM_PCDR1, 24, 6); + + clk[IMX21_CLK_UART1_IPG_GATE] = imx_clk_gate("uart1_ipg_gate", "ipg", CCM_PCCR0, 0); + clk[IMX21_CLK_UART2_IPG_GATE] = imx_clk_gate("uart2_ipg_gate", "ipg", CCM_PCCR0, 1); + clk[IMX21_CLK_UART3_IPG_GATE] = imx_clk_gate("uart3_ipg_gate", "ipg", CCM_PCCR0, 2); + clk[IMX21_CLK_UART4_IPG_GATE] = imx_clk_gate("uart4_ipg_gate", "ipg", CCM_PCCR0, 3); + clk[IMX21_CLK_CSPI1_IPG_GATE] = imx_clk_gate("cspi1_ipg_gate", "ipg", CCM_PCCR0, 4); + clk[IMX21_CLK_CSPI2_IPG_GATE] = imx_clk_gate("cspi2_ipg_gate", "ipg", CCM_PCCR0, 5); + clk[IMX21_CLK_SSI1_GATE] = imx_clk_gate("ssi1_gate", "ipg", CCM_PCCR0, 6); + clk[IMX21_CLK_SSI2_GATE] = imx_clk_gate("ssi2_gate", "ipg", CCM_PCCR0, 7); + clk[IMX21_CLK_SDHC1_IPG_GATE] = imx_clk_gate("sdhc1_ipg_gate", "ipg", CCM_PCCR0, 9); + clk[IMX21_CLK_SDHC2_IPG_GATE] = imx_clk_gate("sdhc2_ipg_gate", "ipg", CCM_PCCR0, 10); + clk[IMX21_CLK_GPIO_GATE] = imx_clk_gate("gpio_gate", "ipg", CCM_PCCR0, 11); + clk[IMX21_CLK_I2C_GATE] = imx_clk_gate("i2c_gate", "ipg", CCM_PCCR0, 12); + clk[IMX21_CLK_DMA_GATE] = imx_clk_gate("dma_gate", "ipg", CCM_PCCR0, 13); + clk[IMX21_CLK_USB_GATE] = imx_clk_gate("usb_gate", "usb_div", CCM_PCCR0, 14); + clk[IMX21_CLK_EMMA_GATE] = imx_clk_gate("emma_gate", "ipg", CCM_PCCR0, 15); + clk[IMX21_CLK_SSI2_BAUD_GATE] = imx_clk_gate("ssi2_baud_gate", "ipg", CCM_PCCR0, 16); + clk[IMX21_CLK_SSI1_BAUD_GATE] = imx_clk_gate("ssi1_baud_gate", "ipg", CCM_PCCR0, 17); + clk[IMX21_CLK_LCDC_IPG_GATE] = imx_clk_gate("lcdc_ipg_gate", "ipg", CCM_PCCR0, 18); + clk[IMX21_CLK_NFC_GATE] = imx_clk_gate("nfc_gate", "nfc_div", CCM_PCCR0, 19); + clk[IMX21_CLK_SLCDC_HCLK_GATE] = imx_clk_gate("slcdc_hclk_gate", "hclk", CCM_PCCR0, 21); + clk[IMX21_CLK_PER4_GATE] = imx_clk_gate("per4_gate", "per4", CCM_PCCR0, 22); + clk[IMX21_CLK_BMI_GATE] = imx_clk_gate("bmi_gate", "hclk", CCM_PCCR0, 23); + clk[IMX21_CLK_USB_HCLK_GATE] = imx_clk_gate("usb_hclk_gate", "hclk", CCM_PCCR0, 24); + clk[IMX21_CLK_SLCDC_GATE] = imx_clk_gate("slcdc_gate", "hclk", CCM_PCCR0, 25); + clk[IMX21_CLK_LCDC_HCLK_GATE] = imx_clk_gate("lcdc_hclk_gate", "hclk", CCM_PCCR0, 26); + clk[IMX21_CLK_EMMA_HCLK_GATE] = imx_clk_gate("emma_hclk_gate", "hclk", CCM_PCCR0, 27); + clk[IMX21_CLK_BROM_GATE] = imx_clk_gate("brom_gate", "hclk", CCM_PCCR0, 28); + clk[IMX21_CLK_DMA_HCLK_GATE] = imx_clk_gate("dma_hclk_gate", "hclk", CCM_PCCR0, 30); + clk[IMX21_CLK_CSI_HCLK_GATE] = imx_clk_gate("csi_hclk_gate", "hclk", CCM_PCCR0, 31); + + clk[IMX21_CLK_CSPI3_IPG_GATE] = imx_clk_gate("cspi3_ipg_gate", "ipg", CCM_PCCR1, 23); + clk[IMX21_CLK_WDOG_GATE] = imx_clk_gate("wdog_gate", "ipg", CCM_PCCR1, 24); + clk[IMX21_CLK_GPT1_IPG_GATE] = imx_clk_gate("gpt1_ipg_gate", "ipg", CCM_PCCR1, 25); + clk[IMX21_CLK_GPT2_IPG_GATE] = imx_clk_gate("gpt2_ipg_gate", "ipg", CCM_PCCR1, 26); + clk[IMX21_CLK_GPT3_IPG_GATE] = imx_clk_gate("gpt3_ipg_gate", "ipg", CCM_PCCR1, 27); + clk[IMX21_CLK_PWM_IPG_GATE] = imx_clk_gate("pwm_ipg_gate", "ipg", CCM_PCCR1, 28); + clk[IMX21_CLK_RTC_GATE] = imx_clk_gate("rtc_gate", "ipg", CCM_PCCR1, 29); + clk[IMX21_CLK_KPP_GATE] = imx_clk_gate("kpp_gate", "ipg", CCM_PCCR1, 30); + clk[IMX21_CLK_OWIRE_GATE] = imx_clk_gate("owire_gate", "ipg", CCM_PCCR1, 31); + + imx_check_clocks(clk, ARRAY_SIZE(clk)); +} + +int __init mx21_clocks_init(unsigned long lref, unsigned long href) +{ + ccm = ioremap(MX21_CCM_BASE_ADDR, SZ_2K); + + _mx21_clocks_init(lref, href); + + clk_register_clkdev(clk[IMX21_CLK_PER1], "per", "imx21-uart.0"); + clk_register_clkdev(clk[IMX21_CLK_UART1_IPG_GATE], "ipg", "imx21-uart.0"); + clk_register_clkdev(clk[IMX21_CLK_PER1], "per", "imx21-uart.1"); + clk_register_clkdev(clk[IMX21_CLK_UART2_IPG_GATE], "ipg", "imx21-uart.1"); + clk_register_clkdev(clk[IMX21_CLK_PER1], "per", "imx21-uart.2"); + clk_register_clkdev(clk[IMX21_CLK_UART3_IPG_GATE], "ipg", "imx21-uart.2"); + clk_register_clkdev(clk[IMX21_CLK_PER1], "per", "imx21-uart.3"); + clk_register_clkdev(clk[IMX21_CLK_UART4_IPG_GATE], "ipg", "imx21-uart.3"); + clk_register_clkdev(clk[IMX21_CLK_GPT1_IPG_GATE], "ipg", "imx-gpt.0"); + clk_register_clkdev(clk[IMX21_CLK_PER1], "per", "imx-gpt.0"); + clk_register_clkdev(clk[IMX21_CLK_PER2], "per", "imx21-cspi.0"); + clk_register_clkdev(clk[IMX21_CLK_CSPI1_IPG_GATE], "ipg", "imx21-cspi.0"); + clk_register_clkdev(clk[IMX21_CLK_PER2], "per", "imx21-cspi.1"); + clk_register_clkdev(clk[IMX21_CLK_CSPI2_IPG_GATE], "ipg", "imx21-cspi.1"); + clk_register_clkdev(clk[IMX21_CLK_PER2], "per", "imx21-cspi.2"); + clk_register_clkdev(clk[IMX21_CLK_CSPI3_IPG_GATE], "ipg", "imx21-cspi.2"); + clk_register_clkdev(clk[IMX21_CLK_PER3], "per", "imx21-fb.0"); + clk_register_clkdev(clk[IMX21_CLK_LCDC_IPG_GATE], "ipg", "imx21-fb.0"); + clk_register_clkdev(clk[IMX21_CLK_LCDC_HCLK_GATE], "ahb", "imx21-fb.0"); + clk_register_clkdev(clk[IMX21_CLK_USB_GATE], "per", "imx21-hcd.0"); + clk_register_clkdev(clk[IMX21_CLK_USB_HCLK_GATE], "ahb", "imx21-hcd.0"); + clk_register_clkdev(clk[IMX21_CLK_NFC_GATE], NULL, "imx21-nand.0"); + clk_register_clkdev(clk[IMX21_CLK_DMA_HCLK_GATE], "ahb", "imx21-dma"); + clk_register_clkdev(clk[IMX21_CLK_DMA_GATE], "ipg", "imx21-dma"); + clk_register_clkdev(clk[IMX21_CLK_WDOG_GATE], NULL, "imx2-wdt.0"); + clk_register_clkdev(clk[IMX21_CLK_I2C_GATE], NULL, "imx21-i2c.0"); + clk_register_clkdev(clk[IMX21_CLK_OWIRE_GATE], NULL, "mxc_w1.0"); + + mxc_timer_init(MX21_GPT1_BASE_ADDR, MX21_INT_GPT1, GPT_TYPE_IMX21); + + return 0; +} + +static void __init mx21_clocks_init_dt(struct device_node *np) +{ + ccm = of_iomap(np, 0); + + _mx21_clocks_init(32768, 26000000); + + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); +} +CLK_OF_DECLARE(imx27_ccm, "fsl,imx21-ccm", mx21_clocks_init_dt); diff --git a/drivers/clk/imx/clk-imx25.c b/drivers/clk/imx/clk-imx25.c new file mode 100644 index 000000000000..ec1a4c1dacf1 --- /dev/null +++ b/drivers/clk/imx/clk-imx25.c @@ -0,0 +1,262 @@ +/* + * Copyright (C) 2009 by Sascha Hauer, Pengutronix + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/clkdev.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> + +#include "clk.h" + +#define CCM_MPCTL 0x00 +#define CCM_UPCTL 0x04 +#define CCM_CCTL 0x08 +#define CCM_CGCR0 0x0C +#define CCM_CGCR1 0x10 +#define CCM_CGCR2 0x14 +#define CCM_PCDR0 0x18 +#define CCM_PCDR1 0x1C +#define CCM_PCDR2 0x20 +#define CCM_PCDR3 0x24 +#define CCM_RCSR 0x28 +#define CCM_CRDR 0x2C +#define CCM_DCVR0 0x30 +#define CCM_DCVR1 0x34 +#define CCM_DCVR2 0x38 +#define CCM_DCVR3 0x3c +#define CCM_LTR0 0x40 +#define CCM_LTR1 0x44 +#define CCM_LTR2 0x48 +#define CCM_LTR3 0x4c +#define CCM_MCR 0x64 + +#define ccm(x) (ccm_base + (x)) + +static struct clk_onecell_data clk_data; + +static const char *cpu_sel_clks[] = { "mpll", "mpll_cpu_3_4", }; +static const char *per_sel_clks[] = { "ahb", "upll", }; +static const char *cko_sel_clks[] = { "dummy", "osc", "cpu", "ahb", + "ipg", "dummy", "dummy", "dummy", + "dummy", "dummy", "per0", "per2", + "per13", "per14", "usbotg_ahb", "dummy",}; + +enum mx25_clks { + dummy, osc, mpll, upll, mpll_cpu_3_4, cpu_sel, cpu, ahb, usb_div, ipg, + per0_sel, per1_sel, per2_sel, per3_sel, per4_sel, per5_sel, per6_sel, + per7_sel, per8_sel, per9_sel, per10_sel, per11_sel, per12_sel, + per13_sel, per14_sel, per15_sel, per0, per1, per2, per3, per4, per5, + per6, per7, per8, per9, per10, per11, per12, per13, per14, per15, + csi_ipg_per, epit_ipg_per, esai_ipg_per, esdhc1_ipg_per, esdhc2_ipg_per, + gpt_ipg_per, i2c_ipg_per, lcdc_ipg_per, nfc_ipg_per, owire_ipg_per, + pwm_ipg_per, sim1_ipg_per, sim2_ipg_per, ssi1_ipg_per, ssi2_ipg_per, + uart_ipg_per, ata_ahb, reserved1, csi_ahb, emi_ahb, esai_ahb, esdhc1_ahb, + esdhc2_ahb, fec_ahb, lcdc_ahb, rtic_ahb, sdma_ahb, slcdc_ahb, usbotg_ahb, + reserved2, reserved3, reserved4, reserved5, can1_ipg, can2_ipg, csi_ipg, + cspi1_ipg, cspi2_ipg, cspi3_ipg, dryice_ipg, ect_ipg, epit1_ipg, epit2_ipg, + reserved6, esdhc1_ipg, esdhc2_ipg, fec_ipg, reserved7, reserved8, reserved9, + gpt1_ipg, gpt2_ipg, gpt3_ipg, gpt4_ipg, reserved10, reserved11, reserved12, + iim_ipg, reserved13, reserved14, kpp_ipg, lcdc_ipg, reserved15, pwm1_ipg, + pwm2_ipg, pwm3_ipg, pwm4_ipg, rngb_ipg, reserved16, scc_ipg, sdma_ipg, + sim1_ipg, sim2_ipg, slcdc_ipg, spba_ipg, ssi1_ipg, ssi2_ipg, tsc_ipg, + uart1_ipg, uart2_ipg, uart3_ipg, uart4_ipg, uart5_ipg, reserved17, + wdt_ipg, cko_div, cko_sel, cko, clk_max +}; + +static struct clk *clk[clk_max]; + +static int __init __mx25_clocks_init(unsigned long osc_rate, + void __iomem *ccm_base) +{ + BUG_ON(!ccm_base); + + clk[dummy] = imx_clk_fixed("dummy", 0); + clk[osc] = imx_clk_fixed("osc", osc_rate); + clk[mpll] = imx_clk_pllv1(IMX_PLLV1_IMX25, "mpll", "osc", ccm(CCM_MPCTL)); + clk[upll] = imx_clk_pllv1(IMX_PLLV1_IMX25, "upll", "osc", ccm(CCM_UPCTL)); + clk[mpll_cpu_3_4] = imx_clk_fixed_factor("mpll_cpu_3_4", "mpll", 3, 4); + clk[cpu_sel] = imx_clk_mux("cpu_sel", ccm(CCM_CCTL), 14, 1, cpu_sel_clks, ARRAY_SIZE(cpu_sel_clks)); + clk[cpu] = imx_clk_divider("cpu", "cpu_sel", ccm(CCM_CCTL), 30, 2); + clk[ahb] = imx_clk_divider("ahb", "cpu", ccm(CCM_CCTL), 28, 2); + clk[usb_div] = imx_clk_divider("usb_div", "upll", ccm(CCM_CCTL), 16, 6); + clk[ipg] = imx_clk_fixed_factor("ipg", "ahb", 1, 2); + clk[per0_sel] = imx_clk_mux("per0_sel", ccm(CCM_MCR), 0, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per1_sel] = imx_clk_mux("per1_sel", ccm(CCM_MCR), 1, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per2_sel] = imx_clk_mux("per2_sel", ccm(CCM_MCR), 2, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per3_sel] = imx_clk_mux("per3_sel", ccm(CCM_MCR), 3, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per4_sel] = imx_clk_mux("per4_sel", ccm(CCM_MCR), 4, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per5_sel] = imx_clk_mux("per5_sel", ccm(CCM_MCR), 5, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per6_sel] = imx_clk_mux("per6_sel", ccm(CCM_MCR), 6, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per7_sel] = imx_clk_mux("per7_sel", ccm(CCM_MCR), 7, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per8_sel] = imx_clk_mux("per8_sel", ccm(CCM_MCR), 8, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per9_sel] = imx_clk_mux("per9_sel", ccm(CCM_MCR), 9, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per10_sel] = imx_clk_mux("per10_sel", ccm(CCM_MCR), 10, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per11_sel] = imx_clk_mux("per11_sel", ccm(CCM_MCR), 11, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per12_sel] = imx_clk_mux("per12_sel", ccm(CCM_MCR), 12, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per13_sel] = imx_clk_mux("per13_sel", ccm(CCM_MCR), 13, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per14_sel] = imx_clk_mux("per14_sel", ccm(CCM_MCR), 14, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[per15_sel] = imx_clk_mux("per15_sel", ccm(CCM_MCR), 15, 1, per_sel_clks, ARRAY_SIZE(per_sel_clks)); + clk[cko_div] = imx_clk_divider("cko_div", "cko_sel", ccm(CCM_MCR), 24, 6); + clk[cko_sel] = imx_clk_mux("cko_sel", ccm(CCM_MCR), 20, 4, cko_sel_clks, ARRAY_SIZE(cko_sel_clks)); + clk[cko] = imx_clk_gate("cko", "cko_div", ccm(CCM_MCR), 30); + clk[per0] = imx_clk_divider("per0", "per0_sel", ccm(CCM_PCDR0), 0, 6); + clk[per1] = imx_clk_divider("per1", "per1_sel", ccm(CCM_PCDR0), 8, 6); + clk[per2] = imx_clk_divider("per2", "per2_sel", ccm(CCM_PCDR0), 16, 6); + clk[per3] = imx_clk_divider("per3", "per3_sel", ccm(CCM_PCDR0), 24, 6); + clk[per4] = imx_clk_divider("per4", "per4_sel", ccm(CCM_PCDR1), 0, 6); + clk[per5] = imx_clk_divider("per5", "per5_sel", ccm(CCM_PCDR1), 8, 6); + clk[per6] = imx_clk_divider("per6", "per6_sel", ccm(CCM_PCDR1), 16, 6); + clk[per7] = imx_clk_divider("per7", "per7_sel", ccm(CCM_PCDR1), 24, 6); + clk[per8] = imx_clk_divider("per8", "per8_sel", ccm(CCM_PCDR2), 0, 6); + clk[per9] = imx_clk_divider("per9", "per9_sel", ccm(CCM_PCDR2), 8, 6); + clk[per10] = imx_clk_divider("per10", "per10_sel", ccm(CCM_PCDR2), 16, 6); + clk[per11] = imx_clk_divider("per11", "per11_sel", ccm(CCM_PCDR2), 24, 6); + clk[per12] = imx_clk_divider("per12", "per12_sel", ccm(CCM_PCDR3), 0, 6); + clk[per13] = imx_clk_divider("per13", "per13_sel", ccm(CCM_PCDR3), 8, 6); + clk[per14] = imx_clk_divider("per14", "per14_sel", ccm(CCM_PCDR3), 16, 6); + clk[per15] = imx_clk_divider("per15", "per15_sel", ccm(CCM_PCDR3), 24, 6); + clk[csi_ipg_per] = imx_clk_gate("csi_ipg_per", "per0", ccm(CCM_CGCR0), 0); + clk[epit_ipg_per] = imx_clk_gate("epit_ipg_per", "per1", ccm(CCM_CGCR0), 1); + clk[esai_ipg_per] = imx_clk_gate("esai_ipg_per", "per2", ccm(CCM_CGCR0), 2); + clk[esdhc1_ipg_per] = imx_clk_gate("esdhc1_ipg_per", "per3", ccm(CCM_CGCR0), 3); + clk[esdhc2_ipg_per] = imx_clk_gate("esdhc2_ipg_per", "per4", ccm(CCM_CGCR0), 4); + clk[gpt_ipg_per] = imx_clk_gate("gpt_ipg_per", "per5", ccm(CCM_CGCR0), 5); + clk[i2c_ipg_per] = imx_clk_gate("i2c_ipg_per", "per6", ccm(CCM_CGCR0), 6); + clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per7", ccm(CCM_CGCR0), 7); + clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "per8", ccm(CCM_CGCR0), 8); + clk[owire_ipg_per] = imx_clk_gate("owire_ipg_per", "per9", ccm(CCM_CGCR0), 9); + clk[pwm_ipg_per] = imx_clk_gate("pwm_ipg_per", "per10", ccm(CCM_CGCR0), 10); + clk[sim1_ipg_per] = imx_clk_gate("sim1_ipg_per", "per11", ccm(CCM_CGCR0), 11); + clk[sim2_ipg_per] = imx_clk_gate("sim2_ipg_per", "per12", ccm(CCM_CGCR0), 12); + clk[ssi1_ipg_per] = imx_clk_gate("ssi1_ipg_per", "per13", ccm(CCM_CGCR0), 13); + clk[ssi2_ipg_per] = imx_clk_gate("ssi2_ipg_per", "per14", ccm(CCM_CGCR0), 14); + clk[uart_ipg_per] = imx_clk_gate("uart_ipg_per", "per15", ccm(CCM_CGCR0), 15); + clk[ata_ahb] = imx_clk_gate("ata_ahb", "ahb", ccm(CCM_CGCR0), 16); + /* CCM_CGCR0(17): reserved */ + clk[csi_ahb] = imx_clk_gate("csi_ahb", "ahb", ccm(CCM_CGCR0), 18); + clk[emi_ahb] = imx_clk_gate("emi_ahb", "ahb", ccm(CCM_CGCR0), 19); + clk[esai_ahb] = imx_clk_gate("esai_ahb", "ahb", ccm(CCM_CGCR0), 20); + clk[esdhc1_ahb] = imx_clk_gate("esdhc1_ahb", "ahb", ccm(CCM_CGCR0), 21); + clk[esdhc2_ahb] = imx_clk_gate("esdhc2_ahb", "ahb", ccm(CCM_CGCR0), 22); + clk[fec_ahb] = imx_clk_gate("fec_ahb", "ahb", ccm(CCM_CGCR0), 23); + clk[lcdc_ahb] = imx_clk_gate("lcdc_ahb", "ahb", ccm(CCM_CGCR0), 24); + clk[rtic_ahb] = imx_clk_gate("rtic_ahb", "ahb", ccm(CCM_CGCR0), 25); + clk[sdma_ahb] = imx_clk_gate("sdma_ahb", "ahb", ccm(CCM_CGCR0), 26); + clk[slcdc_ahb] = imx_clk_gate("slcdc_ahb", "ahb", ccm(CCM_CGCR0), 27); + clk[usbotg_ahb] = imx_clk_gate("usbotg_ahb", "ahb", ccm(CCM_CGCR0), 28); + /* CCM_CGCR0(29-31): reserved */ + /* CCM_CGCR1(0): reserved in datasheet, used as audmux in FSL kernel */ + clk[can1_ipg] = imx_clk_gate("can1_ipg", "ipg", ccm(CCM_CGCR1), 2); + clk[can2_ipg] = imx_clk_gate("can2_ipg", "ipg", ccm(CCM_CGCR1), 3); + clk[csi_ipg] = imx_clk_gate("csi_ipg", "ipg", ccm(CCM_CGCR1), 4); + clk[cspi1_ipg] = imx_clk_gate("cspi1_ipg", "ipg", ccm(CCM_CGCR1), 5); + clk[cspi2_ipg] = imx_clk_gate("cspi2_ipg", "ipg", ccm(CCM_CGCR1), 6); + clk[cspi3_ipg] = imx_clk_gate("cspi3_ipg", "ipg", ccm(CCM_CGCR1), 7); + clk[dryice_ipg] = imx_clk_gate("dryice_ipg", "ipg", ccm(CCM_CGCR1), 8); + clk[ect_ipg] = imx_clk_gate("ect_ipg", "ipg", ccm(CCM_CGCR1), 9); + clk[epit1_ipg] = imx_clk_gate("epit1_ipg", "ipg", ccm(CCM_CGCR1), 10); + clk[epit2_ipg] = imx_clk_gate("epit2_ipg", "ipg", ccm(CCM_CGCR1), 11); + /* CCM_CGCR1(12): reserved in datasheet, used as esai in FSL kernel */ + clk[esdhc1_ipg] = imx_clk_gate("esdhc1_ipg", "ipg", ccm(CCM_CGCR1), 13); + clk[esdhc2_ipg] = imx_clk_gate("esdhc2_ipg", "ipg", ccm(CCM_CGCR1), 14); + clk[fec_ipg] = imx_clk_gate("fec_ipg", "ipg", ccm(CCM_CGCR1), 15); + /* CCM_CGCR1(16): reserved in datasheet, used as gpio1 in FSL kernel */ + /* CCM_CGCR1(17): reserved in datasheet, used as gpio2 in FSL kernel */ + /* CCM_CGCR1(18): reserved in datasheet, used as gpio3 in FSL kernel */ + clk[gpt1_ipg] = imx_clk_gate("gpt1_ipg", "ipg", ccm(CCM_CGCR1), 19); + clk[gpt2_ipg] = imx_clk_gate("gpt2_ipg", "ipg", ccm(CCM_CGCR1), 20); + clk[gpt3_ipg] = imx_clk_gate("gpt3_ipg", "ipg", ccm(CCM_CGCR1), 21); + clk[gpt4_ipg] = imx_clk_gate("gpt4_ipg", "ipg", ccm(CCM_CGCR1), 22); + /* CCM_CGCR1(23): reserved in datasheet, used as i2c1 in FSL kernel */ + /* CCM_CGCR1(24): reserved in datasheet, used as i2c2 in FSL kernel */ + /* CCM_CGCR1(25): reserved in datasheet, used as i2c3 in FSL kernel */ + clk[iim_ipg] = imx_clk_gate("iim_ipg", "ipg", ccm(CCM_CGCR1), 26); + /* CCM_CGCR1(27): reserved in datasheet, used as iomuxc in FSL kernel */ + /* CCM_CGCR1(28): reserved in datasheet, used as kpp in FSL kernel */ + clk[kpp_ipg] = imx_clk_gate("kpp_ipg", "ipg", ccm(CCM_CGCR1), 28); + clk[lcdc_ipg] = imx_clk_gate("lcdc_ipg", "ipg", ccm(CCM_CGCR1), 29); + /* CCM_CGCR1(30): reserved in datasheet, used as owire in FSL kernel */ + clk[pwm1_ipg] = imx_clk_gate("pwm1_ipg", "ipg", ccm(CCM_CGCR1), 31); + clk[pwm2_ipg] = imx_clk_gate("pwm2_ipg", "ipg", ccm(CCM_CGCR2), 0); + clk[pwm3_ipg] = imx_clk_gate("pwm3_ipg", "ipg", ccm(CCM_CGCR2), 1); + clk[pwm4_ipg] = imx_clk_gate("pwm4_ipg", "ipg", ccm(CCM_CGCR2), 2); + clk[rngb_ipg] = imx_clk_gate("rngb_ipg", "ipg", ccm(CCM_CGCR2), 3); + /* CCM_CGCR2(4): reserved in datasheet, used as rtic in FSL kernel */ + clk[scc_ipg] = imx_clk_gate("scc_ipg", "ipg", ccm(CCM_CGCR2), 5); + clk[sdma_ipg] = imx_clk_gate("sdma_ipg", "ipg", ccm(CCM_CGCR2), 6); + clk[sim1_ipg] = imx_clk_gate("sim1_ipg", "ipg", ccm(CCM_CGCR2), 7); + clk[sim2_ipg] = imx_clk_gate("sim2_ipg", "ipg", ccm(CCM_CGCR2), 8); + clk[slcdc_ipg] = imx_clk_gate("slcdc_ipg", "ipg", ccm(CCM_CGCR2), 9); + clk[spba_ipg] = imx_clk_gate("spba_ipg", "ipg", ccm(CCM_CGCR2), 10); + clk[ssi1_ipg] = imx_clk_gate("ssi1_ipg", "ipg", ccm(CCM_CGCR2), 11); + clk[ssi2_ipg] = imx_clk_gate("ssi2_ipg", "ipg", ccm(CCM_CGCR2), 12); + clk[tsc_ipg] = imx_clk_gate("tsc_ipg", "ipg", ccm(CCM_CGCR2), 13); + clk[uart1_ipg] = imx_clk_gate("uart1_ipg", "ipg", ccm(CCM_CGCR2), 14); + clk[uart2_ipg] = imx_clk_gate("uart2_ipg", "ipg", ccm(CCM_CGCR2), 15); + clk[uart3_ipg] = imx_clk_gate("uart3_ipg", "ipg", ccm(CCM_CGCR2), 16); + clk[uart4_ipg] = imx_clk_gate("uart4_ipg", "ipg", ccm(CCM_CGCR2), 17); + clk[uart5_ipg] = imx_clk_gate("uart5_ipg", "ipg", ccm(CCM_CGCR2), 18); + /* CCM_CGCR2(19): reserved in datasheet, but used as wdt in FSL kernel */ + clk[wdt_ipg] = imx_clk_gate("wdt_ipg", "ipg", ccm(CCM_CGCR2), 19); + + imx_check_clocks(clk, ARRAY_SIZE(clk)); + + clk_prepare_enable(clk[emi_ahb]); + + /* Clock source for gpt must be derived from AHB */ + clk_set_parent(clk[per5_sel], clk[ahb]); + + /* + * Let's initially set up CLKO parent as ipg, since this configuration + * is used on some imx25 board designs to clock the audio codec. + */ + clk_set_parent(clk[cko_sel], clk[ipg]); + + return 0; +} + +static void __init mx25_clocks_init_dt(struct device_node *np) +{ + struct device_node *refnp; + unsigned long osc_rate = 24000000; + void __iomem *ccm; + + /* retrieve the freqency of fixed clocks from device tree */ + for_each_compatible_node(refnp, NULL, "fixed-clock") { + u32 rate; + if (of_property_read_u32(refnp, "clock-frequency", &rate)) + continue; + + if (of_device_is_compatible(refnp, "fsl,imx-osc")) + osc_rate = rate; + } + + ccm = of_iomap(np, 0); + __mx25_clocks_init(osc_rate, ccm); + + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); +} +CLK_OF_DECLARE(imx25_ccm, "fsl,imx25-ccm", mx25_clocks_init_dt); diff --git a/drivers/clk/imx/clk-imx27.c b/drivers/clk/imx/clk-imx27.c new file mode 100644 index 000000000000..d9d50d54ef2a --- /dev/null +++ b/drivers/clk/imx/clk-imx27.c @@ -0,0 +1,263 @@ +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <dt-bindings/clock/imx27-clock.h> +#include <soc/imx/revision.h> +#include <soc/imx/timer.h> +#include <asm/irq.h> + +#include "clk.h" + +#define MX27_CCM_BASE_ADDR 0x10027000 +#define MX27_GPT1_BASE_ADDR 0x10003000 +#define MX27_INT_GPT1 (NR_IRQS_LEGACY + 26) + +static void __iomem *ccm __initdata; + +/* Register offsets */ +#define CCM_CSCR (ccm + 0x00) +#define CCM_MPCTL0 (ccm + 0x04) +#define CCM_MPCTL1 (ccm + 0x08) +#define CCM_SPCTL0 (ccm + 0x0c) +#define CCM_SPCTL1 (ccm + 0x10) +#define CCM_PCDR0 (ccm + 0x18) +#define CCM_PCDR1 (ccm + 0x1c) +#define CCM_PCCR0 (ccm + 0x20) +#define CCM_PCCR1 (ccm + 0x24) +#define CCM_CCSR (ccm + 0x28) + +static const char *vpu_sel_clks[] = { "spll", "mpll_main2", }; +static const char *cpu_sel_clks[] = { "mpll_main2", "mpll", }; +static const char *mpll_sel_clks[] = { "fpm", "mpll_osc_sel", }; +static const char *mpll_osc_sel_clks[] = { "ckih_gate", "ckih_div1p5", }; +static const char *clko_sel_clks[] = { + "ckil", "fpm", "ckih_gate", "ckih_gate", + "ckih_gate", "mpll", "spll", "cpu_div", + "ahb", "ipg", "per1_div", "per2_div", + "per3_div", "per4_div", "ssi1_div", "ssi2_div", + "nfc_div", "mshc_div", "vpu_div", "60m", + "32k", "usb_div", "dptc", +}; + +static const char *ssi_sel_clks[] = { "spll_gate", "mpll", }; + +static struct clk *clk[IMX27_CLK_MAX]; +static struct clk_onecell_data clk_data; + +static void __init _mx27_clocks_init(unsigned long fref) +{ + BUG_ON(!ccm); + + clk[IMX27_CLK_DUMMY] = imx_clk_fixed("dummy", 0); + clk[IMX27_CLK_CKIH] = imx_clk_fixed("ckih", fref); + clk[IMX27_CLK_CKIL] = imx_clk_fixed("ckil", 32768); + clk[IMX27_CLK_FPM] = imx_clk_fixed_factor("fpm", "ckil", 1024, 1); + clk[IMX27_CLK_CKIH_DIV1P5] = imx_clk_fixed_factor("ckih_div1p5", "ckih_gate", 2, 3); + clk[IMX27_CLK_CKIH_GATE] = imx_clk_gate_dis("ckih_gate", "ckih", CCM_CSCR, 3); + clk[IMX27_CLK_MPLL_OSC_SEL] = imx_clk_mux("mpll_osc_sel", CCM_CSCR, 4, 1, mpll_osc_sel_clks, ARRAY_SIZE(mpll_osc_sel_clks)); + clk[IMX27_CLK_MPLL_SEL] = imx_clk_mux("mpll_sel", CCM_CSCR, 16, 1, mpll_sel_clks, ARRAY_SIZE(mpll_sel_clks)); + clk[IMX27_CLK_MPLL] = imx_clk_pllv1(IMX_PLLV1_IMX27, "mpll", "mpll_sel", CCM_MPCTL0); + clk[IMX27_CLK_SPLL] = imx_clk_pllv1(IMX_PLLV1_IMX27, "spll", "ckih_gate", CCM_SPCTL0); + clk[IMX27_CLK_SPLL_GATE] = imx_clk_gate("spll_gate", "spll", CCM_CSCR, 1); + clk[IMX27_CLK_MPLL_MAIN2] = imx_clk_fixed_factor("mpll_main2", "mpll", 2, 3); + + if (mx27_revision() >= IMX_CHIP_REVISION_2_0) { + clk[IMX27_CLK_AHB] = imx_clk_divider("ahb", "mpll_main2", CCM_CSCR, 8, 2); + clk[IMX27_CLK_IPG] = imx_clk_fixed_factor("ipg", "ahb", 1, 2); + } else { + clk[IMX27_CLK_AHB] = imx_clk_divider("ahb", "mpll_main2", CCM_CSCR, 9, 4); + clk[IMX27_CLK_IPG] = imx_clk_divider("ipg", "ahb", CCM_CSCR, 8, 1); + } + + clk[IMX27_CLK_MSHC_DIV] = imx_clk_divider("mshc_div", "ahb", CCM_PCDR0, 0, 6); + clk[IMX27_CLK_NFC_DIV] = imx_clk_divider("nfc_div", "ahb", CCM_PCDR0, 6, 4); + clk[IMX27_CLK_PER1_DIV] = imx_clk_divider("per1_div", "mpll_main2", CCM_PCDR1, 0, 6); + clk[IMX27_CLK_PER2_DIV] = imx_clk_divider("per2_div", "mpll_main2", CCM_PCDR1, 8, 6); + clk[IMX27_CLK_PER3_DIV] = imx_clk_divider("per3_div", "mpll_main2", CCM_PCDR1, 16, 6); + clk[IMX27_CLK_PER4_DIV] = imx_clk_divider("per4_div", "mpll_main2", CCM_PCDR1, 24, 6); + clk[IMX27_CLK_VPU_SEL] = imx_clk_mux("vpu_sel", CCM_CSCR, 21, 1, vpu_sel_clks, ARRAY_SIZE(vpu_sel_clks)); + clk[IMX27_CLK_VPU_DIV] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 6); + clk[IMX27_CLK_USB_DIV] = imx_clk_divider("usb_div", "spll_gate", CCM_CSCR, 28, 3); + clk[IMX27_CLK_CPU_SEL] = imx_clk_mux("cpu_sel", CCM_CSCR, 15, 1, cpu_sel_clks, ARRAY_SIZE(cpu_sel_clks)); + clk[IMX27_CLK_CLKO_SEL] = imx_clk_mux("clko_sel", CCM_CCSR, 0, 5, clko_sel_clks, ARRAY_SIZE(clko_sel_clks)); + + if (mx27_revision() >= IMX_CHIP_REVISION_2_0) + clk[IMX27_CLK_CPU_DIV] = imx_clk_divider("cpu_div", "cpu_sel", CCM_CSCR, 12, 2); + else + clk[IMX27_CLK_CPU_DIV] = imx_clk_divider("cpu_div", "cpu_sel", CCM_CSCR, 13, 3); + + clk[IMX27_CLK_CLKO_DIV] = imx_clk_divider("clko_div", "clko_sel", CCM_PCDR0, 22, 3); + clk[IMX27_CLK_SSI1_SEL] = imx_clk_mux("ssi1_sel", CCM_CSCR, 22, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks)); + clk[IMX27_CLK_SSI2_SEL] = imx_clk_mux("ssi2_sel", CCM_CSCR, 23, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks)); + clk[IMX27_CLK_SSI1_DIV] = imx_clk_divider("ssi1_div", "ssi1_sel", CCM_PCDR0, 16, 6); + clk[IMX27_CLK_SSI2_DIV] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 6); + clk[IMX27_CLK_CLKO_EN] = imx_clk_gate("clko_en", "clko_div", CCM_PCCR0, 0); + clk[IMX27_CLK_SSI2_IPG_GATE] = imx_clk_gate("ssi2_ipg_gate", "ipg", CCM_PCCR0, 0); + clk[IMX27_CLK_SSI1_IPG_GATE] = imx_clk_gate("ssi1_ipg_gate", "ipg", CCM_PCCR0, 1); + clk[IMX27_CLK_SLCDC_IPG_GATE] = imx_clk_gate("slcdc_ipg_gate", "ipg", CCM_PCCR0, 2); + clk[IMX27_CLK_SDHC3_IPG_GATE] = imx_clk_gate("sdhc3_ipg_gate", "ipg", CCM_PCCR0, 3); + clk[IMX27_CLK_SDHC2_IPG_GATE] = imx_clk_gate("sdhc2_ipg_gate", "ipg", CCM_PCCR0, 4); + clk[IMX27_CLK_SDHC1_IPG_GATE] = imx_clk_gate("sdhc1_ipg_gate", "ipg", CCM_PCCR0, 5); + clk[IMX27_CLK_SCC_IPG_GATE] = imx_clk_gate("scc_ipg_gate", "ipg", CCM_PCCR0, 6); + clk[IMX27_CLK_SAHARA_IPG_GATE] = imx_clk_gate("sahara_ipg_gate", "ipg", CCM_PCCR0, 7); + clk[IMX27_CLK_RTIC_IPG_GATE] = imx_clk_gate("rtic_ipg_gate", "ipg", CCM_PCCR0, 8); + clk[IMX27_CLK_RTC_IPG_GATE] = imx_clk_gate("rtc_ipg_gate", "ipg", CCM_PCCR0, 9); + clk[IMX27_CLK_PWM_IPG_GATE] = imx_clk_gate("pwm_ipg_gate", "ipg", CCM_PCCR0, 11); + clk[IMX27_CLK_OWIRE_IPG_GATE] = imx_clk_gate("owire_ipg_gate", "ipg", CCM_PCCR0, 12); + clk[IMX27_CLK_MSHC_IPG_GATE] = imx_clk_gate("mshc_ipg_gate", "ipg", CCM_PCCR0, 13); + clk[IMX27_CLK_LCDC_IPG_GATE] = imx_clk_gate("lcdc_ipg_gate", "ipg", CCM_PCCR0, 14); + clk[IMX27_CLK_KPP_IPG_GATE] = imx_clk_gate("kpp_ipg_gate", "ipg", CCM_PCCR0, 15); + clk[IMX27_CLK_IIM_IPG_GATE] = imx_clk_gate("iim_ipg_gate", "ipg", CCM_PCCR0, 16); + clk[IMX27_CLK_I2C2_IPG_GATE] = imx_clk_gate("i2c2_ipg_gate", "ipg", CCM_PCCR0, 17); + clk[IMX27_CLK_I2C1_IPG_GATE] = imx_clk_gate("i2c1_ipg_gate", "ipg", CCM_PCCR0, 18); + clk[IMX27_CLK_GPT6_IPG_GATE] = imx_clk_gate("gpt6_ipg_gate", "ipg", CCM_PCCR0, 19); + clk[IMX27_CLK_GPT5_IPG_GATE] = imx_clk_gate("gpt5_ipg_gate", "ipg", CCM_PCCR0, 20); + clk[IMX27_CLK_GPT4_IPG_GATE] = imx_clk_gate("gpt4_ipg_gate", "ipg", CCM_PCCR0, 21); + clk[IMX27_CLK_GPT3_IPG_GATE] = imx_clk_gate("gpt3_ipg_gate", "ipg", CCM_PCCR0, 22); + clk[IMX27_CLK_GPT2_IPG_GATE] = imx_clk_gate("gpt2_ipg_gate", "ipg", CCM_PCCR0, 23); + clk[IMX27_CLK_GPT1_IPG_GATE] = imx_clk_gate("gpt1_ipg_gate", "ipg", CCM_PCCR0, 24); + clk[IMX27_CLK_GPIO_IPG_GATE] = imx_clk_gate("gpio_ipg_gate", "ipg", CCM_PCCR0, 25); + clk[IMX27_CLK_FEC_IPG_GATE] = imx_clk_gate("fec_ipg_gate", "ipg", CCM_PCCR0, 26); + clk[IMX27_CLK_EMMA_IPG_GATE] = imx_clk_gate("emma_ipg_gate", "ipg", CCM_PCCR0, 27); + clk[IMX27_CLK_DMA_IPG_GATE] = imx_clk_gate("dma_ipg_gate", "ipg", CCM_PCCR0, 28); + clk[IMX27_CLK_CSPI3_IPG_GATE] = imx_clk_gate("cspi3_ipg_gate", "ipg", CCM_PCCR0, 29); + clk[IMX27_CLK_CSPI2_IPG_GATE] = imx_clk_gate("cspi2_ipg_gate", "ipg", CCM_PCCR0, 30); + clk[IMX27_CLK_CSPI1_IPG_GATE] = imx_clk_gate("cspi1_ipg_gate", "ipg", CCM_PCCR0, 31); + clk[IMX27_CLK_MSHC_BAUD_GATE] = imx_clk_gate("mshc_baud_gate", "mshc_div", CCM_PCCR1, 2); + clk[IMX27_CLK_NFC_BAUD_GATE] = imx_clk_gate("nfc_baud_gate", "nfc_div", CCM_PCCR1, 3); + clk[IMX27_CLK_SSI2_BAUD_GATE] = imx_clk_gate("ssi2_baud_gate", "ssi2_div", CCM_PCCR1, 4); + clk[IMX27_CLK_SSI1_BAUD_GATE] = imx_clk_gate("ssi1_baud_gate", "ssi1_div", CCM_PCCR1, 5); + clk[IMX27_CLK_VPU_BAUD_GATE] = imx_clk_gate("vpu_baud_gate", "vpu_div", CCM_PCCR1, 6); + clk[IMX27_CLK_PER4_GATE] = imx_clk_gate("per4_gate", "per4_div", CCM_PCCR1, 7); + clk[IMX27_CLK_PER3_GATE] = imx_clk_gate("per3_gate", "per3_div", CCM_PCCR1, 8); + clk[IMX27_CLK_PER2_GATE] = imx_clk_gate("per2_gate", "per2_div", CCM_PCCR1, 9); + clk[IMX27_CLK_PER1_GATE] = imx_clk_gate("per1_gate", "per1_div", CCM_PCCR1, 10); + clk[IMX27_CLK_USB_AHB_GATE] = imx_clk_gate("usb_ahb_gate", "ahb", CCM_PCCR1, 11); + clk[IMX27_CLK_SLCDC_AHB_GATE] = imx_clk_gate("slcdc_ahb_gate", "ahb", CCM_PCCR1, 12); + clk[IMX27_CLK_SAHARA_AHB_GATE] = imx_clk_gate("sahara_ahb_gate", "ahb", CCM_PCCR1, 13); + clk[IMX27_CLK_RTIC_AHB_GATE] = imx_clk_gate("rtic_ahb_gate", "ahb", CCM_PCCR1, 14); + clk[IMX27_CLK_LCDC_AHB_GATE] = imx_clk_gate("lcdc_ahb_gate", "ahb", CCM_PCCR1, 15); + clk[IMX27_CLK_VPU_AHB_GATE] = imx_clk_gate("vpu_ahb_gate", "ahb", CCM_PCCR1, 16); + clk[IMX27_CLK_FEC_AHB_GATE] = imx_clk_gate("fec_ahb_gate", "ahb", CCM_PCCR1, 17); + clk[IMX27_CLK_EMMA_AHB_GATE] = imx_clk_gate("emma_ahb_gate", "ahb", CCM_PCCR1, 18); + clk[IMX27_CLK_EMI_AHB_GATE] = imx_clk_gate("emi_ahb_gate", "ahb", CCM_PCCR1, 19); + clk[IMX27_CLK_DMA_AHB_GATE] = imx_clk_gate("dma_ahb_gate", "ahb", CCM_PCCR1, 20); + clk[IMX27_CLK_CSI_AHB_GATE] = imx_clk_gate("csi_ahb_gate", "ahb", CCM_PCCR1, 21); + clk[IMX27_CLK_BROM_AHB_GATE] = imx_clk_gate("brom_ahb_gate", "ahb", CCM_PCCR1, 22); + clk[IMX27_CLK_ATA_AHB_GATE] = imx_clk_gate("ata_ahb_gate", "ahb", CCM_PCCR1, 23); + clk[IMX27_CLK_WDOG_IPG_GATE] = imx_clk_gate("wdog_ipg_gate", "ipg", CCM_PCCR1, 24); + clk[IMX27_CLK_USB_IPG_GATE] = imx_clk_gate("usb_ipg_gate", "ipg", CCM_PCCR1, 25); + clk[IMX27_CLK_UART6_IPG_GATE] = imx_clk_gate("uart6_ipg_gate", "ipg", CCM_PCCR1, 26); + clk[IMX27_CLK_UART5_IPG_GATE] = imx_clk_gate("uart5_ipg_gate", "ipg", CCM_PCCR1, 27); + clk[IMX27_CLK_UART4_IPG_GATE] = imx_clk_gate("uart4_ipg_gate", "ipg", CCM_PCCR1, 28); + clk[IMX27_CLK_UART3_IPG_GATE] = imx_clk_gate("uart3_ipg_gate", "ipg", CCM_PCCR1, 29); + clk[IMX27_CLK_UART2_IPG_GATE] = imx_clk_gate("uart2_ipg_gate", "ipg", CCM_PCCR1, 30); + clk[IMX27_CLK_UART1_IPG_GATE] = imx_clk_gate("uart1_ipg_gate", "ipg", CCM_PCCR1, 31); + + imx_check_clocks(clk, ARRAY_SIZE(clk)); + + clk_register_clkdev(clk[IMX27_CLK_CPU_DIV], NULL, "cpu0"); + + clk_prepare_enable(clk[IMX27_CLK_EMI_AHB_GATE]); + + imx_print_silicon_rev("i.MX27", mx27_revision()); +} + +int __init mx27_clocks_init(unsigned long fref) +{ + ccm = ioremap(MX27_CCM_BASE_ADDR, SZ_4K); + + _mx27_clocks_init(fref); + + clk_register_clkdev(clk[IMX27_CLK_UART1_IPG_GATE], "ipg", "imx21-uart.0"); + clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.0"); + clk_register_clkdev(clk[IMX27_CLK_UART2_IPG_GATE], "ipg", "imx21-uart.1"); + clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.1"); + clk_register_clkdev(clk[IMX27_CLK_UART3_IPG_GATE], "ipg", "imx21-uart.2"); + clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.2"); + clk_register_clkdev(clk[IMX27_CLK_UART4_IPG_GATE], "ipg", "imx21-uart.3"); + clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.3"); + clk_register_clkdev(clk[IMX27_CLK_UART5_IPG_GATE], "ipg", "imx21-uart.4"); + clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.4"); + clk_register_clkdev(clk[IMX27_CLK_UART6_IPG_GATE], "ipg", "imx21-uart.5"); + clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.5"); + clk_register_clkdev(clk[IMX27_CLK_GPT1_IPG_GATE], "ipg", "imx-gpt.0"); + clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx-gpt.0"); + clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx21-mmc.0"); + clk_register_clkdev(clk[IMX27_CLK_SDHC1_IPG_GATE], "ipg", "imx21-mmc.0"); + clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx21-mmc.1"); + clk_register_clkdev(clk[IMX27_CLK_SDHC2_IPG_GATE], "ipg", "imx21-mmc.1"); + clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx21-mmc.2"); + clk_register_clkdev(clk[IMX27_CLK_SDHC2_IPG_GATE], "ipg", "imx21-mmc.2"); + clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx27-cspi.0"); + clk_register_clkdev(clk[IMX27_CLK_CSPI1_IPG_GATE], "ipg", "imx27-cspi.0"); + clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx27-cspi.1"); + clk_register_clkdev(clk[IMX27_CLK_CSPI2_IPG_GATE], "ipg", "imx27-cspi.1"); + clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx27-cspi.2"); + clk_register_clkdev(clk[IMX27_CLK_CSPI3_IPG_GATE], "ipg", "imx27-cspi.2"); + clk_register_clkdev(clk[IMX27_CLK_PER3_GATE], "per", "imx21-fb.0"); + clk_register_clkdev(clk[IMX27_CLK_LCDC_IPG_GATE], "ipg", "imx21-fb.0"); + clk_register_clkdev(clk[IMX27_CLK_LCDC_AHB_GATE], "ahb", "imx21-fb.0"); + clk_register_clkdev(clk[IMX27_CLK_CSI_AHB_GATE], "ahb", "imx27-camera.0"); + clk_register_clkdev(clk[IMX27_CLK_PER4_GATE], "per", "imx27-camera.0"); + clk_register_clkdev(clk[IMX27_CLK_USB_DIV], "per", "imx-udc-mx27"); + clk_register_clkdev(clk[IMX27_CLK_USB_IPG_GATE], "ipg", "imx-udc-mx27"); + clk_register_clkdev(clk[IMX27_CLK_USB_AHB_GATE], "ahb", "imx-udc-mx27"); + clk_register_clkdev(clk[IMX27_CLK_USB_DIV], "per", "mxc-ehci.0"); + clk_register_clkdev(clk[IMX27_CLK_USB_IPG_GATE], "ipg", "mxc-ehci.0"); + clk_register_clkdev(clk[IMX27_CLK_USB_AHB_GATE], "ahb", "mxc-ehci.0"); + clk_register_clkdev(clk[IMX27_CLK_USB_DIV], "per", "mxc-ehci.1"); + clk_register_clkdev(clk[IMX27_CLK_USB_IPG_GATE], "ipg", "mxc-ehci.1"); + clk_register_clkdev(clk[IMX27_CLK_USB_AHB_GATE], "ahb", "mxc-ehci.1"); + clk_register_clkdev(clk[IMX27_CLK_USB_DIV], "per", "mxc-ehci.2"); + clk_register_clkdev(clk[IMX27_CLK_USB_IPG_GATE], "ipg", "mxc-ehci.2"); + clk_register_clkdev(clk[IMX27_CLK_USB_AHB_GATE], "ahb", "mxc-ehci.2"); + clk_register_clkdev(clk[IMX27_CLK_SSI1_IPG_GATE], NULL, "imx-ssi.0"); + clk_register_clkdev(clk[IMX27_CLK_SSI2_IPG_GATE], NULL, "imx-ssi.1"); + clk_register_clkdev(clk[IMX27_CLK_NFC_BAUD_GATE], NULL, "imx27-nand.0"); + clk_register_clkdev(clk[IMX27_CLK_VPU_BAUD_GATE], "per", "coda-imx27.0"); + clk_register_clkdev(clk[IMX27_CLK_VPU_AHB_GATE], "ahb", "coda-imx27.0"); + clk_register_clkdev(clk[IMX27_CLK_DMA_AHB_GATE], "ahb", "imx27-dma"); + clk_register_clkdev(clk[IMX27_CLK_DMA_IPG_GATE], "ipg", "imx27-dma"); + clk_register_clkdev(clk[IMX27_CLK_FEC_IPG_GATE], "ipg", "imx27-fec.0"); + clk_register_clkdev(clk[IMX27_CLK_FEC_AHB_GATE], "ahb", "imx27-fec.0"); + clk_register_clkdev(clk[IMX27_CLK_WDOG_IPG_GATE], NULL, "imx2-wdt.0"); + clk_register_clkdev(clk[IMX27_CLK_I2C1_IPG_GATE], NULL, "imx21-i2c.0"); + clk_register_clkdev(clk[IMX27_CLK_I2C2_IPG_GATE], NULL, "imx21-i2c.1"); + clk_register_clkdev(clk[IMX27_CLK_OWIRE_IPG_GATE], NULL, "mxc_w1.0"); + clk_register_clkdev(clk[IMX27_CLK_KPP_IPG_GATE], NULL, "imx-keypad"); + clk_register_clkdev(clk[IMX27_CLK_EMMA_AHB_GATE], "emma-ahb", "imx27-camera.0"); + clk_register_clkdev(clk[IMX27_CLK_EMMA_IPG_GATE], "emma-ipg", "imx27-camera.0"); + clk_register_clkdev(clk[IMX27_CLK_EMMA_AHB_GATE], "ahb", "m2m-emmaprp.0"); + clk_register_clkdev(clk[IMX27_CLK_EMMA_IPG_GATE], "ipg", "m2m-emmaprp.0"); + + mxc_timer_init(MX27_GPT1_BASE_ADDR, MX27_INT_GPT1, GPT_TYPE_IMX21); + + return 0; +} + +static void __init mx27_clocks_init_dt(struct device_node *np) +{ + struct device_node *refnp; + u32 fref = 26000000; /* default */ + + for_each_compatible_node(refnp, NULL, "fixed-clock") { + if (!of_device_is_compatible(refnp, "fsl,imx-osc26m")) + continue; + + if (!of_property_read_u32(refnp, "clock-frequency", &fref)) + break; + } + + ccm = of_iomap(np, 0); + + _mx27_clocks_init(fref); + + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); +} +CLK_OF_DECLARE(imx27_ccm, "fsl,imx27-ccm", mx27_clocks_init_dt); diff --git a/drivers/clk/imx/clk-imx31.c b/drivers/clk/imx/clk-imx31.c new file mode 100644 index 000000000000..fe66c40b7be2 --- /dev/null +++ b/drivers/clk/imx/clk-imx31.c @@ -0,0 +1,221 @@ +/* + * Copyright (C) 2012 Sascha Hauer <kernel@pengutronix.de> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation. + */ + +#include <linux/module.h> +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/of.h> +#include <soc/imx/revision.h> +#include <soc/imx/timer.h> +#include <asm/irq.h> + +#include "clk.h" + +#define MX31_CCM_BASE_ADDR 0x53f80000 +#define MX31_GPT1_BASE_ADDR 0x53f90000 +#define MX31_INT_GPT (NR_IRQS_LEGACY + 29) + +#define MXC_CCM_CCMR 0x00 +#define MXC_CCM_PDR0 0x04 +#define MXC_CCM_PDR1 0x08 +#define MXC_CCM_MPCTL 0x10 +#define MXC_CCM_UPCTL 0x14 +#define MXC_CCM_SRPCTL 0x18 +#define MXC_CCM_CGR0 0x20 +#define MXC_CCM_CGR1 0x24 +#define MXC_CCM_CGR2 0x28 +#define MXC_CCM_PMCR0 0x5c + +static const char *mcu_main_sel[] = { "spll", "mpll", }; +static const char *per_sel[] = { "per_div", "ipg", }; +static const char *csi_sel[] = { "upll", "spll", }; +static const char *fir_sel[] = { "mcu_main", "upll", "spll" }; + +enum mx31_clks { + dummy, ckih, ckil, mpll, spll, upll, mcu_main, hsp, ahb, nfc, ipg, + per_div, per, csi, fir, csi_div, usb_div_pre, usb_div_post, fir_div_pre, + fir_div_post, sdhc1_gate, sdhc2_gate, gpt_gate, epit1_gate, epit2_gate, + iim_gate, ata_gate, sdma_gate, cspi3_gate, rng_gate, uart1_gate, + uart2_gate, ssi1_gate, i2c1_gate, i2c2_gate, i2c3_gate, hantro_gate, + mstick1_gate, mstick2_gate, csi_gate, rtc_gate, wdog_gate, pwm_gate, + sim_gate, ect_gate, usb_gate, kpp_gate, ipu_gate, uart3_gate, + uart4_gate, uart5_gate, owire_gate, ssi2_gate, cspi1_gate, cspi2_gate, + gacc_gate, emi_gate, rtic_gate, firi_gate, clk_max +}; + +static struct clk *clk[clk_max]; +static struct clk_onecell_data clk_data; + +int __init mx31_clocks_init(unsigned long fref) +{ + void __iomem *base; + struct device_node *np; + + base = ioremap(MX31_CCM_BASE_ADDR, SZ_4K); + BUG_ON(!base); + + clk[dummy] = imx_clk_fixed("dummy", 0); + clk[ckih] = imx_clk_fixed("ckih", fref); + clk[ckil] = imx_clk_fixed("ckil", 32768); + clk[mpll] = imx_clk_pllv1(IMX_PLLV1_IMX31, "mpll", "ckih", base + MXC_CCM_MPCTL); + clk[spll] = imx_clk_pllv1(IMX_PLLV1_IMX31, "spll", "ckih", base + MXC_CCM_SRPCTL); + clk[upll] = imx_clk_pllv1(IMX_PLLV1_IMX31, "upll", "ckih", base + MXC_CCM_UPCTL); + clk[mcu_main] = imx_clk_mux("mcu_main", base + MXC_CCM_PMCR0, 31, 1, mcu_main_sel, ARRAY_SIZE(mcu_main_sel)); + clk[hsp] = imx_clk_divider("hsp", "mcu_main", base + MXC_CCM_PDR0, 11, 3); + clk[ahb] = imx_clk_divider("ahb", "mcu_main", base + MXC_CCM_PDR0, 3, 3); + clk[nfc] = imx_clk_divider("nfc", "ahb", base + MXC_CCM_PDR0, 8, 3); + clk[ipg] = imx_clk_divider("ipg", "ahb", base + MXC_CCM_PDR0, 6, 2); + clk[per_div] = imx_clk_divider("per_div", "upll", base + MXC_CCM_PDR0, 16, 5); + clk[per] = imx_clk_mux("per", base + MXC_CCM_CCMR, 24, 1, per_sel, ARRAY_SIZE(per_sel)); + clk[csi] = imx_clk_mux("csi_sel", base + MXC_CCM_CCMR, 25, 1, csi_sel, ARRAY_SIZE(csi_sel)); + clk[fir] = imx_clk_mux("fir_sel", base + MXC_CCM_CCMR, 11, 2, fir_sel, ARRAY_SIZE(fir_sel)); + clk[csi_div] = imx_clk_divider("csi_div", "csi_sel", base + MXC_CCM_PDR0, 23, 9); + clk[usb_div_pre] = imx_clk_divider("usb_div_pre", "upll", base + MXC_CCM_PDR1, 30, 2); + clk[usb_div_post] = imx_clk_divider("usb_div_post", "usb_div_pre", base + MXC_CCM_PDR1, 27, 3); + clk[fir_div_pre] = imx_clk_divider("fir_div_pre", "fir_sel", base + MXC_CCM_PDR1, 24, 3); + clk[fir_div_post] = imx_clk_divider("fir_div_post", "fir_div_pre", base + MXC_CCM_PDR1, 23, 6); + clk[sdhc1_gate] = imx_clk_gate2("sdhc1_gate", "per", base + MXC_CCM_CGR0, 0); + clk[sdhc2_gate] = imx_clk_gate2("sdhc2_gate", "per", base + MXC_CCM_CGR0, 2); + clk[gpt_gate] = imx_clk_gate2("gpt_gate", "per", base + MXC_CCM_CGR0, 4); + clk[epit1_gate] = imx_clk_gate2("epit1_gate", "per", base + MXC_CCM_CGR0, 6); + clk[epit2_gate] = imx_clk_gate2("epit2_gate", "per", base + MXC_CCM_CGR0, 8); + clk[iim_gate] = imx_clk_gate2("iim_gate", "ipg", base + MXC_CCM_CGR0, 10); + clk[ata_gate] = imx_clk_gate2("ata_gate", "ipg", base + MXC_CCM_CGR0, 12); + clk[sdma_gate] = imx_clk_gate2("sdma_gate", "ahb", base + MXC_CCM_CGR0, 14); + clk[cspi3_gate] = imx_clk_gate2("cspi3_gate", "ipg", base + MXC_CCM_CGR0, 16); + clk[rng_gate] = imx_clk_gate2("rng_gate", "ipg", base + MXC_CCM_CGR0, 18); + clk[uart1_gate] = imx_clk_gate2("uart1_gate", "per", base + MXC_CCM_CGR0, 20); + clk[uart2_gate] = imx_clk_gate2("uart2_gate", "per", base + MXC_CCM_CGR0, 22); + clk[ssi1_gate] = imx_clk_gate2("ssi1_gate", "spll", base + MXC_CCM_CGR0, 24); + clk[i2c1_gate] = imx_clk_gate2("i2c1_gate", "per", base + MXC_CCM_CGR0, 26); + clk[i2c2_gate] = imx_clk_gate2("i2c2_gate", "per", base + MXC_CCM_CGR0, 28); + clk[i2c3_gate] = imx_clk_gate2("i2c3_gate", "per", base + MXC_CCM_CGR0, 30); + clk[hantro_gate] = imx_clk_gate2("hantro_gate", "per", base + MXC_CCM_CGR1, 0); + clk[mstick1_gate] = imx_clk_gate2("mstick1_gate", "per", base + MXC_CCM_CGR1, 2); + clk[mstick2_gate] = imx_clk_gate2("mstick2_gate", "per", base + MXC_CCM_CGR1, 4); + clk[csi_gate] = imx_clk_gate2("csi_gate", "csi_div", base + MXC_CCM_CGR1, 6); + clk[rtc_gate] = imx_clk_gate2("rtc_gate", "ipg", base + MXC_CCM_CGR1, 8); + clk[wdog_gate] = imx_clk_gate2("wdog_gate", "ipg", base + MXC_CCM_CGR1, 10); + clk[pwm_gate] = imx_clk_gate2("pwm_gate", "per", base + MXC_CCM_CGR1, 12); + clk[sim_gate] = imx_clk_gate2("sim_gate", "per", base + MXC_CCM_CGR1, 14); + clk[ect_gate] = imx_clk_gate2("ect_gate", "per", base + MXC_CCM_CGR1, 16); + clk[usb_gate] = imx_clk_gate2("usb_gate", "ahb", base + MXC_CCM_CGR1, 18); + clk[kpp_gate] = imx_clk_gate2("kpp_gate", "ipg", base + MXC_CCM_CGR1, 20); + clk[ipu_gate] = imx_clk_gate2("ipu_gate", "hsp", base + MXC_CCM_CGR1, 22); + clk[uart3_gate] = imx_clk_gate2("uart3_gate", "per", base + MXC_CCM_CGR1, 24); + clk[uart4_gate] = imx_clk_gate2("uart4_gate", "per", base + MXC_CCM_CGR1, 26); + clk[uart5_gate] = imx_clk_gate2("uart5_gate", "per", base + MXC_CCM_CGR1, 28); + clk[owire_gate] = imx_clk_gate2("owire_gate", "per", base + MXC_CCM_CGR1, 30); + clk[ssi2_gate] = imx_clk_gate2("ssi2_gate", "spll", base + MXC_CCM_CGR2, 0); + clk[cspi1_gate] = imx_clk_gate2("cspi1_gate", "ipg", base + MXC_CCM_CGR2, 2); + clk[cspi2_gate] = imx_clk_gate2("cspi2_gate", "ipg", base + MXC_CCM_CGR2, 4); + clk[gacc_gate] = imx_clk_gate2("gacc_gate", "per", base + MXC_CCM_CGR2, 6); + clk[emi_gate] = imx_clk_gate2("emi_gate", "ahb", base + MXC_CCM_CGR2, 8); + clk[rtic_gate] = imx_clk_gate2("rtic_gate", "ahb", base + MXC_CCM_CGR2, 10); + clk[firi_gate] = imx_clk_gate2("firi_gate", "upll", base+MXC_CCM_CGR2, 12); + + imx_check_clocks(clk, ARRAY_SIZE(clk)); + + np = of_find_compatible_node(NULL, NULL, "fsl,imx31-ccm"); + + if (np) { + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + } + + clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0"); + clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0"); + clk_register_clkdev(clk[cspi1_gate], NULL, "imx31-cspi.0"); + clk_register_clkdev(clk[cspi2_gate], NULL, "imx31-cspi.1"); + clk_register_clkdev(clk[cspi3_gate], NULL, "imx31-cspi.2"); + clk_register_clkdev(clk[pwm_gate], "pwm", NULL); + clk_register_clkdev(clk[wdog_gate], NULL, "imx2-wdt.0"); + clk_register_clkdev(clk[rtc_gate], NULL, "imx21-rtc"); + clk_register_clkdev(clk[epit1_gate], "epit", NULL); + clk_register_clkdev(clk[epit2_gate], "epit", NULL); + clk_register_clkdev(clk[nfc], NULL, "imx27-nand.0"); + clk_register_clkdev(clk[ipu_gate], NULL, "ipu-core"); + clk_register_clkdev(clk[ipu_gate], NULL, "mx3_sdc_fb"); + clk_register_clkdev(clk[kpp_gate], NULL, "imx-keypad"); + clk_register_clkdev(clk[usb_div_post], "per", "mxc-ehci.0"); + clk_register_clkdev(clk[usb_gate], "ahb", "mxc-ehci.0"); + clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.0"); + clk_register_clkdev(clk[usb_div_post], "per", "mxc-ehci.1"); + clk_register_clkdev(clk[usb_gate], "ahb", "mxc-ehci.1"); + clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.1"); + clk_register_clkdev(clk[usb_div_post], "per", "mxc-ehci.2"); + clk_register_clkdev(clk[usb_gate], "ahb", "mxc-ehci.2"); + clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.2"); + clk_register_clkdev(clk[usb_div_post], "per", "imx-udc-mx27"); + clk_register_clkdev(clk[usb_gate], "ahb", "imx-udc-mx27"); + clk_register_clkdev(clk[ipg], "ipg", "imx-udc-mx27"); + clk_register_clkdev(clk[csi_gate], NULL, "mx3-camera.0"); + /* i.mx31 has the i.mx21 type uart */ + clk_register_clkdev(clk[uart1_gate], "per", "imx21-uart.0"); + clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.0"); + clk_register_clkdev(clk[uart2_gate], "per", "imx21-uart.1"); + clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.1"); + clk_register_clkdev(clk[uart3_gate], "per", "imx21-uart.2"); + clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.2"); + clk_register_clkdev(clk[uart4_gate], "per", "imx21-uart.3"); + clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.3"); + clk_register_clkdev(clk[uart5_gate], "per", "imx21-uart.4"); + clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.4"); + clk_register_clkdev(clk[i2c1_gate], NULL, "imx21-i2c.0"); + clk_register_clkdev(clk[i2c2_gate], NULL, "imx21-i2c.1"); + clk_register_clkdev(clk[i2c3_gate], NULL, "imx21-i2c.2"); + clk_register_clkdev(clk[owire_gate], NULL, "mxc_w1.0"); + clk_register_clkdev(clk[sdhc1_gate], NULL, "imx31-mmc.0"); + clk_register_clkdev(clk[sdhc2_gate], NULL, "imx31-mmc.1"); + clk_register_clkdev(clk[ssi1_gate], NULL, "imx-ssi.0"); + clk_register_clkdev(clk[ssi2_gate], NULL, "imx-ssi.1"); + clk_register_clkdev(clk[firi_gate], "firi", NULL); + clk_register_clkdev(clk[ata_gate], NULL, "pata_imx"); + clk_register_clkdev(clk[rtic_gate], "rtic", NULL); + clk_register_clkdev(clk[rng_gate], NULL, "mxc_rnga"); + clk_register_clkdev(clk[sdma_gate], NULL, "imx31-sdma"); + clk_register_clkdev(clk[iim_gate], "iim", NULL); + + clk_set_parent(clk[csi], clk[upll]); + clk_prepare_enable(clk[emi_gate]); + clk_prepare_enable(clk[iim_gate]); + mx31_revision(); + clk_disable_unprepare(clk[iim_gate]); + + mxc_timer_init(MX31_GPT1_BASE_ADDR, MX31_INT_GPT, GPT_TYPE_IMX31); + + return 0; +} + +int __init mx31_clocks_init_dt(void) +{ + struct device_node *np; + u32 fref = 26000000; /* default */ + + for_each_compatible_node(np, NULL, "fixed-clock") { + if (!of_device_is_compatible(np, "fsl,imx-osc26m")) + continue; + + if (!of_property_read_u32(np, "clock-frequency", &fref)) + break; + } + + return mx31_clocks_init(fref); +} diff --git a/drivers/clk/imx/clk-imx35.c b/drivers/clk/imx/clk-imx35.c new file mode 100644 index 000000000000..69138ba3dec7 --- /dev/null +++ b/drivers/clk/imx/clk-imx35.c @@ -0,0 +1,310 @@ +/* + * Copyright (C) 2012 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ +#include <linux/mm.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/clkdev.h> +#include <linux/of.h> +#include <linux/err.h> +#include <soc/imx/revision.h> +#include <soc/imx/timer.h> +#include <asm/irq.h> + +#include "clk.h" + +#define MX35_CCM_BASE_ADDR 0x53f80000 +#define MX35_GPT1_BASE_ADDR 0x53f90000 +#define MX35_INT_GPT (NR_IRQS_LEGACY + 29) + +#define MXC_CCM_PDR0 0x04 +#define MX35_CCM_PDR2 0x0c +#define MX35_CCM_PDR3 0x10 +#define MX35_CCM_PDR4 0x14 +#define MX35_CCM_MPCTL 0x1c +#define MX35_CCM_PPCTL 0x20 +#define MX35_CCM_CGR0 0x2c +#define MX35_CCM_CGR1 0x30 +#define MX35_CCM_CGR2 0x34 +#define MX35_CCM_CGR3 0x38 + +struct arm_ahb_div { + unsigned char arm, ahb, sel; +}; + +static struct arm_ahb_div clk_consumer[] = { + { .arm = 1, .ahb = 4, .sel = 0}, + { .arm = 1, .ahb = 3, .sel = 1}, + { .arm = 2, .ahb = 2, .sel = 0}, + { .arm = 0, .ahb = 0, .sel = 0}, + { .arm = 0, .ahb = 0, .sel = 0}, + { .arm = 0, .ahb = 0, .sel = 0}, + { .arm = 4, .ahb = 1, .sel = 0}, + { .arm = 1, .ahb = 5, .sel = 0}, + { .arm = 1, .ahb = 8, .sel = 0}, + { .arm = 1, .ahb = 6, .sel = 1}, + { .arm = 2, .ahb = 4, .sel = 0}, + { .arm = 0, .ahb = 0, .sel = 0}, + { .arm = 0, .ahb = 0, .sel = 0}, + { .arm = 0, .ahb = 0, .sel = 0}, + { .arm = 4, .ahb = 2, .sel = 0}, + { .arm = 0, .ahb = 0, .sel = 0}, +}; + +static char hsp_div_532[] = { 4, 8, 3, 0 }; +static char hsp_div_400[] = { 3, 6, 3, 0 }; + +static struct clk_onecell_data clk_data; + +static const char *std_sel[] = {"ppll", "arm"}; +static const char *ipg_per_sel[] = {"ahb_per_div", "arm_per_div"}; + +enum mx35_clks { + ckih, mpll, ppll, mpll_075, arm, hsp, hsp_div, hsp_sel, ahb, ipg, + arm_per_div, ahb_per_div, ipg_per, uart_sel, uart_div, esdhc_sel, + esdhc1_div, esdhc2_div, esdhc3_div, spdif_sel, spdif_div_pre, + spdif_div_post, ssi_sel, ssi1_div_pre, ssi1_div_post, ssi2_div_pre, + ssi2_div_post, usb_sel, usb_div, nfc_div, asrc_gate, pata_gate, + audmux_gate, can1_gate, can2_gate, cspi1_gate, cspi2_gate, ect_gate, + edio_gate, emi_gate, epit1_gate, epit2_gate, esai_gate, esdhc1_gate, + esdhc2_gate, esdhc3_gate, fec_gate, gpio1_gate, gpio2_gate, gpio3_gate, + gpt_gate, i2c1_gate, i2c2_gate, i2c3_gate, iomuxc_gate, ipu_gate, + kpp_gate, mlb_gate, mshc_gate, owire_gate, pwm_gate, rngc_gate, + rtc_gate, rtic_gate, scc_gate, sdma_gate, spba_gate, spdif_gate, + ssi1_gate, ssi2_gate, uart1_gate, uart2_gate, uart3_gate, usbotg_gate, + wdog_gate, max_gate, admux_gate, csi_gate, csi_div, csi_sel, iim_gate, + gpu2d_gate, clk_max +}; + +static struct clk *clk[clk_max]; + +int __init mx35_clocks_init(void) +{ + void __iomem *base; + u32 pdr0, consumer_sel, hsp_sel; + struct arm_ahb_div *aad; + unsigned char *hsp_div; + + base = ioremap(MX35_CCM_BASE_ADDR, SZ_4K); + BUG_ON(!base); + + pdr0 = __raw_readl(base + MXC_CCM_PDR0); + consumer_sel = (pdr0 >> 16) & 0xf; + aad = &clk_consumer[consumer_sel]; + if (!aad->arm) { + pr_err("i.MX35 clk: illegal consumer mux selection 0x%x\n", consumer_sel); + /* + * We are basically stuck. Continue with a default entry and hope we + * get far enough to actually show the above message + */ + aad = &clk_consumer[0]; + } + + clk[ckih] = imx_clk_fixed("ckih", 24000000); + clk[mpll] = imx_clk_pllv1(IMX_PLLV1_IMX35, "mpll", "ckih", base + MX35_CCM_MPCTL); + clk[ppll] = imx_clk_pllv1(IMX_PLLV1_IMX35, "ppll", "ckih", base + MX35_CCM_PPCTL); + + clk[mpll] = imx_clk_fixed_factor("mpll_075", "mpll", 3, 4); + + if (aad->sel) + clk[arm] = imx_clk_fixed_factor("arm", "mpll_075", 1, aad->arm); + else + clk[arm] = imx_clk_fixed_factor("arm", "mpll", 1, aad->arm); + + if (clk_get_rate(clk[arm]) > 400000000) + hsp_div = hsp_div_532; + else + hsp_div = hsp_div_400; + + hsp_sel = (pdr0 >> 20) & 0x3; + if (!hsp_div[hsp_sel]) { + pr_err("i.MX35 clk: illegal hsp clk selection 0x%x\n", hsp_sel); + hsp_sel = 0; + } + + clk[hsp] = imx_clk_fixed_factor("hsp", "arm", 1, hsp_div[hsp_sel]); + + clk[ahb] = imx_clk_fixed_factor("ahb", "arm", 1, aad->ahb); + clk[ipg] = imx_clk_fixed_factor("ipg", "ahb", 1, 2); + + clk[arm_per_div] = imx_clk_divider("arm_per_div", "arm", base + MX35_CCM_PDR4, 16, 6); + clk[ahb_per_div] = imx_clk_divider("ahb_per_div", "ahb", base + MXC_CCM_PDR0, 12, 3); + clk[ipg_per] = imx_clk_mux("ipg_per", base + MXC_CCM_PDR0, 26, 1, ipg_per_sel, ARRAY_SIZE(ipg_per_sel)); + + clk[uart_sel] = imx_clk_mux("uart_sel", base + MX35_CCM_PDR3, 14, 1, std_sel, ARRAY_SIZE(std_sel)); + clk[uart_div] = imx_clk_divider("uart_div", "uart_sel", base + MX35_CCM_PDR4, 10, 6); + + clk[esdhc_sel] = imx_clk_mux("esdhc_sel", base + MX35_CCM_PDR4, 9, 1, std_sel, ARRAY_SIZE(std_sel)); + clk[esdhc1_div] = imx_clk_divider("esdhc1_div", "esdhc_sel", base + MX35_CCM_PDR3, 0, 6); + clk[esdhc2_div] = imx_clk_divider("esdhc2_div", "esdhc_sel", base + MX35_CCM_PDR3, 8, 6); + clk[esdhc3_div] = imx_clk_divider("esdhc3_div", "esdhc_sel", base + MX35_CCM_PDR3, 16, 6); + + clk[spdif_sel] = imx_clk_mux("spdif_sel", base + MX35_CCM_PDR3, 22, 1, std_sel, ARRAY_SIZE(std_sel)); + clk[spdif_div_pre] = imx_clk_divider("spdif_div_pre", "spdif_sel", base + MX35_CCM_PDR3, 29, 3); /* divide by 1 not allowed */ + clk[spdif_div_post] = imx_clk_divider("spdif_div_post", "spdif_div_pre", base + MX35_CCM_PDR3, 23, 6); + + clk[ssi_sel] = imx_clk_mux("ssi_sel", base + MX35_CCM_PDR2, 6, 1, std_sel, ARRAY_SIZE(std_sel)); + clk[ssi1_div_pre] = imx_clk_divider("ssi1_div_pre", "ssi_sel", base + MX35_CCM_PDR2, 24, 3); + clk[ssi1_div_post] = imx_clk_divider("ssi1_div_post", "ssi1_div_pre", base + MX35_CCM_PDR2, 0, 6); + clk[ssi2_div_pre] = imx_clk_divider("ssi2_div_pre", "ssi_sel", base + MX35_CCM_PDR2, 27, 3); + clk[ssi2_div_post] = imx_clk_divider("ssi2_div_post", "ssi2_div_pre", base + MX35_CCM_PDR2, 8, 6); + + clk[usb_sel] = imx_clk_mux("usb_sel", base + MX35_CCM_PDR4, 9, 1, std_sel, ARRAY_SIZE(std_sel)); + clk[usb_div] = imx_clk_divider("usb_div", "usb_sel", base + MX35_CCM_PDR4, 22, 6); + + clk[nfc_div] = imx_clk_divider("nfc_div", "ahb", base + MX35_CCM_PDR4, 28, 4); + + clk[csi_sel] = imx_clk_mux("csi_sel", base + MX35_CCM_PDR2, 7, 1, std_sel, ARRAY_SIZE(std_sel)); + clk[csi_div] = imx_clk_divider("csi_div", "csi_sel", base + MX35_CCM_PDR2, 16, 6); + + clk[asrc_gate] = imx_clk_gate2("asrc_gate", "ipg", base + MX35_CCM_CGR0, 0); + clk[pata_gate] = imx_clk_gate2("pata_gate", "ipg", base + MX35_CCM_CGR0, 2); + clk[audmux_gate] = imx_clk_gate2("audmux_gate", "ipg", base + MX35_CCM_CGR0, 4); + clk[can1_gate] = imx_clk_gate2("can1_gate", "ipg", base + MX35_CCM_CGR0, 6); + clk[can2_gate] = imx_clk_gate2("can2_gate", "ipg", base + MX35_CCM_CGR0, 8); + clk[cspi1_gate] = imx_clk_gate2("cspi1_gate", "ipg", base + MX35_CCM_CGR0, 10); + clk[cspi2_gate] = imx_clk_gate2("cspi2_gate", "ipg", base + MX35_CCM_CGR0, 12); + clk[ect_gate] = imx_clk_gate2("ect_gate", "ipg", base + MX35_CCM_CGR0, 14); + clk[edio_gate] = imx_clk_gate2("edio_gate", "ipg", base + MX35_CCM_CGR0, 16); + clk[emi_gate] = imx_clk_gate2("emi_gate", "ipg", base + MX35_CCM_CGR0, 18); + clk[epit1_gate] = imx_clk_gate2("epit1_gate", "ipg", base + MX35_CCM_CGR0, 20); + clk[epit2_gate] = imx_clk_gate2("epit2_gate", "ipg", base + MX35_CCM_CGR0, 22); + clk[esai_gate] = imx_clk_gate2("esai_gate", "ipg", base + MX35_CCM_CGR0, 24); + clk[esdhc1_gate] = imx_clk_gate2("esdhc1_gate", "esdhc1_div", base + MX35_CCM_CGR0, 26); + clk[esdhc2_gate] = imx_clk_gate2("esdhc2_gate", "esdhc2_div", base + MX35_CCM_CGR0, 28); + clk[esdhc3_gate] = imx_clk_gate2("esdhc3_gate", "esdhc3_div", base + MX35_CCM_CGR0, 30); + + clk[fec_gate] = imx_clk_gate2("fec_gate", "ipg", base + MX35_CCM_CGR1, 0); + clk[gpio1_gate] = imx_clk_gate2("gpio1_gate", "ipg", base + MX35_CCM_CGR1, 2); + clk[gpio2_gate] = imx_clk_gate2("gpio2_gate", "ipg", base + MX35_CCM_CGR1, 4); + clk[gpio3_gate] = imx_clk_gate2("gpio3_gate", "ipg", base + MX35_CCM_CGR1, 6); + clk[gpt_gate] = imx_clk_gate2("gpt_gate", "ipg", base + MX35_CCM_CGR1, 8); + clk[i2c1_gate] = imx_clk_gate2("i2c1_gate", "ipg_per", base + MX35_CCM_CGR1, 10); + clk[i2c2_gate] = imx_clk_gate2("i2c2_gate", "ipg_per", base + MX35_CCM_CGR1, 12); + clk[i2c3_gate] = imx_clk_gate2("i2c3_gate", "ipg_per", base + MX35_CCM_CGR1, 14); + clk[iomuxc_gate] = imx_clk_gate2("iomuxc_gate", "ipg", base + MX35_CCM_CGR1, 16); + clk[ipu_gate] = imx_clk_gate2("ipu_gate", "hsp", base + MX35_CCM_CGR1, 18); + clk[kpp_gate] = imx_clk_gate2("kpp_gate", "ipg", base + MX35_CCM_CGR1, 20); + clk[mlb_gate] = imx_clk_gate2("mlb_gate", "ahb", base + MX35_CCM_CGR1, 22); + clk[mshc_gate] = imx_clk_gate2("mshc_gate", "dummy", base + MX35_CCM_CGR1, 24); + clk[owire_gate] = imx_clk_gate2("owire_gate", "ipg_per", base + MX35_CCM_CGR1, 26); + clk[pwm_gate] = imx_clk_gate2("pwm_gate", "ipg_per", base + MX35_CCM_CGR1, 28); + clk[rngc_gate] = imx_clk_gate2("rngc_gate", "ipg", base + MX35_CCM_CGR1, 30); + + clk[rtc_gate] = imx_clk_gate2("rtc_gate", "ipg", base + MX35_CCM_CGR2, 0); + clk[rtic_gate] = imx_clk_gate2("rtic_gate", "ahb", base + MX35_CCM_CGR2, 2); + clk[scc_gate] = imx_clk_gate2("scc_gate", "ipg", base + MX35_CCM_CGR2, 4); + clk[sdma_gate] = imx_clk_gate2("sdma_gate", "ahb", base + MX35_CCM_CGR2, 6); + clk[spba_gate] = imx_clk_gate2("spba_gate", "ipg", base + MX35_CCM_CGR2, 8); + clk[spdif_gate] = imx_clk_gate2("spdif_gate", "spdif_div_post", base + MX35_CCM_CGR2, 10); + clk[ssi1_gate] = imx_clk_gate2("ssi1_gate", "ssi1_div_post", base + MX35_CCM_CGR2, 12); + clk[ssi2_gate] = imx_clk_gate2("ssi2_gate", "ssi2_div_post", base + MX35_CCM_CGR2, 14); + clk[uart1_gate] = imx_clk_gate2("uart1_gate", "uart_div", base + MX35_CCM_CGR2, 16); + clk[uart2_gate] = imx_clk_gate2("uart2_gate", "uart_div", base + MX35_CCM_CGR2, 18); + clk[uart3_gate] = imx_clk_gate2("uart3_gate", "uart_div", base + MX35_CCM_CGR2, 20); + clk[usbotg_gate] = imx_clk_gate2("usbotg_gate", "ahb", base + MX35_CCM_CGR2, 22); + clk[wdog_gate] = imx_clk_gate2("wdog_gate", "ipg", base + MX35_CCM_CGR2, 24); + clk[max_gate] = imx_clk_gate2("max_gate", "dummy", base + MX35_CCM_CGR2, 26); + clk[admux_gate] = imx_clk_gate2("admux_gate", "ipg", base + MX35_CCM_CGR2, 30); + + clk[csi_gate] = imx_clk_gate2("csi_gate", "csi_div", base + MX35_CCM_CGR3, 0); + clk[iim_gate] = imx_clk_gate2("iim_gate", "ipg", base + MX35_CCM_CGR3, 2); + clk[gpu2d_gate] = imx_clk_gate2("gpu2d_gate", "ahb", base + MX35_CCM_CGR3, 4); + + imx_check_clocks(clk, ARRAY_SIZE(clk)); + + clk_register_clkdev(clk[pata_gate], NULL, "pata_imx"); + clk_register_clkdev(clk[can1_gate], NULL, "flexcan.0"); + clk_register_clkdev(clk[can2_gate], NULL, "flexcan.1"); + clk_register_clkdev(clk[cspi1_gate], "per", "imx35-cspi.0"); + clk_register_clkdev(clk[cspi1_gate], "ipg", "imx35-cspi.0"); + clk_register_clkdev(clk[cspi2_gate], "per", "imx35-cspi.1"); + clk_register_clkdev(clk[cspi2_gate], "ipg", "imx35-cspi.1"); + clk_register_clkdev(clk[epit1_gate], NULL, "imx-epit.0"); + clk_register_clkdev(clk[epit2_gate], NULL, "imx-epit.1"); + clk_register_clkdev(clk[esdhc1_gate], "per", "sdhci-esdhc-imx35.0"); + clk_register_clkdev(clk[ipg], "ipg", "sdhci-esdhc-imx35.0"); + clk_register_clkdev(clk[ahb], "ahb", "sdhci-esdhc-imx35.0"); + clk_register_clkdev(clk[esdhc2_gate], "per", "sdhci-esdhc-imx35.1"); + clk_register_clkdev(clk[ipg], "ipg", "sdhci-esdhc-imx35.1"); + clk_register_clkdev(clk[ahb], "ahb", "sdhci-esdhc-imx35.1"); + clk_register_clkdev(clk[esdhc3_gate], "per", "sdhci-esdhc-imx35.2"); + clk_register_clkdev(clk[ipg], "ipg", "sdhci-esdhc-imx35.2"); + clk_register_clkdev(clk[ahb], "ahb", "sdhci-esdhc-imx35.2"); + /* i.mx35 has the i.mx27 type fec */ + clk_register_clkdev(clk[fec_gate], NULL, "imx27-fec.0"); + clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0"); + clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0"); + clk_register_clkdev(clk[i2c1_gate], NULL, "imx21-i2c.0"); + clk_register_clkdev(clk[i2c2_gate], NULL, "imx21-i2c.1"); + clk_register_clkdev(clk[i2c3_gate], NULL, "imx21-i2c.2"); + clk_register_clkdev(clk[ipu_gate], NULL, "ipu-core"); + clk_register_clkdev(clk[ipu_gate], NULL, "mx3_sdc_fb"); + clk_register_clkdev(clk[kpp_gate], NULL, "imx-keypad"); + clk_register_clkdev(clk[owire_gate], NULL, "mxc_w1"); + clk_register_clkdev(clk[sdma_gate], NULL, "imx35-sdma"); + clk_register_clkdev(clk[ssi1_gate], NULL, "imx-ssi.0"); + clk_register_clkdev(clk[ssi2_gate], NULL, "imx-ssi.1"); + /* i.mx35 has the i.mx21 type uart */ + clk_register_clkdev(clk[uart1_gate], "per", "imx21-uart.0"); + clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.0"); + clk_register_clkdev(clk[uart2_gate], "per", "imx21-uart.1"); + clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.1"); + clk_register_clkdev(clk[uart3_gate], "per", "imx21-uart.2"); + clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.2"); + clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.0"); + clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.0"); + clk_register_clkdev(clk[usbotg_gate], "ahb", "mxc-ehci.0"); + clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.1"); + clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.1"); + clk_register_clkdev(clk[usbotg_gate], "ahb", "mxc-ehci.1"); + clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.2"); + clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.2"); + clk_register_clkdev(clk[usbotg_gate], "ahb", "mxc-ehci.2"); + clk_register_clkdev(clk[usb_div], "per", "imx-udc-mx27"); + clk_register_clkdev(clk[ipg], "ipg", "imx-udc-mx27"); + clk_register_clkdev(clk[usbotg_gate], "ahb", "imx-udc-mx27"); + clk_register_clkdev(clk[wdog_gate], NULL, "imx2-wdt.0"); + clk_register_clkdev(clk[nfc_div], NULL, "imx25-nand.0"); + clk_register_clkdev(clk[csi_gate], NULL, "mx3-camera.0"); + clk_register_clkdev(clk[admux_gate], "audmux", NULL); + + clk_prepare_enable(clk[spba_gate]); + clk_prepare_enable(clk[gpio1_gate]); + clk_prepare_enable(clk[gpio2_gate]); + clk_prepare_enable(clk[gpio3_gate]); + clk_prepare_enable(clk[iim_gate]); + clk_prepare_enable(clk[emi_gate]); + clk_prepare_enable(clk[max_gate]); + clk_prepare_enable(clk[iomuxc_gate]); + + /* + * SCC is needed to boot via mmc after a watchdog reset. The clock code + * before conversion to common clk also enabled UART1 (which isn't + * handled here and not needed for mmc) and IIM (which is enabled + * unconditionally above). + */ + clk_prepare_enable(clk[scc_gate]); + + imx_print_silicon_rev("i.MX35", mx35_revision()); + + mxc_timer_init(MX35_GPT1_BASE_ADDR, MX35_INT_GPT, GPT_TYPE_IMX31); + + return 0; +} + +static void __init mx35_clocks_init_dt(struct device_node *ccm_node) +{ + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(ccm_node, of_clk_src_onecell_get, &clk_data); + + mx35_clocks_init(); +} +CLK_OF_DECLARE(imx35, "fsl,imx35-ccm", mx35_clocks_init_dt); diff --git a/drivers/clk/imx/clk-imx51-imx53.c b/drivers/clk/imx/clk-imx51-imx53.c new file mode 100644 index 000000000000..a7e4f394be0d --- /dev/null +++ b/drivers/clk/imx/clk-imx51-imx53.c @@ -0,0 +1,570 @@ +/* + * Copyright (C) 2011 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ +#include <linux/mm.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/clkdev.h> +#include <linux/clk-provider.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <soc/imx/revision.h> +#include <dt-bindings/clock/imx5-clock.h> + +#include "clk.h" + +#define MX51_DPLL1_BASE 0x83f80000 +#define MX51_DPLL2_BASE 0x83f84000 +#define MX51_DPLL3_BASE 0x83f88000 + +#define MX53_DPLL1_BASE 0x63f80000 +#define MX53_DPLL2_BASE 0x63f84000 +#define MX53_DPLL3_BASE 0x63f88000 +#define MX53_DPLL4_BASE 0x63f8c000 + +#define MXC_CCM_CCR (ccm_base + 0x00) +#define MXC_CCM_CCDR (ccm_base + 0x04) +#define MXC_CCM_CSR (ccm_base + 0x08) +#define MXC_CCM_CCSR (ccm_base + 0x0c) +#define MXC_CCM_CACRR (ccm_base + 0x10) +#define MXC_CCM_CBCDR (ccm_base + 0x14) +#define MXC_CCM_CBCMR (ccm_base + 0x18) +#define MXC_CCM_CSCMR1 (ccm_base + 0x1c) +#define MXC_CCM_CSCMR2 (ccm_base + 0x20) +#define MXC_CCM_CSCDR1 (ccm_base + 0x24) +#define MXC_CCM_CS1CDR (ccm_base + 0x28) +#define MXC_CCM_CS2CDR (ccm_base + 0x2c) +#define MXC_CCM_CDCDR (ccm_base + 0x30) +#define MXC_CCM_CHSCDR (ccm_base + 0x34) +#define MXC_CCM_CSCDR2 (ccm_base + 0x38) +#define MXC_CCM_CSCDR3 (ccm_base + 0x3c) +#define MXC_CCM_CSCDR4 (ccm_base + 0x40) +#define MXC_CCM_CWDR (ccm_base + 0x44) +#define MXC_CCM_CDHIPR (ccm_base + 0x48) +#define MXC_CCM_CDCR (ccm_base + 0x4c) +#define MXC_CCM_CTOR (ccm_base + 0x50) +#define MXC_CCM_CLPCR (ccm_base + 0x54) +#define MXC_CCM_CISR (ccm_base + 0x58) +#define MXC_CCM_CIMR (ccm_base + 0x5c) +#define MXC_CCM_CCOSR (ccm_base + 0x60) +#define MXC_CCM_CGPR (ccm_base + 0x64) +#define MXC_CCM_CCGR0 (ccm_base + 0x68) +#define MXC_CCM_CCGR1 (ccm_base + 0x6c) +#define MXC_CCM_CCGR2 (ccm_base + 0x70) +#define MXC_CCM_CCGR3 (ccm_base + 0x74) +#define MXC_CCM_CCGR4 (ccm_base + 0x78) +#define MXC_CCM_CCGR5 (ccm_base + 0x7c) +#define MXC_CCM_CCGR6 (ccm_base + 0x80) +#define MXC_CCM_CCGR7 (ccm_base + 0x84) + +/* Low-power Audio Playback Mode clock */ +static const char *lp_apm_sel[] = { "osc", }; + +/* This is used multiple times */ +static const char *standard_pll_sel[] = { "pll1_sw", "pll2_sw", "pll3_sw", "lp_apm", }; +static const char *periph_apm_sel[] = { "pll1_sw", "pll3_sw", "lp_apm", }; +static const char *main_bus_sel[] = { "pll2_sw", "periph_apm", }; +static const char *per_lp_apm_sel[] = { "main_bus", "lp_apm", }; +static const char *per_root_sel[] = { "per_podf", "ipg", }; +static const char *esdhc_c_sel[] = { "esdhc_a_podf", "esdhc_b_podf", }; +static const char *esdhc_d_sel[] = { "esdhc_a_podf", "esdhc_b_podf", }; +static const char *ssi_apm_sels[] = { "ckih1", "lp_amp", "ckih2", }; +static const char *ssi_clk_sels[] = { "pll1_sw", "pll2_sw", "pll3_sw", "ssi_apm", }; +static const char *ssi3_clk_sels[] = { "ssi1_root_gate", "ssi2_root_gate", }; +static const char *ssi_ext1_com_sels[] = { "ssi_ext1_podf", "ssi1_root_gate", }; +static const char *ssi_ext2_com_sels[] = { "ssi_ext2_podf", "ssi2_root_gate", }; +static const char *emi_slow_sel[] = { "main_bus", "ahb", }; +static const char *usb_phy_sel_str[] = { "osc", "usb_phy_podf", }; +static const char *mx51_ipu_di0_sel[] = { "di_pred", "osc", "ckih1", "tve_di", }; +static const char *mx53_ipu_di0_sel[] = { "di_pred", "osc", "ckih1", "di_pll4_podf", "dummy", "ldb_di0_gate", }; +static const char *mx53_ldb_di0_sel[] = { "pll3_sw", "pll4_sw", }; +static const char *mx51_ipu_di1_sel[] = { "di_pred", "osc", "ckih1", "tve_di", "ipp_di1", }; +static const char *mx53_ipu_di1_sel[] = { "di_pred", "osc", "ckih1", "tve_di", "ipp_di1", "ldb_di1_gate", }; +static const char *mx53_ldb_di1_sel[] = { "pll3_sw", "pll4_sw", }; +static const char *mx51_tve_ext_sel[] = { "osc", "ckih1", }; +static const char *mx53_tve_ext_sel[] = { "pll4_sw", "ckih1", }; +static const char *mx51_tve_sel[] = { "tve_pred", "tve_ext_sel", }; +static const char *ipu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", }; +static const char *gpu3d_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb" }; +static const char *gpu2d_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb" }; +static const char *vpu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", }; +static const char *mx53_can_sel[] = { "ipg", "ckih1", "ckih2", "lp_apm", }; +static const char *mx53_cko1_sel[] = { + "cpu_podf", "pll1_sw", "pll2_sw", "pll3_sw", + "emi_slow_podf", "pll4_sw", "nfc_podf", "dummy", + "di_pred", "dummy", "dummy", "ahb", + "ipg", "per_root", "ckil", "dummy",}; +static const char *mx53_cko2_sel[] = { + "dummy"/* dptc_core */, "dummy"/* dptc_perich */, + "dummy", "esdhc_a_podf", + "usboh3_podf", "dummy"/* wrck_clk_root */, + "ecspi_podf", "dummy"/* pll1_ref_clk */, + "esdhc_b_podf", "dummy"/* ddr_clk_root */, + "dummy"/* arm_axi_clk_root */, "dummy"/* usb_phy_out */, + "vpu_sel", "ipu_sel", + "osc", "ckih1", + "dummy", "esdhc_c_sel", + "ssi1_root_podf", "ssi2_root_podf", + "dummy", "dummy", + "dummy"/* lpsr_clk_root */, "dummy"/* pgc_clk_root */, + "dummy"/* tve_out */, "usb_phy_sel", + "tve_sel", "lp_apm", + "uart_root", "dummy"/* spdif0_clk_root */, + "dummy", "dummy", }; +static const char *mx51_spdif_xtal_sel[] = { "osc", "ckih", "ckih2", }; +static const char *mx53_spdif_xtal_sel[] = { "osc", "ckih", "ckih2", "pll4_sw", }; +static const char *spdif_sel[] = { "pll1_sw", "pll2_sw", "pll3_sw", "spdif_xtal_sel", }; +static const char *spdif0_com_sel[] = { "spdif0_podf", "ssi1_root_gate", }; +static const char *mx51_spdif1_com_sel[] = { "spdif1_podf", "ssi2_root_gate", }; +static const char *step_sels[] = { "lp_apm", }; +static const char *cpu_podf_sels[] = { "pll1_sw", "step_sel" }; + +static struct clk *clk[IMX5_CLK_END]; +static struct clk_onecell_data clk_data; + +static void __init mx5_clocks_common_init(void __iomem *ccm_base) +{ + clk[IMX5_CLK_DUMMY] = imx_clk_fixed("dummy", 0); + clk[IMX5_CLK_CKIL] = imx_obtain_fixed_clock("ckil", 0); + clk[IMX5_CLK_OSC] = imx_obtain_fixed_clock("osc", 0); + clk[IMX5_CLK_CKIH1] = imx_obtain_fixed_clock("ckih1", 0); + clk[IMX5_CLK_CKIH2] = imx_obtain_fixed_clock("ckih2", 0); + + clk[IMX5_CLK_PERIPH_APM] = imx_clk_mux("periph_apm", MXC_CCM_CBCMR, 12, 2, + periph_apm_sel, ARRAY_SIZE(periph_apm_sel)); + clk[IMX5_CLK_MAIN_BUS] = imx_clk_mux("main_bus", MXC_CCM_CBCDR, 25, 1, + main_bus_sel, ARRAY_SIZE(main_bus_sel)); + clk[IMX5_CLK_PER_LP_APM] = imx_clk_mux("per_lp_apm", MXC_CCM_CBCMR, 1, 1, + per_lp_apm_sel, ARRAY_SIZE(per_lp_apm_sel)); + clk[IMX5_CLK_PER_PRED1] = imx_clk_divider("per_pred1", "per_lp_apm", MXC_CCM_CBCDR, 6, 2); + clk[IMX5_CLK_PER_PRED2] = imx_clk_divider("per_pred2", "per_pred1", MXC_CCM_CBCDR, 3, 3); + clk[IMX5_CLK_PER_PODF] = imx_clk_divider("per_podf", "per_pred2", MXC_CCM_CBCDR, 0, 3); + clk[IMX5_CLK_PER_ROOT] = imx_clk_mux("per_root", MXC_CCM_CBCMR, 0, 1, + per_root_sel, ARRAY_SIZE(per_root_sel)); + clk[IMX5_CLK_AHB] = imx_clk_divider("ahb", "main_bus", MXC_CCM_CBCDR, 10, 3); + clk[IMX5_CLK_AHB_MAX] = imx_clk_gate2("ahb_max", "ahb", MXC_CCM_CCGR0, 28); + clk[IMX5_CLK_AIPS_TZ1] = imx_clk_gate2("aips_tz1", "ahb", MXC_CCM_CCGR0, 24); + clk[IMX5_CLK_AIPS_TZ2] = imx_clk_gate2("aips_tz2", "ahb", MXC_CCM_CCGR0, 26); + clk[IMX5_CLK_TMAX1] = imx_clk_gate2("tmax1", "ahb", MXC_CCM_CCGR1, 0); + clk[IMX5_CLK_TMAX2] = imx_clk_gate2("tmax2", "ahb", MXC_CCM_CCGR1, 2); + clk[IMX5_CLK_TMAX3] = imx_clk_gate2("tmax3", "ahb", MXC_CCM_CCGR1, 4); + clk[IMX5_CLK_SPBA] = imx_clk_gate2("spba", "ipg", MXC_CCM_CCGR5, 0); + clk[IMX5_CLK_IPG] = imx_clk_divider("ipg", "ahb", MXC_CCM_CBCDR, 8, 2); + clk[IMX5_CLK_AXI_A] = imx_clk_divider("axi_a", "main_bus", MXC_CCM_CBCDR, 16, 3); + clk[IMX5_CLK_AXI_B] = imx_clk_divider("axi_b", "main_bus", MXC_CCM_CBCDR, 19, 3); + clk[IMX5_CLK_UART_SEL] = imx_clk_mux("uart_sel", MXC_CCM_CSCMR1, 24, 2, + standard_pll_sel, ARRAY_SIZE(standard_pll_sel)); + clk[IMX5_CLK_UART_PRED] = imx_clk_divider("uart_pred", "uart_sel", MXC_CCM_CSCDR1, 3, 3); + clk[IMX5_CLK_UART_ROOT] = imx_clk_divider("uart_root", "uart_pred", MXC_CCM_CSCDR1, 0, 3); + + clk[IMX5_CLK_ESDHC_A_SEL] = imx_clk_mux("esdhc_a_sel", MXC_CCM_CSCMR1, 20, 2, + standard_pll_sel, ARRAY_SIZE(standard_pll_sel)); + clk[IMX5_CLK_ESDHC_B_SEL] = imx_clk_mux("esdhc_b_sel", MXC_CCM_CSCMR1, 16, 2, + standard_pll_sel, ARRAY_SIZE(standard_pll_sel)); + clk[IMX5_CLK_ESDHC_A_PRED] = imx_clk_divider("esdhc_a_pred", "esdhc_a_sel", MXC_CCM_CSCDR1, 16, 3); + clk[IMX5_CLK_ESDHC_A_PODF] = imx_clk_divider("esdhc_a_podf", "esdhc_a_pred", MXC_CCM_CSCDR1, 11, 3); + clk[IMX5_CLK_ESDHC_B_PRED] = imx_clk_divider("esdhc_b_pred", "esdhc_b_sel", MXC_CCM_CSCDR1, 22, 3); + clk[IMX5_CLK_ESDHC_B_PODF] = imx_clk_divider("esdhc_b_podf", "esdhc_b_pred", MXC_CCM_CSCDR1, 19, 3); + clk[IMX5_CLK_ESDHC_C_SEL] = imx_clk_mux("esdhc_c_sel", MXC_CCM_CSCMR1, 19, 1, esdhc_c_sel, ARRAY_SIZE(esdhc_c_sel)); + clk[IMX5_CLK_ESDHC_D_SEL] = imx_clk_mux("esdhc_d_sel", MXC_CCM_CSCMR1, 18, 1, esdhc_d_sel, ARRAY_SIZE(esdhc_d_sel)); + + clk[IMX5_CLK_EMI_SEL] = imx_clk_mux("emi_sel", MXC_CCM_CBCDR, 26, 1, + emi_slow_sel, ARRAY_SIZE(emi_slow_sel)); + clk[IMX5_CLK_EMI_SLOW_PODF] = imx_clk_divider("emi_slow_podf", "emi_sel", MXC_CCM_CBCDR, 22, 3); + clk[IMX5_CLK_NFC_PODF] = imx_clk_divider("nfc_podf", "emi_slow_podf", MXC_CCM_CBCDR, 13, 3); + clk[IMX5_CLK_ECSPI_SEL] = imx_clk_mux("ecspi_sel", MXC_CCM_CSCMR1, 4, 2, + standard_pll_sel, ARRAY_SIZE(standard_pll_sel)); + clk[IMX5_CLK_ECSPI_PRED] = imx_clk_divider("ecspi_pred", "ecspi_sel", MXC_CCM_CSCDR2, 25, 3); + clk[IMX5_CLK_ECSPI_PODF] = imx_clk_divider("ecspi_podf", "ecspi_pred", MXC_CCM_CSCDR2, 19, 6); + clk[IMX5_CLK_USBOH3_SEL] = imx_clk_mux("usboh3_sel", MXC_CCM_CSCMR1, 22, 2, + standard_pll_sel, ARRAY_SIZE(standard_pll_sel)); + clk[IMX5_CLK_USBOH3_PRED] = imx_clk_divider("usboh3_pred", "usboh3_sel", MXC_CCM_CSCDR1, 8, 3); + clk[IMX5_CLK_USBOH3_PODF] = imx_clk_divider("usboh3_podf", "usboh3_pred", MXC_CCM_CSCDR1, 6, 2); + clk[IMX5_CLK_USB_PHY_PRED] = imx_clk_divider("usb_phy_pred", "pll3_sw", MXC_CCM_CDCDR, 3, 3); + clk[IMX5_CLK_USB_PHY_PODF] = imx_clk_divider("usb_phy_podf", "usb_phy_pred", MXC_CCM_CDCDR, 0, 3); + clk[IMX5_CLK_USB_PHY_SEL] = imx_clk_mux("usb_phy_sel", MXC_CCM_CSCMR1, 26, 1, + usb_phy_sel_str, ARRAY_SIZE(usb_phy_sel_str)); + clk[IMX5_CLK_STEP_SEL] = imx_clk_mux("step_sel", MXC_CCM_CCSR, 7, 2, step_sels, ARRAY_SIZE(step_sels)); + clk[IMX5_CLK_CPU_PODF_SEL] = imx_clk_mux("cpu_podf_sel", MXC_CCM_CCSR, 2, 1, cpu_podf_sels, ARRAY_SIZE(cpu_podf_sels)); + clk[IMX5_CLK_CPU_PODF] = imx_clk_divider("cpu_podf", "cpu_podf_sel", MXC_CCM_CACRR, 0, 3); + clk[IMX5_CLK_DI_PRED] = imx_clk_divider("di_pred", "pll3_sw", MXC_CCM_CDCDR, 6, 3); + clk[IMX5_CLK_IIM_GATE] = imx_clk_gate2("iim_gate", "ipg", MXC_CCM_CCGR0, 30); + clk[IMX5_CLK_UART1_IPG_GATE] = imx_clk_gate2("uart1_ipg_gate", "ipg", MXC_CCM_CCGR1, 6); + clk[IMX5_CLK_UART1_PER_GATE] = imx_clk_gate2("uart1_per_gate", "uart_root", MXC_CCM_CCGR1, 8); + clk[IMX5_CLK_UART2_IPG_GATE] = imx_clk_gate2("uart2_ipg_gate", "ipg", MXC_CCM_CCGR1, 10); + clk[IMX5_CLK_UART2_PER_GATE] = imx_clk_gate2("uart2_per_gate", "uart_root", MXC_CCM_CCGR1, 12); + clk[IMX5_CLK_UART3_IPG_GATE] = imx_clk_gate2("uart3_ipg_gate", "ipg", MXC_CCM_CCGR1, 14); + clk[IMX5_CLK_UART3_PER_GATE] = imx_clk_gate2("uart3_per_gate", "uart_root", MXC_CCM_CCGR1, 16); + clk[IMX5_CLK_I2C1_GATE] = imx_clk_gate2("i2c1_gate", "per_root", MXC_CCM_CCGR1, 18); + clk[IMX5_CLK_I2C2_GATE] = imx_clk_gate2("i2c2_gate", "per_root", MXC_CCM_CCGR1, 20); + clk[IMX5_CLK_PWM1_IPG_GATE] = imx_clk_gate2("pwm1_ipg_gate", "ipg", MXC_CCM_CCGR2, 10); + clk[IMX5_CLK_PWM1_HF_GATE] = imx_clk_gate2("pwm1_hf_gate", "per_root", MXC_CCM_CCGR2, 12); + clk[IMX5_CLK_PWM2_IPG_GATE] = imx_clk_gate2("pwm2_ipg_gate", "ipg", MXC_CCM_CCGR2, 14); + clk[IMX5_CLK_PWM2_HF_GATE] = imx_clk_gate2("pwm2_hf_gate", "per_root", MXC_CCM_CCGR2, 16); + clk[IMX5_CLK_GPT_IPG_GATE] = imx_clk_gate2("gpt_ipg_gate", "ipg", MXC_CCM_CCGR2, 18); + clk[IMX5_CLK_GPT_HF_GATE] = imx_clk_gate2("gpt_hf_gate", "per_root", MXC_CCM_CCGR2, 20); + clk[IMX5_CLK_FEC_GATE] = imx_clk_gate2("fec_gate", "ipg", MXC_CCM_CCGR2, 24); + clk[IMX5_CLK_USBOH3_GATE] = imx_clk_gate2("usboh3_gate", "ipg", MXC_CCM_CCGR2, 26); + clk[IMX5_CLK_USBOH3_PER_GATE] = imx_clk_gate2("usboh3_per_gate", "usboh3_podf", MXC_CCM_CCGR2, 28); + clk[IMX5_CLK_ESDHC1_IPG_GATE] = imx_clk_gate2("esdhc1_ipg_gate", "ipg", MXC_CCM_CCGR3, 0); + clk[IMX5_CLK_ESDHC2_IPG_GATE] = imx_clk_gate2("esdhc2_ipg_gate", "ipg", MXC_CCM_CCGR3, 4); + clk[IMX5_CLK_ESDHC3_IPG_GATE] = imx_clk_gate2("esdhc3_ipg_gate", "ipg", MXC_CCM_CCGR3, 8); + clk[IMX5_CLK_ESDHC4_IPG_GATE] = imx_clk_gate2("esdhc4_ipg_gate", "ipg", MXC_CCM_CCGR3, 12); + clk[IMX5_CLK_SSI1_IPG_GATE] = imx_clk_gate2("ssi1_ipg_gate", "ipg", MXC_CCM_CCGR3, 16); + clk[IMX5_CLK_SSI2_IPG_GATE] = imx_clk_gate2("ssi2_ipg_gate", "ipg", MXC_CCM_CCGR3, 20); + clk[IMX5_CLK_SSI3_IPG_GATE] = imx_clk_gate2("ssi3_ipg_gate", "ipg", MXC_CCM_CCGR3, 24); + clk[IMX5_CLK_ECSPI1_IPG_GATE] = imx_clk_gate2("ecspi1_ipg_gate", "ipg", MXC_CCM_CCGR4, 18); + clk[IMX5_CLK_ECSPI1_PER_GATE] = imx_clk_gate2("ecspi1_per_gate", "ecspi_podf", MXC_CCM_CCGR4, 20); + clk[IMX5_CLK_ECSPI2_IPG_GATE] = imx_clk_gate2("ecspi2_ipg_gate", "ipg", MXC_CCM_CCGR4, 22); + clk[IMX5_CLK_ECSPI2_PER_GATE] = imx_clk_gate2("ecspi2_per_gate", "ecspi_podf", MXC_CCM_CCGR4, 24); + clk[IMX5_CLK_CSPI_IPG_GATE] = imx_clk_gate2("cspi_ipg_gate", "ipg", MXC_CCM_CCGR4, 26); + clk[IMX5_CLK_SDMA_GATE] = imx_clk_gate2("sdma_gate", "ipg", MXC_CCM_CCGR4, 30); + clk[IMX5_CLK_EMI_FAST_GATE] = imx_clk_gate2("emi_fast_gate", "dummy", MXC_CCM_CCGR5, 14); + clk[IMX5_CLK_EMI_SLOW_GATE] = imx_clk_gate2("emi_slow_gate", "emi_slow_podf", MXC_CCM_CCGR5, 16); + clk[IMX5_CLK_IPU_SEL] = imx_clk_mux("ipu_sel", MXC_CCM_CBCMR, 6, 2, ipu_sel, ARRAY_SIZE(ipu_sel)); + clk[IMX5_CLK_IPU_GATE] = imx_clk_gate2("ipu_gate", "ipu_sel", MXC_CCM_CCGR5, 10); + clk[IMX5_CLK_NFC_GATE] = imx_clk_gate2("nfc_gate", "nfc_podf", MXC_CCM_CCGR5, 20); + clk[IMX5_CLK_IPU_DI0_GATE] = imx_clk_gate2("ipu_di0_gate", "ipu_di0_sel", MXC_CCM_CCGR6, 10); + clk[IMX5_CLK_IPU_DI1_GATE] = imx_clk_gate2("ipu_di1_gate", "ipu_di1_sel", MXC_CCM_CCGR6, 12); + clk[IMX5_CLK_GPU3D_SEL] = imx_clk_mux("gpu3d_sel", MXC_CCM_CBCMR, 4, 2, gpu3d_sel, ARRAY_SIZE(gpu3d_sel)); + clk[IMX5_CLK_GPU2D_SEL] = imx_clk_mux("gpu2d_sel", MXC_CCM_CBCMR, 16, 2, gpu2d_sel, ARRAY_SIZE(gpu2d_sel)); + clk[IMX5_CLK_GPU3D_GATE] = imx_clk_gate2("gpu3d_gate", "gpu3d_sel", MXC_CCM_CCGR5, 2); + clk[IMX5_CLK_GARB_GATE] = imx_clk_gate2("garb_gate", "axi_a", MXC_CCM_CCGR5, 4); + clk[IMX5_CLK_GPU2D_GATE] = imx_clk_gate2("gpu2d_gate", "gpu2d_sel", MXC_CCM_CCGR6, 14); + clk[IMX5_CLK_VPU_SEL] = imx_clk_mux("vpu_sel", MXC_CCM_CBCMR, 14, 2, vpu_sel, ARRAY_SIZE(vpu_sel)); + clk[IMX5_CLK_VPU_GATE] = imx_clk_gate2("vpu_gate", "vpu_sel", MXC_CCM_CCGR5, 6); + clk[IMX5_CLK_VPU_REFERENCE_GATE] = imx_clk_gate2("vpu_reference_gate", "osc", MXC_CCM_CCGR5, 8); + clk[IMX5_CLK_UART4_IPG_GATE] = imx_clk_gate2("uart4_ipg_gate", "ipg", MXC_CCM_CCGR7, 8); + clk[IMX5_CLK_UART4_PER_GATE] = imx_clk_gate2("uart4_per_gate", "uart_root", MXC_CCM_CCGR7, 10); + clk[IMX5_CLK_UART5_IPG_GATE] = imx_clk_gate2("uart5_ipg_gate", "ipg", MXC_CCM_CCGR7, 12); + clk[IMX5_CLK_UART5_PER_GATE] = imx_clk_gate2("uart5_per_gate", "uart_root", MXC_CCM_CCGR7, 14); + clk[IMX5_CLK_GPC_DVFS] = imx_clk_gate2("gpc_dvfs", "dummy", MXC_CCM_CCGR5, 24); + + clk[IMX5_CLK_SSI_APM] = imx_clk_mux("ssi_apm", MXC_CCM_CSCMR1, 8, 2, ssi_apm_sels, ARRAY_SIZE(ssi_apm_sels)); + clk[IMX5_CLK_SSI1_ROOT_SEL] = imx_clk_mux("ssi1_root_sel", MXC_CCM_CSCMR1, 14, 2, ssi_clk_sels, ARRAY_SIZE(ssi_clk_sels)); + clk[IMX5_CLK_SSI2_ROOT_SEL] = imx_clk_mux("ssi2_root_sel", MXC_CCM_CSCMR1, 12, 2, ssi_clk_sels, ARRAY_SIZE(ssi_clk_sels)); + clk[IMX5_CLK_SSI3_ROOT_SEL] = imx_clk_mux("ssi3_root_sel", MXC_CCM_CSCMR1, 11, 1, ssi3_clk_sels, ARRAY_SIZE(ssi3_clk_sels)); + clk[IMX5_CLK_SSI_EXT1_SEL] = imx_clk_mux("ssi_ext1_sel", MXC_CCM_CSCMR1, 28, 2, ssi_clk_sels, ARRAY_SIZE(ssi_clk_sels)); + clk[IMX5_CLK_SSI_EXT2_SEL] = imx_clk_mux("ssi_ext2_sel", MXC_CCM_CSCMR1, 30, 2, ssi_clk_sels, ARRAY_SIZE(ssi_clk_sels)); + clk[IMX5_CLK_SSI_EXT1_COM_SEL] = imx_clk_mux("ssi_ext1_com_sel", MXC_CCM_CSCMR1, 0, 1, ssi_ext1_com_sels, ARRAY_SIZE(ssi_ext1_com_sels)); + clk[IMX5_CLK_SSI_EXT2_COM_SEL] = imx_clk_mux("ssi_ext2_com_sel", MXC_CCM_CSCMR1, 1, 1, ssi_ext2_com_sels, ARRAY_SIZE(ssi_ext2_com_sels)); + clk[IMX5_CLK_SSI1_ROOT_PRED] = imx_clk_divider("ssi1_root_pred", "ssi1_root_sel", MXC_CCM_CS1CDR, 6, 3); + clk[IMX5_CLK_SSI1_ROOT_PODF] = imx_clk_divider("ssi1_root_podf", "ssi1_root_pred", MXC_CCM_CS1CDR, 0, 6); + clk[IMX5_CLK_SSI2_ROOT_PRED] = imx_clk_divider("ssi2_root_pred", "ssi2_root_sel", MXC_CCM_CS2CDR, 6, 3); + clk[IMX5_CLK_SSI2_ROOT_PODF] = imx_clk_divider("ssi2_root_podf", "ssi2_root_pred", MXC_CCM_CS2CDR, 0, 6); + clk[IMX5_CLK_SSI_EXT1_PRED] = imx_clk_divider("ssi_ext1_pred", "ssi_ext1_sel", MXC_CCM_CS1CDR, 22, 3); + clk[IMX5_CLK_SSI_EXT1_PODF] = imx_clk_divider("ssi_ext1_podf", "ssi_ext1_pred", MXC_CCM_CS1CDR, 16, 6); + clk[IMX5_CLK_SSI_EXT2_PRED] = imx_clk_divider("ssi_ext2_pred", "ssi_ext2_sel", MXC_CCM_CS2CDR, 22, 3); + clk[IMX5_CLK_SSI_EXT2_PODF] = imx_clk_divider("ssi_ext2_podf", "ssi_ext2_pred", MXC_CCM_CS2CDR, 16, 6); + clk[IMX5_CLK_SSI1_ROOT_GATE] = imx_clk_gate2("ssi1_root_gate", "ssi1_root_podf", MXC_CCM_CCGR3, 18); + clk[IMX5_CLK_SSI2_ROOT_GATE] = imx_clk_gate2("ssi2_root_gate", "ssi2_root_podf", MXC_CCM_CCGR3, 22); + clk[IMX5_CLK_SSI3_ROOT_GATE] = imx_clk_gate2("ssi3_root_gate", "ssi3_root_sel", MXC_CCM_CCGR3, 26); + clk[IMX5_CLK_SSI_EXT1_GATE] = imx_clk_gate2("ssi_ext1_gate", "ssi_ext1_com_sel", MXC_CCM_CCGR3, 28); + clk[IMX5_CLK_SSI_EXT2_GATE] = imx_clk_gate2("ssi_ext2_gate", "ssi_ext2_com_sel", MXC_CCM_CCGR3, 30); + clk[IMX5_CLK_EPIT1_IPG_GATE] = imx_clk_gate2("epit1_ipg_gate", "ipg", MXC_CCM_CCGR2, 2); + clk[IMX5_CLK_EPIT1_HF_GATE] = imx_clk_gate2("epit1_hf_gate", "per_root", MXC_CCM_CCGR2, 4); + clk[IMX5_CLK_EPIT2_IPG_GATE] = imx_clk_gate2("epit2_ipg_gate", "ipg", MXC_CCM_CCGR2, 6); + clk[IMX5_CLK_EPIT2_HF_GATE] = imx_clk_gate2("epit2_hf_gate", "per_root", MXC_CCM_CCGR2, 8); + clk[IMX5_CLK_OWIRE_GATE] = imx_clk_gate2("owire_gate", "per_root", MXC_CCM_CCGR2, 22); + clk[IMX5_CLK_SRTC_GATE] = imx_clk_gate2("srtc_gate", "per_root", MXC_CCM_CCGR4, 28); + clk[IMX5_CLK_PATA_GATE] = imx_clk_gate2("pata_gate", "ipg", MXC_CCM_CCGR4, 0); + clk[IMX5_CLK_SPDIF0_SEL] = imx_clk_mux("spdif0_sel", MXC_CCM_CSCMR2, 0, 2, spdif_sel, ARRAY_SIZE(spdif_sel)); + clk[IMX5_CLK_SPDIF0_PRED] = imx_clk_divider("spdif0_pred", "spdif0_sel", MXC_CCM_CDCDR, 25, 3); + clk[IMX5_CLK_SPDIF0_PODF] = imx_clk_divider("spdif0_podf", "spdif0_pred", MXC_CCM_CDCDR, 19, 6); + clk[IMX5_CLK_SPDIF0_COM_SEL] = imx_clk_mux_flags("spdif0_com_sel", MXC_CCM_CSCMR2, 4, 1, + spdif0_com_sel, ARRAY_SIZE(spdif0_com_sel), CLK_SET_RATE_PARENT); + clk[IMX5_CLK_SPDIF0_GATE] = imx_clk_gate2("spdif0_gate", "spdif0_com_sel", MXC_CCM_CCGR5, 26); + clk[IMX5_CLK_SPDIF_IPG_GATE] = imx_clk_gate2("spdif_ipg_gate", "ipg", MXC_CCM_CCGR5, 30); + clk[IMX5_CLK_SAHARA_IPG_GATE] = imx_clk_gate2("sahara_ipg_gate", "ipg", MXC_CCM_CCGR4, 14); + clk[IMX5_CLK_SATA_REF] = imx_clk_fixed_factor("sata_ref", "usb_phy1_gate", 1, 1); + + clk_register_clkdev(clk[IMX5_CLK_CPU_PODF], NULL, "cpu0"); + clk_register_clkdev(clk[IMX5_CLK_GPC_DVFS], "gpc_dvfs", NULL); + + /* Set SDHC parents to be PLL2 */ + clk_set_parent(clk[IMX5_CLK_ESDHC_A_SEL], clk[IMX5_CLK_PLL2_SW]); + clk_set_parent(clk[IMX5_CLK_ESDHC_B_SEL], clk[IMX5_CLK_PLL2_SW]); + + /* move usb phy clk to 24MHz */ + clk_set_parent(clk[IMX5_CLK_USB_PHY_SEL], clk[IMX5_CLK_OSC]); + + clk_prepare_enable(clk[IMX5_CLK_GPC_DVFS]); + clk_prepare_enable(clk[IMX5_CLK_AHB_MAX]); /* esdhc3 */ + clk_prepare_enable(clk[IMX5_CLK_AIPS_TZ1]); + clk_prepare_enable(clk[IMX5_CLK_AIPS_TZ2]); /* fec */ + clk_prepare_enable(clk[IMX5_CLK_SPBA]); + clk_prepare_enable(clk[IMX5_CLK_EMI_FAST_GATE]); /* fec */ + clk_prepare_enable(clk[IMX5_CLK_EMI_SLOW_GATE]); /* eim */ + clk_prepare_enable(clk[IMX5_CLK_MIPI_HSC1_GATE]); + clk_prepare_enable(clk[IMX5_CLK_MIPI_HSC2_GATE]); + clk_prepare_enable(clk[IMX5_CLK_MIPI_ESC_GATE]); + clk_prepare_enable(clk[IMX5_CLK_MIPI_HSP_GATE]); + clk_prepare_enable(clk[IMX5_CLK_TMAX1]); + clk_prepare_enable(clk[IMX5_CLK_TMAX2]); /* esdhc2, fec */ + clk_prepare_enable(clk[IMX5_CLK_TMAX3]); /* esdhc1, esdhc4 */ +} + +static void __init mx50_clocks_init(struct device_node *np) +{ + void __iomem *ccm_base; + void __iomem *pll_base; + unsigned long r; + + pll_base = ioremap(MX53_DPLL1_BASE, SZ_16K); + WARN_ON(!pll_base); + clk[IMX5_CLK_PLL1_SW] = imx_clk_pllv2("pll1_sw", "osc", pll_base); + + pll_base = ioremap(MX53_DPLL2_BASE, SZ_16K); + WARN_ON(!pll_base); + clk[IMX5_CLK_PLL2_SW] = imx_clk_pllv2("pll2_sw", "osc", pll_base); + + pll_base = ioremap(MX53_DPLL3_BASE, SZ_16K); + WARN_ON(!pll_base); + clk[IMX5_CLK_PLL3_SW] = imx_clk_pllv2("pll3_sw", "osc", pll_base); + + ccm_base = of_iomap(np, 0); + WARN_ON(!ccm_base); + + mx5_clocks_common_init(ccm_base); + + clk[IMX5_CLK_LP_APM] = imx_clk_mux("lp_apm", MXC_CCM_CCSR, 10, 1, + lp_apm_sel, ARRAY_SIZE(lp_apm_sel)); + clk[IMX5_CLK_ESDHC1_PER_GATE] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2); + clk[IMX5_CLK_ESDHC2_PER_GATE] = imx_clk_gate2("esdhc2_per_gate", "esdhc_c_sel", MXC_CCM_CCGR3, 6); + clk[IMX5_CLK_ESDHC3_PER_GATE] = imx_clk_gate2("esdhc3_per_gate", "esdhc_b_podf", MXC_CCM_CCGR3, 10); + clk[IMX5_CLK_ESDHC4_PER_GATE] = imx_clk_gate2("esdhc4_per_gate", "esdhc_d_sel", MXC_CCM_CCGR3, 14); + clk[IMX5_CLK_USB_PHY1_GATE] = imx_clk_gate2("usb_phy1_gate", "usb_phy_sel", MXC_CCM_CCGR4, 10); + clk[IMX5_CLK_USB_PHY2_GATE] = imx_clk_gate2("usb_phy2_gate", "usb_phy_sel", MXC_CCM_CCGR4, 12); + clk[IMX5_CLK_I2C3_GATE] = imx_clk_gate2("i2c3_gate", "per_root", MXC_CCM_CCGR1, 22); + + clk[IMX5_CLK_CKO1_SEL] = imx_clk_mux("cko1_sel", MXC_CCM_CCOSR, 0, 4, + mx53_cko1_sel, ARRAY_SIZE(mx53_cko1_sel)); + clk[IMX5_CLK_CKO1_PODF] = imx_clk_divider("cko1_podf", "cko1_sel", MXC_CCM_CCOSR, 4, 3); + clk[IMX5_CLK_CKO1] = imx_clk_gate2("cko1", "cko1_podf", MXC_CCM_CCOSR, 7); + + clk[IMX5_CLK_CKO2_SEL] = imx_clk_mux("cko2_sel", MXC_CCM_CCOSR, 16, 5, + mx53_cko2_sel, ARRAY_SIZE(mx53_cko2_sel)); + clk[IMX5_CLK_CKO2_PODF] = imx_clk_divider("cko2_podf", "cko2_sel", MXC_CCM_CCOSR, 21, 3); + clk[IMX5_CLK_CKO2] = imx_clk_gate2("cko2", "cko2_podf", MXC_CCM_CCOSR, 24); + + imx_check_clocks(clk, ARRAY_SIZE(clk)); + + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + /* set SDHC root clock to 200MHZ*/ + clk_set_rate(clk[IMX5_CLK_ESDHC_A_PODF], 200000000); + clk_set_rate(clk[IMX5_CLK_ESDHC_B_PODF], 200000000); + + clk_prepare_enable(clk[IMX5_CLK_IIM_GATE]); + imx_print_silicon_rev("i.MX50", IMX_CHIP_REVISION_1_1); + clk_disable_unprepare(clk[IMX5_CLK_IIM_GATE]); + + r = clk_round_rate(clk[IMX5_CLK_USBOH3_PER_GATE], 54000000); + clk_set_rate(clk[IMX5_CLK_USBOH3_PER_GATE], r); +} +CLK_OF_DECLARE(imx50_ccm, "fsl,imx50-ccm", mx50_clocks_init); + +static void __init mx51_clocks_init(struct device_node *np) +{ + void __iomem *ccm_base; + void __iomem *pll_base; + u32 val; + + pll_base = ioremap(MX51_DPLL1_BASE, SZ_16K); + WARN_ON(!pll_base); + clk[IMX5_CLK_PLL1_SW] = imx_clk_pllv2("pll1_sw", "osc", pll_base); + + pll_base = ioremap(MX51_DPLL2_BASE, SZ_16K); + WARN_ON(!pll_base); + clk[IMX5_CLK_PLL2_SW] = imx_clk_pllv2("pll2_sw", "osc", pll_base); + + pll_base = ioremap(MX51_DPLL3_BASE, SZ_16K); + WARN_ON(!pll_base); + clk[IMX5_CLK_PLL3_SW] = imx_clk_pllv2("pll3_sw", "osc", pll_base); + + ccm_base = of_iomap(np, 0); + WARN_ON(!ccm_base); + + mx5_clocks_common_init(ccm_base); + + clk[IMX5_CLK_LP_APM] = imx_clk_mux("lp_apm", MXC_CCM_CCSR, 9, 1, + lp_apm_sel, ARRAY_SIZE(lp_apm_sel)); + clk[IMX5_CLK_IPU_DI0_SEL] = imx_clk_mux("ipu_di0_sel", MXC_CCM_CSCMR2, 26, 3, + mx51_ipu_di0_sel, ARRAY_SIZE(mx51_ipu_di0_sel)); + clk[IMX5_CLK_IPU_DI1_SEL] = imx_clk_mux("ipu_di1_sel", MXC_CCM_CSCMR2, 29, 3, + mx51_ipu_di1_sel, ARRAY_SIZE(mx51_ipu_di1_sel)); + clk[IMX5_CLK_TVE_EXT_SEL] = imx_clk_mux_flags("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1, + mx51_tve_ext_sel, ARRAY_SIZE(mx51_tve_ext_sel), CLK_SET_RATE_PARENT); + clk[IMX5_CLK_TVE_SEL] = imx_clk_mux("tve_sel", MXC_CCM_CSCMR1, 7, 1, + mx51_tve_sel, ARRAY_SIZE(mx51_tve_sel)); + clk[IMX5_CLK_TVE_GATE] = imx_clk_gate2("tve_gate", "tve_sel", MXC_CCM_CCGR2, 30); + clk[IMX5_CLK_TVE_PRED] = imx_clk_divider("tve_pred", "pll3_sw", MXC_CCM_CDCDR, 28, 3); + clk[IMX5_CLK_ESDHC1_PER_GATE] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2); + clk[IMX5_CLK_ESDHC2_PER_GATE] = imx_clk_gate2("esdhc2_per_gate", "esdhc_b_podf", MXC_CCM_CCGR3, 6); + clk[IMX5_CLK_ESDHC3_PER_GATE] = imx_clk_gate2("esdhc3_per_gate", "esdhc_c_sel", MXC_CCM_CCGR3, 10); + clk[IMX5_CLK_ESDHC4_PER_GATE] = imx_clk_gate2("esdhc4_per_gate", "esdhc_d_sel", MXC_CCM_CCGR3, 14); + clk[IMX5_CLK_USB_PHY_GATE] = imx_clk_gate2("usb_phy_gate", "usb_phy_sel", MXC_CCM_CCGR2, 0); + clk[IMX5_CLK_HSI2C_GATE] = imx_clk_gate2("hsi2c_gate", "ipg", MXC_CCM_CCGR1, 22); + clk[IMX5_CLK_MIPI_HSC1_GATE] = imx_clk_gate2("mipi_hsc1_gate", "ipg", MXC_CCM_CCGR4, 6); + clk[IMX5_CLK_MIPI_HSC2_GATE] = imx_clk_gate2("mipi_hsc2_gate", "ipg", MXC_CCM_CCGR4, 8); + clk[IMX5_CLK_MIPI_ESC_GATE] = imx_clk_gate2("mipi_esc_gate", "ipg", MXC_CCM_CCGR4, 10); + clk[IMX5_CLK_MIPI_HSP_GATE] = imx_clk_gate2("mipi_hsp_gate", "ipg", MXC_CCM_CCGR4, 12); + clk[IMX5_CLK_SPDIF_XTAL_SEL] = imx_clk_mux("spdif_xtal_sel", MXC_CCM_CSCMR1, 2, 2, + mx51_spdif_xtal_sel, ARRAY_SIZE(mx51_spdif_xtal_sel)); + clk[IMX5_CLK_SPDIF1_SEL] = imx_clk_mux("spdif1_sel", MXC_CCM_CSCMR2, 2, 2, + spdif_sel, ARRAY_SIZE(spdif_sel)); + clk[IMX5_CLK_SPDIF1_PRED] = imx_clk_divider("spdif1_pred", "spdif1_sel", MXC_CCM_CDCDR, 16, 3); + clk[IMX5_CLK_SPDIF1_PODF] = imx_clk_divider("spdif1_podf", "spdif1_pred", MXC_CCM_CDCDR, 9, 6); + clk[IMX5_CLK_SPDIF1_COM_SEL] = imx_clk_mux("spdif1_com_sel", MXC_CCM_CSCMR2, 5, 1, + mx51_spdif1_com_sel, ARRAY_SIZE(mx51_spdif1_com_sel)); + clk[IMX5_CLK_SPDIF1_GATE] = imx_clk_gate2("spdif1_gate", "spdif1_com_sel", MXC_CCM_CCGR5, 28); + + imx_check_clocks(clk, ARRAY_SIZE(clk)); + + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + /* set the usboh3 parent to pll2_sw */ + clk_set_parent(clk[IMX5_CLK_USBOH3_SEL], clk[IMX5_CLK_PLL2_SW]); + + /* set SDHC root clock to 166.25MHZ*/ + clk_set_rate(clk[IMX5_CLK_ESDHC_A_PODF], 166250000); + clk_set_rate(clk[IMX5_CLK_ESDHC_B_PODF], 166250000); + + clk_prepare_enable(clk[IMX5_CLK_IIM_GATE]); + imx_print_silicon_rev("i.MX51", mx51_revision()); + clk_disable_unprepare(clk[IMX5_CLK_IIM_GATE]); + + /* + * Reference Manual says: Functionality of CCDR[18] and CLPCR[23] is no + * longer supported. Set to one for better power saving. + * + * The effect of not setting these bits is that MIPI clocks can't be + * enabled without the IPU clock being enabled aswell. + */ + val = readl(MXC_CCM_CCDR); + val |= 1 << 18; + writel(val, MXC_CCM_CCDR); + + val = readl(MXC_CCM_CLPCR); + val |= 1 << 23; + writel(val, MXC_CCM_CLPCR); +} +CLK_OF_DECLARE(imx51_ccm, "fsl,imx51-ccm", mx51_clocks_init); + +static void __init mx53_clocks_init(struct device_node *np) +{ + void __iomem *ccm_base; + void __iomem *pll_base; + unsigned long r; + + pll_base = ioremap(MX53_DPLL1_BASE, SZ_16K); + WARN_ON(!pll_base); + clk[IMX5_CLK_PLL1_SW] = imx_clk_pllv2("pll1_sw", "osc", pll_base); + + pll_base = ioremap(MX53_DPLL2_BASE, SZ_16K); + WARN_ON(!pll_base); + clk[IMX5_CLK_PLL2_SW] = imx_clk_pllv2("pll2_sw", "osc", pll_base); + + pll_base = ioremap(MX53_DPLL3_BASE, SZ_16K); + WARN_ON(!pll_base); + clk[IMX5_CLK_PLL3_SW] = imx_clk_pllv2("pll3_sw", "osc", pll_base); + + pll_base = ioremap(MX53_DPLL4_BASE, SZ_16K); + WARN_ON(!pll_base); + clk[IMX5_CLK_PLL4_SW] = imx_clk_pllv2("pll4_sw", "osc", pll_base); + + ccm_base = of_iomap(np, 0); + WARN_ON(!ccm_base); + + mx5_clocks_common_init(ccm_base); + + clk[IMX5_CLK_LP_APM] = imx_clk_mux("lp_apm", MXC_CCM_CCSR, 10, 1, + lp_apm_sel, ARRAY_SIZE(lp_apm_sel)); + clk[IMX5_CLK_LDB_DI1_DIV_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7); + clk[IMX5_CLK_LDB_DI1_DIV] = imx_clk_divider_flags("ldb_di1_div", "ldb_di1_div_3_5", MXC_CCM_CSCMR2, 11, 1, 0); + clk[IMX5_CLK_LDB_DI1_SEL] = imx_clk_mux_flags("ldb_di1_sel", MXC_CCM_CSCMR2, 9, 1, + mx53_ldb_di1_sel, ARRAY_SIZE(mx53_ldb_di1_sel), CLK_SET_RATE_PARENT); + clk[IMX5_CLK_DI_PLL4_PODF] = imx_clk_divider("di_pll4_podf", "pll4_sw", MXC_CCM_CDCDR, 16, 3); + clk[IMX5_CLK_LDB_DI0_DIV_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7); + clk[IMX5_CLK_LDB_DI0_DIV] = imx_clk_divider_flags("ldb_di0_div", "ldb_di0_div_3_5", MXC_CCM_CSCMR2, 10, 1, 0); + clk[IMX5_CLK_LDB_DI0_SEL] = imx_clk_mux_flags("ldb_di0_sel", MXC_CCM_CSCMR2, 8, 1, + mx53_ldb_di0_sel, ARRAY_SIZE(mx53_ldb_di0_sel), CLK_SET_RATE_PARENT); + clk[IMX5_CLK_LDB_DI0_GATE] = imx_clk_gate2("ldb_di0_gate", "ldb_di0_div", MXC_CCM_CCGR6, 28); + clk[IMX5_CLK_LDB_DI1_GATE] = imx_clk_gate2("ldb_di1_gate", "ldb_di1_div", MXC_CCM_CCGR6, 30); + clk[IMX5_CLK_IPU_DI0_SEL] = imx_clk_mux("ipu_di0_sel", MXC_CCM_CSCMR2, 26, 3, + mx53_ipu_di0_sel, ARRAY_SIZE(mx53_ipu_di0_sel)); + clk[IMX5_CLK_IPU_DI1_SEL] = imx_clk_mux("ipu_di1_sel", MXC_CCM_CSCMR2, 29, 3, + mx53_ipu_di1_sel, ARRAY_SIZE(mx53_ipu_di1_sel)); + clk[IMX5_CLK_TVE_EXT_SEL] = imx_clk_mux_flags("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1, + mx53_tve_ext_sel, ARRAY_SIZE(mx53_tve_ext_sel), CLK_SET_RATE_PARENT); + clk[IMX5_CLK_TVE_GATE] = imx_clk_gate2("tve_gate", "tve_pred", MXC_CCM_CCGR2, 30); + clk[IMX5_CLK_TVE_PRED] = imx_clk_divider("tve_pred", "tve_ext_sel", MXC_CCM_CDCDR, 28, 3); + clk[IMX5_CLK_ESDHC1_PER_GATE] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2); + clk[IMX5_CLK_ESDHC2_PER_GATE] = imx_clk_gate2("esdhc2_per_gate", "esdhc_c_sel", MXC_CCM_CCGR3, 6); + clk[IMX5_CLK_ESDHC3_PER_GATE] = imx_clk_gate2("esdhc3_per_gate", "esdhc_b_podf", MXC_CCM_CCGR3, 10); + clk[IMX5_CLK_ESDHC4_PER_GATE] = imx_clk_gate2("esdhc4_per_gate", "esdhc_d_sel", MXC_CCM_CCGR3, 14); + clk[IMX5_CLK_USB_PHY1_GATE] = imx_clk_gate2("usb_phy1_gate", "usb_phy_sel", MXC_CCM_CCGR4, 10); + clk[IMX5_CLK_USB_PHY2_GATE] = imx_clk_gate2("usb_phy2_gate", "usb_phy_sel", MXC_CCM_CCGR4, 12); + clk[IMX5_CLK_CAN_SEL] = imx_clk_mux("can_sel", MXC_CCM_CSCMR2, 6, 2, + mx53_can_sel, ARRAY_SIZE(mx53_can_sel)); + clk[IMX5_CLK_CAN1_SERIAL_GATE] = imx_clk_gate2("can1_serial_gate", "can_sel", MXC_CCM_CCGR6, 22); + clk[IMX5_CLK_CAN1_IPG_GATE] = imx_clk_gate2("can1_ipg_gate", "ipg", MXC_CCM_CCGR6, 20); + clk[IMX5_CLK_OCRAM] = imx_clk_gate2("ocram", "ahb", MXC_CCM_CCGR6, 2); + clk[IMX5_CLK_CAN2_SERIAL_GATE] = imx_clk_gate2("can2_serial_gate", "can_sel", MXC_CCM_CCGR4, 8); + clk[IMX5_CLK_CAN2_IPG_GATE] = imx_clk_gate2("can2_ipg_gate", "ipg", MXC_CCM_CCGR4, 6); + clk[IMX5_CLK_I2C3_GATE] = imx_clk_gate2("i2c3_gate", "per_root", MXC_CCM_CCGR1, 22); + clk[IMX5_CLK_SATA_GATE] = imx_clk_gate2("sata_gate", "ipg", MXC_CCM_CCGR4, 2); + + clk[IMX5_CLK_CKO1_SEL] = imx_clk_mux("cko1_sel", MXC_CCM_CCOSR, 0, 4, + mx53_cko1_sel, ARRAY_SIZE(mx53_cko1_sel)); + clk[IMX5_CLK_CKO1_PODF] = imx_clk_divider("cko1_podf", "cko1_sel", MXC_CCM_CCOSR, 4, 3); + clk[IMX5_CLK_CKO1] = imx_clk_gate2("cko1", "cko1_podf", MXC_CCM_CCOSR, 7); + + clk[IMX5_CLK_CKO2_SEL] = imx_clk_mux("cko2_sel", MXC_CCM_CCOSR, 16, 5, + mx53_cko2_sel, ARRAY_SIZE(mx53_cko2_sel)); + clk[IMX5_CLK_CKO2_PODF] = imx_clk_divider("cko2_podf", "cko2_sel", MXC_CCM_CCOSR, 21, 3); + clk[IMX5_CLK_CKO2] = imx_clk_gate2("cko2", "cko2_podf", MXC_CCM_CCOSR, 24); + clk[IMX5_CLK_SPDIF_XTAL_SEL] = imx_clk_mux("spdif_xtal_sel", MXC_CCM_CSCMR1, 2, 2, + mx53_spdif_xtal_sel, ARRAY_SIZE(mx53_spdif_xtal_sel)); + clk[IMX5_CLK_ARM] = imx_clk_cpu("arm", "cpu_podf", + clk[IMX5_CLK_CPU_PODF], + clk[IMX5_CLK_CPU_PODF_SEL], + clk[IMX5_CLK_PLL1_SW], + clk[IMX5_CLK_STEP_SEL]); + + imx_check_clocks(clk, ARRAY_SIZE(clk)); + + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + /* set SDHC root clock to 200MHZ*/ + clk_set_rate(clk[IMX5_CLK_ESDHC_A_PODF], 200000000); + clk_set_rate(clk[IMX5_CLK_ESDHC_B_PODF], 200000000); + + /* move can bus clk to 24MHz */ + clk_set_parent(clk[IMX5_CLK_CAN_SEL], clk[IMX5_CLK_LP_APM]); + + /* make sure step clock is running from 24MHz */ + clk_set_parent(clk[IMX5_CLK_STEP_SEL], clk[IMX5_CLK_LP_APM]); + + clk_prepare_enable(clk[IMX5_CLK_IIM_GATE]); + imx_print_silicon_rev("i.MX53", mx53_revision()); + clk_disable_unprepare(clk[IMX5_CLK_IIM_GATE]); + + r = clk_round_rate(clk[IMX5_CLK_USBOH3_PER_GATE], 54000000); + clk_set_rate(clk[IMX5_CLK_USBOH3_PER_GATE], r); +} +CLK_OF_DECLARE(imx53_ccm, "fsl,imx53-ccm", mx53_clocks_init); diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c new file mode 100644 index 000000000000..d046f8e43de8 --- /dev/null +++ b/drivers/clk/imx/clk-imx6q.c @@ -0,0 +1,538 @@ +/* + * Copyright 2011-2013 Freescale Semiconductor, Inc. + * Copyright 2011 Linaro Ltd. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/init.h> +#include <linux/types.h> +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <soc/imx/revision.h> +#include <dt-bindings/clock/imx6qdl-clock.h> + +#include "clk.h" + +static const char *step_sels[] = { "osc", "pll2_pfd2_396m", }; +static const char *pll1_sw_sels[] = { "pll1_sys", "step", }; +static const char *periph_pre_sels[] = { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll2_198m", }; +static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", "osc", "dummy", }; +static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "pll2_bus", }; +static const char *periph_sels[] = { "periph_pre", "periph_clk2", }; +static const char *periph2_sels[] = { "periph2_pre", "periph2_clk2", }; +static const char *axi_sels[] = { "periph", "pll2_pfd2_396m", "periph", "pll3_pfd1_540m", }; +static const char *audio_sels[] = { "pll4_audio_div", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", }; +static const char *gpu_axi_sels[] = { "axi", "ahb", }; +static const char *gpu2d_core_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", }; +static const char *gpu3d_core_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd2_396m", }; +static const char *gpu3d_shader_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll3_pfd0_720m", }; +static const char *ipu_sels[] = { "mmdc_ch0_axi", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", }; +static const char *ldb_di_sels[] = { "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "mmdc_ch1_axi", "pll3_usb_otg", }; +static const char *ipu_di_pre_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd1_540m", }; +static const char *ipu1_di0_sels[] = { "ipu1_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", }; +static const char *ipu1_di1_sels[] = { "ipu1_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", }; +static const char *ipu2_di0_sels[] = { "ipu2_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", }; +static const char *ipu2_di1_sels[] = { "ipu2_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", }; +static const char *hsi_tx_sels[] = { "pll3_120m", "pll2_pfd2_396m", }; +static const char *pcie_axi_sels[] = { "axi", "ahb", }; +static const char *ssi_sels[] = { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_audio_div", }; +static const char *usdhc_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", }; +static const char *enfc_sels[] = { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", }; +static const char *eim_sels[] = { "pll2_pfd2_396m", "pll3_usb_otg", "axi", "pll2_pfd0_352m", }; +static const char *eim_slow_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", }; +static const char *vdo_axi_sels[] = { "axi", "ahb", }; +static const char *vpu_axi_sels[] = { "axi", "pll2_pfd2_396m", "pll2_pfd0_352m", }; +static const char *cko1_sels[] = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video_div", + "dummy", "axi", "enfc", "ipu1_di0", "ipu1_di1", "ipu2_di0", + "ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_audio_div", }; +static const char *cko2_sels[] = { + "mmdc_ch0_axi", "mmdc_ch1_axi", "usdhc4", "usdhc1", + "gpu2d_axi", "dummy", "ecspi_root", "gpu3d_axi", + "usdhc3", "dummy", "arm", "ipu1", + "ipu2", "vdo_axi", "osc", "gpu2d_core", + "gpu3d_core", "usdhc2", "ssi1", "ssi2", + "ssi3", "gpu3d_shader", "vpu_axi", "can_root", + "ldb_di0", "ldb_di1", "esai_extal", "eim_slow", + "uart_serial", "spdif", "asrc", "hsi_tx", +}; +static const char *cko_sels[] = { "cko1", "cko2", }; +static const char *lvds_sels[] = { + "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", + "pll4_audio", "pll5_video", "pll8_mlb", "enet_ref", + "pcie_ref_125m", "sata_ref_100m", +}; +static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", "lvds2_in", "dummy", }; +static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", }; +static const char *pll2_bypass_sels[] = { "pll2", "pll2_bypass_src", }; +static const char *pll3_bypass_sels[] = { "pll3", "pll3_bypass_src", }; +static const char *pll4_bypass_sels[] = { "pll4", "pll4_bypass_src", }; +static const char *pll5_bypass_sels[] = { "pll5", "pll5_bypass_src", }; +static const char *pll6_bypass_sels[] = { "pll6", "pll6_bypass_src", }; +static const char *pll7_bypass_sels[] = { "pll7", "pll7_bypass_src", }; + +static struct clk *clk[IMX6QDL_CLK_END]; +static struct clk_onecell_data clk_data; + +static unsigned int const clks_init_on[] __initconst = { + IMX6QDL_CLK_MMDC_CH0_AXI, + IMX6QDL_CLK_ROM, + IMX6QDL_CLK_ARM, +}; + +static struct clk_div_table clk_enet_ref_table[] = { + { .val = 0, .div = 20, }, + { .val = 1, .div = 10, }, + { .val = 2, .div = 5, }, + { .val = 3, .div = 4, }, + { /* sentinel */ } +}; + +static struct clk_div_table post_div_table[] = { + { .val = 2, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 0, .div = 4, }, + { /* sentinel */ } +}; + +static struct clk_div_table video_div_table[] = { + { .val = 0, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 2, .div = 1, }, + { .val = 3, .div = 4, }, + { /* sentinel */ } +}; + +static unsigned int share_count_esai; +static unsigned int share_count_asrc; +static unsigned int share_count_ssi1; +static unsigned int share_count_ssi2; +static unsigned int share_count_ssi3; +static unsigned int share_count_mipi_core_cfg; + +static inline int clk_on_imx6q(void) +{ + return of_machine_is_compatible("fsl,imx6q"); +} + +static inline int clk_on_imx6dl(void) +{ + return of_machine_is_compatible("fsl,imx6dl"); +} + +static void __init imx6q_clocks_init(struct device_node *ccm_node) +{ + struct device_node *np; + void __iomem *base; + int i; + int ret; + + clk[IMX6QDL_CLK_DUMMY] = imx_clk_fixed("dummy", 0); + clk[IMX6QDL_CLK_CKIL] = imx_obtain_fixed_clock("ckil", 0); + clk[IMX6QDL_CLK_CKIH] = imx_obtain_fixed_clock("ckih1", 0); + clk[IMX6QDL_CLK_OSC] = imx_obtain_fixed_clock("osc", 0); + /* Clock source from external clock via CLK1/2 PADs */ + clk[IMX6QDL_CLK_ANACLK1] = imx_obtain_fixed_clock("anaclk1", 0); + clk[IMX6QDL_CLK_ANACLK2] = imx_obtain_fixed_clock("anaclk2", 0); + + np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop"); + base = of_iomap(np, 0); + WARN_ON(!base); + + /* Audio/video PLL post dividers do not work on i.MX6q revision 1.0 */ + if (clk_on_imx6q() && imx_get_soc_revision() == IMX_CHIP_REVISION_1_0) { + post_div_table[1].div = 1; + post_div_table[2].div = 1; + video_div_table[1].div = 1; + video_div_table[3].div = 1; + } + + clk[IMX6QDL_PLL1_BYPASS_SRC] = imx_clk_mux("pll1_bypass_src", base + 0x00, 14, 2, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[IMX6QDL_PLL2_BYPASS_SRC] = imx_clk_mux("pll2_bypass_src", base + 0x30, 14, 2, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[IMX6QDL_PLL3_BYPASS_SRC] = imx_clk_mux("pll3_bypass_src", base + 0x10, 14, 2, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[IMX6QDL_PLL4_BYPASS_SRC] = imx_clk_mux("pll4_bypass_src", base + 0x70, 14, 2, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[IMX6QDL_PLL5_BYPASS_SRC] = imx_clk_mux("pll5_bypass_src", base + 0xa0, 14, 2, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[IMX6QDL_PLL6_BYPASS_SRC] = imx_clk_mux("pll6_bypass_src", base + 0xe0, 14, 2, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[IMX6QDL_PLL7_BYPASS_SRC] = imx_clk_mux("pll7_bypass_src", base + 0x20, 14, 2, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + + /* type name parent_name base div_mask */ + clk[IMX6QDL_CLK_PLL1] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1", "pll1_bypass_src", base + 0x00, 0x7f); + clk[IMX6QDL_CLK_PLL2] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2", "pll2_bypass_src", base + 0x30, 0x1); + clk[IMX6QDL_CLK_PLL3] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3", "pll3_bypass_src", base + 0x10, 0x3); + clk[IMX6QDL_CLK_PLL4] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4", "pll4_bypass_src", base + 0x70, 0x7f); + clk[IMX6QDL_CLK_PLL5] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5", "pll5_bypass_src", base + 0xa0, 0x7f); + clk[IMX6QDL_CLK_PLL6] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6", "pll6_bypass_src", base + 0xe0, 0x3); + clk[IMX6QDL_CLK_PLL7] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7", "pll7_bypass_src", base + 0x20, 0x3); + + clk[IMX6QDL_PLL1_BYPASS] = imx_clk_mux_flags("pll1_bypass", base + 0x00, 16, 1, pll1_bypass_sels, ARRAY_SIZE(pll1_bypass_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_PLL2_BYPASS] = imx_clk_mux_flags("pll2_bypass", base + 0x30, 16, 1, pll2_bypass_sels, ARRAY_SIZE(pll2_bypass_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_PLL3_BYPASS] = imx_clk_mux_flags("pll3_bypass", base + 0x10, 16, 1, pll3_bypass_sels, ARRAY_SIZE(pll3_bypass_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_PLL4_BYPASS] = imx_clk_mux_flags("pll4_bypass", base + 0x70, 16, 1, pll4_bypass_sels, ARRAY_SIZE(pll4_bypass_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_PLL5_BYPASS] = imx_clk_mux_flags("pll5_bypass", base + 0xa0, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_PLL6_BYPASS] = imx_clk_mux_flags("pll6_bypass", base + 0xe0, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_PLL7_BYPASS] = imx_clk_mux_flags("pll7_bypass", base + 0x20, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels), CLK_SET_RATE_PARENT); + + /* Do not bypass PLLs initially */ + clk_set_parent(clk[IMX6QDL_PLL1_BYPASS], clk[IMX6QDL_CLK_PLL1]); + clk_set_parent(clk[IMX6QDL_PLL2_BYPASS], clk[IMX6QDL_CLK_PLL2]); + clk_set_parent(clk[IMX6QDL_PLL3_BYPASS], clk[IMX6QDL_CLK_PLL3]); + clk_set_parent(clk[IMX6QDL_PLL4_BYPASS], clk[IMX6QDL_CLK_PLL4]); + clk_set_parent(clk[IMX6QDL_PLL5_BYPASS], clk[IMX6QDL_CLK_PLL5]); + clk_set_parent(clk[IMX6QDL_PLL6_BYPASS], clk[IMX6QDL_CLK_PLL6]); + clk_set_parent(clk[IMX6QDL_PLL7_BYPASS], clk[IMX6QDL_CLK_PLL7]); + + clk[IMX6QDL_CLK_PLL1_SYS] = imx_clk_gate("pll1_sys", "pll1_bypass", base + 0x00, 13); + clk[IMX6QDL_CLK_PLL2_BUS] = imx_clk_gate("pll2_bus", "pll2_bypass", base + 0x30, 13); + clk[IMX6QDL_CLK_PLL3_USB_OTG] = imx_clk_gate("pll3_usb_otg", "pll3_bypass", base + 0x10, 13); + clk[IMX6QDL_CLK_PLL4_AUDIO] = imx_clk_gate("pll4_audio", "pll4_bypass", base + 0x70, 13); + clk[IMX6QDL_CLK_PLL5_VIDEO] = imx_clk_gate("pll5_video", "pll5_bypass", base + 0xa0, 13); + clk[IMX6QDL_CLK_PLL6_ENET] = imx_clk_gate("pll6_enet", "pll6_bypass", base + 0xe0, 13); + clk[IMX6QDL_CLK_PLL7_USB_HOST] = imx_clk_gate("pll7_usb_host", "pll7_bypass", base + 0x20, 13); + + /* + * Bit 20 is the reserved and read-only bit, we do this only for: + * - Do nothing for usbphy clk_enable/disable + * - Keep refcount when do usbphy clk_enable/disable, in that case, + * the clk framework may need to enable/disable usbphy's parent + */ + clk[IMX6QDL_CLK_USBPHY1] = imx_clk_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20); + clk[IMX6QDL_CLK_USBPHY2] = imx_clk_gate("usbphy2", "pll7_usb_host", base + 0x20, 20); + + /* + * usbphy*_gate needs to be on after system boots up, and software + * never needs to control it anymore. + */ + clk[IMX6QDL_CLK_USBPHY1_GATE] = imx_clk_gate("usbphy1_gate", "dummy", base + 0x10, 6); + clk[IMX6QDL_CLK_USBPHY2_GATE] = imx_clk_gate("usbphy2_gate", "dummy", base + 0x20, 6); + + clk[IMX6QDL_CLK_SATA_REF] = imx_clk_fixed_factor("sata_ref", "pll6_enet", 1, 5); + clk[IMX6QDL_CLK_PCIE_REF] = imx_clk_fixed_factor("pcie_ref", "pll6_enet", 1, 4); + + clk[IMX6QDL_CLK_SATA_REF_100M] = imx_clk_gate("sata_ref_100m", "sata_ref", base + 0xe0, 20); + clk[IMX6QDL_CLK_PCIE_REF_125M] = imx_clk_gate("pcie_ref_125m", "pcie_ref", base + 0xe0, 19); + + clk[IMX6QDL_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0, + base + 0xe0, 0, 2, 0, clk_enet_ref_table, + &imx_ccm_lock); + + clk[IMX6QDL_CLK_LVDS1_SEL] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); + clk[IMX6QDL_CLK_LVDS2_SEL] = imx_clk_mux("lvds2_sel", base + 0x160, 5, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); + + /* + * lvds1_gate and lvds2_gate are pseudo-gates. Both can be + * independently configured as clock inputs or outputs. We treat + * the "output_enable" bit as a gate, even though it's really just + * enabling clock output. + */ + clk[IMX6QDL_CLK_LVDS1_GATE] = imx_clk_gate_exclusive("lvds1_gate", "lvds1_sel", base + 0x160, 10, BIT(12)); + clk[IMX6QDL_CLK_LVDS2_GATE] = imx_clk_gate_exclusive("lvds2_gate", "lvds2_sel", base + 0x160, 11, BIT(13)); + + clk[IMX6QDL_CLK_LVDS1_IN] = imx_clk_gate_exclusive("lvds1_in", "anaclk1", base + 0x160, 12, BIT(10)); + clk[IMX6QDL_CLK_LVDS2_IN] = imx_clk_gate_exclusive("lvds2_in", "anaclk2", base + 0x160, 13, BIT(11)); + + /* name parent_name reg idx */ + clk[IMX6QDL_CLK_PLL2_PFD0_352M] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus", base + 0x100, 0); + clk[IMX6QDL_CLK_PLL2_PFD1_594M] = imx_clk_pfd("pll2_pfd1_594m", "pll2_bus", base + 0x100, 1); + clk[IMX6QDL_CLK_PLL2_PFD2_396M] = imx_clk_pfd("pll2_pfd2_396m", "pll2_bus", base + 0x100, 2); + clk[IMX6QDL_CLK_PLL3_PFD0_720M] = imx_clk_pfd("pll3_pfd0_720m", "pll3_usb_otg", base + 0xf0, 0); + clk[IMX6QDL_CLK_PLL3_PFD1_540M] = imx_clk_pfd("pll3_pfd1_540m", "pll3_usb_otg", base + 0xf0, 1); + clk[IMX6QDL_CLK_PLL3_PFD2_508M] = imx_clk_pfd("pll3_pfd2_508m", "pll3_usb_otg", base + 0xf0, 2); + clk[IMX6QDL_CLK_PLL3_PFD3_454M] = imx_clk_pfd("pll3_pfd3_454m", "pll3_usb_otg", base + 0xf0, 3); + + /* name parent_name mult div */ + clk[IMX6QDL_CLK_PLL2_198M] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2_396m", 1, 2); + clk[IMX6QDL_CLK_PLL3_120M] = imx_clk_fixed_factor("pll3_120m", "pll3_usb_otg", 1, 4); + clk[IMX6QDL_CLK_PLL3_80M] = imx_clk_fixed_factor("pll3_80m", "pll3_usb_otg", 1, 6); + clk[IMX6QDL_CLK_PLL3_60M] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8); + clk[IMX6QDL_CLK_TWD] = imx_clk_fixed_factor("twd", "arm", 1, 2); + clk[IMX6QDL_CLK_GPT_3M] = imx_clk_fixed_factor("gpt_3m", "osc", 1, 8); + clk[IMX6QDL_CLK_VIDEO_27M] = imx_clk_fixed_factor("video_27m", "pll3_pfd1_540m", 1, 20); + if (clk_on_imx6dl()) { + clk[IMX6QDL_CLK_GPU2D_AXI] = imx_clk_fixed_factor("gpu2d_axi", "mmdc_ch0_axi_podf", 1, 1); + clk[IMX6QDL_CLK_GPU3D_AXI] = imx_clk_fixed_factor("gpu3d_axi", "mmdc_ch0_axi_podf", 1, 1); + } + + clk[IMX6QDL_CLK_PLL4_POST_DIV] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock); + clk[IMX6QDL_CLK_PLL4_AUDIO_DIV] = clk_register_divider(NULL, "pll4_audio_div", "pll4_post_div", CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock); + clk[IMX6QDL_CLK_PLL5_POST_DIV] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock); + clk[IMX6QDL_CLK_PLL5_VIDEO_DIV] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", CLK_SET_RATE_PARENT, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock); + + np = ccm_node; + base = of_iomap(np, 0); + WARN_ON(!base); + + /* name reg shift width parent_names num_parents */ + clk[IMX6QDL_CLK_STEP] = imx_clk_mux("step", base + 0xc, 8, 1, step_sels, ARRAY_SIZE(step_sels)); + clk[IMX6QDL_CLK_PLL1_SW] = imx_clk_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels)); + clk[IMX6QDL_CLK_PERIPH_PRE] = imx_clk_mux("periph_pre", base + 0x18, 18, 2, periph_pre_sels, ARRAY_SIZE(periph_pre_sels)); + clk[IMX6QDL_CLK_PERIPH2_PRE] = imx_clk_mux("periph2_pre", base + 0x18, 21, 2, periph_pre_sels, ARRAY_SIZE(periph_pre_sels)); + clk[IMX6QDL_CLK_PERIPH_CLK2_SEL] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels)); + clk[IMX6QDL_CLK_PERIPH2_CLK2_SEL] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels)); + clk[IMX6QDL_CLK_AXI_SEL] = imx_clk_mux("axi_sel", base + 0x14, 6, 2, axi_sels, ARRAY_SIZE(axi_sels)); + clk[IMX6QDL_CLK_ESAI_SEL] = imx_clk_mux("esai_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels)); + clk[IMX6QDL_CLK_ASRC_SEL] = imx_clk_mux("asrc_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels)); + clk[IMX6QDL_CLK_SPDIF_SEL] = imx_clk_mux("spdif_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels)); + if (clk_on_imx6q()) { + clk[IMX6QDL_CLK_GPU2D_AXI] = imx_clk_mux("gpu2d_axi", base + 0x18, 0, 1, gpu_axi_sels, ARRAY_SIZE(gpu_axi_sels)); + clk[IMX6QDL_CLK_GPU3D_AXI] = imx_clk_mux("gpu3d_axi", base + 0x18, 1, 1, gpu_axi_sels, ARRAY_SIZE(gpu_axi_sels)); + } + clk[IMX6QDL_CLK_GPU2D_CORE_SEL] = imx_clk_mux("gpu2d_core_sel", base + 0x18, 16, 2, gpu2d_core_sels, ARRAY_SIZE(gpu2d_core_sels)); + clk[IMX6QDL_CLK_GPU3D_CORE_SEL] = imx_clk_mux("gpu3d_core_sel", base + 0x18, 4, 2, gpu3d_core_sels, ARRAY_SIZE(gpu3d_core_sels)); + clk[IMX6QDL_CLK_GPU3D_SHADER_SEL] = imx_clk_mux("gpu3d_shader_sel", base + 0x18, 8, 2, gpu3d_shader_sels, ARRAY_SIZE(gpu3d_shader_sels)); + clk[IMX6QDL_CLK_IPU1_SEL] = imx_clk_mux("ipu1_sel", base + 0x3c, 9, 2, ipu_sels, ARRAY_SIZE(ipu_sels)); + clk[IMX6QDL_CLK_IPU2_SEL] = imx_clk_mux("ipu2_sel", base + 0x3c, 14, 2, ipu_sels, ARRAY_SIZE(ipu_sels)); + clk[IMX6QDL_CLK_LDB_DI0_SEL] = imx_clk_mux_flags("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_CLK_LDB_DI1_SEL] = imx_clk_mux_flags("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_CLK_IPU1_DI0_PRE_SEL] = imx_clk_mux_flags("ipu1_di0_pre_sel", base + 0x34, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_CLK_IPU1_DI1_PRE_SEL] = imx_clk_mux_flags("ipu1_di1_pre_sel", base + 0x34, 15, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_CLK_IPU2_DI0_PRE_SEL] = imx_clk_mux_flags("ipu2_di0_pre_sel", base + 0x38, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_CLK_IPU2_DI1_PRE_SEL] = imx_clk_mux_flags("ipu2_di1_pre_sel", base + 0x38, 15, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_CLK_IPU1_DI0_SEL] = imx_clk_mux_flags("ipu1_di0_sel", base + 0x34, 0, 3, ipu1_di0_sels, ARRAY_SIZE(ipu1_di0_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_CLK_IPU1_DI1_SEL] = imx_clk_mux_flags("ipu1_di1_sel", base + 0x34, 9, 3, ipu1_di1_sels, ARRAY_SIZE(ipu1_di1_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_CLK_IPU2_DI0_SEL] = imx_clk_mux_flags("ipu2_di0_sel", base + 0x38, 0, 3, ipu2_di0_sels, ARRAY_SIZE(ipu2_di0_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_CLK_IPU2_DI1_SEL] = imx_clk_mux_flags("ipu2_di1_sel", base + 0x38, 9, 3, ipu2_di1_sels, ARRAY_SIZE(ipu2_di1_sels), CLK_SET_RATE_PARENT); + clk[IMX6QDL_CLK_HSI_TX_SEL] = imx_clk_mux("hsi_tx_sel", base + 0x30, 28, 1, hsi_tx_sels, ARRAY_SIZE(hsi_tx_sels)); + clk[IMX6QDL_CLK_PCIE_AXI_SEL] = imx_clk_mux("pcie_axi_sel", base + 0x18, 10, 1, pcie_axi_sels, ARRAY_SIZE(pcie_axi_sels)); + clk[IMX6QDL_CLK_SSI1_SEL] = imx_clk_fixup_mux("ssi1_sel", base + 0x1c, 10, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); + clk[IMX6QDL_CLK_SSI2_SEL] = imx_clk_fixup_mux("ssi2_sel", base + 0x1c, 12, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); + clk[IMX6QDL_CLK_SSI3_SEL] = imx_clk_fixup_mux("ssi3_sel", base + 0x1c, 14, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); + clk[IMX6QDL_CLK_USDHC1_SEL] = imx_clk_fixup_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + clk[IMX6QDL_CLK_USDHC2_SEL] = imx_clk_fixup_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + clk[IMX6QDL_CLK_USDHC3_SEL] = imx_clk_fixup_mux("usdhc3_sel", base + 0x1c, 18, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + clk[IMX6QDL_CLK_USDHC4_SEL] = imx_clk_fixup_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + clk[IMX6QDL_CLK_ENFC_SEL] = imx_clk_mux("enfc_sel", base + 0x2c, 16, 2, enfc_sels, ARRAY_SIZE(enfc_sels)); + clk[IMX6QDL_CLK_EIM_SEL] = imx_clk_fixup_mux("eim_sel", base + 0x1c, 27, 2, eim_sels, ARRAY_SIZE(eim_sels), imx_cscmr1_fixup); + clk[IMX6QDL_CLK_EIM_SLOW_SEL] = imx_clk_fixup_mux("eim_slow_sel", base + 0x1c, 29, 2, eim_slow_sels, ARRAY_SIZE(eim_slow_sels), imx_cscmr1_fixup); + clk[IMX6QDL_CLK_VDO_AXI_SEL] = imx_clk_mux("vdo_axi_sel", base + 0x18, 11, 1, vdo_axi_sels, ARRAY_SIZE(vdo_axi_sels)); + clk[IMX6QDL_CLK_VPU_AXI_SEL] = imx_clk_mux("vpu_axi_sel", base + 0x18, 14, 2, vpu_axi_sels, ARRAY_SIZE(vpu_axi_sels)); + clk[IMX6QDL_CLK_CKO1_SEL] = imx_clk_mux("cko1_sel", base + 0x60, 0, 4, cko1_sels, ARRAY_SIZE(cko1_sels)); + clk[IMX6QDL_CLK_CKO2_SEL] = imx_clk_mux("cko2_sel", base + 0x60, 16, 5, cko2_sels, ARRAY_SIZE(cko2_sels)); + clk[IMX6QDL_CLK_CKO] = imx_clk_mux("cko", base + 0x60, 8, 1, cko_sels, ARRAY_SIZE(cko_sels)); + + /* name reg shift width busy: reg, shift parent_names num_parents */ + clk[IMX6QDL_CLK_PERIPH] = imx_clk_busy_mux("periph", base + 0x14, 25, 1, base + 0x48, 5, periph_sels, ARRAY_SIZE(periph_sels)); + clk[IMX6QDL_CLK_PERIPH2] = imx_clk_busy_mux("periph2", base + 0x14, 26, 1, base + 0x48, 3, periph2_sels, ARRAY_SIZE(periph2_sels)); + + /* name parent_name reg shift width */ + clk[IMX6QDL_CLK_PERIPH_CLK2] = imx_clk_divider("periph_clk2", "periph_clk2_sel", base + 0x14, 27, 3); + clk[IMX6QDL_CLK_PERIPH2_CLK2] = imx_clk_divider("periph2_clk2", "periph2_clk2_sel", base + 0x14, 0, 3); + clk[IMX6QDL_CLK_IPG] = imx_clk_divider("ipg", "ahb", base + 0x14, 8, 2); + clk[IMX6QDL_CLK_IPG_PER] = imx_clk_fixup_divider("ipg_per", "ipg", base + 0x1c, 0, 6, imx_cscmr1_fixup); + clk[IMX6QDL_CLK_ESAI_PRED] = imx_clk_divider("esai_pred", "esai_sel", base + 0x28, 9, 3); + clk[IMX6QDL_CLK_ESAI_PODF] = imx_clk_divider("esai_podf", "esai_pred", base + 0x28, 25, 3); + clk[IMX6QDL_CLK_ASRC_PRED] = imx_clk_divider("asrc_pred", "asrc_sel", base + 0x30, 12, 3); + clk[IMX6QDL_CLK_ASRC_PODF] = imx_clk_divider("asrc_podf", "asrc_pred", base + 0x30, 9, 3); + clk[IMX6QDL_CLK_SPDIF_PRED] = imx_clk_divider("spdif_pred", "spdif_sel", base + 0x30, 25, 3); + clk[IMX6QDL_CLK_SPDIF_PODF] = imx_clk_divider("spdif_podf", "spdif_pred", base + 0x30, 22, 3); + clk[IMX6QDL_CLK_CAN_ROOT] = imx_clk_divider("can_root", "pll3_60m", base + 0x20, 2, 6); + clk[IMX6QDL_CLK_ECSPI_ROOT] = imx_clk_divider("ecspi_root", "pll3_60m", base + 0x38, 19, 6); + clk[IMX6QDL_CLK_GPU2D_CORE_PODF] = imx_clk_divider("gpu2d_core_podf", "gpu2d_core_sel", base + 0x18, 23, 3); + clk[IMX6QDL_CLK_GPU3D_CORE_PODF] = imx_clk_divider("gpu3d_core_podf", "gpu3d_core_sel", base + 0x18, 26, 3); + clk[IMX6QDL_CLK_GPU3D_SHADER] = imx_clk_divider("gpu3d_shader", "gpu3d_shader_sel", base + 0x18, 29, 3); + clk[IMX6QDL_CLK_IPU1_PODF] = imx_clk_divider("ipu1_podf", "ipu1_sel", base + 0x3c, 11, 3); + clk[IMX6QDL_CLK_IPU2_PODF] = imx_clk_divider("ipu2_podf", "ipu2_sel", base + 0x3c, 16, 3); + clk[IMX6QDL_CLK_LDB_DI0_DIV_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7); + clk[IMX6QDL_CLK_LDB_DI0_PODF] = imx_clk_divider_flags("ldb_di0_podf", "ldb_di0_div_3_5", base + 0x20, 10, 1, 0); + clk[IMX6QDL_CLK_LDB_DI1_DIV_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7); + clk[IMX6QDL_CLK_LDB_DI1_PODF] = imx_clk_divider_flags("ldb_di1_podf", "ldb_di1_div_3_5", base + 0x20, 11, 1, 0); + clk[IMX6QDL_CLK_IPU1_DI0_PRE] = imx_clk_divider("ipu1_di0_pre", "ipu1_di0_pre_sel", base + 0x34, 3, 3); + clk[IMX6QDL_CLK_IPU1_DI1_PRE] = imx_clk_divider("ipu1_di1_pre", "ipu1_di1_pre_sel", base + 0x34, 12, 3); + clk[IMX6QDL_CLK_IPU2_DI0_PRE] = imx_clk_divider("ipu2_di0_pre", "ipu2_di0_pre_sel", base + 0x38, 3, 3); + clk[IMX6QDL_CLK_IPU2_DI1_PRE] = imx_clk_divider("ipu2_di1_pre", "ipu2_di1_pre_sel", base + 0x38, 12, 3); + clk[IMX6QDL_CLK_HSI_TX_PODF] = imx_clk_divider("hsi_tx_podf", "hsi_tx_sel", base + 0x30, 29, 3); + clk[IMX6QDL_CLK_SSI1_PRED] = imx_clk_divider("ssi1_pred", "ssi1_sel", base + 0x28, 6, 3); + clk[IMX6QDL_CLK_SSI1_PODF] = imx_clk_divider("ssi1_podf", "ssi1_pred", base + 0x28, 0, 6); + clk[IMX6QDL_CLK_SSI2_PRED] = imx_clk_divider("ssi2_pred", "ssi2_sel", base + 0x2c, 6, 3); + clk[IMX6QDL_CLK_SSI2_PODF] = imx_clk_divider("ssi2_podf", "ssi2_pred", base + 0x2c, 0, 6); + clk[IMX6QDL_CLK_SSI3_PRED] = imx_clk_divider("ssi3_pred", "ssi3_sel", base + 0x28, 22, 3); + clk[IMX6QDL_CLK_SSI3_PODF] = imx_clk_divider("ssi3_podf", "ssi3_pred", base + 0x28, 16, 6); + clk[IMX6QDL_CLK_UART_SERIAL_PODF] = imx_clk_divider("uart_serial_podf", "pll3_80m", base + 0x24, 0, 6); + clk[IMX6QDL_CLK_USDHC1_PODF] = imx_clk_divider("usdhc1_podf", "usdhc1_sel", base + 0x24, 11, 3); + clk[IMX6QDL_CLK_USDHC2_PODF] = imx_clk_divider("usdhc2_podf", "usdhc2_sel", base + 0x24, 16, 3); + clk[IMX6QDL_CLK_USDHC3_PODF] = imx_clk_divider("usdhc3_podf", "usdhc3_sel", base + 0x24, 19, 3); + clk[IMX6QDL_CLK_USDHC4_PODF] = imx_clk_divider("usdhc4_podf", "usdhc4_sel", base + 0x24, 22, 3); + clk[IMX6QDL_CLK_ENFC_PRED] = imx_clk_divider("enfc_pred", "enfc_sel", base + 0x2c, 18, 3); + clk[IMX6QDL_CLK_ENFC_PODF] = imx_clk_divider("enfc_podf", "enfc_pred", base + 0x2c, 21, 6); + clk[IMX6QDL_CLK_EIM_PODF] = imx_clk_fixup_divider("eim_podf", "eim_sel", base + 0x1c, 20, 3, imx_cscmr1_fixup); + clk[IMX6QDL_CLK_EIM_SLOW_PODF] = imx_clk_fixup_divider("eim_slow_podf", "eim_slow_sel", base + 0x1c, 23, 3, imx_cscmr1_fixup); + clk[IMX6QDL_CLK_VPU_AXI_PODF] = imx_clk_divider("vpu_axi_podf", "vpu_axi_sel", base + 0x24, 25, 3); + clk[IMX6QDL_CLK_CKO1_PODF] = imx_clk_divider("cko1_podf", "cko1_sel", base + 0x60, 4, 3); + clk[IMX6QDL_CLK_CKO2_PODF] = imx_clk_divider("cko2_podf", "cko2_sel", base + 0x60, 21, 3); + + /* name parent_name reg shift width busy: reg, shift */ + clk[IMX6QDL_CLK_AXI] = imx_clk_busy_divider("axi", "axi_sel", base + 0x14, 16, 3, base + 0x48, 0); + clk[IMX6QDL_CLK_MMDC_CH0_AXI_PODF] = imx_clk_busy_divider("mmdc_ch0_axi_podf", "periph", base + 0x14, 19, 3, base + 0x48, 4); + clk[IMX6QDL_CLK_MMDC_CH1_AXI_PODF] = imx_clk_busy_divider("mmdc_ch1_axi_podf", "periph2", base + 0x14, 3, 3, base + 0x48, 2); + clk[IMX6QDL_CLK_ARM] = imx_clk_busy_divider("arm", "pll1_sw", base + 0x10, 0, 3, base + 0x48, 16); + clk[IMX6QDL_CLK_AHB] = imx_clk_busy_divider("ahb", "periph", base + 0x14, 10, 3, base + 0x48, 1); + + /* name parent_name reg shift */ + clk[IMX6QDL_CLK_APBH_DMA] = imx_clk_gate2("apbh_dma", "usdhc3", base + 0x68, 4); + clk[IMX6QDL_CLK_ASRC] = imx_clk_gate2_shared("asrc", "asrc_podf", base + 0x68, 6, &share_count_asrc); + clk[IMX6QDL_CLK_ASRC_IPG] = imx_clk_gate2_shared("asrc_ipg", "ahb", base + 0x68, 6, &share_count_asrc); + clk[IMX6QDL_CLK_ASRC_MEM] = imx_clk_gate2_shared("asrc_mem", "ahb", base + 0x68, 6, &share_count_asrc); + clk[IMX6QDL_CLK_CAN1_IPG] = imx_clk_gate2("can1_ipg", "ipg", base + 0x68, 14); + clk[IMX6QDL_CLK_CAN1_SERIAL] = imx_clk_gate2("can1_serial", "can_root", base + 0x68, 16); + clk[IMX6QDL_CLK_CAN2_IPG] = imx_clk_gate2("can2_ipg", "ipg", base + 0x68, 18); + clk[IMX6QDL_CLK_CAN2_SERIAL] = imx_clk_gate2("can2_serial", "can_root", base + 0x68, 20); + clk[IMX6QDL_CLK_ECSPI1] = imx_clk_gate2("ecspi1", "ecspi_root", base + 0x6c, 0); + clk[IMX6QDL_CLK_ECSPI2] = imx_clk_gate2("ecspi2", "ecspi_root", base + 0x6c, 2); + clk[IMX6QDL_CLK_ECSPI3] = imx_clk_gate2("ecspi3", "ecspi_root", base + 0x6c, 4); + clk[IMX6QDL_CLK_ECSPI4] = imx_clk_gate2("ecspi4", "ecspi_root", base + 0x6c, 6); + if (clk_on_imx6dl()) + clk[IMX6DL_CLK_I2C4] = imx_clk_gate2("i2c4", "ipg_per", base + 0x6c, 8); + else + clk[IMX6Q_CLK_ECSPI5] = imx_clk_gate2("ecspi5", "ecspi_root", base + 0x6c, 8); + clk[IMX6QDL_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x6c, 10); + clk[IMX6QDL_CLK_ESAI_EXTAL] = imx_clk_gate2_shared("esai_extal", "esai_podf", base + 0x6c, 16, &share_count_esai); + clk[IMX6QDL_CLK_ESAI_IPG] = imx_clk_gate2_shared("esai_ipg", "ahb", base + 0x6c, 16, &share_count_esai); + clk[IMX6QDL_CLK_ESAI_MEM] = imx_clk_gate2_shared("esai_mem", "ahb", base + 0x6c, 16, &share_count_esai); + clk[IMX6QDL_CLK_GPT_IPG] = imx_clk_gate2("gpt_ipg", "ipg", base + 0x6c, 20); + clk[IMX6QDL_CLK_GPT_IPG_PER] = imx_clk_gate2("gpt_ipg_per", "ipg_per", base + 0x6c, 22); + if (clk_on_imx6dl()) + /* + * The multiplexer and divider of imx6q clock gpu3d_shader get + * redefined/reused as gpu2d_core_sel and gpu2d_core_podf on imx6dl. + */ + clk[IMX6QDL_CLK_GPU2D_CORE] = imx_clk_gate2("gpu2d_core", "gpu3d_shader", base + 0x6c, 24); + else + clk[IMX6QDL_CLK_GPU2D_CORE] = imx_clk_gate2("gpu2d_core", "gpu2d_core_podf", base + 0x6c, 24); + clk[IMX6QDL_CLK_GPU3D_CORE] = imx_clk_gate2("gpu3d_core", "gpu3d_core_podf", base + 0x6c, 26); + clk[IMX6QDL_CLK_HDMI_IAHB] = imx_clk_gate2("hdmi_iahb", "ahb", base + 0x70, 0); + clk[IMX6QDL_CLK_HDMI_ISFR] = imx_clk_gate2("hdmi_isfr", "video_27m", base + 0x70, 4); + clk[IMX6QDL_CLK_I2C1] = imx_clk_gate2("i2c1", "ipg_per", base + 0x70, 6); + clk[IMX6QDL_CLK_I2C2] = imx_clk_gate2("i2c2", "ipg_per", base + 0x70, 8); + clk[IMX6QDL_CLK_I2C3] = imx_clk_gate2("i2c3", "ipg_per", base + 0x70, 10); + clk[IMX6QDL_CLK_IIM] = imx_clk_gate2("iim", "ipg", base + 0x70, 12); + clk[IMX6QDL_CLK_ENFC] = imx_clk_gate2("enfc", "enfc_podf", base + 0x70, 14); + clk[IMX6QDL_CLK_VDOA] = imx_clk_gate2("vdoa", "vdo_axi", base + 0x70, 26); + clk[IMX6QDL_CLK_IPU1] = imx_clk_gate2("ipu1", "ipu1_podf", base + 0x74, 0); + clk[IMX6QDL_CLK_IPU1_DI0] = imx_clk_gate2("ipu1_di0", "ipu1_di0_sel", base + 0x74, 2); + clk[IMX6QDL_CLK_IPU1_DI1] = imx_clk_gate2("ipu1_di1", "ipu1_di1_sel", base + 0x74, 4); + clk[IMX6QDL_CLK_IPU2] = imx_clk_gate2("ipu2", "ipu2_podf", base + 0x74, 6); + clk[IMX6QDL_CLK_IPU2_DI0] = imx_clk_gate2("ipu2_di0", "ipu2_di0_sel", base + 0x74, 8); + clk[IMX6QDL_CLK_LDB_DI0] = imx_clk_gate2("ldb_di0", "ldb_di0_podf", base + 0x74, 12); + clk[IMX6QDL_CLK_LDB_DI1] = imx_clk_gate2("ldb_di1", "ldb_di1_podf", base + 0x74, 14); + clk[IMX6QDL_CLK_IPU2_DI1] = imx_clk_gate2("ipu2_di1", "ipu2_di1_sel", base + 0x74, 10); + clk[IMX6QDL_CLK_HSI_TX] = imx_clk_gate2_shared("hsi_tx", "hsi_tx_podf", base + 0x74, 16, &share_count_mipi_core_cfg); + clk[IMX6QDL_CLK_MIPI_CORE_CFG] = imx_clk_gate2_shared("mipi_core_cfg", "video_27m", base + 0x74, 16, &share_count_mipi_core_cfg); + clk[IMX6QDL_CLK_MIPI_IPG] = imx_clk_gate2_shared("mipi_ipg", "ipg", base + 0x74, 16, &share_count_mipi_core_cfg); + if (clk_on_imx6dl()) + /* + * The multiplexer and divider of the imx6q clock gpu2d get + * redefined/reused as mlb_sys_sel and mlb_sys_clk_podf on imx6dl. + */ + clk[IMX6QDL_CLK_MLB] = imx_clk_gate2("mlb", "gpu2d_core_podf", base + 0x74, 18); + else + clk[IMX6QDL_CLK_MLB] = imx_clk_gate2("mlb", "axi", base + 0x74, 18); + clk[IMX6QDL_CLK_MMDC_CH0_AXI] = imx_clk_gate2("mmdc_ch0_axi", "mmdc_ch0_axi_podf", base + 0x74, 20); + clk[IMX6QDL_CLK_MMDC_CH1_AXI] = imx_clk_gate2("mmdc_ch1_axi", "mmdc_ch1_axi_podf", base + 0x74, 22); + clk[IMX6QDL_CLK_OCRAM] = imx_clk_gate2("ocram", "ahb", base + 0x74, 28); + clk[IMX6QDL_CLK_OPENVG_AXI] = imx_clk_gate2("openvg_axi", "axi", base + 0x74, 30); + clk[IMX6QDL_CLK_PCIE_AXI] = imx_clk_gate2("pcie_axi", "pcie_axi_sel", base + 0x78, 0); + clk[IMX6QDL_CLK_PER1_BCH] = imx_clk_gate2("per1_bch", "usdhc3", base + 0x78, 12); + clk[IMX6QDL_CLK_PWM1] = imx_clk_gate2("pwm1", "ipg_per", base + 0x78, 16); + clk[IMX6QDL_CLK_PWM2] = imx_clk_gate2("pwm2", "ipg_per", base + 0x78, 18); + clk[IMX6QDL_CLK_PWM3] = imx_clk_gate2("pwm3", "ipg_per", base + 0x78, 20); + clk[IMX6QDL_CLK_PWM4] = imx_clk_gate2("pwm4", "ipg_per", base + 0x78, 22); + clk[IMX6QDL_CLK_GPMI_BCH_APB] = imx_clk_gate2("gpmi_bch_apb", "usdhc3", base + 0x78, 24); + clk[IMX6QDL_CLK_GPMI_BCH] = imx_clk_gate2("gpmi_bch", "usdhc4", base + 0x78, 26); + clk[IMX6QDL_CLK_GPMI_IO] = imx_clk_gate2("gpmi_io", "enfc", base + 0x78, 28); + clk[IMX6QDL_CLK_GPMI_APB] = imx_clk_gate2("gpmi_apb", "usdhc3", base + 0x78, 30); + clk[IMX6QDL_CLK_ROM] = imx_clk_gate2("rom", "ahb", base + 0x7c, 0); + clk[IMX6QDL_CLK_SATA] = imx_clk_gate2("sata", "ahb", base + 0x7c, 4); + clk[IMX6QDL_CLK_SDMA] = imx_clk_gate2("sdma", "ahb", base + 0x7c, 6); + clk[IMX6QDL_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12); + clk[IMX6QDL_CLK_SPDIF] = imx_clk_gate2("spdif", "spdif_podf", base + 0x7c, 14); + clk[IMX6QDL_CLK_SSI1_IPG] = imx_clk_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1); + clk[IMX6QDL_CLK_SSI2_IPG] = imx_clk_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2); + clk[IMX6QDL_CLK_SSI3_IPG] = imx_clk_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3); + clk[IMX6QDL_CLK_SSI1] = imx_clk_gate2_shared("ssi1", "ssi1_podf", base + 0x7c, 18, &share_count_ssi1); + clk[IMX6QDL_CLK_SSI2] = imx_clk_gate2_shared("ssi2", "ssi2_podf", base + 0x7c, 20, &share_count_ssi2); + clk[IMX6QDL_CLK_SSI3] = imx_clk_gate2_shared("ssi3", "ssi3_podf", base + 0x7c, 22, &share_count_ssi3); + clk[IMX6QDL_CLK_UART_IPG] = imx_clk_gate2("uart_ipg", "ipg", base + 0x7c, 24); + clk[IMX6QDL_CLK_UART_SERIAL] = imx_clk_gate2("uart_serial", "uart_serial_podf", base + 0x7c, 26); + clk[IMX6QDL_CLK_USBOH3] = imx_clk_gate2("usboh3", "ipg", base + 0x80, 0); + clk[IMX6QDL_CLK_USDHC1] = imx_clk_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2); + clk[IMX6QDL_CLK_USDHC2] = imx_clk_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4); + clk[IMX6QDL_CLK_USDHC3] = imx_clk_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6); + clk[IMX6QDL_CLK_USDHC4] = imx_clk_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8); + clk[IMX6QDL_CLK_EIM_SLOW] = imx_clk_gate2("eim_slow", "eim_slow_podf", base + 0x80, 10); + clk[IMX6QDL_CLK_VDO_AXI] = imx_clk_gate2("vdo_axi", "vdo_axi_sel", base + 0x80, 12); + clk[IMX6QDL_CLK_VPU_AXI] = imx_clk_gate2("vpu_axi", "vpu_axi_podf", base + 0x80, 14); + clk[IMX6QDL_CLK_CKO1] = imx_clk_gate("cko1", "cko1_podf", base + 0x60, 7); + clk[IMX6QDL_CLK_CKO2] = imx_clk_gate("cko2", "cko2_podf", base + 0x60, 24); + + /* + * The gpt_3m clock is not available on i.MX6Q TO1.0. Let's point it + * to clock gpt_ipg_per to ease the gpt driver code. + */ + if (clk_on_imx6q() && imx_get_soc_revision() == IMX_CHIP_REVISION_1_0) + clk[IMX6QDL_CLK_GPT_3M] = clk[IMX6QDL_CLK_GPT_IPG_PER]; + + imx_check_clocks(clk, ARRAY_SIZE(clk)); + + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + clk_register_clkdev(clk[IMX6QDL_CLK_ENET_REF], "enet_ref", NULL); + + if ((imx_get_soc_revision() != IMX_CHIP_REVISION_1_0) || + clk_on_imx6dl()) { + clk_set_parent(clk[IMX6QDL_CLK_LDB_DI0_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]); + clk_set_parent(clk[IMX6QDL_CLK_LDB_DI1_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]); + } + + clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]); + clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI1_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]); + clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]); + clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI1_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]); + clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI0_SEL], clk[IMX6QDL_CLK_IPU1_DI0_PRE]); + clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI1_SEL], clk[IMX6QDL_CLK_IPU1_DI1_PRE]); + clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI0_SEL], clk[IMX6QDL_CLK_IPU2_DI0_PRE]); + clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI1_SEL], clk[IMX6QDL_CLK_IPU2_DI1_PRE]); + + /* + * The gpmi needs 100MHz frequency in the EDO/Sync mode, + * We can not get the 100MHz from the pll2_pfd0_352m. + * So choose pll2_pfd2_396m as enfc_sel's parent. + */ + clk_set_parent(clk[IMX6QDL_CLK_ENFC_SEL], clk[IMX6QDL_CLK_PLL2_PFD2_396M]); + + for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) + clk_prepare_enable(clk[clks_init_on[i]]); + + if (IS_ENABLED(CONFIG_USB_MXS_PHY)) { + clk_prepare_enable(clk[IMX6QDL_CLK_USBPHY1_GATE]); + clk_prepare_enable(clk[IMX6QDL_CLK_USBPHY2_GATE]); + } + + /* + * Let's initially set up CLKO with OSC24M, since this configuration + * is widely used by imx6q board designs to clock audio codec. + */ + ret = clk_set_parent(clk[IMX6QDL_CLK_CKO2_SEL], clk[IMX6QDL_CLK_OSC]); + if (!ret) + ret = clk_set_parent(clk[IMX6QDL_CLK_CKO], clk[IMX6QDL_CLK_CKO2]); + if (ret) + pr_warn("failed to set up CLKO: %d\n", ret); + + /* Audio-related clocks configuration */ + clk_set_parent(clk[IMX6QDL_CLK_SPDIF_SEL], clk[IMX6QDL_CLK_PLL3_PFD3_454M]); + + /* All existing boards with PCIe use LVDS1 */ + if (IS_ENABLED(CONFIG_PCI_IMX6)) + clk_set_parent(clk[IMX6QDL_CLK_LVDS1_SEL], clk[IMX6QDL_CLK_SATA_REF_100M]); +} +CLK_OF_DECLARE(imx6q, "fsl,imx6q-ccm", imx6q_clocks_init); diff --git a/drivers/clk/imx/clk-imx6sl.c b/drivers/clk/imx/clk-imx6sl.c new file mode 100644 index 000000000000..a0d4cf26cfa9 --- /dev/null +++ b/drivers/clk/imx/clk-imx6sl.c @@ -0,0 +1,443 @@ +/* + * Copyright 2013-2014 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <dt-bindings/clock/imx6sl-clock.h> + +#include "clk.h" + +#define CCSR 0xc +#define BM_CCSR_PLL1_SW_CLK_SEL (1 << 2) +#define CACRR 0x10 +#define CDHIPR 0x48 +#define BM_CDHIPR_ARM_PODF_BUSY (1 << 16) +#define ARM_WAIT_DIV_396M 2 +#define ARM_WAIT_DIV_792M 4 +#define ARM_WAIT_DIV_996M 6 + +#define PLL_ARM 0x0 +#define BM_PLL_ARM_DIV_SELECT (0x7f << 0) +#define BM_PLL_ARM_POWERDOWN (1 << 12) +#define BM_PLL_ARM_ENABLE (1 << 13) +#define BM_PLL_ARM_LOCK (1 << 31) +#define PLL_ARM_DIV_792M 66 + +static const char *step_sels[] = { "osc", "pll2_pfd2", }; +static const char *pll1_sw_sels[] = { "pll1_sys", "step", }; +static const char *ocram_alt_sels[] = { "pll2_pfd2", "pll3_pfd1", }; +static const char *ocram_sels[] = { "periph", "ocram_alt_sels", }; +static const char *pre_periph_sels[] = { "pll2_bus", "pll2_pfd2", "pll2_pfd0", "pll2_198m", }; +static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", "osc", "dummy", }; +static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "pll2_bus", }; +static const char *periph_sels[] = { "pre_periph_sel", "periph_clk2_podf", }; +static const char *periph2_sels[] = { "pre_periph2_sel", "periph2_clk2_podf", }; +static const char *csi_sels[] = { "osc", "pll2_pfd2", "pll3_120m", "pll3_pfd1", }; +static const char *lcdif_axi_sels[] = { "pll2_bus", "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", }; +static const char *usdhc_sels[] = { "pll2_pfd2", "pll2_pfd0", }; +static const char *ssi_sels[] = { "pll3_pfd2", "pll3_pfd3", "pll4_audio_div", "dummy", }; +static const char *perclk_sels[] = { "ipg", "osc", }; +static const char *pxp_axi_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd3", }; +static const char *epdc_axi_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd2", }; +static const char *gpu2d_ovg_sels[] = { "pll3_pfd1", "pll3_usb_otg", "pll2_bus", "pll2_pfd2", }; +static const char *gpu2d_sels[] = { "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", "pll2_bus", }; +static const char *lcdif_pix_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll3_pfd0", "pll3_pfd1", }; +static const char *epdc_pix_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd1", "pll3_pfd1", }; +static const char *audio_sels[] = { "pll4_audio_div", "pll3_pfd2", "pll3_pfd3", "pll3_usb_otg", }; +static const char *ecspi_sels[] = { "pll3_60m", "osc", }; +static const char *uart_sels[] = { "pll3_80m", "osc", }; +static const char *lvds_sels[] = { + "pll1_sys", "pll2_bus", "pll2_pfd0", "pll2_pfd1", "pll2_pfd2", "dummy", "pll4_audio", "pll5_video", + "dummy", "enet_ref", "dummy", "dummy", "pll3_usb_otg", "pll7_usb_host", "pll3_pfd0", "pll3_pfd1", + "pll3_pfd2", "pll3_pfd3", "osc", "dummy", "dummy", "dummy", "dummy", "dummy", + "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", +}; +static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", }; +static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", }; +static const char *pll2_bypass_sels[] = { "pll2", "pll2_bypass_src", }; +static const char *pll3_bypass_sels[] = { "pll3", "pll3_bypass_src", }; +static const char *pll4_bypass_sels[] = { "pll4", "pll4_bypass_src", }; +static const char *pll5_bypass_sels[] = { "pll5", "pll5_bypass_src", }; +static const char *pll6_bypass_sels[] = { "pll6", "pll6_bypass_src", }; +static const char *pll7_bypass_sels[] = { "pll7", "pll7_bypass_src", }; + +static struct clk_div_table clk_enet_ref_table[] = { + { .val = 0, .div = 20, }, + { .val = 1, .div = 10, }, + { .val = 2, .div = 5, }, + { .val = 3, .div = 4, }, + { } +}; + +static struct clk_div_table post_div_table[] = { + { .val = 2, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 0, .div = 4, }, + { } +}; + +static struct clk_div_table video_div_table[] = { + { .val = 0, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 2, .div = 1, }, + { .val = 3, .div = 4, }, + { } +}; + +static unsigned int share_count_ssi1; +static unsigned int share_count_ssi2; +static unsigned int share_count_ssi3; + +static struct clk *clks[IMX6SL_CLK_END]; +static struct clk_onecell_data clk_data; +static void __iomem *ccm_base; +static void __iomem *anatop_base; + +static const u32 clks_init_on[] __initconst = { + IMX6SL_CLK_IPG, IMX6SL_CLK_ARM, IMX6SL_CLK_MMDC_ROOT, +}; + +/* + * ERR005311 CCM: After exit from WAIT mode, unwanted interrupt(s) taken + * during WAIT mode entry process could cause cache memory + * corruption. + * + * Software workaround: + * To prevent this issue from occurring, software should ensure that the + * ARM to IPG clock ratio is less than 12:5 (that is < 2.4x), before + * entering WAIT mode. + * + * This function will set the ARM clk to max value within the 12:5 limit. + * As IPG clock is fixed at 66MHz(so ARM freq must not exceed 158.4MHz), + * ARM freq are one of below setpoints: 396MHz, 792MHz and 996MHz, since + * the clk APIs can NOT be called in idle thread(may cause kernel schedule + * as there is sleep function in PLL wait function), so here we just slow + * down ARM to below freq according to previous freq: + * + * run mode wait mode + * 396MHz -> 132MHz; + * 792MHz -> 158.4MHz; + * 996MHz -> 142.3MHz; + */ +static int imx6sl_get_arm_divider_for_wait(void) +{ + if (readl_relaxed(ccm_base + CCSR) & BM_CCSR_PLL1_SW_CLK_SEL) { + return ARM_WAIT_DIV_396M; + } else { + if ((readl_relaxed(anatop_base + PLL_ARM) & + BM_PLL_ARM_DIV_SELECT) == PLL_ARM_DIV_792M) + return ARM_WAIT_DIV_792M; + else + return ARM_WAIT_DIV_996M; + } +} + +static void imx6sl_enable_pll_arm(bool enable) +{ + static u32 saved_pll_arm; + u32 val; + + if (enable) { + saved_pll_arm = val = readl_relaxed(anatop_base + PLL_ARM); + val |= BM_PLL_ARM_ENABLE; + val &= ~BM_PLL_ARM_POWERDOWN; + writel_relaxed(val, anatop_base + PLL_ARM); + while (!(__raw_readl(anatop_base + PLL_ARM) & BM_PLL_ARM_LOCK)) + ; + } else { + writel_relaxed(saved_pll_arm, anatop_base + PLL_ARM); + } +} + +void imx6sl_set_wait_clk(bool enter) +{ + static unsigned long saved_arm_div; + int arm_div_for_wait = imx6sl_get_arm_divider_for_wait(); + + /* + * According to hardware design, arm podf change need + * PLL1 clock enabled. + */ + if (arm_div_for_wait == ARM_WAIT_DIV_396M) + imx6sl_enable_pll_arm(true); + + if (enter) { + saved_arm_div = readl_relaxed(ccm_base + CACRR); + writel_relaxed(arm_div_for_wait, ccm_base + CACRR); + } else { + writel_relaxed(saved_arm_div, ccm_base + CACRR); + } + while (__raw_readl(ccm_base + CDHIPR) & BM_CDHIPR_ARM_PODF_BUSY) + ; + + if (arm_div_for_wait == ARM_WAIT_DIV_396M) + imx6sl_enable_pll_arm(false); +} + +static void __init imx6sl_clocks_init(struct device_node *ccm_node) +{ + struct device_node *np; + void __iomem *base; + int i; + int ret; + + clks[IMX6SL_CLK_DUMMY] = imx_clk_fixed("dummy", 0); + clks[IMX6SL_CLK_CKIL] = imx_obtain_fixed_clock("ckil", 0); + clks[IMX6SL_CLK_OSC] = imx_obtain_fixed_clock("osc", 0); + /* Clock source from external clock via CLK1 PAD */ + clks[IMX6SL_CLK_ANACLK1] = imx_obtain_fixed_clock("anaclk1", 0); + + np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-anatop"); + base = of_iomap(np, 0); + WARN_ON(!base); + anatop_base = base; + + clks[IMX6SL_PLL1_BYPASS_SRC] = imx_clk_mux("pll1_bypass_src", base + 0x00, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL2_BYPASS_SRC] = imx_clk_mux("pll2_bypass_src", base + 0x30, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL3_BYPASS_SRC] = imx_clk_mux("pll3_bypass_src", base + 0x10, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL4_BYPASS_SRC] = imx_clk_mux("pll4_bypass_src", base + 0x70, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL5_BYPASS_SRC] = imx_clk_mux("pll5_bypass_src", base + 0xa0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL6_BYPASS_SRC] = imx_clk_mux("pll6_bypass_src", base + 0xe0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SL_PLL7_BYPASS_SRC] = imx_clk_mux("pll7_bypass_src", base + 0x20, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + + /* type name parent_name base div_mask */ + clks[IMX6SL_CLK_PLL1] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1", "pll1_bypass_src", base + 0x00, 0x7f); + clks[IMX6SL_CLK_PLL2] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2", "pll2_bypass_src", base + 0x30, 0x1); + clks[IMX6SL_CLK_PLL3] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3", "pll3_bypass_src", base + 0x10, 0x3); + clks[IMX6SL_CLK_PLL4] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4", "pll4_bypass_src", base + 0x70, 0x7f); + clks[IMX6SL_CLK_PLL5] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5", "pll5_bypass_src", base + 0xa0, 0x7f); + clks[IMX6SL_CLK_PLL6] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6", "pll6_bypass_src", base + 0xe0, 0x3); + clks[IMX6SL_CLK_PLL7] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7", "pll7_bypass_src", base + 0x20, 0x3); + + clks[IMX6SL_PLL1_BYPASS] = imx_clk_mux_flags("pll1_bypass", base + 0x00, 16, 1, pll1_bypass_sels, ARRAY_SIZE(pll1_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SL_PLL2_BYPASS] = imx_clk_mux_flags("pll2_bypass", base + 0x30, 16, 1, pll2_bypass_sels, ARRAY_SIZE(pll2_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SL_PLL3_BYPASS] = imx_clk_mux_flags("pll3_bypass", base + 0x10, 16, 1, pll3_bypass_sels, ARRAY_SIZE(pll3_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SL_PLL4_BYPASS] = imx_clk_mux_flags("pll4_bypass", base + 0x70, 16, 1, pll4_bypass_sels, ARRAY_SIZE(pll4_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SL_PLL5_BYPASS] = imx_clk_mux_flags("pll5_bypass", base + 0xa0, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SL_PLL6_BYPASS] = imx_clk_mux_flags("pll6_bypass", base + 0xe0, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SL_PLL7_BYPASS] = imx_clk_mux_flags("pll7_bypass", base + 0x20, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels), CLK_SET_RATE_PARENT); + + /* Do not bypass PLLs initially */ + clk_set_parent(clks[IMX6SL_PLL1_BYPASS], clks[IMX6SL_CLK_PLL1]); + clk_set_parent(clks[IMX6SL_PLL2_BYPASS], clks[IMX6SL_CLK_PLL2]); + clk_set_parent(clks[IMX6SL_PLL3_BYPASS], clks[IMX6SL_CLK_PLL3]); + clk_set_parent(clks[IMX6SL_PLL4_BYPASS], clks[IMX6SL_CLK_PLL4]); + clk_set_parent(clks[IMX6SL_PLL5_BYPASS], clks[IMX6SL_CLK_PLL5]); + clk_set_parent(clks[IMX6SL_PLL6_BYPASS], clks[IMX6SL_CLK_PLL6]); + clk_set_parent(clks[IMX6SL_PLL7_BYPASS], clks[IMX6SL_CLK_PLL7]); + + clks[IMX6SL_CLK_PLL1_SYS] = imx_clk_gate("pll1_sys", "pll1_bypass", base + 0x00, 13); + clks[IMX6SL_CLK_PLL2_BUS] = imx_clk_gate("pll2_bus", "pll2_bypass", base + 0x30, 13); + clks[IMX6SL_CLK_PLL3_USB_OTG] = imx_clk_gate("pll3_usb_otg", "pll3_bypass", base + 0x10, 13); + clks[IMX6SL_CLK_PLL4_AUDIO] = imx_clk_gate("pll4_audio", "pll4_bypass", base + 0x70, 13); + clks[IMX6SL_CLK_PLL5_VIDEO] = imx_clk_gate("pll5_video", "pll5_bypass", base + 0xa0, 13); + clks[IMX6SL_CLK_PLL6_ENET] = imx_clk_gate("pll6_enet", "pll6_bypass", base + 0xe0, 13); + clks[IMX6SL_CLK_PLL7_USB_HOST] = imx_clk_gate("pll7_usb_host", "pll7_bypass", base + 0x20, 13); + + clks[IMX6SL_CLK_LVDS1_SEL] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); + clks[IMX6SL_CLK_LVDS1_OUT] = imx_clk_gate_exclusive("lvds1_out", "lvds1_sel", base + 0x160, 10, BIT(12)); + clks[IMX6SL_CLK_LVDS1_IN] = imx_clk_gate_exclusive("lvds1_in", "anaclk1", base + 0x160, 12, BIT(10)); + + /* + * usbphy1 and usbphy2 are implemented as dummy gates using reserve + * bit 20. They are used by phy driver to keep the refcount of + * parent PLL correct. usbphy1_gate and usbphy2_gate only needs to be + * turned on during boot, and software will not need to control it + * anymore after that. + */ + clks[IMX6SL_CLK_USBPHY1] = imx_clk_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20); + clks[IMX6SL_CLK_USBPHY2] = imx_clk_gate("usbphy2", "pll7_usb_host", base + 0x20, 20); + clks[IMX6SL_CLK_USBPHY1_GATE] = imx_clk_gate("usbphy1_gate", "dummy", base + 0x10, 6); + clks[IMX6SL_CLK_USBPHY2_GATE] = imx_clk_gate("usbphy2_gate", "dummy", base + 0x20, 6); + + /* dev name parent_name flags reg shift width div: flags, div_table lock */ + clks[IMX6SL_CLK_PLL4_POST_DIV] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock); + clks[IMX6SL_CLK_PLL4_AUDIO_DIV] = clk_register_divider(NULL, "pll4_audio_div", "pll4_post_div", CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock); + clks[IMX6SL_CLK_PLL5_POST_DIV] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock); + clks[IMX6SL_CLK_PLL5_VIDEO_DIV] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", CLK_SET_RATE_PARENT, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock); + clks[IMX6SL_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0, base + 0xe0, 0, 2, 0, clk_enet_ref_table, &imx_ccm_lock); + + /* name parent_name reg idx */ + clks[IMX6SL_CLK_PLL2_PFD0] = imx_clk_pfd("pll2_pfd0", "pll2_bus", base + 0x100, 0); + clks[IMX6SL_CLK_PLL2_PFD1] = imx_clk_pfd("pll2_pfd1", "pll2_bus", base + 0x100, 1); + clks[IMX6SL_CLK_PLL2_PFD2] = imx_clk_pfd("pll2_pfd2", "pll2_bus", base + 0x100, 2); + clks[IMX6SL_CLK_PLL3_PFD0] = imx_clk_pfd("pll3_pfd0", "pll3_usb_otg", base + 0xf0, 0); + clks[IMX6SL_CLK_PLL3_PFD1] = imx_clk_pfd("pll3_pfd1", "pll3_usb_otg", base + 0xf0, 1); + clks[IMX6SL_CLK_PLL3_PFD2] = imx_clk_pfd("pll3_pfd2", "pll3_usb_otg", base + 0xf0, 2); + clks[IMX6SL_CLK_PLL3_PFD3] = imx_clk_pfd("pll3_pfd3", "pll3_usb_otg", base + 0xf0, 3); + + /* name parent_name mult div */ + clks[IMX6SL_CLK_PLL2_198M] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2", 1, 2); + clks[IMX6SL_CLK_PLL3_120M] = imx_clk_fixed_factor("pll3_120m", "pll3_usb_otg", 1, 4); + clks[IMX6SL_CLK_PLL3_80M] = imx_clk_fixed_factor("pll3_80m", "pll3_usb_otg", 1, 6); + clks[IMX6SL_CLK_PLL3_60M] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8); + + np = ccm_node; + base = of_iomap(np, 0); + WARN_ON(!base); + ccm_base = base; + + /* name reg shift width parent_names num_parents */ + clks[IMX6SL_CLK_STEP] = imx_clk_mux("step", base + 0xc, 8, 1, step_sels, ARRAY_SIZE(step_sels)); + clks[IMX6SL_CLK_PLL1_SW] = imx_clk_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels)); + clks[IMX6SL_CLK_OCRAM_ALT_SEL] = imx_clk_mux("ocram_alt_sel", base + 0x14, 7, 1, ocram_alt_sels, ARRAY_SIZE(ocram_alt_sels)); + clks[IMX6SL_CLK_OCRAM_SEL] = imx_clk_mux("ocram_sel", base + 0x14, 6, 1, ocram_sels, ARRAY_SIZE(ocram_sels)); + clks[IMX6SL_CLK_PRE_PERIPH2_SEL] = imx_clk_mux("pre_periph2_sel", base + 0x18, 21, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels)); + clks[IMX6SL_CLK_PRE_PERIPH_SEL] = imx_clk_mux("pre_periph_sel", base + 0x18, 18, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels)); + clks[IMX6SL_CLK_PERIPH2_CLK2_SEL] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels)); + clks[IMX6SL_CLK_PERIPH_CLK2_SEL] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels)); + clks[IMX6SL_CLK_CSI_SEL] = imx_clk_mux("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels)); + clks[IMX6SL_CLK_LCDIF_AXI_SEL] = imx_clk_mux("lcdif_axi_sel", base + 0x3c, 14, 2, lcdif_axi_sels, ARRAY_SIZE(lcdif_axi_sels)); + clks[IMX6SL_CLK_USDHC1_SEL] = imx_clk_fixup_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + clks[IMX6SL_CLK_USDHC2_SEL] = imx_clk_fixup_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + clks[IMX6SL_CLK_USDHC3_SEL] = imx_clk_fixup_mux("usdhc3_sel", base + 0x1c, 18, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + clks[IMX6SL_CLK_USDHC4_SEL] = imx_clk_fixup_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); + clks[IMX6SL_CLK_SSI1_SEL] = imx_clk_fixup_mux("ssi1_sel", base + 0x1c, 10, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); + clks[IMX6SL_CLK_SSI2_SEL] = imx_clk_fixup_mux("ssi2_sel", base + 0x1c, 12, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); + clks[IMX6SL_CLK_SSI3_SEL] = imx_clk_fixup_mux("ssi3_sel", base + 0x1c, 14, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); + clks[IMX6SL_CLK_PERCLK_SEL] = imx_clk_fixup_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels), imx_cscmr1_fixup); + clks[IMX6SL_CLK_PXP_AXI_SEL] = imx_clk_mux("pxp_axi_sel", base + 0x34, 6, 3, pxp_axi_sels, ARRAY_SIZE(pxp_axi_sels)); + clks[IMX6SL_CLK_EPDC_AXI_SEL] = imx_clk_mux("epdc_axi_sel", base + 0x34, 15, 3, epdc_axi_sels, ARRAY_SIZE(epdc_axi_sels)); + clks[IMX6SL_CLK_GPU2D_OVG_SEL] = imx_clk_mux("gpu2d_ovg_sel", base + 0x18, 4, 2, gpu2d_ovg_sels, ARRAY_SIZE(gpu2d_ovg_sels)); + clks[IMX6SL_CLK_GPU2D_SEL] = imx_clk_mux("gpu2d_sel", base + 0x18, 8, 2, gpu2d_sels, ARRAY_SIZE(gpu2d_sels)); + clks[IMX6SL_CLK_LCDIF_PIX_SEL] = imx_clk_mux("lcdif_pix_sel", base + 0x38, 6, 3, lcdif_pix_sels, ARRAY_SIZE(lcdif_pix_sels)); + clks[IMX6SL_CLK_EPDC_PIX_SEL] = imx_clk_mux("epdc_pix_sel", base + 0x38, 15, 3, epdc_pix_sels, ARRAY_SIZE(epdc_pix_sels)); + clks[IMX6SL_CLK_SPDIF0_SEL] = imx_clk_mux("spdif0_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels)); + clks[IMX6SL_CLK_SPDIF1_SEL] = imx_clk_mux("spdif1_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels)); + clks[IMX6SL_CLK_EXTERN_AUDIO_SEL] = imx_clk_mux("extern_audio_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels)); + clks[IMX6SL_CLK_ECSPI_SEL] = imx_clk_mux("ecspi_sel", base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels)); + clks[IMX6SL_CLK_UART_SEL] = imx_clk_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels)); + + /* name reg shift width busy: reg, shift parent_names num_parents */ + clks[IMX6SL_CLK_PERIPH] = imx_clk_busy_mux("periph", base + 0x14, 25, 1, base + 0x48, 5, periph_sels, ARRAY_SIZE(periph_sels)); + clks[IMX6SL_CLK_PERIPH2] = imx_clk_busy_mux("periph2", base + 0x14, 26, 1, base + 0x48, 3, periph2_sels, ARRAY_SIZE(periph2_sels)); + + /* name parent_name reg shift width */ + clks[IMX6SL_CLK_OCRAM_PODF] = imx_clk_divider("ocram_podf", "ocram_sel", base + 0x14, 16, 3); + clks[IMX6SL_CLK_PERIPH_CLK2_PODF] = imx_clk_divider("periph_clk2_podf", "periph_clk2_sel", base + 0x14, 27, 3); + clks[IMX6SL_CLK_PERIPH2_CLK2_PODF] = imx_clk_divider("periph2_clk2_podf", "periph2_clk2_sel", base + 0x14, 0, 3); + clks[IMX6SL_CLK_IPG] = imx_clk_divider("ipg", "ahb", base + 0x14, 8, 2); + clks[IMX6SL_CLK_CSI_PODF] = imx_clk_divider("csi_podf", "csi_sel", base + 0x3c, 11, 3); + clks[IMX6SL_CLK_LCDIF_AXI_PODF] = imx_clk_divider("lcdif_axi_podf", "lcdif_axi_sel", base + 0x3c, 16, 3); + clks[IMX6SL_CLK_USDHC1_PODF] = imx_clk_divider("usdhc1_podf", "usdhc1_sel", base + 0x24, 11, 3); + clks[IMX6SL_CLK_USDHC2_PODF] = imx_clk_divider("usdhc2_podf", "usdhc2_sel", base + 0x24, 16, 3); + clks[IMX6SL_CLK_USDHC3_PODF] = imx_clk_divider("usdhc3_podf", "usdhc3_sel", base + 0x24, 19, 3); + clks[IMX6SL_CLK_USDHC4_PODF] = imx_clk_divider("usdhc4_podf", "usdhc4_sel", base + 0x24, 22, 3); + clks[IMX6SL_CLK_SSI1_PRED] = imx_clk_divider("ssi1_pred", "ssi1_sel", base + 0x28, 6, 3); + clks[IMX6SL_CLK_SSI1_PODF] = imx_clk_divider("ssi1_podf", "ssi1_pred", base + 0x28, 0, 6); + clks[IMX6SL_CLK_SSI2_PRED] = imx_clk_divider("ssi2_pred", "ssi2_sel", base + 0x2c, 6, 3); + clks[IMX6SL_CLK_SSI2_PODF] = imx_clk_divider("ssi2_podf", "ssi2_pred", base + 0x2c, 0, 6); + clks[IMX6SL_CLK_SSI3_PRED] = imx_clk_divider("ssi3_pred", "ssi3_sel", base + 0x28, 22, 3); + clks[IMX6SL_CLK_SSI3_PODF] = imx_clk_divider("ssi3_podf", "ssi3_pred", base + 0x28, 16, 6); + clks[IMX6SL_CLK_PERCLK] = imx_clk_fixup_divider("perclk", "perclk_sel", base + 0x1c, 0, 6, imx_cscmr1_fixup); + clks[IMX6SL_CLK_PXP_AXI_PODF] = imx_clk_divider("pxp_axi_podf", "pxp_axi_sel", base + 0x34, 3, 3); + clks[IMX6SL_CLK_EPDC_AXI_PODF] = imx_clk_divider("epdc_axi_podf", "epdc_axi_sel", base + 0x34, 12, 3); + clks[IMX6SL_CLK_GPU2D_OVG_PODF] = imx_clk_divider("gpu2d_ovg_podf", "gpu2d_ovg_sel", base + 0x18, 26, 3); + clks[IMX6SL_CLK_GPU2D_PODF] = imx_clk_divider("gpu2d_podf", "gpu2d_sel", base + 0x18, 29, 3); + clks[IMX6SL_CLK_LCDIF_PIX_PRED] = imx_clk_divider("lcdif_pix_pred", "lcdif_pix_sel", base + 0x38, 3, 3); + clks[IMX6SL_CLK_EPDC_PIX_PRED] = imx_clk_divider("epdc_pix_pred", "epdc_pix_sel", base + 0x38, 12, 3); + clks[IMX6SL_CLK_LCDIF_PIX_PODF] = imx_clk_fixup_divider("lcdif_pix_podf", "lcdif_pix_pred", base + 0x1c, 20, 3, imx_cscmr1_fixup); + clks[IMX6SL_CLK_EPDC_PIX_PODF] = imx_clk_divider("epdc_pix_podf", "epdc_pix_pred", base + 0x18, 23, 3); + clks[IMX6SL_CLK_SPDIF0_PRED] = imx_clk_divider("spdif0_pred", "spdif0_sel", base + 0x30, 25, 3); + clks[IMX6SL_CLK_SPDIF0_PODF] = imx_clk_divider("spdif0_podf", "spdif0_pred", base + 0x30, 22, 3); + clks[IMX6SL_CLK_SPDIF1_PRED] = imx_clk_divider("spdif1_pred", "spdif1_sel", base + 0x30, 12, 3); + clks[IMX6SL_CLK_SPDIF1_PODF] = imx_clk_divider("spdif1_podf", "spdif1_pred", base + 0x30, 9, 3); + clks[IMX6SL_CLK_EXTERN_AUDIO_PRED] = imx_clk_divider("extern_audio_pred", "extern_audio_sel", base + 0x28, 9, 3); + clks[IMX6SL_CLK_EXTERN_AUDIO_PODF] = imx_clk_divider("extern_audio_podf", "extern_audio_pred", base + 0x28, 25, 3); + clks[IMX6SL_CLK_ECSPI_ROOT] = imx_clk_divider("ecspi_root", "ecspi_sel", base + 0x38, 19, 6); + clks[IMX6SL_CLK_UART_ROOT] = imx_clk_divider("uart_root", "uart_sel", base + 0x24, 0, 6); + + /* name parent_name reg shift width busy: reg, shift */ + clks[IMX6SL_CLK_AHB] = imx_clk_busy_divider("ahb", "periph", base + 0x14, 10, 3, base + 0x48, 1); + clks[IMX6SL_CLK_MMDC_ROOT] = imx_clk_busy_divider("mmdc", "periph2", base + 0x14, 3, 3, base + 0x48, 2); + clks[IMX6SL_CLK_ARM] = imx_clk_busy_divider("arm", "pll1_sw", base + 0x10, 0, 3, base + 0x48, 16); + + /* name parent_name reg shift */ + clks[IMX6SL_CLK_ECSPI1] = imx_clk_gate2("ecspi1", "ecspi_root", base + 0x6c, 0); + clks[IMX6SL_CLK_ECSPI2] = imx_clk_gate2("ecspi2", "ecspi_root", base + 0x6c, 2); + clks[IMX6SL_CLK_ECSPI3] = imx_clk_gate2("ecspi3", "ecspi_root", base + 0x6c, 4); + clks[IMX6SL_CLK_ECSPI4] = imx_clk_gate2("ecspi4", "ecspi_root", base + 0x6c, 6); + clks[IMX6SL_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x6c, 10); + clks[IMX6SL_CLK_EPIT1] = imx_clk_gate2("epit1", "perclk", base + 0x6c, 12); + clks[IMX6SL_CLK_EPIT2] = imx_clk_gate2("epit2", "perclk", base + 0x6c, 14); + clks[IMX6SL_CLK_EXTERN_AUDIO] = imx_clk_gate2("extern_audio", "extern_audio_podf", base + 0x6c, 16); + clks[IMX6SL_CLK_GPT] = imx_clk_gate2("gpt", "perclk", base + 0x6c, 20); + clks[IMX6SL_CLK_GPT_SERIAL] = imx_clk_gate2("gpt_serial", "perclk", base + 0x6c, 22); + clks[IMX6SL_CLK_GPU2D_OVG] = imx_clk_gate2("gpu2d_ovg", "gpu2d_ovg_podf", base + 0x6c, 26); + clks[IMX6SL_CLK_I2C1] = imx_clk_gate2("i2c1", "perclk", base + 0x70, 6); + clks[IMX6SL_CLK_I2C2] = imx_clk_gate2("i2c2", "perclk", base + 0x70, 8); + clks[IMX6SL_CLK_I2C3] = imx_clk_gate2("i2c3", "perclk", base + 0x70, 10); + clks[IMX6SL_CLK_OCOTP] = imx_clk_gate2("ocotp", "ipg", base + 0x70, 12); + clks[IMX6SL_CLK_CSI] = imx_clk_gate2("csi", "csi_podf", base + 0x74, 0); + clks[IMX6SL_CLK_PXP_AXI] = imx_clk_gate2("pxp_axi", "pxp_axi_podf", base + 0x74, 2); + clks[IMX6SL_CLK_EPDC_AXI] = imx_clk_gate2("epdc_axi", "epdc_axi_podf", base + 0x74, 4); + clks[IMX6SL_CLK_LCDIF_AXI] = imx_clk_gate2("lcdif_axi", "lcdif_axi_podf", base + 0x74, 6); + clks[IMX6SL_CLK_LCDIF_PIX] = imx_clk_gate2("lcdif_pix", "lcdif_pix_podf", base + 0x74, 8); + clks[IMX6SL_CLK_EPDC_PIX] = imx_clk_gate2("epdc_pix", "epdc_pix_podf", base + 0x74, 10); + clks[IMX6SL_CLK_OCRAM] = imx_clk_gate2("ocram", "ocram_podf", base + 0x74, 28); + clks[IMX6SL_CLK_PWM1] = imx_clk_gate2("pwm1", "perclk", base + 0x78, 16); + clks[IMX6SL_CLK_PWM2] = imx_clk_gate2("pwm2", "perclk", base + 0x78, 18); + clks[IMX6SL_CLK_PWM3] = imx_clk_gate2("pwm3", "perclk", base + 0x78, 20); + clks[IMX6SL_CLK_PWM4] = imx_clk_gate2("pwm4", "perclk", base + 0x78, 22); + clks[IMX6SL_CLK_SDMA] = imx_clk_gate2("sdma", "ipg", base + 0x7c, 6); + clks[IMX6SL_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12); + clks[IMX6SL_CLK_SPDIF] = imx_clk_gate2("spdif", "spdif0_podf", base + 0x7c, 14); + clks[IMX6SL_CLK_SSI1_IPG] = imx_clk_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1); + clks[IMX6SL_CLK_SSI2_IPG] = imx_clk_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2); + clks[IMX6SL_CLK_SSI3_IPG] = imx_clk_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3); + clks[IMX6SL_CLK_SSI1] = imx_clk_gate2_shared("ssi1", "ssi1_podf", base + 0x7c, 18, &share_count_ssi1); + clks[IMX6SL_CLK_SSI2] = imx_clk_gate2_shared("ssi2", "ssi2_podf", base + 0x7c, 20, &share_count_ssi2); + clks[IMX6SL_CLK_SSI3] = imx_clk_gate2_shared("ssi3", "ssi3_podf", base + 0x7c, 22, &share_count_ssi3); + clks[IMX6SL_CLK_UART] = imx_clk_gate2("uart", "ipg", base + 0x7c, 24); + clks[IMX6SL_CLK_UART_SERIAL] = imx_clk_gate2("uart_serial", "uart_root", base + 0x7c, 26); + clks[IMX6SL_CLK_USBOH3] = imx_clk_gate2("usboh3", "ipg", base + 0x80, 0); + clks[IMX6SL_CLK_USDHC1] = imx_clk_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2); + clks[IMX6SL_CLK_USDHC2] = imx_clk_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4); + clks[IMX6SL_CLK_USDHC3] = imx_clk_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6); + clks[IMX6SL_CLK_USDHC4] = imx_clk_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8); + + imx_check_clocks(clks, ARRAY_SIZE(clks)); + + clk_data.clks = clks; + clk_data.clk_num = ARRAY_SIZE(clks); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + /* Ensure the AHB clk is at 132MHz. */ + ret = clk_set_rate(clks[IMX6SL_CLK_AHB], 132000000); + if (ret) + pr_warn("%s: failed to set AHB clock rate %d!\n", + __func__, ret); + + /* + * Make sure those always on clocks are enabled to maintain the correct + * usecount and enabling/disabling of parent PLLs. + */ + for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) + clk_prepare_enable(clks[clks_init_on[i]]); + + if (IS_ENABLED(CONFIG_USB_MXS_PHY)) { + clk_prepare_enable(clks[IMX6SL_CLK_USBPHY1_GATE]); + clk_prepare_enable(clks[IMX6SL_CLK_USBPHY2_GATE]); + } + + /* Audio-related clocks configuration */ + clk_set_parent(clks[IMX6SL_CLK_SPDIF0_SEL], clks[IMX6SL_CLK_PLL3_PFD3]); + + /* set PLL5 video as lcdif pix parent clock */ + clk_set_parent(clks[IMX6SL_CLK_LCDIF_PIX_SEL], + clks[IMX6SL_CLK_PLL5_VIDEO_DIV]); + + clk_set_parent(clks[IMX6SL_CLK_LCDIF_AXI_SEL], + clks[IMX6SL_CLK_PLL2_PFD2]); +} +CLK_OF_DECLARE(imx6sl, "fsl,imx6sl-ccm", imx6sl_clocks_init); diff --git a/drivers/clk/imx/clk-imx6sx.c b/drivers/clk/imx/clk-imx6sx.c new file mode 100644 index 000000000000..5b95c2c2bf52 --- /dev/null +++ b/drivers/clk/imx/clk-imx6sx.c @@ -0,0 +1,561 @@ +/* + * Copyright (C) 2014 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <dt-bindings/clock/imx6sx-clock.h> +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/types.h> + +#include "clk.h" + +#define CCDR 0x4 +#define BM_CCM_CCDR_MMDC_CH0_MASK (0x2 << 16) + +static const char *step_sels[] = { "osc", "pll2_pfd2_396m", }; +static const char *pll1_sw_sels[] = { "pll1_sys", "step", }; +static const char *periph_pre_sels[] = { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll2_198m", }; +static const char *periph2_pre_sels[] = { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll4_audio_div", }; +static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", "osc", }; +static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "osc", }; +static const char *periph_sels[] = { "periph_pre", "periph_clk2", }; +static const char *periph2_sels[] = { "periph2_pre", "periph2_clk2", }; +static const char *ocram_sels[] = { "periph", "pll2_pfd2_396m", "periph", "pll3_pfd1_540m", }; +static const char *audio_sels[] = { "pll4_audio_div", "pll3_pfd2_508m", "pll5_video_div", "pll3_usb_otg", }; +static const char *gpu_axi_sels[] = { "pll2_pfd2_396m", "pll3_pfd0_720m", "pll3_pfd1_540m", "pll2_bus", }; +static const char *gpu_core_sels[] = { "pll3_pfd1_540m", "pll3_pfd0_720m", "pll2_bus", "pll2_pfd2_396m", }; +static const char *ldb_di0_div_sels[] = { "ldb_di0_div_3_5", "ldb_di0_div_7", }; +static const char *ldb_di1_div_sels[] = { "ldb_di1_div_3_5", "ldb_di1_div_7", }; +static const char *ldb_di0_sels[] = { "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll2_pfd3_594m", "pll2_pfd1_594m", "pll3_pfd3_454m", }; +static const char *ldb_di1_sels[] = { "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll2_bus", "pll3_pfd3_454m", "pll3_pfd2_508m", }; +static const char *pcie_axi_sels[] = { "axi", "ahb", }; +static const char *ssi_sels[] = { "pll3_pfd2_508m", "pll5_video_div", "pll4_audio_div", }; +static const char *qspi1_sels[] = { "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll2_bus", "pll3_pfd3_454m", "pll3_pfd2_508m", }; +static const char *perclk_sels[] = { "ipg", "osc", }; +static const char *usdhc_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", }; +static const char *vid_sels[] = { "pll3_pfd1_540m", "pll3_usb_otg", "pll3_pfd3_454m", "pll4_audio_div", "pll5_video_div", }; +static const char *can_sels[] = { "pll3_60m", "osc", "pll3_80m", "dummy", }; +static const char *uart_sels[] = { "pll3_80m", "osc", }; +static const char *qspi2_sels[] = { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", "pll3_pfd3_454m", "dummy", "dummy", "dummy", }; +static const char *enet_pre_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd2_508m", }; +static const char *enet_sels[] = { "enet_podf", "ipp_di0", "ipp_di1", "ldb_di0", "ldb_di1", }; +static const char *m4_pre_sels[] = { "pll2_bus", "pll3_usb_otg", "osc", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd3_454m", }; +static const char *m4_sels[] = { "m4_pre_sel", "ipp_di0", "ipp_di1", "ldb_di0", "ldb_di1", }; +static const char *eim_slow_sels[] = { "ocram", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", }; +static const char *ecspi_sels[] = { "pll3_60m", "osc", }; +static const char *lcdif1_pre_sels[] = { "pll2_bus", "pll3_pfd3_454m", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd1_594m", "pll3_pfd1_540m", }; +static const char *lcdif1_sels[] = { "lcdif1_podf", "ipp_di0", "ipp_di1", "ldb_di0", "ldb_di1", }; +static const char *lcdif2_pre_sels[] = { "pll2_bus", "pll3_pfd3_454m", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd3_594m", "pll3_pfd1_540m", }; +static const char *lcdif2_sels[] = { "lcdif2_podf", "ipp_di0", "ipp_di1", "ldb_di0", "ldb_di1", }; +static const char *display_sels[] = { "pll2_bus", "pll2_pfd2_396m", "pll3_usb_otg", "pll3_pfd1_540m", }; +static const char *csi_sels[] = { "osc", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", }; +static const char *cko1_sels[] = { + "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video_div", + "dummy", "ocram", "dummy", "pxp_axi", "epdc_axi", "lcdif_pix", + "epdc_pix", "ahb", "ipg", "perclk", "ckil", "pll4_audio_div", +}; +static const char *cko2_sels[] = { + "dummy", "mmdc_p0_fast", "usdhc4", "usdhc1", "dummy", "wrck", + "ecspi_root", "dummy", "usdhc3", "pcie", "arm", "csi_core", + "lcdif_axi", "dummy", "osc", "dummy", "gpu2d_ovg_core", + "usdhc2", "ssi1", "ssi2", "ssi3", "gpu2d_core", "dummy", + "dummy", "dummy", "dummy", "esai_extal", "eim_slow", "uart_serial", + "spdif", "asrc", "dummy", +}; +static const char *cko_sels[] = { "cko1", "cko2", }; +static const char *lvds_sels[] = { + "arm", "pll1_sys", "dummy", "dummy", "dummy", "dummy", "dummy", "pll5_video_div", + "dummy", "dummy", "pcie_ref_125m", "dummy", "usbphy1", "usbphy2", +}; +static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", }; +static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", }; +static const char *pll2_bypass_sels[] = { "pll2", "pll2_bypass_src", }; +static const char *pll3_bypass_sels[] = { "pll3", "pll3_bypass_src", }; +static const char *pll4_bypass_sels[] = { "pll4", "pll4_bypass_src", }; +static const char *pll5_bypass_sels[] = { "pll5", "pll5_bypass_src", }; +static const char *pll6_bypass_sels[] = { "pll6", "pll6_bypass_src", }; +static const char *pll7_bypass_sels[] = { "pll7", "pll7_bypass_src", }; + +static struct clk *clks[IMX6SX_CLK_CLK_END]; +static struct clk_onecell_data clk_data; + +static int const clks_init_on[] __initconst = { + IMX6SX_CLK_AIPS_TZ1, IMX6SX_CLK_AIPS_TZ2, IMX6SX_CLK_AIPS_TZ3, + IMX6SX_CLK_IPMUX1, IMX6SX_CLK_IPMUX2, IMX6SX_CLK_IPMUX3, + IMX6SX_CLK_WAKEUP, IMX6SX_CLK_MMDC_P0_FAST, IMX6SX_CLK_MMDC_P0_IPG, + IMX6SX_CLK_ROM, IMX6SX_CLK_ARM, IMX6SX_CLK_IPG, IMX6SX_CLK_OCRAM, + IMX6SX_CLK_PER2_MAIN, IMX6SX_CLK_PERCLK, IMX6SX_CLK_M4, + IMX6SX_CLK_QSPI1, IMX6SX_CLK_QSPI2, IMX6SX_CLK_UART_IPG, + IMX6SX_CLK_UART_SERIAL, IMX6SX_CLK_I2C3, IMX6SX_CLK_ECSPI5, + IMX6SX_CLK_CAN1_IPG, IMX6SX_CLK_CAN1_SERIAL, IMX6SX_CLK_CAN2_IPG, + IMX6SX_CLK_CAN2_SERIAL, IMX6SX_CLK_CANFD, IMX6SX_CLK_EPIT1, + IMX6SX_CLK_EPIT2, +}; + +static struct clk_div_table clk_enet_ref_table[] = { + { .val = 0, .div = 20, }, + { .val = 1, .div = 10, }, + { .val = 2, .div = 5, }, + { .val = 3, .div = 4, }, + { } +}; + +static struct clk_div_table post_div_table[] = { + { .val = 2, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 0, .div = 4, }, + { } +}; + +static struct clk_div_table video_div_table[] = { + { .val = 0, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 2, .div = 1, }, + { .val = 3, .div = 4, }, + { } +}; + +static u32 share_count_asrc; +static u32 share_count_audio; +static u32 share_count_esai; +static u32 share_count_ssi1; +static u32 share_count_ssi2; +static u32 share_count_ssi3; + +static void __init imx6sx_clocks_init(struct device_node *ccm_node) +{ + struct device_node *np; + void __iomem *base; + int i; + + clks[IMX6SX_CLK_DUMMY] = imx_clk_fixed("dummy", 0); + + clks[IMX6SX_CLK_CKIL] = of_clk_get_by_name(ccm_node, "ckil"); + clks[IMX6SX_CLK_OSC] = of_clk_get_by_name(ccm_node, "osc"); + + /* ipp_di clock is external input */ + clks[IMX6SX_CLK_IPP_DI0] = of_clk_get_by_name(ccm_node, "ipp_di0"); + clks[IMX6SX_CLK_IPP_DI1] = of_clk_get_by_name(ccm_node, "ipp_di1"); + + /* Clock source from external clock via CLK1 PAD */ + clks[IMX6SX_CLK_ANACLK1] = imx_obtain_fixed_clock("anaclk1", 0); + + np = of_find_compatible_node(NULL, NULL, "fsl,imx6sx-anatop"); + base = of_iomap(np, 0); + WARN_ON(!base); + + clks[IMX6SX_PLL1_BYPASS_SRC] = imx_clk_mux("pll1_bypass_src", base + 0x00, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SX_PLL2_BYPASS_SRC] = imx_clk_mux("pll2_bypass_src", base + 0x30, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SX_PLL3_BYPASS_SRC] = imx_clk_mux("pll3_bypass_src", base + 0x10, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SX_PLL4_BYPASS_SRC] = imx_clk_mux("pll4_bypass_src", base + 0x70, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SX_PLL5_BYPASS_SRC] = imx_clk_mux("pll5_bypass_src", base + 0xa0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SX_PLL6_BYPASS_SRC] = imx_clk_mux("pll6_bypass_src", base + 0xe0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6SX_PLL7_BYPASS_SRC] = imx_clk_mux("pll7_bypass_src", base + 0x20, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + + /* type name parent_name base div_mask */ + clks[IMX6SX_CLK_PLL1] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1", "pll1_bypass_src", base + 0x00, 0x7f); + clks[IMX6SX_CLK_PLL2] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2", "pll2_bypass_src", base + 0x30, 0x1); + clks[IMX6SX_CLK_PLL3] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3", "pll3_bypass_src", base + 0x10, 0x3); + clks[IMX6SX_CLK_PLL4] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4", "pll4_bypass_src", base + 0x70, 0x7f); + clks[IMX6SX_CLK_PLL5] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5", "pll5_bypass_src", base + 0xa0, 0x7f); + clks[IMX6SX_CLK_PLL6] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6", "pll6_bypass_src", base + 0xe0, 0x3); + clks[IMX6SX_CLK_PLL7] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7", "pll7_bypass_src", base + 0x20, 0x3); + + clks[IMX6SX_PLL1_BYPASS] = imx_clk_mux_flags("pll1_bypass", base + 0x00, 16, 1, pll1_bypass_sels, ARRAY_SIZE(pll1_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_PLL2_BYPASS] = imx_clk_mux_flags("pll2_bypass", base + 0x30, 16, 1, pll2_bypass_sels, ARRAY_SIZE(pll2_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_PLL3_BYPASS] = imx_clk_mux_flags("pll3_bypass", base + 0x10, 16, 1, pll3_bypass_sels, ARRAY_SIZE(pll3_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_PLL4_BYPASS] = imx_clk_mux_flags("pll4_bypass", base + 0x70, 16, 1, pll4_bypass_sels, ARRAY_SIZE(pll4_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_PLL5_BYPASS] = imx_clk_mux_flags("pll5_bypass", base + 0xa0, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_PLL6_BYPASS] = imx_clk_mux_flags("pll6_bypass", base + 0xe0, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_PLL7_BYPASS] = imx_clk_mux_flags("pll7_bypass", base + 0x20, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels), CLK_SET_RATE_PARENT); + + /* Do not bypass PLLs initially */ + clk_set_parent(clks[IMX6SX_PLL1_BYPASS], clks[IMX6SX_CLK_PLL1]); + clk_set_parent(clks[IMX6SX_PLL2_BYPASS], clks[IMX6SX_CLK_PLL2]); + clk_set_parent(clks[IMX6SX_PLL3_BYPASS], clks[IMX6SX_CLK_PLL3]); + clk_set_parent(clks[IMX6SX_PLL4_BYPASS], clks[IMX6SX_CLK_PLL4]); + clk_set_parent(clks[IMX6SX_PLL5_BYPASS], clks[IMX6SX_CLK_PLL5]); + clk_set_parent(clks[IMX6SX_PLL6_BYPASS], clks[IMX6SX_CLK_PLL6]); + clk_set_parent(clks[IMX6SX_PLL7_BYPASS], clks[IMX6SX_CLK_PLL7]); + + clks[IMX6SX_CLK_PLL1_SYS] = imx_clk_gate("pll1_sys", "pll1_bypass", base + 0x00, 13); + clks[IMX6SX_CLK_PLL2_BUS] = imx_clk_gate("pll2_bus", "pll2_bypass", base + 0x30, 13); + clks[IMX6SX_CLK_PLL3_USB_OTG] = imx_clk_gate("pll3_usb_otg", "pll3_bypass", base + 0x10, 13); + clks[IMX6SX_CLK_PLL4_AUDIO] = imx_clk_gate("pll4_audio", "pll4_bypass", base + 0x70, 13); + clks[IMX6SX_CLK_PLL5_VIDEO] = imx_clk_gate("pll5_video", "pll5_bypass", base + 0xa0, 13); + clks[IMX6SX_CLK_PLL6_ENET] = imx_clk_gate("pll6_enet", "pll6_bypass", base + 0xe0, 13); + clks[IMX6SX_CLK_PLL7_USB_HOST] = imx_clk_gate("pll7_usb_host", "pll7_bypass", base + 0x20, 13); + + /* + * Bit 20 is the reserved and read-only bit, we do this only for: + * - Do nothing for usbphy clk_enable/disable + * - Keep refcount when do usbphy clk_enable/disable, in that case, + * the clk framework may need to enable/disable usbphy's parent + */ + clks[IMX6SX_CLK_USBPHY1] = imx_clk_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20); + clks[IMX6SX_CLK_USBPHY2] = imx_clk_gate("usbphy2", "pll7_usb_host", base + 0x20, 20); + + /* + * usbphy*_gate needs to be on after system boots up, and software + * never needs to control it anymore. + */ + clks[IMX6SX_CLK_USBPHY1_GATE] = imx_clk_gate("usbphy1_gate", "dummy", base + 0x10, 6); + clks[IMX6SX_CLK_USBPHY2_GATE] = imx_clk_gate("usbphy2_gate", "dummy", base + 0x20, 6); + + /* FIXME 100MHz is used for pcie ref for all imx6 pcie, excepted imx6q */ + clks[IMX6SX_CLK_PCIE_REF] = imx_clk_fixed_factor("pcie_ref", "pll6_enet", 1, 5); + clks[IMX6SX_CLK_PCIE_REF_125M] = imx_clk_gate("pcie_ref_125m", "pcie_ref", base + 0xe0, 19); + + clks[IMX6SX_CLK_LVDS1_OUT] = imx_clk_gate_exclusive("lvds1_out", "lvds1_sel", base + 0x160, 10, BIT(12)); + clks[IMX6SX_CLK_LVDS1_IN] = imx_clk_gate_exclusive("lvds1_in", "anaclk1", base + 0x160, 12, BIT(10)); + + clks[IMX6SX_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0, + base + 0xe0, 0, 2, 0, clk_enet_ref_table, + &imx_ccm_lock); + clks[IMX6SX_CLK_ENET2_REF] = clk_register_divider_table(NULL, "enet2_ref", "pll6_enet", 0, + base + 0xe0, 2, 2, 0, clk_enet_ref_table, + &imx_ccm_lock); + clks[IMX6SX_CLK_ENET2_REF_125M] = imx_clk_gate("enet2_ref_125m", "enet2_ref", base + 0xe0, 20); + + clks[IMX6SX_CLK_ENET_PTP_REF] = imx_clk_fixed_factor("enet_ptp_ref", "pll6_enet", 1, 20); + clks[IMX6SX_CLK_ENET_PTP] = imx_clk_gate("enet_ptp_25m", "enet_ptp_ref", base + 0xe0, 21); + + /* name parent_name reg idx */ + clks[IMX6SX_CLK_PLL2_PFD0] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus", base + 0x100, 0); + clks[IMX6SX_CLK_PLL2_PFD1] = imx_clk_pfd("pll2_pfd1_594m", "pll2_bus", base + 0x100, 1); + clks[IMX6SX_CLK_PLL2_PFD2] = imx_clk_pfd("pll2_pfd2_396m", "pll2_bus", base + 0x100, 2); + clks[IMX6SX_CLK_PLL2_PFD3] = imx_clk_pfd("pll2_pfd3_594m", "pll2_bus", base + 0x100, 3); + clks[IMX6SX_CLK_PLL3_PFD0] = imx_clk_pfd("pll3_pfd0_720m", "pll3_usb_otg", base + 0xf0, 0); + clks[IMX6SX_CLK_PLL3_PFD1] = imx_clk_pfd("pll3_pfd1_540m", "pll3_usb_otg", base + 0xf0, 1); + clks[IMX6SX_CLK_PLL3_PFD2] = imx_clk_pfd("pll3_pfd2_508m", "pll3_usb_otg", base + 0xf0, 2); + clks[IMX6SX_CLK_PLL3_PFD3] = imx_clk_pfd("pll3_pfd3_454m", "pll3_usb_otg", base + 0xf0, 3); + + /* name parent_name mult div */ + clks[IMX6SX_CLK_PLL2_198M] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2_396m", 1, 2); + clks[IMX6SX_CLK_PLL3_120M] = imx_clk_fixed_factor("pll3_120m", "pll3_usb_otg", 1, 4); + clks[IMX6SX_CLK_PLL3_80M] = imx_clk_fixed_factor("pll3_80m", "pll3_usb_otg", 1, 6); + clks[IMX6SX_CLK_PLL3_60M] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8); + clks[IMX6SX_CLK_TWD] = imx_clk_fixed_factor("twd", "arm", 1, 2); + clks[IMX6SX_CLK_GPT_3M] = imx_clk_fixed_factor("gpt_3m", "osc", 1, 8); + + clks[IMX6SX_CLK_PLL4_POST_DIV] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", + CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock); + clks[IMX6SX_CLK_PLL4_AUDIO_DIV] = clk_register_divider(NULL, "pll4_audio_div", "pll4_post_div", + CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock); + clks[IMX6SX_CLK_PLL5_POST_DIV] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", + CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock); + clks[IMX6SX_CLK_PLL5_VIDEO_DIV] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", + CLK_SET_RATE_PARENT, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock); + + /* name reg shift width parent_names num_parents */ + clks[IMX6SX_CLK_LVDS1_SEL] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); + + np = ccm_node; + base = of_iomap(np, 0); + WARN_ON(!base); + + /* name reg shift width parent_names num_parents */ + clks[IMX6SX_CLK_STEP] = imx_clk_mux("step", base + 0xc, 8, 1, step_sels, ARRAY_SIZE(step_sels)); + clks[IMX6SX_CLK_PLL1_SW] = imx_clk_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels)); + clks[IMX6SX_CLK_OCRAM_SEL] = imx_clk_mux("ocram_sel", base + 0x14, 6, 2, ocram_sels, ARRAY_SIZE(ocram_sels)); + clks[IMX6SX_CLK_PERIPH_PRE] = imx_clk_mux("periph_pre", base + 0x18, 18, 2, periph_pre_sels, ARRAY_SIZE(periph_pre_sels)); + clks[IMX6SX_CLK_PERIPH2_PRE] = imx_clk_mux("periph2_pre", base + 0x18, 21, 2, periph2_pre_sels, ARRAY_SIZE(periph2_pre_sels)); + clks[IMX6SX_CLK_PERIPH_CLK2_SEL] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels)); + clks[IMX6SX_CLK_PERIPH2_CLK2_SEL] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels)); + clks[IMX6SX_CLK_PCIE_AXI_SEL] = imx_clk_mux("pcie_axi_sel", base + 0x18, 10, 1, pcie_axi_sels, ARRAY_SIZE(pcie_axi_sels)); + clks[IMX6SX_CLK_GPU_AXI_SEL] = imx_clk_mux("gpu_axi_sel", base + 0x18, 8, 2, gpu_axi_sels, ARRAY_SIZE(gpu_axi_sels)); + clks[IMX6SX_CLK_GPU_CORE_SEL] = imx_clk_mux("gpu_core_sel", base + 0x18, 4, 2, gpu_core_sels, ARRAY_SIZE(gpu_core_sels)); + clks[IMX6SX_CLK_EIM_SLOW_SEL] = imx_clk_mux("eim_slow_sel", base + 0x1c, 29, 2, eim_slow_sels, ARRAY_SIZE(eim_slow_sels)); + clks[IMX6SX_CLK_USDHC1_SEL] = imx_clk_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); + clks[IMX6SX_CLK_USDHC2_SEL] = imx_clk_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); + clks[IMX6SX_CLK_USDHC3_SEL] = imx_clk_mux("usdhc3_sel", base + 0x1c, 18, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); + clks[IMX6SX_CLK_USDHC4_SEL] = imx_clk_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); + clks[IMX6SX_CLK_SSI3_SEL] = imx_clk_mux("ssi3_sel", base + 0x1c, 14, 2, ssi_sels, ARRAY_SIZE(ssi_sels)); + clks[IMX6SX_CLK_SSI2_SEL] = imx_clk_mux("ssi2_sel", base + 0x1c, 12, 2, ssi_sels, ARRAY_SIZE(ssi_sels)); + clks[IMX6SX_CLK_SSI1_SEL] = imx_clk_mux("ssi1_sel", base + 0x1c, 10, 2, ssi_sels, ARRAY_SIZE(ssi_sels)); + clks[IMX6SX_CLK_QSPI1_SEL] = imx_clk_mux_flags("qspi1_sel", base + 0x1c, 7, 3, qspi1_sels, ARRAY_SIZE(qspi1_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_PERCLK_SEL] = imx_clk_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels)); + clks[IMX6SX_CLK_VID_SEL] = imx_clk_mux("vid_sel", base + 0x20, 21, 3, vid_sels, ARRAY_SIZE(vid_sels)); + clks[IMX6SX_CLK_ESAI_SEL] = imx_clk_mux("esai_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels)); + clks[IMX6SX_CLK_CAN_SEL] = imx_clk_mux("can_sel", base + 0x20, 8, 2, can_sels, ARRAY_SIZE(can_sels)); + clks[IMX6SX_CLK_UART_SEL] = imx_clk_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels)); + clks[IMX6SX_CLK_QSPI2_SEL] = imx_clk_mux_flags("qspi2_sel", base + 0x2c, 15, 3, qspi2_sels, ARRAY_SIZE(qspi2_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_SPDIF_SEL] = imx_clk_mux("spdif_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels)); + clks[IMX6SX_CLK_AUDIO_SEL] = imx_clk_mux("audio_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels)); + clks[IMX6SX_CLK_ENET_PRE_SEL] = imx_clk_mux("enet_pre_sel", base + 0x34, 15, 3, enet_pre_sels, ARRAY_SIZE(enet_pre_sels)); + clks[IMX6SX_CLK_ENET_SEL] = imx_clk_mux("enet_sel", base + 0x34, 9, 3, enet_sels, ARRAY_SIZE(enet_sels)); + clks[IMX6SX_CLK_M4_PRE_SEL] = imx_clk_mux("m4_pre_sel", base + 0x34, 6, 3, m4_pre_sels, ARRAY_SIZE(m4_pre_sels)); + clks[IMX6SX_CLK_M4_SEL] = imx_clk_mux("m4_sel", base + 0x34, 0, 3, m4_sels, ARRAY_SIZE(m4_sels)); + clks[IMX6SX_CLK_ECSPI_SEL] = imx_clk_mux("ecspi_sel", base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels)); + clks[IMX6SX_CLK_LCDIF2_PRE_SEL] = imx_clk_mux("lcdif2_pre_sel", base + 0x38, 6, 3, lcdif2_pre_sels, ARRAY_SIZE(lcdif2_pre_sels)); + clks[IMX6SX_CLK_LCDIF2_SEL] = imx_clk_mux("lcdif2_sel", base + 0x38, 0, 3, lcdif2_sels, ARRAY_SIZE(lcdif2_sels)); + clks[IMX6SX_CLK_DISPLAY_SEL] = imx_clk_mux("display_sel", base + 0x3c, 14, 2, display_sels, ARRAY_SIZE(display_sels)); + clks[IMX6SX_CLK_CSI_SEL] = imx_clk_mux("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels)); + clks[IMX6SX_CLK_CKO1_SEL] = imx_clk_mux("cko1_sel", base + 0x60, 0, 4, cko1_sels, ARRAY_SIZE(cko1_sels)); + clks[IMX6SX_CLK_CKO2_SEL] = imx_clk_mux("cko2_sel", base + 0x60, 16, 5, cko2_sels, ARRAY_SIZE(cko2_sels)); + clks[IMX6SX_CLK_CKO] = imx_clk_mux("cko", base + 0x60, 8, 1, cko_sels, ARRAY_SIZE(cko_sels)); + + clks[IMX6SX_CLK_LDB_DI1_DIV_SEL] = imx_clk_mux_flags("ldb_di1_div_sel", base + 0x20, 11, 1, ldb_di1_div_sels, ARRAY_SIZE(ldb_di1_div_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_LDB_DI0_DIV_SEL] = imx_clk_mux_flags("ldb_di0_div_sel", base + 0x20, 10, 1, ldb_di0_div_sels, ARRAY_SIZE(ldb_di0_div_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_LDB_DI1_SEL] = imx_clk_mux_flags("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di1_sels, ARRAY_SIZE(ldb_di1_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_LDB_DI0_SEL] = imx_clk_mux_flags("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di0_sels, ARRAY_SIZE(ldb_di0_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_LCDIF1_PRE_SEL] = imx_clk_mux_flags("lcdif1_pre_sel", base + 0x38, 15, 3, lcdif1_pre_sels, ARRAY_SIZE(lcdif1_pre_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_LCDIF1_SEL] = imx_clk_mux_flags("lcdif1_sel", base + 0x38, 9, 3, lcdif1_sels, ARRAY_SIZE(lcdif1_sels), CLK_SET_RATE_PARENT); + + /* name parent_name reg shift width */ + clks[IMX6SX_CLK_PERIPH_CLK2] = imx_clk_divider("periph_clk2", "periph_clk2_sel", base + 0x14, 27, 3); + clks[IMX6SX_CLK_PERIPH2_CLK2] = imx_clk_divider("periph2_clk2", "periph2_clk2_sel", base + 0x14, 0, 3); + clks[IMX6SX_CLK_IPG] = imx_clk_divider("ipg", "ahb", base + 0x14, 8, 2); + clks[IMX6SX_CLK_GPU_CORE_PODF] = imx_clk_divider("gpu_core_podf", "gpu_core_sel", base + 0x18, 29, 3); + clks[IMX6SX_CLK_GPU_AXI_PODF] = imx_clk_divider("gpu_axi_podf", "gpu_axi_sel", base + 0x18, 26, 3); + clks[IMX6SX_CLK_LCDIF1_PODF] = imx_clk_divider("lcdif1_podf", "lcdif1_pred", base + 0x18, 23, 3); + clks[IMX6SX_CLK_QSPI1_PODF] = imx_clk_divider("qspi1_podf", "qspi1_sel", base + 0x1c, 26, 3); + clks[IMX6SX_CLK_EIM_SLOW_PODF] = imx_clk_divider("eim_slow_podf", "eim_slow_sel", base + 0x1c, 23, 3); + clks[IMX6SX_CLK_LCDIF2_PODF] = imx_clk_divider("lcdif2_podf", "lcdif2_pred", base + 0x1c, 20, 3); + clks[IMX6SX_CLK_PERCLK] = imx_clk_divider("perclk", "perclk_sel", base + 0x1c, 0, 6); + clks[IMX6SX_CLK_VID_PODF] = imx_clk_divider("vid_podf", "vid_sel", base + 0x20, 24, 2); + clks[IMX6SX_CLK_CAN_PODF] = imx_clk_divider("can_podf", "can_sel", base + 0x20, 2, 6); + clks[IMX6SX_CLK_USDHC4_PODF] = imx_clk_divider("usdhc4_podf", "usdhc4_sel", base + 0x24, 22, 3); + clks[IMX6SX_CLK_USDHC3_PODF] = imx_clk_divider("usdhc3_podf", "usdhc3_sel", base + 0x24, 19, 3); + clks[IMX6SX_CLK_USDHC2_PODF] = imx_clk_divider("usdhc2_podf", "usdhc2_sel", base + 0x24, 16, 3); + clks[IMX6SX_CLK_USDHC1_PODF] = imx_clk_divider("usdhc1_podf", "usdhc1_sel", base + 0x24, 11, 3); + clks[IMX6SX_CLK_UART_PODF] = imx_clk_divider("uart_podf", "uart_sel", base + 0x24, 0, 6); + clks[IMX6SX_CLK_ESAI_PRED] = imx_clk_divider("esai_pred", "esai_sel", base + 0x28, 9, 3); + clks[IMX6SX_CLK_ESAI_PODF] = imx_clk_divider("esai_podf", "esai_pred", base + 0x28, 25, 3); + clks[IMX6SX_CLK_SSI3_PRED] = imx_clk_divider("ssi3_pred", "ssi3_sel", base + 0x28, 22, 3); + clks[IMX6SX_CLK_SSI3_PODF] = imx_clk_divider("ssi3_podf", "ssi3_pred", base + 0x28, 16, 6); + clks[IMX6SX_CLK_SSI1_PRED] = imx_clk_divider("ssi1_pred", "ssi1_sel", base + 0x28, 6, 3); + clks[IMX6SX_CLK_SSI1_PODF] = imx_clk_divider("ssi1_podf", "ssi1_pred", base + 0x28, 0, 6); + clks[IMX6SX_CLK_QSPI2_PRED] = imx_clk_divider("qspi2_pred", "qspi2_sel", base + 0x2c, 18, 3); + clks[IMX6SX_CLK_QSPI2_PODF] = imx_clk_divider("qspi2_podf", "qspi2_pred", base + 0x2c, 21, 6); + clks[IMX6SX_CLK_SSI2_PRED] = imx_clk_divider("ssi2_pred", "ssi2_sel", base + 0x2c, 6, 3); + clks[IMX6SX_CLK_SSI2_PODF] = imx_clk_divider("ssi2_podf", "ssi2_pred", base + 0x2c, 0, 6); + clks[IMX6SX_CLK_SPDIF_PRED] = imx_clk_divider("spdif_pred", "spdif_sel", base + 0x30, 25, 3); + clks[IMX6SX_CLK_SPDIF_PODF] = imx_clk_divider("spdif_podf", "spdif_pred", base + 0x30, 22, 3); + clks[IMX6SX_CLK_AUDIO_PRED] = imx_clk_divider("audio_pred", "audio_sel", base + 0x30, 12, 3); + clks[IMX6SX_CLK_AUDIO_PODF] = imx_clk_divider("audio_podf", "audio_pred", base + 0x30, 9, 3); + clks[IMX6SX_CLK_ENET_PODF] = imx_clk_divider("enet_podf", "enet_pre_sel", base + 0x34, 12, 3); + clks[IMX6SX_CLK_M4_PODF] = imx_clk_divider("m4_podf", "m4_sel", base + 0x34, 3, 3); + clks[IMX6SX_CLK_ECSPI_PODF] = imx_clk_divider("ecspi_podf", "ecspi_sel", base + 0x38, 19, 6); + clks[IMX6SX_CLK_LCDIF1_PRED] = imx_clk_divider("lcdif1_pred", "lcdif1_pre_sel", base + 0x38, 12, 3); + clks[IMX6SX_CLK_LCDIF2_PRED] = imx_clk_divider("lcdif2_pred", "lcdif2_pre_sel", base + 0x38, 3, 3); + clks[IMX6SX_CLK_DISPLAY_PODF] = imx_clk_divider("display_podf", "display_sel", base + 0x3c, 16, 3); + clks[IMX6SX_CLK_CSI_PODF] = imx_clk_divider("csi_podf", "csi_sel", base + 0x3c, 11, 3); + clks[IMX6SX_CLK_CKO1_PODF] = imx_clk_divider("cko1_podf", "cko1_sel", base + 0x60, 4, 3); + clks[IMX6SX_CLK_CKO2_PODF] = imx_clk_divider("cko2_podf", "cko2_sel", base + 0x60, 21, 3); + + clks[IMX6SX_CLK_LDB_DI0_DIV_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7); + clks[IMX6SX_CLK_LDB_DI0_DIV_7] = imx_clk_fixed_factor("ldb_di0_div_7", "ldb_di0_sel", 1, 7); + clks[IMX6SX_CLK_LDB_DI1_DIV_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7); + clks[IMX6SX_CLK_LDB_DI1_DIV_7] = imx_clk_fixed_factor("ldb_di1_div_7", "ldb_di1_sel", 1, 7); + + /* name reg shift width busy: reg, shift parent_names num_parents */ + clks[IMX6SX_CLK_PERIPH] = imx_clk_busy_mux("periph", base + 0x14, 25, 1, base + 0x48, 5, periph_sels, ARRAY_SIZE(periph_sels)); + clks[IMX6SX_CLK_PERIPH2] = imx_clk_busy_mux("periph2", base + 0x14, 26, 1, base + 0x48, 3, periph2_sels, ARRAY_SIZE(periph2_sels)); + /* name parent_name reg shift width busy: reg, shift */ + clks[IMX6SX_CLK_OCRAM_PODF] = imx_clk_busy_divider("ocram_podf", "ocram_sel", base + 0x14, 16, 3, base + 0x48, 0); + clks[IMX6SX_CLK_AHB] = imx_clk_busy_divider("ahb", "periph", base + 0x14, 10, 3, base + 0x48, 1); + clks[IMX6SX_CLK_MMDC_PODF] = imx_clk_busy_divider("mmdc_podf", "periph2", base + 0x14, 3, 3, base + 0x48, 2); + clks[IMX6SX_CLK_ARM] = imx_clk_busy_divider("arm", "pll1_sw", base + 0x10, 0, 3, base + 0x48, 16); + + /* name parent_name reg shift */ + /* CCGR0 */ + clks[IMX6SX_CLK_AIPS_TZ1] = imx_clk_gate2("aips_tz1", "ahb", base + 0x68, 0); + clks[IMX6SX_CLK_AIPS_TZ2] = imx_clk_gate2("aips_tz2", "ahb", base + 0x68, 2); + clks[IMX6SX_CLK_APBH_DMA] = imx_clk_gate2("apbh_dma", "usdhc3", base + 0x68, 4); + clks[IMX6SX_CLK_ASRC_MEM] = imx_clk_gate2_shared("asrc_mem", "ahb", base + 0x68, 6, &share_count_asrc); + clks[IMX6SX_CLK_ASRC_IPG] = imx_clk_gate2_shared("asrc_ipg", "ahb", base + 0x68, 6, &share_count_asrc); + clks[IMX6SX_CLK_CAAM_MEM] = imx_clk_gate2("caam_mem", "ahb", base + 0x68, 8); + clks[IMX6SX_CLK_CAAM_ACLK] = imx_clk_gate2("caam_aclk", "ahb", base + 0x68, 10); + clks[IMX6SX_CLK_CAAM_IPG] = imx_clk_gate2("caam_ipg", "ipg", base + 0x68, 12); + clks[IMX6SX_CLK_CAN1_IPG] = imx_clk_gate2("can1_ipg", "ipg", base + 0x68, 14); + clks[IMX6SX_CLK_CAN1_SERIAL] = imx_clk_gate2("can1_serial", "can_podf", base + 0x68, 16); + clks[IMX6SX_CLK_CAN2_IPG] = imx_clk_gate2("can2_ipg", "ipg", base + 0x68, 18); + clks[IMX6SX_CLK_CAN2_SERIAL] = imx_clk_gate2("can2_serial", "can_podf", base + 0x68, 20); + clks[IMX6SX_CLK_DCIC1] = imx_clk_gate2("dcic1", "display_podf", base + 0x68, 24); + clks[IMX6SX_CLK_DCIC2] = imx_clk_gate2("dcic2", "display_podf", base + 0x68, 26); + clks[IMX6SX_CLK_AIPS_TZ3] = imx_clk_gate2("aips_tz3", "ahb", base + 0x68, 30); + + /* CCGR1 */ + clks[IMX6SX_CLK_ECSPI1] = imx_clk_gate2("ecspi1", "ecspi_podf", base + 0x6c, 0); + clks[IMX6SX_CLK_ECSPI2] = imx_clk_gate2("ecspi2", "ecspi_podf", base + 0x6c, 2); + clks[IMX6SX_CLK_ECSPI3] = imx_clk_gate2("ecspi3", "ecspi_podf", base + 0x6c, 4); + clks[IMX6SX_CLK_ECSPI4] = imx_clk_gate2("ecspi4", "ecspi_podf", base + 0x6c, 6); + clks[IMX6SX_CLK_ECSPI5] = imx_clk_gate2("ecspi5", "ecspi_podf", base + 0x6c, 8); + clks[IMX6SX_CLK_EPIT1] = imx_clk_gate2("epit1", "perclk", base + 0x6c, 12); + clks[IMX6SX_CLK_EPIT2] = imx_clk_gate2("epit2", "perclk", base + 0x6c, 14); + clks[IMX6SX_CLK_ESAI_EXTAL] = imx_clk_gate2_shared("esai_extal", "esai_podf", base + 0x6c, 16, &share_count_esai); + clks[IMX6SX_CLK_ESAI_IPG] = imx_clk_gate2_shared("esai_ipg", "ahb", base + 0x6c, 16, &share_count_esai); + clks[IMX6SX_CLK_ESAI_MEM] = imx_clk_gate2_shared("esai_mem", "ahb", base + 0x6c, 16, &share_count_esai); + clks[IMX6SX_CLK_WAKEUP] = imx_clk_gate2("wakeup", "ipg", base + 0x6c, 18); + clks[IMX6SX_CLK_GPT_BUS] = imx_clk_gate2("gpt_bus", "perclk", base + 0x6c, 20); + clks[IMX6SX_CLK_GPT_SERIAL] = imx_clk_gate2("gpt_serial", "perclk", base + 0x6c, 22); + clks[IMX6SX_CLK_GPU] = imx_clk_gate2("gpu", "gpu_core_podf", base + 0x6c, 26); + clks[IMX6SX_CLK_CANFD] = imx_clk_gate2("canfd", "can_podf", base + 0x6c, 30); + + /* CCGR2 */ + clks[IMX6SX_CLK_CSI] = imx_clk_gate2("csi", "csi_podf", base + 0x70, 2); + clks[IMX6SX_CLK_I2C1] = imx_clk_gate2("i2c1", "perclk", base + 0x70, 6); + clks[IMX6SX_CLK_I2C2] = imx_clk_gate2("i2c2", "perclk", base + 0x70, 8); + clks[IMX6SX_CLK_I2C3] = imx_clk_gate2("i2c3", "perclk", base + 0x70, 10); + clks[IMX6SX_CLK_OCOTP] = imx_clk_gate2("ocotp", "ipg", base + 0x70, 12); + clks[IMX6SX_CLK_IOMUXC] = imx_clk_gate2("iomuxc", "lcdif1_podf", base + 0x70, 14); + clks[IMX6SX_CLK_IPMUX1] = imx_clk_gate2("ipmux1", "ahb", base + 0x70, 16); + clks[IMX6SX_CLK_IPMUX2] = imx_clk_gate2("ipmux2", "ahb", base + 0x70, 18); + clks[IMX6SX_CLK_IPMUX3] = imx_clk_gate2("ipmux3", "ahb", base + 0x70, 20); + clks[IMX6SX_CLK_TZASC1] = imx_clk_gate2("tzasc1", "mmdc_podf", base + 0x70, 22); + clks[IMX6SX_CLK_LCDIF_APB] = imx_clk_gate2("lcdif_apb", "display_podf", base + 0x70, 28); + clks[IMX6SX_CLK_PXP_AXI] = imx_clk_gate2("pxp_axi", "display_podf", base + 0x70, 30); + + /* CCGR3 */ + clks[IMX6SX_CLK_M4] = imx_clk_gate2("m4", "m4_podf", base + 0x74, 2); + clks[IMX6SX_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x74, 4); + clks[IMX6SX_CLK_ENET_AHB] = imx_clk_gate2("enet_ahb", "enet_sel", base + 0x74, 4); + clks[IMX6SX_CLK_DISPLAY_AXI] = imx_clk_gate2("display_axi", "display_podf", base + 0x74, 6); + clks[IMX6SX_CLK_LCDIF2_PIX] = imx_clk_gate2("lcdif2_pix", "lcdif2_sel", base + 0x74, 8); + clks[IMX6SX_CLK_LCDIF1_PIX] = imx_clk_gate2("lcdif1_pix", "lcdif1_sel", base + 0x74, 10); + clks[IMX6SX_CLK_LDB_DI0] = imx_clk_gate2("ldb_di0", "ldb_di0_div_sel", base + 0x74, 12); + clks[IMX6SX_CLK_QSPI1] = imx_clk_gate2("qspi1", "qspi1_podf", base + 0x74, 14); + clks[IMX6SX_CLK_MLB] = imx_clk_gate2("mlb", "ahb", base + 0x74, 18); + clks[IMX6SX_CLK_MMDC_P0_FAST] = imx_clk_gate2("mmdc_p0_fast", "mmdc_podf", base + 0x74, 20); + clks[IMX6SX_CLK_MMDC_P0_IPG] = imx_clk_gate2("mmdc_p0_ipg", "ipg", base + 0x74, 24); + clks[IMX6SX_CLK_OCRAM] = imx_clk_gate2("ocram", "ocram_podf", base + 0x74, 28); + + /* CCGR4 */ + clks[IMX6SX_CLK_PCIE_AXI] = imx_clk_gate2("pcie_axi", "display_podf", base + 0x78, 0); + clks[IMX6SX_CLK_QSPI2] = imx_clk_gate2("qspi2", "qspi2_podf", base + 0x78, 10); + clks[IMX6SX_CLK_PER1_BCH] = imx_clk_gate2("per1_bch", "usdhc3", base + 0x78, 12); + clks[IMX6SX_CLK_PER2_MAIN] = imx_clk_gate2("per2_main", "ahb", base + 0x78, 14); + clks[IMX6SX_CLK_PWM1] = imx_clk_gate2("pwm1", "perclk", base + 0x78, 16); + clks[IMX6SX_CLK_PWM2] = imx_clk_gate2("pwm2", "perclk", base + 0x78, 18); + clks[IMX6SX_CLK_PWM3] = imx_clk_gate2("pwm3", "perclk", base + 0x78, 20); + clks[IMX6SX_CLK_PWM4] = imx_clk_gate2("pwm4", "perclk", base + 0x78, 22); + clks[IMX6SX_CLK_GPMI_BCH_APB] = imx_clk_gate2("gpmi_bch_apb", "usdhc3", base + 0x78, 24); + clks[IMX6SX_CLK_GPMI_BCH] = imx_clk_gate2("gpmi_bch", "usdhc4", base + 0x78, 26); + clks[IMX6SX_CLK_GPMI_IO] = imx_clk_gate2("gpmi_io", "qspi2_podf", base + 0x78, 28); + clks[IMX6SX_CLK_GPMI_APB] = imx_clk_gate2("gpmi_apb", "usdhc3", base + 0x78, 30); + + /* CCGR5 */ + clks[IMX6SX_CLK_ROM] = imx_clk_gate2("rom", "ahb", base + 0x7c, 0); + clks[IMX6SX_CLK_SDMA] = imx_clk_gate2("sdma", "ahb", base + 0x7c, 6); + clks[IMX6SX_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12); + clks[IMX6SX_CLK_AUDIO] = imx_clk_gate2_shared("audio", "audio_podf", base + 0x7c, 14, &share_count_audio); + clks[IMX6SX_CLK_SPDIF] = imx_clk_gate2_shared("spdif", "spdif_podf", base + 0x7c, 14, &share_count_audio); + clks[IMX6SX_CLK_SSI1_IPG] = imx_clk_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1); + clks[IMX6SX_CLK_SSI2_IPG] = imx_clk_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2); + clks[IMX6SX_CLK_SSI3_IPG] = imx_clk_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3); + clks[IMX6SX_CLK_SSI1] = imx_clk_gate2_shared("ssi1", "ssi1_podf", base + 0x7c, 18, &share_count_ssi1); + clks[IMX6SX_CLK_SSI2] = imx_clk_gate2_shared("ssi2", "ssi2_podf", base + 0x7c, 20, &share_count_ssi2); + clks[IMX6SX_CLK_SSI3] = imx_clk_gate2_shared("ssi3", "ssi3_podf", base + 0x7c, 22, &share_count_ssi3); + clks[IMX6SX_CLK_UART_IPG] = imx_clk_gate2("uart_ipg", "ipg", base + 0x7c, 24); + clks[IMX6SX_CLK_UART_SERIAL] = imx_clk_gate2("uart_serial", "uart_podf", base + 0x7c, 26); + clks[IMX6SX_CLK_SAI1_IPG] = imx_clk_gate2("sai1_ipg", "ipg", base + 0x7c, 28); + clks[IMX6SX_CLK_SAI2_IPG] = imx_clk_gate2("sai2_ipg", "ipg", base + 0x7c, 30); + clks[IMX6SX_CLK_SAI1] = imx_clk_gate2("sai1", "ssi1_podf", base + 0x7c, 28); + clks[IMX6SX_CLK_SAI2] = imx_clk_gate2("sai2", "ssi2_podf", base + 0x7c, 30); + + /* CCGR6 */ + clks[IMX6SX_CLK_USBOH3] = imx_clk_gate2("usboh3", "ipg", base + 0x80, 0); + clks[IMX6SX_CLK_USDHC1] = imx_clk_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2); + clks[IMX6SX_CLK_USDHC2] = imx_clk_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4); + clks[IMX6SX_CLK_USDHC3] = imx_clk_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6); + clks[IMX6SX_CLK_USDHC4] = imx_clk_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8); + clks[IMX6SX_CLK_EIM_SLOW] = imx_clk_gate2("eim_slow", "eim_slow_podf", base + 0x80, 10); + clks[IMX6SX_CLK_PWM8] = imx_clk_gate2("pwm8", "perclk", base + 0x80, 16); + clks[IMX6SX_CLK_VADC] = imx_clk_gate2("vadc", "vid_podf", base + 0x80, 20); + clks[IMX6SX_CLK_GIS] = imx_clk_gate2("gis", "display_podf", base + 0x80, 22); + clks[IMX6SX_CLK_I2C4] = imx_clk_gate2("i2c4", "perclk", base + 0x80, 24); + clks[IMX6SX_CLK_PWM5] = imx_clk_gate2("pwm5", "perclk", base + 0x80, 26); + clks[IMX6SX_CLK_PWM6] = imx_clk_gate2("pwm6", "perclk", base + 0x80, 28); + clks[IMX6SX_CLK_PWM7] = imx_clk_gate2("pwm7", "perclk", base + 0x80, 30); + + clks[IMX6SX_CLK_CKO1] = imx_clk_gate("cko1", "cko1_podf", base + 0x60, 7); + clks[IMX6SX_CLK_CKO2] = imx_clk_gate("cko2", "cko2_podf", base + 0x60, 24); + + /* mask handshake of mmdc */ + writel_relaxed(BM_CCM_CCDR_MMDC_CH0_MASK, base + CCDR); + + imx_check_clocks(clks, ARRAY_SIZE(clks)); + + clk_data.clks = clks; + clk_data.clk_num = ARRAY_SIZE(clks); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) + clk_prepare_enable(clks[clks_init_on[i]]); + + if (IS_ENABLED(CONFIG_USB_MXS_PHY)) { + clk_prepare_enable(clks[IMX6SX_CLK_USBPHY1_GATE]); + clk_prepare_enable(clks[IMX6SX_CLK_USBPHY2_GATE]); + } + + /* Set the default 132MHz for EIM module */ + clk_set_parent(clks[IMX6SX_CLK_EIM_SLOW_SEL], clks[IMX6SX_CLK_PLL2_PFD2]); + clk_set_rate(clks[IMX6SX_CLK_EIM_SLOW], 132000000); + + /* set parent clock for LCDIF1 pixel clock */ + clk_set_parent(clks[IMX6SX_CLK_LCDIF1_PRE_SEL], clks[IMX6SX_CLK_PLL5_VIDEO_DIV]); + clk_set_parent(clks[IMX6SX_CLK_LCDIF1_SEL], clks[IMX6SX_CLK_LCDIF1_PODF]); + + /* Set the parent clks of PCIe lvds1 and pcie_axi to be pcie ref, axi */ + if (clk_set_parent(clks[IMX6SX_CLK_LVDS1_SEL], clks[IMX6SX_CLK_PCIE_REF_125M])) + pr_err("Failed to set pcie bus parent clk.\n"); + if (clk_set_parent(clks[IMX6SX_CLK_PCIE_AXI_SEL], clks[IMX6SX_CLK_AXI])) + pr_err("Failed to set pcie parent clk.\n"); + + /* + * Init enet system AHB clock, set to 200MHz + * pll2_pfd2_396m-> ENET_PODF-> ENET_AHB + */ + clk_set_parent(clks[IMX6SX_CLK_ENET_PRE_SEL], clks[IMX6SX_CLK_PLL2_PFD2]); + clk_set_parent(clks[IMX6SX_CLK_ENET_SEL], clks[IMX6SX_CLK_ENET_PODF]); + clk_set_rate(clks[IMX6SX_CLK_ENET_PODF], 200000000); + clk_set_rate(clks[IMX6SX_CLK_ENET_REF], 125000000); + clk_set_rate(clks[IMX6SX_CLK_ENET2_REF], 125000000); + + /* Audio clocks */ + clk_set_rate(clks[IMX6SX_CLK_PLL4_AUDIO_DIV], 393216000); + + clk_set_parent(clks[IMX6SX_CLK_SPDIF_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); + clk_set_rate(clks[IMX6SX_CLK_SPDIF_PODF], 98304000); + + clk_set_parent(clks[IMX6SX_CLK_AUDIO_SEL], clks[IMX6SX_CLK_PLL3_USB_OTG]); + clk_set_rate(clks[IMX6SX_CLK_AUDIO_PODF], 24000000); + + clk_set_parent(clks[IMX6SX_CLK_SSI1_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); + clk_set_parent(clks[IMX6SX_CLK_SSI2_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); + clk_set_parent(clks[IMX6SX_CLK_SSI3_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); + clk_set_rate(clks[IMX6SX_CLK_SSI1_PODF], 24576000); + clk_set_rate(clks[IMX6SX_CLK_SSI2_PODF], 24576000); + clk_set_rate(clks[IMX6SX_CLK_SSI3_PODF], 24576000); + + clk_set_parent(clks[IMX6SX_CLK_ESAI_SEL], clks[IMX6SX_CLK_PLL4_AUDIO_DIV]); + clk_set_rate(clks[IMX6SX_CLK_ESAI_PODF], 24576000); + + /* Set parent clock for vadc */ + clk_set_parent(clks[IMX6SX_CLK_VID_SEL], clks[IMX6SX_CLK_PLL3_USB_OTG]); + + /* default parent of can_sel clock is invalid, manually set it here */ + clk_set_parent(clks[IMX6SX_CLK_CAN_SEL], clks[IMX6SX_CLK_PLL3_60M]); + + /* Update gpu clock from default 528M to 720M */ + clk_set_parent(clks[IMX6SX_CLK_GPU_CORE_SEL], clks[IMX6SX_CLK_PLL3_PFD0]); + clk_set_parent(clks[IMX6SX_CLK_GPU_AXI_SEL], clks[IMX6SX_CLK_PLL3_PFD0]); + + clk_set_parent(clks[IMX6SX_CLK_QSPI1_SEL], clks[IMX6SX_CLK_PLL2_BUS]); + clk_set_parent(clks[IMX6SX_CLK_QSPI2_SEL], clks[IMX6SX_CLK_PLL2_BUS]); +} +CLK_OF_DECLARE(imx6sx, "fsl,imx6sx-ccm", imx6sx_clocks_init); diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c new file mode 100644 index 000000000000..71f3a94b472c --- /dev/null +++ b/drivers/clk/imx/clk-imx7d.c @@ -0,0 +1,860 @@ +/* + * Copyright (C) 2014-2015 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <dt-bindings/clock/imx7d-clock.h> +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/types.h> + +#include "clk.h" + +static struct clk *clks[IMX7D_CLK_END]; +static const char *arm_a7_sel[] = { "osc", "pll_arm_main_clk", + "pll_enet_500m_clk", "pll_dram_main_clk", + "pll_sys_main_clk", "pll_sys_pfd0_392m_clk", "pll_audio_main_clk", + "pll_usb_main_clk", }; + +static const char *arm_m4_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_250m_clk", "pll_sys_pfd2_270m_clk", + "pll_dram_533m_clk", "pll_audio_main_clk", "pll_video_main_clk", + "pll_usb_main_clk", }; + +static const char *arm_m0_sel[] = { "osc", "pll_sys_main_120m_clk", + "pll_enet_125m_clk", "pll_sys_pfd2_135m_clk", + "pll_dram_533m_clk", "pll_audio_main_clk", "pll_video_main_clk", + "pll_usb_main_clk", }; + +static const char *axi_sel[] = { "osc", "pll_sys_pfd1_332m_clk", + "pll_dram_533m_clk", "pll_enet_250m_clk", "pll_sys_pfd5_clk", + "pll_audio_main_clk", "pll_video_main_clk", "pll_sys_pfd7_clk", }; + +static const char *disp_axi_sel[] = { "osc", "pll_sys_pfd1_332m_clk", + "pll_dram_533m_clk", "pll_enet_250m_clk", "pll_sys_pfd6_clk", + "pll_sys_pfd7_clk", "pll_audio_main_clk", "pll_video_main_clk", }; + +static const char *enet_axi_sel[] = { "osc", "pll_sys_pfd2_270m_clk", + "pll_dram_533m_clk", "pll_enet_250m_clk", + "pll_sys_main_240m_clk", "pll_audio_main_clk", "pll_video_main_clk", + "pll_sys_pfd4_clk", }; + +static const char *nand_usdhc_bus_sel[] = { "osc", "pll_sys_pfd2_270m_clk", + "pll_dram_533m_clk", "pll_sys_main_240m_clk", + "pll_sys_pfd2_135m_clk", "pll_sys_pfd6_clk", "pll_enet_250m_clk", + "pll_audio_main_clk", }; + +static const char *ahb_channel_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_dram_533m_clk", "pll_sys_pfd0_392m_clk", + "pll_enet_125m_clk", "pll_usb_main_clk", "pll_audio_main_clk", + "pll_video_main_clk", }; + +static const char *dram_phym_sel[] = { "pll_dram_main_clk", + "dram_phym_alt_clk", }; + +static const char *dram_sel[] = { "pll_dram_main_clk", + "dram_alt_clk", }; + +static const char *dram_phym_alt_sel[] = { "osc", "pll_dram_533m_clk", + "pll_sys_main_clk", "pll_enet_500m_clk", + "pll_usb_main_clk", "pll_sys_pfd7_clk", "pll_audio_main_clk", + "pll_video_main_clk", }; + +static const char *dram_alt_sel[] = { "osc", "pll_dram_533m_clk", + "pll_sys_main_clk", "pll_enet_500m_clk", + "pll_enet_250m_clk", "pll_sys_pfd0_392m_clk", + "pll_audio_main_clk", "pll_sys_pfd2_270m_clk", }; + +static const char *usb_hsic_sel[] = { "osc", "pll_sys_main_clk", + "pll_usb_main_clk", "pll_sys_pfd3_clk", "pll_sys_pfd4_clk", + "pll_sys_pfd5_clk", "pll_sys_pfd6_clk", "pll_sys_pfd7_clk", }; + +static const char *pcie_ctrl_sel[] = { "osc", "pll_enet_250m_clk", + "pll_sys_main_240m_clk", "pll_sys_pfd2_270m_clk", + "pll_dram_533m_clk", "pll_enet_500m_clk", + "pll_sys_pfd1_332m_clk", "pll_sys_pfd6_clk", }; + +static const char *pcie_phy_sel[] = { "osc", "pll_enet_100m_clk", + "pll_enet_500m_clk", "ext_clk_1", "ext_clk_2", "ext_clk_3", + "ext_clk_4", "pll_sys_pfd0_392m_clk", }; + +static const char *epdc_pixel_sel[] = { "osc", "pll_sys_pfd1_332m_clk", + "pll_dram_533m_clk", "pll_sys_main_clk", "pll_sys_pfd5_clk", + "pll_sys_pfd6_clk", "pll_sys_pfd7_clk", "pll_video_main_clk", }; + +static const char *lcdif_pixel_sel[] = { "osc", "pll_sys_pfd5_clk", + "pll_dram_533m_clk", "ext_clk_3", "pll_sys_pfd4_clk", + "pll_sys_pfd2_270m_clk", "pll_video_main_clk", + "pll_usb_main_clk", }; + +static const char *mipi_dsi_sel[] = { "osc", "pll_sys_pfd5_clk", + "pll_sys_pfd3_clk", "pll_sys_main_clk", "pll_sys_pfd0_196m_clk", + "pll_dram_533m_clk", "pll_video_main_clk", "pll_audio_main_clk", }; + +static const char *mipi_csi_sel[] = { "osc", "pll_sys_pfd4_clk", + "pll_sys_pfd3_clk", "pll_sys_main_clk", "pll_sys_pfd0_196m_clk", + "pll_dram_533m_clk", "pll_video_main_clk", "pll_audio_main_clk", }; + +static const char *mipi_dphy_sel[] = { "osc", "pll_sys_main_120m_clk", + "pll_dram_533m_clk", "pll_sys_pfd5_clk", "ref_1m_clk", "ext_clk_2", + "pll_video_main_clk", "ext_clk_3", }; + +static const char *sai1_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_audio_main_clk", "pll_dram_533m_clk", "pll_video_main_clk", + "pll_sys_pfd4_clk", "pll_enet_125m_clk", "ext_clk_2", }; + +static const char *sai2_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_audio_main_clk", "pll_dram_533m_clk", "pll_video_main_clk", + "pll_sys_pfd4_clk", "pll_enet_125m_clk", "ext_clk_2", }; + +static const char *sai3_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_audio_main_clk", "pll_dram_533m_clk", "pll_video_main_clk", + "pll_sys_pfd4_clk", "pll_enet_125m_clk", "ext_clk_3", }; + +static const char *spdif_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_audio_main_clk", "pll_dram_533m_clk", "pll_video_main_clk", + "pll_sys_pfd4_clk", "pll_enet_125m_clk", "ext_3_clk", }; + +static const char *enet1_ref_sel[] = { "osc", "pll_enet_125m_clk", + "pll_enet_50m_clk", "pll_enet_25m_clk", + "pll_sys_main_120m_clk", "pll_audio_main_clk", "pll_video_main_clk", + "ext_clk_4", }; + +static const char *enet1_time_sel[] = { "osc", "pll_enet_100m_clk", + "pll_audio_main_clk", "ext_clk_1", "ext_clk_2", "ext_clk_3", + "ext_clk_4", "pll_video_main_clk", }; + +static const char *enet2_ref_sel[] = { "osc", "pll_enet_125m_clk", + "pll_enet_50m_clk", "pll_enet_25m_clk", + "pll_sys_main_120m_clk", "pll_audio_main_clk", "pll_video_main_clk", + "ext_clk_4", }; + +static const char *enet2_time_sel[] = { "osc", "pll_enet_100m_clk", + "pll_audio_main_clk", "ext_clk_1", "ext_clk_2", "ext_clk_3", + "ext_clk_4", "pll_video_main_clk", }; + +static const char *enet_phy_ref_sel[] = { "osc", "pll_enet_25m_clk", + "pll_enet_50m_clk", "pll_enet_125m_clk", + "pll_dram_533m_clk", "pll_audio_main_clk", "pll_video_main_clk", + "pll_sys_pfd3_clk", }; + +static const char *eim_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_sys_main_120m_clk", "pll_dram_533m_clk", + "pll_sys_pfd2_270m_clk", "pll_sys_pfd3_clk", "pll_enet_125m_clk", + "pll_usb_main_clk", }; + +static const char *nand_sel[] = { "osc", "pll_sys_main_clk", + "pll_dram_533m_clk", "pll_sys_pfd0_392m_clk", "pll_sys_pfd3_clk", + "pll_enet_500m_clk", "pll_enet_250m_clk", + "pll_video_main_clk", }; + +static const char *qspi_sel[] = { "osc", "pll_sys_pfd4_clk", + "pll_dram_533m_clk", "pll_enet_500m_clk", "pll_sys_pfd3_clk", + "pll_sys_pfd2_270m_clk", "pll_sys_pfd6_clk", "pll_sys_pfd7_clk", }; + +static const char *usdhc1_sel[] = { "osc", "pll_sys_pfd0_392m_clk", + "pll_dram_533m_clk", "pll_enet_500m_clk", "pll_sys_pfd4_clk", + "pll_sys_pfd2_270m_clk", "pll_sys_pfd6_clk", "pll_sys_pfd7_clk", }; + +static const char *usdhc2_sel[] = { "osc", "pll_sys_pfd0_392m_clk", + "pll_dram_533m_clk", "pll_enet_500m_clk", "pll_sys_pfd4_clk", + "pll_sys_pfd2_270m_clk", "pll_sys_pfd6_clk", "pll_sys_pfd7_clk", }; + +static const char *usdhc3_sel[] = { "osc", "pll_sys_pfd0_392m_clk", + "pll_dram_533m_clk", "pll_enet_500m_clk", "pll_sys_pfd4_clk", + "pll_sys_pfd2_270m_clk", "pll_sys_pfd6_clk", "pll_sys_pfd7_clk", }; + +static const char *can1_sel[] = { "osc", "pll_sys_main_120m_clk", + "pll_dram_533m_clk", "pll_sys_main_clk", + "pll_enet_40m_clk", "pll_usb_main_clk", "ext_clk_1", + "ext_clk_4", }; + +static const char *can2_sel[] = { "osc", "pll_sys_main_120m_clk", + "pll_dram_533m_clk", "pll_sys_main_clk", + "pll_enet_40m_clk", "pll_usb_main_clk", "ext_clk_1", + "ext_clk_3", }; + +static const char *i2c1_sel[] = { "osc", "pll_sys_main_120m_clk", + "pll_enet_50m_clk", "pll_dram_533m_clk", + "pll_audio_main_clk", "pll_video_main_clk", "pll_usb_main_clk", + "pll_sys_pfd2_135m_clk", }; + +static const char *i2c2_sel[] = { "osc", "pll_sys_main_120m_clk", + "pll_enet_50m_clk", "pll_dram_533m_clk", + "pll_audio_main_clk", "pll_video_main_clk", "pll_usb_main_clk", + "pll_sys_pfd2_135m_clk", }; + +static const char *i2c3_sel[] = { "osc", "pll_sys_main_120m_clk", + "pll_enet_50m_clk", "pll_dram_533m_clk", + "pll_audio_main_clk", "pll_video_main_clk", "pll_usb_main_clk", + "pll_sys_pfd2_135m_clk", }; + +static const char *i2c4_sel[] = { "osc", "pll_sys_main_120m_clk", + "pll_enet_50m_clk", "pll_dram_533m_clk", + "pll_audio_main_clk", "pll_video_main_clk", "pll_usb_main_clk", + "pll_sys_pfd2_135m_clk", }; + +static const char *uart1_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_enet_100m_clk", + "pll_sys_main_clk", "ext_clk_2", "ext_clk_4", + "pll_usb_main_clk", }; + +static const char *uart2_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_enet_100m_clk", + "pll_sys_main_clk", "ext_clk_2", "ext_clk_3", + "pll_usb_main_clk", }; + +static const char *uart3_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_enet_100m_clk", + "pll_sys_main_clk", "ext_clk_2", "ext_clk_4", + "pll_usb_main_clk", }; + +static const char *uart4_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_enet_100m_clk", + "pll_sys_main_clk", "ext_clk_2", "ext_clk_3", + "pll_usb_main_clk", }; + +static const char *uart5_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_enet_100m_clk", + "pll_sys_main_clk", "ext_clk_2", "ext_clk_4", + "pll_usb_main_clk", }; + +static const char *uart6_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_enet_100m_clk", + "pll_sys_main_clk", "ext_clk_2", "ext_clk_3", + "pll_usb_main_clk", }; + +static const char *uart7_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_enet_100m_clk", + "pll_sys_main_clk", "ext_clk_2", "ext_clk_4", + "pll_usb_main_clk", }; + +static const char *ecspi1_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_sys_main_120m_clk", + "pll_sys_main_clk", "pll_sys_pfd4_clk", "pll_enet_250m_clk", + "pll_usb_main_clk", }; + +static const char *ecspi2_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_sys_main_120m_clk", + "pll_sys_main_clk", "pll_sys_pfd4_clk", "pll_enet_250m_clk", + "pll_usb_main_clk", }; + +static const char *ecspi3_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_sys_main_120m_clk", + "pll_sys_main_clk", "pll_sys_pfd4_clk", "pll_enet_250m_clk", + "pll_usb_main_clk", }; + +static const char *ecspi4_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_enet_40m_clk", "pll_sys_main_120m_clk", + "pll_sys_main_clk", "pll_sys_pfd4_clk", "pll_enet_250m_clk", + "pll_usb_main_clk", }; + +static const char *pwm1_sel[] = { "osc", "pll_enet_100m_clk", + "pll_sys_main_120m_clk", "pll_enet_40m_clk", "pll_audio_main_clk", + "ext_clk_1", "ref_1m_clk", "pll_video_main_clk", }; + +static const char *pwm2_sel[] = { "osc", "pll_enet_100m_clk", + "pll_sys_main_120m_clk", "pll_enet_40m_clk", "pll_audio_main_clk", + "ext_clk_1", "ref_1m_clk", "pll_video_main_clk", }; + +static const char *pwm3_sel[] = { "osc", "pll_enet_100m_clk", + "pll_sys_main_120m_clk", "pll_enet_40m_clk", "pll_audio_main_clk", + "ext_clk_2", "ref_1m_clk", "pll_video_main_clk", }; + +static const char *pwm4_sel[] = { "osc", "pll_enet_100m_clk", + "pll_sys_main_120m_clk", "pll_enet_40m_clk", "pll_audio_main_clk", + "ext_clk_2", "ref_1m_clk", "pll_video_main_clk", }; + +static const char *flextimer1_sel[] = { "osc", "pll_enet_100m_clk", + "pll_sys_main_120m_clk", "pll_enet_40m_clk", "pll_audio_main_clk", + "ext_clk_3", "ref_1m_clk", "pll_video_main_clk", }; + +static const char *flextimer2_sel[] = { "osc", "pll_enet_100m_clk", + "pll_sys_main_120m_clk", "pll_enet_40m_clk", "pll_audio_main_clk", + "ext_clk_3", "ref_1m_clk", "pll_video_main_clk", }; + +static const char *sim1_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_sys_main_120m_clk", "pll_dram_533m_clk", + "pll_usb_main_clk", "pll_audio_main_clk", "pll_enet_125m_clk", + "pll_sys_pfd7_clk", }; + +static const char *sim2_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_sys_main_120m_clk", "pll_dram_533m_clk", + "pll_usb_main_clk", "pll_video_main_clk", "pll_enet_125m_clk", + "pll_sys_pfd7_clk", }; + +static const char *gpt1_sel[] = { "osc", "pll_enet_100m_clk", + "pll_sys_pfd0_392m_clk", "pll_enet_40m_clk", "pll_video_main_clk", + "ref_1m_clk", "pll_audio_main_clk", "ext_clk_1", }; + +static const char *gpt2_sel[] = { "osc", "pll_enet_100m_clk", + "pll_sys_pfd0_392m_clk", "pll_enet_40m_clk", "pll_video_main_clk", + "ref_1m_clk", "pll_audio_main_clk", "ext_clk_2", }; + +static const char *gpt3_sel[] = { "osc", "pll_enet_100m_clk", + "pll_sys_pfd0_392m_clk", "pll_enet_40m_clk", "pll_video_main_clk", + "ref_1m_clk", "pll_audio_main_clk", "ext_clk_3", }; + +static const char *gpt4_sel[] = { "osc", "pll_enet_100m_clk", + "pll_sys_pfd0_392m_clk", "pll_enet_40m_clk", "pll_video_main_clk", + "ref_1m_clk", "pll_audio_main_clk", "ext_clk_4", }; + +static const char *trace_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_sys_main_120m_clk", "pll_dram_533m_clk", + "pll_enet_125m_clk", "pll_usb_main_clk", "ext_clk_2", + "ext_clk_3", }; + +static const char *wdog_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_sys_main_120m_clk", "pll_dram_533m_clk", + "pll_enet_125m_clk", "pll_usb_main_clk", "ref_1m_clk", + "pll_sys_pfd1_166m_clk", }; + +static const char *csi_mclk_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_sys_main_120m_clk", "pll_dram_533m_clk", + "pll_enet_125m_clk", "pll_audio_main_clk", "pll_video_main_clk", + "pll_usb_main_clk", }; + +static const char *audio_mclk_sel[] = { "osc", "pll_sys_pfd2_135m_clk", + "pll_sys_main_120m_clk", "pll_dram_533m_clk", + "pll_enet_125m_clk", "pll_audio_main_clk", "pll_video_main_clk", + "pll_usb_main_clk", }; + +static const char *wrclk_sel[] = { "osc", "pll_enet_40m_clk", + "pll_dram_533m_clk", "pll_usb_main_clk", + "pll_sys_main_240m_clk", "pll_sys_pfd2_270m_clk", + "pll_enet_500m_clk", "pll_sys_pfd7_clk", }; + +static const char *clko1_sel[] = { "osc", "pll_sys_main_clk", + "pll_sys_main_240m_clk", "pll_sys_pfd0_196m_clk", "pll_sys_pfd3_clk", + "pll_enet_500m_clk", "pll_dram_533m_clk", "ref_1m_clk", }; + +static const char *clko2_sel[] = { "osc", "pll_sys_main_240m_clk", + "pll_sys_pfd0_392m_clk", "pll_sys_pfd1_166m_clk", "pll_sys_pfd4_clk", + "pll_audio_main_clk", "pll_video_main_clk", "osc_32k_clk", }; + +static const char *lvds1_sel[] = { "pll_arm_main_clk", + "pll_sys_main_clk", "pll_sys_pfd0_392m_clk", "pll_sys_pfd1_332m_clk", + "pll_sys_pfd2_270m_clk", "pll_sys_pfd3_clk", "pll_sys_pfd4_clk", + "pll_sys_pfd5_clk", "pll_sys_pfd6_clk", "pll_sys_pfd7_clk", + "pll_audio_main_clk", "pll_video_main_clk", "pll_enet_500m_clk", + "pll_enet_250m_clk", "pll_enet_125m_clk", "pll_enet_100m_clk", + "pll_enet_50m_clk", "pll_enet_40m_clk", "pll_enet_25m_clk", + "pll_dram_main_clk", }; + +static const char *pll_bypass_src_sel[] = { "osc", "dummy", }; +static const char *pll_arm_bypass_sel[] = { "pll_arm_main", "pll_arm_main_src", }; +static const char *pll_dram_bypass_sel[] = { "pll_dram_main", "pll_dram_main_src", }; +static const char *pll_sys_bypass_sel[] = { "pll_sys_main", "pll_sys_main_src", }; +static const char *pll_enet_bypass_sel[] = { "pll_enet_main", "pll_enet_main_src", }; +static const char *pll_audio_bypass_sel[] = { "pll_audio_main", "pll_audio_main_src", }; +static const char *pll_video_bypass_sel[] = { "pll_video_main", "pll_video_main_src", }; + +static struct clk_onecell_data clk_data; + +static void __init imx7d_clocks_init(struct device_node *ccm_node) +{ + struct device_node *np; + void __iomem *base; + int i; + + clks[IMX7D_CLK_DUMMY] = imx_clk_fixed("dummy", 0); + clks[IMX7D_OSC_24M_CLK] = of_clk_get_by_name(ccm_node, "osc"); + + np = of_find_compatible_node(NULL, NULL, "fsl,imx7d-anatop"); + base = of_iomap(np, 0); + WARN_ON(!base); + + clks[IMX7D_PLL_ARM_MAIN_SRC] = imx_clk_mux("pll_arm_main_src", base + 0x60, 14, 2, pll_bypass_src_sel, ARRAY_SIZE(pll_bypass_src_sel)); + clks[IMX7D_PLL_DRAM_MAIN_SRC] = imx_clk_mux("pll_dram_main_src", base + 0x70, 14, 2, pll_bypass_src_sel, ARRAY_SIZE(pll_bypass_src_sel)); + clks[IMX7D_PLL_SYS_MAIN_SRC] = imx_clk_mux("pll_sys_main_src", base + 0xb0, 14, 2, pll_bypass_src_sel, ARRAY_SIZE(pll_bypass_src_sel)); + clks[IMX7D_PLL_ENET_MAIN_SRC] = imx_clk_mux("pll_enet_main_src", base + 0xe0, 14, 2, pll_bypass_src_sel, ARRAY_SIZE(pll_bypass_src_sel)); + clks[IMX7D_PLL_AUDIO_MAIN_SRC] = imx_clk_mux("pll_audio_main_src", base + 0xf0, 14, 2, pll_bypass_src_sel, ARRAY_SIZE(pll_bypass_src_sel)); + clks[IMX7D_PLL_VIDEO_MAIN_SRC] = imx_clk_mux("pll_video_main_src", base + 0x130, 14, 2, pll_bypass_src_sel, ARRAY_SIZE(pll_bypass_src_sel)); + + clks[IMX7D_PLL_ARM_MAIN] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll_arm_main", "pll_arm_main_src", base + 0x60, 0x7f); + clks[IMX7D_PLL_DRAM_MAIN] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll_dram_main", "pll_dram_main_src", base + 0x70, 0x7f); + clks[IMX7D_PLL_SYS_MAIN] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll_sys_main", "pll_sys_main_src", base + 0xb0, 0x1); + clks[IMX7D_PLL_ENET_MAIN] = imx_clk_pllv3(IMX_PLLV3_ENET_IMX7, "pll_enet_main", "pll_enet_main_src", base + 0xe0, 0x0); + clks[IMX7D_PLL_AUDIO_MAIN] = imx_clk_pllv3(IMX_PLLV3_AV, "pll_audio_main", "pll_audio_main_src", base + 0xf0, 0x7f); + clks[IMX7D_PLL_VIDEO_MAIN] = imx_clk_pllv3(IMX_PLLV3_AV, "pll_video_main", "pll_video_main_src", base + 0x130, 0x7f); + + clks[IMX7D_PLL_ARM_MAIN_BYPASS] = imx_clk_mux_flags("pll_arm_main_bypass", base + 0x60, 16, 1, pll_arm_bypass_sel, ARRAY_SIZE(pll_arm_bypass_sel), CLK_SET_RATE_PARENT); + clks[IMX7D_PLL_DRAM_MAIN_BYPASS] = imx_clk_mux_flags("pll_dram_main_bypass", base + 0x70, 16, 1, pll_dram_bypass_sel, ARRAY_SIZE(pll_dram_bypass_sel), CLK_SET_RATE_PARENT); + clks[IMX7D_PLL_SYS_MAIN_BYPASS] = imx_clk_mux_flags("pll_sys_main_bypass", base + 0xb0, 16, 1, pll_sys_bypass_sel, ARRAY_SIZE(pll_sys_bypass_sel), CLK_SET_RATE_PARENT); + clks[IMX7D_PLL_ENET_MAIN_BYPASS] = imx_clk_mux_flags("pll_enet_main_bypass", base + 0xe0, 16, 1, pll_enet_bypass_sel, ARRAY_SIZE(pll_enet_bypass_sel), CLK_SET_RATE_PARENT); + clks[IMX7D_PLL_AUDIO_MAIN_BYPASS] = imx_clk_mux_flags("pll_audio_main_bypass", base + 0xf0, 16, 1, pll_audio_bypass_sel, ARRAY_SIZE(pll_audio_bypass_sel), CLK_SET_RATE_PARENT); + clks[IMX7D_PLL_VIDEO_MAIN_BYPASS] = imx_clk_mux_flags("pll_video_main_bypass", base + 0x130, 16, 1, pll_video_bypass_sel, ARRAY_SIZE(pll_video_bypass_sel), CLK_SET_RATE_PARENT); + + clk_set_parent(clks[IMX7D_PLL_ARM_MAIN_BYPASS], clks[IMX7D_PLL_ARM_MAIN]); + clk_set_parent(clks[IMX7D_PLL_DRAM_MAIN_BYPASS], clks[IMX7D_PLL_DRAM_MAIN]); + clk_set_parent(clks[IMX7D_PLL_SYS_MAIN_BYPASS], clks[IMX7D_PLL_SYS_MAIN]); + clk_set_parent(clks[IMX7D_PLL_ENET_MAIN_BYPASS], clks[IMX7D_PLL_ENET_MAIN]); + clk_set_parent(clks[IMX7D_PLL_AUDIO_MAIN_BYPASS], clks[IMX7D_PLL_AUDIO_MAIN]); + clk_set_parent(clks[IMX7D_PLL_VIDEO_MAIN_BYPASS], clks[IMX7D_PLL_VIDEO_MAIN]); + + clks[IMX7D_PLL_ARM_MAIN_CLK] = imx_clk_gate("pll_arm_main_clk", "pll_arm_main_bypass", base + 0x60, 13); + clks[IMX7D_PLL_DRAM_MAIN_CLK] = imx_clk_gate("pll_dram_main_clk", "pll_dram_main_bypass", base + 0x70, 13); + clks[IMX7D_PLL_SYS_MAIN_CLK] = imx_clk_gate("pll_sys_main_clk", "pll_sys_main_bypass", base + 0xb0, 13); + clks[IMX7D_PLL_AUDIO_MAIN_CLK] = imx_clk_gate("pll_audio_main_clk", "pll_audio_main_bypass", base + 0xf0, 13); + clks[IMX7D_PLL_VIDEO_MAIN_CLK] = imx_clk_gate("pll_video_main_clk", "pll_video_main_bypass", base + 0x130, 13); + + clks[IMX7D_PLL_SYS_PFD0_392M_CLK] = imx_clk_pfd("pll_sys_pfd0_392m_clk", "pll_sys_main_clk", base + 0xc0, 0); + clks[IMX7D_PLL_SYS_PFD1_332M_CLK] = imx_clk_pfd("pll_sys_pfd1_332m_clk", "pll_sys_main_clk", base + 0xc0, 1); + clks[IMX7D_PLL_SYS_PFD2_270M_CLK] = imx_clk_pfd("pll_sys_pfd2_270m_clk", "pll_sys_main_clk", base + 0xc0, 2); + + clks[IMX7D_PLL_SYS_PFD3_CLK] = imx_clk_pfd("pll_sys_pfd3_clk", "pll_sys_main_clk", base + 0xc0, 3); + clks[IMX7D_PLL_SYS_PFD4_CLK] = imx_clk_pfd("pll_sys_pfd4_clk", "pll_sys_main_clk", base + 0xd0, 0); + clks[IMX7D_PLL_SYS_PFD5_CLK] = imx_clk_pfd("pll_sys_pfd5_clk", "pll_sys_main_clk", base + 0xd0, 1); + clks[IMX7D_PLL_SYS_PFD6_CLK] = imx_clk_pfd("pll_sys_pfd6_clk", "pll_sys_main_clk", base + 0xd0, 2); + clks[IMX7D_PLL_SYS_PFD7_CLK] = imx_clk_pfd("pll_sys_pfd7_clk", "pll_sys_main_clk", base + 0xd0, 3); + + clks[IMX7D_PLL_SYS_MAIN_480M] = imx_clk_fixed_factor("pll_sys_main_480m", "pll_sys_main_clk", 1, 1); + clks[IMX7D_PLL_SYS_MAIN_240M] = imx_clk_fixed_factor("pll_sys_main_240m", "pll_sys_main_clk", 1, 2); + clks[IMX7D_PLL_SYS_MAIN_120M] = imx_clk_fixed_factor("pll_sys_main_120m", "pll_sys_main_clk", 1, 4); + clks[IMX7D_PLL_DRAM_MAIN_533M] = imx_clk_fixed_factor("pll_dram_533m", "pll_dram_main_clk", 1, 2); + + clks[IMX7D_PLL_SYS_MAIN_480M_CLK] = imx_clk_gate_dis("pll_sys_main_480m_clk", "pll_sys_main_480m", base + 0xb0, 4); + clks[IMX7D_PLL_SYS_MAIN_240M_CLK] = imx_clk_gate_dis("pll_sys_main_240m_clk", "pll_sys_main_240m", base + 0xb0, 5); + clks[IMX7D_PLL_SYS_MAIN_120M_CLK] = imx_clk_gate_dis("pll_sys_main_120m_clk", "pll_sys_main_120m", base + 0xb0, 6); + clks[IMX7D_PLL_DRAM_MAIN_533M_CLK] = imx_clk_gate("pll_dram_533m_clk", "pll_dram_533m", base + 0x70, 12); + + clks[IMX7D_PLL_SYS_PFD0_196M] = imx_clk_fixed_factor("pll_sys_pfd0_196m", "pll_sys_pfd0_392m_clk", 1, 2); + clks[IMX7D_PLL_SYS_PFD1_166M] = imx_clk_fixed_factor("pll_sys_pfd1_166m", "pll_sys_pfd1_332m_clk", 1, 2); + clks[IMX7D_PLL_SYS_PFD2_135M] = imx_clk_fixed_factor("pll_sys_pfd2_135m", "pll_sys_pfd2_270m_clk", 1, 2); + + clks[IMX7D_PLL_SYS_PFD0_196M_CLK] = imx_clk_gate_dis("pll_sys_pfd0_196m_clk", "pll_sys_pfd0_196m", base + 0xb0, 26); + clks[IMX7D_PLL_SYS_PFD1_166M_CLK] = imx_clk_gate_dis("pll_sys_pfd1_166m_clk", "pll_sys_pfd1_166m", base + 0xb0, 27); + clks[IMX7D_PLL_SYS_PFD2_135M_CLK] = imx_clk_gate_dis("pll_sys_pfd2_135m_clk", "pll_sys_pfd2_135m", base + 0xb0, 28); + + clks[IMX7D_PLL_ENET_MAIN_CLK] = imx_clk_fixed_factor("pll_enet_main_clk", "pll_enet_main_bypass", 1, 1); + clks[IMX7D_PLL_ENET_MAIN_500M] = imx_clk_fixed_factor("pll_enet_500m", "pll_enet_main_clk", 1, 2); + clks[IMX7D_PLL_ENET_MAIN_250M] = imx_clk_fixed_factor("pll_enet_250m", "pll_enet_main_clk", 1, 4); + clks[IMX7D_PLL_ENET_MAIN_125M] = imx_clk_fixed_factor("pll_enet_125m", "pll_enet_main_clk", 1, 8); + clks[IMX7D_PLL_ENET_MAIN_100M] = imx_clk_fixed_factor("pll_enet_100m", "pll_enet_main_clk", 1, 10); + clks[IMX7D_PLL_ENET_MAIN_50M] = imx_clk_fixed_factor("pll_enet_50m", "pll_enet_main_clk", 1, 20); + clks[IMX7D_PLL_ENET_MAIN_40M] = imx_clk_fixed_factor("pll_enet_40m", "pll_enet_main_clk", 1, 25); + clks[IMX7D_PLL_ENET_MAIN_25M] = imx_clk_fixed_factor("pll_enet_25m", "pll_enet_main_clk", 1, 40); + + clks[IMX7D_PLL_ENET_MAIN_500M_CLK] = imx_clk_gate("pll_enet_500m_clk", "pll_enet_500m", base + 0xe0, 12); + clks[IMX7D_PLL_ENET_MAIN_250M_CLK] = imx_clk_gate("pll_enet_250m_clk", "pll_enet_250m", base + 0xe0, 11); + clks[IMX7D_PLL_ENET_MAIN_125M_CLK] = imx_clk_gate("pll_enet_125m_clk", "pll_enet_125m", base + 0xe0, 10); + clks[IMX7D_PLL_ENET_MAIN_100M_CLK] = imx_clk_gate("pll_enet_100m_clk", "pll_enet_100m", base + 0xe0, 9); + clks[IMX7D_PLL_ENET_MAIN_50M_CLK] = imx_clk_gate("pll_enet_50m_clk", "pll_enet_50m", base + 0xe0, 8); + clks[IMX7D_PLL_ENET_MAIN_40M_CLK] = imx_clk_gate("pll_enet_40m_clk", "pll_enet_40m", base + 0xe0, 7); + clks[IMX7D_PLL_ENET_MAIN_25M_CLK] = imx_clk_gate("pll_enet_25m_clk", "pll_enet_25m", base + 0xe0, 6); + + clks[IMX7D_LVDS1_OUT_SEL] = imx_clk_mux("lvds1_sel", base + 0x170, 0, 5, lvds1_sel, ARRAY_SIZE(lvds1_sel)); + clks[IMX7D_LVDS1_OUT_CLK] = imx_clk_gate_exclusive("lvds1_out", "lvds1_sel", base + 0x170, 5, BIT(6)); + + np = ccm_node; + base = of_iomap(np, 0); + WARN_ON(!base); + + clks[IMX7D_ARM_A7_ROOT_SRC] = imx_clk_mux("arm_a7_src", base + 0x8000, 24, 3, arm_a7_sel, ARRAY_SIZE(arm_a7_sel)); + clks[IMX7D_ARM_M4_ROOT_SRC] = imx_clk_mux("arm_m4_src", base + 0x8080, 24, 3, arm_m4_sel, ARRAY_SIZE(arm_m4_sel)); + clks[IMX7D_ARM_M0_ROOT_SRC] = imx_clk_mux("arm_m0_src", base + 0x8100, 24, 3, arm_m0_sel, ARRAY_SIZE(arm_m0_sel)); + clks[IMX7D_MAIN_AXI_ROOT_SRC] = imx_clk_mux("axi_src", base + 0x8800, 24, 3, axi_sel, ARRAY_SIZE(axi_sel)); + clks[IMX7D_DISP_AXI_ROOT_SRC] = imx_clk_mux("disp_axi_src", base + 0x8880, 24, 3, disp_axi_sel, ARRAY_SIZE(disp_axi_sel)); + clks[IMX7D_ENET_AXI_ROOT_SRC] = imx_clk_mux("enet_axi_src", base + 0x8900, 24, 3, enet_axi_sel, ARRAY_SIZE(enet_axi_sel)); + clks[IMX7D_NAND_USDHC_BUS_ROOT_SRC] = imx_clk_mux("nand_usdhc_src", base + 0x8980, 24, 3, nand_usdhc_bus_sel, ARRAY_SIZE(nand_usdhc_bus_sel)); + clks[IMX7D_AHB_CHANNEL_ROOT_SRC] = imx_clk_mux("ahb_src", base + 0x9000, 24, 3, ahb_channel_sel, ARRAY_SIZE(ahb_channel_sel)); + clks[IMX7D_DRAM_PHYM_ROOT_SRC] = imx_clk_mux("dram_phym_src", base + 0x9800, 24, 1, dram_phym_sel, ARRAY_SIZE(dram_phym_sel)); + clks[IMX7D_DRAM_ROOT_SRC] = imx_clk_mux("dram_src", base + 0x9880, 24, 1, dram_sel, ARRAY_SIZE(dram_sel)); + clks[IMX7D_DRAM_PHYM_ALT_ROOT_SRC] = imx_clk_mux("dram_phym_alt_src", base + 0xa000, 24, 3, dram_phym_alt_sel, ARRAY_SIZE(dram_phym_alt_sel)); + clks[IMX7D_DRAM_ALT_ROOT_SRC] = imx_clk_mux("dram_alt_src", base + 0xa080, 24, 3, dram_alt_sel, ARRAY_SIZE(dram_alt_sel)); + clks[IMX7D_USB_HSIC_ROOT_SRC] = imx_clk_mux("usb_hsic_src", base + 0xa100, 24, 3, usb_hsic_sel, ARRAY_SIZE(usb_hsic_sel)); + clks[IMX7D_PCIE_CTRL_ROOT_SRC] = imx_clk_mux("pcie_ctrl_src", base + 0xa180, 24, 3, pcie_ctrl_sel, ARRAY_SIZE(pcie_ctrl_sel)); + clks[IMX7D_PCIE_PHY_ROOT_SRC] = imx_clk_mux("pcie_phy_src", base + 0xa200, 24, 3, pcie_phy_sel, ARRAY_SIZE(pcie_phy_sel)); + clks[IMX7D_EPDC_PIXEL_ROOT_SRC] = imx_clk_mux("epdc_pixel_src", base + 0xa280, 24, 3, epdc_pixel_sel, ARRAY_SIZE(epdc_pixel_sel)); + clks[IMX7D_LCDIF_PIXEL_ROOT_SRC] = imx_clk_mux("lcdif_pixel_src", base + 0xa300, 24, 3, lcdif_pixel_sel, ARRAY_SIZE(lcdif_pixel_sel)); + clks[IMX7D_MIPI_DSI_ROOT_SRC] = imx_clk_mux("mipi_dsi_src", base + 0xa380, 24, 3, mipi_dsi_sel, ARRAY_SIZE(mipi_dsi_sel)); + clks[IMX7D_MIPI_CSI_ROOT_SRC] = imx_clk_mux("mipi_csi_src", base + 0xa400, 24, 3, mipi_csi_sel, ARRAY_SIZE(mipi_csi_sel)); + clks[IMX7D_MIPI_DPHY_ROOT_SRC] = imx_clk_mux("mipi_dphy_src", base + 0xa480, 24, 3, mipi_dphy_sel, ARRAY_SIZE(mipi_dphy_sel)); + clks[IMX7D_SAI1_ROOT_SRC] = imx_clk_mux("sai1_src", base + 0xa500, 24, 3, sai1_sel, ARRAY_SIZE(sai1_sel)); + clks[IMX7D_SAI2_ROOT_SRC] = imx_clk_mux("sai2_src", base + 0xa580, 24, 3, sai2_sel, ARRAY_SIZE(sai2_sel)); + clks[IMX7D_SAI3_ROOT_SRC] = imx_clk_mux("sai3_src", base + 0xa600, 24, 3, sai3_sel, ARRAY_SIZE(sai3_sel)); + clks[IMX7D_SPDIF_ROOT_SRC] = imx_clk_mux("spdif_src", base + 0xa680, 24, 3, spdif_sel, ARRAY_SIZE(spdif_sel)); + clks[IMX7D_ENET1_REF_ROOT_SRC] = imx_clk_mux("enet1_ref_src", base + 0xa700, 24, 3, enet1_ref_sel, ARRAY_SIZE(enet1_ref_sel)); + clks[IMX7D_ENET1_TIME_ROOT_SRC] = imx_clk_mux("enet1_time_src", base + 0xa780, 24, 3, enet1_time_sel, ARRAY_SIZE(enet1_time_sel)); + clks[IMX7D_ENET2_REF_ROOT_SRC] = imx_clk_mux("enet2_ref_src", base + 0xa800, 24, 3, enet2_ref_sel, ARRAY_SIZE(enet2_ref_sel)); + clks[IMX7D_ENET2_TIME_ROOT_SRC] = imx_clk_mux("enet2_time_src", base + 0xa880, 24, 3, enet2_time_sel, ARRAY_SIZE(enet2_time_sel)); + clks[IMX7D_ENET_PHY_REF_ROOT_SRC] = imx_clk_mux("enet_phy_ref_src", base + 0xa900, 24, 3, enet_phy_ref_sel, ARRAY_SIZE(enet_phy_ref_sel)); + clks[IMX7D_EIM_ROOT_SRC] = imx_clk_mux("eim_src", base + 0xa980, 24, 3, eim_sel, ARRAY_SIZE(eim_sel)); + clks[IMX7D_NAND_ROOT_SRC] = imx_clk_mux("nand_src", base + 0xaa00, 24, 3, nand_sel, ARRAY_SIZE(nand_sel)); + clks[IMX7D_QSPI_ROOT_SRC] = imx_clk_mux("qspi_src", base + 0xaa80, 24, 3, qspi_sel, ARRAY_SIZE(qspi_sel)); + clks[IMX7D_USDHC1_ROOT_SRC] = imx_clk_mux("usdhc1_src", base + 0xab00, 24, 3, usdhc1_sel, ARRAY_SIZE(usdhc1_sel)); + clks[IMX7D_USDHC2_ROOT_SRC] = imx_clk_mux("usdhc2_src", base + 0xab80, 24, 3, usdhc2_sel, ARRAY_SIZE(usdhc2_sel)); + clks[IMX7D_USDHC3_ROOT_SRC] = imx_clk_mux("usdhc3_src", base + 0xac00, 24, 3, usdhc3_sel, ARRAY_SIZE(usdhc3_sel)); + clks[IMX7D_CAN1_ROOT_SRC] = imx_clk_mux("can1_src", base + 0xac80, 24, 3, can1_sel, ARRAY_SIZE(can1_sel)); + clks[IMX7D_CAN2_ROOT_SRC] = imx_clk_mux("can2_src", base + 0xad00, 24, 3, can2_sel, ARRAY_SIZE(can2_sel)); + clks[IMX7D_I2C1_ROOT_SRC] = imx_clk_mux("i2c1_src", base + 0xad80, 24, 3, i2c1_sel, ARRAY_SIZE(i2c1_sel)); + clks[IMX7D_I2C2_ROOT_SRC] = imx_clk_mux("i2c2_src", base + 0xae00, 24, 3, i2c2_sel, ARRAY_SIZE(i2c2_sel)); + clks[IMX7D_I2C3_ROOT_SRC] = imx_clk_mux("i2c3_src", base + 0xae80, 24, 3, i2c3_sel, ARRAY_SIZE(i2c3_sel)); + clks[IMX7D_I2C4_ROOT_SRC] = imx_clk_mux("i2c4_src", base + 0xaf00, 24, 3, i2c4_sel, ARRAY_SIZE(i2c4_sel)); + clks[IMX7D_UART1_ROOT_SRC] = imx_clk_mux("uart1_src", base + 0xaf80, 24, 3, uart1_sel, ARRAY_SIZE(uart1_sel)); + clks[IMX7D_UART2_ROOT_SRC] = imx_clk_mux("uart2_src", base + 0xb000, 24, 3, uart2_sel, ARRAY_SIZE(uart2_sel)); + clks[IMX7D_UART3_ROOT_SRC] = imx_clk_mux("uart3_src", base + 0xb080, 24, 3, uart3_sel, ARRAY_SIZE(uart3_sel)); + clks[IMX7D_UART4_ROOT_SRC] = imx_clk_mux("uart4_src", base + 0xb100, 24, 3, uart4_sel, ARRAY_SIZE(uart4_sel)); + clks[IMX7D_UART5_ROOT_SRC] = imx_clk_mux("uart5_src", base + 0xb180, 24, 3, uart5_sel, ARRAY_SIZE(uart5_sel)); + clks[IMX7D_UART6_ROOT_SRC] = imx_clk_mux("uart6_src", base + 0xb200, 24, 3, uart6_sel, ARRAY_SIZE(uart6_sel)); + clks[IMX7D_UART7_ROOT_SRC] = imx_clk_mux("uart7_src", base + 0xb280, 24, 3, uart7_sel, ARRAY_SIZE(uart7_sel)); + clks[IMX7D_ECSPI1_ROOT_SRC] = imx_clk_mux("ecspi1_src", base + 0xb300, 24, 3, ecspi1_sel, ARRAY_SIZE(ecspi1_sel)); + clks[IMX7D_ECSPI2_ROOT_SRC] = imx_clk_mux("ecspi2_src", base + 0xb380, 24, 3, ecspi2_sel, ARRAY_SIZE(ecspi2_sel)); + clks[IMX7D_ECSPI3_ROOT_SRC] = imx_clk_mux("ecspi3_src", base + 0xb400, 24, 3, ecspi3_sel, ARRAY_SIZE(ecspi3_sel)); + clks[IMX7D_ECSPI4_ROOT_SRC] = imx_clk_mux("ecspi4_src", base + 0xb480, 24, 3, ecspi4_sel, ARRAY_SIZE(ecspi4_sel)); + clks[IMX7D_PWM1_ROOT_SRC] = imx_clk_mux("pwm1_src", base + 0xb500, 24, 3, pwm1_sel, ARRAY_SIZE(pwm1_sel)); + clks[IMX7D_PWM2_ROOT_SRC] = imx_clk_mux("pwm2_src", base + 0xb580, 24, 3, pwm2_sel, ARRAY_SIZE(pwm2_sel)); + clks[IMX7D_PWM3_ROOT_SRC] = imx_clk_mux("pwm3_src", base + 0xb600, 24, 3, pwm3_sel, ARRAY_SIZE(pwm3_sel)); + clks[IMX7D_PWM4_ROOT_SRC] = imx_clk_mux("pwm4_src", base + 0xb680, 24, 3, pwm4_sel, ARRAY_SIZE(pwm4_sel)); + clks[IMX7D_FLEXTIMER1_ROOT_SRC] = imx_clk_mux("flextimer1_src", base + 0xb700, 24, 3, flextimer1_sel, ARRAY_SIZE(flextimer1_sel)); + clks[IMX7D_FLEXTIMER2_ROOT_SRC] = imx_clk_mux("flextimer2_src", base + 0xb780, 24, 3, flextimer2_sel, ARRAY_SIZE(flextimer2_sel)); + clks[IMX7D_SIM1_ROOT_SRC] = imx_clk_mux("sim1_src", base + 0xb800, 24, 3, sim1_sel, ARRAY_SIZE(sim1_sel)); + clks[IMX7D_SIM2_ROOT_SRC] = imx_clk_mux("sim2_src", base + 0xb880, 24, 3, sim2_sel, ARRAY_SIZE(sim2_sel)); + clks[IMX7D_GPT1_ROOT_SRC] = imx_clk_mux("gpt1_src", base + 0xb900, 24, 3, gpt1_sel, ARRAY_SIZE(gpt1_sel)); + clks[IMX7D_GPT2_ROOT_SRC] = imx_clk_mux("gpt2_src", base + 0xb980, 24, 3, gpt2_sel, ARRAY_SIZE(gpt2_sel)); + clks[IMX7D_GPT3_ROOT_SRC] = imx_clk_mux("gpt3_src", base + 0xba00, 24, 3, gpt3_sel, ARRAY_SIZE(gpt3_sel)); + clks[IMX7D_GPT4_ROOT_SRC] = imx_clk_mux("gpt4_src", base + 0xba80, 24, 3, gpt4_sel, ARRAY_SIZE(gpt4_sel)); + clks[IMX7D_TRACE_ROOT_SRC] = imx_clk_mux("trace_src", base + 0xbb00, 24, 3, trace_sel, ARRAY_SIZE(trace_sel)); + clks[IMX7D_WDOG_ROOT_SRC] = imx_clk_mux("wdog_src", base + 0xbb80, 24, 3, wdog_sel, ARRAY_SIZE(wdog_sel)); + clks[IMX7D_CSI_MCLK_ROOT_SRC] = imx_clk_mux("csi_mclk_src", base + 0xbc00, 24, 3, csi_mclk_sel, ARRAY_SIZE(csi_mclk_sel)); + clks[IMX7D_AUDIO_MCLK_ROOT_SRC] = imx_clk_mux("audio_mclk_src", base + 0xbc80, 24, 3, audio_mclk_sel, ARRAY_SIZE(audio_mclk_sel)); + clks[IMX7D_WRCLK_ROOT_SRC] = imx_clk_mux("wrclk_src", base + 0xbd00, 24, 3, wrclk_sel, ARRAY_SIZE(wrclk_sel)); + clks[IMX7D_CLKO1_ROOT_SRC] = imx_clk_mux("clko1_src", base + 0xbd80, 24, 3, clko1_sel, ARRAY_SIZE(clko1_sel)); + clks[IMX7D_CLKO2_ROOT_SRC] = imx_clk_mux("clko2_src", base + 0xbe00, 24, 3, clko2_sel, ARRAY_SIZE(clko2_sel)); + + clks[IMX7D_ARM_A7_ROOT_CG] = imx_clk_gate("arm_a7_cg", "arm_a7_src", base + 0x8000, 28); + clks[IMX7D_ARM_M4_ROOT_CG] = imx_clk_gate("arm_m4_cg", "arm_m4_src", base + 0x8080, 28); + clks[IMX7D_ARM_M0_ROOT_CG] = imx_clk_gate("arm_m0_cg", "arm_m0_src", base + 0x8100, 28); + clks[IMX7D_MAIN_AXI_ROOT_CG] = imx_clk_gate("axi_cg", "axi_src", base + 0x8800, 28); + clks[IMX7D_DISP_AXI_ROOT_CG] = imx_clk_gate("disp_axi_cg", "disp_axi_src", base + 0x8880, 28); + clks[IMX7D_ENET_AXI_ROOT_CG] = imx_clk_gate("enet_axi_cg", "enet_axi_src", base + 0x8900, 28); + clks[IMX7D_NAND_USDHC_BUS_ROOT_CG] = imx_clk_gate("nand_usdhc_cg", "nand_usdhc_src", base + 0x8980, 28); + clks[IMX7D_AHB_CHANNEL_ROOT_CG] = imx_clk_gate("ahb_cg", "ahb_src", base + 0x9000, 28); + clks[IMX7D_DRAM_PHYM_ROOT_CG] = imx_clk_gate("dram_phym_cg", "dram_phym_src", base + 0x9800, 28); + clks[IMX7D_DRAM_ROOT_CG] = imx_clk_gate("dram_cg", "dram_src", base + 0x9880, 28); + clks[IMX7D_DRAM_PHYM_ALT_ROOT_CG] = imx_clk_gate("dram_phym_alt_cg", "dram_phym_alt_src", base + 0xa000, 28); + clks[IMX7D_DRAM_ALT_ROOT_CG] = imx_clk_gate("dram_alt_cg", "dram_alt_src", base + 0xa080, 28); + clks[IMX7D_USB_HSIC_ROOT_CG] = imx_clk_gate("usb_hsic_cg", "usb_hsic_src", base + 0xa100, 28); + clks[IMX7D_PCIE_CTRL_ROOT_CG] = imx_clk_gate("pcie_ctrl_cg", "pcie_ctrl_src", base + 0xa180, 28); + clks[IMX7D_PCIE_PHY_ROOT_CG] = imx_clk_gate("pcie_phy_cg", "pcie_phy_src", base + 0xa200, 28); + clks[IMX7D_EPDC_PIXEL_ROOT_CG] = imx_clk_gate("epdc_pixel_cg", "epdc_pixel_src", base + 0xa280, 28); + clks[IMX7D_LCDIF_PIXEL_ROOT_CG] = imx_clk_gate("lcdif_pixel_cg", "lcdif_pixel_src", base + 0xa300, 28); + clks[IMX7D_MIPI_DSI_ROOT_CG] = imx_clk_gate("mipi_dsi_cg", "mipi_dsi_src", base + 0xa380, 28); + clks[IMX7D_MIPI_CSI_ROOT_CG] = imx_clk_gate("mipi_csi_cg", "mipi_csi_src", base + 0xa400, 28); + clks[IMX7D_MIPI_DPHY_ROOT_CG] = imx_clk_gate("mipi_dphy_cg", "mipi_dphy_src", base + 0xa480, 28); + clks[IMX7D_SAI1_ROOT_CG] = imx_clk_gate("sai1_cg", "sai1_src", base + 0xa500, 28); + clks[IMX7D_SAI2_ROOT_CG] = imx_clk_gate("sai2_cg", "sai2_src", base + 0xa580, 28); + clks[IMX7D_SAI3_ROOT_CG] = imx_clk_gate("sai3_cg", "sai3_src", base + 0xa600, 28); + clks[IMX7D_SPDIF_ROOT_CG] = imx_clk_gate("spdif_cg", "spdif_src", base + 0xa680, 28); + clks[IMX7D_ENET1_REF_ROOT_CG] = imx_clk_gate("enet1_ref_cg", "enet1_ref_src", base + 0xa700, 28); + clks[IMX7D_ENET1_TIME_ROOT_CG] = imx_clk_gate("enet1_time_cg", "enet1_time_src", base + 0xa780, 28); + clks[IMX7D_ENET2_REF_ROOT_CG] = imx_clk_gate("enet2_ref_cg", "enet2_ref_src", base + 0xa800, 28); + clks[IMX7D_ENET2_TIME_ROOT_CG] = imx_clk_gate("enet2_time_cg", "enet2_time_src", base + 0xa880, 28); + clks[IMX7D_ENET_PHY_REF_ROOT_CG] = imx_clk_gate("enet_phy_ref_cg", "enet_phy_ref_src", base + 0xa900, 28); + clks[IMX7D_EIM_ROOT_CG] = imx_clk_gate("eim_cg", "eim_src", base + 0xa980, 28); + clks[IMX7D_NAND_ROOT_CG] = imx_clk_gate("nand_cg", "nand_src", base + 0xaa00, 28); + clks[IMX7D_QSPI_ROOT_CG] = imx_clk_gate("qspi_cg", "qspi_src", base + 0xaa80, 28); + clks[IMX7D_USDHC1_ROOT_CG] = imx_clk_gate("usdhc1_cg", "usdhc1_src", base + 0xab00, 28); + clks[IMX7D_USDHC2_ROOT_CG] = imx_clk_gate("usdhc2_cg", "usdhc2_src", base + 0xab80, 28); + clks[IMX7D_USDHC3_ROOT_CG] = imx_clk_gate("usdhc3_cg", "usdhc3_src", base + 0xac00, 28); + clks[IMX7D_CAN1_ROOT_CG] = imx_clk_gate("can1_cg", "can1_src", base + 0xac80, 28); + clks[IMX7D_CAN2_ROOT_CG] = imx_clk_gate("can2_cg", "can2_src", base + 0xad00, 28); + clks[IMX7D_I2C1_ROOT_CG] = imx_clk_gate("i2c1_cg", "i2c1_src", base + 0xad80, 28); + clks[IMX7D_I2C2_ROOT_CG] = imx_clk_gate("i2c2_cg", "i2c2_src", base + 0xae00, 28); + clks[IMX7D_I2C3_ROOT_CG] = imx_clk_gate("i2c3_cg", "i2c3_src", base + 0xae80, 28); + clks[IMX7D_I2C4_ROOT_CG] = imx_clk_gate("i2c4_cg", "i2c4_src", base + 0xaf00, 28); + clks[IMX7D_UART1_ROOT_CG] = imx_clk_gate("uart1_cg", "uart1_src", base + 0xaf80, 28); + clks[IMX7D_UART2_ROOT_CG] = imx_clk_gate("uart2_cg", "uart2_src", base + 0xb000, 28); + clks[IMX7D_UART3_ROOT_CG] = imx_clk_gate("uart3_cg", "uart3_src", base + 0xb080, 28); + clks[IMX7D_UART4_ROOT_CG] = imx_clk_gate("uart4_cg", "uart4_src", base + 0xb100, 28); + clks[IMX7D_UART5_ROOT_CG] = imx_clk_gate("uart5_cg", "uart5_src", base + 0xb180, 28); + clks[IMX7D_UART6_ROOT_CG] = imx_clk_gate("uart6_cg", "uart6_src", base + 0xb200, 28); + clks[IMX7D_UART7_ROOT_CG] = imx_clk_gate("uart7_cg", "uart7_src", base + 0xb280, 28); + clks[IMX7D_ECSPI1_ROOT_CG] = imx_clk_gate("ecspi1_cg", "ecspi1_src", base + 0xb300, 28); + clks[IMX7D_ECSPI2_ROOT_CG] = imx_clk_gate("ecspi2_cg", "ecspi2_src", base + 0xb380, 28); + clks[IMX7D_ECSPI3_ROOT_CG] = imx_clk_gate("ecspi3_cg", "ecspi3_src", base + 0xb400, 28); + clks[IMX7D_ECSPI4_ROOT_CG] = imx_clk_gate("ecspi4_cg", "ecspi4_src", base + 0xb480, 28); + clks[IMX7D_PWM1_ROOT_CG] = imx_clk_gate("pwm1_cg", "pwm1_src", base + 0xb500, 28); + clks[IMX7D_PWM2_ROOT_CG] = imx_clk_gate("pwm2_cg", "pwm2_src", base + 0xb580, 28); + clks[IMX7D_PWM3_ROOT_CG] = imx_clk_gate("pwm3_cg", "pwm3_src", base + 0xb600, 28); + clks[IMX7D_PWM4_ROOT_CG] = imx_clk_gate("pwm4_cg", "pwm4_src", base + 0xb680, 28); + clks[IMX7D_FLEXTIMER1_ROOT_CG] = imx_clk_gate("flextimer1_cg", "flextimer1_src", base + 0xb700, 28); + clks[IMX7D_FLEXTIMER2_ROOT_CG] = imx_clk_gate("flextimer2_cg", "flextimer2_src", base + 0xb780, 28); + clks[IMX7D_SIM1_ROOT_CG] = imx_clk_gate("sim1_cg", "sim1_src", base + 0xb800, 28); + clks[IMX7D_SIM2_ROOT_CG] = imx_clk_gate("sim2_cg", "sim2_src", base + 0xb880, 28); + clks[IMX7D_GPT1_ROOT_CG] = imx_clk_gate("gpt1_cg", "gpt1_src", base + 0xb900, 28); + clks[IMX7D_GPT2_ROOT_CG] = imx_clk_gate("gpt2_cg", "gpt2_src", base + 0xb980, 28); + clks[IMX7D_GPT3_ROOT_CG] = imx_clk_gate("gpt3_cg", "gpt3_src", base + 0xbA00, 28); + clks[IMX7D_GPT4_ROOT_CG] = imx_clk_gate("gpt4_cg", "gpt4_src", base + 0xbA80, 28); + clks[IMX7D_TRACE_ROOT_CG] = imx_clk_gate("trace_cg", "trace_src", base + 0xbb00, 28); + clks[IMX7D_WDOG_ROOT_CG] = imx_clk_gate("wdog_cg", "wdog_src", base + 0xbb80, 28); + clks[IMX7D_CSI_MCLK_ROOT_CG] = imx_clk_gate("csi_mclk_cg", "csi_mclk_src", base + 0xbc00, 28); + clks[IMX7D_AUDIO_MCLK_ROOT_CG] = imx_clk_gate("audio_mclk_cg", "audio_mclk_src", base + 0xbc80, 28); + clks[IMX7D_WRCLK_ROOT_CG] = imx_clk_gate("wrclk_cg", "wrclk_src", base + 0xbd00, 28); + clks[IMX7D_CLKO1_ROOT_CG] = imx_clk_gate("clko1_cg", "clko1_src", base + 0xbd80, 28); + clks[IMX7D_CLKO2_ROOT_CG] = imx_clk_gate("clko2_cg", "clko2_src", base + 0xbe00, 28); + + clks[IMX7D_MAIN_AXI_ROOT_PRE_DIV] = imx_clk_divider("axi_pre_div", "axi_cg", base + 0x8800, 16, 3); + clks[IMX7D_DISP_AXI_ROOT_PRE_DIV] = imx_clk_divider("disp_axi_pre_div", "disp_axi_cg", base + 0x8880, 16, 3); + clks[IMX7D_ENET_AXI_ROOT_PRE_DIV] = imx_clk_divider("enet_axi_pre_div", "enet_axi_cg", base + 0x8900, 16, 3); + clks[IMX7D_NAND_USDHC_BUS_ROOT_PRE_DIV] = imx_clk_divider("nand_usdhc_pre_div", "nand_usdhc_cg", base + 0x8980, 16, 3); + clks[IMX7D_AHB_CHANNEL_ROOT_PRE_DIV] = imx_clk_divider("ahb_pre_div", "ahb_cg", base + 0x9000, 16, 3); + clks[IMX7D_DRAM_PHYM_ALT_ROOT_PRE_DIV] = imx_clk_divider("dram_phym_alt_pre_div", "dram_phym_alt_cg", base + 0xa000, 16, 3); + clks[IMX7D_DRAM_ALT_ROOT_PRE_DIV] = imx_clk_divider("dram_alt_pre_div", "dram_alt_cg", base + 0xa080, 16, 3); + clks[IMX7D_USB_HSIC_ROOT_PRE_DIV] = imx_clk_divider("usb_hsic_pre_div", "usb_hsic_cg", base + 0xa100, 16, 3); + clks[IMX7D_PCIE_CTRL_ROOT_PRE_DIV] = imx_clk_divider("pcie_ctrl_pre_div", "pcie_ctrl_cg", base + 0xa180, 16, 3); + clks[IMX7D_PCIE_PHY_ROOT_PRE_DIV] = imx_clk_divider("pcie_phy_pre_div", "pcie_phy_cg", base + 0xa200, 16, 3); + clks[IMX7D_EPDC_PIXEL_ROOT_PRE_DIV] = imx_clk_divider("epdc_pixel_pre_div", "epdc_pixel_cg", base + 0xa280, 16, 3); + clks[IMX7D_LCDIF_PIXEL_ROOT_PRE_DIV] = imx_clk_divider("lcdif_pixel_pre_div", "lcdif_pixel_cg", base + 0xa300, 16, 3); + clks[IMX7D_MIPI_DSI_ROOT_PRE_DIV] = imx_clk_divider("mipi_dsi_pre_div", "mipi_dsi_cg", base + 0xa380, 16, 3); + clks[IMX7D_MIPI_CSI_ROOT_PRE_DIV] = imx_clk_divider("mipi_csi_pre_div", "mipi_csi_cg", base + 0xa400, 16, 3); + clks[IMX7D_MIPI_DPHY_ROOT_PRE_DIV] = imx_clk_divider("mipi_dphy_pre_div", "mipi_dphy_cg", base + 0xa480, 16, 3); + clks[IMX7D_SAI1_ROOT_PRE_DIV] = imx_clk_divider("sai1_pre_div", "sai1_cg", base + 0xa500, 16, 3); + clks[IMX7D_SAI2_ROOT_PRE_DIV] = imx_clk_divider("sai2_pre_div", "sai2_cg", base + 0xa580, 16, 3); + clks[IMX7D_SAI3_ROOT_PRE_DIV] = imx_clk_divider("sai3_pre_div", "sai3_cg", base + 0xa600, 16, 3); + clks[IMX7D_SPDIF_ROOT_PRE_DIV] = imx_clk_divider("spdif_pre_div", "spdif_cg", base + 0xa680, 16, 3); + clks[IMX7D_ENET1_REF_ROOT_PRE_DIV] = imx_clk_divider("enet1_ref_pre_div", "enet1_ref_cg", base + 0xa700, 16, 3); + clks[IMX7D_ENET1_TIME_ROOT_PRE_DIV] = imx_clk_divider("enet1_time_pre_div", "enet1_time_cg", base + 0xa780, 16, 3); + clks[IMX7D_ENET2_REF_ROOT_PRE_DIV] = imx_clk_divider("enet2_ref_pre_div", "enet2_ref_cg", base + 0xa800, 16, 3); + clks[IMX7D_ENET2_TIME_ROOT_PRE_DIV] = imx_clk_divider("enet2_time_pre_div", "enet2_time_cg", base + 0xa880, 16, 3); + clks[IMX7D_ENET_PHY_REF_ROOT_PRE_DIV] = imx_clk_divider("enet_phy_ref_pre_div", "enet_phy_ref_cg", base + 0xa900, 16, 3); + clks[IMX7D_EIM_ROOT_PRE_DIV] = imx_clk_divider("eim_pre_div", "eim_cg", base + 0xa980, 16, 3); + clks[IMX7D_NAND_ROOT_PRE_DIV] = imx_clk_divider("nand_pre_div", "nand_cg", base + 0xaa00, 16, 3); + clks[IMX7D_QSPI_ROOT_PRE_DIV] = imx_clk_divider("qspi_pre_div", "qspi_cg", base + 0xaa80, 16, 3); + clks[IMX7D_USDHC1_ROOT_PRE_DIV] = imx_clk_divider("usdhc1_pre_div", "usdhc1_cg", base + 0xab00, 16, 3); + clks[IMX7D_USDHC2_ROOT_PRE_DIV] = imx_clk_divider("usdhc2_pre_div", "usdhc2_cg", base + 0xab80, 16, 3); + clks[IMX7D_USDHC3_ROOT_PRE_DIV] = imx_clk_divider("usdhc3_pre_div", "usdhc3_cg", base + 0xac00, 16, 3); + clks[IMX7D_CAN1_ROOT_PRE_DIV] = imx_clk_divider("can1_pre_div", "can1_cg", base + 0xac80, 16, 3); + clks[IMX7D_CAN2_ROOT_PRE_DIV] = imx_clk_divider("can2_pre_div", "can2_cg", base + 0xad00, 16, 3); + clks[IMX7D_I2C1_ROOT_PRE_DIV] = imx_clk_divider("i2c1_pre_div", "i2c1_cg", base + 0xad80, 16, 3); + clks[IMX7D_I2C2_ROOT_PRE_DIV] = imx_clk_divider("i2c2_pre_div", "i2c2_cg", base + 0xae00, 16, 3); + clks[IMX7D_I2C3_ROOT_PRE_DIV] = imx_clk_divider("i2c3_pre_div", "i2c3_cg", base + 0xae80, 16, 3); + clks[IMX7D_I2C4_ROOT_PRE_DIV] = imx_clk_divider("i2c4_pre_div", "i2c4_cg", base + 0xaf00, 16, 3); + clks[IMX7D_UART1_ROOT_PRE_DIV] = imx_clk_divider("uart1_pre_div", "uart1_cg", base + 0xaf80, 16, 3); + clks[IMX7D_UART2_ROOT_PRE_DIV] = imx_clk_divider("uart2_pre_div", "uart2_cg", base + 0xb000, 16, 3); + clks[IMX7D_UART3_ROOT_PRE_DIV] = imx_clk_divider("uart3_pre_div", "uart3_cg", base + 0xb080, 16, 3); + clks[IMX7D_UART4_ROOT_PRE_DIV] = imx_clk_divider("uart4_pre_div", "uart4_cg", base + 0xb100, 16, 3); + clks[IMX7D_UART5_ROOT_PRE_DIV] = imx_clk_divider("uart5_pre_div", "uart5_cg", base + 0xb180, 16, 3); + clks[IMX7D_UART6_ROOT_PRE_DIV] = imx_clk_divider("uart6_pre_div", "uart6_cg", base + 0xb200, 16, 3); + clks[IMX7D_UART7_ROOT_PRE_DIV] = imx_clk_divider("uart7_pre_div", "uart7_cg", base + 0xb280, 16, 3); + clks[IMX7D_ECSPI1_ROOT_PRE_DIV] = imx_clk_divider("ecspi1_pre_div", "ecspi1_cg", base + 0xb300, 16, 3); + clks[IMX7D_ECSPI2_ROOT_PRE_DIV] = imx_clk_divider("ecspi2_pre_div", "ecspi2_cg", base + 0xb380, 16, 3); + clks[IMX7D_ECSPI3_ROOT_PRE_DIV] = imx_clk_divider("ecspi3_pre_div", "ecspi3_cg", base + 0xb400, 16, 3); + clks[IMX7D_ECSPI4_ROOT_PRE_DIV] = imx_clk_divider("ecspi4_pre_div", "ecspi4_cg", base + 0xb480, 16, 3); + clks[IMX7D_PWM1_ROOT_PRE_DIV] = imx_clk_divider("pwm1_pre_div", "pwm1_cg", base + 0xb500, 16, 3); + clks[IMX7D_PWM2_ROOT_PRE_DIV] = imx_clk_divider("pwm2_pre_div", "pwm2_cg", base + 0xb580, 16, 3); + clks[IMX7D_PWM3_ROOT_PRE_DIV] = imx_clk_divider("pwm3_pre_div", "pwm3_cg", base + 0xb600, 16, 3); + clks[IMX7D_PWM4_ROOT_PRE_DIV] = imx_clk_divider("pwm4_pre_div", "pwm4_cg", base + 0xb680, 16, 3); + clks[IMX7D_FLEXTIMER1_ROOT_PRE_DIV] = imx_clk_divider("flextimer1_pre_div", "flextimer1_cg", base + 0xb700, 16, 3); + clks[IMX7D_FLEXTIMER2_ROOT_PRE_DIV] = imx_clk_divider("flextimer2_pre_div", "flextimer2_cg", base + 0xb780, 16, 3); + clks[IMX7D_SIM1_ROOT_PRE_DIV] = imx_clk_divider("sim1_pre_div", "sim1_cg", base + 0xb800, 16, 3); + clks[IMX7D_SIM2_ROOT_PRE_DIV] = imx_clk_divider("sim2_pre_div", "sim2_cg", base + 0xb880, 16, 3); + clks[IMX7D_GPT1_ROOT_PRE_DIV] = imx_clk_divider("gpt1_pre_div", "gpt1_cg", base + 0xb900, 16, 3); + clks[IMX7D_GPT2_ROOT_PRE_DIV] = imx_clk_divider("gpt2_pre_div", "gpt2_cg", base + 0xb980, 16, 3); + clks[IMX7D_GPT3_ROOT_PRE_DIV] = imx_clk_divider("gpt3_pre_div", "gpt3_cg", base + 0xba00, 16, 3); + clks[IMX7D_GPT4_ROOT_PRE_DIV] = imx_clk_divider("gpt4_pre_div", "gpt4_cg", base + 0xba80, 16, 3); + clks[IMX7D_TRACE_ROOT_PRE_DIV] = imx_clk_divider("trace_pre_div", "trace_cg", base + 0xbb00, 16, 3); + clks[IMX7D_WDOG_ROOT_PRE_DIV] = imx_clk_divider("wdog_pre_div", "wdog_cg", base + 0xbb80, 16, 3); + clks[IMX7D_CSI_MCLK_ROOT_PRE_DIV] = imx_clk_divider("csi_mclk_pre_div", "csi_mclk_cg", base + 0xbc00, 16, 3); + clks[IMX7D_AUDIO_MCLK_ROOT_PRE_DIV] = imx_clk_divider("audio_mclk_pre_div", "audio_mclk_cg", base + 0xbc80, 16, 3); + clks[IMX7D_WRCLK_ROOT_PRE_DIV] = imx_clk_divider("wrclk_pre_div", "wrclk_cg", base + 0xbd00, 16, 3); + clks[IMX7D_CLKO1_ROOT_PRE_DIV] = imx_clk_divider("clko1_pre_div", "clko1_cg", base + 0xbd80, 16, 3); + clks[IMX7D_CLKO2_ROOT_PRE_DIV] = imx_clk_divider("clko2_pre_div", "clko2_cg", base + 0xbe00, 16, 3); + + clks[IMX7D_ARM_A7_ROOT_DIV] = imx_clk_divider("arm_a7_div", "arm_a7_cg", base + 0x8000, 0, 3); + clks[IMX7D_ARM_M4_ROOT_DIV] = imx_clk_divider("arm_m4_div", "arm_m4_cg", base + 0x8080, 0, 3); + clks[IMX7D_ARM_M0_ROOT_DIV] = imx_clk_divider("arm_m0_div", "arm_m0_cg", base + 0x8100, 0, 3); + clks[IMX7D_MAIN_AXI_ROOT_DIV] = imx_clk_divider("axi_post_div", "axi_pre_div", base + 0x8800, 0, 6); + clks[IMX7D_DISP_AXI_ROOT_DIV] = imx_clk_divider("disp_axi_post_div", "disp_axi_pre_div", base + 0x8880, 0, 6); + clks[IMX7D_ENET_AXI_ROOT_DIV] = imx_clk_divider("enet_axi_post_div", "enet_axi_pre_div", base + 0x8900, 0, 6); + clks[IMX7D_NAND_USDHC_BUS_ROOT_DIV] = imx_clk_divider("nand_usdhc_post_div", "nand_usdhc_pre_div", base + 0x8980, 0, 6); + clks[IMX7D_AHB_CHANNEL_ROOT_DIV] = imx_clk_divider("ahb_post_div", "ahb_pre_div", base + 0x9000, 0, 6); + clks[IMX7D_DRAM_ROOT_DIV] = imx_clk_divider("dram_post_div", "dram_cg", base + 0x9880, 0, 3); + clks[IMX7D_DRAM_PHYM_ALT_ROOT_DIV] = imx_clk_divider("dram_phym_alt_post_div", "dram_phym_alt_pre_div", base + 0xa000, 0, 3); + clks[IMX7D_DRAM_ALT_ROOT_DIV] = imx_clk_divider("dram_alt_post_div", "dram_alt_pre_div", base + 0xa080, 0, 3); + clks[IMX7D_USB_HSIC_ROOT_DIV] = imx_clk_divider("usb_hsic_post_div", "usb_hsic_pre_div", base + 0xa100, 0, 6); + clks[IMX7D_PCIE_CTRL_ROOT_DIV] = imx_clk_divider("pcie_ctrl_post_div", "pcie_ctrl_pre_div", base + 0xa180, 0, 6); + clks[IMX7D_PCIE_PHY_ROOT_DIV] = imx_clk_divider("pcie_phy_post_div", "pcie_phy_pre_div", base + 0xa200, 0, 6); + clks[IMX7D_EPDC_PIXEL_ROOT_DIV] = imx_clk_divider("epdc_pixel_post_div", "epdc_pixel_pre_div", base + 0xa280, 0, 6); + clks[IMX7D_LCDIF_PIXEL_ROOT_DIV] = imx_clk_divider("lcdif_pixel_post_div", "lcdif_pixel_pre_div", base + 0xa300, 0, 6); + clks[IMX7D_MIPI_DSI_ROOT_DIV] = imx_clk_divider("mipi_dsi_post_div", "mipi_dsi_pre_div", base + 0xa380, 0, 6); + clks[IMX7D_MIPI_CSI_ROOT_DIV] = imx_clk_divider("mipi_csi_post_div", "mipi_csi_pre_div", base + 0xa400, 0, 6); + clks[IMX7D_MIPI_DPHY_ROOT_DIV] = imx_clk_divider("mipi_dphy_post_div", "mipi_csi_dphy_div", base + 0xa480, 0, 6); + clks[IMX7D_SAI1_ROOT_DIV] = imx_clk_divider("sai1_post_div", "sai1_pre_div", base + 0xa500, 0, 6); + clks[IMX7D_SAI2_ROOT_DIV] = imx_clk_divider("sai2_post_div", "sai2_pre_div", base + 0xa580, 0, 6); + clks[IMX7D_SAI3_ROOT_DIV] = imx_clk_divider("sai3_post_div", "sai3_pre_div", base + 0xa600, 0, 6); + clks[IMX7D_SPDIF_ROOT_DIV] = imx_clk_divider("spdif_post_div", "spdif_pre_div", base + 0xa680, 0, 6); + clks[IMX7D_ENET1_REF_ROOT_DIV] = imx_clk_divider("enet1_ref_post_div", "enet1_ref_pre_div", base + 0xa700, 0, 6); + clks[IMX7D_ENET1_TIME_ROOT_DIV] = imx_clk_divider("enet1_time_post_div", "enet1_time_pre_div", base + 0xa780, 0, 6); + clks[IMX7D_ENET2_REF_ROOT_DIV] = imx_clk_divider("enet2_ref_post_div", "enet2_ref_pre_div", base + 0xa800, 0, 6); + clks[IMX7D_ENET2_TIME_ROOT_DIV] = imx_clk_divider("enet2_time_post_div", "enet2_time_pre_div", base + 0xa880, 0, 6); + clks[IMX7D_ENET_PHY_REF_ROOT_DIV] = imx_clk_divider("enet_phy_ref_post_div", "enet_phy_ref_pre_div", base + 0xa900, 0, 6); + clks[IMX7D_EIM_ROOT_DIV] = imx_clk_divider("eim_post_div", "eim_pre_div", base + 0xa980, 0, 6); + clks[IMX7D_NAND_ROOT_DIV] = imx_clk_divider("nand_post_div", "nand_pre_div", base + 0xaa00, 0, 6); + clks[IMX7D_QSPI_ROOT_DIV] = imx_clk_divider("qspi_post_div", "qspi_pre_div", base + 0xaa80, 0, 6); + clks[IMX7D_USDHC1_ROOT_DIV] = imx_clk_divider("usdhc1_post_div", "usdhc1_pre_div", base + 0xab00, 0, 6); + clks[IMX7D_USDHC2_ROOT_DIV] = imx_clk_divider("usdhc2_post_div", "usdhc2_pre_div", base + 0xab80, 0, 6); + clks[IMX7D_USDHC3_ROOT_DIV] = imx_clk_divider("usdhc3_post_div", "usdhc3_pre_div", base + 0xac00, 0, 6); + clks[IMX7D_CAN1_ROOT_DIV] = imx_clk_divider("can1_post_div", "can1_pre_div", base + 0xac80, 0, 6); + clks[IMX7D_CAN2_ROOT_DIV] = imx_clk_divider("can2_post_div", "can2_pre_div", base + 0xad00, 0, 6); + clks[IMX7D_I2C1_ROOT_DIV] = imx_clk_divider("i2c1_post_div", "i2c1_pre_div", base + 0xad80, 0, 6); + clks[IMX7D_I2C2_ROOT_DIV] = imx_clk_divider("i2c2_post_div", "i2c2_pre_div", base + 0xae00, 0, 6); + clks[IMX7D_I2C3_ROOT_DIV] = imx_clk_divider("i2c3_post_div", "i2c3_pre_div", base + 0xae80, 0, 6); + clks[IMX7D_I2C4_ROOT_DIV] = imx_clk_divider("i2c4_post_div", "i2c4_pre_div", base + 0xaf00, 0, 6); + clks[IMX7D_UART1_ROOT_DIV] = imx_clk_divider("uart1_post_div", "uart1_pre_div", base + 0xaf80, 0, 6); + clks[IMX7D_UART2_ROOT_DIV] = imx_clk_divider("uart2_post_div", "uart2_pre_div", base + 0xb000, 0, 6); + clks[IMX7D_UART3_ROOT_DIV] = imx_clk_divider("uart3_post_div", "uart3_pre_div", base + 0xb080, 0, 6); + clks[IMX7D_UART4_ROOT_DIV] = imx_clk_divider("uart4_post_div", "uart4_pre_div", base + 0xb100, 0, 6); + clks[IMX7D_UART5_ROOT_DIV] = imx_clk_divider("uart5_post_div", "uart5_pre_div", base + 0xb180, 0, 6); + clks[IMX7D_UART6_ROOT_DIV] = imx_clk_divider("uart6_post_div", "uart6_pre_div", base + 0xb200, 0, 6); + clks[IMX7D_UART7_ROOT_DIV] = imx_clk_divider("uart7_post_div", "uart7_pre_div", base + 0xb280, 0, 6); + clks[IMX7D_ECSPI1_ROOT_DIV] = imx_clk_divider("ecspi1_post_div", "ecspi1_pre_div", base + 0xb300, 0, 6); + clks[IMX7D_ECSPI2_ROOT_DIV] = imx_clk_divider("ecspi2_post_div", "ecspi2_pre_div", base + 0xb380, 0, 6); + clks[IMX7D_ECSPI3_ROOT_DIV] = imx_clk_divider("ecspi3_post_div", "ecspi3_pre_div", base + 0xb400, 0, 6); + clks[IMX7D_ECSPI4_ROOT_DIV] = imx_clk_divider("ecspi4_post_div", "ecspi4_pre_div", base + 0xb480, 0, 6); + clks[IMX7D_PWM1_ROOT_DIV] = imx_clk_divider("pwm1_post_div", "pwm1_pre_div", base + 0xb500, 0, 6); + clks[IMX7D_PWM2_ROOT_DIV] = imx_clk_divider("pwm2_post_div", "pwm2_pre_div", base + 0xb580, 0, 6); + clks[IMX7D_PWM3_ROOT_DIV] = imx_clk_divider("pwm3_post_div", "pwm3_pre_div", base + 0xb600, 0, 6); + clks[IMX7D_PWM4_ROOT_DIV] = imx_clk_divider("pwm4_post_div", "pwm4_pre_div", base + 0xb680, 0, 6); + clks[IMX7D_FLEXTIMER1_ROOT_DIV] = imx_clk_divider("flextimer1_post_div", "flextimer1_pre_div", base + 0xb700, 0, 6); + clks[IMX7D_FLEXTIMER2_ROOT_DIV] = imx_clk_divider("flextimer2_post_div", "flextimer2_pre_div", base + 0xb780, 0, 6); + clks[IMX7D_SIM1_ROOT_DIV] = imx_clk_divider("sim1_post_div", "sim1_pre_div", base + 0xb800, 0, 6); + clks[IMX7D_SIM2_ROOT_DIV] = imx_clk_divider("sim2_post_div", "sim2_pre_div", base + 0xb880, 0, 6); + clks[IMX7D_GPT1_ROOT_DIV] = imx_clk_divider("gpt1_post_div", "gpt1_pre_div", base + 0xb900, 0, 6); + clks[IMX7D_GPT2_ROOT_DIV] = imx_clk_divider("gpt2_post_div", "gpt2_pre_div", base + 0xb980, 0, 6); + clks[IMX7D_GPT3_ROOT_DIV] = imx_clk_divider("gpt3_post_div", "gpt3_pre_div", base + 0xba00, 0, 6); + clks[IMX7D_GPT4_ROOT_DIV] = imx_clk_divider("gpt4_post_div", "gpt4_pre_div", base + 0xba80, 0, 6); + clks[IMX7D_TRACE_ROOT_DIV] = imx_clk_divider("trace_post_div", "trace_pre_div", base + 0xbb00, 0, 6); + clks[IMX7D_WDOG_ROOT_DIV] = imx_clk_divider("wdog_post_div", "wdog_pre_div", base + 0xbb80, 0, 6); + clks[IMX7D_CSI_MCLK_ROOT_DIV] = imx_clk_divider("csi_mclk_post_div", "csi_mclk_pre_div", base + 0xbc00, 0, 6); + clks[IMX7D_AUDIO_MCLK_ROOT_DIV] = imx_clk_divider("audio_mclk_post_div", "audio_mclk_pre_div", base + 0xbc80, 0, 6); + clks[IMX7D_WRCLK_ROOT_DIV] = imx_clk_divider("wrclk_post_div", "wrclk_pre_div", base + 0xbd00, 0, 6); + clks[IMX7D_CLKO1_ROOT_DIV] = imx_clk_divider("clko1_post_div", "clko1_pre_div", base + 0xbd80, 0, 6); + clks[IMX7D_CLKO2_ROOT_DIV] = imx_clk_divider("clko2_post_div", "clko2_pre_div", base + 0xbe00, 0, 6); + + clks[IMX7D_ARM_A7_ROOT_CLK] = imx_clk_gate2("arm_a7_root_clk", "arm_a7_div", base + 0x4000, 0); + clks[IMX7D_ARM_M4_ROOT_CLK] = imx_clk_gate2("arm_m4_root_clk", "arm_m4_div", base + 0x4010, 0); + clks[IMX7D_ARM_M0_ROOT_CLK] = imx_clk_gate2("arm_m0_root_clk", "arm_m0_div", base + 0x4020, 0); + clks[IMX7D_MAIN_AXI_ROOT_CLK] = imx_clk_gate2("main_axi_root_clk", "axi_post_div", base + 0x4040, 0); + clks[IMX7D_DISP_AXI_ROOT_CLK] = imx_clk_gate2("disp_axi_root_clk", "disp_axi_post_div", base + 0x4050, 0); + clks[IMX7D_ENET_AXI_ROOT_CLK] = imx_clk_gate2("enet_axi_root_clk", "enet_axi_post_div", base + 0x4060, 0); + clks[IMX7D_OCRAM_CLK] = imx_clk_gate2("ocram_clk", "axi_post_div", base + 0x4110, 0); + clks[IMX7D_OCRAM_S_CLK] = imx_clk_gate2("ocram_s_clk", "ahb_post_div", base + 0x4120, 0); + clks[IMX7D_NAND_USDHC_BUS_ROOT_CLK] = imx_clk_gate2("nand_usdhc_root_clk", "nand_usdhc_post_div", base + 0x4130, 0); + clks[IMX7D_AHB_CHANNEL_ROOT_CLK] = imx_clk_gate2("ahb_root_clk", "ahb_post_div", base + 0x4200, 0); + clks[IMX7D_DRAM_ROOT_CLK] = imx_clk_gate2("dram_root_clk", "dram_post_div", base + 0x4130, 0); + clks[IMX7D_DRAM_PHYM_ROOT_CLK] = imx_clk_gate2("dram_phym_root_clk", "dram_phym_cg", base + 0x4130, 0); + clks[IMX7D_DRAM_PHYM_ALT_ROOT_CLK] = imx_clk_gate2("dram_phym_alt_root_clk", "dram_phym_alt_post_div", base + 0x4130, 0); + clks[IMX7D_DRAM_ALT_ROOT_CLK] = imx_clk_gate2("dram_alt_root_clk", "dram_alt_post_div", base + 0x4130, 0); + clks[IMX7D_USB_HSIC_ROOT_CLK] = imx_clk_gate2("usb_hsic_root_clk", "usb_hsic_post_div", base + 0x4420, 0); + clks[IMX7D_PCIE_CTRL_ROOT_CLK] = imx_clk_gate2("pcie_ctrl_root_clk", "pcie_ctrl_post_div", base + 0x4600, 0); + clks[IMX7D_PCIE_PHY_ROOT_CLK] = imx_clk_gate2("pcie_phy_root_clk", "pcie_phy_post_div", base + 0x4600, 0); + clks[IMX7D_EPDC_PIXEL_ROOT_CLK] = imx_clk_gate2("epdc_pixel_root_clk", "epdc_pixel_post_div", base + 0x44a0, 0); + clks[IMX7D_LCDIF_PIXEL_ROOT_CLK] = imx_clk_gate2("lcdif_pixel_root_clk", "lcdif_pixel_post_div", base + 0x44b0, 0); + clks[IMX7D_MIPI_DSI_ROOT_CLK] = imx_clk_gate2("mipi_dsi_root_clk", "mipi_dsi_post_div", base + 0x4650, 0); + clks[IMX7D_MIPI_CSI_ROOT_CLK] = imx_clk_gate2("mipi_csi_root_clk", "mipi_csi_post_div", base + 0x4640, 0); + clks[IMX7D_MIPI_DPHY_ROOT_CLK] = imx_clk_gate2("mipi_dphy_root_clk", "mipi_dphy_post_div", base + 0x4660, 0); + clks[IMX7D_SAI1_ROOT_CLK] = imx_clk_gate2("sai1_root_clk", "sai1_post_div", base + 0x48c0, 0); + clks[IMX7D_SAI2_ROOT_CLK] = imx_clk_gate2("sai2_root_clk", "sai2_post_div", base + 0x48d0, 0); + clks[IMX7D_SAI3_ROOT_CLK] = imx_clk_gate2("sai3_root_clk", "sai3_post_div", base + 0x48e0, 0); + clks[IMX7D_SPDIF_ROOT_CLK] = imx_clk_gate2("spdif_root_clk", "spdif_post_div", base + 0x44d0, 0); + clks[IMX7D_ENET1_REF_ROOT_CLK] = imx_clk_gate2("enet1_ref_root_clk", "enet1_ref_post_div", base + 0x44e0, 0); + clks[IMX7D_ENET1_TIME_ROOT_CLK] = imx_clk_gate2("enet1_time_root_clk", "enet1_time_post_div", base + 0x44f0, 0); + clks[IMX7D_ENET2_REF_ROOT_CLK] = imx_clk_gate2("enet2_ref_root_clk", "enet2_ref_post_div", base + 0x4500, 0); + clks[IMX7D_ENET2_TIME_ROOT_CLK] = imx_clk_gate2("enet2_time_root_clk", "enet2_time_post_div", base + 0x4510, 0); + clks[IMX7D_ENET_PHY_REF_ROOT_CLK] = imx_clk_gate2("enet_phy_ref_root_clk", "enet_phy_ref_post_div", base + 0x4520, 0); + clks[IMX7D_EIM_ROOT_CLK] = imx_clk_gate2("eim_root_clk", "eim_post_div", base + 0x4160, 0); + clks[IMX7D_NAND_ROOT_CLK] = imx_clk_gate2("nand_root_clk", "nand_post_div", base + 0x4140, 0); + clks[IMX7D_QSPI_ROOT_CLK] = imx_clk_gate2("qspi_root_clk", "qspi_post_div", base + 0x4150, 0); + clks[IMX7D_USDHC1_ROOT_CLK] = imx_clk_gate2("usdhc1_root_clk", "usdhc1_post_div", base + 0x46c0, 0); + clks[IMX7D_USDHC2_ROOT_CLK] = imx_clk_gate2("usdhc2_root_clk", "usdhc2_post_div", base + 0x46d0, 0); + clks[IMX7D_USDHC3_ROOT_CLK] = imx_clk_gate2("usdhc3_root_clk", "usdhc3_post_div", base + 0x46e0, 0); + clks[IMX7D_CAN1_ROOT_CLK] = imx_clk_gate2("can1_root_clk", "can1_post_div", base + 0x4740, 0); + clks[IMX7D_CAN2_ROOT_CLK] = imx_clk_gate2("can2_root_clk", "can2_post_div", base + 0x4750, 0); + clks[IMX7D_I2C1_ROOT_CLK] = imx_clk_gate2("i2c1_root_clk", "i2c1_post_div", base + 0x4880, 0); + clks[IMX7D_I2C2_ROOT_CLK] = imx_clk_gate2("i2c2_root_clk", "i2c2_post_div", base + 0x4890, 0); + clks[IMX7D_I2C3_ROOT_CLK] = imx_clk_gate2("i2c3_root_clk", "i2c3_post_div", base + 0x48a0, 0); + clks[IMX7D_I2C4_ROOT_CLK] = imx_clk_gate2("i2c4_root_clk", "i2c4_post_div", base + 0x48b0, 0); + clks[IMX7D_UART1_ROOT_CLK] = imx_clk_gate2("uart1_root_clk", "uart1_post_div", base + 0x4940, 0); + clks[IMX7D_UART2_ROOT_CLK] = imx_clk_gate2("uart2_root_clk", "uart2_post_div", base + 0x4950, 0); + clks[IMX7D_UART3_ROOT_CLK] = imx_clk_gate2("uart3_root_clk", "uart3_post_div", base + 0x4960, 0); + clks[IMX7D_UART4_ROOT_CLK] = imx_clk_gate2("uart4_root_clk", "uart4_post_div", base + 0x4970, 0); + clks[IMX7D_UART5_ROOT_CLK] = imx_clk_gate2("uart5_root_clk", "uart5_post_div", base + 0x4980, 0); + clks[IMX7D_UART6_ROOT_CLK] = imx_clk_gate2("uart6_root_clk", "uart6_post_div", base + 0x4990, 0); + clks[IMX7D_UART7_ROOT_CLK] = imx_clk_gate2("uart7_root_clk", "uart7_post_div", base + 0x49a0, 0); + clks[IMX7D_ECSPI1_ROOT_CLK] = imx_clk_gate2("ecspi1_root_clk", "ecspi1_post_div", base + 0x4780, 0); + clks[IMX7D_ECSPI2_ROOT_CLK] = imx_clk_gate2("ecspi2_root_clk", "ecspi2_post_div", base + 0x4790, 0); + clks[IMX7D_ECSPI3_ROOT_CLK] = imx_clk_gate2("ecspi3_root_clk", "ecspi3_post_div", base + 0x47a0, 0); + clks[IMX7D_ECSPI4_ROOT_CLK] = imx_clk_gate2("ecspi4_root_clk", "ecspi4_post_div", base + 0x47b0, 0); + clks[IMX7D_PWM1_ROOT_CLK] = imx_clk_gate2("pwm1_root_clk", "pwm1_post_div", base + 0x4840, 0); + clks[IMX7D_PWM2_ROOT_CLK] = imx_clk_gate2("pwm2_root_clk", "pwm2_post_div", base + 0x4850, 0); + clks[IMX7D_PWM3_ROOT_CLK] = imx_clk_gate2("pwm3_root_clk", "pwm3_post_div", base + 0x4860, 0); + clks[IMX7D_PWM4_ROOT_CLK] = imx_clk_gate2("pwm4_root_clk", "pwm4_post_div", base + 0x4870, 0); + clks[IMX7D_FLEXTIMER1_ROOT_CLK] = imx_clk_gate2("flextimer1_root_clk", "flextimer1_post_div", base + 0x4800, 0); + clks[IMX7D_FLEXTIMER2_ROOT_CLK] = imx_clk_gate2("flextimer2_root_clk", "flextimer2_post_div", base + 0x4810, 0); + clks[IMX7D_SIM1_ROOT_CLK] = imx_clk_gate2("sim1_root_clk", "sim1_post_div", base + 0x4900, 0); + clks[IMX7D_SIM2_ROOT_CLK] = imx_clk_gate2("sim2_root_clk", "sim2_post_div", base + 0x4910, 0); + clks[IMX7D_GPT1_ROOT_CLK] = imx_clk_gate2("gpt1_root_clk", "gpt1_post_div", base + 0x47c0, 0); + clks[IMX7D_GPT2_ROOT_CLK] = imx_clk_gate2("gpt2_root_clk", "gpt2_post_div", base + 0x47d0, 0); + clks[IMX7D_GPT3_ROOT_CLK] = imx_clk_gate2("gpt3_root_clk", "gpt3_post_div", base + 0x47e0, 0); + clks[IMX7D_GPT4_ROOT_CLK] = imx_clk_gate2("gpt4_root_clk", "gpt4_post_div", base + 0x47f0, 0); + clks[IMX7D_TRACE_ROOT_CLK] = imx_clk_gate2("trace_root_clk", "trace_post_div", base + 0x4300, 0); + clks[IMX7D_WDOG1_ROOT_CLK] = imx_clk_gate2("wdog1_root_clk", "wdog_post_div", base + 0x49c0, 0); + clks[IMX7D_WDOG2_ROOT_CLK] = imx_clk_gate2("wdog2_root_clk", "wdog_post_div", base + 0x49d0, 0); + clks[IMX7D_WDOG3_ROOT_CLK] = imx_clk_gate2("wdog3_root_clk", "wdog_post_div", base + 0x49e0, 0); + clks[IMX7D_WDOG4_ROOT_CLK] = imx_clk_gate2("wdog4_root_clk", "wdog_post_div", base + 0x49f0, 0); + clks[IMX7D_CSI_MCLK_ROOT_CLK] = imx_clk_gate2("csi_mclk_root_clk", "csi_mclk_post_div", base + 0x4490, 0); + clks[IMX7D_AUDIO_MCLK_ROOT_CLK] = imx_clk_gate2("audio_mclk_root_clk", "audio_mclk_post_div", base + 0x4790, 0); + clks[IMX7D_WRCLK_ROOT_CLK] = imx_clk_gate2("wrclk_root_clk", "wrclk_post_div", base + 0x47a0, 0); + + clks[IMX7D_GPT_3M_CLK] = imx_clk_fixed_factor("gpt_3m", "osc", 1, 8); + + for (i = 0; i < ARRAY_SIZE(clks); i++) + if (IS_ERR(clks[i])) + pr_err("i.MX7D clk %d: register failed with %ld\n", + i, PTR_ERR(clks[i])); + + clk_data.clks = clks; + clk_data.clk_num = ARRAY_SIZE(clks); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + /* TO BE FIXED LATER + * Enable all clock to bring up imx7, otherwise system will be halt and block + * the other part upstream Because imx7d clock design changed, clock framework + * need do a little modify. + * Dong Aisheng is working on this. After that, this part need be changed. + */ + for (i = 0; i < IMX7D_CLK_END; i++) + clk_prepare_enable(clks[i]); + + /* use old gpt clk setting, gpt1 root clk must be twice as gpt counter freq */ + clk_set_parent(clks[IMX7D_GPT1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]); + + /* + * init enet clock source: + * AXI clock source is 250MHz + * Phy refrence clock is 25MHz + * 1588 time clock source is 100MHz + */ + clk_set_parent(clks[IMX7D_ENET_AXI_ROOT_SRC], clks[IMX7D_PLL_ENET_MAIN_250M_CLK]); + clk_set_parent(clks[IMX7D_ENET_PHY_REF_ROOT_SRC], clks[IMX7D_PLL_ENET_MAIN_25M_CLK]); + clk_set_parent(clks[IMX7D_ENET1_TIME_ROOT_SRC], clks[IMX7D_PLL_ENET_MAIN_100M_CLK]); + clk_set_parent(clks[IMX7D_ENET2_TIME_ROOT_SRC], clks[IMX7D_PLL_ENET_MAIN_100M_CLK]); + + /* set uart module clock's parent clock source that must be great then 80MHz */ + clk_set_parent(clks[IMX7D_UART1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]); + +} +CLK_OF_DECLARE(imx7d, "fsl,imx7d-ccm", imx7d_clocks_init); diff --git a/drivers/clk/imx/clk-pfd.c b/drivers/clk/imx/clk-pfd.c new file mode 100644 index 000000000000..0b0f6f66ec56 --- /dev/null +++ b/drivers/clk/imx/clk-pfd.c @@ -0,0 +1,158 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * Copyright 2012 Linaro Ltd. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/err.h> +#include "clk.h" + +/** + * struct clk_pfd - IMX PFD clock + * @clk_hw: clock source + * @reg: PFD register address + * @idx: the index of PFD encoded in the register + * + * PFD clock found on i.MX6 series. Each register for PFD has 4 clk_pfd + * data encoded, and member idx is used to specify the one. And each + * register has SET, CLR and TOG registers at offset 0x4 0x8 and 0xc. + */ +struct clk_pfd { + struct clk_hw hw; + void __iomem *reg; + u8 idx; +}; + +#define to_clk_pfd(_hw) container_of(_hw, struct clk_pfd, hw) + +#define SET 0x4 +#define CLR 0x8 +#define OTG 0xc + +static int clk_pfd_enable(struct clk_hw *hw) +{ + struct clk_pfd *pfd = to_clk_pfd(hw); + + writel_relaxed(1 << ((pfd->idx + 1) * 8 - 1), pfd->reg + CLR); + + return 0; +} + +static void clk_pfd_disable(struct clk_hw *hw) +{ + struct clk_pfd *pfd = to_clk_pfd(hw); + + writel_relaxed(1 << ((pfd->idx + 1) * 8 - 1), pfd->reg + SET); +} + +static unsigned long clk_pfd_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_pfd *pfd = to_clk_pfd(hw); + u64 tmp = parent_rate; + u8 frac = (readl_relaxed(pfd->reg) >> (pfd->idx * 8)) & 0x3f; + + tmp *= 18; + do_div(tmp, frac); + + return tmp; +} + +static long clk_pfd_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + u64 tmp = *prate; + u8 frac; + + tmp = tmp * 18 + rate / 2; + do_div(tmp, rate); + frac = tmp; + if (frac < 12) + frac = 12; + else if (frac > 35) + frac = 35; + tmp = *prate; + tmp *= 18; + do_div(tmp, frac); + + return tmp; +} + +static int clk_pfd_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_pfd *pfd = to_clk_pfd(hw); + u64 tmp = parent_rate; + u8 frac; + + tmp = tmp * 18 + rate / 2; + do_div(tmp, rate); + frac = tmp; + if (frac < 12) + frac = 12; + else if (frac > 35) + frac = 35; + + writel_relaxed(0x3f << (pfd->idx * 8), pfd->reg + CLR); + writel_relaxed(frac << (pfd->idx * 8), pfd->reg + SET); + + return 0; +} + +static int clk_pfd_is_enabled(struct clk_hw *hw) +{ + struct clk_pfd *pfd = to_clk_pfd(hw); + + if (readl_relaxed(pfd->reg) & (1 << ((pfd->idx + 1) * 8 - 1))) + return 0; + + return 1; +} + +static const struct clk_ops clk_pfd_ops = { + .enable = clk_pfd_enable, + .disable = clk_pfd_disable, + .recalc_rate = clk_pfd_recalc_rate, + .round_rate = clk_pfd_round_rate, + .set_rate = clk_pfd_set_rate, + .is_enabled = clk_pfd_is_enabled, +}; + +struct clk *imx_clk_pfd(const char *name, const char *parent_name, + void __iomem *reg, u8 idx) +{ + struct clk_pfd *pfd; + struct clk *clk; + struct clk_init_data init; + + pfd = kzalloc(sizeof(*pfd), GFP_KERNEL); + if (!pfd) + return ERR_PTR(-ENOMEM); + + pfd->reg = reg; + pfd->idx = idx; + + init.name = name; + init.ops = &clk_pfd_ops; + init.flags = 0; + init.parent_names = &parent_name; + init.num_parents = 1; + + pfd->hw.init = &init; + + clk = clk_register(NULL, &pfd->hw); + if (IS_ERR(clk)) + kfree(pfd); + + return clk; +} diff --git a/drivers/clk/imx/clk-pllv1.c b/drivers/clk/imx/clk-pllv1.c new file mode 100644 index 000000000000..c34ad8a611dd --- /dev/null +++ b/drivers/clk/imx/clk-pllv1.c @@ -0,0 +1,141 @@ +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/kernel.h> +#include <linux/err.h> + +#include "clk.h" + +/** + * pll v1 + * + * @clk_hw clock source + * @parent the parent clock name + * @base base address of pll registers + * + * PLL clock version 1, found on i.MX1/21/25/27/31/35 + */ + +#define MFN_BITS (10) +#define MFN_SIGN (BIT(MFN_BITS - 1)) +#define MFN_MASK (MFN_SIGN - 1) + +struct clk_pllv1 { + struct clk_hw hw; + void __iomem *base; + enum imx_pllv1_type type; +}; + +#define to_clk_pllv1(clk) (container_of(clk, struct clk_pllv1, clk)) + +static inline bool is_imx1_pllv1(struct clk_pllv1 *pll) +{ + return pll->type == IMX_PLLV1_IMX1; +} + +static inline bool is_imx21_pllv1(struct clk_pllv1 *pll) +{ + return pll->type == IMX_PLLV1_IMX21; +} + +static inline bool is_imx27_pllv1(struct clk_pllv1 *pll) +{ + return pll->type == IMX_PLLV1_IMX27; +} + +static inline bool mfn_is_negative(struct clk_pllv1 *pll, unsigned int mfn) +{ + return !is_imx1_pllv1(pll) && !is_imx21_pllv1(pll) && (mfn & MFN_SIGN); +} + +static unsigned long clk_pllv1_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_pllv1 *pll = to_clk_pllv1(hw); + long long ll; + int mfn_abs; + unsigned int mfi, mfn, mfd, pd; + u32 reg; + unsigned long rate; + + reg = readl(pll->base); + + /* + * Get the resulting clock rate from a PLL register value and the input + * frequency. PLLs with this register layout can be found on i.MX1, + * i.MX21, i.MX27 and i,MX31 + * + * mfi + mfn / (mfd + 1) + * f = 2 * f_ref * -------------------- + * pd + 1 + */ + + mfi = (reg >> 10) & 0xf; + mfn = reg & 0x3ff; + mfd = (reg >> 16) & 0x3ff; + pd = (reg >> 26) & 0xf; + + mfi = mfi <= 5 ? 5 : mfi; + + mfn_abs = mfn; + + /* + * On all i.MXs except i.MX1 and i.MX21 mfn is a 10bit + * 2's complements number. + * On i.MX27 the bit 9 is the sign bit. + */ + if (mfn_is_negative(pll, mfn)) { + if (is_imx27_pllv1(pll)) + mfn_abs = mfn & MFN_MASK; + else + mfn_abs = BIT(MFN_BITS) - mfn; + } + + rate = parent_rate * 2; + rate /= pd + 1; + + ll = (unsigned long long)rate * mfn_abs; + + do_div(ll, mfd + 1); + + if (mfn_is_negative(pll, mfn)) + ll = -ll; + + ll = (rate * mfi) + ll; + + return ll; +} + +static struct clk_ops clk_pllv1_ops = { + .recalc_rate = clk_pllv1_recalc_rate, +}; + +struct clk *imx_clk_pllv1(enum imx_pllv1_type type, const char *name, + const char *parent, void __iomem *base) +{ + struct clk_pllv1 *pll; + struct clk *clk; + struct clk_init_data init; + + pll = kmalloc(sizeof(*pll), GFP_KERNEL); + if (!pll) + return ERR_PTR(-ENOMEM); + + pll->base = base; + pll->type = type; + + init.name = name; + init.ops = &clk_pllv1_ops; + init.flags = 0; + init.parent_names = &parent; + init.num_parents = 1; + + pll->hw.init = &init; + + clk = clk_register(NULL, &pll->hw); + if (IS_ERR(clk)) + kfree(pll); + + return clk; +} diff --git a/drivers/clk/imx/clk-pllv2.c b/drivers/clk/imx/clk-pllv2.c new file mode 100644 index 000000000000..20889d59b44d --- /dev/null +++ b/drivers/clk/imx/clk-pllv2.c @@ -0,0 +1,266 @@ +#include <linux/kernel.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/err.h> + +#include <asm/div64.h> + +#include "clk.h" + +#define to_clk_pllv2(clk) (container_of(clk, struct clk_pllv2, clk)) + +/* PLL Register Offsets */ +#define MXC_PLL_DP_CTL 0x00 +#define MXC_PLL_DP_CONFIG 0x04 +#define MXC_PLL_DP_OP 0x08 +#define MXC_PLL_DP_MFD 0x0C +#define MXC_PLL_DP_MFN 0x10 +#define MXC_PLL_DP_MFNMINUS 0x14 +#define MXC_PLL_DP_MFNPLUS 0x18 +#define MXC_PLL_DP_HFS_OP 0x1C +#define MXC_PLL_DP_HFS_MFD 0x20 +#define MXC_PLL_DP_HFS_MFN 0x24 +#define MXC_PLL_DP_MFN_TOGC 0x28 +#define MXC_PLL_DP_DESTAT 0x2c + +/* PLL Register Bit definitions */ +#define MXC_PLL_DP_CTL_MUL_CTRL 0x2000 +#define MXC_PLL_DP_CTL_DPDCK0_2_EN 0x1000 +#define MXC_PLL_DP_CTL_DPDCK0_2_OFFSET 12 +#define MXC_PLL_DP_CTL_ADE 0x800 +#define MXC_PLL_DP_CTL_REF_CLK_DIV 0x400 +#define MXC_PLL_DP_CTL_REF_CLK_SEL_MASK (3 << 8) +#define MXC_PLL_DP_CTL_REF_CLK_SEL_OFFSET 8 +#define MXC_PLL_DP_CTL_HFSM 0x80 +#define MXC_PLL_DP_CTL_PRE 0x40 +#define MXC_PLL_DP_CTL_UPEN 0x20 +#define MXC_PLL_DP_CTL_RST 0x10 +#define MXC_PLL_DP_CTL_RCP 0x8 +#define MXC_PLL_DP_CTL_PLM 0x4 +#define MXC_PLL_DP_CTL_BRM0 0x2 +#define MXC_PLL_DP_CTL_LRF 0x1 + +#define MXC_PLL_DP_CONFIG_BIST 0x8 +#define MXC_PLL_DP_CONFIG_SJC_CE 0x4 +#define MXC_PLL_DP_CONFIG_AREN 0x2 +#define MXC_PLL_DP_CONFIG_LDREQ 0x1 + +#define MXC_PLL_DP_OP_MFI_OFFSET 4 +#define MXC_PLL_DP_OP_MFI_MASK (0xF << 4) +#define MXC_PLL_DP_OP_PDF_OFFSET 0 +#define MXC_PLL_DP_OP_PDF_MASK 0xF + +#define MXC_PLL_DP_MFD_OFFSET 0 +#define MXC_PLL_DP_MFD_MASK 0x07FFFFFF + +#define MXC_PLL_DP_MFN_OFFSET 0x0 +#define MXC_PLL_DP_MFN_MASK 0x07FFFFFF + +#define MXC_PLL_DP_MFN_TOGC_TOG_DIS (1 << 17) +#define MXC_PLL_DP_MFN_TOGC_TOG_EN (1 << 16) +#define MXC_PLL_DP_MFN_TOGC_CNT_OFFSET 0x0 +#define MXC_PLL_DP_MFN_TOGC_CNT_MASK 0xFFFF + +#define MXC_PLL_DP_DESTAT_TOG_SEL (1 << 31) +#define MXC_PLL_DP_DESTAT_MFN 0x07FFFFFF + +#define MAX_DPLL_WAIT_TRIES 1000 /* 1000 * udelay(1) = 1ms */ + +struct clk_pllv2 { + struct clk_hw hw; + void __iomem *base; +}; + +static unsigned long __clk_pllv2_recalc_rate(unsigned long parent_rate, + u32 dp_ctl, u32 dp_op, u32 dp_mfd, u32 dp_mfn) +{ + long mfi, mfn, mfd, pdf, ref_clk, mfn_abs; + unsigned long dbl; + s64 temp; + + dbl = dp_ctl & MXC_PLL_DP_CTL_DPDCK0_2_EN; + + pdf = dp_op & MXC_PLL_DP_OP_PDF_MASK; + mfi = (dp_op & MXC_PLL_DP_OP_MFI_MASK) >> MXC_PLL_DP_OP_MFI_OFFSET; + mfi = (mfi <= 5) ? 5 : mfi; + mfd = dp_mfd & MXC_PLL_DP_MFD_MASK; + mfn = mfn_abs = dp_mfn & MXC_PLL_DP_MFN_MASK; + /* Sign extend to 32-bits */ + if (mfn >= 0x04000000) { + mfn |= 0xFC000000; + mfn_abs = -mfn; + } + + ref_clk = 2 * parent_rate; + if (dbl != 0) + ref_clk *= 2; + + ref_clk /= (pdf + 1); + temp = (u64) ref_clk * mfn_abs; + do_div(temp, mfd + 1); + if (mfn < 0) + temp = -temp; + temp = (ref_clk * mfi) + temp; + + return temp; +} + +static unsigned long clk_pllv2_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + u32 dp_op, dp_mfd, dp_mfn, dp_ctl; + void __iomem *pllbase; + struct clk_pllv2 *pll = to_clk_pllv2(hw); + + pllbase = pll->base; + + dp_ctl = __raw_readl(pllbase + MXC_PLL_DP_CTL); + dp_op = __raw_readl(pllbase + MXC_PLL_DP_OP); + dp_mfd = __raw_readl(pllbase + MXC_PLL_DP_MFD); + dp_mfn = __raw_readl(pllbase + MXC_PLL_DP_MFN); + + return __clk_pllv2_recalc_rate(parent_rate, dp_ctl, dp_op, dp_mfd, dp_mfn); +} + +static int __clk_pllv2_set_rate(unsigned long rate, unsigned long parent_rate, + u32 *dp_op, u32 *dp_mfd, u32 *dp_mfn) +{ + u32 reg; + long mfi, pdf, mfn, mfd = 999999; + s64 temp64; + unsigned long quad_parent_rate; + + quad_parent_rate = 4 * parent_rate; + pdf = mfi = -1; + while (++pdf < 16 && mfi < 5) + mfi = rate * (pdf+1) / quad_parent_rate; + if (mfi > 15) + return -EINVAL; + pdf--; + + temp64 = rate * (pdf + 1) - quad_parent_rate * mfi; + do_div(temp64, quad_parent_rate / 1000000); + mfn = (long)temp64; + + reg = mfi << 4 | pdf; + + *dp_op = reg; + *dp_mfd = mfd; + *dp_mfn = mfn; + + return 0; +} + +static int clk_pllv2_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_pllv2 *pll = to_clk_pllv2(hw); + void __iomem *pllbase; + u32 dp_ctl, dp_op, dp_mfd, dp_mfn; + int ret; + + pllbase = pll->base; + + + ret = __clk_pllv2_set_rate(rate, parent_rate, &dp_op, &dp_mfd, &dp_mfn); + if (ret) + return ret; + + dp_ctl = __raw_readl(pllbase + MXC_PLL_DP_CTL); + /* use dpdck0_2 */ + __raw_writel(dp_ctl | 0x1000L, pllbase + MXC_PLL_DP_CTL); + + __raw_writel(dp_op, pllbase + MXC_PLL_DP_OP); + __raw_writel(dp_mfd, pllbase + MXC_PLL_DP_MFD); + __raw_writel(dp_mfn, pllbase + MXC_PLL_DP_MFN); + + return 0; +} + +static long clk_pllv2_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + u32 dp_op, dp_mfd, dp_mfn; + + __clk_pllv2_set_rate(rate, *prate, &dp_op, &dp_mfd, &dp_mfn); + return __clk_pllv2_recalc_rate(*prate, MXC_PLL_DP_CTL_DPDCK0_2_EN, + dp_op, dp_mfd, dp_mfn); +} + +static int clk_pllv2_prepare(struct clk_hw *hw) +{ + struct clk_pllv2 *pll = to_clk_pllv2(hw); + u32 reg; + void __iomem *pllbase; + int i = 0; + + pllbase = pll->base; + reg = __raw_readl(pllbase + MXC_PLL_DP_CTL) | MXC_PLL_DP_CTL_UPEN; + __raw_writel(reg, pllbase + MXC_PLL_DP_CTL); + + /* Wait for lock */ + do { + reg = __raw_readl(pllbase + MXC_PLL_DP_CTL); + if (reg & MXC_PLL_DP_CTL_LRF) + break; + + udelay(1); + } while (++i < MAX_DPLL_WAIT_TRIES); + + if (i == MAX_DPLL_WAIT_TRIES) { + pr_err("MX5: pll locking failed\n"); + return -EINVAL; + } + + return 0; +} + +static void clk_pllv2_unprepare(struct clk_hw *hw) +{ + struct clk_pllv2 *pll = to_clk_pllv2(hw); + u32 reg; + void __iomem *pllbase; + + pllbase = pll->base; + reg = __raw_readl(pllbase + MXC_PLL_DP_CTL) & ~MXC_PLL_DP_CTL_UPEN; + __raw_writel(reg, pllbase + MXC_PLL_DP_CTL); +} + +static struct clk_ops clk_pllv2_ops = { + .prepare = clk_pllv2_prepare, + .unprepare = clk_pllv2_unprepare, + .recalc_rate = clk_pllv2_recalc_rate, + .round_rate = clk_pllv2_round_rate, + .set_rate = clk_pllv2_set_rate, +}; + +struct clk *imx_clk_pllv2(const char *name, const char *parent, + void __iomem *base) +{ + struct clk_pllv2 *pll; + struct clk *clk; + struct clk_init_data init; + + pll = kzalloc(sizeof(*pll), GFP_KERNEL); + if (!pll) + return ERR_PTR(-ENOMEM); + + pll->base = base; + + init.name = name; + init.ops = &clk_pllv2_ops; + init.flags = 0; + init.parent_names = &parent; + init.num_parents = 1; + + pll->hw.init = &init; + + clk = clk_register(NULL, &pll->hw); + if (IS_ERR(clk)) + kfree(pll); + + return clk; +} diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c new file mode 100644 index 000000000000..f0d15fb9d783 --- /dev/null +++ b/drivers/clk/imx/clk-pllv3.c @@ -0,0 +1,338 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * Copyright 2012 Linaro Ltd. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/err.h> +#include "clk.h" + +#define PLL_NUM_OFFSET 0x10 +#define PLL_DENOM_OFFSET 0x20 + +#define BM_PLL_POWER (0x1 << 12) +#define BM_PLL_LOCK (0x1 << 31) +#define IMX7_ENET_PLL_POWER (0x1 << 5) + +/** + * struct clk_pllv3 - IMX PLL clock version 3 + * @clk_hw: clock source + * @base: base address of PLL registers + * @powerup_set: set POWER bit to power up the PLL + * @powerdown: pll powerdown offset bit + * @div_mask: mask of divider bits + * @div_shift: shift of divider bits + * + * IMX PLL clock version 3, found on i.MX6 series. Divider for pllv3 + * is actually a multiplier, and always sits at bit 0. + */ +struct clk_pllv3 { + struct clk_hw hw; + void __iomem *base; + bool powerup_set; + u32 powerdown; + u32 div_mask; + u32 div_shift; +}; + +#define to_clk_pllv3(_hw) container_of(_hw, struct clk_pllv3, hw) + +static int clk_pllv3_wait_lock(struct clk_pllv3 *pll) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(10); + u32 val = readl_relaxed(pll->base) & pll->powerdown; + + /* No need to wait for lock when pll is not powered up */ + if ((pll->powerup_set && !val) || (!pll->powerup_set && val)) + return 0; + + /* Wait for PLL to lock */ + do { + if (readl_relaxed(pll->base) & BM_PLL_LOCK) + break; + if (time_after(jiffies, timeout)) + break; + usleep_range(50, 500); + } while (1); + + return readl_relaxed(pll->base) & BM_PLL_LOCK ? 0 : -ETIMEDOUT; +} + +static int clk_pllv3_prepare(struct clk_hw *hw) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 val; + + val = readl_relaxed(pll->base); + if (pll->powerup_set) + val |= BM_PLL_POWER; + else + val &= ~BM_PLL_POWER; + writel_relaxed(val, pll->base); + + return clk_pllv3_wait_lock(pll); +} + +static void clk_pllv3_unprepare(struct clk_hw *hw) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 val; + + val = readl_relaxed(pll->base); + if (pll->powerup_set) + val &= ~BM_PLL_POWER; + else + val |= BM_PLL_POWER; + writel_relaxed(val, pll->base); +} + +static unsigned long clk_pllv3_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 div = (readl_relaxed(pll->base) >> pll->div_shift) & pll->div_mask; + + return (div == 1) ? parent_rate * 22 : parent_rate * 20; +} + +static long clk_pllv3_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + unsigned long parent_rate = *prate; + + return (rate >= parent_rate * 22) ? parent_rate * 22 : + parent_rate * 20; +} + +static int clk_pllv3_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 val, div; + + if (rate == parent_rate * 22) + div = 1; + else if (rate == parent_rate * 20) + div = 0; + else + return -EINVAL; + + val = readl_relaxed(pll->base); + val &= ~(pll->div_mask << pll->div_shift); + val |= (div << pll->div_shift); + writel_relaxed(val, pll->base); + + return clk_pllv3_wait_lock(pll); +} + +static const struct clk_ops clk_pllv3_ops = { + .prepare = clk_pllv3_prepare, + .unprepare = clk_pllv3_unprepare, + .recalc_rate = clk_pllv3_recalc_rate, + .round_rate = clk_pllv3_round_rate, + .set_rate = clk_pllv3_set_rate, +}; + +static unsigned long clk_pllv3_sys_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 div = readl_relaxed(pll->base) & pll->div_mask; + + return parent_rate * div / 2; +} + +static long clk_pllv3_sys_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + unsigned long parent_rate = *prate; + unsigned long min_rate = parent_rate * 54 / 2; + unsigned long max_rate = parent_rate * 108 / 2; + u32 div; + + if (rate > max_rate) + rate = max_rate; + else if (rate < min_rate) + rate = min_rate; + div = rate * 2 / parent_rate; + + return parent_rate * div / 2; +} + +static int clk_pllv3_sys_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + unsigned long min_rate = parent_rate * 54 / 2; + unsigned long max_rate = parent_rate * 108 / 2; + u32 val, div; + + if (rate < min_rate || rate > max_rate) + return -EINVAL; + + div = rate * 2 / parent_rate; + val = readl_relaxed(pll->base); + val &= ~pll->div_mask; + val |= div; + writel_relaxed(val, pll->base); + + return clk_pllv3_wait_lock(pll); +} + +static const struct clk_ops clk_pllv3_sys_ops = { + .prepare = clk_pllv3_prepare, + .unprepare = clk_pllv3_unprepare, + .recalc_rate = clk_pllv3_sys_recalc_rate, + .round_rate = clk_pllv3_sys_round_rate, + .set_rate = clk_pllv3_sys_set_rate, +}; + +static unsigned long clk_pllv3_av_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + u32 mfn = readl_relaxed(pll->base + PLL_NUM_OFFSET); + u32 mfd = readl_relaxed(pll->base + PLL_DENOM_OFFSET); + u32 div = readl_relaxed(pll->base) & pll->div_mask; + + return (parent_rate * div) + ((parent_rate / mfd) * mfn); +} + +static long clk_pllv3_av_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + unsigned long parent_rate = *prate; + unsigned long min_rate = parent_rate * 27; + unsigned long max_rate = parent_rate * 54; + u32 div; + u32 mfn, mfd = 1000000; + u64 temp64; + + if (rate > max_rate) + rate = max_rate; + else if (rate < min_rate) + rate = min_rate; + + div = rate / parent_rate; + temp64 = (u64) (rate - div * parent_rate); + temp64 *= mfd; + do_div(temp64, parent_rate); + mfn = temp64; + + return parent_rate * div + parent_rate / mfd * mfn; +} + +static int clk_pllv3_av_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_pllv3 *pll = to_clk_pllv3(hw); + unsigned long min_rate = parent_rate * 27; + unsigned long max_rate = parent_rate * 54; + u32 val, div; + u32 mfn, mfd = 1000000; + u64 temp64; + + if (rate < min_rate || rate > max_rate) + return -EINVAL; + + div = rate / parent_rate; + temp64 = (u64) (rate - div * parent_rate); + temp64 *= mfd; + do_div(temp64, parent_rate); + mfn = temp64; + + val = readl_relaxed(pll->base); + val &= ~pll->div_mask; + val |= div; + writel_relaxed(val, pll->base); + writel_relaxed(mfn, pll->base + PLL_NUM_OFFSET); + writel_relaxed(mfd, pll->base + PLL_DENOM_OFFSET); + + return clk_pllv3_wait_lock(pll); +} + +static const struct clk_ops clk_pllv3_av_ops = { + .prepare = clk_pllv3_prepare, + .unprepare = clk_pllv3_unprepare, + .recalc_rate = clk_pllv3_av_recalc_rate, + .round_rate = clk_pllv3_av_round_rate, + .set_rate = clk_pllv3_av_set_rate, +}; + +static unsigned long clk_pllv3_enet_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + return 500000000; +} + +static const struct clk_ops clk_pllv3_enet_ops = { + .prepare = clk_pllv3_prepare, + .unprepare = clk_pllv3_unprepare, + .recalc_rate = clk_pllv3_enet_recalc_rate, +}; + +struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name, + const char *parent_name, void __iomem *base, + u32 div_mask) +{ + struct clk_pllv3 *pll; + const struct clk_ops *ops; + struct clk *clk; + struct clk_init_data init; + + pll = kzalloc(sizeof(*pll), GFP_KERNEL); + if (!pll) + return ERR_PTR(-ENOMEM); + + pll->powerdown = BM_PLL_POWER; + + switch (type) { + case IMX_PLLV3_SYS: + ops = &clk_pllv3_sys_ops; + break; + case IMX_PLLV3_USB_VF610: + pll->div_shift = 1; + case IMX_PLLV3_USB: + ops = &clk_pllv3_ops; + pll->powerup_set = true; + break; + case IMX_PLLV3_AV: + ops = &clk_pllv3_av_ops; + break; + case IMX_PLLV3_ENET_IMX7: + pll->powerdown = IMX7_ENET_PLL_POWER; + case IMX_PLLV3_ENET: + ops = &clk_pllv3_enet_ops; + break; + default: + ops = &clk_pllv3_ops; + } + pll->base = base; + pll->div_mask = div_mask; + + init.name = name; + init.ops = ops; + init.flags = 0; + init.parent_names = &parent_name; + init.num_parents = 1; + + pll->hw.init = &init; + + clk = clk_register(NULL, &pll->hw); + if (IS_ERR(clk)) + kfree(pll); + + return clk; +} diff --git a/drivers/clk/imx/clk-vf610.c b/drivers/clk/imx/clk-vf610.c new file mode 100644 index 000000000000..bff45ead7389 --- /dev/null +++ b/drivers/clk/imx/clk-vf610.c @@ -0,0 +1,416 @@ +/* + * Copyright 2012-2013 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/of_address.h> +#include <linux/clk.h> +#include <dt-bindings/clock/vf610-clock.h> + +#include "clk.h" + +#define CCM_CCR (ccm_base + 0x00) +#define CCM_CSR (ccm_base + 0x04) +#define CCM_CCSR (ccm_base + 0x08) +#define CCM_CACRR (ccm_base + 0x0c) +#define CCM_CSCMR1 (ccm_base + 0x10) +#define CCM_CSCDR1 (ccm_base + 0x14) +#define CCM_CSCDR2 (ccm_base + 0x18) +#define CCM_CSCDR3 (ccm_base + 0x1c) +#define CCM_CSCMR2 (ccm_base + 0x20) +#define CCM_CSCDR4 (ccm_base + 0x24) +#define CCM_CLPCR (ccm_base + 0x2c) +#define CCM_CISR (ccm_base + 0x30) +#define CCM_CIMR (ccm_base + 0x34) +#define CCM_CGPR (ccm_base + 0x3c) +#define CCM_CCGR0 (ccm_base + 0x40) +#define CCM_CCGR1 (ccm_base + 0x44) +#define CCM_CCGR2 (ccm_base + 0x48) +#define CCM_CCGR3 (ccm_base + 0x4c) +#define CCM_CCGR4 (ccm_base + 0x50) +#define CCM_CCGR5 (ccm_base + 0x54) +#define CCM_CCGR6 (ccm_base + 0x58) +#define CCM_CCGR7 (ccm_base + 0x5c) +#define CCM_CCGR8 (ccm_base + 0x60) +#define CCM_CCGR9 (ccm_base + 0x64) +#define CCM_CCGR10 (ccm_base + 0x68) +#define CCM_CCGR11 (ccm_base + 0x6c) +#define CCM_CMEOR0 (ccm_base + 0x70) +#define CCM_CMEOR1 (ccm_base + 0x74) +#define CCM_CMEOR2 (ccm_base + 0x78) +#define CCM_CMEOR3 (ccm_base + 0x7c) +#define CCM_CMEOR4 (ccm_base + 0x80) +#define CCM_CMEOR5 (ccm_base + 0x84) +#define CCM_CPPDSR (ccm_base + 0x88) +#define CCM_CCOWR (ccm_base + 0x8c) +#define CCM_CCPGR0 (ccm_base + 0x90) +#define CCM_CCPGR1 (ccm_base + 0x94) +#define CCM_CCPGR2 (ccm_base + 0x98) +#define CCM_CCPGR3 (ccm_base + 0x9c) + +#define CCM_CCGRx_CGn(n) ((n) * 2) + +#define PFD_PLL1_BASE (anatop_base + 0x2b0) +#define PFD_PLL2_BASE (anatop_base + 0x100) +#define PFD_PLL3_BASE (anatop_base + 0xf0) +#define PLL1_CTRL (anatop_base + 0x270) +#define PLL2_CTRL (anatop_base + 0x30) +#define PLL3_CTRL (anatop_base + 0x10) +#define PLL4_CTRL (anatop_base + 0x70) +#define PLL5_CTRL (anatop_base + 0xe0) +#define PLL6_CTRL (anatop_base + 0xa0) +#define PLL7_CTRL (anatop_base + 0x20) +#define ANA_MISC1 (anatop_base + 0x160) + +static void __iomem *anatop_base; +static void __iomem *ccm_base; + +/* sources for multiplexer clocks, this is used multiple times */ +static const char *fast_sels[] = { "firc", "fxosc", }; +static const char *slow_sels[] = { "sirc_32k", "sxosc", }; +static const char *pll1_sels[] = { "pll1_sys", "pll1_pfd1", "pll1_pfd2", "pll1_pfd3", "pll1_pfd4", }; +static const char *pll2_sels[] = { "pll2_bus", "pll2_pfd1", "pll2_pfd2", "pll2_pfd3", "pll2_pfd4", }; +static const char *pll_bypass_src_sels[] = { "fast_clk_sel", "lvds1_in", }; +static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", }; +static const char *pll2_bypass_sels[] = { "pll2", "pll2_bypass_src", }; +static const char *pll3_bypass_sels[] = { "pll3", "pll3_bypass_src", }; +static const char *pll4_bypass_sels[] = { "pll4", "pll4_bypass_src", }; +static const char *pll5_bypass_sels[] = { "pll5", "pll5_bypass_src", }; +static const char *pll6_bypass_sels[] = { "pll6", "pll6_bypass_src", }; +static const char *pll7_bypass_sels[] = { "pll7", "pll7_bypass_src", }; +static const char *sys_sels[] = { "fast_clk_sel", "slow_clk_sel", "pll2_pfd_sel", "pll2_bus", "pll1_pfd_sel", "pll3_usb_otg", }; +static const char *ddr_sels[] = { "pll2_pfd2", "sys_sel", }; +static const char *rmii_sels[] = { "enet_ext", "audio_ext", "enet_50m", "enet_25m", }; +static const char *enet_ts_sels[] = { "enet_ext", "fxosc", "audio_ext", "usb", "enet_ts", "enet_25m", "enet_50m", }; +static const char *esai_sels[] = { "audio_ext", "mlb", "spdif_rx", "pll4_audio_div", }; +static const char *sai_sels[] = { "audio_ext", "mlb", "spdif_rx", "pll4_audio_div", }; +static const char *nfc_sels[] = { "platform_bus", "pll1_pfd1", "pll3_pfd1", "pll3_pfd3", }; +static const char *qspi_sels[] = { "pll3_usb_otg", "pll3_pfd4", "pll2_pfd4", "pll1_pfd4", }; +static const char *esdhc_sels[] = { "pll3_usb_otg", "pll3_pfd3", "pll1_pfd3", "platform_bus", }; +static const char *dcu_sels[] = { "pll1_pfd2", "pll3_usb_otg", }; +static const char *gpu_sels[] = { "pll2_pfd2", "pll3_pfd2", }; +static const char *vadc_sels[] = { "pll6_video_div", "pll3_usb_otg_div", "pll3_usb_otg", }; +/* FTM counter clock source, not module clock */ +static const char *ftm_ext_sels[] = {"sirc_128k", "sxosc", "fxosc_half", "audio_ext", }; +static const char *ftm_fix_sels[] = { "sxosc", "ipg_bus", }; + + +static struct clk_div_table pll4_audio_div_table[] = { + { .val = 0, .div = 1 }, + { .val = 1, .div = 2 }, + { .val = 2, .div = 6 }, + { .val = 3, .div = 8 }, + { .val = 4, .div = 10 }, + { .val = 5, .div = 12 }, + { .val = 6, .div = 14 }, + { .val = 7, .div = 16 }, + { } +}; + +static struct clk *clk[VF610_CLK_END]; +static struct clk_onecell_data clk_data; + +static unsigned int const clks_init_on[] __initconst = { + VF610_CLK_SYS_BUS, + VF610_CLK_DDR_SEL, + VF610_CLK_DAP, +}; + +static struct clk * __init vf610_get_fixed_clock( + struct device_node *ccm_node, const char *name) +{ + struct clk *clk = of_clk_get_by_name(ccm_node, name); + + /* Backward compatibility if device tree is missing clks assignments */ + if (IS_ERR(clk)) + clk = imx_obtain_fixed_clock(name, 0); + return clk; +}; + +static void __init vf610_clocks_init(struct device_node *ccm_node) +{ + struct device_node *np; + int i; + + clk[VF610_CLK_DUMMY] = imx_clk_fixed("dummy", 0); + clk[VF610_CLK_SIRC_128K] = imx_clk_fixed("sirc_128k", 128000); + clk[VF610_CLK_SIRC_32K] = imx_clk_fixed("sirc_32k", 32000); + clk[VF610_CLK_FIRC] = imx_clk_fixed("firc", 24000000); + + clk[VF610_CLK_SXOSC] = vf610_get_fixed_clock(ccm_node, "sxosc"); + clk[VF610_CLK_FXOSC] = vf610_get_fixed_clock(ccm_node, "fxosc"); + clk[VF610_CLK_AUDIO_EXT] = vf610_get_fixed_clock(ccm_node, "audio_ext"); + clk[VF610_CLK_ENET_EXT] = vf610_get_fixed_clock(ccm_node, "enet_ext"); + + /* Clock source from external clock via LVDs PAD */ + clk[VF610_CLK_ANACLK1] = vf610_get_fixed_clock(ccm_node, "anaclk1"); + + clk[VF610_CLK_FXOSC_HALF] = imx_clk_fixed_factor("fxosc_half", "fxosc", 1, 2); + + np = of_find_compatible_node(NULL, NULL, "fsl,vf610-anatop"); + anatop_base = of_iomap(np, 0); + BUG_ON(!anatop_base); + + np = ccm_node; + ccm_base = of_iomap(np, 0); + BUG_ON(!ccm_base); + + clk[VF610_CLK_SLOW_CLK_SEL] = imx_clk_mux("slow_clk_sel", CCM_CCSR, 4, 1, slow_sels, ARRAY_SIZE(slow_sels)); + clk[VF610_CLK_FASK_CLK_SEL] = imx_clk_mux("fast_clk_sel", CCM_CCSR, 5, 1, fast_sels, ARRAY_SIZE(fast_sels)); + + clk[VF610_CLK_PLL1_BYPASS_SRC] = imx_clk_mux("pll1_bypass_src", PLL1_CTRL, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[VF610_CLK_PLL2_BYPASS_SRC] = imx_clk_mux("pll2_bypass_src", PLL2_CTRL, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[VF610_CLK_PLL3_BYPASS_SRC] = imx_clk_mux("pll3_bypass_src", PLL3_CTRL, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[VF610_CLK_PLL4_BYPASS_SRC] = imx_clk_mux("pll4_bypass_src", PLL4_CTRL, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[VF610_CLK_PLL5_BYPASS_SRC] = imx_clk_mux("pll5_bypass_src", PLL5_CTRL, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[VF610_CLK_PLL6_BYPASS_SRC] = imx_clk_mux("pll6_bypass_src", PLL6_CTRL, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clk[VF610_CLK_PLL7_BYPASS_SRC] = imx_clk_mux("pll7_bypass_src", PLL7_CTRL, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + + clk[VF610_CLK_PLL1] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll1", "pll1_bypass_src", PLL1_CTRL, 0x1); + clk[VF610_CLK_PLL2] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2", "pll2_bypass_src", PLL2_CTRL, 0x1); + clk[VF610_CLK_PLL3] = imx_clk_pllv3(IMX_PLLV3_USB_VF610, "pll3", "pll3_bypass_src", PLL3_CTRL, 0x2); + clk[VF610_CLK_PLL4] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4", "pll4_bypass_src", PLL4_CTRL, 0x7f); + clk[VF610_CLK_PLL5] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll5", "pll5_bypass_src", PLL5_CTRL, 0x3); + clk[VF610_CLK_PLL6] = imx_clk_pllv3(IMX_PLLV3_AV, "pll6", "pll6_bypass_src", PLL6_CTRL, 0x7f); + clk[VF610_CLK_PLL7] = imx_clk_pllv3(IMX_PLLV3_USB_VF610, "pll7", "pll7_bypass_src", PLL7_CTRL, 0x2); + + clk[VF610_PLL1_BYPASS] = imx_clk_mux_flags("pll1_bypass", PLL1_CTRL, 16, 1, pll1_bypass_sels, ARRAY_SIZE(pll1_bypass_sels), CLK_SET_RATE_PARENT); + clk[VF610_PLL2_BYPASS] = imx_clk_mux_flags("pll2_bypass", PLL2_CTRL, 16, 1, pll2_bypass_sels, ARRAY_SIZE(pll2_bypass_sels), CLK_SET_RATE_PARENT); + clk[VF610_PLL3_BYPASS] = imx_clk_mux_flags("pll3_bypass", PLL3_CTRL, 16, 1, pll3_bypass_sels, ARRAY_SIZE(pll3_bypass_sels), CLK_SET_RATE_PARENT); + clk[VF610_PLL4_BYPASS] = imx_clk_mux_flags("pll4_bypass", PLL4_CTRL, 16, 1, pll4_bypass_sels, ARRAY_SIZE(pll4_bypass_sels), CLK_SET_RATE_PARENT); + clk[VF610_PLL5_BYPASS] = imx_clk_mux_flags("pll5_bypass", PLL5_CTRL, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels), CLK_SET_RATE_PARENT); + clk[VF610_PLL6_BYPASS] = imx_clk_mux_flags("pll6_bypass", PLL6_CTRL, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels), CLK_SET_RATE_PARENT); + clk[VF610_PLL7_BYPASS] = imx_clk_mux_flags("pll7_bypass", PLL7_CTRL, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels), CLK_SET_RATE_PARENT); + + /* Do not bypass PLLs initially */ + clk_set_parent(clk[VF610_PLL1_BYPASS], clk[VF610_CLK_PLL1]); + clk_set_parent(clk[VF610_PLL2_BYPASS], clk[VF610_CLK_PLL2]); + clk_set_parent(clk[VF610_PLL3_BYPASS], clk[VF610_CLK_PLL3]); + clk_set_parent(clk[VF610_PLL4_BYPASS], clk[VF610_CLK_PLL4]); + clk_set_parent(clk[VF610_PLL5_BYPASS], clk[VF610_CLK_PLL5]); + clk_set_parent(clk[VF610_PLL6_BYPASS], clk[VF610_CLK_PLL6]); + clk_set_parent(clk[VF610_PLL7_BYPASS], clk[VF610_CLK_PLL7]); + + clk[VF610_CLK_PLL1_SYS] = imx_clk_gate("pll1_sys", "pll1_bypass", PLL1_CTRL, 13); + clk[VF610_CLK_PLL2_BUS] = imx_clk_gate("pll2_bus", "pll2_bypass", PLL2_CTRL, 13); + clk[VF610_CLK_PLL3_USB_OTG] = imx_clk_gate("pll3_usb_otg", "pll3_bypass", PLL3_CTRL, 13); + clk[VF610_CLK_PLL4_AUDIO] = imx_clk_gate("pll4_audio", "pll4_bypass", PLL4_CTRL, 13); + clk[VF610_CLK_PLL5_ENET] = imx_clk_gate("pll5_enet", "pll5_bypass", PLL5_CTRL, 13); + clk[VF610_CLK_PLL6_VIDEO] = imx_clk_gate("pll6_video", "pll6_bypass", PLL6_CTRL, 13); + clk[VF610_CLK_PLL7_USB_HOST] = imx_clk_gate("pll7_usb_host", "pll7_bypass", PLL7_CTRL, 13); + + clk[VF610_CLK_LVDS1_IN] = imx_clk_gate_exclusive("lvds1_in", "anaclk1", ANA_MISC1, 12, BIT(10)); + + clk[VF610_CLK_PLL1_PFD1] = imx_clk_pfd("pll1_pfd1", "pll1_sys", PFD_PLL1_BASE, 0); + clk[VF610_CLK_PLL1_PFD2] = imx_clk_pfd("pll1_pfd2", "pll1_sys", PFD_PLL1_BASE, 1); + clk[VF610_CLK_PLL1_PFD3] = imx_clk_pfd("pll1_pfd3", "pll1_sys", PFD_PLL1_BASE, 2); + clk[VF610_CLK_PLL1_PFD4] = imx_clk_pfd("pll1_pfd4", "pll1_sys", PFD_PLL1_BASE, 3); + + clk[VF610_CLK_PLL2_PFD1] = imx_clk_pfd("pll2_pfd1", "pll2_bus", PFD_PLL2_BASE, 0); + clk[VF610_CLK_PLL2_PFD2] = imx_clk_pfd("pll2_pfd2", "pll2_bus", PFD_PLL2_BASE, 1); + clk[VF610_CLK_PLL2_PFD3] = imx_clk_pfd("pll2_pfd3", "pll2_bus", PFD_PLL2_BASE, 2); + clk[VF610_CLK_PLL2_PFD4] = imx_clk_pfd("pll2_pfd4", "pll2_bus", PFD_PLL2_BASE, 3); + + clk[VF610_CLK_PLL3_PFD1] = imx_clk_pfd("pll3_pfd1", "pll3_usb_otg", PFD_PLL3_BASE, 0); + clk[VF610_CLK_PLL3_PFD2] = imx_clk_pfd("pll3_pfd2", "pll3_usb_otg", PFD_PLL3_BASE, 1); + clk[VF610_CLK_PLL3_PFD3] = imx_clk_pfd("pll3_pfd3", "pll3_usb_otg", PFD_PLL3_BASE, 2); + clk[VF610_CLK_PLL3_PFD4] = imx_clk_pfd("pll3_pfd4", "pll3_usb_otg", PFD_PLL3_BASE, 3); + + clk[VF610_CLK_PLL1_PFD_SEL] = imx_clk_mux("pll1_pfd_sel", CCM_CCSR, 16, 3, pll1_sels, 5); + clk[VF610_CLK_PLL2_PFD_SEL] = imx_clk_mux("pll2_pfd_sel", CCM_CCSR, 19, 3, pll2_sels, 5); + clk[VF610_CLK_SYS_SEL] = imx_clk_mux("sys_sel", CCM_CCSR, 0, 3, sys_sels, ARRAY_SIZE(sys_sels)); + clk[VF610_CLK_DDR_SEL] = imx_clk_mux("ddr_sel", CCM_CCSR, 6, 1, ddr_sels, ARRAY_SIZE(ddr_sels)); + clk[VF610_CLK_SYS_BUS] = imx_clk_divider("sys_bus", "sys_sel", CCM_CACRR, 0, 3); + clk[VF610_CLK_PLATFORM_BUS] = imx_clk_divider("platform_bus", "sys_bus", CCM_CACRR, 3, 3); + clk[VF610_CLK_IPG_BUS] = imx_clk_divider("ipg_bus", "platform_bus", CCM_CACRR, 11, 2); + + clk[VF610_CLK_PLL3_MAIN_DIV] = imx_clk_divider("pll3_usb_otg_div", "pll3_usb_otg", CCM_CACRR, 20, 1); + clk[VF610_CLK_PLL4_MAIN_DIV] = clk_register_divider_table(NULL, "pll4_audio_div", "pll4_audio", 0, CCM_CACRR, 6, 3, 0, pll4_audio_div_table, &imx_ccm_lock); + clk[VF610_CLK_PLL6_MAIN_DIV] = imx_clk_divider("pll6_video_div", "pll6_video", CCM_CACRR, 21, 1); + + clk[VF610_CLK_USBPHY0] = imx_clk_gate("usbphy0", "pll3_usb_otg", PLL3_CTRL, 6); + clk[VF610_CLK_USBPHY1] = imx_clk_gate("usbphy1", "pll7_usb_host", PLL7_CTRL, 6); + + clk[VF610_CLK_USBC0] = imx_clk_gate2("usbc0", "ipg_bus", CCM_CCGR1, CCM_CCGRx_CGn(4)); + clk[VF610_CLK_USBC1] = imx_clk_gate2("usbc1", "ipg_bus", CCM_CCGR7, CCM_CCGRx_CGn(4)); + + clk[VF610_CLK_QSPI0_SEL] = imx_clk_mux("qspi0_sel", CCM_CSCMR1, 22, 2, qspi_sels, 4); + clk[VF610_CLK_QSPI0_EN] = imx_clk_gate("qspi0_en", "qspi0_sel", CCM_CSCDR3, 4); + clk[VF610_CLK_QSPI0_X4_DIV] = imx_clk_divider("qspi0_x4", "qspi0_en", CCM_CSCDR3, 0, 2); + clk[VF610_CLK_QSPI0_X2_DIV] = imx_clk_divider("qspi0_x2", "qspi0_x4", CCM_CSCDR3, 2, 1); + clk[VF610_CLK_QSPI0_X1_DIV] = imx_clk_divider("qspi0_x1", "qspi0_x2", CCM_CSCDR3, 3, 1); + clk[VF610_CLK_QSPI0] = imx_clk_gate2("qspi0", "qspi0_x1", CCM_CCGR2, CCM_CCGRx_CGn(4)); + + clk[VF610_CLK_QSPI1_SEL] = imx_clk_mux("qspi1_sel", CCM_CSCMR1, 24, 2, qspi_sels, 4); + clk[VF610_CLK_QSPI1_EN] = imx_clk_gate("qspi1_en", "qspi1_sel", CCM_CSCDR3, 12); + clk[VF610_CLK_QSPI1_X4_DIV] = imx_clk_divider("qspi1_x4", "qspi1_en", CCM_CSCDR3, 8, 2); + clk[VF610_CLK_QSPI1_X2_DIV] = imx_clk_divider("qspi1_x2", "qspi1_x4", CCM_CSCDR3, 10, 1); + clk[VF610_CLK_QSPI1_X1_DIV] = imx_clk_divider("qspi1_x1", "qspi1_x2", CCM_CSCDR3, 11, 1); + clk[VF610_CLK_QSPI1] = imx_clk_gate2("qspi1", "qspi1_x1", CCM_CCGR8, CCM_CCGRx_CGn(4)); + + clk[VF610_CLK_ENET_50M] = imx_clk_fixed_factor("enet_50m", "pll5_enet", 1, 10); + clk[VF610_CLK_ENET_25M] = imx_clk_fixed_factor("enet_25m", "pll5_enet", 1, 20); + clk[VF610_CLK_ENET_SEL] = imx_clk_mux("enet_sel", CCM_CSCMR2, 4, 2, rmii_sels, 4); + clk[VF610_CLK_ENET_TS_SEL] = imx_clk_mux("enet_ts_sel", CCM_CSCMR2, 0, 3, enet_ts_sels, 7); + clk[VF610_CLK_ENET] = imx_clk_gate("enet", "enet_sel", CCM_CSCDR1, 24); + clk[VF610_CLK_ENET_TS] = imx_clk_gate("enet_ts", "enet_ts_sel", CCM_CSCDR1, 23); + clk[VF610_CLK_ENET0] = imx_clk_gate2("enet0", "ipg_bus", CCM_CCGR9, CCM_CCGRx_CGn(0)); + clk[VF610_CLK_ENET1] = imx_clk_gate2("enet1", "ipg_bus", CCM_CCGR9, CCM_CCGRx_CGn(1)); + + clk[VF610_CLK_PIT] = imx_clk_gate2("pit", "ipg_bus", CCM_CCGR1, CCM_CCGRx_CGn(7)); + + clk[VF610_CLK_UART0] = imx_clk_gate2("uart0", "ipg_bus", CCM_CCGR0, CCM_CCGRx_CGn(7)); + clk[VF610_CLK_UART1] = imx_clk_gate2("uart1", "ipg_bus", CCM_CCGR0, CCM_CCGRx_CGn(8)); + clk[VF610_CLK_UART2] = imx_clk_gate2("uart2", "ipg_bus", CCM_CCGR0, CCM_CCGRx_CGn(9)); + clk[VF610_CLK_UART3] = imx_clk_gate2("uart3", "ipg_bus", CCM_CCGR0, CCM_CCGRx_CGn(10)); + clk[VF610_CLK_UART4] = imx_clk_gate2("uart4", "ipg_bus", CCM_CCGR6, CCM_CCGRx_CGn(9)); + clk[VF610_CLK_UART5] = imx_clk_gate2("uart5", "ipg_bus", CCM_CCGR6, CCM_CCGRx_CGn(10)); + + clk[VF610_CLK_I2C0] = imx_clk_gate2("i2c0", "ipg_bus", CCM_CCGR4, CCM_CCGRx_CGn(6)); + clk[VF610_CLK_I2C1] = imx_clk_gate2("i2c1", "ipg_bus", CCM_CCGR4, CCM_CCGRx_CGn(7)); + clk[VF610_CLK_I2C2] = imx_clk_gate2("i2c2", "ipg_bus", CCM_CCGR10, CCM_CCGRx_CGn(6)); + clk[VF610_CLK_I2C3] = imx_clk_gate2("i2c3", "ipg_bus", CCM_CCGR10, CCM_CCGRx_CGn(7)); + + clk[VF610_CLK_DSPI0] = imx_clk_gate2("dspi0", "ipg_bus", CCM_CCGR0, CCM_CCGRx_CGn(12)); + clk[VF610_CLK_DSPI1] = imx_clk_gate2("dspi1", "ipg_bus", CCM_CCGR0, CCM_CCGRx_CGn(13)); + clk[VF610_CLK_DSPI2] = imx_clk_gate2("dspi2", "ipg_bus", CCM_CCGR6, CCM_CCGRx_CGn(12)); + clk[VF610_CLK_DSPI3] = imx_clk_gate2("dspi3", "ipg_bus", CCM_CCGR6, CCM_CCGRx_CGn(13)); + + clk[VF610_CLK_WDT] = imx_clk_gate2("wdt", "ipg_bus", CCM_CCGR1, CCM_CCGRx_CGn(14)); + + clk[VF610_CLK_ESDHC0_SEL] = imx_clk_mux("esdhc0_sel", CCM_CSCMR1, 16, 2, esdhc_sels, 4); + clk[VF610_CLK_ESDHC0_EN] = imx_clk_gate("esdhc0_en", "esdhc0_sel", CCM_CSCDR2, 28); + clk[VF610_CLK_ESDHC0_DIV] = imx_clk_divider("esdhc0_div", "esdhc0_en", CCM_CSCDR2, 16, 4); + clk[VF610_CLK_ESDHC0] = imx_clk_gate2("eshc0", "esdhc0_div", CCM_CCGR7, CCM_CCGRx_CGn(1)); + + clk[VF610_CLK_ESDHC1_SEL] = imx_clk_mux("esdhc1_sel", CCM_CSCMR1, 18, 2, esdhc_sels, 4); + clk[VF610_CLK_ESDHC1_EN] = imx_clk_gate("esdhc1_en", "esdhc1_sel", CCM_CSCDR2, 29); + clk[VF610_CLK_ESDHC1_DIV] = imx_clk_divider("esdhc1_div", "esdhc1_en", CCM_CSCDR2, 20, 4); + clk[VF610_CLK_ESDHC1] = imx_clk_gate2("eshc1", "esdhc1_div", CCM_CCGR7, CCM_CCGRx_CGn(2)); + + /* + * ftm_ext_clk and ftm_fix_clk are FTM timer counter's + * selectable clock sources, both use a common enable bit + * in CCM_CSCDR1, selecting "dummy" clock as parent of + * "ftm0_ext_fix" make it serve only for enable/disable. + */ + clk[VF610_CLK_FTM0_EXT_SEL] = imx_clk_mux("ftm0_ext_sel", CCM_CSCMR2, 6, 2, ftm_ext_sels, 4); + clk[VF610_CLK_FTM0_FIX_SEL] = imx_clk_mux("ftm0_fix_sel", CCM_CSCMR2, 14, 1, ftm_fix_sels, 2); + clk[VF610_CLK_FTM0_EXT_FIX_EN] = imx_clk_gate("ftm0_ext_fix_en", "dummy", CCM_CSCDR1, 25); + clk[VF610_CLK_FTM1_EXT_SEL] = imx_clk_mux("ftm1_ext_sel", CCM_CSCMR2, 8, 2, ftm_ext_sels, 4); + clk[VF610_CLK_FTM1_FIX_SEL] = imx_clk_mux("ftm1_fix_sel", CCM_CSCMR2, 15, 1, ftm_fix_sels, 2); + clk[VF610_CLK_FTM1_EXT_FIX_EN] = imx_clk_gate("ftm1_ext_fix_en", "dummy", CCM_CSCDR1, 26); + clk[VF610_CLK_FTM2_EXT_SEL] = imx_clk_mux("ftm2_ext_sel", CCM_CSCMR2, 10, 2, ftm_ext_sels, 4); + clk[VF610_CLK_FTM2_FIX_SEL] = imx_clk_mux("ftm2_fix_sel", CCM_CSCMR2, 16, 1, ftm_fix_sels, 2); + clk[VF610_CLK_FTM2_EXT_FIX_EN] = imx_clk_gate("ftm2_ext_fix_en", "dummy", CCM_CSCDR1, 27); + clk[VF610_CLK_FTM3_EXT_SEL] = imx_clk_mux("ftm3_ext_sel", CCM_CSCMR2, 12, 2, ftm_ext_sels, 4); + clk[VF610_CLK_FTM3_FIX_SEL] = imx_clk_mux("ftm3_fix_sel", CCM_CSCMR2, 17, 1, ftm_fix_sels, 2); + clk[VF610_CLK_FTM3_EXT_FIX_EN] = imx_clk_gate("ftm3_ext_fix_en", "dummy", CCM_CSCDR1, 28); + + /* ftm(n)_clk are FTM module operation clock */ + clk[VF610_CLK_FTM0] = imx_clk_gate2("ftm0", "ipg_bus", CCM_CCGR1, CCM_CCGRx_CGn(8)); + clk[VF610_CLK_FTM1] = imx_clk_gate2("ftm1", "ipg_bus", CCM_CCGR1, CCM_CCGRx_CGn(9)); + clk[VF610_CLK_FTM2] = imx_clk_gate2("ftm2", "ipg_bus", CCM_CCGR7, CCM_CCGRx_CGn(8)); + clk[VF610_CLK_FTM3] = imx_clk_gate2("ftm3", "ipg_bus", CCM_CCGR7, CCM_CCGRx_CGn(9)); + + clk[VF610_CLK_DCU0_SEL] = imx_clk_mux("dcu0_sel", CCM_CSCMR1, 28, 1, dcu_sels, 2); + clk[VF610_CLK_DCU0_EN] = imx_clk_gate("dcu0_en", "dcu0_sel", CCM_CSCDR3, 19); + clk[VF610_CLK_DCU0_DIV] = imx_clk_divider("dcu0_div", "dcu0_en", CCM_CSCDR3, 16, 3); + clk[VF610_CLK_DCU0] = imx_clk_gate2("dcu0", "dcu0_div", CCM_CCGR3, CCM_CCGRx_CGn(8)); + clk[VF610_CLK_DCU1_SEL] = imx_clk_mux("dcu1_sel", CCM_CSCMR1, 29, 1, dcu_sels, 2); + clk[VF610_CLK_DCU1_EN] = imx_clk_gate("dcu1_en", "dcu1_sel", CCM_CSCDR3, 23); + clk[VF610_CLK_DCU1_DIV] = imx_clk_divider("dcu1_div", "dcu1_en", CCM_CSCDR3, 20, 3); + clk[VF610_CLK_DCU1] = imx_clk_gate2("dcu1", "dcu1_div", CCM_CCGR9, CCM_CCGRx_CGn(8)); + + clk[VF610_CLK_ESAI_SEL] = imx_clk_mux("esai_sel", CCM_CSCMR1, 20, 2, esai_sels, 4); + clk[VF610_CLK_ESAI_EN] = imx_clk_gate("esai_en", "esai_sel", CCM_CSCDR2, 30); + clk[VF610_CLK_ESAI_DIV] = imx_clk_divider("esai_div", "esai_en", CCM_CSCDR2, 24, 4); + clk[VF610_CLK_ESAI] = imx_clk_gate2("esai", "esai_div", CCM_CCGR4, CCM_CCGRx_CGn(2)); + + clk[VF610_CLK_SAI0_SEL] = imx_clk_mux("sai0_sel", CCM_CSCMR1, 0, 2, sai_sels, 4); + clk[VF610_CLK_SAI0_EN] = imx_clk_gate("sai0_en", "sai0_sel", CCM_CSCDR1, 16); + clk[VF610_CLK_SAI0_DIV] = imx_clk_divider("sai0_div", "sai0_en", CCM_CSCDR1, 0, 4); + clk[VF610_CLK_SAI0] = imx_clk_gate2("sai0", "sai0_div", CCM_CCGR0, CCM_CCGRx_CGn(15)); + + clk[VF610_CLK_SAI1_SEL] = imx_clk_mux("sai1_sel", CCM_CSCMR1, 2, 2, sai_sels, 4); + clk[VF610_CLK_SAI1_EN] = imx_clk_gate("sai1_en", "sai1_sel", CCM_CSCDR1, 17); + clk[VF610_CLK_SAI1_DIV] = imx_clk_divider("sai1_div", "sai1_en", CCM_CSCDR1, 4, 4); + clk[VF610_CLK_SAI1] = imx_clk_gate2("sai1", "sai1_div", CCM_CCGR1, CCM_CCGRx_CGn(0)); + + clk[VF610_CLK_SAI2_SEL] = imx_clk_mux("sai2_sel", CCM_CSCMR1, 4, 2, sai_sels, 4); + clk[VF610_CLK_SAI2_EN] = imx_clk_gate("sai2_en", "sai2_sel", CCM_CSCDR1, 18); + clk[VF610_CLK_SAI2_DIV] = imx_clk_divider("sai2_div", "sai2_en", CCM_CSCDR1, 8, 4); + clk[VF610_CLK_SAI2] = imx_clk_gate2("sai2", "sai2_div", CCM_CCGR1, CCM_CCGRx_CGn(1)); + + clk[VF610_CLK_SAI3_SEL] = imx_clk_mux("sai3_sel", CCM_CSCMR1, 6, 2, sai_sels, 4); + clk[VF610_CLK_SAI3_EN] = imx_clk_gate("sai3_en", "sai3_sel", CCM_CSCDR1, 19); + clk[VF610_CLK_SAI3_DIV] = imx_clk_divider("sai3_div", "sai3_en", CCM_CSCDR1, 12, 4); + clk[VF610_CLK_SAI3] = imx_clk_gate2("sai3", "sai3_div", CCM_CCGR1, CCM_CCGRx_CGn(2)); + + clk[VF610_CLK_NFC_SEL] = imx_clk_mux("nfc_sel", CCM_CSCMR1, 12, 2, nfc_sels, 4); + clk[VF610_CLK_NFC_EN] = imx_clk_gate("nfc_en", "nfc_sel", CCM_CSCDR2, 9); + clk[VF610_CLK_NFC_PRE_DIV] = imx_clk_divider("nfc_pre_div", "nfc_en", CCM_CSCDR3, 13, 3); + clk[VF610_CLK_NFC_FRAC_DIV] = imx_clk_divider("nfc_frac_div", "nfc_pre_div", CCM_CSCDR2, 4, 4); + clk[VF610_CLK_NFC] = imx_clk_gate2("nfc", "nfc_frac_div", CCM_CCGR10, CCM_CCGRx_CGn(0)); + + clk[VF610_CLK_GPU_SEL] = imx_clk_mux("gpu_sel", CCM_CSCMR1, 14, 1, gpu_sels, 2); + clk[VF610_CLK_GPU_EN] = imx_clk_gate("gpu_en", "gpu_sel", CCM_CSCDR2, 10); + clk[VF610_CLK_GPU2D] = imx_clk_gate2("gpu", "gpu_en", CCM_CCGR8, CCM_CCGRx_CGn(15)); + + clk[VF610_CLK_VADC_SEL] = imx_clk_mux("vadc_sel", CCM_CSCMR1, 8, 2, vadc_sels, 3); + clk[VF610_CLK_VADC_EN] = imx_clk_gate("vadc_en", "vadc_sel", CCM_CSCDR1, 22); + clk[VF610_CLK_VADC_DIV] = imx_clk_divider("vadc_div", "vadc_en", CCM_CSCDR1, 20, 2); + clk[VF610_CLK_VADC_DIV_HALF] = imx_clk_fixed_factor("vadc_div_half", "vadc_div", 1, 2); + clk[VF610_CLK_VADC] = imx_clk_gate2("vadc", "vadc_div", CCM_CCGR8, CCM_CCGRx_CGn(7)); + + clk[VF610_CLK_ADC0] = imx_clk_gate2("adc0", "ipg_bus", CCM_CCGR1, CCM_CCGRx_CGn(11)); + clk[VF610_CLK_ADC1] = imx_clk_gate2("adc1", "ipg_bus", CCM_CCGR7, CCM_CCGRx_CGn(11)); + clk[VF610_CLK_DAC0] = imx_clk_gate2("dac0", "ipg_bus", CCM_CCGR8, CCM_CCGRx_CGn(12)); + clk[VF610_CLK_DAC1] = imx_clk_gate2("dac1", "ipg_bus", CCM_CCGR8, CCM_CCGRx_CGn(13)); + + clk[VF610_CLK_ASRC] = imx_clk_gate2("asrc", "ipg_bus", CCM_CCGR4, CCM_CCGRx_CGn(1)); + + clk[VF610_CLK_FLEXCAN0_EN] = imx_clk_gate("flexcan0_en", "ipg_bus", CCM_CSCDR2, 11); + clk[VF610_CLK_FLEXCAN0] = imx_clk_gate2("flexcan0", "flexcan0_en", CCM_CCGR0, CCM_CCGRx_CGn(0)); + clk[VF610_CLK_FLEXCAN1_EN] = imx_clk_gate("flexcan1_en", "ipg_bus", CCM_CSCDR2, 12); + clk[VF610_CLK_FLEXCAN1] = imx_clk_gate2("flexcan1", "flexcan1_en", CCM_CCGR9, CCM_CCGRx_CGn(4)); + + clk[VF610_CLK_DMAMUX0] = imx_clk_gate2("dmamux0", "platform_bus", CCM_CCGR0, CCM_CCGRx_CGn(4)); + clk[VF610_CLK_DMAMUX1] = imx_clk_gate2("dmamux1", "platform_bus", CCM_CCGR0, CCM_CCGRx_CGn(5)); + clk[VF610_CLK_DMAMUX2] = imx_clk_gate2("dmamux2", "platform_bus", CCM_CCGR6, CCM_CCGRx_CGn(1)); + clk[VF610_CLK_DMAMUX3] = imx_clk_gate2("dmamux3", "platform_bus", CCM_CCGR6, CCM_CCGRx_CGn(2)); + + clk[VF610_CLK_SNVS] = imx_clk_gate2("snvs-rtc", "ipg_bus", CCM_CCGR6, CCM_CCGRx_CGn(7)); + clk[VF610_CLK_DAP] = imx_clk_gate("dap", "platform_bus", CCM_CCSR, 24); + + imx_check_clocks(clk, ARRAY_SIZE(clk)); + + clk_set_parent(clk[VF610_CLK_QSPI0_SEL], clk[VF610_CLK_PLL1_PFD4]); + clk_set_rate(clk[VF610_CLK_QSPI0_X4_DIV], clk_get_rate(clk[VF610_CLK_QSPI0_SEL]) / 2); + clk_set_rate(clk[VF610_CLK_QSPI0_X2_DIV], clk_get_rate(clk[VF610_CLK_QSPI0_X4_DIV]) / 2); + clk_set_rate(clk[VF610_CLK_QSPI0_X1_DIV], clk_get_rate(clk[VF610_CLK_QSPI0_X2_DIV]) / 2); + + clk_set_parent(clk[VF610_CLK_QSPI1_SEL], clk[VF610_CLK_PLL1_PFD4]); + clk_set_rate(clk[VF610_CLK_QSPI1_X4_DIV], clk_get_rate(clk[VF610_CLK_QSPI1_SEL]) / 2); + clk_set_rate(clk[VF610_CLK_QSPI1_X2_DIV], clk_get_rate(clk[VF610_CLK_QSPI1_X4_DIV]) / 2); + clk_set_rate(clk[VF610_CLK_QSPI1_X1_DIV], clk_get_rate(clk[VF610_CLK_QSPI1_X2_DIV]) / 2); + + clk_set_parent(clk[VF610_CLK_SAI0_SEL], clk[VF610_CLK_AUDIO_EXT]); + clk_set_parent(clk[VF610_CLK_SAI1_SEL], clk[VF610_CLK_AUDIO_EXT]); + clk_set_parent(clk[VF610_CLK_SAI2_SEL], clk[VF610_CLK_AUDIO_EXT]); + clk_set_parent(clk[VF610_CLK_SAI3_SEL], clk[VF610_CLK_AUDIO_EXT]); + + for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) + clk_prepare_enable(clk[clks_init_on[i]]); + + /* Add the clocks to provider list */ + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); +} +CLK_OF_DECLARE(vf610, "fsl,vf610-ccm", vf610_clocks_init); diff --git a/drivers/clk/imx/clk.c b/drivers/clk/imx/clk.c new file mode 100644 index 000000000000..df12b5307175 --- /dev/null +++ b/drivers/clk/imx/clk.c @@ -0,0 +1,75 @@ +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include "clk.h" + +DEFINE_SPINLOCK(imx_ccm_lock); + +void __init imx_check_clocks(struct clk *clks[], unsigned int count) +{ + unsigned i; + + for (i = 0; i < count; i++) + if (IS_ERR(clks[i])) + pr_err("i.MX clk %u: register failed with %ld\n", + i, PTR_ERR(clks[i])); +} + +static struct clk * __init imx_obtain_fixed_clock_from_dt(const char *name) +{ + struct of_phandle_args phandle; + struct clk *clk = ERR_PTR(-ENODEV); + char *path; + + path = kasprintf(GFP_KERNEL, "/clocks/%s", name); + if (!path) + return ERR_PTR(-ENOMEM); + + phandle.np = of_find_node_by_path(path); + kfree(path); + + if (phandle.np) { + clk = of_clk_get_from_provider(&phandle); + of_node_put(phandle.np); + } + return clk; +} + +struct clk * __init imx_obtain_fixed_clock( + const char *name, unsigned long rate) +{ + struct clk *clk; + + clk = imx_obtain_fixed_clock_from_dt(name); + if (IS_ERR(clk)) + clk = imx_clk_fixed(name, rate); + return clk; +} + +/* + * This fixups the register CCM_CSCMR1 write value. + * The write/read/divider values of the aclk_podf field + * of that register have the relationship described by + * the following table: + * + * write value read value divider + * 3b'000 3b'110 7 + * 3b'001 3b'111 8 + * 3b'010 3b'100 5 + * 3b'011 3b'101 6 + * 3b'100 3b'010 3 + * 3b'101 3b'011 4 + * 3b'110 3b'000 1 + * 3b'111 3b'001 2(default) + * + * That's why we do the xor operation below. + */ +#define CSCMR1_FIXUP 0x00600000 + +void imx_cscmr1_fixup(u32 *val) +{ + *val ^= CSCMR1_FIXUP; + return; +} diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h new file mode 100644 index 000000000000..1049b0c7d818 --- /dev/null +++ b/drivers/clk/imx/clk.h @@ -0,0 +1,149 @@ +#ifndef __MACH_IMX_CLK_H +#define __MACH_IMX_CLK_H + +#include <linux/spinlock.h> +#include <linux/clk-provider.h> + +extern spinlock_t imx_ccm_lock; + +void imx_check_clocks(struct clk *clks[], unsigned int count); + +extern void imx_cscmr1_fixup(u32 *val); + +enum imx_pllv1_type { + IMX_PLLV1_IMX1, + IMX_PLLV1_IMX21, + IMX_PLLV1_IMX25, + IMX_PLLV1_IMX27, + IMX_PLLV1_IMX31, + IMX_PLLV1_IMX35, +}; + +struct clk *imx_clk_pllv1(enum imx_pllv1_type type, const char *name, + const char *parent, void __iomem *base); + +struct clk *imx_clk_pllv2(const char *name, const char *parent, + void __iomem *base); + +enum imx_pllv3_type { + IMX_PLLV3_GENERIC, + IMX_PLLV3_SYS, + IMX_PLLV3_USB, + IMX_PLLV3_USB_VF610, + IMX_PLLV3_AV, + IMX_PLLV3_ENET, + IMX_PLLV3_ENET_IMX7, +}; + +struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name, + const char *parent_name, void __iomem *base, u32 div_mask); + +struct clk *clk_register_gate2(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, + void __iomem *reg, u8 bit_idx, + u8 clk_gate_flags, spinlock_t *lock, + unsigned int *share_count); + +struct clk * imx_obtain_fixed_clock( + const char *name, unsigned long rate); + +struct clk *imx_clk_gate_exclusive(const char *name, const char *parent, + void __iomem *reg, u8 shift, u32 exclusive_mask); + +static inline struct clk *imx_clk_gate2(const char *name, const char *parent, + void __iomem *reg, u8 shift) +{ + return clk_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT, reg, + shift, 0, &imx_ccm_lock, NULL); +} + +static inline struct clk *imx_clk_gate2_shared(const char *name, + const char *parent, void __iomem *reg, u8 shift, + unsigned int *share_count) +{ + return clk_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT, reg, + shift, 0, &imx_ccm_lock, share_count); +} + +struct clk *imx_clk_pfd(const char *name, const char *parent_name, + void __iomem *reg, u8 idx); + +struct clk *imx_clk_busy_divider(const char *name, const char *parent_name, + void __iomem *reg, u8 shift, u8 width, + void __iomem *busy_reg, u8 busy_shift); + +struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift, + u8 width, void __iomem *busy_reg, u8 busy_shift, + const char **parent_names, int num_parents); + +struct clk *imx_clk_fixup_divider(const char *name, const char *parent, + void __iomem *reg, u8 shift, u8 width, + void (*fixup)(u32 *val)); + +struct clk *imx_clk_fixup_mux(const char *name, void __iomem *reg, + u8 shift, u8 width, const char **parents, + int num_parents, void (*fixup)(u32 *val)); + +static inline struct clk *imx_clk_fixed(const char *name, int rate) +{ + return clk_register_fixed_rate(NULL, name, NULL, CLK_IS_ROOT, rate); +} + +static inline struct clk *imx_clk_divider(const char *name, const char *parent, + void __iomem *reg, u8 shift, u8 width) +{ + return clk_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT, + reg, shift, width, 0, &imx_ccm_lock); +} + +static inline struct clk *imx_clk_divider_flags(const char *name, + const char *parent, void __iomem *reg, u8 shift, u8 width, + unsigned long flags) +{ + return clk_register_divider(NULL, name, parent, flags, + reg, shift, width, 0, &imx_ccm_lock); +} + +static inline struct clk *imx_clk_gate(const char *name, const char *parent, + void __iomem *reg, u8 shift) +{ + return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg, + shift, 0, &imx_ccm_lock); +} + +static inline struct clk *imx_clk_gate_dis(const char *name, const char *parent, + void __iomem *reg, u8 shift) +{ + return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg, + shift, CLK_GATE_SET_TO_DISABLE, &imx_ccm_lock); +} + +static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg, + u8 shift, u8 width, const char **parents, int num_parents) +{ + return clk_register_mux(NULL, name, parents, num_parents, + CLK_SET_RATE_NO_REPARENT, reg, shift, + width, 0, &imx_ccm_lock); +} + +static inline struct clk *imx_clk_mux_flags(const char *name, + void __iomem *reg, u8 shift, u8 width, const char **parents, + int num_parents, unsigned long flags) +{ + return clk_register_mux(NULL, name, parents, num_parents, + flags | CLK_SET_RATE_NO_REPARENT, reg, shift, width, 0, + &imx_ccm_lock); +} + +static inline struct clk *imx_clk_fixed_factor(const char *name, + const char *parent, unsigned int mult, unsigned int div) +{ + return clk_register_fixed_factor(NULL, name, parent, + CLK_SET_RATE_PARENT, mult, div); +} + +struct clk *imx_clk_cpu(const char *name, const char *parent_name, + struct clk *div, struct clk *mux, struct clk *pll, + struct clk *step); + +#endif diff --git a/drivers/clk/ingenic/Makefile b/drivers/clk/ingenic/Makefile new file mode 100644 index 000000000000..cd47b0664c2b --- /dev/null +++ b/drivers/clk/ingenic/Makefile @@ -0,0 +1,3 @@ +obj-y += cgu.o +obj-$(CONFIG_MACH_JZ4740) += jz4740-cgu.o +obj-$(CONFIG_MACH_JZ4780) += jz4780-cgu.o diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c new file mode 100644 index 000000000000..b936cdd1a13c --- /dev/null +++ b/drivers/clk/ingenic/cgu.c @@ -0,0 +1,711 @@ +/* + * Ingenic SoC CGU driver + * + * Copyright (c) 2013-2015 Imagination Technologies + * Author: Paul Burton <paul.burton@imgtec.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/bitops.h> +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/delay.h> +#include <linux/math64.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include "cgu.h" + +#define MHZ (1000 * 1000) + +/** + * ingenic_cgu_gate_get() - get the value of clock gate register bit + * @cgu: reference to the CGU whose registers should be read + * @info: info struct describing the gate bit + * + * Retrieves the state of the clock gate bit described by info. The + * caller must hold cgu->lock. + * + * Return: true if the gate bit is set, else false. + */ +static inline bool +ingenic_cgu_gate_get(struct ingenic_cgu *cgu, + const struct ingenic_cgu_gate_info *info) +{ + return readl(cgu->base + info->reg) & BIT(info->bit); +} + +/** + * ingenic_cgu_gate_set() - set the value of clock gate register bit + * @cgu: reference to the CGU whose registers should be modified + * @info: info struct describing the gate bit + * @val: non-zero to gate a clock, otherwise zero + * + * Sets the given gate bit in order to gate or ungate a clock. + * + * The caller must hold cgu->lock. + */ +static inline void +ingenic_cgu_gate_set(struct ingenic_cgu *cgu, + const struct ingenic_cgu_gate_info *info, bool val) +{ + u32 clkgr = readl(cgu->base + info->reg); + + if (val) + clkgr |= BIT(info->bit); + else + clkgr &= ~BIT(info->bit); + + writel(clkgr, cgu->base + info->reg); +} + +/* + * PLL operations + */ + +static unsigned long +ingenic_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + const struct ingenic_cgu_pll_info *pll_info; + unsigned m, n, od_enc, od; + bool bypass, enable; + unsigned long flags; + u32 ctl; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + BUG_ON(clk_info->type != CGU_CLK_PLL); + pll_info = &clk_info->pll; + + spin_lock_irqsave(&cgu->lock, flags); + ctl = readl(cgu->base + pll_info->reg); + spin_unlock_irqrestore(&cgu->lock, flags); + + m = (ctl >> pll_info->m_shift) & GENMASK(pll_info->m_bits - 1, 0); + m += pll_info->m_offset; + n = (ctl >> pll_info->n_shift) & GENMASK(pll_info->n_bits - 1, 0); + n += pll_info->n_offset; + od_enc = ctl >> pll_info->od_shift; + od_enc &= GENMASK(pll_info->od_bits - 1, 0); + bypass = !!(ctl & BIT(pll_info->bypass_bit)); + enable = !!(ctl & BIT(pll_info->enable_bit)); + + if (bypass) + return parent_rate; + + if (!enable) + return 0; + + for (od = 0; od < pll_info->od_max; od++) { + if (pll_info->od_encoding[od] == od_enc) + break; + } + BUG_ON(od == pll_info->od_max); + od++; + + return div_u64((u64)parent_rate * m, n * od); +} + +static unsigned long +ingenic_pll_calc(const struct ingenic_cgu_clk_info *clk_info, + unsigned long rate, unsigned long parent_rate, + unsigned *pm, unsigned *pn, unsigned *pod) +{ + const struct ingenic_cgu_pll_info *pll_info; + unsigned m, n, od; + + pll_info = &clk_info->pll; + od = 1; + + /* + * The frequency after the input divider must be between 10 and 50 MHz. + * The highest divider yields the best resolution. + */ + n = parent_rate / (10 * MHZ); + n = min_t(unsigned, n, 1 << clk_info->pll.n_bits); + n = max_t(unsigned, n, pll_info->n_offset); + + m = (rate / MHZ) * od * n / (parent_rate / MHZ); + m = min_t(unsigned, m, 1 << clk_info->pll.m_bits); + m = max_t(unsigned, m, pll_info->m_offset); + + if (pm) + *pm = m; + if (pn) + *pn = n; + if (pod) + *pod = od; + + return div_u64((u64)parent_rate * m, n * od); +} + +static long +ingenic_pll_round_rate(struct clk_hw *hw, unsigned long req_rate, + unsigned long *prate) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + BUG_ON(clk_info->type != CGU_CLK_PLL); + + return ingenic_pll_calc(clk_info, req_rate, *prate, NULL, NULL, NULL); +} + +static int +ingenic_pll_set_rate(struct clk_hw *hw, unsigned long req_rate, + unsigned long parent_rate) +{ + const unsigned timeout = 100; + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + const struct ingenic_cgu_pll_info *pll_info; + unsigned long rate, flags; + unsigned m, n, od, i; + u32 ctl; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + BUG_ON(clk_info->type != CGU_CLK_PLL); + pll_info = &clk_info->pll; + + rate = ingenic_pll_calc(clk_info, req_rate, parent_rate, + &m, &n, &od); + if (rate != req_rate) + pr_info("ingenic-cgu: request '%s' rate %luHz, actual %luHz\n", + clk_info->name, req_rate, rate); + + spin_lock_irqsave(&cgu->lock, flags); + ctl = readl(cgu->base + pll_info->reg); + + ctl &= ~(GENMASK(pll_info->m_bits - 1, 0) << pll_info->m_shift); + ctl |= (m - pll_info->m_offset) << pll_info->m_shift; + + ctl &= ~(GENMASK(pll_info->n_bits - 1, 0) << pll_info->n_shift); + ctl |= (n - pll_info->n_offset) << pll_info->n_shift; + + ctl &= ~(GENMASK(pll_info->od_bits - 1, 0) << pll_info->od_shift); + ctl |= pll_info->od_encoding[od - 1] << pll_info->od_shift; + + ctl &= ~BIT(pll_info->bypass_bit); + ctl |= BIT(pll_info->enable_bit); + + writel(ctl, cgu->base + pll_info->reg); + + /* wait for the PLL to stabilise */ + for (i = 0; i < timeout; i++) { + ctl = readl(cgu->base + pll_info->reg); + if (ctl & BIT(pll_info->stable_bit)) + break; + mdelay(1); + } + + spin_unlock_irqrestore(&cgu->lock, flags); + + if (i == timeout) + return -EBUSY; + + return 0; +} + +static const struct clk_ops ingenic_pll_ops = { + .recalc_rate = ingenic_pll_recalc_rate, + .round_rate = ingenic_pll_round_rate, + .set_rate = ingenic_pll_set_rate, +}; + +/* + * Operations for all non-PLL clocks + */ + +static u8 ingenic_clk_get_parent(struct clk_hw *hw) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + u32 reg; + u8 i, hw_idx, idx = 0; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + + if (clk_info->type & CGU_CLK_MUX) { + reg = readl(cgu->base + clk_info->mux.reg); + hw_idx = (reg >> clk_info->mux.shift) & + GENMASK(clk_info->mux.bits - 1, 0); + + /* + * Convert the hardware index to the parent index by skipping + * over any -1's in the parents array. + */ + for (i = 0; i < hw_idx; i++) { + if (clk_info->parents[i] != -1) + idx++; + } + } + + return idx; +} + +static int ingenic_clk_set_parent(struct clk_hw *hw, u8 idx) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + unsigned long flags; + u8 curr_idx, hw_idx, num_poss; + u32 reg, mask; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + + if (clk_info->type & CGU_CLK_MUX) { + /* + * Convert the parent index to the hardware index by adding + * 1 for any -1 in the parents array preceding the given + * index. That is, we want the index of idx'th entry in + * clk_info->parents which does not equal -1. + */ + hw_idx = curr_idx = 0; + num_poss = 1 << clk_info->mux.bits; + for (; hw_idx < num_poss; hw_idx++) { + if (clk_info->parents[hw_idx] == -1) + continue; + if (curr_idx == idx) + break; + curr_idx++; + } + + /* idx should always be a valid parent */ + BUG_ON(curr_idx != idx); + + mask = GENMASK(clk_info->mux.bits - 1, 0); + mask <<= clk_info->mux.shift; + + spin_lock_irqsave(&cgu->lock, flags); + + /* write the register */ + reg = readl(cgu->base + clk_info->mux.reg); + reg &= ~mask; + reg |= hw_idx << clk_info->mux.shift; + writel(reg, cgu->base + clk_info->mux.reg); + + spin_unlock_irqrestore(&cgu->lock, flags); + return 0; + } + + return idx ? -EINVAL : 0; +} + +static unsigned long +ingenic_clk_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + unsigned long rate = parent_rate; + u32 div_reg, div; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + + if (clk_info->type & CGU_CLK_DIV) { + div_reg = readl(cgu->base + clk_info->div.reg); + div = (div_reg >> clk_info->div.shift) & + GENMASK(clk_info->div.bits - 1, 0); + div += 1; + + rate /= div; + } + + return rate; +} + +static unsigned +ingenic_clk_calc_div(const struct ingenic_cgu_clk_info *clk_info, + unsigned long parent_rate, unsigned long req_rate) +{ + unsigned div; + + /* calculate the divide */ + div = DIV_ROUND_UP(parent_rate, req_rate); + + /* and impose hardware constraints */ + div = min_t(unsigned, div, 1 << clk_info->div.bits); + div = max_t(unsigned, div, 1); + + return div; +} + +static long +ingenic_clk_round_rate(struct clk_hw *hw, unsigned long req_rate, + unsigned long *parent_rate) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + long rate = *parent_rate; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + + if (clk_info->type & CGU_CLK_DIV) + rate /= ingenic_clk_calc_div(clk_info, *parent_rate, req_rate); + else if (clk_info->type & CGU_CLK_FIXDIV) + rate /= clk_info->fixdiv.div; + + return rate; +} + +static int +ingenic_clk_set_rate(struct clk_hw *hw, unsigned long req_rate, + unsigned long parent_rate) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + const unsigned timeout = 100; + unsigned long rate, flags; + unsigned div, i; + u32 reg, mask; + int ret = 0; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + + if (clk_info->type & CGU_CLK_DIV) { + div = ingenic_clk_calc_div(clk_info, parent_rate, req_rate); + rate = parent_rate / div; + + if (rate != req_rate) + return -EINVAL; + + spin_lock_irqsave(&cgu->lock, flags); + reg = readl(cgu->base + clk_info->div.reg); + + /* update the divide */ + mask = GENMASK(clk_info->div.bits - 1, 0); + reg &= ~(mask << clk_info->div.shift); + reg |= (div - 1) << clk_info->div.shift; + + /* clear the stop bit */ + if (clk_info->div.stop_bit != -1) + reg &= ~BIT(clk_info->div.stop_bit); + + /* set the change enable bit */ + if (clk_info->div.ce_bit != -1) + reg |= BIT(clk_info->div.ce_bit); + + /* update the hardware */ + writel(reg, cgu->base + clk_info->div.reg); + + /* wait for the change to take effect */ + if (clk_info->div.busy_bit != -1) { + for (i = 0; i < timeout; i++) { + reg = readl(cgu->base + clk_info->div.reg); + if (!(reg & BIT(clk_info->div.busy_bit))) + break; + mdelay(1); + } + if (i == timeout) + ret = -EBUSY; + } + + spin_unlock_irqrestore(&cgu->lock, flags); + return ret; + } + + return -EINVAL; +} + +static int ingenic_clk_enable(struct clk_hw *hw) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + unsigned long flags; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + + if (clk_info->type & CGU_CLK_GATE) { + /* ungate the clock */ + spin_lock_irqsave(&cgu->lock, flags); + ingenic_cgu_gate_set(cgu, &clk_info->gate, false); + spin_unlock_irqrestore(&cgu->lock, flags); + } + + return 0; +} + +static void ingenic_clk_disable(struct clk_hw *hw) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + unsigned long flags; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + + if (clk_info->type & CGU_CLK_GATE) { + /* gate the clock */ + spin_lock_irqsave(&cgu->lock, flags); + ingenic_cgu_gate_set(cgu, &clk_info->gate, true); + spin_unlock_irqrestore(&cgu->lock, flags); + } +} + +static int ingenic_clk_is_enabled(struct clk_hw *hw) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info; + unsigned long flags; + int enabled = 1; + + clk_info = &cgu->clock_info[ingenic_clk->idx]; + + if (clk_info->type & CGU_CLK_GATE) { + spin_lock_irqsave(&cgu->lock, flags); + enabled = !ingenic_cgu_gate_get(cgu, &clk_info->gate); + spin_unlock_irqrestore(&cgu->lock, flags); + } + + return enabled; +} + +static const struct clk_ops ingenic_clk_ops = { + .get_parent = ingenic_clk_get_parent, + .set_parent = ingenic_clk_set_parent, + + .recalc_rate = ingenic_clk_recalc_rate, + .round_rate = ingenic_clk_round_rate, + .set_rate = ingenic_clk_set_rate, + + .enable = ingenic_clk_enable, + .disable = ingenic_clk_disable, + .is_enabled = ingenic_clk_is_enabled, +}; + +/* + * Setup functions. + */ + +static int ingenic_register_clock(struct ingenic_cgu *cgu, unsigned idx) +{ + const struct ingenic_cgu_clk_info *clk_info = &cgu->clock_info[idx]; + struct clk_init_data clk_init; + struct ingenic_clk *ingenic_clk = NULL; + struct clk *clk, *parent; + const char *parent_names[4]; + unsigned caps, i, num_possible; + int err = -EINVAL; + + BUILD_BUG_ON(ARRAY_SIZE(clk_info->parents) > ARRAY_SIZE(parent_names)); + + if (clk_info->type == CGU_CLK_EXT) { + clk = of_clk_get_by_name(cgu->np, clk_info->name); + if (IS_ERR(clk)) { + pr_err("%s: no external clock '%s' provided\n", + __func__, clk_info->name); + err = -ENODEV; + goto out; + } + err = clk_register_clkdev(clk, clk_info->name, NULL); + if (err) { + clk_put(clk); + goto out; + } + cgu->clocks.clks[idx] = clk; + return 0; + } + + if (!clk_info->type) { + pr_err("%s: no clock type specified for '%s'\n", __func__, + clk_info->name); + goto out; + } + + ingenic_clk = kzalloc(sizeof(*ingenic_clk), GFP_KERNEL); + if (!ingenic_clk) { + err = -ENOMEM; + goto out; + } + + ingenic_clk->hw.init = &clk_init; + ingenic_clk->cgu = cgu; + ingenic_clk->idx = idx; + + clk_init.name = clk_info->name; + clk_init.flags = 0; + clk_init.parent_names = parent_names; + + caps = clk_info->type; + + if (caps & (CGU_CLK_MUX | CGU_CLK_CUSTOM)) { + clk_init.num_parents = 0; + + if (caps & CGU_CLK_MUX) + num_possible = 1 << clk_info->mux.bits; + else + num_possible = ARRAY_SIZE(clk_info->parents); + + for (i = 0; i < num_possible; i++) { + if (clk_info->parents[i] == -1) + continue; + + parent = cgu->clocks.clks[clk_info->parents[i]]; + parent_names[clk_init.num_parents] = + __clk_get_name(parent); + clk_init.num_parents++; + } + + BUG_ON(!clk_init.num_parents); + BUG_ON(clk_init.num_parents > ARRAY_SIZE(parent_names)); + } else { + BUG_ON(clk_info->parents[0] == -1); + clk_init.num_parents = 1; + parent = cgu->clocks.clks[clk_info->parents[0]]; + parent_names[0] = __clk_get_name(parent); + } + + if (caps & CGU_CLK_CUSTOM) { + clk_init.ops = clk_info->custom.clk_ops; + + caps &= ~CGU_CLK_CUSTOM; + + if (caps) { + pr_err("%s: custom clock may not be combined with type 0x%x\n", + __func__, caps); + goto out; + } + } else if (caps & CGU_CLK_PLL) { + clk_init.ops = &ingenic_pll_ops; + + caps &= ~CGU_CLK_PLL; + + if (caps) { + pr_err("%s: PLL may not be combined with type 0x%x\n", + __func__, caps); + goto out; + } + } else { + clk_init.ops = &ingenic_clk_ops; + } + + /* nothing to do for gates or fixed dividers */ + caps &= ~(CGU_CLK_GATE | CGU_CLK_FIXDIV); + + if (caps & CGU_CLK_MUX) { + if (!(caps & CGU_CLK_MUX_GLITCHFREE)) + clk_init.flags |= CLK_SET_PARENT_GATE; + + caps &= ~(CGU_CLK_MUX | CGU_CLK_MUX_GLITCHFREE); + } + + if (caps & CGU_CLK_DIV) { + caps &= ~CGU_CLK_DIV; + } else { + /* pass rate changes to the parent clock */ + clk_init.flags |= CLK_SET_RATE_PARENT; + } + + if (caps) { + pr_err("%s: unknown clock type 0x%x\n", __func__, caps); + goto out; + } + + clk = clk_register(NULL, &ingenic_clk->hw); + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock '%s'\n", __func__, + clk_info->name); + err = PTR_ERR(clk); + goto out; + } + + err = clk_register_clkdev(clk, clk_info->name, NULL); + if (err) + goto out; + + cgu->clocks.clks[idx] = clk; +out: + if (err) + kfree(ingenic_clk); + return err; +} + +struct ingenic_cgu * +ingenic_cgu_new(const struct ingenic_cgu_clk_info *clock_info, + unsigned num_clocks, struct device_node *np) +{ + struct ingenic_cgu *cgu; + + cgu = kzalloc(sizeof(*cgu), GFP_KERNEL); + if (!cgu) + goto err_out; + + cgu->base = of_iomap(np, 0); + if (!cgu->base) { + pr_err("%s: failed to map CGU registers\n", __func__); + goto err_out_free; + } + + cgu->np = np; + cgu->clock_info = clock_info; + cgu->clocks.clk_num = num_clocks; + + spin_lock_init(&cgu->lock); + + return cgu; + +err_out_free: + kfree(cgu); +err_out: + return NULL; +} + +int ingenic_cgu_register_clocks(struct ingenic_cgu *cgu) +{ + unsigned i; + int err; + + cgu->clocks.clks = kcalloc(cgu->clocks.clk_num, sizeof(struct clk *), + GFP_KERNEL); + if (!cgu->clocks.clks) { + err = -ENOMEM; + goto err_out; + } + + for (i = 0; i < cgu->clocks.clk_num; i++) { + err = ingenic_register_clock(cgu, i); + if (err) + goto err_out_unregister; + } + + err = of_clk_add_provider(cgu->np, of_clk_src_onecell_get, + &cgu->clocks); + if (err) + goto err_out_unregister; + + return 0; + +err_out_unregister: + for (i = 0; i < cgu->clocks.clk_num; i++) { + if (!cgu->clocks.clks[i]) + continue; + if (cgu->clock_info[i].type & CGU_CLK_EXT) + clk_put(cgu->clocks.clks[i]); + else + clk_unregister(cgu->clocks.clks[i]); + } + kfree(cgu->clocks.clks); +err_out: + return err; +} diff --git a/drivers/clk/ingenic/cgu.h b/drivers/clk/ingenic/cgu.h new file mode 100644 index 000000000000..99347e2b97e8 --- /dev/null +++ b/drivers/clk/ingenic/cgu.h @@ -0,0 +1,223 @@ +/* + * Ingenic SoC CGU driver + * + * Copyright (c) 2013-2015 Imagination Technologies + * Author: Paul Burton <paul.burton@imgtec.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __DRIVERS_CLK_INGENIC_CGU_H__ +#define __DRIVERS_CLK_INGENIC_CGU_H__ + +#include <linux/bitops.h> +#include <linux/of.h> +#include <linux/spinlock.h> + +/** + * struct ingenic_cgu_pll_info - information about a PLL + * @reg: the offset of the PLL's control register within the CGU + * @m_shift: the number of bits to shift the multiplier value by (ie. the + * index of the lowest bit of the multiplier value in the PLL's + * control register) + * @m_bits: the size of the multiplier field in bits + * @m_offset: the multiplier value which encodes to 0 in the PLL's control + * register + * @n_shift: the number of bits to shift the divider value by (ie. the + * index of the lowest bit of the divider value in the PLL's + * control register) + * @n_bits: the size of the divider field in bits + * @n_offset: the divider value which encodes to 0 in the PLL's control + * register + * @od_shift: the number of bits to shift the post-VCO divider value by (ie. + * the index of the lowest bit of the post-VCO divider value in + * the PLL's control register) + * @od_bits: the size of the post-VCO divider field in bits + * @od_max: the maximum post-VCO divider value + * @od_encoding: a pointer to an array mapping post-VCO divider values to + * their encoded values in the PLL control register, or -1 for + * unsupported values + * @bypass_bit: the index of the bypass bit in the PLL control register + * @enable_bit: the index of the enable bit in the PLL control register + * @stable_bit: the index of the stable bit in the PLL control register + */ +struct ingenic_cgu_pll_info { + unsigned reg; + const s8 *od_encoding; + u8 m_shift, m_bits, m_offset; + u8 n_shift, n_bits, n_offset; + u8 od_shift, od_bits, od_max; + u8 bypass_bit; + u8 enable_bit; + u8 stable_bit; +}; + +/** + * struct ingenic_cgu_mux_info - information about a clock mux + * @reg: offset of the mux control register within the CGU + * @shift: number of bits to shift the mux value by (ie. the index of + * the lowest bit of the mux value within its control register) + * @bits: the size of the mux value in bits + */ +struct ingenic_cgu_mux_info { + unsigned reg; + u8 shift; + u8 bits; +}; + +/** + * struct ingenic_cgu_div_info - information about a divider + * @reg: offset of the divider control register within the CGU + * @shift: number of bits to shift the divide value by (ie. the index of + * the lowest bit of the divide value within its control register) + * @bits: the size of the divide value in bits + * @ce_bit: the index of the change enable bit within reg, or -1 if there + * isn't one + * @busy_bit: the index of the busy bit within reg, or -1 if there isn't one + * @stop_bit: the index of the stop bit within reg, or -1 if there isn't one + */ +struct ingenic_cgu_div_info { + unsigned reg; + u8 shift; + u8 bits; + s8 ce_bit; + s8 busy_bit; + s8 stop_bit; +}; + +/** + * struct ingenic_cgu_fixdiv_info - information about a fixed divider + * @div: the divider applied to the parent clock + */ +struct ingenic_cgu_fixdiv_info { + unsigned div; +}; + +/** + * struct ingenic_cgu_gate_info - information about a clock gate + * @reg: offset of the gate control register within the CGU + * @bit: offset of the bit in the register that controls the gate + */ +struct ingenic_cgu_gate_info { + unsigned reg; + u8 bit; +}; + +/** + * struct ingenic_cgu_custom_info - information about a custom (SoC) clock + * @clk_ops: custom clock operation callbacks + */ +struct ingenic_cgu_custom_info { + struct clk_ops *clk_ops; +}; + +/** + * struct ingenic_cgu_clk_info - information about a clock + * @name: name of the clock + * @type: a bitmask formed from CGU_CLK_* values + * @parents: an array of the indices of potential parents of this clock + * within the clock_info array of the CGU, or -1 in entries + * which correspond to no valid parent + * @pll: information valid if type includes CGU_CLK_PLL + * @gate: information valid if type includes CGU_CLK_GATE + * @mux: information valid if type includes CGU_CLK_MUX + * @div: information valid if type includes CGU_CLK_DIV + * @fixdiv: information valid if type includes CGU_CLK_FIXDIV + * @custom: information valid if type includes CGU_CLK_CUSTOM + */ +struct ingenic_cgu_clk_info { + const char *name; + + enum { + CGU_CLK_NONE = 0, + CGU_CLK_EXT = BIT(0), + CGU_CLK_PLL = BIT(1), + CGU_CLK_GATE = BIT(2), + CGU_CLK_MUX = BIT(3), + CGU_CLK_MUX_GLITCHFREE = BIT(4), + CGU_CLK_DIV = BIT(5), + CGU_CLK_FIXDIV = BIT(6), + CGU_CLK_CUSTOM = BIT(7), + } type; + + int parents[4]; + + union { + struct ingenic_cgu_pll_info pll; + + struct { + struct ingenic_cgu_gate_info gate; + struct ingenic_cgu_mux_info mux; + struct ingenic_cgu_div_info div; + struct ingenic_cgu_fixdiv_info fixdiv; + }; + + struct ingenic_cgu_custom_info custom; + }; +}; + +/** + * struct ingenic_cgu - data about the CGU + * @np: the device tree node that caused the CGU to be probed + * @base: the ioremap'ed base address of the CGU registers + * @clock_info: an array containing information about implemented clocks + * @clocks: used to provide clocks to DT, allows lookup of struct clk* + * @lock: lock to be held whilst manipulating CGU registers + */ +struct ingenic_cgu { + struct device_node *np; + void __iomem *base; + + const struct ingenic_cgu_clk_info *clock_info; + struct clk_onecell_data clocks; + + spinlock_t lock; +}; + +/** + * struct ingenic_clk - private data for a clock + * @hw: see Documentation/clk.txt + * @cgu: a pointer to the CGU data + * @idx: the index of this clock in cgu->clock_info + */ +struct ingenic_clk { + struct clk_hw hw; + struct ingenic_cgu *cgu; + unsigned idx; +}; + +#define to_ingenic_clk(_hw) container_of(_hw, struct ingenic_clk, hw) + +/** + * ingenic_cgu_new() - create a new CGU instance + * @clock_info: an array of clock information structures describing the clocks + * which are implemented by the CGU + * @num_clocks: the number of entries in clock_info + * @np: the device tree node which causes this CGU to be probed + * + * Return: a pointer to the CGU instance if initialisation is successful, + * otherwise NULL. + */ +struct ingenic_cgu * +ingenic_cgu_new(const struct ingenic_cgu_clk_info *clock_info, + unsigned num_clocks, struct device_node *np); + +/** + * ingenic_cgu_register_clocks() - Registers the clocks + * @cgu: pointer to cgu data + * + * Register the clocks described by the CGU with the common clock framework. + * + * Return: 0 on success or -errno if unsuccesful. + */ +int ingenic_cgu_register_clocks(struct ingenic_cgu *cgu); + +#endif /* __DRIVERS_CLK_INGENIC_CGU_H__ */ diff --git a/drivers/clk/ingenic/jz4740-cgu.c b/drivers/clk/ingenic/jz4740-cgu.c new file mode 100644 index 000000000000..305a26c2a800 --- /dev/null +++ b/drivers/clk/ingenic/jz4740-cgu.c @@ -0,0 +1,303 @@ +/* + * Ingenic JZ4740 SoC CGU driver + * + * Copyright (c) 2015 Imagination Technologies + * Author: Paul Burton <paul.burton@imgtec.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/of.h> +#include <dt-bindings/clock/jz4740-cgu.h> +#include <asm/mach-jz4740/clock.h> +#include "cgu.h" + +/* CGU register offsets */ +#define CGU_REG_CPCCR 0x00 +#define CGU_REG_LCR 0x04 +#define CGU_REG_CPPCR 0x10 +#define CGU_REG_CLKGR 0x20 +#define CGU_REG_SCR 0x24 +#define CGU_REG_I2SCDR 0x60 +#define CGU_REG_LPCDR 0x64 +#define CGU_REG_MSCCDR 0x68 +#define CGU_REG_UHCCDR 0x6c +#define CGU_REG_SSICDR 0x74 + +/* bits within a PLL control register */ +#define PLLCTL_M_SHIFT 23 +#define PLLCTL_M_MASK (0x1ff << PLLCTL_M_SHIFT) +#define PLLCTL_N_SHIFT 18 +#define PLLCTL_N_MASK (0x1f << PLLCTL_N_SHIFT) +#define PLLCTL_OD_SHIFT 16 +#define PLLCTL_OD_MASK (0x3 << PLLCTL_OD_SHIFT) +#define PLLCTL_STABLE (1 << 10) +#define PLLCTL_BYPASS (1 << 9) +#define PLLCTL_ENABLE (1 << 8) + +/* bits within the LCR register */ +#define LCR_SLEEP (1 << 0) + +/* bits within the CLKGR register */ +#define CLKGR_UDC (1 << 11) + +static struct ingenic_cgu *cgu; + +static const s8 pll_od_encoding[4] = { + 0x0, 0x1, -1, 0x3, +}; + +static const struct ingenic_cgu_clk_info jz4740_cgu_clocks[] = { + + /* External clocks */ + + [JZ4740_CLK_EXT] = { "ext", CGU_CLK_EXT }, + [JZ4740_CLK_RTC] = { "rtc", CGU_CLK_EXT }, + + [JZ4740_CLK_PLL] = { + "pll", CGU_CLK_PLL, + .parents = { JZ4740_CLK_EXT, -1, -1, -1 }, + .pll = { + .reg = CGU_REG_CPPCR, + .m_shift = 23, + .m_bits = 9, + .m_offset = 2, + .n_shift = 18, + .n_bits = 5, + .n_offset = 2, + .od_shift = 16, + .od_bits = 2, + .od_max = 4, + .od_encoding = pll_od_encoding, + .stable_bit = 10, + .bypass_bit = 9, + .enable_bit = 8, + }, + }, + + /* Muxes & dividers */ + + [JZ4740_CLK_PLL_HALF] = { + "pll half", CGU_CLK_DIV, + .parents = { JZ4740_CLK_PLL, -1, -1, -1 }, + .div = { CGU_REG_CPCCR, 21, 1, -1, -1, -1 }, + }, + + [JZ4740_CLK_CCLK] = { + "cclk", CGU_CLK_DIV, + .parents = { JZ4740_CLK_PLL, -1, -1, -1 }, + .div = { CGU_REG_CPCCR, 0, 4, 22, -1, -1 }, + }, + + [JZ4740_CLK_HCLK] = { + "hclk", CGU_CLK_DIV, + .parents = { JZ4740_CLK_PLL, -1, -1, -1 }, + .div = { CGU_REG_CPCCR, 4, 4, 22, -1, -1 }, + }, + + [JZ4740_CLK_PCLK] = { + "pclk", CGU_CLK_DIV, + .parents = { JZ4740_CLK_PLL, -1, -1, -1 }, + .div = { CGU_REG_CPCCR, 8, 4, 22, -1, -1 }, + }, + + [JZ4740_CLK_MCLK] = { + "mclk", CGU_CLK_DIV, + .parents = { JZ4740_CLK_PLL, -1, -1, -1 }, + .div = { CGU_REG_CPCCR, 12, 4, 22, -1, -1 }, + }, + + [JZ4740_CLK_LCD] = { + "lcd", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4740_CLK_PLL_HALF, -1, -1, -1 }, + .div = { CGU_REG_CPCCR, 16, 5, 22, -1, -1 }, + .gate = { CGU_REG_CLKGR, 10 }, + }, + + [JZ4740_CLK_LCD_PCLK] = { + "lcd_pclk", CGU_CLK_DIV, + .parents = { JZ4740_CLK_PLL_HALF, -1, -1, -1 }, + .div = { CGU_REG_LPCDR, 0, 11, -1, -1, -1 }, + }, + + [JZ4740_CLK_I2S] = { + "i2s", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4740_CLK_EXT, JZ4740_CLK_PLL_HALF, -1, -1 }, + .mux = { CGU_REG_CPCCR, 31, 1 }, + .div = { CGU_REG_I2SCDR, 0, 8, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 6 }, + }, + + [JZ4740_CLK_SPI] = { + "spi", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4740_CLK_EXT, JZ4740_CLK_PLL, -1, -1 }, + .mux = { CGU_REG_SSICDR, 31, 1 }, + .div = { CGU_REG_SSICDR, 0, 4, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 4 }, + }, + + [JZ4740_CLK_MMC] = { + "mmc", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4740_CLK_PLL_HALF, -1, -1, -1 }, + .div = { CGU_REG_MSCCDR, 0, 5, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 7 }, + }, + + [JZ4740_CLK_UHC] = { + "uhc", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4740_CLK_PLL_HALF, -1, -1, -1 }, + .div = { CGU_REG_UHCCDR, 0, 4, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 14 }, + }, + + [JZ4740_CLK_UDC] = { + "udc", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { JZ4740_CLK_EXT, JZ4740_CLK_PLL_HALF, -1, -1 }, + .mux = { CGU_REG_CPCCR, 29, 1 }, + .div = { CGU_REG_CPCCR, 23, 6, -1, -1, -1 }, + .gate = { CGU_REG_SCR, 6 }, + }, + + /* Gate-only clocks */ + + [JZ4740_CLK_UART0] = { + "uart0", CGU_CLK_GATE, + .parents = { JZ4740_CLK_EXT, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 0 }, + }, + + [JZ4740_CLK_UART1] = { + "uart1", CGU_CLK_GATE, + .parents = { JZ4740_CLK_EXT, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 15 }, + }, + + [JZ4740_CLK_DMA] = { + "dma", CGU_CLK_GATE, + .parents = { JZ4740_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 12 }, + }, + + [JZ4740_CLK_IPU] = { + "ipu", CGU_CLK_GATE, + .parents = { JZ4740_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 13 }, + }, + + [JZ4740_CLK_ADC] = { + "adc", CGU_CLK_GATE, + .parents = { JZ4740_CLK_EXT, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 8 }, + }, + + [JZ4740_CLK_I2C] = { + "i2c", CGU_CLK_GATE, + .parents = { JZ4740_CLK_EXT, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 3 }, + }, + + [JZ4740_CLK_AIC] = { + "aic", CGU_CLK_GATE, + .parents = { JZ4740_CLK_EXT, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 5 }, + }, +}; + +static void __init jz4740_cgu_init(struct device_node *np) +{ + int retval; + + cgu = ingenic_cgu_new(jz4740_cgu_clocks, + ARRAY_SIZE(jz4740_cgu_clocks), np); + if (!cgu) { + pr_err("%s: failed to initialise CGU\n", __func__); + return; + } + + retval = ingenic_cgu_register_clocks(cgu); + if (retval) + pr_err("%s: failed to register CGU Clocks\n", __func__); +} +CLK_OF_DECLARE(jz4740_cgu, "ingenic,jz4740-cgu", jz4740_cgu_init); + +void jz4740_clock_set_wait_mode(enum jz4740_wait_mode mode) +{ + uint32_t lcr = readl(cgu->base + CGU_REG_LCR); + + switch (mode) { + case JZ4740_WAIT_MODE_IDLE: + lcr &= ~LCR_SLEEP; + break; + + case JZ4740_WAIT_MODE_SLEEP: + lcr |= LCR_SLEEP; + break; + } + + writel(lcr, cgu->base + CGU_REG_LCR); +} + +void jz4740_clock_udc_disable_auto_suspend(void) +{ + uint32_t clkgr = readl(cgu->base + CGU_REG_CLKGR); + + clkgr &= ~CLKGR_UDC; + writel(clkgr, cgu->base + CGU_REG_CLKGR); +} +EXPORT_SYMBOL_GPL(jz4740_clock_udc_disable_auto_suspend); + +void jz4740_clock_udc_enable_auto_suspend(void) +{ + uint32_t clkgr = readl(cgu->base + CGU_REG_CLKGR); + + clkgr |= CLKGR_UDC; + writel(clkgr, cgu->base + CGU_REG_CLKGR); +} +EXPORT_SYMBOL_GPL(jz4740_clock_udc_enable_auto_suspend); + +#define JZ_CLOCK_GATE_UART0 BIT(0) +#define JZ_CLOCK_GATE_TCU BIT(1) +#define JZ_CLOCK_GATE_DMAC BIT(12) + +void jz4740_clock_suspend(void) +{ + uint32_t clkgr, cppcr; + + clkgr = readl(cgu->base + CGU_REG_CLKGR); + clkgr |= JZ_CLOCK_GATE_TCU | JZ_CLOCK_GATE_DMAC | JZ_CLOCK_GATE_UART0; + writel(clkgr, cgu->base + CGU_REG_CLKGR); + + cppcr = readl(cgu->base + CGU_REG_CPPCR); + cppcr &= ~BIT(jz4740_cgu_clocks[JZ4740_CLK_PLL].pll.enable_bit); + writel(cppcr, cgu->base + CGU_REG_CPPCR); +} + +void jz4740_clock_resume(void) +{ + uint32_t clkgr, cppcr, stable; + + cppcr = readl(cgu->base + CGU_REG_CPPCR); + cppcr |= BIT(jz4740_cgu_clocks[JZ4740_CLK_PLL].pll.enable_bit); + writel(cppcr, cgu->base + CGU_REG_CPPCR); + + stable = BIT(jz4740_cgu_clocks[JZ4740_CLK_PLL].pll.stable_bit); + do { + cppcr = readl(cgu->base + CGU_REG_CPPCR); + } while (!(cppcr & stable)); + + clkgr = readl(cgu->base + CGU_REG_CLKGR); + clkgr &= ~JZ_CLOCK_GATE_TCU; + clkgr &= ~JZ_CLOCK_GATE_DMAC; + clkgr &= ~JZ_CLOCK_GATE_UART0; + writel(clkgr, cgu->base + CGU_REG_CLKGR); +} diff --git a/drivers/clk/ingenic/jz4780-cgu.c b/drivers/clk/ingenic/jz4780-cgu.c new file mode 100644 index 000000000000..431f962300b6 --- /dev/null +++ b/drivers/clk/ingenic/jz4780-cgu.c @@ -0,0 +1,733 @@ +/* + * Ingenic JZ4780 SoC CGU driver + * + * Copyright (c) 2013-2015 Imagination Technologies + * Author: Paul Burton <paul.burton@imgtec.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/of.h> +#include <dt-bindings/clock/jz4780-cgu.h> +#include "cgu.h" + +/* CGU register offsets */ +#define CGU_REG_CLOCKCONTROL 0x00 +#define CGU_REG_PLLCONTROL 0x0c +#define CGU_REG_APLL 0x10 +#define CGU_REG_MPLL 0x14 +#define CGU_REG_EPLL 0x18 +#define CGU_REG_VPLL 0x1c +#define CGU_REG_CLKGR0 0x20 +#define CGU_REG_OPCR 0x24 +#define CGU_REG_CLKGR1 0x28 +#define CGU_REG_DDRCDR 0x2c +#define CGU_REG_VPUCDR 0x30 +#define CGU_REG_USBPCR 0x3c +#define CGU_REG_USBRDT 0x40 +#define CGU_REG_USBVBFIL 0x44 +#define CGU_REG_USBPCR1 0x48 +#define CGU_REG_LP0CDR 0x54 +#define CGU_REG_I2SCDR 0x60 +#define CGU_REG_LP1CDR 0x64 +#define CGU_REG_MSC0CDR 0x68 +#define CGU_REG_UHCCDR 0x6c +#define CGU_REG_SSICDR 0x74 +#define CGU_REG_CIMCDR 0x7c +#define CGU_REG_PCMCDR 0x84 +#define CGU_REG_GPUCDR 0x88 +#define CGU_REG_HDMICDR 0x8c +#define CGU_REG_MSC1CDR 0xa4 +#define CGU_REG_MSC2CDR 0xa8 +#define CGU_REG_BCHCDR 0xac +#define CGU_REG_CLOCKSTATUS 0xd4 + +/* bits within the OPCR register */ +#define OPCR_SPENDN0 (1 << 7) +#define OPCR_SPENDN1 (1 << 6) + +/* bits within the USBPCR register */ +#define USBPCR_USB_MODE BIT(31) +#define USBPCR_IDPULLUP_MASK (0x3 << 28) +#define USBPCR_COMMONONN BIT(25) +#define USBPCR_VBUSVLDEXT BIT(24) +#define USBPCR_VBUSVLDEXTSEL BIT(23) +#define USBPCR_POR BIT(22) +#define USBPCR_OTG_DISABLE BIT(20) +#define USBPCR_COMPDISTUNE_MASK (0x7 << 17) +#define USBPCR_OTGTUNE_MASK (0x7 << 14) +#define USBPCR_SQRXTUNE_MASK (0x7 << 11) +#define USBPCR_TXFSLSTUNE_MASK (0xf << 7) +#define USBPCR_TXPREEMPHTUNE BIT(6) +#define USBPCR_TXHSXVTUNE_MASK (0x3 << 4) +#define USBPCR_TXVREFTUNE_MASK 0xf + +/* bits within the USBPCR1 register */ +#define USBPCR1_REFCLKSEL_SHIFT 26 +#define USBPCR1_REFCLKSEL_MASK (0x3 << USBPCR1_REFCLKSEL_SHIFT) +#define USBPCR1_REFCLKSEL_CORE (0x2 << USBPCR1_REFCLKSEL_SHIFT) +#define USBPCR1_REFCLKDIV_SHIFT 24 +#define USBPCR1_REFCLKDIV_MASK (0x3 << USBPCR1_REFCLKDIV_SHIFT) +#define USBPCR1_REFCLKDIV_19_2 (0x3 << USBPCR1_REFCLKDIV_SHIFT) +#define USBPCR1_REFCLKDIV_48 (0x2 << USBPCR1_REFCLKDIV_SHIFT) +#define USBPCR1_REFCLKDIV_24 (0x1 << USBPCR1_REFCLKDIV_SHIFT) +#define USBPCR1_REFCLKDIV_12 (0x0 << USBPCR1_REFCLKDIV_SHIFT) +#define USBPCR1_USB_SEL BIT(28) +#define USBPCR1_WORD_IF0 BIT(19) +#define USBPCR1_WORD_IF1 BIT(18) + +/* bits within the USBRDT register */ +#define USBRDT_VBFIL_LD_EN BIT(25) +#define USBRDT_USBRDT_MASK 0x7fffff + +/* bits within the USBVBFIL register */ +#define USBVBFIL_IDDIGFIL_SHIFT 16 +#define USBVBFIL_IDDIGFIL_MASK (0xffff << USBVBFIL_IDDIGFIL_SHIFT) +#define USBVBFIL_USBVBFIL_MASK (0xffff) + +static struct ingenic_cgu *cgu; + +static u8 jz4780_otg_phy_get_parent(struct clk_hw *hw) +{ + /* we only use CLKCORE, revisit if that ever changes */ + return 0; +} + +static int jz4780_otg_phy_set_parent(struct clk_hw *hw, u8 idx) +{ + unsigned long flags; + u32 usbpcr1; + + if (idx > 0) + return -EINVAL; + + spin_lock_irqsave(&cgu->lock, flags); + + usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1); + usbpcr1 &= ~USBPCR1_REFCLKSEL_MASK; + /* we only use CLKCORE */ + usbpcr1 |= USBPCR1_REFCLKSEL_CORE; + writel(usbpcr1, cgu->base + CGU_REG_USBPCR1); + + spin_unlock_irqrestore(&cgu->lock, flags); + return 0; +} + +static unsigned long jz4780_otg_phy_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + u32 usbpcr1; + unsigned refclk_div; + + usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1); + refclk_div = usbpcr1 & USBPCR1_REFCLKDIV_MASK; + + switch (refclk_div) { + case USBPCR1_REFCLKDIV_12: + return 12000000; + + case USBPCR1_REFCLKDIV_24: + return 24000000; + + case USBPCR1_REFCLKDIV_48: + return 48000000; + + case USBPCR1_REFCLKDIV_19_2: + return 19200000; + } + + BUG(); + return parent_rate; +} + +static long jz4780_otg_phy_round_rate(struct clk_hw *hw, unsigned long req_rate, + unsigned long *parent_rate) +{ + if (req_rate < 15600000) + return 12000000; + + if (req_rate < 21600000) + return 19200000; + + if (req_rate < 36000000) + return 24000000; + + return 48000000; +} + +static int jz4780_otg_phy_set_rate(struct clk_hw *hw, unsigned long req_rate, + unsigned long parent_rate) +{ + unsigned long flags; + u32 usbpcr1, div_bits; + + switch (req_rate) { + case 12000000: + div_bits = USBPCR1_REFCLKDIV_12; + break; + + case 19200000: + div_bits = USBPCR1_REFCLKDIV_19_2; + break; + + case 24000000: + div_bits = USBPCR1_REFCLKDIV_24; + break; + + case 48000000: + div_bits = USBPCR1_REFCLKDIV_48; + break; + + default: + return -EINVAL; + } + + spin_lock_irqsave(&cgu->lock, flags); + + usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1); + usbpcr1 &= ~USBPCR1_REFCLKDIV_MASK; + usbpcr1 |= div_bits; + writel(usbpcr1, cgu->base + CGU_REG_USBPCR1); + + spin_unlock_irqrestore(&cgu->lock, flags); + return 0; +} + +static struct clk_ops jz4780_otg_phy_ops = { + .get_parent = jz4780_otg_phy_get_parent, + .set_parent = jz4780_otg_phy_set_parent, + + .recalc_rate = jz4780_otg_phy_recalc_rate, + .round_rate = jz4780_otg_phy_round_rate, + .set_rate = jz4780_otg_phy_set_rate, +}; + +static const s8 pll_od_encoding[16] = { + 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, + 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf, +}; + +static const struct ingenic_cgu_clk_info jz4780_cgu_clocks[] = { + + /* External clocks */ + + [JZ4780_CLK_EXCLK] = { "ext", CGU_CLK_EXT }, + [JZ4780_CLK_RTCLK] = { "rtc", CGU_CLK_EXT }, + + /* PLLs */ + +#define DEF_PLL(name) { \ + .reg = CGU_REG_ ## name, \ + .m_shift = 19, \ + .m_bits = 13, \ + .m_offset = 1, \ + .n_shift = 13, \ + .n_bits = 6, \ + .n_offset = 1, \ + .od_shift = 9, \ + .od_bits = 4, \ + .od_max = 16, \ + .od_encoding = pll_od_encoding, \ + .stable_bit = 6, \ + .bypass_bit = 1, \ + .enable_bit = 0, \ +} + + [JZ4780_CLK_APLL] = { + "apll", CGU_CLK_PLL, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .pll = DEF_PLL(APLL), + }, + + [JZ4780_CLK_MPLL] = { + "mpll", CGU_CLK_PLL, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .pll = DEF_PLL(MPLL), + }, + + [JZ4780_CLK_EPLL] = { + "epll", CGU_CLK_PLL, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .pll = DEF_PLL(EPLL), + }, + + [JZ4780_CLK_VPLL] = { + "vpll", CGU_CLK_PLL, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .pll = DEF_PLL(VPLL), + }, + +#undef DEF_PLL + + /* Custom (SoC-specific) OTG PHY */ + + [JZ4780_CLK_OTGPHY] = { + "otg_phy", CGU_CLK_CUSTOM, + .parents = { -1, -1, JZ4780_CLK_EXCLK, -1 }, + .custom = { &jz4780_otg_phy_ops }, + }, + + /* Muxes & dividers */ + + [JZ4780_CLK_SCLKA] = { + "sclk_a", CGU_CLK_MUX, + .parents = { -1, JZ4780_CLK_APLL, JZ4780_CLK_EXCLK, + JZ4780_CLK_RTCLK }, + .mux = { CGU_REG_CLOCKCONTROL, 30, 2 }, + }, + + [JZ4780_CLK_CPUMUX] = { + "cpumux", CGU_CLK_MUX, + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_EPLL }, + .mux = { CGU_REG_CLOCKCONTROL, 28, 2 }, + }, + + [JZ4780_CLK_CPU] = { + "cpu", CGU_CLK_DIV, + .parents = { JZ4780_CLK_CPUMUX, -1, -1, -1 }, + .div = { CGU_REG_CLOCKCONTROL, 0, 4, 22, -1, -1 }, + }, + + [JZ4780_CLK_L2CACHE] = { + "l2cache", CGU_CLK_DIV, + .parents = { JZ4780_CLK_CPUMUX, -1, -1, -1 }, + .div = { CGU_REG_CLOCKCONTROL, 4, 4, -1, -1, -1 }, + }, + + [JZ4780_CLK_AHB0] = { + "ahb0", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_EPLL }, + .mux = { CGU_REG_CLOCKCONTROL, 26, 2 }, + .div = { CGU_REG_CLOCKCONTROL, 8, 4, 21, -1, -1 }, + }, + + [JZ4780_CLK_AHB2PMUX] = { + "ahb2_apb_mux", CGU_CLK_MUX, + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_RTCLK }, + .mux = { CGU_REG_CLOCKCONTROL, 24, 2 }, + }, + + [JZ4780_CLK_AHB2] = { + "ahb2", CGU_CLK_DIV, + .parents = { JZ4780_CLK_AHB2PMUX, -1, -1, -1 }, + .div = { CGU_REG_CLOCKCONTROL, 12, 4, 20, -1, -1 }, + }, + + [JZ4780_CLK_PCLK] = { + "pclk", CGU_CLK_DIV, + .parents = { JZ4780_CLK_AHB2PMUX, -1, -1, -1 }, + .div = { CGU_REG_CLOCKCONTROL, 16, 4, 20, -1, -1 }, + }, + + [JZ4780_CLK_DDR] = { + "ddr", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1 }, + .mux = { CGU_REG_DDRCDR, 30, 2 }, + .div = { CGU_REG_DDRCDR, 0, 4, 29, 28, 27 }, + }, + + [JZ4780_CLK_VPU] = { + "vpu", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_EPLL, -1 }, + .mux = { CGU_REG_VPUCDR, 30, 2 }, + .div = { CGU_REG_VPUCDR, 0, 4, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR1, 2 }, + }, + + [JZ4780_CLK_I2SPLL] = { + "i2s_pll", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_EPLL, -1, -1 }, + .mux = { CGU_REG_I2SCDR, 30, 1 }, + .div = { CGU_REG_I2SCDR, 0, 8, 29, 28, 27 }, + }, + + [JZ4780_CLK_I2S] = { + "i2s", CGU_CLK_MUX, + .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_I2SPLL, -1, -1 }, + .mux = { CGU_REG_I2SCDR, 31, 1 }, + }, + + [JZ4780_CLK_LCD0PIXCLK] = { + "lcd0pixclk", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_VPLL, -1 }, + .mux = { CGU_REG_LP0CDR, 30, 2 }, + .div = { CGU_REG_LP0CDR, 0, 8, 28, 27, 26 }, + }, + + [JZ4780_CLK_LCD1PIXCLK] = { + "lcd1pixclk", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_VPLL, -1 }, + .mux = { CGU_REG_LP1CDR, 30, 2 }, + .div = { CGU_REG_LP1CDR, 0, 8, 28, 27, 26 }, + }, + + [JZ4780_CLK_MSCMUX] = { + "msc_mux", CGU_CLK_MUX, + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1 }, + .mux = { CGU_REG_MSC0CDR, 30, 2 }, + }, + + [JZ4780_CLK_MSC0] = { + "msc0", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 }, + .div = { CGU_REG_MSC0CDR, 0, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR0, 3 }, + }, + + [JZ4780_CLK_MSC1] = { + "msc1", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 }, + .div = { CGU_REG_MSC1CDR, 0, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR0, 11 }, + }, + + [JZ4780_CLK_MSC2] = { + "msc2", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 }, + .div = { CGU_REG_MSC2CDR, 0, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR0, 12 }, + }, + + [JZ4780_CLK_UHC] = { + "uhc", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_EPLL, JZ4780_CLK_OTGPHY }, + .mux = { CGU_REG_UHCCDR, 30, 2 }, + .div = { CGU_REG_UHCCDR, 0, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR0, 24 }, + }, + + [JZ4780_CLK_SSIPLL] = { + "ssi_pll", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1, -1 }, + .mux = { CGU_REG_SSICDR, 30, 1 }, + .div = { CGU_REG_SSICDR, 0, 8, 29, 28, 27 }, + }, + + [JZ4780_CLK_SSI] = { + "ssi", CGU_CLK_MUX, + .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_SSIPLL, -1, -1 }, + .mux = { CGU_REG_SSICDR, 31, 1 }, + }, + + [JZ4780_CLK_CIMMCLK] = { + "cim_mclk", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1, -1 }, + .mux = { CGU_REG_CIMCDR, 31, 1 }, + .div = { CGU_REG_CIMCDR, 0, 8, 30, 29, 28 }, + }, + + [JZ4780_CLK_PCMPLL] = { + "pcm_pll", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_EPLL, JZ4780_CLK_VPLL }, + .mux = { CGU_REG_PCMCDR, 29, 2 }, + .div = { CGU_REG_PCMCDR, 0, 8, 28, 27, 26 }, + }, + + [JZ4780_CLK_PCM] = { + "pcm", CGU_CLK_MUX | CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_PCMPLL, -1, -1 }, + .mux = { CGU_REG_PCMCDR, 31, 1 }, + .gate = { CGU_REG_CLKGR1, 3 }, + }, + + [JZ4780_CLK_GPU] = { + "gpu", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_EPLL }, + .mux = { CGU_REG_GPUCDR, 30, 2 }, + .div = { CGU_REG_GPUCDR, 0, 4, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR1, 4 }, + }, + + [JZ4780_CLK_HDMI] = { + "hdmi", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_VPLL, -1 }, + .mux = { CGU_REG_HDMICDR, 30, 2 }, + .div = { CGU_REG_HDMICDR, 0, 8, 29, 28, 26 }, + .gate = { CGU_REG_CLKGR1, 9 }, + }, + + [JZ4780_CLK_BCH] = { + "bch", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, + JZ4780_CLK_EPLL }, + .mux = { CGU_REG_BCHCDR, 30, 2 }, + .div = { CGU_REG_BCHCDR, 0, 4, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR0, 1 }, + }, + + /* Gate-only clocks */ + + [JZ4780_CLK_NEMC] = { + "nemc", CGU_CLK_GATE, + .parents = { JZ4780_CLK_AHB2, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 0 }, + }, + + [JZ4780_CLK_OTG0] = { + "otg0", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 2 }, + }, + + [JZ4780_CLK_SSI0] = { + "ssi0", CGU_CLK_GATE, + .parents = { JZ4780_CLK_SSI, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 4 }, + }, + + [JZ4780_CLK_SMB0] = { + "smb0", CGU_CLK_GATE, + .parents = { JZ4780_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 5 }, + }, + + [JZ4780_CLK_SMB1] = { + "smb1", CGU_CLK_GATE, + .parents = { JZ4780_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 6 }, + }, + + [JZ4780_CLK_SCC] = { + "scc", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 7 }, + }, + + [JZ4780_CLK_AIC] = { + "aic", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 8 }, + }, + + [JZ4780_CLK_TSSI0] = { + "tssi0", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 9 }, + }, + + [JZ4780_CLK_OWI] = { + "owi", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 10 }, + }, + + [JZ4780_CLK_KBC] = { + "kbc", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 13 }, + }, + + [JZ4780_CLK_SADC] = { + "sadc", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 14 }, + }, + + [JZ4780_CLK_UART0] = { + "uart0", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 15 }, + }, + + [JZ4780_CLK_UART1] = { + "uart1", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 16 }, + }, + + [JZ4780_CLK_UART2] = { + "uart2", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 17 }, + }, + + [JZ4780_CLK_UART3] = { + "uart3", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 18 }, + }, + + [JZ4780_CLK_SSI1] = { + "ssi1", CGU_CLK_GATE, + .parents = { JZ4780_CLK_SSI, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 19 }, + }, + + [JZ4780_CLK_SSI2] = { + "ssi2", CGU_CLK_GATE, + .parents = { JZ4780_CLK_SSI, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 20 }, + }, + + [JZ4780_CLK_PDMA] = { + "pdma", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 21 }, + }, + + [JZ4780_CLK_GPS] = { + "gps", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 22 }, + }, + + [JZ4780_CLK_MAC] = { + "mac", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 23 }, + }, + + [JZ4780_CLK_SMB2] = { + "smb2", CGU_CLK_GATE, + .parents = { JZ4780_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 24 }, + }, + + [JZ4780_CLK_CIM] = { + "cim", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 26 }, + }, + + [JZ4780_CLK_LCD] = { + "lcd", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 28 }, + }, + + [JZ4780_CLK_TVE] = { + "tve", CGU_CLK_GATE, + .parents = { JZ4780_CLK_LCD, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 27 }, + }, + + [JZ4780_CLK_IPU] = { + "ipu", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 29 }, + }, + + [JZ4780_CLK_DDR0] = { + "ddr0", CGU_CLK_GATE, + .parents = { JZ4780_CLK_DDR, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 30 }, + }, + + [JZ4780_CLK_DDR1] = { + "ddr1", CGU_CLK_GATE, + .parents = { JZ4780_CLK_DDR, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 31 }, + }, + + [JZ4780_CLK_SMB3] = { + "smb3", CGU_CLK_GATE, + .parents = { JZ4780_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 0 }, + }, + + [JZ4780_CLK_TSSI1] = { + "tssi1", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 1 }, + }, + + [JZ4780_CLK_COMPRESS] = { + "compress", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 5 }, + }, + + [JZ4780_CLK_AIC1] = { + "aic1", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 6 }, + }, + + [JZ4780_CLK_GPVLC] = { + "gpvlc", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 7 }, + }, + + [JZ4780_CLK_OTG1] = { + "otg1", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 8 }, + }, + + [JZ4780_CLK_UART4] = { + "uart4", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 10 }, + }, + + [JZ4780_CLK_AHBMON] = { + "ahb_mon", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 11 }, + }, + + [JZ4780_CLK_SMB4] = { + "smb4", CGU_CLK_GATE, + .parents = { JZ4780_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 12 }, + }, + + [JZ4780_CLK_DES] = { + "des", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 13 }, + }, + + [JZ4780_CLK_X2D] = { + "x2d", CGU_CLK_GATE, + .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 14 }, + }, + + [JZ4780_CLK_CORE1] = { + "core1", CGU_CLK_GATE, + .parents = { JZ4780_CLK_CPU, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 15 }, + }, + +}; + +static void __init jz4780_cgu_init(struct device_node *np) +{ + int retval; + + cgu = ingenic_cgu_new(jz4780_cgu_clocks, + ARRAY_SIZE(jz4780_cgu_clocks), np); + if (!cgu) { + pr_err("%s: failed to initialise CGU\n", __func__); + return; + } + + retval = ingenic_cgu_register_clocks(cgu); + if (retval) { + pr_err("%s: failed to register CGU Clocks\n", __func__); + return; + } +} +CLK_OF_DECLARE(jz4780_cgu, "ingenic,jz4780-cgu", jz4780_cgu_init); diff --git a/drivers/clk/keystone/pll.c b/drivers/clk/keystone/pll.c index 0dd8a4b12747..4a375ead70e9 100644 --- a/drivers/clk/keystone/pll.c +++ b/drivers/clk/keystone/pll.c @@ -37,7 +37,8 @@ * Main PLL or any other PLLs in the device such as ARM PLL, DDR PLL * or PA PLL available on keystone2. These PLLs are controlled by * this register. Main PLL is controlled by a PLL controller. - * @pllm: PLL register map address + * @pllm: PLL register map address for multiplier bits + * @pllod: PLL register map address for post divider bits * @pll_ctl0: PLL controller map address * @pllm_lower_mask: multiplier lower mask * @pllm_upper_mask: multiplier upper mask @@ -53,6 +54,7 @@ struct clk_pll_data { u32 phy_pllm; u32 phy_pll_ctl0; void __iomem *pllm; + void __iomem *pllod; void __iomem *pll_ctl0; u32 pllm_lower_mask; u32 pllm_upper_mask; @@ -102,7 +104,11 @@ static unsigned long clk_pllclk_recalc(struct clk_hw *hw, /* read post divider from od bits*/ postdiv = ((val & pll_data->clkod_mask) >> pll_data->clkod_shift) + 1; - else + else if (pll_data->pllod) { + postdiv = readl(pll_data->pllod); + postdiv = ((postdiv & pll_data->clkod_mask) >> + pll_data->clkod_shift) + 1; + } else postdiv = pll_data->postdiv; rate /= (prediv + 1); @@ -172,12 +178,21 @@ static void __init _of_pll_clk_init(struct device_node *node, bool pllctrl) /* assume the PLL has output divider register bits */ pll_data->clkod_mask = CLKOD_MASK; pll_data->clkod_shift = CLKOD_SHIFT; + + /* + * Check if there is an post-divider register. If not + * assume od bits are part of control register. + */ + i = of_property_match_string(node, "reg-names", + "post-divider"); + pll_data->pllod = of_iomap(node, i); } i = of_property_match_string(node, "reg-names", "control"); pll_data->pll_ctl0 = of_iomap(node, i); if (!pll_data->pll_ctl0) { pr_err("%s: ioremap failed\n", __func__); + iounmap(pll_data->pllod); goto out; } @@ -193,6 +208,7 @@ static void __init _of_pll_clk_init(struct device_node *node, bool pllctrl) pll_data->pllm = of_iomap(node, i); if (!pll_data->pllm) { iounmap(pll_data->pll_ctl0); + iounmap(pll_data->pllod); goto out; } } diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile new file mode 100644 index 000000000000..8e4b2a4635b9 --- /dev/null +++ b/drivers/clk/mediatek/Makefile @@ -0,0 +1,4 @@ +obj-y += clk-mtk.o clk-pll.o clk-gate.o +obj-$(CONFIG_RESET_CONTROLLER) += reset.o +obj-y += clk-mt8135.o +obj-y += clk-mt8173.o diff --git a/drivers/clk/mediatek/clk-gate.c b/drivers/clk/mediatek/clk-gate.c new file mode 100644 index 000000000000..57020368a693 --- /dev/null +++ b/drivers/clk/mediatek/clk-gate.c @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2014 MediaTek Inc. + * Author: James Liao <jamesjj.liao@mediatek.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/of.h> +#include <linux/of_address.h> + +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/clkdev.h> + +#include "clk-mtk.h" +#include "clk-gate.h" + +static int mtk_cg_bit_is_cleared(struct clk_hw *hw) +{ + struct mtk_clk_gate *cg = to_clk_gate(hw); + u32 val; + + regmap_read(cg->regmap, cg->sta_ofs, &val); + + val &= BIT(cg->bit); + + return val == 0; +} + +static int mtk_cg_bit_is_set(struct clk_hw *hw) +{ + struct mtk_clk_gate *cg = to_clk_gate(hw); + u32 val; + + regmap_read(cg->regmap, cg->sta_ofs, &val); + + val &= BIT(cg->bit); + + return val != 0; +} + +static void mtk_cg_set_bit(struct clk_hw *hw) +{ + struct mtk_clk_gate *cg = to_clk_gate(hw); + + regmap_write(cg->regmap, cg->set_ofs, BIT(cg->bit)); +} + +static void mtk_cg_clr_bit(struct clk_hw *hw) +{ + struct mtk_clk_gate *cg = to_clk_gate(hw); + + regmap_write(cg->regmap, cg->clr_ofs, BIT(cg->bit)); +} + +static int mtk_cg_enable(struct clk_hw *hw) +{ + mtk_cg_clr_bit(hw); + + return 0; +} + +static void mtk_cg_disable(struct clk_hw *hw) +{ + mtk_cg_set_bit(hw); +} + +static int mtk_cg_enable_inv(struct clk_hw *hw) +{ + mtk_cg_set_bit(hw); + + return 0; +} + +static void mtk_cg_disable_inv(struct clk_hw *hw) +{ + mtk_cg_clr_bit(hw); +} + +const struct clk_ops mtk_clk_gate_ops_setclr = { + .is_enabled = mtk_cg_bit_is_cleared, + .enable = mtk_cg_enable, + .disable = mtk_cg_disable, +}; + +const struct clk_ops mtk_clk_gate_ops_setclr_inv = { + .is_enabled = mtk_cg_bit_is_set, + .enable = mtk_cg_enable_inv, + .disable = mtk_cg_disable_inv, +}; + +struct clk *mtk_clk_register_gate( + const char *name, + const char *parent_name, + struct regmap *regmap, + int set_ofs, + int clr_ofs, + int sta_ofs, + u8 bit, + const struct clk_ops *ops) +{ + struct mtk_clk_gate *cg; + struct clk *clk; + struct clk_init_data init = {}; + + cg = kzalloc(sizeof(*cg), GFP_KERNEL); + if (!cg) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.flags = CLK_SET_RATE_PARENT; + init.parent_names = parent_name ? &parent_name : NULL; + init.num_parents = parent_name ? 1 : 0; + init.ops = ops; + + cg->regmap = regmap; + cg->set_ofs = set_ofs; + cg->clr_ofs = clr_ofs; + cg->sta_ofs = sta_ofs; + cg->bit = bit; + + cg->hw.init = &init; + + clk = clk_register(NULL, &cg->hw); + if (IS_ERR(clk)) + kfree(cg); + + return clk; +} diff --git a/drivers/clk/mediatek/clk-gate.h b/drivers/clk/mediatek/clk-gate.h new file mode 100644 index 000000000000..6b6780b1e9c5 --- /dev/null +++ b/drivers/clk/mediatek/clk-gate.h @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2014 MediaTek Inc. + * Author: James Liao <jamesjj.liao@mediatek.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __DRV_CLK_GATE_H +#define __DRV_CLK_GATE_H + +#include <linux/regmap.h> +#include <linux/clk.h> +#include <linux/clk-provider.h> + +struct mtk_clk_gate { + struct clk_hw hw; + struct regmap *regmap; + int set_ofs; + int clr_ofs; + int sta_ofs; + u8 bit; +}; + +static inline struct mtk_clk_gate *to_clk_gate(struct clk_hw *hw) +{ + return container_of(hw, struct mtk_clk_gate, hw); +} + +extern const struct clk_ops mtk_clk_gate_ops_setclr; +extern const struct clk_ops mtk_clk_gate_ops_setclr_inv; + +struct clk *mtk_clk_register_gate( + const char *name, + const char *parent_name, + struct regmap *regmap, + int set_ofs, + int clr_ofs, + int sta_ofs, + u8 bit, + const struct clk_ops *ops); + +#endif /* __DRV_CLK_GATE_H */ diff --git a/drivers/clk/mediatek/clk-mt8135.c b/drivers/clk/mediatek/clk-mt8135.c new file mode 100644 index 000000000000..08b4b849b491 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8135.c @@ -0,0 +1,644 @@ +/* + * Copyright (c) 2014 MediaTek Inc. + * Author: James Liao <jamesjj.liao@mediatek.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/slab.h> +#include <linux/mfd/syscon.h> +#include <dt-bindings/clock/mt8135-clk.h> + +#include "clk-mtk.h" +#include "clk-gate.h" + +static DEFINE_SPINLOCK(mt8135_clk_lock); + +static const struct mtk_fixed_factor root_clk_alias[] __initconst = { + FACTOR(CLK_TOP_DSI0_LNTC_DSICLK, "dsi0_lntc_dsiclk", "clk_null", 1, 1), + FACTOR(CLK_TOP_HDMITX_CLKDIG_CTS, "hdmitx_clkdig_cts", "clk_null", 1, 1), + FACTOR(CLK_TOP_CLKPH_MCK, "clkph_mck", "clk_null", 1, 1), + FACTOR(CLK_TOP_CPUM_TCK_IN, "cpum_tck_in", "clk_null", 1, 1), +}; + +static const struct mtk_fixed_factor top_divs[] __initconst = { + FACTOR(CLK_TOP_MAINPLL_806M, "mainpll_806m", "mainpll", 1, 2), + FACTOR(CLK_TOP_MAINPLL_537P3M, "mainpll_537p3m", "mainpll", 1, 3), + FACTOR(CLK_TOP_MAINPLL_322P4M, "mainpll_322p4m", "mainpll", 1, 5), + FACTOR(CLK_TOP_MAINPLL_230P3M, "mainpll_230p3m", "mainpll", 1, 7), + + FACTOR(CLK_TOP_UNIVPLL_624M, "univpll_624m", "univpll", 1, 2), + FACTOR(CLK_TOP_UNIVPLL_416M, "univpll_416m", "univpll", 1, 3), + FACTOR(CLK_TOP_UNIVPLL_249P6M, "univpll_249p6m", "univpll", 1, 5), + FACTOR(CLK_TOP_UNIVPLL_178P3M, "univpll_178p3m", "univpll", 1, 7), + FACTOR(CLK_TOP_UNIVPLL_48M, "univpll_48m", "univpll", 1, 26), + + FACTOR(CLK_TOP_MMPLL_D2, "mmpll_d2", "mmpll", 1, 2), + FACTOR(CLK_TOP_MMPLL_D3, "mmpll_d3", "mmpll", 1, 3), + FACTOR(CLK_TOP_MMPLL_D5, "mmpll_d5", "mmpll", 1, 5), + FACTOR(CLK_TOP_MMPLL_D7, "mmpll_d7", "mmpll", 1, 7), + FACTOR(CLK_TOP_MMPLL_D4, "mmpll_d4", "mmpll_d2", 1, 2), + FACTOR(CLK_TOP_MMPLL_D6, "mmpll_d6", "mmpll_d3", 1, 2), + + FACTOR(CLK_TOP_SYSPLL_D2, "syspll_d2", "mainpll_806m", 1, 1), + FACTOR(CLK_TOP_SYSPLL_D4, "syspll_d4", "mainpll_806m", 1, 2), + FACTOR(CLK_TOP_SYSPLL_D6, "syspll_d6", "mainpll_806m", 1, 3), + FACTOR(CLK_TOP_SYSPLL_D8, "syspll_d8", "mainpll_806m", 1, 4), + FACTOR(CLK_TOP_SYSPLL_D10, "syspll_d10", "mainpll_806m", 1, 5), + FACTOR(CLK_TOP_SYSPLL_D12, "syspll_d12", "mainpll_806m", 1, 6), + FACTOR(CLK_TOP_SYSPLL_D16, "syspll_d16", "mainpll_806m", 1, 8), + FACTOR(CLK_TOP_SYSPLL_D24, "syspll_d24", "mainpll_806m", 1, 12), + + FACTOR(CLK_TOP_SYSPLL_D3, "syspll_d3", "mainpll_537p3m", 1, 1), + + FACTOR(CLK_TOP_SYSPLL_D2P5, "syspll_d2p5", "mainpll_322p4m", 2, 1), + FACTOR(CLK_TOP_SYSPLL_D5, "syspll_d5", "mainpll_322p4m", 1, 1), + + FACTOR(CLK_TOP_SYSPLL_D3P5, "syspll_d3p5", "mainpll_230p3m", 2, 1), + + FACTOR(CLK_TOP_UNIVPLL1_D2, "univpll1_d2", "univpll_624m", 1, 2), + FACTOR(CLK_TOP_UNIVPLL1_D4, "univpll1_d4", "univpll_624m", 1, 4), + FACTOR(CLK_TOP_UNIVPLL1_D6, "univpll1_d6", "univpll_624m", 1, 6), + FACTOR(CLK_TOP_UNIVPLL1_D8, "univpll1_d8", "univpll_624m", 1, 8), + FACTOR(CLK_TOP_UNIVPLL1_D10, "univpll1_d10", "univpll_624m", 1, 10), + + FACTOR(CLK_TOP_UNIVPLL2_D2, "univpll2_d2", "univpll_416m", 1, 2), + FACTOR(CLK_TOP_UNIVPLL2_D4, "univpll2_d4", "univpll_416m", 1, 4), + FACTOR(CLK_TOP_UNIVPLL2_D6, "univpll2_d6", "univpll_416m", 1, 6), + FACTOR(CLK_TOP_UNIVPLL2_D8, "univpll2_d8", "univpll_416m", 1, 8), + + FACTOR(CLK_TOP_UNIVPLL_D3, "univpll_d3", "univpll_416m", 1, 1), + FACTOR(CLK_TOP_UNIVPLL_D5, "univpll_d5", "univpll_249p6m", 1, 1), + FACTOR(CLK_TOP_UNIVPLL_D7, "univpll_d7", "univpll_178p3m", 1, 1), + FACTOR(CLK_TOP_UNIVPLL_D10, "univpll_d10", "univpll_249p6m", 1, 2), + FACTOR(CLK_TOP_UNIVPLL_D26, "univpll_d26", "univpll_48m", 1, 1), + + FACTOR(CLK_TOP_APLL, "apll_ck", "audpll", 1, 1), + FACTOR(CLK_TOP_APLL_D4, "apll_d4", "audpll", 1, 4), + FACTOR(CLK_TOP_APLL_D8, "apll_d8", "audpll", 1, 8), + FACTOR(CLK_TOP_APLL_D16, "apll_d16", "audpll", 1, 16), + FACTOR(CLK_TOP_APLL_D24, "apll_d24", "audpll", 1, 24), + + FACTOR(CLK_TOP_LVDSPLL_D2, "lvdspll_d2", "lvdspll", 1, 2), + FACTOR(CLK_TOP_LVDSPLL_D4, "lvdspll_d4", "lvdspll", 1, 4), + FACTOR(CLK_TOP_LVDSPLL_D8, "lvdspll_d8", "lvdspll", 1, 8), + + FACTOR(CLK_TOP_LVDSTX_CLKDIG_CT, "lvdstx_clkdig_cts", "lvdspll", 1, 1), + FACTOR(CLK_TOP_VPLL_DPIX, "vpll_dpix_ck", "lvdspll", 1, 1), + + FACTOR(CLK_TOP_TVHDMI_H, "tvhdmi_h_ck", "tvdpll", 1, 1), + + FACTOR(CLK_TOP_HDMITX_CLKDIG_D2, "hdmitx_clkdig_d2", "hdmitx_clkdig_cts", 1, 2), + FACTOR(CLK_TOP_HDMITX_CLKDIG_D3, "hdmitx_clkdig_d3", "hdmitx_clkdig_cts", 1, 3), + + FACTOR(CLK_TOP_TVHDMI_D2, "tvhdmi_d2", "tvhdmi_h_ck", 1, 2), + FACTOR(CLK_TOP_TVHDMI_D4, "tvhdmi_d4", "tvhdmi_h_ck", 1, 4), + + FACTOR(CLK_TOP_MEMPLL_MCK_D4, "mempll_mck_d4", "clkph_mck", 1, 4), +}; + +static const char * const axi_parents[] __initconst = { + "clk26m", + "syspll_d3", + "syspll_d4", + "syspll_d6", + "univpll_d5", + "univpll2_d2", + "syspll_d3p5" +}; + +static const char * const smi_parents[] __initconst = { + "clk26m", + "clkph_mck", + "syspll_d2p5", + "syspll_d3", + "syspll_d8", + "univpll_d5", + "univpll1_d2", + "univpll1_d6", + "mmpll_d3", + "mmpll_d4", + "mmpll_d5", + "mmpll_d6", + "mmpll_d7", + "vdecpll", + "lvdspll" +}; + +static const char * const mfg_parents[] __initconst = { + "clk26m", + "univpll1_d4", + "syspll_d2", + "syspll_d2p5", + "syspll_d3", + "univpll_d5", + "univpll1_d2", + "mmpll_d2", + "mmpll_d3", + "mmpll_d4", + "mmpll_d5", + "mmpll_d6", + "mmpll_d7" +}; + +static const char * const irda_parents[] __initconst = { + "clk26m", + "univpll2_d8", + "univpll1_d6" +}; + +static const char * const cam_parents[] __initconst = { + "clk26m", + "syspll_d3", + "syspll_d3p5", + "syspll_d4", + "univpll_d5", + "univpll2_d2", + "univpll_d7", + "univpll1_d4" +}; + +static const char * const aud_intbus_parents[] __initconst = { + "clk26m", + "syspll_d6", + "univpll_d10" +}; + +static const char * const jpg_parents[] __initconst = { + "clk26m", + "syspll_d5", + "syspll_d4", + "syspll_d3", + "univpll_d7", + "univpll2_d2", + "univpll_d5" +}; + +static const char * const disp_parents[] __initconst = { + "clk26m", + "syspll_d3p5", + "syspll_d3", + "univpll2_d2", + "univpll_d5", + "univpll1_d2", + "lvdspll", + "vdecpll" +}; + +static const char * const msdc30_parents[] __initconst = { + "clk26m", + "syspll_d6", + "syspll_d5", + "univpll1_d4", + "univpll2_d4", + "msdcpll" +}; + +static const char * const usb20_parents[] __initconst = { + "clk26m", + "univpll2_d6", + "univpll1_d10" +}; + +static const char * const venc_parents[] __initconst = { + "clk26m", + "syspll_d3", + "syspll_d8", + "univpll_d5", + "univpll1_d6", + "mmpll_d4", + "mmpll_d5", + "mmpll_d6" +}; + +static const char * const spi_parents[] __initconst = { + "clk26m", + "syspll_d6", + "syspll_d8", + "syspll_d10", + "univpll1_d6", + "univpll1_d8" +}; + +static const char * const uart_parents[] __initconst = { + "clk26m", + "univpll2_d8" +}; + +static const char * const mem_parents[] __initconst = { + "clk26m", + "clkph_mck" +}; + +static const char * const camtg_parents[] __initconst = { + "clk26m", + "univpll_d26", + "univpll1_d6", + "syspll_d16", + "syspll_d8" +}; + +static const char * const audio_parents[] __initconst = { + "clk26m", + "syspll_d24" +}; + +static const char * const fix_parents[] __initconst = { + "rtc32k", + "clk26m", + "univpll_d5", + "univpll_d7", + "univpll1_d2", + "univpll1_d4", + "univpll1_d6", + "univpll1_d8" +}; + +static const char * const vdec_parents[] __initconst = { + "clk26m", + "vdecpll", + "clkph_mck", + "syspll_d2p5", + "syspll_d3", + "syspll_d3p5", + "syspll_d4", + "syspll_d5", + "syspll_d6", + "syspll_d8", + "univpll1_d2", + "univpll2_d2", + "univpll_d7", + "univpll_d10", + "univpll2_d4", + "lvdspll" +}; + +static const char * const ddrphycfg_parents[] __initconst = { + "clk26m", + "axi_sel", + "syspll_d12" +}; + +static const char * const dpilvds_parents[] __initconst = { + "clk26m", + "lvdspll", + "lvdspll_d2", + "lvdspll_d4", + "lvdspll_d8" +}; + +static const char * const pmicspi_parents[] __initconst = { + "clk26m", + "univpll2_d6", + "syspll_d8", + "syspll_d10", + "univpll1_d10", + "mempll_mck_d4", + "univpll_d26", + "syspll_d24" +}; + +static const char * const smi_mfg_as_parents[] __initconst = { + "clk26m", + "smi_sel", + "mfg_sel", + "mem_sel" +}; + +static const char * const gcpu_parents[] __initconst = { + "clk26m", + "syspll_d4", + "univpll_d7", + "syspll_d5", + "syspll_d6" +}; + +static const char * const dpi1_parents[] __initconst = { + "clk26m", + "tvhdmi_h_ck", + "tvhdmi_d2", + "tvhdmi_d4" +}; + +static const char * const cci_parents[] __initconst = { + "clk26m", + "mainpll_537p3m", + "univpll_d3", + "syspll_d2p5", + "syspll_d3", + "syspll_d5" +}; + +static const char * const apll_parents[] __initconst = { + "clk26m", + "apll_ck", + "apll_d4", + "apll_d8", + "apll_d16", + "apll_d24" +}; + +static const char * const hdmipll_parents[] __initconst = { + "clk26m", + "hdmitx_clkdig_cts", + "hdmitx_clkdig_d2", + "hdmitx_clkdig_d3" +}; + +static const struct mtk_composite top_muxes[] __initconst = { + /* CLK_CFG_0 */ + MUX_GATE(CLK_TOP_AXI_SEL, "axi_sel", axi_parents, + 0x0140, 0, 3, INVALID_MUX_GATE_BIT), + MUX_GATE(CLK_TOP_SMI_SEL, "smi_sel", smi_parents, 0x0140, 8, 4, 15), + MUX_GATE(CLK_TOP_MFG_SEL, "mfg_sel", mfg_parents, 0x0140, 16, 4, 23), + MUX_GATE(CLK_TOP_IRDA_SEL, "irda_sel", irda_parents, 0x0140, 24, 2, 31), + /* CLK_CFG_1 */ + MUX_GATE(CLK_TOP_CAM_SEL, "cam_sel", cam_parents, 0x0144, 0, 3, 7), + MUX_GATE(CLK_TOP_AUD_INTBUS_SEL, "aud_intbus_sel", aud_intbus_parents, + 0x0144, 8, 2, 15), + MUX_GATE(CLK_TOP_JPG_SEL, "jpg_sel", jpg_parents, 0x0144, 16, 3, 23), + MUX_GATE(CLK_TOP_DISP_SEL, "disp_sel", disp_parents, 0x0144, 24, 3, 31), + /* CLK_CFG_2 */ + MUX_GATE(CLK_TOP_MSDC30_1_SEL, "msdc30_1_sel", msdc30_parents, 0x0148, 0, 3, 7), + MUX_GATE(CLK_TOP_MSDC30_2_SEL, "msdc30_2_sel", msdc30_parents, 0x0148, 8, 3, 15), + MUX_GATE(CLK_TOP_MSDC30_3_SEL, "msdc30_3_sel", msdc30_parents, 0x0148, 16, 3, 23), + MUX_GATE(CLK_TOP_MSDC30_4_SEL, "msdc30_4_sel", msdc30_parents, 0x0148, 24, 3, 31), + /* CLK_CFG_3 */ + MUX_GATE(CLK_TOP_USB20_SEL, "usb20_sel", usb20_parents, 0x014c, 0, 2, 7), + /* CLK_CFG_4 */ + MUX_GATE(CLK_TOP_VENC_SEL, "venc_sel", venc_parents, 0x0150, 8, 3, 15), + MUX_GATE(CLK_TOP_SPI_SEL, "spi_sel", spi_parents, 0x0150, 16, 3, 23), + MUX_GATE(CLK_TOP_UART_SEL, "uart_sel", uart_parents, 0x0150, 24, 2, 31), + /* CLK_CFG_6 */ + MUX_GATE(CLK_TOP_MEM_SEL, "mem_sel", mem_parents, 0x0158, 0, 2, 7), + MUX_GATE(CLK_TOP_CAMTG_SEL, "camtg_sel", camtg_parents, 0x0158, 8, 3, 15), + MUX_GATE(CLK_TOP_AUDIO_SEL, "audio_sel", audio_parents, 0x0158, 24, 2, 31), + /* CLK_CFG_7 */ + MUX_GATE(CLK_TOP_FIX_SEL, "fix_sel", fix_parents, 0x015c, 0, 3, 7), + MUX_GATE(CLK_TOP_VDEC_SEL, "vdec_sel", vdec_parents, 0x015c, 8, 4, 15), + MUX_GATE(CLK_TOP_DDRPHYCFG_SEL, "ddrphycfg_sel", ddrphycfg_parents, + 0x015c, 16, 2, 23), + MUX_GATE(CLK_TOP_DPILVDS_SEL, "dpilvds_sel", dpilvds_parents, 0x015c, 24, 3, 31), + /* CLK_CFG_8 */ + MUX_GATE(CLK_TOP_PMICSPI_SEL, "pmicspi_sel", pmicspi_parents, 0x0164, 0, 3, 7), + MUX_GATE(CLK_TOP_MSDC30_0_SEL, "msdc30_0_sel", msdc30_parents, 0x0164, 8, 3, 15), + MUX_GATE(CLK_TOP_SMI_MFG_AS_SEL, "smi_mfg_as_sel", smi_mfg_as_parents, + 0x0164, 16, 2, 23), + MUX_GATE(CLK_TOP_GCPU_SEL, "gcpu_sel", gcpu_parents, 0x0164, 24, 3, 31), + /* CLK_CFG_9 */ + MUX_GATE(CLK_TOP_DPI1_SEL, "dpi1_sel", dpi1_parents, 0x0168, 0, 2, 7), + MUX_GATE(CLK_TOP_CCI_SEL, "cci_sel", cci_parents, 0x0168, 8, 3, 15), + MUX_GATE(CLK_TOP_APLL_SEL, "apll_sel", apll_parents, 0x0168, 16, 3, 23), + MUX_GATE(CLK_TOP_HDMIPLL_SEL, "hdmipll_sel", hdmipll_parents, 0x0168, 24, 2, 31), +}; + +static const struct mtk_gate_regs infra_cg_regs = { + .set_ofs = 0x0040, + .clr_ofs = 0x0044, + .sta_ofs = 0x0048, +}; + +#define GATE_ICG(_id, _name, _parent, _shift) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &infra_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +static const struct mtk_gate infra_clks[] __initconst = { + GATE_ICG(CLK_INFRA_PMIC_WRAP, "pmic_wrap_ck", "axi_sel", 23), + GATE_ICG(CLK_INFRA_PMICSPI, "pmicspi_ck", "pmicspi_sel", 22), + GATE_ICG(CLK_INFRA_CCIF1_AP_CTRL, "ccif1_ap_ctrl", "axi_sel", 21), + GATE_ICG(CLK_INFRA_CCIF0_AP_CTRL, "ccif0_ap_ctrl", "axi_sel", 20), + GATE_ICG(CLK_INFRA_KP, "kp_ck", "axi_sel", 16), + GATE_ICG(CLK_INFRA_CPUM, "cpum_ck", "cpum_tck_in", 15), + GATE_ICG(CLK_INFRA_M4U, "m4u_ck", "mem_sel", 8), + GATE_ICG(CLK_INFRA_MFGAXI, "mfgaxi_ck", "axi_sel", 7), + GATE_ICG(CLK_INFRA_DEVAPC, "devapc_ck", "axi_sel", 6), + GATE_ICG(CLK_INFRA_AUDIO, "audio_ck", "aud_intbus_sel", 5), + GATE_ICG(CLK_INFRA_MFG_BUS, "mfg_bus_ck", "axi_sel", 2), + GATE_ICG(CLK_INFRA_SMI, "smi_ck", "smi_sel", 1), + GATE_ICG(CLK_INFRA_DBGCLK, "dbgclk_ck", "axi_sel", 0), +}; + +static const struct mtk_gate_regs peri0_cg_regs = { + .set_ofs = 0x0008, + .clr_ofs = 0x0010, + .sta_ofs = 0x0018, +}; + +static const struct mtk_gate_regs peri1_cg_regs = { + .set_ofs = 0x000c, + .clr_ofs = 0x0014, + .sta_ofs = 0x001c, +}; + +#define GATE_PERI0(_id, _name, _parent, _shift) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &peri0_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +#define GATE_PERI1(_id, _name, _parent, _shift) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &peri1_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +static const struct mtk_gate peri_gates[] __initconst = { + /* PERI0 */ + GATE_PERI0(CLK_PERI_I2C5, "i2c5_ck", "axi_sel", 31), + GATE_PERI0(CLK_PERI_I2C4, "i2c4_ck", "axi_sel", 30), + GATE_PERI0(CLK_PERI_I2C3, "i2c3_ck", "axi_sel", 29), + GATE_PERI0(CLK_PERI_I2C2, "i2c2_ck", "axi_sel", 28), + GATE_PERI0(CLK_PERI_I2C1, "i2c1_ck", "axi_sel", 27), + GATE_PERI0(CLK_PERI_I2C0, "i2c0_ck", "axi_sel", 26), + GATE_PERI0(CLK_PERI_UART3, "uart3_ck", "axi_sel", 25), + GATE_PERI0(CLK_PERI_UART2, "uart2_ck", "axi_sel", 24), + GATE_PERI0(CLK_PERI_UART1, "uart1_ck", "axi_sel", 23), + GATE_PERI0(CLK_PERI_UART0, "uart0_ck", "axi_sel", 22), + GATE_PERI0(CLK_PERI_IRDA, "irda_ck", "irda_sel", 21), + GATE_PERI0(CLK_PERI_NLI, "nli_ck", "axi_sel", 20), + GATE_PERI0(CLK_PERI_MD_HIF, "md_hif_ck", "axi_sel", 19), + GATE_PERI0(CLK_PERI_AP_HIF, "ap_hif_ck", "axi_sel", 18), + GATE_PERI0(CLK_PERI_MSDC30_3, "msdc30_3_ck", "msdc30_4_sel", 17), + GATE_PERI0(CLK_PERI_MSDC30_2, "msdc30_2_ck", "msdc30_3_sel", 16), + GATE_PERI0(CLK_PERI_MSDC30_1, "msdc30_1_ck", "msdc30_2_sel", 15), + GATE_PERI0(CLK_PERI_MSDC20_2, "msdc20_2_ck", "msdc30_1_sel", 14), + GATE_PERI0(CLK_PERI_MSDC20_1, "msdc20_1_ck", "msdc30_0_sel", 13), + GATE_PERI0(CLK_PERI_AP_DMA, "ap_dma_ck", "axi_sel", 12), + GATE_PERI0(CLK_PERI_USB1, "usb1_ck", "usb20_sel", 11), + GATE_PERI0(CLK_PERI_USB0, "usb0_ck", "usb20_sel", 10), + GATE_PERI0(CLK_PERI_PWM, "pwm_ck", "axi_sel", 9), + GATE_PERI0(CLK_PERI_PWM7, "pwm7_ck", "axi_sel", 8), + GATE_PERI0(CLK_PERI_PWM6, "pwm6_ck", "axi_sel", 7), + GATE_PERI0(CLK_PERI_PWM5, "pwm5_ck", "axi_sel", 6), + GATE_PERI0(CLK_PERI_PWM4, "pwm4_ck", "axi_sel", 5), + GATE_PERI0(CLK_PERI_PWM3, "pwm3_ck", "axi_sel", 4), + GATE_PERI0(CLK_PERI_PWM2, "pwm2_ck", "axi_sel", 3), + GATE_PERI0(CLK_PERI_PWM1, "pwm1_ck", "axi_sel", 2), + GATE_PERI0(CLK_PERI_THERM, "therm_ck", "axi_sel", 1), + GATE_PERI0(CLK_PERI_NFI, "nfi_ck", "axi_sel", 0), + /* PERI1 */ + GATE_PERI1(CLK_PERI_USBSLV, "usbslv_ck", "axi_sel", 8), + GATE_PERI1(CLK_PERI_USB1_MCU, "usb1_mcu_ck", "axi_sel", 7), + GATE_PERI1(CLK_PERI_USB0_MCU, "usb0_mcu_ck", "axi_sel", 6), + GATE_PERI1(CLK_PERI_GCPU, "gcpu_ck", "gcpu_sel", 5), + GATE_PERI1(CLK_PERI_FHCTL, "fhctl_ck", "clk26m", 4), + GATE_PERI1(CLK_PERI_SPI1, "spi1_ck", "spi_sel", 3), + GATE_PERI1(CLK_PERI_AUXADC, "auxadc_ck", "clk26m", 2), + GATE_PERI1(CLK_PERI_PERI_PWRAP, "peri_pwrap_ck", "axi_sel", 1), + GATE_PERI1(CLK_PERI_I2C6, "i2c6_ck", "axi_sel", 0), +}; + +static const char * const uart_ck_sel_parents[] __initconst = { + "clk26m", + "uart_sel", +}; + +static const struct mtk_composite peri_clks[] __initconst = { + MUX(CLK_PERI_UART0_SEL, "uart0_ck_sel", uart_ck_sel_parents, 0x40c, 0, 1), + MUX(CLK_PERI_UART1_SEL, "uart1_ck_sel", uart_ck_sel_parents, 0x40c, 1, 1), + MUX(CLK_PERI_UART2_SEL, "uart2_ck_sel", uart_ck_sel_parents, 0x40c, 2, 1), + MUX(CLK_PERI_UART3_SEL, "uart3_ck_sel", uart_ck_sel_parents, 0x40c, 3, 1), +}; + +static void __init mtk_topckgen_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + void __iomem *base; + int r; + + base = of_iomap(node, 0); + if (!base) { + pr_err("%s(): ioremap failed\n", __func__); + return; + } + + clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK); + + mtk_clk_register_factors(root_clk_alias, ARRAY_SIZE(root_clk_alias), clk_data); + mtk_clk_register_factors(top_divs, ARRAY_SIZE(top_divs), clk_data); + mtk_clk_register_composites(top_muxes, ARRAY_SIZE(top_muxes), base, + &mt8135_clk_lock, clk_data); + + clk_prepare_enable(clk_data->clks[CLK_TOP_CCI_SEL]); + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); +} +CLK_OF_DECLARE(mtk_topckgen, "mediatek,mt8135-topckgen", mtk_topckgen_init); + +static void __init mtk_infrasys_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + int r; + + clk_data = mtk_alloc_clk_data(CLK_INFRA_NR_CLK); + + mtk_clk_register_gates(node, infra_clks, ARRAY_SIZE(infra_clks), + clk_data); + + clk_prepare_enable(clk_data->clks[CLK_INFRA_M4U]); + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); + + mtk_register_reset_controller(node, 2, 0x30); +} +CLK_OF_DECLARE(mtk_infrasys, "mediatek,mt8135-infracfg", mtk_infrasys_init); + +static void __init mtk_pericfg_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + int r; + void __iomem *base; + + base = of_iomap(node, 0); + if (!base) { + pr_err("%s(): ioremap failed\n", __func__); + return; + } + + clk_data = mtk_alloc_clk_data(CLK_PERI_NR_CLK); + + mtk_clk_register_gates(node, peri_gates, ARRAY_SIZE(peri_gates), + clk_data); + mtk_clk_register_composites(peri_clks, ARRAY_SIZE(peri_clks), base, + &mt8135_clk_lock, clk_data); + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); + + mtk_register_reset_controller(node, 2, 0); +} +CLK_OF_DECLARE(mtk_pericfg, "mediatek,mt8135-pericfg", mtk_pericfg_init); + +#define MT8135_PLL_FMAX (2000 * MHZ) +#define CON0_MT8135_RST_BAR BIT(27) + +#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, _pd_reg, _pd_shift, _tuner_reg, _pcw_reg, _pcw_shift) { \ + .id = _id, \ + .name = _name, \ + .reg = _reg, \ + .pwr_reg = _pwr_reg, \ + .en_mask = _en_mask, \ + .flags = _flags, \ + .rst_bar_mask = CON0_MT8135_RST_BAR, \ + .fmax = MT8135_PLL_FMAX, \ + .pcwbits = _pcwbits, \ + .pd_reg = _pd_reg, \ + .pd_shift = _pd_shift, \ + .tuner_reg = _tuner_reg, \ + .pcw_reg = _pcw_reg, \ + .pcw_shift = _pcw_shift, \ + } + +static const struct mtk_pll_data plls[] = { + PLL(CLK_APMIXED_ARMPLL1, "armpll1", 0x200, 0x218, 0x80000001, 0, 21, 0x204, 24, 0x0, 0x204, 0), + PLL(CLK_APMIXED_ARMPLL2, "armpll2", 0x2cc, 0x2e4, 0x80000001, 0, 21, 0x2d0, 24, 0x0, 0x2d0, 0), + PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x21c, 0x234, 0xf0000001, HAVE_RST_BAR, 21, 0x21c, 6, 0x0, 0x220, 0), + PLL(CLK_APMIXED_UNIVPLL, "univpll", 0x238, 0x250, 0xf3000001, HAVE_RST_BAR, 7, 0x238, 6, 0x0, 0x238, 9), + PLL(CLK_APMIXED_MMPLL, "mmpll", 0x254, 0x26c, 0xf0000001, HAVE_RST_BAR, 21, 0x254, 6, 0x0, 0x258, 0), + PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x278, 0x290, 0x80000001, 0, 21, 0x278, 6, 0x0, 0x27c, 0), + PLL(CLK_APMIXED_TVDPLL, "tvdpll", 0x294, 0x2ac, 0x80000001, 0, 31, 0x294, 6, 0x0, 0x298, 0), + PLL(CLK_APMIXED_LVDSPLL, "lvdspll", 0x2b0, 0x2c8, 0x80000001, 0, 21, 0x2b0, 6, 0x0, 0x2b4, 0), + PLL(CLK_APMIXED_AUDPLL, "audpll", 0x2e8, 0x300, 0x80000001, 0, 31, 0x2e8, 6, 0x2f8, 0x2ec, 0), + PLL(CLK_APMIXED_VDECPLL, "vdecpll", 0x304, 0x31c, 0x80000001, 0, 21, 0x2b0, 6, 0x0, 0x308, 0), +}; + +static void __init mtk_apmixedsys_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + + clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK); + if (!clk_data) + return; + + mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data); +} +CLK_OF_DECLARE(mtk_apmixedsys, "mediatek,mt8135-apmixedsys", + mtk_apmixedsys_init); diff --git a/drivers/clk/mediatek/clk-mt8173.c b/drivers/clk/mediatek/clk-mt8173.c new file mode 100644 index 000000000000..4b9e04cdf7e8 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8173.c @@ -0,0 +1,830 @@ +/* + * Copyright (c) 2014 MediaTek Inc. + * Author: James Liao <jamesjj.liao@mediatek.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/slab.h> +#include <linux/mfd/syscon.h> + +#include "clk-mtk.h" +#include "clk-gate.h" + +#include <dt-bindings/clock/mt8173-clk.h> + +static DEFINE_SPINLOCK(mt8173_clk_lock); + +static const struct mtk_fixed_factor root_clk_alias[] __initconst = { + FACTOR(CLK_TOP_CLKPH_MCK_O, "clkph_mck_o", "clk_null", 1, 1), + FACTOR(CLK_TOP_DPI, "dpi_ck", "clk_null", 1, 1), + FACTOR(CLK_TOP_USB_SYSPLL_125M, "usb_syspll_125m", "clk_null", 1, 1), + FACTOR(CLK_TOP_HDMITX_DIG_CTS, "hdmitx_dig_cts", "clk_null", 1, 1), +}; + +static const struct mtk_fixed_factor top_divs[] __initconst = { + FACTOR(CLK_TOP_ARMCA7PLL_754M, "armca7pll_754m", "armca7pll", 1, 2), + FACTOR(CLK_TOP_ARMCA7PLL_502M, "armca7pll_502m", "armca7pll", 1, 3), + + FACTOR(CLK_TOP_MAIN_H546M, "main_h546m", "mainpll", 1, 2), + FACTOR(CLK_TOP_MAIN_H364M, "main_h364m", "mainpll", 1, 3), + FACTOR(CLK_TOP_MAIN_H218P4M, "main_h218p4m", "mainpll", 1, 5), + FACTOR(CLK_TOP_MAIN_H156M, "main_h156m", "mainpll", 1, 7), + + FACTOR(CLK_TOP_TVDPLL_445P5M, "tvdpll_445p5m", "tvdpll", 1, 4), + FACTOR(CLK_TOP_TVDPLL_594M, "tvdpll_594m", "tvdpll", 1, 3), + + FACTOR(CLK_TOP_UNIV_624M, "univ_624m", "univpll", 1, 2), + FACTOR(CLK_TOP_UNIV_416M, "univ_416m", "univpll", 1, 3), + FACTOR(CLK_TOP_UNIV_249P6M, "univ_249p6m", "univpll", 1, 5), + FACTOR(CLK_TOP_UNIV_178P3M, "univ_178p3m", "univpll", 1, 7), + FACTOR(CLK_TOP_UNIV_48M, "univ_48m", "univpll", 1, 26), + + FACTOR(CLK_TOP_CLKRTC_EXT, "clkrtc_ext", "clk32k", 1, 1), + FACTOR(CLK_TOP_CLKRTC_INT, "clkrtc_int", "clk26m", 1, 793), + FACTOR(CLK_TOP_FPC, "fpc_ck", "clk26m", 1, 1), + + FACTOR(CLK_TOP_HDMITXPLL_D2, "hdmitxpll_d2", "hdmitx_dig_cts", 1, 2), + FACTOR(CLK_TOP_HDMITXPLL_D3, "hdmitxpll_d3", "hdmitx_dig_cts", 1, 3), + + FACTOR(CLK_TOP_ARMCA7PLL_D2, "armca7pll_d2", "armca7pll_754m", 1, 1), + FACTOR(CLK_TOP_ARMCA7PLL_D3, "armca7pll_d3", "armca7pll_502m", 1, 1), + + FACTOR(CLK_TOP_APLL1, "apll1_ck", "apll1", 1, 1), + FACTOR(CLK_TOP_APLL2, "apll2_ck", "apll2", 1, 1), + + FACTOR(CLK_TOP_DMPLL, "dmpll_ck", "clkph_mck_o", 1, 1), + FACTOR(CLK_TOP_DMPLL_D2, "dmpll_d2", "clkph_mck_o", 1, 2), + FACTOR(CLK_TOP_DMPLL_D4, "dmpll_d4", "clkph_mck_o", 1, 4), + FACTOR(CLK_TOP_DMPLL_D8, "dmpll_d8", "clkph_mck_o", 1, 8), + FACTOR(CLK_TOP_DMPLL_D16, "dmpll_d16", "clkph_mck_o", 1, 16), + + FACTOR(CLK_TOP_LVDSPLL_D2, "lvdspll_d2", "lvdspll", 1, 2), + FACTOR(CLK_TOP_LVDSPLL_D4, "lvdspll_d4", "lvdspll", 1, 4), + FACTOR(CLK_TOP_LVDSPLL_D8, "lvdspll_d8", "lvdspll", 1, 8), + + FACTOR(CLK_TOP_MMPLL, "mmpll_ck", "mmpll", 1, 1), + FACTOR(CLK_TOP_MMPLL_D2, "mmpll_d2", "mmpll", 1, 2), + + FACTOR(CLK_TOP_MSDCPLL, "msdcpll_ck", "msdcpll", 1, 1), + FACTOR(CLK_TOP_MSDCPLL_D2, "msdcpll_d2", "msdcpll", 1, 2), + FACTOR(CLK_TOP_MSDCPLL_D4, "msdcpll_d4", "msdcpll", 1, 4), + FACTOR(CLK_TOP_MSDCPLL2, "msdcpll2_ck", "msdcpll2", 1, 1), + FACTOR(CLK_TOP_MSDCPLL2_D2, "msdcpll2_d2", "msdcpll2", 1, 2), + FACTOR(CLK_TOP_MSDCPLL2_D4, "msdcpll2_d4", "msdcpll2", 1, 4), + + FACTOR(CLK_TOP_SYSPLL_D2, "syspll_d2", "main_h546m", 1, 1), + FACTOR(CLK_TOP_SYSPLL1_D2, "syspll1_d2", "main_h546m", 1, 2), + FACTOR(CLK_TOP_SYSPLL1_D4, "syspll1_d4", "main_h546m", 1, 4), + FACTOR(CLK_TOP_SYSPLL1_D8, "syspll1_d8", "main_h546m", 1, 8), + FACTOR(CLK_TOP_SYSPLL1_D16, "syspll1_d16", "main_h546m", 1, 16), + FACTOR(CLK_TOP_SYSPLL_D3, "syspll_d3", "main_h364m", 1, 1), + FACTOR(CLK_TOP_SYSPLL2_D2, "syspll2_d2", "main_h364m", 1, 2), + FACTOR(CLK_TOP_SYSPLL2_D4, "syspll2_d4", "main_h364m", 1, 4), + FACTOR(CLK_TOP_SYSPLL_D5, "syspll_d5", "main_h218p4m", 1, 1), + FACTOR(CLK_TOP_SYSPLL3_D2, "syspll3_d2", "main_h218p4m", 1, 2), + FACTOR(CLK_TOP_SYSPLL3_D4, "syspll3_d4", "main_h218p4m", 1, 4), + FACTOR(CLK_TOP_SYSPLL_D7, "syspll_d7", "main_h156m", 1, 1), + FACTOR(CLK_TOP_SYSPLL4_D2, "syspll4_d2", "main_h156m", 1, 2), + FACTOR(CLK_TOP_SYSPLL4_D4, "syspll4_d4", "main_h156m", 1, 4), + + FACTOR(CLK_TOP_TVDPLL, "tvdpll_ck", "tvdpll_594m", 1, 1), + FACTOR(CLK_TOP_TVDPLL_D2, "tvdpll_d2", "tvdpll_594m", 1, 2), + FACTOR(CLK_TOP_TVDPLL_D4, "tvdpll_d4", "tvdpll_594m", 1, 4), + FACTOR(CLK_TOP_TVDPLL_D8, "tvdpll_d8", "tvdpll_594m", 1, 8), + FACTOR(CLK_TOP_TVDPLL_D16, "tvdpll_d16", "tvdpll_594m", 1, 16), + + FACTOR(CLK_TOP_UNIVPLL_D2, "univpll_d2", "univ_624m", 1, 1), + FACTOR(CLK_TOP_UNIVPLL1_D2, "univpll1_d2", "univ_624m", 1, 2), + FACTOR(CLK_TOP_UNIVPLL1_D4, "univpll1_d4", "univ_624m", 1, 4), + FACTOR(CLK_TOP_UNIVPLL1_D8, "univpll1_d8", "univ_624m", 1, 8), + FACTOR(CLK_TOP_UNIVPLL_D3, "univpll_d3", "univ_416m", 1, 1), + FACTOR(CLK_TOP_UNIVPLL2_D2, "univpll2_d2", "univ_416m", 1, 2), + FACTOR(CLK_TOP_UNIVPLL2_D4, "univpll2_d4", "univ_416m", 1, 4), + FACTOR(CLK_TOP_UNIVPLL2_D8, "univpll2_d8", "univ_416m", 1, 8), + FACTOR(CLK_TOP_UNIVPLL_D5, "univpll_d5", "univ_249p6m", 1, 1), + FACTOR(CLK_TOP_UNIVPLL3_D2, "univpll3_d2", "univ_249p6m", 1, 2), + FACTOR(CLK_TOP_UNIVPLL3_D4, "univpll3_d4", "univ_249p6m", 1, 4), + FACTOR(CLK_TOP_UNIVPLL3_D8, "univpll3_d8", "univ_249p6m", 1, 8), + FACTOR(CLK_TOP_UNIVPLL_D7, "univpll_d7", "univ_178p3m", 1, 1), + FACTOR(CLK_TOP_UNIVPLL_D26, "univpll_d26", "univ_48m", 1, 1), + FACTOR(CLK_TOP_UNIVPLL_D52, "univpll_d52", "univ_48m", 1, 2), + + FACTOR(CLK_TOP_VCODECPLL, "vcodecpll_ck", "vcodecpll", 1, 3), + FACTOR(CLK_TOP_VCODECPLL_370P5, "vcodecpll_370p5", "vcodecpll", 1, 4), + + FACTOR(CLK_TOP_VENCPLL, "vencpll_ck", "vencpll", 1, 1), + FACTOR(CLK_TOP_VENCPLL_D2, "vencpll_d2", "vencpll", 1, 2), + FACTOR(CLK_TOP_VENCPLL_D4, "vencpll_d4", "vencpll", 1, 4), +}; + +static const char * const axi_parents[] __initconst = { + "clk26m", + "syspll1_d2", + "syspll_d5", + "syspll1_d4", + "univpll_d5", + "univpll2_d2", + "dmpll_d2", + "dmpll_d4" +}; + +static const char * const mem_parents[] __initconst = { + "clk26m", + "dmpll_ck" +}; + +static const char * const ddrphycfg_parents[] __initconst = { + "clk26m", + "syspll1_d8" +}; + +static const char * const mm_parents[] __initconst = { + "clk26m", + "vencpll_d2", + "main_h364m", + "syspll1_d2", + "syspll_d5", + "syspll1_d4", + "univpll1_d2", + "univpll2_d2", + "dmpll_d2" +}; + +static const char * const pwm_parents[] __initconst = { + "clk26m", + "univpll2_d4", + "univpll3_d2", + "univpll1_d4" +}; + +static const char * const vdec_parents[] __initconst = { + "clk26m", + "vcodecpll_ck", + "tvdpll_445p5m", + "univpll_d3", + "vencpll_d2", + "syspll_d3", + "univpll1_d2", + "mmpll_d2", + "dmpll_d2", + "dmpll_d4" +}; + +static const char * const venc_parents[] __initconst = { + "clk26m", + "vcodecpll_ck", + "tvdpll_445p5m", + "univpll_d3", + "vencpll_d2", + "syspll_d3", + "univpll1_d2", + "univpll2_d2", + "dmpll_d2", + "dmpll_d4" +}; + +static const char * const mfg_parents[] __initconst = { + "clk26m", + "mmpll_ck", + "dmpll_ck", + "clk26m", + "clk26m", + "clk26m", + "clk26m", + "clk26m", + "clk26m", + "syspll_d3", + "syspll1_d2", + "syspll_d5", + "univpll_d3", + "univpll1_d2", + "univpll_d5", + "univpll2_d2" +}; + +static const char * const camtg_parents[] __initconst = { + "clk26m", + "univpll_d26", + "univpll2_d2", + "syspll3_d2", + "syspll3_d4", + "univpll1_d4" +}; + +static const char * const uart_parents[] __initconst = { + "clk26m", + "univpll2_d8" +}; + +static const char * const spi_parents[] __initconst = { + "clk26m", + "syspll3_d2", + "syspll1_d4", + "syspll4_d2", + "univpll3_d2", + "univpll2_d4", + "univpll1_d8" +}; + +static const char * const usb20_parents[] __initconst = { + "clk26m", + "univpll1_d8", + "univpll3_d4" +}; + +static const char * const usb30_parents[] __initconst = { + "clk26m", + "univpll3_d2", + "usb_syspll_125m", + "univpll2_d4" +}; + +static const char * const msdc50_0_h_parents[] __initconst = { + "clk26m", + "syspll1_d2", + "syspll2_d2", + "syspll4_d2", + "univpll_d5", + "univpll1_d4" +}; + +static const char * const msdc50_0_parents[] __initconst = { + "clk26m", + "msdcpll_ck", + "msdcpll_d2", + "univpll1_d4", + "syspll2_d2", + "syspll_d7", + "msdcpll_d4", + "vencpll_d4", + "tvdpll_ck", + "univpll_d2", + "univpll1_d2", + "mmpll_ck", + "msdcpll2_ck", + "msdcpll2_d2", + "msdcpll2_d4" +}; + +static const char * const msdc30_1_parents[] __initconst = { + "clk26m", + "univpll2_d2", + "msdcpll_d4", + "univpll1_d4", + "syspll2_d2", + "syspll_d7", + "univpll_d7", + "vencpll_d4" +}; + +static const char * const msdc30_2_parents[] __initconst = { + "clk26m", + "univpll2_d2", + "msdcpll_d4", + "univpll1_d4", + "syspll2_d2", + "syspll_d7", + "univpll_d7", + "vencpll_d2" +}; + +static const char * const msdc30_3_parents[] __initconst = { + "clk26m", + "msdcpll2_ck", + "msdcpll2_d2", + "univpll2_d2", + "msdcpll2_d4", + "msdcpll_d4", + "univpll1_d4", + "syspll2_d2", + "syspll_d7", + "univpll_d7", + "vencpll_d4", + "msdcpll_ck", + "msdcpll_d2", + "msdcpll_d4" +}; + +static const char * const audio_parents[] __initconst = { + "clk26m", + "syspll3_d4", + "syspll4_d4", + "syspll1_d16" +}; + +static const char * const aud_intbus_parents[] __initconst = { + "clk26m", + "syspll1_d4", + "syspll4_d2", + "univpll3_d2", + "univpll2_d8", + "dmpll_d4", + "dmpll_d8" +}; + +static const char * const pmicspi_parents[] __initconst = { + "clk26m", + "syspll1_d8", + "syspll3_d4", + "syspll1_d16", + "univpll3_d4", + "univpll_d26", + "dmpll_d8", + "dmpll_d16" +}; + +static const char * const scp_parents[] __initconst = { + "clk26m", + "syspll1_d2", + "univpll_d5", + "syspll_d5", + "dmpll_d2", + "dmpll_d4" +}; + +static const char * const atb_parents[] __initconst = { + "clk26m", + "syspll1_d2", + "univpll_d5", + "dmpll_d2" +}; + +static const char * const venc_lt_parents[] __initconst = { + "clk26m", + "univpll_d3", + "vcodecpll_ck", + "tvdpll_445p5m", + "vencpll_d2", + "syspll_d3", + "univpll1_d2", + "univpll2_d2", + "syspll1_d2", + "univpll_d5", + "vcodecpll_370p5", + "dmpll_ck" +}; + +static const char * const dpi0_parents[] __initconst = { + "clk26m", + "tvdpll_d2", + "tvdpll_d4", + "clk26m", + "clk26m", + "tvdpll_d8", + "tvdpll_d16" +}; + +static const char * const irda_parents[] __initconst = { + "clk26m", + "univpll2_d4", + "syspll2_d4" +}; + +static const char * const cci400_parents[] __initconst = { + "clk26m", + "vencpll_ck", + "armca7pll_754m", + "armca7pll_502m", + "univpll_d2", + "syspll_d2", + "msdcpll_ck", + "dmpll_ck" +}; + +static const char * const aud_1_parents[] __initconst = { + "clk26m", + "apll1_ck", + "univpll2_d4", + "univpll2_d8" +}; + +static const char * const aud_2_parents[] __initconst = { + "clk26m", + "apll2_ck", + "univpll2_d4", + "univpll2_d8" +}; + +static const char * const mem_mfg_in_parents[] __initconst = { + "clk26m", + "mmpll_ck", + "dmpll_ck", + "clk26m" +}; + +static const char * const axi_mfg_in_parents[] __initconst = { + "clk26m", + "axi_sel", + "dmpll_d2" +}; + +static const char * const scam_parents[] __initconst = { + "clk26m", + "syspll3_d2", + "univpll2_d4", + "dmpll_d4" +}; + +static const char * const spinfi_ifr_parents[] __initconst = { + "clk26m", + "univpll2_d8", + "univpll3_d4", + "syspll4_d2", + "univpll2_d4", + "univpll3_d2", + "syspll1_d4", + "univpll1_d4" +}; + +static const char * const hdmi_parents[] __initconst = { + "clk26m", + "hdmitx_dig_cts", + "hdmitxpll_d2", + "hdmitxpll_d3" +}; + +static const char * const dpilvds_parents[] __initconst = { + "clk26m", + "lvdspll", + "lvdspll_d2", + "lvdspll_d4", + "lvdspll_d8", + "fpc_ck" +}; + +static const char * const msdc50_2_h_parents[] __initconst = { + "clk26m", + "syspll1_d2", + "syspll2_d2", + "syspll4_d2", + "univpll_d5", + "univpll1_d4" +}; + +static const char * const hdcp_parents[] __initconst = { + "clk26m", + "syspll4_d2", + "syspll3_d4", + "univpll2_d4" +}; + +static const char * const hdcp_24m_parents[] __initconst = { + "clk26m", + "univpll_d26", + "univpll_d52", + "univpll2_d8" +}; + +static const char * const rtc_parents[] __initconst = { + "clkrtc_int", + "clkrtc_ext", + "clk26m", + "univpll3_d8" +}; + +static const char * const i2s0_m_ck_parents[] __initconst = { + "apll1_div1", + "apll2_div1" +}; + +static const char * const i2s1_m_ck_parents[] __initconst = { + "apll1_div2", + "apll2_div2" +}; + +static const char * const i2s2_m_ck_parents[] __initconst = { + "apll1_div3", + "apll2_div3" +}; + +static const char * const i2s3_m_ck_parents[] __initconst = { + "apll1_div4", + "apll2_div4" +}; + +static const char * const i2s3_b_ck_parents[] __initconst = { + "apll1_div5", + "apll2_div5" +}; + +static const struct mtk_composite top_muxes[] __initconst = { + /* CLK_CFG_0 */ + MUX(CLK_TOP_AXI_SEL, "axi_sel", axi_parents, 0x0040, 0, 3), + MUX(CLK_TOP_MEM_SEL, "mem_sel", mem_parents, 0x0040, 8, 1), + MUX_GATE(CLK_TOP_DDRPHYCFG_SEL, "ddrphycfg_sel", ddrphycfg_parents, 0x0040, 16, 1, 23), + MUX_GATE(CLK_TOP_MM_SEL, "mm_sel", mm_parents, 0x0040, 24, 4, 31), + /* CLK_CFG_1 */ + MUX_GATE(CLK_TOP_PWM_SEL, "pwm_sel", pwm_parents, 0x0050, 0, 2, 7), + MUX_GATE(CLK_TOP_VDEC_SEL, "vdec_sel", vdec_parents, 0x0050, 8, 4, 15), + MUX_GATE(CLK_TOP_VENC_SEL, "venc_sel", venc_parents, 0x0050, 16, 4, 23), + MUX_GATE(CLK_TOP_MFG_SEL, "mfg_sel", mfg_parents, 0x0050, 24, 4, 31), + /* CLK_CFG_2 */ + MUX_GATE(CLK_TOP_CAMTG_SEL, "camtg_sel", camtg_parents, 0x0060, 0, 3, 7), + MUX_GATE(CLK_TOP_UART_SEL, "uart_sel", uart_parents, 0x0060, 8, 1, 15), + MUX_GATE(CLK_TOP_SPI_SEL, "spi_sel", spi_parents, 0x0060, 16, 3, 23), + MUX_GATE(CLK_TOP_USB20_SEL, "usb20_sel", usb20_parents, 0x0060, 24, 2, 31), + /* CLK_CFG_3 */ + MUX_GATE(CLK_TOP_USB30_SEL, "usb30_sel", usb30_parents, 0x0070, 0, 2, 7), + MUX_GATE(CLK_TOP_MSDC50_0_H_SEL, "msdc50_0_h_sel", msdc50_0_h_parents, 0x0070, 8, 3, 15), + MUX_GATE(CLK_TOP_MSDC50_0_SEL, "msdc50_0_sel", msdc50_0_parents, 0x0070, 16, 4, 23), + MUX_GATE(CLK_TOP_MSDC30_1_SEL, "msdc30_1_sel", msdc30_1_parents, 0x0070, 24, 3, 31), + /* CLK_CFG_4 */ + MUX_GATE(CLK_TOP_MSDC30_2_SEL, "msdc30_2_sel", msdc30_2_parents, 0x0080, 0, 3, 7), + MUX_GATE(CLK_TOP_MSDC30_3_SEL, "msdc30_3_sel", msdc30_3_parents, 0x0080, 8, 4, 15), + MUX_GATE(CLK_TOP_AUDIO_SEL, "audio_sel", audio_parents, 0x0080, 16, 2, 23), + MUX_GATE(CLK_TOP_AUD_INTBUS_SEL, "aud_intbus_sel", aud_intbus_parents, 0x0080, 24, 3, 31), + /* CLK_CFG_5 */ + MUX_GATE(CLK_TOP_PMICSPI_SEL, "pmicspi_sel", pmicspi_parents, 0x0090, 0, 3, 7 /* 7:5 */), + MUX_GATE(CLK_TOP_SCP_SEL, "scp_sel", scp_parents, 0x0090, 8, 3, 15), + MUX_GATE(CLK_TOP_ATB_SEL, "atb_sel", atb_parents, 0x0090, 16, 2, 23), + MUX_GATE(CLK_TOP_VENC_LT_SEL, "venclt_sel", venc_lt_parents, 0x0090, 24, 4, 31), + /* CLK_CFG_6 */ + MUX_GATE(CLK_TOP_DPI0_SEL, "dpi0_sel", dpi0_parents, 0x00a0, 0, 3, 7), + MUX_GATE(CLK_TOP_IRDA_SEL, "irda_sel", irda_parents, 0x00a0, 8, 2, 15), + MUX_GATE(CLK_TOP_CCI400_SEL, "cci400_sel", cci400_parents, 0x00a0, 16, 3, 23), + MUX_GATE(CLK_TOP_AUD_1_SEL, "aud_1_sel", aud_1_parents, 0x00a0, 24, 2, 31), + /* CLK_CFG_7 */ + MUX_GATE(CLK_TOP_AUD_2_SEL, "aud_2_sel", aud_2_parents, 0x00b0, 0, 2, 7), + MUX_GATE(CLK_TOP_MEM_MFG_IN_SEL, "mem_mfg_in_sel", mem_mfg_in_parents, 0x00b0, 8, 2, 15), + MUX_GATE(CLK_TOP_AXI_MFG_IN_SEL, "axi_mfg_in_sel", axi_mfg_in_parents, 0x00b0, 16, 2, 23), + MUX_GATE(CLK_TOP_SCAM_SEL, "scam_sel", scam_parents, 0x00b0, 24, 2, 31), + /* CLK_CFG_12 */ + MUX_GATE(CLK_TOP_SPINFI_IFR_SEL, "spinfi_ifr_sel", spinfi_ifr_parents, 0x00c0, 0, 3, 7), + MUX_GATE(CLK_TOP_HDMI_SEL, "hdmi_sel", hdmi_parents, 0x00c0, 8, 2, 15), + MUX_GATE(CLK_TOP_DPILVDS_SEL, "dpilvds_sel", dpilvds_parents, 0x00c0, 24, 3, 31), + /* CLK_CFG_13 */ + MUX_GATE(CLK_TOP_MSDC50_2_H_SEL, "msdc50_2_h_sel", msdc50_2_h_parents, 0x00d0, 0, 3, 7), + MUX_GATE(CLK_TOP_HDCP_SEL, "hdcp_sel", hdcp_parents, 0x00d0, 8, 2, 15), + MUX_GATE(CLK_TOP_HDCP_24M_SEL, "hdcp_24m_sel", hdcp_24m_parents, 0x00d0, 16, 2, 23), + MUX(CLK_TOP_RTC_SEL, "rtc_sel", rtc_parents, 0x00d0, 24, 2), + + DIV_GATE(CLK_TOP_APLL1_DIV0, "apll1_div0", "aud_1_sel", 0x12c, 8, 0x120, 4, 24), + DIV_GATE(CLK_TOP_APLL1_DIV1, "apll1_div1", "aud_1_sel", 0x12c, 9, 0x124, 8, 0), + DIV_GATE(CLK_TOP_APLL1_DIV2, "apll1_div2", "aud_1_sel", 0x12c, 10, 0x124, 8, 8), + DIV_GATE(CLK_TOP_APLL1_DIV3, "apll1_div3", "aud_1_sel", 0x12c, 11, 0x124, 8, 16), + DIV_GATE(CLK_TOP_APLL1_DIV4, "apll1_div4", "aud_1_sel", 0x12c, 12, 0x124, 8, 24), + DIV_GATE(CLK_TOP_APLL1_DIV5, "apll1_div5", "apll1_div4", 0x12c, 13, 0x12c, 4, 0), + + DIV_GATE(CLK_TOP_APLL2_DIV0, "apll2_div0", "aud_2_sel", 0x12c, 16, 0x120, 4, 28), + DIV_GATE(CLK_TOP_APLL2_DIV1, "apll2_div1", "aud_2_sel", 0x12c, 17, 0x128, 8, 0), + DIV_GATE(CLK_TOP_APLL2_DIV2, "apll2_div2", "aud_2_sel", 0x12c, 18, 0x128, 8, 8), + DIV_GATE(CLK_TOP_APLL2_DIV3, "apll2_div3", "aud_2_sel", 0x12c, 19, 0x128, 8, 16), + DIV_GATE(CLK_TOP_APLL2_DIV4, "apll2_div4", "aud_2_sel", 0x12c, 20, 0x128, 8, 24), + DIV_GATE(CLK_TOP_APLL2_DIV5, "apll2_div5", "apll2_div4", 0x12c, 21, 0x12c, 4, 4), + + MUX(CLK_TOP_I2S0_M_SEL, "i2s0_m_ck_sel", i2s0_m_ck_parents, 0x120, 4, 1), + MUX(CLK_TOP_I2S1_M_SEL, "i2s1_m_ck_sel", i2s1_m_ck_parents, 0x120, 5, 1), + MUX(CLK_TOP_I2S2_M_SEL, "i2s2_m_ck_sel", i2s2_m_ck_parents, 0x120, 6, 1), + MUX(CLK_TOP_I2S3_M_SEL, "i2s3_m_ck_sel", i2s3_m_ck_parents, 0x120, 7, 1), + MUX(CLK_TOP_I2S3_B_SEL, "i2s3_b_ck_sel", i2s3_b_ck_parents, 0x120, 8, 1), +}; + +static const struct mtk_gate_regs infra_cg_regs = { + .set_ofs = 0x0040, + .clr_ofs = 0x0044, + .sta_ofs = 0x0048, +}; + +#define GATE_ICG(_id, _name, _parent, _shift) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &infra_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +static const struct mtk_gate infra_clks[] __initconst = { + GATE_ICG(CLK_INFRA_DBGCLK, "infra_dbgclk", "axi_sel", 0), + GATE_ICG(CLK_INFRA_SMI, "infra_smi", "mm_sel", 1), + GATE_ICG(CLK_INFRA_AUDIO, "infra_audio", "aud_intbus_sel", 5), + GATE_ICG(CLK_INFRA_GCE, "infra_gce", "axi_sel", 6), + GATE_ICG(CLK_INFRA_L2C_SRAM, "infra_l2c_sram", "axi_sel", 7), + GATE_ICG(CLK_INFRA_M4U, "infra_m4u", "mem_sel", 8), + GATE_ICG(CLK_INFRA_CPUM, "infra_cpum", "clk_null", 15), + GATE_ICG(CLK_INFRA_KP, "infra_kp", "axi_sel", 16), + GATE_ICG(CLK_INFRA_CEC, "infra_cec", "clk26m", 18), + GATE_ICG(CLK_INFRA_PMICSPI, "infra_pmicspi", "pmicspi_sel", 22), + GATE_ICG(CLK_INFRA_PMICWRAP, "infra_pmicwrap", "axi_sel", 23), +}; + +static const struct mtk_gate_regs peri0_cg_regs = { + .set_ofs = 0x0008, + .clr_ofs = 0x0010, + .sta_ofs = 0x0018, +}; + +static const struct mtk_gate_regs peri1_cg_regs = { + .set_ofs = 0x000c, + .clr_ofs = 0x0014, + .sta_ofs = 0x001c, +}; + +#define GATE_PERI0(_id, _name, _parent, _shift) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &peri0_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +#define GATE_PERI1(_id, _name, _parent, _shift) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &peri1_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_setclr, \ + } + +static const struct mtk_gate peri_gates[] __initconst = { + /* PERI0 */ + GATE_PERI0(CLK_PERI_NFI, "peri_nfi", "axi_sel", 0), + GATE_PERI0(CLK_PERI_THERM, "peri_therm", "axi_sel", 1), + GATE_PERI0(CLK_PERI_PWM1, "peri_pwm1", "axi_sel", 2), + GATE_PERI0(CLK_PERI_PWM2, "peri_pwm2", "axi_sel", 3), + GATE_PERI0(CLK_PERI_PWM3, "peri_pwm3", "axi_sel", 4), + GATE_PERI0(CLK_PERI_PWM4, "peri_pwm4", "axi_sel", 5), + GATE_PERI0(CLK_PERI_PWM5, "peri_pwm5", "axi_sel", 6), + GATE_PERI0(CLK_PERI_PWM6, "peri_pwm6", "axi_sel", 7), + GATE_PERI0(CLK_PERI_PWM7, "peri_pwm7", "axi_sel", 8), + GATE_PERI0(CLK_PERI_PWM, "peri_pwm", "axi_sel", 9), + GATE_PERI0(CLK_PERI_USB0, "peri_usb0", "usb20_sel", 10), + GATE_PERI0(CLK_PERI_USB1, "peri_usb1", "usb20_sel", 11), + GATE_PERI0(CLK_PERI_AP_DMA, "peri_ap_dma", "axi_sel", 12), + GATE_PERI0(CLK_PERI_MSDC30_0, "peri_msdc30_0", "msdc50_0_sel", 13), + GATE_PERI0(CLK_PERI_MSDC30_1, "peri_msdc30_1", "msdc30_1_sel", 14), + GATE_PERI0(CLK_PERI_MSDC30_2, "peri_msdc30_2", "msdc30_2_sel", 15), + GATE_PERI0(CLK_PERI_MSDC30_3, "peri_msdc30_3", "msdc30_3_sel", 16), + GATE_PERI0(CLK_PERI_NLI_ARB, "peri_nli_arb", "axi_sel", 17), + GATE_PERI0(CLK_PERI_IRDA, "peri_irda", "irda_sel", 18), + GATE_PERI0(CLK_PERI_UART0, "peri_uart0", "axi_sel", 19), + GATE_PERI0(CLK_PERI_UART1, "peri_uart1", "axi_sel", 20), + GATE_PERI0(CLK_PERI_UART2, "peri_uart2", "axi_sel", 21), + GATE_PERI0(CLK_PERI_UART3, "peri_uart3", "axi_sel", 22), + GATE_PERI0(CLK_PERI_I2C0, "peri_i2c0", "axi_sel", 23), + GATE_PERI0(CLK_PERI_I2C1, "peri_i2c1", "axi_sel", 24), + GATE_PERI0(CLK_PERI_I2C2, "peri_i2c2", "axi_sel", 25), + GATE_PERI0(CLK_PERI_I2C3, "peri_i2c3", "axi_sel", 26), + GATE_PERI0(CLK_PERI_I2C4, "peri_i2c4", "axi_sel", 27), + GATE_PERI0(CLK_PERI_AUXADC, "peri_auxadc", "clk26m", 28), + GATE_PERI0(CLK_PERI_SPI0, "peri_spi0", "spi_sel", 29), + GATE_PERI0(CLK_PERI_I2C5, "peri_i2c5", "axi_sel", 30), + GATE_PERI0(CLK_PERI_NFIECC, "peri_nfiecc", "axi_sel", 31), + /* PERI1 */ + GATE_PERI1(CLK_PERI_SPI, "peri_spi", "spi_sel", 0), + GATE_PERI1(CLK_PERI_IRRX, "peri_irrx", "spi_sel", 1), + GATE_PERI1(CLK_PERI_I2C6, "peri_i2c6", "axi_sel", 2), +}; + +static const char * const uart_ck_sel_parents[] __initconst = { + "clk26m", + "uart_sel", +}; + +static const struct mtk_composite peri_clks[] __initconst = { + MUX(CLK_PERI_UART0_SEL, "uart0_ck_sel", uart_ck_sel_parents, 0x40c, 0, 1), + MUX(CLK_PERI_UART1_SEL, "uart1_ck_sel", uart_ck_sel_parents, 0x40c, 1, 1), + MUX(CLK_PERI_UART2_SEL, "uart2_ck_sel", uart_ck_sel_parents, 0x40c, 2, 1), + MUX(CLK_PERI_UART3_SEL, "uart3_ck_sel", uart_ck_sel_parents, 0x40c, 3, 1), +}; + +static void __init mtk_topckgen_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + void __iomem *base; + int r; + + base = of_iomap(node, 0); + if (!base) { + pr_err("%s(): ioremap failed\n", __func__); + return; + } + + clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK); + + mtk_clk_register_factors(root_clk_alias, ARRAY_SIZE(root_clk_alias), clk_data); + mtk_clk_register_factors(top_divs, ARRAY_SIZE(top_divs), clk_data); + mtk_clk_register_composites(top_muxes, ARRAY_SIZE(top_muxes), base, + &mt8173_clk_lock, clk_data); + + clk_prepare_enable(clk_data->clks[CLK_TOP_CCI400_SEL]); + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); +} +CLK_OF_DECLARE(mtk_topckgen, "mediatek,mt8173-topckgen", mtk_topckgen_init); + +static void __init mtk_infrasys_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + int r; + + clk_data = mtk_alloc_clk_data(CLK_INFRA_NR_CLK); + + mtk_clk_register_gates(node, infra_clks, ARRAY_SIZE(infra_clks), + clk_data); + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); + + mtk_register_reset_controller(node, 2, 0x30); +} +CLK_OF_DECLARE(mtk_infrasys, "mediatek,mt8173-infracfg", mtk_infrasys_init); + +static void __init mtk_pericfg_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + int r; + void __iomem *base; + + base = of_iomap(node, 0); + if (!base) { + pr_err("%s(): ioremap failed\n", __func__); + return; + } + + clk_data = mtk_alloc_clk_data(CLK_PERI_NR_CLK); + + mtk_clk_register_gates(node, peri_gates, ARRAY_SIZE(peri_gates), + clk_data); + mtk_clk_register_composites(peri_clks, ARRAY_SIZE(peri_clks), base, + &mt8173_clk_lock, clk_data); + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); + + mtk_register_reset_controller(node, 2, 0); +} +CLK_OF_DECLARE(mtk_pericfg, "mediatek,mt8173-pericfg", mtk_pericfg_init); + +#define MT8173_PLL_FMAX (3000UL * MHZ) + +#define CON0_MT8173_RST_BAR BIT(24) + +#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, _pd_reg, _pd_shift, \ + _tuner_reg, _pcw_reg, _pcw_shift) { \ + .id = _id, \ + .name = _name, \ + .reg = _reg, \ + .pwr_reg = _pwr_reg, \ + .en_mask = _en_mask, \ + .flags = _flags, \ + .rst_bar_mask = CON0_MT8173_RST_BAR, \ + .fmax = MT8173_PLL_FMAX, \ + .pcwbits = _pcwbits, \ + .pd_reg = _pd_reg, \ + .pd_shift = _pd_shift, \ + .tuner_reg = _tuner_reg, \ + .pcw_reg = _pcw_reg, \ + .pcw_shift = _pcw_shift, \ + } + +static const struct mtk_pll_data plls[] = { + PLL(CLK_APMIXED_ARMCA15PLL, "armca15pll", 0x200, 0x20c, 0x00000001, 0, 21, 0x204, 24, 0x0, 0x204, 0), + PLL(CLK_APMIXED_ARMCA7PLL, "armca7pll", 0x210, 0x21c, 0x00000001, 0, 21, 0x214, 24, 0x0, 0x214, 0), + PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x220, 0x22c, 0xf0000101, HAVE_RST_BAR, 21, 0x220, 4, 0x0, 0x224, 0), + PLL(CLK_APMIXED_UNIVPLL, "univpll", 0x230, 0x23c, 0xfe000001, HAVE_RST_BAR, 7, 0x230, 4, 0x0, 0x234, 14), + PLL(CLK_APMIXED_MMPLL, "mmpll", 0x240, 0x24c, 0x00000001, 0, 21, 0x244, 24, 0x0, 0x244, 0), + PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x250, 0x25c, 0x00000001, 0, 21, 0x250, 4, 0x0, 0x254, 0), + PLL(CLK_APMIXED_VENCPLL, "vencpll", 0x260, 0x26c, 0x00000001, 0, 21, 0x260, 4, 0x0, 0x264, 0), + PLL(CLK_APMIXED_TVDPLL, "tvdpll", 0x270, 0x27c, 0x00000001, 0, 21, 0x270, 4, 0x0, 0x274, 0), + PLL(CLK_APMIXED_MPLL, "mpll", 0x280, 0x28c, 0x00000001, 0, 21, 0x280, 4, 0x0, 0x284, 0), + PLL(CLK_APMIXED_VCODECPLL, "vcodecpll", 0x290, 0x29c, 0x00000001, 0, 21, 0x290, 4, 0x0, 0x294, 0), + PLL(CLK_APMIXED_APLL1, "apll1", 0x2a0, 0x2b0, 0x00000001, 0, 31, 0x2a0, 4, 0x2a4, 0x2a4, 0), + PLL(CLK_APMIXED_APLL2, "apll2", 0x2b4, 0x2c4, 0x00000001, 0, 31, 0x2b4, 4, 0x2b8, 0x2b8, 0), + PLL(CLK_APMIXED_LVDSPLL, "lvdspll", 0x2d0, 0x2dc, 0x00000001, 0, 21, 0x2d0, 4, 0x0, 0x2d4, 0), + PLL(CLK_APMIXED_MSDCPLL2, "msdcpll2", 0x2f0, 0x2fc, 0x00000001, 0, 21, 0x2f0, 4, 0x0, 0x2f4, 0), +}; + +static void __init mtk_apmixedsys_init(struct device_node *node) +{ + struct clk_onecell_data *clk_data; + + clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK); + if (!clk_data) + return; + + mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data); + + clk_prepare_enable(clk_data->clks[CLK_APMIXED_ARMCA15PLL]); +} +CLK_OF_DECLARE(mtk_apmixedsys, "mediatek,mt8173-apmixedsys", + mtk_apmixedsys_init); diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c new file mode 100644 index 000000000000..18444aea63c9 --- /dev/null +++ b/drivers/clk/mediatek/clk-mtk.c @@ -0,0 +1,220 @@ +/* + * Copyright (c) 2014 MediaTek Inc. + * Author: James Liao <jamesjj.liao@mediatek.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/clkdev.h> +#include <linux/mfd/syscon.h> + +#include "clk-mtk.h" +#include "clk-gate.h" + +struct clk_onecell_data *mtk_alloc_clk_data(unsigned int clk_num) +{ + int i; + struct clk_onecell_data *clk_data; + + clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL); + if (!clk_data) + return NULL; + + clk_data->clks = kcalloc(clk_num, sizeof(*clk_data->clks), GFP_KERNEL); + if (!clk_data->clks) + goto err_out; + + clk_data->clk_num = clk_num; + + for (i = 0; i < clk_num; i++) + clk_data->clks[i] = ERR_PTR(-ENOENT); + + return clk_data; +err_out: + kfree(clk_data); + + return NULL; +} + +void mtk_clk_register_factors(const struct mtk_fixed_factor *clks, int num, + struct clk_onecell_data *clk_data) +{ + int i; + struct clk *clk; + + for (i = 0; i < num; i++) { + const struct mtk_fixed_factor *ff = &clks[i]; + + clk = clk_register_fixed_factor(NULL, ff->name, ff->parent_name, + CLK_SET_RATE_PARENT, ff->mult, ff->div); + + if (IS_ERR(clk)) { + pr_err("Failed to register clk %s: %ld\n", + ff->name, PTR_ERR(clk)); + continue; + } + + if (clk_data) + clk_data->clks[ff->id] = clk; + } +} + +int mtk_clk_register_gates(struct device_node *node, const struct mtk_gate *clks, + int num, struct clk_onecell_data *clk_data) +{ + int i; + struct clk *clk; + struct regmap *regmap; + + if (!clk_data) + return -ENOMEM; + + regmap = syscon_node_to_regmap(node); + if (IS_ERR(regmap)) { + pr_err("Cannot find regmap for %s: %ld\n", node->full_name, + PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + for (i = 0; i < num; i++) { + const struct mtk_gate *gate = &clks[i]; + + clk = mtk_clk_register_gate(gate->name, gate->parent_name, + regmap, + gate->regs->set_ofs, + gate->regs->clr_ofs, + gate->regs->sta_ofs, + gate->shift, gate->ops); + + if (IS_ERR(clk)) { + pr_err("Failed to register clk %s: %ld\n", + gate->name, PTR_ERR(clk)); + continue; + } + + clk_data->clks[gate->id] = clk; + } + + return 0; +} + +struct clk *mtk_clk_register_composite(const struct mtk_composite *mc, + void __iomem *base, spinlock_t *lock) +{ + struct clk *clk; + struct clk_mux *mux = NULL; + struct clk_gate *gate = NULL; + struct clk_divider *div = NULL; + struct clk_hw *mux_hw = NULL, *gate_hw = NULL, *div_hw = NULL; + const struct clk_ops *mux_ops = NULL, *gate_ops = NULL, *div_ops = NULL; + const char * const *parent_names; + const char *parent; + int num_parents; + int ret; + + if (mc->mux_shift >= 0) { + mux = kzalloc(sizeof(*mux), GFP_KERNEL); + if (!mux) + return ERR_PTR(-ENOMEM); + + mux->reg = base + mc->mux_reg; + mux->mask = BIT(mc->mux_width) - 1; + mux->shift = mc->mux_shift; + mux->lock = lock; + + mux_hw = &mux->hw; + mux_ops = &clk_mux_ops; + + parent_names = mc->parent_names; + num_parents = mc->num_parents; + } else { + parent = mc->parent; + parent_names = &parent; + num_parents = 1; + } + + if (mc->gate_shift >= 0) { + gate = kzalloc(sizeof(*gate), GFP_KERNEL); + if (!gate) { + ret = -ENOMEM; + goto err_out; + } + + gate->reg = base + mc->gate_reg; + gate->bit_idx = mc->gate_shift; + gate->flags = CLK_GATE_SET_TO_DISABLE; + gate->lock = lock; + + gate_hw = &gate->hw; + gate_ops = &clk_gate_ops; + } + + if (mc->divider_shift >= 0) { + div = kzalloc(sizeof(*div), GFP_KERNEL); + if (!div) { + ret = -ENOMEM; + goto err_out; + } + + div->reg = base + mc->divider_reg; + div->shift = mc->divider_shift; + div->width = mc->divider_width; + div->lock = lock; + + div_hw = &div->hw; + div_ops = &clk_divider_ops; + } + + clk = clk_register_composite(NULL, mc->name, parent_names, num_parents, + mux_hw, mux_ops, + div_hw, div_ops, + gate_hw, gate_ops, + mc->flags); + + if (IS_ERR(clk)) { + kfree(gate); + kfree(mux); + } + + return clk; +err_out: + kfree(mux); + + return ERR_PTR(ret); +} + +void mtk_clk_register_composites(const struct mtk_composite *mcs, + int num, void __iomem *base, spinlock_t *lock, + struct clk_onecell_data *clk_data) +{ + struct clk *clk; + int i; + + for (i = 0; i < num; i++) { + const struct mtk_composite *mc = &mcs[i]; + + clk = mtk_clk_register_composite(mc, base, lock); + + if (IS_ERR(clk)) { + pr_err("Failed to register clk %s: %ld\n", + mc->name, PTR_ERR(clk)); + continue; + } + + if (clk_data) + clk_data->clks[mc->id] = clk; + } +} diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h new file mode 100644 index 000000000000..9dda9d8ad10b --- /dev/null +++ b/drivers/clk/mediatek/clk-mtk.h @@ -0,0 +1,169 @@ +/* + * Copyright (c) 2014 MediaTek Inc. + * Author: James Liao <jamesjj.liao@mediatek.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __DRV_CLK_MTK_H +#define __DRV_CLK_MTK_H + +#include <linux/regmap.h> +#include <linux/bitops.h> +#include <linux/clk.h> +#include <linux/clk-provider.h> + +#define MAX_MUX_GATE_BIT 31 +#define INVALID_MUX_GATE_BIT (MAX_MUX_GATE_BIT + 1) + +#define MHZ (1000 * 1000) + +struct mtk_fixed_factor { + int id; + const char *name; + const char *parent_name; + int mult; + int div; +}; + +#define FACTOR(_id, _name, _parent, _mult, _div) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .mult = _mult, \ + .div = _div, \ + } + +extern void mtk_clk_register_factors(const struct mtk_fixed_factor *clks, + int num, struct clk_onecell_data *clk_data); + +struct mtk_composite { + int id; + const char *name; + const char * const *parent_names; + const char *parent; + unsigned flags; + + uint32_t mux_reg; + uint32_t divider_reg; + uint32_t gate_reg; + + signed char mux_shift; + signed char mux_width; + signed char gate_shift; + + signed char divider_shift; + signed char divider_width; + + signed char num_parents; +}; + +#define MUX_GATE(_id, _name, _parents, _reg, _shift, _width, _gate) { \ + .id = _id, \ + .name = _name, \ + .mux_reg = _reg, \ + .mux_shift = _shift, \ + .mux_width = _width, \ + .gate_reg = _reg, \ + .gate_shift = _gate, \ + .divider_shift = -1, \ + .parent_names = _parents, \ + .num_parents = ARRAY_SIZE(_parents), \ + .flags = CLK_SET_RATE_PARENT, \ + } + +#define MUX(_id, _name, _parents, _reg, _shift, _width) { \ + .id = _id, \ + .name = _name, \ + .mux_reg = _reg, \ + .mux_shift = _shift, \ + .mux_width = _width, \ + .gate_shift = -1, \ + .divider_shift = -1, \ + .parent_names = _parents, \ + .num_parents = ARRAY_SIZE(_parents), \ + .flags = CLK_SET_RATE_PARENT, \ + } + +#define DIV_GATE(_id, _name, _parent, _gate_reg, _gate_shift, _div_reg, _div_width, _div_shift) { \ + .id = _id, \ + .parent = _parent, \ + .name = _name, \ + .divider_reg = _div_reg, \ + .divider_shift = _div_shift, \ + .divider_width = _div_width, \ + .gate_reg = _gate_reg, \ + .gate_shift = _gate_shift, \ + .mux_shift = -1, \ + .flags = 0, \ + } + +struct clk *mtk_clk_register_composite(const struct mtk_composite *mc, + void __iomem *base, spinlock_t *lock); + +void mtk_clk_register_composites(const struct mtk_composite *mcs, + int num, void __iomem *base, spinlock_t *lock, + struct clk_onecell_data *clk_data); + +struct mtk_gate_regs { + u32 sta_ofs; + u32 clr_ofs; + u32 set_ofs; +}; + +struct mtk_gate { + int id; + const char *name; + const char *parent_name; + const struct mtk_gate_regs *regs; + int shift; + const struct clk_ops *ops; +}; + +int mtk_clk_register_gates(struct device_node *node, const struct mtk_gate *clks, + int num, struct clk_onecell_data *clk_data); + +struct clk_onecell_data *mtk_alloc_clk_data(unsigned int clk_num); + +#define HAVE_RST_BAR BIT(0) + +struct mtk_pll_data { + int id; + const char *name; + uint32_t reg; + uint32_t pwr_reg; + uint32_t en_mask; + uint32_t pd_reg; + uint32_t tuner_reg; + int pd_shift; + unsigned int flags; + const struct clk_ops *ops; + u32 rst_bar_mask; + unsigned long fmax; + int pcwbits; + uint32_t pcw_reg; + int pcw_shift; +}; + +void __init mtk_clk_register_plls(struct device_node *node, + const struct mtk_pll_data *plls, int num_plls, + struct clk_onecell_data *clk_data); + +#ifdef CONFIG_RESET_CONTROLLER +void mtk_register_reset_controller(struct device_node *np, + unsigned int num_regs, int regofs); +#else +static inline void mtk_register_reset_controller(struct device_node *np, + unsigned int num_regs, int regofs) +{ +} +#endif + +#endif /* __DRV_CLK_MTK_H */ diff --git a/drivers/clk/mediatek/clk-pll.c b/drivers/clk/mediatek/clk-pll.c new file mode 100644 index 000000000000..44409e98c52f --- /dev/null +++ b/drivers/clk/mediatek/clk-pll.c @@ -0,0 +1,332 @@ +/* + * Copyright (c) 2014 MediaTek Inc. + * Author: James Liao <jamesjj.liao@mediatek.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/clkdev.h> +#include <linux/delay.h> + +#include "clk-mtk.h" + +#define REG_CON0 0 +#define REG_CON1 4 + +#define CON0_BASE_EN BIT(0) +#define CON0_PWR_ON BIT(0) +#define CON0_ISO_EN BIT(1) +#define CON0_PCW_CHG BIT(31) + +#define AUDPLL_TUNER_EN BIT(31) + +#define POSTDIV_MASK 0x7 +#define INTEGER_BITS 7 + +/* + * MediaTek PLLs are configured through their pcw value. The pcw value describes + * a divider in the PLL feedback loop which consists of 7 bits for the integer + * part and the remaining bits (if present) for the fractional part. Also they + * have a 3 bit power-of-two post divider. + */ + +struct mtk_clk_pll { + struct clk_hw hw; + void __iomem *base_addr; + void __iomem *pd_addr; + void __iomem *pwr_addr; + void __iomem *tuner_addr; + void __iomem *pcw_addr; + const struct mtk_pll_data *data; +}; + +static inline struct mtk_clk_pll *to_mtk_clk_pll(struct clk_hw *hw) +{ + return container_of(hw, struct mtk_clk_pll, hw); +} + +static int mtk_pll_is_prepared(struct clk_hw *hw) +{ + struct mtk_clk_pll *pll = to_mtk_clk_pll(hw); + + return (readl(pll->base_addr + REG_CON0) & CON0_BASE_EN) != 0; +} + +static unsigned long __mtk_pll_recalc_rate(struct mtk_clk_pll *pll, u32 fin, + u32 pcw, int postdiv) +{ + int pcwbits = pll->data->pcwbits; + int pcwfbits; + u64 vco; + u8 c = 0; + + /* The fractional part of the PLL divider. */ + pcwfbits = pcwbits > INTEGER_BITS ? pcwbits - INTEGER_BITS : 0; + + vco = (u64)fin * pcw; + + if (pcwfbits && (vco & GENMASK(pcwfbits - 1, 0))) + c = 1; + + vco >>= pcwfbits; + + if (c) + vco++; + + return ((unsigned long)vco + postdiv - 1) / postdiv; +} + +static void mtk_pll_set_rate_regs(struct mtk_clk_pll *pll, u32 pcw, + int postdiv) +{ + u32 con1, pd, val; + int pll_en; + + /* set postdiv */ + pd = readl(pll->pd_addr); + pd &= ~(POSTDIV_MASK << pll->data->pd_shift); + pd |= (ffs(postdiv) - 1) << pll->data->pd_shift; + writel(pd, pll->pd_addr); + + pll_en = readl(pll->base_addr + REG_CON0) & CON0_BASE_EN; + + /* set pcw */ + val = readl(pll->pcw_addr); + + val &= ~GENMASK(pll->data->pcw_shift + pll->data->pcwbits - 1, + pll->data->pcw_shift); + val |= pcw << pll->data->pcw_shift; + writel(val, pll->pcw_addr); + + con1 = readl(pll->base_addr + REG_CON1); + + if (pll_en) + con1 |= CON0_PCW_CHG; + + writel(con1, pll->base_addr + REG_CON1); + if (pll->tuner_addr) + writel(con1 + 1, pll->tuner_addr); + + if (pll_en) + udelay(20); +} + +/* + * mtk_pll_calc_values - calculate good values for a given input frequency. + * @pll: The pll + * @pcw: The pcw value (output) + * @postdiv: The post divider (output) + * @freq: The desired target frequency + * @fin: The input frequency + * + */ +static void mtk_pll_calc_values(struct mtk_clk_pll *pll, u32 *pcw, u32 *postdiv, + u32 freq, u32 fin) +{ + unsigned long fmin = 1000 * MHZ; + u64 _pcw; + u32 val; + + if (freq > pll->data->fmax) + freq = pll->data->fmax; + + for (val = 0; val < 4; val++) { + *postdiv = 1 << val; + if (freq * *postdiv >= fmin) + break; + } + + /* _pcw = freq * postdiv / fin * 2^pcwfbits */ + _pcw = ((u64)freq << val) << (pll->data->pcwbits - INTEGER_BITS); + do_div(_pcw, fin); + + *pcw = (u32)_pcw; +} + +static int mtk_pll_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct mtk_clk_pll *pll = to_mtk_clk_pll(hw); + u32 pcw = 0; + u32 postdiv; + + mtk_pll_calc_values(pll, &pcw, &postdiv, rate, parent_rate); + mtk_pll_set_rate_regs(pll, pcw, postdiv); + + return 0; +} + +static unsigned long mtk_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct mtk_clk_pll *pll = to_mtk_clk_pll(hw); + u32 postdiv; + u32 pcw; + + postdiv = (readl(pll->pd_addr) >> pll->data->pd_shift) & POSTDIV_MASK; + postdiv = 1 << postdiv; + + pcw = readl(pll->pcw_addr) >> pll->data->pcw_shift; + pcw &= GENMASK(pll->data->pcwbits - 1, 0); + + return __mtk_pll_recalc_rate(pll, parent_rate, pcw, postdiv); +} + +static long mtk_pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct mtk_clk_pll *pll = to_mtk_clk_pll(hw); + u32 pcw = 0; + int postdiv; + + mtk_pll_calc_values(pll, &pcw, &postdiv, rate, *prate); + + return __mtk_pll_recalc_rate(pll, *prate, pcw, postdiv); +} + +static int mtk_pll_prepare(struct clk_hw *hw) +{ + struct mtk_clk_pll *pll = to_mtk_clk_pll(hw); + u32 r; + + r = readl(pll->pwr_addr) | CON0_PWR_ON; + writel(r, pll->pwr_addr); + udelay(1); + + r = readl(pll->pwr_addr) & ~CON0_ISO_EN; + writel(r, pll->pwr_addr); + udelay(1); + + r = readl(pll->base_addr + REG_CON0); + r |= pll->data->en_mask; + writel(r, pll->base_addr + REG_CON0); + + if (pll->tuner_addr) { + r = readl(pll->tuner_addr) | AUDPLL_TUNER_EN; + writel(r, pll->tuner_addr); + } + + udelay(20); + + if (pll->data->flags & HAVE_RST_BAR) { + r = readl(pll->base_addr + REG_CON0); + r |= pll->data->rst_bar_mask; + writel(r, pll->base_addr + REG_CON0); + } + + return 0; +} + +static void mtk_pll_unprepare(struct clk_hw *hw) +{ + struct mtk_clk_pll *pll = to_mtk_clk_pll(hw); + u32 r; + + if (pll->data->flags & HAVE_RST_BAR) { + r = readl(pll->base_addr + REG_CON0); + r &= ~pll->data->rst_bar_mask; + writel(r, pll->base_addr + REG_CON0); + } + + if (pll->tuner_addr) { + r = readl(pll->tuner_addr) & ~AUDPLL_TUNER_EN; + writel(r, pll->tuner_addr); + } + + r = readl(pll->base_addr + REG_CON0); + r &= ~CON0_BASE_EN; + writel(r, pll->base_addr + REG_CON0); + + r = readl(pll->pwr_addr) | CON0_ISO_EN; + writel(r, pll->pwr_addr); + + r = readl(pll->pwr_addr) & ~CON0_PWR_ON; + writel(r, pll->pwr_addr); +} + +static const struct clk_ops mtk_pll_ops = { + .is_prepared = mtk_pll_is_prepared, + .prepare = mtk_pll_prepare, + .unprepare = mtk_pll_unprepare, + .recalc_rate = mtk_pll_recalc_rate, + .round_rate = mtk_pll_round_rate, + .set_rate = mtk_pll_set_rate, +}; + +static struct clk *mtk_clk_register_pll(const struct mtk_pll_data *data, + void __iomem *base) +{ + struct mtk_clk_pll *pll; + struct clk_init_data init = {}; + struct clk *clk; + const char *parent_name = "clk26m"; + + pll = kzalloc(sizeof(*pll), GFP_KERNEL); + if (!pll) + return ERR_PTR(-ENOMEM); + + pll->base_addr = base + data->reg; + pll->pwr_addr = base + data->pwr_reg; + pll->pd_addr = base + data->pd_reg; + pll->pcw_addr = base + data->pcw_reg; + if (data->tuner_reg) + pll->tuner_addr = base + data->tuner_reg; + pll->hw.init = &init; + pll->data = data; + + init.name = data->name; + init.ops = &mtk_pll_ops; + init.parent_names = &parent_name; + init.num_parents = 1; + + clk = clk_register(NULL, &pll->hw); + + if (IS_ERR(clk)) + kfree(pll); + + return clk; +} + +void __init mtk_clk_register_plls(struct device_node *node, + const struct mtk_pll_data *plls, int num_plls, struct clk_onecell_data *clk_data) +{ + void __iomem *base; + int r, i; + struct clk *clk; + + base = of_iomap(node, 0); + if (!base) { + pr_err("%s(): ioremap failed\n", __func__); + return; + } + + for (i = 0; i < num_plls; i++) { + const struct mtk_pll_data *pll = &plls[i]; + + clk = mtk_clk_register_pll(pll, base); + + if (IS_ERR(clk)) { + pr_err("Failed to register clk %s: %ld\n", + pll->name, PTR_ERR(clk)); + continue; + } + + clk_data->clks[pll->id] = clk; + } + + r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); +} diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c new file mode 100644 index 000000000000..9e9fe4b19ac4 --- /dev/null +++ b/drivers/clk/mediatek/reset.c @@ -0,0 +1,97 @@ +/* + * Copyright (c) 2014 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/reset-controller.h> +#include <linux/slab.h> + +#include "clk-mtk.h" + +struct mtk_reset { + struct regmap *regmap; + int regofs; + struct reset_controller_dev rcdev; +}; + +static int mtk_reset_assert(struct reset_controller_dev *rcdev, + unsigned long id) +{ + struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev); + + return regmap_update_bits(data->regmap, data->regofs + ((id / 32) << 2), + BIT(id % 32), ~0); +} + +static int mtk_reset_deassert(struct reset_controller_dev *rcdev, + unsigned long id) +{ + struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev); + + return regmap_update_bits(data->regmap, data->regofs + ((id / 32) << 2), + BIT(id % 32), 0); +} + +static int mtk_reset(struct reset_controller_dev *rcdev, + unsigned long id) +{ + int ret; + + ret = mtk_reset_assert(rcdev, id); + if (ret) + return ret; + + return mtk_reset_deassert(rcdev, id); +} + +static struct reset_control_ops mtk_reset_ops = { + .assert = mtk_reset_assert, + .deassert = mtk_reset_deassert, + .reset = mtk_reset, +}; + +void mtk_register_reset_controller(struct device_node *np, + unsigned int num_regs, int regofs) +{ + struct mtk_reset *data; + int ret; + struct regmap *regmap; + + regmap = syscon_node_to_regmap(np); + if (IS_ERR(regmap)) { + pr_err("Cannot find regmap for %s: %ld\n", np->full_name, + PTR_ERR(regmap)); + return; + } + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return; + + data->regmap = regmap; + data->regofs = regofs; + data->rcdev.owner = THIS_MODULE; + data->rcdev.nr_resets = num_regs * 32; + data->rcdev.ops = &mtk_reset_ops; + data->rcdev.of_node = np; + + ret = reset_controller_register(&data->rcdev); + if (ret) { + pr_err("could not register reset controller: %d\n", ret); + kfree(data); + return; + } +} diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile new file mode 100644 index 000000000000..6d45531df9ab --- /dev/null +++ b/drivers/clk/meson/Makefile @@ -0,0 +1,6 @@ +# +# Makefile for Meson specific clk +# + +obj-y += clkc.o clk-pll.o clk-cpu.o +obj-y += meson8b-clkc.o diff --git a/drivers/clk/meson/clk-cpu.c b/drivers/clk/meson/clk-cpu.c new file mode 100644 index 000000000000..71ad493b94df --- /dev/null +++ b/drivers/clk/meson/clk-cpu.c @@ -0,0 +1,242 @@ +/* + * Copyright (c) 2015 Endless Mobile, Inc. + * Author: Carlo Caione <carlo@endlessm.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* + * CPU clock path: + * + * +-[/N]-----|3| + * MUX2 +--[/3]-+----------|2| MUX1 + * [sys_pll]---|1| |--[/2]------------|1|-|1| + * | |---+------------------|0| | |----- [a5_clk] + * +--|0| | | + * [xtal]---+-------------------------------|0| + * + * + * + */ + +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of_address.h> +#include <linux/slab.h> +#include <linux/clk-provider.h> + +#define MESON_CPU_CLK_CNTL1 0x00 +#define MESON_CPU_CLK_CNTL 0x40 + +#define MESON_CPU_CLK_MUX1 BIT(7) +#define MESON_CPU_CLK_MUX2 BIT(0) + +#define MESON_N_WIDTH 9 +#define MESON_N_SHIFT 20 +#define MESON_SEL_WIDTH 2 +#define MESON_SEL_SHIFT 2 + +#include "clkc.h" + +struct meson_clk_cpu { + struct notifier_block clk_nb; + const struct clk_div_table *div_table; + struct clk_hw hw; + void __iomem *base; + u16 reg_off; +}; +#define to_meson_clk_cpu_hw(_hw) container_of(_hw, struct meson_clk_cpu, hw) +#define to_meson_clk_cpu_nb(_nb) container_of(_nb, struct meson_clk_cpu, clk_nb) + +static long meson_clk_cpu_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct meson_clk_cpu *clk_cpu = to_meson_clk_cpu_hw(hw); + + return divider_round_rate(hw, rate, prate, clk_cpu->div_table, + MESON_N_WIDTH, CLK_DIVIDER_ROUND_CLOSEST); +} + +static int meson_clk_cpu_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct meson_clk_cpu *clk_cpu = to_meson_clk_cpu_hw(hw); + unsigned int div, sel, N = 0; + u32 reg; + + div = DIV_ROUND_UP(parent_rate, rate); + + if (div <= 3) { + sel = div - 1; + } else { + sel = 3; + N = div / 2; + } + + reg = readl(clk_cpu->base + clk_cpu->reg_off + MESON_CPU_CLK_CNTL1); + reg = PARM_SET(MESON_N_WIDTH, MESON_N_SHIFT, reg, N); + writel(reg, clk_cpu->base + clk_cpu->reg_off + MESON_CPU_CLK_CNTL1); + + reg = readl(clk_cpu->base + clk_cpu->reg_off + MESON_CPU_CLK_CNTL); + reg = PARM_SET(MESON_SEL_WIDTH, MESON_SEL_SHIFT, reg, sel); + writel(reg, clk_cpu->base + clk_cpu->reg_off + MESON_CPU_CLK_CNTL); + + return 0; +} + +static unsigned long meson_clk_cpu_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct meson_clk_cpu *clk_cpu = to_meson_clk_cpu_hw(hw); + unsigned int N, sel; + unsigned int div = 1; + u32 reg; + + reg = readl(clk_cpu->base + clk_cpu->reg_off + MESON_CPU_CLK_CNTL1); + N = PARM_GET(MESON_N_WIDTH, MESON_N_SHIFT, reg); + + reg = readl(clk_cpu->base + clk_cpu->reg_off + MESON_CPU_CLK_CNTL); + sel = PARM_GET(MESON_SEL_WIDTH, MESON_SEL_SHIFT, reg); + + if (sel < 3) + div = sel + 1; + else + div = 2 * N; + + return parent_rate / div; +} + +static int meson_clk_cpu_pre_rate_change(struct meson_clk_cpu *clk_cpu, + struct clk_notifier_data *ndata) +{ + u32 cpu_clk_cntl; + + /* switch MUX1 to xtal */ + cpu_clk_cntl = readl(clk_cpu->base + clk_cpu->reg_off + + MESON_CPU_CLK_CNTL); + cpu_clk_cntl &= ~MESON_CPU_CLK_MUX1; + writel(cpu_clk_cntl, clk_cpu->base + clk_cpu->reg_off + + MESON_CPU_CLK_CNTL); + udelay(100); + + /* switch MUX2 to sys-pll */ + cpu_clk_cntl |= MESON_CPU_CLK_MUX2; + writel(cpu_clk_cntl, clk_cpu->base + clk_cpu->reg_off + + MESON_CPU_CLK_CNTL); + + return 0; +} + +static int meson_clk_cpu_post_rate_change(struct meson_clk_cpu *clk_cpu, + struct clk_notifier_data *ndata) +{ + u32 cpu_clk_cntl; + + /* switch MUX1 to divisors' output */ + cpu_clk_cntl = readl(clk_cpu->base + clk_cpu->reg_off + + MESON_CPU_CLK_CNTL); + cpu_clk_cntl |= MESON_CPU_CLK_MUX1; + writel(cpu_clk_cntl, clk_cpu->base + clk_cpu->reg_off + + MESON_CPU_CLK_CNTL); + udelay(100); + + return 0; +} + +/* + * This clock notifier is called when the frequency of the of the parent + * PLL clock is to be changed. We use the xtal input as temporary parent + * while the PLL frequency is stabilized. + */ +static int meson_clk_cpu_notifier_cb(struct notifier_block *nb, + unsigned long event, void *data) +{ + struct clk_notifier_data *ndata = data; + struct meson_clk_cpu *clk_cpu = to_meson_clk_cpu_nb(nb); + int ret = 0; + + if (event == PRE_RATE_CHANGE) + ret = meson_clk_cpu_pre_rate_change(clk_cpu, ndata); + else if (event == POST_RATE_CHANGE) + ret = meson_clk_cpu_post_rate_change(clk_cpu, ndata); + + return notifier_from_errno(ret); +} + +static const struct clk_ops meson_clk_cpu_ops = { + .recalc_rate = meson_clk_cpu_recalc_rate, + .round_rate = meson_clk_cpu_round_rate, + .set_rate = meson_clk_cpu_set_rate, +}; + +struct clk *meson_clk_register_cpu(const struct clk_conf *clk_conf, + void __iomem *reg_base, + spinlock_t *lock) +{ + struct clk *clk; + struct clk *pclk; + struct meson_clk_cpu *clk_cpu; + struct clk_init_data init; + int ret; + + clk_cpu = kzalloc(sizeof(*clk_cpu), GFP_KERNEL); + if (!clk_cpu) + return ERR_PTR(-ENOMEM); + + clk_cpu->base = reg_base; + clk_cpu->reg_off = clk_conf->reg_off; + clk_cpu->div_table = clk_conf->conf.div_table; + clk_cpu->clk_nb.notifier_call = meson_clk_cpu_notifier_cb; + + init.name = clk_conf->clk_name; + init.ops = &meson_clk_cpu_ops; + init.flags = clk_conf->flags | CLK_GET_RATE_NOCACHE; + init.flags |= CLK_SET_RATE_PARENT; + init.parent_names = clk_conf->clks_parent; + init.num_parents = 1; + + clk_cpu->hw.init = &init; + + pclk = __clk_lookup(clk_conf->clks_parent[0]); + if (!pclk) { + pr_err("%s: could not lookup parent clock %s\n", + __func__, clk_conf->clks_parent[0]); + ret = -EINVAL; + goto free_clk; + } + + ret = clk_notifier_register(pclk, &clk_cpu->clk_nb); + if (ret) { + pr_err("%s: failed to register clock notifier for %s\n", + __func__, clk_conf->clk_name); + goto free_clk; + } + + clk = clk_register(NULL, &clk_cpu->hw); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + goto unregister_clk_nb; + } + + return clk; + +unregister_clk_nb: + clk_notifier_unregister(pclk, &clk_cpu->clk_nb); +free_clk: + kfree(clk_cpu); + + return ERR_PTR(ret); +} + diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c new file mode 100644 index 000000000000..664edf0708ea --- /dev/null +++ b/drivers/clk/meson/clk-pll.c @@ -0,0 +1,227 @@ +/* + * Copyright (c) 2015 Endless Mobile, Inc. + * Author: Carlo Caione <carlo@endlessm.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* + * In the most basic form, a Meson PLL is composed as follows: + * + * PLL + * +------------------------------+ + * | | + * in -----[ /N ]---[ *M ]---[ >>OD ]----->> out + * | ^ ^ | + * +------------------------------+ + * | | + * FREF VCO + * + * out = (in * M / N) >> OD + */ + +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of_address.h> +#include <linux/slab.h> +#include <linux/string.h> + +#include "clkc.h" + +#define MESON_PLL_RESET BIT(29) +#define MESON_PLL_LOCK BIT(31) + +struct meson_clk_pll { + struct clk_hw hw; + void __iomem *base; + struct pll_conf *conf; + unsigned int rate_count; + spinlock_t *lock; +}; +#define to_meson_clk_pll(_hw) container_of(_hw, struct meson_clk_pll, hw) + +static unsigned long meson_clk_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct meson_clk_pll *pll = to_meson_clk_pll(hw); + struct parm *p; + unsigned long parent_rate_mhz = parent_rate / 1000000; + unsigned long rate_mhz; + u16 n, m, od; + u32 reg; + + p = &pll->conf->n; + reg = readl(pll->base + p->reg_off); + n = PARM_GET(p->width, p->shift, reg); + + p = &pll->conf->m; + reg = readl(pll->base + p->reg_off); + m = PARM_GET(p->width, p->shift, reg); + + p = &pll->conf->od; + reg = readl(pll->base + p->reg_off); + od = PARM_GET(p->width, p->shift, reg); + + rate_mhz = (parent_rate_mhz * m / n) >> od; + + return rate_mhz * 1000000; +} + +static long meson_clk_pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + struct meson_clk_pll *pll = to_meson_clk_pll(hw); + const struct pll_rate_table *rate_table = pll->conf->rate_table; + int i; + + for (i = 0; i < pll->rate_count; i++) { + if (rate <= rate_table[i].rate) + return rate_table[i].rate; + } + + /* else return the smallest value */ + return rate_table[0].rate; +} + +static const struct pll_rate_table *meson_clk_get_pll_settings(struct meson_clk_pll *pll, + unsigned long rate) +{ + const struct pll_rate_table *rate_table = pll->conf->rate_table; + int i; + + for (i = 0; i < pll->rate_count; i++) { + if (rate == rate_table[i].rate) + return &rate_table[i]; + } + return NULL; +} + +static int meson_clk_pll_wait_lock(struct meson_clk_pll *pll, + struct parm *p_n) +{ + int delay = 24000000; + u32 reg; + + while (delay > 0) { + reg = readl(pll->base + p_n->reg_off); + + if (reg & MESON_PLL_LOCK) + return 0; + delay--; + } + return -ETIMEDOUT; +} + +static int meson_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct meson_clk_pll *pll = to_meson_clk_pll(hw); + struct parm *p; + const struct pll_rate_table *rate_set; + unsigned long old_rate; + int ret = 0; + u32 reg; + + if (parent_rate == 0 || rate == 0) + return -EINVAL; + + old_rate = rate; + + rate_set = meson_clk_get_pll_settings(pll, rate); + if (!rate_set) + return -EINVAL; + + /* PLL reset */ + p = &pll->conf->n; + reg = readl(pll->base + p->reg_off); + writel(reg | MESON_PLL_RESET, pll->base + p->reg_off); + + reg = PARM_SET(p->width, p->shift, reg, rate_set->n); + writel(reg, pll->base + p->reg_off); + + p = &pll->conf->m; + reg = readl(pll->base + p->reg_off); + reg = PARM_SET(p->width, p->shift, reg, rate_set->m); + writel(reg, pll->base + p->reg_off); + + p = &pll->conf->od; + reg = readl(pll->base + p->reg_off); + reg = PARM_SET(p->width, p->shift, reg, rate_set->od); + writel(reg, pll->base + p->reg_off); + + p = &pll->conf->n; + ret = meson_clk_pll_wait_lock(pll, p); + if (ret) { + pr_warn("%s: pll did not lock, trying to restore old rate %lu\n", + __func__, old_rate); + meson_clk_pll_set_rate(hw, old_rate, parent_rate); + } + + return ret; +} + +static const struct clk_ops meson_clk_pll_ops = { + .recalc_rate = meson_clk_pll_recalc_rate, + .round_rate = meson_clk_pll_round_rate, + .set_rate = meson_clk_pll_set_rate, +}; + +static const struct clk_ops meson_clk_pll_ro_ops = { + .recalc_rate = meson_clk_pll_recalc_rate, +}; + +struct clk *meson_clk_register_pll(const struct clk_conf *clk_conf, + void __iomem *reg_base, + spinlock_t *lock) +{ + struct clk *clk; + struct meson_clk_pll *clk_pll; + struct clk_init_data init; + + clk_pll = kzalloc(sizeof(*clk_pll), GFP_KERNEL); + if (!clk_pll) + return ERR_PTR(-ENOMEM); + + clk_pll->base = reg_base + clk_conf->reg_off; + clk_pll->lock = lock; + clk_pll->conf = clk_conf->conf.pll; + + init.name = clk_conf->clk_name; + init.flags = clk_conf->flags | CLK_GET_RATE_NOCACHE; + + init.parent_names = &clk_conf->clks_parent[0]; + init.num_parents = 1; + init.ops = &meson_clk_pll_ro_ops; + + /* If no rate_table is specified we assume the PLL is read-only */ + if (clk_pll->conf->rate_table) { + int len; + + for (len = 0; clk_pll->conf->rate_table[len].rate != 0; ) + len++; + + clk_pll->rate_count = len; + init.ops = &meson_clk_pll_ops; + } + + clk_pll->hw.init = &init; + + clk = clk_register(NULL, &clk_pll->hw); + if (IS_ERR(clk)) + kfree(clk_pll); + + return clk; +} diff --git a/drivers/clk/meson/clkc.c b/drivers/clk/meson/clkc.c new file mode 100644 index 000000000000..b8c511c5e7a7 --- /dev/null +++ b/drivers/clk/meson/clkc.c @@ -0,0 +1,250 @@ +/* + * Copyright (c) 2015 Endless Mobile, Inc. + * Author: Carlo Caione <carlo@endlessm.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/mfd/syscon.h> +#include <linux/slab.h> + +#include "clkc.h" + +static DEFINE_SPINLOCK(clk_lock); + +static struct clk **clks; +static struct clk_onecell_data clk_data; + +struct clk ** __init meson_clk_init(struct device_node *np, + unsigned long nr_clks) +{ + clks = kcalloc(nr_clks, sizeof(*clks), GFP_KERNEL); + if (!clks) + return ERR_PTR(-ENOMEM); + + clk_data.clks = clks; + clk_data.clk_num = nr_clks; + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + return clks; +} + +static void meson_clk_add_lookup(struct clk *clk, unsigned int id) +{ + if (clks && id) + clks[id] = clk; +} + +static struct clk * __init +meson_clk_register_composite(const struct clk_conf *clk_conf, + void __iomem *clk_base) +{ + struct clk *clk; + struct clk_mux *mux = NULL; + struct clk_divider *div = NULL; + struct clk_gate *gate = NULL; + const struct clk_ops *mux_ops = NULL; + const struct composite_conf *composite_conf; + + composite_conf = clk_conf->conf.composite; + + if (clk_conf->num_parents > 1) { + mux = kzalloc(sizeof(*mux), GFP_KERNEL); + if (!mux) + return ERR_PTR(-ENOMEM); + + mux->reg = clk_base + clk_conf->reg_off + + composite_conf->mux_parm.reg_off; + mux->shift = composite_conf->mux_parm.shift; + mux->mask = BIT(composite_conf->mux_parm.width) - 1; + mux->flags = composite_conf->mux_flags; + mux->lock = &clk_lock; + mux->table = composite_conf->mux_table; + mux_ops = (composite_conf->mux_flags & CLK_MUX_READ_ONLY) ? + &clk_mux_ro_ops : &clk_mux_ops; + } + + if (MESON_PARM_APPLICABLE(&composite_conf->div_parm)) { + div = kzalloc(sizeof(*div), GFP_KERNEL); + if (!div) { + clk = ERR_PTR(-ENOMEM); + goto error; + } + + div->reg = clk_base + clk_conf->reg_off + + composite_conf->div_parm.reg_off; + div->shift = composite_conf->div_parm.shift; + div->width = composite_conf->div_parm.width; + div->lock = &clk_lock; + div->flags = composite_conf->div_flags; + div->table = composite_conf->div_table; + } + + if (MESON_PARM_APPLICABLE(&composite_conf->gate_parm)) { + gate = kzalloc(sizeof(*gate), GFP_KERNEL); + if (!gate) { + clk = ERR_PTR(-ENOMEM); + goto error; + } + + gate->reg = clk_base + clk_conf->reg_off + + composite_conf->div_parm.reg_off; + gate->bit_idx = composite_conf->gate_parm.shift; + gate->flags = composite_conf->gate_flags; + gate->lock = &clk_lock; + } + + clk = clk_register_composite(NULL, clk_conf->clk_name, + clk_conf->clks_parent, + clk_conf->num_parents, + mux ? &mux->hw : NULL, mux_ops, + div ? &div->hw : NULL, &clk_divider_ops, + gate ? &gate->hw : NULL, &clk_gate_ops, + clk_conf->flags); + if (IS_ERR(clk)) + goto error; + + return clk; + +error: + kfree(gate); + kfree(div); + kfree(mux); + + return clk; +} + +static struct clk * __init +meson_clk_register_fixed_factor(const struct clk_conf *clk_conf, + void __iomem *clk_base) +{ + struct clk *clk; + const struct fixed_fact_conf *fixed_fact_conf; + const struct parm *p; + unsigned int mult, div; + u32 reg; + + fixed_fact_conf = &clk_conf->conf.fixed_fact; + + mult = clk_conf->conf.fixed_fact.mult; + div = clk_conf->conf.fixed_fact.div; + + if (!mult) { + mult = 1; + p = &fixed_fact_conf->mult_parm; + if (MESON_PARM_APPLICABLE(p)) { + reg = readl(clk_base + clk_conf->reg_off + p->reg_off); + mult = PARM_GET(p->width, p->shift, reg); + } + } + + if (!div) { + div = 1; + p = &fixed_fact_conf->div_parm; + if (MESON_PARM_APPLICABLE(p)) { + reg = readl(clk_base + clk_conf->reg_off + p->reg_off); + mult = PARM_GET(p->width, p->shift, reg); + } + } + + clk = clk_register_fixed_factor(NULL, + clk_conf->clk_name, + clk_conf->clks_parent[0], + clk_conf->flags, + mult, div); + + return clk; +} + +static struct clk * __init +meson_clk_register_fixed_rate(const struct clk_conf *clk_conf, + void __iomem *clk_base) +{ + struct clk *clk; + const struct fixed_rate_conf *fixed_rate_conf; + const struct parm *r; + unsigned long rate; + u32 reg; + + fixed_rate_conf = &clk_conf->conf.fixed_rate; + rate = fixed_rate_conf->rate; + + if (!rate) { + r = &fixed_rate_conf->rate_parm; + reg = readl(clk_base + clk_conf->reg_off + r->reg_off); + rate = PARM_GET(r->width, r->shift, reg); + } + + rate *= 1000000; + + clk = clk_register_fixed_rate(NULL, + clk_conf->clk_name, + clk_conf->num_parents + ? clk_conf->clks_parent[0] : NULL, + clk_conf->flags, rate); + + return clk; +} + +void __init meson_clk_register_clks(const struct clk_conf *clk_confs, + size_t nr_confs, + void __iomem *clk_base) +{ + unsigned int i; + struct clk *clk = NULL; + + for (i = 0; i < nr_confs; i++) { + const struct clk_conf *clk_conf = &clk_confs[i]; + + switch (clk_conf->clk_type) { + case CLK_FIXED_RATE: + clk = meson_clk_register_fixed_rate(clk_conf, + clk_base); + break; + case CLK_FIXED_FACTOR: + clk = meson_clk_register_fixed_factor(clk_conf, + clk_base); + break; + case CLK_COMPOSITE: + clk = meson_clk_register_composite(clk_conf, + clk_base); + break; + case CLK_CPU: + clk = meson_clk_register_cpu(clk_conf, clk_base, + &clk_lock); + break; + case CLK_PLL: + clk = meson_clk_register_pll(clk_conf, clk_base, + &clk_lock); + break; + default: + clk = NULL; + } + + if (!clk) { + pr_err("%s: unknown clock type %d\n", __func__, + clk_conf->clk_type); + continue; + } + + if (IS_ERR(clk)) { + pr_warn("%s: Unable to create %s clock\n", __func__, + clk_conf->clk_name); + continue; + } + + meson_clk_add_lookup(clk, clk_conf->clk_id); + } +} diff --git a/drivers/clk/meson/clkc.h b/drivers/clk/meson/clkc.h new file mode 100644 index 000000000000..609ae92cc13f --- /dev/null +++ b/drivers/clk/meson/clkc.h @@ -0,0 +1,187 @@ +/* + * Copyright (c) 2015 Endless Mobile, Inc. + * Author: Carlo Caione <carlo@endlessm.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __CLKC_H +#define __CLKC_H + +#define PMASK(width) GENMASK(width - 1, 0) +#define SETPMASK(width, shift) GENMASK(shift + width - 1, shift) +#define CLRPMASK(width, shift) (~SETPMASK(width, shift)) + +#define PARM_GET(width, shift, reg) \ + (((reg) & SETPMASK(width, shift)) >> (shift)) +#define PARM_SET(width, shift, reg, val) \ + (((reg) & CLRPMASK(width, shift)) | (val << (shift))) + +#define MESON_PARM_APPLICABLE(p) (!!((p)->width)) + +struct parm { + u16 reg_off; + u8 shift; + u8 width; +}; +#define PARM(_r, _s, _w) \ + { \ + .reg_off = (_r), \ + .shift = (_s), \ + .width = (_w), \ + } \ + +struct pll_rate_table { + unsigned long rate; + u16 m; + u16 n; + u16 od; +}; +#define PLL_RATE(_r, _m, _n, _od) \ + { \ + .rate = (_r), \ + .m = (_m), \ + .n = (_n), \ + .od = (_od), \ + } \ + +struct pll_conf { + const struct pll_rate_table *rate_table; + struct parm m; + struct parm n; + struct parm od; +}; + +struct fixed_fact_conf { + unsigned int div; + unsigned int mult; + struct parm div_parm; + struct parm mult_parm; +}; + +struct fixed_rate_conf { + unsigned long rate; + struct parm rate_parm; +}; + +struct composite_conf { + struct parm mux_parm; + struct parm div_parm; + struct parm gate_parm; + struct clk_div_table *div_table; + u32 *mux_table; + u8 mux_flags; + u8 div_flags; + u8 gate_flags; +}; + +#define PNAME(x) static const char *x[] + +enum clk_type { + CLK_FIXED_FACTOR, + CLK_FIXED_RATE, + CLK_COMPOSITE, + CLK_CPU, + CLK_PLL, +}; + +struct clk_conf { + u16 reg_off; + enum clk_type clk_type; + unsigned int clk_id; + const char *clk_name; + const char **clks_parent; + int num_parents; + unsigned long flags; + union { + struct fixed_fact_conf fixed_fact; + struct fixed_rate_conf fixed_rate; + const struct composite_conf *composite; + struct pll_conf *pll; + const struct clk_div_table *div_table; + } conf; +}; + +#define FIXED_RATE_P(_ro, _ci, _cn, _f, _c) \ + { \ + .reg_off = (_ro), \ + .clk_type = CLK_FIXED_RATE, \ + .clk_id = (_ci), \ + .clk_name = (_cn), \ + .flags = (_f), \ + .conf.fixed_rate.rate_parm = _c, \ + } \ + +#define FIXED_RATE(_ci, _cn, _f, _r) \ + { \ + .clk_type = CLK_FIXED_RATE, \ + .clk_id = (_ci), \ + .clk_name = (_cn), \ + .flags = (_f), \ + .conf.fixed_rate.rate = (_r), \ + } \ + +#define PLL(_ro, _ci, _cn, _cp, _f, _c) \ + { \ + .reg_off = (_ro), \ + .clk_type = CLK_PLL, \ + .clk_id = (_ci), \ + .clk_name = (_cn), \ + .clks_parent = (_cp), \ + .num_parents = ARRAY_SIZE(_cp), \ + .flags = (_f), \ + .conf.pll = (_c), \ + } \ + +#define FIXED_FACTOR_DIV(_ci, _cn, _cp, _f, _d) \ + { \ + .clk_type = CLK_FIXED_FACTOR, \ + .clk_id = (_ci), \ + .clk_name = (_cn), \ + .clks_parent = (_cp), \ + .num_parents = ARRAY_SIZE(_cp), \ + .conf.fixed_fact.div = (_d), \ + } \ + +#define CPU(_ro, _ci, _cn, _cp, _dt) \ + { \ + .reg_off = (_ro), \ + .clk_type = CLK_CPU, \ + .clk_id = (_ci), \ + .clk_name = (_cn), \ + .clks_parent = (_cp), \ + .num_parents = ARRAY_SIZE(_cp), \ + .conf.div_table = (_dt), \ + } \ + +#define COMPOSITE(_ro, _ci, _cn, _cp, _f, _c) \ + { \ + .reg_off = (_ro), \ + .clk_type = CLK_COMPOSITE, \ + .clk_id = (_ci), \ + .clk_name = (_cn), \ + .clks_parent = (_cp), \ + .num_parents = ARRAY_SIZE(_cp), \ + .flags = (_f), \ + .conf.composite = (_c), \ + } \ + +struct clk **meson_clk_init(struct device_node *np, unsigned long nr_clks); +void meson_clk_register_clks(const struct clk_conf *clk_confs, + unsigned int nr_confs, void __iomem *clk_base); +struct clk *meson_clk_register_cpu(const struct clk_conf *clk_conf, + void __iomem *reg_base, spinlock_t *lock); +struct clk *meson_clk_register_pll(const struct clk_conf *clk_conf, + void __iomem *reg_base, spinlock_t *lock); + +#endif /* __CLKC_H */ diff --git a/drivers/clk/meson/meson8b-clkc.c b/drivers/clk/meson/meson8b-clkc.c new file mode 100644 index 000000000000..61f6d55c4ac7 --- /dev/null +++ b/drivers/clk/meson/meson8b-clkc.c @@ -0,0 +1,196 @@ +/* + * Copyright (c) 2015 Endless Mobile, Inc. + * Author: Carlo Caione <carlo@endlessm.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/clk-provider.h> +#include <linux/kernel.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/slab.h> +#include <dt-bindings/clock/meson8b-clkc.h> + +#include "clkc.h" + +#define MESON8B_REG_CTL0_ADDR 0x0000 +#define MESON8B_REG_SYS_CPU_CNTL1 0x015c +#define MESON8B_REG_HHI_MPEG 0x0174 +#define MESON8B_REG_MALI 0x01b0 +#define MESON8B_REG_PLL_FIXED 0x0280 +#define MESON8B_REG_PLL_SYS 0x0300 +#define MESON8B_REG_PLL_VID 0x0320 + +static const struct pll_rate_table sys_pll_rate_table[] = { + PLL_RATE(312000000, 52, 1, 2), + PLL_RATE(336000000, 56, 1, 2), + PLL_RATE(360000000, 60, 1, 2), + PLL_RATE(384000000, 64, 1, 2), + PLL_RATE(408000000, 68, 1, 2), + PLL_RATE(432000000, 72, 1, 2), + PLL_RATE(456000000, 76, 1, 2), + PLL_RATE(480000000, 80, 1, 2), + PLL_RATE(504000000, 84, 1, 2), + PLL_RATE(528000000, 88, 1, 2), + PLL_RATE(552000000, 92, 1, 2), + PLL_RATE(576000000, 96, 1, 2), + PLL_RATE(600000000, 50, 1, 1), + PLL_RATE(624000000, 52, 1, 1), + PLL_RATE(648000000, 54, 1, 1), + PLL_RATE(672000000, 56, 1, 1), + PLL_RATE(696000000, 58, 1, 1), + PLL_RATE(720000000, 60, 1, 1), + PLL_RATE(744000000, 62, 1, 1), + PLL_RATE(768000000, 64, 1, 1), + PLL_RATE(792000000, 66, 1, 1), + PLL_RATE(816000000, 68, 1, 1), + PLL_RATE(840000000, 70, 1, 1), + PLL_RATE(864000000, 72, 1, 1), + PLL_RATE(888000000, 74, 1, 1), + PLL_RATE(912000000, 76, 1, 1), + PLL_RATE(936000000, 78, 1, 1), + PLL_RATE(960000000, 80, 1, 1), + PLL_RATE(984000000, 82, 1, 1), + PLL_RATE(1008000000, 84, 1, 1), + PLL_RATE(1032000000, 86, 1, 1), + PLL_RATE(1056000000, 88, 1, 1), + PLL_RATE(1080000000, 90, 1, 1), + PLL_RATE(1104000000, 92, 1, 1), + PLL_RATE(1128000000, 94, 1, 1), + PLL_RATE(1152000000, 96, 1, 1), + PLL_RATE(1176000000, 98, 1, 1), + PLL_RATE(1200000000, 50, 1, 0), + PLL_RATE(1224000000, 51, 1, 0), + PLL_RATE(1248000000, 52, 1, 0), + PLL_RATE(1272000000, 53, 1, 0), + PLL_RATE(1296000000, 54, 1, 0), + PLL_RATE(1320000000, 55, 1, 0), + PLL_RATE(1344000000, 56, 1, 0), + PLL_RATE(1368000000, 57, 1, 0), + PLL_RATE(1392000000, 58, 1, 0), + PLL_RATE(1416000000, 59, 1, 0), + PLL_RATE(1440000000, 60, 1, 0), + PLL_RATE(1464000000, 61, 1, 0), + PLL_RATE(1488000000, 62, 1, 0), + PLL_RATE(1512000000, 63, 1, 0), + PLL_RATE(1536000000, 64, 1, 0), + { /* sentinel */ }, +}; + +static const struct clk_div_table cpu_div_table[] = { + { .val = 1, .div = 1 }, + { .val = 2, .div = 2 }, + { .val = 3, .div = 3 }, + { .val = 2, .div = 4 }, + { .val = 3, .div = 6 }, + { .val = 4, .div = 8 }, + { .val = 5, .div = 10 }, + { .val = 6, .div = 12 }, + { .val = 7, .div = 14 }, + { .val = 8, .div = 16 }, + { /* sentinel */ }, +}; + +PNAME(p_xtal) = { "xtal" }; +PNAME(p_fclk_div) = { "fixed_pll" }; +PNAME(p_cpu_clk) = { "sys_pll" }; +PNAME(p_clk81) = { "fclk_div3", "fclk_div4", "fclk_div5" }; +PNAME(p_mali) = { "fclk_div3", "fclk_div4", "fclk_div5", + "fclk_div7", "zero" }; + +static u32 mux_table_clk81[] = { 6, 5, 7 }; +static u32 mux_table_mali[] = { 6, 5, 7, 4, 0 }; + +static struct pll_conf pll_confs = { + .m = PARM(0x00, 0, 9), + .n = PARM(0x00, 9, 5), + .od = PARM(0x00, 16, 2), +}; + +static struct pll_conf sys_pll_conf = { + .m = PARM(0x00, 0, 9), + .n = PARM(0x00, 9, 5), + .od = PARM(0x00, 16, 2), + .rate_table = sys_pll_rate_table, +}; + +static const struct composite_conf clk81_conf __initconst = { + .mux_table = mux_table_clk81, + .mux_flags = CLK_MUX_READ_ONLY, + .mux_parm = PARM(0x00, 12, 3), + .div_parm = PARM(0x00, 0, 7), + .gate_parm = PARM(0x00, 7, 1), +}; + +static const struct composite_conf mali_conf __initconst = { + .mux_table = mux_table_mali, + .mux_parm = PARM(0x00, 9, 3), + .div_parm = PARM(0x00, 0, 7), + .gate_parm = PARM(0x00, 8, 1), +}; + +static const struct clk_conf meson8b_xtal_conf __initconst = + FIXED_RATE_P(MESON8B_REG_CTL0_ADDR, CLKID_XTAL, "xtal", + CLK_IS_ROOT, PARM(0x00, 4, 7)); + +static const struct clk_conf meson8b_clk_confs[] __initconst = { + FIXED_RATE(CLKID_ZERO, "zero", CLK_IS_ROOT, 0), + PLL(MESON8B_REG_PLL_FIXED, CLKID_PLL_FIXED, "fixed_pll", + p_xtal, 0, &pll_confs), + PLL(MESON8B_REG_PLL_VID, CLKID_PLL_VID, "vid_pll", + p_xtal, 0, &pll_confs), + PLL(MESON8B_REG_PLL_SYS, CLKID_PLL_SYS, "sys_pll", + p_xtal, 0, &sys_pll_conf), + FIXED_FACTOR_DIV(CLKID_FCLK_DIV2, "fclk_div2", p_fclk_div, 0, 2), + FIXED_FACTOR_DIV(CLKID_FCLK_DIV3, "fclk_div3", p_fclk_div, 0, 3), + FIXED_FACTOR_DIV(CLKID_FCLK_DIV4, "fclk_div4", p_fclk_div, 0, 4), + FIXED_FACTOR_DIV(CLKID_FCLK_DIV5, "fclk_div5", p_fclk_div, 0, 5), + FIXED_FACTOR_DIV(CLKID_FCLK_DIV7, "fclk_div7", p_fclk_div, 0, 7), + CPU(MESON8B_REG_SYS_CPU_CNTL1, CLKID_CPUCLK, "a5_clk", p_cpu_clk, + cpu_div_table), + COMPOSITE(MESON8B_REG_HHI_MPEG, CLKID_CLK81, "clk81", p_clk81, + CLK_SET_RATE_NO_REPARENT | CLK_IGNORE_UNUSED, &clk81_conf), + COMPOSITE(MESON8B_REG_MALI, CLKID_MALI, "mali", p_mali, + CLK_IGNORE_UNUSED, &mali_conf), +}; + +static void __init meson8b_clkc_init(struct device_node *np) +{ + void __iomem *clk_base; + + if (!meson_clk_init(np, CLK_NR_CLKS)) + return; + + /* XTAL */ + clk_base = of_iomap(np, 0); + if (!clk_base) { + pr_err("%s: Unable to map xtal base\n", __func__); + return; + } + + meson_clk_register_clks(&meson8b_xtal_conf, 1, clk_base); + iounmap(clk_base); + + /* Generic clocks and PLLs */ + clk_base = of_iomap(np, 1); + if (!clk_base) { + pr_err("%s: Unable to map clk base\n", __func__); + return; + } + + meson_clk_register_clks(meson8b_clk_confs, + ARRAY_SIZE(meson8b_clk_confs), + clk_base); +} +CLK_OF_DECLARE(meson8b_clock, "amlogic,meson8b-clkc", meson8b_clkc_init); diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 3caaf7cc169c..9d4bc41e4239 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -12,3 +12,5 @@ obj-$(CONFIG_MACH_MMP2_DT) += clk-of-mmp2.o obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o obj-$(CONFIG_CPU_PXA910) += clk-pxa910.o obj-$(CONFIG_CPU_MMP2) += clk-mmp2.o + +obj-y += clk-of-pxa1928.o diff --git a/drivers/clk/mmp/clk-apbc.c b/drivers/clk/mmp/clk-apbc.c index d14120eaa71f..09d41c717c52 100644 --- a/drivers/clk/mmp/clk-apbc.c +++ b/drivers/clk/mmp/clk-apbc.c @@ -115,7 +115,7 @@ static void clk_apbc_unprepare(struct clk_hw *hw) spin_unlock_irqrestore(apbc->lock, flags); } -struct clk_ops clk_apbc_ops = { +static struct clk_ops clk_apbc_ops = { .prepare = clk_apbc_prepare, .unprepare = clk_apbc_unprepare, }; diff --git a/drivers/clk/mmp/clk-apmu.c b/drivers/clk/mmp/clk-apmu.c index abe182b2377f..cdcf2d7f321e 100644 --- a/drivers/clk/mmp/clk-apmu.c +++ b/drivers/clk/mmp/clk-apmu.c @@ -61,7 +61,7 @@ static void clk_apmu_disable(struct clk_hw *hw) spin_unlock_irqrestore(apmu->lock, flags); } -struct clk_ops clk_apmu_ops = { +static struct clk_ops clk_apmu_ops = { .enable = clk_apmu_enable, .disable = clk_apmu_disable, }; diff --git a/drivers/clk/mmp/clk-mmp2.c b/drivers/clk/mmp/clk-mmp2.c index 5c90a4230fa3..09d2832fbd78 100644 --- a/drivers/clk/mmp/clk-mmp2.c +++ b/drivers/clk/mmp/clk-mmp2.c @@ -63,10 +63,8 @@ static struct mmp_clk_factor_masks uart_factor_masks = { }; static struct mmp_clk_factor_tbl uart_factor_tbl[] = { - {.num = 14634, .den = 2165}, /*14.745MHZ */ + {.num = 8125, .den = 1536}, /*14.745MHZ */ {.num = 3521, .den = 689}, /*19.23MHZ */ - {.num = 9679, .den = 5728}, /*58.9824MHZ */ - {.num = 15850, .den = 9451}, /*59.429MHZ */ }; static const char *uart_parent[] = {"uart_pll", "vctcxo"}; diff --git a/drivers/clk/mmp/clk-of-mmp2.c b/drivers/clk/mmp/clk-of-mmp2.c index 2cbc2b43ae52..251533d87c65 100644 --- a/drivers/clk/mmp/clk-of-mmp2.c +++ b/drivers/clk/mmp/clk-of-mmp2.c @@ -30,6 +30,7 @@ #define APBC_TWSI4 0x7c #define APBC_TWSI5 0x80 #define APBC_KPC 0x18 +#define APBC_TIMER 0x24 #define APBC_UART0 0x2c #define APBC_UART1 0x30 #define APBC_UART2 0x34 @@ -98,10 +99,8 @@ static struct mmp_clk_factor_masks uart_factor_masks = { }; static struct mmp_clk_factor_tbl uart_factor_tbl[] = { - {.num = 14634, .den = 2165}, /*14.745MHZ */ + {.num = 8125, .den = 1536}, /*14.745MHZ */ {.num = 3521, .den = 689}, /*19.23MHZ */ - {.num = 9679, .den = 5728}, /*58.9824MHZ */ - {.num = 15850, .den = 9451}, /*59.429MHZ */ }; static void mmp2_pll_init(struct mmp2_clk_unit *pxa_unit) @@ -134,6 +133,9 @@ static DEFINE_SPINLOCK(ssp2_lock); static DEFINE_SPINLOCK(ssp3_lock); static const char *ssp_parent_names[] = {"vctcxo_4", "vctcxo_2", "vctcxo", "pll1_16"}; +static DEFINE_SPINLOCK(timer_lock); +static const char *timer_parent_names[] = {"clk32", "vctcxo_2", "vctcxo_4", "vctcxo"}; + static DEFINE_SPINLOCK(reset_lock); static struct mmp_param_mux_clk apbc_mux_clks[] = { @@ -145,6 +147,7 @@ static struct mmp_param_mux_clk apbc_mux_clks[] = { {0, "ssp1_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP1, 4, 3, 0, &ssp1_lock}, {0, "ssp2_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP2, 4, 3, 0, &ssp2_lock}, {0, "ssp3_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP3, 4, 3, 0, &ssp3_lock}, + {0, "timer_mux", timer_parent_names, ARRAY_SIZE(timer_parent_names), CLK_SET_RATE_PARENT, APBC_TIMER, 4, 3, 0, &timer_lock}, }; static struct mmp_param_gate_clk apbc_gate_clks[] = { @@ -170,6 +173,7 @@ static struct mmp_param_gate_clk apbc_gate_clks[] = { {MMP2_CLK_SSP1, "ssp1_clk", "ssp1_mux", CLK_SET_RATE_PARENT, APBC_SSP1, 0x7, 0x3, 0x0, 0, &ssp1_lock}, {MMP2_CLK_SSP2, "ssp2_clk", "ssp2_mux", CLK_SET_RATE_PARENT, APBC_SSP2, 0x7, 0x3, 0x0, 0, &ssp2_lock}, {MMP2_CLK_SSP3, "ssp3_clk", "ssp3_mux", CLK_SET_RATE_PARENT, APBC_SSP3, 0x7, 0x3, 0x0, 0, &ssp3_lock}, + {MMP2_CLK_TIMER, "timer_clk", "timer_mux", CLK_SET_RATE_PARENT, APBC_TIMER, 0x7, 0x3, 0x0, 0, &timer_lock}, }; static void mmp2_apb_periph_clk_init(struct mmp2_clk_unit *pxa_unit) diff --git a/drivers/clk/mmp/clk-of-pxa168.c b/drivers/clk/mmp/clk-of-pxa168.c index 5b1810dc4bd2..64eaf4141c69 100644 --- a/drivers/clk/mmp/clk-of-pxa168.c +++ b/drivers/clk/mmp/clk-of-pxa168.c @@ -32,6 +32,7 @@ #define APBC_PWM1 0x10 #define APBC_PWM2 0x14 #define APBC_PWM3 0x18 +#define APBC_TIMER 0x34 #define APBC_SSP0 0x81c #define APBC_SSP1 0x820 #define APBC_SSP2 0x84c @@ -58,6 +59,7 @@ static struct mmp_param_fixed_rate_clk fixed_rate_clks[] = { {PXA168_CLK_CLK32, "clk32", NULL, CLK_IS_ROOT, 32768}, {PXA168_CLK_VCTCXO, "vctcxo", NULL, CLK_IS_ROOT, 26000000}, {PXA168_CLK_PLL1, "pll1", NULL, CLK_IS_ROOT, 624000000}, + {PXA168_CLK_USB_PLL, "usb_pll", NULL, CLK_IS_ROOT, 480000000}, }; static struct mmp_param_fixed_factor_clk fixed_factor_clks[] = { @@ -70,6 +72,7 @@ static struct mmp_param_fixed_factor_clk fixed_factor_clks[] = { {PXA168_CLK_PLL1_24, "pll1_24", "pll1_12", 1, 2, 0}, {PXA168_CLK_PLL1_48, "pll1_48", "pll1_24", 1, 2, 0}, {PXA168_CLK_PLL1_96, "pll1_96", "pll1_48", 1, 2, 0}, + {PXA168_CLK_PLL1_192, "pll1_192", "pll1_96", 1, 2, 0}, {PXA168_CLK_PLL1_13, "pll1_13", "pll1", 1, 13, 0}, {PXA168_CLK_PLL1_13_1_5, "pll1_13_1_5", "pll1_13", 2, 3, 0}, {PXA168_CLK_PLL1_2_1_5, "pll1_2_1_5", "pll1_2", 2, 3, 0}, @@ -119,6 +122,9 @@ static DEFINE_SPINLOCK(ssp3_lock); static DEFINE_SPINLOCK(ssp4_lock); static const char *ssp_parent_names[] = {"pll1_96", "pll1_48", "pll1_24", "pll1_12"}; +static DEFINE_SPINLOCK(timer_lock); +static const char *timer_parent_names[] = {"pll1_48", "clk32", "pll1_96", "pll1_192"}; + static DEFINE_SPINLOCK(reset_lock); static struct mmp_param_mux_clk apbc_mux_clks[] = { @@ -130,6 +136,7 @@ static struct mmp_param_mux_clk apbc_mux_clks[] = { {0, "ssp2_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP2, 4, 3, 0, &ssp2_lock}, {0, "ssp3_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP3, 4, 3, 0, &ssp3_lock}, {0, "ssp4_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP4, 4, 3, 0, &ssp4_lock}, + {0, "timer_mux", timer_parent_names, ARRAY_SIZE(timer_parent_names), CLK_SET_RATE_PARENT, APBC_TIMER, 4, 3, 0, &timer_lock}, }; static struct mmp_param_gate_clk apbc_gate_clks[] = { @@ -151,6 +158,7 @@ static struct mmp_param_gate_clk apbc_gate_clks[] = { {PXA168_CLK_SSP2, "ssp2_clk", "ssp2_mux", CLK_SET_RATE_PARENT, APBC_SSP2, 0x3, 0x3, 0x0, 0, &ssp2_lock}, {PXA168_CLK_SSP3, "ssp3_clk", "ssp3_mux", CLK_SET_RATE_PARENT, APBC_SSP3, 0x3, 0x3, 0x0, 0, &ssp3_lock}, {PXA168_CLK_SSP4, "ssp4_clk", "ssp4_mux", CLK_SET_RATE_PARENT, APBC_SSP4, 0x3, 0x3, 0x0, 0, &ssp4_lock}, + {PXA168_CLK_TIMER, "timer_clk", "timer_mux", CLK_SET_RATE_PARENT, APBC_TIMER, 0x3, 0x3, 0x0, 0, &timer_lock}, }; static void pxa168_apb_periph_clk_init(struct pxa168_clk_unit *pxa_unit) diff --git a/drivers/clk/mmp/clk-of-pxa1928.c b/drivers/clk/mmp/clk-of-pxa1928.c new file mode 100644 index 000000000000..433a5ae1eae0 --- /dev/null +++ b/drivers/clk/mmp/clk-of-pxa1928.c @@ -0,0 +1,265 @@ +/* + * pxa1928 clock framework source file + * + * Copyright (C) 2015 Linaro, Ltd. + * Rob Herring <robh@kernel.org> + * + * Based on drivers/clk/mmp/clk-of-mmp2.c: + * Copyright (C) 2012 Marvell + * Chao Xie <xiechao.mail@gmail.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/of_address.h> +#include <linux/slab.h> +#include <linux/spinlock.h> + +#include <dt-bindings/clock/marvell,pxa1928.h> + +#include "clk.h" +#include "reset.h" + +#define MPMU_UART_PLL 0x14 + +struct pxa1928_clk_unit { + struct mmp_clk_unit unit; + void __iomem *mpmu_base; + void __iomem *apmu_base; + void __iomem *apbc_base; + void __iomem *apbcp_base; +}; + +static struct mmp_param_fixed_rate_clk fixed_rate_clks[] = { + {0, "clk32", NULL, CLK_IS_ROOT, 32768}, + {0, "vctcxo", NULL, CLK_IS_ROOT, 26000000}, + {0, "pll1_624", NULL, CLK_IS_ROOT, 624000000}, + {0, "pll5p", NULL, CLK_IS_ROOT, 832000000}, + {0, "pll5", NULL, CLK_IS_ROOT, 1248000000}, + {0, "usb_pll", NULL, CLK_IS_ROOT, 480000000}, +}; + +static struct mmp_param_fixed_factor_clk fixed_factor_clks[] = { + {0, "pll1_d2", "pll1_624", 1, 2, 0}, + {0, "pll1_d9", "pll1_624", 1, 9, 0}, + {0, "pll1_d12", "pll1_624", 1, 12, 0}, + {0, "pll1_d16", "pll1_624", 1, 16, 0}, + {0, "pll1_d20", "pll1_624", 1, 20, 0}, + {0, "pll1_416", "pll1_624", 2, 3, 0}, + {0, "vctcxo_d2", "vctcxo", 1, 2, 0}, + {0, "vctcxo_d4", "vctcxo", 1, 4, 0}, +}; + +static struct mmp_clk_factor_masks uart_factor_masks = { + .factor = 2, + .num_mask = 0x1fff, + .den_mask = 0x1fff, + .num_shift = 16, + .den_shift = 0, +}; + +static struct mmp_clk_factor_tbl uart_factor_tbl[] = { + {.num = 832, .den = 234}, /*58.5MHZ */ + {.num = 1, .den = 1}, /*26MHZ */ +}; + +static void pxa1928_pll_init(struct pxa1928_clk_unit *pxa_unit) +{ + struct clk *clk; + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_fixed_rate_clks(unit, fixed_rate_clks, + ARRAY_SIZE(fixed_rate_clks)); + + mmp_register_fixed_factor_clks(unit, fixed_factor_clks, + ARRAY_SIZE(fixed_factor_clks)); + + clk = mmp_clk_register_factor("uart_pll", "pll1_416", + CLK_SET_RATE_PARENT, + pxa_unit->mpmu_base + MPMU_UART_PLL, + &uart_factor_masks, uart_factor_tbl, + ARRAY_SIZE(uart_factor_tbl), NULL); +} + +static DEFINE_SPINLOCK(uart0_lock); +static DEFINE_SPINLOCK(uart1_lock); +static DEFINE_SPINLOCK(uart2_lock); +static DEFINE_SPINLOCK(uart3_lock); +static const char *uart_parent_names[] = {"uart_pll", "vctcxo"}; + +static DEFINE_SPINLOCK(ssp0_lock); +static DEFINE_SPINLOCK(ssp1_lock); +static const char *ssp_parent_names[] = {"vctcxo_d4", "vctcxo_d2", "vctcxo", "pll1_d12"}; + +static DEFINE_SPINLOCK(reset_lock); + +static struct mmp_param_mux_clk apbc_mux_clks[] = { + {0, "uart0_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, PXA1928_CLK_UART0 * 4, 4, 3, 0, &uart0_lock}, + {0, "uart1_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, PXA1928_CLK_UART1 * 4, 4, 3, 0, &uart1_lock}, + {0, "uart2_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, PXA1928_CLK_UART2 * 4, 4, 3, 0, &uart2_lock}, + {0, "uart3_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, PXA1928_CLK_UART3 * 4, 4, 3, 0, &uart3_lock}, + {0, "ssp0_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, PXA1928_CLK_SSP0 * 4, 4, 3, 0, &ssp0_lock}, + {0, "ssp1_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, PXA1928_CLK_SSP1 * 4, 4, 3, 0, &ssp1_lock}, +}; + +static struct mmp_param_gate_clk apbc_gate_clks[] = { + {PXA1928_CLK_TWSI0, "twsi0_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_TWSI0 * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA1928_CLK_TWSI1, "twsi1_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_TWSI1 * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA1928_CLK_TWSI2, "twsi2_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_TWSI2 * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA1928_CLK_TWSI3, "twsi3_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_TWSI3 * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA1928_CLK_TWSI4, "twsi4_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_TWSI4 * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA1928_CLK_TWSI5, "twsi5_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_TWSI5 * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA1928_CLK_GPIO, "gpio_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_GPIO * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA1928_CLK_KPC, "kpc_clk", "clk32", CLK_SET_RATE_PARENT, PXA1928_CLK_KPC * 4, 0x3, 0x3, 0x0, MMP_CLK_GATE_NEED_DELAY, NULL}, + {PXA1928_CLK_RTC, "rtc_clk", "clk32", CLK_SET_RATE_PARENT, PXA1928_CLK_RTC * 4, 0x83, 0x83, 0x0, MMP_CLK_GATE_NEED_DELAY, NULL}, + {PXA1928_CLK_PWM0, "pwm0_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_PWM0 * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA1928_CLK_PWM1, "pwm1_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_PWM1 * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA1928_CLK_PWM2, "pwm2_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_PWM2 * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA1928_CLK_PWM3, "pwm3_clk", "vctcxo", CLK_SET_RATE_PARENT, PXA1928_CLK_PWM3 * 4, 0x3, 0x3, 0x0, 0, &reset_lock}, + /* The gate clocks has mux parent. */ + {PXA1928_CLK_UART0, "uart0_clk", "uart0_mux", CLK_SET_RATE_PARENT, PXA1928_CLK_UART0 * 4, 0x3, 0x3, 0x0, 0, &uart0_lock}, + {PXA1928_CLK_UART1, "uart1_clk", "uart1_mux", CLK_SET_RATE_PARENT, PXA1928_CLK_UART1 * 4, 0x3, 0x3, 0x0, 0, &uart1_lock}, + {PXA1928_CLK_UART2, "uart2_clk", "uart2_mux", CLK_SET_RATE_PARENT, PXA1928_CLK_UART2 * 4, 0x3, 0x3, 0x0, 0, &uart2_lock}, + {PXA1928_CLK_UART3, "uart3_clk", "uart3_mux", CLK_SET_RATE_PARENT, PXA1928_CLK_UART3 * 4, 0x3, 0x3, 0x0, 0, &uart3_lock}, + {PXA1928_CLK_SSP0, "ssp0_clk", "ssp0_mux", CLK_SET_RATE_PARENT, PXA1928_CLK_SSP0 * 4, 0x3, 0x3, 0x0, 0, &ssp0_lock}, + {PXA1928_CLK_SSP1, "ssp1_clk", "ssp1_mux", CLK_SET_RATE_PARENT, PXA1928_CLK_SSP1 * 4, 0x3, 0x3, 0x0, 0, &ssp1_lock}, +}; + +static void pxa1928_apb_periph_clk_init(struct pxa1928_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_mux_clks(unit, apbc_mux_clks, pxa_unit->apbc_base, + ARRAY_SIZE(apbc_mux_clks)); + + mmp_register_gate_clks(unit, apbc_gate_clks, pxa_unit->apbc_base, + ARRAY_SIZE(apbc_gate_clks)); +} + +static DEFINE_SPINLOCK(sdh0_lock); +static DEFINE_SPINLOCK(sdh1_lock); +static DEFINE_SPINLOCK(sdh2_lock); +static DEFINE_SPINLOCK(sdh3_lock); +static DEFINE_SPINLOCK(sdh4_lock); +static const char *sdh_parent_names[] = {"pll1_624", "pll5p", "pll5", "pll1_416"}; + +static DEFINE_SPINLOCK(usb_lock); + +static struct mmp_param_mux_clk apmu_mux_clks[] = { + {0, "sdh_mux", sdh_parent_names, ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, PXA1928_CLK_SDH0 * 4, 8, 2, 0, &sdh0_lock}, +}; + +static struct mmp_param_div_clk apmu_div_clks[] = { + {0, "sdh_div", "sdh_mux", 0, PXA1928_CLK_SDH0 * 4, 10, 4, CLK_DIVIDER_ONE_BASED, &sdh0_lock}, +}; + +static struct mmp_param_gate_clk apmu_gate_clks[] = { + {PXA1928_CLK_USB, "usb_clk", "usb_pll", 0, PXA1928_CLK_USB * 4, 0x9, 0x9, 0x0, 0, &usb_lock}, + {PXA1928_CLK_HSIC, "hsic_clk", "usb_pll", 0, PXA1928_CLK_HSIC * 4, 0x9, 0x9, 0x0, 0, &usb_lock}, + /* The gate clocks has mux parent. */ + {PXA1928_CLK_SDH0, "sdh0_clk", "sdh_div", CLK_SET_RATE_PARENT, PXA1928_CLK_SDH0 * 4, 0x1b, 0x1b, 0x0, 0, &sdh0_lock}, + {PXA1928_CLK_SDH1, "sdh1_clk", "sdh_div", CLK_SET_RATE_PARENT, PXA1928_CLK_SDH1 * 4, 0x1b, 0x1b, 0x0, 0, &sdh1_lock}, + {PXA1928_CLK_SDH2, "sdh2_clk", "sdh_div", CLK_SET_RATE_PARENT, PXA1928_CLK_SDH2 * 4, 0x1b, 0x1b, 0x0, 0, &sdh2_lock}, + {PXA1928_CLK_SDH3, "sdh3_clk", "sdh_div", CLK_SET_RATE_PARENT, PXA1928_CLK_SDH3 * 4, 0x1b, 0x1b, 0x0, 0, &sdh3_lock}, + {PXA1928_CLK_SDH4, "sdh4_clk", "sdh_div", CLK_SET_RATE_PARENT, PXA1928_CLK_SDH4 * 4, 0x1b, 0x1b, 0x0, 0, &sdh4_lock}, +}; + +static void pxa1928_axi_periph_clk_init(struct pxa1928_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_mux_clks(unit, apmu_mux_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_mux_clks)); + + mmp_register_div_clks(unit, apmu_div_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_div_clks)); + + mmp_register_gate_clks(unit, apmu_gate_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_gate_clks)); +} + +static void pxa1928_clk_reset_init(struct device_node *np, + struct pxa1928_clk_unit *pxa_unit) +{ + struct mmp_clk_reset_cell *cells; + int i, base, nr_resets; + + nr_resets = ARRAY_SIZE(apbc_gate_clks); + cells = kcalloc(nr_resets, sizeof(*cells), GFP_KERNEL); + if (!cells) + return; + + base = 0; + for (i = 0; i < nr_resets; i++) { + cells[base + i].clk_id = apbc_gate_clks[i].id; + cells[base + i].reg = + pxa_unit->apbc_base + apbc_gate_clks[i].offset; + cells[base + i].flags = 0; + cells[base + i].lock = apbc_gate_clks[i].lock; + cells[base + i].bits = 0x4; + } + + mmp_clk_reset_register(np, cells, nr_resets); +} + +static void __init pxa1928_mpmu_clk_init(struct device_node *np) +{ + struct pxa1928_clk_unit *pxa_unit; + + pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL); + if (!pxa_unit) + return; + + pxa_unit->mpmu_base = of_iomap(np, 0); + if (!pxa_unit->mpmu_base) { + pr_err("failed to map mpmu registers\n"); + return; + } + + pxa1928_pll_init(pxa_unit); +} +CLK_OF_DECLARE(pxa1928_mpmu_clk, "marvell,pxa1928-mpmu", pxa1928_mpmu_clk_init); + +static void __init pxa1928_apmu_clk_init(struct device_node *np) +{ + struct pxa1928_clk_unit *pxa_unit; + + pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL); + if (!pxa_unit) + return; + + pxa_unit->apmu_base = of_iomap(np, 0); + if (!pxa_unit->apmu_base) { + pr_err("failed to map apmu registers\n"); + return; + } + + mmp_clk_init(np, &pxa_unit->unit, PXA1928_APMU_NR_CLKS); + + pxa1928_axi_periph_clk_init(pxa_unit); +} +CLK_OF_DECLARE(pxa1928_apmu_clk, "marvell,pxa1928-apmu", pxa1928_apmu_clk_init); + +static void __init pxa1928_apbc_clk_init(struct device_node *np) +{ + struct pxa1928_clk_unit *pxa_unit; + + pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL); + if (!pxa_unit) + return; + + pxa_unit->apbc_base = of_iomap(np, 0); + if (!pxa_unit->apbc_base) { + pr_err("failed to map apbc registers\n"); + return; + } + + mmp_clk_init(np, &pxa_unit->unit, PXA1928_APBC_NR_CLKS); + + pxa1928_apb_periph_clk_init(pxa_unit); + pxa1928_clk_reset_init(np, pxa_unit); +} +CLK_OF_DECLARE(pxa1928_apbc_clk, "marvell,pxa1928-apbc", pxa1928_apbc_clk_init); diff --git a/drivers/clk/mmp/clk-of-pxa910.c b/drivers/clk/mmp/clk-of-pxa910.c index 5e3c80dad336..13d6173326a4 100644 --- a/drivers/clk/mmp/clk-of-pxa910.c +++ b/drivers/clk/mmp/clk-of-pxa910.c @@ -35,6 +35,8 @@ #define APBC_SSP0 0x1c #define APBC_SSP1 0x20 #define APBC_SSP2 0x4c +#define APBC_TIMER0 0x30 +#define APBC_TIMER1 0x44 #define APBCP_TWSI1 0x28 #define APBCP_UART2 0x1c #define APMU_SDH0 0x54 @@ -57,6 +59,7 @@ static struct mmp_param_fixed_rate_clk fixed_rate_clks[] = { {PXA910_CLK_CLK32, "clk32", NULL, CLK_IS_ROOT, 32768}, {PXA910_CLK_VCTCXO, "vctcxo", NULL, CLK_IS_ROOT, 26000000}, {PXA910_CLK_PLL1, "pll1", NULL, CLK_IS_ROOT, 624000000}, + {PXA910_CLK_USB_PLL, "usb_pll", NULL, CLK_IS_ROOT, 480000000}, }; static struct mmp_param_fixed_factor_clk fixed_factor_clks[] = { @@ -69,6 +72,7 @@ static struct mmp_param_fixed_factor_clk fixed_factor_clks[] = { {PXA910_CLK_PLL1_24, "pll1_24", "pll1_12", 1, 2, 0}, {PXA910_CLK_PLL1_48, "pll1_48", "pll1_24", 1, 2, 0}, {PXA910_CLK_PLL1_96, "pll1_96", "pll1_48", 1, 2, 0}, + {PXA910_CLK_PLL1_192, "pll1_192", "pll1_96", 1, 2, 0}, {PXA910_CLK_PLL1_13, "pll1_13", "pll1", 1, 13, 0}, {PXA910_CLK_PLL1_13_1_5, "pll1_13_1_5", "pll1_13", 2, 3, 0}, {PXA910_CLK_PLL1_2_1_5, "pll1_2_1_5", "pll1_2", 2, 3, 0}, @@ -115,6 +119,10 @@ static DEFINE_SPINLOCK(ssp0_lock); static DEFINE_SPINLOCK(ssp1_lock); static const char *ssp_parent_names[] = {"pll1_96", "pll1_48", "pll1_24", "pll1_12"}; +static DEFINE_SPINLOCK(timer0_lock); +static DEFINE_SPINLOCK(timer1_lock); +static const char *timer_parent_names[] = {"pll1_48", "clk32", "pll1_96"}; + static DEFINE_SPINLOCK(reset_lock); static struct mmp_param_mux_clk apbc_mux_clks[] = { @@ -122,6 +130,8 @@ static struct mmp_param_mux_clk apbc_mux_clks[] = { {0, "uart1_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART1, 4, 3, 0, &uart1_lock}, {0, "ssp0_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP0, 4, 3, 0, &ssp0_lock}, {0, "ssp1_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP1, 4, 3, 0, &ssp1_lock}, + {0, "timer0_mux", timer_parent_names, ARRAY_SIZE(timer_parent_names), CLK_SET_RATE_PARENT, APBC_TIMER0, 4, 3, 0, &timer0_lock}, + {0, "timer1_mux", timer_parent_names, ARRAY_SIZE(timer_parent_names), CLK_SET_RATE_PARENT, APBC_TIMER1, 4, 3, 0, &timer1_lock}, }; static struct mmp_param_mux_clk apbcp_mux_clks[] = { @@ -142,6 +152,8 @@ static struct mmp_param_gate_clk apbc_gate_clks[] = { {PXA910_CLK_UART1, "uart1_clk", "uart1_mux", CLK_SET_RATE_PARENT, APBC_UART1, 0x3, 0x3, 0x0, 0, &uart1_lock}, {PXA910_CLK_SSP0, "ssp0_clk", "ssp0_mux", CLK_SET_RATE_PARENT, APBC_SSP0, 0x3, 0x3, 0x0, 0, &ssp0_lock}, {PXA910_CLK_SSP1, "ssp1_clk", "ssp1_mux", CLK_SET_RATE_PARENT, APBC_SSP1, 0x3, 0x3, 0x0, 0, &ssp1_lock}, + {PXA910_CLK_TIMER0, "timer0_clk", "timer0_mux", CLK_SET_RATE_PARENT, APBC_TIMER0, 0x3, 0x3, 0x0, 0, &timer0_lock}, + {PXA910_CLK_TIMER1, "timer1_clk", "timer1_mux", CLK_SET_RATE_PARENT, APBC_TIMER1, 0x3, 0x3, 0x0, 0, &timer1_lock}, }; static struct mmp_param_gate_clk apbcp_gate_clks[] = { diff --git a/drivers/clk/mvebu/armada-370.c b/drivers/clk/mvebu/armada-370.c index 756f0f39d6a3..2c7c1085f883 100644 --- a/drivers/clk/mvebu/armada-370.c +++ b/drivers/clk/mvebu/armada-370.c @@ -163,6 +163,7 @@ static const struct clk_gating_soc_desc a370_gating_desc[] __initconst = { { "pex1", "pex1_en", 9, 0 }, { "sata0", NULL, 15, 0 }, { "sdio", NULL, 17, 0 }, + { "crypto", NULL, 23, CLK_IGNORE_UNUSED }, { "tdm", NULL, 25, 0 }, { "ddr", NULL, 28, CLK_IGNORE_UNUSED }, { "sata1", NULL, 30, 0 }, diff --git a/drivers/clk/mxs/clk-imx23.c b/drivers/clk/mxs/clk-imx23.c index 22d136aa699f..32216f9b7f03 100644 --- a/drivers/clk/mxs/clk-imx23.c +++ b/drivers/clk/mxs/clk-imx23.c @@ -77,12 +77,12 @@ static void __init clk_misc_init(void) writel_relaxed(30 << BP_FRAC_IOFRAC, FRAC + SET); } -static const char *sel_pll[] __initdata = { "pll", "ref_xtal", }; -static const char *sel_cpu[] __initdata = { "ref_cpu", "ref_xtal", }; -static const char *sel_pix[] __initdata = { "ref_pix", "ref_xtal", }; -static const char *sel_io[] __initdata = { "ref_io", "ref_xtal", }; -static const char *cpu_sels[] __initdata = { "cpu_pll", "cpu_xtal", }; -static const char *emi_sels[] __initdata = { "emi_pll", "emi_xtal", }; +static const char *const sel_pll[] __initconst = { "pll", "ref_xtal", }; +static const char *const sel_cpu[] __initconst = { "ref_cpu", "ref_xtal", }; +static const char *const sel_pix[] __initconst = { "ref_pix", "ref_xtal", }; +static const char *const sel_io[] __initconst = { "ref_io", "ref_xtal", }; +static const char *const cpu_sels[] __initconst = { "cpu_pll", "cpu_xtal", }; +static const char *const emi_sels[] __initconst = { "emi_pll", "emi_xtal", }; enum imx23_clk { ref_xtal, pll, ref_cpu, ref_emi, ref_pix, ref_io, saif_sel, diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c index b1be3746ce95..a68670868baa 100644 --- a/drivers/clk/mxs/clk-imx28.c +++ b/drivers/clk/mxs/clk-imx28.c @@ -125,15 +125,15 @@ static void __init clk_misc_init(void) writel_relaxed(val, FRAC0); } -static const char *sel_cpu[] __initdata = { "ref_cpu", "ref_xtal", }; -static const char *sel_io0[] __initdata = { "ref_io0", "ref_xtal", }; -static const char *sel_io1[] __initdata = { "ref_io1", "ref_xtal", }; -static const char *sel_pix[] __initdata = { "ref_pix", "ref_xtal", }; -static const char *sel_gpmi[] __initdata = { "ref_gpmi", "ref_xtal", }; -static const char *sel_pll0[] __initdata = { "pll0", "ref_xtal", }; -static const char *cpu_sels[] __initdata = { "cpu_pll", "cpu_xtal", }; -static const char *emi_sels[] __initdata = { "emi_pll", "emi_xtal", }; -static const char *ptp_sels[] __initdata = { "ref_xtal", "pll0", }; +static const char *const sel_cpu[] __initconst = { "ref_cpu", "ref_xtal", }; +static const char *const sel_io0[] __initconst = { "ref_io0", "ref_xtal", }; +static const char *const sel_io1[] __initconst = { "ref_io1", "ref_xtal", }; +static const char *const sel_pix[] __initconst = { "ref_pix", "ref_xtal", }; +static const char *const sel_gpmi[] __initconst = { "ref_gpmi", "ref_xtal", }; +static const char *const sel_pll0[] __initconst = { "pll0", "ref_xtal", }; +static const char *const cpu_sels[] __initconst = { "cpu_pll", "cpu_xtal", }; +static const char *const emi_sels[] __initconst = { "emi_pll", "emi_xtal", }; +static const char *const ptp_sels[] __initconst = { "ref_xtal", "pll0", }; enum imx28_clk { ref_xtal, pll0, pll1, pll2, ref_cpu, ref_emi, ref_io0, ref_io1, diff --git a/drivers/clk/mxs/clk.h b/drivers/clk/mxs/clk.h index ef10ad9b5daa..f07d821dd75d 100644 --- a/drivers/clk/mxs/clk.h +++ b/drivers/clk/mxs/clk.h @@ -49,7 +49,7 @@ static inline struct clk *mxs_clk_gate(const char *name, } static inline struct clk *mxs_clk_mux(const char *name, void __iomem *reg, - u8 shift, u8 width, const char **parent_names, int num_parents) + u8 shift, u8 width, const char *const *parent_names, int num_parents) { return clk_register_mux(NULL, name, parent_names, num_parents, CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, diff --git a/drivers/clk/nxp/Makefile b/drivers/clk/nxp/Makefile new file mode 100644 index 000000000000..7f608b0ad7b4 --- /dev/null +++ b/drivers/clk/nxp/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_ARCH_LPC18XX) += clk-lpc18xx-cgu.o +obj-$(CONFIG_ARCH_LPC18XX) += clk-lpc18xx-ccu.o diff --git a/drivers/clk/nxp/clk-lpc18xx-ccu.c b/drivers/clk/nxp/clk-lpc18xx-ccu.c new file mode 100644 index 000000000000..eeaee97da110 --- /dev/null +++ b/drivers/clk/nxp/clk-lpc18xx-ccu.c @@ -0,0 +1,293 @@ +/* + * Clk driver for NXP LPC18xx/LPC43xx Clock Control Unit (CCU) + * + * Copyright (C) 2015 Joachim Eastwood <manabian@gmail.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/kernel.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/slab.h> +#include <linux/string.h> + +#include <dt-bindings/clock/lpc18xx-ccu.h> + +/* Bit defines for CCU branch configuration register */ +#define LPC18XX_CCU_RUN BIT(0) +#define LPC18XX_CCU_AUTO BIT(1) +#define LPC18XX_CCU_DIV BIT(5) +#define LPC18XX_CCU_DIVSTAT BIT(27) + +/* CCU branch feature bits */ +#define CCU_BRANCH_IS_BUS BIT(0) +#define CCU_BRANCH_HAVE_DIV2 BIT(1) + +#define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw) + +struct lpc18xx_branch_clk_data { + const char **name; + int num; +}; + +struct lpc18xx_clk_branch { + const char *base_name; + const char *name; + u16 offset; + u16 flags; + struct clk *clk; + struct clk_gate gate; +}; + +static struct lpc18xx_clk_branch clk_branches[] = { + {"base_apb3_clk", "apb3_bus", CLK_APB3_BUS, CCU_BRANCH_IS_BUS}, + {"base_apb3_clk", "apb3_i2c1", CLK_APB3_I2C1, 0}, + {"base_apb3_clk", "apb3_dac", CLK_APB3_DAC, 0}, + {"base_apb3_clk", "apb3_adc0", CLK_APB3_ADC0, 0}, + {"base_apb3_clk", "apb3_adc1", CLK_APB3_ADC1, 0}, + {"base_apb3_clk", "apb3_can0", CLK_APB3_CAN0, 0}, + + {"base_apb1_clk", "apb1_bus", CLK_APB1_BUS, CCU_BRANCH_IS_BUS}, + {"base_apb1_clk", "apb1_mc_pwm", CLK_APB1_MOTOCON_PWM, 0}, + {"base_apb1_clk", "apb1_i2c0", CLK_APB1_I2C0, 0}, + {"base_apb1_clk", "apb1_i2s", CLK_APB1_I2S, 0}, + {"base_apb1_clk", "apb1_can1", CLK_APB1_CAN1, 0}, + + {"base_spifi_clk", "spifi", CLK_SPIFI, 0}, + + {"base_cpu_clk", "cpu_bus", CLK_CPU_BUS, CCU_BRANCH_IS_BUS}, + {"base_cpu_clk", "cpu_spifi", CLK_CPU_SPIFI, 0}, + {"base_cpu_clk", "cpu_gpio", CLK_CPU_GPIO, 0}, + {"base_cpu_clk", "cpu_lcd", CLK_CPU_LCD, 0}, + {"base_cpu_clk", "cpu_ethernet", CLK_CPU_ETHERNET, 0}, + {"base_cpu_clk", "cpu_usb0", CLK_CPU_USB0, 0}, + {"base_cpu_clk", "cpu_emc", CLK_CPU_EMC, 0}, + {"base_cpu_clk", "cpu_sdio", CLK_CPU_SDIO, 0}, + {"base_cpu_clk", "cpu_dma", CLK_CPU_DMA, 0}, + {"base_cpu_clk", "cpu_core", CLK_CPU_CORE, 0}, + {"base_cpu_clk", "cpu_sct", CLK_CPU_SCT, 0}, + {"base_cpu_clk", "cpu_usb1", CLK_CPU_USB1, 0}, + {"base_cpu_clk", "cpu_emcdiv", CLK_CPU_EMCDIV, CCU_BRANCH_HAVE_DIV2}, + {"base_cpu_clk", "cpu_flasha", CLK_CPU_FLASHA, CCU_BRANCH_HAVE_DIV2}, + {"base_cpu_clk", "cpu_flashb", CLK_CPU_FLASHB, CCU_BRANCH_HAVE_DIV2}, + {"base_cpu_clk", "cpu_m0app", CLK_CPU_M0APP, CCU_BRANCH_HAVE_DIV2}, + {"base_cpu_clk", "cpu_adchs", CLK_CPU_ADCHS, CCU_BRANCH_HAVE_DIV2}, + {"base_cpu_clk", "cpu_eeprom", CLK_CPU_EEPROM, CCU_BRANCH_HAVE_DIV2}, + {"base_cpu_clk", "cpu_wwdt", CLK_CPU_WWDT, 0}, + {"base_cpu_clk", "cpu_uart0", CLK_CPU_UART0, 0}, + {"base_cpu_clk", "cpu_uart1", CLK_CPU_UART1, 0}, + {"base_cpu_clk", "cpu_ssp0", CLK_CPU_SSP0, 0}, + {"base_cpu_clk", "cpu_timer0", CLK_CPU_TIMER0, 0}, + {"base_cpu_clk", "cpu_timer1", CLK_CPU_TIMER1, 0}, + {"base_cpu_clk", "cpu_scu", CLK_CPU_SCU, 0}, + {"base_cpu_clk", "cpu_creg", CLK_CPU_CREG, 0}, + {"base_cpu_clk", "cpu_ritimer", CLK_CPU_RITIMER, 0}, + {"base_cpu_clk", "cpu_uart2", CLK_CPU_UART2, 0}, + {"base_cpu_clk", "cpu_uart3", CLK_CPU_UART3, 0}, + {"base_cpu_clk", "cpu_timer2", CLK_CPU_TIMER2, 0}, + {"base_cpu_clk", "cpu_timer3", CLK_CPU_TIMER3, 0}, + {"base_cpu_clk", "cpu_ssp1", CLK_CPU_SSP1, 0}, + {"base_cpu_clk", "cpu_qei", CLK_CPU_QEI, 0}, + + {"base_periph_clk", "periph_bus", CLK_PERIPH_BUS, CCU_BRANCH_IS_BUS}, + {"base_periph_clk", "periph_core", CLK_PERIPH_CORE, 0}, + {"base_periph_clk", "periph_sgpio", CLK_PERIPH_SGPIO, 0}, + + {"base_usb0_clk", "usb0", CLK_USB0, 0}, + {"base_usb1_clk", "usb1", CLK_USB1, 0}, + {"base_spi_clk", "spi", CLK_SPI, 0}, + {"base_adchs_clk", "adchs", CLK_ADCHS, 0}, + + {"base_audio_clk", "audio", CLK_AUDIO, 0}, + {"base_uart3_clk", "apb2_uart3", CLK_APB2_UART3, 0}, + {"base_uart2_clk", "apb2_uart2", CLK_APB2_UART2, 0}, + {"base_uart1_clk", "apb0_uart1", CLK_APB0_UART1, 0}, + {"base_uart0_clk", "apb0_uart0", CLK_APB0_UART0, 0}, + {"base_ssp1_clk", "apb2_ssp1", CLK_APB2_SSP1, 0}, + {"base_ssp0_clk", "apb0_ssp0", CLK_APB0_SSP0, 0}, + {"base_sdio_clk", "sdio", CLK_SDIO, 0}, +}; + +static struct clk *lpc18xx_ccu_branch_clk_get(struct of_phandle_args *clkspec, + void *data) +{ + struct lpc18xx_branch_clk_data *clk_data = data; + unsigned int offset = clkspec->args[0]; + int i, j; + + for (i = 0; i < ARRAY_SIZE(clk_branches); i++) { + if (clk_branches[i].offset != offset) + continue; + + for (j = 0; j < clk_data->num; j++) { + if (!strcmp(clk_branches[i].base_name, clk_data->name[j])) + return clk_branches[i].clk; + } + } + + pr_err("%s: invalid clock offset %d\n", __func__, offset); + + return ERR_PTR(-EINVAL); +} + +static int lpc18xx_ccu_gate_endisable(struct clk_hw *hw, bool enable) +{ + struct clk_gate *gate = to_clk_gate(hw); + u32 val; + + /* + * Divider field is write only, so divider stat field must + * be read so divider field can be set accordingly. + */ + val = clk_readl(gate->reg); + if (val & LPC18XX_CCU_DIVSTAT) + val |= LPC18XX_CCU_DIV; + + if (enable) { + val |= LPC18XX_CCU_RUN; + } else { + /* + * To safely disable a branch clock a squence of two separate + * writes must be used. First write should set the AUTO bit + * and the next write should clear the RUN bit. + */ + val |= LPC18XX_CCU_AUTO; + clk_writel(val, gate->reg); + + val &= ~LPC18XX_CCU_RUN; + } + + clk_writel(val, gate->reg); + + return 0; +} + +static int lpc18xx_ccu_gate_enable(struct clk_hw *hw) +{ + return lpc18xx_ccu_gate_endisable(hw, true); +} + +static void lpc18xx_ccu_gate_disable(struct clk_hw *hw) +{ + lpc18xx_ccu_gate_endisable(hw, false); +} + +static int lpc18xx_ccu_gate_is_enabled(struct clk_hw *hw) +{ + struct clk_gate *gate = to_clk_gate(hw); + + return clk_readl(gate->reg) & LPC18XX_CCU_RUN; +} + +static const struct clk_ops lpc18xx_ccu_gate_ops = { + .enable = lpc18xx_ccu_gate_enable, + .disable = lpc18xx_ccu_gate_disable, + .is_enabled = lpc18xx_ccu_gate_is_enabled, +}; + +static void lpc18xx_ccu_register_branch_gate_div(struct lpc18xx_clk_branch *branch, + void __iomem *reg_base, + const char *parent) +{ + const struct clk_ops *div_ops = NULL; + struct clk_divider *div = NULL; + struct clk_hw *div_hw = NULL; + + if (branch->flags & CCU_BRANCH_HAVE_DIV2) { + div = kzalloc(sizeof(*div), GFP_KERNEL); + if (!div) + return; + + div->reg = branch->offset + reg_base; + div->flags = CLK_DIVIDER_READ_ONLY; + div->shift = 27; + div->width = 1; + + div_hw = &div->hw; + div_ops = &clk_divider_ops; + } + + branch->gate.reg = branch->offset + reg_base; + branch->gate.bit_idx = 0; + + branch->clk = clk_register_composite(NULL, branch->name, &parent, 1, + NULL, NULL, + div_hw, div_ops, + &branch->gate.hw, &lpc18xx_ccu_gate_ops, 0); + if (IS_ERR(branch->clk)) { + kfree(div); + pr_warn("%s: failed to register %s\n", __func__, branch->name); + return; + } + + /* Grab essential branch clocks for CPU and SDRAM */ + switch (branch->offset) { + case CLK_CPU_EMC: + case CLK_CPU_CORE: + case CLK_CPU_CREG: + case CLK_CPU_EMCDIV: + clk_prepare_enable(branch->clk); + } +} + +static void lpc18xx_ccu_register_branch_clks(void __iomem *reg_base, + const char *base_name) +{ + const char *parent = base_name; + int i; + + for (i = 0; i < ARRAY_SIZE(clk_branches); i++) { + if (strcmp(clk_branches[i].base_name, base_name)) + continue; + + lpc18xx_ccu_register_branch_gate_div(&clk_branches[i], reg_base, + parent); + + if (clk_branches[i].flags & CCU_BRANCH_IS_BUS) + parent = clk_branches[i].name; + } +} + +static void __init lpc18xx_ccu_init(struct device_node *np) +{ + struct lpc18xx_branch_clk_data *clk_data; + void __iomem *reg_base; + int i, ret; + + reg_base = of_iomap(np, 0); + if (!reg_base) { + pr_warn("%s: failed to map address range\n", __func__); + return; + } + + clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL); + if (!clk_data) + return; + + clk_data->num = of_property_count_strings(np, "clock-names"); + clk_data->name = kcalloc(clk_data->num, sizeof(char *), GFP_KERNEL); + if (!clk_data->name) { + kfree(clk_data); + return; + } + + for (i = 0; i < clk_data->num; i++) { + ret = of_property_read_string_index(np, "clock-names", i, + &clk_data->name[i]); + if (ret) { + pr_warn("%s: failed to get clock name at idx %d\n", + __func__, i); + continue; + } + + lpc18xx_ccu_register_branch_clks(reg_base, clk_data->name[i]); + } + + of_clk_add_provider(np, lpc18xx_ccu_branch_clk_get, clk_data); +} +CLK_OF_DECLARE(lpc18xx_ccu, "nxp,lpc1850-ccu", lpc18xx_ccu_init); diff --git a/drivers/clk/nxp/clk-lpc18xx-cgu.c b/drivers/clk/nxp/clk-lpc18xx-cgu.c new file mode 100644 index 000000000000..81e9e1c788f4 --- /dev/null +++ b/drivers/clk/nxp/clk-lpc18xx-cgu.c @@ -0,0 +1,635 @@ +/* + * Clk driver for NXP LPC18xx/LPC43xx Clock Generation Unit (CGU) + * + * Copyright (C) 2015 Joachim Eastwood <manabian@gmail.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/kernel.h> +#include <linux/of.h> +#include <linux/of_address.h> + +#include <dt-bindings/clock/lpc18xx-cgu.h> + +/* Clock Generation Unit (CGU) registers */ +#define LPC18XX_CGU_XTAL_OSC_CTRL 0x018 +#define LPC18XX_CGU_PLL0USB_STAT 0x01c +#define LPC18XX_CGU_PLL0USB_CTRL 0x020 +#define LPC18XX_CGU_PLL0USB_MDIV 0x024 +#define LPC18XX_CGU_PLL0USB_NP_DIV 0x028 +#define LPC18XX_CGU_PLL0AUDIO_STAT 0x02c +#define LPC18XX_CGU_PLL0AUDIO_CTRL 0x030 +#define LPC18XX_CGU_PLL0AUDIO_MDIV 0x034 +#define LPC18XX_CGU_PLL0AUDIO_NP_DIV 0x038 +#define LPC18XX_CGU_PLL0AUDIO_FRAC 0x03c +#define LPC18XX_CGU_PLL1_STAT 0x040 +#define LPC18XX_CGU_PLL1_CTRL 0x044 +#define LPC18XX_PLL1_CTRL_FBSEL BIT(6) +#define LPC18XX_PLL1_CTRL_DIRECT BIT(7) +#define LPC18XX_CGU_IDIV_CTRL(n) (0x048 + (n) * sizeof(u32)) +#define LPC18XX_CGU_BASE_CLK(id) (0x05c + (id) * sizeof(u32)) +#define LPC18XX_CGU_PLL_CTRL_OFFSET 0x4 + +/* PLL0 bits common to both audio and USB PLL */ +#define LPC18XX_PLL0_STAT_LOCK BIT(0) +#define LPC18XX_PLL0_CTRL_PD BIT(0) +#define LPC18XX_PLL0_CTRL_BYPASS BIT(1) +#define LPC18XX_PLL0_CTRL_DIRECTI BIT(2) +#define LPC18XX_PLL0_CTRL_DIRECTO BIT(3) +#define LPC18XX_PLL0_CTRL_CLKEN BIT(4) +#define LPC18XX_PLL0_MDIV_MDEC_MASK 0x1ffff +#define LPC18XX_PLL0_MDIV_SELP_SHIFT 17 +#define LPC18XX_PLL0_MDIV_SELI_SHIFT 22 +#define LPC18XX_PLL0_MSEL_MAX BIT(15) + +/* Register value that gives PLL0 post/pre dividers equal to 1 */ +#define LPC18XX_PLL0_NP_DIVS_1 0x00302062 + +enum { + CLK_SRC_OSC32, + CLK_SRC_IRC, + CLK_SRC_ENET_RX_CLK, + CLK_SRC_ENET_TX_CLK, + CLK_SRC_GP_CLKIN, + CLK_SRC_RESERVED1, + CLK_SRC_OSC, + CLK_SRC_PLL0USB, + CLK_SRC_PLL0AUDIO, + CLK_SRC_PLL1, + CLK_SRC_RESERVED2, + CLK_SRC_RESERVED3, + CLK_SRC_IDIVA, + CLK_SRC_IDIVB, + CLK_SRC_IDIVC, + CLK_SRC_IDIVD, + CLK_SRC_IDIVE, + CLK_SRC_MAX +}; + +static const char *clk_src_names[CLK_SRC_MAX] = { + [CLK_SRC_OSC32] = "osc32", + [CLK_SRC_IRC] = "irc", + [CLK_SRC_ENET_RX_CLK] = "enet_rx_clk", + [CLK_SRC_ENET_TX_CLK] = "enet_tx_clk", + [CLK_SRC_GP_CLKIN] = "gp_clkin", + [CLK_SRC_OSC] = "osc", + [CLK_SRC_PLL0USB] = "pll0usb", + [CLK_SRC_PLL0AUDIO] = "pll0audio", + [CLK_SRC_PLL1] = "pll1", + [CLK_SRC_IDIVA] = "idiva", + [CLK_SRC_IDIVB] = "idivb", + [CLK_SRC_IDIVC] = "idivc", + [CLK_SRC_IDIVD] = "idivd", + [CLK_SRC_IDIVE] = "idive", +}; + +static const char *clk_base_names[BASE_CLK_MAX] = { + [BASE_SAFE_CLK] = "base_safe_clk", + [BASE_USB0_CLK] = "base_usb0_clk", + [BASE_PERIPH_CLK] = "base_periph_clk", + [BASE_USB1_CLK] = "base_usb1_clk", + [BASE_CPU_CLK] = "base_cpu_clk", + [BASE_SPIFI_CLK] = "base_spifi_clk", + [BASE_SPI_CLK] = "base_spi_clk", + [BASE_PHY_RX_CLK] = "base_phy_rx_clk", + [BASE_PHY_TX_CLK] = "base_phy_tx_clk", + [BASE_APB1_CLK] = "base_apb1_clk", + [BASE_APB3_CLK] = "base_apb3_clk", + [BASE_LCD_CLK] = "base_lcd_clk", + [BASE_ADCHS_CLK] = "base_adchs_clk", + [BASE_SDIO_CLK] = "base_sdio_clk", + [BASE_SSP0_CLK] = "base_ssp0_clk", + [BASE_SSP1_CLK] = "base_ssp1_clk", + [BASE_UART0_CLK] = "base_uart0_clk", + [BASE_UART1_CLK] = "base_uart1_clk", + [BASE_UART2_CLK] = "base_uart2_clk", + [BASE_UART3_CLK] = "base_uart3_clk", + [BASE_OUT_CLK] = "base_out_clk", + [BASE_AUDIO_CLK] = "base_audio_clk", + [BASE_CGU_OUT0_CLK] = "base_cgu_out0_clk", + [BASE_CGU_OUT1_CLK] = "base_cgu_out1_clk", +}; + +static u32 lpc18xx_cgu_pll0_src_ids[] = { + CLK_SRC_OSC32, CLK_SRC_IRC, CLK_SRC_ENET_RX_CLK, + CLK_SRC_ENET_TX_CLK, CLK_SRC_GP_CLKIN, CLK_SRC_OSC, + CLK_SRC_PLL1, CLK_SRC_IDIVA, CLK_SRC_IDIVB, CLK_SRC_IDIVC, + CLK_SRC_IDIVD, CLK_SRC_IDIVE, +}; + +static u32 lpc18xx_cgu_pll1_src_ids[] = { + CLK_SRC_OSC32, CLK_SRC_IRC, CLK_SRC_ENET_RX_CLK, + CLK_SRC_ENET_TX_CLK, CLK_SRC_GP_CLKIN, CLK_SRC_OSC, + CLK_SRC_PLL0USB, CLK_SRC_PLL0AUDIO, CLK_SRC_IDIVA, + CLK_SRC_IDIVB, CLK_SRC_IDIVC, CLK_SRC_IDIVD, CLK_SRC_IDIVE, +}; + +static u32 lpc18xx_cgu_idiva_src_ids[] = { + CLK_SRC_OSC32, CLK_SRC_IRC, CLK_SRC_ENET_RX_CLK, + CLK_SRC_ENET_TX_CLK, CLK_SRC_GP_CLKIN, CLK_SRC_OSC, + CLK_SRC_PLL0USB, CLK_SRC_PLL0AUDIO, CLK_SRC_PLL1 +}; + +static u32 lpc18xx_cgu_idivbcde_src_ids[] = { + CLK_SRC_OSC32, CLK_SRC_IRC, CLK_SRC_ENET_RX_CLK, + CLK_SRC_ENET_TX_CLK, CLK_SRC_GP_CLKIN, CLK_SRC_OSC, + CLK_SRC_PLL0AUDIO, CLK_SRC_PLL1, CLK_SRC_IDIVA, +}; + +static u32 lpc18xx_cgu_base_irc_src_ids[] = {CLK_SRC_IRC}; + +static u32 lpc18xx_cgu_base_usb0_src_ids[] = {CLK_SRC_PLL0USB}; + +static u32 lpc18xx_cgu_base_common_src_ids[] = { + CLK_SRC_OSC32, CLK_SRC_IRC, CLK_SRC_ENET_RX_CLK, + CLK_SRC_ENET_TX_CLK, CLK_SRC_GP_CLKIN, CLK_SRC_OSC, + CLK_SRC_PLL0AUDIO, CLK_SRC_PLL1, CLK_SRC_IDIVA, + CLK_SRC_IDIVB, CLK_SRC_IDIVC, CLK_SRC_IDIVD, CLK_SRC_IDIVE, +}; + +static u32 lpc18xx_cgu_base_all_src_ids[] = { + CLK_SRC_OSC32, CLK_SRC_IRC, CLK_SRC_ENET_RX_CLK, + CLK_SRC_ENET_TX_CLK, CLK_SRC_GP_CLKIN, CLK_SRC_OSC, + CLK_SRC_PLL0USB, CLK_SRC_PLL0AUDIO, CLK_SRC_PLL1, + CLK_SRC_IDIVA, CLK_SRC_IDIVB, CLK_SRC_IDIVC, + CLK_SRC_IDIVD, CLK_SRC_IDIVE, +}; + +struct lpc18xx_cgu_src_clk_div { + u8 clk_id; + u8 n_parents; + struct clk_divider div; + struct clk_mux mux; + struct clk_gate gate; +}; + +#define LPC1XX_CGU_SRC_CLK_DIV(_id, _width, _table) \ +{ \ + .clk_id = CLK_SRC_ ##_id, \ + .n_parents = ARRAY_SIZE(lpc18xx_cgu_ ##_table), \ + .div = { \ + .shift = 2, \ + .width = _width, \ + }, \ + .mux = { \ + .mask = 0x1f, \ + .shift = 24, \ + .table = lpc18xx_cgu_ ##_table, \ + }, \ + .gate = { \ + .bit_idx = 0, \ + .flags = CLK_GATE_SET_TO_DISABLE, \ + }, \ +} + +static struct lpc18xx_cgu_src_clk_div lpc18xx_cgu_src_clk_divs[] = { + LPC1XX_CGU_SRC_CLK_DIV(IDIVA, 2, idiva_src_ids), + LPC1XX_CGU_SRC_CLK_DIV(IDIVB, 4, idivbcde_src_ids), + LPC1XX_CGU_SRC_CLK_DIV(IDIVC, 4, idivbcde_src_ids), + LPC1XX_CGU_SRC_CLK_DIV(IDIVD, 4, idivbcde_src_ids), + LPC1XX_CGU_SRC_CLK_DIV(IDIVE, 8, idivbcde_src_ids), +}; + +struct lpc18xx_cgu_base_clk { + u8 clk_id; + u8 n_parents; + struct clk_mux mux; + struct clk_gate gate; +}; + +#define LPC1XX_CGU_BASE_CLK(_id, _table, _flags) \ +{ \ + .clk_id = BASE_ ##_id ##_CLK, \ + .n_parents = ARRAY_SIZE(lpc18xx_cgu_ ##_table), \ + .mux = { \ + .mask = 0x1f, \ + .shift = 24, \ + .table = lpc18xx_cgu_ ##_table, \ + .flags = _flags, \ + }, \ + .gate = { \ + .bit_idx = 0, \ + .flags = CLK_GATE_SET_TO_DISABLE, \ + }, \ +} + +static struct lpc18xx_cgu_base_clk lpc18xx_cgu_base_clks[] = { + LPC1XX_CGU_BASE_CLK(SAFE, base_irc_src_ids, CLK_MUX_READ_ONLY), + LPC1XX_CGU_BASE_CLK(USB0, base_usb0_src_ids, 0), + LPC1XX_CGU_BASE_CLK(PERIPH, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(USB1, base_all_src_ids, 0), + LPC1XX_CGU_BASE_CLK(CPU, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(SPIFI, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(SPI, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(PHY_RX, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(PHY_TX, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(APB1, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(APB3, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(LCD, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(ADCHS, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(SDIO, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(SSP0, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(SSP1, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(UART0, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(UART1, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(UART2, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(UART3, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(OUT, base_all_src_ids, 0), + { /* 21 reserved */ }, + { /* 22 reserved */ }, + { /* 23 reserved */ }, + { /* 24 reserved */ }, + LPC1XX_CGU_BASE_CLK(AUDIO, base_common_src_ids, 0), + LPC1XX_CGU_BASE_CLK(CGU_OUT0, base_all_src_ids, 0), + LPC1XX_CGU_BASE_CLK(CGU_OUT1, base_all_src_ids, 0), +}; + +struct lpc18xx_pll { + struct clk_hw hw; + void __iomem *reg; + spinlock_t *lock; + u8 flags; +}; + +#define to_lpc_pll(hw) container_of(hw, struct lpc18xx_pll, hw) + +struct lpc18xx_cgu_pll_clk { + u8 clk_id; + u8 n_parents; + u8 reg_offset; + struct clk_mux mux; + struct clk_gate gate; + struct lpc18xx_pll pll; + const struct clk_ops *pll_ops; +}; + +#define LPC1XX_CGU_CLK_PLL(_id, _table, _pll_ops) \ +{ \ + .clk_id = CLK_SRC_ ##_id, \ + .n_parents = ARRAY_SIZE(lpc18xx_cgu_ ##_table), \ + .reg_offset = LPC18XX_CGU_ ##_id ##_STAT, \ + .mux = { \ + .mask = 0x1f, \ + .shift = 24, \ + .table = lpc18xx_cgu_ ##_table, \ + }, \ + .gate = { \ + .bit_idx = 0, \ + .flags = CLK_GATE_SET_TO_DISABLE, \ + }, \ + .pll_ops = &lpc18xx_ ##_pll_ops, \ +} + +/* + * PLL0 uses a special register value encoding. The compute functions below + * are taken or derived from the LPC1850 user manual (section 12.6.3.3). + */ + +/* Compute PLL0 multiplier from decoded version */ +static u32 lpc18xx_pll0_mdec2msel(u32 x) +{ + int i; + + switch (x) { + case 0x18003: return 1; + case 0x10003: return 2; + default: + for (i = LPC18XX_PLL0_MSEL_MAX + 1; x != 0x4000 && i > 0; i--) + x = ((x ^ x >> 14) & 1) | (x << 1 & 0x7fff); + return i; + } +} +/* Compute PLL0 decoded multiplier from binary version */ +static u32 lpc18xx_pll0_msel2mdec(u32 msel) +{ + u32 i, x = 0x4000; + + switch (msel) { + case 0: return 0; + case 1: return 0x18003; + case 2: return 0x10003; + default: + for (i = msel; i <= LPC18XX_PLL0_MSEL_MAX; i++) + x = ((x ^ x >> 1) & 1) << 14 | (x >> 1 & 0xffff); + return x; + } +} + +/* Compute PLL0 bandwidth SELI reg from multiplier */ +static u32 lpc18xx_pll0_msel2seli(u32 msel) +{ + u32 tmp; + + if (msel > 16384) return 1; + if (msel > 8192) return 2; + if (msel > 2048) return 4; + if (msel >= 501) return 8; + if (msel >= 60) { + tmp = 1024 / (msel + 9); + return ((1024 == (tmp * (msel + 9))) == 0) ? tmp * 4 : (tmp + 1) * 4; + } + + return (msel & 0x3c) + 4; +} + +/* Compute PLL0 bandwidth SELP reg from multiplier */ +static u32 lpc18xx_pll0_msel2selp(u32 msel) +{ + if (msel < 60) + return (msel >> 1) + 1; + + return 31; +} + +static unsigned long lpc18xx_pll0_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct lpc18xx_pll *pll = to_lpc_pll(hw); + u32 ctrl, mdiv, msel, npdiv; + + ctrl = clk_readl(pll->reg + LPC18XX_CGU_PLL0USB_CTRL); + mdiv = clk_readl(pll->reg + LPC18XX_CGU_PLL0USB_MDIV); + npdiv = clk_readl(pll->reg + LPC18XX_CGU_PLL0USB_NP_DIV); + + if (ctrl & LPC18XX_PLL0_CTRL_BYPASS) + return parent_rate; + + if (npdiv != LPC18XX_PLL0_NP_DIVS_1) { + pr_warn("%s: pre/post dividers not supported\n", __func__); + return 0; + } + + msel = lpc18xx_pll0_mdec2msel(mdiv & LPC18XX_PLL0_MDIV_MDEC_MASK); + if (msel) + return 2 * msel * parent_rate; + + pr_warn("%s: unable to calculate rate\n", __func__); + + return 0; +} + +static long lpc18xx_pll0_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + unsigned long m; + + if (*prate < rate) { + pr_warn("%s: pll dividers not supported\n", __func__); + return -EINVAL; + } + + m = DIV_ROUND_UP_ULL(*prate, rate * 2); + if (m <= 0 && m > LPC18XX_PLL0_MSEL_MAX) { + pr_warn("%s: unable to support rate %lu\n", __func__, rate); + return -EINVAL; + } + + return 2 * *prate * m; +} + +static int lpc18xx_pll0_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct lpc18xx_pll *pll = to_lpc_pll(hw); + u32 ctrl, stat, m; + int retry = 3; + + if (parent_rate < rate) { + pr_warn("%s: pll dividers not supported\n", __func__); + return -EINVAL; + } + + m = DIV_ROUND_UP_ULL(parent_rate, rate * 2); + if (m <= 0 && m > LPC18XX_PLL0_MSEL_MAX) { + pr_warn("%s: unable to support rate %lu\n", __func__, rate); + return -EINVAL; + } + + m = lpc18xx_pll0_msel2mdec(m); + m |= lpc18xx_pll0_msel2selp(m) << LPC18XX_PLL0_MDIV_SELP_SHIFT; + m |= lpc18xx_pll0_msel2seli(m) << LPC18XX_PLL0_MDIV_SELI_SHIFT; + + /* Power down PLL, disable clk output and dividers */ + ctrl = clk_readl(pll->reg + LPC18XX_CGU_PLL0USB_CTRL); + ctrl |= LPC18XX_PLL0_CTRL_PD; + ctrl &= ~(LPC18XX_PLL0_CTRL_BYPASS | LPC18XX_PLL0_CTRL_DIRECTI | + LPC18XX_PLL0_CTRL_DIRECTO | LPC18XX_PLL0_CTRL_CLKEN); + clk_writel(ctrl, pll->reg + LPC18XX_CGU_PLL0USB_CTRL); + + /* Configure new PLL settings */ + clk_writel(m, pll->reg + LPC18XX_CGU_PLL0USB_MDIV); + clk_writel(LPC18XX_PLL0_NP_DIVS_1, pll->reg + LPC18XX_CGU_PLL0USB_NP_DIV); + + /* Power up PLL and wait for lock */ + ctrl &= ~LPC18XX_PLL0_CTRL_PD; + clk_writel(ctrl, pll->reg + LPC18XX_CGU_PLL0USB_CTRL); + do { + udelay(10); + stat = clk_readl(pll->reg + LPC18XX_CGU_PLL0USB_STAT); + if (stat & LPC18XX_PLL0_STAT_LOCK) { + ctrl |= LPC18XX_PLL0_CTRL_CLKEN; + clk_writel(ctrl, pll->reg + LPC18XX_CGU_PLL0USB_CTRL); + + return 0; + } + } while (retry--); + + pr_warn("%s: unable to lock pll\n", __func__); + + return -EINVAL; +} + +static const struct clk_ops lpc18xx_pll0_ops = { + .recalc_rate = lpc18xx_pll0_recalc_rate, + .round_rate = lpc18xx_pll0_round_rate, + .set_rate = lpc18xx_pll0_set_rate, +}; + +static unsigned long lpc18xx_pll1_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct lpc18xx_pll *pll = to_lpc_pll(hw); + u16 msel, nsel, psel; + bool direct, fbsel; + u32 stat, ctrl; + + stat = clk_readl(pll->reg + LPC18XX_CGU_PLL1_STAT); + ctrl = clk_readl(pll->reg + LPC18XX_CGU_PLL1_CTRL); + + direct = (ctrl & LPC18XX_PLL1_CTRL_DIRECT) ? true : false; + fbsel = (ctrl & LPC18XX_PLL1_CTRL_FBSEL) ? true : false; + + msel = ((ctrl >> 16) & 0xff) + 1; + nsel = ((ctrl >> 12) & 0x3) + 1; + + if (direct || fbsel) + return msel * (parent_rate / nsel); + + psel = (ctrl >> 8) & 0x3; + psel = 1 << psel; + + return (msel / (2 * psel)) * (parent_rate / nsel); +} + +static const struct clk_ops lpc18xx_pll1_ops = { + .recalc_rate = lpc18xx_pll1_recalc_rate, +}; + +static struct lpc18xx_cgu_pll_clk lpc18xx_cgu_src_clk_plls[] = { + LPC1XX_CGU_CLK_PLL(PLL0USB, pll0_src_ids, pll0_ops), + LPC1XX_CGU_CLK_PLL(PLL0AUDIO, pll0_src_ids, pll0_ops), + LPC1XX_CGU_CLK_PLL(PLL1, pll1_src_ids, pll1_ops), +}; + +static void lpc18xx_fill_parent_names(const char **parent, u32 *id, int size) +{ + int i; + + for (i = 0; i < size; i++) + parent[i] = clk_src_names[id[i]]; +} + +static struct clk *lpc18xx_cgu_register_div(struct lpc18xx_cgu_src_clk_div *clk, + void __iomem *base, int n) +{ + void __iomem *reg = base + LPC18XX_CGU_IDIV_CTRL(n); + const char *name = clk_src_names[clk->clk_id]; + const char *parents[CLK_SRC_MAX]; + + clk->div.reg = reg; + clk->mux.reg = reg; + clk->gate.reg = reg; + + lpc18xx_fill_parent_names(parents, clk->mux.table, clk->n_parents); + + return clk_register_composite(NULL, name, parents, clk->n_parents, + &clk->mux.hw, &clk_mux_ops, + &clk->div.hw, &clk_divider_ops, + &clk->gate.hw, &clk_gate_ops, 0); +} + + +static struct clk *lpc18xx_register_base_clk(struct lpc18xx_cgu_base_clk *clk, + void __iomem *reg_base, int n) +{ + void __iomem *reg = reg_base + LPC18XX_CGU_BASE_CLK(n); + const char *name = clk_base_names[clk->clk_id]; + const char *parents[CLK_SRC_MAX]; + + if (clk->n_parents == 0) + return ERR_PTR(-ENOENT); + + clk->mux.reg = reg; + clk->gate.reg = reg; + + lpc18xx_fill_parent_names(parents, clk->mux.table, clk->n_parents); + + /* SAFE_CLK can not be turned off */ + if (n == BASE_SAFE_CLK) + return clk_register_composite(NULL, name, parents, clk->n_parents, + &clk->mux.hw, &clk_mux_ops, + NULL, NULL, NULL, NULL, 0); + + return clk_register_composite(NULL, name, parents, clk->n_parents, + &clk->mux.hw, &clk_mux_ops, + NULL, NULL, + &clk->gate.hw, &clk_gate_ops, 0); +} + + +static struct clk *lpc18xx_cgu_register_pll(struct lpc18xx_cgu_pll_clk *clk, + void __iomem *base) +{ + const char *name = clk_src_names[clk->clk_id]; + const char *parents[CLK_SRC_MAX]; + + clk->pll.reg = base; + clk->mux.reg = base + clk->reg_offset + LPC18XX_CGU_PLL_CTRL_OFFSET; + clk->gate.reg = base + clk->reg_offset + LPC18XX_CGU_PLL_CTRL_OFFSET; + + lpc18xx_fill_parent_names(parents, clk->mux.table, clk->n_parents); + + return clk_register_composite(NULL, name, parents, clk->n_parents, + &clk->mux.hw, &clk_mux_ops, + &clk->pll.hw, clk->pll_ops, + &clk->gate.hw, &clk_gate_ops, 0); +} + +static void __init lpc18xx_cgu_register_source_clks(struct device_node *np, + void __iomem *base) +{ + const char *parents[CLK_SRC_MAX]; + struct clk *clk; + int i; + + /* Register the internal 12 MHz RC oscillator (IRC) */ + clk = clk_register_fixed_rate(NULL, clk_src_names[CLK_SRC_IRC], + NULL, CLK_IS_ROOT, 12000000); + if (IS_ERR(clk)) + pr_warn("%s: failed to register irc clk\n", __func__); + + /* Register crystal oscillator controlller */ + parents[0] = of_clk_get_parent_name(np, 0); + clk = clk_register_gate(NULL, clk_src_names[CLK_SRC_OSC], parents[0], + 0, base + LPC18XX_CGU_XTAL_OSC_CTRL, + 0, CLK_GATE_SET_TO_DISABLE, NULL); + if (IS_ERR(clk)) + pr_warn("%s: failed to register osc clk\n", __func__); + + /* Register all PLLs */ + for (i = 0; i < ARRAY_SIZE(lpc18xx_cgu_src_clk_plls); i++) { + clk = lpc18xx_cgu_register_pll(&lpc18xx_cgu_src_clk_plls[i], + base); + if (IS_ERR(clk)) + pr_warn("%s: failed to register pll (%d)\n", __func__, i); + } + + /* Register all clock dividers A-E */ + for (i = 0; i < ARRAY_SIZE(lpc18xx_cgu_src_clk_divs); i++) { + clk = lpc18xx_cgu_register_div(&lpc18xx_cgu_src_clk_divs[i], + base, i); + if (IS_ERR(clk)) + pr_warn("%s: failed to register div %d\n", __func__, i); + } +} + +static struct clk *clk_base[BASE_CLK_MAX]; +static struct clk_onecell_data clk_base_data = { + .clks = clk_base, + .clk_num = BASE_CLK_MAX, +}; + +static void __init lpc18xx_cgu_register_base_clks(void __iomem *reg_base) +{ + int i; + + for (i = BASE_SAFE_CLK; i < BASE_CLK_MAX; i++) { + clk_base[i] = lpc18xx_register_base_clk(&lpc18xx_cgu_base_clks[i], + reg_base, i); + if (IS_ERR(clk_base[i]) && PTR_ERR(clk_base[i]) != -ENOENT) + pr_warn("%s: register base clk %d failed\n", __func__, i); + } +} + +static void __init lpc18xx_cgu_init(struct device_node *np) +{ + void __iomem *reg_base; + + reg_base = of_iomap(np, 0); + if (!reg_base) { + pr_warn("%s: failed to map address range\n", __func__); + return; + } + + lpc18xx_cgu_register_source_clks(np, reg_base); + lpc18xx_cgu_register_base_clks(reg_base); + + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_base_data); +} +CLK_OF_DECLARE(lpc18xx_cgu, "nxp,lpc1850-cgu", lpc18xx_cgu_init); diff --git a/drivers/clk/pistachio/clk-pll.c b/drivers/clk/pistachio/clk-pll.c index de537560bf70..e17dada0dd21 100644 --- a/drivers/clk/pistachio/clk-pll.c +++ b/drivers/clk/pistachio/clk-pll.c @@ -6,9 +6,12 @@ * version 2, as published by the Free Software Foundation. */ +#define pr_fmt(fmt) "%s: " fmt, __func__ + #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/kernel.h> +#include <linux/printk.h> #include <linux/slab.h> #include "clk.h" @@ -50,6 +53,18 @@ #define PLL_CTRL4 0x10 #define PLL_FRAC_CTRL4_BYPASS BIT(28) +#define MIN_PFD 9600000UL +#define MIN_VCO_LA 400000000UL +#define MAX_VCO_LA 1600000000UL +#define MIN_VCO_FRAC_INT 600000000UL +#define MAX_VCO_FRAC_INT 1600000000UL +#define MIN_VCO_FRAC_FRAC 600000000UL +#define MAX_VCO_FRAC_FRAC 2400000000UL +#define MIN_OUTPUT_LA 8000000UL +#define MAX_OUTPUT_LA 1600000000UL +#define MIN_OUTPUT_FRAC 12000000UL +#define MAX_OUTPUT_FRAC 1600000000UL + struct pistachio_clk_pll { struct clk_hw hw; void __iomem *base; @@ -67,6 +82,12 @@ static inline void pll_writel(struct pistachio_clk_pll *pll, u32 val, u32 reg) writel(val, pll->base + reg); } +static inline void pll_lock(struct pistachio_clk_pll *pll) +{ + while (!(pll_readl(pll, PLL_STATUS) & PLL_STATUS_LOCK)) + cpu_relax(); +} + static inline u32 do_div_round_closest(u64 dividend, u32 divisor) { dividend += divisor / 2; @@ -124,6 +145,8 @@ static int pll_gf40lp_frac_enable(struct clk_hw *hw) val &= ~PLL_FRAC_CTRL4_BYPASS; pll_writel(pll, val, PLL_CTRL4); + pll_lock(pll); + return 0; } @@ -149,16 +172,29 @@ static int pll_gf40lp_frac_set_rate(struct clk_hw *hw, unsigned long rate, { struct pistachio_clk_pll *pll = to_pistachio_pll(hw); struct pistachio_pll_rate_table *params; - bool was_enabled; - u32 val; + int enabled = pll_gf40lp_frac_is_enabled(hw); + u32 val, vco, old_postdiv1, old_postdiv2; + const char *name = __clk_get_name(hw->clk); + + if (rate < MIN_OUTPUT_FRAC || rate > MAX_OUTPUT_FRAC) + return -EINVAL; params = pll_get_params(pll, parent_rate, rate); - if (!params) + if (!params || !params->refdiv) return -EINVAL; - was_enabled = pll_gf40lp_frac_is_enabled(hw); - if (!was_enabled) - pll_gf40lp_frac_enable(hw); + vco = params->fref * params->fbdiv / params->refdiv; + if (vco < MIN_VCO_FRAC_FRAC || vco > MAX_VCO_FRAC_FRAC) + pr_warn("%s: VCO %u is out of range %lu..%lu\n", name, vco, + MIN_VCO_FRAC_FRAC, MAX_VCO_FRAC_FRAC); + + val = params->fref / params->refdiv; + if (val < MIN_PFD) + pr_warn("%s: PFD %u is too low (min %lu)\n", + name, val, MIN_PFD); + if (val > vco / 16) + pr_warn("%s: PFD %u is too high (max %u)\n", + name, val, vco / 16); val = pll_readl(pll, PLL_CTRL1); val &= ~((PLL_CTRL1_REFDIV_MASK << PLL_CTRL1_REFDIV_SHIFT) | @@ -168,6 +204,19 @@ static int pll_gf40lp_frac_set_rate(struct clk_hw *hw, unsigned long rate, pll_writel(pll, val, PLL_CTRL1); val = pll_readl(pll, PLL_CTRL2); + + old_postdiv1 = (val >> PLL_FRAC_CTRL2_POSTDIV1_SHIFT) & + PLL_FRAC_CTRL2_POSTDIV1_MASK; + old_postdiv2 = (val >> PLL_FRAC_CTRL2_POSTDIV2_SHIFT) & + PLL_FRAC_CTRL2_POSTDIV2_MASK; + if (enabled && + (params->postdiv1 != old_postdiv1 || + params->postdiv2 != old_postdiv2)) + pr_warn("%s: changing postdiv while PLL is enabled\n", name); + + if (params->postdiv2 > params->postdiv1) + pr_warn("%s: postdiv2 should not exceed postdiv1\n", name); + val &= ~((PLL_FRAC_CTRL2_FRAC_MASK << PLL_FRAC_CTRL2_FRAC_SHIFT) | (PLL_FRAC_CTRL2_POSTDIV1_MASK << PLL_FRAC_CTRL2_POSTDIV1_SHIFT) | @@ -178,11 +227,8 @@ static int pll_gf40lp_frac_set_rate(struct clk_hw *hw, unsigned long rate, (params->postdiv2 << PLL_FRAC_CTRL2_POSTDIV2_SHIFT); pll_writel(pll, val, PLL_CTRL2); - while (!(pll_readl(pll, PLL_STATUS) & PLL_STATUS_LOCK)) - cpu_relax(); - - if (!was_enabled) - pll_gf40lp_frac_disable(hw); + if (enabled) + pll_lock(pll); return 0; } @@ -241,6 +287,8 @@ static int pll_gf40lp_laint_enable(struct clk_hw *hw) val &= ~PLL_INT_CTRL2_BYPASS; pll_writel(pll, val, PLL_CTRL2); + pll_lock(pll); + return 0; } @@ -266,18 +314,44 @@ static int pll_gf40lp_laint_set_rate(struct clk_hw *hw, unsigned long rate, { struct pistachio_clk_pll *pll = to_pistachio_pll(hw); struct pistachio_pll_rate_table *params; - bool was_enabled; - u32 val; + int enabled = pll_gf40lp_laint_is_enabled(hw); + u32 val, vco, old_postdiv1, old_postdiv2; + const char *name = __clk_get_name(hw->clk); + + if (rate < MIN_OUTPUT_LA || rate > MAX_OUTPUT_LA) + return -EINVAL; params = pll_get_params(pll, parent_rate, rate); - if (!params) + if (!params || !params->refdiv) return -EINVAL; - was_enabled = pll_gf40lp_laint_is_enabled(hw); - if (!was_enabled) - pll_gf40lp_laint_enable(hw); + vco = params->fref * params->fbdiv / params->refdiv; + if (vco < MIN_VCO_LA || vco > MAX_VCO_LA) + pr_warn("%s: VCO %u is out of range %lu..%lu\n", name, vco, + MIN_VCO_LA, MAX_VCO_LA); + + val = params->fref / params->refdiv; + if (val < MIN_PFD) + pr_warn("%s: PFD %u is too low (min %lu)\n", + name, val, MIN_PFD); + if (val > vco / 16) + pr_warn("%s: PFD %u is too high (max %u)\n", + name, val, vco / 16); val = pll_readl(pll, PLL_CTRL1); + + old_postdiv1 = (val >> PLL_INT_CTRL1_POSTDIV1_SHIFT) & + PLL_INT_CTRL1_POSTDIV1_MASK; + old_postdiv2 = (val >> PLL_INT_CTRL1_POSTDIV2_SHIFT) & + PLL_INT_CTRL1_POSTDIV2_MASK; + if (enabled && + (params->postdiv1 != old_postdiv1 || + params->postdiv2 != old_postdiv2)) + pr_warn("%s: changing postdiv while PLL is enabled\n", name); + + if (params->postdiv2 > params->postdiv1) + pr_warn("%s: postdiv2 should not exceed postdiv1\n", name); + val &= ~((PLL_CTRL1_REFDIV_MASK << PLL_CTRL1_REFDIV_SHIFT) | (PLL_CTRL1_FBDIV_MASK << PLL_CTRL1_FBDIV_SHIFT) | (PLL_INT_CTRL1_POSTDIV1_MASK << PLL_INT_CTRL1_POSTDIV1_SHIFT) | @@ -288,11 +362,8 @@ static int pll_gf40lp_laint_set_rate(struct clk_hw *hw, unsigned long rate, (params->postdiv2 << PLL_INT_CTRL1_POSTDIV2_SHIFT); pll_writel(pll, val, PLL_CTRL1); - while (!(pll_readl(pll, PLL_STATUS) & PLL_STATUS_LOCK)) - cpu_relax(); - - if (!was_enabled) - pll_gf40lp_laint_disable(hw); + if (enabled) + pll_lock(pll); return 0; } diff --git a/drivers/clk/pxa/clk-pxa.h b/drivers/clk/pxa/clk-pxa.h index b04c5b9c0ea8..d1de805df867 100644 --- a/drivers/clk/pxa/clk-pxa.h +++ b/drivers/clk/pxa/clk-pxa.h @@ -14,7 +14,7 @@ #define _CLK_PXA_ #define PARENTS(name) \ - static const char *name ## _parents[] __initdata + static const char *const name ## _parents[] __initconst #define MUX_RO_RATE_RO_OPS(name, clk_name) \ static struct clk_hw name ## _mux_hw; \ static struct clk_hw name ## _rate_hw; \ @@ -72,7 +72,7 @@ struct desc_clk_cken { const char *name; const char *dev_id; const char *con_id; - const char **parent_names; + const char * const *parent_names; struct clk_fixed_factor lp; struct clk_fixed_factor hp; struct clk_gate gate; diff --git a/drivers/clk/pxa/clk-pxa27x.c b/drivers/clk/pxa/clk-pxa27x.c index 5f9b54b024b9..9a31b77eed23 100644 --- a/drivers/clk/pxa/clk-pxa27x.c +++ b/drivers/clk/pxa/clk-pxa27x.c @@ -353,6 +353,34 @@ static u8 clk_pxa27x_memory_get_parent(struct clk_hw *hw) PARENTS(clk_pxa27x_memory) = { "osc_13mhz", "system_bus", "run" }; MUX_RO_RATE_RO_OPS(clk_pxa27x_memory, "memory"); +#define DUMMY_CLK(_con_id, _dev_id, _parent) \ + { .con_id = _con_id, .dev_id = _dev_id, .parent = _parent } +struct dummy_clk { + const char *con_id; + const char *dev_id; + const char *parent; +}; +static struct dummy_clk dummy_clks[] __initdata = { + DUMMY_CLK(NULL, "pxa27x-gpio", "osc_32_768khz"), + DUMMY_CLK(NULL, "sa1100-rtc", "osc_32_768khz"), + DUMMY_CLK("UARTCLK", "pxa2xx-ir", "STUART"), +}; + +static void __init pxa27x_dummy_clocks_init(void) +{ + struct clk *clk; + struct dummy_clk *d; + const char *name; + int i; + + for (i = 0; i < ARRAY_SIZE(dummy_clks); i++) { + d = &dummy_clks[i]; + name = d->dev_id ? d->dev_id : d->con_id; + clk = clk_register_fixed_factor(NULL, name, d->parent, 0, 1, 1); + clk_register_clkdev(clk, d->con_id, d->dev_id); + } +} + static void __init pxa27x_base_clocks_init(void) { pxa27x_register_plls(); @@ -362,12 +390,12 @@ static void __init pxa27x_base_clocks_init(void) clk_register_clk_pxa27x_lcd_base(); } -static int __init pxa27x_clocks_init(void) +int __init pxa27x_clocks_init(void) { pxa27x_base_clocks_init(); + pxa27x_dummy_clocks_init(); return clk_pxa_cken_init(pxa27x_clocks, ARRAY_SIZE(pxa27x_clocks)); } -postcore_initcall(pxa27x_clocks_init); static void __init pxa27x_dt_clocks_init(struct device_node *np) { diff --git a/drivers/clk/qcom/gcc-ipq806x.c b/drivers/clk/qcom/gcc-ipq806x.c index a50936a17376..563969942a1d 100644 --- a/drivers/clk/qcom/gcc-ipq806x.c +++ b/drivers/clk/qcom/gcc-ipq806x.c @@ -140,12 +140,47 @@ static struct clk_regmap pll14_vote = { }, }; +#define NSS_PLL_RATE(f, _l, _m, _n, i) \ + { \ + .freq = f, \ + .l = _l, \ + .m = _m, \ + .n = _n, \ + .ibits = i, \ + } + +static struct pll_freq_tbl pll18_freq_tbl[] = { + NSS_PLL_RATE(550000000, 44, 0, 1, 0x01495625), + NSS_PLL_RATE(733000000, 58, 16, 25, 0x014b5625), +}; + +static struct clk_pll pll18 = { + .l_reg = 0x31a4, + .m_reg = 0x31a8, + .n_reg = 0x31ac, + .config_reg = 0x31b4, + .mode_reg = 0x31a0, + .status_reg = 0x31b8, + .status_bit = 16, + .post_div_shift = 16, + .post_div_width = 1, + .freq_tbl = pll18_freq_tbl, + .clkr.hw.init = &(struct clk_init_data){ + .name = "pll18", + .parent_names = (const char *[]){ "pxo" }, + .num_parents = 1, + .ops = &clk_pll_ops, + }, +}; + enum { P_PXO, P_PLL8, P_PLL3, P_PLL0, P_CXO, + P_PLL14, + P_PLL18, }; static const struct parent_map gcc_pxo_pll8_map[] = { @@ -197,6 +232,22 @@ static const char *gcc_pxo_pll8_pll0_map[] = { "pll0_vote", }; +static const struct parent_map gcc_pxo_pll8_pll14_pll18_pll0_map[] = { + { P_PXO, 0 }, + { P_PLL8, 4 }, + { P_PLL0, 2 }, + { P_PLL14, 5 }, + { P_PLL18, 1 } +}; + +static const char *gcc_pxo_pll8_pll14_pll18_pll0[] = { + "pxo", + "pll8_vote", + "pll0_vote", + "pll14", + "pll18", +}; + static struct freq_tbl clk_tbl_gsbi_uart[] = { { 1843200, P_PLL8, 2, 6, 625 }, { 3686400, P_PLL8, 2, 12, 625 }, @@ -2202,6 +2253,472 @@ static struct clk_branch ebi2_aon_clk = { }, }; +static const struct freq_tbl clk_tbl_gmac[] = { + { 133000000, P_PLL0, 1, 50, 301 }, + { 266000000, P_PLL0, 1, 127, 382 }, + { } +}; + +static struct clk_dyn_rcg gmac_core1_src = { + .ns_reg[0] = 0x3cac, + .ns_reg[1] = 0x3cb0, + .md_reg[0] = 0x3ca4, + .md_reg[1] = 0x3ca8, + .bank_reg = 0x3ca0, + .mn[0] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .mn[1] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .s[0] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .s[1] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .p[0] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .p[1] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .mux_sel_bit = 0, + .freq_tbl = clk_tbl_gmac, + .clkr = { + .enable_reg = 0x3ca0, + .enable_mask = BIT(1), + .hw.init = &(struct clk_init_data){ + .name = "gmac_core1_src", + .parent_names = gcc_pxo_pll8_pll14_pll18_pll0, + .num_parents = 5, + .ops = &clk_dyn_rcg_ops, + }, + }, +}; + +static struct clk_branch gmac_core1_clk = { + .halt_reg = 0x3c20, + .halt_bit = 4, + .hwcg_reg = 0x3cb4, + .hwcg_bit = 6, + .clkr = { + .enable_reg = 0x3cb4, + .enable_mask = BIT(4), + .hw.init = &(struct clk_init_data){ + .name = "gmac_core1_clk", + .parent_names = (const char *[]){ + "gmac_core1_src", + }, + .num_parents = 1, + .ops = &clk_branch_ops, + .flags = CLK_SET_RATE_PARENT, + }, + }, +}; + +static struct clk_dyn_rcg gmac_core2_src = { + .ns_reg[0] = 0x3ccc, + .ns_reg[1] = 0x3cd0, + .md_reg[0] = 0x3cc4, + .md_reg[1] = 0x3cc8, + .bank_reg = 0x3ca0, + .mn[0] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .mn[1] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .s[0] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .s[1] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .p[0] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .p[1] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .mux_sel_bit = 0, + .freq_tbl = clk_tbl_gmac, + .clkr = { + .enable_reg = 0x3cc0, + .enable_mask = BIT(1), + .hw.init = &(struct clk_init_data){ + .name = "gmac_core2_src", + .parent_names = gcc_pxo_pll8_pll14_pll18_pll0, + .num_parents = 5, + .ops = &clk_dyn_rcg_ops, + }, + }, +}; + +static struct clk_branch gmac_core2_clk = { + .halt_reg = 0x3c20, + .halt_bit = 5, + .hwcg_reg = 0x3cd4, + .hwcg_bit = 6, + .clkr = { + .enable_reg = 0x3cd4, + .enable_mask = BIT(4), + .hw.init = &(struct clk_init_data){ + .name = "gmac_core2_clk", + .parent_names = (const char *[]){ + "gmac_core2_src", + }, + .num_parents = 1, + .ops = &clk_branch_ops, + .flags = CLK_SET_RATE_PARENT, + }, + }, +}; + +static struct clk_dyn_rcg gmac_core3_src = { + .ns_reg[0] = 0x3cec, + .ns_reg[1] = 0x3cf0, + .md_reg[0] = 0x3ce4, + .md_reg[1] = 0x3ce8, + .bank_reg = 0x3ce0, + .mn[0] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .mn[1] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .s[0] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .s[1] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .p[0] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .p[1] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .mux_sel_bit = 0, + .freq_tbl = clk_tbl_gmac, + .clkr = { + .enable_reg = 0x3ce0, + .enable_mask = BIT(1), + .hw.init = &(struct clk_init_data){ + .name = "gmac_core3_src", + .parent_names = gcc_pxo_pll8_pll14_pll18_pll0, + .num_parents = 5, + .ops = &clk_dyn_rcg_ops, + }, + }, +}; + +static struct clk_branch gmac_core3_clk = { + .halt_reg = 0x3c20, + .halt_bit = 6, + .hwcg_reg = 0x3cf4, + .hwcg_bit = 6, + .clkr = { + .enable_reg = 0x3cf4, + .enable_mask = BIT(4), + .hw.init = &(struct clk_init_data){ + .name = "gmac_core3_clk", + .parent_names = (const char *[]){ + "gmac_core3_src", + }, + .num_parents = 1, + .ops = &clk_branch_ops, + .flags = CLK_SET_RATE_PARENT, + }, + }, +}; + +static struct clk_dyn_rcg gmac_core4_src = { + .ns_reg[0] = 0x3d0c, + .ns_reg[1] = 0x3d10, + .md_reg[0] = 0x3d04, + .md_reg[1] = 0x3d08, + .bank_reg = 0x3d00, + .mn[0] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .mn[1] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .s[0] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .s[1] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .p[0] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .p[1] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .mux_sel_bit = 0, + .freq_tbl = clk_tbl_gmac, + .clkr = { + .enable_reg = 0x3d00, + .enable_mask = BIT(1), + .hw.init = &(struct clk_init_data){ + .name = "gmac_core4_src", + .parent_names = gcc_pxo_pll8_pll14_pll18_pll0, + .num_parents = 5, + .ops = &clk_dyn_rcg_ops, + }, + }, +}; + +static struct clk_branch gmac_core4_clk = { + .halt_reg = 0x3c20, + .halt_bit = 7, + .hwcg_reg = 0x3d14, + .hwcg_bit = 6, + .clkr = { + .enable_reg = 0x3d14, + .enable_mask = BIT(4), + .hw.init = &(struct clk_init_data){ + .name = "gmac_core4_clk", + .parent_names = (const char *[]){ + "gmac_core4_src", + }, + .num_parents = 1, + .ops = &clk_branch_ops, + .flags = CLK_SET_RATE_PARENT, + }, + }, +}; + +static const struct freq_tbl clk_tbl_nss_tcm[] = { + { 266000000, P_PLL0, 3, 0, 0 }, + { 400000000, P_PLL0, 2, 0, 0 }, + { } +}; + +static struct clk_dyn_rcg nss_tcm_src = { + .ns_reg[0] = 0x3dc4, + .ns_reg[1] = 0x3dc8, + .bank_reg = 0x3dc0, + .s[0] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .s[1] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .p[0] = { + .pre_div_shift = 3, + .pre_div_width = 4, + }, + .p[1] = { + .pre_div_shift = 3, + .pre_div_width = 4, + }, + .mux_sel_bit = 0, + .freq_tbl = clk_tbl_nss_tcm, + .clkr = { + .enable_reg = 0x3dc0, + .enable_mask = BIT(1), + .hw.init = &(struct clk_init_data){ + .name = "nss_tcm_src", + .parent_names = gcc_pxo_pll8_pll14_pll18_pll0, + .num_parents = 5, + .ops = &clk_dyn_rcg_ops, + }, + }, +}; + +static struct clk_branch nss_tcm_clk = { + .halt_reg = 0x3c20, + .halt_bit = 14, + .clkr = { + .enable_reg = 0x3dd0, + .enable_mask = BIT(6) | BIT(4), + .hw.init = &(struct clk_init_data){ + .name = "nss_tcm_clk", + .parent_names = (const char *[]){ + "nss_tcm_src", + }, + .num_parents = 1, + .ops = &clk_branch_ops, + .flags = CLK_SET_RATE_PARENT, + }, + }, +}; + +static const struct freq_tbl clk_tbl_nss[] = { + { 110000000, P_PLL18, 1, 1, 5 }, + { 275000000, P_PLL18, 2, 0, 0 }, + { 550000000, P_PLL18, 1, 0, 0 }, + { 733000000, P_PLL18, 1, 0, 0 }, + { } +}; + +static struct clk_dyn_rcg ubi32_core1_src_clk = { + .ns_reg[0] = 0x3d2c, + .ns_reg[1] = 0x3d30, + .md_reg[0] = 0x3d24, + .md_reg[1] = 0x3d28, + .bank_reg = 0x3d20, + .mn[0] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .mn[1] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .s[0] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .s[1] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .p[0] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .p[1] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .mux_sel_bit = 0, + .freq_tbl = clk_tbl_nss, + .clkr = { + .enable_reg = 0x3d20, + .enable_mask = BIT(1), + .hw.init = &(struct clk_init_data){ + .name = "ubi32_core1_src_clk", + .parent_names = gcc_pxo_pll8_pll14_pll18_pll0, + .num_parents = 5, + .ops = &clk_dyn_rcg_ops, + .flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE, + }, + }, +}; + +static struct clk_dyn_rcg ubi32_core2_src_clk = { + .ns_reg[0] = 0x3d4c, + .ns_reg[1] = 0x3d50, + .md_reg[0] = 0x3d44, + .md_reg[1] = 0x3d48, + .bank_reg = 0x3d40, + .mn[0] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .mn[1] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 7, + .mnctr_mode_shift = 5, + .n_val_shift = 16, + .m_val_shift = 16, + .width = 8, + }, + .s[0] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .s[1] = { + .src_sel_shift = 0, + .parent_map = gcc_pxo_pll8_pll14_pll18_pll0_map, + }, + .p[0] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .p[1] = { + .pre_div_shift = 3, + .pre_div_width = 2, + }, + .mux_sel_bit = 0, + .freq_tbl = clk_tbl_nss, + .clkr = { + .enable_reg = 0x3d40, + .enable_mask = BIT(1), + .hw.init = &(struct clk_init_data){ + .name = "ubi32_core2_src_clk", + .parent_names = gcc_pxo_pll8_pll14_pll18_pll0, + .num_parents = 5, + .ops = &clk_dyn_rcg_ops, + .flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE, + }, + }, +}; + static struct clk_regmap *gcc_ipq806x_clks[] = { [PLL0] = &pll0.clkr, [PLL0_VOTE] = &pll0_vote, @@ -2211,6 +2728,7 @@ static struct clk_regmap *gcc_ipq806x_clks[] = { [PLL8_VOTE] = &pll8_vote, [PLL14] = &pll14.clkr, [PLL14_VOTE] = &pll14_vote, + [PLL18] = &pll18.clkr, [GSBI1_UART_SRC] = &gsbi1_uart_src.clkr, [GSBI1_UART_CLK] = &gsbi1_uart_clk.clkr, [GSBI2_UART_SRC] = &gsbi2_uart_src.clkr, @@ -2307,6 +2825,18 @@ static struct clk_regmap *gcc_ipq806x_clks[] = { [USB_FS1_SYSTEM_CLK] = &usb_fs1_sys_clk.clkr, [EBI2_CLK] = &ebi2_clk.clkr, [EBI2_AON_CLK] = &ebi2_aon_clk.clkr, + [GMAC_CORE1_CLK_SRC] = &gmac_core1_src.clkr, + [GMAC_CORE1_CLK] = &gmac_core1_clk.clkr, + [GMAC_CORE2_CLK_SRC] = &gmac_core2_src.clkr, + [GMAC_CORE2_CLK] = &gmac_core2_clk.clkr, + [GMAC_CORE3_CLK_SRC] = &gmac_core3_src.clkr, + [GMAC_CORE3_CLK] = &gmac_core3_clk.clkr, + [GMAC_CORE4_CLK_SRC] = &gmac_core4_src.clkr, + [GMAC_CORE4_CLK] = &gmac_core4_clk.clkr, + [UBI32_CORE1_CLK_SRC] = &ubi32_core1_src_clk.clkr, + [UBI32_CORE2_CLK_SRC] = &ubi32_core2_src_clk.clkr, + [NSSTCM_CLK_SRC] = &nss_tcm_src.clkr, + [NSSTCM_CLK] = &nss_tcm_clk.clkr, }; static const struct qcom_reset_map gcc_ipq806x_resets[] = { @@ -2425,6 +2955,48 @@ static const struct qcom_reset_map gcc_ipq806x_resets[] = { [USB30_1_PHY_RESET] = { 0x3b58, 0 }, [NSSFB0_RESET] = { 0x3b60, 6 }, [NSSFB1_RESET] = { 0x3b60, 7 }, + [UBI32_CORE1_CLKRST_CLAMP_RESET] = { 0x3d3c, 3}, + [UBI32_CORE1_CLAMP_RESET] = { 0x3d3c, 2 }, + [UBI32_CORE1_AHB_RESET] = { 0x3d3c, 1 }, + [UBI32_CORE1_AXI_RESET] = { 0x3d3c, 0 }, + [UBI32_CORE2_CLKRST_CLAMP_RESET] = { 0x3d5c, 3 }, + [UBI32_CORE2_CLAMP_RESET] = { 0x3d5c, 2 }, + [UBI32_CORE2_AHB_RESET] = { 0x3d5c, 1 }, + [UBI32_CORE2_AXI_RESET] = { 0x3d5c, 0 }, + [GMAC_CORE1_RESET] = { 0x3cbc, 0 }, + [GMAC_CORE2_RESET] = { 0x3cdc, 0 }, + [GMAC_CORE3_RESET] = { 0x3cfc, 0 }, + [GMAC_CORE4_RESET] = { 0x3d1c, 0 }, + [GMAC_AHB_RESET] = { 0x3e24, 0 }, + [NSS_CH0_RST_RX_CLK_N_RESET] = { 0x3b60, 0 }, + [NSS_CH0_RST_TX_CLK_N_RESET] = { 0x3b60, 1 }, + [NSS_CH0_RST_RX_125M_N_RESET] = { 0x3b60, 2 }, + [NSS_CH0_HW_RST_RX_125M_N_RESET] = { 0x3b60, 3 }, + [NSS_CH0_RST_TX_125M_N_RESET] = { 0x3b60, 4 }, + [NSS_CH1_RST_RX_CLK_N_RESET] = { 0x3b60, 5 }, + [NSS_CH1_RST_TX_CLK_N_RESET] = { 0x3b60, 6 }, + [NSS_CH1_RST_RX_125M_N_RESET] = { 0x3b60, 7 }, + [NSS_CH1_HW_RST_RX_125M_N_RESET] = { 0x3b60, 8 }, + [NSS_CH1_RST_TX_125M_N_RESET] = { 0x3b60, 9 }, + [NSS_CH2_RST_RX_CLK_N_RESET] = { 0x3b60, 10 }, + [NSS_CH2_RST_TX_CLK_N_RESET] = { 0x3b60, 11 }, + [NSS_CH2_RST_RX_125M_N_RESET] = { 0x3b60, 12 }, + [NSS_CH2_HW_RST_RX_125M_N_RESET] = { 0x3b60, 13 }, + [NSS_CH2_RST_TX_125M_N_RESET] = { 0x3b60, 14 }, + [NSS_CH3_RST_RX_CLK_N_RESET] = { 0x3b60, 15 }, + [NSS_CH3_RST_TX_CLK_N_RESET] = { 0x3b60, 16 }, + [NSS_CH3_RST_RX_125M_N_RESET] = { 0x3b60, 17 }, + [NSS_CH3_HW_RST_RX_125M_N_RESET] = { 0x3b60, 18 }, + [NSS_CH3_RST_TX_125M_N_RESET] = { 0x3b60, 19 }, + [NSS_RST_RX_250M_125M_N_RESET] = { 0x3b60, 20 }, + [NSS_RST_TX_250M_125M_N_RESET] = { 0x3b60, 21 }, + [NSS_QSGMII_TXPI_RST_N_RESET] = { 0x3b60, 22 }, + [NSS_QSGMII_CDR_RST_N_RESET] = { 0x3b60, 23 }, + [NSS_SGMII2_CDR_RST_N_RESET] = { 0x3b60, 24 }, + [NSS_SGMII3_CDR_RST_N_RESET] = { 0x3b60, 25 }, + [NSS_CAL_PRBS_RST_N_RESET] = { 0x3b60, 26 }, + [NSS_LCKDT_RST_N_RESET] = { 0x3b60, 27 }, + [NSS_SRDS_N_RESET] = { 0x3b60, 28 }, }; static const struct regmap_config gcc_ipq806x_regmap_config = { @@ -2453,6 +3025,8 @@ static int gcc_ipq806x_probe(struct platform_device *pdev) { struct clk *clk; struct device *dev = &pdev->dev; + struct regmap *regmap; + int ret; /* Temporary until RPM clocks supported */ clk = clk_register_fixed_rate(dev, "cxo", NULL, CLK_IS_ROOT, 25000000); @@ -2463,7 +3037,25 @@ static int gcc_ipq806x_probe(struct platform_device *pdev) if (IS_ERR(clk)) return PTR_ERR(clk); - return qcom_cc_probe(pdev, &gcc_ipq806x_desc); + ret = qcom_cc_probe(pdev, &gcc_ipq806x_desc); + if (ret) + return ret; + + regmap = dev_get_regmap(dev, NULL); + if (!regmap) + return -ENODEV; + + /* Setup PLL18 static bits */ + regmap_update_bits(regmap, 0x31a4, 0xffffffc0, 0x40000400); + regmap_write(regmap, 0x31b0, 0x3080); + + /* Set GMAC footswitch sleep/wakeup values */ + regmap_write(regmap, 0x3cb8, 8); + regmap_write(regmap, 0x3cd8, 8); + regmap_write(regmap, 0x3cf8, 8); + regmap_write(regmap, 0x3d18, 8); + + return 0; } static int gcc_ipq806x_remove(struct platform_device *pdev) diff --git a/drivers/clk/qcom/gcc-msm8916.c b/drivers/clk/qcom/gcc-msm8916.c index d3458474eb3a..c66f7bc2ae87 100644 --- a/drivers/clk/qcom/gcc-msm8916.c +++ b/drivers/clk/qcom/gcc-msm8916.c @@ -71,8 +71,8 @@ static const char *gcc_xo_gpll0_bimc[] = { static const struct parent_map gcc_xo_gpll0a_gpll1_gpll2a_map[] = { { P_XO, 0 }, { P_GPLL0_AUX, 3 }, - { P_GPLL2_AUX, 2 }, { P_GPLL1, 1 }, + { P_GPLL2_AUX, 2 }, }; static const char *gcc_xo_gpll0a_gpll1_gpll2a[] = { @@ -1115,7 +1115,7 @@ static struct clk_rcg2 usb_hs_system_clk_src = { static const struct freq_tbl ftbl_gcc_venus0_vcodec0_clk[] = { F(100000000, P_GPLL0, 8, 0, 0), F(160000000, P_GPLL0, 5, 0, 0), - F(228570000, P_GPLL0, 5, 0, 0), + F(228570000, P_GPLL0, 3.5, 0, 0), { } }; diff --git a/drivers/clk/rockchip/clk-cpu.c b/drivers/clk/rockchip/clk-cpu.c index 8539c4fd34cc..fb7721bd37e6 100644 --- a/drivers/clk/rockchip/clk-cpu.c +++ b/drivers/clk/rockchip/clk-cpu.c @@ -231,7 +231,7 @@ static int rockchip_cpuclk_notifier_cb(struct notifier_block *nb, } struct clk *rockchip_clk_register_cpuclk(const char *name, - const char **parent_names, u8 num_parents, + const char *const *parent_names, u8 num_parents, const struct rockchip_cpuclk_reg_data *reg_data, const struct rockchip_cpuclk_rate_table *rates, int nrates, void __iomem *reg_base, spinlock_t *lock) diff --git a/drivers/clk/rockchip/clk-mmc-phase.c b/drivers/clk/rockchip/clk-mmc-phase.c index c842e3b60f21..e9f8df324e7c 100644 --- a/drivers/clk/rockchip/clk-mmc-phase.c +++ b/drivers/clk/rockchip/clk-mmc-phase.c @@ -120,7 +120,7 @@ static const struct clk_ops rockchip_mmc_clk_ops = { }; struct clk *rockchip_clk_register_mmc(const char *name, - const char **parent_names, u8 num_parents, + const char *const *parent_names, u8 num_parents, void __iomem *reg, int shift) { struct clk_init_data init; diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c index f8d3baf275b2..76027261f7ed 100644 --- a/drivers/clk/rockchip/clk-pll.c +++ b/drivers/clk/rockchip/clk-pll.c @@ -329,10 +329,10 @@ static const struct clk_ops rockchip_rk3066_pll_clk_ops = { */ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type, - const char *name, const char **parent_names, u8 num_parents, - void __iomem *base, int con_offset, int grf_lock_offset, - int lock_shift, int mode_offset, int mode_shift, - struct rockchip_pll_rate_table *rate_table, + const char *name, const char *const *parent_names, + u8 num_parents, void __iomem *base, int con_offset, + int grf_lock_offset, int lock_shift, int mode_offset, + int mode_shift, struct rockchip_pll_rate_table *rate_table, u8 clk_pll_flags, spinlock_t *lock) { const char *pll_parents[3]; diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c index 556ce041d371..e4f9d472f1ff 100644 --- a/drivers/clk/rockchip/clk-rk3188.c +++ b/drivers/clk/rockchip/clk-rk3188.c @@ -26,7 +26,7 @@ enum rk3188_plls { apll, cpll, dpll, gpll, }; -struct rockchip_pll_rate_table rk3188_pll_rates[] = { +static struct rockchip_pll_rate_table rk3188_pll_rates[] = { RK3066_PLL_RATE(2208000000, 1, 92, 1), RK3066_PLL_RATE(2184000000, 1, 91, 1), RK3066_PLL_RATE(2160000000, 1, 90, 1), diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index d17eb4528a28..4f817ed9e6ee 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -27,7 +27,7 @@ enum rk3288_plls { apll, dpll, cpll, gpll, npll, }; -struct rockchip_pll_rate_table rk3288_pll_rates[] = { +static struct rockchip_pll_rate_table rk3288_pll_rates[] = { RK3066_PLL_RATE(2208000000, 1, 92, 1), RK3066_PLL_RATE(2184000000, 1, 91, 1), RK3066_PLL_RATE(2160000000, 1, 90, 1), diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c index edb5d489ae61..052b94db0ff9 100644 --- a/drivers/clk/rockchip/clk.c +++ b/drivers/clk/rockchip/clk.c @@ -39,7 +39,7 @@ * sometimes without one of those components. */ static struct clk *rockchip_clk_register_branch(const char *name, - const char **parent_names, u8 num_parents, void __iomem *base, + const char *const *parent_names, u8 num_parents, void __iomem *base, int muxdiv_offset, u8 mux_shift, u8 mux_width, u8 mux_flags, u8 div_shift, u8 div_width, u8 div_flags, struct clk_div_table *div_table, int gate_offset, @@ -103,8 +103,8 @@ static struct clk *rockchip_clk_register_branch(const char *name, } static struct clk *rockchip_clk_register_frac_branch(const char *name, - const char **parent_names, u8 num_parents, void __iomem *base, - int muxdiv_offset, u8 div_flags, + const char *const *parent_names, u8 num_parents, + void __iomem *base, int muxdiv_offset, u8 div_flags, int gate_offset, u8 gate_shift, u8 gate_flags, unsigned long flags, spinlock_t *lock) { @@ -297,7 +297,7 @@ void __init rockchip_clk_register_branches( } void __init rockchip_clk_register_armclk(unsigned int lookup_id, - const char *name, const char **parent_names, + const char *name, const char *const *parent_names, u8 num_parents, const struct rockchip_cpuclk_reg_data *reg_data, const struct rockchip_cpuclk_rate_table *rates, diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h index e63cafe893e1..6b092673048a 100644 --- a/drivers/clk/rockchip/clk.h +++ b/drivers/clk/rockchip/clk.h @@ -108,7 +108,7 @@ struct rockchip_pll_rate_table { struct rockchip_pll_clock { unsigned int id; const char *name; - const char **parent_names; + const char *const *parent_names; u8 num_parents; unsigned long flags; int con_offset; @@ -140,10 +140,10 @@ struct rockchip_pll_clock { } struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type, - const char *name, const char **parent_names, u8 num_parents, - void __iomem *base, int con_offset, int grf_lock_offset, - int lock_shift, int reg_mode, int mode_shift, - struct rockchip_pll_rate_table *rate_table, + const char *name, const char *const *parent_names, + u8 num_parents, void __iomem *base, int con_offset, + int grf_lock_offset, int lock_shift, int reg_mode, + int mode_shift, struct rockchip_pll_rate_table *rate_table, u8 clk_pll_flags, spinlock_t *lock); struct rockchip_cpuclk_clksel { @@ -173,16 +173,16 @@ struct rockchip_cpuclk_reg_data { }; struct clk *rockchip_clk_register_cpuclk(const char *name, - const char **parent_names, u8 num_parents, + const char *const *parent_names, u8 num_parents, const struct rockchip_cpuclk_reg_data *reg_data, const struct rockchip_cpuclk_rate_table *rates, int nrates, void __iomem *reg_base, spinlock_t *lock); struct clk *rockchip_clk_register_mmc(const char *name, - const char **parent_names, u8 num_parents, + const char *const *parent_names, u8 num_parents, void __iomem *reg, int shift); -#define PNAME(x) static const char *x[] __initdata +#define PNAME(x) static const char *const x[] __initconst enum rockchip_clk_branch_type { branch_composite, @@ -197,7 +197,7 @@ struct rockchip_clk_branch { unsigned int id; enum rockchip_clk_branch_type branch_type; const char *name; - const char **parent_names; + const char *const *parent_names; u8 num_parents; unsigned long flags; int muxdiv_offset; @@ -403,7 +403,7 @@ void rockchip_clk_register_branches(struct rockchip_clk_branch *clk_list, void rockchip_clk_register_plls(struct rockchip_pll_clock *pll_list, unsigned int nr_pll, int grf_lock_offset); void rockchip_clk_register_armclk(unsigned int lookup_id, const char *name, - const char **parent_names, u8 num_parents, + const char *const *parent_names, u8 num_parents, const struct rockchip_cpuclk_reg_data *reg_data, const struct rockchip_cpuclk_rate_table *rates, int nrates); diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile index 17e9af7fe81f..5f6833ea355d 100644 --- a/drivers/clk/samsung/Makefile +++ b/drivers/clk/samsung/Makefile @@ -2,7 +2,7 @@ # Samsung Clock specific Makefile # -obj-$(CONFIG_COMMON_CLK) += clk.o clk-pll.o +obj-$(CONFIG_COMMON_CLK) += clk.o clk-pll.o clk-cpu.o obj-$(CONFIG_SOC_EXYNOS3250) += clk-exynos3250.o obj-$(CONFIG_ARCH_EXYNOS4) += clk-exynos4.o obj-$(CONFIG_SOC_EXYNOS4415) += clk-exynos4415.o @@ -10,7 +10,7 @@ obj-$(CONFIG_SOC_EXYNOS5250) += clk-exynos5250.o obj-$(CONFIG_SOC_EXYNOS5260) += clk-exynos5260.o obj-$(CONFIG_SOC_EXYNOS5410) += clk-exynos5410.o obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5420.o -obj-$(CONFIG_ARCH_EXYNOS5433) += clk-exynos5433.o +obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos5433.o obj-$(CONFIG_SOC_EXYNOS5440) += clk-exynos5440.o obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-audss.o obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-clkout.o diff --git a/drivers/clk/samsung/clk-cpu.c b/drivers/clk/samsung/clk-cpu.c new file mode 100644 index 000000000000..3a1fe07cfe9e --- /dev/null +++ b/drivers/clk/samsung/clk-cpu.c @@ -0,0 +1,349 @@ +/* + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * Author: Thomas Abraham <thomas.ab@samsung.com> + * + * Copyright (c) 2015 Samsung Electronics Co., Ltd. + * Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This file contains the utility function to register CPU clock for Samsung + * Exynos platforms. A CPU clock is defined as a clock supplied to a CPU or a + * group of CPUs. The CPU clock is typically derived from a hierarchy of clock + * blocks which includes mux and divider blocks. There are a number of other + * auxiliary clocks supplied to the CPU domain such as the debug blocks and AXI + * clock for CPU domain. The rates of these auxiliary clocks are related to the + * CPU clock rate and this relation is usually specified in the hardware manual + * of the SoC or supplied after the SoC characterization. + * + * The below implementation of the CPU clock allows the rate changes of the CPU + * clock and the corresponding rate changes of the auxillary clocks of the CPU + * domain. The platform clock driver provides a clock register configuration + * for each configurable rate which is then used to program the clock hardware + * registers to acheive a fast co-oridinated rate change for all the CPU domain + * clocks. + * + * On a rate change request for the CPU clock, the rate change is propagated + * upto the PLL supplying the clock to the CPU domain clock blocks. While the + * CPU domain PLL is reconfigured, the CPU domain clocks are driven using an + * alternate clock source. If required, the alternate clock source is divided + * down in order to keep the output clock rate within the previous OPP limits. +*/ + +#include <linux/errno.h> +#include "clk-cpu.h" + +#define E4210_SRC_CPU 0x0 +#define E4210_STAT_CPU 0x200 +#define E4210_DIV_CPU0 0x300 +#define E4210_DIV_CPU1 0x304 +#define E4210_DIV_STAT_CPU0 0x400 +#define E4210_DIV_STAT_CPU1 0x404 + +#define E4210_DIV0_RATIO0_MASK 0x7 +#define E4210_DIV1_HPM_MASK (0x7 << 4) +#define E4210_DIV1_COPY_MASK (0x7 << 0) +#define E4210_MUX_HPM_MASK (1 << 20) +#define E4210_DIV0_ATB_SHIFT 16 +#define E4210_DIV0_ATB_MASK (DIV_MASK << E4210_DIV0_ATB_SHIFT) + +#define MAX_DIV 8 +#define DIV_MASK 7 +#define DIV_MASK_ALL 0xffffffff +#define MUX_MASK 7 + +/* + * Helper function to wait until divider(s) have stabilized after the divider + * value has changed. + */ +static void wait_until_divider_stable(void __iomem *div_reg, unsigned long mask) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(10); + + do { + if (!(readl(div_reg) & mask)) + return; + } while (time_before(jiffies, timeout)); + + if (!(readl(div_reg) & mask)) + return; + + pr_err("%s: timeout in divider stablization\n", __func__); +} + +/* + * Helper function to wait until mux has stabilized after the mux selection + * value was changed. + */ +static void wait_until_mux_stable(void __iomem *mux_reg, u32 mux_pos, + unsigned long mux_value) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(10); + + do { + if (((readl(mux_reg) >> mux_pos) & MUX_MASK) == mux_value) + return; + } while (time_before(jiffies, timeout)); + + if (((readl(mux_reg) >> mux_pos) & MUX_MASK) == mux_value) + return; + + pr_err("%s: re-parenting mux timed-out\n", __func__); +} + +/* common round rate callback useable for all types of CPU clocks */ +static long exynos_cpuclk_round_rate(struct clk_hw *hw, + unsigned long drate, unsigned long *prate) +{ + struct clk *parent = __clk_get_parent(hw->clk); + *prate = __clk_round_rate(parent, drate); + return *prate; +} + +/* common recalc rate callback useable for all types of CPU clocks */ +static unsigned long exynos_cpuclk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + /* + * The CPU clock output (armclk) rate is the same as its parent + * rate. Although there exist certain dividers inside the CPU + * clock block that could be used to divide the parent clock, + * the driver does not make use of them currently, except during + * frequency transitions. + */ + return parent_rate; +} + +static const struct clk_ops exynos_cpuclk_clk_ops = { + .recalc_rate = exynos_cpuclk_recalc_rate, + .round_rate = exynos_cpuclk_round_rate, +}; + +/* + * Helper function to set the 'safe' dividers for the CPU clock. The parameters + * div and mask contain the divider value and the register bit mask of the + * dividers to be programmed. + */ +static void exynos_set_safe_div(void __iomem *base, unsigned long div, + unsigned long mask) +{ + unsigned long div0; + + div0 = readl(base + E4210_DIV_CPU0); + div0 = (div0 & ~mask) | (div & mask); + writel(div0, base + E4210_DIV_CPU0); + wait_until_divider_stable(base + E4210_DIV_STAT_CPU0, mask); +} + +/* handler for pre-rate change notification from parent clock */ +static int exynos_cpuclk_pre_rate_change(struct clk_notifier_data *ndata, + struct exynos_cpuclk *cpuclk, void __iomem *base) +{ + const struct exynos_cpuclk_cfg_data *cfg_data = cpuclk->cfg; + unsigned long alt_prate = clk_get_rate(cpuclk->alt_parent); + unsigned long alt_div = 0, alt_div_mask = DIV_MASK; + unsigned long div0, div1 = 0, mux_reg; + + /* find out the divider values to use for clock data */ + while ((cfg_data->prate * 1000) != ndata->new_rate) { + if (cfg_data->prate == 0) + return -EINVAL; + cfg_data++; + } + + spin_lock(cpuclk->lock); + + /* + * For the selected PLL clock frequency, get the pre-defined divider + * values. If the clock for sclk_hpm is not sourced from apll, then + * the values for DIV_COPY and DIV_HPM dividers need not be set. + */ + div0 = cfg_data->div0; + if (test_bit(CLK_CPU_HAS_DIV1, &cpuclk->flags)) { + div1 = cfg_data->div1; + if (readl(base + E4210_SRC_CPU) & E4210_MUX_HPM_MASK) + div1 = readl(base + E4210_DIV_CPU1) & + (E4210_DIV1_HPM_MASK | E4210_DIV1_COPY_MASK); + } + + /* + * If the old parent clock speed is less than the clock speed of + * the alternate parent, then it should be ensured that at no point + * the armclk speed is more than the old_prate until the dividers are + * set. Also workaround the issue of the dividers being set to lower + * values before the parent clock speed is set to new lower speed + * (this can result in too high speed of armclk output clocks). + */ + if (alt_prate > ndata->old_rate || ndata->old_rate > ndata->new_rate) { + unsigned long tmp_rate = min(ndata->old_rate, ndata->new_rate); + + alt_div = DIV_ROUND_UP(alt_prate, tmp_rate) - 1; + WARN_ON(alt_div >= MAX_DIV); + + if (test_bit(CLK_CPU_NEEDS_DEBUG_ALT_DIV, &cpuclk->flags)) { + /* + * In Exynos4210, ATB clock parent is also mout_core. So + * ATB clock also needs to be mantained at safe speed. + */ + alt_div |= E4210_DIV0_ATB_MASK; + alt_div_mask |= E4210_DIV0_ATB_MASK; + } + exynos_set_safe_div(base, alt_div, alt_div_mask); + div0 |= alt_div; + } + + /* select sclk_mpll as the alternate parent */ + mux_reg = readl(base + E4210_SRC_CPU); + writel(mux_reg | (1 << 16), base + E4210_SRC_CPU); + wait_until_mux_stable(base + E4210_STAT_CPU, 16, 2); + + /* alternate parent is active now. set the dividers */ + writel(div0, base + E4210_DIV_CPU0); + wait_until_divider_stable(base + E4210_DIV_STAT_CPU0, DIV_MASK_ALL); + + if (test_bit(CLK_CPU_HAS_DIV1, &cpuclk->flags)) { + writel(div1, base + E4210_DIV_CPU1); + wait_until_divider_stable(base + E4210_DIV_STAT_CPU1, + DIV_MASK_ALL); + } + + spin_unlock(cpuclk->lock); + return 0; +} + +/* handler for post-rate change notification from parent clock */ +static int exynos_cpuclk_post_rate_change(struct clk_notifier_data *ndata, + struct exynos_cpuclk *cpuclk, void __iomem *base) +{ + const struct exynos_cpuclk_cfg_data *cfg_data = cpuclk->cfg; + unsigned long div = 0, div_mask = DIV_MASK; + unsigned long mux_reg; + + /* find out the divider values to use for clock data */ + if (test_bit(CLK_CPU_NEEDS_DEBUG_ALT_DIV, &cpuclk->flags)) { + while ((cfg_data->prate * 1000) != ndata->new_rate) { + if (cfg_data->prate == 0) + return -EINVAL; + cfg_data++; + } + } + + spin_lock(cpuclk->lock); + + /* select mout_apll as the alternate parent */ + mux_reg = readl(base + E4210_SRC_CPU); + writel(mux_reg & ~(1 << 16), base + E4210_SRC_CPU); + wait_until_mux_stable(base + E4210_STAT_CPU, 16, 1); + + if (test_bit(CLK_CPU_NEEDS_DEBUG_ALT_DIV, &cpuclk->flags)) { + div |= (cfg_data->div0 & E4210_DIV0_ATB_MASK); + div_mask |= E4210_DIV0_ATB_MASK; + } + + exynos_set_safe_div(base, div, div_mask); + spin_unlock(cpuclk->lock); + return 0; +} + +/* + * This notifier function is called for the pre-rate and post-rate change + * notifications of the parent clock of cpuclk. + */ +static int exynos_cpuclk_notifier_cb(struct notifier_block *nb, + unsigned long event, void *data) +{ + struct clk_notifier_data *ndata = data; + struct exynos_cpuclk *cpuclk; + void __iomem *base; + int err = 0; + + cpuclk = container_of(nb, struct exynos_cpuclk, clk_nb); + base = cpuclk->ctrl_base; + + if (event == PRE_RATE_CHANGE) + err = exynos_cpuclk_pre_rate_change(ndata, cpuclk, base); + else if (event == POST_RATE_CHANGE) + err = exynos_cpuclk_post_rate_change(ndata, cpuclk, base); + + return notifier_from_errno(err); +} + +/* helper function to register a CPU clock */ +int __init exynos_register_cpu_clock(struct samsung_clk_provider *ctx, + unsigned int lookup_id, const char *name, const char *parent, + const char *alt_parent, unsigned long offset, + const struct exynos_cpuclk_cfg_data *cfg, + unsigned long num_cfgs, unsigned long flags) +{ + struct exynos_cpuclk *cpuclk; + struct clk_init_data init; + struct clk *clk; + int ret = 0; + + cpuclk = kzalloc(sizeof(*cpuclk), GFP_KERNEL); + if (!cpuclk) + return -ENOMEM; + + init.name = name; + init.flags = CLK_SET_RATE_PARENT; + init.parent_names = &parent; + init.num_parents = 1; + init.ops = &exynos_cpuclk_clk_ops; + + cpuclk->hw.init = &init; + cpuclk->ctrl_base = ctx->reg_base + offset; + cpuclk->lock = &ctx->lock; + cpuclk->flags = flags; + cpuclk->clk_nb.notifier_call = exynos_cpuclk_notifier_cb; + + cpuclk->alt_parent = __clk_lookup(alt_parent); + if (!cpuclk->alt_parent) { + pr_err("%s: could not lookup alternate parent %s\n", + __func__, alt_parent); + ret = -EINVAL; + goto free_cpuclk; + } + + clk = __clk_lookup(parent); + if (!clk) { + pr_err("%s: could not lookup parent clock %s\n", + __func__, parent); + ret = -EINVAL; + goto free_cpuclk; + } + + ret = clk_notifier_register(clk, &cpuclk->clk_nb); + if (ret) { + pr_err("%s: failed to register clock notifier for %s\n", + __func__, name); + goto free_cpuclk; + } + + cpuclk->cfg = kmemdup(cfg, sizeof(*cfg) * num_cfgs, GFP_KERNEL); + if (!cpuclk->cfg) { + pr_err("%s: could not allocate memory for cpuclk data\n", + __func__); + ret = -ENOMEM; + goto unregister_clk_nb; + } + + clk = clk_register(NULL, &cpuclk->hw); + if (IS_ERR(clk)) { + pr_err("%s: could not register cpuclk %s\n", __func__, name); + ret = PTR_ERR(clk); + goto free_cpuclk_data; + } + + samsung_clk_add_lookup(ctx, clk, lookup_id); + return 0; + +free_cpuclk_data: + kfree(cpuclk->cfg); +unregister_clk_nb: + clk_notifier_unregister(__clk_lookup(parent), &cpuclk->clk_nb); +free_cpuclk: + kfree(cpuclk); + return ret; +} diff --git a/drivers/clk/samsung/clk-cpu.h b/drivers/clk/samsung/clk-cpu.h new file mode 100644 index 000000000000..37874d3c3165 --- /dev/null +++ b/drivers/clk/samsung/clk-cpu.h @@ -0,0 +1,73 @@ +/* + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Common Clock Framework support for all PLL's in Samsung platforms +*/ + +#ifndef __SAMSUNG_CLK_CPU_H +#define __SAMSUNG_CLK_CPU_H + +#include "clk.h" + +/** + * struct exynos_cpuclk_data: config data to setup cpu clocks. + * @prate: frequency of the primary parent clock (in KHz). + * @div0: value to be programmed in the div_cpu0 register. + * @div1: value to be programmed in the div_cpu1 register. + * + * This structure holds the divider configuration data for dividers in the CPU + * clock domain. The parent frequency at which these divider values are valid is + * specified in @prate. The @prate is the frequency of the primary parent clock. + * For CPU clock domains that do not have a DIV1 register, the @div1 member + * value is not used. + */ +struct exynos_cpuclk_cfg_data { + unsigned long prate; + unsigned long div0; + unsigned long div1; +}; + +/** + * struct exynos_cpuclk: information about clock supplied to a CPU core. + * @hw: handle between CCF and CPU clock. + * @alt_parent: alternate parent clock to use when switching the speed + * of the primary parent clock. + * @ctrl_base: base address of the clock controller. + * @lock: cpu clock domain register access lock. + * @cfg: cpu clock rate configuration data. + * @num_cfgs: number of array elements in @cfg array. + * @clk_nb: clock notifier registered for changes in clock speed of the + * primary parent clock. + * @flags: configuration flags for the CPU clock. + * + * This structure holds information required for programming the CPU clock for + * various clock speeds. + */ +struct exynos_cpuclk { + struct clk_hw hw; + struct clk *alt_parent; + void __iomem *ctrl_base; + spinlock_t *lock; + const struct exynos_cpuclk_cfg_data *cfg; + const unsigned long num_cfgs; + struct notifier_block clk_nb; + unsigned long flags; + +/* The CPU clock registers has DIV1 configuration register */ +#define CLK_CPU_HAS_DIV1 (1 << 0) +/* When ALT parent is active, debug clocks need safe divider values */ +#define CLK_CPU_NEEDS_DEBUG_ALT_DIV (1 << 1) +}; + +extern int __init exynos_register_cpu_clock(struct samsung_clk_provider *ctx, + unsigned int lookup_id, const char *name, + const char *parent, const char *alt_parent, + unsigned long offset, + const struct exynos_cpuclk_cfg_data *cfg, + unsigned long num_cfgs, unsigned long flags); + +#endif /* __SAMSUNG_CLK_CPU_H */ diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index 714d6ba782c8..cae2c048488d 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -19,6 +19,7 @@ #include <linux/syscore_ops.h> #include "clk.h" +#include "clk-cpu.h" /* Exynos4 clock controller register offsets */ #define SRC_LEFTBUS 0x4200 @@ -534,7 +535,8 @@ static struct samsung_fixed_factor_clock exynos4x12_fixed_factor_clks[] __initda /* list of mux clocks supported in all exynos4 soc's */ static struct samsung_mux_clock exynos4_mux_clks[] __initdata = { MUX_FA(CLK_MOUT_APLL, "mout_apll", mout_apll_p, SRC_CPU, 0, 1, - CLK_SET_RATE_PARENT, 0, "mout_apll"), + CLK_SET_RATE_PARENT | CLK_RECALC_NEW_RATES, 0, + "mout_apll"), MUX(CLK_MOUT_HDMI, "mout_hdmi", mout_hdmi_p, SRC_TV, 0, 1), MUX(0, "mout_mfc1", sclk_evpll_p, SRC_MFC, 4, 1), MUX(0, "mout_mfc", mout_mfc_p, SRC_MFC, 8, 1), @@ -1378,6 +1380,22 @@ static void __init exynos4x12_core_down_clock(void) __raw_writel(0x0, reg_base + E4X12_PWR_CTRL2); } +#define E4210_CPU_DIV0(apll, pclk_dbg, atb, periph, corem1, corem0) \ + (((apll) << 24) | ((pclk_dbg) << 20) | ((atb) << 16) | \ + ((periph) << 12) | ((corem1) << 8) | ((corem0) << 4)) +#define E4210_CPU_DIV1(hpm, copy) \ + (((hpm) << 4) | ((copy) << 0)) + +static const struct exynos_cpuclk_cfg_data e4210_armclk_d[] __initconst = { + { 1200000, E4210_CPU_DIV0(7, 1, 4, 3, 7, 3), E4210_CPU_DIV1(0, 5), }, + { 1000000, E4210_CPU_DIV0(7, 1, 4, 3, 7, 3), E4210_CPU_DIV1(0, 4), }, + { 800000, E4210_CPU_DIV0(7, 1, 3, 3, 7, 3), E4210_CPU_DIV1(0, 3), }, + { 500000, E4210_CPU_DIV0(7, 1, 3, 3, 7, 3), E4210_CPU_DIV1(0, 3), }, + { 400000, E4210_CPU_DIV0(7, 1, 3, 3, 7, 3), E4210_CPU_DIV1(0, 3), }, + { 200000, E4210_CPU_DIV0(0, 1, 1, 1, 3, 1), E4210_CPU_DIV1(0, 3), }, + { 0 }, +}; + /* register exynos4 clocks */ static void __init exynos4_clk_init(struct device_node *np, enum exynos4_soc soc) @@ -1455,6 +1473,10 @@ static void __init exynos4_clk_init(struct device_node *np, samsung_clk_register_fixed_factor(ctx, exynos4210_fixed_factor_clks, ARRAY_SIZE(exynos4210_fixed_factor_clks)); + exynos_register_cpu_clock(ctx, CLK_ARM_CLK, "armclk", + mout_core_p4210[0], mout_core_p4210[1], 0x14200, + e4210_armclk_d, ARRAY_SIZE(e4210_armclk_d), + CLK_CPU_NEEDS_DEBUG_ALT_DIV | CLK_CPU_HAS_DIV1); } else { samsung_clk_register_mux(ctx, exynos4x12_mux_clks, ARRAY_SIZE(exynos4x12_mux_clks)); diff --git a/drivers/clk/samsung/clk-exynos5260.c b/drivers/clk/samsung/clk-exynos5260.c index e2e5193d1049..06f96eb7cf93 100644 --- a/drivers/clk/samsung/clk-exynos5260.c +++ b/drivers/clk/samsung/clk-exynos5260.c @@ -94,7 +94,7 @@ PNAME(mout_aud_pll_user_p) = {"fin_pll", "fout_aud_pll"}; PNAME(mout_sclk_aud_i2s_p) = {"mout_aud_pll_user", "ioclk_i2s_cdclk"}; PNAME(mout_sclk_aud_pcm_p) = {"mout_aud_pll_user", "ioclk_pcm_extclk"}; -struct samsung_mux_clock aud_mux_clks[] __initdata = { +static struct samsung_mux_clock aud_mux_clks[] __initdata = { MUX(AUD_MOUT_AUD_PLL_USER, "mout_aud_pll_user", mout_aud_pll_user_p, MUX_SEL_AUD, 0, 1), MUX(AUD_MOUT_SCLK_AUD_I2S, "mout_sclk_aud_i2s", mout_sclk_aud_i2s_p, @@ -103,7 +103,7 @@ struct samsung_mux_clock aud_mux_clks[] __initdata = { MUX_SEL_AUD, 8, 1), }; -struct samsung_div_clock aud_div_clks[] __initdata = { +static struct samsung_div_clock aud_div_clks[] __initdata = { DIV(AUD_DOUT_ACLK_AUD_131, "dout_aclk_aud_131", "mout_aud_pll_user", DIV_AUD0, 0, 4), @@ -115,7 +115,7 @@ struct samsung_div_clock aud_div_clks[] __initdata = { DIV_AUD1, 12, 4), }; -struct samsung_gate_clock aud_gate_clks[] __initdata = { +static struct samsung_gate_clock aud_gate_clks[] __initdata = { GATE(AUD_SCLK_I2S, "sclk_aud_i2s", "dout_sclk_aud_i2s", EN_SCLK_AUD, 0, CLK_SET_RATE_PARENT, 0), GATE(AUD_SCLK_PCM, "sclk_aud_pcm", "dout_sclk_aud_pcm", @@ -135,7 +135,7 @@ struct samsung_gate_clock aud_gate_clks[] __initdata = { static void __init exynos5260_clk_aud_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.mux_clks = aud_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(aud_mux_clks); @@ -203,7 +203,7 @@ PNAME(mout_phyclk_mipi_dphy_4lmrxclk_esc0_user_p) = {"fin_pll", PNAME(mout_sclk_hdmi_spdif_p) = {"fin_pll", "ioclk_spdif_extclk", "dout_aclk_peri_aud", "phyclk_hdmi_phy_ref_cko"}; -struct samsung_mux_clock disp_mux_clks[] __initdata = { +static struct samsung_mux_clock disp_mux_clks[] __initdata = { MUX(DISP_MOUT_ACLK_DISP_333_USER, "mout_aclk_disp_333_user", mout_aclk_disp_333_user_p, MUX_SEL_DISP0, 0, 1), @@ -272,7 +272,7 @@ struct samsung_mux_clock disp_mux_clks[] __initdata = { MUX_SEL_DISP4, 4, 2), }; -struct samsung_div_clock disp_div_clks[] __initdata = { +static struct samsung_div_clock disp_div_clks[] __initdata = { DIV(DISP_DOUT_PCLK_DISP_111, "dout_pclk_disp_111", "mout_aclk_disp_222_user", DIV_DISP, 8, 4), @@ -285,7 +285,7 @@ struct samsung_div_clock disp_div_clks[] __initdata = { DIV_DISP, 16, 4), }; -struct samsung_gate_clock disp_gate_clks[] __initdata = { +static struct samsung_gate_clock disp_gate_clks[] __initdata = { GATE(DISP_MOUT_HDMI_PHY_PIXEL_USER, "sclk_hdmi_link_i_pixel", "mout_phyclk_hdmi_phy_pixel_clko_user", EN_SCLK_DISP0, 26, CLK_SET_RATE_PARENT, 0), @@ -325,7 +325,7 @@ struct samsung_gate_clock disp_gate_clks[] __initdata = { static void __init exynos5260_clk_disp_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.mux_clks = disp_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(disp_mux_clks); @@ -363,13 +363,13 @@ static unsigned long egl_clk_regs[] __initdata = { PNAME(mout_egl_b_p) = {"mout_egl_pll", "dout_bus_pll"}; PNAME(mout_egl_pll_p) = {"fin_pll", "fout_egl_pll"}; -struct samsung_mux_clock egl_mux_clks[] __initdata = { +static struct samsung_mux_clock egl_mux_clks[] __initdata = { MUX(EGL_MOUT_EGL_PLL, "mout_egl_pll", mout_egl_pll_p, MUX_SEL_EGL, 4, 1), MUX(EGL_MOUT_EGL_B, "mout_egl_b", mout_egl_b_p, MUX_SEL_EGL, 16, 1), }; -struct samsung_div_clock egl_div_clks[] __initdata = { +static struct samsung_div_clock egl_div_clks[] __initdata = { DIV(EGL_DOUT_EGL1, "dout_egl1", "mout_egl_b", DIV_EGL, 0, 3), DIV(EGL_DOUT_EGL2, "dout_egl2", "dout_egl1", DIV_EGL, 4, 3), DIV(EGL_DOUT_ACLK_EGL, "dout_aclk_egl", "dout_egl2", DIV_EGL, 8, 3), @@ -389,7 +389,7 @@ static struct samsung_pll_clock egl_pll_clks[] __initdata = { static void __init exynos5260_clk_egl_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.pll_clks = egl_pll_clks; cmu.nr_pll_clks = ARRAY_SIZE(egl_pll_clks); @@ -433,7 +433,7 @@ PNAME(mout_phyclk_usbdrd30_pipe_pclk_user_p) = {"fin_pll", PNAME(mout_phyclk_usbdrd30_phyclock_user_p) = {"fin_pll", "phyclk_usbdrd30_udrd30_phyclock"}; -struct samsung_mux_clock fsys_mux_clks[] __initdata = { +static struct samsung_mux_clock fsys_mux_clks[] __initdata = { MUX(FSYS_MOUT_PHYCLK_USBDRD30_PHYCLOCK_USER, "mout_phyclk_usbdrd30_phyclock_user", mout_phyclk_usbdrd30_phyclock_user_p, @@ -456,7 +456,7 @@ struct samsung_mux_clock fsys_mux_clks[] __initdata = { MUX_SEL_FSYS1, 16, 1), }; -struct samsung_gate_clock fsys_gate_clks[] __initdata = { +static struct samsung_gate_clock fsys_gate_clks[] __initdata = { GATE(FSYS_PHYCLK_USBHOST20, "phyclk_usbhost20_phyclock", "mout_phyclk_usbdrd30_phyclock_user", EN_SCLK_FSYS, 1, 0, 0), @@ -491,7 +491,7 @@ struct samsung_gate_clock fsys_gate_clks[] __initdata = { static void __init exynos5260_clk_fsys_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.mux_clks = fsys_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(fsys_mux_clks); @@ -537,18 +537,18 @@ static unsigned long g2d_clk_regs[] __initdata = { PNAME(mout_aclk_g2d_333_user_p) = {"fin_pll", "dout_aclk_g2d_333"}; -struct samsung_mux_clock g2d_mux_clks[] __initdata = { +static struct samsung_mux_clock g2d_mux_clks[] __initdata = { MUX(G2D_MOUT_ACLK_G2D_333_USER, "mout_aclk_g2d_333_user", mout_aclk_g2d_333_user_p, MUX_SEL_G2D, 0, 1), }; -struct samsung_div_clock g2d_div_clks[] __initdata = { +static struct samsung_div_clock g2d_div_clks[] __initdata = { DIV(G2D_DOUT_PCLK_G2D_83, "dout_pclk_g2d_83", "mout_aclk_g2d_333_user", DIV_G2D, 0, 3), }; -struct samsung_gate_clock g2d_gate_clks[] __initdata = { +static struct samsung_gate_clock g2d_gate_clks[] __initdata = { GATE(G2D_CLK_G2D, "clk_g2d", "mout_aclk_g2d_333_user", EN_IP_G2D, 4, 0, 0), GATE(G2D_CLK_JPEG, "clk_jpeg", "mout_aclk_g2d_333_user", @@ -580,7 +580,7 @@ struct samsung_gate_clock g2d_gate_clks[] __initdata = { static void __init exynos5260_clk_g2d_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.mux_clks = g2d_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(g2d_mux_clks); @@ -617,17 +617,17 @@ static unsigned long g3d_clk_regs[] __initdata = { PNAME(mout_g3d_pll_p) = {"fin_pll", "fout_g3d_pll"}; -struct samsung_mux_clock g3d_mux_clks[] __initdata = { +static struct samsung_mux_clock g3d_mux_clks[] __initdata = { MUX(G3D_MOUT_G3D_PLL, "mout_g3d_pll", mout_g3d_pll_p, MUX_SEL_G3D, 0, 1), }; -struct samsung_div_clock g3d_div_clks[] __initdata = { +static struct samsung_div_clock g3d_div_clks[] __initdata = { DIV(G3D_DOUT_PCLK_G3D, "dout_pclk_g3d", "dout_aclk_g3d", DIV_G3D, 0, 3), DIV(G3D_DOUT_ACLK_G3D, "dout_aclk_g3d", "mout_g3d_pll", DIV_G3D, 4, 3), }; -struct samsung_gate_clock g3d_gate_clks[] __initdata = { +static struct samsung_gate_clock g3d_gate_clks[] __initdata = { GATE(G3D_CLK_G3D, "clk_g3d", "dout_aclk_g3d", EN_IP_G3D, 2, 0, 0), GATE(G3D_CLK_G3D_HPM, "clk_g3d_hpm", "dout_aclk_g3d", EN_IP_G3D, 3, 0, 0), @@ -641,7 +641,7 @@ static struct samsung_pll_clock g3d_pll_clks[] __initdata = { static void __init exynos5260_clk_g3d_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.pll_clks = g3d_pll_clks; cmu.nr_pll_clks = ARRAY_SIZE(g3d_pll_clks); @@ -694,7 +694,7 @@ PNAME(mout_aclk_m2m_400_user_p) = {"fin_pll", "dout_aclk_gscl_400"}; PNAME(mout_aclk_gscl_fimc_user_p) = {"fin_pll", "dout_aclk_gscl_400"}; PNAME(mout_aclk_csis_p) = {"dout_aclk_csis_200", "mout_aclk_gscl_fimc_user"}; -struct samsung_mux_clock gscl_mux_clks[] __initdata = { +static struct samsung_mux_clock gscl_mux_clks[] __initdata = { MUX(GSCL_MOUT_ACLK_GSCL_333_USER, "mout_aclk_gscl_333_user", mout_aclk_gscl_333_user_p, MUX_SEL_GSCL, 0, 1), @@ -708,7 +708,7 @@ struct samsung_mux_clock gscl_mux_clks[] __initdata = { MUX_SEL_GSCL, 24, 1), }; -struct samsung_div_clock gscl_div_clks[] __initdata = { +static struct samsung_div_clock gscl_div_clks[] __initdata = { DIV(GSCL_DOUT_PCLK_M2M_100, "dout_pclk_m2m_100", "mout_aclk_m2m_400_user", DIV_GSCL, 0, 3), @@ -717,7 +717,7 @@ struct samsung_div_clock gscl_div_clks[] __initdata = { DIV_GSCL, 4, 3), }; -struct samsung_gate_clock gscl_gate_clks[] __initdata = { +static struct samsung_gate_clock gscl_gate_clks[] __initdata = { GATE(GSCL_SCLK_CSIS0_WRAP, "sclk_csis0_wrap", "dout_aclk_csis_200", EN_SCLK_GSCL_FIMC, 0, CLK_SET_RATE_PARENT, 0), GATE(GSCL_SCLK_CSIS1_WRAP, "sclk_csis1_wrap", "dout_aclk_csis_200", @@ -776,7 +776,7 @@ struct samsung_gate_clock gscl_gate_clks[] __initdata = { static void __init exynos5260_clk_gscl_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.mux_clks = gscl_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(gscl_mux_clks); @@ -813,14 +813,14 @@ static unsigned long isp_clk_regs[] __initdata = { PNAME(mout_isp_400_user_p) = {"fin_pll", "dout_aclk_isp1_400"}; PNAME(mout_isp_266_user_p) = {"fin_pll", "dout_aclk_isp1_266"}; -struct samsung_mux_clock isp_mux_clks[] __initdata = { +static struct samsung_mux_clock isp_mux_clks[] __initdata = { MUX(ISP_MOUT_ISP_266_USER, "mout_isp_266_user", mout_isp_266_user_p, MUX_SEL_ISP0, 0, 1), MUX(ISP_MOUT_ISP_400_USER, "mout_isp_400_user", mout_isp_400_user_p, MUX_SEL_ISP0, 4, 1), }; -struct samsung_div_clock isp_div_clks[] __initdata = { +static struct samsung_div_clock isp_div_clks[] __initdata = { DIV(ISP_DOUT_PCLK_ISP_66, "dout_pclk_isp_66", "mout_kfc", DIV_ISP, 0, 3), DIV(ISP_DOUT_PCLK_ISP_133, "dout_pclk_isp_133", "mout_kfc", @@ -832,7 +832,7 @@ struct samsung_div_clock isp_div_clks[] __initdata = { DIV(ISP_DOUT_SCLK_MPWM, "dout_sclk_mpwm", "mout_kfc", DIV_ISP, 20, 2), }; -struct samsung_gate_clock isp_gate_clks[] __initdata = { +static struct samsung_gate_clock isp_gate_clks[] __initdata = { GATE(ISP_CLK_GIC, "clk_isp_gic", "mout_aclk_isp1_266", EN_IP_ISP0, 15, 0, 0), @@ -895,7 +895,7 @@ struct samsung_gate_clock isp_gate_clks[] __initdata = { static void __init exynos5260_clk_isp_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.mux_clks = isp_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(isp_mux_clks); @@ -934,13 +934,13 @@ static unsigned long kfc_clk_regs[] __initdata = { PNAME(mout_kfc_pll_p) = {"fin_pll", "fout_kfc_pll"}; PNAME(mout_kfc_p) = {"mout_kfc_pll", "dout_media_pll"}; -struct samsung_mux_clock kfc_mux_clks[] __initdata = { +static struct samsung_mux_clock kfc_mux_clks[] __initdata = { MUX(KFC_MOUT_KFC_PLL, "mout_kfc_pll", mout_kfc_pll_p, MUX_SEL_KFC0, 0, 1), MUX(KFC_MOUT_KFC, "mout_kfc", mout_kfc_p, MUX_SEL_KFC2, 0, 1), }; -struct samsung_div_clock kfc_div_clks[] __initdata = { +static struct samsung_div_clock kfc_div_clks[] __initdata = { DIV(KFC_DOUT_KFC1, "dout_kfc1", "mout_kfc", DIV_KFC, 0, 3), DIV(KFC_DOUT_KFC2, "dout_kfc2", "dout_kfc1", DIV_KFC, 4, 3), DIV(KFC_DOUT_KFC_ATCLK, "dout_kfc_atclk", "dout_kfc2", DIV_KFC, 8, 3), @@ -959,7 +959,7 @@ static struct samsung_pll_clock kfc_pll_clks[] __initdata = { static void __init exynos5260_clk_kfc_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.pll_clks = kfc_pll_clks; cmu.nr_pll_clks = ARRAY_SIZE(kfc_pll_clks); @@ -993,18 +993,18 @@ static unsigned long mfc_clk_regs[] __initdata = { PNAME(mout_aclk_mfc_333_user_p) = {"fin_pll", "dout_aclk_mfc_333"}; -struct samsung_mux_clock mfc_mux_clks[] __initdata = { +static struct samsung_mux_clock mfc_mux_clks[] __initdata = { MUX(MFC_MOUT_ACLK_MFC_333_USER, "mout_aclk_mfc_333_user", mout_aclk_mfc_333_user_p, MUX_SEL_MFC, 0, 1), }; -struct samsung_div_clock mfc_div_clks[] __initdata = { +static struct samsung_div_clock mfc_div_clks[] __initdata = { DIV(MFC_DOUT_PCLK_MFC_83, "dout_pclk_mfc_83", "mout_aclk_mfc_333_user", DIV_MFC, 0, 3), }; -struct samsung_gate_clock mfc_gate_clks[] __initdata = { +static struct samsung_gate_clock mfc_gate_clks[] __initdata = { GATE(MFC_CLK_MFC, "clk_mfc", "mout_aclk_mfc_333_user", EN_IP_MFC, 1, 0, 0), GATE(MFC_CLK_SMMU2_MFCM0, "clk_smmu2_mfcm0", "mout_aclk_mfc_333_user", @@ -1015,7 +1015,7 @@ struct samsung_gate_clock mfc_gate_clks[] __initdata = { static void __init exynos5260_clk_mfc_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.mux_clks = mfc_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(mfc_mux_clks); @@ -1078,7 +1078,7 @@ PNAME(mout_mif_drex2x_p) = {"dout_mem_pll", "dout_bus_pll"}; PNAME(mout_clkm_phy_p) = {"mout_mif_drex", "dout_media_pll"}; PNAME(mout_clk2x_phy_p) = {"mout_mif_drex2x", "dout_media_pll"}; -struct samsung_mux_clock mif_mux_clks[] __initdata = { +static struct samsung_mux_clock mif_mux_clks[] __initdata = { MUX(MIF_MOUT_MEM_PLL, "mout_mem_pll", mout_mem_pll_p, MUX_SEL_MIF, 0, 1), MUX(MIF_MOUT_BUS_PLL, "mout_bus_pll", mout_bus_pll_p, @@ -1095,7 +1095,7 @@ struct samsung_mux_clock mif_mux_clks[] __initdata = { MUX_SEL_MIF, 24, 1), }; -struct samsung_div_clock mif_div_clks[] __initdata = { +static struct samsung_div_clock mif_div_clks[] __initdata = { DIV(MIF_DOUT_MEDIA_PLL, "dout_media_pll", "mout_media_pll", DIV_MIF, 0, 3), DIV(MIF_DOUT_MEM_PLL, "dout_mem_pll", "mout_mem_pll", @@ -1114,7 +1114,7 @@ struct samsung_div_clock mif_div_clks[] __initdata = { DIV_MIF, 28, 4), }; -struct samsung_gate_clock mif_gate_clks[] __initdata = { +static struct samsung_gate_clock mif_gate_clks[] __initdata = { GATE(MIF_CLK_LPDDR3PHY_WRAP0, "clk_lpddr3phy_wrap0", "dout_clk2x_phy", EN_IP_MIF, 12, CLK_IGNORE_UNUSED, 0), GATE(MIF_CLK_LPDDR3PHY_WRAP1, "clk_lpddr3phy_wrap1", "dout_clk2x_phy", @@ -1162,7 +1162,7 @@ static struct samsung_pll_clock mif_pll_clks[] __initdata = { static void __init exynos5260_clk_mif_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.pll_clks = mif_pll_clks; cmu.nr_pll_clks = ARRAY_SIZE(mif_pll_clks); @@ -1221,7 +1221,7 @@ PNAME(mout_sclk_i2scod_p) = {"ioclk_i2s_cdclk", "fin_pll", "dout_aclk_peri_aud", PNAME(mout_sclk_spdif_p) = {"ioclk_spdif_extclk", "fin_pll", "dout_aclk_peri_aud", "phyclk_hdmi_phy_ref_cko"}; -struct samsung_mux_clock peri_mux_clks[] __initdata = { +static struct samsung_mux_clock peri_mux_clks[] __initdata = { MUX(PERI_MOUT_SCLK_PCM, "mout_sclk_pcm", mout_sclk_pcm_p, MUX_SEL_PERI1, 4, 2), MUX(PERI_MOUT_SCLK_I2SCOD, "mout_sclk_i2scod", mout_sclk_i2scod_p, @@ -1230,12 +1230,12 @@ struct samsung_mux_clock peri_mux_clks[] __initdata = { MUX_SEL_PERI1, 20, 2), }; -struct samsung_div_clock peri_div_clks[] __initdata = { +static struct samsung_div_clock peri_div_clks[] __initdata = { DIV(PERI_DOUT_PCM, "dout_pcm", "mout_sclk_pcm", DIV_PERI, 0, 8), DIV(PERI_DOUT_I2S, "dout_i2s", "mout_sclk_i2scod", DIV_PERI, 8, 6), }; -struct samsung_gate_clock peri_gate_clks[] __initdata = { +static struct samsung_gate_clock peri_gate_clks[] __initdata = { GATE(PERI_SCLK_PCM1, "sclk_pcm1", "dout_pcm", EN_SCLK_PERI, 0, CLK_SET_RATE_PARENT, 0), GATE(PERI_SCLK_I2S, "sclk_i2s", "dout_i2s", EN_SCLK_PERI, 1, @@ -1370,7 +1370,7 @@ struct samsung_gate_clock peri_gate_clks[] __initdata = { static void __init exynos5260_clk_peri_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.mux_clks = peri_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(peri_mux_clks); @@ -1432,7 +1432,7 @@ static unsigned long top_clk_regs[] __initdata = { }; /* fixed rate clocks generated inside the soc */ -struct samsung_fixed_rate_clock fixed_rate_clks[] __initdata = { +static struct samsung_fixed_rate_clock fixed_rate_clks[] __initdata = { FRATE(PHYCLK_DPTX_PHY_CH3_TXD_CLK, "phyclk_dptx_phy_ch3_txd_clk", NULL, CLK_IS_ROOT, 270000000), FRATE(PHYCLK_DPTX_PHY_CH2_TXD_CLK, "phyclk_dptx_phy_ch2_txd_clk", NULL, @@ -1519,7 +1519,7 @@ PNAME(mout_sclk_fsys_mmc1_sdclkin_b_p) = {"mout_sclk_fsys_mmc1_sdclkin_a", PNAME(mout_sclk_fsys_mmc2_sdclkin_b_p) = {"mout_sclk_fsys_mmc2_sdclkin_a", "mout_mediatop_pll_user"}; -struct samsung_mux_clock top_mux_clks[] __initdata = { +static struct samsung_mux_clock top_mux_clks[] __initdata = { MUX(TOP_MOUT_MEDIATOP_PLL_USER, "mout_mediatop_pll_user", mout_mediatop_pll_user_p, MUX_SEL_TOP_PLL0, 0, 1), @@ -1679,7 +1679,7 @@ struct samsung_mux_clock top_mux_clks[] __initdata = { MUX_SEL_TOP_GSCL, 20, 1), }; -struct samsung_div_clock top_div_clks[] __initdata = { +static struct samsung_div_clock top_div_clks[] __initdata = { DIV(TOP_DOUT_ACLK_G2D_333, "dout_aclk_g2d_333", "mout_aclk_g2d_333", DIV_TOP_G2D_MFC, 0, 3), DIV(TOP_DOUT_ACLK_MFC_333, "dout_aclk_mfc_333", "mout_aclk_mfc_333", @@ -1800,7 +1800,7 @@ struct samsung_div_clock top_div_clks[] __initdata = { }; -struct samsung_gate_clock top_gate_clks[] __initdata = { +static struct samsung_gate_clock top_gate_clks[] __initdata = { GATE(TOP_SCLK_MMC0, "sclk_fsys_mmc0_sdclkin", "dout_sclk_fsys_mmc0_sdclkin_b", EN_SCLK_TOP, 7, CLK_SET_RATE_PARENT, 0), @@ -1826,7 +1826,7 @@ static struct samsung_pll_clock top_pll_clks[] __initdata = { static void __init exynos5260_clk_top_init(struct device_node *np) { - struct samsung_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = { NULL }; cmu.pll_clks = top_pll_clks; cmu.nr_pll_clks = ARRAY_SIZE(top_pll_clks); diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c index 07d666cc6a29..a1d731ca8f48 100644 --- a/drivers/clk/samsung/clk-exynos5420.c +++ b/drivers/clk/samsung/clk-exynos5420.c @@ -271,6 +271,7 @@ static const struct samsung_clk_reg_dump exynos5420_set_clksrc[] = { { .offset = SRC_MASK_PERIC0, .value = 0x11111110, }, { .offset = SRC_MASK_PERIC1, .value = 0x11111100, }, { .offset = SRC_MASK_ISP, .value = 0x11111000, }, + { .offset = GATE_BUS_TOP, .value = 0xffffffff, }, { .offset = GATE_BUS_DISP1, .value = 0xffffffff, }, { .offset = GATE_IP_PERIC, .value = 0xffffffff, }, }; @@ -503,7 +504,7 @@ static struct samsung_fixed_factor_clock FFACTOR(0, "ff_dout_spll2", "mout_sclk_spll", 1, 2, 0), }; -struct samsung_mux_clock exynos5800_mux_clks[] __initdata = { +static struct samsung_mux_clock exynos5800_mux_clks[] __initdata = { MUX(0, "mout_aclk400_isp", mout_group3_5800_p, SRC_TOP0, 0, 3), MUX(0, "mout_aclk400_mscl", mout_group3_5800_p, SRC_TOP0, 4, 3), MUX(0, "mout_aclk400_wcore", mout_group2_5800_p, SRC_TOP0, 16, 3), @@ -552,7 +553,7 @@ struct samsung_mux_clock exynos5800_mux_clks[] __initdata = { MUX(0, "mout_fimd1", mout_group2_p, SRC_DISP10, 4, 3), }; -struct samsung_div_clock exynos5800_div_clks[] __initdata = { +static struct samsung_div_clock exynos5800_div_clks[] __initdata = { DIV(0, "dout_aclk400_wcore", "mout_aclk400_wcore", DIV_TOP0, 16, 3), DIV(0, "dout_aclk550_cam", "mout_aclk550_cam", @@ -568,14 +569,14 @@ struct samsung_div_clock exynos5800_div_clks[] __initdata = { DIV(0, "dout_sclk_sw", "sclk_spll", DIV_TOP9, 24, 6), }; -struct samsung_gate_clock exynos5800_gate_clks[] __initdata = { +static struct samsung_gate_clock exynos5800_gate_clks[] __initdata = { GATE(CLK_ACLK550_CAM, "aclk550_cam", "mout_user_aclk550_cam", GATE_BUS_TOP, 24, 0, 0), GATE(CLK_ACLK432_SCALER, "aclk432_scaler", "mout_user_aclk432_scaler", GATE_BUS_TOP, 27, 0, 0), }; -struct samsung_mux_clock exynos5420_mux_clks[] __initdata = { +static struct samsung_mux_clock exynos5420_mux_clks[] __initdata = { MUX(0, "sclk_bpll", mout_bpll_p, TOP_SPARE2, 0, 1), MUX(0, "mout_aclk400_wcore_bpll", mout_aclk400_wcore_bpll_p, TOP_SPARE2, 4, 1), @@ -605,7 +606,7 @@ struct samsung_mux_clock exynos5420_mux_clks[] __initdata = { MUX(0, "mout_fimd1", mout_group3_p, SRC_DISP10, 4, 1), }; -struct samsung_div_clock exynos5420_div_clks[] __initdata = { +static struct samsung_div_clock exynos5420_div_clks[] __initdata = { DIV(0, "dout_aclk400_wcore", "mout_aclk400_wcore_bpll", DIV_TOP0, 16, 3), }; diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c index 387e3e39e635..39c95649d3d0 100644 --- a/drivers/clk/samsung/clk-exynos5433.c +++ b/drivers/clk/samsung/clk-exynos5433.c @@ -748,7 +748,7 @@ static struct samsung_pll_rate_table exynos5443_pll_rates[] = { PLL_35XX_RATE(825000000U, 275, 4, 1), PLL_35XX_RATE(800000000U, 400, 6, 1), PLL_35XX_RATE(733000000U, 733, 12, 1), - PLL_35XX_RATE(700000000U, 360, 6, 1), + PLL_35XX_RATE(700000000U, 175, 3, 1), PLL_35XX_RATE(667000000U, 222, 4, 1), PLL_35XX_RATE(633000000U, 211, 4, 1), PLL_35XX_RATE(600000000U, 500, 5, 2), @@ -760,14 +760,14 @@ static struct samsung_pll_rate_table exynos5443_pll_rates[] = { PLL_35XX_RATE(444000000U, 370, 5, 2), PLL_35XX_RATE(420000000U, 350, 5, 2), PLL_35XX_RATE(400000000U, 400, 6, 2), - PLL_35XX_RATE(350000000U, 360, 6, 2), + PLL_35XX_RATE(350000000U, 350, 6, 2), PLL_35XX_RATE(333000000U, 222, 4, 2), PLL_35XX_RATE(300000000U, 500, 5, 3), PLL_35XX_RATE(266000000U, 532, 6, 3), PLL_35XX_RATE(200000000U, 400, 6, 3), PLL_35XX_RATE(166000000U, 332, 6, 3), PLL_35XX_RATE(160000000U, 320, 6, 3), - PLL_35XX_RATE(133000000U, 552, 6, 4), + PLL_35XX_RATE(133000000U, 532, 6, 4), PLL_35XX_RATE(100000000U, 400, 6, 4), { /* sentinel */ } }; @@ -835,6 +835,7 @@ static unsigned long cpif_clk_regs[] __initdata = { MPHY_PLL_CON1, MPHY_PLL_FREQ_DET, MUX_SEL_CPIF0, + DIV_CPIF, ENABLE_SCLK_CPIF, }; @@ -1389,7 +1390,7 @@ static struct samsung_gate_clock mif_gate_clks[] __initdata = { /* ENABLE_ACLK_MIF2 */ GATE(CLK_ACLK_MIFND_266, "aclk_mifnd_266", "div_aclk_mif_266", - ENABLE_ACLK_MIF2, 20, 0, 0), + ENABLE_ACLK_MIF2, 20, CLK_IGNORE_UNUSED, 0), GATE(CLK_ACLK_PPMU_DREX1S3, "aclk_ppmu_drex1s3", "div_aclk_drex1", ENABLE_ACLK_MIF2, 17, CLK_IGNORE_UNUSED, 0), GATE(CLK_ACLK_PPMU_DREX1S1, "aclk_ppmu_drex1s1", "div_aclk_drex1", @@ -1490,7 +1491,7 @@ static struct samsung_gate_clock mif_gate_clks[] __initdata = { /* ENABLE_PCLK_MIF_SECURE_MONOTONIC_CNT */ GATE(CLK_PCLK_MONOTONIC_CNT, "pclk_monotonic_cnt", "div_aclk_mif_133", - ENABLE_PCLK_MIF_SECURE_RTC, 0, 0, 0), + ENABLE_PCLK_MIF_SECURE_MONOTONIC_CNT, 0, 0, 0), /* ENABLE_PCLK_MIF_SECURE_RTC */ GATE(CLK_PCLK_RTC, "pclk_rtc", "div_aclk_mif_133", @@ -1832,39 +1833,39 @@ static struct samsung_gate_clock peris_gate_clks[] __initdata = { /* ENABLE_PCLK_PERIS_SECURE_TZPC */ GATE(CLK_PCLK_TZPC12, "pclk_tzpc12", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 12, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 12, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC11, "pclk_tzpc11", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 11, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 11, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC10, "pclk_tzpc10", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 10, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 10, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC9, "pclk_tzpc9", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 9, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 9, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC8, "pclk_tzpc8", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 8, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 8, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC7, "pclk_tzpc7", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 7, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 7, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC6, "pclk_tzpc6", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 6, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 6, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC5, "pclk_tzpc5", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 5, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 5, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC4, "pclk_tzpc4", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 4, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 4, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC3, "pclk_tzpc3", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 3, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 3, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC2, "pclk_tzpc2", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 2, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 2, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC1, "pclk_tzpc1", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 1, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 1, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_TZPC0, "pclk_tzpc0", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_TZPC, 0, 0, 0), + ENABLE_PCLK_PERIS_SECURE_TZPC, 0, CLK_IGNORE_UNUSED, 0), /* ENABLE_PCLK_PERIS_SECURE_SECKEY_APBIF */ GATE(CLK_PCLK_SECKEY_APBIF, "pclk_seckey_apbif", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_SECKEY_APBIF, 0, 0, 0), + ENABLE_PCLK_PERIS_SECURE_SECKEY_APBIF, 0, CLK_IGNORE_UNUSED, 0), /* ENABLE_PCLK_PERIS_SECURE_CHIPID_APBIF */ GATE(CLK_PCLK_CHIPID_APBIF, "pclk_chipid_apbif", "aclk_peris_66", - ENABLE_PCLK_PERIS_SECURE_CHIPID_APBIF, 0, 0, 0), + ENABLE_PCLK_PERIS_SECURE_CHIPID_APBIF, 0, CLK_IGNORE_UNUSED, 0), /* ENABLE_PCLK_PERIS_SECURE_TOPRTC */ GATE(CLK_PCLK_TOPRTC, "pclk_toprtc", "aclk_peris_66", @@ -1895,11 +1896,11 @@ static struct samsung_gate_clock peris_gate_clks[] __initdata = { /* ENABLE_SCLK_PERIS_SECURE_SECKEY */ GATE(CLK_SCLK_SECKEY, "sclk_seckey", "oscclk_efuse_common", - ENABLE_SCLK_PERIS_SECURE_SECKEY, 0, 0, 0), + ENABLE_SCLK_PERIS_SECURE_SECKEY, 0, CLK_IGNORE_UNUSED, 0), /* ENABLE_SCLK_PERIS_SECURE_CHIPID */ GATE(CLK_SCLK_CHIPID, "sclk_chipid", "oscclk_efuse_common", - ENABLE_SCLK_PERIS_SECURE_CHIPID, 0, 0, 0), + ENABLE_SCLK_PERIS_SECURE_CHIPID, 0, CLK_IGNORE_UNUSED, 0), /* ENABLE_SCLK_PERIS_SECURE_TOPRTC */ GATE(CLK_SCLK_TOPRTC, "sclk_toprtc", "oscclk_efuse_common", @@ -3286,10 +3287,10 @@ static struct samsung_pll_clock g3d_pll_clks[] __initdata = { static struct samsung_mux_clock g3d_mux_clks[] __initdata = { /* MUX_SEL_G3D */ - MUX(CLK_MOUT_ACLK_G3D_400, "mout_aclk_g3d_400", mout_aclk_g3d_400_p, - MUX_SEL_G3D, 8, 1), - MUX(CLK_MOUT_G3D_PLL, "mout_g3d_pll", mout_g3d_pll_p, - MUX_SEL_G3D, 0, 1), + MUX_F(CLK_MOUT_ACLK_G3D_400, "mout_aclk_g3d_400", mout_aclk_g3d_400_p, + MUX_SEL_G3D, 8, 1, CLK_SET_RATE_PARENT, 0), + MUX_F(CLK_MOUT_G3D_PLL, "mout_g3d_pll", mout_g3d_pll_p, + MUX_SEL_G3D, 0, 1, CLK_SET_RATE_PARENT, 0), }; static struct samsung_div_clock g3d_div_clks[] __initdata = { @@ -3298,8 +3299,8 @@ static struct samsung_div_clock g3d_div_clks[] __initdata = { 8, 2), DIV(CLK_DIV_PCLK_G3D, "div_pclk_g3d", "div_aclk_g3d", DIV_G3D, 4, 3), - DIV(CLK_DIV_ACLK_G3D, "div_aclk_g3d", "mout_aclk_g3d_400", DIV_G3D, - 0, 3), + DIV_F(CLK_DIV_ACLK_G3D, "div_aclk_g3d", "mout_aclk_g3d_400", DIV_G3D, + 0, 3, CLK_SET_RATE_PARENT, 0), }; static struct samsung_gate_clock g3d_gate_clks[] __initdata = { @@ -3309,9 +3310,9 @@ static struct samsung_gate_clock g3d_gate_clks[] __initdata = { GATE(CLK_ACLK_BTS_G3D0, "aclk_bts_g3d0", "div_aclk_g3d", ENABLE_ACLK_G3D, 6, 0, 0), GATE(CLK_ACLK_ASYNCAPBS_G3D, "aclk_asyncapbs_g3d", "div_pclk_g3d", - ENABLE_ACLK_G3D, 5, 0, 0), + ENABLE_ACLK_G3D, 5, CLK_IGNORE_UNUSED, 0), GATE(CLK_ACLK_ASYNCAPBM_G3D, "aclk_asyncapbm_g3d", "div_aclk_g3d", - ENABLE_ACLK_G3D, 4, 0, 0), + ENABLE_ACLK_G3D, 4, CLK_IGNORE_UNUSED, 0), GATE(CLK_ACLK_AHB2APB_G3DP, "aclk_ahb2apb_g3dp", "div_pclk_g3d", ENABLE_ACLK_G3D, 3, CLK_IGNORE_UNUSED, 0), GATE(CLK_ACLK_G3DNP_150, "aclk_g3dnp_150", "div_pclk_g3d", @@ -3319,7 +3320,7 @@ static struct samsung_gate_clock g3d_gate_clks[] __initdata = { GATE(CLK_ACLK_G3DND_600, "aclk_g3dnd_600", "div_aclk_g3d", ENABLE_ACLK_G3D, 1, CLK_IGNORE_UNUSED, 0), GATE(CLK_ACLK_G3D, "aclk_g3d", "div_aclk_g3d", - ENABLE_ACLK_G3D, 0, 0, 0), + ENABLE_ACLK_G3D, 0, CLK_SET_RATE_PARENT, 0), /* ENABLE_PCLK_G3D */ GATE(CLK_PCLK_BTS_G3D1, "pclk_bts_g3d1", "div_pclk_g3d", @@ -3582,7 +3583,7 @@ static struct samsung_pll_clock apollo_pll_clks[] __initdata = { static struct samsung_mux_clock apollo_mux_clks[] __initdata = { /* MUX_SEL_APOLLO0 */ MUX_F(CLK_MOUT_APOLLO_PLL, "mout_apollo_pll", mout_apollo_pll_p, - MUX_SEL_APOLLO0, 0, 1, 0, CLK_MUX_READ_ONLY), + MUX_SEL_APOLLO0, 0, 1, CLK_SET_RATE_PARENT, 0), /* MUX_SEL_APOLLO1 */ MUX(CLK_MOUT_BUS_PLL_APOLLO_USER, "mout_bus_pll_apollo_user", @@ -3590,7 +3591,7 @@ static struct samsung_mux_clock apollo_mux_clks[] __initdata = { /* MUX_SEL_APOLLO2 */ MUX_F(CLK_MOUT_APOLLO, "mout_apollo", mout_apollo_p, MUX_SEL_APOLLO2, - 0, 1, 0, CLK_MUX_READ_ONLY), + 0, 1, CLK_SET_RATE_PARENT, 0), }; static struct samsung_div_clock apollo_div_clks[] __initdata = { @@ -3611,11 +3612,9 @@ static struct samsung_div_clock apollo_div_clks[] __initdata = { DIV_APOLLO0, 8, 3, CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), DIV_F(CLK_DIV_APOLLO2, "div_apollo2", "div_apollo1", - DIV_APOLLO0, 4, 3, CLK_GET_RATE_NOCACHE, - CLK_DIVIDER_READ_ONLY), + DIV_APOLLO0, 4, 3, CLK_SET_RATE_PARENT, 0), DIV_F(CLK_DIV_APOLLO1, "div_apollo1", "mout_apollo", - DIV_APOLLO0, 0, 3, CLK_GET_RATE_NOCACHE, - CLK_DIVIDER_READ_ONLY), + DIV_APOLLO0, 0, 3, CLK_SET_RATE_PARENT, 0), /* DIV_APOLLO1 */ DIV_F(CLK_DIV_SCLK_HPM_APOLLO, "div_sclk_hpm_apollo", "mout_apollo", @@ -3665,8 +3664,9 @@ static struct samsung_gate_clock apollo_gate_clks[] __initdata = { ENABLE_SCLK_APOLLO, 3, CLK_IGNORE_UNUSED, 0), GATE(CLK_SCLK_HPM_APOLLO, "sclk_hpm_apollo", "div_sclk_hpm_apollo", ENABLE_SCLK_APOLLO, 1, CLK_IGNORE_UNUSED, 0), - GATE(CLK_SCLK_APOLLO, "sclk_apollo", "div_apollo_pll", - ENABLE_SCLK_APOLLO, 0, CLK_IGNORE_UNUSED, 0), + GATE(CLK_SCLK_APOLLO, "sclk_apollo", "div_apollo2", + ENABLE_SCLK_APOLLO, 0, + CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT, 0), }; static struct samsung_cmu_info apollo_cmu_info __initdata = { @@ -3775,7 +3775,7 @@ static struct samsung_pll_clock atlas_pll_clks[] __initdata = { static struct samsung_mux_clock atlas_mux_clks[] __initdata = { /* MUX_SEL_ATLAS0 */ MUX_F(CLK_MOUT_ATLAS_PLL, "mout_atlas_pll", mout_atlas_pll_p, - MUX_SEL_ATLAS0, 0, 1, 0, CLK_MUX_READ_ONLY), + MUX_SEL_ATLAS0, 0, 1, CLK_SET_RATE_PARENT, 0), /* MUX_SEL_ATLAS1 */ MUX(CLK_MOUT_BUS_PLL_ATLAS_USER, "mout_bus_pll_atlas_user", @@ -3783,7 +3783,7 @@ static struct samsung_mux_clock atlas_mux_clks[] __initdata = { /* MUX_SEL_ATLAS2 */ MUX_F(CLK_MOUT_ATLAS, "mout_atlas", mout_atlas_p, MUX_SEL_ATLAS2, - 0, 1, 0, CLK_MUX_READ_ONLY), + 0, 1, CLK_SET_RATE_PARENT, 0), }; static struct samsung_div_clock atlas_div_clks[] __initdata = { @@ -3804,11 +3804,9 @@ static struct samsung_div_clock atlas_div_clks[] __initdata = { DIV_ATLAS0, 8, 3, CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), DIV_F(CLK_DIV_ATLAS2, "div_atlas2", "div_atlas1", - DIV_ATLAS0, 4, 3, CLK_GET_RATE_NOCACHE, - CLK_DIVIDER_READ_ONLY), + DIV_ATLAS0, 4, 3, CLK_SET_RATE_PARENT, 0), DIV_F(CLK_DIV_ATLAS1, "div_atlas1", "mout_atlas", - DIV_ATLAS0, 0, 3, CLK_GET_RATE_NOCACHE, - CLK_DIVIDER_READ_ONLY), + DIV_ATLAS0, 0, 3, CLK_SET_RATE_PARENT, 0), /* DIV_ATLAS1 */ DIV_F(CLK_DIV_SCLK_HPM_ATLAS, "div_sclk_hpm_atlas", "mout_atlas", @@ -3885,7 +3883,8 @@ static struct samsung_gate_clock atlas_gate_clks[] __initdata = { GATE(CLK_ATCLK, "atclk", "div_atclk_atlas", ENABLE_SCLK_ATLAS, 1, CLK_IGNORE_UNUSED, 0), GATE(CLK_SCLK_ATLAS, "sclk_atlas", "div_atlas2", - ENABLE_SCLK_ATLAS, 0, CLK_IGNORE_UNUSED, 0), + ENABLE_SCLK_ATLAS, 0, + CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT, 0), }; static struct samsung_cmu_info atlas_cmu_info __initdata = { @@ -3927,7 +3926,7 @@ CLK_OF_DECLARE(exynos5433_cmu_atlas, "samsung,exynos5433-cmu-atlas", #define ENABLE_PCLK_MSCL 0x0900 #define ENABLE_PCLK_MSCL_SECURE_SMMU_M2MSCALER0 0x0904 #define ENABLE_PCLK_MSCL_SECURE_SMMU_M2MSCALER1 0x0908 -#define ENABLE_PCLK_MSCL_SECURE_SMMU_JPEG 0x000c +#define ENABLE_PCLK_MSCL_SECURE_SMMU_JPEG 0x090c #define ENABLE_SCLK_MSCL 0x0a00 #define ENABLE_IP_MSCL0 0x0b00 #define ENABLE_IP_MSCL1 0x0b04 diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c index 9d70e5c03804..bebc61b5fce1 100644 --- a/drivers/clk/samsung/clk-pll.c +++ b/drivers/clk/samsung/clk-pll.c @@ -1156,7 +1156,7 @@ static const struct clk_ops samsung_pll2650xx_clk_min_ops = { }; static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx, - struct samsung_pll_clock *pll_clk, + const struct samsung_pll_clock *pll_clk, void __iomem *base) { struct samsung_clk_pll *pll; @@ -1303,7 +1303,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx, } void __init samsung_clk_register_pll(struct samsung_clk_provider *ctx, - struct samsung_pll_clock *pll_list, + const struct samsung_pll_clock *pll_list, unsigned int nr_pll, void __iomem *base) { int cnt; diff --git a/drivers/clk/samsung/clk-s3c2410-dclk.c b/drivers/clk/samsung/clk-s3c2410-dclk.c index f4f29ed6bd25..e56df5064889 100644 --- a/drivers/clk/samsung/clk-s3c2410-dclk.c +++ b/drivers/clk/samsung/clk-s3c2410-dclk.c @@ -81,13 +81,13 @@ static int s3c24xx_clkout_set_parent(struct clk_hw *hw, u8 index) return ret; } -const struct clk_ops s3c24xx_clkout_ops = { +static const struct clk_ops s3c24xx_clkout_ops = { .get_parent = s3c24xx_clkout_get_parent, .set_parent = s3c24xx_clkout_set_parent, .determine_rate = __clk_mux_determine_rate, }; -struct clk *s3c24xx_register_clkout(struct device *dev, const char *name, +static struct clk *s3c24xx_register_clkout(struct device *dev, const char *name, const char **parent_names, u8 num_parents, u8 shift, u32 mask) { @@ -404,7 +404,7 @@ static struct s3c24xx_dclk_drv_data dclk_variants[] = { }, }; -static struct platform_device_id s3c24xx_dclk_driver_ids[] = { +static const struct platform_device_id s3c24xx_dclk_driver_ids[] = { { .name = "s3c2410-dclk", .driver_data = (kernel_ulong_t)&dclk_variants[S3C2410], diff --git a/drivers/clk/samsung/clk-s5pv210.c b/drivers/clk/samsung/clk-s5pv210.c index e668e479a697..cf7e8fa7b624 100644 --- a/drivers/clk/samsung/clk-s5pv210.c +++ b/drivers/clk/samsung/clk-s5pv210.c @@ -169,44 +169,44 @@ static inline void s5pv210_clk_sleep_init(void) { } #endif /* Mux parent lists. */ -static const char *fin_pll_p[] __initdata = { +static const char *const fin_pll_p[] __initconst = { "xxti", "xusbxti" }; -static const char *mout_apll_p[] __initdata = { +static const char *const mout_apll_p[] __initconst = { "fin_pll", "fout_apll" }; -static const char *mout_mpll_p[] __initdata = { +static const char *const mout_mpll_p[] __initconst = { "fin_pll", "fout_mpll" }; -static const char *mout_epll_p[] __initdata = { +static const char *const mout_epll_p[] __initconst = { "fin_pll", "fout_epll" }; -static const char *mout_vpllsrc_p[] __initdata = { +static const char *const mout_vpllsrc_p[] __initconst = { "fin_pll", "sclk_hdmi27m" }; -static const char *mout_vpll_p[] __initdata = { +static const char *const mout_vpll_p[] __initconst = { "mout_vpllsrc", "fout_vpll" }; -static const char *mout_group1_p[] __initdata = { +static const char *const mout_group1_p[] __initconst = { "dout_a2m", "mout_mpll", "mout_epll", "mout_vpll" }; -static const char *mout_group2_p[] __initdata = { +static const char *const mout_group2_p[] __initconst = { "xxti", "xusbxti", "sclk_hdmi27m", @@ -218,7 +218,7 @@ static const char *mout_group2_p[] __initdata = { "mout_vpll", }; -static const char *mout_audio0_p[] __initdata = { +static const char *const mout_audio0_p[] __initconst = { "xxti", "pcmcdclk0", "sclk_hdmi27m", @@ -230,7 +230,7 @@ static const char *mout_audio0_p[] __initdata = { "mout_vpll", }; -static const char *mout_audio1_p[] __initdata = { +static const char *const mout_audio1_p[] __initconst = { "i2scdclk1", "pcmcdclk1", "sclk_hdmi27m", @@ -242,7 +242,7 @@ static const char *mout_audio1_p[] __initdata = { "mout_vpll", }; -static const char *mout_audio2_p[] __initdata = { +static const char *const mout_audio2_p[] __initconst = { "i2scdclk2", "pcmcdclk2", "sclk_hdmi27m", @@ -254,63 +254,63 @@ static const char *mout_audio2_p[] __initdata = { "mout_vpll", }; -static const char *mout_spdif_p[] __initdata = { +static const char *const mout_spdif_p[] __initconst = { "dout_audio0", "dout_audio1", "dout_audio3", }; -static const char *mout_group3_p[] __initdata = { +static const char *const mout_group3_p[] __initconst = { "mout_apll", "mout_mpll" }; -static const char *mout_group4_p[] __initdata = { +static const char *const mout_group4_p[] __initconst = { "mout_mpll", "dout_a2m" }; -static const char *mout_flash_p[] __initdata = { +static const char *const mout_flash_p[] __initconst = { "dout_hclkd", "dout_hclkp" }; -static const char *mout_dac_p[] __initdata = { +static const char *const mout_dac_p[] __initconst = { "mout_vpll", "sclk_hdmiphy" }; -static const char *mout_hdmi_p[] __initdata = { +static const char *const mout_hdmi_p[] __initconst = { "sclk_hdmiphy", "dout_tblk" }; -static const char *mout_mixer_p[] __initdata = { +static const char *const mout_mixer_p[] __initconst = { "mout_dac", "mout_hdmi" }; -static const char *mout_vpll_6442_p[] __initdata = { +static const char *const mout_vpll_6442_p[] __initconst = { "fin_pll", "fout_vpll" }; -static const char *mout_mixer_6442_p[] __initdata = { +static const char *const mout_mixer_6442_p[] __initconst = { "mout_vpll", "dout_mixer" }; -static const char *mout_d0sync_6442_p[] __initdata = { +static const char *const mout_d0sync_6442_p[] __initconst = { "mout_dsys", "div_apll" }; -static const char *mout_d1sync_6442_p[] __initdata = { +static const char *const mout_d1sync_6442_p[] __initconst = { "mout_psys", "div_apll" }; -static const char *mout_group2_6442_p[] __initdata = { +static const char *const mout_group2_6442_p[] __initconst = { "fin_pll", "none", "none", @@ -322,7 +322,7 @@ static const char *mout_group2_6442_p[] __initdata = { "mout_vpll", }; -static const char *mout_audio0_6442_p[] __initdata = { +static const char *const mout_audio0_6442_p[] __initconst = { "fin_pll", "pcmcdclk0", "none", @@ -334,7 +334,7 @@ static const char *mout_audio0_6442_p[] __initdata = { "mout_vpll", }; -static const char *mout_audio1_6442_p[] __initdata = { +static const char *const mout_audio1_6442_p[] __initconst = { "i2scdclk1", "pcmcdclk1", "none", @@ -347,7 +347,7 @@ static const char *mout_audio1_6442_p[] __initdata = { "fin_pll", }; -static const char *mout_clksel_p[] __initdata = { +static const char *const mout_clksel_p[] __initconst = { "fout_apll_clkout", "fout_mpll_clkout", "fout_epll", @@ -370,7 +370,7 @@ static const char *mout_clksel_p[] __initdata = { "div_dclk" }; -static const char *mout_clksel_6442_p[] __initdata = { +static const char *const mout_clksel_6442_p[] __initconst = { "fout_apll_clkout", "fout_mpll_clkout", "fout_epll", @@ -393,7 +393,7 @@ static const char *mout_clksel_6442_p[] __initdata = { "div_dclk" }; -static const char *mout_clkout_p[] __initdata = { +static const char *const mout_clkout_p[] __initconst = { "dout_clkout", "none", "xxti", @@ -401,20 +401,20 @@ static const char *mout_clkout_p[] __initdata = { }; /* Common fixed factor clocks. */ -static struct samsung_fixed_factor_clock ffactor_clks[] __initdata = { +static const struct samsung_fixed_factor_clock ffactor_clks[] __initconst = { FFACTOR(FOUT_APLL_CLKOUT, "fout_apll_clkout", "fout_apll", 1, 4, 0), FFACTOR(FOUT_MPLL_CLKOUT, "fout_mpll_clkout", "fout_mpll", 1, 2, 0), FFACTOR(DOUT_APLL_CLKOUT, "dout_apll_clkout", "dout_apll", 1, 4, 0), }; /* PLL input mux (fin_pll), which needs to be registered before PLLs. */ -static struct samsung_mux_clock early_mux_clks[] __initdata = { +static const struct samsung_mux_clock early_mux_clks[] __initconst = { MUX_F(FIN_PLL, "fin_pll", fin_pll_p, OM_STAT, 0, 1, CLK_MUX_READ_ONLY, 0), }; /* Common clock muxes. */ -static struct samsung_mux_clock mux_clks[] __initdata = { +static const struct samsung_mux_clock mux_clks[] __initconst = { MUX(MOUT_FLASH, "mout_flash", mout_flash_p, CLK_SRC0, 28, 1), MUX(MOUT_PSYS, "mout_psys", mout_group4_p, CLK_SRC0, 24, 1), MUX(MOUT_DSYS, "mout_dsys", mout_group4_p, CLK_SRC0, 20, 1), @@ -427,7 +427,7 @@ static struct samsung_mux_clock mux_clks[] __initdata = { }; /* S5PV210-specific clock muxes. */ -static struct samsung_mux_clock s5pv210_mux_clks[] __initdata = { +static const struct samsung_mux_clock s5pv210_mux_clks[] __initconst = { MUX(MOUT_VPLL, "mout_vpll", mout_vpll_p, CLK_SRC0, 12, 1), MUX(MOUT_VPLLSRC, "mout_vpllsrc", mout_vpllsrc_p, CLK_SRC1, 28, 1), @@ -472,7 +472,7 @@ static struct samsung_mux_clock s5pv210_mux_clks[] __initdata = { }; /* S5P6442-specific clock muxes. */ -static struct samsung_mux_clock s5p6442_mux_clks[] __initdata = { +static const struct samsung_mux_clock s5p6442_mux_clks[] __initconst = { MUX(MOUT_VPLL, "mout_vpll", mout_vpll_6442_p, CLK_SRC0, 12, 1), MUX(MOUT_FIMD, "mout_fimd", mout_group2_6442_p, CLK_SRC1, 20, 4), @@ -504,7 +504,7 @@ static struct samsung_mux_clock s5p6442_mux_clks[] __initdata = { }; /* S5PV210-specific fixed rate clocks generated inside the SoC. */ -static struct samsung_fixed_rate_clock s5pv210_frate_clks[] __initdata = { +static const struct samsung_fixed_rate_clock s5pv210_frate_clks[] __initconst = { FRATE(SCLK_HDMI27M, "sclk_hdmi27m", NULL, CLK_IS_ROOT, 27000000), FRATE(SCLK_HDMIPHY, "sclk_hdmiphy", NULL, CLK_IS_ROOT, 27000000), FRATE(SCLK_USBPHY0, "sclk_usbphy0", NULL, CLK_IS_ROOT, 48000000), @@ -512,12 +512,12 @@ static struct samsung_fixed_rate_clock s5pv210_frate_clks[] __initdata = { }; /* S5P6442-specific fixed rate clocks generated inside the SoC. */ -static struct samsung_fixed_rate_clock s5p6442_frate_clks[] __initdata = { +static const struct samsung_fixed_rate_clock s5p6442_frate_clks[] __initconst = { FRATE(SCLK_USBPHY0, "sclk_usbphy0", NULL, CLK_IS_ROOT, 30000000), }; /* Common clock dividers. */ -static struct samsung_div_clock div_clks[] __initdata = { +static const struct samsung_div_clock div_clks[] __initconst = { DIV(DOUT_PCLKP, "dout_pclkp", "dout_hclkp", CLK_DIV0, 28, 3), DIV(DOUT_PCLKD, "dout_pclkd", "dout_hclkd", CLK_DIV0, 20, 3), DIV(DOUT_A2M, "dout_a2m", "mout_apll", CLK_DIV0, 4, 3), @@ -549,7 +549,7 @@ static struct samsung_div_clock div_clks[] __initdata = { }; /* S5PV210-specific clock dividers. */ -static struct samsung_div_clock s5pv210_div_clks[] __initdata = { +static const struct samsung_div_clock s5pv210_div_clks[] __initconst = { DIV(DOUT_HCLKP, "dout_hclkp", "mout_psys", CLK_DIV0, 24, 4), DIV(DOUT_HCLKD, "dout_hclkd", "mout_dsys", CLK_DIV0, 16, 4), DIV(DOUT_PCLKM, "dout_pclkm", "dout_hclkm", CLK_DIV0, 12, 3), @@ -578,7 +578,7 @@ static struct samsung_div_clock s5pv210_div_clks[] __initdata = { }; /* S5P6442-specific clock dividers. */ -static struct samsung_div_clock s5p6442_div_clks[] __initdata = { +static const struct samsung_div_clock s5p6442_div_clks[] __initconst = { DIV(DOUT_HCLKP, "dout_hclkp", "mout_d1sync", CLK_DIV0, 24, 4), DIV(DOUT_HCLKD, "dout_hclkd", "mout_d0sync", CLK_DIV0, 16, 4), @@ -586,7 +586,7 @@ static struct samsung_div_clock s5p6442_div_clks[] __initdata = { }; /* Common clock gates. */ -static struct samsung_gate_clock gate_clks[] __initdata = { +static const struct samsung_gate_clock gate_clks[] __initconst = { GATE(CLK_ROTATOR, "rotator", "dout_hclkd", CLK_GATE_IP0, 29, 0, 0), GATE(CLK_FIMC2, "fimc2", "dout_hclkd", CLK_GATE_IP0, 26, 0, 0), GATE(CLK_FIMC1, "fimc1", "dout_hclkd", CLK_GATE_IP0, 25, 0, 0), @@ -666,7 +666,7 @@ static struct samsung_gate_clock gate_clks[] __initdata = { }; /* S5PV210-specific clock gates. */ -static struct samsung_gate_clock s5pv210_gate_clks[] __initdata = { +static const struct samsung_gate_clock s5pv210_gate_clks[] __initconst = { GATE(CLK_CSIS, "clk_csis", "dout_hclkd", CLK_GATE_IP0, 31, 0, 0), GATE(CLK_MFC, "mfc", "dout_hclkm", CLK_GATE_IP0, 16, 0, 0), GATE(CLK_G2D, "g2d", "dout_hclkd", CLK_GATE_IP0, 12, 0, 0), @@ -728,7 +728,7 @@ static struct samsung_gate_clock s5pv210_gate_clks[] __initdata = { }; /* S5P6442-specific clock gates. */ -static struct samsung_gate_clock s5p6442_gate_clks[] __initdata = { +static const struct samsung_gate_clock s5p6442_gate_clks[] __initconst = { GATE(CLK_JPEG, "jpeg", "dout_hclkd", CLK_GATE_IP0, 28, 0, 0), GATE(CLK_MFC, "mfc", "dout_hclkd", CLK_GATE_IP0, 16, 0, 0), GATE(CLK_G2D, "g2d", "dout_hclkd", CLK_GATE_IP0, 12, 0, 0), @@ -748,14 +748,14 @@ static struct samsung_gate_clock s5p6442_gate_clks[] __initdata = { * Clock aliases for legacy clkdev look-up. * NOTE: Needed only to support legacy board files. */ -static struct samsung_clock_alias s5pv210_aliases[] = { +static const struct samsung_clock_alias s5pv210_aliases[] __initconst = { ALIAS(DOUT_APLL, NULL, "armclk"), ALIAS(DOUT_HCLKM, NULL, "hclk_msys"), ALIAS(MOUT_DMC0, NULL, "sclk_dmc0"), }; /* S5PV210-specific PLLs. */ -static struct samsung_pll_clock s5pv210_pll_clks[] __initdata = { +static const struct samsung_pll_clock s5pv210_pll_clks[] __initconst = { [apll] = PLL(pll_4508, FOUT_APLL, "fout_apll", "fin_pll", APLL_LOCK, APLL_CON0, NULL), [mpll] = PLL(pll_4502, FOUT_MPLL, "fout_mpll", "fin_pll", @@ -767,7 +767,7 @@ static struct samsung_pll_clock s5pv210_pll_clks[] __initdata = { }; /* S5P6442-specific PLLs. */ -static struct samsung_pll_clock s5p6442_pll_clks[] __initdata = { +static const struct samsung_pll_clock s5p6442_pll_clks[] __initconst = { [apll] = PLL(pll_4502, FOUT_APLL, "fout_apll", "fin_pll", APLL_LOCK, APLL_CON0, NULL), [mpll] = PLL(pll_4502, FOUT_MPLL, "fout_mpll", "fin_pll", diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c index 9e1f88c04fd4..0117238391d6 100644 --- a/drivers/clk/samsung/clk.c +++ b/drivers/clk/samsung/clk.c @@ -98,7 +98,7 @@ void samsung_clk_add_lookup(struct samsung_clk_provider *ctx, struct clk *clk, /* register a list of aliases */ void __init samsung_clk_register_alias(struct samsung_clk_provider *ctx, - struct samsung_clock_alias *list, + const struct samsung_clock_alias *list, unsigned int nr_clk) { struct clk *clk; @@ -132,7 +132,8 @@ void __init samsung_clk_register_alias(struct samsung_clk_provider *ctx, /* register a list of fixed clocks */ void __init samsung_clk_register_fixed_rate(struct samsung_clk_provider *ctx, - struct samsung_fixed_rate_clock *list, unsigned int nr_clk) + const struct samsung_fixed_rate_clock *list, + unsigned int nr_clk) { struct clk *clk; unsigned int idx, ret; @@ -161,7 +162,7 @@ void __init samsung_clk_register_fixed_rate(struct samsung_clk_provider *ctx, /* register a list of fixed factor clocks */ void __init samsung_clk_register_fixed_factor(struct samsung_clk_provider *ctx, - struct samsung_fixed_factor_clock *list, unsigned int nr_clk) + const struct samsung_fixed_factor_clock *list, unsigned int nr_clk) { struct clk *clk; unsigned int idx; @@ -181,7 +182,7 @@ void __init samsung_clk_register_fixed_factor(struct samsung_clk_provider *ctx, /* register a list of mux clocks */ void __init samsung_clk_register_mux(struct samsung_clk_provider *ctx, - struct samsung_mux_clock *list, + const struct samsung_mux_clock *list, unsigned int nr_clk) { struct clk *clk; @@ -213,7 +214,7 @@ void __init samsung_clk_register_mux(struct samsung_clk_provider *ctx, /* register a list of div clocks */ void __init samsung_clk_register_div(struct samsung_clk_provider *ctx, - struct samsung_div_clock *list, + const struct samsung_div_clock *list, unsigned int nr_clk) { struct clk *clk; @@ -252,7 +253,7 @@ void __init samsung_clk_register_div(struct samsung_clk_provider *ctx, /* register a list of gate clocks */ void __init samsung_clk_register_gate(struct samsung_clk_provider *ctx, - struct samsung_gate_clock *list, + const struct samsung_gate_clock *list, unsigned int nr_clk) { struct clk *clk; @@ -389,7 +390,7 @@ struct samsung_clk_provider * __init samsung_cmu_register_one( ctx = samsung_clk_init(np, reg_base, cmu->nr_clk_ids); if (!ctx) { - panic("%s: unable to alllocate ctx\n", __func__); + panic("%s: unable to allocate ctx\n", __func__); return ctx; } diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h index e4c75383cea7..b775fc29caa5 100644 --- a/drivers/clk/samsung/clk.h +++ b/drivers/clk/samsung/clk.h @@ -121,7 +121,7 @@ struct samsung_mux_clock { unsigned int id; const char *dev_name; const char *name; - const char **parent_names; + const char *const *parent_names; u8 num_parents; unsigned long flags; unsigned long offset; @@ -368,28 +368,28 @@ extern void __init samsung_clk_of_register_fixed_ext( extern void samsung_clk_add_lookup(struct samsung_clk_provider *ctx, struct clk *clk, unsigned int id); -extern void samsung_clk_register_alias(struct samsung_clk_provider *ctx, - struct samsung_clock_alias *list, +extern void __init samsung_clk_register_alias(struct samsung_clk_provider *ctx, + const struct samsung_clock_alias *list, unsigned int nr_clk); extern void __init samsung_clk_register_fixed_rate( struct samsung_clk_provider *ctx, - struct samsung_fixed_rate_clock *clk_list, + const struct samsung_fixed_rate_clock *clk_list, unsigned int nr_clk); extern void __init samsung_clk_register_fixed_factor( struct samsung_clk_provider *ctx, - struct samsung_fixed_factor_clock *list, + const struct samsung_fixed_factor_clock *list, unsigned int nr_clk); extern void __init samsung_clk_register_mux(struct samsung_clk_provider *ctx, - struct samsung_mux_clock *clk_list, + const struct samsung_mux_clock *clk_list, unsigned int nr_clk); extern void __init samsung_clk_register_div(struct samsung_clk_provider *ctx, - struct samsung_div_clock *clk_list, + const struct samsung_div_clock *clk_list, unsigned int nr_clk); extern void __init samsung_clk_register_gate(struct samsung_clk_provider *ctx, - struct samsung_gate_clock *clk_list, + const struct samsung_gate_clock *clk_list, unsigned int nr_clk); extern void __init samsung_clk_register_pll(struct samsung_clk_provider *ctx, - struct samsung_pll_clock *pll_list, + const struct samsung_pll_clock *pll_list, unsigned int nr_clk, void __iomem *base); extern struct samsung_clk_provider __init *samsung_cmu_register_one( diff --git a/drivers/clk/shmobile/clk-emev2.c b/drivers/clk/shmobile/clk-emev2.c index 6c7c929c7765..5b60beb7d0eb 100644 --- a/drivers/clk/shmobile/clk-emev2.c +++ b/drivers/clk/shmobile/clk-emev2.c @@ -34,7 +34,7 @@ static DEFINE_SPINLOCK(lock); /* not pretty, but hey */ -void __iomem *smu_base; +static void __iomem *smu_base; static void __init emev2_smu_write(unsigned long value, int offs) { diff --git a/drivers/clk/sirf/Makefile b/drivers/clk/sirf/Makefile index 36b8e203f6e7..09b4210d9124 100644 --- a/drivers/clk/sirf/Makefile +++ b/drivers/clk/sirf/Makefile @@ -2,4 +2,4 @@ # Makefile for sirf specific clk # -obj-$(CONFIG_ARCH_SIRF) += clk-prima2.o clk-atlas6.o +obj-$(CONFIG_ARCH_SIRF) += clk-prima2.o clk-atlas6.o clk-atlas7.o diff --git a/drivers/clk/sirf/clk-atlas7.c b/drivers/clk/sirf/clk-atlas7.c new file mode 100644 index 000000000000..db8ab691dbf6 --- /dev/null +++ b/drivers/clk/sirf/clk-atlas7.c @@ -0,0 +1,1632 @@ +/* + * Clock tree for CSR SiRFAtlas7 + * + * Copyright (c) 2014 Cambridge Silicon Radio Limited, a CSR plc group company. + * + * Licensed under GPLv2 or later. + */ + +#include <linux/bitops.h> +#include <linux/io.h> +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/of_address.h> +#include <linux/reset-controller.h> +#include <linux/slab.h> + +#define SIRFSOC_CLKC_MEMPLL_AB_FREQ 0x0000 +#define SIRFSOC_CLKC_MEMPLL_AB_SSC 0x0004 +#define SIRFSOC_CLKC_MEMPLL_AB_CTRL0 0x0008 +#define SIRFSOC_CLKC_MEMPLL_AB_CTRL1 0x000c +#define SIRFSOC_CLKC_MEMPLL_AB_STATUS 0x0010 +#define SIRFSOC_CLKC_MEMPLL_AB_SSRAM_ADDR 0x0014 +#define SIRFSOC_CLKC_MEMPLL_AB_SSRAM_DATA 0x0018 + +#define SIRFSOC_CLKC_CPUPLL_AB_FREQ 0x001c +#define SIRFSOC_CLKC_CPUPLL_AB_SSC 0x0020 +#define SIRFSOC_CLKC_CPUPLL_AB_CTRL0 0x0024 +#define SIRFSOC_CLKC_CPUPLL_AB_CTRL1 0x0028 +#define SIRFSOC_CLKC_CPUPLL_AB_STATUS 0x002c + +#define SIRFSOC_CLKC_SYS0PLL_AB_FREQ 0x0030 +#define SIRFSOC_CLKC_SYS0PLL_AB_SSC 0x0034 +#define SIRFSOC_CLKC_SYS0PLL_AB_CTRL0 0x0038 +#define SIRFSOC_CLKC_SYS0PLL_AB_CTRL1 0x003c +#define SIRFSOC_CLKC_SYS0PLL_AB_STATUS 0x0040 + +#define SIRFSOC_CLKC_SYS1PLL_AB_FREQ 0x0044 +#define SIRFSOC_CLKC_SYS1PLL_AB_SSC 0x0048 +#define SIRFSOC_CLKC_SYS1PLL_AB_CTRL0 0x004c +#define SIRFSOC_CLKC_SYS1PLL_AB_CTRL1 0x0050 +#define SIRFSOC_CLKC_SYS1PLL_AB_STATUS 0x0054 + +#define SIRFSOC_CLKC_SYS2PLL_AB_FREQ 0x0058 +#define SIRFSOC_CLKC_SYS2PLL_AB_SSC 0x005c +#define SIRFSOC_CLKC_SYS2PLL_AB_CTRL0 0x0060 +#define SIRFSOC_CLKC_SYS2PLL_AB_CTRL1 0x0064 +#define SIRFSOC_CLKC_SYS2PLL_AB_STATUS 0x0068 + +#define SIRFSOC_CLKC_SYS3PLL_AB_FREQ 0x006c +#define SIRFSOC_CLKC_SYS3PLL_AB_SSC 0x0070 +#define SIRFSOC_CLKC_SYS3PLL_AB_CTRL0 0x0074 +#define SIRFSOC_CLKC_SYS3PLL_AB_CTRL1 0x0078 +#define SIRFSOC_CLKC_SYS3PLL_AB_STATUS 0x007c + +#define SIRFSOC_ABPLL_CTRL0_SSEN 0x00001000 +#define SIRFSOC_ABPLL_CTRL0_BYPASS 0x00000010 +#define SIRFSOC_ABPLL_CTRL0_RESET 0x00000001 + +#define SIRFSOC_CLKC_AUDIO_DTO_INC 0x0088 +#define SIRFSOC_CLKC_DISP0_DTO_INC 0x008c +#define SIRFSOC_CLKC_DISP1_DTO_INC 0x0090 + +#define SIRFSOC_CLKC_AUDIO_DTO_SRC 0x0094 +#define SIRFSOC_CLKC_AUDIO_DTO_ENA 0x0098 +#define SIRFSOC_CLKC_AUDIO_DTO_DROFF 0x009c + +#define SIRFSOC_CLKC_DISP0_DTO_SRC 0x00a0 +#define SIRFSOC_CLKC_DISP0_DTO_ENA 0x00a4 +#define SIRFSOC_CLKC_DISP0_DTO_DROFF 0x00a8 + +#define SIRFSOC_CLKC_DISP1_DTO_SRC 0x00ac +#define SIRFSOC_CLKC_DISP1_DTO_ENA 0x00b0 +#define SIRFSOC_CLKC_DISP1_DTO_DROFF 0x00b4 + +#define SIRFSOC_CLKC_I2S_CLK_SEL 0x00b8 +#define SIRFSOC_CLKC_I2S_SEL_STAT 0x00bc + +#define SIRFSOC_CLKC_USBPHY_CLKDIV_CFG 0x00c0 +#define SIRFSOC_CLKC_USBPHY_CLKDIV_ENA 0x00c4 +#define SIRFSOC_CLKC_USBPHY_CLK_SEL 0x00c8 +#define SIRFSOC_CLKC_USBPHY_CLK_SEL_STAT 0x00cc + +#define SIRFSOC_CLKC_BTSS_CLKDIV_CFG 0x00d0 +#define SIRFSOC_CLKC_BTSS_CLKDIV_ENA 0x00d4 +#define SIRFSOC_CLKC_BTSS_CLK_SEL 0x00d8 +#define SIRFSOC_CLKC_BTSS_CLK_SEL_STAT 0x00dc + +#define SIRFSOC_CLKC_RGMII_CLKDIV_CFG 0x00e0 +#define SIRFSOC_CLKC_RGMII_CLKDIV_ENA 0x00e4 +#define SIRFSOC_CLKC_RGMII_CLK_SEL 0x00e8 +#define SIRFSOC_CLKC_RGMII_CLK_SEL_STAT 0x00ec + +#define SIRFSOC_CLKC_CPU_CLKDIV_CFG 0x00f0 +#define SIRFSOC_CLKC_CPU_CLKDIV_ENA 0x00f4 +#define SIRFSOC_CLKC_CPU_CLK_SEL 0x00f8 +#define SIRFSOC_CLKC_CPU_CLK_SEL_STAT 0x00fc + +#define SIRFSOC_CLKC_SDPHY01_CLKDIV_CFG 0x0100 +#define SIRFSOC_CLKC_SDPHY01_CLKDIV_ENA 0x0104 +#define SIRFSOC_CLKC_SDPHY01_CLK_SEL 0x0108 +#define SIRFSOC_CLKC_SDPHY01_CLK_SEL_STAT 0x010c + +#define SIRFSOC_CLKC_SDPHY23_CLKDIV_CFG 0x0110 +#define SIRFSOC_CLKC_SDPHY23_CLKDIV_ENA 0x0114 +#define SIRFSOC_CLKC_SDPHY23_CLK_SEL 0x0118 +#define SIRFSOC_CLKC_SDPHY23_CLK_SEL_STAT 0x011c + +#define SIRFSOC_CLKC_SDPHY45_CLKDIV_CFG 0x0120 +#define SIRFSOC_CLKC_SDPHY45_CLKDIV_ENA 0x0124 +#define SIRFSOC_CLKC_SDPHY45_CLK_SEL 0x0128 +#define SIRFSOC_CLKC_SDPHY45_CLK_SEL_STAT 0x012c + +#define SIRFSOC_CLKC_SDPHY67_CLKDIV_CFG 0x0130 +#define SIRFSOC_CLKC_SDPHY67_CLKDIV_ENA 0x0134 +#define SIRFSOC_CLKC_SDPHY67_CLK_SEL 0x0138 +#define SIRFSOC_CLKC_SDPHY67_CLK_SEL_STAT 0x013c + +#define SIRFSOC_CLKC_CAN_CLKDIV_CFG 0x0140 +#define SIRFSOC_CLKC_CAN_CLKDIV_ENA 0x0144 +#define SIRFSOC_CLKC_CAN_CLK_SEL 0x0148 +#define SIRFSOC_CLKC_CAN_CLK_SEL_STAT 0x014c + +#define SIRFSOC_CLKC_DEINT_CLKDIV_CFG 0x0150 +#define SIRFSOC_CLKC_DEINT_CLKDIV_ENA 0x0154 +#define SIRFSOC_CLKC_DEINT_CLK_SEL 0x0158 +#define SIRFSOC_CLKC_DEINT_CLK_SEL_STAT 0x015c + +#define SIRFSOC_CLKC_NAND_CLKDIV_CFG 0x0160 +#define SIRFSOC_CLKC_NAND_CLKDIV_ENA 0x0164 +#define SIRFSOC_CLKC_NAND_CLK_SEL 0x0168 +#define SIRFSOC_CLKC_NAND_CLK_SEL_STAT 0x016c + +#define SIRFSOC_CLKC_DISP0_CLKDIV_CFG 0x0170 +#define SIRFSOC_CLKC_DISP0_CLKDIV_ENA 0x0174 +#define SIRFSOC_CLKC_DISP0_CLK_SEL 0x0178 +#define SIRFSOC_CLKC_DISP0_CLK_SEL_STAT 0x017c + +#define SIRFSOC_CLKC_DISP1_CLKDIV_CFG 0x0180 +#define SIRFSOC_CLKC_DISP1_CLKDIV_ENA 0x0184 +#define SIRFSOC_CLKC_DISP1_CLK_SEL 0x0188 +#define SIRFSOC_CLKC_DISP1_CLK_SEL_STAT 0x018c + +#define SIRFSOC_CLKC_GPU_CLKDIV_CFG 0x0190 +#define SIRFSOC_CLKC_GPU_CLKDIV_ENA 0x0194 +#define SIRFSOC_CLKC_GPU_CLK_SEL 0x0198 +#define SIRFSOC_CLKC_GPU_CLK_SEL_STAT 0x019c + +#define SIRFSOC_CLKC_GNSS_CLKDIV_CFG 0x01a0 +#define SIRFSOC_CLKC_GNSS_CLKDIV_ENA 0x01a4 +#define SIRFSOC_CLKC_GNSS_CLK_SEL 0x01a8 +#define SIRFSOC_CLKC_GNSS_CLK_SEL_STAT 0x01ac + +#define SIRFSOC_CLKC_SHARED_DIVIDER_CFG0 0x01b0 +#define SIRFSOC_CLKC_SHARED_DIVIDER_CFG1 0x01b4 +#define SIRFSOC_CLKC_SHARED_DIVIDER_ENA 0x01b8 + +#define SIRFSOC_CLKC_SYS_CLK_SEL 0x01bc +#define SIRFSOC_CLKC_SYS_CLK_SEL_STAT 0x01c0 +#define SIRFSOC_CLKC_IO_CLK_SEL 0x01c4 +#define SIRFSOC_CLKC_IO_CLK_SEL_STAT 0x01c8 +#define SIRFSOC_CLKC_G2D_CLK_SEL 0x01cc +#define SIRFSOC_CLKC_G2D_CLK_SEL_STAT 0x01d0 +#define SIRFSOC_CLKC_JPENC_CLK_SEL 0x01d4 +#define SIRFSOC_CLKC_JPENC_CLK_SEL_STAT 0x01d8 +#define SIRFSOC_CLKC_VDEC_CLK_SEL 0x01dc +#define SIRFSOC_CLKC_VDEC_CLK_SEL_STAT 0x01e0 +#define SIRFSOC_CLKC_GMAC_CLK_SEL 0x01e4 +#define SIRFSOC_CLKC_GMAC_CLK_SEL_STAT 0x01e8 +#define SIRFSOC_CLKC_USB_CLK_SEL 0x01ec +#define SIRFSOC_CLKC_USB_CLK_SEL_STAT 0x01f0 +#define SIRFSOC_CLKC_KAS_CLK_SEL 0x01f4 +#define SIRFSOC_CLKC_KAS_CLK_SEL_STAT 0x01f8 +#define SIRFSOC_CLKC_SEC_CLK_SEL 0x01fc +#define SIRFSOC_CLKC_SEC_CLK_SEL_STAT 0x0200 +#define SIRFSOC_CLKC_SDR_CLK_SEL 0x0204 +#define SIRFSOC_CLKC_SDR_CLK_SEL_STAT 0x0208 +#define SIRFSOC_CLKC_VIP_CLK_SEL 0x020c +#define SIRFSOC_CLKC_VIP_CLK_SEL_STAT 0x0210 +#define SIRFSOC_CLKC_NOCD_CLK_SEL 0x0214 +#define SIRFSOC_CLKC_NOCD_CLK_SEL_STAT 0x0218 +#define SIRFSOC_CLKC_NOCR_CLK_SEL 0x021c +#define SIRFSOC_CLKC_NOCR_CLK_SEL_STAT 0x0220 +#define SIRFSOC_CLKC_TPIU_CLK_SEL 0x0224 +#define SIRFSOC_CLKC_TPIU_CLK_SEL_STAT 0x0228 + +#define SIRFSOC_CLKC_ROOT_CLK_EN0_SET 0x022c +#define SIRFSOC_CLKC_ROOT_CLK_EN0_CLR 0x0230 +#define SIRFSOC_CLKC_ROOT_CLK_EN0_STAT 0x0234 +#define SIRFSOC_CLKC_ROOT_CLK_EN1_SET 0x0238 +#define SIRFSOC_CLKC_ROOT_CLK_EN1_CLR 0x023c +#define SIRFSOC_CLKC_ROOT_CLK_EN1_STAT 0x0240 + +#define SIRFSOC_CLKC_LEAF_CLK_EN0_SET 0x0244 +#define SIRFSOC_CLKC_LEAF_CLK_EN0_CLR 0x0248 +#define SIRFSOC_CLKC_LEAF_CLK_EN0_STAT 0x024c + +#define SIRFSOC_CLKC_RSTC_A7_SW_RST 0x0308 + +#define SIRFSOC_CLKC_LEAF_CLK_EN1_SET 0x04a0 +#define SIRFSOC_CLKC_LEAF_CLK_EN2_SET 0x04b8 +#define SIRFSOC_CLKC_LEAF_CLK_EN3_SET 0x04d0 +#define SIRFSOC_CLKC_LEAF_CLK_EN4_SET 0x04e8 +#define SIRFSOC_CLKC_LEAF_CLK_EN5_SET 0x0500 +#define SIRFSOC_CLKC_LEAF_CLK_EN6_SET 0x0518 +#define SIRFSOC_CLKC_LEAF_CLK_EN7_SET 0x0530 +#define SIRFSOC_CLKC_LEAF_CLK_EN8_SET 0x0548 + + +static void __iomem *sirfsoc_clk_vbase; +static struct clk_onecell_data clk_data; + +static const struct clk_div_table pll_div_table[] = { + { .val = 0, .div = 1 }, + { .val = 1, .div = 2 }, + { .val = 2, .div = 4 }, + { .val = 3, .div = 8 }, + { .val = 4, .div = 16 }, + { .val = 5, .div = 32 }, +}; + +struct clk_pll { + struct clk_hw hw; + u16 regofs; /* register offset */ +}; +#define to_pllclk(_hw) container_of(_hw, struct clk_pll, hw) + +struct clk_dto { + struct clk_hw hw; + u16 inc_offset; /* dto increment offset */ + u16 src_offset; /* dto src offset */ +}; +#define to_dtoclk(_hw) container_of(_hw, struct clk_dto, hw) + +struct clk_unit { + struct clk_hw hw; + u16 regofs; + u16 bit; + spinlock_t *lock; +}; +#define to_unitclk(_hw) container_of(_hw, struct clk_unit, hw) + +struct atlas7_div_init_data { + const char *div_name; + const char *parent_name; + const char *gate_name; + unsigned long flags; + u8 divider_flags; + u8 gate_flags; + u32 div_offset; + u8 shift; + u8 width; + u32 gate_offset; + u8 gate_bit; + spinlock_t *lock; +}; + +struct atlas7_mux_init_data { + const char *mux_name; + const char * const *parent_names; + u8 parent_num; + unsigned long flags; + u8 mux_flags; + u32 mux_offset; + u8 shift; + u8 width; +}; + +struct atlas7_unit_init_data { + u32 index; + const char *unit_name; + const char *parent_name; + unsigned long flags; + u32 regofs; + u8 bit; + spinlock_t *lock; +}; + +struct atlas7_reset_desc { + const char *name; + u32 clk_ofs; + u8 clk_bit; + u32 rst_ofs; + u8 rst_bit; + spinlock_t *lock; +}; + +static DEFINE_SPINLOCK(cpupll_ctrl1_lock); +static DEFINE_SPINLOCK(mempll_ctrl1_lock); +static DEFINE_SPINLOCK(sys0pll_ctrl1_lock); +static DEFINE_SPINLOCK(sys1pll_ctrl1_lock); +static DEFINE_SPINLOCK(sys2pll_ctrl1_lock); +static DEFINE_SPINLOCK(sys3pll_ctrl1_lock); +static DEFINE_SPINLOCK(usbphy_div_lock); +static DEFINE_SPINLOCK(btss_div_lock); +static DEFINE_SPINLOCK(rgmii_div_lock); +static DEFINE_SPINLOCK(cpu_div_lock); +static DEFINE_SPINLOCK(sdphy01_div_lock); +static DEFINE_SPINLOCK(sdphy23_div_lock); +static DEFINE_SPINLOCK(sdphy45_div_lock); +static DEFINE_SPINLOCK(sdphy67_div_lock); +static DEFINE_SPINLOCK(can_div_lock); +static DEFINE_SPINLOCK(deint_div_lock); +static DEFINE_SPINLOCK(nand_div_lock); +static DEFINE_SPINLOCK(disp0_div_lock); +static DEFINE_SPINLOCK(disp1_div_lock); +static DEFINE_SPINLOCK(gpu_div_lock); +static DEFINE_SPINLOCK(gnss_div_lock); +/* gate register shared */ +static DEFINE_SPINLOCK(share_div_lock); +static DEFINE_SPINLOCK(root0_gate_lock); +static DEFINE_SPINLOCK(root1_gate_lock); +static DEFINE_SPINLOCK(leaf0_gate_lock); +static DEFINE_SPINLOCK(leaf1_gate_lock); +static DEFINE_SPINLOCK(leaf2_gate_lock); +static DEFINE_SPINLOCK(leaf3_gate_lock); +static DEFINE_SPINLOCK(leaf4_gate_lock); +static DEFINE_SPINLOCK(leaf5_gate_lock); +static DEFINE_SPINLOCK(leaf6_gate_lock); +static DEFINE_SPINLOCK(leaf7_gate_lock); +static DEFINE_SPINLOCK(leaf8_gate_lock); + +static inline unsigned long clkc_readl(unsigned reg) +{ + return readl(sirfsoc_clk_vbase + reg); +} + +static inline void clkc_writel(u32 val, unsigned reg) +{ + writel(val, sirfsoc_clk_vbase + reg); +} + +/* +* ABPLL +* integer mode: Fvco = Fin * 2 * NF / NR +* Spread Spectrum mode: Fvco = Fin * SSN / NR +* SSN = 2^24 / (256 * ((ssdiv >> ssdepth) << ssdepth) + (ssmod << ssdepth)) +*/ +static unsigned long pll_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + unsigned long fin = parent_rate; + struct clk_pll *clk = to_pllclk(hw); + u64 rate; + u32 regctrl0 = clkc_readl(clk->regofs + SIRFSOC_CLKC_MEMPLL_AB_CTRL0 - + SIRFSOC_CLKC_MEMPLL_AB_FREQ); + u32 regfreq = clkc_readl(clk->regofs); + u32 regssc = clkc_readl(clk->regofs + SIRFSOC_CLKC_MEMPLL_AB_SSC - + SIRFSOC_CLKC_MEMPLL_AB_FREQ); + u32 nr = (regfreq >> 16 & (BIT(3) - 1)) + 1; + u32 nf = (regfreq & (BIT(9) - 1)) + 1; + u32 ssdiv = regssc >> 8 & (BIT(12) - 1); + u32 ssdepth = regssc >> 20 & (BIT(2) - 1); + u32 ssmod = regssc & (BIT(8) - 1); + + if (regctrl0 & SIRFSOC_ABPLL_CTRL0_BYPASS) + return fin; + + if (regctrl0 & SIRFSOC_ABPLL_CTRL0_SSEN) { + rate = fin; + rate *= 1 << 24; + do_div(rate, (256 * ((ssdiv >> ssdepth) << ssdepth) + + (ssmod << ssdepth))); + } else { + rate = 2 * fin; + rate *= nf; + do_div(rate, nr); + } + return rate; +} + +static const struct clk_ops ab_pll_ops = { + .recalc_rate = pll_clk_recalc_rate, +}; + +static const char * const pll_clk_parents[] = { + "xin", +}; + +static struct clk_init_data clk_cpupll_init = { + .name = "cpupll_vco", + .ops = &ab_pll_ops, + .parent_names = pll_clk_parents, + .num_parents = ARRAY_SIZE(pll_clk_parents), +}; + +static struct clk_pll clk_cpupll = { + .regofs = SIRFSOC_CLKC_CPUPLL_AB_FREQ, + .hw = { + .init = &clk_cpupll_init, + }, +}; + +static struct clk_init_data clk_mempll_init = { + .name = "mempll_vco", + .ops = &ab_pll_ops, + .parent_names = pll_clk_parents, + .num_parents = ARRAY_SIZE(pll_clk_parents), +}; + +static struct clk_pll clk_mempll = { + .regofs = SIRFSOC_CLKC_MEMPLL_AB_FREQ, + .hw = { + .init = &clk_mempll_init, + }, +}; + +static struct clk_init_data clk_sys0pll_init = { + .name = "sys0pll_vco", + .ops = &ab_pll_ops, + .parent_names = pll_clk_parents, + .num_parents = ARRAY_SIZE(pll_clk_parents), +}; + +static struct clk_pll clk_sys0pll = { + .regofs = SIRFSOC_CLKC_SYS0PLL_AB_FREQ, + .hw = { + .init = &clk_sys0pll_init, + }, +}; + +static struct clk_init_data clk_sys1pll_init = { + .name = "sys1pll_vco", + .ops = &ab_pll_ops, + .parent_names = pll_clk_parents, + .num_parents = ARRAY_SIZE(pll_clk_parents), +}; + +static struct clk_pll clk_sys1pll = { + .regofs = SIRFSOC_CLKC_SYS1PLL_AB_FREQ, + .hw = { + .init = &clk_sys1pll_init, + }, +}; + +static struct clk_init_data clk_sys2pll_init = { + .name = "sys2pll_vco", + .ops = &ab_pll_ops, + .parent_names = pll_clk_parents, + .num_parents = ARRAY_SIZE(pll_clk_parents), +}; + +static struct clk_pll clk_sys2pll = { + .regofs = SIRFSOC_CLKC_SYS2PLL_AB_FREQ, + .hw = { + .init = &clk_sys2pll_init, + }, +}; + +static struct clk_init_data clk_sys3pll_init = { + .name = "sys3pll_vco", + .ops = &ab_pll_ops, + .parent_names = pll_clk_parents, + .num_parents = ARRAY_SIZE(pll_clk_parents), +}; + +static struct clk_pll clk_sys3pll = { + .regofs = SIRFSOC_CLKC_SYS3PLL_AB_FREQ, + .hw = { + .init = &clk_sys3pll_init, + }, +}; + +/* + * DTO in clkc, default enable double resolution mode + * double resolution mode:fout = fin * finc / 2^29 + * normal mode:fout = fin * finc / 2^28 + */ +static int dto_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_dto *clk = to_dtoclk(hw); + int reg; + + reg = clk->src_offset + SIRFSOC_CLKC_AUDIO_DTO_ENA - SIRFSOC_CLKC_AUDIO_DTO_SRC; + + return !!(clkc_readl(reg) & BIT(0)); +} + +static int dto_clk_enable(struct clk_hw *hw) +{ + u32 val, reg; + struct clk_dto *clk = to_dtoclk(hw); + + reg = clk->src_offset + SIRFSOC_CLKC_AUDIO_DTO_ENA - SIRFSOC_CLKC_AUDIO_DTO_SRC; + + val = clkc_readl(reg) | BIT(0); + clkc_writel(val, reg); + return 0; +} + +static void dto_clk_disable(struct clk_hw *hw) +{ + u32 val, reg; + struct clk_dto *clk = to_dtoclk(hw); + + reg = clk->src_offset + SIRFSOC_CLKC_AUDIO_DTO_ENA - SIRFSOC_CLKC_AUDIO_DTO_SRC; + + val = clkc_readl(reg) & ~BIT(0); + clkc_writel(val, reg); +} + +static unsigned long dto_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + u64 rate = parent_rate; + struct clk_dto *clk = to_dtoclk(hw); + u32 finc = clkc_readl(clk->inc_offset); + u32 droff = clkc_readl(clk->src_offset + SIRFSOC_CLKC_AUDIO_DTO_DROFF - SIRFSOC_CLKC_AUDIO_DTO_SRC); + + rate *= finc; + if (droff & BIT(0)) + /* Double resolution off */ + do_div(rate, 1 << 28); + else + do_div(rate, 1 << 29); + + return rate; +} + +static long dto_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + u64 dividend = rate * (1 << 29); + + do_div(dividend, *parent_rate); + dividend *= *parent_rate; + do_div(dividend, 1 << 29); + + return dividend; +} + +static int dto_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + u64 dividend = rate * (1 << 29); + struct clk_dto *clk = to_dtoclk(hw); + + do_div(dividend, parent_rate); + clkc_writel(0, clk->src_offset + SIRFSOC_CLKC_AUDIO_DTO_DROFF - SIRFSOC_CLKC_AUDIO_DTO_SRC); + clkc_writel(dividend, clk->inc_offset); + + return 0; +} + +static u8 dto_clk_get_parent(struct clk_hw *hw) +{ + struct clk_dto *clk = to_dtoclk(hw); + + return clkc_readl(clk->src_offset); +} + +/* + * dto need CLK_SET_PARENT_GATE + */ +static int dto_clk_set_parent(struct clk_hw *hw, u8 index) +{ + struct clk_dto *clk = to_dtoclk(hw); + + clkc_writel(index, clk->src_offset); + return 0; +} + +static const struct clk_ops dto_ops = { + .is_enabled = dto_clk_is_enabled, + .enable = dto_clk_enable, + .disable = dto_clk_disable, + .recalc_rate = dto_clk_recalc_rate, + .round_rate = dto_clk_round_rate, + .set_rate = dto_clk_set_rate, + .get_parent = dto_clk_get_parent, + .set_parent = dto_clk_set_parent, +}; + +/* dto parent clock as syspllvco/clk1 */ +static const char * const audiodto_clk_parents[] = { + "sys0pll_clk1", + "sys1pll_clk1", + "sys3pll_clk1", +}; + +static struct clk_init_data clk_audiodto_init = { + .name = "audio_dto", + .ops = &dto_ops, + .parent_names = audiodto_clk_parents, + .num_parents = ARRAY_SIZE(audiodto_clk_parents), +}; + +static struct clk_dto clk_audio_dto = { + .inc_offset = SIRFSOC_CLKC_AUDIO_DTO_INC, + .src_offset = SIRFSOC_CLKC_AUDIO_DTO_SRC, + .hw = { + .init = &clk_audiodto_init, + }, +}; + +static const char * const disp0dto_clk_parents[] = { + "sys0pll_clk1", + "sys1pll_clk1", + "sys3pll_clk1", +}; + +static struct clk_init_data clk_disp0dto_init = { + .name = "disp0_dto", + .ops = &dto_ops, + .parent_names = disp0dto_clk_parents, + .num_parents = ARRAY_SIZE(disp0dto_clk_parents), +}; + +static struct clk_dto clk_disp0_dto = { + .inc_offset = SIRFSOC_CLKC_DISP0_DTO_INC, + .src_offset = SIRFSOC_CLKC_DISP0_DTO_SRC, + .hw = { + .init = &clk_disp0dto_init, + }, +}; + +static const char * const disp1dto_clk_parents[] = { + "sys0pll_clk1", + "sys1pll_clk1", + "sys3pll_clk1", +}; + +static struct clk_init_data clk_disp1dto_init = { + .name = "disp1_dto", + .ops = &dto_ops, + .parent_names = disp1dto_clk_parents, + .num_parents = ARRAY_SIZE(disp1dto_clk_parents), +}; + +static struct clk_dto clk_disp1_dto = { + .inc_offset = SIRFSOC_CLKC_DISP1_DTO_INC, + .src_offset = SIRFSOC_CLKC_DISP1_DTO_SRC, + .hw = { + .init = &clk_disp1dto_init, + }, +}; + +static struct atlas7_div_init_data divider_list[] __initdata = { + /* div_name, parent_name, gate_name, clk_flag, divider_flag, gate_flag, div_offset, shift, wdith, gate_offset, bit_enable, lock */ + { "sys0pll_qa1", "sys0pll_fixdiv", "sys0pll_a1", 0, 0, 0, SIRFSOC_CLKC_USBPHY_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_USBPHY_CLKDIV_ENA, 0, &usbphy_div_lock }, + { "sys1pll_qa1", "sys1pll_fixdiv", "sys1pll_a1", 0, 0, 0, SIRFSOC_CLKC_USBPHY_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_USBPHY_CLKDIV_ENA, 4, &usbphy_div_lock }, + { "sys2pll_qa1", "sys2pll_fixdiv", "sys2pll_a1", 0, 0, 0, SIRFSOC_CLKC_USBPHY_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_USBPHY_CLKDIV_ENA, 8, &usbphy_div_lock }, + { "sys3pll_qa1", "sys3pll_fixdiv", "sys3pll_a1", 0, 0, 0, SIRFSOC_CLKC_USBPHY_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_USBPHY_CLKDIV_ENA, 12, &usbphy_div_lock }, + { "sys0pll_qa2", "sys0pll_fixdiv", "sys0pll_a2", 0, 0, 0, SIRFSOC_CLKC_BTSS_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_BTSS_CLKDIV_ENA, 0, &btss_div_lock }, + { "sys1pll_qa2", "sys1pll_fixdiv", "sys1pll_a2", 0, 0, 0, SIRFSOC_CLKC_BTSS_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_BTSS_CLKDIV_ENA, 4, &btss_div_lock }, + { "sys2pll_qa2", "sys2pll_fixdiv", "sys2pll_a2", 0, 0, 0, SIRFSOC_CLKC_BTSS_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_BTSS_CLKDIV_ENA, 8, &btss_div_lock }, + { "sys3pll_qa2", "sys3pll_fixdiv", "sys3pll_a2", 0, 0, 0, SIRFSOC_CLKC_BTSS_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_BTSS_CLKDIV_ENA, 12, &btss_div_lock }, + { "sys0pll_qa3", "sys0pll_fixdiv", "sys0pll_a3", 0, 0, 0, SIRFSOC_CLKC_RGMII_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_RGMII_CLKDIV_ENA, 0, &rgmii_div_lock }, + { "sys1pll_qa3", "sys1pll_fixdiv", "sys1pll_a3", 0, 0, 0, SIRFSOC_CLKC_RGMII_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_RGMII_CLKDIV_ENA, 4, &rgmii_div_lock }, + { "sys2pll_qa3", "sys2pll_fixdiv", "sys2pll_a3", 0, 0, 0, SIRFSOC_CLKC_RGMII_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_RGMII_CLKDIV_ENA, 8, &rgmii_div_lock }, + { "sys3pll_qa3", "sys3pll_fixdiv", "sys3pll_a3", 0, 0, 0, SIRFSOC_CLKC_RGMII_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_RGMII_CLKDIV_ENA, 12, &rgmii_div_lock }, + { "sys0pll_qa4", "sys0pll_fixdiv", "sys0pll_a4", 0, 0, 0, SIRFSOC_CLKC_CPU_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_CPU_CLKDIV_ENA, 0, &cpu_div_lock }, + { "sys1pll_qa4", "sys1pll_fixdiv", "sys1pll_a4", 0, 0, CLK_IGNORE_UNUSED, SIRFSOC_CLKC_CPU_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_CPU_CLKDIV_ENA, 4, &cpu_div_lock }, + { "sys0pll_qa5", "sys0pll_fixdiv", "sys0pll_a5", 0, 0, 0, SIRFSOC_CLKC_SDPHY01_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_SDPHY01_CLKDIV_ENA, 0, &sdphy01_div_lock }, + { "sys1pll_qa5", "sys1pll_fixdiv", "sys1pll_a5", 0, 0, 0, SIRFSOC_CLKC_SDPHY01_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_SDPHY01_CLKDIV_ENA, 4, &sdphy01_div_lock }, + { "sys2pll_qa5", "sys2pll_fixdiv", "sys2pll_a5", 0, 0, 0, SIRFSOC_CLKC_SDPHY01_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_SDPHY01_CLKDIV_ENA, 8, &sdphy01_div_lock }, + { "sys3pll_qa5", "sys3pll_fixdiv", "sys3pll_a5", 0, 0, 0, SIRFSOC_CLKC_SDPHY01_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_SDPHY01_CLKDIV_ENA, 12, &sdphy01_div_lock }, + { "sys0pll_qa6", "sys0pll_fixdiv", "sys0pll_a6", 0, 0, 0, SIRFSOC_CLKC_SDPHY23_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_SDPHY23_CLKDIV_ENA, 0, &sdphy23_div_lock }, + { "sys1pll_qa6", "sys1pll_fixdiv", "sys1pll_a6", 0, 0, 0, SIRFSOC_CLKC_SDPHY23_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_SDPHY23_CLKDIV_ENA, 4, &sdphy23_div_lock }, + { "sys2pll_qa6", "sys2pll_fixdiv", "sys2pll_a6", 0, 0, 0, SIRFSOC_CLKC_SDPHY23_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_SDPHY23_CLKDIV_ENA, 8, &sdphy23_div_lock }, + { "sys3pll_qa6", "sys3pll_fixdiv", "sys3pll_a6", 0, 0, 0, SIRFSOC_CLKC_SDPHY23_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_SDPHY23_CLKDIV_ENA, 12, &sdphy23_div_lock }, + { "sys0pll_qa7", "sys0pll_fixdiv", "sys0pll_a7", 0, 0, 0, SIRFSOC_CLKC_SDPHY45_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_SDPHY45_CLKDIV_ENA, 0, &sdphy45_div_lock }, + { "sys1pll_qa7", "sys1pll_fixdiv", "sys1pll_a7", 0, 0, 0, SIRFSOC_CLKC_SDPHY45_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_SDPHY45_CLKDIV_ENA, 4, &sdphy45_div_lock }, + { "sys2pll_qa7", "sys2pll_fixdiv", "sys2pll_a7", 0, 0, 0, SIRFSOC_CLKC_SDPHY45_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_SDPHY45_CLKDIV_ENA, 8, &sdphy45_div_lock }, + { "sys3pll_qa7", "sys3pll_fixdiv", "sys3pll_a7", 0, 0, 0, SIRFSOC_CLKC_SDPHY45_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_SDPHY45_CLKDIV_ENA, 12, &sdphy45_div_lock }, + { "sys0pll_qa8", "sys0pll_fixdiv", "sys0pll_a8", 0, 0, 0, SIRFSOC_CLKC_SDPHY67_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_SDPHY67_CLKDIV_ENA, 0, &sdphy67_div_lock }, + { "sys1pll_qa8", "sys1pll_fixdiv", "sys1pll_a8", 0, 0, 0, SIRFSOC_CLKC_SDPHY67_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_SDPHY67_CLKDIV_ENA, 4, &sdphy67_div_lock }, + { "sys2pll_qa8", "sys2pll_fixdiv", "sys2pll_a8", 0, 0, 0, SIRFSOC_CLKC_SDPHY67_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_SDPHY67_CLKDIV_ENA, 8, &sdphy67_div_lock }, + { "sys3pll_qa8", "sys3pll_fixdiv", "sys3pll_a8", 0, 0, 0, SIRFSOC_CLKC_SDPHY67_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_SDPHY67_CLKDIV_ENA, 12, &sdphy67_div_lock }, + { "sys0pll_qa9", "sys0pll_fixdiv", "sys0pll_a9", 0, 0, 0, SIRFSOC_CLKC_CAN_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_CAN_CLKDIV_ENA, 0, &can_div_lock }, + { "sys1pll_qa9", "sys1pll_fixdiv", "sys1pll_a9", 0, 0, 0, SIRFSOC_CLKC_CAN_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_CAN_CLKDIV_ENA, 4, &can_div_lock }, + { "sys2pll_qa9", "sys2pll_fixdiv", "sys2pll_a9", 0, 0, 0, SIRFSOC_CLKC_CAN_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_CAN_CLKDIV_ENA, 8, &can_div_lock }, + { "sys3pll_qa9", "sys3pll_fixdiv", "sys3pll_a9", 0, 0, 0, SIRFSOC_CLKC_CAN_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_CAN_CLKDIV_ENA, 12, &can_div_lock }, + { "sys0pll_qa10", "sys0pll_fixdiv", "sys0pll_a10", 0, 0, 0, SIRFSOC_CLKC_DEINT_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_DEINT_CLKDIV_ENA, 0, &deint_div_lock }, + { "sys1pll_qa10", "sys1pll_fixdiv", "sys1pll_a10", 0, 0, 0, SIRFSOC_CLKC_DEINT_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_DEINT_CLKDIV_ENA, 4, &deint_div_lock }, + { "sys2pll_qa10", "sys2pll_fixdiv", "sys2pll_a10", 0, 0, 0, SIRFSOC_CLKC_DEINT_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_DEINT_CLKDIV_ENA, 8, &deint_div_lock }, + { "sys3pll_qa10", "sys3pll_fixdiv", "sys3pll_a10", 0, 0, 0, SIRFSOC_CLKC_DEINT_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_DEINT_CLKDIV_ENA, 12, &deint_div_lock }, + { "sys0pll_qa11", "sys0pll_fixdiv", "sys0pll_a11", 0, 0, 0, SIRFSOC_CLKC_NAND_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_NAND_CLKDIV_ENA, 0, &nand_div_lock }, + { "sys1pll_qa11", "sys1pll_fixdiv", "sys1pll_a11", 0, 0, 0, SIRFSOC_CLKC_NAND_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_NAND_CLKDIV_ENA, 4, &nand_div_lock }, + { "sys2pll_qa11", "sys2pll_fixdiv", "sys2pll_a11", 0, 0, 0, SIRFSOC_CLKC_NAND_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_NAND_CLKDIV_ENA, 8, &nand_div_lock }, + { "sys3pll_qa11", "sys3pll_fixdiv", "sys3pll_a11", 0, 0, 0, SIRFSOC_CLKC_NAND_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_NAND_CLKDIV_ENA, 12, &nand_div_lock }, + { "sys0pll_qa12", "sys0pll_fixdiv", "sys0pll_a12", 0, 0, 0, SIRFSOC_CLKC_DISP0_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_DISP0_CLKDIV_ENA, 0, &disp0_div_lock }, + { "sys1pll_qa12", "sys1pll_fixdiv", "sys1pll_a12", 0, 0, 0, SIRFSOC_CLKC_DISP0_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_DISP0_CLKDIV_ENA, 4, &disp0_div_lock }, + { "sys2pll_qa12", "sys2pll_fixdiv", "sys2pll_a12", 0, 0, 0, SIRFSOC_CLKC_DISP0_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_DISP0_CLKDIV_ENA, 8, &disp0_div_lock }, + { "sys3pll_qa12", "sys3pll_fixdiv", "sys3pll_a12", 0, 0, 0, SIRFSOC_CLKC_DISP0_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_DISP0_CLKDIV_ENA, 12, &disp0_div_lock }, + { "sys0pll_qa13", "sys0pll_fixdiv", "sys0pll_a13", 0, 0, 0, SIRFSOC_CLKC_DISP1_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_DISP1_CLKDIV_ENA, 0, &disp1_div_lock }, + { "sys1pll_qa13", "sys1pll_fixdiv", "sys1pll_a13", 0, 0, 0, SIRFSOC_CLKC_DISP1_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_DISP1_CLKDIV_ENA, 4, &disp1_div_lock }, + { "sys2pll_qa13", "sys2pll_fixdiv", "sys2pll_a13", 0, 0, 0, SIRFSOC_CLKC_DISP1_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_DISP1_CLKDIV_ENA, 8, &disp1_div_lock }, + { "sys3pll_qa13", "sys3pll_fixdiv", "sys3pll_a13", 0, 0, 0, SIRFSOC_CLKC_DISP1_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_DISP1_CLKDIV_ENA, 12, &disp1_div_lock }, + { "sys0pll_qa14", "sys0pll_fixdiv", "sys0pll_a14", 0, 0, 0, SIRFSOC_CLKC_GPU_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_GPU_CLKDIV_ENA, 0, &gpu_div_lock }, + { "sys1pll_qa14", "sys1pll_fixdiv", "sys1pll_a14", 0, 0, 0, SIRFSOC_CLKC_GPU_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_GPU_CLKDIV_ENA, 4, &gpu_div_lock }, + { "sys2pll_qa14", "sys2pll_fixdiv", "sys2pll_a14", 0, 0, 0, SIRFSOC_CLKC_GPU_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_GPU_CLKDIV_ENA, 8, &gpu_div_lock }, + { "sys3pll_qa14", "sys3pll_fixdiv", "sys3pll_a14", 0, 0, 0, SIRFSOC_CLKC_GPU_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_GPU_CLKDIV_ENA, 12, &gpu_div_lock }, + { "sys0pll_qa15", "sys0pll_fixdiv", "sys0pll_a15", 0, 0, 0, SIRFSOC_CLKC_GNSS_CLKDIV_CFG, 0, 6, SIRFSOC_CLKC_GNSS_CLKDIV_ENA, 0, &gnss_div_lock }, + { "sys1pll_qa15", "sys1pll_fixdiv", "sys1pll_a15", 0, 0, 0, SIRFSOC_CLKC_GNSS_CLKDIV_CFG, 8, 6, SIRFSOC_CLKC_GNSS_CLKDIV_ENA, 4, &gnss_div_lock }, + { "sys2pll_qa15", "sys2pll_fixdiv", "sys2pll_a15", 0, 0, 0, SIRFSOC_CLKC_GNSS_CLKDIV_CFG, 16, 6, SIRFSOC_CLKC_GNSS_CLKDIV_ENA, 8, &gnss_div_lock }, + { "sys3pll_qa15", "sys3pll_fixdiv", "sys3pll_a15", 0, 0, 0, SIRFSOC_CLKC_GNSS_CLKDIV_CFG, 24, 6, SIRFSOC_CLKC_GNSS_CLKDIV_ENA, 12, &gnss_div_lock }, + { "sys1pll_qa18", "sys1pll_fixdiv", "sys1pll_a18", 0, 0, 0, SIRFSOC_CLKC_SHARED_DIVIDER_CFG0, 24, 6, SIRFSOC_CLKC_SHARED_DIVIDER_ENA, 12, &share_div_lock }, + { "sys1pll_qa19", "sys1pll_fixdiv", "sys1pll_a19", 0, 0, CLK_IGNORE_UNUSED, SIRFSOC_CLKC_SHARED_DIVIDER_CFG0, 16, 6, SIRFSOC_CLKC_SHARED_DIVIDER_ENA, 8, &share_div_lock }, + { "sys1pll_qa20", "sys1pll_fixdiv", "sys1pll_a20", 0, 0, 0, SIRFSOC_CLKC_SHARED_DIVIDER_CFG0, 8, 6, SIRFSOC_CLKC_SHARED_DIVIDER_ENA, 4, &share_div_lock }, + { "sys2pll_qa20", "sys2pll_fixdiv", "sys2pll_a20", 0, 0, 0, SIRFSOC_CLKC_SHARED_DIVIDER_CFG0, 0, 6, SIRFSOC_CLKC_SHARED_DIVIDER_ENA, 0, &share_div_lock }, + { "sys1pll_qa17", "sys1pll_fixdiv", "sys1pll_a17", 0, 0, CLK_IGNORE_UNUSED, SIRFSOC_CLKC_SHARED_DIVIDER_CFG1, 8, 6, SIRFSOC_CLKC_SHARED_DIVIDER_ENA, 20, &share_div_lock }, + { "sys0pll_qa20", "sys0pll_fixdiv", "sys0pll_a20", 0, 0, 0, SIRFSOC_CLKC_SHARED_DIVIDER_CFG1, 0, 6, SIRFSOC_CLKC_SHARED_DIVIDER_ENA, 16, &share_div_lock }, +}; + +static const char * const i2s_clk_parents[] = { + "xin", + "xinw", + "audio_dto", + /* "pwm_i2s01" */ +}; + +static const char * const usbphy_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a1", + "sys1pll_a1", + "sys2pll_a1", + "sys3pll_a1", +}; + +static const char * const btss_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a2", + "sys1pll_a2", + "sys2pll_a2", + "sys3pll_a2", +}; + +static const char * const rgmii_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a3", + "sys1pll_a3", + "sys2pll_a3", + "sys3pll_a3", +}; + +static const char * const cpu_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a4", + "sys1pll_a4", + "cpupll_clk1", +}; + +static const char * const sdphy01_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a5", + "sys1pll_a5", + "sys2pll_a5", + "sys3pll_a5", +}; + +static const char * const sdphy23_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a6", + "sys1pll_a6", + "sys2pll_a6", + "sys3pll_a6", +}; + +static const char * const sdphy45_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a7", + "sys1pll_a7", + "sys2pll_a7", + "sys3pll_a7", +}; + +static const char * const sdphy67_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a8", + "sys1pll_a8", + "sys2pll_a8", + "sys3pll_a8", +}; + +static const char * const can_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a9", + "sys1pll_a9", + "sys2pll_a9", + "sys3pll_a9", +}; + +static const char * const deint_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a10", + "sys1pll_a10", + "sys2pll_a10", + "sys3pll_a10", +}; + +static const char * const nand_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a11", + "sys1pll_a11", + "sys2pll_a11", + "sys3pll_a11", +}; + +static const char * const disp0_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a12", + "sys1pll_a12", + "sys2pll_a12", + "sys3pll_a12", + "disp0_dto", +}; + +static const char * const disp1_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a13", + "sys1pll_a13", + "sys2pll_a13", + "sys3pll_a13", + "disp1_dto", +}; + +static const char * const gpu_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a14", + "sys1pll_a14", + "sys2pll_a14", + "sys3pll_a14", +}; + +static const char * const gnss_clk_parents[] = { + "xin", + "xinw", + "sys0pll_a15", + "sys1pll_a15", + "sys2pll_a15", + "sys3pll_a15", +}; + +static const char * const sys_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const io_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const g2d_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const jpenc_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const vdec_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const gmac_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const usb_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const kas_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const sec_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const sdr_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const vip_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const nocd_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const nocr_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static const char * const tpiu_clk_parents[] = { + "xin", + "xinw", + "sys2pll_a20", + "sys1pll_a20", + "sys1pll_a19", + "sys1pll_a18", + "sys0pll_a20", + "sys1pll_a17", +}; + +static struct atlas7_mux_init_data mux_list[] __initdata = { + /* mux_name, parent_names, parent_num, flags, mux_flags, mux_offset, shift, width */ + { "i2s_mux", i2s_clk_parents, ARRAY_SIZE(i2s_clk_parents), 0, 0, SIRFSOC_CLKC_I2S_CLK_SEL, 0, 2 }, + { "usbphy_mux", usbphy_clk_parents, ARRAY_SIZE(usbphy_clk_parents), 0, 0, SIRFSOC_CLKC_I2S_CLK_SEL, 0, 3 }, + { "btss_mux", btss_clk_parents, ARRAY_SIZE(btss_clk_parents), 0, 0, SIRFSOC_CLKC_BTSS_CLK_SEL, 0, 3 }, + { "rgmii_mux", rgmii_clk_parents, ARRAY_SIZE(rgmii_clk_parents), 0, 0, SIRFSOC_CLKC_RGMII_CLK_SEL, 0, 3 }, + { "cpu_mux", cpu_clk_parents, ARRAY_SIZE(cpu_clk_parents), 0, 0, SIRFSOC_CLKC_CPU_CLK_SEL, 0, 3 }, + { "sdphy01_mux", sdphy01_clk_parents, ARRAY_SIZE(sdphy01_clk_parents), 0, 0, SIRFSOC_CLKC_SDPHY01_CLK_SEL, 0, 3 }, + { "sdphy23_mux", sdphy23_clk_parents, ARRAY_SIZE(sdphy23_clk_parents), 0, 0, SIRFSOC_CLKC_SDPHY23_CLK_SEL, 0, 3 }, + { "sdphy45_mux", sdphy45_clk_parents, ARRAY_SIZE(sdphy45_clk_parents), 0, 0, SIRFSOC_CLKC_SDPHY45_CLK_SEL, 0, 3 }, + { "sdphy67_mux", sdphy67_clk_parents, ARRAY_SIZE(sdphy67_clk_parents), 0, 0, SIRFSOC_CLKC_SDPHY67_CLK_SEL, 0, 3 }, + { "can_mux", can_clk_parents, ARRAY_SIZE(can_clk_parents), 0, 0, SIRFSOC_CLKC_CAN_CLK_SEL, 0, 3 }, + { "deint_mux", deint_clk_parents, ARRAY_SIZE(deint_clk_parents), 0, 0, SIRFSOC_CLKC_DEINT_CLK_SEL, 0, 3 }, + { "nand_mux", nand_clk_parents, ARRAY_SIZE(nand_clk_parents), 0, 0, SIRFSOC_CLKC_NAND_CLK_SEL, 0, 3 }, + { "disp0_mux", disp0_clk_parents, ARRAY_SIZE(disp0_clk_parents), 0, 0, SIRFSOC_CLKC_DISP0_CLK_SEL, 0, 3 }, + { "disp1_mux", disp1_clk_parents, ARRAY_SIZE(disp1_clk_parents), 0, 0, SIRFSOC_CLKC_DISP1_CLK_SEL, 0, 3 }, + { "gpu_mux", gpu_clk_parents, ARRAY_SIZE(gpu_clk_parents), 0, 0, SIRFSOC_CLKC_GPU_CLK_SEL, 0, 3 }, + { "gnss_mux", gnss_clk_parents, ARRAY_SIZE(gnss_clk_parents), 0, 0, SIRFSOC_CLKC_GNSS_CLK_SEL, 0, 3 }, + { "sys_mux", sys_clk_parents, ARRAY_SIZE(sys_clk_parents), 0, 0, SIRFSOC_CLKC_SYS_CLK_SEL, 0, 3 }, + { "io_mux", io_clk_parents, ARRAY_SIZE(io_clk_parents), 0, 0, SIRFSOC_CLKC_IO_CLK_SEL, 0, 3 }, + { "g2d_mux", g2d_clk_parents, ARRAY_SIZE(g2d_clk_parents), 0, 0, SIRFSOC_CLKC_G2D_CLK_SEL, 0, 3 }, + { "jpenc_mux", jpenc_clk_parents, ARRAY_SIZE(jpenc_clk_parents), 0, 0, SIRFSOC_CLKC_JPENC_CLK_SEL, 0, 3 }, + { "vdec_mux", vdec_clk_parents, ARRAY_SIZE(vdec_clk_parents), 0, 0, SIRFSOC_CLKC_VDEC_CLK_SEL, 0, 3 }, + { "gmac_mux", gmac_clk_parents, ARRAY_SIZE(gmac_clk_parents), 0, 0, SIRFSOC_CLKC_GMAC_CLK_SEL, 0, 3 }, + { "usb_mux", usb_clk_parents, ARRAY_SIZE(usb_clk_parents), 0, 0, SIRFSOC_CLKC_USB_CLK_SEL, 0, 3 }, + { "kas_mux", kas_clk_parents, ARRAY_SIZE(kas_clk_parents), 0, 0, SIRFSOC_CLKC_KAS_CLK_SEL, 0, 3 }, + { "sec_mux", sec_clk_parents, ARRAY_SIZE(sec_clk_parents), 0, 0, SIRFSOC_CLKC_SEC_CLK_SEL, 0, 3 }, + { "sdr_mux", sdr_clk_parents, ARRAY_SIZE(sdr_clk_parents), 0, 0, SIRFSOC_CLKC_SDR_CLK_SEL, 0, 3 }, + { "vip_mux", vip_clk_parents, ARRAY_SIZE(vip_clk_parents), 0, 0, SIRFSOC_CLKC_VIP_CLK_SEL, 0, 3 }, + { "nocd_mux", nocd_clk_parents, ARRAY_SIZE(nocd_clk_parents), 0, 0, SIRFSOC_CLKC_NOCD_CLK_SEL, 0, 3 }, + { "nocr_mux", nocr_clk_parents, ARRAY_SIZE(nocr_clk_parents), 0, 0, SIRFSOC_CLKC_NOCR_CLK_SEL, 0, 3 }, + { "tpiu_mux", tpiu_clk_parents, ARRAY_SIZE(tpiu_clk_parents), 0, 0, SIRFSOC_CLKC_TPIU_CLK_SEL, 0, 3 }, +}; + + /* new unit should add start from the tail of list */ +static struct atlas7_unit_init_data unit_list[] __initdata = { + /* unit_name, parent_name, flags, regofs, bit, lock */ + { 0, "audmscm_kas", "kas_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 0, &root0_gate_lock }, + { 1, "gnssm_gnss", "gnss_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 1, &root0_gate_lock }, + { 2, "gpum_gpu", "gpu_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 2, &root0_gate_lock }, + { 3, "mediam_g2d", "g2d_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 3, &root0_gate_lock }, + { 4, "mediam_jpenc", "jpenc_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 4, &root0_gate_lock }, + { 5, "vdifm_disp0", "disp0_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 5, &root0_gate_lock }, + { 6, "vdifm_disp1", "disp1_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 6, &root0_gate_lock }, + { 7, "audmscm_i2s", "i2s_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 8, &root0_gate_lock }, + { 8, "audmscm_io", "io_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 11, &root0_gate_lock }, + { 9, "vdifm_io", "io_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 12, &root0_gate_lock }, + { 10, "gnssm_io", "io_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 13, &root0_gate_lock }, + { 11, "mediam_io", "io_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 14, &root0_gate_lock }, + { 12, "btm_io", "io_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 17, &root0_gate_lock }, + { 13, "mediam_sdphy01", "sdphy01_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 18, &root0_gate_lock }, + { 14, "vdifm_sdphy23", "sdphy23_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 19, &root0_gate_lock }, + { 15, "vdifm_sdphy45", "sdphy45_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 20, &root0_gate_lock }, + { 16, "vdifm_sdphy67", "sdphy67_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 21, &root0_gate_lock }, + { 17, "audmscm_xin", "xin", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 22, &root0_gate_lock }, + { 18, "mediam_nand", "nand_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 27, &root0_gate_lock }, + { 19, "gnssm_sec", "sec_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 28, &root0_gate_lock }, + { 20, "cpum_cpu", "cpu_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 29, &root0_gate_lock }, + { 21, "gnssm_xin", "xin", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 30, &root0_gate_lock }, + { 22, "vdifm_vip", "vip_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN0_SET, 31, &root0_gate_lock }, + { 23, "btm_btss", "btss_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 0, &root1_gate_lock }, + { 24, "mediam_usbphy", "usbphy_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 1, &root1_gate_lock }, + { 25, "rtcm_kas", "kas_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 2, &root1_gate_lock }, + { 26, "audmscm_nocd", "nocd_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 3, &root1_gate_lock }, + { 27, "vdifm_nocd", "nocd_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 4, &root1_gate_lock }, + { 28, "gnssm_nocd", "nocd_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 5, &root1_gate_lock }, + { 29, "mediam_nocd", "nocd_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 6, &root1_gate_lock }, + { 30, "cpum_nocd", "nocd_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 8, &root1_gate_lock }, + { 31, "gpum_nocd", "nocd_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 9, &root1_gate_lock }, + { 32, "audmscm_nocr", "nocr_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 11, &root1_gate_lock }, + { 33, "vdifm_nocr", "nocr_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 12, &root1_gate_lock }, + { 34, "gnssm_nocr", "nocr_mux", CLK_IGNORE_UNUSED, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 13, &root1_gate_lock }, + { 35, "mediam_nocr", "nocr_mux", CLK_IGNORE_UNUSED, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 14, &root1_gate_lock }, + { 36, "ddrm_nocr", "nocr_mux", CLK_IGNORE_UNUSED, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 15, &root1_gate_lock }, + { 37, "cpum_tpiu", "tpiu_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 16, &root1_gate_lock }, + { 38, "gpum_nocr", "nocr_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 17, &root1_gate_lock }, + { 39, "gnssm_rgmii", "rgmii_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 20, &root1_gate_lock }, + { 40, "mediam_vdec", "vdec_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 21, &root1_gate_lock }, + { 41, "gpum_sdr", "sdr_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 22, &root1_gate_lock }, + { 42, "vdifm_deint", "deint_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 23, &root1_gate_lock }, + { 43, "gnssm_can", "can_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 26, &root1_gate_lock }, + { 44, "mediam_usb", "usb_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 28, &root1_gate_lock }, + { 45, "gnssm_gmac", "gmac_mux", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 29, &root1_gate_lock }, + { 46, "cvd_io", "audmscm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 0, &leaf1_gate_lock }, + { 47, "timer_io", "audmscm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 1, &leaf1_gate_lock }, + { 48, "pulse_io", "audmscm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 2, &leaf1_gate_lock }, + { 49, "tsc_io", "audmscm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 3, &leaf1_gate_lock }, + { 50, "tsc_xin", "audmscm_xin", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 21, &leaf1_gate_lock }, + { 51, "ioctop_io", "audmscm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 4, &leaf1_gate_lock }, + { 52, "rsc_io", "audmscm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 5, &leaf1_gate_lock }, + { 53, "dvm_io", "audmscm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 6, &leaf1_gate_lock }, + { 54, "lvds_xin", "audmscm_xin", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 7, &leaf1_gate_lock }, + { 55, "kas_kas", "audmscm_kas", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 8, &leaf1_gate_lock }, + { 56, "ac97_kas", "audmscm_kas", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 9, &leaf1_gate_lock }, + { 57, "usp0_kas", "audmscm_kas", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 10, &leaf1_gate_lock }, + { 58, "usp1_kas", "audmscm_kas", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 11, &leaf1_gate_lock }, + { 59, "usp2_kas", "audmscm_kas", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 12, &leaf1_gate_lock }, + { 60, "dmac2_kas", "audmscm_kas", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 13, &leaf1_gate_lock }, + { 61, "dmac3_kas", "audmscm_kas", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 14, &leaf1_gate_lock }, + { 62, "audioif_kas", "audmscm_kas", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 15, &leaf1_gate_lock }, + { 63, "i2s1_kas", "audmscm_kas", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 17, &leaf1_gate_lock }, + { 64, "thaudmscm_io", "audmscm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 22, &leaf1_gate_lock }, + { 65, "analogtest_xin", "audmscm_xin", 0, SIRFSOC_CLKC_LEAF_CLK_EN1_SET, 23, &leaf1_gate_lock }, + { 66, "sys2pci_io", "vdifm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 0, &leaf2_gate_lock }, + { 67, "pciarb_io", "vdifm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 1, &leaf2_gate_lock }, + { 68, "pcicopy_io", "vdifm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 2, &leaf2_gate_lock }, + { 69, "rom_io", "vdifm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 3, &leaf2_gate_lock }, + { 70, "sdio23_io", "vdifm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 4, &leaf2_gate_lock }, + { 71, "sdio45_io", "vdifm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 5, &leaf2_gate_lock }, + { 72, "sdio67_io", "vdifm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 6, &leaf2_gate_lock }, + { 73, "vip1_io", "vdifm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 7, &leaf2_gate_lock }, + { 74, "vip1_vip", "vdifm_vip", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 16, &leaf2_gate_lock }, + { 75, "sdio23_sdphy23", "vdifm_sdphy23", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 8, &leaf2_gate_lock }, + { 76, "sdio45_sdphy45", "vdifm_sdphy45", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 9, &leaf2_gate_lock }, + { 77, "sdio67_sdphy67", "vdifm_sdphy67", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 10, &leaf2_gate_lock }, + { 78, "vpp0_disp0", "vdifm_disp0", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 11, &leaf2_gate_lock }, + { 79, "lcd0_disp0", "vdifm_disp0", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 12, &leaf2_gate_lock }, + { 80, "vpp1_disp1", "vdifm_disp1", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 13, &leaf2_gate_lock }, + { 81, "lcd1_disp1", "vdifm_disp1", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 14, &leaf2_gate_lock }, + { 82, "dcu_deint", "vdifm_deint", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 15, &leaf2_gate_lock }, + { 83, "vdifm_dapa_r_nocr", "vdifm_nocr", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 17, &leaf2_gate_lock }, + { 84, "gpio1_io", "vdifm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 18, &leaf2_gate_lock }, + { 85, "thvdifm_io", "vdifm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN2_SET, 19, &leaf2_gate_lock }, + { 86, "gmac_rgmii", "gnssm_rgmii", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 0, &leaf3_gate_lock }, + { 87, "gmac_gmac", "gnssm_gmac", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 1, &leaf3_gate_lock }, + { 88, "uart1_io", "gnssm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 2, &leaf3_gate_lock }, + { 89, "dmac0_io", "gnssm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 3, &leaf3_gate_lock }, + { 90, "uart0_io", "gnssm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 4, &leaf3_gate_lock }, + { 91, "uart2_io", "gnssm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 5, &leaf3_gate_lock }, + { 92, "uart3_io", "gnssm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 6, &leaf3_gate_lock }, + { 93, "uart4_io", "gnssm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 7, &leaf3_gate_lock }, + { 94, "uart5_io", "gnssm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 8, &leaf3_gate_lock }, + { 95, "spi1_io", "gnssm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 9, &leaf3_gate_lock }, + { 96, "gnss_gnss", "gnssm_gnss", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 10, &leaf3_gate_lock }, + { 97, "canbus1_can", "gnssm_can", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 12, &leaf3_gate_lock }, + { 98, "ccsec_sec", "gnssm_sec", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 15, &leaf3_gate_lock }, + { 99, "ccpub_sec", "gnssm_sec", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 16, &leaf3_gate_lock }, + { 100, "gnssm_dapa_r_nocr", "gnssm_nocr", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 13, &leaf3_gate_lock }, + { 101, "thgnssm_io", "gnssm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN3_SET, 14, &leaf3_gate_lock }, + { 102, "media_vdec", "mediam_vdec", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 0, &leaf4_gate_lock }, + { 103, "media_jpenc", "mediam_jpenc", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 1, &leaf4_gate_lock }, + { 104, "g2d_g2d", "mediam_g2d", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 2, &leaf4_gate_lock }, + { 105, "i2c0_io", "mediam_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 3, &leaf4_gate_lock }, + { 106, "i2c1_io", "mediam_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 4, &leaf4_gate_lock }, + { 107, "gpio0_io", "mediam_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 5, &leaf4_gate_lock }, + { 108, "nand_io", "mediam_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 6, &leaf4_gate_lock }, + { 109, "sdio01_io", "mediam_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 7, &leaf4_gate_lock }, + { 110, "sys2pci2_io", "mediam_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 8, &leaf4_gate_lock }, + { 111, "sdio01_sdphy01", "mediam_sdphy01", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 9, &leaf4_gate_lock }, + { 112, "nand_nand", "mediam_nand", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 10, &leaf4_gate_lock }, + { 113, "usb0_usb", "mediam_usb", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 11, &leaf4_gate_lock }, + { 114, "usb1_usb", "mediam_usb", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 12, &leaf4_gate_lock }, + { 115, "usbphy0_usbphy", "mediam_usbphy", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 13, &leaf4_gate_lock }, + { 116, "usbphy1_usbphy", "mediam_usbphy", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 14, &leaf4_gate_lock }, + { 117, "thmediam_io", "mediam_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN4_SET, 15, &leaf4_gate_lock }, + { 118, "memc_mem", "mempll_clk1", CLK_IGNORE_UNUSED, SIRFSOC_CLKC_LEAF_CLK_EN5_SET, 0, &leaf5_gate_lock }, + { 119, "dapa_mem", "mempll_clk1", 0, SIRFSOC_CLKC_LEAF_CLK_EN5_SET, 1, &leaf5_gate_lock }, + { 120, "nocddrm_nocr", "ddrm_nocr", 0, SIRFSOC_CLKC_LEAF_CLK_EN5_SET, 2, &leaf5_gate_lock }, + { 121, "thddrm_nocr", "ddrm_nocr", 0, SIRFSOC_CLKC_LEAF_CLK_EN5_SET, 3, &leaf5_gate_lock }, + { 122, "spram1_cpudiv2", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 0, &leaf6_gate_lock }, + { 123, "spram2_cpudiv2", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 1, &leaf6_gate_lock }, + { 124, "coresight_cpudiv2", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 2, &leaf6_gate_lock }, + { 125, "thcpum_cpudiv4", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 3, &leaf6_gate_lock }, + { 126, "graphic_gpu", "gpum_gpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN7_SET, 0, &leaf7_gate_lock }, + { 127, "vss_sdr", "gpum_sdr", 0, SIRFSOC_CLKC_LEAF_CLK_EN7_SET, 1, &leaf7_gate_lock }, + { 128, "thgpum_nocr", "gpum_nocr", 0, SIRFSOC_CLKC_LEAF_CLK_EN7_SET, 2, &leaf7_gate_lock }, + { 129, "a7ca_btss", "btm_btss", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 1, &leaf8_gate_lock }, + { 130, "dmac4_io", "btm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 2, &leaf8_gate_lock }, + { 131, "uart6_io", "btm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 3, &leaf8_gate_lock }, + { 132, "usp3_io", "btm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 4, &leaf8_gate_lock }, + { 133, "a7ca_io", "btm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 5, &leaf8_gate_lock }, + { 134, "noc_btm_io", "btm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 6, &leaf8_gate_lock }, + { 135, "thbtm_io", "btm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 7, &leaf8_gate_lock }, + { 136, "btslow", "xinw_fixdiv_btslow", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 25, &root1_gate_lock }, + { 137, "a7ca_btslow", "btslow", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 0, &leaf8_gate_lock }, +}; + +static struct clk *atlas7_clks[ARRAY_SIZE(unit_list)]; + +static int unit_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_unit *clk = to_unitclk(hw); + u32 reg; + + reg = clk->regofs + SIRFSOC_CLKC_ROOT_CLK_EN0_STAT - SIRFSOC_CLKC_ROOT_CLK_EN0_SET; + + return !!(clkc_readl(reg) & BIT(clk->bit)); +} + +static int unit_clk_enable(struct clk_hw *hw) +{ + u32 reg; + struct clk_unit *clk = to_unitclk(hw); + unsigned long flags; + + reg = clk->regofs; + + spin_lock_irqsave(clk->lock, flags); + clkc_writel(BIT(clk->bit), reg); + spin_unlock_irqrestore(clk->lock, flags); + return 0; +} + +static void unit_clk_disable(struct clk_hw *hw) +{ + u32 reg; + struct clk_unit *clk = to_unitclk(hw); + unsigned long flags; + + reg = clk->regofs + SIRFSOC_CLKC_ROOT_CLK_EN0_CLR - SIRFSOC_CLKC_ROOT_CLK_EN0_SET; + + spin_lock_irqsave(clk->lock, flags); + clkc_writel(BIT(clk->bit), reg); + spin_unlock_irqrestore(clk->lock, flags); +} + +static const struct clk_ops unit_clk_ops = { + .is_enabled = unit_clk_is_enabled, + .enable = unit_clk_enable, + .disable = unit_clk_disable, +}; + +static struct clk * __init +atlas7_unit_clk_register(struct device *dev, const char *name, + const char * const parent_name, unsigned long flags, + u32 regofs, u8 bit, spinlock_t *lock) +{ + struct clk *clk; + struct clk_unit *unit; + struct clk_init_data init; + + unit = kzalloc(sizeof(*unit), GFP_KERNEL); + if (!unit) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.parent_names = &parent_name; + init.num_parents = 1; + init.ops = &unit_clk_ops; + init.flags = flags; + + unit->hw.init = &init; + unit->regofs = regofs; + unit->bit = bit; + unit->lock = lock; + + clk = clk_register(dev, &unit->hw); + if (IS_ERR(clk)) + kfree(unit); + + return clk; +} + +static struct atlas7_reset_desc atlas7_reset_unit[] = { + { "PWM", 0x0244, 0, 0x0320, 0, &leaf0_gate_lock }, /* 0-5 */ + { "THCGUM", 0x0244, 3, 0x0320, 1, &leaf0_gate_lock }, + { "CVD", 0x04A0, 0, 0x032C, 0, &leaf1_gate_lock }, + { "TIMER", 0x04A0, 1, 0x032C, 1, &leaf1_gate_lock }, + { "PULSEC", 0x04A0, 2, 0x032C, 2, &leaf1_gate_lock }, + { "TSC", 0x04A0, 3, 0x032C, 3, &leaf1_gate_lock }, + { "IOCTOP", 0x04A0, 4, 0x032C, 4, &leaf1_gate_lock }, /* 6-10 */ + { "RSC", 0x04A0, 5, 0x032C, 5, &leaf1_gate_lock }, + { "DVM", 0x04A0, 6, 0x032C, 6, &leaf1_gate_lock }, + { "LVDS", 0x04A0, 7, 0x032C, 7, &leaf1_gate_lock }, + { "KAS", 0x04A0, 8, 0x032C, 8, &leaf1_gate_lock }, + { "AC97", 0x04A0, 9, 0x032C, 9, &leaf1_gate_lock }, /* 11-15 */ + { "USP0", 0x04A0, 10, 0x032C, 10, &leaf1_gate_lock }, + { "USP1", 0x04A0, 11, 0x032C, 11, &leaf1_gate_lock }, + { "USP2", 0x04A0, 12, 0x032C, 12, &leaf1_gate_lock }, + { "DMAC2", 0x04A0, 13, 0x032C, 13, &leaf1_gate_lock }, + { "DMAC3", 0x04A0, 14, 0x032C, 14, &leaf1_gate_lock }, /* 16-20 */ + { "AUDIO", 0x04A0, 15, 0x032C, 15, &leaf1_gate_lock }, + { "I2S1", 0x04A0, 17, 0x032C, 16, &leaf1_gate_lock }, + { "PMU_AUDIO", 0x04A0, 22, 0x032C, 17, &leaf1_gate_lock }, + { "THAUDMSCM", 0x04A0, 23, 0x032C, 18, &leaf1_gate_lock }, + { "SYS2PCI", 0x04B8, 0, 0x0338, 0, &leaf2_gate_lock }, /* 21-25 */ + { "PCIARB", 0x04B8, 1, 0x0338, 1, &leaf2_gate_lock }, + { "PCICOPY", 0x04B8, 2, 0x0338, 2, &leaf2_gate_lock }, + { "ROM", 0x04B8, 3, 0x0338, 3, &leaf2_gate_lock }, + { "SDIO23", 0x04B8, 4, 0x0338, 4, &leaf2_gate_lock }, + { "SDIO45", 0x04B8, 5, 0x0338, 5, &leaf2_gate_lock }, /* 26-30 */ + { "SDIO67", 0x04B8, 6, 0x0338, 6, &leaf2_gate_lock }, + { "VIP1", 0x04B8, 7, 0x0338, 7, &leaf2_gate_lock }, + { "VPP0", 0x04B8, 11, 0x0338, 8, &leaf2_gate_lock }, + { "LCD0", 0x04B8, 12, 0x0338, 9, &leaf2_gate_lock }, + { "VPP1", 0x04B8, 13, 0x0338, 10, &leaf2_gate_lock }, /* 31-35 */ + { "LCD1", 0x04B8, 14, 0x0338, 11, &leaf2_gate_lock }, + { "DCU", 0x04B8, 15, 0x0338, 12, &leaf2_gate_lock }, + { "GPIO", 0x04B8, 18, 0x0338, 13, &leaf2_gate_lock }, + { "DAPA_VDIFM", 0x04B8, 17, 0x0338, 15, &leaf2_gate_lock }, + { "THVDIFM", 0x04B8, 19, 0x0338, 16, &leaf2_gate_lock }, /* 36-40 */ + { "RGMII", 0x04D0, 0, 0x0344, 0, &leaf3_gate_lock }, + { "GMAC", 0x04D0, 1, 0x0344, 1, &leaf3_gate_lock }, + { "UART1", 0x04D0, 2, 0x0344, 2, &leaf3_gate_lock }, + { "DMAC0", 0x04D0, 3, 0x0344, 3, &leaf3_gate_lock }, + { "UART0", 0x04D0, 4, 0x0344, 4, &leaf3_gate_lock }, /* 41-45 */ + { "UART2", 0x04D0, 5, 0x0344, 5, &leaf3_gate_lock }, + { "UART3", 0x04D0, 6, 0x0344, 6, &leaf3_gate_lock }, + { "UART4", 0x04D0, 7, 0x0344, 7, &leaf3_gate_lock }, + { "UART5", 0x04D0, 8, 0x0344, 8, &leaf3_gate_lock }, + { "SPI1", 0x04D0, 9, 0x0344, 9, &leaf3_gate_lock }, /* 46-50 */ + { "GNSS_SYS_M0", 0x04D0, 10, 0x0344, 10, &leaf3_gate_lock }, + { "CANBUS1", 0x04D0, 12, 0x0344, 11, &leaf3_gate_lock }, + { "CCSEC", 0x04D0, 15, 0x0344, 12, &leaf3_gate_lock }, + { "CCPUB", 0x04D0, 16, 0x0344, 13, &leaf3_gate_lock }, + { "DAPA_GNSSM", 0x04D0, 13, 0x0344, 14, &leaf3_gate_lock }, /* 51-55 */ + { "THGNSSM", 0x04D0, 14, 0x0344, 15, &leaf3_gate_lock }, + { "VDEC", 0x04E8, 0, 0x0350, 0, &leaf4_gate_lock }, + { "JPENC", 0x04E8, 1, 0x0350, 1, &leaf4_gate_lock }, + { "G2D", 0x04E8, 2, 0x0350, 2, &leaf4_gate_lock }, + { "I2C0", 0x04E8, 3, 0x0350, 3, &leaf4_gate_lock }, /* 56-60 */ + { "I2C1", 0x04E8, 4, 0x0350, 4, &leaf4_gate_lock }, + { "GPIO0", 0x04E8, 5, 0x0350, 5, &leaf4_gate_lock }, + { "NAND", 0x04E8, 6, 0x0350, 6, &leaf4_gate_lock }, + { "SDIO01", 0x04E8, 7, 0x0350, 7, &leaf4_gate_lock }, + { "SYS2PCI2", 0x04E8, 8, 0x0350, 8, &leaf4_gate_lock }, /* 61-65 */ + { "USB0", 0x04E8, 11, 0x0350, 9, &leaf4_gate_lock }, + { "USB1", 0x04E8, 12, 0x0350, 10, &leaf4_gate_lock }, + { "THMEDIAM", 0x04E8, 15, 0x0350, 11, &leaf4_gate_lock }, + { "MEMC_DDRPHY", 0x0500, 0, 0x035C, 0, &leaf5_gate_lock }, + { "MEMC_UPCTL", 0x0500, 0, 0x035C, 1, &leaf5_gate_lock }, /* 66-70 */ + { "DAPA_MEM", 0x0500, 1, 0x035C, 2, &leaf5_gate_lock }, + { "MEMC_MEMDIV", 0x0500, 0, 0x035C, 3, &leaf5_gate_lock }, + { "THDDRM", 0x0500, 3, 0x035C, 4, &leaf5_gate_lock }, + { "CORESIGHT", 0x0518, 3, 0x0368, 13, &leaf6_gate_lock }, + { "THCPUM", 0x0518, 4, 0x0368, 17, &leaf6_gate_lock }, /* 71-75 */ + { "GRAPHIC", 0x0530, 0, 0x0374, 0, &leaf7_gate_lock }, + { "VSS_SDR", 0x0530, 1, 0x0374, 1, &leaf7_gate_lock }, + { "THGPUM", 0x0530, 2, 0x0374, 2, &leaf7_gate_lock }, + { "DMAC4", 0x0548, 2, 0x0380, 1, &leaf8_gate_lock }, + { "UART6", 0x0548, 3, 0x0380, 2, &leaf8_gate_lock }, /* 76- */ + { "USP3", 0x0548, 4, 0x0380, 3, &leaf8_gate_lock }, + { "THBTM", 0x0548, 5, 0x0380, 5, &leaf8_gate_lock }, + { "A7CA", 0x0548, 1, 0x0380, 0, &leaf8_gate_lock }, + { "A7CA_APB", 0x0548, 5, 0x0380, 4, &leaf8_gate_lock }, +}; + +static int atlas7_reset_module(struct reset_controller_dev *rcdev, + unsigned long reset_idx) +{ + struct atlas7_reset_desc *reset = &atlas7_reset_unit[reset_idx]; + unsigned long flags; + + /* + * HW suggest unit reset sequence: + * assert sw reset (0) + * setting sw clk_en to if the clock was disabled before reset + * delay 16 clocks + * disable clock (sw clk_en = 0) + * de-assert reset (1) + * after this sequence, restore clock or not is decided by SW + */ + + spin_lock_irqsave(reset->lock, flags); + /* clock enable or not */ + if (clkc_readl(reset->clk_ofs + 8) & (1 << reset->clk_bit)) { + clkc_writel(1 << reset->rst_bit, reset->rst_ofs + 4); + udelay(2); + clkc_writel(1 << reset->clk_bit, reset->clk_ofs + 4); + clkc_writel(1 << reset->rst_bit, reset->rst_ofs); + /* restore clock enable */ + clkc_writel(1 << reset->clk_bit, reset->clk_ofs); + } else { + clkc_writel(1 << reset->rst_bit, reset->rst_ofs + 4); + clkc_writel(1 << reset->clk_bit, reset->clk_ofs); + udelay(2); + clkc_writel(1 << reset->clk_bit, reset->clk_ofs + 4); + clkc_writel(1 << reset->rst_bit, reset->rst_ofs); + } + spin_unlock_irqrestore(reset->lock, flags); + + return 0; +} + +static struct reset_control_ops atlas7_rst_ops = { + .reset = atlas7_reset_module, +}; + +static struct reset_controller_dev atlas7_rst_ctlr = { + .ops = &atlas7_rst_ops, + .owner = THIS_MODULE, + .of_reset_n_cells = 1, +}; + +static void __init atlas7_clk_init(struct device_node *np) +{ + struct clk *clk; + struct atlas7_div_init_data *div; + struct atlas7_mux_init_data *mux; + struct atlas7_unit_init_data *unit; + int i; + int ret; + + sirfsoc_clk_vbase = of_iomap(np, 0); + if (!sirfsoc_clk_vbase) + panic("unable to map clkc registers\n"); + + of_node_put(np); + + clk = clk_register(NULL, &clk_cpupll.hw); + BUG_ON(!clk); + clk = clk_register(NULL, &clk_mempll.hw); + BUG_ON(!clk); + clk = clk_register(NULL, &clk_sys0pll.hw); + BUG_ON(!clk); + clk = clk_register(NULL, &clk_sys1pll.hw); + BUG_ON(!clk); + clk = clk_register(NULL, &clk_sys2pll.hw); + BUG_ON(!clk); + clk = clk_register(NULL, &clk_sys3pll.hw); + BUG_ON(!clk); + + clk = clk_register_divider_table(NULL, "cpupll_div1", "cpupll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_CPUPLL_AB_CTRL1, 0, 3, 0, + pll_div_table, &cpupll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "cpupll_div2", "cpupll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_CPUPLL_AB_CTRL1, 4, 3, 0, + pll_div_table, &cpupll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "cpupll_div3", "cpupll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_CPUPLL_AB_CTRL1, 8, 3, 0, + pll_div_table, &cpupll_ctrl1_lock); + BUG_ON(!clk); + + clk = clk_register_divider_table(NULL, "mempll_div1", "mempll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_MEMPLL_AB_CTRL1, 0, 3, 0, + pll_div_table, &mempll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "mempll_div2", "mempll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_MEMPLL_AB_CTRL1, 4, 3, 0, + pll_div_table, &mempll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "mempll_div3", "mempll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_MEMPLL_AB_CTRL1, 8, 3, 0, + pll_div_table, &mempll_ctrl1_lock); + BUG_ON(!clk); + + clk = clk_register_divider_table(NULL, "sys0pll_div1", "sys0pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS0PLL_AB_CTRL1, 0, 3, 0, + pll_div_table, &sys0pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "sys0pll_div2", "sys0pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS0PLL_AB_CTRL1, 4, 3, 0, + pll_div_table, &sys0pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "sys0pll_div3", "sys0pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS0PLL_AB_CTRL1, 8, 3, 0, + pll_div_table, &sys0pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_fixed_factor(NULL, "sys0pll_fixdiv", "sys0pll_vco", + CLK_SET_RATE_PARENT, 1, 2); + + clk = clk_register_divider_table(NULL, "sys1pll_div1", "sys1pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS1PLL_AB_CTRL1, 0, 3, 0, + pll_div_table, &sys1pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "sys1pll_div2", "sys1pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS1PLL_AB_CTRL1, 4, 3, 0, + pll_div_table, &sys1pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "sys1pll_div3", "sys1pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS1PLL_AB_CTRL1, 8, 3, 0, + pll_div_table, &sys1pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_fixed_factor(NULL, "sys1pll_fixdiv", "sys1pll_vco", + CLK_SET_RATE_PARENT, 1, 2); + + clk = clk_register_divider_table(NULL, "sys2pll_div1", "sys2pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS2PLL_AB_CTRL1, 0, 3, 0, + pll_div_table, &sys2pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "sys2pll_div2", "sys2pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS2PLL_AB_CTRL1, 4, 3, 0, + pll_div_table, &sys2pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "sys2pll_div3", "sys2pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS2PLL_AB_CTRL1, 8, 3, 0, + pll_div_table, &sys2pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_fixed_factor(NULL, "sys2pll_fixdiv", "sys2pll_vco", + CLK_SET_RATE_PARENT, 1, 2); + + clk = clk_register_divider_table(NULL, "sys3pll_div1", "sys3pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS3PLL_AB_CTRL1, 0, 3, 0, + pll_div_table, &sys3pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "sys3pll_div2", "sys3pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS3PLL_AB_CTRL1, 4, 3, 0, + pll_div_table, &sys3pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_divider_table(NULL, "sys3pll_div3", "sys3pll_vco", 0, + sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS3PLL_AB_CTRL1, 8, 3, 0, + pll_div_table, &sys3pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_fixed_factor(NULL, "sys3pll_fixdiv", "sys3pll_vco", + CLK_SET_RATE_PARENT, 1, 2); + + BUG_ON(!clk); + clk = clk_register_fixed_factor(NULL, "xinw_fixdiv_btslow", "xinw", + CLK_SET_RATE_PARENT, 1, 4); + + BUG_ON(!clk); + clk = clk_register_gate(NULL, "cpupll_clk1", "cpupll_div1", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_CPUPLL_AB_CTRL1, + 12, 0, &cpupll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "cpupll_clk2", "cpupll_div2", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_CPUPLL_AB_CTRL1, + 13, 0, &cpupll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "cpupll_clk3", "cpupll_div3", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_CPUPLL_AB_CTRL1, + 14, 0, &cpupll_ctrl1_lock); + BUG_ON(!clk); + + clk = clk_register_gate(NULL, "mempll_clk1", "mempll_div1", + CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + sirfsoc_clk_vbase + SIRFSOC_CLKC_MEMPLL_AB_CTRL1, + 12, 0, &mempll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "mempll_clk2", "mempll_div2", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_MEMPLL_AB_CTRL1, + 13, 0, &mempll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "mempll_clk3", "mempll_div3", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_MEMPLL_AB_CTRL1, + 14, 0, &mempll_ctrl1_lock); + BUG_ON(!clk); + + clk = clk_register_gate(NULL, "sys0pll_clk1", "sys0pll_div1", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS0PLL_AB_CTRL1, + 12, 0, &sys0pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "sys0pll_clk2", "sys0pll_div2", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS0PLL_AB_CTRL1, + 13, 0, &sys0pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "sys0pll_clk3", "sys0pll_div3", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS0PLL_AB_CTRL1, + 14, 0, &sys0pll_ctrl1_lock); + BUG_ON(!clk); + + clk = clk_register_gate(NULL, "sys1pll_clk1", "sys1pll_div1", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS1PLL_AB_CTRL1, + 12, 0, &sys1pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "sys1pll_clk2", "sys1pll_div2", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS1PLL_AB_CTRL1, + 13, 0, &sys1pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "sys1pll_clk3", "sys1pll_div3", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS1PLL_AB_CTRL1, + 14, 0, &sys1pll_ctrl1_lock); + BUG_ON(!clk); + + clk = clk_register_gate(NULL, "sys2pll_clk1", "sys2pll_div1", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS2PLL_AB_CTRL1, + 12, 0, &sys2pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "sys2pll_clk2", "sys2pll_div2", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS2PLL_AB_CTRL1, + 13, 0, &sys2pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "sys2pll_clk3", "sys2pll_div3", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS2PLL_AB_CTRL1, + 14, 0, &sys2pll_ctrl1_lock); + BUG_ON(!clk); + + clk = clk_register_gate(NULL, "sys3pll_clk1", "sys3pll_div1", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS3PLL_AB_CTRL1, + 12, 0, &sys3pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "sys3pll_clk2", "sys3pll_div2", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS3PLL_AB_CTRL1, + 13, 0, &sys3pll_ctrl1_lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, "sys3pll_clk3", "sys3pll_div3", + CLK_SET_RATE_PARENT, sirfsoc_clk_vbase + SIRFSOC_CLKC_SYS3PLL_AB_CTRL1, + 14, 0, &sys3pll_ctrl1_lock); + BUG_ON(!clk); + + clk = clk_register(NULL, &clk_audio_dto.hw); + BUG_ON(!clk); + + clk = clk_register(NULL, &clk_disp0_dto.hw); + BUG_ON(!clk); + + clk = clk_register(NULL, &clk_disp1_dto.hw); + BUG_ON(!clk); + + for (i = 0; i < ARRAY_SIZE(divider_list); i++) { + div = ÷r_list[i]; + clk = clk_register_divider(NULL, div->div_name, + div->parent_name, div->divider_flags, sirfsoc_clk_vbase + div->div_offset, + div->shift, div->width, 0, div->lock); + BUG_ON(!clk); + clk = clk_register_gate(NULL, div->gate_name, div->div_name, + div->gate_flags, sirfsoc_clk_vbase + div->gate_offset, + div->gate_bit, 0, div->lock); + BUG_ON(!clk); + } + /* ignore selector status register check */ + for (i = 0; i < ARRAY_SIZE(mux_list); i++) { + mux = &mux_list[i]; + clk = clk_register_mux(NULL, mux->mux_name, mux->parent_names, + mux->parent_num, mux->flags, + sirfsoc_clk_vbase + mux->mux_offset, + mux->shift, mux->width, + mux->mux_flags, NULL); + BUG_ON(!clk); + } + + for (i = 0; i < ARRAY_SIZE(unit_list); i++) { + unit = &unit_list[i]; + atlas7_clks[i] = atlas7_unit_clk_register(NULL, unit->unit_name, unit->parent_name, + unit->flags, unit->regofs, unit->bit, unit->lock); + BUG_ON(!atlas7_clks[i]); + } + + clk_data.clks = atlas7_clks; + clk_data.clk_num = ARRAY_SIZE(unit_list); + + ret = of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + BUG_ON(ret); + + atlas7_rst_ctlr.of_node = np; + atlas7_rst_ctlr.nr_resets = ARRAY_SIZE(atlas7_reset_unit); + reset_controller_register(&atlas7_rst_ctlr); +} +CLK_OF_DECLARE(atlas7_clk, "sirf,atlas7-car", atlas7_clk_init); diff --git a/drivers/clk/sirf/clk-common.c b/drivers/clk/sirf/clk-common.c index 37af51c5f213..9fc285d784d3 100644 --- a/drivers/clk/sirf/clk-common.c +++ b/drivers/clk/sirf/clk-common.c @@ -10,8 +10,8 @@ #define KHZ 1000 #define MHZ (KHZ * KHZ) -static void *sirfsoc_clk_vbase; -static void *sirfsoc_rsc_vbase; +static void __iomem *sirfsoc_clk_vbase; +static void __iomem *sirfsoc_rsc_vbase; static struct clk_onecell_data clk_data; /* @@ -188,7 +188,7 @@ static struct clk_ops std_pll_ops = { .set_rate = pll_clk_set_rate, }; -static const char *pll_clk_parents[] = { +static const char * const pll_clk_parents[] = { "osc", }; @@ -284,7 +284,7 @@ static struct clk_hw usb_pll_clk_hw = { * clock domains - cpu, mem, sys/io, dsp, gfx */ -static const char *dmn_clk_parents[] = { +static const char * const dmn_clk_parents[] = { "rtc", "osc", "pll1", @@ -673,7 +673,7 @@ static void std_clk_disable(struct clk_hw *hw) clkc_writel(val, reg); } -static const char *std_clk_io_parents[] = { +static const char * const std_clk_io_parents[] = { "io", }; @@ -949,7 +949,7 @@ static struct clk_std clk_pulse = { }, }; -static const char *std_clk_dsp_parents[] = { +static const char * const std_clk_dsp_parents[] = { "dsp", }; @@ -981,7 +981,7 @@ static struct clk_std clk_mf = { }, }; -static const char *std_clk_sys_parents[] = { +static const char * const std_clk_sys_parents[] = { "sys", }; @@ -999,7 +999,7 @@ static struct clk_std clk_security = { }, }; -static const char *std_clk_usb_parents[] = { +static const char * const std_clk_usb_parents[] = { "usb_pll", }; diff --git a/drivers/clk/socfpga/Makefile b/drivers/clk/socfpga/Makefile index 7e2d15a0c7b8..d8bb239753a4 100644 --- a/drivers/clk/socfpga/Makefile +++ b/drivers/clk/socfpga/Makefile @@ -2,3 +2,4 @@ obj-y += clk.o obj-y += clk-gate.o obj-y += clk-pll.o obj-y += clk-periph.o +obj-y += clk-pll-a10.o clk-periph-a10.o clk-gate-a10.o diff --git a/drivers/clk/socfpga/clk-gate-a10.c b/drivers/clk/socfpga/clk-gate-a10.c new file mode 100644 index 000000000000..83c6780ff4b2 --- /dev/null +++ b/drivers/clk/socfpga/clk-gate-a10.c @@ -0,0 +1,190 @@ +/* + * Copyright (C) 2015 Altera Corporation. All rights reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/mfd/syscon.h> +#include <linux/of.h> +#include <linux/regmap.h> + +#include "clk.h" + +#define streq(a, b) (strcmp((a), (b)) == 0) + +#define to_socfpga_gate_clk(p) container_of(p, struct socfpga_gate_clk, hw.hw) + +/* SDMMC Group for System Manager defines */ +#define SYSMGR_SDMMCGRP_CTRL_OFFSET 0x28 + +static unsigned long socfpga_gate_clk_recalc_rate(struct clk_hw *hwclk, + unsigned long parent_rate) +{ + struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk); + u32 div = 1, val; + + if (socfpgaclk->fixed_div) + div = socfpgaclk->fixed_div; + else if (socfpgaclk->div_reg) { + val = readl(socfpgaclk->div_reg) >> socfpgaclk->shift; + val &= div_mask(socfpgaclk->width); + div = (1 << val); + } + + return parent_rate / div; +} + +static int socfpga_clk_prepare(struct clk_hw *hwclk) +{ + struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk); + int i; + u32 hs_timing; + u32 clk_phase[2]; + + if (socfpgaclk->clk_phase[0] || socfpgaclk->clk_phase[1]) { + for (i = 0; i < ARRAY_SIZE(clk_phase); i++) { + switch (socfpgaclk->clk_phase[i]) { + case 0: + clk_phase[i] = 0; + break; + case 45: + clk_phase[i] = 1; + break; + case 90: + clk_phase[i] = 2; + break; + case 135: + clk_phase[i] = 3; + break; + case 180: + clk_phase[i] = 4; + break; + case 225: + clk_phase[i] = 5; + break; + case 270: + clk_phase[i] = 6; + break; + case 315: + clk_phase[i] = 7; + break; + default: + clk_phase[i] = 0; + break; + } + } + + hs_timing = SYSMGR_SDMMC_CTRL_SET(clk_phase[0], clk_phase[1]); + if (!IS_ERR(socfpgaclk->sys_mgr_base_addr)) + regmap_write(socfpgaclk->sys_mgr_base_addr, + SYSMGR_SDMMCGRP_CTRL_OFFSET, hs_timing); + else + pr_err("%s: cannot set clk_phase because sys_mgr_base_addr is not available!\n", + __func__); + } + return 0; +} + +static struct clk_ops gateclk_ops = { + .prepare = socfpga_clk_prepare, + .recalc_rate = socfpga_gate_clk_recalc_rate, +}; + +static void __init __socfpga_gate_init(struct device_node *node, + const struct clk_ops *ops) +{ + u32 clk_gate[2]; + u32 div_reg[3]; + u32 clk_phase[2]; + u32 fixed_div; + struct clk *clk; + struct socfpga_gate_clk *socfpga_clk; + const char *clk_name = node->name; + const char *parent_name[SOCFPGA_MAX_PARENTS]; + struct clk_init_data init; + int rc; + int i = 0; + + socfpga_clk = kzalloc(sizeof(*socfpga_clk), GFP_KERNEL); + if (WARN_ON(!socfpga_clk)) + return; + + rc = of_property_read_u32_array(node, "clk-gate", clk_gate, 2); + if (rc) + clk_gate[0] = 0; + + if (clk_gate[0]) { + socfpga_clk->hw.reg = clk_mgr_a10_base_addr + clk_gate[0]; + socfpga_clk->hw.bit_idx = clk_gate[1]; + + gateclk_ops.enable = clk_gate_ops.enable; + gateclk_ops.disable = clk_gate_ops.disable; + } + + rc = of_property_read_u32(node, "fixed-divider", &fixed_div); + if (rc) + socfpga_clk->fixed_div = 0; + else + socfpga_clk->fixed_div = fixed_div; + + rc = of_property_read_u32_array(node, "div-reg", div_reg, 3); + if (!rc) { + socfpga_clk->div_reg = clk_mgr_a10_base_addr + div_reg[0]; + socfpga_clk->shift = div_reg[1]; + socfpga_clk->width = div_reg[2]; + } else { + socfpga_clk->div_reg = NULL; + } + + rc = of_property_read_u32_array(node, "clk-phase", clk_phase, 2); + if (!rc) { + socfpga_clk->clk_phase[0] = clk_phase[0]; + socfpga_clk->clk_phase[1] = clk_phase[1]; + + socfpga_clk->sys_mgr_base_addr = + syscon_regmap_lookup_by_compatible("altr,sys-mgr"); + if (IS_ERR(socfpga_clk->sys_mgr_base_addr)) { + pr_err("%s: failed to find altr,sys-mgr regmap!\n", + __func__); + return; + } + } + + of_property_read_string(node, "clock-output-names", &clk_name); + + init.name = clk_name; + init.ops = ops; + init.flags = 0; + while (i < SOCFPGA_MAX_PARENTS && (parent_name[i] = + of_clk_get_parent_name(node, i)) != NULL) + i++; + + init.parent_names = parent_name; + init.num_parents = i; + socfpga_clk->hw.hw.init = &init; + + clk = clk_register(NULL, &socfpga_clk->hw.hw); + if (WARN_ON(IS_ERR(clk))) { + kfree(socfpga_clk); + return; + } + rc = of_clk_add_provider(node, of_clk_src_simple_get, clk); + if (WARN_ON(rc)) + return; +} + +void __init socfpga_a10_gate_init(struct device_node *node) +{ + __socfpga_gate_init(node, &gateclk_ops); +} diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c index dd3a78c64795..82449cd76fd7 100644 --- a/drivers/clk/socfpga/clk-gate.c +++ b/drivers/clk/socfpga/clk-gate.c @@ -32,14 +32,10 @@ #define SOCFPGA_MMC_CLK "sdmmc_clk" #define SOCFPGA_GPIO_DB_CLK_OFFSET 0xA8 -#define streq(a, b) (strcmp((a), (b)) == 0) - #define to_socfpga_gate_clk(p) container_of(p, struct socfpga_gate_clk, hw.hw) /* SDMMC Group for System Manager defines */ #define SYSMGR_SDMMCGRP_CTRL_OFFSET 0x108 -#define SYSMGR_SDMMC_CTRL_SET(smplsel, drvsel) \ - ((((smplsel) & 0x7) << 3) | (((drvsel) & 0x7) << 0)) static u8 socfpga_clk_get_parent(struct clk_hw *hwclk) { @@ -194,7 +190,6 @@ static void __init __socfpga_gate_init(struct device_node *node, const char *parent_name[SOCFPGA_MAX_PARENTS]; struct clk_init_data init; int rc; - int i = 0; socfpga_clk = kzalloc(sizeof(*socfpga_clk), GFP_KERNEL); if (WARN_ON(!socfpga_clk)) @@ -224,7 +219,7 @@ static void __init __socfpga_gate_init(struct device_node *node, socfpga_clk->shift = div_reg[1]; socfpga_clk->width = div_reg[2]; } else { - socfpga_clk->div_reg = 0; + socfpga_clk->div_reg = NULL; } rc = of_property_read_u32_array(node, "clk-phase", clk_phase, 2); @@ -238,12 +233,9 @@ static void __init __socfpga_gate_init(struct device_node *node, init.name = clk_name; init.ops = ops; init.flags = 0; - while (i < SOCFPGA_MAX_PARENTS && (parent_name[i] = - of_clk_get_parent_name(node, i)) != NULL) - i++; + init.num_parents = of_clk_parent_fill(node, parent_name, SOCFPGA_MAX_PARENTS); init.parent_names = parent_name; - init.num_parents = i; socfpga_clk->hw.hw.init = &init; clk = clk_register(NULL, &socfpga_clk->hw.hw); diff --git a/drivers/clk/socfpga/clk-periph-a10.c b/drivers/clk/socfpga/clk-periph-a10.c new file mode 100644 index 000000000000..9d0181b5a6a4 --- /dev/null +++ b/drivers/clk/socfpga/clk-periph-a10.c @@ -0,0 +1,138 @@ +/* + * Copyright (C) 2015 Altera Corporation. All rights reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/of.h> + +#include "clk.h" + +#define CLK_MGR_FREE_SHIFT 16 +#define CLK_MGR_FREE_MASK 0x7 + +#define SOCFPGA_MPU_FREE_CLK "mpu_free_clk" +#define SOCFPGA_NOC_FREE_CLK "noc_free_clk" +#define SOCFPGA_SDMMC_FREE_CLK "sdmmc_free_clk" +#define to_socfpga_periph_clk(p) container_of(p, struct socfpga_periph_clk, hw.hw) + +static unsigned long clk_periclk_recalc_rate(struct clk_hw *hwclk, + unsigned long parent_rate) +{ + struct socfpga_periph_clk *socfpgaclk = to_socfpga_periph_clk(hwclk); + u32 div; + + if (socfpgaclk->fixed_div) { + div = socfpgaclk->fixed_div; + } else if (socfpgaclk->div_reg) { + div = readl(socfpgaclk->div_reg) >> socfpgaclk->shift; + div &= div_mask(socfpgaclk->width); + div += 1; + } else { + div = ((readl(socfpgaclk->hw.reg) & 0x7ff) + 1); + } + + return parent_rate / div; +} + +static u8 clk_periclk_get_parent(struct clk_hw *hwclk) +{ + struct socfpga_periph_clk *socfpgaclk = to_socfpga_periph_clk(hwclk); + u32 clk_src; + + clk_src = readl(socfpgaclk->hw.reg); + if (streq(hwclk->init->name, SOCFPGA_MPU_FREE_CLK) || + streq(hwclk->init->name, SOCFPGA_NOC_FREE_CLK) || + streq(hwclk->init->name, SOCFPGA_SDMMC_FREE_CLK)) + return (clk_src >> CLK_MGR_FREE_SHIFT) & + CLK_MGR_FREE_MASK; + else + return 0; +} + +static const struct clk_ops periclk_ops = { + .recalc_rate = clk_periclk_recalc_rate, + .get_parent = clk_periclk_get_parent, +}; + +static __init void __socfpga_periph_init(struct device_node *node, + const struct clk_ops *ops) +{ + u32 reg; + struct clk *clk; + struct socfpga_periph_clk *periph_clk; + const char *clk_name = node->name; + const char *parent_name; + struct clk_init_data init; + int rc; + u32 fixed_div; + u32 div_reg[3]; + + of_property_read_u32(node, "reg", ®); + + periph_clk = kzalloc(sizeof(*periph_clk), GFP_KERNEL); + if (WARN_ON(!periph_clk)) + return; + + periph_clk->hw.reg = clk_mgr_a10_base_addr + reg; + + rc = of_property_read_u32_array(node, "div-reg", div_reg, 3); + if (!rc) { + periph_clk->div_reg = clk_mgr_a10_base_addr + div_reg[0]; + periph_clk->shift = div_reg[1]; + periph_clk->width = div_reg[2]; + } else { + periph_clk->div_reg = NULL; + } + + rc = of_property_read_u32(node, "fixed-divider", &fixed_div); + if (rc) + periph_clk->fixed_div = 0; + else + periph_clk->fixed_div = fixed_div; + + of_property_read_string(node, "clock-output-names", &clk_name); + + init.name = clk_name; + init.ops = ops; + init.flags = 0; + + parent_name = of_clk_get_parent_name(node, 0); + init.num_parents = 1; + init.parent_names = &parent_name; + + periph_clk->hw.hw.init = &init; + + clk = clk_register(NULL, &periph_clk->hw.hw); + if (WARN_ON(IS_ERR(clk))) { + kfree(periph_clk); + return; + } + rc = of_clk_add_provider(node, of_clk_src_simple_get, clk); + if (rc < 0) { + pr_err("Could not register clock provider for node:%s\n", + clk_name); + goto err_clk; + } + + return; + +err_clk: + clk_unregister(clk); +} + +void __init socfpga_a10_periph_init(struct device_node *node) +{ + __socfpga_periph_init(node, &periclk_ops); +} diff --git a/drivers/clk/socfpga/clk-periph.c b/drivers/clk/socfpga/clk-periph.c index 46531c34ec9b..83aeaa219d14 100644 --- a/drivers/clk/socfpga/clk-periph.c +++ b/drivers/clk/socfpga/clk-periph.c @@ -76,7 +76,7 @@ static __init void __socfpga_periph_init(struct device_node *node, periph_clk->shift = div_reg[1]; periph_clk->width = div_reg[2]; } else { - periph_clk->div_reg = 0; + periph_clk->div_reg = NULL; } rc = of_property_read_u32(node, "fixed-divider", &fixed_div); diff --git a/drivers/clk/socfpga/clk-pll-a10.c b/drivers/clk/socfpga/clk-pll-a10.c new file mode 100644 index 000000000000..1178b11babca --- /dev/null +++ b/drivers/clk/socfpga/clk-pll-a10.c @@ -0,0 +1,129 @@ +/* + * Copyright (C) 2015 Altera Corporation. All rights reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> + +#include "clk.h" + +/* Clock Manager offsets */ +#define CLK_MGR_PLL_CLK_SRC_SHIFT 8 +#define CLK_MGR_PLL_CLK_SRC_MASK 0x3 + +/* Clock bypass bits */ +#define SOCFPGA_PLL_BG_PWRDWN 0 +#define SOCFPGA_PLL_PWR_DOWN 1 +#define SOCFPGA_PLL_EXT_ENA 2 +#define SOCFPGA_PLL_DIVF_MASK 0x00001FFF +#define SOCFPGA_PLL_DIVF_SHIFT 0 +#define SOCFPGA_PLL_DIVQ_MASK 0x003F0000 +#define SOCFPGA_PLL_DIVQ_SHIFT 16 +#define SOCFGPA_MAX_PARENTS 5 + +#define SOCFPGA_MAIN_PLL_CLK "main_pll" +#define SOCFPGA_PERIP_PLL_CLK "periph_pll" + +#define to_socfpga_clk(p) container_of(p, struct socfpga_pll, hw.hw) + +void __iomem *clk_mgr_a10_base_addr; + +static unsigned long clk_pll_recalc_rate(struct clk_hw *hwclk, + unsigned long parent_rate) +{ + struct socfpga_pll *socfpgaclk = to_socfpga_clk(hwclk); + unsigned long divf, divq, reg; + unsigned long long vco_freq; + + /* read VCO1 reg for numerator and denominator */ + reg = readl(socfpgaclk->hw.reg + 0x4); + divf = (reg & SOCFPGA_PLL_DIVF_MASK) >> SOCFPGA_PLL_DIVF_SHIFT; + divq = (reg & SOCFPGA_PLL_DIVQ_MASK) >> SOCFPGA_PLL_DIVQ_SHIFT; + vco_freq = (unsigned long long)parent_rate * (divf + 1); + do_div(vco_freq, (1 + divq)); + return (unsigned long)vco_freq; +} + +static u8 clk_pll_get_parent(struct clk_hw *hwclk) +{ + struct socfpga_pll *socfpgaclk = to_socfpga_clk(hwclk); + u32 pll_src; + + pll_src = readl(socfpgaclk->hw.reg); + + return (pll_src >> CLK_MGR_PLL_CLK_SRC_SHIFT) & + CLK_MGR_PLL_CLK_SRC_MASK; +} + +static struct clk_ops clk_pll_ops = { + .recalc_rate = clk_pll_recalc_rate, + .get_parent = clk_pll_get_parent, +}; + +static struct __init clk * __socfpga_pll_init(struct device_node *node, + const struct clk_ops *ops) +{ + u32 reg; + struct clk *clk; + struct socfpga_pll *pll_clk; + const char *clk_name = node->name; + const char *parent_name[SOCFGPA_MAX_PARENTS]; + struct clk_init_data init; + struct device_node *clkmgr_np; + int rc; + int i = 0; + + of_property_read_u32(node, "reg", ®); + + pll_clk = kzalloc(sizeof(*pll_clk), GFP_KERNEL); + if (WARN_ON(!pll_clk)) + return NULL; + + clkmgr_np = of_find_compatible_node(NULL, NULL, "altr,clk-mgr"); + clk_mgr_a10_base_addr = of_iomap(clkmgr_np, 0); + BUG_ON(!clk_mgr_a10_base_addr); + pll_clk->hw.reg = clk_mgr_a10_base_addr + reg; + + of_property_read_string(node, "clock-output-names", &clk_name); + + init.name = clk_name; + init.ops = ops; + init.flags = 0; + + while (i < SOCFGPA_MAX_PARENTS && (parent_name[i] = + of_clk_get_parent_name(node, i)) != NULL) + i++; + init.num_parents = i; + init.parent_names = parent_name; + pll_clk->hw.hw.init = &init; + + pll_clk->hw.bit_idx = SOCFPGA_PLL_EXT_ENA; + clk_pll_ops.enable = clk_gate_ops.enable; + clk_pll_ops.disable = clk_gate_ops.disable; + + clk = clk_register(NULL, &pll_clk->hw.hw); + if (WARN_ON(IS_ERR(clk))) { + kfree(pll_clk); + return NULL; + } + rc = of_clk_add_provider(node, of_clk_src_simple_get, clk); + return clk; +} + +void __init socfpga_a10_pll_init(struct device_node *node) +{ + __socfpga_pll_init(node, &clk_pll_ops); +} diff --git a/drivers/clk/socfpga/clk-pll.c b/drivers/clk/socfpga/clk-pll.c index de6da957a09d..8f26b5234947 100644 --- a/drivers/clk/socfpga/clk-pll.c +++ b/drivers/clk/socfpga/clk-pll.c @@ -92,7 +92,6 @@ static __init struct clk *__socfpga_pll_init(struct device_node *node, struct clk_init_data init; struct device_node *clkmgr_np; int rc; - int i = 0; of_property_read_u32(node, "reg", ®); @@ -111,11 +110,7 @@ static __init struct clk *__socfpga_pll_init(struct device_node *node, init.ops = ops; init.flags = 0; - while (i < SOCFPGA_MAX_PARENTS && (parent_name[i] = - of_clk_get_parent_name(node, i)) != NULL) - i++; - - init.num_parents = i; + init.num_parents = of_clk_parent_fill(node, parent_name, SOCFPGA_MAX_PARENTS); init.parent_names = parent_name; pll_clk->hw.hw.init = &init; diff --git a/drivers/clk/socfpga/clk.c b/drivers/clk/socfpga/clk.c index 43db947e5f0e..7564d2e35f32 100644 --- a/drivers/clk/socfpga/clk.c +++ b/drivers/clk/socfpga/clk.c @@ -24,4 +24,9 @@ CLK_OF_DECLARE(socfpga_pll_clk, "altr,socfpga-pll-clock", socfpga_pll_init); CLK_OF_DECLARE(socfpga_perip_clk, "altr,socfpga-perip-clk", socfpga_periph_init); CLK_OF_DECLARE(socfpga_gate_clk, "altr,socfpga-gate-clk", socfpga_gate_init); - +CLK_OF_DECLARE(socfpga_a10_pll_clk, "altr,socfpga-a10-pll-clock", + socfpga_a10_pll_init); +CLK_OF_DECLARE(socfpga_a10_perip_clk, "altr,socfpga-a10-perip-clk", + socfpga_a10_periph_init); +CLK_OF_DECLARE(socfpga_a10_gate_clk, "altr,socfpga-a10-gate-clk", + socfpga_a10_gate_init); diff --git a/drivers/clk/socfpga/clk.h b/drivers/clk/socfpga/clk.h index d291f60c46e1..603973ab7e29 100644 --- a/drivers/clk/socfpga/clk.h +++ b/drivers/clk/socfpga/clk.h @@ -26,14 +26,22 @@ #define CLKMGR_L4SRC 0x70 #define CLKMGR_PERPLL_SRC 0xAC -#define SOCFPGA_MAX_PARENTS 3 +#define SOCFPGA_MAX_PARENTS 5 #define div_mask(width) ((1 << (width)) - 1) +#define streq(a, b) (strcmp((a), (b)) == 0) +#define SYSMGR_SDMMC_CTRL_SET(smplsel, drvsel) \ + ((((smplsel) & 0x7) << 3) | (((drvsel) & 0x7) << 0)) + extern void __iomem *clk_mgr_base_addr; +extern void __iomem *clk_mgr_a10_base_addr; void __init socfpga_pll_init(struct device_node *node); void __init socfpga_periph_init(struct device_node *node); void __init socfpga_gate_init(struct device_node *node); +void socfpga_a10_pll_init(struct device_node *node); +void socfpga_a10_periph_init(struct device_node *node); +void socfpga_a10_gate_init(struct device_node *node); struct socfpga_pll { struct clk_gate hw; @@ -44,6 +52,7 @@ struct socfpga_gate_clk { char *parent_name; u32 fixed_div; void __iomem *div_reg; + struct regmap *sys_mgr_base_addr; u32 width; /* only valid if div_reg != 0 */ u32 shift; /* only valid if div_reg != 0 */ u32 clk_phase[2]; diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c index bf12a25eb3a2..657ca14ba709 100644 --- a/drivers/clk/st/clk-flexgen.c +++ b/drivers/clk/st/clk-flexgen.c @@ -116,7 +116,7 @@ static long flexgen_round_rate(struct clk_hw *hw, unsigned long rate, return *prate / div; } -unsigned long flexgen_recalc_rate(struct clk_hw *hw, +static unsigned long flexgen_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { struct flexgen *flexgen = to_flexgen(hw); @@ -174,7 +174,7 @@ static const struct clk_ops flexgen_ops = { .set_rate = flexgen_set_rate, }; -struct clk *clk_register_flexgen(const char *name, +static struct clk *clk_register_flexgen(const char *name, const char **parent_names, u8 num_parents, void __iomem *reg, spinlock_t *lock, u32 idx, unsigned long flexgen_flags) { @@ -245,7 +245,7 @@ static const char ** __init flexgen_get_parents(struct device_node *np, const char **parents; int nparents, i; - nparents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + nparents = of_clk_get_parent_count(np); if (WARN_ON(nparents <= 0)) return NULL; @@ -260,7 +260,7 @@ static const char ** __init flexgen_get_parents(struct device_node *np, return parents; } -void __init st_of_flexgen_setup(struct device_node *np) +static void __init st_of_flexgen_setup(struct device_node *np) { struct device_node *pnode; void __iomem *reg; diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c index a917c4c7eaa9..e94197f04b0b 100644 --- a/drivers/clk/st/clkgen-fsyn.c +++ b/drivers/clk/st/clkgen-fsyn.c @@ -492,7 +492,7 @@ static int quadfs_pll_is_enabled(struct clk_hw *hw) return !!npda; } -int clk_fs660c32_vco_get_rate(unsigned long input, struct stm_fs *fs, +static int clk_fs660c32_vco_get_rate(unsigned long input, struct stm_fs *fs, unsigned long *rate) { unsigned long nd = fs->ndiv + 16; /* ndiv value */ @@ -519,7 +519,7 @@ static unsigned long quadfs_pll_fs660c32_recalc_rate(struct clk_hw *hw, return rate; } -int clk_fs660c32_vco_get_params(unsigned long input, +static int clk_fs660c32_vco_get_params(unsigned long input, unsigned long output, struct stm_fs *fs) { /* Formula diff --git a/drivers/clk/st/clkgen-mux.c b/drivers/clk/st/clkgen-mux.c index fdcff10f6d30..4fbe6e099587 100644 --- a/drivers/clk/st/clkgen-mux.c +++ b/drivers/clk/st/clkgen-mux.c @@ -26,7 +26,7 @@ static const char ** __init clkgen_mux_get_parents(struct device_node *np, const char **parents; int nparents, i; - nparents = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + nparents = of_clk_get_parent_count(np); if (WARN_ON(nparents <= 0)) return ERR_PTR(-EINVAL); @@ -131,7 +131,7 @@ static int clkgena_divmux_is_enabled(struct clk_hw *hw) return (s8)clk_mux_ops.get_parent(mux_hw) > 0; } -u8 clkgena_divmux_get_parent(struct clk_hw *hw) +static u8 clkgena_divmux_get_parent(struct clk_hw *hw) { struct clkgena_divmux *genamux = to_clkgena_divmux(hw); struct clk_hw *mux_hw = &genamux->mux.hw; @@ -168,7 +168,7 @@ static int clkgena_divmux_set_parent(struct clk_hw *hw, u8 index) return 0; } -unsigned long clkgena_divmux_recalc_rate(struct clk_hw *hw, +static unsigned long clkgena_divmux_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { struct clkgena_divmux *genamux = to_clkgena_divmux(hw); @@ -215,7 +215,7 @@ static const struct clk_ops clkgena_divmux_ops = { /** * clk_register_genamux - register a genamux clock with the clock framework */ -struct clk *clk_register_genamux(const char *name, +static struct clk *clk_register_genamux(const char *name, const char **parent_names, u8 num_parents, void __iomem *reg, const struct clkgena_divmux_data *muxdata, @@ -385,7 +385,7 @@ static void __iomem * __init clkgen_get_register_base( return reg; } -void __init st_of_clkgena_divmux_setup(struct device_node *np) +static void __init st_of_clkgena_divmux_setup(struct device_node *np) { const struct of_device_id *match; const struct clkgena_divmux_data *data; @@ -485,7 +485,7 @@ static const struct of_device_id clkgena_prediv_of_match[] = { {} }; -void __init st_of_clkgena_prediv_setup(struct device_node *np) +static void __init st_of_clkgena_prediv_setup(struct device_node *np) { const struct of_device_id *match; void __iomem *reg; @@ -622,7 +622,7 @@ static const struct of_device_id mux_of_match[] = { {} }; -void __init st_of_clkgen_mux_setup(struct device_node *np) +static void __init st_of_clkgen_mux_setup(struct device_node *np) { const struct of_device_id *match; struct clk *clk; @@ -699,7 +699,7 @@ static const struct of_device_id vcc_of_match[] = { {} }; -void __init st_of_clkgen_vcc_setup(struct device_node *np) +static void __init st_of_clkgen_vcc_setup(struct device_node *np) { const struct of_device_id *match; void __iomem *reg; diff --git a/drivers/clk/st/clkgen-pll.c b/drivers/clk/st/clkgen-pll.c index d204ba85db3a..106532207213 100644 --- a/drivers/clk/st/clkgen-pll.c +++ b/drivers/clk/st/clkgen-pll.c @@ -270,7 +270,7 @@ static int clkgen_pll_is_enabled(struct clk_hw *hw) return !poweroff; } -unsigned long recalc_stm_pll800c65(struct clk_hw *hw, +static unsigned long recalc_stm_pll800c65(struct clk_hw *hw, unsigned long parent_rate) { struct clkgen_pll *pll = to_clkgen_pll(hw); @@ -297,7 +297,7 @@ unsigned long recalc_stm_pll800c65(struct clk_hw *hw, } -unsigned long recalc_stm_pll1600c65(struct clk_hw *hw, +static unsigned long recalc_stm_pll1600c65(struct clk_hw *hw, unsigned long parent_rate) { struct clkgen_pll *pll = to_clkgen_pll(hw); @@ -321,7 +321,7 @@ unsigned long recalc_stm_pll1600c65(struct clk_hw *hw, return rate; } -unsigned long recalc_stm_pll3200c32(struct clk_hw *hw, +static unsigned long recalc_stm_pll3200c32(struct clk_hw *hw, unsigned long parent_rate) { struct clkgen_pll *pll = to_clkgen_pll(hw); @@ -343,7 +343,7 @@ unsigned long recalc_stm_pll3200c32(struct clk_hw *hw, return rate; } -unsigned long recalc_stm_pll1200c32(struct clk_hw *hw, +static unsigned long recalc_stm_pll1200c32(struct clk_hw *hw, unsigned long parent_rate) { struct clkgen_pll *pll = to_clkgen_pll(hw); @@ -544,7 +544,7 @@ CLK_OF_DECLARE(clkgena_c65_plls, "st,clkgena-plls-c65", clkgena_c65_pll_setup); static struct clk * __init clkgen_odf_register(const char *parent_name, - void * __iomem reg, + void __iomem *reg, struct clkgen_pll_data *pll_data, int odf, spinlock_t *odf_lock, diff --git a/drivers/clk/sunxi/clk-mod0.c b/drivers/clk/sunxi/clk-mod0.c index ec8f5a1fca09..9d028aec58e5 100644 --- a/drivers/clk/sunxi/clk-mod0.c +++ b/drivers/clk/sunxi/clk-mod0.c @@ -128,7 +128,7 @@ static struct platform_driver sun4i_a10_mod0_clk_driver = { }, .probe = sun4i_a10_mod0_clk_probe, }; -module_platform_driver(sun4i_a10_mod0_clk_driver); +builtin_platform_driver(sun4i_a10_mod0_clk_driver); static const struct factors_data sun9i_a80_mod0_data __initconst = { .enable = 31, diff --git a/drivers/clk/sunxi/clk-sun9i-core.c b/drivers/clk/sunxi/clk-sun9i-core.c index d8da77d72861..887f4ea161bb 100644 --- a/drivers/clk/sunxi/clk-sun9i-core.c +++ b/drivers/clk/sunxi/clk-sun9i-core.c @@ -93,7 +93,7 @@ static void __init sun9i_a80_pll4_setup(struct device_node *node) void __iomem *reg; reg = of_io_request_and_map(node, 0, of_node_full_name(node)); - if (!reg) { + if (IS_ERR(reg)) { pr_err("Could not get registers for a80-pll4-clk: %s\n", node->name); return; @@ -154,7 +154,7 @@ static void __init sun9i_a80_gt_setup(struct device_node *node) struct clk *gt; reg = of_io_request_and_map(node, 0, of_node_full_name(node)); - if (!reg) { + if (IS_ERR(reg)) { pr_err("Could not get registers for a80-gt-clk: %s\n", node->name); return; @@ -218,7 +218,7 @@ static void __init sun9i_a80_ahb_setup(struct device_node *node) void __iomem *reg; reg = of_io_request_and_map(node, 0, of_node_full_name(node)); - if (!reg) { + if (IS_ERR(reg)) { pr_err("Could not get registers for a80-ahb-clk: %s\n", node->name); return; @@ -244,7 +244,7 @@ static void __init sun9i_a80_apb0_setup(struct device_node *node) void __iomem *reg; reg = of_io_request_and_map(node, 0, of_node_full_name(node)); - if (!reg) { + if (IS_ERR(reg)) { pr_err("Could not get registers for a80-apb0-clk: %s\n", node->name); return; @@ -310,7 +310,7 @@ static void __init sun9i_a80_apb1_setup(struct device_node *node) void __iomem *reg; reg = of_io_request_and_map(node, 0, of_node_full_name(node)); - if (!reg) { + if (IS_ERR(reg)) { pr_err("Could not get registers for a80-apb1-clk: %s\n", node->name); return; diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index 6d25e4e9dfec..abf7b37faf73 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -198,6 +198,8 @@ static void __init sun6i_ahb1_clk_setup(struct device_node *node) int i = 0; reg = of_io_request_and_map(node, 0, of_node_full_name(node)); + if (IS_ERR(reg)) + return; /* we have a mux, we will have >1 parents */ while (i < SUN6I_AHB1_MAX_PARENTS && diff --git a/drivers/clk/sunxi/clk-usb.c b/drivers/clk/sunxi/clk-usb.c index a86ed2f8d7af..3a25f9588e67 100644 --- a/drivers/clk/sunxi/clk-usb.c +++ b/drivers/clk/sunxi/clk-usb.c @@ -204,6 +204,17 @@ static void __init sun6i_a31_usb_setup(struct device_node *node) } CLK_OF_DECLARE(sun6i_a31_usb, "allwinner,sun6i-a31-usb-clk", sun6i_a31_usb_setup); +static const struct usb_clk_data sun8i_a23_usb_clk_data __initconst = { + .clk_mask = BIT(16) | BIT(11) | BIT(10) | BIT(9) | BIT(8), + .reset_mask = BIT(2) | BIT(1) | BIT(0), +}; + +static void __init sun8i_a23_usb_setup(struct device_node *node) +{ + sunxi_usb_clk_setup(node, &sun8i_a23_usb_clk_data, &sun4i_a10_usb_lock); +} +CLK_OF_DECLARE(sun8i_a23_usb, "allwinner,sun8i-a23-usb-clk", sun8i_a23_usb_setup); + static const struct usb_clk_data sun9i_a80_usb_mod_data __initconst = { .clk_mask = BIT(6) | BIT(5) | BIT(4) | BIT(3) | BIT(2) | BIT(1), .reset_mask = BIT(19) | BIT(18) | BIT(17), diff --git a/drivers/clk/tegra/Kconfig b/drivers/clk/tegra/Kconfig new file mode 100644 index 000000000000..1ba30d1e14f2 --- /dev/null +++ b/drivers/clk/tegra/Kconfig @@ -0,0 +1,3 @@ +config TEGRA_CLK_EMC + def_bool y + depends on TEGRA124_EMC diff --git a/drivers/clk/tegra/Makefile b/drivers/clk/tegra/Makefile index edb8358fa6ce..aec862ba7a17 100644 --- a/drivers/clk/tegra/Makefile +++ b/drivers/clk/tegra/Makefile @@ -11,6 +11,7 @@ obj-y += clk-tegra-periph.o obj-y += clk-tegra-pmc.o obj-y += clk-tegra-fixed.o obj-y += clk-tegra-super-gen4.o +obj-$(CONFIG_TEGRA_CLK_EMC) += clk-emc.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += clk-tegra20.o obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += clk-tegra30.o obj-$(CONFIG_ARCH_TEGRA_114_SOC) += clk-tegra114.o diff --git a/drivers/clk/tegra/clk-emc.c b/drivers/clk/tegra/clk-emc.c new file mode 100644 index 000000000000..7649685c86bc --- /dev/null +++ b/drivers/clk/tegra/clk-emc.c @@ -0,0 +1,538 @@ +/* + * drivers/clk/tegra/clk-emc.c + * + * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. + * + * Author: + * Mikko Perttunen <mperttunen@nvidia.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk-provider.h> +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/of_address.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/sort.h> +#include <linux/string.h> + +#include <soc/tegra/fuse.h> +#include <soc/tegra/emc.h> + +#include "clk.h" + +#define CLK_SOURCE_EMC 0x19c + +#define CLK_SOURCE_EMC_EMC_2X_CLK_DIVISOR_SHIFT 0 +#define CLK_SOURCE_EMC_EMC_2X_CLK_DIVISOR_MASK 0xff +#define CLK_SOURCE_EMC_EMC_2X_CLK_DIVISOR(x) (((x) & CLK_SOURCE_EMC_EMC_2X_CLK_DIVISOR_MASK) << \ + CLK_SOURCE_EMC_EMC_2X_CLK_DIVISOR_SHIFT) + +#define CLK_SOURCE_EMC_EMC_2X_CLK_SRC_SHIFT 29 +#define CLK_SOURCE_EMC_EMC_2X_CLK_SRC_MASK 0x7 +#define CLK_SOURCE_EMC_EMC_2X_CLK_SRC(x) (((x) & CLK_SOURCE_EMC_EMC_2X_CLK_SRC_MASK) << \ + CLK_SOURCE_EMC_EMC_2X_CLK_SRC_SHIFT) + +static const char * const emc_parent_clk_names[] = { + "pll_m", "pll_c", "pll_p", "clk_m", "pll_m_ud", + "pll_c2", "pll_c3", "pll_c_ud" +}; + +/* + * List of clock sources for various parents the EMC clock can have. + * When we change the timing to a timing with a parent that has the same + * clock source as the current parent, we must first change to a backup + * timing that has a different clock source. + */ + +#define EMC_SRC_PLL_M 0 +#define EMC_SRC_PLL_C 1 +#define EMC_SRC_PLL_P 2 +#define EMC_SRC_CLK_M 3 +#define EMC_SRC_PLL_C2 4 +#define EMC_SRC_PLL_C3 5 + +static const char emc_parent_clk_sources[] = { + EMC_SRC_PLL_M, EMC_SRC_PLL_C, EMC_SRC_PLL_P, EMC_SRC_CLK_M, + EMC_SRC_PLL_M, EMC_SRC_PLL_C2, EMC_SRC_PLL_C3, EMC_SRC_PLL_C +}; + +struct emc_timing { + unsigned long rate, parent_rate; + u8 parent_index; + struct clk *parent; + u32 ram_code; +}; + +struct tegra_clk_emc { + struct clk_hw hw; + void __iomem *clk_regs; + struct clk *prev_parent; + bool changing_timing; + + struct device_node *emc_node; + struct tegra_emc *emc; + + int num_timings; + struct emc_timing *timings; + spinlock_t *lock; +}; + +/* Common clock framework callback implementations */ + +static unsigned long emc_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct tegra_clk_emc *tegra; + u32 val, div; + + tegra = container_of(hw, struct tegra_clk_emc, hw); + + /* + * CCF wrongly assumes that the parent won't change during set_rate, + * so get the parent rate explicitly. + */ + parent_rate = __clk_get_rate(__clk_get_parent(hw->clk)); + + val = readl(tegra->clk_regs + CLK_SOURCE_EMC); + div = val & CLK_SOURCE_EMC_EMC_2X_CLK_DIVISOR_MASK; + + return parent_rate / (div + 2) * 2; +} + +/* + * Rounds up unless no higher rate exists, in which case down. This way is + * safer since things have EMC rate floors. Also don't touch parent_rate + * since we don't want the CCF to play with our parent clocks. + */ +static long emc_determine_rate(struct clk_hw *hw, unsigned long rate, + unsigned long min_rate, + unsigned long max_rate, + unsigned long *best_parent_rate, + struct clk_hw **best_parent_hw) +{ + struct tegra_clk_emc *tegra; + u8 ram_code = tegra_read_ram_code(); + struct emc_timing *timing = NULL; + int i; + + tegra = container_of(hw, struct tegra_clk_emc, hw); + + for (i = 0; i < tegra->num_timings; i++) { + if (tegra->timings[i].ram_code != ram_code) + continue; + + timing = tegra->timings + i; + + if (timing->rate > max_rate) { + i = min(i, 1); + return tegra->timings[i - 1].rate; + } + + if (timing->rate < min_rate) + continue; + + if (timing->rate >= rate) + return timing->rate; + } + + if (timing) + return timing->rate; + + return __clk_get_rate(hw->clk); +} + +static u8 emc_get_parent(struct clk_hw *hw) +{ + struct tegra_clk_emc *tegra; + u32 val; + + tegra = container_of(hw, struct tegra_clk_emc, hw); + + val = readl(tegra->clk_regs + CLK_SOURCE_EMC); + + return (val >> CLK_SOURCE_EMC_EMC_2X_CLK_SRC_SHIFT) + & CLK_SOURCE_EMC_EMC_2X_CLK_SRC_MASK; +} + +static struct tegra_emc *emc_ensure_emc_driver(struct tegra_clk_emc *tegra) +{ + struct platform_device *pdev; + + if (tegra->emc) + return tegra->emc; + + if (!tegra->emc_node) + return NULL; + + pdev = of_find_device_by_node(tegra->emc_node); + if (!pdev) { + pr_err("%s: could not get external memory controller\n", + __func__); + return NULL; + } + + of_node_put(tegra->emc_node); + tegra->emc_node = NULL; + + tegra->emc = platform_get_drvdata(pdev); + if (!tegra->emc) { + pr_err("%s: cannot find EMC driver\n", __func__); + return NULL; + } + + return tegra->emc; +} + +static int emc_set_timing(struct tegra_clk_emc *tegra, + struct emc_timing *timing) +{ + int err; + u8 div; + u32 car_value; + unsigned long flags = 0; + struct tegra_emc *emc = emc_ensure_emc_driver(tegra); + + if (!emc) + return -ENOENT; + + pr_debug("going to rate %ld prate %ld p %s\n", timing->rate, + timing->parent_rate, __clk_get_name(timing->parent)); + + if (emc_get_parent(&tegra->hw) == timing->parent_index && + clk_get_rate(timing->parent) != timing->parent_rate) { + BUG(); + return -EINVAL; + } + + tegra->changing_timing = true; + + err = clk_set_rate(timing->parent, timing->parent_rate); + if (err) { + pr_err("cannot change parent %s rate to %ld: %d\n", + __clk_get_name(timing->parent), timing->parent_rate, + err); + + return err; + } + + err = clk_prepare_enable(timing->parent); + if (err) { + pr_err("cannot enable parent clock: %d\n", err); + return err; + } + + div = timing->parent_rate / (timing->rate / 2) - 2; + + err = tegra_emc_prepare_timing_change(emc, timing->rate); + if (err) + return err; + + spin_lock_irqsave(tegra->lock, flags); + + car_value = readl(tegra->clk_regs + CLK_SOURCE_EMC); + + car_value &= ~CLK_SOURCE_EMC_EMC_2X_CLK_SRC(~0); + car_value |= CLK_SOURCE_EMC_EMC_2X_CLK_SRC(timing->parent_index); + + car_value &= ~CLK_SOURCE_EMC_EMC_2X_CLK_DIVISOR(~0); + car_value |= CLK_SOURCE_EMC_EMC_2X_CLK_DIVISOR(div); + + writel(car_value, tegra->clk_regs + CLK_SOURCE_EMC); + + spin_unlock_irqrestore(tegra->lock, flags); + + tegra_emc_complete_timing_change(emc, timing->rate); + + clk_hw_reparent(&tegra->hw, __clk_get_hw(timing->parent)); + clk_disable_unprepare(tegra->prev_parent); + + tegra->prev_parent = timing->parent; + tegra->changing_timing = false; + + return 0; +} + +/* + * Get backup timing to use as an intermediate step when a change between + * two timings with the same clock source has been requested. First try to + * find a timing with a higher clock rate to avoid a rate below any set rate + * floors. If that is not possible, find a lower rate. + */ +static struct emc_timing *get_backup_timing(struct tegra_clk_emc *tegra, + int timing_index) +{ + int i; + u32 ram_code = tegra_read_ram_code(); + struct emc_timing *timing; + + for (i = timing_index+1; i < tegra->num_timings; i++) { + timing = tegra->timings + i; + if (timing->ram_code != ram_code) + continue; + + if (emc_parent_clk_sources[timing->parent_index] != + emc_parent_clk_sources[ + tegra->timings[timing_index].parent_index]) + return timing; + } + + for (i = timing_index-1; i >= 0; --i) { + timing = tegra->timings + i; + if (timing->ram_code != ram_code) + continue; + + if (emc_parent_clk_sources[timing->parent_index] != + emc_parent_clk_sources[ + tegra->timings[timing_index].parent_index]) + return timing; + } + + return NULL; +} + +static int emc_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct tegra_clk_emc *tegra; + struct emc_timing *timing = NULL; + int i, err; + u32 ram_code = tegra_read_ram_code(); + + tegra = container_of(hw, struct tegra_clk_emc, hw); + + if (__clk_get_rate(hw->clk) == rate) + return 0; + + /* + * When emc_set_timing changes the parent rate, CCF will propagate + * that downward to us, so ignore any set_rate calls while a rate + * change is already going on. + */ + if (tegra->changing_timing) + return 0; + + for (i = 0; i < tegra->num_timings; i++) { + if (tegra->timings[i].rate == rate && + tegra->timings[i].ram_code == ram_code) { + timing = tegra->timings + i; + break; + } + } + + if (!timing) { + pr_err("cannot switch to rate %ld without emc table\n", rate); + return -EINVAL; + } + + if (emc_parent_clk_sources[emc_get_parent(hw)] == + emc_parent_clk_sources[timing->parent_index] && + clk_get_rate(timing->parent) != timing->parent_rate) { + /* + * Parent clock source not changed but parent rate has changed, + * need to temporarily switch to another parent + */ + + struct emc_timing *backup_timing; + + backup_timing = get_backup_timing(tegra, i); + if (!backup_timing) { + pr_err("cannot find backup timing\n"); + return -EINVAL; + } + + pr_debug("using %ld as backup rate when going to %ld\n", + backup_timing->rate, rate); + + err = emc_set_timing(tegra, backup_timing); + if (err) { + pr_err("cannot set backup timing: %d\n", err); + return err; + } + } + + return emc_set_timing(tegra, timing); +} + +/* Initialization and deinitialization */ + +static int load_one_timing_from_dt(struct tegra_clk_emc *tegra, + struct emc_timing *timing, + struct device_node *node) +{ + int err, i; + u32 tmp; + + err = of_property_read_u32(node, "clock-frequency", &tmp); + if (err) { + pr_err("timing %s: failed to read rate\n", node->full_name); + return err; + } + + timing->rate = tmp; + + err = of_property_read_u32(node, "nvidia,parent-clock-frequency", &tmp); + if (err) { + pr_err("timing %s: failed to read parent rate\n", + node->full_name); + return err; + } + + timing->parent_rate = tmp; + + timing->parent = of_clk_get_by_name(node, "emc-parent"); + if (IS_ERR(timing->parent)) { + pr_err("timing %s: failed to get parent clock\n", + node->full_name); + return PTR_ERR(timing->parent); + } + + timing->parent_index = 0xff; + for (i = 0; i < ARRAY_SIZE(emc_parent_clk_names); i++) { + if (!strcmp(emc_parent_clk_names[i], + __clk_get_name(timing->parent))) { + timing->parent_index = i; + break; + } + } + if (timing->parent_index == 0xff) { + pr_err("timing %s: %s is not a valid parent\n", + node->full_name, __clk_get_name(timing->parent)); + clk_put(timing->parent); + return -EINVAL; + } + + return 0; +} + +static int cmp_timings(const void *_a, const void *_b) +{ + const struct emc_timing *a = _a; + const struct emc_timing *b = _b; + + if (a->rate < b->rate) + return -1; + else if (a->rate == b->rate) + return 0; + else + return 1; +} + +static int load_timings_from_dt(struct tegra_clk_emc *tegra, + struct device_node *node, + u32 ram_code) +{ + struct device_node *child; + int child_count = of_get_child_count(node); + int i = 0, err; + + tegra->timings = kcalloc(child_count, sizeof(struct emc_timing), + GFP_KERNEL); + if (!tegra->timings) + return -ENOMEM; + + tegra->num_timings = child_count; + + for_each_child_of_node(node, child) { + struct emc_timing *timing = tegra->timings + (i++); + + err = load_one_timing_from_dt(tegra, timing, child); + if (err) + return err; + + timing->ram_code = ram_code; + } + + sort(tegra->timings, tegra->num_timings, sizeof(struct emc_timing), + cmp_timings, NULL); + + return 0; +} + +static const struct clk_ops tegra_clk_emc_ops = { + .recalc_rate = emc_recalc_rate, + .determine_rate = emc_determine_rate, + .set_rate = emc_set_rate, + .get_parent = emc_get_parent, +}; + +struct clk *tegra_clk_register_emc(void __iomem *base, struct device_node *np, + spinlock_t *lock) +{ + struct tegra_clk_emc *tegra; + struct clk_init_data init; + struct device_node *node; + u32 node_ram_code; + struct clk *clk; + int err; + + tegra = kcalloc(1, sizeof(*tegra), GFP_KERNEL); + if (!tegra) + return ERR_PTR(-ENOMEM); + + tegra->clk_regs = base; + tegra->lock = lock; + + tegra->num_timings = 0; + + for_each_child_of_node(np, node) { + err = of_property_read_u32(node, "nvidia,ram-code", + &node_ram_code); + if (err) { + of_node_put(node); + continue; + } + + /* + * Store timings for all ram codes as we cannot read the + * fuses until the apbmisc driver is loaded. + */ + err = load_timings_from_dt(tegra, node, node_ram_code); + if (err) + return ERR_PTR(err); + of_node_put(node); + break; + } + + if (tegra->num_timings == 0) + pr_warn("%s: no memory timings registered\n", __func__); + + tegra->emc_node = of_parse_phandle(np, + "nvidia,external-memory-controller", 0); + if (!tegra->emc_node) + pr_warn("%s: couldn't find node for EMC driver\n", __func__); + + init.name = "emc"; + init.ops = &tegra_clk_emc_ops; + init.flags = 0; + init.parent_names = emc_parent_clk_names; + init.num_parents = ARRAY_SIZE(emc_parent_clk_names); + + tegra->hw.init = &init; + + clk = clk_register(NULL, &tegra->hw); + if (IS_ERR(clk)) + return clk; + + tegra->prev_parent = clk_get_parent_by_index( + tegra->hw.clk, emc_get_parent(&tegra->hw)); + tegra->changing_timing = false; + + /* Allow debugging tools to see the EMC clock */ + clk_register_clkdev(clk, "emc", "tegra-clk-debug"); + + clk_prepare_enable(clk); + + return clk; +}; diff --git a/drivers/clk/tegra/clk-tegra124.c b/drivers/clk/tegra/clk-tegra124.c index 11f857cd5f6a..e8cca3eac007 100644 --- a/drivers/clk/tegra/clk-tegra124.c +++ b/drivers/clk/tegra/clk-tegra124.c @@ -152,11 +152,6 @@ static unsigned long tegra124_input_freq[] = { [12] = 260000000, }; -static const char *mux_pllmcp_clkm[] = { - "pll_m", "pll_c", "pll_p", "clk_m", "pll_m_ud", "pll_c2", "pll_c3", -}; -#define mux_pllmcp_clkm_idx NULL - static struct div_nmp pllxc_nmp = { .divm_shift = 0, .divm_width = 8, @@ -791,7 +786,6 @@ static struct tegra_clk tegra124_clks[tegra_clk_max] __initdata = { [tegra_clk_i2c2] = { .dt_id = TEGRA124_CLK_I2C2, .present = true }, [tegra_clk_uartc] = { .dt_id = TEGRA124_CLK_UARTC, .present = true }, [tegra_clk_mipi_cal] = { .dt_id = TEGRA124_CLK_MIPI_CAL, .present = true }, - [tegra_clk_emc] = { .dt_id = TEGRA124_CLK_EMC, .present = true }, [tegra_clk_usb2] = { .dt_id = TEGRA124_CLK_USB2, .present = true }, [tegra_clk_usb3] = { .dt_id = TEGRA124_CLK_USB3, .present = true }, [tegra_clk_vde_8] = { .dt_id = TEGRA124_CLK_VDE, .present = true }, @@ -1127,13 +1121,7 @@ static __init void tegra124_periph_clk_init(void __iomem *clk_base, periph_clk_enb_refcnt); clks[TEGRA124_CLK_DSIB] = clk; - /* emc mux */ - clk = clk_register_mux(NULL, "emc_mux", mux_pllmcp_clkm, - ARRAY_SIZE(mux_pllmcp_clkm), 0, - clk_base + CLK_SOURCE_EMC, - 29, 3, 0, &emc_lock); - - clk = tegra_clk_register_mc("mc", "emc_mux", clk_base + CLK_SOURCE_EMC, + clk = tegra_clk_register_mc("mc", "emc", clk_base + CLK_SOURCE_EMC, &emc_lock); clks[TEGRA124_CLK_MC] = clk; @@ -1389,7 +1377,6 @@ static struct tegra_clk_init_table common_init_table[] __initdata = { {TEGRA124_CLK_XUSB_HOST_SRC, TEGRA124_CLK_PLL_RE_OUT, 112000000, 0}, {TEGRA124_CLK_SATA, TEGRA124_CLK_PLL_P, 104000000, 0}, {TEGRA124_CLK_SATA_OOB, TEGRA124_CLK_PLL_P, 204000000, 0}, - {TEGRA124_CLK_EMC, TEGRA124_CLK_CLK_MAX, 0, 1}, {TEGRA124_CLK_MSELECT, TEGRA124_CLK_CLK_MAX, 0, 1}, {TEGRA124_CLK_CSITE, TEGRA124_CLK_CLK_MAX, 0, 1}, {TEGRA124_CLK_TSENSOR, TEGRA124_CLK_CLK_M, 400000, 0}, @@ -1513,6 +1500,10 @@ static void __init tegra124_132_clock_init_post(struct device_node *np) tegra_super_clk_gen4_init(clk_base, pmc_base, tegra124_clks, &pll_x_params); tegra_add_of_provider(np); + + clks[TEGRA124_CLK_EMC] = tegra_clk_register_emc(clk_base, np, + &emc_lock); + tegra_register_devclks(devclks, ARRAY_SIZE(devclks)); tegra_cpu_car_ops = &tegra124_cpu_car_ops; diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c index 4b26509fc218..0af3e834dd24 100644 --- a/drivers/clk/tegra/clk-tegra30.c +++ b/drivers/clk/tegra/clk-tegra30.c @@ -679,7 +679,7 @@ static struct tegra_devclk devclks[] __initdata = { { .dev_id = "tegra30-dam.1", .dt_id = TEGRA30_CLK_DAM1 }, { .dev_id = "tegra30-dam.2", .dt_id = TEGRA30_CLK_DAM2 }, { .con_id = "hda", .dev_id = "tegra30-hda", .dt_id = TEGRA30_CLK_HDA }, - { .con_id = "hda2codec", .dev_id = "tegra30-hda", .dt_id = TEGRA30_CLK_HDA2CODEC_2X }, + { .con_id = "hda2codec_2x", .dev_id = "tegra30-hda", .dt_id = TEGRA30_CLK_HDA2CODEC_2X }, { .dev_id = "spi_tegra.0", .dt_id = TEGRA30_CLK_SBC1 }, { .dev_id = "spi_tegra.1", .dt_id = TEGRA30_CLK_SBC2 }, { .dev_id = "spi_tegra.2", .dt_id = TEGRA30_CLK_SBC3 }, diff --git a/drivers/clk/tegra/clk.h b/drivers/clk/tegra/clk.h index d6ac00647faf..75ddc8ff8bd4 100644 --- a/drivers/clk/tegra/clk.h +++ b/drivers/clk/tegra/clk.h @@ -623,6 +623,18 @@ void tegra_super_clk_gen4_init(void __iomem *clk_base, void __iomem *pmc_base, struct tegra_clk *tegra_clks, struct tegra_clk_pll_params *pll_params); +#ifdef CONFIG_TEGRA_CLK_EMC +struct clk *tegra_clk_register_emc(void __iomem *base, struct device_node *np, + spinlock_t *lock); +#else +static inline struct clk *tegra_clk_register_emc(void __iomem *base, + struct device_node *np, + spinlock_t *lock) +{ + return NULL; +} +#endif + void tegra114_clock_tune_cpu_trimmers_high(void); void tegra114_clock_tune_cpu_trimmers_low(void); void tegra114_clock_tune_cpu_trimmers_init(void); diff --git a/drivers/clk/ti/clk-7xx.c b/drivers/clk/ti/clk-7xx.c index 5d2217ae4478..63b8323df918 100644 --- a/drivers/clk/ti/clk-7xx.c +++ b/drivers/clk/ti/clk-7xx.c @@ -305,13 +305,14 @@ static struct ti_dt_clk dra7xx_clks[] = { DT_CLK("4882c000.timer", "timer_sys_ck", "timer_sys_clk_div"), DT_CLK("4882e000.timer", "timer_sys_ck", "timer_sys_clk_div"), DT_CLK(NULL, "sys_clkin", "sys_clkin1"), + DT_CLK(NULL, "dss_deshdcp_clk", "dss_deshdcp_clk"), { .node_name = NULL }, }; int __init dra7xx_dt_clk_init(void) { int rc; - struct clk *abe_dpll_mux, *sys_clkin2, *dpll_ck; + struct clk *abe_dpll_mux, *sys_clkin2, *dpll_ck, *hdcp_ck; ti_dt_clocks_register(dra7xx_clks); @@ -347,5 +348,10 @@ int __init dra7xx_dt_clk_init(void) if (rc) pr_err("%s: failed to set USB_DPLL M2 OUT\n", __func__); + hdcp_ck = clk_get_sys(NULL, "dss_deshdcp_clk"); + rc = clk_prepare_enable(hdcp_ck); + if (rc) + pr_err("%s: failed to set dss_deshdcp_clk\n", __func__); + return rc; } diff --git a/drivers/clk/ti/clk-dra7-atl.c b/drivers/clk/ti/clk-dra7-atl.c index d86bc46b93bd..19e543a32e2b 100644 --- a/drivers/clk/ti/clk-dra7-atl.c +++ b/drivers/clk/ti/clk-dra7-atl.c @@ -155,7 +155,7 @@ static int atl_clk_set_rate(struct clk_hw *hw, unsigned long rate, return 0; } -const struct clk_ops atl_clk_ops = { +static const struct clk_ops atl_clk_ops = { .enable = atl_clk_enable, .disable = atl_clk_disable, .is_enabled = atl_clk_is_enabled, @@ -167,7 +167,7 @@ const struct clk_ops atl_clk_ops = { static void __init of_dra7_atl_clock_setup(struct device_node *node) { struct dra7_atl_desc *clk_hw = NULL; - struct clk_init_data init = { 0 }; + struct clk_init_data init = { NULL }; const char **parent_names = NULL; struct clk *clk; @@ -252,6 +252,11 @@ static int of_dra7_atl_clk_probe(struct platform_device *pdev) } clk = of_clk_get_from_provider(&clkspec); + if (IS_ERR(clk)) { + pr_err("%s: failed to get atl clock %d from provider\n", + __func__, i); + return PTR_ERR(clk); + } cdesc = to_atl_desc(__clk_get_hw(clk)); cdesc->cinfo = cinfo; diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c index 0ebe5c51062b..64bb5e8a3b8c 100644 --- a/drivers/clk/ti/clk.c +++ b/drivers/clk/ti/clk.c @@ -122,14 +122,14 @@ void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index) if (i == CLK_MAX_MEMMAPS) { pr_err("clk-provider not found for %s!\n", node->name); - return ERR_PTR(-ENOENT); + return IOMEM_ERR_PTR(-ENOENT); } reg->index = i; if (of_property_read_u32_index(node, "reg", index, &val)) { pr_err("%s must have reg[%d]!\n", node->name, index); - return ERR_PTR(-EINVAL); + return IOMEM_ERR_PTR(-EINVAL); } reg->offset = val; diff --git a/drivers/clk/ti/clockdomain.c b/drivers/clk/ti/clockdomain.c index 35fe1085480c..b82ef07f3403 100644 --- a/drivers/clk/ti/clockdomain.c +++ b/drivers/clk/ti/clockdomain.c @@ -32,7 +32,7 @@ static void __init of_ti_clockdomain_setup(struct device_node *node) int i; int num_clks; - num_clks = of_count_phandle_with_args(node, "clocks", "#clock-cells"); + num_clks = of_clk_get_parent_count(node); for (i = 0; i < num_clks; i++) { clk = of_clk_get(node, i); diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c index 11478a501c30..2aacf7a3bcae 100644 --- a/drivers/clk/ti/dpll.c +++ b/drivers/clk/ti/dpll.c @@ -177,7 +177,7 @@ cleanup: } #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS) -void __iomem *_get_reg(u8 module, u16 offset) +static void __iomem *_get_reg(u8 module, u16 offset) { u32 reg; struct clk_omap_reg *reg_setup; diff --git a/drivers/clk/ti/fapll.c b/drivers/clk/ti/fapll.c index ffcd8e09e85b..730aa62454a2 100644 --- a/drivers/clk/ti/fapll.c +++ b/drivers/clk/ti/fapll.c @@ -621,13 +621,13 @@ static void __init ti_fapll_setup(struct device_node *node) /* Check for hardwired audio_pll_clk1 */ if (is_audio_pll_clk1(freq)) { - freq = 0; - div = 0; + freq = NULL; + div = NULL; } else { /* Does the synthesizer have a FREQ register? */ v = readl_relaxed(freq); if (!v) - freq = 0; + freq = NULL; } synth_clk = ti_fapll_synth_setup(fd, freq, div, output_instance, output_name, node->name, diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c index 80069c370a47..4626b97b7d83 100644 --- a/drivers/clk/ux500/u8500_clk.c +++ b/drivers/clk/ux500/u8500_clk.c @@ -116,11 +116,12 @@ void u8500_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, clk_register_clkdev(clk, NULL, "hdmi"); clk_register_clkdev(clk, "hdmi", "mcde"); - clk = clk_reg_prcmu_gate("apeatclk", NULL, PRCMU_APEATCLK, CLK_IS_ROOT); + clk = clk_reg_prcmu_scalable("apeatclk", NULL, PRCMU_APEATCLK, 0, + CLK_IS_ROOT|CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "apeat"); - clk = clk_reg_prcmu_gate("apetraceclk", NULL, PRCMU_APETRACECLK, - CLK_IS_ROOT); + clk = clk_reg_prcmu_scalable("apetraceclk", NULL, PRCMU_APETRACECLK, 0, + CLK_IS_ROOT|CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "apetrace"); clk = clk_reg_prcmu_gate("mcdeclk", NULL, PRCMU_MCDECLK, CLK_IS_ROOT); diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c index 7b55ef89baa5..e319ef912dc6 100644 --- a/drivers/clk/ux500/u8500_of_clk.c +++ b/drivers/clk/ux500/u8500_of_clk.c @@ -166,8 +166,8 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, clk = clk_reg_prcmu_gate("apeatclk", NULL, PRCMU_APEATCLK, CLK_IS_ROOT); prcmu_clk[PRCMU_APEATCLK] = clk; - clk = clk_reg_prcmu_gate("apetraceclk", NULL, PRCMU_APETRACECLK, - CLK_IS_ROOT); + clk = clk_reg_prcmu_scalable("apetraceclk", NULL, PRCMU_APETRACECLK, 0, + CLK_IS_ROOT|CLK_SET_RATE_GATE); prcmu_clk[PRCMU_APETRACECLK] = clk; clk = clk_reg_prcmu_gate("mcdeclk", NULL, PRCMU_MCDECLK, CLK_IS_ROOT); diff --git a/drivers/clk/versatile/clk-sp810.c b/drivers/clk/versatile/clk-sp810.c index c6e86a9a2aa3..a96dd8e53fdb 100644 --- a/drivers/clk/versatile/clk-sp810.c +++ b/drivers/clk/versatile/clk-sp810.c @@ -135,7 +135,7 @@ static struct clk *clk_sp810_timerclken_of_get(struct of_phandle_args *clkspec, return sp810->timerclken[clkspec->args[0]].clk; } -void __init clk_sp810_of_setup(struct device_node *node) +static void __init clk_sp810_of_setup(struct device_node *node) { struct clk_sp810 *sp810 = kzalloc(sizeof(*sp810), GFP_KERNEL); const char *parent_names[2]; @@ -156,7 +156,7 @@ void __init clk_sp810_of_setup(struct device_node *node) "timclk"); parent_names[1] = of_clk_get_parent_name(node, sp810->timclk_index); - if (parent_names[0] <= 0 || parent_names[1] <= 0) { + if (!parent_names[0] || !parent_names[1]) { pr_warn("Failed to obtain parent clocks for SP810!\n"); return; } diff --git a/drivers/clk/zte/Makefile b/drivers/clk/zte/Makefile new file mode 100644 index 000000000000..95b707c18108 --- /dev/null +++ b/drivers/clk/zte/Makefile @@ -0,0 +1,2 @@ +obj-y := clk-pll.o +obj-$(CONFIG_SOC_ZX296702) += clk-zx296702.o diff --git a/drivers/clk/zte/clk-pll.c b/drivers/clk/zte/clk-pll.c new file mode 100644 index 000000000000..c3b221ae6cd7 --- /dev/null +++ b/drivers/clk/zte/clk-pll.c @@ -0,0 +1,172 @@ +/* + * Copyright 2014 Linaro Ltd. + * Copyright (C) 2014 ZTE Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/clk-provider.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/slab.h> +#include <linux/spinlock.h> + +#include "clk.h" + +#define to_clk_zx_pll(_hw) container_of(_hw, struct clk_zx_pll, hw) + +#define CFG0_CFG1_OFFSET 4 +#define LOCK_FLAG BIT(30) +#define POWER_DOWN BIT(31) + +static int rate_to_idx(struct clk_zx_pll *zx_pll, unsigned long rate) +{ + const struct zx_pll_config *config = zx_pll->lookup_table; + int i; + + for (i = 0; i < zx_pll->count; i++) { + if (config[i].rate > rate) + return i > 0 ? i - 1 : 0; + + if (config[i].rate == rate) + return i; + } + + return i - 1; +} + +static int hw_to_idx(struct clk_zx_pll *zx_pll) +{ + const struct zx_pll_config *config = zx_pll->lookup_table; + u32 hw_cfg0, hw_cfg1; + int i; + + hw_cfg0 = readl_relaxed(zx_pll->reg_base); + hw_cfg1 = readl_relaxed(zx_pll->reg_base + CFG0_CFG1_OFFSET); + + /* For matching the value in lookup table */ + hw_cfg0 &= ~LOCK_FLAG; + hw_cfg0 |= POWER_DOWN; + + for (i = 0; i < zx_pll->count; i++) { + if (hw_cfg0 == config[i].cfg0 && hw_cfg1 == config[i].cfg1) + return i; + } + + return -EINVAL; +} + +static unsigned long zx_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw); + int idx; + + idx = hw_to_idx(zx_pll); + if (unlikely(idx == -EINVAL)) + return 0; + + return zx_pll->lookup_table[idx].rate; +} + +static long zx_pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw); + int idx; + + idx = rate_to_idx(zx_pll, rate); + + return zx_pll->lookup_table[idx].rate; +} + +static int zx_pll_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + /* Assume current cpu is not running on current PLL */ + struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw); + const struct zx_pll_config *config; + int idx; + + idx = rate_to_idx(zx_pll, rate); + config = &zx_pll->lookup_table[idx]; + + writel_relaxed(config->cfg0, zx_pll->reg_base); + writel_relaxed(config->cfg1, zx_pll->reg_base + CFG0_CFG1_OFFSET); + + return 0; +} + +static int zx_pll_enable(struct clk_hw *hw) +{ + struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw); + u32 reg; + + reg = readl_relaxed(zx_pll->reg_base); + writel_relaxed(reg & ~POWER_DOWN, zx_pll->reg_base); + + return readl_relaxed_poll_timeout(zx_pll->reg_base, reg, + reg & LOCK_FLAG, 0, 100); +} + +static void zx_pll_disable(struct clk_hw *hw) +{ + struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw); + u32 reg; + + reg = readl_relaxed(zx_pll->reg_base); + writel_relaxed(reg | POWER_DOWN, zx_pll->reg_base); +} + +static int zx_pll_is_enabled(struct clk_hw *hw) +{ + struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw); + u32 reg; + + reg = readl_relaxed(zx_pll->reg_base); + + return !(reg & POWER_DOWN); +} + +static const struct clk_ops zx_pll_ops = { + .recalc_rate = zx_pll_recalc_rate, + .round_rate = zx_pll_round_rate, + .set_rate = zx_pll_set_rate, + .enable = zx_pll_enable, + .disable = zx_pll_disable, + .is_enabled = zx_pll_is_enabled, +}; + +struct clk *clk_register_zx_pll(const char *name, const char *parent_name, + unsigned long flags, void __iomem *reg_base, + const struct zx_pll_config *lookup_table, int count, spinlock_t *lock) +{ + struct clk_zx_pll *zx_pll; + struct clk *clk; + struct clk_init_data init; + + zx_pll = kzalloc(sizeof(*zx_pll), GFP_KERNEL); + if (!zx_pll) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = &zx_pll_ops; + init.flags = flags; + init.parent_names = parent_name ? &parent_name : NULL; + init.num_parents = parent_name ? 1 : 0; + + zx_pll->reg_base = reg_base; + zx_pll->lookup_table = lookup_table; + zx_pll->count = count; + zx_pll->lock = lock; + zx_pll->hw.init = &init; + + clk = clk_register(NULL, &zx_pll->hw); + if (IS_ERR(clk)) + kfree(zx_pll); + + return clk; +} diff --git a/drivers/clk/zte/clk-zx296702.c b/drivers/clk/zte/clk-zx296702.c new file mode 100644 index 000000000000..929d033594af --- /dev/null +++ b/drivers/clk/zte/clk-zx296702.c @@ -0,0 +1,657 @@ +/* + * Copyright 2014 Linaro Ltd. + * Copyright (C) 2014 ZTE Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/clk-provider.h> +#include <linux/of_address.h> +#include <dt-bindings/clock/zx296702-clock.h> +#include "clk.h" + +static DEFINE_SPINLOCK(reg_lock); + +static void __iomem *topcrm_base; +static void __iomem *lsp0crpm_base; +static void __iomem *lsp1crpm_base; + +static struct clk *topclk[ZX296702_TOPCLK_END]; +static struct clk *lsp0clk[ZX296702_LSP0CLK_END]; +static struct clk *lsp1clk[ZX296702_LSP1CLK_END]; + +static struct clk_onecell_data topclk_data; +static struct clk_onecell_data lsp0clk_data; +static struct clk_onecell_data lsp1clk_data; + +#define CLK_MUX (topcrm_base + 0x04) +#define CLK_DIV (topcrm_base + 0x08) +#define CLK_EN0 (topcrm_base + 0x0c) +#define CLK_EN1 (topcrm_base + 0x10) +#define VOU_LOCAL_CLKEN (topcrm_base + 0x68) +#define VOU_LOCAL_CLKSEL (topcrm_base + 0x70) +#define VOU_LOCAL_DIV2_SET (topcrm_base + 0x74) +#define CLK_MUX1 (topcrm_base + 0x8c) + +#define CLK_SDMMC1 (lsp0crpm_base + 0x0c) + +#define CLK_UART0 (lsp1crpm_base + 0x20) +#define CLK_UART1 (lsp1crpm_base + 0x24) +#define CLK_SDMMC0 (lsp1crpm_base + 0x2c) + +static const struct zx_pll_config pll_a9_config[] = { + { .rate = 700000000, .cfg0 = 0x800405d1, .cfg1 = 0x04555555 }, + { .rate = 800000000, .cfg0 = 0x80040691, .cfg1 = 0x04aaaaaa }, + { .rate = 900000000, .cfg0 = 0x80040791, .cfg1 = 0x04000000 }, + { .rate = 1000000000, .cfg0 = 0x80040851, .cfg1 = 0x04555555 }, + { .rate = 1100000000, .cfg0 = 0x80040911, .cfg1 = 0x04aaaaaa }, + { .rate = 1200000000, .cfg0 = 0x80040a11, .cfg1 = 0x04000000 }, +}; + +static const struct clk_div_table main_hlk_div[] = { + { .val = 1, .div = 2, }, + { .val = 3, .div = 4, }, + { /* sentinel */ } +}; + +static const struct clk_div_table a9_as1_aclk_divider[] = { + { .val = 0, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 3, .div = 4, }, + { /* sentinel */ } +}; + +static const struct clk_div_table sec_wclk_divider[] = { + { .val = 0, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 3, .div = 4, }, + { .val = 5, .div = 6, }, + { .val = 7, .div = 8, }, + { /* sentinel */ } +}; + +static const char * matrix_aclk_sel[] = { + "pll_mm0_198M", + "osc", + "clk_148M5", + "pll_lsp_104M", +}; + +static const char * a9_wclk_sel[] = { + "pll_a9", + "osc", + "clk_500", + "clk_250", +}; + +static const char * a9_as1_aclk_sel[] = { + "clk_250", + "osc", + "pll_mm0_396M", + "pll_mac_333M", +}; + +static const char * a9_trace_clkin_sel[] = { + "clk_74M25", + "pll_mm1_108M", + "clk_125", + "clk_148M5", +}; + +static const char * decppu_aclk_sel[] = { + "clk_250", + "pll_mm0_198M", + "pll_lsp_104M", + "pll_audio_294M912", +}; + +static const char * vou_main_wclk_sel[] = { + "clk_148M5", + "clk_74M25", + "clk_27", + "pll_mm1_54M", +}; + +static const char * vou_scaler_wclk_sel[] = { + "clk_250", + "pll_mac_333M", + "pll_audio_294M912", + "pll_mm0_198M", +}; + +static const char * r2d_wclk_sel[] = { + "pll_audio_294M912", + "pll_mac_333M", + "pll_a9_350M", + "pll_mm0_396M", +}; + +static const char * ddr_wclk_sel[] = { + "pll_mac_333M", + "pll_ddr_266M", + "pll_audio_294M912", + "pll_mm0_198M", +}; + +static const char * nand_wclk_sel[] = { + "pll_lsp_104M", + "osc", +}; + +static const char * lsp_26_wclk_sel[] = { + "pll_lsp_26M", + "osc", +}; + +static const char * vl0_sel[] = { + "vou_main_channel_div", + "vou_aux_channel_div", +}; + +static const char * hdmi_sel[] = { + "vou_main_channel_wclk", + "vou_aux_channel_wclk", +}; + +static const char * sdmmc0_wclk_sel[] = { + "lsp1_104M_wclk", + "lsp1_26M_wclk", +}; + +static const char * sdmmc1_wclk_sel[] = { + "lsp0_104M_wclk", + "lsp0_26M_wclk", +}; + +static const char * uart_wclk_sel[] = { + "lsp1_104M_wclk", + "lsp1_26M_wclk", +}; + +static inline struct clk *zx_divtbl(const char *name, const char *parent, + void __iomem *reg, u8 shift, u8 width, + const struct clk_div_table *table) +{ + return clk_register_divider_table(NULL, name, parent, 0, reg, shift, + width, 0, table, ®_lock); +} + +static inline struct clk *zx_div(const char *name, const char *parent, + void __iomem *reg, u8 shift, u8 width) +{ + return clk_register_divider(NULL, name, parent, 0, + reg, shift, width, 0, ®_lock); +} + +static inline struct clk *zx_mux(const char *name, const char **parents, + int num_parents, void __iomem *reg, u8 shift, u8 width) +{ + return clk_register_mux(NULL, name, parents, num_parents, + 0, reg, shift, width, 0, ®_lock); +} + +static inline struct clk *zx_gate(const char *name, const char *parent, + void __iomem *reg, u8 shift) +{ + return clk_register_gate(NULL, name, parent, CLK_IGNORE_UNUSED, + reg, shift, 0, ®_lock); +} + +static void __init zx296702_top_clocks_init(struct device_node *np) +{ + struct clk **clk = topclk; + int i; + + topcrm_base = of_iomap(np, 0); + WARN_ON(!topcrm_base); + + clk[ZX296702_OSC] = + clk_register_fixed_rate(NULL, "osc", NULL, CLK_IS_ROOT, + 30000000); + clk[ZX296702_PLL_A9] = + clk_register_zx_pll("pll_a9", "osc", 0, topcrm_base + + 0x01c, pll_a9_config, + ARRAY_SIZE(pll_a9_config), ®_lock); + + /* TODO: pll_a9_350M look like changeble follow a9 pll */ + clk[ZX296702_PLL_A9_350M] = + clk_register_fixed_rate(NULL, "pll_a9_350M", "osc", 0, + 350000000); + clk[ZX296702_PLL_MAC_1000M] = + clk_register_fixed_rate(NULL, "pll_mac_1000M", "osc", 0, + 1000000000); + clk[ZX296702_PLL_MAC_333M] = + clk_register_fixed_rate(NULL, "pll_mac_333M", "osc", 0, + 333000000); + clk[ZX296702_PLL_MM0_1188M] = + clk_register_fixed_rate(NULL, "pll_mm0_1188M", "osc", 0, + 1188000000); + clk[ZX296702_PLL_MM0_396M] = + clk_register_fixed_rate(NULL, "pll_mm0_396M", "osc", 0, + 396000000); + clk[ZX296702_PLL_MM0_198M] = + clk_register_fixed_rate(NULL, "pll_mm0_198M", "osc", 0, + 198000000); + clk[ZX296702_PLL_MM1_108M] = + clk_register_fixed_rate(NULL, "pll_mm1_108M", "osc", 0, + 108000000); + clk[ZX296702_PLL_MM1_72M] = + clk_register_fixed_rate(NULL, "pll_mm1_72M", "osc", 0, + 72000000); + clk[ZX296702_PLL_MM1_54M] = + clk_register_fixed_rate(NULL, "pll_mm1_54M", "osc", 0, + 54000000); + clk[ZX296702_PLL_LSP_104M] = + clk_register_fixed_rate(NULL, "pll_lsp_104M", "osc", 0, + 104000000); + clk[ZX296702_PLL_LSP_26M] = + clk_register_fixed_rate(NULL, "pll_lsp_26M", "osc", 0, + 26000000); + clk[ZX296702_PLL_DDR_266M] = + clk_register_fixed_rate(NULL, "pll_ddr_266M", "osc", 0, + 266000000); + clk[ZX296702_PLL_AUDIO_294M912] = + clk_register_fixed_rate(NULL, "pll_audio_294M912", "osc", 0, + 294912000); + + /* bus clock */ + clk[ZX296702_MATRIX_ACLK] = + zx_mux("matrix_aclk", matrix_aclk_sel, + ARRAY_SIZE(matrix_aclk_sel), CLK_MUX, 2, 2); + clk[ZX296702_MAIN_HCLK] = + zx_divtbl("main_hclk", "matrix_aclk", CLK_DIV, 0, 2, + main_hlk_div); + clk[ZX296702_MAIN_PCLK] = + zx_divtbl("main_pclk", "matrix_aclk", CLK_DIV, 2, 2, + main_hlk_div); + + /* cpu clock */ + clk[ZX296702_CLK_500] = + clk_register_fixed_factor(NULL, "clk_500", "pll_mac_1000M", 0, + 1, 2); + clk[ZX296702_CLK_250] = + clk_register_fixed_factor(NULL, "clk_250", "pll_mac_1000M", 0, + 1, 4); + clk[ZX296702_CLK_125] = + clk_register_fixed_factor(NULL, "clk_125", "clk_250", 0, 1, 2); + clk[ZX296702_CLK_148M5] = + clk_register_fixed_factor(NULL, "clk_148M5", "pll_mm0_1188M", 0, + 1, 8); + clk[ZX296702_CLK_74M25] = + clk_register_fixed_factor(NULL, "clk_74M25", "pll_mm0_1188M", 0, + 1, 16); + clk[ZX296702_A9_WCLK] = + zx_mux("a9_wclk", a9_wclk_sel, ARRAY_SIZE(a9_wclk_sel), CLK_MUX, + 0, 2); + clk[ZX296702_A9_AS1_ACLK_MUX] = + zx_mux("a9_as1_aclk_mux", a9_as1_aclk_sel, + ARRAY_SIZE(a9_as1_aclk_sel), CLK_MUX, 4, 2); + clk[ZX296702_A9_TRACE_CLKIN_MUX] = + zx_mux("a9_trace_clkin_mux", a9_trace_clkin_sel, + ARRAY_SIZE(a9_trace_clkin_sel), CLK_MUX1, 0, 2); + clk[ZX296702_A9_AS1_ACLK_DIV] = + zx_divtbl("a9_as1_aclk_div", "a9_as1_aclk_mux", CLK_DIV, 4, 2, + a9_as1_aclk_divider); + + /* multi-media clock */ + clk[ZX296702_CLK_2] = + clk_register_fixed_factor(NULL, "clk_2", "pll_mm1_72M", 0, + 1, 36); + clk[ZX296702_CLK_27] = + clk_register_fixed_factor(NULL, "clk_27", "pll_mm1_54M", 0, + 1, 2); + clk[ZX296702_DECPPU_ACLK_MUX] = + zx_mux("decppu_aclk_mux", decppu_aclk_sel, + ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 6, 2); + clk[ZX296702_PPU_ACLK_MUX] = + zx_mux("ppu_aclk_mux", decppu_aclk_sel, + ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 8, 2); + clk[ZX296702_MALI400_ACLK_MUX] = + zx_mux("mali400_aclk_mux", decppu_aclk_sel, + ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 12, 2); + clk[ZX296702_VOU_ACLK_MUX] = + zx_mux("vou_aclk_mux", decppu_aclk_sel, + ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 10, 2); + clk[ZX296702_VOU_MAIN_WCLK_MUX] = + zx_mux("vou_main_wclk_mux", vou_main_wclk_sel, + ARRAY_SIZE(vou_main_wclk_sel), CLK_MUX, 14, 2); + clk[ZX296702_VOU_AUX_WCLK_MUX] = + zx_mux("vou_aux_wclk_mux", vou_main_wclk_sel, + ARRAY_SIZE(vou_main_wclk_sel), CLK_MUX, 16, 2); + clk[ZX296702_VOU_SCALER_WCLK_MUX] = + zx_mux("vou_scaler_wclk_mux", vou_scaler_wclk_sel, + ARRAY_SIZE(vou_scaler_wclk_sel), CLK_MUX, + 18, 2); + clk[ZX296702_R2D_ACLK_MUX] = + zx_mux("r2d_aclk_mux", decppu_aclk_sel, + ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 20, 2); + clk[ZX296702_R2D_WCLK_MUX] = + zx_mux("r2d_wclk_mux", r2d_wclk_sel, + ARRAY_SIZE(r2d_wclk_sel), CLK_MUX, 22, 2); + + /* other clock */ + clk[ZX296702_CLK_50] = + clk_register_fixed_factor(NULL, "clk_50", "pll_mac_1000M", + 0, 1, 20); + clk[ZX296702_CLK_25] = + clk_register_fixed_factor(NULL, "clk_25", "pll_mac_1000M", + 0, 1, 40); + clk[ZX296702_CLK_12] = + clk_register_fixed_factor(NULL, "clk_12", "pll_mm1_72M", + 0, 1, 6); + clk[ZX296702_CLK_16M384] = + clk_register_fixed_factor(NULL, "clk_16M384", + "pll_audio_294M912", 0, 1, 18); + clk[ZX296702_CLK_32K768] = + clk_register_fixed_factor(NULL, "clk_32K768", "clk_16M384", + 0, 1, 500); + clk[ZX296702_SEC_WCLK_DIV] = + zx_divtbl("sec_wclk_div", "pll_lsp_104M", CLK_DIV, 6, 3, + sec_wclk_divider); + clk[ZX296702_DDR_WCLK_MUX] = + zx_mux("ddr_wclk_mux", ddr_wclk_sel, + ARRAY_SIZE(ddr_wclk_sel), CLK_MUX, 24, 2); + clk[ZX296702_NAND_WCLK_MUX] = + zx_mux("nand_wclk_mux", nand_wclk_sel, + ARRAY_SIZE(nand_wclk_sel), CLK_MUX, 24, 2); + clk[ZX296702_LSP_26_WCLK_MUX] = + zx_mux("lsp_26_wclk_mux", lsp_26_wclk_sel, + ARRAY_SIZE(lsp_26_wclk_sel), CLK_MUX, 27, 1); + + /* gates */ + clk[ZX296702_A9_AS0_ACLK] = + zx_gate("a9_as0_aclk", "matrix_aclk", CLK_EN0, 0); + clk[ZX296702_A9_AS1_ACLK] = + zx_gate("a9_as1_aclk", "a9_as1_aclk_div", CLK_EN0, 1); + clk[ZX296702_A9_TRACE_CLKIN] = + zx_gate("a9_trace_clkin", "a9_trace_clkin_mux", CLK_EN0, 2); + clk[ZX296702_DECPPU_AXI_M_ACLK] = + zx_gate("decppu_axi_m_aclk", "decppu_aclk_mux", CLK_EN0, 3); + clk[ZX296702_DECPPU_AHB_S_HCLK] = + zx_gate("decppu_ahb_s_hclk", "main_hclk", CLK_EN0, 4); + clk[ZX296702_PPU_AXI_M_ACLK] = + zx_gate("ppu_axi_m_aclk", "ppu_aclk_mux", CLK_EN0, 5); + clk[ZX296702_PPU_AHB_S_HCLK] = + zx_gate("ppu_ahb_s_hclk", "main_hclk", CLK_EN0, 6); + clk[ZX296702_VOU_AXI_M_ACLK] = + zx_gate("vou_axi_m_aclk", "vou_aclk_mux", CLK_EN0, 7); + clk[ZX296702_VOU_APB_PCLK] = + zx_gate("vou_apb_pclk", "main_pclk", CLK_EN0, 8); + clk[ZX296702_VOU_MAIN_CHANNEL_WCLK] = + zx_gate("vou_main_channel_wclk", "vou_main_wclk_mux", + CLK_EN0, 9); + clk[ZX296702_VOU_AUX_CHANNEL_WCLK] = + zx_gate("vou_aux_channel_wclk", "vou_aux_wclk_mux", + CLK_EN0, 10); + clk[ZX296702_VOU_HDMI_OSCLK_CEC] = + zx_gate("vou_hdmi_osclk_cec", "clk_2", CLK_EN0, 11); + clk[ZX296702_VOU_SCALER_WCLK] = + zx_gate("vou_scaler_wclk", "vou_scaler_wclk_mux", CLK_EN0, 12); + clk[ZX296702_MALI400_AXI_M_ACLK] = + zx_gate("mali400_axi_m_aclk", "mali400_aclk_mux", CLK_EN0, 13); + clk[ZX296702_MALI400_APB_PCLK] = + zx_gate("mali400_apb_pclk", "main_pclk", CLK_EN0, 14); + clk[ZX296702_R2D_WCLK] = + zx_gate("r2d_wclk", "r2d_wclk_mux", CLK_EN0, 15); + clk[ZX296702_R2D_AXI_M_ACLK] = + zx_gate("r2d_axi_m_aclk", "r2d_aclk_mux", CLK_EN0, 16); + clk[ZX296702_R2D_AHB_HCLK] = + zx_gate("r2d_ahb_hclk", "main_hclk", CLK_EN0, 17); + clk[ZX296702_DDR3_AXI_S0_ACLK] = + zx_gate("ddr3_axi_s0_aclk", "matrix_aclk", CLK_EN0, 18); + clk[ZX296702_DDR3_APB_PCLK] = + zx_gate("ddr3_apb_pclk", "main_pclk", CLK_EN0, 19); + clk[ZX296702_DDR3_WCLK] = + zx_gate("ddr3_wclk", "ddr_wclk_mux", CLK_EN0, 20); + clk[ZX296702_USB20_0_AHB_HCLK] = + zx_gate("usb20_0_ahb_hclk", "main_hclk", CLK_EN0, 21); + clk[ZX296702_USB20_0_EXTREFCLK] = + zx_gate("usb20_0_extrefclk", "clk_12", CLK_EN0, 22); + clk[ZX296702_USB20_1_AHB_HCLK] = + zx_gate("usb20_1_ahb_hclk", "main_hclk", CLK_EN0, 23); + clk[ZX296702_USB20_1_EXTREFCLK] = + zx_gate("usb20_1_extrefclk", "clk_12", CLK_EN0, 24); + clk[ZX296702_USB20_2_AHB_HCLK] = + zx_gate("usb20_2_ahb_hclk", "main_hclk", CLK_EN0, 25); + clk[ZX296702_USB20_2_EXTREFCLK] = + zx_gate("usb20_2_extrefclk", "clk_12", CLK_EN0, 26); + clk[ZX296702_GMAC_AXI_M_ACLK] = + zx_gate("gmac_axi_m_aclk", "matrix_aclk", CLK_EN0, 27); + clk[ZX296702_GMAC_APB_PCLK] = + zx_gate("gmac_apb_pclk", "main_pclk", CLK_EN0, 28); + clk[ZX296702_GMAC_125_CLKIN] = + zx_gate("gmac_125_clkin", "clk_125", CLK_EN0, 29); + clk[ZX296702_GMAC_RMII_CLKIN] = + zx_gate("gmac_rmii_clkin", "clk_50", CLK_EN0, 30); + clk[ZX296702_GMAC_25M_CLK] = + zx_gate("gmac_25M_clk", "clk_25", CLK_EN0, 31); + clk[ZX296702_NANDFLASH_AHB_HCLK] = + zx_gate("nandflash_ahb_hclk", "main_hclk", CLK_EN1, 0); + clk[ZX296702_NANDFLASH_WCLK] = + zx_gate("nandflash_wclk", "nand_wclk_mux", CLK_EN1, 1); + clk[ZX296702_LSP0_APB_PCLK] = + zx_gate("lsp0_apb_pclk", "main_pclk", CLK_EN1, 2); + clk[ZX296702_LSP0_AHB_HCLK] = + zx_gate("lsp0_ahb_hclk", "main_hclk", CLK_EN1, 3); + clk[ZX296702_LSP0_26M_WCLK] = + zx_gate("lsp0_26M_wclk", "lsp_26_wclk_mux", CLK_EN1, 4); + clk[ZX296702_LSP0_104M_WCLK] = + zx_gate("lsp0_104M_wclk", "pll_lsp_104M", CLK_EN1, 5); + clk[ZX296702_LSP0_16M384_WCLK] = + zx_gate("lsp0_16M384_wclk", "clk_16M384", CLK_EN1, 6); + clk[ZX296702_LSP1_APB_PCLK] = + zx_gate("lsp1_apb_pclk", "main_pclk", CLK_EN1, 7); + /* FIXME: wclk enable bit is bit8. We hack it as reserved 31 for + * UART does not work after parent clk is disabled/enabled */ + clk[ZX296702_LSP1_26M_WCLK] = + zx_gate("lsp1_26M_wclk", "lsp_26_wclk_mux", CLK_EN1, 31); + clk[ZX296702_LSP1_104M_WCLK] = + zx_gate("lsp1_104M_wclk", "pll_lsp_104M", CLK_EN1, 9); + clk[ZX296702_LSP1_32K_CLK] = + zx_gate("lsp1_32K_clk", "clk_32K768", CLK_EN1, 10); + clk[ZX296702_AON_HCLK] = + zx_gate("aon_hclk", "main_hclk", CLK_EN1, 11); + clk[ZX296702_SYS_CTRL_PCLK] = + zx_gate("sys_ctrl_pclk", "main_pclk", CLK_EN1, 12); + clk[ZX296702_DMA_PCLK] = + zx_gate("dma_pclk", "main_pclk", CLK_EN1, 13); + clk[ZX296702_DMA_ACLK] = + zx_gate("dma_aclk", "matrix_aclk", CLK_EN1, 14); + clk[ZX296702_SEC_HCLK] = + zx_gate("sec_hclk", "main_hclk", CLK_EN1, 15); + clk[ZX296702_AES_WCLK] = + zx_gate("aes_wclk", "sec_wclk_div", CLK_EN1, 16); + clk[ZX296702_DES_WCLK] = + zx_gate("des_wclk", "sec_wclk_div", CLK_EN1, 17); + clk[ZX296702_IRAM_ACLK] = + zx_gate("iram_aclk", "matrix_aclk", CLK_EN1, 18); + clk[ZX296702_IROM_ACLK] = + zx_gate("irom_aclk", "matrix_aclk", CLK_EN1, 19); + clk[ZX296702_BOOT_CTRL_HCLK] = + zx_gate("boot_ctrl_hclk", "main_hclk", CLK_EN1, 20); + clk[ZX296702_EFUSE_CLK_30] = + zx_gate("efuse_clk_30", "osc", CLK_EN1, 21); + + /* TODO: add VOU Local clocks */ + clk[ZX296702_VOU_MAIN_CHANNEL_DIV] = + zx_div("vou_main_channel_div", "vou_main_channel_wclk", + VOU_LOCAL_DIV2_SET, 1, 1); + clk[ZX296702_VOU_AUX_CHANNEL_DIV] = + zx_div("vou_aux_channel_div", "vou_aux_channel_wclk", + VOU_LOCAL_DIV2_SET, 0, 1); + clk[ZX296702_VOU_TV_ENC_HD_DIV] = + zx_div("vou_tv_enc_hd_div", "vou_tv_enc_hd_mux", + VOU_LOCAL_DIV2_SET, 3, 1); + clk[ZX296702_VOU_TV_ENC_SD_DIV] = + zx_div("vou_tv_enc_sd_div", "vou_tv_enc_sd_mux", + VOU_LOCAL_DIV2_SET, 2, 1); + clk[ZX296702_VL0_MUX] = + zx_mux("vl0_mux", vl0_sel, ARRAY_SIZE(vl0_sel), + VOU_LOCAL_CLKSEL, 8, 1); + clk[ZX296702_VL1_MUX] = + zx_mux("vl1_mux", vl0_sel, ARRAY_SIZE(vl0_sel), + VOU_LOCAL_CLKSEL, 9, 1); + clk[ZX296702_VL2_MUX] = + zx_mux("vl2_mux", vl0_sel, ARRAY_SIZE(vl0_sel), + VOU_LOCAL_CLKSEL, 10, 1); + clk[ZX296702_GL0_MUX] = + zx_mux("gl0_mux", vl0_sel, ARRAY_SIZE(vl0_sel), + VOU_LOCAL_CLKSEL, 5, 1); + clk[ZX296702_GL1_MUX] = + zx_mux("gl1_mux", vl0_sel, ARRAY_SIZE(vl0_sel), + VOU_LOCAL_CLKSEL, 6, 1); + clk[ZX296702_GL2_MUX] = + zx_mux("gl2_mux", vl0_sel, ARRAY_SIZE(vl0_sel), + VOU_LOCAL_CLKSEL, 7, 1); + clk[ZX296702_WB_MUX] = + zx_mux("wb_mux", vl0_sel, ARRAY_SIZE(vl0_sel), + VOU_LOCAL_CLKSEL, 11, 1); + clk[ZX296702_HDMI_MUX] = + zx_mux("hdmi_mux", hdmi_sel, ARRAY_SIZE(hdmi_sel), + VOU_LOCAL_CLKSEL, 4, 1); + clk[ZX296702_VOU_TV_ENC_HD_MUX] = + zx_mux("vou_tv_enc_hd_mux", hdmi_sel, ARRAY_SIZE(hdmi_sel), + VOU_LOCAL_CLKSEL, 3, 1); + clk[ZX296702_VOU_TV_ENC_SD_MUX] = + zx_mux("vou_tv_enc_sd_mux", hdmi_sel, ARRAY_SIZE(hdmi_sel), + VOU_LOCAL_CLKSEL, 2, 1); + clk[ZX296702_VL0_CLK] = + zx_gate("vl0_clk", "vl0_mux", VOU_LOCAL_CLKEN, 8); + clk[ZX296702_VL1_CLK] = + zx_gate("vl1_clk", "vl1_mux", VOU_LOCAL_CLKEN, 9); + clk[ZX296702_VL2_CLK] = + zx_gate("vl2_clk", "vl2_mux", VOU_LOCAL_CLKEN, 10); + clk[ZX296702_GL0_CLK] = + zx_gate("gl0_clk", "gl0_mux", VOU_LOCAL_CLKEN, 5); + clk[ZX296702_GL1_CLK] = + zx_gate("gl1_clk", "gl1_mux", VOU_LOCAL_CLKEN, 6); + clk[ZX296702_GL2_CLK] = + zx_gate("gl2_clk", "gl2_mux", VOU_LOCAL_CLKEN, 7); + clk[ZX296702_WB_CLK] = + zx_gate("wb_clk", "wb_mux", VOU_LOCAL_CLKEN, 11); + clk[ZX296702_CL_CLK] = + zx_gate("cl_clk", "vou_main_channel_div", VOU_LOCAL_CLKEN, 12); + clk[ZX296702_MAIN_MIX_CLK] = + zx_gate("main_mix_clk", "vou_main_channel_div", + VOU_LOCAL_CLKEN, 4); + clk[ZX296702_AUX_MIX_CLK] = + zx_gate("aux_mix_clk", "vou_aux_channel_div", + VOU_LOCAL_CLKEN, 3); + clk[ZX296702_HDMI_CLK] = + zx_gate("hdmi_clk", "hdmi_mux", VOU_LOCAL_CLKEN, 2); + clk[ZX296702_VOU_TV_ENC_HD_DAC_CLK] = + zx_gate("vou_tv_enc_hd_dac_clk", "vou_tv_enc_hd_div", + VOU_LOCAL_CLKEN, 1); + clk[ZX296702_VOU_TV_ENC_SD_DAC_CLK] = + zx_gate("vou_tv_enc_sd_dac_clk", "vou_tv_enc_sd_div", + VOU_LOCAL_CLKEN, 0); + + /* CA9 PERIPHCLK = a9_wclk / 2 */ + clk[ZX296702_A9_PERIPHCLK] = + clk_register_fixed_factor(NULL, "a9_periphclk", "a9_wclk", + 0, 1, 2); + + for (i = 0; i < ARRAY_SIZE(topclk); i++) { + if (IS_ERR(clk[i])) { + pr_err("zx296702 clk %d: register failed with %ld\n", + i, PTR_ERR(clk[i])); + return; + } + } + + topclk_data.clks = topclk; + topclk_data.clk_num = ARRAY_SIZE(topclk); + of_clk_add_provider(np, of_clk_src_onecell_get, &topclk_data); +} +CLK_OF_DECLARE(zx296702_top_clk, "zte,zx296702-topcrm-clk", + zx296702_top_clocks_init); + +static void __init zx296702_lsp0_clocks_init(struct device_node *np) +{ + struct clk **clk = lsp0clk; + int i; + + lsp0crpm_base = of_iomap(np, 0); + WARN_ON(!lsp0crpm_base); + + /* SDMMC1 */ + clk[ZX296702_SDMMC1_WCLK_MUX] = + zx_mux("sdmmc1_wclk_mux", sdmmc1_wclk_sel, + ARRAY_SIZE(sdmmc1_wclk_sel), CLK_SDMMC1, 4, 1); + clk[ZX296702_SDMMC1_WCLK_DIV] = + zx_div("sdmmc1_wclk_div", "sdmmc1_wclk_mux", CLK_SDMMC1, 12, 4); + clk[ZX296702_SDMMC1_WCLK] = + zx_gate("sdmmc1_wclk", "sdmmc1_wclk_div", CLK_SDMMC1, 1); + clk[ZX296702_SDMMC1_PCLK] = + zx_gate("sdmmc1_pclk", "lsp1_apb_pclk", CLK_SDMMC1, 0); + + for (i = 0; i < ARRAY_SIZE(lsp0clk); i++) { + if (IS_ERR(clk[i])) { + pr_err("zx296702 clk %d: register failed with %ld\n", + i, PTR_ERR(clk[i])); + return; + } + } + + lsp0clk_data.clks = lsp0clk; + lsp0clk_data.clk_num = ARRAY_SIZE(lsp0clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &lsp0clk_data); +} +CLK_OF_DECLARE(zx296702_lsp0_clk, "zte,zx296702-lsp0crpm-clk", + zx296702_lsp0_clocks_init); + +static void __init zx296702_lsp1_clocks_init(struct device_node *np) +{ + struct clk **clk = lsp1clk; + int i; + + lsp1crpm_base = of_iomap(np, 0); + WARN_ON(!lsp1crpm_base); + + /* UART0 */ + clk[ZX296702_UART0_WCLK_MUX] = + zx_mux("uart0_wclk_mux", uart_wclk_sel, + ARRAY_SIZE(uart_wclk_sel), CLK_UART0, 4, 1); + /* FIXME: uart wclk enable bit is bit1 in. We hack it as reserved 31 for + * UART does not work after parent clk is disabled/enabled */ + clk[ZX296702_UART0_WCLK] = + zx_gate("uart0_wclk", "uart0_wclk_mux", CLK_UART0, 31); + clk[ZX296702_UART0_PCLK] = + zx_gate("uart0_pclk", "lsp1_apb_pclk", CLK_UART0, 0); + + /* UART1 */ + clk[ZX296702_UART1_WCLK_MUX] = + zx_mux("uart1_wclk_mux", uart_wclk_sel, + ARRAY_SIZE(uart_wclk_sel), CLK_UART1, 4, 1); + clk[ZX296702_UART1_WCLK] = + zx_gate("uart1_wclk", "uart1_wclk_mux", CLK_UART1, 1); + clk[ZX296702_UART1_PCLK] = + zx_gate("uart1_pclk", "lsp1_apb_pclk", CLK_UART1, 0); + + /* SDMMC0 */ + clk[ZX296702_SDMMC0_WCLK_MUX] = + zx_mux("sdmmc0_wclk_mux", sdmmc0_wclk_sel, + ARRAY_SIZE(sdmmc0_wclk_sel), CLK_SDMMC0, 4, 1); + clk[ZX296702_SDMMC0_WCLK_DIV] = + zx_div("sdmmc0_wclk_div", "sdmmc0_wclk_mux", CLK_SDMMC0, 12, 4); + clk[ZX296702_SDMMC0_WCLK] = + zx_gate("sdmmc0_wclk", "sdmmc0_wclk_div", CLK_SDMMC0, 1); + clk[ZX296702_SDMMC0_PCLK] = + zx_gate("sdmmc0_pclk", "lsp1_apb_pclk", CLK_SDMMC0, 0); + + for (i = 0; i < ARRAY_SIZE(lsp1clk); i++) { + if (IS_ERR(clk[i])) { + pr_err("zx296702 clk %d: register failed with %ld\n", + i, PTR_ERR(clk[i])); + return; + } + } + + lsp1clk_data.clks = lsp1clk; + lsp1clk_data.clk_num = ARRAY_SIZE(lsp1clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &lsp1clk_data); +} +CLK_OF_DECLARE(zx296702_lsp1_clk, "zte,zx296702-lsp1crpm-clk", + zx296702_lsp1_clocks_init); diff --git a/drivers/clk/zte/clk.h b/drivers/clk/zte/clk.h new file mode 100644 index 000000000000..0914a82d0535 --- /dev/null +++ b/drivers/clk/zte/clk.h @@ -0,0 +1,32 @@ +/* + * Copyright 2015 Linaro Ltd. + * Copyright (C) 2014 ZTE Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ZTE_CLK_H +#define __ZTE_CLK_H +#include <linux/clk-provider.h> +#include <linux/spinlock.h> + +struct zx_pll_config { + unsigned long rate; + u32 cfg0; + u32 cfg1; +}; + +struct clk_zx_pll { + struct clk_hw hw; + void __iomem *reg_base; + const struct zx_pll_config *lookup_table; /* order by rate asc */ + int count; + spinlock_t *lock; +}; + +struct clk *clk_register_zx_pll(const char *name, const char *parent_name, + unsigned long flags, void __iomem *reg_base, + const struct zx_pll_config *lookup_table, int count, spinlock_t *lock); +#endif diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c index 40cb113be6af..de614384bb44 100644 --- a/drivers/clk/zynq/clkc.c +++ b/drivers/clk/zynq/clkc.c @@ -85,22 +85,29 @@ static DEFINE_SPINLOCK(canmioclk_lock); static DEFINE_SPINLOCK(dbgclk_lock); static DEFINE_SPINLOCK(aperclk_lock); -static const char *armpll_parents[] __initdata = {"armpll_int", "ps_clk"}; -static const char *ddrpll_parents[] __initdata = {"ddrpll_int", "ps_clk"}; -static const char *iopll_parents[] __initdata = {"iopll_int", "ps_clk"}; +static const char *const armpll_parents[] __initconst = {"armpll_int", + "ps_clk"}; +static const char *const ddrpll_parents[] __initconst = {"ddrpll_int", + "ps_clk"}; +static const char *const iopll_parents[] __initconst = {"iopll_int", + "ps_clk"}; static const char *gem0_mux_parents[] __initdata = {"gem0_div1", "dummy_name"}; static const char *gem1_mux_parents[] __initdata = {"gem1_div1", "dummy_name"}; -static const char *can0_mio_mux2_parents[] __initdata = {"can0_gate", +static const char *const can0_mio_mux2_parents[] __initconst = {"can0_gate", "can0_mio_mux"}; -static const char *can1_mio_mux2_parents[] __initdata = {"can1_gate", +static const char *const can1_mio_mux2_parents[] __initconst = {"can1_gate", "can1_mio_mux"}; static const char *dbg_emio_mux_parents[] __initdata = {"dbg_div", "dummy_name"}; -static const char *dbgtrc_emio_input_names[] __initdata = {"trace_emio_clk"}; -static const char *gem0_emio_input_names[] __initdata = {"gem0_emio_clk"}; -static const char *gem1_emio_input_names[] __initdata = {"gem1_emio_clk"}; -static const char *swdt_ext_clk_input_names[] __initdata = {"swdt_ext_clk"}; +static const char *const dbgtrc_emio_input_names[] __initconst = { + "trace_emio_clk"}; +static const char *const gem0_emio_input_names[] __initconst = { + "gem0_emio_clk"}; +static const char *const gem1_emio_input_names[] __initconst = { + "gem1_emio_clk"}; +static const char *const swdt_ext_clk_input_names[] __initconst = { + "swdt_ext_clk"}; static void __init zynq_clk_register_fclk(enum zynq_clk fclk, const char *clk_name, void __iomem *fclk_ctrl_reg, |