diff options
| -rw-r--r-- | Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt | 5 | ||||
| -rw-r--r-- | drivers/clk/renesas/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/clk/renesas/Makefile | 1 | ||||
| -rw-r--r-- | drivers/clk/renesas/clk-mstp.c | 5 | ||||
| -rw-r--r-- | drivers/clk/renesas/clk-rcar-gen2.c | 1 | ||||
| -rw-r--r-- | drivers/clk/renesas/r8a77970-cpg-mssr.c | 199 | ||||
| -rw-r--r-- | drivers/clk/renesas/renesas-cpg-mssr.c | 6 | ||||
| -rw-r--r-- | drivers/clk/renesas/renesas-cpg-mssr.h | 1 | ||||
| -rw-r--r-- | include/dt-bindings/clock/r8a77970-cpg-mssr.h | 48 |
9 files changed, 264 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt index 316e13686568..f1890d0777a6 100644 --- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt @@ -22,6 +22,7 @@ Required Properties: - "renesas,r8a7794-cpg-mssr" for the r8a7794 SoC (R-Car E2) - "renesas,r8a7795-cpg-mssr" for the r8a7795 SoC (R-Car H3) - "renesas,r8a7796-cpg-mssr" for the r8a7796 SoC (R-Car M3-W) + - "renesas,r8a77970-cpg-mssr" for the r8a77970 SoC (R-Car V3M) - "renesas,r8a77995-cpg-mssr" for the r8a77995 SoC (R-Car D3) - reg: Base address and length of the memory resource used by the CPG/MSSR @@ -31,8 +32,8 @@ Required Properties: clock-names - clock-names: List of external parent clock names. Valid names are: - "extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7792, r8a7793, r8a7794, - r8a7795, r8a7796, r8a77995) - - "extalr" (r8a7795, r8a7796) + r8a7795, r8a7796, r8a77970, r8a77995) + - "extalr" (r8a7795, r8a7796, r8a77970) - "usb_extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7793, r8a7794) - #clock-cells: Must be 2 diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig index acbb38151ba1..43b5a89c4b28 100644 --- a/drivers/clk/renesas/Kconfig +++ b/drivers/clk/renesas/Kconfig @@ -15,6 +15,7 @@ config CLK_RENESAS select CLK_R8A7794 if ARCH_R8A7794 select CLK_R8A7795 if ARCH_R8A7795 select CLK_R8A7796 if ARCH_R8A7796 + select CLK_R8A77970 if ARCH_R8A77970 select CLK_R8A77995 if ARCH_R8A77995 select CLK_SH73A0 if ARCH_SH73A0 @@ -95,6 +96,10 @@ config CLK_R8A7796 bool "R-Car M3-W clock support" if COMPILE_TEST select CLK_RCAR_GEN3_CPG +config CLK_R8A77970 + bool "R-Car V3M clock support" if COMPILE_TEST + select CLK_RCAR_GEN3_CPG + config CLK_R8A77995 bool "R-Car D3 clock support" if COMPILE_TEST select CLK_RCAR_GEN3_CPG diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile index 9bda3ec5b199..306861c74a87 100644 --- a/drivers/clk/renesas/Makefile +++ b/drivers/clk/renesas/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_CLK_R8A7792) += r8a7792-cpg-mssr.o obj-$(CONFIG_CLK_R8A7794) += r8a7794-cpg-mssr.o obj-$(CONFIG_CLK_R8A7795) += r8a7795-cpg-mssr.o obj-$(CONFIG_CLK_R8A7796) += r8a7796-cpg-mssr.o +obj-$(CONFIG_CLK_R8A77970) += r8a77970-cpg-mssr.o obj-$(CONFIG_CLK_R8A77995) += r8a77995-cpg-mssr.o obj-$(CONFIG_CLK_SH73A0) += clk-sh73a0.o diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c index 500a9e4e03c4..c944cc421e30 100644 --- a/drivers/clk/renesas/clk-mstp.c +++ b/drivers/clk/renesas/clk-mstp.c @@ -156,10 +156,8 @@ static struct clk * __init cpg_mstp_clock_register(const char *name, struct clk *clk; clock = kzalloc(sizeof(*clock), GFP_KERNEL); - if (!clock) { - pr_err("%s: failed to allocate MSTP clock.\n", __func__); + if (!clock) return ERR_PTR(-ENOMEM); - } init.name = name; init.ops = &cpg_mstp_clock_ops; @@ -196,7 +194,6 @@ static void __init cpg_mstp_clocks_init(struct device_node *np) if (group == NULL || clks == NULL) { kfree(group); kfree(clks); - pr_err("%s: failed to allocate group\n", __func__); return; } diff --git a/drivers/clk/renesas/clk-rcar-gen2.c b/drivers/clk/renesas/clk-rcar-gen2.c index 0b2e56d0d94b..d14cbe1ca29a 100644 --- a/drivers/clk/renesas/clk-rcar-gen2.c +++ b/drivers/clk/renesas/clk-rcar-gen2.c @@ -423,7 +423,6 @@ static void __init rcar_gen2_cpg_clocks_init(struct device_node *np) /* We're leaking memory on purpose, there's no point in cleaning * up as the system won't boot anyway. */ - pr_err("%s: failed to allocate cpg\n", __func__); return; } diff --git a/drivers/clk/renesas/r8a77970-cpg-mssr.c b/drivers/clk/renesas/r8a77970-cpg-mssr.c new file mode 100644 index 000000000000..72f98527473a --- /dev/null +++ b/drivers/clk/renesas/r8a77970-cpg-mssr.c @@ -0,0 +1,199 @@ +/* + * r8a77970 Clock Pulse Generator / Module Standby and Software Reset + * + * Copyright (C) 2017 Cogent Embedded Inc. + * + * Based on r8a7795-cpg-mssr.c + * + * Copyright (C) 2015 Glider bvba + * + * 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 of the License. + */ + +#include <linux/device.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/soc/renesas/rcar-rst.h> + +#include <dt-bindings/clock/r8a77970-cpg-mssr.h> + +#include "renesas-cpg-mssr.h" +#include "rcar-gen3-cpg.h" + +enum clk_ids { + /* Core Clock Outputs exported to DT */ + LAST_DT_CORE_CLK = R8A77970_CLK_OSC, + + /* External Input Clocks */ + CLK_EXTAL, + CLK_EXTALR, + + /* Internal Core Clocks */ + CLK_MAIN, + CLK_PLL0, + CLK_PLL1, + CLK_PLL3, + CLK_PLL1_DIV2, + CLK_PLL1_DIV4, + + /* Module Clocks */ + MOD_CLK_BASE +}; + +static const struct cpg_core_clk r8a77970_core_clks[] __initconst = { + /* External Clock Inputs */ + DEF_INPUT("extal", CLK_EXTAL), + DEF_INPUT("extalr", CLK_EXTALR), + + /* Internal Core Clocks */ + DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL), + DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN), + DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN), + DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN), + + DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), + DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1), + + /* Core Clock Outputs */ + DEF_FIXED("ztr", R8A77970_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), + DEF_FIXED("ztrd2", R8A77970_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), + DEF_FIXED("zt", R8A77970_CLK_ZT, CLK_PLL1_DIV2, 4, 1), + DEF_FIXED("zx", R8A77970_CLK_ZX, CLK_PLL1_DIV2, 3, 1), + DEF_FIXED("s1d1", R8A77970_CLK_S1D1, CLK_PLL1_DIV2, 4, 1), + DEF_FIXED("s1d2", R8A77970_CLK_S1D2, CLK_PLL1_DIV2, 8, 1), + DEF_FIXED("s1d4", R8A77970_CLK_S1D4, CLK_PLL1_DIV2, 16, 1), + DEF_FIXED("s2d1", R8A77970_CLK_S2D1, CLK_PLL1_DIV2, 6, 1), + DEF_FIXED("s2d2", R8A77970_CLK_S2D2, CLK_PLL1_DIV2, 12, 1), + DEF_FIXED("s2d4", R8A77970_CLK_S2D4, CLK_PLL1_DIV2, 24, 1), + + DEF_FIXED("cl", R8A77970_CLK_CL, CLK_PLL1_DIV2, 48, 1), + DEF_FIXED("cp", R8A77970_CLK_CP, CLK_EXTAL, 2, 1), + + DEF_DIV6P1("canfd", R8A77970_CLK_CANFD, CLK_PLL1_DIV4, 0x244), + DEF_DIV6P1("mso", R8A77970_CLK_MSO, CLK_PLL1_DIV4, 0x014), + DEF_DIV6P1("csi0", R8A77970_CLK_CSI0, CLK_PLL1_DIV4, 0x00c), + + DEF_FIXED("osc", R8A77970_CLK_OSC, CLK_PLL1_DIV2, 12*1024, 1), + DEF_FIXED("r", R8A77970_CLK_R, CLK_EXTALR, 1, 1), +}; + +static const struct mssr_mod_clk r8a77970_mod_clks[] __initconst = { + DEF_MOD("ivcp1e", 127, R8A77970_CLK_S2D1), + DEF_MOD("scif4", 203, R8A77970_CLK_S2D4), + DEF_MOD("scif3", 204, R8A77970_CLK_S2D4), + DEF_MOD("scif1", 206, R8A77970_CLK_S2D4), + DEF_MOD("scif0", 207, R8A77970_CLK_S2D4), + DEF_MOD("msiof3", 208, R8A77970_CLK_MSO), + DEF_MOD("msiof2", 209, R8A77970_CLK_MSO), + DEF_MOD("msiof1", 210, R8A77970_CLK_MSO), + DEF_MOD("msiof0", 211, R8A77970_CLK_MSO), + DEF_MOD("mfis", 213, R8A77970_CLK_S2D2), + DEF_MOD("sys-dmac2", 217, R8A77970_CLK_S2D1), + DEF_MOD("sys-dmac1", 218, R8A77970_CLK_S2D1), + DEF_MOD("rwdt", 402, R8A77970_CLK_R), + DEF_MOD("intc-ex", 407, R8A77970_CLK_CP), + DEF_MOD("intc-ap", 408, R8A77970_CLK_S2D1), + DEF_MOD("hscif3", 517, R8A77970_CLK_S2D1), + DEF_MOD("hscif2", 518, R8A77970_CLK_S2D1), + DEF_MOD("hscif1", 519, R8A77970_CLK_S2D1), + DEF_MOD("hscif0", 520, R8A77970_CLK_S2D1), + DEF_MOD("thermal", 522, R8A77970_CLK_CP), + DEF_MOD("pwm", 523, R8A77970_CLK_S2D4), + DEF_MOD("fcpvd0", 603, R8A77970_CLK_S2D1), + DEF_MOD("vspd0", 623, R8A77970_CLK_S2D1), + DEF_MOD("csi40", 716, R8A77970_CLK_CSI0), + DEF_MOD("du0", 724, R8A77970_CLK_S2D1), + DEF_MOD("vin3", 808, R8A77970_CLK_S2D1), + DEF_MOD("vin2", 809, R8A77970_CLK_S2D1), + DEF_MOD("vin1", 810, R8A77970_CLK_S2D1), + DEF_MOD("vin0", 811, R8A77970_CLK_S2D1), + DEF_MOD("etheravb", 812, R8A77970_CLK_S2D2), + DEF_MOD("gpio5", 907, R8A77970_CLK_CP), + DEF_MOD("gpio4", 908, R8A77970_CLK_CP), + DEF_MOD("gpio3", 909, R8A77970_CLK_CP), + DEF_MOD("gpio2", 910, R8A77970_CLK_CP), + DEF_MOD("gpio1", 911, R8A77970_CLK_CP), + DEF_MOD("gpio0", 912, R8A77970_CLK_CP), + DEF_MOD("can-fd", 914, R8A77970_CLK_S2D2), + DEF_MOD("i2c4", 927, R8A77970_CLK_S2D2), + DEF_MOD("i2c3", 928, R8A77970_CLK_S2D2), + DEF_MOD("i2c2", 929, R8A77970_CLK_S2D2), + DEF_MOD("i2c1", 930, R8A77970_CLK_S2D2), + DEF_MOD("i2c0", 931, R8A77970_CLK_S2D2), +}; + +static const unsigned int r8a77970_crit_mod_clks[] __initconst = { + MOD_CLK_ID(408), /* INTC-AP (GIC) */ +}; + + +/* + * CPG Clock Data + */ + +/* + * MD EXTAL PLL0 PLL1 PLL3 + * 14 13 19 (MHz) + *------------------------------------------------- + * 0 0 0 16.66 x 1 x192 x192 x96 + * 0 0 1 16.66 x 1 x192 x192 x80 + * 0 1 0 20 x 1 x160 x160 x80 + * 0 1 1 20 x 1 x160 x160 x66 + * 1 0 0 27 / 2 x236 x236 x118 + * 1 0 1 27 / 2 x236 x236 x98 + * 1 1 0 33.33 / 2 x192 x192 x96 + * 1 1 1 33.33 / 2 x192 x192 x80 + */ +#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 12) | \ + (((md) & BIT(13)) >> 12) | \ + (((md) & BIT(19)) >> 19)) + +static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[8] __initconst = { + /* EXTAL div PLL1 mult/div PLL3 mult/div */ + { 1, 192, 1, 96, 1, }, + { 1, 192, 1, 80, 1, }, + { 1, 160, 1, 80, 1, }, + { 1, 160, 1, 66, 1, }, + { 2, 236, 1, 118, 1, }, + { 2, 236, 1, 98, 1, }, + { 2, 192, 1, 96, 1, }, + { 2, 192, 1, 80, 1, }, +}; + +static int __init r8a77970_cpg_mssr_init(struct device *dev) +{ + const struct rcar_gen3_cpg_pll_config *cpg_pll_config; + u32 cpg_mode; + int error; + + error = rcar_rst_read_mode_pins(&cpg_mode); + if (error) + return error; + + cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; + + return rcar_gen3_cpg_init(cpg_pll_config, CLK_EXTALR, cpg_mode); +} + +const struct cpg_mssr_info r8a77970_cpg_mssr_info __initconst = { + /* Core Clocks */ + .core_clks = r8a77970_core_clks, + .num_core_clks = ARRAY_SIZE(r8a77970_core_clks), + .last_dt_core_clk = LAST_DT_CORE_CLK, + .num_total_core_clks = MOD_CLK_BASE, + + /* Module Clocks */ + .mod_clks = r8a77970_mod_clks, + .num_mod_clks = ARRAY_SIZE(r8a77970_mod_clks), + .num_hw_mod_clks = 12 * 32, + + /* Critical Module Clocks */ + .crit_mod_clks = r8a77970_crit_mod_clks, + .num_crit_mod_clks = ARRAY_SIZE(r8a77970_crit_mod_clks), + + /* Callbacks */ + .init = r8a77970_cpg_mssr_init, + .cpg_clk_register = rcar_gen3_cpg_clk_register, +}; diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index e580a5e6346c..1779b0cc7a2a 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -680,6 +680,12 @@ static const struct of_device_id cpg_mssr_match[] = { .data = &r8a7796_cpg_mssr_info, }, #endif +#ifdef CONFIG_CLK_R8A77970 + { + .compatible = "renesas,r8a77970-cpg-mssr", + .data = &r8a77970_cpg_mssr_info, + }, +#endif #ifdef CONFIG_CLK_R8A77995 { .compatible = "renesas,r8a77995-cpg-mssr", diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h index 94b9071d1061..66528ce3eb37 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.h +++ b/drivers/clk/renesas/renesas-cpg-mssr.h @@ -138,6 +138,7 @@ extern const struct cpg_mssr_info r8a7792_cpg_mssr_info; extern const struct cpg_mssr_info r8a7794_cpg_mssr_info; extern const struct cpg_mssr_info r8a7795_cpg_mssr_info; extern const struct cpg_mssr_info r8a7796_cpg_mssr_info; +extern const struct cpg_mssr_info r8a77970_cpg_mssr_info; extern const struct cpg_mssr_info r8a77995_cpg_mssr_info; diff --git a/include/dt-bindings/clock/r8a77970-cpg-mssr.h b/include/dt-bindings/clock/r8a77970-cpg-mssr.h new file mode 100644 index 000000000000..4146395595b1 --- /dev/null +++ b/include/dt-bindings/clock/r8a77970-cpg-mssr.h @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2016 Renesas Electronics Corp. + * Copyright (C) 2017 Cogent Embedded, 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. + */ +#ifndef __DT_BINDINGS_CLOCK_R8A77970_CPG_MSSR_H__ +#define __DT_BINDINGS_CLOCK_R8A77970_CPG_MSSR_H__ + +#include <dt-bindings/clock/renesas-cpg-mssr.h> + +/* r8a77970 CPG Core Clocks */ +#define R8A77970_CLK_Z2 0 +#define R8A77970_CLK_ZR 1 +#define R8A77970_CLK_ZTR 2 +#define R8A77970_CLK_ZTRD2 3 +#define R8A77970_CLK_ZT 4 +#define R8A77970_CLK_ZX 5 +#define R8A77970_CLK_S1D1 6 +#define R8A77970_CLK_S1D2 7 +#define R8A77970_CLK_S1D4 8 +#define R8A77970_CLK_S2D1 9 +#define R8A77970_CLK_S2D2 10 +#define R8A77970_CLK_S2D4 11 +#define R8A77970_CLK_LB 12 +#define R8A77970_CLK_CL 13 +#define R8A77970_CLK_ZB3 14 +#define R8A77970_CLK_ZB3D2 15 +#define R8A77970_CLK_DDR 16 +#define R8A77970_CLK_CR 17 +#define R8A77970_CLK_CRD2 18 +#define R8A77970_CLK_SD0H 19 +#define R8A77970_CLK_SD0 20 +#define R8A77970_CLK_RPC 21 +#define R8A77970_CLK_RPCD2 22 +#define R8A77970_CLK_MSO 23 +#define R8A77970_CLK_CANFD 24 +#define R8A77970_CLK_CSI0 25 +#define R8A77970_CLK_FRAY 26 +#define R8A77970_CLK_CP 27 +#define R8A77970_CLK_CPEX 28 +#define R8A77970_CLK_R 29 +#define R8A77970_CLK_OSC 30 + +#endif /* __DT_BINDINGS_CLOCK_R8A77970_CPG_MSSR_H__ */ |