diff options
author | Geert Uytterhoeven <geert+renesas@glider.be> | 2017-07-12 10:47:36 +0200 |
---|---|---|
committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2017-08-16 09:51:48 +0200 |
commit | d71e851d82c6cfe58bc592ce1e59e924f0374d0f (patch) | |
tree | 99f7d9d8f4bc179204da1b56d61d72c46b7eab27 /drivers/clk/renesas | |
parent | 696997e004d4179f462d2ebd3efeb12a7cec5ef7 (diff) | |
download | linux-d71e851d82c6cfe58bc592ce1e59e924f0374d0f.tar.bz2 |
clk: renesas: cpg-mssr: Add R8A77995 support
Add R-Car D3 (R8A77995) Clock Pulse Generator / Module Standby and
Software Reset support, using the CPG/MSSR driver core and the common
R-Car Gen3 CPG code.
Based on the R-Car Series, 3rd Generation Hardware User's Manual, Rev.
0.55, Jun. 30, 2017.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/clk/renesas')
-rw-r--r-- | drivers/clk/renesas/Kconfig | 5 | ||||
-rw-r--r-- | drivers/clk/renesas/Makefile | 1 | ||||
-rw-r--r-- | drivers/clk/renesas/r8a77995-cpg-mssr.c | 236 | ||||
-rw-r--r-- | drivers/clk/renesas/renesas-cpg-mssr.c | 6 | ||||
-rw-r--r-- | drivers/clk/renesas/renesas-cpg-mssr.h | 1 |
5 files changed, 249 insertions, 0 deletions
diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig index 85526ca39202..eee076deb739 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_R8A77995 if ARCH_R8A77995 select CLK_SH73A0 if ARCH_SH73A0 if CLK_RENESAS @@ -94,6 +95,10 @@ config CLK_R8A7796 bool "R-Car M3-W 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 + config CLK_SH73A0 bool "SH-Mobile AG5 clock support" if COMPILE_TEST select CLK_RENESAS_CPG_MSTP diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile index 02d04124371f..a3bb1fadf1a6 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-$(CONFIG_CLK_R8A77995) += r8a77995-cpg-mssr.o obj-$(CONFIG_CLK_SH73A0) += clk-sh73a0.o # Family diff --git a/drivers/clk/renesas/r8a77995-cpg-mssr.c b/drivers/clk/renesas/r8a77995-cpg-mssr.c new file mode 100644 index 000000000000..e594cf8ee63b --- /dev/null +++ b/drivers/clk/renesas/r8a77995-cpg-mssr.c @@ -0,0 +1,236 @@ +/* + * r8a77995 Clock Pulse Generator / Module Standby and Software Reset + * + * Copyright (C) 2017 Glider bvba + * + * Based on r8a7795-cpg-mssr.c + * + * Copyright (C) 2015 Glider bvba + * Copyright (C) 2015 Renesas Electronics Corp. + * + * 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/r8a77995-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 = R8A77995_CLK_CP, + + /* External Input Clocks */ + CLK_EXTAL, + + /* Internal Core Clocks */ + CLK_MAIN, + CLK_PLL0, + CLK_PLL1, + CLK_PLL3, + CLK_PLL0D2, + CLK_PLL0D3, + CLK_PLL0D5, + CLK_PLL1D2, + CLK_PE, + CLK_S0, + CLK_S1, + CLK_S2, + CLK_S3, + CLK_SDSRC, + CLK_SSPSRC, + + /* Module Clocks */ + MOD_CLK_BASE +}; + +static const struct cpg_core_clk r8a77995_core_clks[] __initconst = { + /* External Clock Inputs */ + DEF_INPUT("extal", CLK_EXTAL), + + /* Internal Core Clocks */ + DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL), + DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN), + DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN), + + DEF_FIXED(".pll0", CLK_PLL0, CLK_MAIN, 4, 250), + DEF_FIXED(".pll0d2", CLK_PLL0D2, CLK_PLL0, 2, 1), + DEF_FIXED(".pll0d3", CLK_PLL0D3, CLK_PLL0, 3, 1), + DEF_FIXED(".pll0d5", CLK_PLL0D5, CLK_PLL0, 5, 1), + DEF_FIXED(".pll1d2", CLK_PLL1D2, CLK_PLL1, 2, 1), + DEF_FIXED(".pe", CLK_PE, CLK_PLL0D3, 4, 1), + DEF_FIXED(".s0", CLK_S0, CLK_PLL1, 2, 1), + DEF_FIXED(".s1", CLK_S1, CLK_PLL1, 3, 1), + DEF_FIXED(".s2", CLK_S2, CLK_PLL1, 4, 1), + DEF_FIXED(".s3", CLK_S3, CLK_PLL1, 6, 1), + DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1, 2, 1), + + /* Core Clock Outputs */ + DEF_FIXED("z2", R8A77995_CLK_Z2, CLK_PLL0D3, 1, 1), + DEF_FIXED("ztr", R8A77995_CLK_ZTR, CLK_PLL1, 6, 1), + DEF_FIXED("zt", R8A77995_CLK_ZT, CLK_PLL1, 4, 1), + DEF_FIXED("zx", R8A77995_CLK_ZX, CLK_PLL1, 3, 1), + DEF_FIXED("s0d1", R8A77995_CLK_S0D1, CLK_S0, 1, 1), + DEF_FIXED("s1d1", R8A77995_CLK_S1D1, CLK_S1, 1, 1), + DEF_FIXED("s1d2", R8A77995_CLK_S1D2, CLK_S1, 2, 1), + DEF_FIXED("s1d4", R8A77995_CLK_S1D4, CLK_S1, 4, 1), + DEF_FIXED("s2d1", R8A77995_CLK_S2D1, CLK_S2, 1, 1), + DEF_FIXED("s2d2", R8A77995_CLK_S2D2, CLK_S2, 2, 1), + DEF_FIXED("s2d4", R8A77995_CLK_S2D4, CLK_S2, 4, 1), + DEF_FIXED("s3d1", R8A77995_CLK_S3D1, CLK_S3, 1, 1), + DEF_FIXED("s3d2", R8A77995_CLK_S3D2, CLK_S3, 2, 1), + DEF_FIXED("s3d4", R8A77995_CLK_S3D4, CLK_S3, 4, 1), + + DEF_FIXED("cl", R8A77995_CLK_CL, CLK_PLL1, 48, 1), + DEF_FIXED("cp", R8A77995_CLK_CP, CLK_EXTAL, 2, 1), + DEF_FIXED("osc", R8A77995_CLK_OSC, CLK_EXTAL, 384, 1), + DEF_FIXED("r", R8A77995_CLK_R, CLK_EXTAL, 1536, 1), + + DEF_GEN3_PE("s1d4c", R8A77995_CLK_S1D4C, CLK_S1, 4, CLK_PE, 2), + DEF_GEN3_PE("s3d1c", R8A77995_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1), + DEF_GEN3_PE("s3d2c", R8A77995_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2), + DEF_GEN3_PE("s3d4c", R8A77995_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4), + + DEF_GEN3_SD("sd0", R8A77995_CLK_SD0, CLK_SDSRC, 0x268), + + DEF_DIV6P1("canfd", R8A77995_CLK_CANFD, CLK_PLL0D3, 0x244), + DEF_DIV6P1("mso", R8A77995_CLK_MSO, CLK_PLL1D2, 0x014), +}; + +static const struct mssr_mod_clk r8a77995_mod_clks[] __initconst = { + DEF_MOD("scif5", 202, R8A77995_CLK_S3D4C), + DEF_MOD("scif4", 203, R8A77995_CLK_S3D4C), + DEF_MOD("scif3", 204, R8A77995_CLK_S3D4C), + DEF_MOD("scif1", 206, R8A77995_CLK_S3D4C), + DEF_MOD("scif0", 207, R8A77995_CLK_S3D4C), + DEF_MOD("msiof3", 208, R8A77995_CLK_MSO), + DEF_MOD("msiof2", 209, R8A77995_CLK_MSO), + DEF_MOD("msiof1", 210, R8A77995_CLK_MSO), + DEF_MOD("msiof0", 211, R8A77995_CLK_MSO), + DEF_MOD("sys-dmac2", 217, R8A77995_CLK_S3D1), + DEF_MOD("sys-dmac1", 218, R8A77995_CLK_S3D1), + DEF_MOD("sys-dmac0", 219, R8A77995_CLK_S3D1), + DEF_MOD("cmt3", 300, R8A77995_CLK_R), + DEF_MOD("cmt2", 301, R8A77995_CLK_R), + DEF_MOD("cmt1", 302, R8A77995_CLK_R), + DEF_MOD("cmt0", 303, R8A77995_CLK_R), + DEF_MOD("scif2", 310, R8A77995_CLK_S3D4C), + DEF_MOD("emmc0", 312, R8A77995_CLK_SD0), + DEF_MOD("usb-dmac0", 330, R8A77995_CLK_S3D1), + DEF_MOD("usb-dmac1", 331, R8A77995_CLK_S3D1), + DEF_MOD("rwdt", 402, R8A77995_CLK_R), + DEF_MOD("intc-ex", 407, R8A77995_CLK_CP), + DEF_MOD("intc-ap", 408, R8A77995_CLK_S3D1), + DEF_MOD("audmac0", 502, R8A77995_CLK_S3D1), + DEF_MOD("hscif3", 517, R8A77995_CLK_S3D1C), + DEF_MOD("hscif0", 520, R8A77995_CLK_S3D1C), + DEF_MOD("thermal", 522, R8A77995_CLK_CP), + DEF_MOD("pwm", 523, R8A77995_CLK_S3D4C), + DEF_MOD("fcpvd1", 602, R8A77995_CLK_S1D2), + DEF_MOD("fcpvd0", 603, R8A77995_CLK_S1D2), + DEF_MOD("fcpvbs", 607, R8A77995_CLK_S0D1), + DEF_MOD("vspd1", 622, R8A77995_CLK_S1D2), + DEF_MOD("vspd0", 623, R8A77995_CLK_S1D2), + DEF_MOD("vspbs", 627, R8A77995_CLK_S0D1), + DEF_MOD("ehci0", 703, R8A77995_CLK_S3D2), + DEF_MOD("hsusb", 704, R8A77995_CLK_S3D2), + DEF_MOD("du1", 723, R8A77995_CLK_S2D1), + DEF_MOD("du0", 724, R8A77995_CLK_S2D1), + DEF_MOD("lvds", 727, R8A77995_CLK_S2D1), + DEF_MOD("vin7", 804, R8A77995_CLK_S1D2), + DEF_MOD("vin6", 805, R8A77995_CLK_S1D2), + DEF_MOD("vin5", 806, R8A77995_CLK_S1D2), + DEF_MOD("vin4", 807, R8A77995_CLK_S1D2), + DEF_MOD("etheravb", 812, R8A77995_CLK_S3D2), + DEF_MOD("imr0", 823, R8A77995_CLK_S1D2), + DEF_MOD("gpio6", 906, R8A77995_CLK_S3D4), + DEF_MOD("gpio5", 907, R8A77995_CLK_S3D4), + DEF_MOD("gpio4", 908, R8A77995_CLK_S3D4), + DEF_MOD("gpio3", 909, R8A77995_CLK_S3D4), + DEF_MOD("gpio2", 910, R8A77995_CLK_S3D4), + DEF_MOD("gpio1", 911, R8A77995_CLK_S3D4), + DEF_MOD("gpio0", 912, R8A77995_CLK_S3D4), + DEF_MOD("can-fd", 914, R8A77995_CLK_S3D2), + DEF_MOD("can-if1", 915, R8A77995_CLK_S3D4), + DEF_MOD("can-if0", 916, R8A77995_CLK_S3D4), + DEF_MOD("i2c3", 928, R8A77995_CLK_S3D2), + DEF_MOD("i2c2", 929, R8A77995_CLK_S3D2), + DEF_MOD("i2c1", 930, R8A77995_CLK_S3D2), + DEF_MOD("i2c0", 931, R8A77995_CLK_S3D2), + DEF_MOD("ssi-all", 1005, R8A77995_CLK_S3D4), + DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)), + DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)), + DEF_MOD("scu-all", 1017, R8A77995_CLK_S3D4), + DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)), + DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)), + DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)), + DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)), + DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)), + DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)), +}; + +static const unsigned int r8a77995_crit_mod_clks[] __initconst = { + MOD_CLK_ID(408), /* INTC-AP (GIC) */ +}; + + +/* + * CPG Clock Data + */ + +/* + * MD19 EXTAL (MHz) PLL0 PLL1 PLL3 + *-------------------------------------------------------------------- + * 0 48 x 1 x250/4 x100/3 x100/3 + * 1 48 x 1 x250/4 x100/3 x116/6 + */ +#define CPG_PLL_CONFIG_INDEX(md) (((md) & BIT(19)) >> 19) + +static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] __initconst = { + /* EXTAL div PLL1 mult/div PLL3 mult/div */ + { 1, 100, 3, 100, 3, }, + { 1, 100, 3, 116, 6, }, +}; + +static int __init r8a77995_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, 0, cpg_mode); +} + +const struct cpg_mssr_info r8a77995_cpg_mssr_info __initconst = { + /* Core Clocks */ + .core_clks = r8a77995_core_clks, + .num_core_clks = ARRAY_SIZE(r8a77995_core_clks), + .last_dt_core_clk = LAST_DT_CORE_CLK, + .num_total_core_clks = MOD_CLK_BASE, + + /* Module Clocks */ + .mod_clks = r8a77995_mod_clks, + .num_mod_clks = ARRAY_SIZE(r8a77995_mod_clks), + .num_hw_mod_clks = 12 * 32, + + /* Critical Module Clocks */ + .crit_mod_clks = r8a77995_crit_mod_clks, + .num_crit_mod_clks = ARRAY_SIZE(r8a77995_crit_mod_clks), + + /* Callbacks */ + .init = r8a77995_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 1f607c806f9b..e580a5e6346c 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_R8A77995 + { + .compatible = "renesas,r8a77995-cpg-mssr", + .data = &r8a77995_cpg_mssr_info, + }, +#endif { /* sentinel */ } }; diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h index 43d7c7f6832d..94b9071d1061 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 r8a77995_cpg_mssr_info; /* |