[v2,4/8] clk: renesas: cpg-mssr: Add r8a77470 support

Message ID	1522265176-33226-5-git-send-email-biju.das@bp.renesas.com (mailing list archive)
State	Awaiting Upstream, archived
Headers	show Return-Path: <linux-clk-owner@kernel.org> From: Biju Das <biju.das@bp.renesas.com> To: Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com> Cc: Biju Das <biju.das@bp.renesas.com>, Geert Uytterhoeven <geert+renesas@glider.be>, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Simon Horman <horms@verge.net.au>, Chris Paterson <Chris.Paterson2@renesas.com>, Fabrizio Castro <fabrizio.castro@bp.renesas.com> Subject: [PATCH v2 4/8] clk: renesas: cpg-mssr: Add r8a77470 support Date: Wed, 28 Mar 2018 20:26:12 +0100 Message-Id: <1522265176-33226-5-git-send-email-biju.das@bp.renesas.com> In-Reply-To: <1522265176-33226-1-git-send-email-biju.das@bp.renesas.com> References: <1522265176-33226-1-git-send-email-biju.das@bp.renesas.com> Sender: linux-clk-owner@vger.kernel.org Precedence: bulk

diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt index 773a522..c3473df 100644 --- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt @@ -15,6 +15,7 @@ Required Properties: - compatible: Must be one of: - "renesas,r8a7743-cpg-mssr" for the r8a7743 SoC (RZ/G1M) - "renesas,r8a7745-cpg-mssr" for the r8a7745 SoC (RZ/G1E) + - "renesas,r8a77470-cpg-mssr" for the r8a77470 SoC (RZ/G1C) - "renesas,r8a7790-cpg-mssr" for the r8a7790 SoC (R-Car H2) - "renesas,r8a7791-cpg-mssr" for the r8a7791 SoC (R-Car M2-W) - "renesas,r8a7792-cpg-mssr" for the r8a7792 SoC (R-Car V2H) @@ -33,10 +34,12 @@ Required Properties: - clocks: References to external parent clocks, one entry for each entry in clock-names - clock-names: List of external parent clock names. Valid names are: - - "extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7792, r8a7793, r8a7794, - r8a7795, r8a7796, r8a77965, r8a77970, r8a77980, r8a77995) + - "extal" (r8a7743, r8a7745, r8a77470, r8a7790, r8a7791, r8a7792, + r8a7793, r8a7794, r8a7795, r8a7796, r8a77965, r8a77970, + r8a77980, r8a77995) - "extalr" (r8a7795, r8a7796, r8a77965, r8a77970, r8a77980) - - "usb_extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7793, r8a7794) + - "usb_extal" (r8a7743, r8a7745, r8a77470, r8a7790, r8a7791, r8a7793, + r8a7794) - #clock-cells: Must be 2 - For CPG core clocks, the two clock specifier cells must be "CPG_CORE" diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig index 09b893e..dac09ce 100644 --- a/drivers/clk/renesas/Kconfig +++ b/drivers/clk/renesas/Kconfig @@ -7,6 +7,7 @@ config CLK_RENESAS select CLK_R8A7740 if ARCH_R8A7740 select CLK_R8A7743 if ARCH_R8A7743 select CLK_R8A7745 if ARCH_R8A7745 + select CLK_R8A77470 if ARCH_R8A77470 select CLK_R8A7778 if ARCH_R8A7778 select CLK_R8A7779 if ARCH_R8A7779 select CLK_R8A7790 if ARCH_R8A7790 @@ -59,6 +60,10 @@ config CLK_R8A7745 bool "RZ/G1E clock support" if COMPILE_TEST select CLK_RCAR_GEN2_CPG +config CLK_R8A77470 + bool "RZ/G1C clock support" if COMPILE_TEST + select CLK_RCAR_GEN2_CPG + config CLK_R8A7778 bool "R-Car M1A clock support" if COMPILE_TEST select CLK_RENESAS_CPG_MSTP diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile index 6c0f196..a4edea9 100644 --- a/drivers/clk/renesas/Makefile +++ b/drivers/clk/renesas/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_CLK_R8A73A4) += clk-r8a73a4.o obj-$(CONFIG_CLK_R8A7740) += clk-r8a7740.o obj-$(CONFIG_CLK_R8A7743) += r8a7743-cpg-mssr.o obj-$(CONFIG_CLK_R8A7745) += r8a7745-cpg-mssr.o +obj-$(CONFIG_CLK_R8A77470) += r8a77470-cpg-mssr.o obj-$(CONFIG_CLK_R8A7778) += clk-r8a7778.o obj-$(CONFIG_CLK_R8A7779) += clk-r8a7779.o obj-$(CONFIG_CLK_R8A7790) += r8a7790-cpg-mssr.o diff --git a/drivers/clk/renesas/r8a77470-cpg-mssr.c b/drivers/clk/renesas/r8a77470-cpg-mssr.c new file mode 100644 index 0000000..ab0fb10 --- /dev/null +++ b/drivers/clk/renesas/r8a77470-cpg-mssr.c @@ -0,0 +1,229 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * r8a77470 Clock Pulse Generator / Module Standby and Software Reset + * + * Copyright (C) 2018 Renesas Electronics Corp. + */ + +#include <linux/device.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/soc/renesas/rcar-rst.h> + +#include <dt-bindings/clock/r8a77470-cpg-mssr.h> + +#include "renesas-cpg-mssr.h" +#include "rcar-gen2-cpg.h" + +enum clk_ids { + /* Core Clock Outputs exported to DT */ + LAST_DT_CORE_CLK = R8A77470_CLK_OSC, + + /* External Input Clocks */ + CLK_EXTAL, + CLK_USB_EXTAL, + + /* Internal Core Clocks */ + CLK_MAIN, + CLK_PLL0, + CLK_PLL1, + CLK_PLL3, + CLK_PLL1_DIV2, + + /* Module Clocks */ + MOD_CLK_BASE +}; + +static const struct cpg_core_clk r8a77470_core_clks[] __initconst = { + /* External Clock Inputs */ + DEF_INPUT("extal", CLK_EXTAL), + DEF_INPUT("usb_extal", CLK_USB_EXTAL), + + /* Internal Core Clocks */ + DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN2_MAIN, CLK_EXTAL), + DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN2_PLL0, CLK_MAIN), + DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN2_PLL1, CLK_MAIN), + DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN2_PLL3, CLK_MAIN), + + DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), + + /* Core Clock Outputs */ + DEF_BASE("sdh", R8A77470_CLK_SDH, CLK_TYPE_GEN2_SDH, CLK_PLL1), + DEF_BASE("sd0", R8A77470_CLK_SD0, CLK_TYPE_GEN2_SD0, CLK_PLL1), + DEF_BASE("sd1", R8A77470_CLK_SD1, CLK_TYPE_GEN2_SD1, CLK_PLL1), + DEF_BASE("qspi", R8A77470_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2), + DEF_BASE("rcan", R8A77470_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL), + + DEF_FIXED("z2", R8A77470_CLK_Z2, CLK_PLL0, 1, 1), + DEF_FIXED("zx", R8A77470_CLK_ZX, CLK_PLL1, 3, 1), + DEF_FIXED("zs", R8A77470_CLK_ZS, CLK_PLL1, 6, 1), + DEF_FIXED("hp", R8A77470_CLK_HP, CLK_PLL1, 12, 1), + DEF_FIXED("b", R8A77470_CLK_B, CLK_PLL1, 12, 1), + DEF_FIXED("lb", R8A77470_CLK_LB, CLK_PLL1, 24, 1), + DEF_FIXED("p", R8A77470_CLK_P, CLK_PLL1, 24, 1), + DEF_FIXED("cl", R8A77470_CLK_CL, CLK_PLL1, 48, 1), + DEF_FIXED("cp", R8A77470_CLK_CP, CLK_PLL1, 48, 1), + DEF_FIXED("m2", R8A77470_CLK_M2, CLK_PLL1, 8, 1), + DEF_FIXED("zb3", R8A77470_CLK_ZB3, CLK_PLL3, 4, 1), + DEF_FIXED("mp", R8A77470_CLK_MP, CLK_PLL1_DIV2, 15, 1), + DEF_FIXED("cpex", R8A77470_CLK_CPEX, CLK_EXTAL, 2, 1), + DEF_FIXED("r", R8A77470_CLK_R, CLK_PLL1, 49152, 1), + DEF_FIXED("osc", R8A77470_CLK_OSC, CLK_PLL1, 12288, 1), + + DEF_DIV6P1("sd2", R8A77470_CLK_SD2, CLK_PLL1_DIV2, 0x078), +}; + +static const struct mssr_mod_clk r8a77470_mod_clks[] __initconst = { + DEF_MOD("msiof0", 0, R8A77470_CLK_MP), + DEF_MOD("vcp0", 101, R8A77470_CLK_ZS), + DEF_MOD("vpc0", 103, R8A77470_CLK_ZS), + DEF_MOD("tmu1", 111, R8A77470_CLK_P), + DEF_MOD("3dg", 112, R8A77470_CLK_ZS), + DEF_MOD("2d-dmac", 115, R8A77470_CLK_ZS), + DEF_MOD("fdp1-0", 119, R8A77470_CLK_ZS), + DEF_MOD("tmu3", 121, R8A77470_CLK_P), + DEF_MOD("tmu2", 122, R8A77470_CLK_P), + DEF_MOD("cmt0", 124, R8A77470_CLK_R), + DEF_MOD("vsp1du0", 128, R8A77470_CLK_ZS), + DEF_MOD("vsp1-sy", 131, R8A77470_CLK_ZS), + DEF_MOD("msiof2", 205, R8A77470_CLK_MP), + DEF_MOD("msiof1", 208, R8A77470_CLK_MP), + DEF_MOD("sys-dmac1", 218, R8A77470_CLK_ZS), + DEF_MOD("sys-dmac0", 219, R8A77470_CLK_ZS), + DEF_MOD("sdhi2", 312, R8A77470_CLK_SD2), + DEF_MOD("sdhi1", 313, R8A77470_CLK_SD1), + DEF_MOD("sdhi0", 314, R8A77470_CLK_SD0), + DEF_MOD("usbhs-dmac0-ch1", 326, R8A77470_CLK_HP), + DEF_MOD("usbhs-dmac1-ch1", 327, R8A77470_CLK_HP), + DEF_MOD("cmt1", 329, R8A77470_CLK_R), + DEF_MOD("usbhs-dmac0-ch0", 330, R8A77470_CLK_HP), + DEF_MOD("usbhs-dmac1-ch0", 331, R8A77470_CLK_HP), + DEF_MOD("rwdt", 402, R8A77470_CLK_R), + DEF_MOD("irqc", 407, R8A77470_CLK_CP), + DEF_MOD("intc-sys", 408, R8A77470_CLK_ZS), + DEF_MOD("audio-dmac0", 502, R8A77470_CLK_HP), + DEF_MOD("pwm", 523, R8A77470_CLK_P), + DEF_MOD("usb-ehci-0", 703, R8A77470_CLK_MP), + DEF_MOD("usbhs-0", 704, R8A77470_CLK_HP), + DEF_MOD("usb-ehci-1", 705, R8A77470_CLK_MP), + DEF_MOD("usbhs-1", 706, R8A77470_CLK_HP), + DEF_MOD("hscif2", 713, R8A77470_CLK_ZS), + DEF_MOD("scif5", 714, R8A77470_CLK_P), + DEF_MOD("scif4", 715, R8A77470_CLK_P), + DEF_MOD("hscif1", 716, R8A77470_CLK_ZS), + DEF_MOD("hscif0", 717, R8A77470_CLK_ZS), + DEF_MOD("scif3", 718, R8A77470_CLK_P), + DEF_MOD("scif2", 719, R8A77470_CLK_P), + DEF_MOD("scif1", 720, R8A77470_CLK_P), + DEF_MOD("scif0", 721, R8A77470_CLK_P), + DEF_MOD("du1", 723, R8A77470_CLK_ZX), + DEF_MOD("du0", 724, R8A77470_CLK_ZX), + DEF_MOD("ipmmu-sgx", 800, R8A77470_CLK_ZX), + DEF_MOD("etheravb", 812, R8A77470_CLK_HP), + DEF_MOD("ether", 813, R8A77470_CLK_P), + DEF_MOD("gpio5", 907, R8A77470_CLK_CP), + DEF_MOD("gpio4", 908, R8A77470_CLK_CP), + DEF_MOD("gpio3", 909, R8A77470_CLK_CP), + DEF_MOD("gpio2", 910, R8A77470_CLK_CP), + DEF_MOD("gpio1", 911, R8A77470_CLK_CP), + DEF_MOD("gpio0", 912, R8A77470_CLK_CP), + DEF_MOD("can1", 915, R8A77470_CLK_P), + DEF_MOD("can0", 916, R8A77470_CLK_P), + DEF_MOD("qspi_mod-1", 917, R8A77470_CLK_QSPI), + DEF_MOD("qspi_mod-0", 918, R8A77470_CLK_QSPI), + DEF_MOD("i2c4", 927, R8A77470_CLK_HP), + DEF_MOD("i2c3", 928, R8A77470_CLK_HP), + DEF_MOD("i2c2", 929, R8A77470_CLK_HP), + DEF_MOD("i2c1", 930, R8A77470_CLK_HP), + DEF_MOD("i2c0", 931, R8A77470_CLK_HP), + DEF_MOD("ssi-all", 1005, R8A77470_CLK_P), + DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)), + DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)), + DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)), + DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)), + DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)), + DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)), + DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)), + DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)), + DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)), + DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)), + DEF_MOD("scu-all", 1017, R8A77470_CLK_P), + 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)), + DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)), + DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)), + DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)), + DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)), +}; + +static const unsigned int r8a77470_crit_mod_clks[] __initconst = { + MOD_CLK_ID(402), /* RWDT */ + MOD_CLK_ID(408), /* INTC-SYS (GIC) */ +}; + +/* + * CPG Clock Data + */ + +/* + * MD EXTAL PLL0 PLL1 PLL3 + * 14 13 (MHz) *1 *2 + *--------------------------------------------------- + * 0 0 20 x80 x78 x50 + * 0 1 26 x60 x60 x56 + * 1 0 Prohibitted setting + * 1 1 30 x52 x52 x50 + * + * *1 : Table 7.4 indicates VCO output (PLL0 = VCO) + * *2 : Table 7.4 indicates VCO output (PLL1 = VCO) + */ +#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 13) | \ + (((md) & BIT(13)) >> 13)) + +static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[4] __initconst = { + /* EXTAL div PLL1 mult x2 PLL3 mult */ + { 1, 156, 50, }, + { 1, 120, 56, }, + { /* Invalid*/ }, + { 1, 104, 50, }, +}; + +static int __init r8a77470_cpg_mssr_init(struct device *dev) +{ + const struct rcar_gen2_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_gen2_cpg_init(cpg_pll_config, 2, cpg_mode); +} + +const struct cpg_mssr_info r8a77470_cpg_mssr_info __initconst = { + /* Core Clocks */ + .core_clks = r8a77470_core_clks, + .num_core_clks = ARRAY_SIZE(r8a77470_core_clks), + .last_dt_core_clk = LAST_DT_CORE_CLK, + .num_total_core_clks = MOD_CLK_BASE, + + /* Module Clocks */ + .mod_clks = r8a77470_mod_clks, + .num_mod_clks = ARRAY_SIZE(r8a77470_mod_clks), + .num_hw_mod_clks = 12 * 32, + + /* Critical Module Clocks */ + .crit_mod_clks = r8a77470_crit_mod_clks, + .num_crit_mod_clks = ARRAY_SIZE(r8a77470_crit_mod_clks), + + /* Callbacks */ + .init = r8a77470_cpg_mssr_init, + .cpg_clk_register = rcar_gen2_cpg_clk_register, +}; diff --git a/drivers/clk/renesas/rcar-gen2-cpg.c b/drivers/clk/renesas/rcar-gen2-cpg.c index feb1457..0c49f59 100644 --- a/drivers/clk/renesas/rcar-gen2-cpg.c +++ b/drivers/clk/renesas/rcar-gen2-cpg.c @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/slab.h> +#include <linux/sys_soc.h> #include "renesas-cpg-mssr.h" #include "rcar-gen2-cpg.h" @@ -261,6 +262,11 @@ static const struct rcar_gen2_cpg_pll_config *cpg_pll_config __initdata; static unsigned int cpg_pll0_div __initdata; static u32 cpg_mode __initdata; +static const struct soc_device_attribute soc_r8a77470[] = { + { .soc_id = "r8a77470" }, + { /* sentinel */ } +}; + struct clk * __init rcar_gen2_cpg_clk_register(struct device *dev, const struct cpg_core_clk *core, const struct cpg_mssr_info *info, struct clk **clks, void __iomem *base, @@ -327,11 +333,17 @@ struct clk * __init rcar_gen2_cpg_clk_register(struct device *dev, case CLK_TYPE_GEN2_SD0: table = cpg_sd01_div_table; + if (soc_device_match(soc_r8a77470)) + table++; + shift = 4; break; case CLK_TYPE_GEN2_SD1: table = cpg_sd01_div_table; + if (soc_device_match(soc_r8a77470)) + table++; + shift = 0; break; diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index 96c6787..7033b0c 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -652,6 +652,12 @@ static const struct of_device_id cpg_mssr_match[] = { .data = &r8a7745_cpg_mssr_info, }, #endif +#ifdef CONFIG_CLK_R8A77470 + { + .compatible = "renesas,r8a77470-cpg-mssr", + .data = &r8a77470_cpg_mssr_info, + }, +#endif #ifdef CONFIG_CLK_R8A7790 { .compatible = "renesas,r8a7790-cpg-mssr", diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h index 97ccb09..efe2a14 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.h +++ b/drivers/clk/renesas/renesas-cpg-mssr.h @@ -133,6 +133,7 @@ struct cpg_mssr_info { extern const struct cpg_mssr_info r8a7743_cpg_mssr_info; extern const struct cpg_mssr_info r8a7745_cpg_mssr_info; +extern const struct cpg_mssr_info r8a77470_cpg_mssr_info; extern const struct cpg_mssr_info r8a7790_cpg_mssr_info; extern const struct cpg_mssr_info r8a7791_cpg_mssr_info; extern const struct cpg_mssr_info r8a7792_cpg_mssr_info;

[v2,4/8] clk: renesas: cpg-mssr: Add r8a77470 support

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