277 lines · c
1// SPDX-License-Identifier: GPL-2.02/*3 * r8a7742 Clock Pulse Generator / Module Standby and Software Reset4 *5 * Copyright (C) 2020 Renesas Electronics Corp.6 */7 8#include <linux/device.h>9#include <linux/init.h>10#include <linux/kernel.h>11#include <linux/soc/renesas/rcar-rst.h>12 13#include <dt-bindings/clock/r8a7742-cpg-mssr.h>14 15#include "renesas-cpg-mssr.h"16#include "rcar-gen2-cpg.h"17 18enum clk_ids {19 /* Core Clock Outputs exported to DT */20 LAST_DT_CORE_CLK = R8A7742_CLK_OSC,21 22 /* External Input Clocks */23 CLK_EXTAL,24 CLK_USB_EXTAL,25 26 /* Internal Core Clocks */27 CLK_MAIN,28 CLK_PLL0,29 CLK_PLL1,30 CLK_PLL3,31 CLK_PLL1_DIV2,32 33 /* Module Clocks */34 MOD_CLK_BASE35};36 37static const struct cpg_core_clk r8a7742_core_clks[] __initconst = {38 /* External Clock Inputs */39 DEF_INPUT("extal", CLK_EXTAL),40 DEF_INPUT("usb_extal", CLK_USB_EXTAL),41 42 /* Internal Core Clocks */43 DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN2_MAIN, CLK_EXTAL),44 DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN2_PLL0, CLK_MAIN),45 DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN2_PLL1, CLK_MAIN),46 DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN2_PLL3, CLK_MAIN),47 48 DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1),49 50 /* Core Clock Outputs */51 DEF_BASE("z", R8A7742_CLK_Z, CLK_TYPE_GEN2_Z, CLK_PLL0),52 DEF_BASE("lb", R8A7742_CLK_LB, CLK_TYPE_GEN2_LB, CLK_PLL1),53 DEF_BASE("sdh", R8A7742_CLK_SDH, CLK_TYPE_GEN2_SDH, CLK_PLL1),54 DEF_BASE("sd0", R8A7742_CLK_SD0, CLK_TYPE_GEN2_SD0, CLK_PLL1),55 DEF_BASE("sd1", R8A7742_CLK_SD1, CLK_TYPE_GEN2_SD1, CLK_PLL1),56 DEF_BASE("qspi", R8A7742_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2),57 DEF_BASE("rcan", R8A7742_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL),58 59 DEF_FIXED("z2", R8A7742_CLK_Z2, CLK_PLL1, 2, 1),60 DEF_FIXED("zg", R8A7742_CLK_ZG, CLK_PLL1, 3, 1),61 DEF_FIXED("zx", R8A7742_CLK_ZX, CLK_PLL1, 3, 1),62 DEF_FIXED("zs", R8A7742_CLK_ZS, CLK_PLL1, 6, 1),63 DEF_FIXED("hp", R8A7742_CLK_HP, CLK_PLL1, 12, 1),64 DEF_FIXED("b", R8A7742_CLK_B, CLK_PLL1, 12, 1),65 DEF_FIXED("p", R8A7742_CLK_P, CLK_PLL1, 24, 1),66 DEF_FIXED("cl", R8A7742_CLK_CL, CLK_PLL1, 48, 1),67 DEF_FIXED("m2", R8A7742_CLK_M2, CLK_PLL1, 8, 1),68 DEF_FIXED("zb3", R8A7742_CLK_ZB3, CLK_PLL3, 4, 1),69 DEF_FIXED("zb3d2", R8A7742_CLK_ZB3D2, CLK_PLL3, 8, 1),70 DEF_FIXED("ddr", R8A7742_CLK_DDR, CLK_PLL3, 8, 1),71 DEF_FIXED("mp", R8A7742_CLK_MP, CLK_PLL1_DIV2, 15, 1),72 DEF_FIXED("cp", R8A7742_CLK_CP, CLK_EXTAL, 2, 1),73 DEF_FIXED("r", R8A7742_CLK_R, CLK_PLL1, 49152, 1),74 DEF_FIXED("osc", R8A7742_CLK_OSC, CLK_PLL1, 12288, 1),75 76 DEF_DIV6P1("sd2", R8A7742_CLK_SD2, CLK_PLL1_DIV2, 0x078),77 DEF_DIV6P1("sd3", R8A7742_CLK_SD3, CLK_PLL1_DIV2, 0x26c),78 DEF_DIV6P1("mmc0", R8A7742_CLK_MMC0, CLK_PLL1_DIV2, 0x240),79 DEF_DIV6P1("mmc1", R8A7742_CLK_MMC1, CLK_PLL1_DIV2, 0x244),80};81 82static const struct mssr_mod_clk r8a7742_mod_clks[] __initconst = {83 DEF_MOD("msiof0", 0, R8A7742_CLK_MP),84 DEF_MOD("vcp1", 100, R8A7742_CLK_ZS),85 DEF_MOD("vcp0", 101, R8A7742_CLK_ZS),86 DEF_MOD("vpc1", 102, R8A7742_CLK_ZS),87 DEF_MOD("vpc0", 103, R8A7742_CLK_ZS),88 DEF_MOD("tmu1", 111, R8A7742_CLK_P),89 DEF_MOD("3dg", 112, R8A7742_CLK_ZG),90 DEF_MOD("2d-dmac", 115, R8A7742_CLK_ZS),91 DEF_MOD("fdp1-2", 117, R8A7742_CLK_ZS),92 DEF_MOD("fdp1-1", 118, R8A7742_CLK_ZS),93 DEF_MOD("fdp1-0", 119, R8A7742_CLK_ZS),94 DEF_MOD("tmu3", 121, R8A7742_CLK_P),95 DEF_MOD("tmu2", 122, R8A7742_CLK_P),96 DEF_MOD("cmt0", 124, R8A7742_CLK_R),97 DEF_MOD("tmu0", 125, R8A7742_CLK_CP),98 DEF_MOD("vsp1du1", 127, R8A7742_CLK_ZS),99 DEF_MOD("vsp1du0", 128, R8A7742_CLK_ZS),100 DEF_MOD("vspr", 130, R8A7742_CLK_ZS),101 DEF_MOD("vsps", 131, R8A7742_CLK_ZS),102 DEF_MOD("scifa2", 202, R8A7742_CLK_MP),103 DEF_MOD("scifa1", 203, R8A7742_CLK_MP),104 DEF_MOD("scifa0", 204, R8A7742_CLK_MP),105 DEF_MOD("msiof2", 205, R8A7742_CLK_MP),106 DEF_MOD("scifb0", 206, R8A7742_CLK_MP),107 DEF_MOD("scifb1", 207, R8A7742_CLK_MP),108 DEF_MOD("msiof1", 208, R8A7742_CLK_MP),109 DEF_MOD("msiof3", 215, R8A7742_CLK_MP),110 DEF_MOD("scifb2", 216, R8A7742_CLK_MP),111 DEF_MOD("sys-dmac1", 218, R8A7742_CLK_ZS),112 DEF_MOD("sys-dmac0", 219, R8A7742_CLK_ZS),113 DEF_MOD("iic2", 300, R8A7742_CLK_HP),114 DEF_MOD("tpu0", 304, R8A7742_CLK_CP),115 DEF_MOD("mmcif1", 305, R8A7742_CLK_MMC1),116 DEF_MOD("scif2", 310, R8A7742_CLK_P),117 DEF_MOD("sdhi3", 311, R8A7742_CLK_SD3),118 DEF_MOD("sdhi2", 312, R8A7742_CLK_SD2),119 DEF_MOD("sdhi1", 313, R8A7742_CLK_SD1),120 DEF_MOD("sdhi0", 314, R8A7742_CLK_SD0),121 DEF_MOD("mmcif0", 315, R8A7742_CLK_MMC0),122 DEF_MOD("iic0", 318, R8A7742_CLK_HP),123 DEF_MOD("pciec", 319, R8A7742_CLK_MP),124 DEF_MOD("iic1", 323, R8A7742_CLK_HP),125 DEF_MOD("usb3.0", 328, R8A7742_CLK_MP),126 DEF_MOD("cmt1", 329, R8A7742_CLK_R),127 DEF_MOD("usbhs-dmac0", 330, R8A7742_CLK_HP),128 DEF_MOD("usbhs-dmac1", 331, R8A7742_CLK_HP),129 DEF_MOD("rwdt", 402, R8A7742_CLK_R),130 DEF_MOD("irqc", 407, R8A7742_CLK_CP),131 DEF_MOD("intc-sys", 408, R8A7742_CLK_ZS),132 DEF_MOD("audio-dmac1", 501, R8A7742_CLK_HP),133 DEF_MOD("audio-dmac0", 502, R8A7742_CLK_HP),134 DEF_MOD("thermal", 522, CLK_EXTAL),135 DEF_MOD("pwm", 523, R8A7742_CLK_P),136 DEF_MOD("usb-ehci", 703, R8A7742_CLK_MP),137 DEF_MOD("usbhs", 704, R8A7742_CLK_HP),138 DEF_MOD("hscif1", 716, R8A7742_CLK_ZS),139 DEF_MOD("hscif0", 717, R8A7742_CLK_ZS),140 DEF_MOD("scif1", 720, R8A7742_CLK_P),141 DEF_MOD("scif0", 721, R8A7742_CLK_P),142 DEF_MOD("du2", 722, R8A7742_CLK_ZX),143 DEF_MOD("du1", 723, R8A7742_CLK_ZX),144 DEF_MOD("du0", 724, R8A7742_CLK_ZX),145 DEF_MOD("lvds1", 725, R8A7742_CLK_ZX),146 DEF_MOD("lvds0", 726, R8A7742_CLK_ZX),147 DEF_MOD("r-gp2d", 807, R8A7742_CLK_ZX),148 DEF_MOD("vin3", 808, R8A7742_CLK_ZG),149 DEF_MOD("vin2", 809, R8A7742_CLK_ZG),150 DEF_MOD("vin1", 810, R8A7742_CLK_ZG),151 DEF_MOD("vin0", 811, R8A7742_CLK_ZG),152 DEF_MOD("etheravb", 812, R8A7742_CLK_HP),153 DEF_MOD("ether", 813, R8A7742_CLK_P),154 DEF_MOD("sata1", 814, R8A7742_CLK_ZS),155 DEF_MOD("sata0", 815, R8A7742_CLK_ZS),156 DEF_MOD("imr-x2-1", 820, R8A7742_CLK_ZG),157 DEF_MOD("imr-x2-0", 821, R8A7742_CLK_HP),158 DEF_MOD("imr-lsx2-1", 822, R8A7742_CLK_P),159 DEF_MOD("imr-lsx2-0", 823, R8A7742_CLK_ZS),160 DEF_MOD("gpio5", 907, R8A7742_CLK_CP),161 DEF_MOD("gpio4", 908, R8A7742_CLK_CP),162 DEF_MOD("gpio3", 909, R8A7742_CLK_CP),163 DEF_MOD("gpio2", 910, R8A7742_CLK_CP),164 DEF_MOD("gpio1", 911, R8A7742_CLK_CP),165 DEF_MOD("gpio0", 912, R8A7742_CLK_CP),166 DEF_MOD("can1", 915, R8A7742_CLK_P),167 DEF_MOD("can0", 916, R8A7742_CLK_P),168 DEF_MOD("qspi_mod", 917, R8A7742_CLK_QSPI),169 DEF_MOD("iicdvfs", 926, R8A7742_CLK_CP),170 DEF_MOD("i2c3", 928, R8A7742_CLK_HP),171 DEF_MOD("i2c2", 929, R8A7742_CLK_HP),172 DEF_MOD("i2c1", 930, R8A7742_CLK_HP),173 DEF_MOD("i2c0", 931, R8A7742_CLK_HP),174 DEF_MOD("ssi-all", 1005, R8A7742_CLK_P),175 DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)),176 DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)),177 DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)),178 DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)),179 DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)),180 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)),181 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)),182 DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)),183 DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)),184 DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)),185 DEF_MOD("scu-all", 1017, R8A7742_CLK_P),186 DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)),187 DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)),188 DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)),189 DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)),190 DEF_MOD("scu-src9", 1022, MOD_CLK_ID(1017)),191 DEF_MOD("scu-src8", 1023, MOD_CLK_ID(1017)),192 DEF_MOD("scu-src7", 1024, MOD_CLK_ID(1017)),193 DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)),194 DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)),195 DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)),196 DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)),197 DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)),198 DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)),199 DEF_MOD("scu-src0", 1031, MOD_CLK_ID(1017)),200};201 202static const unsigned int r8a7742_crit_mod_clks[] __initconst = {203 MOD_CLK_ID(402), /* RWDT */204 MOD_CLK_ID(408), /* INTC-SYS (GIC) */205};206 207/*208 * CPG Clock Data209 */210 211/*212 * MD EXTAL PLL0 PLL1 PLL3213 * 14 13 19 (MHz) *1 *1214 *---------------------------------------------------215 * 0 0 0 15 x172/2 x208/2 x106216 * 0 0 1 15 x172/2 x208/2 x88217 * 0 1 0 20 x130/2 x156/2 x80218 * 0 1 1 20 x130/2 x156/2 x66219 * 1 0 0 26 / 2 x200/2 x240/2 x122220 * 1 0 1 26 / 2 x200/2 x240/2 x102221 * 1 1 0 30 / 2 x172/2 x208/2 x106222 * 1 1 1 30 / 2 x172/2 x208/2 x88223 *224 * *1 : Table 7.5a indicates VCO output (PLLx = VCO/2)225 */226#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 12) | \227 (((md) & BIT(13)) >> 12) | \228 (((md) & BIT(19)) >> 19))229 230static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[8] __initconst = {231 /* EXTAL div PLL1 mult PLL3 mult */232 { 1, 208, 106, },233 { 1, 208, 88, },234 { 1, 156, 80, },235 { 1, 156, 66, },236 { 2, 240, 122, },237 { 2, 240, 102, },238 { 2, 208, 106, },239 { 2, 208, 88, },240};241 242static int __init r8a7742_cpg_mssr_init(struct device *dev)243{244 const struct rcar_gen2_cpg_pll_config *cpg_pll_config;245 u32 cpg_mode;246 int error;247 248 error = rcar_rst_read_mode_pins(&cpg_mode);249 if (error)250 return error;251 252 cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];253 254 return rcar_gen2_cpg_init(cpg_pll_config, 2, cpg_mode);255}256 257const struct cpg_mssr_info r8a7742_cpg_mssr_info __initconst = {258 /* Core Clocks */259 .core_clks = r8a7742_core_clks,260 .num_core_clks = ARRAY_SIZE(r8a7742_core_clks),261 .last_dt_core_clk = LAST_DT_CORE_CLK,262 .num_total_core_clks = MOD_CLK_BASE,263 264 /* Module Clocks */265 .mod_clks = r8a7742_mod_clks,266 .num_mod_clks = ARRAY_SIZE(r8a7742_mod_clks),267 .num_hw_mod_clks = 12 * 32,268 269 /* Critical Module Clocks */270 .crit_mod_clks = r8a7742_crit_mod_clks,271 .num_crit_mod_clks = ARRAY_SIZE(r8a7742_crit_mod_clks),272 273 /* Callbacks */274 .init = r8a7742_cpg_mssr_init,275 .cpg_clk_register = rcar_gen2_cpg_clk_register,276};277