r8a7792-cpg-mssr.c (7937B)
1// SPDX-License-Identifier: GPL-2.0 2/* 3 * r8a7792 Clock Pulse Generator / Module Standby and Software Reset 4 * 5 * Copyright (C) 2017 Glider bvba 6 * 7 * Based on clk-rcar-gen2.c 8 * 9 * Copyright (C) 2013 Ideas On Board SPRL 10 */ 11 12#include <linux/device.h> 13#include <linux/init.h> 14#include <linux/kernel.h> 15#include <linux/soc/renesas/rcar-rst.h> 16 17#include <dt-bindings/clock/r8a7792-cpg-mssr.h> 18 19#include "renesas-cpg-mssr.h" 20#include "rcar-gen2-cpg.h" 21 22enum clk_ids { 23 /* Core Clock Outputs exported to DT */ 24 LAST_DT_CORE_CLK = R8A7792_CLK_OSC, 25 26 /* External Input Clocks */ 27 CLK_EXTAL, 28 29 /* Internal Core Clocks */ 30 CLK_MAIN, 31 CLK_PLL0, 32 CLK_PLL1, 33 CLK_PLL3, 34 CLK_PLL1_DIV2, 35 36 /* Module Clocks */ 37 MOD_CLK_BASE 38}; 39 40static const struct cpg_core_clk r8a7792_core_clks[] __initconst = { 41 /* External Clock Inputs */ 42 DEF_INPUT("extal", CLK_EXTAL), 43 44 /* Internal Core Clocks */ 45 DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN2_MAIN, CLK_EXTAL), 46 DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN2_PLL0, CLK_MAIN), 47 DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN2_PLL1, CLK_MAIN), 48 DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN2_PLL3, CLK_MAIN), 49 50 DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), 51 52 /* Core Clock Outputs */ 53 DEF_BASE("qspi", R8A7792_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2), 54 55 DEF_FIXED("z", R8A7792_CLK_Z, CLK_PLL0, 1, 1), 56 DEF_FIXED("zg", R8A7792_CLK_ZG, CLK_PLL1, 5, 1), 57 DEF_FIXED("zx", R8A7792_CLK_ZX, CLK_PLL1, 3, 1), 58 DEF_FIXED("zs", R8A7792_CLK_ZS, CLK_PLL1, 6, 1), 59 DEF_FIXED("hp", R8A7792_CLK_HP, CLK_PLL1, 12, 1), 60 DEF_FIXED("i", R8A7792_CLK_I, CLK_PLL1, 3, 1), 61 DEF_FIXED("b", R8A7792_CLK_B, CLK_PLL1, 12, 1), 62 DEF_FIXED("lb", R8A7792_CLK_LB, CLK_PLL1, 24, 1), 63 DEF_FIXED("p", R8A7792_CLK_P, CLK_PLL1, 24, 1), 64 DEF_FIXED("cl", R8A7792_CLK_CL, CLK_PLL1, 48, 1), 65 DEF_FIXED("m2", R8A7792_CLK_M2, CLK_PLL1, 8, 1), 66 DEF_FIXED("imp", R8A7792_CLK_IMP, CLK_PLL1, 4, 1), 67 DEF_FIXED("zb3", R8A7792_CLK_ZB3, CLK_PLL3, 4, 1), 68 DEF_FIXED("zb3d2", R8A7792_CLK_ZB3D2, CLK_PLL3, 8, 1), 69 DEF_FIXED("ddr", R8A7792_CLK_DDR, CLK_PLL3, 8, 1), 70 DEF_FIXED("sd", R8A7792_CLK_SD, CLK_PLL1_DIV2, 8, 1), 71 DEF_FIXED("mp", R8A7792_CLK_MP, CLK_PLL1_DIV2, 15, 1), 72 DEF_FIXED("cp", R8A7792_CLK_CP, CLK_PLL1, 48, 1), 73 DEF_FIXED("cpex", R8A7792_CLK_CPEX, CLK_EXTAL, 2, 1), 74 DEF_FIXED("rcan", R8A7792_CLK_RCAN, CLK_PLL1_DIV2, 49, 1), 75 DEF_FIXED("r", R8A7792_CLK_R, CLK_PLL1, 49152, 1), 76 DEF_FIXED("osc", R8A7792_CLK_OSC, CLK_PLL1, 12288, 1), 77}; 78 79static const struct mssr_mod_clk r8a7792_mod_clks[] __initconst = { 80 DEF_MOD("msiof0", 0, R8A7792_CLK_MP), 81 DEF_MOD("jpu", 106, R8A7792_CLK_M2), 82 DEF_MOD("tmu1", 111, R8A7792_CLK_P), 83 DEF_MOD("3dg", 112, R8A7792_CLK_ZG), 84 DEF_MOD("2d-dmac", 115, R8A7792_CLK_ZS), 85 DEF_MOD("tmu3", 121, R8A7792_CLK_P), 86 DEF_MOD("tmu2", 122, R8A7792_CLK_P), 87 DEF_MOD("cmt0", 124, R8A7792_CLK_R), 88 DEF_MOD("tmu0", 125, R8A7792_CLK_CP), 89 DEF_MOD("vsp1du1", 127, R8A7792_CLK_ZS), 90 DEF_MOD("vsp1du0", 128, R8A7792_CLK_ZS), 91 DEF_MOD("vsps", 131, R8A7792_CLK_ZS), 92 DEF_MOD("msiof1", 208, R8A7792_CLK_MP), 93 DEF_MOD("sys-dmac1", 218, R8A7792_CLK_ZS), 94 DEF_MOD("sys-dmac0", 219, R8A7792_CLK_ZS), 95 DEF_MOD("tpu0", 304, R8A7792_CLK_CP), 96 DEF_MOD("sdhi0", 314, R8A7792_CLK_SD), 97 DEF_MOD("cmt1", 329, R8A7792_CLK_R), 98 DEF_MOD("rwdt", 402, R8A7792_CLK_R), 99 DEF_MOD("irqc", 407, R8A7792_CLK_CP), 100 DEF_MOD("intc-sys", 408, R8A7792_CLK_ZS), 101 DEF_MOD("audio-dmac0", 502, R8A7792_CLK_HP), 102 DEF_MOD("thermal", 522, CLK_EXTAL), 103 DEF_MOD("pwm", 523, R8A7792_CLK_P), 104 DEF_MOD("hscif1", 716, R8A7792_CLK_ZS), 105 DEF_MOD("hscif0", 717, R8A7792_CLK_ZS), 106 DEF_MOD("scif3", 718, R8A7792_CLK_P), 107 DEF_MOD("scif2", 719, R8A7792_CLK_P), 108 DEF_MOD("scif1", 720, R8A7792_CLK_P), 109 DEF_MOD("scif0", 721, R8A7792_CLK_P), 110 DEF_MOD("du1", 723, R8A7792_CLK_ZX), 111 DEF_MOD("du0", 724, R8A7792_CLK_ZX), 112 DEF_MOD("vin5", 804, R8A7792_CLK_ZG), 113 DEF_MOD("vin4", 805, R8A7792_CLK_ZG), 114 DEF_MOD("vin3", 808, R8A7792_CLK_ZG), 115 DEF_MOD("vin2", 809, R8A7792_CLK_ZG), 116 DEF_MOD("vin1", 810, R8A7792_CLK_ZG), 117 DEF_MOD("vin0", 811, R8A7792_CLK_ZG), 118 DEF_MOD("etheravb", 812, R8A7792_CLK_HP), 119 DEF_MOD("imr-lx3", 821, R8A7792_CLK_ZG), 120 DEF_MOD("imr-lsx3-1", 822, R8A7792_CLK_ZG), 121 DEF_MOD("imr-lsx3-0", 823, R8A7792_CLK_ZG), 122 DEF_MOD("imr-lsx3-5", 825, R8A7792_CLK_ZG), 123 DEF_MOD("imr-lsx3-4", 826, R8A7792_CLK_ZG), 124 DEF_MOD("imr-lsx3-3", 827, R8A7792_CLK_ZG), 125 DEF_MOD("imr-lsx3-2", 828, R8A7792_CLK_ZG), 126 DEF_MOD("gyro-adc", 901, R8A7792_CLK_P), 127 DEF_MOD("gpio7", 904, R8A7792_CLK_CP), 128 DEF_MOD("gpio6", 905, R8A7792_CLK_CP), 129 DEF_MOD("gpio5", 907, R8A7792_CLK_CP), 130 DEF_MOD("gpio4", 908, R8A7792_CLK_CP), 131 DEF_MOD("gpio3", 909, R8A7792_CLK_CP), 132 DEF_MOD("gpio2", 910, R8A7792_CLK_CP), 133 DEF_MOD("gpio1", 911, R8A7792_CLK_CP), 134 DEF_MOD("gpio0", 912, R8A7792_CLK_CP), 135 DEF_MOD("gpio11", 913, R8A7792_CLK_CP), 136 DEF_MOD("gpio10", 914, R8A7792_CLK_CP), 137 DEF_MOD("can1", 915, R8A7792_CLK_P), 138 DEF_MOD("can0", 916, R8A7792_CLK_P), 139 DEF_MOD("qspi_mod", 917, R8A7792_CLK_QSPI), 140 DEF_MOD("gpio9", 919, R8A7792_CLK_CP), 141 DEF_MOD("gpio8", 921, R8A7792_CLK_CP), 142 DEF_MOD("i2c5", 925, R8A7792_CLK_HP), 143 DEF_MOD("iicdvfs", 926, R8A7792_CLK_CP), 144 DEF_MOD("i2c4", 927, R8A7792_CLK_HP), 145 DEF_MOD("i2c3", 928, R8A7792_CLK_HP), 146 DEF_MOD("i2c2", 929, R8A7792_CLK_HP), 147 DEF_MOD("i2c1", 930, R8A7792_CLK_HP), 148 DEF_MOD("i2c0", 931, R8A7792_CLK_HP), 149 DEF_MOD("ssi-all", 1005, R8A7792_CLK_P), 150 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)), 151 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)), 152}; 153 154static const unsigned int r8a7792_crit_mod_clks[] __initconst = { 155 MOD_CLK_ID(402), /* RWDT */ 156 MOD_CLK_ID(408), /* INTC-SYS (GIC) */ 157}; 158 159/* 160 * CPG Clock Data 161 */ 162 163/* 164 * MD EXTAL PLL0 PLL1 PLL3 165 * 14 13 19 (MHz) *1 *2 166 *--------------------------------------------------- 167 * 0 0 0 15 x200/3 x208/2 x106 168 * 0 0 1 15 x200/3 x208/2 x88 169 * 0 1 0 20 x150/3 x156/2 x80 170 * 0 1 1 20 x150/3 x156/2 x66 171 * 1 0 0 26 / 2 x230/3 x240/2 x122 172 * 1 0 1 26 / 2 x230/3 x240/2 x102 173 * 1 1 0 30 / 2 x200/3 x208/2 x106 174 * 1 1 1 30 / 2 x200/3 x208/2 x88 175 * 176 * *1 : Table 7.5b indicates VCO output (PLL0 = VCO/3) 177 * *2 : Table 7.5b indicates VCO output (PLL1 = VCO/2) 178 */ 179#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 12) | \ 180 (((md) & BIT(13)) >> 12) | \ 181 (((md) & BIT(19)) >> 19)) 182static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[8] __initconst = { 183 { 1, 208, 106, 200 }, 184 { 1, 208, 88, 200 }, 185 { 1, 156, 80, 150 }, 186 { 1, 156, 66, 150 }, 187 { 2, 240, 122, 230 }, 188 { 2, 240, 102, 230 }, 189 { 2, 208, 106, 200 }, 190 { 2, 208, 88, 200 }, 191}; 192 193static int __init r8a7792_cpg_mssr_init(struct device *dev) 194{ 195 const struct rcar_gen2_cpg_pll_config *cpg_pll_config; 196 u32 cpg_mode; 197 int error; 198 199 error = rcar_rst_read_mode_pins(&cpg_mode); 200 if (error) 201 return error; 202 203 cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; 204 205 return rcar_gen2_cpg_init(cpg_pll_config, 3, cpg_mode); 206} 207 208const struct cpg_mssr_info r8a7792_cpg_mssr_info __initconst = { 209 /* Core Clocks */ 210 .core_clks = r8a7792_core_clks, 211 .num_core_clks = ARRAY_SIZE(r8a7792_core_clks), 212 .last_dt_core_clk = LAST_DT_CORE_CLK, 213 .num_total_core_clks = MOD_CLK_BASE, 214 215 /* Module Clocks */ 216 .mod_clks = r8a7792_mod_clks, 217 .num_mod_clks = ARRAY_SIZE(r8a7792_mod_clks), 218 .num_hw_mod_clks = 12 * 32, 219 220 /* Critical Module Clocks */ 221 .crit_mod_clks = r8a7792_crit_mod_clks, 222 .num_crit_mod_clks = ARRAY_SIZE(r8a7792_crit_mod_clks), 223 224 /* Callbacks */ 225 .init = r8a7792_cpg_mssr_init, 226 .cpg_clk_register = rcar_gen2_cpg_clk_register, 227};