1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * r8a7745 Clock Pulse Generator / Module Standby and Software Reset 4 * 5 * Copyright (C) 2016 Cogent Embedded Inc. 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/r8a7745-cpg-mssr.h> 14 15 #include "renesas-cpg-mssr.h" 16 #include "rcar-gen2-cpg.h" 17 18 enum clk_ids { 19 /* Core Clock Outputs exported to DT */ 20 LAST_DT_CORE_CLK = R8A7745_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_BASE 35 }; 36 37 static const struct cpg_core_clk r8a7745_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("sdh", R8A7745_CLK_SDH, CLK_TYPE_GEN2_SDH, CLK_PLL1), 52 DEF_BASE("sd0", R8A7745_CLK_SD0, CLK_TYPE_GEN2_SD0, CLK_PLL1), 53 DEF_BASE("qspi", R8A7745_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2), 54 DEF_BASE("rcan", R8A7745_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL), 55 56 DEF_FIXED("z2", R8A7745_CLK_Z2, CLK_PLL0, 1, 1), 57 DEF_FIXED("zg", R8A7745_CLK_ZG, CLK_PLL1, 6, 1), 58 DEF_FIXED("zx", R8A7745_CLK_ZX, CLK_PLL1, 3, 1), 59 DEF_FIXED("zs", R8A7745_CLK_ZS, CLK_PLL1, 6, 1), 60 DEF_FIXED("hp", R8A7745_CLK_HP, CLK_PLL1, 12, 1), 61 DEF_FIXED("b", R8A7745_CLK_B, CLK_PLL1, 12, 1), 62 DEF_FIXED("lb", R8A7745_CLK_LB, CLK_PLL1, 24, 1), 63 DEF_FIXED("p", R8A7745_CLK_P, CLK_PLL1, 24, 1), 64 DEF_FIXED("cl", R8A7745_CLK_CL, CLK_PLL1, 48, 1), 65 DEF_FIXED("cp", R8A7745_CLK_CP, CLK_PLL1, 48, 1), 66 DEF_FIXED("m2", R8A7745_CLK_M2, CLK_PLL1, 8, 1), 67 DEF_FIXED("zb3", R8A7745_CLK_ZB3, CLK_PLL3, 4, 1), 68 DEF_FIXED("zb3d2", R8A7745_CLK_ZB3D2, CLK_PLL3, 8, 1), 69 DEF_FIXED("ddr", R8A7745_CLK_DDR, CLK_PLL3, 8, 1), 70 DEF_FIXED("mp", R8A7745_CLK_MP, CLK_PLL1_DIV2, 15, 1), 71 DEF_FIXED("cpex", R8A7745_CLK_CPEX, CLK_EXTAL, 2, 1), 72 DEF_FIXED("r", R8A7745_CLK_R, CLK_PLL1, 49152, 1), 73 DEF_FIXED("osc", R8A7745_CLK_OSC, CLK_PLL1, 12288, 1), 74 75 DEF_DIV6P1("sd2", R8A7745_CLK_SD2, CLK_PLL1_DIV2, 0x078), 76 DEF_DIV6P1("sd3", R8A7745_CLK_SD3, CLK_PLL1_DIV2, 0x26c), 77 DEF_DIV6P1("mmc0", R8A7745_CLK_MMC0, CLK_PLL1_DIV2, 0x240), 78 }; 79 80 static const struct mssr_mod_clk r8a7745_mod_clks[] __initconst = { 81 DEF_MOD("msiof0", 0, R8A7745_CLK_MP), 82 DEF_MOD("vcp0", 101, R8A7745_CLK_ZS), 83 DEF_MOD("vpc0", 103, R8A7745_CLK_ZS), 84 DEF_MOD("tmu1", 111, R8A7745_CLK_P), 85 DEF_MOD("3dg", 112, R8A7745_CLK_ZG), 86 DEF_MOD("2d-dmac", 115, R8A7745_CLK_ZS), 87 DEF_MOD("fdp1-0", 119, R8A7745_CLK_ZS), 88 DEF_MOD("tmu3", 121, R8A7745_CLK_P), 89 DEF_MOD("tmu2", 122, R8A7745_CLK_P), 90 DEF_MOD("cmt0", 124, R8A7745_CLK_R), 91 DEF_MOD("tmu0", 125, R8A7745_CLK_CP), 92 DEF_MOD("vsp1du0", 128, R8A7745_CLK_ZS), 93 DEF_MOD("vsps", 131, R8A7745_CLK_ZS), 94 DEF_MOD("scifa2", 202, R8A7745_CLK_MP), 95 DEF_MOD("scifa1", 203, R8A7745_CLK_MP), 96 DEF_MOD("scifa0", 204, R8A7745_CLK_MP), 97 DEF_MOD("msiof2", 205, R8A7745_CLK_MP), 98 DEF_MOD("scifb0", 206, R8A7745_CLK_MP), 99 DEF_MOD("scifb1", 207, R8A7745_CLK_MP), 100 DEF_MOD("msiof1", 208, R8A7745_CLK_MP), 101 DEF_MOD("scifb2", 216, R8A7745_CLK_MP), 102 DEF_MOD("sys-dmac1", 218, R8A7745_CLK_ZS), 103 DEF_MOD("sys-dmac0", 219, R8A7745_CLK_ZS), 104 DEF_MOD("tpu0", 304, R8A7745_CLK_CP), 105 DEF_MOD("sdhi3", 311, R8A7745_CLK_SD3), 106 DEF_MOD("sdhi2", 312, R8A7745_CLK_SD2), 107 DEF_MOD("sdhi0", 314, R8A7745_CLK_SD0), 108 DEF_MOD("mmcif0", 315, R8A7745_CLK_MMC0), 109 DEF_MOD("iic0", 318, R8A7745_CLK_HP), 110 DEF_MOD("iic1", 323, R8A7745_CLK_HP), 111 DEF_MOD("cmt1", 329, R8A7745_CLK_R), 112 DEF_MOD("usbhs-dmac0", 330, R8A7745_CLK_HP), 113 DEF_MOD("usbhs-dmac1", 331, R8A7745_CLK_HP), 114 DEF_MOD("rwdt", 402, R8A7745_CLK_R), 115 DEF_MOD("irqc", 407, R8A7745_CLK_CP), 116 DEF_MOD("intc-sys", 408, R8A7745_CLK_ZS), 117 DEF_MOD("audio-dmac0", 502, R8A7745_CLK_HP), 118 DEF_MOD("pwm", 523, R8A7745_CLK_P), 119 DEF_MOD("usb-ehci", 703, R8A7745_CLK_MP), 120 DEF_MOD("usbhs", 704, R8A7745_CLK_HP), 121 DEF_MOD("hscif2", 713, R8A7745_CLK_ZS), 122 DEF_MOD("scif5", 714, R8A7745_CLK_P), 123 DEF_MOD("scif4", 715, R8A7745_CLK_P), 124 DEF_MOD("hscif1", 716, R8A7745_CLK_ZS), 125 DEF_MOD("hscif0", 717, R8A7745_CLK_ZS), 126 DEF_MOD("scif3", 718, R8A7745_CLK_P), 127 DEF_MOD("scif2", 719, R8A7745_CLK_P), 128 DEF_MOD("scif1", 720, R8A7745_CLK_P), 129 DEF_MOD("scif0", 721, R8A7745_CLK_P), 130 DEF_MOD("du1", 723, R8A7745_CLK_ZX), 131 DEF_MOD("du0", 724, R8A7745_CLK_ZX), 132 DEF_MOD("ipmmu-sgx", 800, R8A7745_CLK_ZX), 133 DEF_MOD("vin1", 810, R8A7745_CLK_ZG), 134 DEF_MOD("vin0", 811, R8A7745_CLK_ZG), 135 DEF_MOD("etheravb", 812, R8A7745_CLK_HP), 136 DEF_MOD("ether", 813, R8A7745_CLK_P), 137 DEF_MOD("gpio6", 905, R8A7745_CLK_CP), 138 DEF_MOD("gpio5", 907, R8A7745_CLK_CP), 139 DEF_MOD("gpio4", 908, R8A7745_CLK_CP), 140 DEF_MOD("gpio3", 909, R8A7745_CLK_CP), 141 DEF_MOD("gpio2", 910, R8A7745_CLK_CP), 142 DEF_MOD("gpio1", 911, R8A7745_CLK_CP), 143 DEF_MOD("gpio0", 912, R8A7745_CLK_CP), 144 DEF_MOD("can1", 915, R8A7745_CLK_P), 145 DEF_MOD("can0", 916, R8A7745_CLK_P), 146 DEF_MOD("qspi_mod", 917, R8A7745_CLK_QSPI), 147 DEF_MOD("i2c5", 925, R8A7745_CLK_HP), 148 DEF_MOD("i2c4", 927, R8A7745_CLK_HP), 149 DEF_MOD("i2c3", 928, R8A7745_CLK_HP), 150 DEF_MOD("i2c2", 929, R8A7745_CLK_HP), 151 DEF_MOD("i2c1", 930, R8A7745_CLK_HP), 152 DEF_MOD("i2c0", 931, R8A7745_CLK_HP), 153 DEF_MOD("ssi-all", 1005, R8A7745_CLK_P), 154 DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)), 155 DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)), 156 DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)), 157 DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)), 158 DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)), 159 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)), 160 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)), 161 DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)), 162 DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)), 163 DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)), 164 DEF_MOD("scu-all", 1017, R8A7745_CLK_P), 165 DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)), 166 DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)), 167 DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)), 168 DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)), 169 DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)), 170 DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)), 171 DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)), 172 DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)), 173 DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)), 174 DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)), 175 DEF_MOD("scifa3", 1106, R8A7745_CLK_MP), 176 DEF_MOD("scifa4", 1107, R8A7745_CLK_MP), 177 DEF_MOD("scifa5", 1108, R8A7745_CLK_MP), 178 }; 179 180 static const unsigned int r8a7745_crit_mod_clks[] __initconst = { 181 MOD_CLK_ID(402), /* RWDT */ 182 MOD_CLK_ID(408), /* INTC-SYS (GIC) */ 183 }; 184 185 /* 186 * CPG Clock Data 187 */ 188 189 /* 190 * MD EXTAL PLL0 PLL1 PLL3 191 * 14 13 19 (MHz) *1 *2 192 *--------------------------------------------------- 193 * 0 0 1 15 x200/3 x208/2 x88 194 * 0 1 1 20 x150/3 x156/2 x66 195 * 1 0 1 26 / 2 x230/3 x240/2 x102 196 * 1 1 1 30 / 2 x200/3 x208/2 x88 197 * 198 * *1 : Table 7.5b indicates VCO output (PLL0 = VCO/3) 199 * *2 : Table 7.5b indicates VCO output (PLL1 = VCO/2) 200 */ 201 #define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 13) | \ 202 (((md) & BIT(13)) >> 13)) 203 204 static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[8] __initconst = { 205 /* EXTAL div PLL1 mult PLL3 mult PLL0 mult */ 206 { 1, 208, 88, 200 }, 207 { 1, 156, 66, 150 }, 208 { 2, 240, 102, 230 }, 209 { 2, 208, 88, 200 }, 210 }; 211 212 static int __init r8a7745_cpg_mssr_init(struct device *dev) 213 { 214 const struct rcar_gen2_cpg_pll_config *cpg_pll_config; 215 u32 cpg_mode; 216 int error; 217 218 error = rcar_rst_read_mode_pins(&cpg_mode); 219 if (error) 220 return error; 221 222 cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; 223 224 return rcar_gen2_cpg_init(cpg_pll_config, 3, cpg_mode); 225 } 226 227 const struct cpg_mssr_info r8a7745_cpg_mssr_info __initconst = { 228 /* Core Clocks */ 229 .core_clks = r8a7745_core_clks, 230 .num_core_clks = ARRAY_SIZE(r8a7745_core_clks), 231 .last_dt_core_clk = LAST_DT_CORE_CLK, 232 .num_total_core_clks = MOD_CLK_BASE, 233 234 /* Module Clocks */ 235 .mod_clks = r8a7745_mod_clks, 236 .num_mod_clks = ARRAY_SIZE(r8a7745_mod_clks), 237 .num_hw_mod_clks = 12 * 32, 238 239 /* Critical Module Clocks */ 240 .crit_mod_clks = r8a7745_crit_mod_clks, 241 .num_crit_mod_clks = ARRAY_SIZE(r8a7745_crit_mod_clks), 242 243 /* Callbacks */ 244 .init = r8a7745_cpg_mssr_init, 245 .cpg_clk_register = rcar_gen2_cpg_clk_register, 246 }; 247