1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * r8a77990 Clock Pulse Generator / Module Standby and Software Reset 4 * 5 * Copyright (C) 2018-2019 Renesas Electronics Corp. 6 * 7 * Based on r8a7795-cpg-mssr.c 8 * 9 * Copyright (C) 2015 Glider bvba 10 * Copyright (C) 2015 Renesas Electronics Corp. 11 */ 12 13 #include <linux/device.h> 14 #include <linux/init.h> 15 #include <linux/kernel.h> 16 #include <linux/soc/renesas/rcar-rst.h> 17 18 #include <dt-bindings/clock/r8a77990-cpg-mssr.h> 19 20 #include "renesas-cpg-mssr.h" 21 #include "rcar-gen3-cpg.h" 22 23 enum clk_ids { 24 /* Core Clock Outputs exported to DT */ 25 LAST_DT_CORE_CLK = R8A77990_CLK_CPEX, 26 27 /* External Input Clocks */ 28 CLK_EXTAL, 29 30 /* Internal Core Clocks */ 31 CLK_MAIN, 32 CLK_PLL0, 33 CLK_PLL1, 34 CLK_PLL3, 35 CLK_PLL0D4, 36 CLK_PLL0D6, 37 CLK_PLL0D8, 38 CLK_PLL0D20, 39 CLK_PLL0D24, 40 CLK_PLL1D2, 41 CLK_PE, 42 CLK_S0, 43 CLK_S1, 44 CLK_S2, 45 CLK_S3, 46 CLK_SDSRC, 47 CLK_RPCSRC, 48 CLK_RINT, 49 CLK_OCO, 50 51 /* Module Clocks */ 52 MOD_CLK_BASE 53 }; 54 55 static const struct cpg_core_clk r8a77990_core_clks[] __initconst = { 56 /* External Clock Inputs */ 57 DEF_INPUT("extal", CLK_EXTAL), 58 59 /* Internal Core Clocks */ 60 DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL), 61 DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN), 62 DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN), 63 64 DEF_FIXED(".pll0", CLK_PLL0, CLK_MAIN, 1, 100), 65 DEF_FIXED(".pll0d4", CLK_PLL0D4, CLK_PLL0, 4, 1), 66 DEF_FIXED(".pll0d6", CLK_PLL0D6, CLK_PLL0, 6, 1), 67 DEF_FIXED(".pll0d8", CLK_PLL0D8, CLK_PLL0, 8, 1), 68 DEF_FIXED(".pll0d20", CLK_PLL0D20, CLK_PLL0, 20, 1), 69 DEF_FIXED(".pll0d24", CLK_PLL0D24, CLK_PLL0, 24, 1), 70 DEF_FIXED(".pll1d2", CLK_PLL1D2, CLK_PLL1, 2, 1), 71 DEF_FIXED(".pe", CLK_PE, CLK_PLL0D20, 1, 1), 72 DEF_FIXED(".s0", CLK_S0, CLK_PLL1, 2, 1), 73 DEF_FIXED(".s1", CLK_S1, CLK_PLL1, 3, 1), 74 DEF_FIXED(".s2", CLK_S2, CLK_PLL1, 4, 1), 75 DEF_FIXED(".s3", CLK_S3, CLK_PLL1, 6, 1), 76 DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1, 2, 1), 77 78 DEF_FIXED_RPCSRC_E3(".rpcsrc", CLK_RPCSRC, CLK_PLL0, CLK_PLL1), 79 80 DEF_DIV6_RO(".r", CLK_RINT, CLK_EXTAL, CPG_RCKCR, 32), 81 82 DEF_RATE(".oco", CLK_OCO, 8 * 1000 * 1000), 83 84 /* Core Clock Outputs */ 85 DEF_FIXED("za2", R8A77990_CLK_ZA2, CLK_PLL0D24, 1, 1), 86 DEF_FIXED("za8", R8A77990_CLK_ZA8, CLK_PLL0D8, 1, 1), 87 DEF_GEN3_Z("z2", R8A77990_CLK_Z2, CLK_TYPE_GEN3_Z, CLK_PLL0, 4, 8), 88 DEF_FIXED("ztr", R8A77990_CLK_ZTR, CLK_PLL1, 6, 1), 89 DEF_FIXED("zt", R8A77990_CLK_ZT, CLK_PLL1, 4, 1), 90 DEF_FIXED("zx", R8A77990_CLK_ZX, CLK_PLL1, 3, 1), 91 DEF_FIXED("s0d1", R8A77990_CLK_S0D1, CLK_S0, 1, 1), 92 DEF_FIXED("s0d3", R8A77990_CLK_S0D3, CLK_S0, 3, 1), 93 DEF_FIXED("s0d6", R8A77990_CLK_S0D6, CLK_S0, 6, 1), 94 DEF_FIXED("s0d12", R8A77990_CLK_S0D12, CLK_S0, 12, 1), 95 DEF_FIXED("s0d24", R8A77990_CLK_S0D24, CLK_S0, 24, 1), 96 DEF_FIXED("s1d1", R8A77990_CLK_S1D1, CLK_S1, 1, 1), 97 DEF_FIXED("s1d2", R8A77990_CLK_S1D2, CLK_S1, 2, 1), 98 DEF_FIXED("s1d4", R8A77990_CLK_S1D4, CLK_S1, 4, 1), 99 DEF_FIXED("s2d1", R8A77990_CLK_S2D1, CLK_S2, 1, 1), 100 DEF_FIXED("s2d2", R8A77990_CLK_S2D2, CLK_S2, 2, 1), 101 DEF_FIXED("s2d4", R8A77990_CLK_S2D4, CLK_S2, 4, 1), 102 DEF_FIXED("s3d1", R8A77990_CLK_S3D1, CLK_S3, 1, 1), 103 DEF_FIXED("s3d2", R8A77990_CLK_S3D2, CLK_S3, 2, 1), 104 DEF_FIXED("s3d4", R8A77990_CLK_S3D4, CLK_S3, 4, 1), 105 106 DEF_GEN3_SDH("sd0h", R8A77990_CLK_SD0H, CLK_SDSRC, 0x0074), 107 DEF_GEN3_SDH("sd1h", R8A77990_CLK_SD1H, CLK_SDSRC, 0x0078), 108 DEF_GEN3_SDH("sd3h", R8A77990_CLK_SD3H, CLK_SDSRC, 0x026c), 109 DEF_GEN3_SD("sd0", R8A77990_CLK_SD0, R8A77990_CLK_SD0H, 0x0074), 110 DEF_GEN3_SD("sd1", R8A77990_CLK_SD1, R8A77990_CLK_SD1H, 0x0078), 111 DEF_GEN3_SD("sd3", R8A77990_CLK_SD3, R8A77990_CLK_SD3H, 0x026c), 112 113 DEF_BASE("rpc", R8A77990_CLK_RPC, CLK_TYPE_GEN3_RPC, CLK_RPCSRC), 114 DEF_BASE("rpcd2", R8A77990_CLK_RPCD2, CLK_TYPE_GEN3_RPCD2, R8A77990_CLK_RPC), 115 116 DEF_FIXED("cl", R8A77990_CLK_CL, CLK_PLL1, 48, 1), 117 DEF_FIXED("cr", R8A77990_CLK_CR, CLK_PLL1D2, 2, 1), 118 DEF_FIXED("cp", R8A77990_CLK_CP, CLK_EXTAL, 2, 1), 119 DEF_FIXED("cpex", R8A77990_CLK_CPEX, CLK_EXTAL, 4, 1), 120 121 DEF_DIV6_RO("osc", R8A77990_CLK_OSC, CLK_EXTAL, CPG_RCKCR, 8), 122 123 DEF_GEN3_PE("s0d6c", R8A77990_CLK_S0D6C, CLK_S0, 6, CLK_PE, 2), 124 DEF_GEN3_PE("s3d1c", R8A77990_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1), 125 DEF_GEN3_PE("s3d2c", R8A77990_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2), 126 DEF_GEN3_PE("s3d4c", R8A77990_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4), 127 128 DEF_DIV6P1("canfd", R8A77990_CLK_CANFD, CLK_PLL0D6, 0x244), 129 DEF_DIV6P1("csi0", R8A77990_CLK_CSI0, CLK_PLL1D2, 0x00c), 130 DEF_DIV6P1("mso", R8A77990_CLK_MSO, CLK_PLL1D2, 0x014), 131 132 DEF_GEN3_RCKSEL("r", R8A77990_CLK_R, CLK_RINT, 1, CLK_OCO, 61 * 4), 133 }; 134 135 static const struct mssr_mod_clk r8a77990_mod_clks[] __initconst = { 136 DEF_MOD("tmu4", 121, R8A77990_CLK_S0D6C), 137 DEF_MOD("tmu3", 122, R8A77990_CLK_S3D2C), 138 DEF_MOD("tmu2", 123, R8A77990_CLK_S3D2C), 139 DEF_MOD("tmu1", 124, R8A77990_CLK_S3D2C), 140 DEF_MOD("tmu0", 125, R8A77990_CLK_CP), 141 DEF_MOD("scif5", 202, R8A77990_CLK_S3D4C), 142 DEF_MOD("scif4", 203, R8A77990_CLK_S3D4C), 143 DEF_MOD("scif3", 204, R8A77990_CLK_S3D4C), 144 DEF_MOD("scif1", 206, R8A77990_CLK_S3D4C), 145 DEF_MOD("scif0", 207, R8A77990_CLK_S3D4C), 146 DEF_MOD("msiof3", 208, R8A77990_CLK_MSO), 147 DEF_MOD("msiof2", 209, R8A77990_CLK_MSO), 148 DEF_MOD("msiof1", 210, R8A77990_CLK_MSO), 149 DEF_MOD("msiof0", 211, R8A77990_CLK_MSO), 150 DEF_MOD("sys-dmac2", 217, R8A77990_CLK_S3D1), 151 DEF_MOD("sys-dmac1", 218, R8A77990_CLK_S3D1), 152 DEF_MOD("sys-dmac0", 219, R8A77990_CLK_S3D1), 153 DEF_MOD("sceg-pub", 229, R8A77990_CLK_CR), 154 155 DEF_MOD("cmt3", 300, R8A77990_CLK_R), 156 DEF_MOD("cmt2", 301, R8A77990_CLK_R), 157 DEF_MOD("cmt1", 302, R8A77990_CLK_R), 158 DEF_MOD("cmt0", 303, R8A77990_CLK_R), 159 DEF_MOD("scif2", 310, R8A77990_CLK_S3D4C), 160 DEF_MOD("sdif3", 311, R8A77990_CLK_SD3), 161 DEF_MOD("sdif1", 313, R8A77990_CLK_SD1), 162 DEF_MOD("sdif0", 314, R8A77990_CLK_SD0), 163 DEF_MOD("pcie0", 319, R8A77990_CLK_S3D1), 164 DEF_MOD("usb3-if0", 328, R8A77990_CLK_S3D1), 165 DEF_MOD("usb-dmac0", 330, R8A77990_CLK_S3D1), 166 DEF_MOD("usb-dmac1", 331, R8A77990_CLK_S3D1), 167 168 DEF_MOD("rwdt", 402, R8A77990_CLK_R), 169 DEF_MOD("intc-ex", 407, R8A77990_CLK_CP), 170 DEF_MOD("intc-ap", 408, R8A77990_CLK_S0D3), 171 172 DEF_MOD("audmac0", 502, R8A77990_CLK_S1D2), 173 DEF_MOD("drif31", 508, R8A77990_CLK_S3D2), 174 DEF_MOD("drif30", 509, R8A77990_CLK_S3D2), 175 DEF_MOD("drif21", 510, R8A77990_CLK_S3D2), 176 DEF_MOD("drif20", 511, R8A77990_CLK_S3D2), 177 DEF_MOD("drif11", 512, R8A77990_CLK_S3D2), 178 DEF_MOD("drif10", 513, R8A77990_CLK_S3D2), 179 DEF_MOD("drif01", 514, R8A77990_CLK_S3D2), 180 DEF_MOD("drif00", 515, R8A77990_CLK_S3D2), 181 DEF_MOD("hscif4", 516, R8A77990_CLK_S3D1C), 182 DEF_MOD("hscif3", 517, R8A77990_CLK_S3D1C), 183 DEF_MOD("hscif2", 518, R8A77990_CLK_S3D1C), 184 DEF_MOD("hscif1", 519, R8A77990_CLK_S3D1C), 185 DEF_MOD("hscif0", 520, R8A77990_CLK_S3D1C), 186 DEF_MOD("thermal", 522, R8A77990_CLK_CP), 187 DEF_MOD("pwm", 523, R8A77990_CLK_S3D4C), 188 189 DEF_MOD("fcpvd1", 602, R8A77990_CLK_S1D2), 190 DEF_MOD("fcpvd0", 603, R8A77990_CLK_S1D2), 191 DEF_MOD("fcpvb0", 607, R8A77990_CLK_S0D1), 192 DEF_MOD("fcpvi0", 611, R8A77990_CLK_S0D1), 193 DEF_MOD("fcpf0", 615, R8A77990_CLK_S0D1), 194 DEF_MOD("fcpcs", 619, R8A77990_CLK_S0D1), 195 DEF_MOD("vspd1", 622, R8A77990_CLK_S1D2), 196 DEF_MOD("vspd0", 623, R8A77990_CLK_S1D2), 197 DEF_MOD("vspb", 626, R8A77990_CLK_S0D1), 198 DEF_MOD("vspi0", 631, R8A77990_CLK_S0D1), 199 200 DEF_MOD("ehci0", 703, R8A77990_CLK_S3D2), 201 DEF_MOD("hsusb", 704, R8A77990_CLK_S3D2), 202 DEF_MOD("cmm1", 710, R8A77990_CLK_S1D1), 203 DEF_MOD("cmm0", 711, R8A77990_CLK_S1D1), 204 DEF_MOD("csi40", 716, R8A77990_CLK_CSI0), 205 DEF_MOD("du1", 723, R8A77990_CLK_S1D1), 206 DEF_MOD("du0", 724, R8A77990_CLK_S1D1), 207 DEF_MOD("lvds", 727, R8A77990_CLK_S2D1), 208 209 DEF_MOD("mlp", 802, R8A77990_CLK_S2D1), 210 DEF_MOD("vin5", 806, R8A77990_CLK_S1D2), 211 DEF_MOD("vin4", 807, R8A77990_CLK_S1D2), 212 DEF_MOD("etheravb", 812, R8A77990_CLK_S3D2), 213 214 DEF_MOD("gpio6", 906, R8A77990_CLK_S3D4), 215 DEF_MOD("gpio5", 907, R8A77990_CLK_S3D4), 216 DEF_MOD("gpio4", 908, R8A77990_CLK_S3D4), 217 DEF_MOD("gpio3", 909, R8A77990_CLK_S3D4), 218 DEF_MOD("gpio2", 910, R8A77990_CLK_S3D4), 219 DEF_MOD("gpio1", 911, R8A77990_CLK_S3D4), 220 DEF_MOD("gpio0", 912, R8A77990_CLK_S3D4), 221 DEF_MOD("can-fd", 914, R8A77990_CLK_S3D2), 222 DEF_MOD("can-if1", 915, R8A77990_CLK_S3D4), 223 DEF_MOD("can-if0", 916, R8A77990_CLK_S3D4), 224 DEF_MOD("rpc-if", 917, R8A77990_CLK_RPCD2), 225 DEF_MOD("i2c6", 918, R8A77990_CLK_S3D2), 226 DEF_MOD("i2c5", 919, R8A77990_CLK_S3D2), 227 DEF_MOD("adg", 922, R8A77990_CLK_ZA2), 228 DEF_MOD("i2c-dvfs", 926, R8A77990_CLK_CP), 229 DEF_MOD("i2c4", 927, R8A77990_CLK_S3D2), 230 DEF_MOD("i2c3", 928, R8A77990_CLK_S3D2), 231 DEF_MOD("i2c2", 929, R8A77990_CLK_S3D2), 232 DEF_MOD("i2c1", 930, R8A77990_CLK_S3D2), 233 DEF_MOD("i2c0", 931, R8A77990_CLK_S3D2), 234 235 DEF_MOD("i2c7", 1003, R8A77990_CLK_S3D2), 236 DEF_MOD("ssi-all", 1005, R8A77990_CLK_S3D4), 237 DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)), 238 DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)), 239 DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)), 240 DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)), 241 DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)), 242 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)), 243 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)), 244 DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)), 245 DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)), 246 DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)), 247 DEF_MOD("dab", 1016, R8A77990_CLK_S3D1), 248 DEF_MOD("scu-all", 1017, R8A77990_CLK_S3D4), 249 DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)), 250 DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)), 251 DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)), 252 DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)), 253 DEF_MOD("scu-src9", 1022, MOD_CLK_ID(1017)), 254 DEF_MOD("scu-src8", 1023, MOD_CLK_ID(1017)), 255 DEF_MOD("scu-src7", 1024, MOD_CLK_ID(1017)), 256 DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)), 257 DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)), 258 DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)), 259 DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)), 260 DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)), 261 DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)), 262 DEF_MOD("scu-src0", 1031, MOD_CLK_ID(1017)), 263 }; 264 265 static const unsigned int r8a77990_crit_mod_clks[] __initconst = { 266 MOD_CLK_ID(402), /* RWDT */ 267 MOD_CLK_ID(408), /* INTC-AP (GIC) */ 268 }; 269 270 /* 271 * CPG Clock Data 272 */ 273 274 /* 275 * MD19 EXTAL (MHz) PLL0 PLL1 PLL3 276 *-------------------------------------------------------------------- 277 * 0 48 x 1 x100/1 x100/3 x100/3 278 * 1 48 x 1 x100/1 x100/3 x58/3 279 */ 280 #define CPG_PLL_CONFIG_INDEX(md) (((md) & BIT(19)) >> 19) 281 282 static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] __initconst = { 283 /* EXTAL div PLL1 mult/div PLL3 mult/div */ 284 { 1, 100, 3, 100, 3, }, 285 { 1, 100, 3, 58, 3, }, 286 }; 287 288 static int __init r8a77990_cpg_mssr_init(struct device *dev) 289 { 290 const struct rcar_gen3_cpg_pll_config *cpg_pll_config; 291 u32 cpg_mode; 292 int error; 293 294 error = rcar_rst_read_mode_pins(&cpg_mode); 295 if (error) 296 return error; 297 298 cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; 299 300 return rcar_gen3_cpg_init(cpg_pll_config, 0, cpg_mode); 301 } 302 303 const struct cpg_mssr_info r8a77990_cpg_mssr_info __initconst = { 304 /* Core Clocks */ 305 .core_clks = r8a77990_core_clks, 306 .num_core_clks = ARRAY_SIZE(r8a77990_core_clks), 307 .last_dt_core_clk = LAST_DT_CORE_CLK, 308 .num_total_core_clks = MOD_CLK_BASE, 309 310 /* Module Clocks */ 311 .mod_clks = r8a77990_mod_clks, 312 .num_mod_clks = ARRAY_SIZE(r8a77990_mod_clks), 313 .num_hw_mod_clks = 12 * 32, 314 315 /* Critical Module Clocks */ 316 .crit_mod_clks = r8a77990_crit_mod_clks, 317 .num_crit_mod_clks = ARRAY_SIZE(r8a77990_crit_mod_clks), 318 319 /* Callbacks */ 320 .init = r8a77990_cpg_mssr_init, 321 .cpg_clk_register = rcar_gen3_cpg_clk_register, 322 }; 323