1 /* 2 * r8a7791 Clock Pulse Generator / Module Standby and Software Reset 3 * 4 * Copyright (C) 2015-2017 Glider bvba 5 * 6 * Based on clk-rcar-gen2.c 7 * 8 * Copyright (C) 2013 Ideas On Board SPRL 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; version 2 of the License. 13 */ 14 15 #include <linux/device.h> 16 #include <linux/init.h> 17 #include <linux/kernel.h> 18 #include <linux/of.h> 19 #include <linux/soc/renesas/rcar-rst.h> 20 21 #include <dt-bindings/clock/r8a7791-cpg-mssr.h> 22 23 #include "renesas-cpg-mssr.h" 24 #include "rcar-gen2-cpg.h" 25 26 enum clk_ids { 27 /* Core Clock Outputs exported to DT */ 28 LAST_DT_CORE_CLK = R8A7791_CLK_OSC, 29 30 /* External Input Clocks */ 31 CLK_EXTAL, 32 CLK_USB_EXTAL, 33 34 /* Internal Core Clocks */ 35 CLK_MAIN, 36 CLK_PLL0, 37 CLK_PLL1, 38 CLK_PLL3, 39 CLK_PLL1_DIV2, 40 41 /* Module Clocks */ 42 MOD_CLK_BASE 43 }; 44 45 static struct cpg_core_clk r8a7791_core_clks[] __initdata = { 46 /* External Clock Inputs */ 47 DEF_INPUT("extal", CLK_EXTAL), 48 DEF_INPUT("usb_extal", CLK_USB_EXTAL), 49 50 /* Internal Core Clocks */ 51 DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN2_MAIN, CLK_EXTAL), 52 DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN2_PLL0, CLK_MAIN), 53 DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN2_PLL1, CLK_MAIN), 54 DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN2_PLL3, CLK_MAIN), 55 56 DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), 57 58 /* Core Clock Outputs */ 59 DEF_BASE("z", R8A7791_CLK_Z, CLK_TYPE_GEN2_Z, CLK_PLL0), 60 DEF_BASE("lb", R8A7791_CLK_LB, CLK_TYPE_GEN2_LB, CLK_PLL1), 61 DEF_BASE("adsp", R8A7791_CLK_ADSP, CLK_TYPE_GEN2_ADSP, CLK_PLL1), 62 DEF_BASE("sdh", R8A7791_CLK_SDH, CLK_TYPE_GEN2_SDH, CLK_PLL1), 63 DEF_BASE("sd0", R8A7791_CLK_SD0, CLK_TYPE_GEN2_SD0, CLK_PLL1), 64 DEF_BASE("qspi", R8A7791_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2), 65 DEF_BASE("rcan", R8A7791_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL), 66 67 DEF_FIXED("zg", R8A7791_CLK_ZG, CLK_PLL1, 3, 1), 68 DEF_FIXED("zx", R8A7791_CLK_ZX, CLK_PLL1, 3, 1), 69 DEF_FIXED("zs", R8A7791_CLK_ZS, CLK_PLL1, 6, 1), 70 DEF_FIXED("hp", R8A7791_CLK_HP, CLK_PLL1, 12, 1), 71 DEF_FIXED("i", R8A7791_CLK_I, CLK_PLL1, 2, 1), 72 DEF_FIXED("b", R8A7791_CLK_B, CLK_PLL1, 12, 1), 73 DEF_FIXED("p", R8A7791_CLK_P, CLK_PLL1, 24, 1), 74 DEF_FIXED("cl", R8A7791_CLK_CL, CLK_PLL1, 48, 1), 75 DEF_FIXED("m2", R8A7791_CLK_M2, CLK_PLL1, 8, 1), 76 DEF_FIXED("zb3", R8A7791_CLK_ZB3, CLK_PLL3, 4, 1), 77 DEF_FIXED("zb3d2", R8A7791_CLK_ZB3D2, CLK_PLL3, 8, 1), 78 DEF_FIXED("ddr", R8A7791_CLK_DDR, CLK_PLL3, 8, 1), 79 DEF_FIXED("mp", R8A7791_CLK_MP, CLK_PLL1_DIV2, 15, 1), 80 DEF_FIXED("cp", R8A7791_CLK_CP, CLK_EXTAL, 2, 1), 81 DEF_FIXED("r", R8A7791_CLK_R, CLK_PLL1, 49152, 1), 82 DEF_FIXED("osc", R8A7791_CLK_OSC, CLK_PLL1, 12288, 1), 83 84 DEF_DIV6P1("sd2", R8A7791_CLK_SD2, CLK_PLL1_DIV2, 0x078), 85 DEF_DIV6P1("sd3", R8A7791_CLK_SD3, CLK_PLL1_DIV2, 0x26c), 86 DEF_DIV6P1("mmc0", R8A7791_CLK_MMC0, CLK_PLL1_DIV2, 0x240), 87 DEF_DIV6P1("ssp", R8A7791_CLK_SSP, CLK_PLL1_DIV2, 0x248), 88 DEF_DIV6P1("ssprs", R8A7791_CLK_SSPRS, CLK_PLL1_DIV2, 0x24c), 89 }; 90 91 static const struct mssr_mod_clk r8a7791_mod_clks[] __initconst = { 92 DEF_MOD("msiof0", 0, R8A7791_CLK_MP), 93 DEF_MOD("vcp0", 101, R8A7791_CLK_ZS), 94 DEF_MOD("vpc0", 103, R8A7791_CLK_ZS), 95 DEF_MOD("jpu", 106, R8A7791_CLK_M2), 96 DEF_MOD("ssp1", 109, R8A7791_CLK_ZS), 97 DEF_MOD("tmu1", 111, R8A7791_CLK_P), 98 DEF_MOD("3dg", 112, R8A7791_CLK_ZG), 99 DEF_MOD("2d-dmac", 115, R8A7791_CLK_ZS), 100 DEF_MOD("fdp1-1", 118, R8A7791_CLK_ZS), 101 DEF_MOD("fdp1-0", 119, R8A7791_CLK_ZS), 102 DEF_MOD("tmu3", 121, R8A7791_CLK_P), 103 DEF_MOD("tmu2", 122, R8A7791_CLK_P), 104 DEF_MOD("cmt0", 124, R8A7791_CLK_R), 105 DEF_MOD("tmu0", 125, R8A7791_CLK_CP), 106 DEF_MOD("vsp1du1", 127, R8A7791_CLK_ZS), 107 DEF_MOD("vsp1du0", 128, R8A7791_CLK_ZS), 108 DEF_MOD("vsp1-sy", 131, R8A7791_CLK_ZS), 109 DEF_MOD("scifa2", 202, R8A7791_CLK_MP), 110 DEF_MOD("scifa1", 203, R8A7791_CLK_MP), 111 DEF_MOD("scifa0", 204, R8A7791_CLK_MP), 112 DEF_MOD("msiof2", 205, R8A7791_CLK_MP), 113 DEF_MOD("scifb0", 206, R8A7791_CLK_MP), 114 DEF_MOD("scifb1", 207, R8A7791_CLK_MP), 115 DEF_MOD("msiof1", 208, R8A7791_CLK_MP), 116 DEF_MOD("scifb2", 216, R8A7791_CLK_MP), 117 DEF_MOD("sys-dmac1", 218, R8A7791_CLK_ZS), 118 DEF_MOD("sys-dmac0", 219, R8A7791_CLK_ZS), 119 DEF_MOD("tpu0", 304, R8A7791_CLK_CP), 120 DEF_MOD("sdhi3", 311, R8A7791_CLK_SD3), 121 DEF_MOD("sdhi2", 312, R8A7791_CLK_SD2), 122 DEF_MOD("sdhi0", 314, R8A7791_CLK_SD0), 123 DEF_MOD("mmcif0", 315, R8A7791_CLK_MMC0), 124 DEF_MOD("iic0", 318, R8A7791_CLK_HP), 125 DEF_MOD("pciec", 319, R8A7791_CLK_MP), 126 DEF_MOD("iic1", 323, R8A7791_CLK_HP), 127 DEF_MOD("usb3.0", 328, R8A7791_CLK_MP), 128 DEF_MOD("cmt1", 329, R8A7791_CLK_R), 129 DEF_MOD("usbhs-dmac0", 330, R8A7791_CLK_HP), 130 DEF_MOD("usbhs-dmac1", 331, R8A7791_CLK_HP), 131 DEF_MOD("irqc", 407, R8A7791_CLK_CP), 132 DEF_MOD("intc-sys", 408, R8A7791_CLK_ZS), 133 DEF_MOD("audio-dmac1", 501, R8A7791_CLK_HP), 134 DEF_MOD("audio-dmac0", 502, R8A7791_CLK_HP), 135 DEF_MOD("adsp_mod", 506, R8A7791_CLK_ADSP), 136 DEF_MOD("thermal", 522, CLK_EXTAL), 137 DEF_MOD("pwm", 523, R8A7791_CLK_P), 138 DEF_MOD("usb-ehci", 703, R8A7791_CLK_MP), 139 DEF_MOD("usbhs", 704, R8A7791_CLK_HP), 140 DEF_MOD("hscif2", 713, R8A7791_CLK_ZS), 141 DEF_MOD("scif5", 714, R8A7791_CLK_P), 142 DEF_MOD("scif4", 715, R8A7791_CLK_P), 143 DEF_MOD("hscif1", 716, R8A7791_CLK_ZS), 144 DEF_MOD("hscif0", 717, R8A7791_CLK_ZS), 145 DEF_MOD("scif3", 718, R8A7791_CLK_P), 146 DEF_MOD("scif2", 719, R8A7791_CLK_P), 147 DEF_MOD("scif1", 720, R8A7791_CLK_P), 148 DEF_MOD("scif0", 721, R8A7791_CLK_P), 149 DEF_MOD("du1", 723, R8A7791_CLK_ZX), 150 DEF_MOD("du0", 724, R8A7791_CLK_ZX), 151 DEF_MOD("lvds0", 726, R8A7791_CLK_ZX), 152 DEF_MOD("ipmmu-sgx", 800, R8A7791_CLK_ZX), 153 DEF_MOD("mlb", 802, R8A7791_CLK_HP), 154 DEF_MOD("vin2", 809, R8A7791_CLK_ZG), 155 DEF_MOD("vin1", 810, R8A7791_CLK_ZG), 156 DEF_MOD("vin0", 811, R8A7791_CLK_ZG), 157 DEF_MOD("etheravb", 812, R8A7791_CLK_HP), 158 DEF_MOD("ether", 813, R8A7791_CLK_P), 159 DEF_MOD("sata1", 814, R8A7791_CLK_ZS), 160 DEF_MOD("sata0", 815, R8A7791_CLK_ZS), 161 DEF_MOD("gyro-adc", 901, R8A7791_CLK_P), 162 DEF_MOD("gpio7", 904, R8A7791_CLK_CP), 163 DEF_MOD("gpio6", 905, R8A7791_CLK_CP), 164 DEF_MOD("gpio5", 907, R8A7791_CLK_CP), 165 DEF_MOD("gpio4", 908, R8A7791_CLK_CP), 166 DEF_MOD("gpio3", 909, R8A7791_CLK_CP), 167 DEF_MOD("gpio2", 910, R8A7791_CLK_CP), 168 DEF_MOD("gpio1", 911, R8A7791_CLK_CP), 169 DEF_MOD("gpio0", 912, R8A7791_CLK_CP), 170 DEF_MOD("can1", 915, R8A7791_CLK_P), 171 DEF_MOD("can0", 916, R8A7791_CLK_P), 172 DEF_MOD("qspi_mod", 917, R8A7791_CLK_QSPI), 173 DEF_MOD("i2c5", 925, R8A7791_CLK_HP), 174 DEF_MOD("iicdvfs", 926, R8A7791_CLK_CP), 175 DEF_MOD("i2c4", 927, R8A7791_CLK_HP), 176 DEF_MOD("i2c3", 928, R8A7791_CLK_HP), 177 DEF_MOD("i2c2", 929, R8A7791_CLK_HP), 178 DEF_MOD("i2c1", 930, R8A7791_CLK_HP), 179 DEF_MOD("i2c0", 931, R8A7791_CLK_HP), 180 DEF_MOD("ssi-all", 1005, R8A7791_CLK_P), 181 DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)), 182 DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)), 183 DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)), 184 DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)), 185 DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)), 186 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)), 187 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)), 188 DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)), 189 DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)), 190 DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)), 191 DEF_MOD("scu-all", 1017, R8A7791_CLK_P), 192 DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)), 193 DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)), 194 DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)), 195 DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)), 196 DEF_MOD("scu-src9", 1022, MOD_CLK_ID(1017)), 197 DEF_MOD("scu-src8", 1023, MOD_CLK_ID(1017)), 198 DEF_MOD("scu-src7", 1024, MOD_CLK_ID(1017)), 199 DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)), 200 DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)), 201 DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)), 202 DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)), 203 DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)), 204 DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)), 205 DEF_MOD("scu-src0", 1031, MOD_CLK_ID(1017)), 206 DEF_MOD("scifa3", 1106, R8A7791_CLK_MP), 207 DEF_MOD("scifa4", 1107, R8A7791_CLK_MP), 208 DEF_MOD("scifa5", 1108, R8A7791_CLK_MP), 209 }; 210 211 static const unsigned int r8a7791_crit_mod_clks[] __initconst = { 212 MOD_CLK_ID(408), /* INTC-SYS (GIC) */ 213 }; 214 215 /* 216 * CPG Clock Data 217 */ 218 219 /* 220 * MD EXTAL PLL0 PLL1 PLL3 221 * 14 13 19 (MHz) *1 *1 222 *--------------------------------------------------- 223 * 0 0 0 15 x172/2 x208/2 x106 224 * 0 0 1 15 x172/2 x208/2 x88 225 * 0 1 0 20 x130/2 x156/2 x80 226 * 0 1 1 20 x130/2 x156/2 x66 227 * 1 0 0 26 / 2 x200/2 x240/2 x122 228 * 1 0 1 26 / 2 x200/2 x240/2 x102 229 * 1 1 0 30 / 2 x172/2 x208/2 x106 230 * 1 1 1 30 / 2 x172/2 x208/2 x88 231 * 232 * *1 : Table 7.5a indicates VCO output (PLLx = VCO/2) 233 */ 234 #define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 12) | \ 235 (((md) & BIT(13)) >> 12) | \ 236 (((md) & BIT(19)) >> 19)) 237 static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[8] __initconst = { 238 { 1, 208, 106 }, { 1, 208, 88 }, { 1, 156, 80 }, { 1, 156, 66 }, 239 { 2, 240, 122 }, { 2, 240, 102 }, { 2, 208, 106 }, { 2, 208, 88 }, 240 }; 241 242 static int __init r8a7791_cpg_mssr_init(struct device *dev) 243 { 244 const struct rcar_gen2_cpg_pll_config *cpg_pll_config; 245 struct device_node *np = dev->of_node; 246 unsigned int i; 247 u32 cpg_mode; 248 int error; 249 250 error = rcar_rst_read_mode_pins(&cpg_mode); 251 if (error) 252 return error; 253 254 cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; 255 256 if (of_device_is_compatible(np, "renesas,r8a7793-cpg-mssr")) { 257 /* R-Car M2-N uses a 1/5 divider for ZG */ 258 for (i = 0; i < ARRAY_SIZE(r8a7791_core_clks); i++) 259 if (r8a7791_core_clks[i].id == R8A7791_CLK_ZG) { 260 r8a7791_core_clks[i].div = 5; 261 break; 262 } 263 } 264 return rcar_gen2_cpg_init(cpg_pll_config, 2, cpg_mode); 265 } 266 267 const struct cpg_mssr_info r8a7791_cpg_mssr_info __initconst = { 268 /* Core Clocks */ 269 .core_clks = r8a7791_core_clks, 270 .num_core_clks = ARRAY_SIZE(r8a7791_core_clks), 271 .last_dt_core_clk = LAST_DT_CORE_CLK, 272 .num_total_core_clks = MOD_CLK_BASE, 273 274 /* Module Clocks */ 275 .mod_clks = r8a7791_mod_clks, 276 .num_mod_clks = ARRAY_SIZE(r8a7791_mod_clks), 277 .num_hw_mod_clks = 12 * 32, 278 279 /* Critical Module Clocks */ 280 .crit_mod_clks = r8a7791_crit_mod_clks, 281 .num_crit_mod_clks = ARRAY_SIZE(r8a7791_crit_mod_clks), 282 283 /* Callbacks */ 284 .init = r8a7791_cpg_mssr_init, 285 .cpg_clk_register = rcar_gen2_cpg_clk_register, 286 }; 287