1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * r8a77470 Clock Pulse Generator / Module Standby and Software Reset 4 * 5 * Copyright (C) 2018 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/r8a77470-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 = R8A77470_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 r8a77470_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", R8A77470_CLK_SDH, CLK_TYPE_GEN2_SDH, CLK_PLL1), 52 DEF_BASE("sd0", R8A77470_CLK_SD0, CLK_TYPE_GEN2_SD0, CLK_PLL1), 53 DEF_BASE("sd1", R8A77470_CLK_SD1, CLK_TYPE_GEN2_SD1, CLK_PLL1), 54 DEF_BASE("qspi", R8A77470_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2), 55 DEF_BASE("rcan", R8A77470_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL), 56 57 DEF_FIXED("z2", R8A77470_CLK_Z2, CLK_PLL0, 1, 1), 58 DEF_FIXED("zx", R8A77470_CLK_ZX, CLK_PLL1, 3, 1), 59 DEF_FIXED("zs", R8A77470_CLK_ZS, CLK_PLL1, 6, 1), 60 DEF_FIXED("hp", R8A77470_CLK_HP, CLK_PLL1, 12, 1), 61 DEF_FIXED("b", R8A77470_CLK_B, CLK_PLL1, 12, 1), 62 DEF_FIXED("lb", R8A77470_CLK_LB, CLK_PLL1, 24, 1), 63 DEF_FIXED("p", R8A77470_CLK_P, CLK_PLL1, 24, 1), 64 DEF_FIXED("cl", R8A77470_CLK_CL, CLK_PLL1, 48, 1), 65 DEF_FIXED("cp", R8A77470_CLK_CP, CLK_PLL1, 48, 1), 66 DEF_FIXED("m2", R8A77470_CLK_M2, CLK_PLL1, 8, 1), 67 DEF_FIXED("zb3", R8A77470_CLK_ZB3, CLK_PLL3, 4, 1), 68 DEF_FIXED("mp", R8A77470_CLK_MP, CLK_PLL1_DIV2, 15, 1), 69 DEF_FIXED("cpex", R8A77470_CLK_CPEX, CLK_EXTAL, 2, 1), 70 DEF_FIXED("r", R8A77470_CLK_R, CLK_PLL1, 49152, 1), 71 DEF_FIXED("osc", R8A77470_CLK_OSC, CLK_PLL1, 12288, 1), 72 73 DEF_DIV6P1("sd2", R8A77470_CLK_SD2, CLK_PLL1_DIV2, 0x078), 74 }; 75 76 static const struct mssr_mod_clk r8a77470_mod_clks[] __initconst = { 77 DEF_MOD("msiof0", 0, R8A77470_CLK_MP), 78 DEF_MOD("vcp0", 101, R8A77470_CLK_ZS), 79 DEF_MOD("vpc0", 103, R8A77470_CLK_ZS), 80 DEF_MOD("tmu1", 111, R8A77470_CLK_P), 81 DEF_MOD("3dg", 112, R8A77470_CLK_ZS), 82 DEF_MOD("2d-dmac", 115, R8A77470_CLK_ZS), 83 DEF_MOD("fdp1-0", 119, R8A77470_CLK_ZS), 84 DEF_MOD("tmu3", 121, R8A77470_CLK_P), 85 DEF_MOD("tmu2", 122, R8A77470_CLK_P), 86 DEF_MOD("cmt0", 124, R8A77470_CLK_R), 87 DEF_MOD("vsp1du0", 128, R8A77470_CLK_ZS), 88 DEF_MOD("vsp1-sy", 131, R8A77470_CLK_ZS), 89 DEF_MOD("msiof2", 205, R8A77470_CLK_MP), 90 DEF_MOD("msiof1", 208, R8A77470_CLK_MP), 91 DEF_MOD("sys-dmac1", 218, R8A77470_CLK_ZS), 92 DEF_MOD("sys-dmac0", 219, R8A77470_CLK_ZS), 93 DEF_MOD("sdhi2", 312, R8A77470_CLK_SD2), 94 DEF_MOD("sdhi1", 313, R8A77470_CLK_SD1), 95 DEF_MOD("sdhi0", 314, R8A77470_CLK_SD0), 96 DEF_MOD("usbhs-dmac0-ch1", 326, R8A77470_CLK_HP), 97 DEF_MOD("usbhs-dmac1-ch1", 327, R8A77470_CLK_HP), 98 DEF_MOD("cmt1", 329, R8A77470_CLK_R), 99 DEF_MOD("usbhs-dmac0-ch0", 330, R8A77470_CLK_HP), 100 DEF_MOD("usbhs-dmac1-ch0", 331, R8A77470_CLK_HP), 101 DEF_MOD("rwdt", 402, R8A77470_CLK_R), 102 DEF_MOD("irqc", 407, R8A77470_CLK_CP), 103 DEF_MOD("intc-sys", 408, R8A77470_CLK_ZS), 104 DEF_MOD("audio-dmac0", 502, R8A77470_CLK_HP), 105 DEF_MOD("pwm", 523, R8A77470_CLK_P), 106 DEF_MOD("usb-ehci-0", 703, R8A77470_CLK_MP), 107 DEF_MOD("usbhs-0", 704, R8A77470_CLK_HP), 108 DEF_MOD("usb-ehci-1", 705, R8A77470_CLK_MP), 109 DEF_MOD("usbhs-1", 706, R8A77470_CLK_HP), 110 DEF_MOD("hscif2", 713, R8A77470_CLK_ZS), 111 DEF_MOD("scif5", 714, R8A77470_CLK_P), 112 DEF_MOD("scif4", 715, R8A77470_CLK_P), 113 DEF_MOD("hscif1", 716, R8A77470_CLK_ZS), 114 DEF_MOD("hscif0", 717, R8A77470_CLK_ZS), 115 DEF_MOD("scif3", 718, R8A77470_CLK_P), 116 DEF_MOD("scif2", 719, R8A77470_CLK_P), 117 DEF_MOD("scif1", 720, R8A77470_CLK_P), 118 DEF_MOD("scif0", 721, R8A77470_CLK_P), 119 DEF_MOD("du1", 723, R8A77470_CLK_ZX), 120 DEF_MOD("du0", 724, R8A77470_CLK_ZX), 121 DEF_MOD("ipmmu-sgx", 800, R8A77470_CLK_ZX), 122 DEF_MOD("etheravb", 812, R8A77470_CLK_HP), 123 DEF_MOD("ether", 813, R8A77470_CLK_P), 124 DEF_MOD("gpio5", 907, R8A77470_CLK_CP), 125 DEF_MOD("gpio4", 908, R8A77470_CLK_CP), 126 DEF_MOD("gpio3", 909, R8A77470_CLK_CP), 127 DEF_MOD("gpio2", 910, R8A77470_CLK_CP), 128 DEF_MOD("gpio1", 911, R8A77470_CLK_CP), 129 DEF_MOD("gpio0", 912, R8A77470_CLK_CP), 130 DEF_MOD("can1", 915, R8A77470_CLK_P), 131 DEF_MOD("can0", 916, R8A77470_CLK_P), 132 DEF_MOD("qspi_mod-1", 917, R8A77470_CLK_QSPI), 133 DEF_MOD("qspi_mod-0", 918, R8A77470_CLK_QSPI), 134 DEF_MOD("i2c4", 927, R8A77470_CLK_HP), 135 DEF_MOD("i2c3", 928, R8A77470_CLK_HP), 136 DEF_MOD("i2c2", 929, R8A77470_CLK_HP), 137 DEF_MOD("i2c1", 930, R8A77470_CLK_HP), 138 DEF_MOD("i2c0", 931, R8A77470_CLK_HP), 139 DEF_MOD("ssi-all", 1005, R8A77470_CLK_P), 140 DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)), 141 DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)), 142 DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)), 143 DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)), 144 DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)), 145 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)), 146 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)), 147 DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)), 148 DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)), 149 DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)), 150 DEF_MOD("scu-all", 1017, R8A77470_CLK_P), 151 DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)), 152 DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)), 153 DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)), 154 DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)), 155 DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)), 156 DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)), 157 DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)), 158 DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)), 159 DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)), 160 DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)), 161 }; 162 163 static const unsigned int r8a77470_crit_mod_clks[] __initconst = { 164 MOD_CLK_ID(402), /* RWDT */ 165 MOD_CLK_ID(408), /* INTC-SYS (GIC) */ 166 }; 167 168 /* 169 * CPG Clock Data 170 */ 171 172 /* 173 * MD EXTAL PLL0 PLL1 PLL3 174 * 14 13 (MHz) *1 *2 175 *--------------------------------------------------- 176 * 0 0 20 x80 x78 x50 177 * 0 1 26 x60 x60 x56 178 * 1 0 Prohibited setting 179 * 1 1 30 x52 x52 x50 180 * 181 * *1 : Table 7.4 indicates VCO output (PLL0 = VCO) 182 * *2 : Table 7.4 indicates VCO output (PLL1 = VCO) 183 */ 184 #define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 13) | \ 185 (((md) & BIT(13)) >> 13)) 186 187 static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[4] __initconst = { 188 /* EXTAL div PLL1 mult x2 PLL3 mult */ 189 { 1, 156, 50, }, 190 { 1, 120, 56, }, 191 { /* Invalid*/ }, 192 { 1, 104, 50, }, 193 }; 194 195 static int __init r8a77470_cpg_mssr_init(struct device *dev) 196 { 197 const struct rcar_gen2_cpg_pll_config *cpg_pll_config; 198 u32 cpg_mode; 199 int error; 200 201 error = rcar_rst_read_mode_pins(&cpg_mode); 202 if (error) 203 return error; 204 205 cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; 206 207 return rcar_gen2_cpg_init(cpg_pll_config, 2, cpg_mode); 208 } 209 210 const struct cpg_mssr_info r8a77470_cpg_mssr_info __initconst = { 211 /* Core Clocks */ 212 .core_clks = r8a77470_core_clks, 213 .num_core_clks = ARRAY_SIZE(r8a77470_core_clks), 214 .last_dt_core_clk = LAST_DT_CORE_CLK, 215 .num_total_core_clks = MOD_CLK_BASE, 216 217 /* Module Clocks */ 218 .mod_clks = r8a77470_mod_clks, 219 .num_mod_clks = ARRAY_SIZE(r8a77470_mod_clks), 220 .num_hw_mod_clks = 12 * 32, 221 222 /* Critical Module Clocks */ 223 .crit_mod_clks = r8a77470_crit_mod_clks, 224 .num_crit_mod_clks = ARRAY_SIZE(r8a77470_crit_mod_clks), 225 226 /* Callbacks */ 227 .init = r8a77470_cpg_mssr_init, 228 .cpg_clk_register = rcar_gen2_cpg_clk_register, 229 }; 230