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| 1 | +// SPDX-License-Identifier: GPL-2.0 |
| 2 | +/* |
| 3 | + * r8a779h0 Clock Pulse Generator / Module Standby and Software Reset |
| 4 | + * |
| 5 | + * Copyright (C) 2023 Renesas Electronics Corp. |
| 6 | + * |
| 7 | + * Based on r8a779g0-cpg-mssr.c |
| 8 | + */ |
| 9 | + |
| 10 | +#include <linux/bitfield.h> |
| 11 | +#include <linux/clk.h> |
| 12 | +#include <linux/clk-provider.h> |
| 13 | +#include <linux/device.h> |
| 14 | +#include <linux/err.h> |
| 15 | +#include <linux/kernel.h> |
| 16 | +#include <linux/soc/renesas/rcar-rst.h> |
| 17 | + |
| 18 | +#include <dt-bindings/clock/renesas,r8a779h0-cpg-mssr.h> |
| 19 | + |
| 20 | +#include "renesas-cpg-mssr.h" |
| 21 | +#include "rcar-gen4-cpg.h" |
| 22 | + |
| 23 | +enum clk_ids { |
| 24 | + /* Core Clock Outputs exported to DT */ |
| 25 | + LAST_DT_CORE_CLK = R8A779H0_CLK_R, |
| 26 | + |
| 27 | + /* External Input Clocks */ |
| 28 | + CLK_EXTAL, |
| 29 | + CLK_EXTALR, |
| 30 | + |
| 31 | + /* Internal Core Clocks */ |
| 32 | + CLK_MAIN, |
| 33 | + CLK_PLL1, |
| 34 | + CLK_PLL2, |
| 35 | + CLK_PLL3, |
| 36 | + CLK_PLL4, |
| 37 | + CLK_PLL5, |
| 38 | + CLK_PLL6, |
| 39 | + CLK_PLL1_DIV2, |
| 40 | + CLK_PLL2_DIV2, |
| 41 | + CLK_PLL3_DIV2, |
| 42 | + CLK_PLL4_DIV2, |
| 43 | + CLK_PLL4_DIV5, |
| 44 | + CLK_PLL5_DIV2, |
| 45 | + CLK_PLL5_DIV4, |
| 46 | + CLK_PLL6_DIV2, |
| 47 | + CLK_S0, |
| 48 | + CLK_S0_VIO, |
| 49 | + CLK_S0_VC, |
| 50 | + CLK_S0_HSC, |
| 51 | + CLK_SASYNCPER, |
| 52 | + CLK_SV_VIP, |
| 53 | + CLK_SV_IR, |
| 54 | + CLK_IMPASRC, |
| 55 | + CLK_IMPBSRC, |
| 56 | + CLK_VIOSRC, |
| 57 | + CLK_VCSRC, |
| 58 | + CLK_SDSRC, |
| 59 | + CLK_RPCSRC, |
| 60 | + CLK_OCO, |
| 61 | + |
| 62 | + /* Module Clocks */ |
| 63 | + MOD_CLK_BASE |
| 64 | +}; |
| 65 | + |
| 66 | +static const struct cpg_core_clk r8a779h0_core_clks[] = { |
| 67 | + /* External Clock Inputs */ |
| 68 | + DEF_INPUT("extal", CLK_EXTAL), |
| 69 | + DEF_INPUT("extalr", CLK_EXTALR), |
| 70 | + |
| 71 | + /* Internal Core Clocks */ |
| 72 | + DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN4_MAIN, CLK_EXTAL), |
| 73 | + DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN4_PLL1, CLK_MAIN), |
| 74 | + DEF_BASE(".pll2", CLK_PLL2, CLK_TYPE_GEN4_PLL2, CLK_MAIN), |
| 75 | + DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN4_PLL3, CLK_MAIN), |
| 76 | + DEF_BASE(".pll4", CLK_PLL4, CLK_TYPE_GEN4_PLL4, CLK_MAIN), |
| 77 | + DEF_BASE(".pll5", CLK_PLL5, CLK_TYPE_GEN4_PLL5, CLK_MAIN), |
| 78 | + DEF_BASE(".pll6", CLK_PLL6, CLK_TYPE_GEN4_PLL6, CLK_MAIN), |
| 79 | + |
| 80 | + DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), |
| 81 | + DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 2, 1), |
| 82 | + DEF_FIXED(".pll3_div2", CLK_PLL3_DIV2, CLK_PLL3, 2, 1), |
| 83 | + DEF_FIXED(".pll4_div2", CLK_PLL4_DIV2, CLK_PLL4, 2, 1), |
| 84 | + DEF_FIXED(".pll4_div5", CLK_PLL4_DIV5, CLK_PLL4, 5, 1), |
| 85 | + DEF_FIXED(".pll5_div2", CLK_PLL5_DIV2, CLK_PLL5, 2, 1), |
| 86 | + DEF_FIXED(".pll5_div4", CLK_PLL5_DIV4, CLK_PLL5_DIV2, 2, 1), |
| 87 | + DEF_FIXED(".pll6_div2", CLK_PLL6_DIV2, CLK_PLL6, 2, 1), |
| 88 | + DEF_FIXED(".s0", CLK_S0, CLK_PLL1_DIV2, 2, 1), |
| 89 | + DEF_FIXED(".s0_vio", CLK_S0_VIO, CLK_PLL1_DIV2, 2, 1), |
| 90 | + DEF_FIXED(".s0_vc", CLK_S0_VC, CLK_PLL1_DIV2, 2, 1), |
| 91 | + DEF_FIXED(".s0_hsc", CLK_S0_HSC, CLK_PLL1_DIV2, 2, 1), |
| 92 | + DEF_FIXED(".sasyncper", CLK_SASYNCPER, CLK_PLL5_DIV4, 3, 1), |
| 93 | + DEF_FIXED(".sv_vip", CLK_SV_VIP, CLK_PLL1, 5, 1), |
| 94 | + DEF_FIXED(".sv_ir", CLK_SV_IR, CLK_PLL1, 5, 1), |
| 95 | + DEF_FIXED(".impasrc", CLK_IMPASRC, CLK_PLL1_DIV2, 2, 1), |
| 96 | + DEF_FIXED(".impbsrc", CLK_IMPBSRC, CLK_PLL1, 4, 1), |
| 97 | + DEF_FIXED(".viosrc", CLK_VIOSRC, CLK_PLL1, 6, 1), |
| 98 | + DEF_FIXED(".vcsrc", CLK_VCSRC, CLK_PLL1, 6, 1), |
| 99 | + DEF_BASE(".sdsrc", CLK_SDSRC, CLK_TYPE_GEN4_SDSRC, CLK_PLL5), |
| 100 | + DEF_BASE(".rpcsrc", CLK_RPCSRC, CLK_TYPE_GEN4_RPCSRC, CLK_PLL5), |
| 101 | + DEF_RATE(".oco", CLK_OCO, 32768), |
| 102 | + |
| 103 | + /* Core Clock Outputs */ |
| 104 | + DEF_GEN4_Z("zc0", R8A779H0_CLK_ZC0, CLK_TYPE_GEN4_Z, CLK_PLL2_DIV2, 2, 0), |
| 105 | + DEF_GEN4_Z("zc1", R8A779H0_CLK_ZC1, CLK_TYPE_GEN4_Z, CLK_PLL2_DIV2, 2, 8), |
| 106 | + DEF_GEN4_Z("zc2", R8A779H0_CLK_ZC2, CLK_TYPE_GEN4_Z, CLK_PLL2_DIV2, 2, 32), |
| 107 | + DEF_GEN4_Z("zc3", R8A779H0_CLK_ZC3, CLK_TYPE_GEN4_Z, CLK_PLL2_DIV2, 2, 40), |
| 108 | + DEF_FIXED("s0d2", R8A779H0_CLK_S0D2, CLK_S0, 2, 1), |
| 109 | + DEF_FIXED("s0d3", R8A779H0_CLK_S0D3, CLK_S0, 3, 1), |
| 110 | + DEF_FIXED("s0d4", R8A779H0_CLK_S0D4, CLK_S0, 4, 1), |
| 111 | + DEF_FIXED("cl16m", R8A779H0_CLK_CL16M, CLK_S0, 48, 1), |
| 112 | + DEF_FIXED("s0d2_rt", R8A779H0_CLK_S0D2_RT, CLK_S0, 2, 1), |
| 113 | + DEF_FIXED("s0d3_rt", R8A779H0_CLK_S0D3_RT, CLK_S0, 3, 1), |
| 114 | + DEF_FIXED("s0d4_rt", R8A779H0_CLK_S0D4_RT, CLK_S0, 4, 1), |
| 115 | + DEF_FIXED("s0d6_rt", R8A779H0_CLK_S0D6_RT, CLK_S0, 6, 1), |
| 116 | + DEF_FIXED("cl16m_rt", R8A779H0_CLK_CL16M_RT, CLK_S0, 48, 1), |
| 117 | + DEF_FIXED("s0d2_per", R8A779H0_CLK_S0D2_PER, CLK_S0, 2, 1), |
| 118 | + DEF_FIXED("s0d3_per", R8A779H0_CLK_S0D3_PER, CLK_S0, 3, 1), |
| 119 | + DEF_FIXED("s0d4_per", R8A779H0_CLK_S0D4_PER, CLK_S0, 4, 1), |
| 120 | + DEF_FIXED("s0d6_per", R8A779H0_CLK_S0D6_PER, CLK_S0, 6, 1), |
| 121 | + DEF_FIXED("s0d12_per", R8A779H0_CLK_S0D12_PER, CLK_S0, 12, 1), |
| 122 | + DEF_FIXED("s0d24_per", R8A779H0_CLK_S0D24_PER, CLK_S0, 24, 1), |
| 123 | + DEF_FIXED("cl16m_per", R8A779H0_CLK_CL16M_PER, CLK_S0, 48, 1), |
| 124 | + DEF_FIXED("s0d2_mm", R8A779H0_CLK_S0D2_MM, CLK_S0, 2, 1), |
| 125 | + DEF_FIXED("s0d4_mm", R8A779H0_CLK_S0D4_MM, CLK_S0, 4, 1), |
| 126 | + DEF_FIXED("cl16m_mm", R8A779H0_CLK_CL16M_MM, CLK_S0, 48, 1), |
| 127 | + DEF_FIXED("s0d2_u3dg", R8A779H0_CLK_S0D2_U3DG, CLK_S0, 2, 1), |
| 128 | + DEF_FIXED("s0d4_u3dg", R8A779H0_CLK_S0D4_U3DG, CLK_S0, 4, 1), |
| 129 | + DEF_FIXED("s0d1_vio", R8A779H0_CLK_S0D1_VIO, CLK_S0_VIO, 1, 1), |
| 130 | + DEF_FIXED("s0d2_vio", R8A779H0_CLK_S0D2_VIO, CLK_S0_VIO, 2, 1), |
| 131 | + DEF_FIXED("s0d4_vio", R8A779H0_CLK_S0D4_VIO, CLK_S0_VIO, 4, 1), |
| 132 | + DEF_FIXED("s0d8_vio", R8A779H0_CLK_S0D8_VIO, CLK_S0_VIO, 8, 1), |
| 133 | + DEF_FIXED("s0d1_vc", R8A779H0_CLK_S0D1_VC, CLK_S0_VC, 1, 1), |
| 134 | + DEF_FIXED("s0d2_vc", R8A779H0_CLK_S0D2_VC, CLK_S0_VC, 2, 1), |
| 135 | + DEF_FIXED("s0d4_vc", R8A779H0_CLK_S0D4_VC, CLK_S0_VC, 4, 1), |
| 136 | + DEF_FIXED("s0d1_hsc", R8A779H0_CLK_S0D1_HSC, CLK_S0_HSC, 1, 1), |
| 137 | + DEF_FIXED("s0d2_hsc", R8A779H0_CLK_S0D2_HSC, CLK_S0_HSC, 2, 1), |
| 138 | + DEF_FIXED("s0d4_hsc", R8A779H0_CLK_S0D4_HSC, CLK_S0_HSC, 4, 1), |
| 139 | + DEF_FIXED("s0d8_hsc", R8A779H0_CLK_S0D8_HSC, CLK_S0_HSC, 8, 1), |
| 140 | + DEF_FIXED("cl16m_hsc", R8A779H0_CLK_CL16M_HSC, CLK_S0_HSC, 48, 1), |
| 141 | + DEF_FIXED("sasyncrt", R8A779H0_CLK_SASYNCRT, CLK_PLL5_DIV4, 48, 1), |
| 142 | + DEF_FIXED("sasyncperd1", R8A779H0_CLK_SASYNCPERD1, CLK_SASYNCPER, 1, 1), |
| 143 | + DEF_FIXED("sasyncperd2", R8A779H0_CLK_SASYNCPERD2, CLK_SASYNCPER, 2, 1), |
| 144 | + DEF_FIXED("sasyncperd4", R8A779H0_CLK_SASYNCPERD4, CLK_SASYNCPER, 4, 1), |
| 145 | + DEF_FIXED("svd1_vip", R8A779H0_CLK_SVD1_VIP, CLK_SV_VIP, 1, 1), |
| 146 | + DEF_FIXED("svd2_vip", R8A779H0_CLK_SVD2_VIP, CLK_SV_VIP, 2, 1), |
| 147 | + DEF_FIXED("svd1_ir", R8A779H0_CLK_SVD1_IR, CLK_SV_IR, 1, 1), |
| 148 | + DEF_FIXED("svd2_ir", R8A779H0_CLK_SVD2_IR, CLK_SV_IR, 2, 1), |
| 149 | + DEF_FIXED("cbfusa", R8A779H0_CLK_CBFUSA, CLK_EXTAL, 2, 1), |
| 150 | + DEF_FIXED("cpex", R8A779H0_CLK_CPEX, CLK_EXTAL, 2, 1), |
| 151 | + DEF_FIXED("cp", R8A779H0_CLK_CP, CLK_EXTAL, 2, 1), |
| 152 | + DEF_FIXED("impad1", R8A779H0_CLK_IMPAD1, CLK_IMPASRC, 1, 1), |
| 153 | + DEF_FIXED("impad4", R8A779H0_CLK_IMPAD4, CLK_IMPASRC, 4, 1), |
| 154 | + DEF_FIXED("impb", R8A779H0_CLK_IMPB, CLK_IMPBSRC, 1, 1), |
| 155 | + DEF_FIXED("viobusd1", R8A779H0_CLK_VIOBUSD1, CLK_VIOSRC, 1, 1), |
| 156 | + DEF_FIXED("viobusd2", R8A779H0_CLK_VIOBUSD2, CLK_VIOSRC, 2, 1), |
| 157 | + DEF_FIXED("vcbusd1", R8A779H0_CLK_VCBUSD1, CLK_VCSRC, 1, 1), |
| 158 | + DEF_FIXED("vcbusd2", R8A779H0_CLK_VCBUSD2, CLK_VCSRC, 2, 1), |
| 159 | + DEF_DIV6P1("canfd", R8A779H0_CLK_CANFD, CLK_PLL5_DIV4, 0x878), |
| 160 | + DEF_DIV6P1("csi", R8A779H0_CLK_CSI, CLK_PLL5_DIV4, 0x880), |
| 161 | + DEF_FIXED("dsiref", R8A779H0_CLK_DSIREF, CLK_PLL5_DIV4, 48, 1), |
| 162 | + DEF_DIV6P1("dsiext", R8A779H0_CLK_DSIEXT, CLK_PLL5_DIV4, 0x884), |
| 163 | + DEF_DIV6P1("mso", R8A779H0_CLK_MSO, CLK_PLL5_DIV4, 0x87c), |
| 164 | + |
| 165 | + DEF_GEN4_SDH("sd0h", R8A779H0_CLK_SD0H, CLK_SDSRC, 0x870), |
| 166 | + DEF_GEN4_SD("sd0", R8A779H0_CLK_SD0, R8A779H0_CLK_SD0H, 0x870), |
| 167 | + |
| 168 | + DEF_BASE("rpc", R8A779H0_CLK_RPC, CLK_TYPE_GEN4_RPC, CLK_RPCSRC), |
| 169 | + DEF_BASE("rpcd2", R8A779H0_CLK_RPCD2, CLK_TYPE_GEN4_RPCD2, R8A779H0_CLK_RPC), |
| 170 | + |
| 171 | + DEF_GEN4_OSC("osc", R8A779H0_CLK_OSC, CLK_EXTAL, 8), |
| 172 | + DEF_GEN4_MDSEL("r", R8A779H0_CLK_R, 29, CLK_EXTALR, 1, CLK_OCO, 1), |
| 173 | +}; |
| 174 | + |
| 175 | +static const struct mssr_mod_clk r8a779h0_mod_clks[] = { |
| 176 | + DEF_MOD("hscif0", 514, R8A779H0_CLK_SASYNCPERD1), |
| 177 | + DEF_MOD("hscif1", 515, R8A779H0_CLK_SASYNCPERD1), |
| 178 | + DEF_MOD("hscif2", 516, R8A779H0_CLK_SASYNCPERD1), |
| 179 | + DEF_MOD("hscif3", 517, R8A779H0_CLK_SASYNCPERD1), |
| 180 | + DEF_MOD("i2c0", 518, R8A779H0_CLK_S0D6_PER), |
| 181 | + DEF_MOD("i2c1", 519, R8A779H0_CLK_S0D6_PER), |
| 182 | + DEF_MOD("i2c2", 520, R8A779H0_CLK_S0D6_PER), |
| 183 | + DEF_MOD("i2c3", 521, R8A779H0_CLK_S0D6_PER), |
| 184 | + DEF_MOD("wdt1:wdt0", 907, R8A779H0_CLK_R), |
| 185 | + DEF_MOD("pfc0", 915, R8A779H0_CLK_CP), |
| 186 | + DEF_MOD("pfc1", 916, R8A779H0_CLK_CP), |
| 187 | + DEF_MOD("pfc2", 917, R8A779H0_CLK_CP), |
| 188 | +}; |
| 189 | + |
| 190 | +/* |
| 191 | + * CPG Clock Data |
| 192 | + */ |
| 193 | +/* |
| 194 | + * MD EXTAL PLL1 PLL2 PLL3 PLL4 PLL5 PLL6 OSC |
| 195 | + * 14 13 (MHz) |
| 196 | + * ------------------------------------------------------------------------ |
| 197 | + * 0 0 16.66 / 1 x192 x204 x192 x144 x192 x168 /16 |
| 198 | + * 0 1 20 / 1 x160 x170 x160 x120 x160 x140 /19 |
| 199 | + * 1 0 Prohibited setting |
| 200 | + * 1 1 33.33 / 2 x192 x204 x192 x144 x192 x168 /32 |
| 201 | + */ |
| 202 | +#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 13) | \ |
| 203 | + (((md) & BIT(13)) >> 13)) |
| 204 | + |
| 205 | +static const struct rcar_gen4_cpg_pll_config cpg_pll_configs[4] = { |
| 206 | + /* EXTAL div PLL1 mult/div PLL2 mult/div PLL3 mult/div PLL4 mult/div PLL5 mult/div PLL6 mult/div OSC prediv */ |
| 207 | + { 1, 192, 1, 240, 1, 192, 1, 240, 1, 192, 1, 168, 1, 16, }, |
| 208 | + { 1, 160, 1, 200, 1, 160, 1, 200, 1, 160, 1, 140, 1, 19, }, |
| 209 | + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
| 210 | + { 2, 192, 1, 240, 1, 192, 1, 240, 1, 192, 1, 168, 1, 32, }, |
| 211 | +}; |
| 212 | + |
| 213 | +static int __init r8a779h0_cpg_mssr_init(struct device *dev) |
| 214 | +{ |
| 215 | + const struct rcar_gen4_cpg_pll_config *cpg_pll_config; |
| 216 | + u32 cpg_mode; |
| 217 | + int error; |
| 218 | + |
| 219 | + error = rcar_rst_read_mode_pins(&cpg_mode); |
| 220 | + if (error) |
| 221 | + return error; |
| 222 | + |
| 223 | + cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; |
| 224 | + if (!cpg_pll_config->extal_div) { |
| 225 | + dev_err(dev, "Prohibited setting (cpg_mode=0x%x)\n", cpg_mode); |
| 226 | + return -EINVAL; |
| 227 | + } |
| 228 | + |
| 229 | + return rcar_gen4_cpg_init(cpg_pll_config, CLK_EXTALR, cpg_mode); |
| 230 | +} |
| 231 | + |
| 232 | +const struct cpg_mssr_info r8a779h0_cpg_mssr_info __initconst = { |
| 233 | + /* Core Clocks */ |
| 234 | + .core_clks = r8a779h0_core_clks, |
| 235 | + .num_core_clks = ARRAY_SIZE(r8a779h0_core_clks), |
| 236 | + .last_dt_core_clk = LAST_DT_CORE_CLK, |
| 237 | + .num_total_core_clks = MOD_CLK_BASE, |
| 238 | + |
| 239 | + /* Module Clocks */ |
| 240 | + .mod_clks = r8a779h0_mod_clks, |
| 241 | + .num_mod_clks = ARRAY_SIZE(r8a779h0_mod_clks), |
| 242 | + .num_hw_mod_clks = 30 * 32, |
| 243 | + |
| 244 | + /* Callbacks */ |
| 245 | + .init = r8a779h0_cpg_mssr_init, |
| 246 | + .cpg_clk_register = rcar_gen4_cpg_clk_register, |
| 247 | + |
| 248 | + .reg_layout = CLK_REG_LAYOUT_RCAR_GEN4, |
| 249 | +}; |
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