1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * RZ/G3S CPG driver 4 * 5 * Copyright (C) 2023 Renesas Electronics Corp. 6 */ 7 8 #include <linux/clk-provider.h> 9 #include <linux/device.h> 10 #include <linux/init.h> 11 #include <linux/kernel.h> 12 13 #include <dt-bindings/clock/r9a08g045-cpg.h> 14 15 #include "rzg2l-cpg.h" 16 17 /* RZ/G3S Specific registers. */ 18 #define G3S_CPG_PL2_DDIV (0x204) 19 #define G3S_CPG_SDHI_DDIV (0x218) 20 #define G3S_CPG_PLL_DSEL (0x240) 21 #define G3S_CPG_SDHI_DSEL (0x244) 22 #define G3S_CLKDIVSTATUS (0x280) 23 #define G3S_CLKSELSTATUS (0x284) 24 25 /* RZ/G3S Specific division configuration. */ 26 #define G3S_DIVPL2B DDIV_PACK(G3S_CPG_PL2_DDIV, 4, 3) 27 #define G3S_DIV_SDHI0 DDIV_PACK(G3S_CPG_SDHI_DDIV, 0, 1) 28 #define G3S_DIV_SDHI1 DDIV_PACK(G3S_CPG_SDHI_DDIV, 4, 1) 29 #define G3S_DIV_SDHI2 DDIV_PACK(G3S_CPG_SDHI_DDIV, 8, 1) 30 31 /* RZ/G3S Clock status configuration. */ 32 #define G3S_DIVPL1A_STS DDIV_PACK(G3S_CLKDIVSTATUS, 0, 1) 33 #define G3S_DIVPL2B_STS DDIV_PACK(G3S_CLKDIVSTATUS, 5, 1) 34 #define G3S_DIVPL3A_STS DDIV_PACK(G3S_CLKDIVSTATUS, 8, 1) 35 #define G3S_DIVPL3B_STS DDIV_PACK(G3S_CLKDIVSTATUS, 9, 1) 36 #define G3S_DIVPL3C_STS DDIV_PACK(G3S_CLKDIVSTATUS, 10, 1) 37 #define G3S_DIV_SDHI0_STS DDIV_PACK(G3S_CLKDIVSTATUS, 24, 1) 38 #define G3S_DIV_SDHI1_STS DDIV_PACK(G3S_CLKDIVSTATUS, 25, 1) 39 #define G3S_DIV_SDHI2_STS DDIV_PACK(G3S_CLKDIVSTATUS, 26, 1) 40 41 #define G3S_SEL_PLL4_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 6, 1) 42 #define G3S_SEL_SDHI0_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 16, 1) 43 #define G3S_SEL_SDHI1_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 17, 1) 44 #define G3S_SEL_SDHI2_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 18, 1) 45 46 /* RZ/G3S Specific clocks select. */ 47 #define G3S_SEL_PLL4 SEL_PLL_PACK(G3S_CPG_PLL_DSEL, 6, 1) 48 #define G3S_SEL_SDHI0 SEL_PLL_PACK(G3S_CPG_SDHI_DSEL, 0, 2) 49 #define G3S_SEL_SDHI1 SEL_PLL_PACK(G3S_CPG_SDHI_DSEL, 4, 2) 50 #define G3S_SEL_SDHI2 SEL_PLL_PACK(G3S_CPG_SDHI_DSEL, 8, 2) 51 52 /* PLL 1/4/6 configuration registers macro. */ 53 #define G3S_PLL146_CONF(clk1, clk2) ((clk1) << 22 | (clk2) << 12) 54 55 #define DEF_G3S_MUX(_name, _id, _conf, _parent_names, _mux_flags, _clk_flags) \ 56 DEF_TYPE(_name, _id, CLK_TYPE_MUX, .conf = (_conf), \ 57 .parent_names = (_parent_names), \ 58 .num_parents = ARRAY_SIZE((_parent_names)), \ 59 .mux_flags = CLK_MUX_HIWORD_MASK | (_mux_flags), \ 60 .flag = (_clk_flags)) 61 62 enum clk_ids { 63 /* Core Clock Outputs exported to DT */ 64 LAST_DT_CORE_CLK = R9A08G045_SWD, 65 66 /* External Input Clocks */ 67 CLK_EXTAL, 68 69 /* Internal Core Clocks */ 70 CLK_OSC_DIV1000, 71 CLK_PLL1, 72 CLK_PLL2, 73 CLK_PLL2_DIV2, 74 CLK_PLL2_DIV2_8, 75 CLK_PLL2_DIV6, 76 CLK_PLL3, 77 CLK_PLL3_DIV2, 78 CLK_PLL3_DIV2_4, 79 CLK_PLL3_DIV2_8, 80 CLK_PLL3_DIV6, 81 CLK_PLL4, 82 CLK_PLL6, 83 CLK_PLL6_DIV2, 84 CLK_SEL_SDHI0, 85 CLK_SEL_SDHI1, 86 CLK_SEL_SDHI2, 87 CLK_SEL_PLL4, 88 CLK_P1_DIV2, 89 CLK_P3_DIV2, 90 CLK_SD0_DIV4, 91 CLK_SD1_DIV4, 92 CLK_SD2_DIV4, 93 94 /* Module Clocks */ 95 MOD_CLK_BASE, 96 }; 97 98 /* Divider tables */ 99 static const struct clk_div_table dtable_1_2[] = { 100 { 0, 1 }, 101 { 1, 2 }, 102 { 0, 0 }, 103 }; 104 105 static const struct clk_div_table dtable_1_8[] = { 106 { 0, 1 }, 107 { 1, 2 }, 108 { 2, 4 }, 109 { 3, 8 }, 110 { 0, 0 }, 111 }; 112 113 static const struct clk_div_table dtable_1_32[] = { 114 { 0, 1 }, 115 { 1, 2 }, 116 { 2, 4 }, 117 { 3, 8 }, 118 { 4, 32 }, 119 { 0, 0 }, 120 }; 121 122 /* Mux clock names tables. */ 123 static const char * const sel_sdhi[] = { ".pll2_div2", ".pll6", ".pll2_div6" }; 124 static const char * const sel_pll4[] = { ".osc_div1000", ".pll4" }; 125 126 /* Mux clock indices tables. */ 127 static const u32 mtable_sd[] = { 0, 2, 3 }; 128 static const u32 mtable_pll4[] = { 0, 1 }; 129 130 static const struct cpg_core_clk r9a08g045_core_clks[] __initconst = { 131 /* External Clock Inputs */ 132 DEF_INPUT("extal", CLK_EXTAL), 133 134 /* Internal Core Clocks */ 135 DEF_FIXED(".osc_div1000", CLK_OSC_DIV1000, CLK_EXTAL, 1, 1000), 136 DEF_G3S_PLL(".pll1", CLK_PLL1, CLK_EXTAL, G3S_PLL146_CONF(0x4, 0x8)), 137 DEF_FIXED(".pll2", CLK_PLL2, CLK_EXTAL, 200, 3), 138 DEF_FIXED(".pll3", CLK_PLL3, CLK_EXTAL, 200, 3), 139 DEF_FIXED(".pll4", CLK_PLL4, CLK_EXTAL, 100, 3), 140 DEF_FIXED(".pll6", CLK_PLL6, CLK_EXTAL, 125, 6), 141 DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 1, 2), 142 DEF_FIXED(".pll2_div2_8", CLK_PLL2_DIV2_8, CLK_PLL2_DIV2, 1, 8), 143 DEF_FIXED(".pll2_div6", CLK_PLL2_DIV6, CLK_PLL2, 1, 6), 144 DEF_FIXED(".pll3_div2", CLK_PLL3_DIV2, CLK_PLL3, 1, 2), 145 DEF_FIXED(".pll3_div2_4", CLK_PLL3_DIV2_4, CLK_PLL3_DIV2, 1, 4), 146 DEF_FIXED(".pll3_div2_8", CLK_PLL3_DIV2_8, CLK_PLL3_DIV2, 1, 8), 147 DEF_FIXED(".pll3_div6", CLK_PLL3_DIV6, CLK_PLL3, 1, 6), 148 DEF_FIXED(".pll6_div2", CLK_PLL6_DIV2, CLK_PLL6, 1, 2), 149 DEF_SD_MUX(".sel_sd0", CLK_SEL_SDHI0, G3S_SEL_SDHI0, G3S_SEL_SDHI0_STS, sel_sdhi, 150 mtable_sd, 0, NULL), 151 DEF_SD_MUX(".sel_sd1", CLK_SEL_SDHI1, G3S_SEL_SDHI1, G3S_SEL_SDHI1_STS, sel_sdhi, 152 mtable_sd, 0, NULL), 153 DEF_SD_MUX(".sel_sd2", CLK_SEL_SDHI2, G3S_SEL_SDHI2, G3S_SEL_SDHI2_STS, sel_sdhi, 154 mtable_sd, 0, NULL), 155 DEF_SD_MUX(".sel_pll4", CLK_SEL_PLL4, G3S_SEL_PLL4, G3S_SEL_PLL4_STS, sel_pll4, 156 mtable_pll4, CLK_SET_PARENT_GATE, NULL), 157 158 /* Core output clk */ 159 DEF_G3S_DIV("I", R9A08G045_CLK_I, CLK_PLL1, DIVPL1A, G3S_DIVPL1A_STS, dtable_1_8, 160 0, 0, 0, NULL), 161 DEF_G3S_DIV("P0", R9A08G045_CLK_P0, CLK_PLL2_DIV2_8, G3S_DIVPL2B, G3S_DIVPL2B_STS, 162 dtable_1_32, 0, 0, 0, NULL), 163 DEF_G3S_DIV("SD0", R9A08G045_CLK_SD0, CLK_SEL_SDHI0, G3S_DIV_SDHI0, G3S_DIV_SDHI0_STS, 164 dtable_1_2, 800000000UL, 500000000UL, CLK_SET_RATE_PARENT, 165 rzg3s_cpg_div_clk_notifier), 166 DEF_G3S_DIV("SD1", R9A08G045_CLK_SD1, CLK_SEL_SDHI1, G3S_DIV_SDHI1, G3S_DIV_SDHI1_STS, 167 dtable_1_2, 800000000UL, 500000000UL, CLK_SET_RATE_PARENT, 168 rzg3s_cpg_div_clk_notifier), 169 DEF_G3S_DIV("SD2", R9A08G045_CLK_SD2, CLK_SEL_SDHI2, G3S_DIV_SDHI2, G3S_DIV_SDHI2_STS, 170 dtable_1_2, 800000000UL, 500000000UL, CLK_SET_RATE_PARENT, 171 rzg3s_cpg_div_clk_notifier), 172 DEF_FIXED(".sd0_div4", CLK_SD0_DIV4, R9A08G045_CLK_SD0, 1, 4), 173 DEF_FIXED(".sd1_div4", CLK_SD1_DIV4, R9A08G045_CLK_SD1, 1, 4), 174 DEF_FIXED(".sd2_div4", CLK_SD2_DIV4, R9A08G045_CLK_SD2, 1, 4), 175 DEF_FIXED("M0", R9A08G045_CLK_M0, CLK_PLL3_DIV2_4, 1, 1), 176 DEF_G3S_DIV("P1", R9A08G045_CLK_P1, CLK_PLL3_DIV2_4, DIVPL3A, G3S_DIVPL3A_STS, 177 dtable_1_32, 0, 0, 0, NULL), 178 DEF_FIXED("P1_DIV2", CLK_P1_DIV2, R9A08G045_CLK_P1, 1, 2), 179 DEF_G3S_DIV("P2", R9A08G045_CLK_P2, CLK_PLL3_DIV2_8, DIVPL3B, G3S_DIVPL3B_STS, 180 dtable_1_32, 0, 0, 0, NULL), 181 DEF_G3S_DIV("P3", R9A08G045_CLK_P3, CLK_PLL3_DIV2_4, DIVPL3C, G3S_DIVPL3C_STS, 182 dtable_1_32, 0, 0, 0, NULL), 183 DEF_FIXED("P3_DIV2", CLK_P3_DIV2, R9A08G045_CLK_P3, 1, 2), 184 DEF_FIXED("ZT", R9A08G045_CLK_ZT, CLK_PLL3_DIV2_8, 1, 1), 185 DEF_FIXED("S0", R9A08G045_CLK_S0, CLK_SEL_PLL4, 1, 2), 186 DEF_FIXED("OSC", R9A08G045_OSCCLK, CLK_EXTAL, 1, 1), 187 DEF_FIXED("OSC2", R9A08G045_OSCCLK2, CLK_EXTAL, 1, 3), 188 DEF_FIXED("HP", R9A08G045_CLK_HP, CLK_PLL6, 1, 2), 189 }; 190 191 static const struct rzg2l_mod_clk r9a08g045_mod_clks[] = { 192 DEF_MOD("gic_gicclk", R9A08G045_GIC600_GICCLK, R9A08G045_CLK_P1, 0x514, 0), 193 DEF_MOD("ia55_pclk", R9A08G045_IA55_PCLK, R9A08G045_CLK_P2, 0x518, 0), 194 DEF_MOD("ia55_clk", R9A08G045_IA55_CLK, R9A08G045_CLK_P1, 0x518, 1), 195 DEF_MOD("dmac_aclk", R9A08G045_DMAC_ACLK, R9A08G045_CLK_P3, 0x52c, 0), 196 DEF_MOD("wdt0_pclk", R9A08G045_WDT0_PCLK, R9A08G045_CLK_P0, 0x548, 0), 197 DEF_MOD("wdt0_clk", R9A08G045_WDT0_CLK, R9A08G045_OSCCLK, 0x548, 1), 198 DEF_MOD("sdhi0_imclk", R9A08G045_SDHI0_IMCLK, CLK_SD0_DIV4, 0x554, 0), 199 DEF_MOD("sdhi0_imclk2", R9A08G045_SDHI0_IMCLK2, CLK_SD0_DIV4, 0x554, 1), 200 DEF_MOD("sdhi0_clk_hs", R9A08G045_SDHI0_CLK_HS, R9A08G045_CLK_SD0, 0x554, 2), 201 DEF_MOD("sdhi0_aclk", R9A08G045_SDHI0_ACLK, R9A08G045_CLK_P1, 0x554, 3), 202 DEF_MOD("sdhi1_imclk", R9A08G045_SDHI1_IMCLK, CLK_SD1_DIV4, 0x554, 4), 203 DEF_MOD("sdhi1_imclk2", R9A08G045_SDHI1_IMCLK2, CLK_SD1_DIV4, 0x554, 5), 204 DEF_MOD("sdhi1_clk_hs", R9A08G045_SDHI1_CLK_HS, R9A08G045_CLK_SD1, 0x554, 6), 205 DEF_MOD("sdhi1_aclk", R9A08G045_SDHI1_ACLK, R9A08G045_CLK_P1, 0x554, 7), 206 DEF_MOD("sdhi2_imclk", R9A08G045_SDHI2_IMCLK, CLK_SD2_DIV4, 0x554, 8), 207 DEF_MOD("sdhi2_imclk2", R9A08G045_SDHI2_IMCLK2, CLK_SD2_DIV4, 0x554, 9), 208 DEF_MOD("sdhi2_clk_hs", R9A08G045_SDHI2_CLK_HS, R9A08G045_CLK_SD2, 0x554, 10), 209 DEF_MOD("sdhi2_aclk", R9A08G045_SDHI2_ACLK, R9A08G045_CLK_P1, 0x554, 11), 210 DEF_COUPLED("eth0_axi", R9A08G045_ETH0_CLK_AXI, R9A08G045_CLK_M0, 0x57c, 0), 211 DEF_COUPLED("eth0_chi", R9A08G045_ETH0_CLK_CHI, R9A08G045_CLK_ZT, 0x57c, 0), 212 DEF_MOD("eth0_refclk", R9A08G045_ETH0_REFCLK, R9A08G045_CLK_HP, 0x57c, 8), 213 DEF_COUPLED("eth1_axi", R9A08G045_ETH1_CLK_AXI, R9A08G045_CLK_M0, 0x57c, 1), 214 DEF_COUPLED("eth1_chi", R9A08G045_ETH1_CLK_CHI, R9A08G045_CLK_ZT, 0x57c, 1), 215 DEF_MOD("eth1_refclk", R9A08G045_ETH1_REFCLK, R9A08G045_CLK_HP, 0x57c, 9), 216 DEF_MOD("scif0_clk_pck", R9A08G045_SCIF0_CLK_PCK, R9A08G045_CLK_P0, 0x584, 0), 217 DEF_MOD("gpio_hclk", R9A08G045_GPIO_HCLK, R9A08G045_OSCCLK, 0x598, 0), 218 }; 219 220 static const struct rzg2l_reset r9a08g045_resets[] = { 221 DEF_RST(R9A08G045_GIC600_GICRESET_N, 0x814, 0), 222 DEF_RST(R9A08G045_GIC600_DBG_GICRESET_N, 0x814, 1), 223 DEF_RST(R9A08G045_IA55_RESETN, 0x818, 0), 224 DEF_RST(R9A08G045_WDT0_PRESETN, 0x848, 0), 225 DEF_RST(R9A08G045_SDHI0_IXRST, 0x854, 0), 226 DEF_RST(R9A08G045_SDHI1_IXRST, 0x854, 1), 227 DEF_RST(R9A08G045_SDHI2_IXRST, 0x854, 2), 228 DEF_RST(R9A08G045_ETH0_RST_HW_N, 0x87c, 0), 229 DEF_RST(R9A08G045_ETH1_RST_HW_N, 0x87c, 1), 230 DEF_RST(R9A08G045_SCIF0_RST_SYSTEM_N, 0x884, 0), 231 DEF_RST(R9A08G045_GPIO_RSTN, 0x898, 0), 232 DEF_RST(R9A08G045_GPIO_PORT_RESETN, 0x898, 1), 233 DEF_RST(R9A08G045_GPIO_SPARE_RESETN, 0x898, 2), 234 }; 235 236 static const unsigned int r9a08g045_crit_mod_clks[] __initconst = { 237 MOD_CLK_BASE + R9A08G045_GIC600_GICCLK, 238 MOD_CLK_BASE + R9A08G045_IA55_PCLK, 239 MOD_CLK_BASE + R9A08G045_IA55_CLK, 240 MOD_CLK_BASE + R9A08G045_DMAC_ACLK, 241 }; 242 243 static const struct rzg2l_cpg_pm_domain_init_data r9a08g045_pm_domains[] = { 244 /* Keep always-on domain on the first position for proper domains registration. */ 245 DEF_PD("always-on", R9A08G045_PD_ALWAYS_ON, 246 DEF_REG_CONF(0, 0), 247 RZG2L_PD_F_ALWAYS_ON), 248 DEF_PD("gic", R9A08G045_PD_GIC, 249 DEF_REG_CONF(CPG_BUS_ACPU_MSTOP, BIT(3)), 250 RZG2L_PD_F_ALWAYS_ON), 251 DEF_PD("ia55", R9A08G045_PD_IA55, 252 DEF_REG_CONF(CPG_BUS_PERI_CPU_MSTOP, BIT(13)), 253 RZG2L_PD_F_ALWAYS_ON), 254 DEF_PD("dmac", R9A08G045_PD_DMAC, 255 DEF_REG_CONF(CPG_BUS_REG1_MSTOP, GENMASK(3, 0)), 256 RZG2L_PD_F_ALWAYS_ON), 257 DEF_PD("wdt0", R9A08G045_PD_WDT0, 258 DEF_REG_CONF(CPG_BUS_REG0_MSTOP, BIT(0)), 259 RZG2L_PD_F_NONE), 260 DEF_PD("sdhi0", R9A08G045_PD_SDHI0, 261 DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, BIT(0)), 262 RZG2L_PD_F_NONE), 263 DEF_PD("sdhi1", R9A08G045_PD_SDHI1, 264 DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, BIT(1)), 265 RZG2L_PD_F_NONE), 266 DEF_PD("sdhi2", R9A08G045_PD_SDHI2, 267 DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, BIT(11)), 268 RZG2L_PD_F_NONE), 269 DEF_PD("eth0", R9A08G045_PD_ETHER0, 270 DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, BIT(2)), 271 RZG2L_PD_F_NONE), 272 DEF_PD("eth1", R9A08G045_PD_ETHER1, 273 DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, BIT(3)), 274 RZG2L_PD_F_NONE), 275 DEF_PD("scif0", R9A08G045_PD_SCIF0, 276 DEF_REG_CONF(CPG_BUS_MCPU2_MSTOP, BIT(1)), 277 RZG2L_PD_F_NONE), 278 }; 279 280 const struct rzg2l_cpg_info r9a08g045_cpg_info = { 281 /* Core Clocks */ 282 .core_clks = r9a08g045_core_clks, 283 .num_core_clks = ARRAY_SIZE(r9a08g045_core_clks), 284 .last_dt_core_clk = LAST_DT_CORE_CLK, 285 .num_total_core_clks = MOD_CLK_BASE, 286 287 /* Critical Module Clocks */ 288 .crit_mod_clks = r9a08g045_crit_mod_clks, 289 .num_crit_mod_clks = ARRAY_SIZE(r9a08g045_crit_mod_clks), 290 291 /* Module Clocks */ 292 .mod_clks = r9a08g045_mod_clks, 293 .num_mod_clks = ARRAY_SIZE(r9a08g045_mod_clks), 294 .num_hw_mod_clks = R9A08G045_VBAT_BCLK + 1, 295 296 /* Resets */ 297 .resets = r9a08g045_resets, 298 .num_resets = R9A08G045_VBAT_BRESETN + 1, /* Last reset ID + 1 */ 299 300 /* Power domains */ 301 .pm_domains = r9a08g045_pm_domains, 302 .num_pm_domains = ARRAY_SIZE(r9a08g045_pm_domains), 303 304 .has_clk_mon_regs = true, 305 }; 306