1 /* 2 * Renesas RCar Gen3 R8A7795/R8A7796 CPG MSSR driver 3 * 4 * Copyright (C) 2017 Marek Vasut <marek.vasut@gmail.com> 5 * 6 * Based on the following driver from Linux kernel: 7 * r8a7796 Clock Pulse Generator / Module Standby and Software Reset 8 * 9 * Copyright (C) 2016 Glider bvba 10 * 11 * SPDX-License-Identifier: GPL-2.0+ 12 */ 13 14 #include <common.h> 15 #include <clk-uclass.h> 16 #include <dm.h> 17 #include <errno.h> 18 #include <wait_bit.h> 19 #include <asm/io.h> 20 21 #include <dt-bindings/clock/r8a7795-cpg-mssr.h> 22 #include <dt-bindings/clock/r8a7796-cpg-mssr.h> 23 24 #define CPG_RST_MODEMR 0x0060 25 26 #define CPG_PLL0CR 0x00d8 27 #define CPG_PLL2CR 0x002c 28 #define CPG_PLL4CR 0x01f4 29 30 #define CPG_RPC_PREDIV_MASK 0x3 31 #define CPG_RPC_PREDIV_OFFSET 3 32 #define CPG_RPC_POSTDIV_MASK 0x7 33 #define CPG_RPC_POSTDIV_OFFSET 0 34 35 /* 36 * Module Standby and Software Reset register offets. 37 * 38 * If the registers exist, these are valid for SH-Mobile, R-Mobile, 39 * R-Car Gen2, R-Car Gen3, and RZ/G1. 40 * These are NOT valid for R-Car Gen1 and RZ/A1! 41 */ 42 43 /* 44 * Module Stop Status Register offsets 45 */ 46 47 static const u16 mstpsr[] = { 48 0x030, 0x038, 0x040, 0x048, 0x04C, 0x03C, 0x1C0, 0x1C4, 49 0x9A0, 0x9A4, 0x9A8, 0x9AC, 50 }; 51 52 #define MSTPSR(i) mstpsr[i] 53 54 55 /* 56 * System Module Stop Control Register offsets 57 */ 58 59 static const u16 smstpcr[] = { 60 0x130, 0x134, 0x138, 0x13C, 0x140, 0x144, 0x148, 0x14C, 61 0x990, 0x994, 0x998, 0x99C, 62 }; 63 64 #define SMSTPCR(i) smstpcr[i] 65 66 67 /* Realtime Module Stop Control Register offsets */ 68 #define RMSTPCR(i) (smstpcr[i] - 0x20) 69 70 /* Modem Module Stop Control Register offsets (r8a73a4) */ 71 #define MMSTPCR(i) (smstpcr[i] + 0x20) 72 73 /* Software Reset Clearing Register offsets */ 74 #define SRSTCLR(i) (0x940 + (i) * 4) 75 76 struct gen3_clk_priv { 77 void __iomem *base; 78 struct clk clk_extal; 79 struct clk clk_extalr; 80 const struct rcar_gen3_cpg_pll_config *cpg_pll_config; 81 const struct cpg_core_clk *core_clk; 82 u32 core_clk_size; 83 const struct mssr_mod_clk *mod_clk; 84 u32 mod_clk_size; 85 }; 86 87 /* 88 * Definitions of CPG Core Clocks 89 * 90 * These include: 91 * - Clock outputs exported to DT 92 * - External input clocks 93 * - Internal CPG clocks 94 */ 95 struct cpg_core_clk { 96 /* Common */ 97 const char *name; 98 unsigned int id; 99 unsigned int type; 100 /* Depending on type */ 101 unsigned int parent; /* Core Clocks only */ 102 unsigned int div; 103 unsigned int mult; 104 unsigned int offset; 105 }; 106 107 enum clk_types { 108 /* Generic */ 109 CLK_TYPE_IN, /* External Clock Input */ 110 CLK_TYPE_FF, /* Fixed Factor Clock */ 111 112 /* Custom definitions start here */ 113 CLK_TYPE_CUSTOM, 114 }; 115 116 #define DEF_TYPE(_name, _id, _type...) \ 117 { .name = _name, .id = _id, .type = _type } 118 #define DEF_BASE(_name, _id, _type, _parent...) \ 119 DEF_TYPE(_name, _id, _type, .parent = _parent) 120 121 #define DEF_INPUT(_name, _id) \ 122 DEF_TYPE(_name, _id, CLK_TYPE_IN) 123 #define DEF_FIXED(_name, _id, _parent, _div, _mult) \ 124 DEF_BASE(_name, _id, CLK_TYPE_FF, _parent, .div = _div, .mult = _mult) 125 #define DEF_GEN3_SD(_name, _id, _parent, _offset) \ 126 DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset) 127 #define DEF_GEN3_RPC(_name, _id, _parent, _offset) \ 128 DEF_BASE(_name, _id, CLK_TYPE_GEN3_RPC, _parent, .offset = _offset) 129 130 /* 131 * Definitions of Module Clocks 132 */ 133 struct mssr_mod_clk { 134 const char *name; 135 unsigned int id; 136 unsigned int parent; /* Add MOD_CLK_BASE for Module Clocks */ 137 }; 138 139 /* Convert from sparse base-100 to packed index space */ 140 #define MOD_CLK_PACK(x) ((x) - ((x) / 100) * (100 - 32)) 141 142 #define MOD_CLK_ID(x) (MOD_CLK_BASE + MOD_CLK_PACK(x)) 143 144 #define DEF_MOD(_name, _mod, _parent...) \ 145 { .name = _name, .id = MOD_CLK_ID(_mod), .parent = _parent } 146 147 enum rcar_gen3_clk_types { 148 CLK_TYPE_GEN3_MAIN = CLK_TYPE_CUSTOM, 149 CLK_TYPE_GEN3_PLL0, 150 CLK_TYPE_GEN3_PLL1, 151 CLK_TYPE_GEN3_PLL2, 152 CLK_TYPE_GEN3_PLL3, 153 CLK_TYPE_GEN3_PLL4, 154 CLK_TYPE_GEN3_SD, 155 CLK_TYPE_GEN3_RPC, 156 CLK_TYPE_GEN3_R, 157 }; 158 159 struct rcar_gen3_cpg_pll_config { 160 unsigned int extal_div; 161 unsigned int pll1_mult; 162 unsigned int pll3_mult; 163 }; 164 165 enum clk_ids { 166 /* Core Clock Outputs exported to DT */ 167 LAST_DT_CORE_CLK = R8A7796_CLK_OSC, 168 169 /* External Input Clocks */ 170 CLK_EXTAL, 171 CLK_EXTALR, 172 173 /* Internal Core Clocks */ 174 CLK_MAIN, 175 CLK_PLL0, 176 CLK_PLL1, 177 CLK_PLL2, 178 CLK_PLL3, 179 CLK_PLL4, 180 CLK_PLL1_DIV2, 181 CLK_PLL1_DIV4, 182 CLK_S0, 183 CLK_S1, 184 CLK_S2, 185 CLK_S3, 186 CLK_SDSRC, 187 CLK_RPCSRC, 188 CLK_SSPSRC, 189 CLK_RINT, 190 191 /* Module Clocks */ 192 MOD_CLK_BASE 193 }; 194 195 static const struct cpg_core_clk r8a7795_core_clks[] = { 196 /* External Clock Inputs */ 197 DEF_INPUT("extal", CLK_EXTAL), 198 DEF_INPUT("extalr", CLK_EXTALR), 199 200 /* Internal Core Clocks */ 201 DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL), 202 DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN), 203 DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN), 204 DEF_BASE(".pll2", CLK_PLL2, CLK_TYPE_GEN3_PLL2, CLK_MAIN), 205 DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN), 206 DEF_BASE(".pll4", CLK_PLL4, CLK_TYPE_GEN3_PLL4, CLK_MAIN), 207 208 DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), 209 DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1), 210 DEF_FIXED(".s0", CLK_S0, CLK_PLL1_DIV2, 2, 1), 211 DEF_FIXED(".s1", CLK_S1, CLK_PLL1_DIV2, 3, 1), 212 DEF_FIXED(".s2", CLK_S2, CLK_PLL1_DIV2, 4, 1), 213 DEF_FIXED(".s3", CLK_S3, CLK_PLL1_DIV2, 6, 1), 214 DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1_DIV2, 2, 1), 215 DEF_FIXED(".rpcsrc", CLK_RPCSRC, CLK_PLL1, 2, 1), 216 217 /* Core Clock Outputs */ 218 DEF_FIXED("ztr", R8A7795_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), 219 DEF_FIXED("ztrd2", R8A7795_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), 220 DEF_FIXED("zt", R8A7795_CLK_ZT, CLK_PLL1_DIV2, 4, 1), 221 DEF_FIXED("zx", R8A7795_CLK_ZX, CLK_PLL1_DIV2, 2, 1), 222 DEF_FIXED("s0d1", R8A7795_CLK_S0D1, CLK_S0, 1, 1), 223 DEF_FIXED("s0d2", R8A7795_CLK_S0D2, CLK_S0, 2, 1), 224 DEF_FIXED("s0d3", R8A7795_CLK_S0D3, CLK_S0, 3, 1), 225 DEF_FIXED("s0d4", R8A7795_CLK_S0D4, CLK_S0, 4, 1), 226 DEF_FIXED("s0d6", R8A7795_CLK_S0D6, CLK_S0, 6, 1), 227 DEF_FIXED("s0d8", R8A7795_CLK_S0D8, CLK_S0, 8, 1), 228 DEF_FIXED("s0d12", R8A7795_CLK_S0D12, CLK_S0, 12, 1), 229 DEF_FIXED("s1d1", R8A7795_CLK_S1D1, CLK_S1, 1, 1), 230 DEF_FIXED("s1d2", R8A7795_CLK_S1D2, CLK_S1, 2, 1), 231 DEF_FIXED("s1d4", R8A7795_CLK_S1D4, CLK_S1, 4, 1), 232 DEF_FIXED("s2d1", R8A7795_CLK_S2D1, CLK_S2, 1, 1), 233 DEF_FIXED("s2d2", R8A7795_CLK_S2D2, CLK_S2, 2, 1), 234 DEF_FIXED("s2d4", R8A7795_CLK_S2D4, CLK_S2, 4, 1), 235 DEF_FIXED("s3d1", R8A7795_CLK_S3D1, CLK_S3, 1, 1), 236 DEF_FIXED("s3d2", R8A7795_CLK_S3D2, CLK_S3, 2, 1), 237 DEF_FIXED("s3d4", R8A7795_CLK_S3D4, CLK_S3, 4, 1), 238 239 DEF_GEN3_SD("sd0", R8A7795_CLK_SD0, CLK_SDSRC, 0x074), 240 DEF_GEN3_SD("sd1", R8A7795_CLK_SD1, CLK_SDSRC, 0x078), 241 DEF_GEN3_SD("sd2", R8A7795_CLK_SD2, CLK_SDSRC, 0x268), 242 DEF_GEN3_SD("sd3", R8A7795_CLK_SD3, CLK_SDSRC, 0x26c), 243 244 DEF_GEN3_RPC("rpc", R8A7795_CLK_RPC, CLK_RPCSRC, 0x238), 245 246 DEF_FIXED("cl", R8A7795_CLK_CL, CLK_PLL1_DIV2, 48, 1), 247 DEF_FIXED("cp", R8A7795_CLK_CP, CLK_EXTAL, 2, 1), 248 249 /* NOTE: HDMI, CSI, CAN etc. clock are missing */ 250 251 DEF_BASE("r", R8A7795_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT), 252 }; 253 254 static const struct mssr_mod_clk r8a7795_mod_clks[] = { 255 DEF_MOD("fdp1-2", 117, R8A7795_CLK_S2D1), /* ES1.x */ 256 DEF_MOD("fdp1-1", 118, R8A7795_CLK_S0D1), 257 DEF_MOD("fdp1-0", 119, R8A7795_CLK_S0D1), 258 DEF_MOD("scif5", 202, R8A7795_CLK_S3D4), 259 DEF_MOD("scif4", 203, R8A7795_CLK_S3D4), 260 DEF_MOD("scif3", 204, R8A7795_CLK_S3D4), 261 DEF_MOD("scif1", 206, R8A7795_CLK_S3D4), 262 DEF_MOD("scif0", 207, R8A7795_CLK_S3D4), 263 DEF_MOD("msiof3", 208, R8A7795_CLK_MSO), 264 DEF_MOD("msiof2", 209, R8A7795_CLK_MSO), 265 DEF_MOD("msiof1", 210, R8A7795_CLK_MSO), 266 DEF_MOD("msiof0", 211, R8A7795_CLK_MSO), 267 DEF_MOD("sys-dmac2", 217, R8A7795_CLK_S0D3), 268 DEF_MOD("sys-dmac1", 218, R8A7795_CLK_S0D3), 269 DEF_MOD("sys-dmac0", 219, R8A7795_CLK_S0D3), 270 DEF_MOD("cmt3", 300, R8A7795_CLK_R), 271 DEF_MOD("cmt2", 301, R8A7795_CLK_R), 272 DEF_MOD("cmt1", 302, R8A7795_CLK_R), 273 DEF_MOD("cmt0", 303, R8A7795_CLK_R), 274 DEF_MOD("scif2", 310, R8A7795_CLK_S3D4), 275 DEF_MOD("sdif3", 311, R8A7795_CLK_SD3), 276 DEF_MOD("sdif2", 312, R8A7795_CLK_SD2), 277 DEF_MOD("sdif1", 313, R8A7795_CLK_SD1), 278 DEF_MOD("sdif0", 314, R8A7795_CLK_SD0), 279 DEF_MOD("pcie1", 318, R8A7795_CLK_S3D1), 280 DEF_MOD("pcie0", 319, R8A7795_CLK_S3D1), 281 DEF_MOD("usb-dmac30", 326, R8A7795_CLK_S3D1), 282 DEF_MOD("usb3-if1", 327, R8A7795_CLK_S3D1), /* ES1.x */ 283 DEF_MOD("usb3-if0", 328, R8A7795_CLK_S3D1), 284 DEF_MOD("usb-dmac31", 329, R8A7795_CLK_S3D1), 285 DEF_MOD("usb-dmac0", 330, R8A7795_CLK_S3D1), 286 DEF_MOD("usb-dmac1", 331, R8A7795_CLK_S3D1), 287 DEF_MOD("rwdt", 402, R8A7795_CLK_R), 288 DEF_MOD("intc-ex", 407, R8A7795_CLK_CP), 289 DEF_MOD("intc-ap", 408, R8A7795_CLK_S3D1), 290 DEF_MOD("audmac1", 501, R8A7795_CLK_S0D3), 291 DEF_MOD("audmac0", 502, R8A7795_CLK_S0D3), 292 DEF_MOD("drif7", 508, R8A7795_CLK_S3D2), 293 DEF_MOD("drif6", 509, R8A7795_CLK_S3D2), 294 DEF_MOD("drif5", 510, R8A7795_CLK_S3D2), 295 DEF_MOD("drif4", 511, R8A7795_CLK_S3D2), 296 DEF_MOD("drif3", 512, R8A7795_CLK_S3D2), 297 DEF_MOD("drif2", 513, R8A7795_CLK_S3D2), 298 DEF_MOD("drif1", 514, R8A7795_CLK_S3D2), 299 DEF_MOD("drif0", 515, R8A7795_CLK_S3D2), 300 DEF_MOD("hscif4", 516, R8A7795_CLK_S3D1), 301 DEF_MOD("hscif3", 517, R8A7795_CLK_S3D1), 302 DEF_MOD("hscif2", 518, R8A7795_CLK_S3D1), 303 DEF_MOD("hscif1", 519, R8A7795_CLK_S3D1), 304 DEF_MOD("hscif0", 520, R8A7795_CLK_S3D1), 305 DEF_MOD("thermal", 522, R8A7795_CLK_CP), 306 DEF_MOD("pwm", 523, R8A7795_CLK_S0D12), 307 DEF_MOD("fcpvd3", 600, R8A7795_CLK_S2D1), /* ES1.x */ 308 DEF_MOD("fcpvd2", 601, R8A7795_CLK_S0D2), 309 DEF_MOD("fcpvd1", 602, R8A7795_CLK_S0D2), 310 DEF_MOD("fcpvd0", 603, R8A7795_CLK_S0D2), 311 DEF_MOD("fcpvb1", 606, R8A7795_CLK_S0D1), 312 DEF_MOD("fcpvb0", 607, R8A7795_CLK_S0D1), 313 DEF_MOD("fcpvi2", 609, R8A7795_CLK_S2D1), /* ES1.x */ 314 DEF_MOD("fcpvi1", 610, R8A7795_CLK_S0D1), 315 DEF_MOD("fcpvi0", 611, R8A7795_CLK_S0D1), 316 DEF_MOD("fcpf2", 613, R8A7795_CLK_S2D1), /* ES1.x */ 317 DEF_MOD("fcpf1", 614, R8A7795_CLK_S0D1), 318 DEF_MOD("fcpf0", 615, R8A7795_CLK_S0D1), 319 DEF_MOD("fcpci1", 616, R8A7795_CLK_S2D1), /* ES1.x */ 320 DEF_MOD("fcpci0", 617, R8A7795_CLK_S2D1), /* ES1.x */ 321 DEF_MOD("fcpcs", 619, R8A7795_CLK_S0D1), 322 DEF_MOD("vspd3", 620, R8A7795_CLK_S2D1), /* ES1.x */ 323 DEF_MOD("vspd2", 621, R8A7795_CLK_S0D2), 324 DEF_MOD("vspd1", 622, R8A7795_CLK_S0D2), 325 DEF_MOD("vspd0", 623, R8A7795_CLK_S0D2), 326 DEF_MOD("vspbc", 624, R8A7795_CLK_S0D1), 327 DEF_MOD("vspbd", 626, R8A7795_CLK_S0D1), 328 DEF_MOD("vspi2", 629, R8A7795_CLK_S2D1), /* ES1.x */ 329 DEF_MOD("vspi1", 630, R8A7795_CLK_S0D1), 330 DEF_MOD("vspi0", 631, R8A7795_CLK_S0D1), 331 DEF_MOD("ehci3", 700, R8A7795_CLK_S3D4), 332 DEF_MOD("ehci2", 701, R8A7795_CLK_S3D4), 333 DEF_MOD("ehci1", 702, R8A7795_CLK_S3D4), 334 DEF_MOD("ehci0", 703, R8A7795_CLK_S3D4), 335 DEF_MOD("hsusb", 704, R8A7795_CLK_S3D4), 336 DEF_MOD("hsusb3", 705, R8A7795_CLK_S3D4), 337 DEF_MOD("csi21", 713, R8A7795_CLK_CSI0), /* ES1.x */ 338 DEF_MOD("csi20", 714, R8A7795_CLK_CSI0), 339 DEF_MOD("csi41", 715, R8A7795_CLK_CSI0), 340 DEF_MOD("csi40", 716, R8A7795_CLK_CSI0), 341 DEF_MOD("du3", 721, R8A7795_CLK_S2D1), 342 DEF_MOD("du2", 722, R8A7795_CLK_S2D1), 343 DEF_MOD("du1", 723, R8A7795_CLK_S2D1), 344 DEF_MOD("du0", 724, R8A7795_CLK_S2D1), 345 DEF_MOD("lvds", 727, R8A7795_CLK_S0D4), 346 DEF_MOD("hdmi1", 728, R8A7795_CLK_HDMI), 347 DEF_MOD("hdmi0", 729, R8A7795_CLK_HDMI), 348 DEF_MOD("vin7", 804, R8A7795_CLK_S0D2), 349 DEF_MOD("vin6", 805, R8A7795_CLK_S0D2), 350 DEF_MOD("vin5", 806, R8A7795_CLK_S0D2), 351 DEF_MOD("vin4", 807, R8A7795_CLK_S0D2), 352 DEF_MOD("vin3", 808, R8A7795_CLK_S0D2), 353 DEF_MOD("vin2", 809, R8A7795_CLK_S0D2), 354 DEF_MOD("vin1", 810, R8A7795_CLK_S0D2), 355 DEF_MOD("vin0", 811, R8A7795_CLK_S0D2), 356 DEF_MOD("etheravb", 812, R8A7795_CLK_S0D6), 357 DEF_MOD("sata0", 815, R8A7795_CLK_S3D2), 358 DEF_MOD("imr3", 820, R8A7795_CLK_S0D2), 359 DEF_MOD("imr2", 821, R8A7795_CLK_S0D2), 360 DEF_MOD("imr1", 822, R8A7795_CLK_S0D2), 361 DEF_MOD("imr0", 823, R8A7795_CLK_S0D2), 362 DEF_MOD("gpio7", 905, R8A7795_CLK_S3D4), 363 DEF_MOD("gpio6", 906, R8A7795_CLK_S3D4), 364 DEF_MOD("gpio5", 907, R8A7795_CLK_S3D4), 365 DEF_MOD("gpio4", 908, R8A7795_CLK_S3D4), 366 DEF_MOD("gpio3", 909, R8A7795_CLK_S3D4), 367 DEF_MOD("gpio2", 910, R8A7795_CLK_S3D4), 368 DEF_MOD("gpio1", 911, R8A7795_CLK_S3D4), 369 DEF_MOD("gpio0", 912, R8A7795_CLK_S3D4), 370 DEF_MOD("can-fd", 914, R8A7795_CLK_S3D2), 371 DEF_MOD("can-if1", 915, R8A7795_CLK_S3D4), 372 DEF_MOD("can-if0", 916, R8A7795_CLK_S3D4), 373 DEF_MOD("rpc", 917, R8A7795_CLK_RPC), 374 DEF_MOD("i2c6", 918, R8A7795_CLK_S0D6), 375 DEF_MOD("i2c5", 919, R8A7795_CLK_S0D6), 376 DEF_MOD("i2c-dvfs", 926, R8A7795_CLK_CP), 377 DEF_MOD("i2c4", 927, R8A7795_CLK_S0D6), 378 DEF_MOD("i2c3", 928, R8A7795_CLK_S0D6), 379 DEF_MOD("i2c2", 929, R8A7795_CLK_S3D2), 380 DEF_MOD("i2c1", 930, R8A7795_CLK_S3D2), 381 DEF_MOD("i2c0", 931, R8A7795_CLK_S3D2), 382 DEF_MOD("ssi-all", 1005, R8A7795_CLK_S3D4), 383 DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)), 384 DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)), 385 DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)), 386 DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)), 387 DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)), 388 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)), 389 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)), 390 DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)), 391 DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)), 392 DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)), 393 DEF_MOD("scu-all", 1017, R8A7795_CLK_S3D4), 394 DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)), 395 DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)), 396 DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)), 397 DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)), 398 DEF_MOD("scu-src9", 1022, MOD_CLK_ID(1017)), 399 DEF_MOD("scu-src8", 1023, MOD_CLK_ID(1017)), 400 DEF_MOD("scu-src7", 1024, MOD_CLK_ID(1017)), 401 DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)), 402 DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)), 403 DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)), 404 DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)), 405 DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)), 406 DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)), 407 DEF_MOD("scu-src0", 1031, MOD_CLK_ID(1017)), 408 }; 409 410 static const struct cpg_core_clk r8a7796_core_clks[] = { 411 /* External Clock Inputs */ 412 DEF_INPUT("extal", CLK_EXTAL), 413 DEF_INPUT("extalr", CLK_EXTALR), 414 415 /* Internal Core Clocks */ 416 DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL), 417 DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN), 418 DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN), 419 DEF_BASE(".pll2", CLK_PLL2, CLK_TYPE_GEN3_PLL2, CLK_MAIN), 420 DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN), 421 DEF_BASE(".pll4", CLK_PLL4, CLK_TYPE_GEN3_PLL4, CLK_MAIN), 422 423 DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), 424 DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1), 425 DEF_FIXED(".s0", CLK_S0, CLK_PLL1_DIV2, 2, 1), 426 DEF_FIXED(".s1", CLK_S1, CLK_PLL1_DIV2, 3, 1), 427 DEF_FIXED(".s2", CLK_S2, CLK_PLL1_DIV2, 4, 1), 428 DEF_FIXED(".s3", CLK_S3, CLK_PLL1_DIV2, 6, 1), 429 DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1_DIV2, 2, 1), 430 DEF_FIXED(".rpcsrc", CLK_RPCSRC, CLK_PLL1, 2, 1), 431 432 /* Core Clock Outputs */ 433 DEF_FIXED("ztr", R8A7796_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), 434 DEF_FIXED("ztrd2", R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), 435 DEF_FIXED("zt", R8A7796_CLK_ZT, CLK_PLL1_DIV2, 4, 1), 436 DEF_FIXED("zx", R8A7796_CLK_ZX, CLK_PLL1_DIV2, 2, 1), 437 DEF_FIXED("s0d1", R8A7796_CLK_S0D1, CLK_S0, 1, 1), 438 DEF_FIXED("s0d2", R8A7796_CLK_S0D2, CLK_S0, 2, 1), 439 DEF_FIXED("s0d3", R8A7796_CLK_S0D3, CLK_S0, 3, 1), 440 DEF_FIXED("s0d4", R8A7796_CLK_S0D4, CLK_S0, 4, 1), 441 DEF_FIXED("s0d6", R8A7796_CLK_S0D6, CLK_S0, 6, 1), 442 DEF_FIXED("s0d8", R8A7796_CLK_S0D8, CLK_S0, 8, 1), 443 DEF_FIXED("s0d12", R8A7796_CLK_S0D12, CLK_S0, 12, 1), 444 DEF_FIXED("s1d1", R8A7796_CLK_S1D1, CLK_S1, 1, 1), 445 DEF_FIXED("s1d2", R8A7796_CLK_S1D2, CLK_S1, 2, 1), 446 DEF_FIXED("s1d4", R8A7796_CLK_S1D4, CLK_S1, 4, 1), 447 DEF_FIXED("s2d1", R8A7796_CLK_S2D1, CLK_S2, 1, 1), 448 DEF_FIXED("s2d2", R8A7796_CLK_S2D2, CLK_S2, 2, 1), 449 DEF_FIXED("s2d4", R8A7796_CLK_S2D4, CLK_S2, 4, 1), 450 DEF_FIXED("s3d1", R8A7796_CLK_S3D1, CLK_S3, 1, 1), 451 DEF_FIXED("s3d2", R8A7796_CLK_S3D2, CLK_S3, 2, 1), 452 DEF_FIXED("s3d4", R8A7796_CLK_S3D4, CLK_S3, 4, 1), 453 454 DEF_GEN3_SD("sd0", R8A7796_CLK_SD0, CLK_SDSRC, 0x074), 455 DEF_GEN3_SD("sd1", R8A7796_CLK_SD1, CLK_SDSRC, 0x078), 456 DEF_GEN3_SD("sd2", R8A7796_CLK_SD2, CLK_SDSRC, 0x268), 457 DEF_GEN3_SD("sd3", R8A7796_CLK_SD3, CLK_SDSRC, 0x26c), 458 459 DEF_GEN3_RPC("rpc", R8A7796_CLK_RPC, CLK_RPCSRC, 0x238), 460 461 DEF_FIXED("cl", R8A7796_CLK_CL, CLK_PLL1_DIV2, 48, 1), 462 DEF_FIXED("cp", R8A7796_CLK_CP, CLK_EXTAL, 2, 1), 463 464 /* NOTE: HDMI, CSI, CAN etc. clock are missing */ 465 466 DEF_BASE("r", R8A7796_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT), 467 }; 468 469 static const struct mssr_mod_clk r8a7796_mod_clks[] = { 470 DEF_MOD("scif5", 202, R8A7796_CLK_S3D4), 471 DEF_MOD("scif4", 203, R8A7796_CLK_S3D4), 472 DEF_MOD("scif3", 204, R8A7796_CLK_S3D4), 473 DEF_MOD("scif1", 206, R8A7796_CLK_S3D4), 474 DEF_MOD("scif0", 207, R8A7796_CLK_S3D4), 475 DEF_MOD("msiof3", 208, R8A7796_CLK_MSO), 476 DEF_MOD("msiof2", 209, R8A7796_CLK_MSO), 477 DEF_MOD("msiof1", 210, R8A7796_CLK_MSO), 478 DEF_MOD("msiof0", 211, R8A7796_CLK_MSO), 479 DEF_MOD("sys-dmac2", 217, R8A7796_CLK_S0D3), 480 DEF_MOD("sys-dmac1", 218, R8A7796_CLK_S0D3), 481 DEF_MOD("sys-dmac0", 219, R8A7796_CLK_S0D3), 482 DEF_MOD("cmt3", 300, R8A7796_CLK_R), 483 DEF_MOD("cmt2", 301, R8A7796_CLK_R), 484 DEF_MOD("cmt1", 302, R8A7796_CLK_R), 485 DEF_MOD("cmt0", 303, R8A7796_CLK_R), 486 DEF_MOD("scif2", 310, R8A7796_CLK_S3D4), 487 DEF_MOD("sdif3", 311, R8A7796_CLK_SD3), 488 DEF_MOD("sdif2", 312, R8A7796_CLK_SD2), 489 DEF_MOD("sdif1", 313, R8A7796_CLK_SD1), 490 DEF_MOD("sdif0", 314, R8A7796_CLK_SD0), 491 DEF_MOD("pcie1", 318, R8A7796_CLK_S3D1), 492 DEF_MOD("pcie0", 319, R8A7796_CLK_S3D1), 493 DEF_MOD("usb3-if0", 328, R8A7796_CLK_S3D1), 494 DEF_MOD("usb-dmac0", 330, R8A7796_CLK_S3D1), 495 DEF_MOD("usb-dmac1", 331, R8A7796_CLK_S3D1), 496 DEF_MOD("rwdt", 402, R8A7796_CLK_R), 497 DEF_MOD("intc-ex", 407, R8A7796_CLK_CP), 498 DEF_MOD("intc-ap", 408, R8A7796_CLK_S3D1), 499 DEF_MOD("audmac1", 501, R8A7796_CLK_S0D3), 500 DEF_MOD("audmac0", 502, R8A7796_CLK_S0D3), 501 DEF_MOD("drif7", 508, R8A7796_CLK_S3D2), 502 DEF_MOD("drif6", 509, R8A7796_CLK_S3D2), 503 DEF_MOD("drif5", 510, R8A7796_CLK_S3D2), 504 DEF_MOD("drif4", 511, R8A7796_CLK_S3D2), 505 DEF_MOD("drif3", 512, R8A7796_CLK_S3D2), 506 DEF_MOD("drif2", 513, R8A7796_CLK_S3D2), 507 DEF_MOD("drif1", 514, R8A7796_CLK_S3D2), 508 DEF_MOD("drif0", 515, R8A7796_CLK_S3D2), 509 DEF_MOD("hscif4", 516, R8A7796_CLK_S3D1), 510 DEF_MOD("hscif3", 517, R8A7796_CLK_S3D1), 511 DEF_MOD("hscif2", 518, R8A7796_CLK_S3D1), 512 DEF_MOD("hscif1", 519, R8A7796_CLK_S3D1), 513 DEF_MOD("hscif0", 520, R8A7796_CLK_S3D1), 514 DEF_MOD("thermal", 522, R8A7796_CLK_CP), 515 DEF_MOD("pwm", 523, R8A7796_CLK_S0D12), 516 DEF_MOD("fcpvd2", 601, R8A7796_CLK_S0D2), 517 DEF_MOD("fcpvd1", 602, R8A7796_CLK_S0D2), 518 DEF_MOD("fcpvd0", 603, R8A7796_CLK_S0D2), 519 DEF_MOD("fcpvb0", 607, R8A7796_CLK_S0D1), 520 DEF_MOD("fcpvi0", 611, R8A7796_CLK_S0D1), 521 DEF_MOD("fcpf0", 615, R8A7796_CLK_S0D1), 522 DEF_MOD("fcpci0", 617, R8A7796_CLK_S0D2), 523 DEF_MOD("fcpcs", 619, R8A7796_CLK_S0D2), 524 DEF_MOD("vspd2", 621, R8A7796_CLK_S0D2), 525 DEF_MOD("vspd1", 622, R8A7796_CLK_S0D2), 526 DEF_MOD("vspd0", 623, R8A7796_CLK_S0D2), 527 DEF_MOD("vspb", 626, R8A7796_CLK_S0D1), 528 DEF_MOD("vspi0", 631, R8A7796_CLK_S0D1), 529 DEF_MOD("ehci1", 702, R8A7796_CLK_S3D4), 530 DEF_MOD("ehci0", 703, R8A7796_CLK_S3D4), 531 DEF_MOD("hsusb", 704, R8A7796_CLK_S3D4), 532 DEF_MOD("csi20", 714, R8A7796_CLK_CSI0), 533 DEF_MOD("csi40", 716, R8A7796_CLK_CSI0), 534 DEF_MOD("du2", 722, R8A7796_CLK_S2D1), 535 DEF_MOD("du1", 723, R8A7796_CLK_S2D1), 536 DEF_MOD("du0", 724, R8A7796_CLK_S2D1), 537 DEF_MOD("lvds", 727, R8A7796_CLK_S2D1), 538 DEF_MOD("hdmi0", 729, R8A7796_CLK_HDMI), 539 DEF_MOD("vin7", 804, R8A7796_CLK_S0D2), 540 DEF_MOD("vin6", 805, R8A7796_CLK_S0D2), 541 DEF_MOD("vin5", 806, R8A7796_CLK_S0D2), 542 DEF_MOD("vin4", 807, R8A7796_CLK_S0D2), 543 DEF_MOD("vin3", 808, R8A7796_CLK_S0D2), 544 DEF_MOD("vin2", 809, R8A7796_CLK_S0D2), 545 DEF_MOD("vin1", 810, R8A7796_CLK_S0D2), 546 DEF_MOD("vin0", 811, R8A7796_CLK_S0D2), 547 DEF_MOD("etheravb", 812, R8A7796_CLK_S0D6), 548 DEF_MOD("imr1", 822, R8A7796_CLK_S0D2), 549 DEF_MOD("imr0", 823, R8A7796_CLK_S0D2), 550 DEF_MOD("gpio7", 905, R8A7796_CLK_S3D4), 551 DEF_MOD("gpio6", 906, R8A7796_CLK_S3D4), 552 DEF_MOD("gpio5", 907, R8A7796_CLK_S3D4), 553 DEF_MOD("gpio4", 908, R8A7796_CLK_S3D4), 554 DEF_MOD("gpio3", 909, R8A7796_CLK_S3D4), 555 DEF_MOD("gpio2", 910, R8A7796_CLK_S3D4), 556 DEF_MOD("gpio1", 911, R8A7796_CLK_S3D4), 557 DEF_MOD("gpio0", 912, R8A7796_CLK_S3D4), 558 DEF_MOD("can-fd", 914, R8A7796_CLK_S3D2), 559 DEF_MOD("can-if1", 915, R8A7796_CLK_S3D4), 560 DEF_MOD("can-if0", 916, R8A7796_CLK_S3D4), 561 DEF_MOD("rpc", 917, R8A7795_CLK_RPC), 562 DEF_MOD("i2c6", 918, R8A7796_CLK_S0D6), 563 DEF_MOD("i2c5", 919, R8A7796_CLK_S0D6), 564 DEF_MOD("i2c-dvfs", 926, R8A7796_CLK_CP), 565 DEF_MOD("i2c4", 927, R8A7796_CLK_S0D6), 566 DEF_MOD("i2c3", 928, R8A7796_CLK_S0D6), 567 DEF_MOD("i2c2", 929, R8A7796_CLK_S3D2), 568 DEF_MOD("i2c1", 930, R8A7796_CLK_S3D2), 569 DEF_MOD("i2c0", 931, R8A7796_CLK_S3D2), 570 DEF_MOD("ssi-all", 1005, R8A7796_CLK_S3D4), 571 DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)), 572 DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)), 573 DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)), 574 DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)), 575 DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)), 576 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)), 577 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)), 578 DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)), 579 DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)), 580 DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)), 581 DEF_MOD("scu-all", 1017, R8A7796_CLK_S3D4), 582 DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)), 583 DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)), 584 DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)), 585 DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)), 586 DEF_MOD("scu-src9", 1022, MOD_CLK_ID(1017)), 587 DEF_MOD("scu-src8", 1023, MOD_CLK_ID(1017)), 588 DEF_MOD("scu-src7", 1024, MOD_CLK_ID(1017)), 589 DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)), 590 DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)), 591 DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)), 592 DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)), 593 DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)), 594 DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)), 595 DEF_MOD("scu-src0", 1031, MOD_CLK_ID(1017)), 596 }; 597 598 /* 599 * CPG Clock Data 600 */ 601 602 /* 603 * MD EXTAL PLL0 PLL1 PLL2 PLL3 PLL4 604 * 14 13 19 17 (MHz) 605 *------------------------------------------------------------------- 606 * 0 0 0 0 16.66 x 1 x180 x192 x144 x192 x144 607 * 0 0 0 1 16.66 x 1 x180 x192 x144 x128 x144 608 * 0 0 1 0 Prohibited setting 609 * 0 0 1 1 16.66 x 1 x180 x192 x144 x192 x144 610 * 0 1 0 0 20 x 1 x150 x160 x120 x160 x120 611 * 0 1 0 1 20 x 1 x150 x160 x120 x106 x120 612 * 0 1 1 0 Prohibited setting 613 * 0 1 1 1 20 x 1 x150 x160 x120 x160 x120 614 * 1 0 0 0 25 x 1 x120 x128 x96 x128 x96 615 * 1 0 0 1 25 x 1 x120 x128 x96 x84 x96 616 * 1 0 1 0 Prohibited setting 617 * 1 0 1 1 25 x 1 x120 x128 x96 x128 x96 618 * 1 1 0 0 33.33 / 2 x180 x192 x144 x192 x144 619 * 1 1 0 1 33.33 / 2 x180 x192 x144 x128 x144 620 * 1 1 1 0 Prohibited setting 621 * 1 1 1 1 33.33 / 2 x180 x192 x144 x192 x144 622 */ 623 #define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 11) | \ 624 (((md) & BIT(13)) >> 11) | \ 625 (((md) & BIT(19)) >> 18) | \ 626 (((md) & BIT(17)) >> 17)) 627 628 static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] = { 629 /* EXTAL div PLL1 mult PLL3 mult */ 630 { 1, 192, 192, }, 631 { 1, 192, 128, }, 632 { 0, /* Prohibited setting */ }, 633 { 1, 192, 192, }, 634 { 1, 160, 160, }, 635 { 1, 160, 106, }, 636 { 0, /* Prohibited setting */ }, 637 { 1, 160, 160, }, 638 { 1, 128, 128, }, 639 { 1, 128, 84, }, 640 { 0, /* Prohibited setting */ }, 641 { 1, 128, 128, }, 642 { 2, 192, 192, }, 643 { 2, 192, 128, }, 644 { 0, /* Prohibited setting */ }, 645 { 2, 192, 192, }, 646 }; 647 648 /* 649 * SDn Clock 650 */ 651 #define CPG_SD_STP_HCK BIT(9) 652 #define CPG_SD_STP_CK BIT(8) 653 654 #define CPG_SD_STP_MASK (CPG_SD_STP_HCK | CPG_SD_STP_CK) 655 #define CPG_SD_FC_MASK (0x7 << 2 | 0x3 << 0) 656 657 #define CPG_SD_DIV_TABLE_DATA(stp_hck, stp_ck, sd_srcfc, sd_fc, sd_div) \ 658 { \ 659 .val = ((stp_hck) ? CPG_SD_STP_HCK : 0) | \ 660 ((stp_ck) ? CPG_SD_STP_CK : 0) | \ 661 ((sd_srcfc) << 2) | \ 662 ((sd_fc) << 0), \ 663 .div = (sd_div), \ 664 } 665 666 struct sd_div_table { 667 u32 val; 668 unsigned int div; 669 }; 670 671 /* SDn divider 672 * sd_srcfc sd_fc div 673 * stp_hck stp_ck (div) (div) = sd_srcfc x sd_fc 674 *------------------------------------------------------------------- 675 * 0 0 0 (1) 1 (4) 4 676 * 0 0 1 (2) 1 (4) 8 677 * 1 0 2 (4) 1 (4) 16 678 * 1 0 3 (8) 1 (4) 32 679 * 1 0 4 (16) 1 (4) 64 680 * 0 0 0 (1) 0 (2) 2 681 * 0 0 1 (2) 0 (2) 4 682 * 1 0 2 (4) 0 (2) 8 683 * 1 0 3 (8) 0 (2) 16 684 * 1 0 4 (16) 0 (2) 32 685 */ 686 static const struct sd_div_table cpg_sd_div_table[] = { 687 /* CPG_SD_DIV_TABLE_DATA(stp_hck, stp_ck, sd_srcfc, sd_fc, sd_div) */ 688 CPG_SD_DIV_TABLE_DATA(0, 0, 0, 1, 4), 689 CPG_SD_DIV_TABLE_DATA(0, 0, 1, 1, 8), 690 CPG_SD_DIV_TABLE_DATA(1, 0, 2, 1, 16), 691 CPG_SD_DIV_TABLE_DATA(1, 0, 3, 1, 32), 692 CPG_SD_DIV_TABLE_DATA(1, 0, 4, 1, 64), 693 CPG_SD_DIV_TABLE_DATA(0, 0, 0, 0, 2), 694 CPG_SD_DIV_TABLE_DATA(0, 0, 1, 0, 4), 695 CPG_SD_DIV_TABLE_DATA(1, 0, 2, 0, 8), 696 CPG_SD_DIV_TABLE_DATA(1, 0, 3, 0, 16), 697 CPG_SD_DIV_TABLE_DATA(1, 0, 4, 0, 32), 698 }; 699 700 static bool gen3_clk_is_mod(struct clk *clk) 701 { 702 return (clk->id >> 16) == CPG_MOD; 703 } 704 705 static int gen3_clk_get_mod(struct clk *clk, const struct mssr_mod_clk **mssr) 706 { 707 struct gen3_clk_priv *priv = dev_get_priv(clk->dev); 708 const unsigned long clkid = clk->id & 0xffff; 709 int i; 710 711 if (!gen3_clk_is_mod(clk)) 712 return -EINVAL; 713 714 for (i = 0; i < priv->mod_clk_size; i++) { 715 if (priv->mod_clk[i].id != MOD_CLK_ID(clkid)) 716 continue; 717 718 *mssr = &priv->mod_clk[i]; 719 return 0; 720 } 721 722 return -ENODEV; 723 } 724 725 static int gen3_clk_get_core(struct clk *clk, const struct cpg_core_clk **core) 726 { 727 struct gen3_clk_priv *priv = dev_get_priv(clk->dev); 728 const unsigned long clkid = clk->id & 0xffff; 729 int i; 730 731 if (gen3_clk_is_mod(clk)) 732 return -EINVAL; 733 734 for (i = 0; i < priv->core_clk_size; i++) { 735 if (priv->core_clk[i].id != clkid) 736 continue; 737 738 *core = &priv->core_clk[i]; 739 return 0; 740 } 741 742 return -ENODEV; 743 } 744 745 static int gen3_clk_get_parent(struct clk *clk, struct clk *parent) 746 { 747 const struct cpg_core_clk *core; 748 const struct mssr_mod_clk *mssr; 749 int ret; 750 751 if (gen3_clk_is_mod(clk)) { 752 ret = gen3_clk_get_mod(clk, &mssr); 753 if (ret) 754 return ret; 755 756 parent->id = mssr->parent; 757 } else { 758 ret = gen3_clk_get_core(clk, &core); 759 if (ret) 760 return ret; 761 762 if (core->type == CLK_TYPE_IN) 763 parent->id = ~0; /* Top-level clock */ 764 else 765 parent->id = core->parent; 766 } 767 768 parent->dev = clk->dev; 769 770 return 0; 771 } 772 773 static int gen3_clk_setup_sdif_div(struct clk *clk) 774 { 775 struct gen3_clk_priv *priv = dev_get_priv(clk->dev); 776 const struct cpg_core_clk *core; 777 struct clk parent; 778 int ret; 779 780 ret = gen3_clk_get_parent(clk, &parent); 781 if (ret) { 782 printf("%s[%i] parent fail, ret=%i\n", __func__, __LINE__, ret); 783 return ret; 784 } 785 786 if (gen3_clk_is_mod(&parent)) 787 return 0; 788 789 ret = gen3_clk_get_core(&parent, &core); 790 if (ret) 791 return ret; 792 793 if (core->type != CLK_TYPE_GEN3_SD) 794 return 0; 795 796 debug("%s[%i] SDIF offset=%x\n", __func__, __LINE__, core->offset); 797 798 writel(1, priv->base + core->offset); 799 800 return 0; 801 } 802 803 static int gen3_clk_endisable(struct clk *clk, bool enable) 804 { 805 struct gen3_clk_priv *priv = dev_get_priv(clk->dev); 806 const unsigned long clkid = clk->id & 0xffff; 807 const unsigned int reg = clkid / 100; 808 const unsigned int bit = clkid % 100; 809 const u32 bitmask = BIT(bit); 810 int ret; 811 812 if (!gen3_clk_is_mod(clk)) 813 return -EINVAL; 814 815 debug("%s[%i] MSTP %lu=%02u/%02u %s\n", __func__, __LINE__, 816 clkid, reg, bit, enable ? "ON" : "OFF"); 817 818 if (enable) { 819 ret = gen3_clk_setup_sdif_div(clk); 820 if (ret) 821 return ret; 822 clrbits_le32(priv->base + SMSTPCR(reg), bitmask); 823 return wait_for_bit("MSTP", priv->base + MSTPSR(reg), 824 bitmask, 0, 100, 0); 825 } else { 826 setbits_le32(priv->base + SMSTPCR(reg), bitmask); 827 return 0; 828 } 829 } 830 831 static int gen3_clk_enable(struct clk *clk) 832 { 833 return gen3_clk_endisable(clk, true); 834 } 835 836 static int gen3_clk_disable(struct clk *clk) 837 { 838 return gen3_clk_endisable(clk, false); 839 } 840 841 static ulong gen3_clk_get_rate(struct clk *clk) 842 { 843 struct gen3_clk_priv *priv = dev_get_priv(clk->dev); 844 struct clk parent; 845 const struct cpg_core_clk *core; 846 const struct rcar_gen3_cpg_pll_config *pll_config = 847 priv->cpg_pll_config; 848 u32 value, mult, prediv, postdiv, rate = 0; 849 int i, ret; 850 851 debug("%s[%i] Clock: id=%lu\n", __func__, __LINE__, clk->id); 852 853 ret = gen3_clk_get_parent(clk, &parent); 854 if (ret) { 855 printf("%s[%i] parent fail, ret=%i\n", __func__, __LINE__, ret); 856 return ret; 857 } 858 859 if (gen3_clk_is_mod(clk)) { 860 rate = gen3_clk_get_rate(&parent); 861 debug("%s[%i] MOD clk: parent=%lu => rate=%u\n", 862 __func__, __LINE__, parent.id, rate); 863 return rate; 864 } 865 866 ret = gen3_clk_get_core(clk, &core); 867 if (ret) 868 return ret; 869 870 switch (core->type) { 871 case CLK_TYPE_IN: 872 if (core->id == CLK_EXTAL) { 873 rate = clk_get_rate(&priv->clk_extal); 874 debug("%s[%i] EXTAL clk: rate=%u\n", 875 __func__, __LINE__, rate); 876 return rate; 877 } 878 879 if (core->id == CLK_EXTALR) { 880 rate = clk_get_rate(&priv->clk_extalr); 881 debug("%s[%i] EXTALR clk: rate=%u\n", 882 __func__, __LINE__, rate); 883 return rate; 884 } 885 886 return -EINVAL; 887 888 case CLK_TYPE_GEN3_MAIN: 889 rate = gen3_clk_get_rate(&parent) / pll_config->extal_div; 890 debug("%s[%i] MAIN clk: parent=%i extal_div=%i => rate=%u\n", 891 __func__, __LINE__, 892 core->parent, pll_config->extal_div, rate); 893 return rate; 894 895 case CLK_TYPE_GEN3_PLL0: 896 value = readl(priv->base + CPG_PLL0CR); 897 mult = (((value >> 24) & 0x7f) + 1) * 2; 898 rate = gen3_clk_get_rate(&parent) * mult; 899 debug("%s[%i] PLL0 clk: parent=%i mult=%u => rate=%u\n", 900 __func__, __LINE__, core->parent, mult, rate); 901 return rate; 902 903 case CLK_TYPE_GEN3_PLL1: 904 rate = gen3_clk_get_rate(&parent) * pll_config->pll1_mult; 905 debug("%s[%i] PLL1 clk: parent=%i mul=%i => rate=%u\n", 906 __func__, __LINE__, 907 core->parent, pll_config->pll1_mult, rate); 908 return rate; 909 910 case CLK_TYPE_GEN3_PLL2: 911 value = readl(priv->base + CPG_PLL2CR); 912 mult = (((value >> 24) & 0x7f) + 1) * 2; 913 rate = gen3_clk_get_rate(&parent) * mult; 914 debug("%s[%i] PLL2 clk: parent=%i mult=%u => rate=%u\n", 915 __func__, __LINE__, core->parent, mult, rate); 916 return rate; 917 918 case CLK_TYPE_GEN3_PLL3: 919 rate = gen3_clk_get_rate(&parent) * pll_config->pll3_mult; 920 debug("%s[%i] PLL3 clk: parent=%i mul=%i => rate=%u\n", 921 __func__, __LINE__, 922 core->parent, pll_config->pll3_mult, rate); 923 return rate; 924 925 case CLK_TYPE_GEN3_PLL4: 926 value = readl(priv->base + CPG_PLL4CR); 927 mult = (((value >> 24) & 0x7f) + 1) * 2; 928 rate = gen3_clk_get_rate(&parent) * mult; 929 debug("%s[%i] PLL4 clk: parent=%i mult=%u => rate=%u\n", 930 __func__, __LINE__, core->parent, mult, rate); 931 return rate; 932 933 case CLK_TYPE_FF: 934 rate = (gen3_clk_get_rate(&parent) * core->mult) / core->div; 935 debug("%s[%i] FIXED clk: parent=%i div=%i mul=%i => rate=%u\n", 936 __func__, __LINE__, 937 core->parent, core->mult, core->div, rate); 938 return rate; 939 940 case CLK_TYPE_GEN3_SD: /* FIXME */ 941 value = readl(priv->base + core->offset); 942 value &= CPG_SD_STP_MASK | CPG_SD_FC_MASK; 943 944 for (i = 0; i < ARRAY_SIZE(cpg_sd_div_table); i++) { 945 if (cpg_sd_div_table[i].val != value) 946 continue; 947 948 rate = gen3_clk_get_rate(&parent) / 949 cpg_sd_div_table[i].div; 950 debug("%s[%i] SD clk: parent=%i div=%i => rate=%u\n", 951 __func__, __LINE__, 952 core->parent, cpg_sd_div_table[i].div, rate); 953 954 return rate; 955 } 956 957 return -EINVAL; 958 959 case CLK_TYPE_GEN3_RPC: 960 rate = gen3_clk_get_rate(&parent); 961 962 value = readl(priv->base + core->offset); 963 964 prediv = (value >> CPG_RPC_PREDIV_OFFSET) & 965 CPG_RPC_PREDIV_MASK; 966 if (prediv == 2) 967 rate /= 5; 968 else if (prediv == 3) 969 rate /= 6; 970 else 971 return -EINVAL; 972 973 postdiv = (value >> CPG_RPC_POSTDIV_OFFSET) & 974 CPG_RPC_POSTDIV_MASK; 975 rate /= postdiv + 1; 976 977 debug("%s[%i] RPC clk: parent=%i prediv=%i postdiv=%i => rate=%u\n", 978 __func__, __LINE__, 979 core->parent, prediv, postdiv, rate); 980 981 return -EINVAL; 982 983 } 984 985 printf("%s[%i] unknown fail\n", __func__, __LINE__); 986 987 return -ENOENT; 988 } 989 990 static ulong gen3_clk_set_rate(struct clk *clk, ulong rate) 991 { 992 return gen3_clk_get_rate(clk); 993 } 994 995 static int gen3_clk_of_xlate(struct clk *clk, struct ofnode_phandle_args *args) 996 { 997 if (args->args_count != 2) { 998 debug("Invaild args_count: %d\n", args->args_count); 999 return -EINVAL; 1000 } 1001 1002 clk->id = (args->args[0] << 16) | args->args[1]; 1003 1004 return 0; 1005 } 1006 1007 static const struct clk_ops gen3_clk_ops = { 1008 .enable = gen3_clk_enable, 1009 .disable = gen3_clk_disable, 1010 .get_rate = gen3_clk_get_rate, 1011 .set_rate = gen3_clk_set_rate, 1012 .of_xlate = gen3_clk_of_xlate, 1013 }; 1014 1015 enum gen3_clk_model { 1016 CLK_R8A7795, 1017 CLK_R8A7796, 1018 }; 1019 1020 static int gen3_clk_probe(struct udevice *dev) 1021 { 1022 struct gen3_clk_priv *priv = dev_get_priv(dev); 1023 enum gen3_clk_model model = dev_get_driver_data(dev); 1024 fdt_addr_t rst_base; 1025 u32 cpg_mode; 1026 int ret; 1027 1028 priv->base = (struct gen3_base *)devfdt_get_addr(dev); 1029 if (!priv->base) 1030 return -EINVAL; 1031 1032 switch (model) { 1033 case CLK_R8A7795: 1034 priv->core_clk = r8a7795_core_clks; 1035 priv->core_clk_size = ARRAY_SIZE(r8a7795_core_clks); 1036 priv->mod_clk = r8a7795_mod_clks; 1037 priv->mod_clk_size = ARRAY_SIZE(r8a7795_mod_clks); 1038 ret = fdt_node_offset_by_compatible(gd->fdt_blob, -1, 1039 "renesas,r8a7795-rst"); 1040 if (ret < 0) 1041 return ret; 1042 break; 1043 case CLK_R8A7796: 1044 priv->core_clk = r8a7796_core_clks; 1045 priv->core_clk_size = ARRAY_SIZE(r8a7796_core_clks); 1046 priv->mod_clk = r8a7796_mod_clks; 1047 priv->mod_clk_size = ARRAY_SIZE(r8a7796_mod_clks); 1048 ret = fdt_node_offset_by_compatible(gd->fdt_blob, -1, 1049 "renesas,r8a7796-rst"); 1050 if (ret < 0) 1051 return ret; 1052 break; 1053 default: 1054 return -EINVAL; 1055 } 1056 1057 rst_base = fdtdec_get_addr(gd->fdt_blob, ret, "reg"); 1058 if (rst_base == FDT_ADDR_T_NONE) 1059 return -EINVAL; 1060 1061 cpg_mode = readl(rst_base + CPG_RST_MODEMR); 1062 1063 priv->cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; 1064 if (!priv->cpg_pll_config->extal_div) 1065 return -EINVAL; 1066 1067 ret = clk_get_by_name(dev, "extal", &priv->clk_extal); 1068 if (ret < 0) 1069 return ret; 1070 1071 ret = clk_get_by_name(dev, "extalr", &priv->clk_extalr); 1072 if (ret < 0) 1073 return ret; 1074 1075 return 0; 1076 } 1077 1078 struct mstp_stop_table { 1079 u32 dis; 1080 u32 en; 1081 }; 1082 1083 static struct mstp_stop_table r8a7795_mstp_table[] = { 1084 { 0x00640800, 0x0 }, { 0xF3EE9390, 0x0 }, 1085 { 0x340FAFDC, 0x2040 }, { 0xD80C7CDF, 0x400 }, 1086 { 0x80000184, 0x180 }, { 0x40BFFF46, 0x0 }, 1087 { 0xE5FBEECF, 0x0 }, { 0x39FFFF0E, 0x0 }, 1088 { 0x01F19FF4, 0x0 }, { 0xFFDFFFFF, 0x0 }, 1089 { 0xFFFEFFE0, 0x0 }, { 0x00000000, 0x0 }, 1090 }; 1091 1092 static struct mstp_stop_table r8a7796_mstp_table[] = { 1093 { 0x00200000, 0x0 }, { 0xFFFFFFFF, 0x0 }, 1094 { 0x340E2FDC, 0x2040 }, { 0xFFFFFFDF, 0x400 }, 1095 { 0x80000184, 0x180 }, { 0xC3FFFFFF, 0x0 }, 1096 { 0xFFFFFFFF, 0x0 }, { 0xFFFFFFFF, 0x0 }, 1097 { 0x01F1FFF7, 0x0 }, { 0xFFFFFFFE, 0x0 }, 1098 { 0xFFFEFFE0, 0x0 }, { 0x000000B7, 0x0 }, 1099 }; 1100 1101 #define TSTR0 0x04 1102 #define TSTR0_STR0 BIT(0) 1103 1104 static int gen3_clk_remove(struct udevice *dev) 1105 { 1106 struct gen3_clk_priv *priv = dev_get_priv(dev); 1107 enum gen3_clk_model model = dev_get_driver_data(dev); 1108 struct mstp_stop_table *tbl; 1109 unsigned int i, tbl_size; 1110 1111 switch (model) { 1112 case CLK_R8A7795: 1113 tbl = r8a7795_mstp_table; 1114 tbl_size = ARRAY_SIZE(r8a7795_mstp_table); 1115 break; 1116 case CLK_R8A7796: 1117 tbl = r8a7796_mstp_table; 1118 tbl_size = ARRAY_SIZE(r8a7796_mstp_table); 1119 break; 1120 default: 1121 return -EINVAL; 1122 } 1123 1124 /* Stop TMU0 */ 1125 clrbits_le32(TMU_BASE + TSTR0, TSTR0_STR0); 1126 1127 /* Stop module clock */ 1128 for (i = 0; i < tbl_size; i++) { 1129 clrsetbits_le32(priv->base + SMSTPCR(i), tbl[i].dis, tbl[i].en); 1130 clrsetbits_le32(priv->base + RMSTPCR(i), tbl[i].dis, 0x0); 1131 } 1132 1133 return 0; 1134 } 1135 1136 static const struct udevice_id gen3_clk_ids[] = { 1137 { .compatible = "renesas,r8a7795-cpg-mssr", .data = CLK_R8A7795 }, 1138 { .compatible = "renesas,r8a7796-cpg-mssr", .data = CLK_R8A7796 }, 1139 { } 1140 }; 1141 1142 U_BOOT_DRIVER(clk_gen3) = { 1143 .name = "clk_gen3", 1144 .id = UCLASS_CLK, 1145 .of_match = gen3_clk_ids, 1146 .priv_auto_alloc_size = sizeof(struct gen3_clk_priv), 1147 .ops = &gen3_clk_ops, 1148 .probe = gen3_clk_probe, 1149 .remove = gen3_clk_remove, 1150 }; 1151