1 /* 2 * (C) Copyright 2015 Google, Inc 3 * (C) Copyright 2016 Heiko Stuebner <heiko@sntech.de> 4 * 5 * SPDX-License-Identifier: GPL-2.0 6 */ 7 8 #include <common.h> 9 #include <clk-uclass.h> 10 #include <dm.h> 11 #include <dt-structs.h> 12 #include <errno.h> 13 #include <mapmem.h> 14 #include <syscon.h> 15 #include <asm/io.h> 16 #include <asm/arch/clock.h> 17 #include <asm/arch/cru_rk3188.h> 18 #include <asm/arch/grf_rk3188.h> 19 #include <asm/arch/hardware.h> 20 #include <dt-bindings/clock/rk3188-cru.h> 21 #include <dm/device-internal.h> 22 #include <dm/lists.h> 23 #include <dm/uclass-internal.h> 24 #include <linux/log2.h> 25 26 DECLARE_GLOBAL_DATA_PTR; 27 28 enum rk3188_clk_type { 29 RK3188_CRU, 30 RK3188A_CRU, 31 }; 32 33 struct rk3188_clk_plat { 34 #if CONFIG_IS_ENABLED(OF_PLATDATA) 35 struct dtd_rockchip_rk3188_cru dtd; 36 #endif 37 }; 38 39 struct pll_div { 40 u32 nr; 41 u32 nf; 42 u32 no; 43 }; 44 45 enum { 46 VCO_MAX_HZ = 2200U * 1000000, 47 VCO_MIN_HZ = 440 * 1000000, 48 OUTPUT_MAX_HZ = 2200U * 1000000, 49 OUTPUT_MIN_HZ = 30 * 1000000, 50 FREF_MAX_HZ = 2200U * 1000000, 51 FREF_MIN_HZ = 30 * 1000, 52 }; 53 54 enum { 55 /* PLL CON0 */ 56 PLL_OD_MASK = 0x0f, 57 58 /* PLL CON1 */ 59 PLL_NF_MASK = 0x1fff, 60 61 /* PLL CON2 */ 62 PLL_BWADJ_MASK = 0x0fff, 63 64 /* PLL CON3 */ 65 PLL_RESET_SHIFT = 5, 66 67 /* GRF_SOC_STATUS0 */ 68 SOCSTS_DPLL_LOCK = 1 << 5, 69 SOCSTS_APLL_LOCK = 1 << 6, 70 SOCSTS_CPLL_LOCK = 1 << 7, 71 SOCSTS_GPLL_LOCK = 1 << 8, 72 }; 73 74 #define DIV_TO_RATE(input_rate, div) ((input_rate) / ((div) + 1)) 75 76 #define PLL_DIVISORS(hz, _nr, _no) {\ 77 .nr = _nr, .nf = (u32)((u64)hz * _nr * _no / OSC_HZ), .no = _no};\ 78 _Static_assert(((u64)hz * _nr * _no / OSC_HZ) * OSC_HZ /\ 79 (_nr * _no) == hz, #hz "Hz cannot be hit with PLL "\ 80 "divisors on line " __stringify(__LINE__)); 81 82 /* Keep divisors as low as possible to reduce jitter and power usage */ 83 #ifdef CONFIG_SPL_BUILD 84 static const struct pll_div gpll_init_cfg = PLL_DIVISORS(GPLL_HZ, 2, 2); 85 static const struct pll_div cpll_init_cfg = PLL_DIVISORS(CPLL_HZ, 1, 2); 86 #endif 87 88 static int rkclk_set_pll(struct rk3188_cru *cru, enum rk_clk_id clk_id, 89 const struct pll_div *div, bool has_bwadj) 90 { 91 int pll_id = rk_pll_id(clk_id); 92 struct rk3188_pll *pll = &cru->pll[pll_id]; 93 /* All PLLs have same VCO and output frequency range restrictions. */ 94 uint vco_hz = OSC_HZ / 1000 * div->nf / div->nr * 1000; 95 uint output_hz = vco_hz / div->no; 96 97 debug("PLL at %x: nf=%d, nr=%d, no=%d, vco=%u Hz, output=%u Hz\n", 98 (uint)pll, div->nf, div->nr, div->no, vco_hz, output_hz); 99 assert(vco_hz >= VCO_MIN_HZ && vco_hz <= VCO_MAX_HZ && 100 output_hz >= OUTPUT_MIN_HZ && output_hz <= OUTPUT_MAX_HZ && 101 (div->no == 1 || !(div->no % 2))); 102 103 /* enter reset */ 104 rk_setreg(&pll->con3, 1 << PLL_RESET_SHIFT); 105 106 rk_clrsetreg(&pll->con0, 107 CLKR_MASK << CLKR_SHIFT | PLL_OD_MASK, 108 ((div->nr - 1) << CLKR_SHIFT) | (div->no - 1)); 109 rk_clrsetreg(&pll->con1, CLKF_MASK, div->nf - 1); 110 111 if (has_bwadj) 112 rk_clrsetreg(&pll->con2, PLL_BWADJ_MASK, (div->nf >> 1) - 1); 113 114 udelay(10); 115 116 /* return from reset */ 117 rk_clrreg(&pll->con3, 1 << PLL_RESET_SHIFT); 118 119 return 0; 120 } 121 122 static int rkclk_configure_ddr(struct rk3188_cru *cru, struct rk3188_grf *grf, 123 unsigned int hz, bool has_bwadj) 124 { 125 static const struct pll_div dpll_cfg[] = { 126 {.nf = 25, .nr = 2, .no = 1}, 127 {.nf = 400, .nr = 9, .no = 2}, 128 {.nf = 500, .nr = 9, .no = 2}, 129 {.nf = 100, .nr = 3, .no = 1}, 130 }; 131 int cfg; 132 133 switch (hz) { 134 case 300000000: 135 cfg = 0; 136 break; 137 case 533000000: /* actually 533.3P MHz */ 138 cfg = 1; 139 break; 140 case 666000000: /* actually 666.6P MHz */ 141 cfg = 2; 142 break; 143 case 800000000: 144 cfg = 3; 145 break; 146 default: 147 debug("Unsupported SDRAM frequency"); 148 return -EINVAL; 149 } 150 151 /* pll enter slow-mode */ 152 rk_clrsetreg(&cru->cru_mode_con, DPLL_MODE_MASK << DPLL_MODE_SHIFT, 153 DPLL_MODE_SLOW << DPLL_MODE_SHIFT); 154 155 rkclk_set_pll(cru, CLK_DDR, &dpll_cfg[cfg], has_bwadj); 156 157 /* wait for pll lock */ 158 while (!(readl(&grf->soc_status0) & SOCSTS_DPLL_LOCK)) 159 udelay(1); 160 161 /* PLL enter normal-mode */ 162 rk_clrsetreg(&cru->cru_mode_con, DPLL_MODE_MASK << DPLL_MODE_SHIFT, 163 DPLL_MODE_NORMAL << DPLL_MODE_SHIFT); 164 165 return 0; 166 } 167 168 static int rkclk_configure_cpu(struct rk3188_cru *cru, struct rk3188_grf *grf, 169 unsigned int hz, bool has_bwadj) 170 { 171 static const struct pll_div apll_cfg[] = { 172 {.nf = 50, .nr = 1, .no = 2}, 173 {.nf = 67, .nr = 1, .no = 1}, 174 }; 175 int div_core_peri, div_aclk_core, cfg; 176 177 /* 178 * We support two possible frequencies, the safe 600MHz 179 * which will work with default pmic settings and will 180 * be set in SPL to get away from the 24MHz default and 181 * the maximum of 1.6Ghz, which boards can set if they 182 * were able to get pmic support for it. 183 */ 184 switch (hz) { 185 case APLL_SAFE_HZ: 186 cfg = 0; 187 div_core_peri = 1; 188 div_aclk_core = 3; 189 break; 190 case APLL_HZ: 191 cfg = 1; 192 div_core_peri = 2; 193 div_aclk_core = 3; 194 break; 195 default: 196 debug("Unsupported ARMCLK frequency"); 197 return -EINVAL; 198 } 199 200 /* pll enter slow-mode */ 201 rk_clrsetreg(&cru->cru_mode_con, APLL_MODE_MASK << APLL_MODE_SHIFT, 202 APLL_MODE_SLOW << APLL_MODE_SHIFT); 203 204 rkclk_set_pll(cru, CLK_ARM, &apll_cfg[cfg], has_bwadj); 205 206 /* waiting for pll lock */ 207 while (!(readl(&grf->soc_status0) & SOCSTS_APLL_LOCK)) 208 udelay(1); 209 210 /* Set divider for peripherals attached to the cpu core. */ 211 rk_clrsetreg(&cru->cru_clksel_con[0], 212 CORE_PERI_DIV_MASK << CORE_PERI_DIV_SHIFT, 213 div_core_peri << CORE_PERI_DIV_SHIFT); 214 215 /* set up dependent divisor for aclk_core */ 216 rk_clrsetreg(&cru->cru_clksel_con[1], 217 CORE_ACLK_DIV_MASK << CORE_ACLK_DIV_SHIFT, 218 div_aclk_core << CORE_ACLK_DIV_SHIFT); 219 220 /* PLL enter normal-mode */ 221 rk_clrsetreg(&cru->cru_mode_con, APLL_MODE_MASK << APLL_MODE_SHIFT, 222 APLL_MODE_NORMAL << APLL_MODE_SHIFT); 223 224 return hz; 225 } 226 227 /* Get pll rate by id */ 228 static uint32_t rkclk_pll_get_rate(struct rk3188_cru *cru, 229 enum rk_clk_id clk_id) 230 { 231 uint32_t nr, no, nf; 232 uint32_t con; 233 int pll_id = rk_pll_id(clk_id); 234 struct rk3188_pll *pll = &cru->pll[pll_id]; 235 static u8 clk_shift[CLK_COUNT] = { 236 0xff, APLL_MODE_SHIFT, DPLL_MODE_SHIFT, CPLL_MODE_SHIFT, 237 GPLL_MODE_SHIFT 238 }; 239 uint shift; 240 241 con = readl(&cru->cru_mode_con); 242 shift = clk_shift[clk_id]; 243 switch ((con >> shift) & APLL_MODE_MASK) { 244 case APLL_MODE_SLOW: 245 return OSC_HZ; 246 case APLL_MODE_NORMAL: 247 /* normal mode */ 248 con = readl(&pll->con0); 249 no = ((con >> CLKOD_SHIFT) & CLKOD_MASK) + 1; 250 nr = ((con >> CLKR_SHIFT) & CLKR_MASK) + 1; 251 con = readl(&pll->con1); 252 nf = ((con >> CLKF_SHIFT) & CLKF_MASK) + 1; 253 254 return (24 * nf / (nr * no)) * 1000000; 255 case APLL_MODE_DEEP: 256 default: 257 return 32768; 258 } 259 } 260 261 static ulong rockchip_mmc_get_clk(struct rk3188_cru *cru, uint gclk_rate, 262 int periph) 263 { 264 uint div; 265 u32 con; 266 267 switch (periph) { 268 case HCLK_EMMC: 269 case SCLK_EMMC: 270 con = readl(&cru->cru_clksel_con[12]); 271 div = (con >> EMMC_DIV_SHIFT) & EMMC_DIV_MASK; 272 break; 273 case HCLK_SDMMC: 274 case SCLK_SDMMC: 275 con = readl(&cru->cru_clksel_con[11]); 276 div = (con >> MMC0_DIV_SHIFT) & MMC0_DIV_MASK; 277 break; 278 case HCLK_SDIO: 279 case SCLK_SDIO: 280 con = readl(&cru->cru_clksel_con[12]); 281 div = (con >> SDIO_DIV_SHIFT) & SDIO_DIV_MASK; 282 break; 283 default: 284 return -EINVAL; 285 } 286 287 return DIV_TO_RATE(gclk_rate, div) / 2; 288 } 289 290 static ulong rockchip_mmc_set_clk(struct rk3188_cru *cru, uint gclk_rate, 291 int periph, uint freq) 292 { 293 int src_clk_div; 294 295 debug("%s: gclk_rate=%u\n", __func__, gclk_rate); 296 /* mmc clock defaulg div 2 internal, need provide double in cru */ 297 src_clk_div = DIV_ROUND_UP(gclk_rate / 2, freq) - 1; 298 assert(src_clk_div <= 0x3f); 299 300 switch (periph) { 301 case HCLK_EMMC: 302 case SCLK_EMMC: 303 rk_clrsetreg(&cru->cru_clksel_con[12], 304 EMMC_DIV_MASK << EMMC_DIV_SHIFT, 305 src_clk_div << EMMC_DIV_SHIFT); 306 break; 307 case HCLK_SDMMC: 308 case SCLK_SDMMC: 309 rk_clrsetreg(&cru->cru_clksel_con[11], 310 MMC0_DIV_MASK << MMC0_DIV_SHIFT, 311 src_clk_div << MMC0_DIV_SHIFT); 312 break; 313 case HCLK_SDIO: 314 case SCLK_SDIO: 315 rk_clrsetreg(&cru->cru_clksel_con[12], 316 SDIO_DIV_MASK << SDIO_DIV_SHIFT, 317 src_clk_div << SDIO_DIV_SHIFT); 318 break; 319 default: 320 return -EINVAL; 321 } 322 323 return rockchip_mmc_get_clk(cru, gclk_rate, periph); 324 } 325 326 static ulong rockchip_spi_get_clk(struct rk3188_cru *cru, uint gclk_rate, 327 int periph) 328 { 329 uint div; 330 u32 con; 331 332 switch (periph) { 333 case SCLK_SPI0: 334 con = readl(&cru->cru_clksel_con[25]); 335 div = (con >> SPI0_DIV_SHIFT) & SPI0_DIV_MASK; 336 break; 337 case SCLK_SPI1: 338 con = readl(&cru->cru_clksel_con[25]); 339 div = (con >> SPI1_DIV_SHIFT) & SPI1_DIV_MASK; 340 break; 341 default: 342 return -EINVAL; 343 } 344 345 return DIV_TO_RATE(gclk_rate, div); 346 } 347 348 static ulong rockchip_spi_set_clk(struct rk3188_cru *cru, uint gclk_rate, 349 int periph, uint freq) 350 { 351 int src_clk_div = DIV_ROUND_UP(gclk_rate, freq) - 1; 352 353 assert(src_clk_div < 128); 354 switch (periph) { 355 case SCLK_SPI0: 356 assert(src_clk_div <= SPI0_DIV_MASK); 357 rk_clrsetreg(&cru->cru_clksel_con[25], 358 SPI0_DIV_MASK << SPI0_DIV_SHIFT, 359 src_clk_div << SPI0_DIV_SHIFT); 360 break; 361 case SCLK_SPI1: 362 assert(src_clk_div <= SPI1_DIV_MASK); 363 rk_clrsetreg(&cru->cru_clksel_con[25], 364 SPI1_DIV_MASK << SPI1_DIV_SHIFT, 365 src_clk_div << SPI1_DIV_SHIFT); 366 break; 367 default: 368 return -EINVAL; 369 } 370 371 return rockchip_spi_get_clk(cru, gclk_rate, periph); 372 } 373 374 #ifdef CONFIG_SPL_BUILD 375 static void rkclk_init(struct rk3188_cru *cru, struct rk3188_grf *grf, 376 bool has_bwadj) 377 { 378 u32 aclk_div, hclk_div, pclk_div, h2p_div; 379 380 /* pll enter slow-mode */ 381 rk_clrsetreg(&cru->cru_mode_con, 382 GPLL_MODE_MASK << GPLL_MODE_SHIFT | 383 CPLL_MODE_MASK << CPLL_MODE_SHIFT, 384 GPLL_MODE_SLOW << GPLL_MODE_SHIFT | 385 CPLL_MODE_SLOW << CPLL_MODE_SHIFT); 386 387 /* init pll */ 388 rkclk_set_pll(cru, CLK_GENERAL, &gpll_init_cfg, has_bwadj); 389 rkclk_set_pll(cru, CLK_CODEC, &cpll_init_cfg, has_bwadj); 390 391 /* waiting for pll lock */ 392 while ((readl(&grf->soc_status0) & 393 (SOCSTS_CPLL_LOCK | SOCSTS_GPLL_LOCK)) != 394 (SOCSTS_CPLL_LOCK | SOCSTS_GPLL_LOCK)) 395 udelay(1); 396 397 /* 398 * cpu clock pll source selection and 399 * reparent aclk_cpu_pre from apll to gpll 400 * set up dependent divisors for PCLK/HCLK and ACLK clocks. 401 */ 402 aclk_div = DIV_ROUND_UP(GPLL_HZ, CPU_ACLK_HZ) - 1; 403 assert((aclk_div + 1) * CPU_ACLK_HZ == GPLL_HZ && aclk_div <= 0x1f); 404 405 rk_clrsetreg(&cru->cru_clksel_con[0], 406 CPU_ACLK_PLL_MASK << CPU_ACLK_PLL_SHIFT | 407 A9_CPU_DIV_MASK << A9_CPU_DIV_SHIFT, 408 CPU_ACLK_PLL_SELECT_GPLL << CPU_ACLK_PLL_SHIFT | 409 aclk_div << A9_CPU_DIV_SHIFT); 410 411 hclk_div = ilog2(CPU_ACLK_HZ / CPU_HCLK_HZ); 412 assert((1 << hclk_div) * CPU_HCLK_HZ == CPU_ACLK_HZ && hclk_div < 0x3); 413 pclk_div = ilog2(CPU_ACLK_HZ / CPU_PCLK_HZ); 414 assert((1 << pclk_div) * CPU_PCLK_HZ == CPU_ACLK_HZ && pclk_div < 0x4); 415 h2p_div = ilog2(CPU_HCLK_HZ / CPU_H2P_HZ); 416 assert((1 << h2p_div) * CPU_H2P_HZ == CPU_HCLK_HZ && pclk_div < 0x3); 417 418 rk_clrsetreg(&cru->cru_clksel_con[1], 419 AHB2APB_DIV_MASK << AHB2APB_DIV_SHIFT | 420 CPU_PCLK_DIV_MASK << CPU_PCLK_DIV_SHIFT | 421 CPU_HCLK_DIV_MASK << CPU_HCLK_DIV_SHIFT, 422 h2p_div << AHB2APB_DIV_SHIFT | 423 pclk_div << CPU_PCLK_DIV_SHIFT | 424 hclk_div << CPU_HCLK_DIV_SHIFT); 425 426 /* 427 * peri clock pll source selection and 428 * set up dependent divisors for PCLK/HCLK and ACLK clocks. 429 */ 430 aclk_div = GPLL_HZ / PERI_ACLK_HZ - 1; 431 assert((aclk_div + 1) * PERI_ACLK_HZ == GPLL_HZ && aclk_div < 0x1f); 432 433 hclk_div = ilog2(PERI_ACLK_HZ / PERI_HCLK_HZ); 434 assert((1 << hclk_div) * PERI_HCLK_HZ == 435 PERI_ACLK_HZ && (hclk_div < 0x4)); 436 437 pclk_div = ilog2(PERI_ACLK_HZ / PERI_PCLK_HZ); 438 assert((1 << pclk_div) * PERI_PCLK_HZ == 439 PERI_ACLK_HZ && (pclk_div < 0x4)); 440 441 rk_clrsetreg(&cru->cru_clksel_con[10], 442 PERI_PCLK_DIV_MASK << PERI_PCLK_DIV_SHIFT | 443 PERI_HCLK_DIV_MASK << PERI_HCLK_DIV_SHIFT | 444 PERI_ACLK_DIV_MASK << PERI_ACLK_DIV_SHIFT, 445 PERI_SEL_GPLL << PERI_SEL_PLL_SHIFT | 446 pclk_div << PERI_PCLK_DIV_SHIFT | 447 hclk_div << PERI_HCLK_DIV_SHIFT | 448 aclk_div << PERI_ACLK_DIV_SHIFT); 449 450 /* PLL enter normal-mode */ 451 rk_clrsetreg(&cru->cru_mode_con, 452 GPLL_MODE_MASK << GPLL_MODE_SHIFT | 453 CPLL_MODE_MASK << CPLL_MODE_SHIFT, 454 GPLL_MODE_NORMAL << GPLL_MODE_SHIFT | 455 CPLL_MODE_NORMAL << CPLL_MODE_SHIFT); 456 457 rockchip_mmc_set_clk(cru, PERI_HCLK_HZ, HCLK_SDMMC, 16000000); 458 } 459 #endif 460 461 static ulong rk3188_clk_get_rate(struct clk *clk) 462 { 463 struct rk3188_clk_priv *priv = dev_get_priv(clk->dev); 464 ulong new_rate, gclk_rate; 465 466 gclk_rate = rkclk_pll_get_rate(priv->cru, CLK_GENERAL); 467 switch (clk->id) { 468 case 1 ... 4: 469 new_rate = rkclk_pll_get_rate(priv->cru, clk->id); 470 break; 471 case HCLK_EMMC: 472 case HCLK_SDMMC: 473 case HCLK_SDIO: 474 case SCLK_EMMC: 475 case SCLK_SDMMC: 476 case SCLK_SDIO: 477 new_rate = rockchip_mmc_get_clk(priv->cru, PERI_HCLK_HZ, 478 clk->id); 479 break; 480 case SCLK_SPI0: 481 case SCLK_SPI1: 482 new_rate = rockchip_spi_get_clk(priv->cru, PERI_PCLK_HZ, 483 clk->id); 484 break; 485 case PCLK_I2C0: 486 case PCLK_I2C1: 487 case PCLK_I2C2: 488 case PCLK_I2C3: 489 case PCLK_I2C4: 490 return gclk_rate; 491 default: 492 return -ENOENT; 493 } 494 495 return new_rate; 496 } 497 498 static ulong rk3188_clk_set_rate(struct clk *clk, ulong rate) 499 { 500 struct rk3188_clk_priv *priv = dev_get_priv(clk->dev); 501 struct rk3188_cru *cru = priv->cru; 502 ulong new_rate; 503 504 switch (clk->id) { 505 case PLL_APLL: 506 new_rate = rkclk_configure_cpu(priv->cru, priv->grf, rate, 507 priv->has_bwadj); 508 break; 509 case CLK_DDR: 510 new_rate = rkclk_configure_ddr(priv->cru, priv->grf, rate, 511 priv->has_bwadj); 512 break; 513 case HCLK_EMMC: 514 case HCLK_SDMMC: 515 case HCLK_SDIO: 516 case SCLK_EMMC: 517 case SCLK_SDMMC: 518 case SCLK_SDIO: 519 new_rate = rockchip_mmc_set_clk(cru, PERI_HCLK_HZ, 520 clk->id, rate); 521 break; 522 case SCLK_SPI0: 523 case SCLK_SPI1: 524 new_rate = rockchip_spi_set_clk(cru, PERI_PCLK_HZ, 525 clk->id, rate); 526 break; 527 default: 528 return -ENOENT; 529 } 530 531 return new_rate; 532 } 533 534 static struct clk_ops rk3188_clk_ops = { 535 .get_rate = rk3188_clk_get_rate, 536 .set_rate = rk3188_clk_set_rate, 537 }; 538 539 static int rk3188_clk_ofdata_to_platdata(struct udevice *dev) 540 { 541 #if !CONFIG_IS_ENABLED(OF_PLATDATA) 542 struct rk3188_clk_priv *priv = dev_get_priv(dev); 543 544 priv->cru = (struct rk3188_cru *)devfdt_get_addr(dev); 545 #endif 546 547 return 0; 548 } 549 550 static int rk3188_clk_probe(struct udevice *dev) 551 { 552 struct rk3188_clk_priv *priv = dev_get_priv(dev); 553 enum rk3188_clk_type type = dev_get_driver_data(dev); 554 555 priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); 556 if (IS_ERR(priv->grf)) 557 return PTR_ERR(priv->grf); 558 priv->has_bwadj = (type == RK3188A_CRU) ? 1 : 0; 559 560 #ifdef CONFIG_SPL_BUILD 561 #if CONFIG_IS_ENABLED(OF_PLATDATA) 562 struct rk3188_clk_plat *plat = dev_get_platdata(dev); 563 564 priv->cru = map_sysmem(plat->dtd.reg[0], plat->dtd.reg[1]); 565 #endif 566 567 rkclk_init(priv->cru, priv->grf, priv->has_bwadj); 568 #endif 569 570 return 0; 571 } 572 573 static int rk3188_clk_bind(struct udevice *dev) 574 { 575 int ret; 576 struct udevice *sys_child; 577 struct sysreset_reg *priv; 578 579 /* The reset driver does not have a device node, so bind it here */ 580 ret = device_bind_driver(dev, "rockchip_sysreset", "sysreset", 581 &sys_child); 582 if (ret) { 583 debug("Warning: No sysreset driver: ret=%d\n", ret); 584 } else { 585 priv = malloc(sizeof(struct sysreset_reg)); 586 priv->glb_srst_fst_value = offsetof(struct rk3188_cru, 587 cru_glb_srst_fst_value); 588 priv->glb_srst_snd_value = offsetof(struct rk3188_cru, 589 cru_glb_srst_snd_value); 590 sys_child->priv = priv; 591 } 592 593 return 0; 594 } 595 596 static const struct udevice_id rk3188_clk_ids[] = { 597 { .compatible = "rockchip,rk3188-cru", .data = RK3188_CRU }, 598 { .compatible = "rockchip,rk3188a-cru", .data = RK3188A_CRU }, 599 { } 600 }; 601 602 U_BOOT_DRIVER(rockchip_rk3188_cru) = { 603 .name = "rockchip_rk3188_cru", 604 .id = UCLASS_CLK, 605 .of_match = rk3188_clk_ids, 606 .priv_auto_alloc_size = sizeof(struct rk3188_clk_priv), 607 .platdata_auto_alloc_size = sizeof(struct rk3188_clk_plat), 608 .ops = &rk3188_clk_ops, 609 .bind = rk3188_clk_bind, 610 .ofdata_to_platdata = rk3188_clk_ofdata_to_platdata, 611 .probe = rk3188_clk_probe, 612 }; 613