1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (C) 2024, STMicroelectronics 4 */ 5 6 #include <assert.h> 7 #include <config.h> 8 #include <drivers/clk_dt.h> 9 #include <drivers/stm32_rif.h> 10 #include <drivers/stm32_shared_io.h> 11 #include <drivers/stm32mp25_rcc.h> 12 #include <drivers/stm32mp_dt_bindings.h> 13 #include <initcall.h> 14 #include <io.h> 15 #include <kernel/dt.h> 16 #include <kernel/panic.h> 17 #include <kernel/pm.h> 18 #include <libfdt.h> 19 #include <stdbool.h> 20 #include <stdio.h> 21 #include <stm32_sysconf.h> 22 #include <stm32_util.h> 23 #include <trace.h> 24 #include <util.h> 25 26 #include "clk-stm32-core.h" 27 28 #define MAX_OPP CFG_STM32MP_OPP_COUNT 29 30 #define RCC_SECCFGR(x) (U(0x0) + U(0x4) * (x)) 31 #define RCC_PRIVCFGR(x) (U(0x10) + U(0x4) * (x)) 32 #define RCC_RCFGLOCKR(x) (U(0x20) + U(0x4) * (x)) 33 #define RCC_CIDCFGR(x) (U(0x030) + U(0x08) * (x)) 34 #define RCC_SEMCR(x) (U(0x034) + U(0x08) * (x)) 35 36 #define TIMEOUT_US_100MS U(100000) 37 #define TIMEOUT_US_200MS U(200000) 38 #define TIMEOUT_US_1S U(1000000) 39 40 #define PLLRDY_TIMEOUT TIMEOUT_US_200MS 41 #define CLKSRC_TIMEOUT TIMEOUT_US_200MS 42 #define CLKDIV_TIMEOUT TIMEOUT_US_200MS 43 #define OSCRDY_TIMEOUT TIMEOUT_US_1S 44 45 /* PLL minimal frequencies for clock sources */ 46 #define PLL_REFCLK_MIN UL(5000000) 47 #define PLL_FRAC_REFCLK_MIN UL(10000000) 48 49 /* Parameters from XBAR_CFG in st,cksrc field */ 50 #define XBAR_CKSRC_CHANNEL GENMASK_32(5, 0) 51 #define XBAR_CKSRC_SRC GENMASK_32(9, 6) 52 #define XBAR_CKSRC_SRC_OFFSET U(6) 53 #define XBAR_CKSRC_PREDIV GENMASK_32(19, 10) 54 #define XBAR_CKSRC_PREDIV_OFFSET U(10) 55 #define XBAR_CKSRC_FINDIV GENMASK_32(25, 20) 56 #define XBAR_CKSRC_FINDIV_OFFSET U(20) 57 58 #define XBAR_CHANNEL_NB U(64) 59 #define XBAR_ROOT_CHANNEL_NB U(7) 60 61 #define FLEX_STGEN U(33) 62 63 #define RCC_0_MHZ UL(0) 64 #define RCC_4_MHZ UL(4000000) 65 #define RCC_16_MHZ UL(16000000) 66 67 /* CIDCFGR register bitfields */ 68 #define RCC_CIDCFGR_SEMWL_MASK GENMASK_32(23, 16) 69 #define RCC_CIDCFGR_SCID_MASK GENMASK_32(6, 4) 70 #define RCC_CIDCFGR_CONF_MASK (_CIDCFGR_CFEN | \ 71 _CIDCFGR_SEMEN | \ 72 RCC_CIDCFGR_SCID_MASK |\ 73 RCC_CIDCFGR_SEMWL_MASK) 74 75 /* SECCFGR register bitfields */ 76 #define RCC_SECCFGR_EN BIT(0) 77 78 /* SEMCR register bitfields */ 79 #define RCC_SEMCR_SCID_MASK GENMASK_32(6, 4) 80 #define RCC_SEMCR_SCID_SHIFT U(4) 81 82 /* RIF miscellaneous */ 83 #define RCC_NB_RIF_RES U(114) 84 #define RCC_NB_CONFS ROUNDUP_DIV(RCC_NB_RIF_RES, 32) 85 86 enum pll_cfg { 87 FBDIV, 88 REFDIV, 89 POSTDIV1, 90 POSTDIV2, 91 PLLCFG_NB 92 }; 93 94 enum pll_csg { 95 DIVVAL, 96 SPREAD, 97 DOWNSPREAD, 98 PLLCSG_NB 99 }; 100 101 struct stm32_pll_dt_cfg { 102 bool enabled; 103 uint32_t cfg[PLLCFG_NB]; 104 uint32_t csg[PLLCSG_NB]; 105 uint32_t frac; 106 bool csg_enabled; 107 uint32_t src; 108 }; 109 110 struct stm32_osci_dt_cfg { 111 unsigned long freq; 112 bool bypass; 113 bool digbyp; 114 bool css; 115 uint32_t drive; 116 }; 117 118 struct stm32_clk_opp_cfg { 119 uint32_t frq; 120 uint32_t src; 121 struct stm32_pll_dt_cfg pll_cfg; 122 }; 123 124 struct stm32_clk_opp_dt_cfg { 125 struct stm32_clk_opp_cfg cpu1_opp[MAX_OPP]; 126 }; 127 128 struct stm32_clk_platdata { 129 uintptr_t rcc_base; 130 uint32_t nosci; 131 struct stm32_osci_dt_cfg *osci; 132 uint32_t npll; 133 struct stm32_pll_dt_cfg *pll; 134 struct stm32_clk_opp_dt_cfg *opp; 135 struct rif_conf_data conf_data; 136 unsigned int nb_res; 137 uint32_t nbusclk; 138 uint32_t *busclk; 139 uint32_t nkernelclk; 140 uint32_t *kernelclk; 141 uint32_t nflexgen; 142 uint32_t *flexgen; 143 uint32_t c1msrd; 144 bool safe_rst; 145 }; 146 147 /* 148 * GATE CONFIG 149 */ 150 151 /* WARNING GATE_XXX_RDY MUST FOLLOW GATE_XXX */ 152 153 enum enum_gate_cfg { 154 GATE_HSI, 155 GATE_HSI_RDY, 156 GATE_HSE, 157 GATE_HSE_RDY, 158 GATE_LSE, 159 GATE_LSE_RDY, 160 GATE_LSI, 161 GATE_LSI_RDY, 162 GATE_MSI, 163 GATE_MSI_RDY, 164 GATE_PLL1, 165 GATE_PLL1_RDY, 166 GATE_PLL2, 167 GATE_PLL2_RDY, 168 GATE_PLL3, 169 GATE_PLL3_RDY, 170 GATE_PLL4, 171 GATE_PLL4_RDY, 172 GATE_PLL5, 173 GATE_PLL5_RDY, 174 GATE_PLL6, 175 GATE_PLL6_RDY, 176 GATE_PLL7, 177 GATE_PLL7_RDY, 178 GATE_PLL8, 179 GATE_PLL8_RDY, 180 GATE_PLL4_CKREFST, 181 GATE_PLL5_CKREFST, 182 GATE_PLL6_CKREFST, 183 GATE_PLL7_CKREFST, 184 GATE_PLL8_CKREFST, 185 GATE_HSEDIV2, 186 GATE_APB1DIV_RDY, 187 GATE_APB2DIV_RDY, 188 GATE_APB3DIV_RDY, 189 GATE_APB4DIV_RDY, 190 GATE_APBDBGDIV_RDY, 191 GATE_TIMG1PRE_RDY, 192 GATE_TIMG2PRE_RDY, 193 GATE_LSMCUDIV_RDY, 194 GATE_RTCCK, 195 GATE_C3, 196 GATE_LPTIM3C3, 197 GATE_LPTIM4C3, 198 GATE_LPTIM5C3, 199 GATE_SPI8C3, 200 GATE_LPUART1C3, 201 GATE_I2C8C3, 202 GATE_ADF1C3, 203 GATE_GPIOZC3, 204 GATE_LPDMAC3, 205 GATE_RTCC3, 206 GATE_I3C4C3, 207 GATE_MCO1, 208 GATE_MCO2, 209 GATE_DDRCP, 210 GATE_DDRCAPB, 211 GATE_DDRPHYCAPB, 212 GATE_DDRPHYC, 213 GATE_DDRCFG, 214 GATE_SYSRAM, 215 GATE_VDERAM, 216 GATE_SRAM1, 217 GATE_SRAM2, 218 GATE_RETRAM, 219 GATE_BKPSRAM, 220 GATE_LPSRAM1, 221 GATE_LPSRAM2, 222 GATE_LPSRAM3, 223 GATE_OSPI1, 224 GATE_OSPI2, 225 GATE_FMC, 226 GATE_DBG, 227 GATE_TRACE, 228 GATE_STM, 229 GATE_ETR, 230 GATE_GPIOA, 231 GATE_GPIOB, 232 GATE_GPIOC, 233 GATE_GPIOD, 234 GATE_GPIOE, 235 GATE_GPIOF, 236 GATE_GPIOG, 237 GATE_GPIOH, 238 GATE_GPIOI, 239 GATE_GPIOJ, 240 GATE_GPIOK, 241 GATE_GPIOZ, 242 GATE_HPDMA1, 243 GATE_HPDMA2, 244 GATE_HPDMA3, 245 GATE_LPDMA, 246 GATE_HSEM, 247 GATE_IPCC1, 248 GATE_IPCC2, 249 GATE_RTC, 250 GATE_SYSCPU1, 251 GATE_BSEC, 252 GATE_IS2M, 253 GATE_HSIMON, 254 GATE_TIM1, 255 GATE_TIM2, 256 GATE_TIM3, 257 GATE_TIM4, 258 GATE_TIM5, 259 GATE_TIM6, 260 GATE_TIM7, 261 GATE_TIM8, 262 GATE_TIM10, 263 GATE_TIM11, 264 GATE_TIM12, 265 GATE_TIM13, 266 GATE_TIM14, 267 GATE_TIM15, 268 GATE_TIM16, 269 GATE_TIM17, 270 GATE_TIM20, 271 GATE_LPTIM1, 272 GATE_LPTIM2, 273 GATE_LPTIM3, 274 GATE_LPTIM4, 275 GATE_LPTIM5, 276 GATE_SPI1, 277 GATE_SPI2, 278 GATE_SPI3, 279 GATE_SPI4, 280 GATE_SPI5, 281 GATE_SPI6, 282 GATE_SPI7, 283 GATE_SPI8, 284 GATE_SPDIFRX, 285 GATE_USART1, 286 GATE_USART2, 287 GATE_USART3, 288 GATE_UART4, 289 GATE_UART5, 290 GATE_USART6, 291 GATE_UART7, 292 GATE_UART8, 293 GATE_UART9, 294 GATE_LPUART1, 295 GATE_I2C1, 296 GATE_I2C2, 297 GATE_I2C3, 298 GATE_I2C4, 299 GATE_I2C5, 300 GATE_I2C6, 301 GATE_I2C7, 302 GATE_I2C8, 303 GATE_SAI1, 304 GATE_SAI2, 305 GATE_SAI3, 306 GATE_SAI4, 307 GATE_MDF1, 308 GATE_ADF1, 309 GATE_FDCAN, 310 GATE_HDP, 311 GATE_ADC12, 312 GATE_ADC3, 313 GATE_ETH1MAC, 314 GATE_ETH1, 315 GATE_ETH1TX, 316 GATE_ETH1RX, 317 GATE_ETH1STP, 318 GATE_ETH2MAC, 319 GATE_ETH2, 320 GATE_ETH2STP, 321 GATE_ETH2TX, 322 GATE_ETH2RX, 323 GATE_USB2, 324 GATE_USB2PHY1, 325 GATE_USB2PHY2, 326 GATE_USB3DR, 327 GATE_USB3PCIEPHY, 328 GATE_PCIE, 329 GATE_USBTC, 330 GATE_ETHSWMAC, 331 GATE_ETHSW, 332 GATE_ETHSWREF, 333 GATE_STGEN, 334 GATE_SDMMC1, 335 GATE_SDMMC2, 336 GATE_SDMMC3, 337 GATE_GPU, 338 GATE_LTDC, 339 GATE_DSI, 340 GATE_LVDS, 341 GATE_CSI, 342 GATE_DCMIPP, 343 GATE_CCI, 344 GATE_VDEC, 345 GATE_VENC, 346 GATE_RNG, 347 GATE_PKA, 348 GATE_SAES, 349 GATE_HASH, 350 GATE_CRYP1, 351 GATE_CRYP2, 352 GATE_IWDG1, 353 GATE_IWDG2, 354 GATE_IWDG3, 355 GATE_IWDG4, 356 GATE_IWDG5, 357 GATE_WWDG1, 358 GATE_WWDG2, 359 GATE_VREF, 360 GATE_DTS, 361 GATE_CRC, 362 GATE_SERC, 363 GATE_OSPIIOM, 364 GATE_GICV2M, 365 GATE_I3C1, 366 GATE_I3C2, 367 GATE_I3C3, 368 GATE_I3C4, 369 GATE_NB 370 }; 371 372 #define GATE_CFG(_id, _offset, _bit_idx, _offset_clr)\ 373 [(_id)] = {\ 374 .offset = (_offset),\ 375 .bit_idx = (_bit_idx),\ 376 .set_clr = (_offset_clr),\ 377 } 378 379 static const struct gate_cfg gates_mp25[GATE_NB] = { 380 GATE_CFG(GATE_LSE, RCC_BDCR, 0, 0), 381 GATE_CFG(GATE_LSE_RDY, RCC_BDCR, 2, 0), 382 GATE_CFG(GATE_LSI, RCC_BDCR, 9, 0), 383 GATE_CFG(GATE_LSI_RDY, RCC_BDCR, 10, 0), 384 GATE_CFG(GATE_RTCCK, RCC_BDCR, 20, 0), 385 GATE_CFG(GATE_MSI, RCC_D3DCR, 0, 0), 386 GATE_CFG(GATE_MSI_RDY, RCC_D3DCR, 2, 0), 387 GATE_CFG(GATE_PLL1, RCC_PLL2CFGR1, 8, 0), 388 GATE_CFG(GATE_PLL1_RDY, RCC_PLL2CFGR1, 24, 0), 389 GATE_CFG(GATE_PLL2, RCC_PLL2CFGR1, 8, 0), 390 GATE_CFG(GATE_PLL2_RDY, RCC_PLL2CFGR1, 24, 0), 391 GATE_CFG(GATE_PLL3, RCC_PLL3CFGR1, 8, 0), 392 GATE_CFG(GATE_PLL3_RDY, RCC_PLL3CFGR1, 24, 0), 393 GATE_CFG(GATE_PLL4, RCC_PLL4CFGR1, 8, 0), 394 GATE_CFG(GATE_PLL4_RDY, RCC_PLL4CFGR1, 24, 0), 395 GATE_CFG(GATE_PLL5, RCC_PLL5CFGR1, 8, 0), 396 GATE_CFG(GATE_PLL5_RDY, RCC_PLL5CFGR1, 24, 0), 397 GATE_CFG(GATE_PLL6, RCC_PLL6CFGR1, 8, 0), 398 GATE_CFG(GATE_PLL6_RDY, RCC_PLL6CFGR1, 24, 0), 399 GATE_CFG(GATE_PLL7, RCC_PLL7CFGR1, 8, 0), 400 GATE_CFG(GATE_PLL7_RDY, RCC_PLL7CFGR1, 24, 0), 401 GATE_CFG(GATE_PLL8, RCC_PLL8CFGR1, 8, 0), 402 GATE_CFG(GATE_PLL8_RDY, RCC_PLL8CFGR1, 24, 0), 403 GATE_CFG(GATE_PLL4_CKREFST, RCC_PLL4CFGR1, 28, 0), 404 GATE_CFG(GATE_PLL5_CKREFST, RCC_PLL5CFGR1, 28, 0), 405 GATE_CFG(GATE_PLL6_CKREFST, RCC_PLL6CFGR1, 28, 0), 406 GATE_CFG(GATE_PLL7_CKREFST, RCC_PLL7CFGR1, 28, 0), 407 GATE_CFG(GATE_PLL8_CKREFST, RCC_PLL8CFGR1, 28, 0), 408 GATE_CFG(GATE_C3, RCC_C3CFGR, 1, 0), 409 GATE_CFG(GATE_LPTIM3C3, RCC_C3CFGR, 16, 0), 410 GATE_CFG(GATE_LPTIM4C3, RCC_C3CFGR, 17, 0), 411 GATE_CFG(GATE_LPTIM5C3, RCC_C3CFGR, 18, 0), 412 GATE_CFG(GATE_SPI8C3, RCC_C3CFGR, 19, 0), 413 GATE_CFG(GATE_LPUART1C3, RCC_C3CFGR, 20, 0), 414 GATE_CFG(GATE_I2C8C3, RCC_C3CFGR, 21, 0), 415 GATE_CFG(GATE_ADF1C3, RCC_C3CFGR, 23, 0), 416 GATE_CFG(GATE_GPIOZC3, RCC_C3CFGR, 24, 0), 417 GATE_CFG(GATE_LPDMAC3, RCC_C3CFGR, 25, 0), 418 GATE_CFG(GATE_RTCC3, RCC_C3CFGR, 26, 0), 419 GATE_CFG(GATE_I3C4C3, RCC_C3CFGR, 27, 0), 420 GATE_CFG(GATE_MCO1, RCC_MCO1CFGR, 8, 0), 421 GATE_CFG(GATE_MCO2, RCC_MCO2CFGR, 8, 0), 422 GATE_CFG(GATE_HSI, RCC_OCENSETR, 0, 1), 423 GATE_CFG(GATE_HSEDIV2, RCC_OCENSETR, 5, 1), 424 GATE_CFG(GATE_HSE, RCC_OCENSETR, 8, 1), 425 GATE_CFG(GATE_HSI_RDY, RCC_OCRDYR, 0, 0), 426 GATE_CFG(GATE_HSE_RDY, RCC_OCRDYR, 8, 0), 427 GATE_CFG(GATE_APB1DIV_RDY, RCC_APB1DIVR, 31, 0), 428 GATE_CFG(GATE_APB2DIV_RDY, RCC_APB2DIVR, 31, 0), 429 GATE_CFG(GATE_APB3DIV_RDY, RCC_APB3DIVR, 31, 0), 430 GATE_CFG(GATE_APB4DIV_RDY, RCC_APB4DIVR, 31, 0), 431 GATE_CFG(GATE_APBDBGDIV_RDY, RCC_APBDBGDIVR, 31, 0), 432 GATE_CFG(GATE_TIMG1PRE_RDY, RCC_TIMG1PRER, 31, 0), 433 GATE_CFG(GATE_TIMG2PRE_RDY, RCC_TIMG2PRER, 31, 0), 434 GATE_CFG(GATE_LSMCUDIV_RDY, RCC_LSMCUDIVR, 31, 0), 435 GATE_CFG(GATE_DDRCP, RCC_DDRCPCFGR, 1, 0), 436 GATE_CFG(GATE_DDRCAPB, RCC_DDRCAPBCFGR, 1, 0), 437 GATE_CFG(GATE_DDRPHYCAPB, RCC_DDRPHYCAPBCFGR, 1, 0), 438 GATE_CFG(GATE_DDRPHYC, RCC_DDRPHYCCFGR, 1, 0), 439 GATE_CFG(GATE_DDRCFG, RCC_DDRCFGR, 1, 0), 440 GATE_CFG(GATE_SYSRAM, RCC_SYSRAMCFGR, 1, 0), 441 GATE_CFG(GATE_VDERAM, RCC_VDERAMCFGR, 1, 0), 442 GATE_CFG(GATE_SRAM1, RCC_SRAM1CFGR, 1, 0), 443 GATE_CFG(GATE_SRAM2, RCC_SRAM2CFGR, 1, 0), 444 GATE_CFG(GATE_RETRAM, RCC_RETRAMCFGR, 1, 0), 445 GATE_CFG(GATE_BKPSRAM, RCC_BKPSRAMCFGR, 1, 0), 446 GATE_CFG(GATE_LPSRAM1, RCC_LPSRAM1CFGR, 1, 0), 447 GATE_CFG(GATE_LPSRAM2, RCC_LPSRAM2CFGR, 1, 0), 448 GATE_CFG(GATE_LPSRAM3, RCC_LPSRAM3CFGR, 1, 0), 449 GATE_CFG(GATE_OSPI1, RCC_OSPI1CFGR, 1, 0), 450 GATE_CFG(GATE_OSPI2, RCC_OSPI2CFGR, 1, 0), 451 GATE_CFG(GATE_FMC, RCC_FMCCFGR, 1, 0), 452 GATE_CFG(GATE_DBG, RCC_DBGCFGR, 8, 0), 453 GATE_CFG(GATE_TRACE, RCC_DBGCFGR, 9, 0), 454 GATE_CFG(GATE_STM, RCC_STMCFGR, 1, 0), 455 GATE_CFG(GATE_ETR, RCC_ETRCFGR, 1, 0), 456 GATE_CFG(GATE_GPIOA, RCC_GPIOACFGR, 1, 0), 457 GATE_CFG(GATE_GPIOB, RCC_GPIOBCFGR, 1, 0), 458 GATE_CFG(GATE_GPIOC, RCC_GPIOCCFGR, 1, 0), 459 GATE_CFG(GATE_GPIOD, RCC_GPIODCFGR, 1, 0), 460 GATE_CFG(GATE_GPIOE, RCC_GPIOECFGR, 1, 0), 461 GATE_CFG(GATE_GPIOF, RCC_GPIOFCFGR, 1, 0), 462 GATE_CFG(GATE_GPIOG, RCC_GPIOGCFGR, 1, 0), 463 GATE_CFG(GATE_GPIOH, RCC_GPIOHCFGR, 1, 0), 464 GATE_CFG(GATE_GPIOI, RCC_GPIOICFGR, 1, 0), 465 GATE_CFG(GATE_GPIOJ, RCC_GPIOJCFGR, 1, 0), 466 GATE_CFG(GATE_GPIOK, RCC_GPIOKCFGR, 1, 0), 467 GATE_CFG(GATE_GPIOZ, RCC_GPIOZCFGR, 1, 0), 468 GATE_CFG(GATE_HPDMA1, RCC_HPDMA1CFGR, 1, 0), 469 GATE_CFG(GATE_HPDMA2, RCC_HPDMA2CFGR, 1, 0), 470 GATE_CFG(GATE_HPDMA3, RCC_HPDMA3CFGR, 1, 0), 471 GATE_CFG(GATE_LPDMA, RCC_LPDMACFGR, 1, 0), 472 GATE_CFG(GATE_HSEM, RCC_HSEMCFGR, 1, 0), 473 GATE_CFG(GATE_IPCC1, RCC_IPCC1CFGR, 1, 0), 474 GATE_CFG(GATE_IPCC2, RCC_IPCC2CFGR, 1, 0), 475 GATE_CFG(GATE_RTC, RCC_RTCCFGR, 1, 0), 476 GATE_CFG(GATE_SYSCPU1, RCC_SYSCPU1CFGR, 1, 0), 477 GATE_CFG(GATE_BSEC, RCC_BSECCFGR, 1, 0), 478 GATE_CFG(GATE_IS2M, RCC_IS2MCFGR, 1, 0), 479 GATE_CFG(GATE_HSIMON, RCC_HSIFMONCR, 15, 0), 480 GATE_CFG(GATE_TIM1, RCC_TIM1CFGR, 1, 0), 481 GATE_CFG(GATE_TIM2, RCC_TIM2CFGR, 1, 0), 482 GATE_CFG(GATE_TIM3, RCC_TIM3CFGR, 1, 0), 483 GATE_CFG(GATE_TIM4, RCC_TIM4CFGR, 1, 0), 484 GATE_CFG(GATE_TIM5, RCC_TIM5CFGR, 1, 0), 485 GATE_CFG(GATE_TIM6, RCC_TIM6CFGR, 1, 0), 486 GATE_CFG(GATE_TIM7, RCC_TIM7CFGR, 1, 0), 487 GATE_CFG(GATE_TIM8, RCC_TIM8CFGR, 1, 0), 488 GATE_CFG(GATE_TIM10, RCC_TIM10CFGR, 1, 0), 489 GATE_CFG(GATE_TIM11, RCC_TIM11CFGR, 1, 0), 490 GATE_CFG(GATE_TIM12, RCC_TIM12CFGR, 1, 0), 491 GATE_CFG(GATE_TIM13, RCC_TIM13CFGR, 1, 0), 492 GATE_CFG(GATE_TIM14, RCC_TIM14CFGR, 1, 0), 493 GATE_CFG(GATE_TIM15, RCC_TIM15CFGR, 1, 0), 494 GATE_CFG(GATE_TIM16, RCC_TIM16CFGR, 1, 0), 495 GATE_CFG(GATE_TIM17, RCC_TIM17CFGR, 1, 0), 496 GATE_CFG(GATE_TIM20, RCC_TIM20CFGR, 1, 0), 497 GATE_CFG(GATE_LPTIM1, RCC_LPTIM1CFGR, 1, 0), 498 GATE_CFG(GATE_LPTIM2, RCC_LPTIM2CFGR, 1, 0), 499 GATE_CFG(GATE_LPTIM3, RCC_LPTIM3CFGR, 1, 0), 500 GATE_CFG(GATE_LPTIM4, RCC_LPTIM4CFGR, 1, 0), 501 GATE_CFG(GATE_LPTIM5, RCC_LPTIM5CFGR, 1, 0), 502 GATE_CFG(GATE_SPI1, RCC_SPI1CFGR, 1, 0), 503 GATE_CFG(GATE_SPI2, RCC_SPI2CFGR, 1, 0), 504 GATE_CFG(GATE_SPI3, RCC_SPI3CFGR, 1, 0), 505 GATE_CFG(GATE_SPI4, RCC_SPI4CFGR, 1, 0), 506 GATE_CFG(GATE_SPI5, RCC_SPI5CFGR, 1, 0), 507 GATE_CFG(GATE_SPI6, RCC_SPI6CFGR, 1, 0), 508 GATE_CFG(GATE_SPI7, RCC_SPI7CFGR, 1, 0), 509 GATE_CFG(GATE_SPI8, RCC_SPI8CFGR, 1, 0), 510 GATE_CFG(GATE_SPDIFRX, RCC_SPDIFRXCFGR, 1, 0), 511 GATE_CFG(GATE_USART1, RCC_USART1CFGR, 1, 0), 512 GATE_CFG(GATE_USART2, RCC_USART2CFGR, 1, 0), 513 GATE_CFG(GATE_USART3, RCC_USART3CFGR, 1, 0), 514 GATE_CFG(GATE_UART4, RCC_UART4CFGR, 1, 0), 515 GATE_CFG(GATE_UART5, RCC_UART5CFGR, 1, 0), 516 GATE_CFG(GATE_USART6, RCC_USART6CFGR, 1, 0), 517 GATE_CFG(GATE_UART7, RCC_UART7CFGR, 1, 0), 518 GATE_CFG(GATE_UART8, RCC_UART8CFGR, 1, 0), 519 GATE_CFG(GATE_UART9, RCC_UART9CFGR, 1, 0), 520 GATE_CFG(GATE_LPUART1, RCC_LPUART1CFGR, 1, 0), 521 GATE_CFG(GATE_I2C1, RCC_I2C1CFGR, 1, 0), 522 GATE_CFG(GATE_I2C2, RCC_I2C2CFGR, 1, 0), 523 GATE_CFG(GATE_I2C3, RCC_I2C3CFGR, 1, 0), 524 GATE_CFG(GATE_I2C4, RCC_I2C4CFGR, 1, 0), 525 GATE_CFG(GATE_I2C5, RCC_I2C5CFGR, 1, 0), 526 GATE_CFG(GATE_I2C6, RCC_I2C6CFGR, 1, 0), 527 GATE_CFG(GATE_I2C7, RCC_I2C7CFGR, 1, 0), 528 GATE_CFG(GATE_I2C8, RCC_I2C8CFGR, 1, 0), 529 GATE_CFG(GATE_SAI1, RCC_SAI1CFGR, 1, 0), 530 GATE_CFG(GATE_SAI2, RCC_SAI2CFGR, 1, 0), 531 GATE_CFG(GATE_SAI3, RCC_SAI3CFGR, 1, 0), 532 GATE_CFG(GATE_SAI4, RCC_SAI4CFGR, 1, 0), 533 GATE_CFG(GATE_MDF1, RCC_MDF1CFGR, 1, 0), 534 GATE_CFG(GATE_ADF1, RCC_ADF1CFGR, 1, 0), 535 GATE_CFG(GATE_FDCAN, RCC_FDCANCFGR, 1, 0), 536 GATE_CFG(GATE_HDP, RCC_HDPCFGR, 1, 0), 537 GATE_CFG(GATE_ADC12, RCC_ADC12CFGR, 1, 0), 538 GATE_CFG(GATE_ADC3, RCC_ADC3CFGR, 1, 0), 539 GATE_CFG(GATE_ETH1MAC, RCC_ETH1CFGR, 1, 0), 540 GATE_CFG(GATE_ETH1STP, RCC_ETH1CFGR, 4, 0), 541 GATE_CFG(GATE_ETH1, RCC_ETH1CFGR, 5, 0), 542 GATE_CFG(GATE_ETH1TX, RCC_ETH1CFGR, 8, 0), 543 GATE_CFG(GATE_ETH1RX, RCC_ETH1CFGR, 10, 0), 544 GATE_CFG(GATE_ETH2MAC, RCC_ETH2CFGR, 1, 0), 545 GATE_CFG(GATE_ETH2STP, RCC_ETH2CFGR, 4, 0), 546 GATE_CFG(GATE_ETH2, RCC_ETH2CFGR, 5, 0), 547 GATE_CFG(GATE_ETH2TX, RCC_ETH2CFGR, 8, 0), 548 GATE_CFG(GATE_ETH2RX, RCC_ETH2CFGR, 10, 0), 549 GATE_CFG(GATE_USB2, RCC_USB2CFGR, 1, 0), 550 GATE_CFG(GATE_USB2PHY1, RCC_USB2PHY1CFGR, 1, 0), 551 GATE_CFG(GATE_USB2PHY2, RCC_USB2PHY2CFGR, 1, 0), 552 GATE_CFG(GATE_USB3DR, RCC_USB3DRCFGR, 1, 0), 553 GATE_CFG(GATE_USB3PCIEPHY, RCC_USB3PCIEPHYCFGR, 1, 0), 554 GATE_CFG(GATE_PCIE, RCC_PCIECFGR, 1, 0), 555 GATE_CFG(GATE_USBTC, RCC_USBTCCFGR, 1, 0), 556 GATE_CFG(GATE_ETHSWMAC, RCC_ETHSWCFGR, 1, 0), 557 GATE_CFG(GATE_ETHSW, RCC_ETHSWCFGR, 5, 0), 558 GATE_CFG(GATE_ETHSWREF, RCC_ETHSWCFGR, 21, 0), 559 GATE_CFG(GATE_STGEN, RCC_STGENCFGR, 1, 0), 560 GATE_CFG(GATE_SDMMC1, RCC_SDMMC1CFGR, 1, 0), 561 GATE_CFG(GATE_SDMMC2, RCC_SDMMC2CFGR, 1, 0), 562 GATE_CFG(GATE_SDMMC3, RCC_SDMMC3CFGR, 1, 0), 563 GATE_CFG(GATE_GPU, RCC_GPUCFGR, 1, 0), 564 GATE_CFG(GATE_LTDC, RCC_LTDCCFGR, 1, 0), 565 GATE_CFG(GATE_DSI, RCC_DSICFGR, 1, 0), 566 GATE_CFG(GATE_LVDS, RCC_LVDSCFGR, 1, 0), 567 GATE_CFG(GATE_CSI, RCC_CSICFGR, 1, 0), 568 GATE_CFG(GATE_DCMIPP, RCC_DCMIPPCFGR, 1, 0), 569 GATE_CFG(GATE_CCI, RCC_CCICFGR, 1, 0), 570 GATE_CFG(GATE_VDEC, RCC_VDECCFGR, 1, 0), 571 GATE_CFG(GATE_VENC, RCC_VENCCFGR, 1, 0), 572 GATE_CFG(GATE_RNG, RCC_RNGCFGR, 1, 0), 573 GATE_CFG(GATE_PKA, RCC_PKACFGR, 1, 0), 574 GATE_CFG(GATE_SAES, RCC_SAESCFGR, 1, 0), 575 GATE_CFG(GATE_HASH, RCC_HASHCFGR, 1, 0), 576 GATE_CFG(GATE_CRYP1, RCC_CRYP1CFGR, 1, 0), 577 GATE_CFG(GATE_CRYP2, RCC_CRYP2CFGR, 1, 0), 578 GATE_CFG(GATE_IWDG1, RCC_IWDG1CFGR, 1, 0), 579 GATE_CFG(GATE_IWDG2, RCC_IWDG2CFGR, 1, 0), 580 GATE_CFG(GATE_IWDG3, RCC_IWDG3CFGR, 1, 0), 581 GATE_CFG(GATE_IWDG4, RCC_IWDG4CFGR, 1, 0), 582 GATE_CFG(GATE_IWDG5, RCC_IWDG5CFGR, 1, 0), 583 GATE_CFG(GATE_WWDG1, RCC_WWDG1CFGR, 1, 0), 584 GATE_CFG(GATE_WWDG2, RCC_WWDG2CFGR, 1, 0), 585 GATE_CFG(GATE_VREF, RCC_VREFCFGR, 1, 0), 586 GATE_CFG(GATE_DTS, RCC_DTSCFGR, 1, 0), 587 GATE_CFG(GATE_CRC, RCC_CRCCFGR, 1, 0), 588 GATE_CFG(GATE_SERC, RCC_SERCCFGR, 1, 0), 589 GATE_CFG(GATE_OSPIIOM, RCC_OSPIIOMCFGR, 1, 0), 590 GATE_CFG(GATE_GICV2M, RCC_GICV2MCFGR, 1, 0), 591 GATE_CFG(GATE_I3C1, RCC_I3C1CFGR, 1, 0), 592 GATE_CFG(GATE_I3C2, RCC_I3C2CFGR, 1, 0), 593 GATE_CFG(GATE_I3C3, RCC_I3C3CFGR, 1, 0), 594 GATE_CFG(GATE_I3C4, RCC_I3C4CFGR, 1, 0), 595 }; 596 597 /* 598 * MUX CONFIG 599 */ 600 601 #define _MUX_CFG(_id, _offset, _shift, _width, _rdy)\ 602 [(_id)] = {\ 603 .offset = (_offset),\ 604 .shift = (_shift),\ 605 .width = (_width),\ 606 .ready = (_rdy),\ 607 } 608 609 static const struct mux_cfg parent_mp25[MUX_NB] = { 610 _MUX_CFG(MUX_MUXSEL0, RCC_MUXSELCFGR, 0, 2, GATE_PLL4_CKREFST), 611 _MUX_CFG(MUX_MUXSEL1, RCC_MUXSELCFGR, 4, 2, GATE_PLL5_CKREFST), 612 _MUX_CFG(MUX_MUXSEL2, RCC_MUXSELCFGR, 8, 2, GATE_PLL6_CKREFST), 613 _MUX_CFG(MUX_MUXSEL3, RCC_MUXSELCFGR, 12, 2, GATE_PLL7_CKREFST), 614 _MUX_CFG(MUX_MUXSEL4, RCC_MUXSELCFGR, 16, 2, GATE_PLL8_CKREFST), 615 _MUX_CFG(MUX_MUXSEL5, RCC_MUXSELCFGR, 20, 2, MUX_NO_RDY), 616 _MUX_CFG(MUX_MUXSEL6, RCC_MUXSELCFGR, 24, 2, MUX_NO_RDY), 617 _MUX_CFG(MUX_MUXSEL7, RCC_MUXSELCFGR, 28, 2, MUX_NO_RDY), 618 _MUX_CFG(MUX_XBARSEL, RCC_XBAR0CFGR, 0, 4, MUX_NO_RDY), 619 _MUX_CFG(MUX_RTC, RCC_BDCR, 16, 2, MUX_NO_RDY), 620 _MUX_CFG(MUX_D3PER, RCC_D3DCR, 16, 2, MUX_NO_RDY), 621 _MUX_CFG(MUX_MCO1, RCC_MCO1CFGR, 0, 1, MUX_NO_RDY), 622 _MUX_CFG(MUX_MCO2, RCC_MCO2CFGR, 0, 1, MUX_NO_RDY), 623 _MUX_CFG(MUX_ADC12, RCC_ADC12CFGR, 12, 1, MUX_NO_RDY), 624 _MUX_CFG(MUX_ADC3, RCC_ADC3CFGR, 12, 2, MUX_NO_RDY), 625 _MUX_CFG(MUX_USB2PHY1, RCC_USB2PHY1CFGR, 15, 1, MUX_NO_RDY), 626 _MUX_CFG(MUX_USB2PHY2, RCC_USB2PHY2CFGR, 15, 1, MUX_NO_RDY), 627 _MUX_CFG(MUX_USB3PCIEPHY, RCC_USB3PCIEPHYCFGR, 15, 1, MUX_NO_RDY), 628 _MUX_CFG(MUX_DSIBLANE, RCC_DSICFGR, 12, 1, MUX_NO_RDY), 629 _MUX_CFG(MUX_DSIPHY, RCC_DSICFGR, 15, 1, MUX_NO_RDY), 630 _MUX_CFG(MUX_LVDSPHY, RCC_LVDSCFGR, 15, 1, MUX_NO_RDY), 631 _MUX_CFG(MUX_DTS, RCC_DTSCFGR, 12, 2, MUX_NO_RDY), 632 }; 633 634 /* 635 * DIV CONFIG 636 */ 637 638 static const struct div_table_cfg apb_div_table[] = { 639 { .val = 0, .div = 1 }, 640 { .val = 1, .div = 2 }, 641 { .val = 2, .div = 4 }, 642 { .val = 3, .div = 8 }, 643 { .val = 4, .div = 16 }, 644 { .val = 5, .div = 16 }, 645 { .val = 6, .div = 16 }, 646 { .val = 7, .div = 16 }, 647 /* .div = 0 termination cell */ 648 { } 649 }; 650 651 #define _DIV_CFG(_id, _offset, _shift, _width, _flags, _table, _ready)\ 652 [(_id)] = {\ 653 .offset = (_offset),\ 654 .shift = (_shift),\ 655 .width = (_width),\ 656 .flags = (_flags),\ 657 .table = (_table),\ 658 .ready = (_ready),\ 659 } 660 661 static const struct div_cfg dividers_mp25[DIV_NB] = { 662 _DIV_CFG(DIV_RTC, RCC_RTCDIVR, 0, 6, 0, NULL, DIV_NO_RDY), 663 _DIV_CFG(DIV_APB1, RCC_APB1DIVR, 0, 3, 0, apb_div_table, 664 GATE_APB1DIV_RDY), 665 _DIV_CFG(DIV_APB2, RCC_APB2DIVR, 0, 3, 0, apb_div_table, 666 GATE_APB2DIV_RDY), 667 _DIV_CFG(DIV_APB3, RCC_APB3DIVR, 0, 3, 0, apb_div_table, 668 GATE_APB3DIV_RDY), 669 _DIV_CFG(DIV_APB4, RCC_APB4DIVR, 0, 3, 0, apb_div_table, 670 GATE_APB4DIV_RDY), 671 _DIV_CFG(DIV_APBDBG, RCC_APBDBGDIVR, 0, 3, 0, apb_div_table, 672 GATE_APBDBGDIV_RDY), 673 _DIV_CFG(DIV_LSMCU, RCC_LSMCUDIVR, 0, 1, 0, NULL, GATE_LSMCUDIV_RDY), 674 }; 675 676 enum stm32_osc { 677 OSC_HSI, 678 OSC_HSE, 679 OSC_MSI, 680 OSC_LSI, 681 OSC_LSE, 682 NB_OSCILLATOR 683 }; 684 685 struct clk_stm32_bypass { 686 uint16_t offset; 687 uint8_t bit_byp; 688 uint8_t bit_digbyp; 689 }; 690 691 struct clk_stm32_css { 692 uint16_t offset; 693 uint8_t bit_css; 694 }; 695 696 struct clk_stm32_drive { 697 uint16_t offset; 698 uint8_t drv_shift; 699 uint8_t drv_width; 700 uint8_t drv_default; 701 }; 702 703 struct clk_oscillator_data { 704 const char *name; 705 unsigned long frequency; 706 uint16_t gate_id; 707 struct clk_stm32_bypass *bypass; 708 struct clk_stm32_css *css; 709 struct clk_stm32_drive *drive; 710 }; 711 712 #define BYPASS(_offset, _bit_byp, _bit_digbyp) \ 713 (&(struct clk_stm32_bypass){\ 714 .offset = (_offset),\ 715 .bit_byp = (_bit_byp),\ 716 .bit_digbyp = (_bit_digbyp),\ 717 }) 718 719 #define CSS(_offset, _bit_css) \ 720 (&(struct clk_stm32_css){\ 721 .offset = (_offset),\ 722 .bit_css = (_bit_css),\ 723 }) 724 725 #define DRIVE(_offset, _shift, _width, _default) \ 726 (&(struct clk_stm32_drive){\ 727 .offset = (_offset),\ 728 .drv_shift = (_shift),\ 729 .drv_width = (_width),\ 730 .drv_default = (_default),\ 731 }) 732 733 #define OSCILLATOR(idx_osc, _name, _gate_id, _bypass, _css, _drive) \ 734 [(idx_osc)] = (struct clk_oscillator_data){\ 735 .name = (_name),\ 736 .gate_id = (_gate_id),\ 737 .bypass = (_bypass),\ 738 .css = (_css),\ 739 .drive = (_drive),\ 740 } 741 742 static struct clk_oscillator_data stm32mp25_osc_data[NB_OSCILLATOR] = { 743 OSCILLATOR(OSC_HSI, "clk-hsi", GATE_HSI, 744 NULL, NULL, NULL), 745 746 OSCILLATOR(OSC_LSI, "clk-lsi", GATE_LSI, 747 NULL, NULL, NULL), 748 749 OSCILLATOR(OSC_MSI, "clk-msi", GATE_MSI, 750 NULL, NULL, NULL), 751 752 OSCILLATOR(OSC_LSE, "clk-lse", GATE_LSE, 753 BYPASS(RCC_BDCR, RCC_BDCR_LSEBYP_BIT, 754 RCC_BDCR_LSEDIGBYP_BIT), 755 CSS(RCC_BDCR, RCC_BDCR_LSECSSON_BIT), 756 DRIVE(RCC_BDCR, RCC_BDCR_LSEDRV_SHIFT, 757 RCC_BDCR_LSEDRV_WIDTH, LSEDRV_MEDIUM_HIGH)), 758 759 OSCILLATOR(OSC_HSE, "clk-hse", GATE_HSE, 760 BYPASS(RCC_OCENSETR, RCC_OCENSETR_HSEBYP_BIT, 761 RCC_OCENSETR_HSEDIGBYP_BIT), 762 CSS(RCC_OCENSETR, RCC_OCENSETR_HSECSSON_BIT), 763 NULL), 764 }; 765 766 static struct clk_oscillator_data *clk_oscillator_get_data(unsigned int osc_id) 767 { 768 assert(osc_id < ARRAY_SIZE(stm32mp25_osc_data)); 769 770 return &stm32mp25_osc_data[osc_id]; 771 } 772 773 static unsigned long clk_stm32_get_rate_oscillator(unsigned int osc_id) 774 { 775 struct clk_stm32_priv *priv = clk_stm32_get_priv(); 776 struct stm32_clk_platdata *pdata = priv->pdata; 777 struct stm32_osci_dt_cfg *osci = &pdata->osci[osc_id]; 778 779 return osci->freq; 780 } 781 782 static unsigned long clk_stm32_pll_get_oscillator_rate(unsigned int sel) 783 { 784 unsigned int osc[] = { OSC_HSI, OSC_HSE, OSC_MSI }; 785 786 assert(sel < ARRAY_SIZE(osc)); 787 788 return clk_stm32_get_rate_oscillator(osc[sel]); 789 } 790 791 static void clk_oscillator_set_bypass(struct clk_stm32_priv *priv, 792 struct clk_oscillator_data *osc_data, 793 bool digbyp, bool bypass) 794 { 795 struct clk_stm32_bypass *bypass_data = osc_data->bypass; 796 uintptr_t address = 0; 797 798 if (!bypass_data) 799 return; 800 801 address = priv->base + bypass_data->offset; 802 803 if (digbyp) 804 io_setbits32(address, BIT(bypass_data->bit_digbyp)); 805 806 if (bypass || digbyp) 807 io_setbits32(address, BIT(bypass_data->bit_byp)); 808 } 809 810 static void clk_oscillator_set_css(struct clk_stm32_priv *priv, 811 struct clk_oscillator_data *osc_data, 812 bool css) 813 { 814 struct clk_stm32_css *css_data = osc_data->css; 815 816 if (css_data && css) 817 io_setbits32(priv->base + css_data->offset, 818 BIT(css_data->bit_css)); 819 } 820 821 static void clk_oscillator_set_drive(struct clk_stm32_priv *priv, 822 struct clk_oscillator_data *osc_data, 823 uint8_t lsedrv) 824 { 825 struct clk_stm32_drive *drive_data = osc_data->drive; 826 uintptr_t address = 0; 827 uint32_t mask = 0; 828 uint32_t value = 0; 829 830 if (!drive_data) 831 return; 832 833 address = priv->base + drive_data->offset; 834 835 mask = SHIFT_U32(BIT(drive_data->drv_width) - 1, drive_data->drv_shift); 836 837 /* 838 * Warning: not recommended to switch directly from "high drive" 839 * to "medium low drive", and vice-versa. 840 */ 841 value = (io_read32(address) & mask) >> drive_data->drv_shift; 842 843 while (value != lsedrv) { 844 if (value > lsedrv) 845 value--; 846 else 847 value++; 848 849 io_clrsetbits32(address, mask, 850 SHIFT_U32(value, drive_data->drv_shift)); 851 } 852 } 853 854 static void stm32_enable_oscillator_hse(struct clk_stm32_priv *priv, 855 struct stm32_clk_platdata *pdata) 856 { 857 struct clk_oscillator_data *osc_data = clk_oscillator_get_data(OSC_HSE); 858 struct stm32_osci_dt_cfg *osci = &pdata->osci[OSC_HSE]; 859 860 if (!osci->freq) 861 return; 862 863 clk_oscillator_set_bypass(priv, osc_data, osci->digbyp, osci->bypass); 864 865 /* Enable clock and wait ready bit */ 866 if (stm32_gate_rdy_enable(osc_data->gate_id)) 867 panic("timeout to enable hse clock"); 868 869 clk_oscillator_set_css(priv, osc_data, osci->css); 870 } 871 872 static void stm32_enable_oscillator_lse(struct clk_stm32_priv *priv, 873 struct stm32_clk_platdata *pdata) 874 { 875 struct clk_oscillator_data *osc_data = clk_oscillator_get_data(OSC_LSE); 876 struct stm32_osci_dt_cfg *osci = &pdata->osci[OSC_LSE]; 877 878 if (!osci->freq) 879 return; 880 881 if (stm32_gate_is_enabled(osc_data->gate_id)) 882 return; 883 884 clk_oscillator_set_bypass(priv, osc_data, osci->digbyp, osci->bypass); 885 886 clk_oscillator_set_drive(priv, osc_data, osci->drive); 887 888 /* Enable LSE clock, but don't wait ready bit */ 889 stm32_gate_enable(osc_data->gate_id); 890 } 891 892 static void stm32_enable_oscillator_lsi(struct clk_stm32_priv *priv __unused, 893 struct stm32_clk_platdata *pdata) 894 { 895 struct clk_oscillator_data *osc_data = clk_oscillator_get_data(OSC_LSI); 896 struct stm32_osci_dt_cfg *osci = &pdata->osci[OSC_LSI]; 897 898 if (!osci->freq) 899 return; 900 901 /* Enable clock and wait ready bit */ 902 if (stm32_gate_rdy_enable(osc_data->gate_id)) 903 panic("timeout to enable lsi clock"); 904 } 905 906 static TEE_Result clk_stm32_osc_msi_set_rate(struct clk_stm32_priv *priv, 907 unsigned long rate) 908 { 909 uintptr_t address = priv->base + RCC_BDCR; 910 uint32_t mask = RCC_BDCR_MSIFREQSEL; 911 912 switch (rate) { 913 case RCC_4_MHZ: 914 io_clrbits32_stm32shregs(address, mask); 915 break; 916 case RCC_16_MHZ: 917 io_setbits32_stm32shregs(address, mask); 918 break; 919 default: 920 return TEE_ERROR_GENERIC; 921 } 922 923 return TEE_SUCCESS; 924 } 925 926 static void stm32_enable_oscillator_msi(struct clk_stm32_priv *priv, 927 struct stm32_clk_platdata *pdata) 928 { 929 struct clk_oscillator_data *osc_data = clk_oscillator_get_data(OSC_MSI); 930 struct stm32_osci_dt_cfg *osci = &pdata->osci[OSC_MSI]; 931 932 if (!osci->freq) 933 return; 934 935 if (clk_stm32_osc_msi_set_rate(priv, osci->freq) != TEE_SUCCESS) { 936 EMSG("invalid rate %ld Hz for MSI ! (4000000 or 16000000 only)", 937 osci->freq); 938 panic(); 939 } 940 941 /* Enable clock and wait ready bit */ 942 if (stm32_gate_rdy_enable(osc_data->gate_id)) 943 panic("timeout to enable msi clock"); 944 } 945 946 static void stm32_clk_oscillators_lse_set_css(struct clk_stm32_priv *priv, 947 struct stm32_clk_platdata *pdata) 948 949 { 950 struct clk_oscillator_data *osc_data = clk_oscillator_get_data(OSC_LSE); 951 struct stm32_osci_dt_cfg *osci = &pdata->osci[OSC_LSE]; 952 953 clk_oscillator_set_css(priv, osc_data, osci->css); 954 } 955 956 static int 957 stm32_clk_oscillators_wait_lse_ready(struct clk_stm32_priv *priv __unused, 958 struct stm32_clk_platdata *pdata) 959 { 960 struct clk_oscillator_data *osc_data = clk_oscillator_get_data(OSC_LSE); 961 struct stm32_osci_dt_cfg *osci = &pdata->osci[OSC_LSE]; 962 int ret = 0; 963 964 if (osci->freq && stm32_gate_wait_ready(osc_data->gate_id, true)) 965 ret = -1; 966 967 return ret; 968 } 969 970 static void stm32_clk_oscillators_enable(struct clk_stm32_priv *priv, 971 struct stm32_clk_platdata *pdata) 972 { 973 stm32_enable_oscillator_hse(priv, pdata); 974 stm32_enable_oscillator_lse(priv, pdata); 975 stm32_enable_oscillator_lsi(priv, pdata); 976 stm32_enable_oscillator_msi(priv, pdata); 977 } 978 979 enum stm32_pll_id { 980 PLL1_ID, 981 PLL2_ID, 982 PLL3_ID, 983 PLL4_ID, 984 PLL5_ID, 985 PLL6_ID, 986 PLL7_ID, 987 PLL8_ID, 988 PLL_NB 989 }; 990 991 /* PLL configuration registers offsets from RCC_PLLxCFGR1 */ 992 #define RCC_OFFSET_PLLXCFGR1 0x00 993 #define RCC_OFFSET_PLLXCFGR2 0x04 994 #define RCC_OFFSET_PLLXCFGR3 0x08 995 #define RCC_OFFSET_PLLXCFGR4 0x0C 996 #define RCC_OFFSET_PLLXCFGR5 0x10 997 #define RCC_OFFSET_PLLXCFGR6 0x18 998 #define RCC_OFFSET_PLLXCFGR7 0x1C 999 1000 struct stm32_clk_pll { 1001 uint16_t gate_id; 1002 uint16_t mux_id; 1003 uint16_t reg_pllxcfgr1; 1004 }; 1005 1006 #define CLK_PLL_CFG(_idx, _gate_id, _mux_id, _reg)\ 1007 [(_idx)] = {\ 1008 .gate_id = (_gate_id),\ 1009 .mux_id = (_mux_id),\ 1010 .reg_pllxcfgr1 = (_reg),\ 1011 } 1012 1013 static const struct stm32_clk_pll stm32mp25_clk_pll[PLL_NB] = { 1014 CLK_PLL_CFG(PLL1_ID, GATE_PLL1, MUX_MUXSEL5, 0), 1015 CLK_PLL_CFG(PLL2_ID, GATE_PLL2, MUX_MUXSEL6, RCC_PLL2CFGR1), 1016 CLK_PLL_CFG(PLL3_ID, GATE_PLL3, MUX_MUXSEL7, RCC_PLL3CFGR1), 1017 CLK_PLL_CFG(PLL4_ID, GATE_PLL4, MUX_MUXSEL0, RCC_PLL4CFGR1), 1018 CLK_PLL_CFG(PLL5_ID, GATE_PLL5, MUX_MUXSEL1, RCC_PLL5CFGR1), 1019 CLK_PLL_CFG(PLL6_ID, GATE_PLL6, MUX_MUXSEL2, RCC_PLL6CFGR1), 1020 CLK_PLL_CFG(PLL7_ID, GATE_PLL7, MUX_MUXSEL3, RCC_PLL7CFGR1), 1021 CLK_PLL_CFG(PLL8_ID, GATE_PLL8, MUX_MUXSEL4, RCC_PLL8CFGR1), 1022 }; 1023 1024 static const struct stm32_clk_pll *clk_stm32_pll_data(unsigned int idx) 1025 { 1026 assert(idx < ARRAY_SIZE(stm32mp25_clk_pll)); 1027 1028 return &stm32mp25_clk_pll[idx]; 1029 } 1030 1031 static int stm32_clk_parse_oscillator_fdt(const void *fdt, int node, 1032 const char *name, 1033 struct stm32_osci_dt_cfg *osci) 1034 { 1035 int subnode = 0; 1036 1037 /* default value when oscillator is not found */ 1038 osci->freq = 0; 1039 1040 fdt_for_each_subnode(subnode, fdt, node) { 1041 const char *cchar = NULL; 1042 const fdt32_t *cuint = NULL; 1043 int ret = 0; 1044 1045 cchar = fdt_get_name(fdt, subnode, &ret); 1046 if (!cchar) 1047 return -1; 1048 1049 if (strncmp(cchar, name, (size_t)ret)) 1050 continue; 1051 1052 if (fdt_get_status(fdt, subnode) == DT_STATUS_DISABLED) 1053 return 0; 1054 1055 cuint = fdt_getprop(fdt, subnode, "clock-frequency", &ret); 1056 if (!cuint) 1057 return -1; 1058 1059 osci->freq = fdt32_to_cpu(*cuint); 1060 1061 if (fdt_getprop(fdt, subnode, "st,bypass", NULL)) 1062 osci->bypass = true; 1063 1064 if (fdt_getprop(fdt, subnode, "st,digbypass", NULL)) 1065 osci->digbyp = true; 1066 1067 if (fdt_getprop(fdt, subnode, "st,css", NULL)) 1068 osci->css = true; 1069 1070 osci->drive = fdt_read_uint32_default(fdt, subnode, "st,drive", 1071 LSEDRV_MEDIUM_HIGH); 1072 1073 return 0; 1074 } 1075 1076 return 0; 1077 } 1078 1079 static const char *stm32_clk_get_oscillator_name(enum stm32_osc id) 1080 { 1081 if (id < NB_OSCILLATOR) 1082 return stm32mp25_osc_data[id].name; 1083 1084 return NULL; 1085 } 1086 1087 static int stm32_clk_parse_fdt_all_oscillator(const void *fdt, 1088 int node __unused, 1089 struct stm32_clk_platdata *pdata) 1090 { 1091 int fdt_err = 0; 1092 size_t i = 0; 1093 int osc_node = 0; 1094 1095 osc_node = fdt_path_offset(fdt, "/clocks"); 1096 if (osc_node < 0) 1097 return -FDT_ERR_NOTFOUND; 1098 1099 for (i = 0; i < pdata->nosci; i++) { 1100 const char *name = NULL; 1101 1102 name = stm32_clk_get_oscillator_name((enum stm32_osc)i); 1103 if (!name) 1104 continue; 1105 1106 fdt_err = stm32_clk_parse_oscillator_fdt(fdt, osc_node, name, 1107 &pdata->osci[i]); 1108 if (fdt_err < 0) 1109 panic(); 1110 } 1111 1112 return 0; 1113 } 1114 1115 static int clk_stm32_parse_pll_fdt(const void *fdt, int subnode, 1116 struct stm32_pll_dt_cfg *pll) 1117 { 1118 const fdt32_t *cuint = NULL; 1119 int subnode_pll = 0; 1120 int err = 0; 1121 1122 cuint = fdt_getprop(fdt, subnode, "st,pll", NULL); 1123 if (!cuint) 1124 return 0; 1125 1126 subnode_pll = fdt_node_offset_by_phandle(fdt, fdt32_to_cpu(*cuint)); 1127 if (subnode_pll < 0) 1128 return -FDT_ERR_NOTFOUND; 1129 1130 if (fdt_read_uint32_array(fdt, subnode_pll, "cfg", pll->cfg, PLLCFG_NB)) 1131 panic("cfg property is mandatory"); 1132 1133 err = fdt_read_uint32_array(fdt, subnode_pll, "csg", pll->csg, 1134 PLLCSG_NB); 1135 1136 pll->csg_enabled = (err == 0); 1137 1138 if (err == -FDT_ERR_NOTFOUND) 1139 err = 0; 1140 1141 if (err) 1142 return err; 1143 1144 pll->enabled = true; 1145 1146 pll->frac = fdt_read_uint32_default(fdt, subnode_pll, "frac", 0); 1147 1148 if (fdt_read_uint32(fdt, subnode_pll, "src", &pll->src)) 1149 panic("src property is mandatory"); 1150 1151 return 0; 1152 } 1153 1154 #define RCC_PLL_NAME_SIZE 20 1155 1156 static int stm32_clk_parse_fdt_all_pll(const void *fdt, int node, 1157 struct stm32_clk_platdata *pdata) 1158 { 1159 unsigned int i = 0; 1160 1161 for (i = 0; i < pdata->npll; i++) { 1162 struct stm32_pll_dt_cfg *pll = pdata->pll + i; 1163 char name[RCC_PLL_NAME_SIZE] = { }; 1164 int subnode = 0; 1165 1166 snprintf(name, sizeof(name), "st,pll-%u", i + 1); 1167 1168 subnode = fdt_subnode_offset(fdt, node, name); 1169 if (subnode < 0) 1170 continue; 1171 1172 if (clk_stm32_parse_pll_fdt(fdt, subnode, pll)) 1173 panic(); 1174 } 1175 1176 return 0; 1177 } 1178 1179 static int stm32_clk_parse_fdt_opp(const void *fdt, int node, 1180 const char *opp_name, 1181 struct stm32_clk_opp_cfg *opp_cfg) 1182 { 1183 int subnode = 0; 1184 int nb_opp = 0; 1185 int ret = 0; 1186 1187 node = fdt_subnode_offset(fdt, node, opp_name); 1188 if (node == -FDT_ERR_NOTFOUND) 1189 return 0; 1190 1191 if (node < 0) 1192 return node; 1193 1194 fdt_for_each_subnode(subnode, fdt, node) { 1195 assert(nb_opp <= MAX_OPP); 1196 1197 if (fdt_read_uint32(fdt, subnode, "hz", &opp_cfg->frq)) 1198 panic("hz property is mandatory"); 1199 1200 if (fdt_read_uint32(fdt, subnode, "st,clksrc", &opp_cfg->src)) 1201 panic("st,clksrc property is mandatory"); 1202 1203 ret = clk_stm32_parse_pll_fdt(fdt, subnode, &opp_cfg->pll_cfg); 1204 if (ret < 0) 1205 return ret; 1206 1207 opp_cfg++; 1208 nb_opp++; 1209 } 1210 1211 return 0; 1212 } 1213 1214 static int stm32_clk_parse_fdt_all_opp(const void *fdt, int node, 1215 struct stm32_clk_platdata *pdata) 1216 { 1217 struct stm32_clk_opp_dt_cfg *opp = pdata->opp; 1218 1219 node = fdt_subnode_offset(fdt, node, "st,clk_opp"); 1220 if (node == -FDT_ERR_NOTFOUND) 1221 return 0; 1222 1223 if (node < 0) 1224 return node; 1225 1226 return stm32_clk_parse_fdt_opp(fdt, node, "st,ck_cpu1", opp->cpu1_opp); 1227 } 1228 1229 static int stm32_clk_parse_fdt(const void *fdt, int node, 1230 struct stm32_clk_platdata *pdata) 1231 { 1232 const fdt32_t *cuint = NULL; 1233 unsigned int i = 0; 1234 int lenp = 0; 1235 int err = 0; 1236 1237 err = stm32_clk_parse_fdt_all_oscillator(fdt, node, pdata); 1238 if (err) 1239 return err; 1240 1241 err = stm32_clk_parse_fdt_all_pll(fdt, node, pdata); 1242 if (err) 1243 return err; 1244 1245 err = stm32_clk_parse_fdt_all_opp(fdt, node, pdata); 1246 if (err) 1247 return err; 1248 1249 err = clk_stm32_parse_fdt_by_name(fdt, node, "st,busclk", 1250 pdata->busclk, 1251 &pdata->nbusclk); 1252 if (err) 1253 return err; 1254 1255 err = clk_stm32_parse_fdt_by_name(fdt, node, "st,flexgen", 1256 pdata->flexgen, 1257 &pdata->nflexgen); 1258 if (err) 1259 return err; 1260 1261 err = clk_stm32_parse_fdt_by_name(fdt, node, "st,kerclk", 1262 pdata->kernelclk, 1263 &pdata->nkernelclk); 1264 if (err) 1265 return err; 1266 1267 pdata->c1msrd = fdt_read_uint32_default(fdt, node, "st,c1msrd", 0); 1268 1269 if (fdt_getprop(fdt, node, "st,safe_rst", NULL)) 1270 pdata->safe_rst = true; 1271 1272 pdata->rcc_base = stm32_rcc_base(); 1273 1274 cuint = fdt_getprop(fdt, node, "st,protreg", &lenp); 1275 if (lenp < 0) { 1276 if (lenp != -FDT_ERR_NOTFOUND) 1277 return lenp; 1278 1279 lenp = 0; 1280 DMSG("No RIF configuration available"); 1281 } 1282 1283 pdata->nb_res = (unsigned int)(lenp / sizeof(uint32_t)); 1284 1285 assert(pdata->nb_res <= RCC_NB_RIF_RES); 1286 1287 pdata->conf_data.cid_confs = calloc(RCC_NB_RIF_RES, sizeof(uint32_t)); 1288 pdata->conf_data.sec_conf = calloc(RCC_NB_CONFS, sizeof(uint32_t)); 1289 pdata->conf_data.priv_conf = calloc(RCC_NB_CONFS, sizeof(uint32_t)); 1290 pdata->conf_data.lock_conf = calloc(RCC_NB_CONFS, sizeof(uint32_t)); 1291 pdata->conf_data.access_mask = calloc(RCC_NB_CONFS, sizeof(uint32_t)); 1292 if (!pdata->conf_data.cid_confs || !pdata->conf_data.sec_conf || 1293 !pdata->conf_data.priv_conf || !pdata->conf_data.access_mask || 1294 !pdata->conf_data.lock_conf) 1295 panic("Missing memory capacity for RCC RIF configuration"); 1296 1297 for (i = 0; i < pdata->nb_res; i++) 1298 stm32_rif_parse_cfg(fdt32_to_cpu(cuint[i]), &pdata->conf_data, 1299 RCC_NB_RIF_RES); 1300 1301 return 0; 1302 } 1303 1304 static void stm32mp2_a35_ss_on_bypass(void) 1305 { 1306 uint64_t timeout = 0; 1307 uint32_t chgclkreq = stm32mp_syscfg_read(A35SS_SSC_CHGCLKREQ); 1308 1309 if (chgclkreq & A35SS_SSC_CHGCLKREQ_ARM_CHGCLKACK_MASK) { 1310 /* Nothing to do, clock source is already set on bypass clock */ 1311 return; 1312 } 1313 1314 /* 1315 * for clkext2f frequency at 400MHZ, the default flexgen63 config, 1316 * divider by 2 is required with ARM_DIVSEL=0 1317 */ 1318 if (chgclkreq & A35SS_SSC_CHGCLKREQ_ARM_DIVSEL) { 1319 stm32mp_syscfg_write(A35SS_SSC_CHGCLKREQ, 1320 0U, 1321 A35SS_SSC_CHGCLKREQ_ARM_DIVSEL); 1322 timeout = timeout_init_us(CLKSRC_TIMEOUT); 1323 while (!timeout_elapsed(timeout)) 1324 if (!(stm32mp_syscfg_read(A35SS_SSC_CHGCLKREQ) & 1325 A35SS_SSC_CHGCLKREQ_ARM_DIVSELACK)) 1326 break; 1327 if (stm32mp_syscfg_read(A35SS_SSC_CHGCLKREQ) & 1328 A35SS_SSC_CHGCLKREQ_ARM_DIVSELACK) 1329 panic("Cannot set div on A35 bypass clock"); 1330 } 1331 1332 stm32mp_syscfg_write(A35SS_SSC_CHGCLKREQ, 1333 A35SS_SSC_CHGCLKREQ_ARM_CHGCLKREQ_EN, 1334 A35SS_SSC_CHGCLKREQ_ARM_CHGCLKREQ_MASK); 1335 1336 timeout = timeout_init_us(CLKSRC_TIMEOUT); 1337 while (!timeout_elapsed(timeout)) 1338 if (stm32mp_syscfg_read(A35SS_SSC_CHGCLKREQ) & 1339 A35SS_SSC_CHGCLKREQ_ARM_CHGCLKACK_MASK) 1340 break; 1341 1342 if (!(stm32mp_syscfg_read(A35SS_SSC_CHGCLKREQ) & 1343 A35SS_SSC_CHGCLKREQ_ARM_CHGCLKACK_MASK)) 1344 panic("Cannot switch A35 to bypass clock"); 1345 1346 stm32mp_syscfg_write(A35SS_SSC_PLL_EN, 1347 0, 1348 A35SS_SSC_PLL_ENABLE_NRESET_SWPLL_FF_MASK); 1349 } 1350 1351 static void stm32mp2_clk_xbar_on_hsi(struct clk_stm32_priv *priv) 1352 { 1353 uintptr_t xbar0cfgr = priv->base + RCC_XBAR0CFGR; 1354 uint32_t i = 0; 1355 1356 for (i = 0; i < XBAR_ROOT_CHANNEL_NB; i++) 1357 io_clrsetbits32(xbar0cfgr + (0x4 * i), 1358 RCC_XBAR0CFGR_XBAR0SEL_MASK, XBAR_SRC_HSI); 1359 } 1360 1361 static int stm32mp2_a35_pll1_start(void) 1362 { 1363 uint64_t timeout = 0; 1364 1365 stm32mp_syscfg_write(A35SS_SSC_PLL_EN, 1366 A35SS_SSC_PLL_ENABLE_PD_EN, 1367 A35SS_SSC_PLL_ENABLE_PD_EN); 1368 1369 /* Wait PLL lock */ 1370 timeout = timeout_init_us(PLLRDY_TIMEOUT); 1371 while (!timeout_elapsed(timeout)) 1372 if (stm32mp_syscfg_read(A35SS_SSC_PLL_EN) & 1373 A35SS_SSC_PLL_ENABLE_LOCKP_MASK) 1374 break; 1375 1376 if (!(stm32mp_syscfg_read(A35SS_SSC_PLL_EN) & 1377 A35SS_SSC_PLL_ENABLE_LOCKP_MASK)) { 1378 EMSG("PLL1 not locked"); 1379 return -1; 1380 } 1381 1382 /* De-assert reset on PLL output clock path */ 1383 stm32mp_syscfg_write(A35SS_SSC_PLL_EN, 1384 A35SS_SSC_PLL_ENABLE_NRESET_SWPLL_FF_EN, 1385 A35SS_SSC_PLL_ENABLE_NRESET_SWPLL_FF_MASK); 1386 1387 /* Switch CPU clock to PLL clock */ 1388 stm32mp_syscfg_write(A35SS_SSC_CHGCLKREQ, 1389 0, 1390 A35SS_SSC_CHGCLKREQ_ARM_CHGCLKREQ_MASK); 1391 1392 /* Wait for clock change acknowledge */ 1393 timeout = timeout_init_us(CLKSRC_TIMEOUT); 1394 while (!timeout_elapsed(timeout)) 1395 if (!(stm32mp_syscfg_read(A35SS_SSC_CHGCLKREQ) & 1396 A35SS_SSC_CHGCLKREQ_ARM_CHGCLKACK_MASK)) 1397 break; 1398 1399 if (stm32mp_syscfg_read(A35SS_SSC_CHGCLKREQ) & 1400 A35SS_SSC_CHGCLKREQ_ARM_CHGCLKACK_MASK) { 1401 EMSG("A35 switch to PLL1 failed"); 1402 return -1; 1403 } 1404 1405 return 0; 1406 } 1407 1408 static void stm32mp2_a35_pll1_config(uint32_t fbdiv, uint32_t refdiv, 1409 uint32_t postdiv1, uint32_t postdiv2) 1410 { 1411 stm32mp_syscfg_write(A35SS_SSC_PLL_FREQ1, 1412 SHIFT_U32(refdiv, 1413 A35SS_SSC_PLL_FREQ1_REFDIV_SHIFT) | 1414 SHIFT_U32(fbdiv, A35SS_SSC_PLL_FREQ1_FBDIV_SHIFT), 1415 A35SS_SSC_PLL_FREQ1_MASK); 1416 1417 stm32mp_syscfg_write(A35SS_SSC_PLL_FREQ2, 1418 SHIFT_U32(postdiv1, 1419 A35SS_SSC_PLL_FREQ2_POSTDIV1_SHIFT) | 1420 SHIFT_U32(postdiv2, 1421 A35SS_SSC_PLL_FREQ2_POSTDIV2_SHIFT), 1422 A35SS_SSC_PLL_FREQ2_MASK); 1423 } 1424 1425 static void clk_stm32_pll_config_output(struct clk_stm32_priv *priv, 1426 const struct stm32_clk_pll *pll, 1427 uint32_t pllsrc, 1428 uint32_t *pllcfg, 1429 uint32_t fracv) 1430 { 1431 uintptr_t pllxcfgr1 = priv->base + pll->reg_pllxcfgr1; 1432 uintptr_t pllxcfgr2 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR2; 1433 uintptr_t pllxcfgr3 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR3; 1434 uintptr_t pllxcfgr4 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR4; 1435 uintptr_t pllxcfgr6 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR6; 1436 uintptr_t pllxcfgr7 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR7; 1437 int sel = (pllsrc & MUX_SEL_MASK) >> MUX_SEL_SHIFT; 1438 unsigned long refclk = clk_stm32_pll_get_oscillator_rate(sel); 1439 1440 if (!fracv) { 1441 /* PLL in integer mode */ 1442 1443 /* 1444 * No need to check max clock, as oscillator reference clocks 1445 * will always be less than 1.2GHz 1446 */ 1447 if (refclk < PLL_REFCLK_MIN) 1448 panic(); 1449 1450 io_clrbits32(pllxcfgr3, RCC_PLLxCFGR3_FRACIN_MASK); 1451 io_clrbits32(pllxcfgr4, RCC_PLLxCFGR4_DSMEN); 1452 io_clrbits32(pllxcfgr3, RCC_PLLxCFGR3_DACEN); 1453 io_setbits32(pllxcfgr3, RCC_PLLxCFGR3_SSCGDIS); 1454 io_setbits32(pllxcfgr1, RCC_PLLxCFGR1_SSMODRST); 1455 } else { 1456 /* PLL in frac mode */ 1457 1458 /* 1459 * No need to check max clock, as oscillator reference clocks 1460 * will always be less than 1.2GHz 1461 */ 1462 if (refclk < PLL_FRAC_REFCLK_MIN) 1463 panic(); 1464 1465 io_clrsetbits32(pllxcfgr3, RCC_PLLxCFGR3_FRACIN_MASK, 1466 fracv & RCC_PLLxCFGR3_FRACIN_MASK); 1467 io_setbits32(pllxcfgr3, RCC_PLLxCFGR3_SSCGDIS); 1468 io_setbits32(pllxcfgr4, RCC_PLLxCFGR4_DSMEN); 1469 } 1470 1471 assert(pllcfg[REFDIV]); 1472 1473 io_clrsetbits32(pllxcfgr2, RCC_PLLxCFGR2_FBDIV_MASK, 1474 SHIFT_U32(pllcfg[FBDIV], RCC_PLLxCFGR2_FBDIV_SHIFT) & 1475 RCC_PLLxCFGR2_FBDIV_MASK); 1476 io_clrsetbits32(pllxcfgr2, RCC_PLLxCFGR2_FREFDIV_MASK, 1477 pllcfg[REFDIV] & RCC_PLLxCFGR2_FREFDIV_MASK); 1478 io_clrsetbits32(pllxcfgr6, RCC_PLLxCFGR6_POSTDIV1_MASK, 1479 pllcfg[POSTDIV1] & RCC_PLLxCFGR6_POSTDIV1_MASK); 1480 io_clrsetbits32(pllxcfgr7, RCC_PLLxCFGR7_POSTDIV2_MASK, 1481 pllcfg[POSTDIV2] & RCC_PLLxCFGR7_POSTDIV2_MASK); 1482 1483 if (!pllcfg[POSTDIV1] || !pllcfg[POSTDIV2]) { 1484 /* Bypass mode */ 1485 io_setbits32(pllxcfgr4, RCC_PLLxCFGR4_BYPASS); 1486 io_clrbits32(pllxcfgr4, RCC_PLLxCFGR4_FOUTPOSTDIVEN); 1487 } else { 1488 io_clrbits32(pllxcfgr4, RCC_PLLxCFGR4_BYPASS); 1489 io_setbits32(pllxcfgr4, RCC_PLLxCFGR4_FOUTPOSTDIVEN); 1490 } 1491 } 1492 1493 static void clk_stm32_pll_config_csg(struct clk_stm32_priv *priv, 1494 const struct stm32_clk_pll *pll, 1495 uint32_t *csg) 1496 { 1497 uintptr_t pllxcfgr1 = priv->base + pll->reg_pllxcfgr1; 1498 uintptr_t pllxcfgr3 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR3; 1499 uintptr_t pllxcfgr4 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR4; 1500 uintptr_t pllxcfgr5 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR5; 1501 1502 io_clrsetbits32(pllxcfgr5, RCC_PLLxCFGR5_DIVVAL_MASK, 1503 csg[DIVVAL] & RCC_PLLxCFGR5_DIVVAL_MASK); 1504 io_clrsetbits32(pllxcfgr5, RCC_PLLxCFGR5_SPREAD_MASK, 1505 SHIFT_U32(csg[SPREAD], RCC_PLLxCFGR5_SPREAD_SHIFT) & 1506 RCC_PLLxCFGR5_SPREAD_MASK); 1507 1508 if (csg[DOWNSPREAD]) 1509 io_setbits32(pllxcfgr3, RCC_PLLxCFGR3_DOWNSPREAD); 1510 else 1511 io_clrbits32(pllxcfgr3, RCC_PLLxCFGR3_DOWNSPREAD); 1512 1513 io_clrbits32(pllxcfgr3, RCC_PLLxCFGR3_SSCGDIS); 1514 1515 io_clrbits32(pllxcfgr1, RCC_PLLxCFGR1_PLLEN); 1516 udelay(1); 1517 1518 io_setbits32(pllxcfgr4, RCC_PLLxCFGR4_DSMEN); 1519 io_setbits32(pllxcfgr3, RCC_PLLxCFGR3_DACEN); 1520 } 1521 1522 static struct stm32_pll_dt_cfg *clk_stm32_pll_get_pdata(unsigned int pll_idx) 1523 { 1524 struct clk_stm32_priv *priv = clk_stm32_get_priv(); 1525 struct stm32_clk_platdata *pdata = priv->pdata; 1526 1527 assert(pll_idx < pdata->npll); 1528 1529 return &pdata->pll[pll_idx]; 1530 } 1531 1532 static int clk_stm32_pll_set_mux(struct clk_stm32_priv *priv __unused, 1533 uint32_t src) 1534 { 1535 int mux = (src & MUX_ID_MASK) >> MUX_ID_SHIFT; 1536 int sel = (src & MUX_SEL_MASK) >> MUX_SEL_SHIFT; 1537 1538 if (stm32_mux_set_parent(mux, sel)) 1539 return -1; 1540 else 1541 return 0; 1542 1543 } 1544 1545 static void clk_stm32_pll1_init(struct clk_stm32_priv *priv, 1546 int pll_idx __unused, 1547 struct stm32_pll_dt_cfg *pll_conf) 1548 { 1549 int sel = (pll_conf->src & MUX_SEL_MASK) >> MUX_SEL_SHIFT; 1550 unsigned long refclk = 0; 1551 1552 stm32mp2_a35_ss_on_bypass(); 1553 1554 if (clk_stm32_pll_set_mux(priv, pll_conf->src)) 1555 panic(); 1556 1557 refclk = clk_stm32_pll_get_oscillator_rate(sel); 1558 1559 /* 1560 * No need to check max clock, as oscillator reference clocks will 1561 * always be less than 1.2GHz 1562 */ 1563 if (refclk < PLL_REFCLK_MIN) 1564 panic(); 1565 1566 stm32mp2_a35_pll1_config(pll_conf->cfg[FBDIV], 1567 pll_conf->cfg[REFDIV], 1568 pll_conf->cfg[POSTDIV1], 1569 pll_conf->cfg[POSTDIV2]); 1570 1571 if (stm32mp2_a35_pll1_start()) 1572 panic(); 1573 } 1574 1575 static void clk_stm32_pll_init(struct clk_stm32_priv *priv, int pll_idx, 1576 struct stm32_pll_dt_cfg *pll_conf) 1577 { 1578 const struct stm32_clk_pll *pll = clk_stm32_pll_data(pll_idx); 1579 uintptr_t pllxcfgr1 = priv->base + pll->reg_pllxcfgr1; 1580 bool spread_spectrum = false; 1581 1582 if (stm32_gate_rdy_disable(pll->gate_id)) 1583 panic(); 1584 1585 if (clk_stm32_pll_set_mux(priv, pll_conf->src)) 1586 panic(); 1587 1588 clk_stm32_pll_config_output(priv, pll, pll_conf->src, 1589 pll_conf->cfg, pll_conf->frac); 1590 1591 if (pll_conf->csg_enabled) { 1592 clk_stm32_pll_config_csg(priv, pll, pll_conf->csg); 1593 spread_spectrum = true; 1594 } 1595 1596 if (stm32_gate_rdy_enable(pll->gate_id)) 1597 panic(); 1598 1599 if (spread_spectrum) 1600 io_clrbits32(pllxcfgr1, RCC_PLLxCFGR1_SSMODRST); 1601 } 1602 1603 static int stm32_clk_pll_configure(struct clk_stm32_priv *priv) 1604 { 1605 struct stm32_pll_dt_cfg *pll_conf = NULL; 1606 size_t i = 0; 1607 1608 for (i = 0; i < PLL_NB; i++) { 1609 pll_conf = clk_stm32_pll_get_pdata(i); 1610 1611 if (pll_conf->enabled) { 1612 /* Skip the PLL3 (need GPU regulator to configure) */ 1613 if (i == PLL3_ID) 1614 continue; 1615 1616 /* Skip the PLL2 (reserved to DDR) */ 1617 if (i == PLL2_ID) 1618 continue; 1619 1620 if (i == PLL1_ID) 1621 clk_stm32_pll1_init(priv, i, pll_conf); 1622 else 1623 clk_stm32_pll_init(priv, i, pll_conf); 1624 } 1625 } 1626 1627 return 0; 1628 } 1629 1630 #define __WORD_BIT 32 1631 1632 static int wait_predivsr(uint16_t channel) 1633 { 1634 uintptr_t rcc_base = stm32_rcc_base(); 1635 uintptr_t previvsr = 0; 1636 uint32_t channel_bit = 0; 1637 uint32_t value = 0; 1638 1639 if (channel < __WORD_BIT) { 1640 previvsr = rcc_base + RCC_PREDIVSR1; 1641 channel_bit = BIT(channel); 1642 } else { 1643 previvsr = rcc_base + RCC_PREDIVSR2; 1644 channel_bit = BIT(channel - __WORD_BIT); 1645 } 1646 1647 if (IO_READ32_POLL_TIMEOUT(previvsr, value, !(value & channel_bit), 0, 1648 CLKDIV_TIMEOUT)) { 1649 EMSG("Pre divider status: %#"PRIx32, io_read32(previvsr)); 1650 return -1; 1651 } 1652 1653 return 0; 1654 } 1655 1656 static int wait_findivsr(uint16_t channel) 1657 { 1658 uintptr_t rcc_base = stm32_rcc_base(); 1659 uintptr_t finvivsr = 0; 1660 uint32_t channel_bit = 0; 1661 uint32_t value = 0; 1662 1663 if (channel < __WORD_BIT) { 1664 finvivsr = rcc_base + RCC_FINDIVSR1; 1665 channel_bit = BIT(channel); 1666 } else { 1667 finvivsr = rcc_base + RCC_FINDIVSR2; 1668 channel_bit = BIT(channel - __WORD_BIT); 1669 } 1670 1671 if (IO_READ32_POLL_TIMEOUT(finvivsr, value, !(value & channel_bit), 0, 1672 CLKDIV_TIMEOUT)) { 1673 EMSG("Final divider status: %#"PRIx32, io_read32(finvivsr)); 1674 return -1; 1675 } 1676 1677 return 0; 1678 } 1679 1680 static int wait_xbar_sts(uint16_t channel) 1681 { 1682 uintptr_t rcc_base = stm32_rcc_base(); 1683 uintptr_t xbar_cfgr = rcc_base + RCC_XBAR0CFGR + (0x4 * channel); 1684 uint32_t value = 0; 1685 1686 if (IO_READ32_POLL_TIMEOUT(xbar_cfgr, value, 1687 !(value & RCC_XBAR0CFGR_XBAR0STS), 0, 1688 CLKDIV_TIMEOUT)) { 1689 EMSG("XBAR%"PRIu16"CFGR: %#"PRIx32, channel, 1690 io_read32(xbar_cfgr)); 1691 return -1; 1692 } 1693 1694 return 0; 1695 } 1696 1697 static TEE_Result flexclkgen_search_config(uint16_t channel, 1698 unsigned int *clk_src, 1699 unsigned int *prediv, 1700 unsigned int *findiv) 1701 { 1702 struct clk_stm32_priv *priv = clk_stm32_get_priv(); 1703 struct stm32_clk_platdata *pdata = priv->pdata; 1704 unsigned int flex_id = U(0); 1705 uint32_t dt_cfg = U(0); 1706 uint32_t i = U(0); 1707 1708 assert(clk_src && prediv && findiv); 1709 1710 /* 1711 * pdata->flexgen is the array of all the flexgen configuration from 1712 * the device tree. 1713 * The binding does not enforce the description of all flexgen nor 1714 * the order it which they are listed. 1715 */ 1716 for (i = 0; i < pdata->nflexgen; i++) { 1717 dt_cfg = pdata->flexgen[i]; 1718 1719 flex_id = (dt_cfg & FLEX_ID_MASK) >> FLEX_ID_SHIFT; 1720 if (flex_id == channel) { 1721 *clk_src = (dt_cfg & FLEX_SEL_MASK) >> FLEX_SEL_SHIFT; 1722 *prediv = (dt_cfg & FLEX_PDIV_MASK) >> FLEX_PDIV_SHIFT; 1723 *findiv = (dt_cfg & FLEX_FDIV_MASK) >> FLEX_FDIV_SHIFT; 1724 1725 return TEE_SUCCESS; 1726 } 1727 } 1728 1729 return TEE_ERROR_ITEM_NOT_FOUND; 1730 } 1731 1732 static void flexclkgen_config_channel(uint16_t channel, unsigned int clk_src, 1733 unsigned int prediv, unsigned int findiv) 1734 { 1735 uintptr_t rcc_base = stm32_rcc_base(); 1736 1737 if (wait_predivsr(channel)) 1738 panic(); 1739 1740 io_clrsetbits32(rcc_base + RCC_PREDIV0CFGR + (0x4 * channel), 1741 RCC_PREDIV0CFGR_PREDIV0_MASK, prediv); 1742 1743 if (wait_predivsr(channel)) 1744 panic(); 1745 1746 if (wait_findivsr(channel)) 1747 panic(); 1748 1749 io_clrsetbits32(rcc_base + RCC_FINDIV0CFGR + (0x4 * channel), 1750 RCC_FINDIV0CFGR_FINDIV0_MASK, 1751 findiv); 1752 1753 if (wait_findivsr(channel)) 1754 panic(); 1755 1756 if (wait_xbar_sts(channel)) 1757 panic(); 1758 1759 io_clrsetbits32(rcc_base + RCC_XBAR0CFGR + (0x4 * channel), 1760 RCC_XBAR0CFGR_XBAR0SEL_MASK, 1761 clk_src); 1762 1763 io_setbits32(rcc_base + RCC_XBAR0CFGR + (0x4 * channel), 1764 RCC_XBAR0CFGR_XBAR0EN); 1765 1766 if (wait_xbar_sts(channel)) 1767 panic(); 1768 } 1769 1770 static int stm32mp2_clk_flexgen_configure(struct clk_stm32_priv *priv) 1771 { 1772 struct stm32_clk_platdata *pdata = priv->pdata; 1773 uint32_t i = 0; 1774 1775 for (i = 0; i < pdata->nflexgen; i++) { 1776 uint32_t val = pdata->flexgen[i]; 1777 uint32_t cmd = 0; 1778 uint32_t cmd_data = 0; 1779 unsigned int channel = 0; 1780 unsigned int clk_src = 0; 1781 unsigned int pdiv = 0; 1782 unsigned int fdiv = 0; 1783 1784 cmd = (val & CMD_MASK) >> CMD_SHIFT; 1785 cmd_data = val & ~CMD_MASK; 1786 1787 if (cmd != CMD_FLEXGEN) 1788 continue; 1789 1790 channel = (cmd_data & FLEX_ID_MASK) >> FLEX_ID_SHIFT; 1791 1792 /* 1793 * Skip ck_ker_stgen configuration, will be done by 1794 * stgen driver. 1795 */ 1796 if (channel == FLEX_STGEN) 1797 continue; 1798 1799 clk_src = (cmd_data & FLEX_SEL_MASK) >> FLEX_SEL_SHIFT; 1800 pdiv = (cmd_data & FLEX_PDIV_MASK) >> FLEX_PDIV_SHIFT; 1801 fdiv = (cmd_data & FLEX_FDIV_MASK) >> FLEX_FDIV_SHIFT; 1802 1803 flexclkgen_config_channel(channel, clk_src, pdiv, fdiv); 1804 } 1805 1806 return 0; 1807 } 1808 1809 static int stm32_clk_configure_div(struct clk_stm32_priv *priv __unused, 1810 uint32_t data) 1811 { 1812 uint32_t div_id = 0; 1813 uint32_t div_n = 0; 1814 1815 div_id = (data & DIV_ID_MASK) >> DIV_ID_SHIFT; 1816 div_n = (data & DIV_DIVN_MASK) >> DIV_DIVN_SHIFT; 1817 1818 return stm32_div_set_value(div_id, div_n); 1819 } 1820 1821 static int stm32_clk_configure_mux(struct clk_stm32_priv *priv __unused, 1822 uint32_t data) 1823 { 1824 int mux = (data & MUX_ID_MASK) >> MUX_ID_SHIFT; 1825 int sel = (data & MUX_SEL_MASK) >> MUX_SEL_SHIFT; 1826 1827 if (stm32_mux_set_parent(mux, sel)) 1828 return -1; 1829 else 1830 return 0; 1831 } 1832 1833 static int stm32_clk_configure_by_addr_val(struct clk_stm32_priv *priv, 1834 uint32_t data) 1835 { 1836 uint32_t addr = data >> CLK_ADDR_SHIFT; 1837 uint32_t val = data & CLK_ADDR_VAL_MASK; 1838 1839 io_setbits32(priv->base + addr, val); 1840 1841 return 0; 1842 } 1843 1844 static void stm32_clk_configure_obs(struct clk_stm32_priv *priv, 1845 uint32_t data) 1846 { 1847 uint32_t id = (data & OBS_ID_MASK) >> OBS_ID_SHIFT; 1848 uint32_t status = (data & OBS_STATUS_MASK) >> OBS_STATUS_SHIFT; 1849 uint32_t int_ext = (data & OBS_INTEXT_MASK) >> OBS_INTEXT_SHIFT; 1850 uint32_t div = (data & OBS_DIV_MASK) >> OBS_DIV_SHIFT; 1851 uint32_t inv = (data & OBS_INV_MASK) >> OBS_INV_SHIFT; 1852 uint32_t sel = (data & OBS_SEL_MASK) >> OBS_SEL_SHIFT; 1853 uint32_t reg = 0; 1854 uint32_t val = 0; 1855 1856 if (!id) 1857 reg = RCC_FCALCOBS0CFGR; 1858 else 1859 reg = RCC_FCALCOBS1CFGR; 1860 1861 if (status) 1862 val |= RCC_FCALCOBS0CFGR_CKOBSEN; 1863 1864 if (int_ext == OBS_EXT) { 1865 val |= RCC_FCALCOBS0CFGR_CKOBSEXTSEL; 1866 val |= SHIFT_U32(sel, RCC_FCALCOBS0CFGR_CKEXTSEL_SHIFT); 1867 } else { 1868 val |= SHIFT_U32(sel, RCC_FCALCOBS0CFGR_CKINTSEL_SHIFT); 1869 } 1870 1871 if (inv) 1872 val |= RCC_FCALCOBS0CFGR_CKOBSINV; 1873 1874 val |= SHIFT_U32(div, RCC_FCALCOBS0CFGR_CKOBSDIV_SHIFT); 1875 1876 io_write32(priv->base + reg, val); 1877 } 1878 1879 static int stm32_clk_configure(struct clk_stm32_priv *priv, uint32_t val) 1880 { 1881 uint32_t cmd_data = 0; 1882 uint32_t cmd = 0; 1883 int ret = 0; 1884 1885 if (val & CMD_ADDR_BIT) { 1886 cmd_data = val & ~CMD_ADDR_BIT; 1887 1888 return stm32_clk_configure_by_addr_val(priv, cmd_data); 1889 } 1890 1891 cmd = (val & CMD_MASK) >> CMD_SHIFT; 1892 cmd_data = val & ~CMD_MASK; 1893 1894 switch (cmd) { 1895 case CMD_DIV: 1896 ret = stm32_clk_configure_div(priv, cmd_data); 1897 break; 1898 1899 case CMD_MUX: 1900 ret = stm32_clk_configure_mux(priv, cmd_data); 1901 break; 1902 1903 case CMD_OBS: 1904 stm32_clk_configure_obs(priv, cmd_data); 1905 break; 1906 1907 default: 1908 EMSG("cmd unknown ! : %#"PRIx32, val); 1909 ret = -1; 1910 } 1911 1912 return ret; 1913 } 1914 1915 static int stm32_clk_bus_configure(struct clk_stm32_priv *priv) 1916 { 1917 struct stm32_clk_platdata *pdata = priv->pdata; 1918 uint32_t i = 0; 1919 1920 for (i = 0; i < pdata->nbusclk; i++) { 1921 int ret = 0; 1922 1923 ret = stm32_clk_configure(priv, pdata->busclk[i]); 1924 if (ret) 1925 return ret; 1926 } 1927 1928 return 0; 1929 } 1930 1931 static int stm32_clk_kernel_configure(struct clk_stm32_priv *priv) 1932 { 1933 struct stm32_clk_platdata *pdata = priv->pdata; 1934 uint32_t i = 0; 1935 1936 for (i = 0; i < pdata->nkernelclk; i++) { 1937 int ret = 0; 1938 1939 ret = stm32_clk_configure(priv, pdata->kernelclk[i]); 1940 if (ret) 1941 return ret; 1942 } 1943 1944 return 0; 1945 } 1946 1947 static void stm32mp2_init_clock_tree(struct clk_stm32_priv *priv, 1948 struct stm32_clk_platdata *pdata) 1949 { 1950 stm32_clk_oscillators_enable(priv, pdata); 1951 1952 /* Come back to HSI for flexgen */ 1953 stm32mp2_clk_xbar_on_hsi(priv); 1954 1955 if (stm32_clk_pll_configure(priv)) 1956 panic("Cannot configure plls"); 1957 1958 /* Wait LSE ready before to use it */ 1959 if (stm32_clk_oscillators_wait_lse_ready(priv, pdata)) 1960 panic("Timeout: to enable LSE"); 1961 1962 if (stm32mp2_clk_flexgen_configure(priv)) 1963 panic("Cannot configure flexgen"); 1964 1965 if (stm32_clk_bus_configure(priv)) 1966 panic("Cannot config bus clocks"); 1967 1968 if (stm32_clk_kernel_configure(priv)) 1969 panic("Cannot configure kernel clocks"); 1970 1971 /* Configure LSE css after RTC source configuration */ 1972 stm32_clk_oscillators_lse_set_css(priv, pdata); 1973 } 1974 1975 static TEE_Result clk_stm32_osc_enable(struct clk *clk) 1976 { 1977 return clk_stm32_gate_ready_ops.enable(clk); 1978 } 1979 1980 static void clk_stm32_osc_disable(struct clk *clk) 1981 { 1982 clk_stm32_gate_ready_ops.disable(clk); 1983 } 1984 1985 static const struct clk_ops clk_stm32_osc_ops = { 1986 .enable = clk_stm32_osc_enable, 1987 .disable = clk_stm32_osc_disable, 1988 }; 1989 1990 static unsigned long clk_stm32_msi_get_rate(struct clk *clk __unused, 1991 unsigned long prate __unused) 1992 { 1993 struct clk_stm32_priv *priv = clk_stm32_get_priv(); 1994 uintptr_t address = priv->base + RCC_BDCR; 1995 1996 if ((io_read32(address) & RCC_BDCR_MSIFREQSEL)) 1997 return RCC_16_MHZ; 1998 1999 return RCC_4_MHZ; 2000 } 2001 2002 static TEE_Result clk_stm32_msi_set_rate(struct clk *clk __unused, 2003 unsigned long rate, 2004 unsigned long prate __unused) 2005 { 2006 struct clk_stm32_priv *priv = clk_stm32_get_priv(); 2007 2008 return clk_stm32_osc_msi_set_rate(priv, rate); 2009 } 2010 2011 static const struct clk_ops clk_stm32_oscillator_msi_ops = { 2012 .enable = clk_stm32_osc_enable, 2013 .disable = clk_stm32_osc_disable, 2014 .get_rate = clk_stm32_msi_get_rate, 2015 .set_rate = clk_stm32_msi_set_rate, 2016 }; 2017 2018 static TEE_Result clk_stm32_hse_div_set_rate(struct clk *clk, 2019 unsigned long rate, 2020 unsigned long parent_rate) 2021 { 2022 return clk_stm32_divider_set_rate(clk, rate, parent_rate); 2023 } 2024 2025 static const struct clk_ops clk_stm32_hse_div_ops = { 2026 .get_rate = clk_stm32_divider_get_rate, 2027 .set_rate = clk_stm32_hse_div_set_rate, 2028 }; 2029 2030 static TEE_Result clk_stm32_hsediv2_enable(struct clk *clk) 2031 { 2032 return clk_stm32_gate_ops.enable(clk); 2033 } 2034 2035 static void clk_stm32_hsediv2_disable(struct clk *clk) 2036 { 2037 clk_stm32_gate_ops.disable(clk); 2038 } 2039 2040 static unsigned long clk_stm32_hsediv2_get_rate(struct clk *clk __unused, 2041 unsigned long prate) 2042 { 2043 struct clk_stm32_priv *priv = clk_stm32_get_priv(); 2044 uintptr_t addr = priv->base + RCC_OCENSETR; 2045 2046 if (io_read32(addr) & RCC_OCENSETR_HSEDIV2BYP) 2047 return prate; 2048 2049 return prate / 2; 2050 } 2051 2052 static const struct clk_ops clk_hsediv2_ops = { 2053 .enable = clk_stm32_hsediv2_enable, 2054 .disable = clk_stm32_hsediv2_disable, 2055 .get_rate = clk_stm32_hsediv2_get_rate, 2056 }; 2057 2058 struct clk_stm32_pll_cfg { 2059 uint32_t pll_offset; 2060 int gate_id; 2061 int mux_id; 2062 }; 2063 2064 static unsigned long clk_get_pll1_fvco_rate(unsigned long refclk) 2065 { 2066 uint32_t reg = stm32mp_syscfg_read(A35SS_SSC_PLL_FREQ1); 2067 uint32_t fbdiv = 0; 2068 uint32_t refdiv = 0; 2069 unsigned long freq = 0; 2070 2071 fbdiv = (reg & A35SS_SSC_PLL_FREQ1_FBDIV_MASK) >> 2072 A35SS_SSC_PLL_FREQ1_FBDIV_SHIFT; 2073 2074 refdiv = (reg & A35SS_SSC_PLL_FREQ1_REFDIV_MASK) >> 2075 A35SS_SSC_PLL_FREQ1_REFDIV_SHIFT; 2076 2077 if (!refdiv || MUL_OVERFLOW(refclk, fbdiv, &freq)) 2078 panic(); 2079 2080 return freq / refdiv; 2081 } 2082 2083 static unsigned long clk_stm32_pll1_get_rate(struct clk *clk __unused, 2084 unsigned long prate) 2085 { 2086 uint32_t reg = stm32mp_syscfg_read(A35SS_SSC_PLL_FREQ2); 2087 unsigned long dfout = 0; 2088 uint32_t postdiv1 = 0; 2089 uint32_t postdiv2 = 0; 2090 2091 postdiv1 = (reg & A35SS_SSC_PLL_FREQ2_POSTDIV1_MASK) >> 2092 A35SS_SSC_PLL_FREQ2_POSTDIV1_SHIFT; 2093 2094 postdiv2 = (reg & A35SS_SSC_PLL_FREQ2_POSTDIV2_MASK) >> 2095 A35SS_SSC_PLL_FREQ2_POSTDIV2_SHIFT; 2096 2097 if (!postdiv1 || !postdiv2) 2098 dfout = prate; 2099 else 2100 dfout = clk_get_pll1_fvco_rate(prate) / (postdiv1 * postdiv2); 2101 2102 return dfout; 2103 } 2104 2105 static struct stm32_clk_opp_cfg * 2106 clk_stm32_get_opp_config(struct stm32_clk_opp_cfg *opp_cfg, unsigned long rate) 2107 { 2108 unsigned int i = 0; 2109 2110 for (i = 0; i < MAX_OPP && opp_cfg->frq; i++, opp_cfg++) 2111 if (opp_cfg->frq == rate) 2112 return opp_cfg; 2113 2114 return NULL; 2115 } 2116 2117 static TEE_Result clk_stm32_pll1_set_rate(struct clk *clk __unused, 2118 unsigned long rate, 2119 unsigned long parent_rate __unused) 2120 { 2121 struct clk_stm32_priv *priv = clk_stm32_get_priv(); 2122 struct stm32_clk_platdata *pdata = priv->pdata; 2123 struct stm32_pll_dt_cfg *pll_conf = NULL; 2124 struct stm32_clk_opp_cfg *opp = NULL; 2125 2126 opp = clk_stm32_get_opp_config(pdata->opp->cpu1_opp, rate); 2127 if (!opp) 2128 return TEE_ERROR_GENERIC; 2129 2130 pll_conf = &opp->pll_cfg; 2131 2132 clk_stm32_pll1_init(priv, PLL1_ID, pll_conf); 2133 2134 return TEE_SUCCESS; 2135 } 2136 2137 static size_t clk_stm32_pll_get_parent(struct clk *clk) 2138 { 2139 struct clk_stm32_pll_cfg *cfg = clk->priv; 2140 2141 return stm32_mux_get_parent(cfg->mux_id); 2142 } 2143 2144 static const struct clk_ops clk_stm32_pll1_ops = { 2145 .get_parent = clk_stm32_pll_get_parent, 2146 .get_rate = clk_stm32_pll1_get_rate, 2147 .set_rate = clk_stm32_pll1_set_rate, 2148 }; 2149 2150 static unsigned long clk_get_pll_fvco(uint32_t offset_base, 2151 unsigned long prate) 2152 { 2153 struct clk_stm32_priv *priv = clk_stm32_get_priv(); 2154 uintptr_t pllxcfgr1 = priv->base + offset_base; 2155 uintptr_t pllxcfgr2 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR2; 2156 uintptr_t pllxcfgr3 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR3; 2157 unsigned long fvco = 0; 2158 uint32_t fracin = 0; 2159 uint32_t fbdiv = 0; 2160 uint32_t refdiv = 0; 2161 2162 fracin = io_read32(pllxcfgr3) & RCC_PLLxCFGR3_FRACIN_MASK; 2163 fbdiv = (io_read32(pllxcfgr2) & RCC_PLLxCFGR2_FBDIV_MASK) >> 2164 RCC_PLLxCFGR2_FBDIV_SHIFT; 2165 2166 refdiv = io_read32(pllxcfgr2) & RCC_PLLxCFGR2_FREFDIV_MASK; 2167 2168 assert(refdiv); 2169 2170 if (fracin) { 2171 unsigned long long numerator = 0; 2172 unsigned long long denominator = 0; 2173 2174 numerator = SHIFT_U64(fbdiv, 24) + fracin; 2175 numerator = prate * numerator; 2176 denominator = SHIFT_U64(refdiv, 24); 2177 fvco = (unsigned long)(numerator / denominator); 2178 } else { 2179 fvco = (unsigned long)(prate * fbdiv / refdiv); 2180 } 2181 2182 return fvco; 2183 } 2184 2185 static unsigned long clk_stm32_pll_get_rate(struct clk *clk __unused, 2186 unsigned long prate) 2187 { 2188 struct clk_stm32_priv *priv = clk_stm32_get_priv(); 2189 struct clk_stm32_pll_cfg *cfg = clk->priv; 2190 uintptr_t pllxcfgr1 = priv->base + cfg->pll_offset; 2191 uintptr_t pllxcfgr4 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR4; 2192 uintptr_t pllxcfgr6 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR6; 2193 uintptr_t pllxcfgr7 = pllxcfgr1 + RCC_OFFSET_PLLXCFGR7; 2194 unsigned long dfout = 0; 2195 uint32_t postdiv1 = 0; 2196 uint32_t postdiv2 = 0; 2197 2198 postdiv1 = io_read32(pllxcfgr6) & RCC_PLLxCFGR6_POSTDIV1_MASK; 2199 postdiv2 = io_read32(pllxcfgr7) & RCC_PLLxCFGR7_POSTDIV2_MASK; 2200 2201 if ((io_read32(pllxcfgr4) & RCC_PLLxCFGR4_BYPASS) || 2202 !postdiv1 || !postdiv2) 2203 dfout = prate; 2204 else 2205 dfout = clk_get_pll_fvco(cfg->pll_offset, 2206 prate) / (postdiv1 * postdiv2); 2207 2208 return dfout; 2209 } 2210 2211 static TEE_Result clk_stm32_pll_enable(struct clk *clk) 2212 { 2213 struct clk_stm32_pll_cfg *cfg = clk->priv; 2214 2215 if (stm32_gate_rdy_enable(cfg->gate_id)) { 2216 EMSG("%s timeout", clk_get_name(clk)); 2217 return TEE_ERROR_TIMEOUT; 2218 } 2219 2220 return TEE_SUCCESS; 2221 } 2222 2223 static void clk_stm32_pll_disable(struct clk *clk) 2224 { 2225 struct clk_stm32_pll_cfg *cfg = clk->priv; 2226 2227 if (stm32_gate_rdy_disable(cfg->gate_id)) { 2228 EMSG("%s timeout", clk_get_name(clk)); 2229 panic(); 2230 } 2231 } 2232 2233 static const struct clk_ops clk_stm32_pll_ops = { 2234 .get_parent = clk_stm32_pll_get_parent, 2235 .get_rate = clk_stm32_pll_get_rate, 2236 .enable = clk_stm32_pll_enable, 2237 .disable = clk_stm32_pll_disable, 2238 }; 2239 2240 static TEE_Result clk_stm32_pll3_enable(struct clk *clk) 2241 { 2242 struct clk_stm32_pll_cfg *cfg = clk->priv; 2243 struct clk_stm32_priv *priv = clk_stm32_get_priv(); 2244 struct stm32_pll_dt_cfg *pll_conf = clk_stm32_pll_get_pdata(PLL3_ID); 2245 struct clk *parent = NULL; 2246 size_t pidx = 0; 2247 2248 /* ck_icn_p_gpu activate */ 2249 stm32_gate_enable(GATE_GPU); 2250 2251 clk_stm32_pll_init(priv, PLL3_ID, pll_conf); 2252 2253 if (stm32_gate_rdy_enable(cfg->gate_id)) { 2254 EMSG("%s timeout", clk_get_name(clk)); 2255 return TEE_ERROR_TIMEOUT; 2256 } 2257 2258 /* Update parent */ 2259 pidx = clk_stm32_pll_get_parent(clk); 2260 parent = clk_get_parent_by_index(clk, pidx); 2261 2262 clk->parent = parent; 2263 2264 return TEE_SUCCESS; 2265 } 2266 2267 static void clk_stm32_pll3_disable(struct clk *clk) 2268 { 2269 clk_stm32_pll_disable(clk); 2270 stm32_gate_disable(GATE_GPU); 2271 } 2272 2273 static const struct clk_ops clk_stm32_pll3_ops = { 2274 .get_parent = clk_stm32_pll_get_parent, 2275 .get_rate = clk_stm32_pll_get_rate, 2276 .enable = clk_stm32_pll3_enable, 2277 .disable = clk_stm32_pll3_disable, 2278 }; 2279 2280 struct clk_stm32_flexgen_cfg { 2281 int flex_id; 2282 }; 2283 2284 static size_t clk_stm32_flexgen_get_parent(struct clk *clk) 2285 { 2286 struct clk_stm32_flexgen_cfg *cfg = clk->priv; 2287 uintptr_t rcc_base = clk_stm32_get_rcc_base(); 2288 uint32_t address = 0; 2289 2290 address = rcc_base + RCC_XBAR0CFGR + (cfg->flex_id * 4); 2291 2292 return io_read32(address) & RCC_XBAR0CFGR_XBAR0SEL_MASK; 2293 } 2294 2295 static TEE_Result clk_stm32_flexgen_set_parent(struct clk *clk, size_t pidx) 2296 { 2297 uintptr_t rcc_base = clk_stm32_get_rcc_base(); 2298 struct clk_stm32_flexgen_cfg *cfg = clk->priv; 2299 uint16_t channel = cfg->flex_id * 4; 2300 2301 io_clrsetbits32(rcc_base + RCC_XBAR0CFGR + (channel), 2302 RCC_XBAR0CFGR_XBAR0SEL_MASK, pidx); 2303 2304 if (wait_xbar_sts(channel)) 2305 return TEE_ERROR_GENERIC; 2306 2307 return TEE_SUCCESS; 2308 } 2309 2310 static unsigned long clk_stm32_flexgen_get_rate(struct clk *clk, 2311 unsigned long prate) 2312 { 2313 struct clk_stm32_flexgen_cfg *cfg = clk->priv; 2314 uintptr_t rcc_base = clk_stm32_get_rcc_base(); 2315 uint32_t prediv = 0; 2316 uint32_t findiv = 0; 2317 uint8_t channel = cfg->flex_id; 2318 unsigned long freq = prate; 2319 2320 prediv = io_read32(rcc_base + RCC_PREDIV0CFGR + (0x4 * channel)) & 2321 RCC_PREDIV0CFGR_PREDIV0_MASK; 2322 findiv = io_read32(rcc_base + RCC_FINDIV0CFGR + (0x4 * channel)) & 2323 RCC_FINDIV0CFGR_FINDIV0_MASK; 2324 2325 if (!freq) 2326 return 0; 2327 2328 switch (prediv) { 2329 case 0x0: 2330 break; 2331 2332 case 0x1: 2333 freq /= 2; 2334 break; 2335 2336 case 0x3: 2337 freq /= 4; 2338 break; 2339 2340 case 0x3FF: 2341 freq /= 1024; 2342 break; 2343 2344 default: 2345 EMSG("Unsupported PREDIV value (%#"PRIx32")", prediv); 2346 panic(); 2347 break; 2348 } 2349 2350 freq /= findiv + 1; 2351 2352 return freq; 2353 } 2354 2355 static unsigned long clk_stm32_flexgen_get_round_rate(unsigned long rate, 2356 unsigned long prate, 2357 unsigned int *prediv, 2358 unsigned int *findiv) 2359 { 2360 unsigned int pre_val[] = { 0x0, 0x1, 0x3, 0x3FF }; 2361 unsigned int pre_div[] = { 1, 2, 4, 1024 }; 2362 long best_diff = LONG_MAX; 2363 unsigned int i = 0; 2364 2365 *prediv = 0; 2366 *findiv = 0; 2367 2368 for (i = 0; i < ARRAY_SIZE(pre_div); i++) { 2369 unsigned long freq = 0; 2370 unsigned long ratio = 0; 2371 long diff = 0L; 2372 2373 freq = UDIV_ROUND_NEAREST((uint64_t)prate, pre_div[i]); 2374 ratio = UDIV_ROUND_NEAREST((uint64_t)freq, rate); 2375 2376 if (!ratio) 2377 ratio = 1; 2378 else if (ratio > 64) 2379 ratio = 64; 2380 2381 freq = UDIV_ROUND_NEAREST((uint64_t)freq, ratio); 2382 if (freq < rate) 2383 diff = rate - freq; 2384 else 2385 diff = freq - rate; 2386 2387 if (diff < best_diff) { 2388 best_diff = diff; 2389 *prediv = pre_val[i]; 2390 *findiv = ratio - 1; 2391 2392 if (!diff) 2393 break; 2394 } 2395 } 2396 2397 return (prate / (*prediv + 1)) / (*findiv + 1); 2398 } 2399 2400 static TEE_Result clk_stm32_flexgen_set_rate(struct clk *clk, 2401 unsigned long rate, 2402 unsigned long parent_rate) 2403 { 2404 struct clk_stm32_flexgen_cfg *cfg = clk->priv; 2405 uint8_t channel = cfg->flex_id; 2406 uintptr_t rcc_base = stm32_rcc_base(); 2407 unsigned int prediv = 0; 2408 unsigned int findiv = 0; 2409 2410 clk_stm32_flexgen_get_round_rate(rate, parent_rate, &prediv, &findiv); 2411 2412 if (wait_predivsr(channel)) 2413 panic(); 2414 2415 io_clrsetbits32(rcc_base + RCC_PREDIV0CFGR + (0x4 * channel), 2416 RCC_PREDIV0CFGR_PREDIV0_MASK, 2417 prediv); 2418 2419 if (wait_predivsr(channel)) 2420 panic(); 2421 2422 if (wait_findivsr(channel)) 2423 panic(); 2424 2425 io_clrsetbits32(rcc_base + RCC_FINDIV0CFGR + (0x4 * channel), 2426 RCC_FINDIV0CFGR_FINDIV0_MASK, 2427 findiv); 2428 2429 if (wait_findivsr(channel)) 2430 panic(); 2431 2432 return TEE_SUCCESS; 2433 } 2434 2435 static TEE_Result clk_stm32_flexgen_enable(struct clk *clk) 2436 { 2437 struct clk_stm32_flexgen_cfg *cfg = clk->priv; 2438 uintptr_t rcc_base = clk_stm32_get_rcc_base(); 2439 TEE_Result ret = TEE_ERROR_GENERIC; 2440 uint8_t channel = cfg->flex_id; 2441 2442 /* 2443 * Configure flexgen of STGEN since it has been skipped during 2444 * flexgen configuration. 2445 */ 2446 if (channel == FLEX_STGEN) { 2447 unsigned int clk_src = U(0); 2448 unsigned int pdiv = U(0); 2449 unsigned int fdiv = U(0); 2450 2451 ret = flexclkgen_search_config(channel, &clk_src, &pdiv, &fdiv); 2452 if (ret) { 2453 EMSG("Error %#"PRIx32" when getting STGEN flexgen conf", 2454 ret); 2455 return ret; 2456 } 2457 2458 flexclkgen_config_channel(channel, clk_src, pdiv, fdiv); 2459 2460 /* Update parent */ 2461 clk->parent = clk_get_parent_by_index(clk, clk_src); 2462 } 2463 2464 io_setbits32(rcc_base + RCC_FINDIV0CFGR + (0x4 * channel), 2465 RCC_FINDIV0CFGR_FINDIV0EN); 2466 2467 return TEE_SUCCESS; 2468 } 2469 2470 static void clk_stm32_flexgen_disable(struct clk *clk) 2471 { 2472 struct clk_stm32_flexgen_cfg *cfg = clk->priv; 2473 uintptr_t rcc_base = clk_stm32_get_rcc_base(); 2474 uint8_t channel = cfg->flex_id; 2475 2476 io_clrbits32(rcc_base + RCC_FINDIV0CFGR + (0x4 * channel), 2477 RCC_FINDIV0CFGR_FINDIV0EN); 2478 } 2479 2480 static const struct clk_ops clk_stm32_flexgen_ops = { 2481 .get_rate = clk_stm32_flexgen_get_rate, 2482 .set_rate = clk_stm32_flexgen_set_rate, 2483 .get_parent = clk_stm32_flexgen_get_parent, 2484 .set_parent = clk_stm32_flexgen_set_parent, 2485 .enable = clk_stm32_flexgen_enable, 2486 .disable = clk_stm32_flexgen_disable, 2487 }; 2488 2489 static size_t clk_cpu1_get_parent(struct clk *clk __unused) 2490 { 2491 uint32_t reg = stm32mp_syscfg_read(A35SS_SSC_CHGCLKREQ); 2492 2493 return (reg & A35SS_SSC_CHGCLKREQ_ARM_CHGCLKACK_MASK) >> 2494 A35SS_SSC_CHGCLKREQ_ARM_CHGCLKACK_SHIFT; 2495 } 2496 2497 static const struct clk_ops clk_stm32_cpu1_ops = { 2498 .get_parent = clk_cpu1_get_parent, 2499 }; 2500 2501 #define APB_DIV_MASK GENMASK_32(2, 0) 2502 #define TIM_PRE_MASK BIT(0) 2503 2504 static unsigned long ck_timer_get_rate_ops(struct clk *clk, unsigned long prate) 2505 { 2506 struct clk_stm32_timer_cfg *cfg = clk->priv; 2507 uintptr_t rcc_base = clk_stm32_get_rcc_base(); 2508 uint32_t prescaler = 0; 2509 uint32_t timpre = 0; 2510 2511 prescaler = io_read32(rcc_base + cfg->apbdiv) & APB_DIV_MASK; 2512 2513 timpre = io_read32(rcc_base + cfg->timpre) & TIM_PRE_MASK; 2514 2515 if (!prescaler) 2516 return prate; 2517 2518 return prate * (timpre + 1) * 2; 2519 }; 2520 2521 static const struct clk_ops ck_timer_ops = { 2522 .get_rate = ck_timer_get_rate_ops, 2523 }; 2524 2525 #define PLL_PARENTS { &ck_hsi, &ck_hse, &ck_msi } 2526 #define PLL_NUM_PATENTS 3 2527 2528 #define STM32_OSC(_name, _flags, _gate_id)\ 2529 struct clk _name = {\ 2530 .ops = &clk_stm32_osc_ops,\ 2531 .priv = &(struct clk_stm32_gate_cfg){\ 2532 .gate_id = (_gate_id),\ 2533 },\ 2534 .name = #_name,\ 2535 .flags = (_flags),\ 2536 .num_parents = 1,\ 2537 .parents = { NULL },\ 2538 } 2539 2540 #define STM32_OSC_MSI(_name, _flags, _gate_id)\ 2541 struct clk _name = {\ 2542 .ops = &clk_stm32_oscillator_msi_ops,\ 2543 .priv = &(struct clk_stm32_gate_cfg){\ 2544 .gate_id = (_gate_id),\ 2545 },\ 2546 .name = #_name,\ 2547 .flags = (_flags),\ 2548 .num_parents = 1,\ 2549 .parents = { NULL },\ 2550 } 2551 2552 #define STM32_HSE_DIV2(_name, _parent, _flags, _gate_id)\ 2553 struct clk _name = {\ 2554 .ops = &clk_hsediv2_ops,\ 2555 .priv = &(struct clk_stm32_gate_cfg){\ 2556 .gate_id = (_gate_id),\ 2557 },\ 2558 .name = #_name,\ 2559 .flags = (_flags),\ 2560 .num_parents = 1,\ 2561 .parents = { (_parent) },\ 2562 } 2563 2564 #define STM32_HSE_RTC(_name, _parent, _flags, _div_id)\ 2565 struct clk _name = {\ 2566 .ops = &clk_stm32_hse_div_ops,\ 2567 .priv = &(struct clk_stm32_div_cfg){\ 2568 .div_id = (_div_id),\ 2569 },\ 2570 .name = #_name,\ 2571 .flags = (_flags),\ 2572 .num_parents = 1,\ 2573 .parents = { (_parent) },\ 2574 } 2575 2576 #define STM32_PLL1(_name, _flags, _mux_id)\ 2577 struct clk _name = {\ 2578 .ops = &clk_stm32_pll1_ops,\ 2579 .priv = &(struct clk_stm32_pll_cfg){\ 2580 .mux_id = (_mux_id),\ 2581 },\ 2582 .name = #_name,\ 2583 .flags = (_flags),\ 2584 .num_parents = PLL_NUM_PATENTS,\ 2585 .parents = PLL_PARENTS,\ 2586 } 2587 2588 #define STM32_PLL2(_name, _flags, _reg, _gate_id, _mux_id)\ 2589 struct clk _name = {\ 2590 .ops = &clk_stm32_pll_ops,\ 2591 .priv = &(struct clk_stm32_pll_cfg){\ 2592 .pll_offset = (_reg),\ 2593 .gate_id = (_gate_id),\ 2594 .mux_id = (_mux_id),\ 2595 },\ 2596 .name = #_name,\ 2597 .flags = (_flags),\ 2598 .num_parents = PLL_NUM_PATENTS,\ 2599 .parents = PLL_PARENTS,\ 2600 } 2601 2602 #define STM32_PLL3(_name, _flags, _reg, _gate_id, _mux_id)\ 2603 struct clk _name = {\ 2604 .ops = &clk_stm32_pll3_ops,\ 2605 .priv = &(struct clk_stm32_pll_cfg){\ 2606 .pll_offset = (_reg),\ 2607 .gate_id = (_gate_id),\ 2608 .mux_id = (_mux_id),\ 2609 },\ 2610 .name = #_name,\ 2611 .flags = (_flags),\ 2612 .num_parents = PLL_NUM_PATENTS,\ 2613 .parents = PLL_PARENTS,\ 2614 } 2615 2616 #define STM32_PLLS(_name, _flags, _reg, _gate_id, _mux_id)\ 2617 struct clk _name = {\ 2618 .ops = &clk_stm32_pll_ops,\ 2619 .priv = &(struct clk_stm32_pll_cfg){\ 2620 .pll_offset = (_reg),\ 2621 .gate_id = (_gate_id),\ 2622 .mux_id = (_mux_id),\ 2623 },\ 2624 .name = #_name,\ 2625 .flags = (_flags),\ 2626 .num_parents = PLL_NUM_PATENTS,\ 2627 .parents = PLL_PARENTS,\ 2628 } 2629 2630 static STM32_FIXED_RATE(ck_off, RCC_0_MHZ); 2631 2632 static STM32_FIXED_RATE(ck_obser0, 0); 2633 static STM32_FIXED_RATE(ck_obser1, 0); 2634 static STM32_FIXED_RATE(spdifsymb, 0); 2635 static STM32_FIXED_RATE(txbyteclk, 27000000); 2636 2637 /* Oscillator clocks */ 2638 static STM32_OSC(ck_hsi, 0, GATE_HSI); 2639 static STM32_OSC(ck_hse, 0, GATE_HSE); 2640 static STM32_OSC_MSI(ck_msi, 0, GATE_MSI); 2641 static STM32_OSC(ck_lsi, 0, GATE_LSI); 2642 static STM32_OSC(ck_lse, 0, GATE_LSE); 2643 2644 static STM32_HSE_DIV2(ck_hse_div2, &ck_hse, 0, GATE_HSEDIV2); 2645 static STM32_HSE_RTC(ck_hse_rtc, &ck_hse, 0, DIV_RTC); 2646 2647 static STM32_FIXED_FACTOR(i2sckin, NULL, 0, 1, 1); 2648 2649 static STM32_PLL1(ck_pll1, 0, MUX_MUXSEL5); 2650 static STM32_PLL2(ck_pll2, 0, RCC_PLL2CFGR1, GATE_PLL2, MUX_MUXSEL6); 2651 static STM32_PLL3(ck_pll3, 0, RCC_PLL3CFGR1, GATE_PLL3, MUX_MUXSEL7); 2652 static STM32_PLLS(ck_pll4, 0, RCC_PLL4CFGR1, GATE_PLL4, MUX_MUXSEL0); 2653 static STM32_PLLS(ck_pll5, 0, RCC_PLL5CFGR1, GATE_PLL5, MUX_MUXSEL1); 2654 static STM32_PLLS(ck_pll6, 0, RCC_PLL6CFGR1, GATE_PLL6, MUX_MUXSEL2); 2655 static STM32_PLLS(ck_pll7, 0, RCC_PLL7CFGR1, GATE_PLL7, MUX_MUXSEL3); 2656 static STM32_PLLS(ck_pll8, 0, RCC_PLL8CFGR1, GATE_PLL8, MUX_MUXSEL4); 2657 2658 #define STM32_FLEXGEN(_name, _flags, _flex_id)\ 2659 struct clk _name = {\ 2660 .ops = &clk_stm32_flexgen_ops,\ 2661 .priv = &(struct clk_stm32_flexgen_cfg){\ 2662 .flex_id = (_flex_id),\ 2663 },\ 2664 .name = #_name,\ 2665 .flags = (_flags) | CLK_SET_RATE_UNGATE,\ 2666 .num_parents = 15,\ 2667 .parents = {\ 2668 &ck_pll4, &ck_pll5, &ck_pll6, &ck_pll7, &ck_pll8,\ 2669 &ck_hsi, &ck_hse, &ck_msi, &ck_hsi, &ck_hse, &ck_msi,\ 2670 &spdifsymb, &i2sckin, &ck_lsi, &ck_lse\ 2671 },\ 2672 } 2673 2674 static STM32_FLEXGEN(ck_icn_hs_mcu, 0, 0); 2675 static STM32_FLEXGEN(ck_icn_sdmmc, 0, 1); 2676 static STM32_FLEXGEN(ck_icn_ddr, 0, 2); 2677 static STM32_FLEXGEN(ck_icn_display, 0, 3); 2678 static STM32_FLEXGEN(ck_icn_hsl, 0, 4); 2679 static STM32_FLEXGEN(ck_icn_nic, 0, 5); 2680 static STM32_FLEXGEN(ck_icn_vid, 0, 6); 2681 2682 static STM32_DIVIDER(ck_icn_ls_mcu, &ck_icn_hs_mcu, 0, DIV_LSMCU); 2683 2684 static STM32_FLEXGEN(ck_flexgen_07, 0, 7); 2685 static STM32_FLEXGEN(ck_flexgen_08, 0, 8); 2686 static STM32_FLEXGEN(ck_flexgen_09, 0, 9); 2687 static STM32_FLEXGEN(ck_flexgen_10, 0, 10); 2688 static STM32_FLEXGEN(ck_flexgen_11, 0, 11); 2689 static STM32_FLEXGEN(ck_flexgen_12, 0, 12); 2690 static STM32_FLEXGEN(ck_flexgen_13, 0, 13); 2691 static STM32_FLEXGEN(ck_flexgen_14, 0, 14); 2692 static STM32_FLEXGEN(ck_flexgen_15, 0, 15); 2693 static STM32_FLEXGEN(ck_flexgen_16, 0, 16); 2694 static STM32_FLEXGEN(ck_flexgen_17, 0, 17); 2695 static STM32_FLEXGEN(ck_flexgen_18, 0, 18); 2696 static STM32_FLEXGEN(ck_flexgen_19, 0, 19); 2697 static STM32_FLEXGEN(ck_flexgen_20, 0, 20); 2698 static STM32_FLEXGEN(ck_flexgen_21, 0, 21); 2699 static STM32_FLEXGEN(ck_flexgen_22, 0, 22); 2700 static STM32_FLEXGEN(ck_flexgen_23, 0, 23); 2701 static STM32_FLEXGEN(ck_flexgen_24, 0, 24); 2702 static STM32_FLEXGEN(ck_flexgen_25, 0, 25); 2703 static STM32_FLEXGEN(ck_flexgen_26, 0, 26); 2704 static STM32_FLEXGEN(ck_flexgen_27, 0, 27); 2705 static STM32_FLEXGEN(ck_flexgen_28, 0, 28); 2706 static STM32_FLEXGEN(ck_flexgen_29, 0, 29); 2707 static STM32_FLEXGEN(ck_flexgen_30, 0, 30); 2708 static STM32_FLEXGEN(ck_flexgen_31, 0, 31); 2709 static STM32_FLEXGEN(ck_flexgen_32, 0, 32); 2710 static STM32_FLEXGEN(ck_flexgen_33, 0, 33); 2711 static STM32_FLEXGEN(ck_flexgen_34, 0, 34); 2712 static STM32_FLEXGEN(ck_flexgen_35, 0, 35); 2713 static STM32_FLEXGEN(ck_flexgen_36, 0, 36); 2714 static STM32_FLEXGEN(ck_flexgen_37, 0, 37); 2715 static STM32_FLEXGEN(ck_flexgen_38, 0, 38); 2716 static STM32_FLEXGEN(ck_flexgen_39, 0, 39); 2717 static STM32_FLEXGEN(ck_flexgen_40, 0, 40); 2718 static STM32_FLEXGEN(ck_flexgen_41, 0, 41); 2719 static STM32_FLEXGEN(ck_flexgen_42, 0, 42); 2720 static STM32_FLEXGEN(ck_flexgen_43, 0, 43); 2721 static STM32_FLEXGEN(ck_flexgen_44, 0, 44); 2722 static STM32_FLEXGEN(ck_flexgen_45, 0, 45); 2723 static STM32_FLEXGEN(ck_flexgen_46, 0, 46); 2724 static STM32_FLEXGEN(ck_flexgen_47, 0, 47); 2725 static STM32_FLEXGEN(ck_flexgen_48, 0, 48); 2726 static STM32_FLEXGEN(ck_flexgen_49, 0, 49); 2727 static STM32_FLEXGEN(ck_flexgen_50, 0, 50); 2728 static STM32_FLEXGEN(ck_flexgen_51, 0, 51); 2729 static STM32_FLEXGEN(ck_flexgen_52, 0, 52); 2730 static STM32_FLEXGEN(ck_flexgen_53, 0, 53); 2731 static STM32_FLEXGEN(ck_flexgen_54, 0, 54); 2732 static STM32_FLEXGEN(ck_flexgen_55, 0, 55); 2733 static STM32_FLEXGEN(ck_flexgen_56, 0, 56); 2734 static STM32_FLEXGEN(ck_flexgen_57, 0, 57); 2735 static STM32_FLEXGEN(ck_flexgen_58, 0, 58); 2736 static STM32_FLEXGEN(ck_flexgen_59, 0, 59); 2737 static STM32_FLEXGEN(ck_flexgen_60, 0, 60); 2738 static STM32_FLEXGEN(ck_flexgen_61, 0, 61); 2739 static STM32_FLEXGEN(ck_flexgen_62, 0, 62); 2740 static STM32_FLEXGEN(ck_flexgen_63, 0, 63); 2741 2742 static struct clk ck_cpu1 = { 2743 .ops = &clk_stm32_cpu1_ops, 2744 .name = "ck_cpu1", 2745 .flags = CLK_SET_RATE_PARENT, 2746 .num_parents = 2, 2747 .parents = { &ck_pll1, &ck_flexgen_63 }, 2748 }; 2749 2750 static STM32_DIVIDER(ck_icn_apb1, &ck_icn_ls_mcu, 0, DIV_APB1); 2751 static STM32_DIVIDER(ck_icn_apb2, &ck_icn_ls_mcu, 0, DIV_APB2); 2752 static STM32_DIVIDER(ck_icn_apb3, &ck_icn_ls_mcu, 0, DIV_APB3); 2753 static STM32_DIVIDER(ck_icn_apb4, &ck_icn_ls_mcu, 0, DIV_APB4); 2754 static STM32_COMPOSITE(ck_icn_apbdbg, 1, { &ck_icn_ls_mcu }, 0, 2755 GATE_DBG, DIV_APBDBG, NO_MUX); 2756 2757 #define STM32_TIMER(_name, _parent, _flags, _apbdiv, _timpre)\ 2758 struct clk _name = {\ 2759 .ops = &ck_timer_ops,\ 2760 .priv = &(struct clk_stm32_timer_cfg){\ 2761 .apbdiv = (_apbdiv),\ 2762 .timpre = (_timpre),\ 2763 },\ 2764 .name = #_name,\ 2765 .flags = (_flags),\ 2766 .num_parents = 1,\ 2767 .parents = { _parent },\ 2768 } 2769 2770 /* Kernel Timers */ 2771 static STM32_TIMER(ck_timg1, &ck_icn_apb1, 0, RCC_APB1DIVR, RCC_TIMG1PRER); 2772 static STM32_TIMER(ck_timg2, &ck_icn_apb2, 0, RCC_APB2DIVR, RCC_TIMG2PRER); 2773 2774 /* Clocks under RCC RIF protection */ 2775 static STM32_GATE(ck_sys_dbg, &ck_icn_apbdbg, 0, GATE_DBG); 2776 static STM32_GATE(ck_icn_p_stm, &ck_icn_apbdbg, 0, GATE_STM); 2777 static STM32_GATE(ck_icn_s_stm, &ck_icn_ls_mcu, 0, GATE_STM); 2778 static STM32_GATE(ck_ker_tsdbg, &ck_flexgen_43, 0, GATE_DBG); 2779 static STM32_GATE(ck_ker_tpiu, &ck_flexgen_44, 0, GATE_TRACE); 2780 static STM32_GATE(ck_icn_p_etr, &ck_icn_apbdbg, 0, GATE_ETR); 2781 static STM32_GATE(ck_icn_m_etr, &ck_flexgen_45, 0, GATE_ETR); 2782 static STM32_GATE(ck_sys_atb, &ck_flexgen_45, 0, GATE_DBG); 2783 2784 static STM32_GATE(ck_icn_s_sysram, &ck_icn_hs_mcu, 0, GATE_SYSRAM); 2785 static STM32_GATE(ck_icn_s_vderam, &ck_icn_hs_mcu, 0, GATE_VDERAM); 2786 static STM32_GATE(ck_icn_s_retram, &ck_icn_hs_mcu, 0, GATE_RETRAM); 2787 static STM32_GATE(ck_icn_s_bkpsram, &ck_icn_ls_mcu, 0, GATE_BKPSRAM); 2788 static STM32_GATE(ck_icn_s_sram1, &ck_icn_hs_mcu, 0, GATE_SRAM1); 2789 static STM32_GATE(ck_icn_s_sram2, &ck_icn_hs_mcu, 0, GATE_SRAM2); 2790 static STM32_GATE(ck_icn_s_lpsram1, &ck_icn_ls_mcu, 0, GATE_LPSRAM1); 2791 static STM32_GATE(ck_icn_s_lpsram2, &ck_icn_ls_mcu, 0, GATE_LPSRAM2); 2792 static STM32_GATE(ck_icn_s_lpsram3, &ck_icn_ls_mcu, 0, GATE_LPSRAM3); 2793 static STM32_GATE(ck_icn_p_hpdma1, &ck_icn_ls_mcu, 0, GATE_HPDMA1); 2794 static STM32_GATE(ck_icn_p_hpdma2, &ck_icn_ls_mcu, 0, GATE_HPDMA2); 2795 static STM32_GATE(ck_icn_p_hpdma3, &ck_icn_ls_mcu, 0, GATE_HPDMA3); 2796 static STM32_GATE(ck_icn_p_lpdma, &ck_icn_ls_mcu, 0, GATE_LPDMA); 2797 static STM32_GATE(ck_icn_p_ipcc1, &ck_icn_ls_mcu, 0, GATE_IPCC1); 2798 static STM32_GATE(ck_icn_p_ipcc2, &ck_icn_ls_mcu, 0, GATE_IPCC2); 2799 static STM32_GATE(ck_icn_p_hsem, &ck_icn_ls_mcu, 0, GATE_HSEM); 2800 static STM32_GATE(ck_icn_p_gpioa, &ck_icn_ls_mcu, 0, GATE_GPIOA); 2801 static STM32_GATE(ck_icn_p_gpiob, &ck_icn_ls_mcu, 0, GATE_GPIOB); 2802 static STM32_GATE(ck_icn_p_gpioc, &ck_icn_ls_mcu, 0, GATE_GPIOC); 2803 static STM32_GATE(ck_icn_p_gpiod, &ck_icn_ls_mcu, 0, GATE_GPIOD); 2804 static STM32_GATE(ck_icn_p_gpioe, &ck_icn_ls_mcu, 0, GATE_GPIOE); 2805 static STM32_GATE(ck_icn_p_gpiof, &ck_icn_ls_mcu, 0, GATE_GPIOF); 2806 static STM32_GATE(ck_icn_p_gpiog, &ck_icn_ls_mcu, 0, GATE_GPIOG); 2807 static STM32_GATE(ck_icn_p_gpioh, &ck_icn_ls_mcu, 0, GATE_GPIOH); 2808 static STM32_GATE(ck_icn_p_gpioi, &ck_icn_ls_mcu, 0, GATE_GPIOI); 2809 static STM32_GATE(ck_icn_p_gpioj, &ck_icn_ls_mcu, 0, GATE_GPIOJ); 2810 static STM32_GATE(ck_icn_p_gpiok, &ck_icn_ls_mcu, 0, GATE_GPIOK); 2811 static STM32_GATE(ck_icn_p_gpioz, &ck_icn_ls_mcu, 0, GATE_GPIOZ); 2812 static STM32_GATE(ck_icn_p_rtc, &ck_icn_ls_mcu, 0, GATE_RTC); 2813 static STM32_COMPOSITE(ck_rtc, 4, 2814 PARENT(&ck_off, &ck_lse, &ck_lsi, &ck_hse_rtc), 2815 0, GATE_RTCCK, NO_DIV, MUX_RTC); 2816 static STM32_GATE(ck_icn_p_bsec, &ck_icn_apb3, 0, GATE_BSEC); 2817 static STM32_GATE(ck_icn_p_ddrphyc, &ck_icn_ls_mcu, 0, GATE_DDRPHYCAPB); 2818 static STM32_GATE(ck_icn_p_risaf4, &ck_icn_ls_mcu, 0, GATE_DDRCP); 2819 static STM32_GATE(ck_icn_s_ddr, &ck_icn_ddr, 0, GATE_DDRCP); 2820 static STM32_GATE(ck_icn_p_ddrc, &ck_icn_apb4, 0, GATE_DDRCAPB); 2821 static STM32_GATE(ck_icn_p_ddrcfg, &ck_icn_apb4, 0, GATE_DDRCFG); 2822 static STM32_GATE(ck_icn_p_syscpu1, &ck_icn_ls_mcu, 0, GATE_SYSCPU1); 2823 static STM32_GATE(ck_icn_p_is2m, &ck_icn_apb3, 0, GATE_IS2M); 2824 static STM32_COMPOSITE(ck_mco1, 2, PARENT(&ck_flexgen_61, &ck_obser0), 0, 2825 GATE_MCO1, NO_DIV, MUX_MCO1); 2826 static STM32_COMPOSITE(ck_mco2, 2, PARENT(&ck_flexgen_62, &ck_obser1), 0, 2827 GATE_MCO2, NO_DIV, MUX_MCO2); 2828 static STM32_GATE(ck_icn_s_ospi1, &ck_icn_hs_mcu, 0, GATE_OSPI1); 2829 static STM32_GATE(ck_ker_ospi1, &ck_flexgen_48, 0, GATE_OSPI1); 2830 static STM32_GATE(ck_icn_s_ospi2, &ck_icn_hs_mcu, 0, GATE_OSPI2); 2831 static STM32_GATE(ck_ker_ospi2, &ck_flexgen_49, 0, GATE_OSPI2); 2832 static STM32_GATE(ck_icn_p_fmc, &ck_icn_ls_mcu, 0, GATE_FMC); 2833 static STM32_GATE(ck_ker_fmc, &ck_flexgen_50, 0, GATE_FMC); 2834 2835 /* Kernel Clocks */ 2836 static STM32_GATE(ck_icn_p_cci, &ck_icn_ls_mcu, 0, GATE_CCI); 2837 static STM32_GATE(ck_icn_p_crc, &ck_icn_ls_mcu, 0, GATE_CRC); 2838 static STM32_GATE(ck_icn_p_ospiiom, &ck_icn_ls_mcu, 0, GATE_OSPIIOM); 2839 static STM32_GATE(ck_icn_p_hash, &ck_icn_ls_mcu, 0, GATE_HASH); 2840 static STM32_GATE(ck_icn_p_rng, &ck_icn_ls_mcu, 0, GATE_RNG); 2841 static STM32_GATE(ck_icn_p_cryp1, &ck_icn_ls_mcu, 0, GATE_CRYP1); 2842 static STM32_GATE(ck_icn_p_cryp2, &ck_icn_ls_mcu, 0, GATE_CRYP2); 2843 static STM32_GATE(ck_icn_p_saes, &ck_icn_ls_mcu, 0, GATE_SAES); 2844 static STM32_GATE(ck_icn_p_pka, &ck_icn_ls_mcu, 0, GATE_PKA); 2845 static STM32_GATE(ck_icn_p_adf1, &ck_icn_ls_mcu, 0, GATE_ADF1); 2846 static STM32_GATE(ck_icn_p_iwdg5, &ck_icn_ls_mcu, 0, GATE_IWDG5); 2847 static STM32_GATE(ck_icn_p_wwdg2, &ck_icn_ls_mcu, 0, GATE_WWDG2); 2848 static STM32_GATE(ck_icn_p_eth1, &ck_icn_ls_mcu, 0, GATE_ETH1); 2849 static STM32_GATE(ck_icn_p_ethsw, &ck_icn_ls_mcu, 0, GATE_ETHSWMAC); 2850 static STM32_GATE(ck_icn_p_eth2, &ck_icn_ls_mcu, 0, GATE_ETH2); 2851 static STM32_GATE(ck_icn_p_pcie, &ck_icn_ls_mcu, 0, GATE_PCIE); 2852 static STM32_GATE(ck_icn_p_adc12, &ck_icn_ls_mcu, 0, GATE_ADC12); 2853 static STM32_GATE(ck_icn_p_adc3, &ck_icn_ls_mcu, 0, GATE_ADC3); 2854 static STM32_GATE(ck_icn_p_mdf1, &ck_icn_ls_mcu, 0, GATE_MDF1); 2855 static STM32_GATE(ck_icn_p_spi8, &ck_icn_ls_mcu, 0, GATE_SPI8); 2856 static STM32_GATE(ck_icn_p_lpuart1, &ck_icn_ls_mcu, 0, GATE_LPUART1); 2857 static STM32_GATE(ck_icn_p_i2c8, &ck_icn_ls_mcu, 0, GATE_I2C8); 2858 static STM32_GATE(ck_icn_p_lptim3, &ck_icn_ls_mcu, 0, GATE_LPTIM3); 2859 static STM32_GATE(ck_icn_p_lptim4, &ck_icn_ls_mcu, 0, GATE_LPTIM4); 2860 static STM32_GATE(ck_icn_p_lptim5, &ck_icn_ls_mcu, 0, GATE_LPTIM5); 2861 static STM32_GATE(ck_icn_m_sdmmc1, &ck_icn_sdmmc, 0, GATE_SDMMC1); 2862 static STM32_GATE(ck_icn_m_sdmmc2, &ck_icn_sdmmc, 0, GATE_SDMMC2); 2863 static STM32_GATE(ck_icn_m_sdmmc3, &ck_icn_sdmmc, 0, GATE_SDMMC3); 2864 static STM32_GATE(ck_icn_m_usb2ohci, &ck_icn_hsl, 0, GATE_USB2); 2865 static STM32_GATE(ck_icn_m_usb2ehci, &ck_icn_hsl, 0, GATE_USB2); 2866 static STM32_GATE(ck_icn_m_usb3dr, &ck_icn_hsl, 0, GATE_USB3DR); 2867 2868 static STM32_GATE(ck_icn_p_tim2, &ck_icn_apb1, 0, GATE_TIM2); 2869 static STM32_GATE(ck_icn_p_tim3, &ck_icn_apb1, 0, GATE_TIM3); 2870 static STM32_GATE(ck_icn_p_tim4, &ck_icn_apb1, 0, GATE_TIM4); 2871 static STM32_GATE(ck_icn_p_tim5, &ck_icn_apb1, 0, GATE_TIM5); 2872 static STM32_GATE(ck_icn_p_tim6, &ck_icn_apb1, 0, GATE_TIM6); 2873 static STM32_GATE(ck_icn_p_tim7, &ck_icn_apb1, 0, GATE_TIM7); 2874 static STM32_GATE(ck_icn_p_tim10, &ck_icn_apb1, 0, GATE_TIM10); 2875 static STM32_GATE(ck_icn_p_tim11, &ck_icn_apb1, 0, GATE_TIM11); 2876 static STM32_GATE(ck_icn_p_tim12, &ck_icn_apb1, 0, GATE_TIM12); 2877 static STM32_GATE(ck_icn_p_tim13, &ck_icn_apb1, 0, GATE_TIM13); 2878 static STM32_GATE(ck_icn_p_tim14, &ck_icn_apb1, 0, GATE_TIM14); 2879 static STM32_GATE(ck_icn_p_lptim1, &ck_icn_apb1, 0, GATE_LPTIM1); 2880 static STM32_GATE(ck_icn_p_lptim2, &ck_icn_apb1, 0, GATE_LPTIM2); 2881 static STM32_GATE(ck_icn_p_spi2, &ck_icn_apb1, 0, GATE_SPI2); 2882 static STM32_GATE(ck_icn_p_spi3, &ck_icn_apb1, 0, GATE_SPI3); 2883 static STM32_GATE(ck_icn_p_spdifrx, &ck_icn_apb1, 0, GATE_SPDIFRX); 2884 static STM32_GATE(ck_icn_p_usart2, &ck_icn_apb1, 0, GATE_USART2); 2885 static STM32_GATE(ck_icn_p_usart3, &ck_icn_apb1, 0, GATE_USART3); 2886 static STM32_GATE(ck_icn_p_uart4, &ck_icn_apb1, 0, GATE_UART4); 2887 static STM32_GATE(ck_icn_p_uart5, &ck_icn_apb1, 0, GATE_UART5); 2888 static STM32_GATE(ck_icn_p_i2c1, &ck_icn_apb1, 0, GATE_I2C1); 2889 static STM32_GATE(ck_icn_p_i2c2, &ck_icn_apb1, 0, GATE_I2C2); 2890 static STM32_GATE(ck_icn_p_i2c3, &ck_icn_apb1, 0, GATE_I2C3); 2891 static STM32_GATE(ck_icn_p_i2c4, &ck_icn_apb1, 0, GATE_I2C4); 2892 static STM32_GATE(ck_icn_p_i2c5, &ck_icn_apb1, 0, GATE_I2C5); 2893 static STM32_GATE(ck_icn_p_i2c6, &ck_icn_apb1, 0, GATE_I2C6); 2894 static STM32_GATE(ck_icn_p_i2c7, &ck_icn_apb1, 0, GATE_I2C7); 2895 static STM32_GATE(ck_icn_p_i3c1, &ck_icn_apb1, 0, GATE_I3C1); 2896 static STM32_GATE(ck_icn_p_i3c2, &ck_icn_apb1, 0, GATE_I3C2); 2897 static STM32_GATE(ck_icn_p_i3c3, &ck_icn_apb1, 0, GATE_I3C3); 2898 2899 static STM32_GATE(ck_icn_p_i3c4, &ck_icn_ls_mcu, 0, GATE_I3C4); 2900 2901 static STM32_GATE(ck_icn_p_tim1, &ck_icn_apb2, 0, GATE_TIM1); 2902 static STM32_GATE(ck_icn_p_tim8, &ck_icn_apb2, 0, GATE_TIM8); 2903 static STM32_GATE(ck_icn_p_tim15, &ck_icn_apb2, 0, GATE_TIM15); 2904 static STM32_GATE(ck_icn_p_tim16, &ck_icn_apb2, 0, GATE_TIM16); 2905 static STM32_GATE(ck_icn_p_tim17, &ck_icn_apb2, 0, GATE_TIM17); 2906 static STM32_GATE(ck_icn_p_tim20, &ck_icn_apb2, 0, GATE_TIM20); 2907 static STM32_GATE(ck_icn_p_sai1, &ck_icn_apb2, 0, GATE_SAI1); 2908 static STM32_GATE(ck_icn_p_sai2, &ck_icn_apb2, 0, GATE_SAI2); 2909 static STM32_GATE(ck_icn_p_sai3, &ck_icn_apb2, 0, GATE_SAI3); 2910 static STM32_GATE(ck_icn_p_sai4, &ck_icn_apb2, 0, GATE_SAI4); 2911 static STM32_GATE(ck_icn_p_usart1, &ck_icn_apb2, 0, GATE_USART1); 2912 static STM32_GATE(ck_icn_p_usart6, &ck_icn_apb2, 0, GATE_USART6); 2913 static STM32_GATE(ck_icn_p_uart7, &ck_icn_apb2, 0, GATE_UART7); 2914 static STM32_GATE(ck_icn_p_uart8, &ck_icn_apb2, 0, GATE_UART8); 2915 static STM32_GATE(ck_icn_p_uart9, &ck_icn_apb2, 0, GATE_UART9); 2916 static STM32_GATE(ck_icn_p_fdcan, &ck_icn_apb2, 0, GATE_FDCAN); 2917 static STM32_GATE(ck_icn_p_spi1, &ck_icn_apb2, 0, GATE_SPI1); 2918 static STM32_GATE(ck_icn_p_spi4, &ck_icn_apb2, 0, GATE_SPI4); 2919 static STM32_GATE(ck_icn_p_spi5, &ck_icn_apb2, 0, GATE_SPI5); 2920 static STM32_GATE(ck_icn_p_spi6, &ck_icn_apb2, 0, GATE_SPI6); 2921 static STM32_GATE(ck_icn_p_spi7, &ck_icn_apb2, 0, GATE_SPI7); 2922 static STM32_GATE(ck_icn_p_iwdg1, &ck_icn_apb3, 0, GATE_IWDG1); 2923 static STM32_GATE(ck_icn_p_iwdg2, &ck_icn_apb3, 0, GATE_IWDG2); 2924 static STM32_GATE(ck_icn_p_iwdg3, &ck_icn_apb3, 0, GATE_IWDG3); 2925 static STM32_GATE(ck_icn_p_iwdg4, &ck_icn_apb3, 0, GATE_IWDG4); 2926 static STM32_GATE(ck_icn_p_wwdg1, &ck_icn_apb3, 0, GATE_WWDG1); 2927 static STM32_GATE(ck_icn_p_vref, &ck_icn_apb3, 0, GATE_VREF); 2928 static STM32_GATE(ck_icn_p_dts, &ck_icn_apb3, 0, GATE_DTS); 2929 static STM32_GATE(ck_icn_p_serc, &ck_icn_apb3, 0, GATE_SERC); 2930 static STM32_GATE(ck_icn_p_hdp, &ck_icn_apb3, 0, GATE_HDP); 2931 static STM32_GATE(ck_icn_p_dsi, &ck_icn_apb4, 0, GATE_DSI); 2932 static STM32_GATE(ck_icn_p_ltdc, &ck_icn_apb4, 0, GATE_LTDC); 2933 static STM32_GATE(ck_icn_p_csi, &ck_icn_apb4, 0, GATE_CSI); 2934 static STM32_GATE(ck_icn_p_dcmipp, &ck_icn_apb4, 0, GATE_DCMIPP); 2935 static STM32_GATE(ck_icn_p_lvds, &ck_icn_apb4, 0, GATE_LVDS); 2936 static STM32_GATE(ck_icn_p_gicv2m, &ck_icn_apb4, 0, GATE_GICV2M); 2937 static STM32_GATE(ck_icn_p_usbtc, &ck_icn_apb4, 0, GATE_USBTC); 2938 static STM32_GATE(ck_icn_p_usb3pciephy, &ck_icn_apb4, 0, GATE_USB3PCIEPHY); 2939 static STM32_GATE(ck_icn_p_stgen, &ck_icn_apb4, 0, GATE_STGEN); 2940 static STM32_GATE(ck_icn_p_vdec, &ck_icn_apb4, 0, GATE_VDEC); 2941 static STM32_GATE(ck_icn_p_venc, &ck_icn_apb4, 0, GATE_VENC); 2942 2943 static STM32_GATE(ck_ker_tim2, &ck_timg1, 0, GATE_TIM2); 2944 static STM32_GATE(ck_ker_tim3, &ck_timg1, 0, GATE_TIM3); 2945 static STM32_GATE(ck_ker_tim4, &ck_timg1, 0, GATE_TIM4); 2946 static STM32_GATE(ck_ker_tim5, &ck_timg1, 0, GATE_TIM5); 2947 static STM32_GATE(ck_ker_tim6, &ck_timg1, 0, GATE_TIM6); 2948 static STM32_GATE(ck_ker_tim7, &ck_timg1, 0, GATE_TIM7); 2949 static STM32_GATE(ck_ker_tim10, &ck_timg1, 0, GATE_TIM10); 2950 static STM32_GATE(ck_ker_tim11, &ck_timg1, 0, GATE_TIM11); 2951 static STM32_GATE(ck_ker_tim12, &ck_timg1, 0, GATE_TIM12); 2952 static STM32_GATE(ck_ker_tim13, &ck_timg1, 0, GATE_TIM13); 2953 static STM32_GATE(ck_ker_tim14, &ck_timg1, 0, GATE_TIM14); 2954 static STM32_GATE(ck_ker_tim1, &ck_timg2, 0, GATE_TIM1); 2955 static STM32_GATE(ck_ker_tim8, &ck_timg2, 0, GATE_TIM8); 2956 static STM32_GATE(ck_ker_tim15, &ck_timg2, 0, GATE_TIM15); 2957 static STM32_GATE(ck_ker_tim16, &ck_timg2, 0, GATE_TIM16); 2958 static STM32_GATE(ck_ker_tim17, &ck_timg2, 0, GATE_TIM17); 2959 static STM32_GATE(ck_ker_tim20, &ck_timg2, 0, GATE_TIM20); 2960 static STM32_GATE(ck_ker_lptim1, &ck_flexgen_07, 0, GATE_LPTIM1); 2961 static STM32_GATE(ck_ker_lptim2, &ck_flexgen_07, 0, GATE_LPTIM2); 2962 static STM32_GATE(ck_ker_usart2, &ck_flexgen_08, 0, GATE_USART2); 2963 static STM32_GATE(ck_ker_uart4, &ck_flexgen_08, 0, GATE_UART4); 2964 static STM32_GATE(ck_ker_usart3, &ck_flexgen_09, 0, GATE_USART3); 2965 static STM32_GATE(ck_ker_uart5, &ck_flexgen_09, 0, GATE_UART5); 2966 static STM32_GATE(ck_ker_spi2, &ck_flexgen_10, 0, GATE_SPI2); 2967 static STM32_GATE(ck_ker_spi3, &ck_flexgen_10, 0, GATE_SPI3); 2968 static STM32_GATE(ck_ker_spdifrx, &ck_flexgen_11, 0, GATE_SPDIFRX); 2969 static STM32_GATE(ck_ker_i2c1, &ck_flexgen_12, 0, GATE_I2C1); 2970 static STM32_GATE(ck_ker_i2c2, &ck_flexgen_12, 0, GATE_I2C2); 2971 static STM32_GATE(ck_ker_i3c1, &ck_flexgen_12, 0, GATE_I3C1); 2972 static STM32_GATE(ck_ker_i3c2, &ck_flexgen_12, 0, GATE_I3C2); 2973 static STM32_GATE(ck_ker_i2c3, &ck_flexgen_13, 0, GATE_I2C3); 2974 static STM32_GATE(ck_ker_i2c5, &ck_flexgen_13, 0, GATE_I2C5); 2975 static STM32_GATE(ck_ker_i3c3, &ck_flexgen_13, 0, GATE_I3C3); 2976 static STM32_GATE(ck_ker_i2c4, &ck_flexgen_14, 0, GATE_I2C4); 2977 static STM32_GATE(ck_ker_i2c6, &ck_flexgen_14, 0, GATE_I2C6); 2978 static STM32_GATE(ck_ker_i2c7, &ck_flexgen_15, 0, GATE_I2C7); 2979 static STM32_GATE(ck_ker_spi1, &ck_flexgen_16, 0, GATE_SPI1); 2980 static STM32_GATE(ck_ker_spi4, &ck_flexgen_17, 0, GATE_SPI4); 2981 static STM32_GATE(ck_ker_spi5, &ck_flexgen_17, 0, GATE_SPI5); 2982 static STM32_GATE(ck_ker_spi6, &ck_flexgen_18, 0, GATE_SPI6); 2983 static STM32_GATE(ck_ker_spi7, &ck_flexgen_18, 0, GATE_SPI7); 2984 static STM32_GATE(ck_ker_usart1, &ck_flexgen_19, 0, GATE_USART1); 2985 static STM32_GATE(ck_ker_usart6, &ck_flexgen_20, 0, GATE_USART6); 2986 static STM32_GATE(ck_ker_uart7, &ck_flexgen_21, 0, GATE_UART7); 2987 static STM32_GATE(ck_ker_uart8, &ck_flexgen_21, 0, GATE_UART8); 2988 static STM32_GATE(ck_ker_uart9, &ck_flexgen_22, 0, GATE_UART9); 2989 static STM32_GATE(ck_ker_mdf1, &ck_flexgen_23, 0, GATE_MDF1); 2990 static STM32_GATE(ck_ker_sai1, &ck_flexgen_23, 0, GATE_SAI1); 2991 static STM32_GATE(ck_ker_sai2, &ck_flexgen_24, 0, GATE_SAI2); 2992 static STM32_GATE(ck_ker_sai3, &ck_flexgen_25, 0, GATE_SAI3); 2993 static STM32_GATE(ck_ker_sai4, &ck_flexgen_25, 0, GATE_SAI4); 2994 static STM32_GATE(ck_ker_fdcan, &ck_flexgen_26, 0, GATE_FDCAN); 2995 static STM32_GATE(ck_ker_csi, &ck_flexgen_29, 0, GATE_CSI); 2996 static STM32_GATE(ck_ker_csitxesc, &ck_flexgen_30, 0, GATE_CSI); 2997 static STM32_GATE(ck_ker_csiphy, &ck_flexgen_31, 0, GATE_CSI); 2998 static STM32_GATE(ck_ker_stgen, &ck_flexgen_33, CLK_SET_RATE_PARENT, 2999 GATE_STGEN); 3000 static STM32_GATE(ck_ker_usbtc, &ck_flexgen_35, 0, GATE_USBTC); 3001 static STM32_GATE(ck_ker_i3c4, &ck_flexgen_36, 0, GATE_I3C4); 3002 static STM32_GATE(ck_ker_spi8, &ck_flexgen_37, 0, GATE_SPI8); 3003 static STM32_GATE(ck_ker_i2c8, &ck_flexgen_38, 0, GATE_I2C8); 3004 static STM32_GATE(ck_ker_lpuart1, &ck_flexgen_39, 0, GATE_LPUART1); 3005 static STM32_GATE(ck_ker_lptim3, &ck_flexgen_40, 0, GATE_LPTIM3); 3006 static STM32_GATE(ck_ker_lptim4, &ck_flexgen_41, 0, GATE_LPTIM4); 3007 static STM32_GATE(ck_ker_lptim5, &ck_flexgen_41, 0, GATE_LPTIM5); 3008 static STM32_GATE(ck_ker_adf1, &ck_flexgen_42, 0, GATE_ADF1); 3009 static STM32_GATE(ck_ker_sdmmc1, &ck_flexgen_51, 0, GATE_SDMMC1); 3010 static STM32_GATE(ck_ker_sdmmc2, &ck_flexgen_52, 0, GATE_SDMMC2); 3011 static STM32_GATE(ck_ker_sdmmc3, &ck_flexgen_53, 0, GATE_SDMMC3); 3012 static STM32_GATE(ck_ker_eth1, &ck_flexgen_54, 0, GATE_ETH1); 3013 static STM32_GATE(ck_ker_ethsw, &ck_flexgen_54, 0, GATE_ETHSW); 3014 static STM32_GATE(ck_ker_eth2, &ck_flexgen_55, 0, GATE_ETH2); 3015 static STM32_GATE(ck_ker_eth1ptp, &ck_flexgen_56, 0, GATE_ETH1); 3016 static STM32_GATE(ck_ker_eth2ptp, &ck_flexgen_56, 0, GATE_ETH2); 3017 static STM32_GATE(ck_ker_usb2phy2, &ck_flexgen_58, 0, GATE_USB3DR); 3018 static STM32_GATE(ck_icn_m_gpu, &ck_flexgen_59, 0, GATE_GPU); 3019 static STM32_GATE(ck_ker_gpu, &ck_pll3, 0, GATE_GPU); 3020 static STM32_GATE(ck_ker_ethswref, &ck_flexgen_60, 0, GATE_ETHSWREF); 3021 3022 static STM32_GATE(ck_ker_eth1stp, &ck_icn_ls_mcu, 0, GATE_ETH1STP); 3023 static STM32_GATE(ck_ker_eth2stp, &ck_icn_ls_mcu, 0, GATE_ETH2STP); 3024 3025 static STM32_GATE(ck_ker_ltdc, &ck_flexgen_27, CLK_SET_RATE_PARENT, 3026 GATE_LTDC); 3027 3028 static STM32_COMPOSITE(ck_ker_adc12, 2, PARENT(&ck_flexgen_46, &ck_icn_ls_mcu), 3029 0, GATE_ADC12, NO_DIV, MUX_ADC12); 3030 3031 static STM32_COMPOSITE(ck_ker_adc3, 3, PARENT(&ck_flexgen_47, &ck_icn_ls_mcu, 3032 &ck_flexgen_46), 3033 0, GATE_ADC3, NO_DIV, MUX_ADC3); 3034 3035 static STM32_COMPOSITE(ck_ker_usb2phy1, 2, PARENT(&ck_flexgen_57, 3036 &ck_hse_div2), 3037 0, GATE_USB2PHY1, NO_DIV, MUX_USB2PHY1); 3038 3039 static STM32_COMPOSITE(ck_ker_usb2phy2_en, 2, PARENT(&ck_flexgen_58, 3040 &ck_hse_div2), 3041 0, GATE_USB2PHY2, NO_DIV, MUX_USB2PHY2); 3042 3043 static STM32_COMPOSITE(ck_ker_usb3pciephy, 2, PARENT(&ck_flexgen_34, 3044 &ck_hse_div2), 3045 0, GATE_USB3PCIEPHY, NO_DIV, MUX_USB3PCIEPHY); 3046 3047 static STM32_COMPOSITE(clk_lanebyte, 2, PARENT(&txbyteclk, &ck_ker_ltdc), 3048 0, GATE_DSI, NO_DIV, MUX_DSIBLANE); 3049 3050 static STM32_COMPOSITE(ck_phy_dsi, 2, PARENT(&ck_flexgen_28, &ck_hse), 3051 0, GATE_DSI, NO_DIV, MUX_DSIPHY); 3052 3053 static STM32_COMPOSITE(ck_ker_lvdsphy, 2, PARENT(&ck_flexgen_32, &ck_hse), 3054 0, GATE_LVDS, NO_DIV, MUX_LVDSPHY); 3055 3056 static STM32_COMPOSITE(ck_ker_dts, 3, PARENT(&ck_hsi, &ck_hse, &ck_msi), 3057 0, GATE_DTS, NO_DIV, MUX_DTS); 3058 3059 enum { 3060 CK_OFF = STM32MP25_LAST_CLK, 3061 I2SCKIN, 3062 SPDIFSYMB, 3063 CK_HSE_RTC, 3064 TXBYTECLK, 3065 CK_OBSER0, 3066 CK_OBSER1, 3067 STM32MP25_ALL_CLK_NB 3068 }; 3069 3070 static STM32_GATE(ck_ker_eth1mac, &ck_icn_ls_mcu, 0, GATE_ETH1MAC); 3071 static STM32_GATE(ck_ker_eth1tx, &ck_icn_ls_mcu, 0, GATE_ETH1TX); 3072 static STM32_GATE(ck_ker_eth1rx, &ck_icn_ls_mcu, 0, GATE_ETH1RX); 3073 static STM32_GATE(ck_ker_eth2mac, &ck_icn_ls_mcu, 0, GATE_ETH2MAC); 3074 static STM32_GATE(ck_ker_eth2tx, &ck_icn_ls_mcu, 0, GATE_ETH2TX); 3075 static STM32_GATE(ck_ker_eth2rx, &ck_icn_ls_mcu, 0, GATE_ETH2RX); 3076 3077 static struct clk *stm32mp25_clk_provided[STM32MP25_ALL_CLK_NB] = { 3078 [HSI_CK] = &ck_hsi, 3079 [HSE_CK] = &ck_hse, 3080 [MSI_CK] = &ck_msi, 3081 [LSI_CK] = &ck_lsi, 3082 [LSE_CK] = &ck_lse, 3083 3084 [HSE_DIV2_CK] = &ck_hse_div2, 3085 3086 [PLL1_CK] = &ck_pll1, 3087 [PLL2_CK] = &ck_pll2, 3088 [PLL3_CK] = &ck_pll3, 3089 [PLL4_CK] = &ck_pll4, 3090 [PLL5_CK] = &ck_pll5, 3091 [PLL6_CK] = &ck_pll6, 3092 [PLL7_CK] = &ck_pll7, 3093 [PLL8_CK] = &ck_pll8, 3094 3095 [CK_ICN_HS_MCU] = &ck_icn_hs_mcu, 3096 [CK_ICN_LS_MCU] = &ck_icn_ls_mcu, 3097 3098 [CK_ICN_SDMMC] = &ck_icn_sdmmc, 3099 [CK_ICN_DDR] = &ck_icn_ddr, 3100 [CK_ICN_DISPLAY] = &ck_icn_display, 3101 [CK_ICN_HSL] = &ck_icn_hsl, 3102 [CK_ICN_NIC] = &ck_icn_nic, 3103 [CK_ICN_VID] = &ck_icn_vid, 3104 [CK_FLEXGEN_07] = &ck_flexgen_07, 3105 [CK_FLEXGEN_08] = &ck_flexgen_08, 3106 [CK_FLEXGEN_09] = &ck_flexgen_09, 3107 [CK_FLEXGEN_10] = &ck_flexgen_10, 3108 [CK_FLEXGEN_11] = &ck_flexgen_11, 3109 [CK_FLEXGEN_12] = &ck_flexgen_12, 3110 [CK_FLEXGEN_13] = &ck_flexgen_13, 3111 [CK_FLEXGEN_14] = &ck_flexgen_14, 3112 [CK_FLEXGEN_15] = &ck_flexgen_15, 3113 [CK_FLEXGEN_16] = &ck_flexgen_16, 3114 [CK_FLEXGEN_17] = &ck_flexgen_17, 3115 [CK_FLEXGEN_18] = &ck_flexgen_18, 3116 [CK_FLEXGEN_19] = &ck_flexgen_19, 3117 [CK_FLEXGEN_20] = &ck_flexgen_20, 3118 [CK_FLEXGEN_21] = &ck_flexgen_21, 3119 [CK_FLEXGEN_22] = &ck_flexgen_22, 3120 [CK_FLEXGEN_23] = &ck_flexgen_23, 3121 [CK_FLEXGEN_24] = &ck_flexgen_24, 3122 [CK_FLEXGEN_25] = &ck_flexgen_25, 3123 [CK_FLEXGEN_26] = &ck_flexgen_26, 3124 [CK_FLEXGEN_27] = &ck_flexgen_27, 3125 [CK_FLEXGEN_28] = &ck_flexgen_28, 3126 [CK_FLEXGEN_29] = &ck_flexgen_29, 3127 [CK_FLEXGEN_30] = &ck_flexgen_30, 3128 [CK_FLEXGEN_31] = &ck_flexgen_31, 3129 [CK_FLEXGEN_32] = &ck_flexgen_32, 3130 [CK_FLEXGEN_33] = &ck_flexgen_33, 3131 [CK_FLEXGEN_34] = &ck_flexgen_34, 3132 [CK_FLEXGEN_35] = &ck_flexgen_35, 3133 [CK_FLEXGEN_36] = &ck_flexgen_36, 3134 [CK_FLEXGEN_37] = &ck_flexgen_37, 3135 [CK_FLEXGEN_38] = &ck_flexgen_38, 3136 [CK_FLEXGEN_39] = &ck_flexgen_39, 3137 [CK_FLEXGEN_40] = &ck_flexgen_40, 3138 [CK_FLEXGEN_41] = &ck_flexgen_41, 3139 [CK_FLEXGEN_42] = &ck_flexgen_42, 3140 [CK_FLEXGEN_43] = &ck_flexgen_43, 3141 [CK_FLEXGEN_44] = &ck_flexgen_44, 3142 [CK_FLEXGEN_45] = &ck_flexgen_45, 3143 [CK_FLEXGEN_46] = &ck_flexgen_46, 3144 [CK_FLEXGEN_47] = &ck_flexgen_47, 3145 [CK_FLEXGEN_48] = &ck_flexgen_48, 3146 [CK_FLEXGEN_49] = &ck_flexgen_49, 3147 [CK_FLEXGEN_50] = &ck_flexgen_50, 3148 [CK_FLEXGEN_51] = &ck_flexgen_51, 3149 [CK_FLEXGEN_52] = &ck_flexgen_52, 3150 [CK_FLEXGEN_53] = &ck_flexgen_53, 3151 [CK_FLEXGEN_54] = &ck_flexgen_54, 3152 [CK_FLEXGEN_55] = &ck_flexgen_55, 3153 [CK_FLEXGEN_56] = &ck_flexgen_56, 3154 [CK_FLEXGEN_57] = &ck_flexgen_57, 3155 [CK_FLEXGEN_58] = &ck_flexgen_58, 3156 [CK_FLEXGEN_59] = &ck_flexgen_59, 3157 [CK_FLEXGEN_60] = &ck_flexgen_60, 3158 [CK_FLEXGEN_61] = &ck_flexgen_61, 3159 [CK_FLEXGEN_62] = &ck_flexgen_62, 3160 [CK_FLEXGEN_63] = &ck_flexgen_63, 3161 3162 [CK_CPU1] = &ck_cpu1, 3163 3164 [CK_ICN_APB1] = &ck_icn_apb1, 3165 [CK_ICN_APB2] = &ck_icn_apb2, 3166 [CK_ICN_APB3] = &ck_icn_apb3, 3167 [CK_ICN_APB4] = &ck_icn_apb4, 3168 [CK_ICN_APBDBG] = &ck_icn_apbdbg, 3169 3170 [TIMG1_CK] = &ck_timg1, 3171 [TIMG2_CK] = &ck_timg2, 3172 3173 [CK_BUS_SYSRAM] = &ck_icn_s_sysram, 3174 [CK_BUS_VDERAM] = &ck_icn_s_vderam, 3175 [CK_BUS_RETRAM] = &ck_icn_s_retram, 3176 [CK_BUS_SRAM1] = &ck_icn_s_sram1, 3177 [CK_BUS_SRAM2] = &ck_icn_s_sram2, 3178 [CK_BUS_OSPI1] = &ck_icn_s_ospi1, 3179 [CK_BUS_OSPI2] = &ck_icn_s_ospi2, 3180 [CK_BUS_BKPSRAM] = &ck_icn_s_bkpsram, 3181 [CK_BUS_DDRPHYC] = &ck_icn_p_ddrphyc, 3182 [CK_BUS_SYSCPU1] = &ck_icn_p_syscpu1, 3183 [CK_BUS_HPDMA1] = &ck_icn_p_hpdma1, 3184 [CK_BUS_HPDMA2] = &ck_icn_p_hpdma2, 3185 [CK_BUS_HPDMA3] = &ck_icn_p_hpdma3, 3186 [CK_BUS_IPCC1] = &ck_icn_p_ipcc1, 3187 [CK_BUS_IPCC2] = &ck_icn_p_ipcc2, 3188 [CK_BUS_CCI] = &ck_icn_p_cci, 3189 [CK_BUS_CRC] = &ck_icn_p_crc, 3190 [CK_BUS_OSPIIOM] = &ck_icn_p_ospiiom, 3191 [CK_BUS_HASH] = &ck_icn_p_hash, 3192 [CK_BUS_RNG] = &ck_icn_p_rng, 3193 [CK_BUS_CRYP1] = &ck_icn_p_cryp1, 3194 [CK_BUS_CRYP2] = &ck_icn_p_cryp2, 3195 [CK_BUS_SAES] = &ck_icn_p_saes, 3196 [CK_BUS_PKA] = &ck_icn_p_pka, 3197 [CK_BUS_GPIOA] = &ck_icn_p_gpioa, 3198 [CK_BUS_GPIOB] = &ck_icn_p_gpiob, 3199 [CK_BUS_GPIOC] = &ck_icn_p_gpioc, 3200 [CK_BUS_GPIOD] = &ck_icn_p_gpiod, 3201 [CK_BUS_GPIOE] = &ck_icn_p_gpioe, 3202 [CK_BUS_GPIOF] = &ck_icn_p_gpiof, 3203 [CK_BUS_GPIOG] = &ck_icn_p_gpiog, 3204 [CK_BUS_GPIOH] = &ck_icn_p_gpioh, 3205 [CK_BUS_GPIOI] = &ck_icn_p_gpioi, 3206 [CK_BUS_GPIOJ] = &ck_icn_p_gpioj, 3207 [CK_BUS_GPIOK] = &ck_icn_p_gpiok, 3208 [CK_BUS_LPSRAM1] = &ck_icn_s_lpsram1, 3209 [CK_BUS_LPSRAM2] = &ck_icn_s_lpsram2, 3210 [CK_BUS_LPSRAM3] = &ck_icn_s_lpsram3, 3211 [CK_BUS_GPIOZ] = &ck_icn_p_gpioz, 3212 [CK_BUS_LPDMA] = &ck_icn_p_lpdma, 3213 [CK_BUS_ADF1] = &ck_icn_p_adf1, 3214 [CK_BUS_HSEM] = &ck_icn_p_hsem, 3215 [CK_BUS_RTC] = &ck_icn_p_rtc, 3216 [CK_BUS_IWDG5] = &ck_icn_p_iwdg5, 3217 [CK_BUS_WWDG2] = &ck_icn_p_wwdg2, 3218 [CK_BUS_STM] = &ck_icn_p_stm, 3219 [CK_KER_STM] = &ck_icn_s_stm, 3220 [CK_BUS_FMC] = &ck_icn_p_fmc, 3221 [CK_BUS_ETH1] = &ck_icn_p_eth1, 3222 [CK_BUS_ETHSW] = &ck_icn_p_ethsw, 3223 [CK_BUS_ETH2] = &ck_icn_p_eth2, 3224 [CK_BUS_PCIE] = &ck_icn_p_pcie, 3225 [CK_BUS_ADC12] = &ck_icn_p_adc12, 3226 [CK_BUS_ADC3] = &ck_icn_p_adc3, 3227 [CK_BUS_MDF1] = &ck_icn_p_mdf1, 3228 [CK_BUS_SPI8] = &ck_icn_p_spi8, 3229 [CK_BUS_LPUART1] = &ck_icn_p_lpuart1, 3230 [CK_BUS_I2C8] = &ck_icn_p_i2c8, 3231 [CK_BUS_LPTIM3] = &ck_icn_p_lptim3, 3232 [CK_BUS_LPTIM4] = &ck_icn_p_lptim4, 3233 [CK_BUS_LPTIM5] = &ck_icn_p_lptim5, 3234 [CK_BUS_RISAF4] = &ck_icn_p_risaf4, 3235 [CK_BUS_SDMMC1] = &ck_icn_m_sdmmc1, 3236 [CK_BUS_SDMMC2] = &ck_icn_m_sdmmc2, 3237 [CK_BUS_SDMMC3] = &ck_icn_m_sdmmc3, 3238 [CK_BUS_DDR] = &ck_icn_s_ddr, 3239 [CK_BUS_USB2OHCI] = &ck_icn_m_usb2ohci, 3240 [CK_BUS_USB2EHCI] = &ck_icn_m_usb2ehci, 3241 [CK_BUS_USB3DR] = &ck_icn_m_usb3dr, 3242 [CK_BUS_TIM2] = &ck_icn_p_tim2, 3243 [CK_BUS_TIM3] = &ck_icn_p_tim3, 3244 [CK_BUS_TIM4] = &ck_icn_p_tim4, 3245 [CK_BUS_TIM5] = &ck_icn_p_tim5, 3246 [CK_BUS_TIM6] = &ck_icn_p_tim6, 3247 [CK_BUS_TIM7] = &ck_icn_p_tim7, 3248 [CK_BUS_TIM10] = &ck_icn_p_tim10, 3249 [CK_BUS_TIM11] = &ck_icn_p_tim11, 3250 [CK_BUS_TIM12] = &ck_icn_p_tim12, 3251 [CK_BUS_TIM13] = &ck_icn_p_tim13, 3252 [CK_BUS_TIM14] = &ck_icn_p_tim14, 3253 [CK_BUS_LPTIM1] = &ck_icn_p_lptim1, 3254 [CK_BUS_LPTIM2] = &ck_icn_p_lptim2, 3255 [CK_BUS_SPI2] = &ck_icn_p_spi2, 3256 [CK_BUS_SPI3] = &ck_icn_p_spi3, 3257 [CK_BUS_SPDIFRX] = &ck_icn_p_spdifrx, 3258 [CK_BUS_USART2] = &ck_icn_p_usart2, 3259 [CK_BUS_USART3] = &ck_icn_p_usart3, 3260 [CK_BUS_UART4] = &ck_icn_p_uart4, 3261 [CK_BUS_UART5] = &ck_icn_p_uart5, 3262 [CK_BUS_I2C1] = &ck_icn_p_i2c1, 3263 [CK_BUS_I2C2] = &ck_icn_p_i2c2, 3264 [CK_BUS_I2C3] = &ck_icn_p_i2c3, 3265 [CK_BUS_I2C4] = &ck_icn_p_i2c4, 3266 [CK_BUS_I2C5] = &ck_icn_p_i2c5, 3267 [CK_BUS_I2C6] = &ck_icn_p_i2c6, 3268 [CK_BUS_I2C7] = &ck_icn_p_i2c7, 3269 [CK_BUS_I3C1] = &ck_icn_p_i3c1, 3270 [CK_BUS_I3C2] = &ck_icn_p_i3c2, 3271 [CK_BUS_I3C3] = &ck_icn_p_i3c3, 3272 [CK_BUS_I3C4] = &ck_icn_p_i3c4, 3273 [CK_BUS_TIM1] = &ck_icn_p_tim1, 3274 [CK_BUS_TIM8] = &ck_icn_p_tim8, 3275 [CK_BUS_TIM15] = &ck_icn_p_tim15, 3276 [CK_BUS_TIM16] = &ck_icn_p_tim16, 3277 [CK_BUS_TIM17] = &ck_icn_p_tim17, 3278 [CK_BUS_TIM20] = &ck_icn_p_tim20, 3279 [CK_BUS_SAI1] = &ck_icn_p_sai1, 3280 [CK_BUS_SAI2] = &ck_icn_p_sai2, 3281 [CK_BUS_SAI3] = &ck_icn_p_sai3, 3282 [CK_BUS_SAI4] = &ck_icn_p_sai4, 3283 [CK_BUS_USART1] = &ck_icn_p_usart1, 3284 [CK_BUS_USART6] = &ck_icn_p_usart6, 3285 [CK_BUS_UART7] = &ck_icn_p_uart7, 3286 [CK_BUS_UART8] = &ck_icn_p_uart8, 3287 [CK_BUS_UART9] = &ck_icn_p_uart9, 3288 [CK_BUS_FDCAN] = &ck_icn_p_fdcan, 3289 [CK_BUS_SPI1] = &ck_icn_p_spi1, 3290 [CK_BUS_SPI4] = &ck_icn_p_spi4, 3291 [CK_BUS_SPI5] = &ck_icn_p_spi5, 3292 [CK_BUS_SPI6] = &ck_icn_p_spi6, 3293 [CK_BUS_SPI7] = &ck_icn_p_spi7, 3294 [CK_BUS_BSEC] = &ck_icn_p_bsec, 3295 [CK_BUS_IWDG1] = &ck_icn_p_iwdg1, 3296 [CK_BUS_IWDG2] = &ck_icn_p_iwdg2, 3297 [CK_BUS_IWDG3] = &ck_icn_p_iwdg3, 3298 [CK_BUS_IWDG4] = &ck_icn_p_iwdg4, 3299 [CK_BUS_WWDG1] = &ck_icn_p_wwdg1, 3300 [CK_BUS_VREF] = &ck_icn_p_vref, 3301 [CK_BUS_SERC] = &ck_icn_p_serc, 3302 [CK_BUS_DTS] = &ck_icn_p_dts, 3303 [CK_BUS_HDP] = &ck_icn_p_hdp, 3304 [CK_BUS_IS2M] = &ck_icn_p_is2m, 3305 [CK_BUS_DSI] = &ck_icn_p_dsi, 3306 [CK_BUS_LTDC] = &ck_icn_p_ltdc, 3307 [CK_BUS_CSI] = &ck_icn_p_csi, 3308 [CK_BUS_DCMIPP] = &ck_icn_p_dcmipp, 3309 [CK_BUS_DDRC] = &ck_icn_p_ddrc, 3310 [CK_BUS_DDRCFG] = &ck_icn_p_ddrcfg, 3311 [CK_BUS_LVDS] = &ck_icn_p_lvds, 3312 [CK_BUS_GICV2M] = &ck_icn_p_gicv2m, 3313 [CK_BUS_USBTC] = &ck_icn_p_usbtc, 3314 [CK_BUS_USB3PCIEPHY] = &ck_icn_p_usb3pciephy, 3315 [CK_BUS_STGEN] = &ck_icn_p_stgen, 3316 [CK_BUS_VDEC] = &ck_icn_p_vdec, 3317 [CK_BUS_VENC] = &ck_icn_p_venc, 3318 [CK_SYSDBG] = &ck_sys_dbg, 3319 [CK_KER_TIM2] = &ck_ker_tim2, 3320 [CK_KER_TIM3] = &ck_ker_tim3, 3321 [CK_KER_TIM4] = &ck_ker_tim4, 3322 [CK_KER_TIM5] = &ck_ker_tim5, 3323 [CK_KER_TIM6] = &ck_ker_tim6, 3324 [CK_KER_TIM7] = &ck_ker_tim7, 3325 [CK_KER_TIM10] = &ck_ker_tim10, 3326 [CK_KER_TIM11] = &ck_ker_tim11, 3327 [CK_KER_TIM12] = &ck_ker_tim12, 3328 [CK_KER_TIM13] = &ck_ker_tim13, 3329 [CK_KER_TIM14] = &ck_ker_tim14, 3330 [CK_KER_TIM1] = &ck_ker_tim1, 3331 [CK_KER_TIM8] = &ck_ker_tim8, 3332 [CK_KER_TIM15] = &ck_ker_tim15, 3333 [CK_KER_TIM16] = &ck_ker_tim16, 3334 [CK_KER_TIM17] = &ck_ker_tim17, 3335 [CK_KER_TIM20] = &ck_ker_tim20, 3336 [CK_KER_LPTIM1] = &ck_ker_lptim1, 3337 [CK_KER_LPTIM2] = &ck_ker_lptim2, 3338 [CK_KER_USART2] = &ck_ker_usart2, 3339 [CK_KER_UART4] = &ck_ker_uart4, 3340 [CK_KER_USART3] = &ck_ker_usart3, 3341 [CK_KER_UART5] = &ck_ker_uart5, 3342 [CK_KER_SPI2] = &ck_ker_spi2, 3343 [CK_KER_SPI3] = &ck_ker_spi3, 3344 [CK_KER_SPDIFRX] = &ck_ker_spdifrx, 3345 [CK_KER_I2C1] = &ck_ker_i2c1, 3346 [CK_KER_I2C2] = &ck_ker_i2c2, 3347 [CK_KER_I3C1] = &ck_ker_i3c1, 3348 [CK_KER_I3C2] = &ck_ker_i3c2, 3349 [CK_KER_I2C3] = &ck_ker_i2c3, 3350 [CK_KER_I2C5] = &ck_ker_i2c5, 3351 [CK_KER_I3C3] = &ck_ker_i3c3, 3352 [CK_KER_I2C4] = &ck_ker_i2c4, 3353 [CK_KER_I2C6] = &ck_ker_i2c6, 3354 [CK_KER_I2C7] = &ck_ker_i2c7, 3355 [CK_KER_SPI1] = &ck_ker_spi1, 3356 [CK_KER_SPI4] = &ck_ker_spi4, 3357 [CK_KER_SPI5] = &ck_ker_spi5, 3358 [CK_KER_SPI6] = &ck_ker_spi6, 3359 [CK_KER_SPI7] = &ck_ker_spi7, 3360 [CK_KER_USART1] = &ck_ker_usart1, 3361 [CK_KER_USART6] = &ck_ker_usart6, 3362 [CK_KER_UART7] = &ck_ker_uart7, 3363 [CK_KER_UART8] = &ck_ker_uart8, 3364 [CK_KER_UART9] = &ck_ker_uart9, 3365 [CK_KER_MDF1] = &ck_ker_mdf1, 3366 [CK_KER_SAI1] = &ck_ker_sai1, 3367 [CK_KER_SAI2] = &ck_ker_sai2, 3368 [CK_KER_SAI3] = &ck_ker_sai3, 3369 [CK_KER_SAI4] = &ck_ker_sai4, 3370 [CK_KER_FDCAN] = &ck_ker_fdcan, 3371 [CK_KER_CSI] = &ck_ker_csi, 3372 [CK_KER_CSITXESC] = &ck_ker_csitxesc, 3373 [CK_KER_CSIPHY] = &ck_ker_csiphy, 3374 [CK_KER_STGEN] = &ck_ker_stgen, 3375 [CK_KER_USBTC] = &ck_ker_usbtc, 3376 [CK_KER_I3C4] = &ck_ker_i3c4, 3377 [CK_KER_SPI8] = &ck_ker_spi8, 3378 [CK_KER_I2C8] = &ck_ker_i2c8, 3379 [CK_KER_LPUART1] = &ck_ker_lpuart1, 3380 [CK_KER_LPTIM3] = &ck_ker_lptim3, 3381 [CK_KER_LPTIM4] = &ck_ker_lptim4, 3382 [CK_KER_LPTIM5] = &ck_ker_lptim5, 3383 [CK_KER_ADF1] = &ck_ker_adf1, 3384 [CK_KER_TSDBG] = &ck_ker_tsdbg, 3385 [CK_KER_TPIU] = &ck_ker_tpiu, 3386 [CK_BUS_ETR] = &ck_icn_p_etr, 3387 [CK_KER_ETR] = &ck_icn_m_etr, 3388 [CK_BUS_SYSATB] = &ck_sys_atb, 3389 [CK_KER_OSPI1] = &ck_ker_ospi1, 3390 [CK_KER_OSPI2] = &ck_ker_ospi2, 3391 [CK_KER_FMC] = &ck_ker_fmc, 3392 [CK_KER_SDMMC1] = &ck_ker_sdmmc1, 3393 [CK_KER_SDMMC2] = &ck_ker_sdmmc2, 3394 [CK_KER_SDMMC3] = &ck_ker_sdmmc3, 3395 [CK_KER_ETH1] = &ck_ker_eth1, 3396 [CK_ETH1_STP] = &ck_ker_eth1stp, 3397 [CK_KER_ETHSW] = &ck_ker_ethsw, 3398 [CK_KER_ETH2] = &ck_ker_eth2, 3399 [CK_ETH2_STP] = &ck_ker_eth2stp, 3400 [CK_KER_ETH1PTP] = &ck_ker_eth1ptp, 3401 [CK_KER_ETH2PTP] = &ck_ker_eth2ptp, 3402 [CK_BUS_GPU] = &ck_icn_m_gpu, 3403 [CK_KER_GPU] = &ck_ker_gpu, 3404 [CK_KER_ETHSWREF] = &ck_ker_ethswref, 3405 3406 [CK_MCO1] = &ck_mco1, 3407 [CK_MCO2] = &ck_mco2, 3408 [CK_KER_ADC12] = &ck_ker_adc12, 3409 [CK_KER_ADC3] = &ck_ker_adc3, 3410 [CK_KER_USB2PHY1] = &ck_ker_usb2phy1, 3411 [CK_KER_USB2PHY2] = &ck_ker_usb2phy2, 3412 [CK_KER_USB2PHY2EN] = &ck_ker_usb2phy2_en, 3413 [CK_KER_USB3PCIEPHY] = &ck_ker_usb3pciephy, 3414 [CK_KER_LTDC] = &ck_ker_ltdc, 3415 [CK_KER_DSIBLANE] = &clk_lanebyte, 3416 [CK_KER_DSIPHY] = &ck_phy_dsi, 3417 [CK_KER_LVDSPHY] = &ck_ker_lvdsphy, 3418 [CK_KER_DTS] = &ck_ker_dts, 3419 [RTC_CK] = &ck_rtc, 3420 3421 [CK_ETH1_MAC] = &ck_ker_eth1mac, 3422 [CK_ETH1_TX] = &ck_ker_eth1tx, 3423 [CK_ETH1_RX] = &ck_ker_eth1rx, 3424 [CK_ETH2_MAC] = &ck_ker_eth2mac, 3425 [CK_ETH2_TX] = &ck_ker_eth2tx, 3426 [CK_ETH2_RX] = &ck_ker_eth2rx, 3427 3428 [CK_HSE_RTC] = &ck_hse_rtc, 3429 [CK_OBSER0] = &ck_obser0, 3430 [CK_OBSER1] = &ck_obser1, 3431 [CK_OFF] = &ck_off, 3432 [I2SCKIN] = &i2sckin, 3433 [SPDIFSYMB] = &spdifsymb, 3434 [TXBYTECLK] = &txbyteclk, 3435 }; 3436 3437 static bool clk_stm32_clock_is_critical(struct clk *clk) 3438 { 3439 struct clk *clk_criticals[] = { 3440 &ck_hsi, 3441 &ck_hse, 3442 &ck_msi, 3443 &ck_lsi, 3444 &ck_lse, 3445 &ck_cpu1, 3446 &ck_icn_p_syscpu1, 3447 &ck_icn_s_ddr, 3448 &ck_icn_p_ddrc, 3449 &ck_icn_p_ddrcfg, 3450 &ck_icn_p_ddrphyc, 3451 &ck_icn_s_sysram, 3452 &ck_icn_s_bkpsram, 3453 &ck_ker_fmc, 3454 &ck_ker_ospi1, 3455 &ck_ker_ospi2, 3456 &ck_icn_s_vderam, 3457 &ck_icn_s_lpsram1, 3458 &ck_icn_s_lpsram2, 3459 &ck_icn_s_lpsram3, 3460 &ck_icn_p_hpdma1, 3461 &ck_icn_p_hpdma2, 3462 &ck_icn_p_hpdma3, 3463 &ck_icn_p_gpioa, 3464 &ck_icn_p_gpiob, 3465 &ck_icn_p_gpioc, 3466 &ck_icn_p_gpiod, 3467 &ck_icn_p_gpioe, 3468 &ck_icn_p_gpiof, 3469 &ck_icn_p_gpiog, 3470 &ck_icn_p_gpioh, 3471 &ck_icn_p_gpioi, 3472 &ck_icn_p_gpioj, 3473 &ck_icn_p_gpiok, 3474 &ck_icn_p_gpioz, 3475 &ck_icn_p_ipcc1, 3476 &ck_icn_p_ipcc2, 3477 &ck_icn_p_gicv2m, 3478 &ck_icn_p_rtc 3479 }; 3480 size_t i = 0; 3481 3482 for (i = 0; i < ARRAY_SIZE(clk_criticals); i++) 3483 if (clk == clk_criticals[i]) 3484 return true; 3485 return false; 3486 } 3487 3488 static void clk_stm32_init_oscillators(const void *fdt, int node) 3489 { 3490 size_t i = 0; 3491 static const char * const name[] = { 3492 "clk-hse", "clk-hsi", "clk-lse", 3493 "clk-lsi", "clk-msi", "clk-i2sin" 3494 }; 3495 struct clk *clks[ARRAY_SIZE(name)] = { 3496 &ck_hse, &ck_hsi, &ck_lse, 3497 &ck_lsi, &ck_msi, &i2sckin 3498 }; 3499 3500 for (i = 0; i < ARRAY_SIZE(clks); i++) { 3501 struct clk *clk = NULL; 3502 3503 if (clk_dt_get_by_name(fdt, node, name[i], &clk)) 3504 panic(); 3505 3506 clks[i]->parents[0] = clk; 3507 } 3508 } 3509 3510 static TEE_Result clk_stm32_apply_rcc_config(struct stm32_clk_platdata *pdata) 3511 { 3512 if (pdata->safe_rst) 3513 stm32mp25_syscfg_set_safe_reset(true); 3514 3515 return TEE_SUCCESS; 3516 } 3517 3518 static struct stm32_pll_dt_cfg mp25_pll[PLL_NB]; 3519 static struct stm32_clk_opp_dt_cfg mp25_clk_opp; 3520 static struct stm32_osci_dt_cfg mp25_osci[NB_OSCILLATOR]; 3521 3522 #define DT_FLEXGEN_CLK_MAX 64 3523 static uint32_t mp25_flexgen[DT_FLEXGEN_CLK_MAX]; 3524 3525 #define DT_BUS_CLK_MAX 6 3526 static uint32_t mp25_busclk[DT_BUS_CLK_MAX]; 3527 3528 #define DT_KERNEL_CLK_MAX 20 3529 static uint32_t mp25_kernelclk[DT_KERNEL_CLK_MAX]; 3530 3531 static struct stm32_clk_platdata stm32mp25_clock_pdata = { 3532 .osci = mp25_osci, 3533 .nosci = NB_OSCILLATOR, 3534 .pll = mp25_pll, 3535 .npll = PLL_NB, 3536 .opp = &mp25_clk_opp, 3537 .busclk = mp25_busclk, 3538 .nbusclk = DT_BUS_CLK_MAX, 3539 .kernelclk = mp25_kernelclk, 3540 .nkernelclk = DT_KERNEL_CLK_MAX, 3541 .flexgen = mp25_flexgen, 3542 .nflexgen = DT_FLEXGEN_CLK_MAX, 3543 }; 3544 3545 static struct clk_stm32_priv stm32mp25_clock_data = { 3546 .muxes = parent_mp25, 3547 .nb_muxes = ARRAY_SIZE(parent_mp25), 3548 .gates = gates_mp25, 3549 .nb_gates = ARRAY_SIZE(gates_mp25), 3550 .div = dividers_mp25, 3551 .nb_div = ARRAY_SIZE(dividers_mp25), 3552 .pdata = &stm32mp25_clock_pdata, 3553 .nb_clk_refs = STM32MP25_ALL_CLK_NB, 3554 .clk_refs = stm32mp25_clk_provided, 3555 .is_critical = clk_stm32_clock_is_critical, 3556 }; 3557 3558 static TEE_Result handle_available_semaphores(void) 3559 { 3560 struct stm32_clk_platdata *pdata = &stm32mp25_clock_pdata; 3561 TEE_Result res = TEE_ERROR_GENERIC; 3562 unsigned int index = 0; 3563 uint32_t cidcfgr = 0; 3564 unsigned int i = 0; 3565 3566 for (i = 0; i < RCC_NB_RIF_RES; i++) { 3567 vaddr_t reg_offset = pdata->rcc_base + RCC_SEMCR(i); 3568 3569 index = i / 32; 3570 3571 if (!(BIT(i % 32) & pdata->conf_data.access_mask[index])) 3572 continue; 3573 3574 cidcfgr = io_read32(pdata->rcc_base + RCC_CIDCFGR(i)); 3575 3576 if (!stm32_rif_semaphore_enabled_and_ok(cidcfgr, RIF_CID1)) 3577 continue; 3578 3579 if (!(io_read32(pdata->rcc_base + RCC_SECCFGR(index)) & 3580 BIT(i % 32))) { 3581 res = stm32_rif_release_semaphore(reg_offset, 3582 MAX_CID_SUPPORTED); 3583 if (res) { 3584 EMSG("Cannot release semaphore for res %u", i); 3585 return res; 3586 } 3587 } else { 3588 res = stm32_rif_acquire_semaphore(reg_offset, 3589 MAX_CID_SUPPORTED); 3590 if (res) { 3591 EMSG("Cannot acquire semaphore for res %u", i); 3592 return res; 3593 } 3594 } 3595 } 3596 3597 return TEE_SUCCESS; 3598 } 3599 3600 static TEE_Result apply_rcc_rif_config(bool is_tdcid) 3601 { 3602 TEE_Result res = TEE_ERROR_ACCESS_DENIED; 3603 struct stm32_clk_platdata *pdata = &stm32mp25_clock_pdata; 3604 unsigned int i = 0; 3605 unsigned int index = 0; 3606 3607 if (is_tdcid) { 3608 /* 3609 * When TDCID, OP-TEE should be the one to set the CID 3610 * filtering configuration. Clearing previous configuration 3611 * prevents undesired events during the only legitimate 3612 * configuration. 3613 */ 3614 for (i = 0; i < RCC_NB_RIF_RES; i++) { 3615 if (BIT(i % 32) & pdata->conf_data.access_mask[i / 32]) 3616 io_clrbits32(pdata->rcc_base + RCC_CIDCFGR(i), 3617 RCC_CIDCFGR_CONF_MASK); 3618 } 3619 } else { 3620 res = handle_available_semaphores(); 3621 if (res) 3622 panic(); 3623 } 3624 3625 /* Security and privilege RIF configuration */ 3626 for (index = 0; index < RCC_NB_CONFS; index++) { 3627 io_clrsetbits32(pdata->rcc_base + RCC_PRIVCFGR(index), 3628 pdata->conf_data.access_mask[index], 3629 pdata->conf_data.priv_conf[index]); 3630 io_clrsetbits32(pdata->rcc_base + RCC_SECCFGR(index), 3631 pdata->conf_data.access_mask[index], 3632 pdata->conf_data.sec_conf[index]); 3633 } 3634 3635 if (!is_tdcid) 3636 goto end; 3637 3638 for (i = 0; i < RCC_NB_RIF_RES; i++) { 3639 if (BIT(i % 32) & pdata->conf_data.access_mask[i / 32]) 3640 io_clrsetbits32(pdata->rcc_base + RCC_CIDCFGR(i), 3641 RCC_CIDCFGR_CONF_MASK, 3642 pdata->conf_data.cid_confs[i]); 3643 } 3644 3645 for (index = 0; index < RCC_NB_CONFS; index++) 3646 io_setbits32(pdata->rcc_base + RCC_RCFGLOCKR(index), 3647 pdata->conf_data.lock_conf[index]); 3648 3649 res = handle_available_semaphores(); 3650 if (res) 3651 panic(); 3652 end: 3653 if (IS_ENABLED(CFG_TEE_CORE_DEBUG)) { 3654 for (index = 0; index < RCC_NB_CONFS; index++) { 3655 /* Check that RIF config are applied, panic otherwise */ 3656 if ((io_read32(pdata->rcc_base + RCC_PRIVCFGR(index)) & 3657 pdata->conf_data.access_mask[index]) != 3658 pdata->conf_data.priv_conf[index]) 3659 panic("rcc resource prv conf is incorrect"); 3660 3661 if ((io_read32(pdata->rcc_base + RCC_SECCFGR(index)) & 3662 pdata->conf_data.access_mask[index]) != 3663 pdata->conf_data.sec_conf[index]) 3664 panic("rcc resource sec conf is incorrect"); 3665 } 3666 } 3667 3668 return TEE_SUCCESS; 3669 } 3670 3671 static TEE_Result stm32_rcc_rif_pm_suspend(void) 3672 { 3673 struct stm32_clk_platdata *pdata = &stm32mp25_clock_pdata; 3674 unsigned int i = 0; 3675 3676 if (!pdata->nb_res) 3677 return TEE_SUCCESS; 3678 3679 for (i = 0; i < RCC_NB_RIF_RES; i++) 3680 pdata->conf_data.cid_confs[i] = io_read32(pdata->rcc_base + 3681 RCC_CIDCFGR(i)); 3682 3683 for (i = 0; i < RCC_NB_CONFS; i++) { 3684 pdata->conf_data.priv_conf[i] = io_read32(pdata->rcc_base + 3685 RCC_PRIVCFGR(i)); 3686 pdata->conf_data.sec_conf[i] = io_read32(pdata->rcc_base + 3687 RCC_SECCFGR(i)); 3688 pdata->conf_data.lock_conf[i] = io_read32(pdata->rcc_base + 3689 RCC_RCFGLOCKR(i)); 3690 pdata->conf_data.access_mask[i] = GENMASK_32(31, 0); 3691 } 3692 3693 return TEE_SUCCESS; 3694 } 3695 3696 static TEE_Result stm32_rcc_rif_pm(enum pm_op op, unsigned int pm_hint, 3697 const struct pm_callback_handle *h __unused) 3698 { 3699 TEE_Result res = TEE_ERROR_GENERIC; 3700 bool is_tdcid = false; 3701 3702 if (!PM_HINT_IS_STATE(pm_hint, CONTEXT)) 3703 return TEE_SUCCESS; 3704 3705 res = stm32_rifsc_check_tdcid(&is_tdcid); 3706 if (res) 3707 return res; 3708 3709 if (op == PM_OP_RESUME) { 3710 if (is_tdcid) 3711 res = apply_rcc_rif_config(true); 3712 else 3713 res = handle_available_semaphores(); 3714 } else { 3715 if (!is_tdcid) 3716 return TEE_SUCCESS; 3717 3718 res = stm32_rcc_rif_pm_suspend(); 3719 } 3720 3721 return res; 3722 } 3723 3724 static TEE_Result rcc_rif_config(void) 3725 { 3726 TEE_Result res = TEE_ERROR_ACCESS_DENIED; 3727 bool is_tdcid = false; 3728 3729 /* Not expected to fail at this stage */ 3730 res = stm32_rifsc_check_tdcid(&is_tdcid); 3731 if (res) 3732 panic(); 3733 3734 res = apply_rcc_rif_config(is_tdcid); 3735 if (res) 3736 panic(); 3737 3738 register_pm_core_service_cb(stm32_rcc_rif_pm, NULL, "stm32-rcc-rif"); 3739 3740 return TEE_SUCCESS; 3741 } 3742 3743 driver_init_late(rcc_rif_config); 3744 3745 static TEE_Result stm32mp25_clk_probe(const void *fdt, int node, 3746 const void *compat_data __unused) 3747 { 3748 TEE_Result res = TEE_ERROR_GENERIC; 3749 int fdt_rc = 0; 3750 int rc = 0; 3751 struct clk_stm32_priv *priv = &stm32mp25_clock_data; 3752 struct stm32_clk_platdata *pdata = &stm32mp25_clock_pdata; 3753 3754 fdt_rc = stm32_clk_parse_fdt(fdt, node, pdata); 3755 if (fdt_rc) { 3756 EMSG("Failed to parse clock node %s: %d", 3757 fdt_get_name(fdt, node, NULL), fdt_rc); 3758 return TEE_ERROR_GENERIC; 3759 } 3760 3761 rc = clk_stm32_init(priv, stm32_rcc_base()); 3762 if (rc) 3763 return TEE_ERROR_GENERIC; 3764 3765 stm32mp2_init_clock_tree(priv, pdata); 3766 3767 clk_stm32_init_oscillators(fdt, node); 3768 3769 res = clk_stm32_apply_rcc_config(pdata); 3770 if (res) 3771 panic("Error when applying RCC config"); 3772 3773 stm32mp_clk_provider_probe_final(fdt, node, priv); 3774 3775 if (IS_ENABLED(CFG_STM32_CLK_DEBUG)) 3776 clk_print_tree(); 3777 3778 return TEE_SUCCESS; 3779 } 3780 3781 CLK_DT_DECLARE(stm32mp25_clk, "st,stm32mp25-rcc", stm32mp25_clk_probe); 3782