1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) STMicroelectronics 2022 - All Rights Reserved 4 * Author: Gabriel Fernandez <gabriel.fernandez@foss.st.com> for STMicroelectronics. 5 */ 6 7 #include <linux/clk.h> 8 #include <linux/module.h> 9 #include <linux/of_address.h> 10 #include <linux/platform_device.h> 11 #include <dt-bindings/clock/stm32mp13-clks.h> 12 #include "clk-stm32-core.h" 13 #include "stm32mp13_rcc.h" 14 15 #define RCC_CLR_OFFSET 0x4 16 17 /* STM32 Gates definition */ 18 enum enum_gate_cfg { 19 GATE_MCO1, 20 GATE_MCO2, 21 GATE_DBGCK, 22 GATE_TRACECK, 23 GATE_DDRC1, 24 GATE_DDRC1LP, 25 GATE_DDRPHYC, 26 GATE_DDRPHYCLP, 27 GATE_DDRCAPB, 28 GATE_DDRCAPBLP, 29 GATE_AXIDCG, 30 GATE_DDRPHYCAPB, 31 GATE_DDRPHYCAPBLP, 32 GATE_TIM2, 33 GATE_TIM3, 34 GATE_TIM4, 35 GATE_TIM5, 36 GATE_TIM6, 37 GATE_TIM7, 38 GATE_LPTIM1, 39 GATE_SPI2, 40 GATE_SPI3, 41 GATE_USART3, 42 GATE_UART4, 43 GATE_UART5, 44 GATE_UART7, 45 GATE_UART8, 46 GATE_I2C1, 47 GATE_I2C2, 48 GATE_SPDIF, 49 GATE_TIM1, 50 GATE_TIM8, 51 GATE_SPI1, 52 GATE_USART6, 53 GATE_SAI1, 54 GATE_SAI2, 55 GATE_DFSDM, 56 GATE_ADFSDM, 57 GATE_FDCAN, 58 GATE_LPTIM2, 59 GATE_LPTIM3, 60 GATE_LPTIM4, 61 GATE_LPTIM5, 62 GATE_VREF, 63 GATE_DTS, 64 GATE_PMBCTRL, 65 GATE_HDP, 66 GATE_SYSCFG, 67 GATE_DCMIPP, 68 GATE_DDRPERFM, 69 GATE_IWDG2APB, 70 GATE_USBPHY, 71 GATE_STGENRO, 72 GATE_LTDC, 73 GATE_RTCAPB, 74 GATE_TZC, 75 GATE_ETZPC, 76 GATE_IWDG1APB, 77 GATE_BSEC, 78 GATE_STGENC, 79 GATE_USART1, 80 GATE_USART2, 81 GATE_SPI4, 82 GATE_SPI5, 83 GATE_I2C3, 84 GATE_I2C4, 85 GATE_I2C5, 86 GATE_TIM12, 87 GATE_TIM13, 88 GATE_TIM14, 89 GATE_TIM15, 90 GATE_TIM16, 91 GATE_TIM17, 92 GATE_DMA1, 93 GATE_DMA2, 94 GATE_DMAMUX1, 95 GATE_DMA3, 96 GATE_DMAMUX2, 97 GATE_ADC1, 98 GATE_ADC2, 99 GATE_USBO, 100 GATE_TSC, 101 GATE_GPIOA, 102 GATE_GPIOB, 103 GATE_GPIOC, 104 GATE_GPIOD, 105 GATE_GPIOE, 106 GATE_GPIOF, 107 GATE_GPIOG, 108 GATE_GPIOH, 109 GATE_GPIOI, 110 GATE_PKA, 111 GATE_SAES, 112 GATE_CRYP1, 113 GATE_HASH1, 114 GATE_RNG1, 115 GATE_BKPSRAM, 116 GATE_AXIMC, 117 GATE_MCE, 118 GATE_ETH1CK, 119 GATE_ETH1TX, 120 GATE_ETH1RX, 121 GATE_ETH1MAC, 122 GATE_FMC, 123 GATE_QSPI, 124 GATE_SDMMC1, 125 GATE_SDMMC2, 126 GATE_CRC1, 127 GATE_USBH, 128 GATE_ETH2CK, 129 GATE_ETH2TX, 130 GATE_ETH2RX, 131 GATE_ETH2MAC, 132 GATE_ETH1STP, 133 GATE_ETH2STP, 134 GATE_MDMA, 135 GATE_NB 136 }; 137 138 #define _CFG_GATE(_id, _offset, _bit_idx, _offset_clr)\ 139 [(_id)] = {\ 140 .offset = (_offset),\ 141 .bit_idx = (_bit_idx),\ 142 .set_clr = (_offset_clr),\ 143 } 144 145 #define CFG_GATE(_id, _offset, _bit_idx)\ 146 _CFG_GATE(_id, _offset, _bit_idx, 0) 147 148 #define CFG_GATE_SETCLR(_id, _offset, _bit_idx)\ 149 _CFG_GATE(_id, _offset, _bit_idx, RCC_CLR_OFFSET) 150 151 static struct stm32_gate_cfg stm32mp13_gates[] = { 152 CFG_GATE(GATE_MCO1, RCC_MCO1CFGR, 12), 153 CFG_GATE(GATE_MCO2, RCC_MCO2CFGR, 12), 154 CFG_GATE(GATE_DBGCK, RCC_DBGCFGR, 8), 155 CFG_GATE(GATE_TRACECK, RCC_DBGCFGR, 9), 156 CFG_GATE(GATE_DDRC1, RCC_DDRITFCR, 0), 157 CFG_GATE(GATE_DDRC1LP, RCC_DDRITFCR, 1), 158 CFG_GATE(GATE_DDRPHYC, RCC_DDRITFCR, 4), 159 CFG_GATE(GATE_DDRPHYCLP, RCC_DDRITFCR, 5), 160 CFG_GATE(GATE_DDRCAPB, RCC_DDRITFCR, 6), 161 CFG_GATE(GATE_DDRCAPBLP, RCC_DDRITFCR, 7), 162 CFG_GATE(GATE_AXIDCG, RCC_DDRITFCR, 8), 163 CFG_GATE(GATE_DDRPHYCAPB, RCC_DDRITFCR, 9), 164 CFG_GATE(GATE_DDRPHYCAPBLP, RCC_DDRITFCR, 10), 165 CFG_GATE_SETCLR(GATE_TIM2, RCC_MP_APB1ENSETR, 0), 166 CFG_GATE_SETCLR(GATE_TIM3, RCC_MP_APB1ENSETR, 1), 167 CFG_GATE_SETCLR(GATE_TIM4, RCC_MP_APB1ENSETR, 2), 168 CFG_GATE_SETCLR(GATE_TIM5, RCC_MP_APB1ENSETR, 3), 169 CFG_GATE_SETCLR(GATE_TIM6, RCC_MP_APB1ENSETR, 4), 170 CFG_GATE_SETCLR(GATE_TIM7, RCC_MP_APB1ENSETR, 5), 171 CFG_GATE_SETCLR(GATE_LPTIM1, RCC_MP_APB1ENSETR, 9), 172 CFG_GATE_SETCLR(GATE_SPI2, RCC_MP_APB1ENSETR, 11), 173 CFG_GATE_SETCLR(GATE_SPI3, RCC_MP_APB1ENSETR, 12), 174 CFG_GATE_SETCLR(GATE_USART3, RCC_MP_APB1ENSETR, 15), 175 CFG_GATE_SETCLR(GATE_UART4, RCC_MP_APB1ENSETR, 16), 176 CFG_GATE_SETCLR(GATE_UART5, RCC_MP_APB1ENSETR, 17), 177 CFG_GATE_SETCLR(GATE_UART7, RCC_MP_APB1ENSETR, 18), 178 CFG_GATE_SETCLR(GATE_UART8, RCC_MP_APB1ENSETR, 19), 179 CFG_GATE_SETCLR(GATE_I2C1, RCC_MP_APB1ENSETR, 21), 180 CFG_GATE_SETCLR(GATE_I2C2, RCC_MP_APB1ENSETR, 22), 181 CFG_GATE_SETCLR(GATE_SPDIF, RCC_MP_APB1ENSETR, 26), 182 CFG_GATE_SETCLR(GATE_TIM1, RCC_MP_APB2ENSETR, 0), 183 CFG_GATE_SETCLR(GATE_TIM8, RCC_MP_APB2ENSETR, 1), 184 CFG_GATE_SETCLR(GATE_SPI1, RCC_MP_APB2ENSETR, 8), 185 CFG_GATE_SETCLR(GATE_USART6, RCC_MP_APB2ENSETR, 13), 186 CFG_GATE_SETCLR(GATE_SAI1, RCC_MP_APB2ENSETR, 16), 187 CFG_GATE_SETCLR(GATE_SAI2, RCC_MP_APB2ENSETR, 17), 188 CFG_GATE_SETCLR(GATE_DFSDM, RCC_MP_APB2ENSETR, 20), 189 CFG_GATE_SETCLR(GATE_ADFSDM, RCC_MP_APB2ENSETR, 21), 190 CFG_GATE_SETCLR(GATE_FDCAN, RCC_MP_APB2ENSETR, 24), 191 CFG_GATE_SETCLR(GATE_LPTIM2, RCC_MP_APB3ENSETR, 0), 192 CFG_GATE_SETCLR(GATE_LPTIM3, RCC_MP_APB3ENSETR, 1), 193 CFG_GATE_SETCLR(GATE_LPTIM4, RCC_MP_APB3ENSETR, 2), 194 CFG_GATE_SETCLR(GATE_LPTIM5, RCC_MP_APB3ENSETR, 3), 195 CFG_GATE_SETCLR(GATE_VREF, RCC_MP_APB3ENSETR, 13), 196 CFG_GATE_SETCLR(GATE_DTS, RCC_MP_APB3ENSETR, 16), 197 CFG_GATE_SETCLR(GATE_PMBCTRL, RCC_MP_APB3ENSETR, 17), 198 CFG_GATE_SETCLR(GATE_HDP, RCC_MP_APB3ENSETR, 20), 199 CFG_GATE_SETCLR(GATE_SYSCFG, RCC_MP_NS_APB3ENSETR, 0), 200 CFG_GATE_SETCLR(GATE_DCMIPP, RCC_MP_APB4ENSETR, 1), 201 CFG_GATE_SETCLR(GATE_DDRPERFM, RCC_MP_APB4ENSETR, 8), 202 CFG_GATE_SETCLR(GATE_IWDG2APB, RCC_MP_APB4ENSETR, 15), 203 CFG_GATE_SETCLR(GATE_USBPHY, RCC_MP_APB4ENSETR, 16), 204 CFG_GATE_SETCLR(GATE_STGENRO, RCC_MP_APB4ENSETR, 20), 205 CFG_GATE_SETCLR(GATE_LTDC, RCC_MP_NS_APB4ENSETR, 0), 206 CFG_GATE_SETCLR(GATE_RTCAPB, RCC_MP_APB5ENSETR, 8), 207 CFG_GATE_SETCLR(GATE_TZC, RCC_MP_APB5ENSETR, 11), 208 CFG_GATE_SETCLR(GATE_ETZPC, RCC_MP_APB5ENSETR, 13), 209 CFG_GATE_SETCLR(GATE_IWDG1APB, RCC_MP_APB5ENSETR, 15), 210 CFG_GATE_SETCLR(GATE_BSEC, RCC_MP_APB5ENSETR, 16), 211 CFG_GATE_SETCLR(GATE_STGENC, RCC_MP_APB5ENSETR, 20), 212 CFG_GATE_SETCLR(GATE_USART1, RCC_MP_APB6ENSETR, 0), 213 CFG_GATE_SETCLR(GATE_USART2, RCC_MP_APB6ENSETR, 1), 214 CFG_GATE_SETCLR(GATE_SPI4, RCC_MP_APB6ENSETR, 2), 215 CFG_GATE_SETCLR(GATE_SPI5, RCC_MP_APB6ENSETR, 3), 216 CFG_GATE_SETCLR(GATE_I2C3, RCC_MP_APB6ENSETR, 4), 217 CFG_GATE_SETCLR(GATE_I2C4, RCC_MP_APB6ENSETR, 5), 218 CFG_GATE_SETCLR(GATE_I2C5, RCC_MP_APB6ENSETR, 6), 219 CFG_GATE_SETCLR(GATE_TIM12, RCC_MP_APB6ENSETR, 7), 220 CFG_GATE_SETCLR(GATE_TIM13, RCC_MP_APB6ENSETR, 8), 221 CFG_GATE_SETCLR(GATE_TIM14, RCC_MP_APB6ENSETR, 9), 222 CFG_GATE_SETCLR(GATE_TIM15, RCC_MP_APB6ENSETR, 10), 223 CFG_GATE_SETCLR(GATE_TIM16, RCC_MP_APB6ENSETR, 11), 224 CFG_GATE_SETCLR(GATE_TIM17, RCC_MP_APB6ENSETR, 12), 225 CFG_GATE_SETCLR(GATE_DMA1, RCC_MP_AHB2ENSETR, 0), 226 CFG_GATE_SETCLR(GATE_DMA2, RCC_MP_AHB2ENSETR, 1), 227 CFG_GATE_SETCLR(GATE_DMAMUX1, RCC_MP_AHB2ENSETR, 2), 228 CFG_GATE_SETCLR(GATE_DMA3, RCC_MP_AHB2ENSETR, 3), 229 CFG_GATE_SETCLR(GATE_DMAMUX2, RCC_MP_AHB2ENSETR, 4), 230 CFG_GATE_SETCLR(GATE_ADC1, RCC_MP_AHB2ENSETR, 5), 231 CFG_GATE_SETCLR(GATE_ADC2, RCC_MP_AHB2ENSETR, 6), 232 CFG_GATE_SETCLR(GATE_USBO, RCC_MP_AHB2ENSETR, 8), 233 CFG_GATE_SETCLR(GATE_TSC, RCC_MP_AHB4ENSETR, 15), 234 CFG_GATE_SETCLR(GATE_GPIOA, RCC_MP_NS_AHB4ENSETR, 0), 235 CFG_GATE_SETCLR(GATE_GPIOB, RCC_MP_NS_AHB4ENSETR, 1), 236 CFG_GATE_SETCLR(GATE_GPIOC, RCC_MP_NS_AHB4ENSETR, 2), 237 CFG_GATE_SETCLR(GATE_GPIOD, RCC_MP_NS_AHB4ENSETR, 3), 238 CFG_GATE_SETCLR(GATE_GPIOE, RCC_MP_NS_AHB4ENSETR, 4), 239 CFG_GATE_SETCLR(GATE_GPIOF, RCC_MP_NS_AHB4ENSETR, 5), 240 CFG_GATE_SETCLR(GATE_GPIOG, RCC_MP_NS_AHB4ENSETR, 6), 241 CFG_GATE_SETCLR(GATE_GPIOH, RCC_MP_NS_AHB4ENSETR, 7), 242 CFG_GATE_SETCLR(GATE_GPIOI, RCC_MP_NS_AHB4ENSETR, 8), 243 CFG_GATE_SETCLR(GATE_PKA, RCC_MP_AHB5ENSETR, 2), 244 CFG_GATE_SETCLR(GATE_SAES, RCC_MP_AHB5ENSETR, 3), 245 CFG_GATE_SETCLR(GATE_CRYP1, RCC_MP_AHB5ENSETR, 4), 246 CFG_GATE_SETCLR(GATE_HASH1, RCC_MP_AHB5ENSETR, 5), 247 CFG_GATE_SETCLR(GATE_RNG1, RCC_MP_AHB5ENSETR, 6), 248 CFG_GATE_SETCLR(GATE_BKPSRAM, RCC_MP_AHB5ENSETR, 8), 249 CFG_GATE_SETCLR(GATE_AXIMC, RCC_MP_AHB5ENSETR, 16), 250 CFG_GATE_SETCLR(GATE_MCE, RCC_MP_AHB6ENSETR, 1), 251 CFG_GATE_SETCLR(GATE_ETH1CK, RCC_MP_AHB6ENSETR, 7), 252 CFG_GATE_SETCLR(GATE_ETH1TX, RCC_MP_AHB6ENSETR, 8), 253 CFG_GATE_SETCLR(GATE_ETH1RX, RCC_MP_AHB6ENSETR, 9), 254 CFG_GATE_SETCLR(GATE_ETH1MAC, RCC_MP_AHB6ENSETR, 10), 255 CFG_GATE_SETCLR(GATE_FMC, RCC_MP_AHB6ENSETR, 12), 256 CFG_GATE_SETCLR(GATE_QSPI, RCC_MP_AHB6ENSETR, 14), 257 CFG_GATE_SETCLR(GATE_SDMMC1, RCC_MP_AHB6ENSETR, 16), 258 CFG_GATE_SETCLR(GATE_SDMMC2, RCC_MP_AHB6ENSETR, 17), 259 CFG_GATE_SETCLR(GATE_CRC1, RCC_MP_AHB6ENSETR, 20), 260 CFG_GATE_SETCLR(GATE_USBH, RCC_MP_AHB6ENSETR, 24), 261 CFG_GATE_SETCLR(GATE_ETH2CK, RCC_MP_AHB6ENSETR, 27), 262 CFG_GATE_SETCLR(GATE_ETH2TX, RCC_MP_AHB6ENSETR, 28), 263 CFG_GATE_SETCLR(GATE_ETH2RX, RCC_MP_AHB6ENSETR, 29), 264 CFG_GATE_SETCLR(GATE_ETH2MAC, RCC_MP_AHB6ENSETR, 30), 265 CFG_GATE_SETCLR(GATE_ETH1STP, RCC_MP_AHB6LPENSETR, 11), 266 CFG_GATE_SETCLR(GATE_ETH2STP, RCC_MP_AHB6LPENSETR, 31), 267 CFG_GATE_SETCLR(GATE_MDMA, RCC_MP_NS_AHB6ENSETR, 0), 268 }; 269 270 /* STM32 Divivers definition */ 271 enum enum_div_cfg { 272 DIV_RTC, 273 DIV_HSI, 274 DIV_MCO1, 275 DIV_MCO2, 276 DIV_TRACE, 277 DIV_ETH1PTP, 278 DIV_ETH2PTP, 279 DIV_NB 280 }; 281 282 static const struct clk_div_table ck_trace_div_table[] = { 283 { 0, 1 }, { 1, 2 }, { 2, 4 }, { 3, 8 }, 284 { 4, 16 }, { 5, 16 }, { 6, 16 }, { 7, 16 }, 285 { 0 }, 286 }; 287 288 #define CFG_DIV(_id, _offset, _shift, _width, _flags, _table, _ready)\ 289 [(_id)] = {\ 290 .offset = (_offset),\ 291 .shift = (_shift),\ 292 .width = (_width),\ 293 .flags = (_flags),\ 294 .table = (_table),\ 295 .ready = (_ready),\ 296 } 297 298 static const struct stm32_div_cfg stm32mp13_dividers[DIV_NB] = { 299 CFG_DIV(DIV_RTC, RCC_RTCDIVR, 0, 6, 0, NULL, DIV_NO_RDY), 300 CFG_DIV(DIV_MCO1, RCC_MCO1CFGR, 4, 4, 0, NULL, DIV_NO_RDY), 301 CFG_DIV(DIV_MCO2, RCC_MCO2CFGR, 4, 4, 0, NULL, DIV_NO_RDY), 302 CFG_DIV(DIV_TRACE, RCC_DBGCFGR, 0, 3, 0, ck_trace_div_table, DIV_NO_RDY), 303 CFG_DIV(DIV_ETH1PTP, RCC_ETH12CKSELR, 4, 4, 0, NULL, DIV_NO_RDY), 304 CFG_DIV(DIV_ETH2PTP, RCC_ETH12CKSELR, 12, 4, 0, NULL, DIV_NO_RDY), 305 }; 306 307 /* STM32 Muxes definition */ 308 enum enum_mux_cfg { 309 MUX_ADC1, 310 MUX_ADC2, 311 MUX_DCMIPP, 312 MUX_ETH1, 313 MUX_ETH2, 314 MUX_FDCAN, 315 MUX_FMC, 316 MUX_I2C12, 317 MUX_I2C3, 318 MUX_I2C4, 319 MUX_I2C5, 320 MUX_LPTIM1, 321 MUX_LPTIM2, 322 MUX_LPTIM3, 323 MUX_LPTIM45, 324 MUX_MCO1, 325 MUX_MCO2, 326 MUX_QSPI, 327 MUX_RNG1, 328 MUX_SAES, 329 MUX_SAI1, 330 MUX_SAI2, 331 MUX_SDMMC1, 332 MUX_SDMMC2, 333 MUX_SPDIF, 334 MUX_SPI1, 335 MUX_SPI23, 336 MUX_SPI4, 337 MUX_SPI5, 338 MUX_STGEN, 339 MUX_UART1, 340 MUX_UART2, 341 MUX_UART4, 342 MUX_UART6, 343 MUX_UART35, 344 MUX_UART78, 345 MUX_USBO, 346 MUX_USBPHY, 347 MUX_NB 348 }; 349 350 #define _CFG_MUX(_id, _offset, _shift, _witdh, _ready, _flags)\ 351 [_id] = {\ 352 .offset = (_offset),\ 353 .shift = (_shift),\ 354 .width = (_witdh),\ 355 .ready = (_ready),\ 356 .flags = (_flags),\ 357 } 358 359 #define CFG_MUX(_id, _offset, _shift, _witdh)\ 360 _CFG_MUX(_id, _offset, _shift, _witdh, MUX_NO_RDY, 0) 361 362 static const struct stm32_mux_cfg stm32mp13_muxes[] = { 363 CFG_MUX(MUX_I2C12, RCC_I2C12CKSELR, 0, 3), 364 CFG_MUX(MUX_LPTIM45, RCC_LPTIM45CKSELR, 0, 3), 365 CFG_MUX(MUX_SPI23, RCC_SPI2S23CKSELR, 0, 3), 366 CFG_MUX(MUX_UART35, RCC_UART35CKSELR, 0, 3), 367 CFG_MUX(MUX_UART78, RCC_UART78CKSELR, 0, 3), 368 CFG_MUX(MUX_ADC1, RCC_ADC12CKSELR, 0, 2), 369 CFG_MUX(MUX_ADC2, RCC_ADC12CKSELR, 2, 2), 370 CFG_MUX(MUX_DCMIPP, RCC_DCMIPPCKSELR, 0, 2), 371 CFG_MUX(MUX_ETH1, RCC_ETH12CKSELR, 0, 2), 372 CFG_MUX(MUX_ETH2, RCC_ETH12CKSELR, 8, 2), 373 CFG_MUX(MUX_FDCAN, RCC_FDCANCKSELR, 0, 2), 374 CFG_MUX(MUX_I2C3, RCC_I2C345CKSELR, 0, 3), 375 CFG_MUX(MUX_I2C4, RCC_I2C345CKSELR, 3, 3), 376 CFG_MUX(MUX_I2C5, RCC_I2C345CKSELR, 6, 3), 377 CFG_MUX(MUX_LPTIM1, RCC_LPTIM1CKSELR, 0, 3), 378 CFG_MUX(MUX_LPTIM2, RCC_LPTIM23CKSELR, 0, 3), 379 CFG_MUX(MUX_LPTIM3, RCC_LPTIM23CKSELR, 3, 3), 380 CFG_MUX(MUX_MCO1, RCC_MCO1CFGR, 0, 3), 381 CFG_MUX(MUX_MCO2, RCC_MCO2CFGR, 0, 3), 382 CFG_MUX(MUX_RNG1, RCC_RNG1CKSELR, 0, 2), 383 CFG_MUX(MUX_SAES, RCC_SAESCKSELR, 0, 2), 384 CFG_MUX(MUX_SAI1, RCC_SAI1CKSELR, 0, 3), 385 CFG_MUX(MUX_SAI2, RCC_SAI2CKSELR, 0, 3), 386 CFG_MUX(MUX_SPDIF, RCC_SPDIFCKSELR, 0, 2), 387 CFG_MUX(MUX_SPI1, RCC_SPI2S1CKSELR, 0, 3), 388 CFG_MUX(MUX_SPI4, RCC_SPI45CKSELR, 0, 3), 389 CFG_MUX(MUX_SPI5, RCC_SPI45CKSELR, 3, 3), 390 CFG_MUX(MUX_STGEN, RCC_STGENCKSELR, 0, 2), 391 CFG_MUX(MUX_UART1, RCC_UART12CKSELR, 0, 3), 392 CFG_MUX(MUX_UART2, RCC_UART12CKSELR, 3, 3), 393 CFG_MUX(MUX_UART4, RCC_UART4CKSELR, 0, 3), 394 CFG_MUX(MUX_UART6, RCC_UART6CKSELR, 0, 3), 395 CFG_MUX(MUX_USBO, RCC_USBCKSELR, 4, 1), 396 CFG_MUX(MUX_USBPHY, RCC_USBCKSELR, 0, 2), 397 CFG_MUX(MUX_FMC, RCC_FMCCKSELR, 0, 2), 398 CFG_MUX(MUX_QSPI, RCC_QSPICKSELR, 0, 2), 399 CFG_MUX(MUX_SDMMC1, RCC_SDMMC12CKSELR, 0, 3), 400 CFG_MUX(MUX_SDMMC2, RCC_SDMMC12CKSELR, 3, 3), 401 }; 402 403 struct clk_stm32_securiy { 404 u32 offset; 405 u8 bit_idx; 406 unsigned long scmi_id; 407 }; 408 409 enum security_clk { 410 SECF_NONE, 411 SECF_LPTIM2, 412 SECF_LPTIM3, 413 SECF_VREF, 414 SECF_DCMIPP, 415 SECF_USBPHY, 416 SECF_TZC, 417 SECF_ETZPC, 418 SECF_IWDG1, 419 SECF_BSEC, 420 SECF_STGENC, 421 SECF_STGENRO, 422 SECF_USART1, 423 SECF_USART2, 424 SECF_SPI4, 425 SECF_SPI5, 426 SECF_I2C3, 427 SECF_I2C4, 428 SECF_I2C5, 429 SECF_TIM12, 430 SECF_TIM13, 431 SECF_TIM14, 432 SECF_TIM15, 433 SECF_TIM16, 434 SECF_TIM17, 435 SECF_DMA3, 436 SECF_DMAMUX2, 437 SECF_ADC1, 438 SECF_ADC2, 439 SECF_USBO, 440 SECF_TSC, 441 SECF_PKA, 442 SECF_SAES, 443 SECF_CRYP1, 444 SECF_HASH1, 445 SECF_RNG1, 446 SECF_BKPSRAM, 447 SECF_MCE, 448 SECF_FMC, 449 SECF_QSPI, 450 SECF_SDMMC1, 451 SECF_SDMMC2, 452 SECF_ETH1CK, 453 SECF_ETH1TX, 454 SECF_ETH1RX, 455 SECF_ETH1MAC, 456 SECF_ETH1STP, 457 SECF_ETH2CK, 458 SECF_ETH2TX, 459 SECF_ETH2RX, 460 SECF_ETH2MAC, 461 SECF_ETH2STP, 462 SECF_MCO1, 463 SECF_MCO2 464 }; 465 466 #define SECF(_sec_id, _offset, _bit_idx)[_sec_id] = {\ 467 .offset = _offset,\ 468 .bit_idx = _bit_idx,\ 469 .scmi_id = -1,\ 470 } 471 472 static const struct clk_stm32_securiy stm32mp13_security[] = { 473 SECF(SECF_LPTIM2, RCC_APB3SECSR, RCC_APB3SECSR_LPTIM2SECF), 474 SECF(SECF_LPTIM3, RCC_APB3SECSR, RCC_APB3SECSR_LPTIM3SECF), 475 SECF(SECF_VREF, RCC_APB3SECSR, RCC_APB3SECSR_VREFSECF), 476 SECF(SECF_DCMIPP, RCC_APB4SECSR, RCC_APB4SECSR_DCMIPPSECF), 477 SECF(SECF_USBPHY, RCC_APB4SECSR, RCC_APB4SECSR_USBPHYSECF), 478 SECF(SECF_TZC, RCC_APB5SECSR, RCC_APB5SECSR_TZCSECF), 479 SECF(SECF_ETZPC, RCC_APB5SECSR, RCC_APB5SECSR_ETZPCSECF), 480 SECF(SECF_IWDG1, RCC_APB5SECSR, RCC_APB5SECSR_IWDG1SECF), 481 SECF(SECF_BSEC, RCC_APB5SECSR, RCC_APB5SECSR_BSECSECF), 482 SECF(SECF_STGENC, RCC_APB5SECSR, RCC_APB5SECSR_STGENCSECF), 483 SECF(SECF_STGENRO, RCC_APB5SECSR, RCC_APB5SECSR_STGENROSECF), 484 SECF(SECF_USART1, RCC_APB6SECSR, RCC_APB6SECSR_USART1SECF), 485 SECF(SECF_USART2, RCC_APB6SECSR, RCC_APB6SECSR_USART2SECF), 486 SECF(SECF_SPI4, RCC_APB6SECSR, RCC_APB6SECSR_SPI4SECF), 487 SECF(SECF_SPI5, RCC_APB6SECSR, RCC_APB6SECSR_SPI5SECF), 488 SECF(SECF_I2C3, RCC_APB6SECSR, RCC_APB6SECSR_I2C3SECF), 489 SECF(SECF_I2C4, RCC_APB6SECSR, RCC_APB6SECSR_I2C4SECF), 490 SECF(SECF_I2C5, RCC_APB6SECSR, RCC_APB6SECSR_I2C5SECF), 491 SECF(SECF_TIM12, RCC_APB6SECSR, RCC_APB6SECSR_TIM12SECF), 492 SECF(SECF_TIM13, RCC_APB6SECSR, RCC_APB6SECSR_TIM13SECF), 493 SECF(SECF_TIM14, RCC_APB6SECSR, RCC_APB6SECSR_TIM14SECF), 494 SECF(SECF_TIM15, RCC_APB6SECSR, RCC_APB6SECSR_TIM15SECF), 495 SECF(SECF_TIM16, RCC_APB6SECSR, RCC_APB6SECSR_TIM16SECF), 496 SECF(SECF_TIM17, RCC_APB6SECSR, RCC_APB6SECSR_TIM17SECF), 497 SECF(SECF_DMA3, RCC_AHB2SECSR, RCC_AHB2SECSR_DMA3SECF), 498 SECF(SECF_DMAMUX2, RCC_AHB2SECSR, RCC_AHB2SECSR_DMAMUX2SECF), 499 SECF(SECF_ADC1, RCC_AHB2SECSR, RCC_AHB2SECSR_ADC1SECF), 500 SECF(SECF_ADC2, RCC_AHB2SECSR, RCC_AHB2SECSR_ADC2SECF), 501 SECF(SECF_USBO, RCC_AHB2SECSR, RCC_AHB2SECSR_USBOSECF), 502 SECF(SECF_TSC, RCC_AHB4SECSR, RCC_AHB4SECSR_TSCSECF), 503 SECF(SECF_PKA, RCC_AHB5SECSR, RCC_AHB5SECSR_PKASECF), 504 SECF(SECF_SAES, RCC_AHB5SECSR, RCC_AHB5SECSR_SAESSECF), 505 SECF(SECF_CRYP1, RCC_AHB5SECSR, RCC_AHB5SECSR_CRYP1SECF), 506 SECF(SECF_HASH1, RCC_AHB5SECSR, RCC_AHB5SECSR_HASH1SECF), 507 SECF(SECF_RNG1, RCC_AHB5SECSR, RCC_AHB5SECSR_RNG1SECF), 508 SECF(SECF_BKPSRAM, RCC_AHB5SECSR, RCC_AHB5SECSR_BKPSRAMSECF), 509 SECF(SECF_MCE, RCC_AHB6SECSR, RCC_AHB6SECSR_MCESECF), 510 SECF(SECF_FMC, RCC_AHB6SECSR, RCC_AHB6SECSR_FMCSECF), 511 SECF(SECF_QSPI, RCC_AHB6SECSR, RCC_AHB6SECSR_QSPISECF), 512 SECF(SECF_SDMMC1, RCC_AHB6SECSR, RCC_AHB6SECSR_SDMMC1SECF), 513 SECF(SECF_SDMMC2, RCC_AHB6SECSR, RCC_AHB6SECSR_SDMMC2SECF), 514 SECF(SECF_ETH1CK, RCC_AHB6SECSR, RCC_AHB6SECSR_ETH1CKSECF), 515 SECF(SECF_ETH1TX, RCC_AHB6SECSR, RCC_AHB6SECSR_ETH1TXSECF), 516 SECF(SECF_ETH1RX, RCC_AHB6SECSR, RCC_AHB6SECSR_ETH1RXSECF), 517 SECF(SECF_ETH1MAC, RCC_AHB6SECSR, RCC_AHB6SECSR_ETH1MACSECF), 518 SECF(SECF_ETH1STP, RCC_AHB6SECSR, RCC_AHB6SECSR_ETH1STPSECF), 519 SECF(SECF_ETH2CK, RCC_AHB6SECSR, RCC_AHB6SECSR_ETH2CKSECF), 520 SECF(SECF_ETH2TX, RCC_AHB6SECSR, RCC_AHB6SECSR_ETH2TXSECF), 521 SECF(SECF_ETH2RX, RCC_AHB6SECSR, RCC_AHB6SECSR_ETH2RXSECF), 522 SECF(SECF_ETH2MAC, RCC_AHB6SECSR, RCC_AHB6SECSR_ETH2MACSECF), 523 SECF(SECF_ETH2STP, RCC_AHB6SECSR, RCC_AHB6SECSR_ETH2STPSECF), 524 SECF(SECF_MCO1, RCC_SECCFGR, RCC_SECCFGR_MCO1SEC), 525 SECF(SECF_MCO2, RCC_SECCFGR, RCC_SECCFGR_MCO2SEC), 526 }; 527 528 static const char * const eth12_src[] = { 529 "pll4_p", "pll3_q" 530 }; 531 532 static const char * const mco1_src[] = { 533 "ck_hsi", "ck_hse", "ck_csi", "ck_lsi", "ck_lse" 534 }; 535 536 static const char * const mco2_src[] = { 537 "ck_mpu", "ck_axi", "ck_mlahb", "pll4_p", "ck_hse", "ck_hsi" 538 }; 539 540 static struct clk_stm32_mux ck_ker_eth1 = { 541 .mux_id = MUX_ETH1, 542 .hw.init = CLK_HW_INIT_PARENTS("ck_ker_eth1", eth12_src, &clk_stm32_mux_ops, 543 CLK_OPS_PARENT_ENABLE | CLK_SET_RATE_NO_REPARENT), 544 }; 545 546 static struct clk_stm32_gate eth1ck_k = { 547 .gate_id = GATE_ETH1CK, 548 .hw.init = CLK_HW_INIT_HW("eth1ck_k", &ck_ker_eth1.hw, &clk_stm32_gate_ops, 0), 549 }; 550 551 static struct clk_stm32_div eth1ptp_k = { 552 .div_id = DIV_ETH1PTP, 553 .hw.init = CLK_HW_INIT_HW("eth1ptp_k", &ck_ker_eth1.hw, &clk_stm32_divider_ops, 554 CLK_SET_RATE_NO_REPARENT), 555 }; 556 557 static struct clk_stm32_composite ck_mco1 = { 558 .gate_id = GATE_MCO1, 559 .mux_id = MUX_MCO1, 560 .div_id = DIV_MCO1, 561 .hw.init = CLK_HW_INIT_PARENTS("ck_mco1", mco1_src, &clk_stm32_composite_ops, 562 CLK_OPS_PARENT_ENABLE | CLK_SET_RATE_NO_REPARENT | 563 CLK_IGNORE_UNUSED), 564 }; 565 566 static struct clk_stm32_composite ck_mco2 = { 567 .gate_id = GATE_MCO2, 568 .mux_id = MUX_MCO2, 569 .div_id = DIV_MCO2, 570 .hw.init = CLK_HW_INIT_PARENTS("ck_mco2", mco2_src, &clk_stm32_composite_ops, 571 CLK_OPS_PARENT_ENABLE | CLK_SET_RATE_NO_REPARENT | 572 CLK_IGNORE_UNUSED), 573 }; 574 575 static const struct clock_config stm32mp13_clock_cfg[] = { 576 STM32_MUX_CFG(NO_ID, ck_ker_eth1, SECF_ETH1CK), 577 STM32_GATE_CFG(ETH1CK_K, eth1ck_k, SECF_ETH1CK), 578 STM32_DIV_CFG(ETH1PTP_K, eth1ptp_k, SECF_ETH1CK), 579 STM32_COMPOSITE_CFG(CK_MCO1, ck_mco1, SECF_MCO1), 580 STM32_COMPOSITE_CFG(CK_MCO2, ck_mco2, SECF_MCO2), 581 }; 582 583 static int stm32mp13_clock_is_provided_by_secure(void __iomem *base, 584 const struct clock_config *cfg) 585 { 586 int sec_id = cfg->sec_id; 587 588 if (sec_id != SECF_NONE) { 589 const struct clk_stm32_securiy *secf; 590 591 secf = &stm32mp13_security[sec_id]; 592 593 return !!(readl(base + secf->offset) & BIT(secf->bit_idx)); 594 } 595 596 return 0; 597 } 598 599 static u16 stm32mp13_cpt_gate[GATE_NB]; 600 601 static struct clk_stm32_clock_data stm32mp13_clock_data = { 602 .gate_cpt = stm32mp13_cpt_gate, 603 .gates = stm32mp13_gates, 604 .muxes = stm32mp13_muxes, 605 .dividers = stm32mp13_dividers, 606 }; 607 608 static const struct stm32_rcc_match_data stm32mp13_data = { 609 .tab_clocks = stm32mp13_clock_cfg, 610 .num_clocks = ARRAY_SIZE(stm32mp13_clock_cfg), 611 .clock_data = &stm32mp13_clock_data, 612 .check_security = &stm32mp13_clock_is_provided_by_secure, 613 .maxbinding = STM32MP1_LAST_CLK, 614 .clear_offset = RCC_CLR_OFFSET, 615 }; 616 617 static const struct of_device_id stm32mp13_match_data[] = { 618 { 619 .compatible = "st,stm32mp13-rcc", 620 .data = &stm32mp13_data, 621 }, 622 { } 623 }; 624 MODULE_DEVICE_TABLE(of, stm32mp13_match_data); 625 626 static int stm32mp1_rcc_init(struct device *dev) 627 { 628 void __iomem *rcc_base; 629 int ret = -ENOMEM; 630 631 rcc_base = of_iomap(dev_of_node(dev), 0); 632 if (!rcc_base) { 633 dev_err(dev, "%pOFn: unable to map resource", dev_of_node(dev)); 634 goto out; 635 } 636 637 ret = stm32_rcc_init(dev, stm32mp13_match_data, rcc_base); 638 out: 639 if (ret) { 640 if (rcc_base) 641 iounmap(rcc_base); 642 643 of_node_put(dev_of_node(dev)); 644 } 645 646 return ret; 647 } 648 649 static int get_clock_deps(struct device *dev) 650 { 651 static const char * const clock_deps_name[] = { 652 "hsi", "hse", "csi", "lsi", "lse", 653 }; 654 size_t deps_size = sizeof(struct clk *) * ARRAY_SIZE(clock_deps_name); 655 struct clk **clk_deps; 656 int i; 657 658 clk_deps = devm_kzalloc(dev, deps_size, GFP_KERNEL); 659 if (!clk_deps) 660 return -ENOMEM; 661 662 for (i = 0; i < ARRAY_SIZE(clock_deps_name); i++) { 663 struct clk *clk = of_clk_get_by_name(dev_of_node(dev), 664 clock_deps_name[i]); 665 666 if (IS_ERR(clk)) { 667 if (PTR_ERR(clk) != -EINVAL && PTR_ERR(clk) != -ENOENT) 668 return PTR_ERR(clk); 669 } else { 670 /* Device gets a reference count on the clock */ 671 clk_deps[i] = devm_clk_get(dev, __clk_get_name(clk)); 672 clk_put(clk); 673 } 674 } 675 676 return 0; 677 } 678 679 static int stm32mp1_rcc_clocks_probe(struct platform_device *pdev) 680 { 681 struct device *dev = &pdev->dev; 682 int ret = get_clock_deps(dev); 683 684 if (!ret) 685 ret = stm32mp1_rcc_init(dev); 686 687 return ret; 688 } 689 690 static int stm32mp1_rcc_clocks_remove(struct platform_device *pdev) 691 { 692 struct device *dev = &pdev->dev; 693 struct device_node *child, *np = dev_of_node(dev); 694 695 for_each_available_child_of_node(np, child) 696 of_clk_del_provider(child); 697 698 return 0; 699 } 700 701 static struct platform_driver stm32mp13_rcc_clocks_driver = { 702 .driver = { 703 .name = "stm32mp13_rcc", 704 .of_match_table = stm32mp13_match_data, 705 }, 706 .probe = stm32mp1_rcc_clocks_probe, 707 .remove = stm32mp1_rcc_clocks_remove, 708 }; 709 710 static int __init stm32mp13_clocks_init(void) 711 { 712 return platform_driver_register(&stm32mp13_rcc_clocks_driver); 713 } 714 core_initcall(stm32mp13_clocks_init); 715