1 /* 2 * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 #include <string.h> 9 10 #include <platform_def.h> 11 12 #include <arch_helpers.h> 13 #include <common/debug.h> 14 #include <drivers/io/io_block.h> 15 #include <drivers/io/io_driver.h> 16 #include <drivers/io/io_dummy.h> 17 #include <drivers/io/io_mtd.h> 18 #include <drivers/io/io_storage.h> 19 #include <drivers/mmc.h> 20 #include <drivers/partition/partition.h> 21 #include <drivers/raw_nand.h> 22 #include <drivers/st/io_mmc.h> 23 #include <drivers/st/io_stm32image.h> 24 #include <drivers/st/stm32_fmc2_nand.h> 25 #include <drivers/st/stm32_sdmmc2.h> 26 #include <lib/mmio.h> 27 #include <lib/utils.h> 28 #include <plat/common/platform.h> 29 30 /* IO devices */ 31 static const io_dev_connector_t *dummy_dev_con; 32 static uintptr_t dummy_dev_handle; 33 static uintptr_t dummy_dev_spec; 34 35 static uintptr_t image_dev_handle; 36 static uintptr_t storage_dev_handle; 37 38 #if STM32MP_SDMMC || STM32MP_EMMC 39 static io_block_spec_t gpt_block_spec = { 40 .offset = 0, 41 .length = 34 * MMC_BLOCK_SIZE, /* Size of GPT table */ 42 }; 43 44 static uint32_t block_buffer[MMC_BLOCK_SIZE] __aligned(MMC_BLOCK_SIZE); 45 46 static const io_block_dev_spec_t mmc_block_dev_spec = { 47 /* It's used as temp buffer in block driver */ 48 .buffer = { 49 .offset = (size_t)&block_buffer, 50 .length = MMC_BLOCK_SIZE, 51 }, 52 .ops = { 53 .read = mmc_read_blocks, 54 .write = NULL, 55 }, 56 .block_size = MMC_BLOCK_SIZE, 57 }; 58 59 static const io_dev_connector_t *mmc_dev_con; 60 #endif /* STM32MP_SDMMC || STM32MP_EMMC */ 61 62 #if STM32MP_RAW_NAND 63 static io_mtd_dev_spec_t nand_dev_spec = { 64 .ops = { 65 .init = nand_raw_init, 66 .read = nand_read, 67 }, 68 }; 69 70 static const io_dev_connector_t *nand_dev_con; 71 #endif 72 73 #ifdef AARCH32_SP_OPTEE 74 static const struct stm32image_part_info optee_header_partition_spec = { 75 .name = OPTEE_HEADER_IMAGE_NAME, 76 .binary_type = OPTEE_HEADER_BINARY_TYPE, 77 }; 78 79 static const struct stm32image_part_info optee_pager_partition_spec = { 80 .name = OPTEE_PAGER_IMAGE_NAME, 81 .binary_type = OPTEE_PAGER_BINARY_TYPE, 82 }; 83 84 static const struct stm32image_part_info optee_paged_partition_spec = { 85 .name = OPTEE_PAGED_IMAGE_NAME, 86 .binary_type = OPTEE_PAGED_BINARY_TYPE, 87 }; 88 #else 89 static const io_block_spec_t bl32_block_spec = { 90 .offset = BL32_BASE, 91 .length = STM32MP_BL32_SIZE 92 }; 93 #endif 94 95 static const io_block_spec_t bl2_block_spec = { 96 .offset = BL2_BASE, 97 .length = STM32MP_BL2_SIZE, 98 }; 99 100 static const struct stm32image_part_info bl33_partition_spec = { 101 .name = BL33_IMAGE_NAME, 102 .binary_type = BL33_BINARY_TYPE, 103 }; 104 105 enum { 106 IMG_IDX_BL33, 107 #ifdef AARCH32_SP_OPTEE 108 IMG_IDX_OPTEE_HEADER, 109 IMG_IDX_OPTEE_PAGER, 110 IMG_IDX_OPTEE_PAGED, 111 #endif 112 IMG_IDX_NUM 113 }; 114 115 static struct stm32image_device_info stm32image_dev_info_spec __unused = { 116 .lba_size = MMC_BLOCK_SIZE, 117 .part_info[IMG_IDX_BL33] = { 118 .name = BL33_IMAGE_NAME, 119 .binary_type = BL33_BINARY_TYPE, 120 }, 121 #ifdef AARCH32_SP_OPTEE 122 .part_info[IMG_IDX_OPTEE_HEADER] = { 123 .name = OPTEE_HEADER_IMAGE_NAME, 124 .binary_type = OPTEE_HEADER_BINARY_TYPE, 125 }, 126 .part_info[IMG_IDX_OPTEE_PAGER] = { 127 .name = OPTEE_PAGER_IMAGE_NAME, 128 .binary_type = OPTEE_PAGER_BINARY_TYPE, 129 }, 130 .part_info[IMG_IDX_OPTEE_PAGED] = { 131 .name = OPTEE_PAGED_IMAGE_NAME, 132 .binary_type = OPTEE_PAGED_BINARY_TYPE, 133 }, 134 #endif 135 }; 136 137 static io_block_spec_t stm32image_block_spec = { 138 .offset = 0, 139 .length = 0, 140 }; 141 142 static const io_dev_connector_t *stm32image_dev_con __unused; 143 144 static int open_dummy(const uintptr_t spec); 145 static int open_image(const uintptr_t spec); 146 static int open_storage(const uintptr_t spec); 147 148 struct plat_io_policy { 149 uintptr_t *dev_handle; 150 uintptr_t image_spec; 151 int (*check)(const uintptr_t spec); 152 }; 153 154 static const struct plat_io_policy policies[] = { 155 [BL2_IMAGE_ID] = { 156 .dev_handle = &dummy_dev_handle, 157 .image_spec = (uintptr_t)&bl2_block_spec, 158 .check = open_dummy 159 }, 160 #ifdef AARCH32_SP_OPTEE 161 [BL32_IMAGE_ID] = { 162 .dev_handle = &image_dev_handle, 163 .image_spec = (uintptr_t)&optee_header_partition_spec, 164 .check = open_image 165 }, 166 [BL32_EXTRA1_IMAGE_ID] = { 167 .dev_handle = &image_dev_handle, 168 .image_spec = (uintptr_t)&optee_pager_partition_spec, 169 .check = open_image 170 }, 171 [BL32_EXTRA2_IMAGE_ID] = { 172 .dev_handle = &image_dev_handle, 173 .image_spec = (uintptr_t)&optee_paged_partition_spec, 174 .check = open_image 175 }, 176 #else 177 [BL32_IMAGE_ID] = { 178 .dev_handle = &dummy_dev_handle, 179 .image_spec = (uintptr_t)&bl32_block_spec, 180 .check = open_dummy 181 }, 182 #endif 183 [BL33_IMAGE_ID] = { 184 .dev_handle = &image_dev_handle, 185 .image_spec = (uintptr_t)&bl33_partition_spec, 186 .check = open_image 187 }, 188 #if STM32MP_SDMMC || STM32MP_EMMC 189 [GPT_IMAGE_ID] = { 190 .dev_handle = &storage_dev_handle, 191 .image_spec = (uintptr_t)&gpt_block_spec, 192 .check = open_storage 193 }, 194 #endif 195 [STM32_IMAGE_ID] = { 196 .dev_handle = &storage_dev_handle, 197 .image_spec = (uintptr_t)&stm32image_block_spec, 198 .check = open_storage 199 } 200 }; 201 202 static int open_dummy(const uintptr_t spec) 203 { 204 return io_dev_init(dummy_dev_handle, 0); 205 } 206 207 static int open_image(const uintptr_t spec) 208 { 209 return io_dev_init(image_dev_handle, 0); 210 } 211 212 static int open_storage(const uintptr_t spec) 213 { 214 return io_dev_init(storage_dev_handle, 0); 215 } 216 217 static void print_boot_device(boot_api_context_t *boot_context) 218 { 219 switch (boot_context->boot_interface_selected) { 220 case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_SD: 221 INFO("Using SDMMC\n"); 222 break; 223 case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_EMMC: 224 INFO("Using EMMC\n"); 225 break; 226 case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NAND_FMC: 227 INFO("Using FMC NAND\n"); 228 break; 229 default: 230 ERROR("Boot interface not found\n"); 231 panic(); 232 break; 233 } 234 235 if (boot_context->boot_interface_instance != 0U) { 236 INFO(" Instance %d\n", boot_context->boot_interface_instance); 237 } 238 } 239 240 #if STM32MP_SDMMC || STM32MP_EMMC 241 static void boot_mmc(enum mmc_device_type mmc_dev_type, 242 uint16_t boot_interface_instance) 243 { 244 int io_result __unused; 245 uint8_t idx; 246 struct stm32image_part_info *part; 247 struct stm32_sdmmc2_params params; 248 struct mmc_device_info device_info; 249 const partition_entry_t *entry; 250 251 zeromem(&device_info, sizeof(struct mmc_device_info)); 252 zeromem(¶ms, sizeof(struct stm32_sdmmc2_params)); 253 254 device_info.mmc_dev_type = mmc_dev_type; 255 256 switch (boot_interface_instance) { 257 case 1: 258 params.reg_base = STM32MP_SDMMC1_BASE; 259 break; 260 case 2: 261 params.reg_base = STM32MP_SDMMC2_BASE; 262 break; 263 case 3: 264 params.reg_base = STM32MP_SDMMC3_BASE; 265 break; 266 default: 267 WARN("SDMMC instance not found, using default\n"); 268 if (mmc_dev_type == MMC_IS_SD) { 269 params.reg_base = STM32MP_SDMMC1_BASE; 270 } else { 271 params.reg_base = STM32MP_SDMMC2_BASE; 272 } 273 break; 274 } 275 276 params.device_info = &device_info; 277 if (stm32_sdmmc2_mmc_init(¶ms) != 0) { 278 ERROR("SDMMC%u init failed\n", boot_interface_instance); 279 panic(); 280 } 281 282 /* Open MMC as a block device to read GPT table */ 283 io_result = register_io_dev_block(&mmc_dev_con); 284 if (io_result != 0) { 285 panic(); 286 } 287 288 io_result = io_dev_open(mmc_dev_con, (uintptr_t)&mmc_block_dev_spec, 289 &storage_dev_handle); 290 assert(io_result == 0); 291 292 partition_init(GPT_IMAGE_ID); 293 294 io_result = io_dev_close(storage_dev_handle); 295 assert(io_result == 0); 296 297 stm32image_dev_info_spec.device_size = 298 stm32_sdmmc2_mmc_get_device_size(); 299 300 for (idx = 0U; idx < IMG_IDX_NUM; idx++) { 301 part = &stm32image_dev_info_spec.part_info[idx]; 302 entry = get_partition_entry(part->name); 303 if (entry == NULL) { 304 ERROR("Partition %s not found\n", part->name); 305 panic(); 306 } 307 308 part->part_offset = entry->start; 309 part->bkp_offset = 0U; 310 } 311 312 /* 313 * Re-open MMC with io_mmc, for better perfs compared to 314 * io_block. 315 */ 316 io_result = register_io_dev_mmc(&mmc_dev_con); 317 assert(io_result == 0); 318 319 io_result = io_dev_open(mmc_dev_con, 0, &storage_dev_handle); 320 assert(io_result == 0); 321 322 io_result = register_io_dev_stm32image(&stm32image_dev_con); 323 assert(io_result == 0); 324 325 io_result = io_dev_open(stm32image_dev_con, 326 (uintptr_t)&stm32image_dev_info_spec, 327 &image_dev_handle); 328 assert(io_result == 0); 329 } 330 #endif /* STM32MP_SDMMC || STM32MP_EMMC */ 331 332 #if STM32MP_RAW_NAND 333 static void boot_fmc2_nand(boot_api_context_t *boot_context) 334 { 335 int io_result __unused; 336 uint8_t idx; 337 struct stm32image_part_info *part; 338 339 io_result = stm32_fmc2_init(); 340 assert(io_result == 0); 341 342 /* Register the IO device on this platform */ 343 io_result = register_io_dev_mtd(&nand_dev_con); 344 assert(io_result == 0); 345 346 /* Open connections to device */ 347 io_result = io_dev_open(nand_dev_con, (uintptr_t)&nand_dev_spec, 348 &storage_dev_handle); 349 assert(io_result == 0); 350 351 stm32image_dev_info_spec.device_size = nand_dev_spec.device_size; 352 353 idx = IMG_IDX_BL33; 354 part = &stm32image_dev_info_spec.part_info[idx]; 355 part->part_offset = STM32MP_NAND_BL33_OFFSET; 356 part->bkp_offset = nand_dev_spec.erase_size; 357 358 #ifdef AARCH32_SP_OPTEE 359 idx = IMG_IDX_OPTEE_HEADER; 360 part = &stm32image_dev_info_spec.part_info[idx]; 361 part->part_offset = STM32MP_NAND_TEEH_OFFSET; 362 part->bkp_offset = nand_dev_spec.erase_size; 363 364 idx = IMG_IDX_OPTEE_PAGED; 365 part = &stm32image_dev_info_spec.part_info[idx]; 366 part->part_offset = STM32MP_NAND_TEED_OFFSET; 367 part->bkp_offset = nand_dev_spec.erase_size; 368 369 idx = IMG_IDX_OPTEE_PAGER; 370 part = &stm32image_dev_info_spec.part_info[idx]; 371 part->part_offset = STM32MP_NAND_TEEX_OFFSET; 372 part->bkp_offset = nand_dev_spec.erase_size; 373 #endif 374 375 io_result = register_io_dev_stm32image(&stm32image_dev_con); 376 assert(io_result == 0); 377 378 io_result = io_dev_open(stm32image_dev_con, 379 (uintptr_t)&stm32image_dev_info_spec, 380 &image_dev_handle); 381 assert(io_result == 0); 382 } 383 #endif /* STM32MP_RAW_NAND */ 384 385 void stm32mp_io_setup(void) 386 { 387 int io_result __unused; 388 boot_api_context_t *boot_context = 389 (boot_api_context_t *)stm32mp_get_boot_ctx_address(); 390 391 print_boot_device(boot_context); 392 393 if ((boot_context->boot_partition_used_toboot == 1U) || 394 (boot_context->boot_partition_used_toboot == 2U)) { 395 INFO("Boot used partition fsbl%d\n", 396 boot_context->boot_partition_used_toboot); 397 } 398 399 io_result = register_io_dev_dummy(&dummy_dev_con); 400 assert(io_result == 0); 401 402 io_result = io_dev_open(dummy_dev_con, dummy_dev_spec, 403 &dummy_dev_handle); 404 assert(io_result == 0); 405 406 switch (boot_context->boot_interface_selected) { 407 #if STM32MP_SDMMC 408 case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_SD: 409 dmbsy(); 410 boot_mmc(MMC_IS_SD, boot_context->boot_interface_instance); 411 break; 412 #endif 413 #if STM32MP_EMMC 414 case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_EMMC: 415 dmbsy(); 416 boot_mmc(MMC_IS_EMMC, boot_context->boot_interface_instance); 417 break; 418 #endif 419 #if STM32MP_RAW_NAND 420 case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NAND_FMC: 421 dmbsy(); 422 boot_fmc2_nand(boot_context); 423 break; 424 #endif 425 426 default: 427 ERROR("Boot interface %d not supported\n", 428 boot_context->boot_interface_selected); 429 break; 430 } 431 } 432 433 /* 434 * Return an IO device handle and specification which can be used to access 435 * an image. Use this to enforce platform load policy. 436 */ 437 int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle, 438 uintptr_t *image_spec) 439 { 440 int rc; 441 const struct plat_io_policy *policy; 442 443 assert(image_id < ARRAY_SIZE(policies)); 444 445 policy = &policies[image_id]; 446 rc = policy->check(policy->image_spec); 447 if (rc == 0) { 448 *image_spec = policy->image_spec; 449 *dev_handle = *(policy->dev_handle); 450 } 451 452 return rc; 453 } 454