1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd 4 */ 5 6 #include <common.h> 7 #include <android_image.h> 8 #include <errno.h> 9 #include <malloc.h> 10 #include <misc.h> 11 #include <spl.h> 12 #include <spl_rkfw.h> 13 #include <linux/kernel.h> 14 #include <asm/arch/spl_resource_img.h> 15 16 #ifdef CONFIG_SPL_ATF 17 static const __aligned(16) struct s_fip_name_id fip_name_id[] = { 18 { BL30_IMAGE_NAME, UUID_SCP_FIRMWARE_BL30 }, /* optional */ 19 { BL31_IMAGE_NAME, UUID_EL3_RUNTIME_FIRMWARE_BL31 }, /* mandatory */ 20 { BL32_IMAGE_NAME, UUID_SECURE_PAYLOAD_BL32 }, /* optional */ 21 }; 22 23 static int file2comp_id(const char *file_name, u32 *comp_id) 24 { 25 int i; 26 27 for (i = 0; i < ARRAY_SIZE(fip_name_id); i++) { 28 if (!strcmp(file_name, fip_name_id[i].name)) { 29 *comp_id = fip_name_id[i].id; 30 return 0; 31 } 32 } 33 34 return -ENOENT; 35 } 36 37 static int open_image(const char *image_name, tboot_entry *entry, 38 struct tag_tboot_header_2k *hdr) 39 { 40 u32 i, component_num, sign_offset; 41 component_data *pcompdata; 42 boot_component *pcomp; 43 int n_found = 0; 44 u32 comp_id; 45 int ret; 46 47 ret = file2comp_id(image_name, &comp_id); 48 if (ret) { 49 printf("Can't find unknown image: %s\n", image_name); 50 return ret; 51 } 52 53 component_num = (hdr->size >> 16) & 0xffff; 54 sign_offset = (hdr->size & 0xffff) << 2; 55 pcompdata = (component_data *)((char *)hdr + sizeof(tboot_header)); 56 pcomp = (boot_component *)((char *)hdr + sign_offset + SIGNATURE_SIZE); 57 58 for (i = 0; i < component_num; i++) { 59 if (comp_id == pcomp->component_id) { 60 if (n_found < MAX_BL_CODE_NUM) { 61 memcpy(&entry[n_found].component, pcomp, 62 sizeof(boot_component)); 63 memcpy(&entry[n_found].compdata, pcompdata, 64 sizeof(component_data)); 65 n_found++; 66 } else { 67 printf("Image num excess max: %d!\n", 68 MAX_BL_CODE_NUM); 69 return -EINVAL; 70 } 71 } else { 72 if (n_found > 0) 73 break; 74 } 75 76 pcomp++; 77 pcompdata++; 78 } 79 80 if (!n_found) { 81 printf("No find %s\n", image_name); 82 return -ENONET; 83 } 84 85 return n_found; 86 } 87 88 static int check_image(struct tag_tboot_header_2k *hdr) 89 { 90 u32 hash_format[] = { 0, 160, 256, 256 }; 91 92 /* HASH format identifier */ 93 return (hash_format[hdr->flags & 0x3] == 0) ? -EINVAL : 0; 94 } 95 96 static int load_image(struct spl_load_info *info, 97 struct tag_tboot_header_2k *hdr, 98 u32 image_sector, 99 const char *image_name, 100 uintptr_t *entry_point) 101 { 102 tboot_entry entry[MAX_BL_CODE_NUM]; 103 void *image_buf = NULL; 104 ulong load_addr; 105 u32 sect_off; 106 u32 sect_cnt; 107 int image_num; 108 int i, ret; 109 110 /* Parse components from image header */ 111 image_num = open_image(image_name, entry, hdr); 112 if (image_num < 0) 113 return image_num; 114 115 /* Get all component */ 116 for (i = 0; i < image_num; i++) { 117 load_addr = entry[i].compdata.load_addr; 118 sect_cnt = entry[i].component.image_size; 119 sect_off = entry[i].component.storage_addr; 120 121 printf("%s[%d]: addr=0x%lx, size=0x%lx\n", 122 image_name, i, load_addr, (ulong)sect_cnt * 512); 123 124 /* 125 * MMC/NAND controller DMA can't access sram region, so: 126 * data -> ddr buffer -> memcpy to sram region. 127 */ 128 if (load_addr < CONFIG_SYS_SDRAM_BASE || 129 load_addr >= CONFIG_SYS_SDRAM_BASE + SDRAM_MAX_SIZE) { 130 image_buf = memalign(ARCH_DMA_MINALIGN, sect_cnt * 512); 131 if (!image_buf) { 132 printf("%s: malloc failed\n", __func__); 133 return -ENOMEM; 134 } 135 } else { 136 image_buf = (void *)load_addr; 137 } 138 139 ret = info->read(info, image_sector + sect_off, 140 sect_cnt, image_buf); 141 if (ret != sect_cnt) { 142 printf("Read '%s' failed at sector: %ld, ret=%d\n", 143 image_name, (ulong)image_sector + sect_off, ret); 144 return -EIO; 145 } 146 147 /* Verify component */ 148 ret = check_image(hdr); 149 if (ret) { 150 printf("%s[%d]: verify image fail!\n", image_name, i); 151 return ret; 152 } 153 154 /* Handle sram region */ 155 if ((ulong)image_buf != load_addr) { 156 memcpy((void *)load_addr, image_buf, sect_cnt << 9); 157 free(image_buf); 158 } 159 160 /* Fill entry_point by first component */ 161 if (i == 0) 162 *entry_point = (uintptr_t)load_addr; 163 } 164 165 return ret; 166 } 167 168 static int rkfw_load_trust(struct spl_load_info *info, u32 image_sector, 169 struct spl_image_info *spl_image, 170 int *found_rkfw, u32 try_count) 171 { 172 struct tag_tboot_header_2k hdr; 173 u32 sect_addr = image_sector; 174 int blkcnt = 4; /* header sectors, 2KB */ 175 int i, ret = 0; 176 177 /* Find valid image header */ 178 for (i = 0; i < try_count; i++) { 179 sect_addr = image_sector + (i * RKFW_RETRY_SECTOR_SIZE); 180 if (blkcnt != info->read(info, sect_addr, blkcnt, &hdr)) 181 continue; 182 183 if (hdr.tag == TBOOT_HEAD_TAG) { 184 /* Mark it */ 185 *found_rkfw = 1; 186 187 /* bl31 is mandatory */ 188 ret = load_image(info, &hdr, sect_addr, 189 BL31_IMAGE_NAME, &spl_image->entry_point); 190 if (ret) 191 continue; 192 193 /* bl32 is optional */ 194 ret = load_image(info, &hdr, sect_addr, 195 BL32_IMAGE_NAME, &spl_image->entry_point_bl32); 196 if (ret) { 197 if (ret == -ENONET) { 198 spl_image->entry_point_bl32 = -1; /* Not exist */ 199 ret = 0; 200 } else { 201 continue; 202 } 203 } 204 break; 205 } 206 } 207 208 return ret; 209 } 210 #else 211 static int rkfw_load_trust(struct spl_load_info *info, u32 image_sector, 212 struct spl_image_info *spl_image, 213 int *found_rkfw, u32 try_count) 214 { 215 struct tag_second_loader_hdr hdr; 216 int i, ret, blkcnt = 4; /* header sectors, 2KB */ 217 char *load_addr; 218 u32 sect_addr; 219 220 /* Detect valid image header */ 221 for (i = 0; i < try_count; i++) { 222 sect_addr = image_sector + (i * RKFW_RETRY_SECTOR_SIZE); 223 ret = info->read(info, sect_addr, blkcnt, &hdr); 224 if (ret != blkcnt) 225 continue; 226 227 if (!memcmp(hdr.magic, TBOOT_HEAD_TAG, 6)) { 228 *found_rkfw = 1; 229 spl_image->entry_point = (uintptr_t)hdr.loader_load_addr; 230 /* Load full binary image(right behind header) */ 231 sect_addr += blkcnt; 232 load_addr = (char *)((size_t)hdr.loader_load_addr); 233 blkcnt = DIV_ROUND_UP(hdr.loader_load_size, 512); 234 235 printf("tee.bin: addr=0x%lx, size=0x%lx\n", 236 (ulong)load_addr, (ulong)blkcnt * 512); 237 ret = info->read(info, sect_addr, blkcnt, load_addr); 238 if (ret != blkcnt) 239 continue; 240 241 break; 242 } 243 } 244 245 if (i == try_count) { 246 printf("Can not find usable uboot\n"); 247 return -ENONET; 248 } 249 250 return 0; 251 } 252 #endif 253 254 static int rkfw_load_uboot(struct spl_load_info *info, u32 image_sector, 255 struct spl_image_info *spl_image, u32 try_count) 256 { 257 struct tag_second_loader_hdr hdr; 258 int i, ret, blkcnt = 4; /* header sectors, 2KB */ 259 char *load_addr; 260 u32 sect_addr; 261 262 /* Detect valid image header */ 263 for (i = 0; i < try_count; i++) { 264 sect_addr = image_sector + (i * RKFW_RETRY_SECTOR_SIZE); 265 ret = info->read(info, sect_addr, blkcnt, &hdr); 266 if (ret != blkcnt) 267 continue; 268 269 if (!memcmp(hdr.magic, LOADER_HARD_STR, 6)) { 270 /* Load full binary image(right behind header) */ 271 sect_addr += blkcnt; 272 load_addr = (char *)((size_t)hdr.loader_load_addr); 273 blkcnt = DIV_ROUND_UP(hdr.loader_load_size, 512); 274 275 printf("u-boot.bin: addr=0x%lx, size=0x%lx\n", 276 (ulong)load_addr, (ulong)blkcnt * 512); 277 ret = info->read(info, sect_addr, blkcnt, load_addr); 278 if (ret != blkcnt) 279 continue; 280 281 break; 282 } 283 } 284 285 if (i == try_count) { 286 printf("Can not find usable uboot\n"); 287 return -ENONET; 288 } 289 290 /* Fill entry point */ 291 #ifdef CONFIG_SPL_ATF 292 spl_image->entry_point_bl33 = (uintptr_t)hdr.loader_load_addr; 293 #endif 294 #ifdef CONFIG_SPL_OPTEE 295 spl_image->entry_point_os = (uintptr_t)hdr.loader_load_addr; 296 #endif 297 return 0; 298 } 299 300 static int rkfw_load_kernel(struct spl_load_info *info, u32 image_sector, 301 struct spl_image_info *spl_image, u32 try_count) 302 { 303 struct andr_img_hdr *hdr; 304 int ret, cnt; 305 int dtb_sector, ramdisk_sector, resource_sector; 306 307 cnt = ALIGN(sizeof(struct andr_img_hdr), 512) >> 9; 308 hdr = malloc(cnt * 512); 309 if (!hdr) 310 return -ENOMEM; 311 312 ret = info->read(info, image_sector, cnt, (void *)hdr); 313 if (ret != cnt) { 314 ret = -EIO; 315 goto out; 316 } 317 318 if (memcmp(hdr->magic, ANDR_BOOT_MAGIC, strlen(ANDR_BOOT_MAGIC)) != 0) { 319 printf("SPL: boot image head magic error\n"); 320 ret = -EINVAL; 321 goto out; 322 } 323 324 ramdisk_sector = ALIGN(hdr->kernel_size, hdr->page_size); 325 resource_sector = ALIGN(hdr->kernel_size, hdr->page_size) 326 + ALIGN(hdr->ramdisk_size, hdr->page_size); 327 dtb_sector = ALIGN(hdr->kernel_size, hdr->page_size) 328 + ALIGN(hdr->ramdisk_size, hdr->page_size) 329 + ALIGN(hdr->second_size, hdr->page_size); 330 image_sector = image_sector + cnt; 331 cnt = ALIGN(hdr->kernel_size, hdr->page_size) >> 9; 332 333 /* Load kernel image */ 334 #ifdef CONFIG_SPL_ROCKCHIP_HW_DECOMPRESS 335 ret = info->read(info, image_sector, cnt, 336 (void *)CONFIG_SPL_KERNEL_COMPRESS_ADDR); 337 #else 338 ret = info->read(info, image_sector, cnt, (void *)CONFIG_SPL_KERNEL_ADDR); 339 #endif 340 if (ret != cnt) { 341 ret = -EIO; 342 goto out; 343 } 344 #ifdef CONFIG_SPL_ROCKCHIP_HW_DECOMPRESS 345 struct udevice *dev; 346 u32 cap = DECOM_GZIP; 347 348 dev = misc_decompress_get_device(cap); 349 350 if (!dev) 351 goto out; 352 353 ret = misc_decompress_start(dev, CONFIG_SPL_KERNEL_COMPRESS_ADDR, 354 CONFIG_SPL_KERNEL_ADDR, hdr->kernel_size); 355 if (ret) 356 goto out; 357 358 #endif 359 360 /* Load ramdisk image */ 361 if (hdr->ramdisk_size) { 362 #ifdef CONFIG_SPL_ROCKCHIP_HW_DECOMPRESS 363 ret = info->read(info, (ramdisk_sector >> 9) + image_sector, 364 ALIGN(hdr->ramdisk_size, hdr->page_size) >> 9, 365 (void *)CONFIG_SPL_RAMDISK_COMPRESS_ADDR); 366 #else 367 ret = info->read(info, (ramdisk_sector >> 9) + image_sector, 368 ALIGN(hdr->ramdisk_size, hdr->page_size) >> 9, 369 (void *)CONFIG_SPL_RAMDISK_ADDR); 370 #endif 371 if (ret != (ALIGN(hdr->ramdisk_size, hdr->page_size) >> 9)) { 372 ret = -EIO; 373 goto out; 374 } 375 #ifdef CONFIG_SPL_ROCKCHIP_HW_DECOMPRESS 376 int timeout = 10000; 377 378 while (misc_decompress_is_complete(dev)) { 379 if (timeout < 0) { 380 ret = -EIO; 381 goto out; 382 } 383 384 timeout--; 385 udelay(10); 386 } 387 388 ret = misc_decompress_stop(dev); 389 if (ret) 390 goto out; 391 392 ret = misc_decompress_start(dev, 393 CONFIG_SPL_RAMDISK_COMPRESS_ADDR, 394 CONFIG_SPL_RAMDISK_ADDR, 395 hdr->kernel_size); 396 if (ret) 397 goto out; 398 #endif 399 } 400 401 /* Load resource, and checkout the dtb */ 402 if (hdr->second_size) { 403 struct resource_img_hdr *head = 404 (struct resource_img_hdr *)(CONFIG_SPL_FDT_ADDR + 0x100000); 405 406 ret = info->read(info, (resource_sector >> 9) + image_sector, 407 ALIGN(hdr->second_size, hdr->page_size) >> 9, 408 (void *)head); 409 if (ret != (ALIGN(hdr->second_size, hdr->page_size) >> 9)) { 410 ret = -EIO; 411 goto out; 412 } 413 #ifdef CONFIG_SPL_KERNEL_BOOT 414 if (spl_resource_image_check_header(head)) { 415 printf("Can't find kernel dtb in spl."); 416 } else { 417 struct resource_entry *entry; 418 char *dtb_temp; 419 420 entry = spl_resource_image_get_dtb_entry(head); 421 if (!entry) { 422 ret = -EIO; 423 goto out; 424 } 425 426 dtb_temp = (char *)((char *)head + entry->f_offset * 512); 427 memcpy((char *)CONFIG_SPL_FDT_ADDR, dtb_temp, 428 entry->f_size); 429 } 430 #endif 431 } else { 432 /* Load dtb image */ 433 ret = info->read(info, (dtb_sector >> 9) + image_sector, 434 ALIGN(hdr->dtb_size, hdr->page_size) >> 9, 435 (void *)CONFIG_SPL_FDT_ADDR); 436 if (ret != (ALIGN(hdr->dtb_size, hdr->page_size) >> 9)) { 437 ret = -EIO; 438 goto out; 439 } 440 } 441 442 spl_image->fdt_addr = (void *)CONFIG_SPL_FDT_ADDR; 443 #ifdef CONFIG_SPL_OPTEE 444 spl_image->entry_point_os = (uintptr_t)CONFIG_SPL_KERNEL_ADDR; 445 #endif 446 #ifdef CONFIG_SPL_ATF 447 spl_image->entry_point_bl33 = CONFIG_SPL_KERNEL_ADDR; 448 #endif 449 ret = 0; 450 out: 451 free(hdr); 452 453 return ret; 454 } 455 456 int spl_load_rkfw_image(struct spl_image_info *spl_image, 457 struct spl_load_info *info, 458 u32 trust_sector, u32 uboot_sector, 459 u32 boot_sector) 460 { 461 int ret, try_count = RKFW_RETRY_SECTOR_TIMES; 462 int found_rkfw = 0; 463 464 ret = rkfw_load_trust(info, trust_sector, spl_image, 465 &found_rkfw, try_count); 466 if (ret) { 467 printf("Load trust image failed! ret=%d\n", ret); 468 goto out; 469 } 470 471 #ifdef CONFIG_SPL_KERNEL_BOOT 472 if (spl_image->next_stage == SPL_NEXT_STAGE_UBOOT) { 473 #endif 474 ret = rkfw_load_uboot(info, uboot_sector, spl_image, try_count); 475 if (ret) 476 printf("Load uboot image failed! ret=%d\n", ret); 477 else 478 goto boot; 479 #ifdef CONFIG_SPL_KERNEL_BOOT 480 } else if (spl_image->next_stage == SPL_NEXT_STAGE_KERNEL) { 481 #endif 482 ret = rkfw_load_kernel(info, boot_sector, spl_image, try_count); 483 if (ret) { 484 printf("Load kernel image failed! ret=%d\n", ret); 485 goto out; 486 } 487 #ifdef CONFIG_SPL_KERNEL_BOOT 488 } 489 #endif 490 491 boot: 492 #if CONFIG_IS_ENABLED(LOAD_FIT) 493 spl_image->fdt_addr = 0; 494 #endif 495 #ifdef CONFIG_SPL_ATF 496 spl_image->os = IH_OS_ARM_TRUSTED_FIRMWARE; 497 #else 498 spl_image->os = IH_OS_OP_TEE; 499 #endif 500 501 out: 502 /* If not found rockchip firmware, try others outside */ 503 return found_rkfw ? ret : -EAGAIN; 504 } 505