1 /* 2 * Copyright (c) 2011 Sebastian Andrzej Siewior <bigeasy@linutronix.de> 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <image.h> 9 #include <android_image.h> 10 #include <android_bootloader.h> 11 #include <malloc.h> 12 #include <mapmem.h> 13 #include <errno.h> 14 #include <boot_rkimg.h> 15 #include <crypto.h> 16 #include <sysmem.h> 17 #include <u-boot/sha1.h> 18 #ifdef CONFIG_RKIMG_BOOTLOADER 19 #include <asm/arch/resource_img.h> 20 #endif 21 #ifdef CONFIG_RK_AVB_LIBAVB_USER 22 #include <android_avb/avb_slot_verify.h> 23 #include <android_avb/avb_ops_user.h> 24 #include <android_avb/rk_avb_ops_user.h> 25 #endif 26 #include <optee_include/OpteeClientInterface.h> 27 28 DECLARE_GLOBAL_DATA_PTR; 29 30 #define ANDROID_IMAGE_DEFAULT_KERNEL_ADDR 0x10008000 31 #define ANDROID_ARG_FDT_FILENAME "rk-kernel.dtb" 32 #define ANDROID_Q_VER 10 33 34 /* Defined by rockchip legacy mkboot tool(SDK version < 8.1) */ 35 #define ANDROID_ROCKCHIP_LEGACY_PAGE_SIZE 0x4000 36 37 static char andr_tmp_str[ANDR_BOOT_ARGS_SIZE + 1]; 38 static u32 android_kernel_comp_type = IH_COMP_NONE; 39 40 u32 android_image_major_version(void) 41 { 42 /* MSB 7-bits */ 43 return gd->bd->bi_andr_version >> 25; 44 } 45 46 u32 android_bcb_msg_sector_offset(void) 47 { 48 /* 49 * Rockchip platforms defines BCB message at the 16KB offset of 50 * misc partition while the Google defines it at 0x0 offset. 51 * 52 * From Android-Q, the 0x0 offset is mandary on Google VTS, so that 53 * this is a compatibility according to android image 'os_version'. 54 */ 55 #ifdef CONFIG_RKIMG_BOOTLOADER 56 return (android_image_major_version() >= ANDROID_Q_VER) ? 0x0 : 0x20; 57 #else 58 return 0x0; 59 #endif 60 } 61 62 static ulong android_image_get_kernel_addr(const struct andr_img_hdr *hdr) 63 { 64 /* 65 * All the Android tools that generate a boot.img use this 66 * address as the default. 67 * 68 * Even though it doesn't really make a lot of sense, and it 69 * might be valid on some platforms, we treat that address as 70 * the default value for this field, and try to execute the 71 * kernel in place in such a case. 72 * 73 * Otherwise, we will return the actual value set by the user. 74 */ 75 if (hdr->kernel_addr == ANDROID_IMAGE_DEFAULT_KERNEL_ADDR) 76 return (ulong)hdr + hdr->page_size; 77 78 #ifdef CONFIG_ARCH_ROCKCHIP 79 /* 80 * If kernel is compressed, kernel_addr is set as decompressed address 81 * after compressed being loaded to ram, so let's use it. 82 */ 83 if (android_kernel_comp_type != IH_COMP_NONE && 84 android_kernel_comp_type != IH_COMP_ZIMAGE) 85 return hdr->kernel_addr; 86 87 /* 88 * Compatble with rockchip legacy packing with kernel/ramdisk/second 89 * address base from 0x60000000(SDK versiont < 8.1), these are invalid 90 * address, so we calc it by real size. 91 */ 92 return (ulong)hdr + hdr->page_size; 93 #else 94 return hdr->kernel_addr; 95 #endif 96 97 } 98 99 void android_image_set_comp(struct andr_img_hdr *hdr, u32 comp) 100 { 101 android_kernel_comp_type = comp; 102 } 103 104 u32 android_image_get_comp(const struct andr_img_hdr *hdr) 105 { 106 return android_kernel_comp_type; 107 } 108 109 int android_image_parse_kernel_comp(const struct andr_img_hdr *hdr) 110 { 111 ulong kaddr = android_image_get_kernel_addr(hdr); 112 return bootm_parse_comp((const unsigned char *)kaddr); 113 } 114 115 /** 116 * android_image_get_kernel() - processes kernel part of Android boot images 117 * @hdr: Pointer to image header, which is at the start 118 * of the image. 119 * @verify: Checksum verification flag. Currently unimplemented. 120 * @os_data: Pointer to a ulong variable, will hold os data start 121 * address. 122 * @os_len: Pointer to a ulong variable, will hold os data length. 123 * 124 * This function returns the os image's start address and length. Also, 125 * it appends the kernel command line to the bootargs env variable. 126 * 127 * Return: Zero, os start address and length on success, 128 * otherwise on failure. 129 */ 130 int android_image_get_kernel(const struct andr_img_hdr *hdr, int verify, 131 ulong *os_data, ulong *os_len) 132 { 133 u32 kernel_addr = android_image_get_kernel_addr(hdr); 134 135 /* 136 * Not all Android tools use the id field for signing the image with 137 * sha1 (or anything) so we don't check it. It is not obvious that the 138 * string is null terminated so we take care of this. 139 */ 140 strncpy(andr_tmp_str, hdr->name, ANDR_BOOT_NAME_SIZE); 141 andr_tmp_str[ANDR_BOOT_NAME_SIZE] = '\0'; 142 if (strlen(andr_tmp_str)) 143 printf("Android's image name: %s\n", andr_tmp_str); 144 145 printf("Kernel load addr 0x%08x size %u KiB\n", 146 kernel_addr, DIV_ROUND_UP(hdr->kernel_size, 1024)); 147 148 int len = 0; 149 if (*hdr->cmdline) { 150 debug("Kernel command line: %s\n", hdr->cmdline); 151 len += strlen(hdr->cmdline); 152 } 153 154 char *bootargs = env_get("bootargs"); 155 if (bootargs) 156 len += strlen(bootargs); 157 158 char *newbootargs = malloc(len + 2); 159 if (!newbootargs) { 160 puts("Error: malloc in android_image_get_kernel failed!\n"); 161 return -ENOMEM; 162 } 163 *newbootargs = '\0'; 164 165 if (bootargs) { 166 strcpy(newbootargs, bootargs); 167 strcat(newbootargs, " "); 168 } 169 if (*hdr->cmdline) 170 strcat(newbootargs, hdr->cmdline); 171 172 env_set("bootargs", newbootargs); 173 174 if (os_data) { 175 *os_data = (ulong)hdr; 176 *os_data += hdr->page_size; 177 } 178 if (os_len) 179 *os_len = hdr->kernel_size; 180 return 0; 181 } 182 183 int android_image_check_header(const struct andr_img_hdr *hdr) 184 { 185 return memcmp(ANDR_BOOT_MAGIC, hdr->magic, ANDR_BOOT_MAGIC_SIZE); 186 } 187 188 ulong android_image_get_end(const struct andr_img_hdr *hdr) 189 { 190 ulong end; 191 /* 192 * The header takes a full page, the remaining components are aligned 193 * on page boundary 194 */ 195 end = (ulong)hdr; 196 end += hdr->page_size; 197 end += ALIGN(hdr->kernel_size, hdr->page_size); 198 end += ALIGN(hdr->ramdisk_size, hdr->page_size); 199 end += ALIGN(hdr->second_size, hdr->page_size); 200 201 if (hdr->header_version >= 1) 202 end += ALIGN(hdr->recovery_dtbo_size, hdr->page_size); 203 204 return end; 205 } 206 207 u32 android_image_get_ksize(const struct andr_img_hdr *hdr) 208 { 209 return hdr->kernel_size; 210 } 211 212 void android_image_set_kload(struct andr_img_hdr *hdr, u32 load_address) 213 { 214 hdr->kernel_addr = load_address; 215 } 216 217 ulong android_image_get_kload(const struct andr_img_hdr *hdr) 218 { 219 return android_image_get_kernel_addr(hdr); 220 } 221 222 int android_image_get_ramdisk(const struct andr_img_hdr *hdr, 223 ulong *rd_data, ulong *rd_len) 224 { 225 ulong ramdisk_addr_r; 226 227 if (!hdr->ramdisk_size) { 228 *rd_data = *rd_len = 0; 229 return -1; 230 } 231 232 /* Have been loaded by android_image_load_separate() on ramdisk_addr_r */ 233 ramdisk_addr_r = env_get_ulong("ramdisk_addr_r", 16, 0); 234 if (!ramdisk_addr_r) { 235 printf("No Found Ramdisk Load Address.\n"); 236 return -1; 237 } 238 239 *rd_data = ramdisk_addr_r; 240 *rd_len = hdr->ramdisk_size; 241 242 printf("RAM disk load addr 0x%08lx size %u KiB\n", 243 *rd_data, DIV_ROUND_UP(hdr->ramdisk_size, 1024)); 244 245 return 0; 246 } 247 248 int android_image_get_fdt(const struct andr_img_hdr *hdr, 249 ulong *rd_data) 250 { 251 ulong fdt_addr_r; 252 253 if (!hdr->second_size) { 254 *rd_data = 0; 255 return -1; 256 } 257 258 /* Have been loaded by android_image_load_separate() on fdt_addr_r */ 259 fdt_addr_r = env_get_ulong("fdt_addr_r", 16, 0); 260 if (!fdt_addr_r) { 261 printf("No Found FDT Load Address.\n"); 262 return -1; 263 } 264 265 *rd_data = fdt_addr_r; 266 267 debug("FDT load addr 0x%08x size %u KiB\n", 268 hdr->second_addr, DIV_ROUND_UP(hdr->second_size, 1024)); 269 270 return 0; 271 } 272 273 #if defined(CONFIG_DM_CRYPTO) && defined(CONFIG_ANDROID_BOOT_IMAGE_HASH) 274 static void print_hash(const char *label, u8 *hash, int len) 275 { 276 int i; 277 278 printf("%s:\n 0x", label ? : "Hash"); 279 for (i = 0; i < len; i++) 280 printf("%02x", hash[i]); 281 printf("\n"); 282 } 283 #endif 284 285 typedef enum { 286 IMG_KERNEL, 287 IMG_RAMDISK, 288 IMG_SECOND, 289 IMG_RECOVERY_DTBO, 290 IMG_RK_DTB, /* within resource.img in second position */ 291 IMG_DTB, 292 IMG_MAX, 293 } img_t; 294 295 static int image_read(img_t img, struct andr_img_hdr *hdr, 296 ulong blkstart, void *ram_base, 297 struct udevice *crypto) 298 { 299 struct blk_desc *desc = rockchip_get_bootdev(); 300 __maybe_unused u32 sizesz; 301 ulong pgsz = hdr->page_size; 302 ulong blksz = desc->blksz; 303 ulong blkcnt, blkoff; 304 ulong offset = 0; 305 ulong datasz; 306 void *ramdst; 307 int ret = 0; 308 309 switch (img) { 310 case IMG_KERNEL: 311 offset = 0; /* include a page_size(image header) */ 312 blkcnt = DIV_ROUND_UP(hdr->kernel_size + pgsz, blksz); 313 ramdst = (void *)env_get_ulong("android_addr_r", 16, 0); 314 datasz = hdr->kernel_size + pgsz; 315 sizesz = sizeof(hdr->kernel_size); 316 if (!sysmem_alloc_base(MEMBLK_ID_KERNEL, 317 (phys_addr_t)ramdst, blkcnt * blksz)) 318 return -ENOMEM; 319 break; 320 case IMG_RAMDISK: 321 offset = pgsz + ALIGN(hdr->kernel_size, pgsz); 322 blkcnt = DIV_ROUND_UP(hdr->ramdisk_size, blksz); 323 ramdst = (void *)env_get_ulong("ramdisk_addr_r", 16, 0); 324 datasz = hdr->ramdisk_size; 325 sizesz = sizeof(hdr->ramdisk_size); 326 if (datasz && !sysmem_alloc_base(MEMBLK_ID_RAMDISK, 327 (phys_addr_t)ramdst, blkcnt * blksz)) 328 return -ENOMEM; 329 break; 330 case IMG_SECOND: 331 offset = pgsz + 332 ALIGN(hdr->kernel_size, pgsz) + 333 ALIGN(hdr->ramdisk_size, pgsz); 334 blkcnt = DIV_ROUND_UP(hdr->second_size, blksz); 335 datasz = hdr->second_size; 336 sizesz = sizeof(hdr->second_size); 337 ramdst = malloc(blkcnt * blksz); 338 break; 339 case IMG_RECOVERY_DTBO: 340 offset = pgsz + 341 ALIGN(hdr->kernel_size, pgsz) + 342 ALIGN(hdr->ramdisk_size, pgsz) + 343 ALIGN(hdr->second_size, pgsz); 344 blkcnt = DIV_ROUND_UP(hdr->recovery_dtbo_size, blksz); 345 datasz = hdr->recovery_dtbo_size; 346 sizesz = sizeof(hdr->recovery_dtbo_size); 347 ramdst = malloc(blkcnt * blksz); 348 break; 349 case IMG_DTB: 350 offset = pgsz + 351 ALIGN(hdr->kernel_size, pgsz) + 352 ALIGN(hdr->ramdisk_size, pgsz) + 353 ALIGN(hdr->second_size, pgsz) + 354 ALIGN(hdr->recovery_dtbo_size, pgsz); 355 blkcnt = DIV_ROUND_UP(hdr->dtb_size, blksz); 356 datasz = hdr->dtb_size; 357 sizesz = sizeof(hdr->dtb_size); 358 ramdst = malloc(blkcnt * blksz); 359 break; 360 case IMG_RK_DTB: 361 #ifdef CONFIG_RKIMG_BOOTLOADER 362 /* No going further, it handles DTBO, HW-ID, etc */ 363 ramdst = (void *)env_get_ulong("fdt_addr_r", 16, 0); 364 if (gd->fdt_blob != (void *)ramdst) 365 ret = rockchip_read_dtb_file(ramdst); 366 #endif 367 return ret < 0 ? ret : 0; 368 default: 369 return -EINVAL; 370 } 371 372 if (!ramdst) { 373 printf("No memory for image(%d)\n", img); 374 return -ENOMEM; 375 } 376 377 if (!blksz || !datasz) 378 goto crypto_calc; 379 380 /* load */ 381 if (ram_base) { 382 memcpy(ramdst, (char *)((ulong)ram_base + offset), datasz); 383 } else { 384 blkoff = DIV_ROUND_UP(offset, blksz); 385 ret = blk_dread(desc, blkstart + blkoff, blkcnt, ramdst); 386 if (ret != blkcnt) { 387 printf("Failed to read img(%d), ret=%d\n", img, ret); 388 return -EIO; 389 } 390 } 391 392 crypto_calc: 393 /* sha1 */ 394 #ifdef CONFIG_DM_CRYPTO 395 if (crypto) { 396 if (img == IMG_KERNEL) { 397 ramdst += pgsz; 398 datasz -= pgsz; 399 } 400 401 crypto_sha_update(crypto, (u32 *)ramdst, datasz); 402 crypto_sha_update(crypto, (u32 *)&datasz, sizesz); 403 } 404 #endif 405 406 return 0; 407 } 408 409 static int android_image_separate(struct andr_img_hdr *hdr, 410 const disk_partition_t *part, 411 void *load_address, 412 void *ram_base) 413 { 414 char *initrd_high; 415 char *fdt_high; 416 ulong bstart; 417 418 if (android_image_check_header(hdr)) { 419 printf("Bad android image header\n"); 420 return -EINVAL; 421 } 422 423 /* set for image_read(IMG_KERNEL, ...) */ 424 env_set_hex("android_addr_r", (ulong)load_address); 425 bstart = part ? part->start : 0; 426 427 /* 428 * 1. Load images to their individual target ram position 429 * in order to disable fdt/ramdisk relocation. 430 */ 431 #if defined(CONFIG_DM_CRYPTO) && defined(CONFIG_ANDROID_BOOT_IMAGE_HASH) 432 struct udevice *dev; 433 sha_context ctx; 434 uchar hash[20]; 435 436 ctx.length = 0; 437 ctx.algo = CRYPTO_SHA1; 438 dev = crypto_get_device(ctx.algo); 439 if (!dev) { 440 printf("Can't find crypto device for SHA1 capability\n"); 441 return -ENODEV; 442 } 443 444 #ifdef CONFIG_ROCKCHIP_CRYPTO_V1 445 /* v1: requires total length before sha init */ 446 ctx.length += hdr->kernel_size + sizeof(hdr->kernel_size) + 447 hdr->ramdisk_size + sizeof(hdr->ramdisk_size) + 448 hdr->second_size + sizeof(hdr->second_size); 449 if (hdr->header_version > 0) 450 ctx.length += hdr->recovery_dtbo_size + 451 sizeof(hdr->recovery_dtbo_size); 452 if (hdr->header_version > 1) 453 ctx.length += hdr->dtb_size + sizeof(hdr->dtb_size); 454 #endif 455 crypto_sha_init(dev, &ctx); 456 457 /* load, never change order ! */ 458 if (image_read(IMG_RK_DTB, hdr, bstart, ram_base, NULL)) 459 return -1; 460 if (image_read(IMG_KERNEL, hdr, bstart, ram_base, dev)) 461 return -1; 462 if (image_read(IMG_RAMDISK, hdr, bstart, ram_base, dev)) 463 return -1; 464 if (image_read(IMG_SECOND, hdr, bstart, ram_base, dev)) 465 return -1; 466 if (hdr->header_version > 0) { 467 if (image_read(IMG_RECOVERY_DTBO, hdr, bstart, ram_base, dev)) 468 return -1; 469 } 470 if (hdr->header_version > 1) { 471 if (image_read(IMG_DTB, hdr, bstart, ram_base, dev)) 472 return -1; 473 } 474 475 crypto_sha_final(dev, &ctx, hash); 476 if (memcmp(hash, hdr->id, 20)) { 477 print_hash("Hash from header", (u8 *)hdr->id, 20); 478 print_hash("Hash real", (u8 *)hash, 20); 479 return -EBADFD; 480 } else { 481 printf("Image hash OK\n"); 482 } 483 484 #else /* !(CONFIG_DM_CRYPTO && CONFIG_ANDROID_BOOT_IMAGE_HASH) */ 485 if (image_read(IMG_RK_DTB, hdr, bstart, ram_base, NULL)) 486 return -1; 487 if (image_read(IMG_KERNEL, hdr, bstart, ram_base, NULL)) 488 return -1; 489 if (image_read(IMG_RAMDISK, hdr, bstart, ram_base, NULL)) 490 return -1; 491 if (image_read(IMG_SECOND, hdr, bstart, ram_base, NULL)) 492 return -1; 493 if (hdr->header_version > 0) { 494 if (image_read(IMG_RECOVERY_DTBO, hdr, bstart, ram_base, NULL)) 495 return -1; 496 } 497 if (hdr->header_version > 1) { 498 if (image_read(IMG_DTB, hdr, bstart, ram_base, NULL)) 499 return -1; 500 } 501 #endif 502 503 /* 504 * 2. Disable fdt/ramdisk relocation, it saves boot time. 505 */ 506 initrd_high = env_get("initrd_high"); 507 fdt_high = env_get("fdt_high"); 508 509 if (!fdt_high) { 510 env_set_hex("fdt_high", -1UL); 511 printf("Fdt "); 512 } 513 if (!initrd_high) { 514 env_set_hex("initrd_high", -1UL); 515 printf("Ramdisk "); 516 } 517 if (!fdt_high || !initrd_high) 518 printf("skip relocation\n"); 519 520 return 0; 521 } 522 523 /* 524 * 'boot_android' cmd use "kernel_addr_r" as default load address ! 525 * We update it according to compress type and "kernel_addr_c/r". 526 */ 527 int android_image_parse_comp(struct andr_img_hdr *hdr, ulong *load_addr) 528 { 529 ulong kernel_addr_c; 530 int comp; 531 532 kernel_addr_c = env_get_ulong("kernel_addr_c", 16, 0); 533 comp = android_image_parse_kernel_comp(hdr); 534 535 #ifdef CONFIG_ARM64 536 /* 537 * On 64-bit kernel, assuming use IMAGE by default. 538 * 539 * kernel_addr_c is for LZ4-IMAGE but maybe not defined. 540 * kernel_addr_r is for IMAGE. 541 */ 542 if (comp != IH_COMP_NONE) { 543 ulong comp_addr; 544 545 if (kernel_addr_c) { 546 comp_addr = kernel_addr_c; 547 } else { 548 printf("Warn: No \"kernel_addr_c\"\n"); 549 comp_addr = CONFIG_SYS_SDRAM_BASE + 0x2000000;/* 32M */ 550 env_set_ulong("kernel_addr_c", comp_addr); 551 } 552 553 *load_addr = comp_addr - hdr->page_size; 554 } 555 #else 556 /* 557 * On 32-bit kernel, assuming use zImage by default. 558 * 559 * kernel_addr_c is for LZ4/zImage but maybe not defined. 560 * kernel_addr_r is for zImage when kernel_addr_c is not defined. 561 * kernel_addr_r is for IMAGE when kernel_addr_c is defined. 562 */ 563 if (comp == IH_COMP_NONE) { 564 if (kernel_addr_c) 565 *load_addr = env_get_ulong("kernel_addr_r", 16, 0); 566 else 567 *load_addr = CONFIG_SYS_SDRAM_BASE + 0x8000; 568 } else { 569 if (kernel_addr_c) 570 *load_addr = kernel_addr_c - hdr->page_size; 571 } 572 #endif 573 574 env_set_ulong("os_comp", comp); 575 return comp; 576 } 577 578 void android_image_set_decomp(struct andr_img_hdr *hdr, int comp) 579 { 580 ulong kernel_addr_r; 581 582 /* zImage handles decompress itself */ 583 if (comp != IH_COMP_NONE && comp != IH_COMP_ZIMAGE) { 584 kernel_addr_r = env_get_ulong("kernel_addr_r", 16, 0x02080000); 585 android_image_set_kload(hdr, kernel_addr_r); 586 android_image_set_comp(hdr, comp); 587 } else { 588 android_image_set_comp(hdr, IH_COMP_NONE); 589 } 590 } 591 592 static int android_image_load_separate(struct andr_img_hdr *hdr, 593 const disk_partition_t *part, 594 void *load_addr) 595 { 596 return android_image_separate(hdr, part, load_addr, NULL); 597 } 598 599 int android_image_memcpy_separate(struct andr_img_hdr *hdr, ulong *load_addr) 600 { 601 ulong comp_addr = *load_addr; 602 int comp; 603 604 comp = android_image_parse_comp(hdr, &comp_addr); 605 if (comp_addr == (ulong)hdr) 606 return 0; 607 608 if (android_image_separate(hdr, NULL, (void *)comp_addr, hdr)) 609 return -1; 610 611 *load_addr = comp_addr; 612 android_image_set_decomp((void *)comp_addr, comp); 613 614 return 0; 615 } 616 617 long android_image_load(struct blk_desc *dev_desc, 618 const disk_partition_t *part_info, 619 unsigned long load_address, 620 unsigned long max_size) { 621 struct andr_img_hdr *hdr; 622 u32 blksz = dev_desc->blksz; 623 u32 pszcnt, hdrcnt, kercnt; 624 int comp, ret; 625 626 if (max_size < part_info->blksz) 627 return -1; 628 629 /* 630 * read Android image header and leave enough space for page_size align 631 * and kernel image header(1 block maybe enough). 632 * 633 * ANDROID_ROCKCHIP_LEGACY_PAGE_SIZE is defined by rockchip legacy 634 * mkboot tool(SDK version < 8.1) and larger than Google defined. 635 * 636 * To compatible this, we malloc enough buffer but only read android 637 * header and kernel image(1 block) from storage(ignore page size). 638 */ 639 kercnt = 1; 640 hdrcnt = DIV_ROUND_UP(sizeof(*hdr), blksz); 641 pszcnt = DIV_ROUND_UP(ANDROID_ROCKCHIP_LEGACY_PAGE_SIZE, blksz); 642 643 hdr = memalign(ARCH_DMA_MINALIGN, (hdrcnt + pszcnt + kercnt) * blksz); 644 if (!hdr) { 645 printf("No memory\n"); 646 return -1; 647 } 648 649 if (blk_dread(dev_desc, part_info->start, hdrcnt, hdr) != hdrcnt) { 650 printf("Failed to read image header\n"); 651 goto fail; 652 } 653 654 if (android_image_check_header(hdr) != 0) { 655 printf("** Invalid Android Image header **\n"); 656 goto fail; 657 } 658 659 /* 660 * Update and skip pszcnt(hdr is included) according to hdr->page_size, 661 * reading kernel image for compress validation. 662 */ 663 pszcnt = DIV_ROUND_UP(hdr->page_size, blksz); 664 if (blk_dread(dev_desc, part_info->start + pszcnt, kercnt, 665 (void *)((ulong)hdr + hdr->page_size)) != kercnt) { 666 printf("Failed to read kernel header\n"); 667 goto fail; 668 } 669 670 load_address -= hdr->page_size; 671 672 /* Let's load kernel now ! */ 673 comp = android_image_parse_comp(hdr, &load_address); 674 ret = android_image_load_separate(hdr, part_info, (void *)load_address); 675 if (ret) { 676 printf("Failed to load android image\n"); 677 goto fail; 678 } 679 android_image_set_decomp((void *)load_address, comp); 680 681 debug("Loading Android Image to 0x%08lx\n", load_address); 682 683 free(hdr); 684 return load_address; 685 686 fail: 687 free(hdr); 688 return -1; 689 } 690 691 #if !defined(CONFIG_SPL_BUILD) 692 /** 693 * android_print_contents - prints out the contents of the Android format image 694 * @hdr: pointer to the Android format image header 695 * 696 * android_print_contents() formats a multi line Android image contents 697 * description. 698 * The routine prints out Android image properties 699 * 700 * returns: 701 * no returned results 702 */ 703 void android_print_contents(const struct andr_img_hdr *hdr) 704 { 705 const char * const p = IMAGE_INDENT_STRING; 706 /* os_version = ver << 11 | lvl */ 707 u32 os_ver = hdr->os_version >> 11; 708 u32 os_lvl = hdr->os_version & ((1U << 11) - 1); 709 u32 header_version = hdr->header_version; 710 711 printf("%skernel size: %x\n", p, hdr->kernel_size); 712 printf("%skernel address: %x\n", p, hdr->kernel_addr); 713 printf("%sramdisk size: %x\n", p, hdr->ramdisk_size); 714 printf("%sramdisk addrress: %x\n", p, hdr->ramdisk_addr); 715 printf("%ssecond size: %x\n", p, hdr->second_size); 716 printf("%ssecond address: %x\n", p, hdr->second_addr); 717 printf("%stags address: %x\n", p, hdr->tags_addr); 718 printf("%spage size: %x\n", p, hdr->page_size); 719 printf("%sheader_version: %x\n", p, header_version); 720 /* ver = A << 14 | B << 7 | C (7 bits for each of A, B, C) 721 * lvl = ((Y - 2000) & 127) << 4 | M (7 bits for Y, 4 bits for M) */ 722 printf("%sos_version: %x (ver: %u.%u.%u, level: %u.%u)\n", 723 p, hdr->os_version, 724 (os_ver >> 7) & 0x7F, (os_ver >> 14) & 0x7F, os_ver & 0x7F, 725 (os_lvl >> 4) + 2000, os_lvl & 0x0F); 726 printf("%sname: %s\n", p, hdr->name); 727 printf("%scmdline: %s\n", p, hdr->cmdline); 728 729 if (header_version >= 1) { 730 printf("%srecovery dtbo size: %x\n", p, hdr->recovery_dtbo_size); 731 printf("%srecovery dtbo offset: %llx\n", p, hdr->recovery_dtbo_offset); 732 printf("%sheader size: %x\n", p, hdr->header_size); 733 } 734 735 if (header_version >= 2) { 736 printf("%sdtb size: %x\n", p, hdr->dtb_size); 737 printf("%sdtb addr: %llx\n", p, hdr->dtb_addr); 738 } 739 } 740 #endif 741