1 /* 2 * (C) Copyright 2000-2009 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef USE_HOSTCC 9 #include <common.h> 10 #include <bootstage.h> 11 #include <bzlib.h> 12 #include <fdt_support.h> 13 #include <lmb.h> 14 #include <malloc.h> 15 #include <asm/io.h> 16 #include <linux/lzo.h> 17 #include <lzma/LzmaTypes.h> 18 #include <lzma/LzmaDec.h> 19 #include <lzma/LzmaTools.h> 20 #if defined(CONFIG_CMD_USB) 21 #include <usb.h> 22 #endif 23 #else 24 #include "mkimage.h" 25 #endif 26 27 #include <command.h> 28 #include <bootm.h> 29 #include <image.h> 30 31 #ifndef CONFIG_SYS_BOOTM_LEN 32 /* use 8MByte as default max gunzip size */ 33 #define CONFIG_SYS_BOOTM_LEN 0x800000 34 #endif 35 36 #define IH_INITRD_ARCH IH_ARCH_DEFAULT 37 38 #ifndef USE_HOSTCC 39 40 DECLARE_GLOBAL_DATA_PTR; 41 42 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, 43 char * const argv[], bootm_headers_t *images, 44 ulong *os_data, ulong *os_len); 45 46 #ifdef CONFIG_LMB 47 static void boot_start_lmb(bootm_headers_t *images) 48 { 49 ulong mem_start; 50 phys_size_t mem_size; 51 52 lmb_init(&images->lmb); 53 54 mem_start = getenv_bootm_low(); 55 mem_size = getenv_bootm_size(); 56 57 lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size); 58 59 arch_lmb_reserve(&images->lmb); 60 board_lmb_reserve(&images->lmb); 61 } 62 #else 63 #define lmb_reserve(lmb, base, size) 64 static inline void boot_start_lmb(bootm_headers_t *images) { } 65 #endif 66 67 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, 68 char * const argv[]) 69 { 70 memset((void *)&images, 0, sizeof(images)); 71 images.verify = getenv_yesno("verify"); 72 73 boot_start_lmb(&images); 74 75 bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start"); 76 images.state = BOOTM_STATE_START; 77 78 return 0; 79 } 80 81 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc, 82 char * const argv[]) 83 { 84 const void *os_hdr; 85 bool ep_found = false; 86 87 /* get kernel image header, start address and length */ 88 os_hdr = boot_get_kernel(cmdtp, flag, argc, argv, 89 &images, &images.os.image_start, &images.os.image_len); 90 if (images.os.image_len == 0) { 91 puts("ERROR: can't get kernel image!\n"); 92 return 1; 93 } 94 95 /* get image parameters */ 96 switch (genimg_get_format(os_hdr)) { 97 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 98 case IMAGE_FORMAT_LEGACY: 99 images.os.type = image_get_type(os_hdr); 100 images.os.comp = image_get_comp(os_hdr); 101 images.os.os = image_get_os(os_hdr); 102 103 images.os.end = image_get_image_end(os_hdr); 104 images.os.load = image_get_load(os_hdr); 105 break; 106 #endif 107 #if defined(CONFIG_FIT) 108 case IMAGE_FORMAT_FIT: 109 if (fit_image_get_type(images.fit_hdr_os, 110 images.fit_noffset_os, 111 &images.os.type)) { 112 puts("Can't get image type!\n"); 113 bootstage_error(BOOTSTAGE_ID_FIT_TYPE); 114 return 1; 115 } 116 117 if (fit_image_get_comp(images.fit_hdr_os, 118 images.fit_noffset_os, 119 &images.os.comp)) { 120 puts("Can't get image compression!\n"); 121 bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION); 122 return 1; 123 } 124 125 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os, 126 &images.os.os)) { 127 puts("Can't get image OS!\n"); 128 bootstage_error(BOOTSTAGE_ID_FIT_OS); 129 return 1; 130 } 131 132 images.os.end = fit_get_end(images.fit_hdr_os); 133 134 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os, 135 &images.os.load)) { 136 puts("Can't get image load address!\n"); 137 bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR); 138 return 1; 139 } 140 break; 141 #endif 142 #ifdef CONFIG_ANDROID_BOOT_IMAGE 143 case IMAGE_FORMAT_ANDROID: 144 images.os.type = IH_TYPE_KERNEL; 145 images.os.comp = IH_COMP_NONE; 146 images.os.os = IH_OS_LINUX; 147 images.ep = images.os.load; 148 ep_found = true; 149 150 images.os.end = android_image_get_end(os_hdr); 151 images.os.load = android_image_get_kload(os_hdr); 152 break; 153 #endif 154 default: 155 puts("ERROR: unknown image format type!\n"); 156 return 1; 157 } 158 159 /* find kernel entry point */ 160 if (images.legacy_hdr_valid) { 161 images.ep = image_get_ep(&images.legacy_hdr_os_copy); 162 #if defined(CONFIG_FIT) 163 } else if (images.fit_uname_os) { 164 int ret; 165 166 ret = fit_image_get_entry(images.fit_hdr_os, 167 images.fit_noffset_os, &images.ep); 168 if (ret) { 169 puts("Can't get entry point property!\n"); 170 return 1; 171 } 172 #endif 173 } else if (!ep_found) { 174 puts("Could not find kernel entry point!\n"); 175 return 1; 176 } 177 178 if (images.os.type == IH_TYPE_KERNEL_NOLOAD) { 179 images.os.load = images.os.image_start; 180 images.ep += images.os.load; 181 } 182 183 images.os.start = (ulong)os_hdr; 184 185 return 0; 186 } 187 188 static int bootm_find_ramdisk(int flag, int argc, char * const argv[]) 189 { 190 int ret; 191 192 /* find ramdisk */ 193 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH, 194 &images.rd_start, &images.rd_end); 195 if (ret) { 196 puts("Ramdisk image is corrupt or invalid\n"); 197 return 1; 198 } 199 200 return 0; 201 } 202 203 #if defined(CONFIG_OF_LIBFDT) 204 static int bootm_find_fdt(int flag, int argc, char * const argv[]) 205 { 206 int ret; 207 208 /* find flattened device tree */ 209 ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images, 210 &images.ft_addr, &images.ft_len); 211 if (ret) { 212 puts("Could not find a valid device tree\n"); 213 return 1; 214 } 215 216 set_working_fdt_addr(images.ft_addr); 217 218 return 0; 219 } 220 #endif 221 222 int bootm_find_ramdisk_fdt(int flag, int argc, char * const argv[]) 223 { 224 if (bootm_find_ramdisk(flag, argc, argv)) 225 return 1; 226 227 #if defined(CONFIG_OF_LIBFDT) 228 if (bootm_find_fdt(flag, argc, argv)) 229 return 1; 230 #endif 231 232 return 0; 233 } 234 235 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc, 236 char * const argv[]) 237 { 238 if (((images.os.type == IH_TYPE_KERNEL) || 239 (images.os.type == IH_TYPE_KERNEL_NOLOAD) || 240 (images.os.type == IH_TYPE_MULTI)) && 241 (images.os.os == IH_OS_LINUX || 242 images.os.os == IH_OS_VXWORKS)) 243 return bootm_find_ramdisk_fdt(flag, argc, argv); 244 245 return 0; 246 } 247 248 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end, 249 int boot_progress) 250 { 251 image_info_t os = images->os; 252 uint8_t comp = os.comp; 253 ulong load = os.load; 254 ulong blob_start = os.start; 255 ulong blob_end = os.end; 256 ulong image_start = os.image_start; 257 ulong image_len = os.image_len; 258 __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN; 259 int no_overlap = 0; 260 void *load_buf, *image_buf; 261 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO) 262 int ret; 263 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */ 264 265 const char *type_name = genimg_get_type_name(os.type); 266 267 load_buf = map_sysmem(load, unc_len); 268 image_buf = map_sysmem(image_start, image_len); 269 switch (comp) { 270 case IH_COMP_NONE: 271 if (load == image_start) { 272 printf(" XIP %s ... ", type_name); 273 no_overlap = 1; 274 } else { 275 printf(" Loading %s ... ", type_name); 276 memmove_wd(load_buf, image_buf, image_len, CHUNKSZ); 277 } 278 *load_end = load + image_len; 279 break; 280 #ifdef CONFIG_GZIP 281 case IH_COMP_GZIP: 282 printf(" Uncompressing %s ... ", type_name); 283 if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) { 284 puts("GUNZIP: uncompress, out-of-mem or overwrite error - must RESET board to recover\n"); 285 if (boot_progress) 286 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 287 return BOOTM_ERR_RESET; 288 } 289 290 *load_end = load + image_len; 291 break; 292 #endif /* CONFIG_GZIP */ 293 #ifdef CONFIG_BZIP2 294 case IH_COMP_BZIP2: 295 printf(" Uncompressing %s ... ", type_name); 296 /* 297 * If we've got less than 4 MB of malloc() space, 298 * use slower decompression algorithm which requires 299 * at most 2300 KB of memory. 300 */ 301 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len, 302 image_buf, image_len, 303 CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0); 304 if (i != BZ_OK) { 305 printf("BUNZIP2: uncompress or overwrite error %d - must RESET board to recover\n", 306 i); 307 if (boot_progress) 308 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 309 return BOOTM_ERR_RESET; 310 } 311 312 *load_end = load + unc_len; 313 break; 314 #endif /* CONFIG_BZIP2 */ 315 #ifdef CONFIG_LZMA 316 case IH_COMP_LZMA: { 317 SizeT lzma_len = unc_len; 318 printf(" Uncompressing %s ... ", type_name); 319 320 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len, 321 image_buf, image_len); 322 unc_len = lzma_len; 323 if (ret != SZ_OK) { 324 printf("LZMA: uncompress or overwrite error %d - must RESET board to recover\n", 325 ret); 326 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 327 return BOOTM_ERR_RESET; 328 } 329 *load_end = load + unc_len; 330 break; 331 } 332 #endif /* CONFIG_LZMA */ 333 #ifdef CONFIG_LZO 334 case IH_COMP_LZO: { 335 size_t size = unc_len; 336 337 printf(" Uncompressing %s ... ", type_name); 338 339 ret = lzop_decompress(image_buf, image_len, load_buf, &size); 340 if (ret != LZO_E_OK) { 341 printf("LZO: uncompress or overwrite error %d - must RESET board to recover\n", 342 ret); 343 if (boot_progress) 344 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 345 return BOOTM_ERR_RESET; 346 } 347 348 *load_end = load + size; 349 break; 350 } 351 #endif /* CONFIG_LZO */ 352 default: 353 printf("Unimplemented compression type %d\n", comp); 354 return BOOTM_ERR_UNIMPLEMENTED; 355 } 356 357 flush_cache(load, (*load_end - load) * sizeof(ulong)); 358 359 puts("OK\n"); 360 debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end); 361 bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED); 362 363 if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) { 364 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n", 365 blob_start, blob_end); 366 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load, 367 *load_end); 368 369 /* Check what type of image this is. */ 370 if (images->legacy_hdr_valid) { 371 if (image_get_type(&images->legacy_hdr_os_copy) 372 == IH_TYPE_MULTI) 373 puts("WARNING: legacy format multi component image overwritten\n"); 374 return BOOTM_ERR_OVERLAP; 375 } else { 376 puts("ERROR: new format image overwritten - must RESET the board to recover\n"); 377 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN); 378 return BOOTM_ERR_RESET; 379 } 380 } 381 382 return 0; 383 } 384 385 /** 386 * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot 387 * 388 * @return interrupt flag (0 if interrupts were disabled, non-zero if they were 389 * enabled) 390 */ 391 ulong bootm_disable_interrupts(void) 392 { 393 ulong iflag; 394 395 /* 396 * We have reached the point of no return: we are going to 397 * overwrite all exception vector code, so we cannot easily 398 * recover from any failures any more... 399 */ 400 iflag = disable_interrupts(); 401 #ifdef CONFIG_NETCONSOLE 402 /* Stop the ethernet stack if NetConsole could have left it up */ 403 eth_halt(); 404 eth_unregister(eth_get_dev()); 405 #endif 406 407 #if defined(CONFIG_CMD_USB) 408 /* 409 * turn off USB to prevent the host controller from writing to the 410 * SDRAM while Linux is booting. This could happen (at least for OHCI 411 * controller), because the HCCA (Host Controller Communication Area) 412 * lies within the SDRAM and the host controller writes continously to 413 * this area (as busmaster!). The HccaFrameNumber is for example 414 * updated every 1 ms within the HCCA structure in SDRAM! For more 415 * details see the OpenHCI specification. 416 */ 417 usb_stop(); 418 #endif 419 return iflag; 420 } 421 422 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) 423 424 #define CONSOLE_ARG "console=" 425 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1) 426 427 static void fixup_silent_linux(void) 428 { 429 char *buf; 430 const char *env_val; 431 char *cmdline = getenv("bootargs"); 432 int want_silent; 433 434 /* 435 * Only fix cmdline when requested. The environment variable can be: 436 * 437 * no - we never fixup 438 * yes - we always fixup 439 * unset - we rely on the console silent flag 440 */ 441 want_silent = getenv_yesno("silent_linux"); 442 if (want_silent == 0) 443 return; 444 else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT)) 445 return; 446 447 debug("before silent fix-up: %s\n", cmdline); 448 if (cmdline && (cmdline[0] != '\0')) { 449 char *start = strstr(cmdline, CONSOLE_ARG); 450 451 /* Allocate space for maximum possible new command line */ 452 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1); 453 if (!buf) { 454 debug("%s: out of memory\n", __func__); 455 return; 456 } 457 458 if (start) { 459 char *end = strchr(start, ' '); 460 int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN; 461 462 strncpy(buf, cmdline, num_start_bytes); 463 if (end) 464 strcpy(buf + num_start_bytes, end); 465 else 466 buf[num_start_bytes] = '\0'; 467 } else { 468 sprintf(buf, "%s %s", cmdline, CONSOLE_ARG); 469 } 470 env_val = buf; 471 } else { 472 buf = NULL; 473 env_val = CONSOLE_ARG; 474 } 475 476 setenv("bootargs", env_val); 477 debug("after silent fix-up: %s\n", env_val); 478 free(buf); 479 } 480 #endif /* CONFIG_SILENT_CONSOLE */ 481 482 /** 483 * Execute selected states of the bootm command. 484 * 485 * Note the arguments to this state must be the first argument, Any 'bootm' 486 * or sub-command arguments must have already been taken. 487 * 488 * Note that if states contains more than one flag it MUST contain 489 * BOOTM_STATE_START, since this handles and consumes the command line args. 490 * 491 * Also note that aside from boot_os_fn functions and bootm_load_os no other 492 * functions we store the return value of in 'ret' may use a negative return 493 * value, without special handling. 494 * 495 * @param cmdtp Pointer to bootm command table entry 496 * @param flag Command flags (CMD_FLAG_...) 497 * @param argc Number of subcommand arguments (0 = no arguments) 498 * @param argv Arguments 499 * @param states Mask containing states to run (BOOTM_STATE_...) 500 * @param images Image header information 501 * @param boot_progress 1 to show boot progress, 0 to not do this 502 * @return 0 if ok, something else on error. Some errors will cause this 503 * function to perform a reboot! If states contains BOOTM_STATE_OS_GO 504 * then the intent is to boot an OS, so this function will not return 505 * unless the image type is standalone. 506 */ 507 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], 508 int states, bootm_headers_t *images, int boot_progress) 509 { 510 boot_os_fn *boot_fn; 511 ulong iflag = 0; 512 int ret = 0, need_boot_fn; 513 514 images->state |= states; 515 516 /* 517 * Work through the states and see how far we get. We stop on 518 * any error. 519 */ 520 if (states & BOOTM_STATE_START) 521 ret = bootm_start(cmdtp, flag, argc, argv); 522 523 if (!ret && (states & BOOTM_STATE_FINDOS)) 524 ret = bootm_find_os(cmdtp, flag, argc, argv); 525 526 if (!ret && (states & BOOTM_STATE_FINDOTHER)) { 527 ret = bootm_find_other(cmdtp, flag, argc, argv); 528 argc = 0; /* consume the args */ 529 } 530 531 /* Load the OS */ 532 if (!ret && (states & BOOTM_STATE_LOADOS)) { 533 ulong load_end; 534 535 iflag = bootm_disable_interrupts(); 536 ret = bootm_load_os(images, &load_end, 0); 537 if (ret == 0) 538 lmb_reserve(&images->lmb, images->os.load, 539 (load_end - images->os.load)); 540 else if (ret && ret != BOOTM_ERR_OVERLAP) 541 goto err; 542 else if (ret == BOOTM_ERR_OVERLAP) 543 ret = 0; 544 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) 545 if (images->os.os == IH_OS_LINUX) 546 fixup_silent_linux(); 547 #endif 548 } 549 550 /* Relocate the ramdisk */ 551 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 552 if (!ret && (states & BOOTM_STATE_RAMDISK)) { 553 ulong rd_len = images->rd_end - images->rd_start; 554 555 ret = boot_ramdisk_high(&images->lmb, images->rd_start, 556 rd_len, &images->initrd_start, &images->initrd_end); 557 if (!ret) { 558 setenv_hex("initrd_start", images->initrd_start); 559 setenv_hex("initrd_end", images->initrd_end); 560 } 561 } 562 #endif 563 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB) 564 if (!ret && (states & BOOTM_STATE_FDT)) { 565 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr); 566 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr, 567 &images->ft_len); 568 } 569 #endif 570 571 /* From now on, we need the OS boot function */ 572 if (ret) 573 return ret; 574 boot_fn = bootm_os_get_boot_func(images->os.os); 575 need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE | 576 BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP | 577 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO); 578 if (boot_fn == NULL && need_boot_fn) { 579 if (iflag) 580 enable_interrupts(); 581 printf("ERROR: booting os '%s' (%d) is not supported\n", 582 genimg_get_os_name(images->os.os), images->os.os); 583 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS); 584 return 1; 585 } 586 587 /* Call various other states that are not generally used */ 588 if (!ret && (states & BOOTM_STATE_OS_CMDLINE)) 589 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images); 590 if (!ret && (states & BOOTM_STATE_OS_BD_T)) 591 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images); 592 if (!ret && (states & BOOTM_STATE_OS_PREP)) 593 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images); 594 595 #ifdef CONFIG_TRACE 596 /* Pretend to run the OS, then run a user command */ 597 if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) { 598 char *cmd_list = getenv("fakegocmd"); 599 600 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO, 601 images, boot_fn); 602 if (!ret && cmd_list) 603 ret = run_command_list(cmd_list, -1, flag); 604 } 605 #endif 606 607 /* Check for unsupported subcommand. */ 608 if (ret) { 609 puts("subcommand not supported\n"); 610 return ret; 611 } 612 613 /* Now run the OS! We hope this doesn't return */ 614 if (!ret && (states & BOOTM_STATE_OS_GO)) 615 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO, 616 images, boot_fn); 617 618 /* Deal with any fallout */ 619 err: 620 if (iflag) 621 enable_interrupts(); 622 623 if (ret == BOOTM_ERR_UNIMPLEMENTED) 624 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL); 625 else if (ret == BOOTM_ERR_RESET) 626 do_reset(cmdtp, flag, argc, argv); 627 628 return ret; 629 } 630 631 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 632 /** 633 * image_get_kernel - verify legacy format kernel image 634 * @img_addr: in RAM address of the legacy format image to be verified 635 * @verify: data CRC verification flag 636 * 637 * image_get_kernel() verifies legacy image integrity and returns pointer to 638 * legacy image header if image verification was completed successfully. 639 * 640 * returns: 641 * pointer to a legacy image header if valid image was found 642 * otherwise return NULL 643 */ 644 static image_header_t *image_get_kernel(ulong img_addr, int verify) 645 { 646 image_header_t *hdr = (image_header_t *)img_addr; 647 648 if (!image_check_magic(hdr)) { 649 puts("Bad Magic Number\n"); 650 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC); 651 return NULL; 652 } 653 bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER); 654 655 if (!image_check_hcrc(hdr)) { 656 puts("Bad Header Checksum\n"); 657 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER); 658 return NULL; 659 } 660 661 bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM); 662 image_print_contents(hdr); 663 664 if (verify) { 665 puts(" Verifying Checksum ... "); 666 if (!image_check_dcrc(hdr)) { 667 printf("Bad Data CRC\n"); 668 bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM); 669 return NULL; 670 } 671 puts("OK\n"); 672 } 673 bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH); 674 675 if (!image_check_target_arch(hdr)) { 676 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr)); 677 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH); 678 return NULL; 679 } 680 return hdr; 681 } 682 #endif 683 684 /** 685 * boot_get_kernel - find kernel image 686 * @os_data: pointer to a ulong variable, will hold os data start address 687 * @os_len: pointer to a ulong variable, will hold os data length 688 * 689 * boot_get_kernel() tries to find a kernel image, verifies its integrity 690 * and locates kernel data. 691 * 692 * returns: 693 * pointer to image header if valid image was found, plus kernel start 694 * address and length, otherwise NULL 695 */ 696 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, 697 char * const argv[], bootm_headers_t *images, 698 ulong *os_data, ulong *os_len) 699 { 700 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 701 image_header_t *hdr; 702 #endif 703 ulong img_addr; 704 const void *buf; 705 #if defined(CONFIG_FIT) 706 const char *fit_uname_config = NULL; 707 const char *fit_uname_kernel = NULL; 708 int os_noffset; 709 #endif 710 711 /* find out kernel image address */ 712 if (argc < 1) { 713 img_addr = load_addr; 714 debug("* kernel: default image load address = 0x%08lx\n", 715 load_addr); 716 #if defined(CONFIG_FIT) 717 } else if (fit_parse_conf(argv[0], load_addr, &img_addr, 718 &fit_uname_config)) { 719 debug("* kernel: config '%s' from image at 0x%08lx\n", 720 fit_uname_config, img_addr); 721 } else if (fit_parse_subimage(argv[0], load_addr, &img_addr, 722 &fit_uname_kernel)) { 723 debug("* kernel: subimage '%s' from image at 0x%08lx\n", 724 fit_uname_kernel, img_addr); 725 #endif 726 } else { 727 img_addr = simple_strtoul(argv[0], NULL, 16); 728 debug("* kernel: cmdline image address = 0x%08lx\n", 729 img_addr); 730 } 731 732 bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC); 733 734 /* copy from dataflash if needed */ 735 img_addr = genimg_get_image(img_addr); 736 737 /* check image type, for FIT images get FIT kernel node */ 738 *os_data = *os_len = 0; 739 buf = map_sysmem(img_addr, 0); 740 switch (genimg_get_format(buf)) { 741 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 742 case IMAGE_FORMAT_LEGACY: 743 printf("## Booting kernel from Legacy Image at %08lx ...\n", 744 img_addr); 745 hdr = image_get_kernel(img_addr, images->verify); 746 if (!hdr) 747 return NULL; 748 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE); 749 750 /* get os_data and os_len */ 751 switch (image_get_type(hdr)) { 752 case IH_TYPE_KERNEL: 753 case IH_TYPE_KERNEL_NOLOAD: 754 *os_data = image_get_data(hdr); 755 *os_len = image_get_data_size(hdr); 756 break; 757 case IH_TYPE_MULTI: 758 image_multi_getimg(hdr, 0, os_data, os_len); 759 break; 760 case IH_TYPE_STANDALONE: 761 *os_data = image_get_data(hdr); 762 *os_len = image_get_data_size(hdr); 763 break; 764 default: 765 printf("Wrong Image Type for %s command\n", 766 cmdtp->name); 767 bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE); 768 return NULL; 769 } 770 771 /* 772 * copy image header to allow for image overwrites during 773 * kernel decompression. 774 */ 775 memmove(&images->legacy_hdr_os_copy, hdr, 776 sizeof(image_header_t)); 777 778 /* save pointer to image header */ 779 images->legacy_hdr_os = hdr; 780 781 images->legacy_hdr_valid = 1; 782 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE); 783 break; 784 #endif 785 #if defined(CONFIG_FIT) 786 case IMAGE_FORMAT_FIT: 787 os_noffset = fit_image_load(images, img_addr, 788 &fit_uname_kernel, &fit_uname_config, 789 IH_ARCH_DEFAULT, IH_TYPE_KERNEL, 790 BOOTSTAGE_ID_FIT_KERNEL_START, 791 FIT_LOAD_IGNORED, os_data, os_len); 792 if (os_noffset < 0) 793 return NULL; 794 795 images->fit_hdr_os = map_sysmem(img_addr, 0); 796 images->fit_uname_os = fit_uname_kernel; 797 images->fit_uname_cfg = fit_uname_config; 798 images->fit_noffset_os = os_noffset; 799 break; 800 #endif 801 #ifdef CONFIG_ANDROID_BOOT_IMAGE 802 case IMAGE_FORMAT_ANDROID: 803 printf("## Booting Android Image at 0x%08lx ...\n", img_addr); 804 if (android_image_get_kernel(buf, images->verify, 805 os_data, os_len)) 806 return NULL; 807 break; 808 #endif 809 default: 810 printf("Wrong Image Format for %s command\n", cmdtp->name); 811 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO); 812 return NULL; 813 } 814 815 debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n", 816 *os_data, *os_len, *os_len); 817 818 return buf; 819 } 820 821 #endif /* ndef USE_HOSTCC */ 822