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 <errno.h> 13 #include <fdt_support.h> 14 #include <lmb.h> 15 #include <malloc.h> 16 #include <mapmem.h> 17 #include <asm/io.h> 18 #include <linux/lzo.h> 19 #include <lzma/LzmaTypes.h> 20 #include <lzma/LzmaDec.h> 21 #include <lzma/LzmaTools.h> 22 #if defined(CONFIG_CMD_USB) 23 #include <usb.h> 24 #endif 25 #else 26 #include "mkimage.h" 27 #endif 28 29 #include <command.h> 30 #include <bootm.h> 31 #include <image.h> 32 33 #ifndef CONFIG_SYS_BOOTM_LEN 34 /* use 8MByte as default max gunzip size */ 35 #define CONFIG_SYS_BOOTM_LEN 0x800000 36 #endif 37 38 #define IH_INITRD_ARCH IH_ARCH_DEFAULT 39 40 #ifndef USE_HOSTCC 41 42 DECLARE_GLOBAL_DATA_PTR; 43 44 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, 45 char * const argv[], bootm_headers_t *images, 46 ulong *os_data, ulong *os_len); 47 48 #ifdef CONFIG_LMB 49 static void boot_start_lmb(bootm_headers_t *images) 50 { 51 ulong mem_start; 52 phys_size_t mem_size; 53 54 lmb_init(&images->lmb); 55 56 mem_start = getenv_bootm_low(); 57 mem_size = getenv_bootm_size(); 58 59 lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size); 60 61 arch_lmb_reserve(&images->lmb); 62 board_lmb_reserve(&images->lmb); 63 } 64 #else 65 #define lmb_reserve(lmb, base, size) 66 static inline void boot_start_lmb(bootm_headers_t *images) { } 67 #endif 68 69 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, 70 char * const argv[]) 71 { 72 memset((void *)&images, 0, sizeof(images)); 73 images.verify = getenv_yesno("verify"); 74 75 boot_start_lmb(&images); 76 77 bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start"); 78 images.state = BOOTM_STATE_START; 79 80 return 0; 81 } 82 83 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc, 84 char * const argv[]) 85 { 86 const void *os_hdr; 87 bool ep_found = false; 88 int ret; 89 90 /* get kernel image header, start address and length */ 91 os_hdr = boot_get_kernel(cmdtp, flag, argc, argv, 92 &images, &images.os.image_start, &images.os.image_len); 93 if (images.os.image_len == 0) { 94 puts("ERROR: can't get kernel image!\n"); 95 return 1; 96 } 97 98 /* get image parameters */ 99 switch (genimg_get_format(os_hdr)) { 100 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 101 case IMAGE_FORMAT_LEGACY: 102 images.os.type = image_get_type(os_hdr); 103 images.os.comp = image_get_comp(os_hdr); 104 images.os.os = image_get_os(os_hdr); 105 106 images.os.end = image_get_image_end(os_hdr); 107 images.os.load = image_get_load(os_hdr); 108 images.os.arch = image_get_arch(os_hdr); 109 break; 110 #endif 111 #if defined(CONFIG_FIT) 112 case IMAGE_FORMAT_FIT: 113 if (fit_image_get_type(images.fit_hdr_os, 114 images.fit_noffset_os, 115 &images.os.type)) { 116 puts("Can't get image type!\n"); 117 bootstage_error(BOOTSTAGE_ID_FIT_TYPE); 118 return 1; 119 } 120 121 if (fit_image_get_comp(images.fit_hdr_os, 122 images.fit_noffset_os, 123 &images.os.comp)) { 124 puts("Can't get image compression!\n"); 125 bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION); 126 return 1; 127 } 128 129 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os, 130 &images.os.os)) { 131 puts("Can't get image OS!\n"); 132 bootstage_error(BOOTSTAGE_ID_FIT_OS); 133 return 1; 134 } 135 136 if (fit_image_get_arch(images.fit_hdr_os, 137 images.fit_noffset_os, 138 &images.os.arch)) { 139 puts("Can't get image ARCH!\n"); 140 return 1; 141 } 142 143 images.os.end = fit_get_end(images.fit_hdr_os); 144 145 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os, 146 &images.os.load)) { 147 puts("Can't get image load address!\n"); 148 bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR); 149 return 1; 150 } 151 break; 152 #endif 153 #ifdef CONFIG_ANDROID_BOOT_IMAGE 154 case IMAGE_FORMAT_ANDROID: 155 images.os.type = IH_TYPE_KERNEL; 156 images.os.comp = IH_COMP_NONE; 157 images.os.os = IH_OS_LINUX; 158 159 images.os.end = android_image_get_end(os_hdr); 160 images.os.load = android_image_get_kload(os_hdr); 161 images.ep = images.os.load; 162 ep_found = true; 163 break; 164 #endif 165 default: 166 puts("ERROR: unknown image format type!\n"); 167 return 1; 168 } 169 170 /* If we have a valid setup.bin, we will use that for entry (x86) */ 171 if (images.os.arch == IH_ARCH_I386 || 172 images.os.arch == IH_ARCH_X86_64) { 173 ulong len; 174 175 ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len); 176 if (ret < 0 && ret != -ENOENT) { 177 puts("Could not find a valid setup.bin for x86\n"); 178 return 1; 179 } 180 /* Kernel entry point is the setup.bin */ 181 } else if (images.legacy_hdr_valid) { 182 images.ep = image_get_ep(&images.legacy_hdr_os_copy); 183 #if defined(CONFIG_FIT) 184 } else if (images.fit_uname_os) { 185 int ret; 186 187 ret = fit_image_get_entry(images.fit_hdr_os, 188 images.fit_noffset_os, &images.ep); 189 if (ret) { 190 puts("Can't get entry point property!\n"); 191 return 1; 192 } 193 #endif 194 } else if (!ep_found) { 195 puts("Could not find kernel entry point!\n"); 196 return 1; 197 } 198 199 if (images.os.type == IH_TYPE_KERNEL_NOLOAD) { 200 images.os.load = images.os.image_start; 201 images.ep += images.os.load; 202 } 203 204 images.os.start = (ulong)os_hdr; 205 206 return 0; 207 } 208 209 static int bootm_find_ramdisk(int flag, int argc, char * const argv[]) 210 { 211 int ret; 212 213 /* find ramdisk */ 214 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH, 215 &images.rd_start, &images.rd_end); 216 if (ret) { 217 puts("Ramdisk image is corrupt or invalid\n"); 218 return 1; 219 } 220 221 return 0; 222 } 223 224 #if defined(CONFIG_OF_LIBFDT) 225 static int bootm_find_fdt(int flag, int argc, char * const argv[]) 226 { 227 int ret; 228 229 /* find flattened device tree */ 230 ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images, 231 &images.ft_addr, &images.ft_len); 232 if (ret) { 233 puts("Could not find a valid device tree\n"); 234 return 1; 235 } 236 237 set_working_fdt_addr((ulong)images.ft_addr); 238 239 return 0; 240 } 241 #endif 242 243 int bootm_find_ramdisk_fdt(int flag, int argc, char * const argv[]) 244 { 245 if (bootm_find_ramdisk(flag, argc, argv)) 246 return 1; 247 248 #if defined(CONFIG_OF_LIBFDT) 249 if (bootm_find_fdt(flag, argc, argv)) 250 return 1; 251 #endif 252 253 return 0; 254 } 255 256 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc, 257 char * const argv[]) 258 { 259 if (((images.os.type == IH_TYPE_KERNEL) || 260 (images.os.type == IH_TYPE_KERNEL_NOLOAD) || 261 (images.os.type == IH_TYPE_MULTI)) && 262 (images.os.os == IH_OS_LINUX || 263 images.os.os == IH_OS_VXWORKS)) 264 return bootm_find_ramdisk_fdt(flag, argc, argv); 265 266 return 0; 267 } 268 #endif /* USE_HOSTC */ 269 270 /** 271 * print_decomp_msg() - Print a suitable decompression/loading message 272 * 273 * @type: OS type (IH_OS_...) 274 * @comp_type: Compression type being used (IH_COMP_...) 275 * @is_xip: true if the load address matches the image start 276 */ 277 static void print_decomp_msg(int comp_type, int type, bool is_xip) 278 { 279 const char *name = genimg_get_type_name(type); 280 281 if (comp_type == IH_COMP_NONE) 282 printf(" %s %s ... ", is_xip ? "XIP" : "Loading", name); 283 else 284 printf(" Uncompressing %s ... ", name); 285 } 286 287 /** 288 * handle_decomp_error() - display a decompression error 289 * 290 * This function tries to produce a useful message. In the case where the 291 * uncompressed size is the same as the available space, we can assume that 292 * the image is too large for the buffer. 293 * 294 * @comp_type: Compression type being used (IH_COMP_...) 295 * @uncomp_size: Number of bytes uncompressed 296 * @unc_len: Amount of space available for decompression 297 * @ret: Error code to report 298 * @return BOOTM_ERR_RESET, indicating that the board must be reset 299 */ 300 static int handle_decomp_error(int comp_type, size_t uncomp_size, 301 size_t unc_len, int ret) 302 { 303 const char *name = genimg_get_comp_name(comp_type); 304 305 if (uncomp_size >= unc_len) 306 printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n"); 307 else 308 printf("%s: uncompress error %d\n", name, ret); 309 310 /* 311 * The decompression routines are now safe, so will not write beyond 312 * their bounds. Probably it is not necessary to reset, but maintain 313 * the current behaviour for now. 314 */ 315 printf("Must RESET board to recover\n"); 316 #ifndef USE_HOSTCC 317 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 318 #endif 319 320 return BOOTM_ERR_RESET; 321 } 322 323 int bootm_decomp_image(int comp, ulong load, ulong image_start, int type, 324 void *load_buf, void *image_buf, ulong image_len, 325 uint unc_len, ulong *load_end) 326 { 327 int ret = 0; 328 329 *load_end = load; 330 print_decomp_msg(comp, type, load == image_start); 331 332 /* 333 * Load the image to the right place, decompressing if needed. After 334 * this, image_len will be set to the number of uncompressed bytes 335 * loaded, ret will be non-zero on error. 336 */ 337 switch (comp) { 338 case IH_COMP_NONE: 339 if (load == image_start) 340 break; 341 if (image_len <= unc_len) 342 memmove_wd(load_buf, image_buf, image_len, CHUNKSZ); 343 else 344 ret = 1; 345 break; 346 #ifdef CONFIG_GZIP 347 case IH_COMP_GZIP: { 348 ret = gunzip(load_buf, unc_len, image_buf, &image_len); 349 break; 350 } 351 #endif /* CONFIG_GZIP */ 352 #ifdef CONFIG_BZIP2 353 case IH_COMP_BZIP2: { 354 uint size = unc_len; 355 356 /* 357 * If we've got less than 4 MB of malloc() space, 358 * use slower decompression algorithm which requires 359 * at most 2300 KB of memory. 360 */ 361 ret = BZ2_bzBuffToBuffDecompress(load_buf, &size, 362 image_buf, image_len, 363 CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0); 364 image_len = size; 365 break; 366 } 367 #endif /* CONFIG_BZIP2 */ 368 #ifdef CONFIG_LZMA 369 case IH_COMP_LZMA: { 370 SizeT lzma_len = unc_len; 371 372 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len, 373 image_buf, image_len); 374 image_len = lzma_len; 375 break; 376 } 377 #endif /* CONFIG_LZMA */ 378 #ifdef CONFIG_LZO 379 case IH_COMP_LZO: { 380 size_t size = unc_len; 381 382 ret = lzop_decompress(image_buf, image_len, load_buf, &size); 383 image_len = size; 384 break; 385 } 386 #endif /* CONFIG_LZO */ 387 default: 388 printf("Unimplemented compression type %d\n", comp); 389 return BOOTM_ERR_UNIMPLEMENTED; 390 } 391 392 if (ret) 393 return handle_decomp_error(comp, image_len, unc_len, ret); 394 *load_end = load + image_len; 395 396 puts("OK\n"); 397 398 return 0; 399 } 400 401 #ifndef USE_HOSTCC 402 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end, 403 int boot_progress) 404 { 405 image_info_t os = images->os; 406 ulong load = os.load; 407 ulong blob_start = os.start; 408 ulong blob_end = os.end; 409 ulong image_start = os.image_start; 410 ulong image_len = os.image_len; 411 bool no_overlap; 412 void *load_buf, *image_buf; 413 int err; 414 415 load_buf = map_sysmem(load, 0); 416 image_buf = map_sysmem(os.image_start, image_len); 417 err = bootm_decomp_image(os.comp, load, os.image_start, os.type, 418 load_buf, image_buf, image_len, 419 CONFIG_SYS_BOOTM_LEN, load_end); 420 if (err) { 421 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 422 return err; 423 } 424 flush_cache(load, (*load_end - load) * sizeof(ulong)); 425 426 debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end); 427 bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED); 428 429 no_overlap = (os.comp == IH_COMP_NONE && load == image_start); 430 431 if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) { 432 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n", 433 blob_start, blob_end); 434 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load, 435 *load_end); 436 437 /* Check what type of image this is. */ 438 if (images->legacy_hdr_valid) { 439 if (image_get_type(&images->legacy_hdr_os_copy) 440 == IH_TYPE_MULTI) 441 puts("WARNING: legacy format multi component image overwritten\n"); 442 return BOOTM_ERR_OVERLAP; 443 } else { 444 puts("ERROR: new format image overwritten - must RESET the board to recover\n"); 445 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN); 446 return BOOTM_ERR_RESET; 447 } 448 } 449 450 return 0; 451 } 452 453 /** 454 * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot 455 * 456 * @return interrupt flag (0 if interrupts were disabled, non-zero if they were 457 * enabled) 458 */ 459 ulong bootm_disable_interrupts(void) 460 { 461 ulong iflag; 462 463 /* 464 * We have reached the point of no return: we are going to 465 * overwrite all exception vector code, so we cannot easily 466 * recover from any failures any more... 467 */ 468 iflag = disable_interrupts(); 469 #ifdef CONFIG_NETCONSOLE 470 /* Stop the ethernet stack if NetConsole could have left it up */ 471 eth_halt(); 472 eth_unregister(eth_get_dev()); 473 #endif 474 475 #if defined(CONFIG_CMD_USB) 476 /* 477 * turn off USB to prevent the host controller from writing to the 478 * SDRAM while Linux is booting. This could happen (at least for OHCI 479 * controller), because the HCCA (Host Controller Communication Area) 480 * lies within the SDRAM and the host controller writes continously to 481 * this area (as busmaster!). The HccaFrameNumber is for example 482 * updated every 1 ms within the HCCA structure in SDRAM! For more 483 * details see the OpenHCI specification. 484 */ 485 usb_stop(); 486 #endif 487 return iflag; 488 } 489 490 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) 491 492 #define CONSOLE_ARG "console=" 493 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1) 494 495 static void fixup_silent_linux(void) 496 { 497 char *buf; 498 const char *env_val; 499 char *cmdline = getenv("bootargs"); 500 int want_silent; 501 502 /* 503 * Only fix cmdline when requested. The environment variable can be: 504 * 505 * no - we never fixup 506 * yes - we always fixup 507 * unset - we rely on the console silent flag 508 */ 509 want_silent = getenv_yesno("silent_linux"); 510 if (want_silent == 0) 511 return; 512 else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT)) 513 return; 514 515 debug("before silent fix-up: %s\n", cmdline); 516 if (cmdline && (cmdline[0] != '\0')) { 517 char *start = strstr(cmdline, CONSOLE_ARG); 518 519 /* Allocate space for maximum possible new command line */ 520 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1); 521 if (!buf) { 522 debug("%s: out of memory\n", __func__); 523 return; 524 } 525 526 if (start) { 527 char *end = strchr(start, ' '); 528 int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN; 529 530 strncpy(buf, cmdline, num_start_bytes); 531 if (end) 532 strcpy(buf + num_start_bytes, end); 533 else 534 buf[num_start_bytes] = '\0'; 535 } else { 536 sprintf(buf, "%s %s", cmdline, CONSOLE_ARG); 537 } 538 env_val = buf; 539 } else { 540 buf = NULL; 541 env_val = CONSOLE_ARG; 542 } 543 544 setenv("bootargs", env_val); 545 debug("after silent fix-up: %s\n", env_val); 546 free(buf); 547 } 548 #endif /* CONFIG_SILENT_CONSOLE */ 549 550 /** 551 * Execute selected states of the bootm command. 552 * 553 * Note the arguments to this state must be the first argument, Any 'bootm' 554 * or sub-command arguments must have already been taken. 555 * 556 * Note that if states contains more than one flag it MUST contain 557 * BOOTM_STATE_START, since this handles and consumes the command line args. 558 * 559 * Also note that aside from boot_os_fn functions and bootm_load_os no other 560 * functions we store the return value of in 'ret' may use a negative return 561 * value, without special handling. 562 * 563 * @param cmdtp Pointer to bootm command table entry 564 * @param flag Command flags (CMD_FLAG_...) 565 * @param argc Number of subcommand arguments (0 = no arguments) 566 * @param argv Arguments 567 * @param states Mask containing states to run (BOOTM_STATE_...) 568 * @param images Image header information 569 * @param boot_progress 1 to show boot progress, 0 to not do this 570 * @return 0 if ok, something else on error. Some errors will cause this 571 * function to perform a reboot! If states contains BOOTM_STATE_OS_GO 572 * then the intent is to boot an OS, so this function will not return 573 * unless the image type is standalone. 574 */ 575 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], 576 int states, bootm_headers_t *images, int boot_progress) 577 { 578 boot_os_fn *boot_fn; 579 ulong iflag = 0; 580 int ret = 0, need_boot_fn; 581 582 images->state |= states; 583 584 /* 585 * Work through the states and see how far we get. We stop on 586 * any error. 587 */ 588 if (states & BOOTM_STATE_START) 589 ret = bootm_start(cmdtp, flag, argc, argv); 590 591 if (!ret && (states & BOOTM_STATE_FINDOS)) 592 ret = bootm_find_os(cmdtp, flag, argc, argv); 593 594 if (!ret && (states & BOOTM_STATE_FINDOTHER)) { 595 ret = bootm_find_other(cmdtp, flag, argc, argv); 596 argc = 0; /* consume the args */ 597 } 598 599 /* Load the OS */ 600 if (!ret && (states & BOOTM_STATE_LOADOS)) { 601 ulong load_end; 602 603 iflag = bootm_disable_interrupts(); 604 ret = bootm_load_os(images, &load_end, 0); 605 if (ret == 0) 606 lmb_reserve(&images->lmb, images->os.load, 607 (load_end - images->os.load)); 608 else if (ret && ret != BOOTM_ERR_OVERLAP) 609 goto err; 610 else if (ret == BOOTM_ERR_OVERLAP) 611 ret = 0; 612 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) 613 if (images->os.os == IH_OS_LINUX) 614 fixup_silent_linux(); 615 #endif 616 } 617 618 /* Relocate the ramdisk */ 619 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 620 if (!ret && (states & BOOTM_STATE_RAMDISK)) { 621 ulong rd_len = images->rd_end - images->rd_start; 622 623 ret = boot_ramdisk_high(&images->lmb, images->rd_start, 624 rd_len, &images->initrd_start, &images->initrd_end); 625 if (!ret) { 626 setenv_hex("initrd_start", images->initrd_start); 627 setenv_hex("initrd_end", images->initrd_end); 628 } 629 } 630 #endif 631 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB) 632 if (!ret && (states & BOOTM_STATE_FDT)) { 633 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr); 634 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr, 635 &images->ft_len); 636 } 637 #endif 638 639 /* From now on, we need the OS boot function */ 640 if (ret) 641 return ret; 642 boot_fn = bootm_os_get_boot_func(images->os.os); 643 need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE | 644 BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP | 645 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO); 646 if (boot_fn == NULL && need_boot_fn) { 647 if (iflag) 648 enable_interrupts(); 649 printf("ERROR: booting os '%s' (%d) is not supported\n", 650 genimg_get_os_name(images->os.os), images->os.os); 651 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS); 652 return 1; 653 } 654 655 /* Call various other states that are not generally used */ 656 if (!ret && (states & BOOTM_STATE_OS_CMDLINE)) 657 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images); 658 if (!ret && (states & BOOTM_STATE_OS_BD_T)) 659 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images); 660 if (!ret && (states & BOOTM_STATE_OS_PREP)) 661 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images); 662 663 #ifdef CONFIG_TRACE 664 /* Pretend to run the OS, then run a user command */ 665 if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) { 666 char *cmd_list = getenv("fakegocmd"); 667 668 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO, 669 images, boot_fn); 670 if (!ret && cmd_list) 671 ret = run_command_list(cmd_list, -1, flag); 672 } 673 #endif 674 675 /* Check for unsupported subcommand. */ 676 if (ret) { 677 puts("subcommand not supported\n"); 678 return ret; 679 } 680 681 /* Now run the OS! We hope this doesn't return */ 682 if (!ret && (states & BOOTM_STATE_OS_GO)) 683 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO, 684 images, boot_fn); 685 686 /* Deal with any fallout */ 687 err: 688 if (iflag) 689 enable_interrupts(); 690 691 if (ret == BOOTM_ERR_UNIMPLEMENTED) 692 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL); 693 else if (ret == BOOTM_ERR_RESET) 694 do_reset(cmdtp, flag, argc, argv); 695 696 return ret; 697 } 698 699 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 700 /** 701 * image_get_kernel - verify legacy format kernel image 702 * @img_addr: in RAM address of the legacy format image to be verified 703 * @verify: data CRC verification flag 704 * 705 * image_get_kernel() verifies legacy image integrity and returns pointer to 706 * legacy image header if image verification was completed successfully. 707 * 708 * returns: 709 * pointer to a legacy image header if valid image was found 710 * otherwise return NULL 711 */ 712 static image_header_t *image_get_kernel(ulong img_addr, int verify) 713 { 714 image_header_t *hdr = (image_header_t *)img_addr; 715 716 if (!image_check_magic(hdr)) { 717 puts("Bad Magic Number\n"); 718 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC); 719 return NULL; 720 } 721 bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER); 722 723 if (!image_check_hcrc(hdr)) { 724 puts("Bad Header Checksum\n"); 725 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER); 726 return NULL; 727 } 728 729 bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM); 730 image_print_contents(hdr); 731 732 if (verify) { 733 puts(" Verifying Checksum ... "); 734 if (!image_check_dcrc(hdr)) { 735 printf("Bad Data CRC\n"); 736 bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM); 737 return NULL; 738 } 739 puts("OK\n"); 740 } 741 bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH); 742 743 if (!image_check_target_arch(hdr)) { 744 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr)); 745 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH); 746 return NULL; 747 } 748 return hdr; 749 } 750 #endif 751 752 /** 753 * boot_get_kernel - find kernel image 754 * @os_data: pointer to a ulong variable, will hold os data start address 755 * @os_len: pointer to a ulong variable, will hold os data length 756 * 757 * boot_get_kernel() tries to find a kernel image, verifies its integrity 758 * and locates kernel data. 759 * 760 * returns: 761 * pointer to image header if valid image was found, plus kernel start 762 * address and length, otherwise NULL 763 */ 764 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, 765 char * const argv[], bootm_headers_t *images, 766 ulong *os_data, ulong *os_len) 767 { 768 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 769 image_header_t *hdr; 770 #endif 771 ulong img_addr; 772 const void *buf; 773 const char *fit_uname_config = NULL; 774 const char *fit_uname_kernel = NULL; 775 #if defined(CONFIG_FIT) 776 int os_noffset; 777 #endif 778 779 img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0], 780 &fit_uname_config, 781 &fit_uname_kernel); 782 783 bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC); 784 785 /* copy from dataflash if needed */ 786 img_addr = genimg_get_image(img_addr); 787 788 /* check image type, for FIT images get FIT kernel node */ 789 *os_data = *os_len = 0; 790 buf = map_sysmem(img_addr, 0); 791 switch (genimg_get_format(buf)) { 792 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 793 case IMAGE_FORMAT_LEGACY: 794 printf("## Booting kernel from Legacy Image at %08lx ...\n", 795 img_addr); 796 hdr = image_get_kernel(img_addr, images->verify); 797 if (!hdr) 798 return NULL; 799 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE); 800 801 /* get os_data and os_len */ 802 switch (image_get_type(hdr)) { 803 case IH_TYPE_KERNEL: 804 case IH_TYPE_KERNEL_NOLOAD: 805 *os_data = image_get_data(hdr); 806 *os_len = image_get_data_size(hdr); 807 break; 808 case IH_TYPE_MULTI: 809 image_multi_getimg(hdr, 0, os_data, os_len); 810 break; 811 case IH_TYPE_STANDALONE: 812 *os_data = image_get_data(hdr); 813 *os_len = image_get_data_size(hdr); 814 break; 815 default: 816 printf("Wrong Image Type for %s command\n", 817 cmdtp->name); 818 bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE); 819 return NULL; 820 } 821 822 /* 823 * copy image header to allow for image overwrites during 824 * kernel decompression. 825 */ 826 memmove(&images->legacy_hdr_os_copy, hdr, 827 sizeof(image_header_t)); 828 829 /* save pointer to image header */ 830 images->legacy_hdr_os = hdr; 831 832 images->legacy_hdr_valid = 1; 833 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE); 834 break; 835 #endif 836 #if defined(CONFIG_FIT) 837 case IMAGE_FORMAT_FIT: 838 os_noffset = fit_image_load(images, img_addr, 839 &fit_uname_kernel, &fit_uname_config, 840 IH_ARCH_DEFAULT, IH_TYPE_KERNEL, 841 BOOTSTAGE_ID_FIT_KERNEL_START, 842 FIT_LOAD_IGNORED, os_data, os_len); 843 if (os_noffset < 0) 844 return NULL; 845 846 images->fit_hdr_os = map_sysmem(img_addr, 0); 847 images->fit_uname_os = fit_uname_kernel; 848 images->fit_uname_cfg = fit_uname_config; 849 images->fit_noffset_os = os_noffset; 850 break; 851 #endif 852 #ifdef CONFIG_ANDROID_BOOT_IMAGE 853 case IMAGE_FORMAT_ANDROID: 854 printf("## Booting Android Image at 0x%08lx ...\n", img_addr); 855 if (android_image_get_kernel(buf, images->verify, 856 os_data, os_len)) 857 return NULL; 858 break; 859 #endif 860 default: 861 printf("Wrong Image Format for %s command\n", cmdtp->name); 862 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO); 863 return NULL; 864 } 865 866 debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n", 867 *os_data, *os_len, *os_len); 868 869 return buf; 870 } 871 #else /* USE_HOSTCC */ 872 873 void memmove_wd(void *to, void *from, size_t len, ulong chunksz) 874 { 875 memmove(to, from, len); 876 } 877 878 static int bootm_host_load_image(const void *fit, int req_image_type) 879 { 880 const char *fit_uname_config = NULL; 881 ulong data, len; 882 bootm_headers_t images; 883 int noffset; 884 ulong load_end; 885 uint8_t image_type; 886 uint8_t imape_comp; 887 void *load_buf; 888 int ret; 889 890 memset(&images, '\0', sizeof(images)); 891 images.verify = 1; 892 noffset = fit_image_load(&images, (ulong)fit, 893 NULL, &fit_uname_config, 894 IH_ARCH_DEFAULT, req_image_type, -1, 895 FIT_LOAD_IGNORED, &data, &len); 896 if (noffset < 0) 897 return noffset; 898 if (fit_image_get_type(fit, noffset, &image_type)) { 899 puts("Can't get image type!\n"); 900 return -EINVAL; 901 } 902 903 if (fit_image_get_comp(fit, noffset, &imape_comp)) { 904 puts("Can't get image compression!\n"); 905 return -EINVAL; 906 } 907 908 /* Allow the image to expand by a factor of 4, should be safe */ 909 load_buf = malloc((1 << 20) + len * 4); 910 ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf, 911 (void *)data, len, CONFIG_SYS_BOOTM_LEN, 912 &load_end); 913 free(load_buf); 914 915 if (ret && ret != BOOTM_ERR_UNIMPLEMENTED) 916 return ret; 917 918 return 0; 919 } 920 921 int bootm_host_load_images(const void *fit, int cfg_noffset) 922 { 923 static uint8_t image_types[] = { 924 IH_TYPE_KERNEL, 925 IH_TYPE_FLATDT, 926 IH_TYPE_RAMDISK, 927 }; 928 int err = 0; 929 int i; 930 931 for (i = 0; i < ARRAY_SIZE(image_types); i++) { 932 int ret; 933 934 ret = bootm_host_load_image(fit, image_types[i]); 935 if (!err && ret && ret != -ENOENT) 936 err = ret; 937 } 938 939 /* Return the first error we found */ 940 return err; 941 } 942 943 #endif /* ndef USE_HOSTCC */ 944