git.sur5r.net Git - u-boot/blob - common/bootm.c

   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 <asm/io.h>
  17 #include <linux/lzo.h>
  18 #include <lzma/LzmaTypes.h>
  19 #include <lzma/LzmaDec.h>
  20 #include <lzma/LzmaTools.h>
  21 #if defined(CONFIG_CMD_USB)
  22 #include <usb.h>
  23 #endif
  24 #else
  25 #include "mkimage.h"
  26 #endif
  27
  28 #include <command.h>
  29 #include <bootm.h>
  30 #include <image.h>
  31
  32 #ifndef CONFIG_SYS_BOOTM_LEN
  33 /* use 8MByte as default max gunzip size */
  34 #define CONFIG_SYS_BOOTM_LEN    0x800000
  35 #endif
  36
  37 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
  38
  39 #ifndef USE_HOSTCC
  40
  41 DECLARE_GLOBAL_DATA_PTR;
  42
  43 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
  44                                    char * const argv[], bootm_headers_t *images,
  45                                    ulong *os_data, ulong *os_len);
  46
  47 #ifdef CONFIG_LMB
  48 static void boot_start_lmb(bootm_headers_t *images)
  49 {
  50         ulong           mem_start;
  51         phys_size_t     mem_size;
  52
  53         lmb_init(&images->lmb);
  54
  55         mem_start = getenv_bootm_low();
  56         mem_size = getenv_bootm_size();
  57
  58         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
  59
  60         arch_lmb_reserve(&images->lmb);
  61         board_lmb_reserve(&images->lmb);
  62 }
  63 #else
  64 #define lmb_reserve(lmb, base, size)
  65 static inline void boot_start_lmb(bootm_headers_t *images) { }
  66 #endif
  67
  68 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc,
  69                        char * const argv[])
  70 {
  71         memset((void *)&images, 0, sizeof(images));
  72         images.verify = getenv_yesno("verify");
  73
  74         boot_start_lmb(&images);
  75
  76         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
  77         images.state = BOOTM_STATE_START;
  78
  79         return 0;
  80 }
  81
  82 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
  83                          char * const argv[])
  84 {
  85         const void *os_hdr;
  86         bool ep_found = false;
  87         int ret;
  88
  89         /* get kernel image header, start address and length */
  90         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
  91                         &images, &images.os.image_start, &images.os.image_len);
  92         if (images.os.image_len == 0) {
  93                 puts("ERROR: can't get kernel image!\n");
  94                 return 1;
  95         }
  96
  97         /* get image parameters */
  98         switch (genimg_get_format(os_hdr)) {
  99 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 100         case IMAGE_FORMAT_LEGACY:
 101                 images.os.type = image_get_type(os_hdr);
 102                 images.os.comp = image_get_comp(os_hdr);
 103                 images.os.os = image_get_os(os_hdr);
 104
 105                 images.os.end = image_get_image_end(os_hdr);
 106                 images.os.load = image_get_load(os_hdr);
 107                 images.os.arch = image_get_arch(os_hdr);
 108                 break;
 109 #endif
 110 #if defined(CONFIG_FIT)
 111         case IMAGE_FORMAT_FIT:
 112                 if (fit_image_get_type(images.fit_hdr_os,
 113                                        images.fit_noffset_os,
 114                                        &images.os.type)) {
 115                         puts("Can't get image type!\n");
 116                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 117                         return 1;
 118                 }
 119
 120                 if (fit_image_get_comp(images.fit_hdr_os,
 121                                        images.fit_noffset_os,
 122                                        &images.os.comp)) {
 123                         puts("Can't get image compression!\n");
 124                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 125                         return 1;
 126                 }
 127
 128                 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os,
 129                                      &images.os.os)) {
 130                         puts("Can't get image OS!\n");
 131                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 132                         return 1;
 133                 }
 134
 135                 if (fit_image_get_arch(images.fit_hdr_os,
 136                                        images.fit_noffset_os,
 137                                        &images.os.arch)) {
 138                         puts("Can't get image ARCH!\n");
 139                         return 1;
 140                 }
 141
 142                 images.os.end = fit_get_end(images.fit_hdr_os);
 143
 144                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 145                                        &images.os.load)) {
 146                         puts("Can't get image load address!\n");
 147                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 148                         return 1;
 149                 }
 150                 break;
 151 #endif
 152 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 153         case IMAGE_FORMAT_ANDROID:
 154                 images.os.type = IH_TYPE_KERNEL;
 155                 images.os.comp = IH_COMP_NONE;
 156                 images.os.os = IH_OS_LINUX;
 157
 158                 images.os.end = android_image_get_end(os_hdr);
 159                 images.os.load = android_image_get_kload(os_hdr);
 160                 images.ep = images.os.load;
 161                 ep_found = true;
 162                 break;
 163 #endif
 164         default:
 165                 puts("ERROR: unknown image format type!\n");
 166                 return 1;
 167         }
 168
 169         /* If we have a valid setup.bin, we will use that for entry (x86) */
 170         if (images.os.arch == IH_ARCH_I386 ||
 171             images.os.arch == IH_ARCH_X86_64) {
 172                 ulong len;
 173
 174                 ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len);
 175                 if (ret < 0 && ret != -ENOENT) {
 176                         puts("Could not find a valid setup.bin for x86\n");
 177                         return 1;
 178                 }
 179                 /* Kernel entry point is the setup.bin */
 180         } else if (images.legacy_hdr_valid) {
 181                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 182 #if defined(CONFIG_FIT)
 183         } else if (images.fit_uname_os) {
 184                 int ret;
 185
 186                 ret = fit_image_get_entry(images.fit_hdr_os,
 187                                           images.fit_noffset_os, &images.ep);
 188                 if (ret) {
 189                         puts("Can't get entry point property!\n");
 190                         return 1;
 191                 }
 192 #endif
 193         } else if (!ep_found) {
 194                 puts("Could not find kernel entry point!\n");
 195                 return 1;
 196         }
 197
 198         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 199                 images.os.load = images.os.image_start;
 200                 images.ep += images.os.load;
 201         }
 202
 203         images.os.start = (ulong)os_hdr;
 204
 205         return 0;
 206 }
 207
 208 static int bootm_find_ramdisk(int flag, int argc, char * const argv[])
 209 {
 210         int ret;
 211
 212         /* find ramdisk */
 213         ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 214                                &images.rd_start, &images.rd_end);
 215         if (ret) {
 216                 puts("Ramdisk image is corrupt or invalid\n");
 217                 return 1;
 218         }
 219
 220         return 0;
 221 }
 222
 223 #if defined(CONFIG_OF_LIBFDT)
 224 static int bootm_find_fdt(int flag, int argc, char * const argv[])
 225 {
 226         int ret;
 227
 228         /* find flattened device tree */
 229         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
 230                            &images.ft_addr, &images.ft_len);
 231         if (ret) {
 232                 puts("Could not find a valid device tree\n");
 233                 return 1;
 234         }
 235
 236         set_working_fdt_addr(images.ft_addr);
 237
 238         return 0;
 239 }
 240 #endif
 241
 242 int bootm_find_ramdisk_fdt(int flag, int argc, char * const argv[])
 243 {
 244         if (bootm_find_ramdisk(flag, argc, argv))
 245                 return 1;
 246
 247 #if defined(CONFIG_OF_LIBFDT)
 248         if (bootm_find_fdt(flag, argc, argv))
 249                 return 1;
 250 #endif
 251
 252         return 0;
 253 }
 254
 255 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
 256                             char * const argv[])
 257 {
 258         if (((images.os.type == IH_TYPE_KERNEL) ||
 259              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 260              (images.os.type == IH_TYPE_MULTI)) &&
 261             (images.os.os == IH_OS_LINUX ||
 262                  images.os.os == IH_OS_VXWORKS))
 263                 return bootm_find_ramdisk_fdt(flag, argc, argv);
 264
 265         return 0;
 266 }
 267 #endif /* USE_HOSTC */
 268
 269 #if defined(CONFIG_GZIP) || defined(CONFIG_GZIP) || defined(CONFIG_BZIP2) || \
 270         defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 271 static void print_decomp_msg(const char *type_name)
 272 {
 273         printf("   Uncompressing %s ... ", type_name);
 274 }
 275
 276 static int handle_decomp_error(const char *algo, size_t size, size_t unc_len,
 277                                int ret)
 278 {
 279         if (size >= unc_len)
 280                 puts("Image too large: increase CONFIG_SYS_BOOTM_LEN\n");
 281         else
 282                 printf("%s: uncompress or overwrite error %d\n", algo, ret);
 283         puts("Must RESET board to recover\n");
 284 #ifndef USE_HOSTCC
 285         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 286 #endif
 287
 288         return BOOTM_ERR_RESET;
 289 }
 290 #endif
 291
 292 int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
 293                        void *load_buf, void *image_buf, ulong image_len,
 294                        uint unc_len, ulong *load_end)
 295 {
 296         const char *type_name = genimg_get_type_name(type);
 297
 298         *load_end = load;
 299         switch (comp) {
 300         case IH_COMP_NONE:
 301                 if (load == image_start) {
 302                         printf("   XIP %s ... ", type_name);
 303                 } else {
 304                         printf("   Loading %s ... ", type_name);
 305                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
 306                 }
 307                 *load_end = load + image_len;
 308                 break;
 309 #ifdef CONFIG_GZIP
 310         case IH_COMP_GZIP: {
 311                 int ret;
 312
 313                 print_decomp_msg(type_name);
 314                 ret = gunzip(load_buf, unc_len, image_buf, &image_len);
 315                 if (ret != 0) {
 316                         return handle_decomp_error("GUNZIP", image_len,
 317                                                    unc_len, ret);
 318                 }
 319
 320                 *load_end = load + image_len;
 321                 break;
 322         }
 323 #endif /* CONFIG_GZIP */
 324 #ifdef CONFIG_BZIP2
 325         case IH_COMP_BZIP2: {
 326                 size_t size = unc_len;
 327
 328                 print_decomp_msg(type_name);
 329                 /*
 330                  * If we've got less than 4 MB of malloc() space,
 331                  * use slower decompression algorithm which requires
 332                  * at most 2300 KB of memory.
 333                  */
 334                 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
 335                         image_buf, image_len,
 336                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 337                 if (i != BZ_OK) {
 338                         return handle_decomp_error("BUNZIP2", size, unc_len,
 339                                                    i);
 340                 }
 341
 342                 *load_end = load + unc_len;
 343                 break;
 344         }
 345 #endif /* CONFIG_BZIP2 */
 346 #ifdef CONFIG_LZMA
 347         case IH_COMP_LZMA: {
 348                 SizeT lzma_len = unc_len;
 349                 int ret;
 350
 351                 print_decomp_msg(type_name);
 352                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
 353                                                image_buf, image_len);
 354                 if (ret != SZ_OK) {
 355                         return handle_decomp_error("LZMA", lzma_len, unc_len,
 356                                                    ret);
 357                 }
 358                 unc_len = lzma_len;
 359                 *load_end = load + unc_len;
 360                 break;
 361         }
 362 #endif /* CONFIG_LZMA */
 363 #ifdef CONFIG_LZO
 364         case IH_COMP_LZO: {
 365                 size_t size = unc_len;
 366                 int ret;
 367
 368                 print_decomp_msg(type_name);
 369
 370                 ret = lzop_decompress(image_buf, image_len, load_buf, &size);
 371                 if (ret != LZO_E_OK)
 372                         return handle_decomp_error("LZO", size, unc_len, ret);
 373
 374                 *load_end = load + size;
 375                 break;
 376         }
 377 #endif /* CONFIG_LZO */
 378         default:
 379                 printf("Unimplemented compression type %d\n", comp);
 380                 return BOOTM_ERR_UNIMPLEMENTED;
 381         }
 382
 383         puts("OK\n");
 384
 385         return 0;
 386 }
 387
 388 #ifndef USE_HOSTCC
 389 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
 390                          int boot_progress)
 391 {
 392         image_info_t os = images->os;
 393         ulong load = os.load;
 394         ulong blob_start = os.start;
 395         ulong blob_end = os.end;
 396         ulong image_start = os.image_start;
 397         ulong image_len = os.image_len;
 398         bool no_overlap;
 399         void *load_buf, *image_buf;
 400         int err;
 401
 402         load_buf = map_sysmem(load, 0);
 403         image_buf = map_sysmem(os.image_start, image_len);
 404         err = bootm_decomp_image(os.comp, load, os.image_start, os.type,
 405                                  load_buf, image_buf, image_len,
 406                                  CONFIG_SYS_BOOTM_LEN, load_end);
 407         if (err) {
 408                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 409                 return err;
 410         }
 411         flush_cache(load, (*load_end - load) * sizeof(ulong));
 412
 413         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 414         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 415
 416         no_overlap = (os.comp == IH_COMP_NONE && load == image_start);
 417
 418         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 419                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 420                       blob_start, blob_end);
 421                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 422                       *load_end);
 423
 424                 /* Check what type of image this is. */
 425                 if (images->legacy_hdr_valid) {
 426                         if (image_get_type(&images->legacy_hdr_os_copy)
 427                                         == IH_TYPE_MULTI)
 428                                 puts("WARNING: legacy format multi component image overwritten\n");
 429                         return BOOTM_ERR_OVERLAP;
 430                 } else {
 431                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
 432                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 433                         return BOOTM_ERR_RESET;
 434                 }
 435         }
 436
 437         return 0;
 438 }
 439
 440 /**
 441  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
 442  *
 443  * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
 444  *      enabled)
 445  */
 446 ulong bootm_disable_interrupts(void)
 447 {
 448         ulong iflag;
 449
 450         /*
 451          * We have reached the point of no return: we are going to
 452          * overwrite all exception vector code, so we cannot easily
 453          * recover from any failures any more...
 454          */
 455         iflag = disable_interrupts();
 456 #ifdef CONFIG_NETCONSOLE
 457         /* Stop the ethernet stack if NetConsole could have left it up */
 458         eth_halt();
 459         eth_unregister(eth_get_dev());
 460 #endif
 461
 462 #if defined(CONFIG_CMD_USB)
 463         /*
 464          * turn off USB to prevent the host controller from writing to the
 465          * SDRAM while Linux is booting. This could happen (at least for OHCI
 466          * controller), because the HCCA (Host Controller Communication Area)
 467          * lies within the SDRAM and the host controller writes continously to
 468          * this area (as busmaster!). The HccaFrameNumber is for example
 469          * updated every 1 ms within the HCCA structure in SDRAM! For more
 470          * details see the OpenHCI specification.
 471          */
 472         usb_stop();
 473 #endif
 474         return iflag;
 475 }
 476
 477 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
 478
 479 #define CONSOLE_ARG     "console="
 480 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
 481
 482 static void fixup_silent_linux(void)
 483 {
 484         char *buf;
 485         const char *env_val;
 486         char *cmdline = getenv("bootargs");
 487         int want_silent;
 488
 489         /*
 490          * Only fix cmdline when requested. The environment variable can be:
 491          *
 492          *      no - we never fixup
 493          *      yes - we always fixup
 494          *      unset - we rely on the console silent flag
 495          */
 496         want_silent = getenv_yesno("silent_linux");
 497         if (want_silent == 0)
 498                 return;
 499         else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
 500                 return;
 501
 502         debug("before silent fix-up: %s\n", cmdline);
 503         if (cmdline && (cmdline[0] != '\0')) {
 504                 char *start = strstr(cmdline, CONSOLE_ARG);
 505
 506                 /* Allocate space for maximum possible new command line */
 507                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
 508                 if (!buf) {
 509                         debug("%s: out of memory\n", __func__);
 510                         return;
 511                 }
 512
 513                 if (start) {
 514                         char *end = strchr(start, ' ');
 515                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
 516
 517                         strncpy(buf, cmdline, num_start_bytes);
 518                         if (end)
 519                                 strcpy(buf + num_start_bytes, end);
 520                         else
 521                                 buf[num_start_bytes] = '\0';
 522                 } else {
 523                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
 524                 }
 525                 env_val = buf;
 526         } else {
 527                 buf = NULL;
 528                 env_val = CONSOLE_ARG;
 529         }
 530
 531         setenv("bootargs", env_val);
 532         debug("after silent fix-up: %s\n", env_val);
 533         free(buf);
 534 }
 535 #endif /* CONFIG_SILENT_CONSOLE */
 536
 537 /**
 538  * Execute selected states of the bootm command.
 539  *
 540  * Note the arguments to this state must be the first argument, Any 'bootm'
 541  * or sub-command arguments must have already been taken.
 542  *
 543  * Note that if states contains more than one flag it MUST contain
 544  * BOOTM_STATE_START, since this handles and consumes the command line args.
 545  *
 546  * Also note that aside from boot_os_fn functions and bootm_load_os no other
 547  * functions we store the return value of in 'ret' may use a negative return
 548  * value, without special handling.
 549  *
 550  * @param cmdtp         Pointer to bootm command table entry
 551  * @param flag          Command flags (CMD_FLAG_...)
 552  * @param argc          Number of subcommand arguments (0 = no arguments)
 553  * @param argv          Arguments
 554  * @param states        Mask containing states to run (BOOTM_STATE_...)
 555  * @param images        Image header information
 556  * @param boot_progress 1 to show boot progress, 0 to not do this
 557  * @return 0 if ok, something else on error. Some errors will cause this
 558  *      function to perform a reboot! If states contains BOOTM_STATE_OS_GO
 559  *      then the intent is to boot an OS, so this function will not return
 560  *      unless the image type is standalone.
 561  */
 562 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 563                     int states, bootm_headers_t *images, int boot_progress)
 564 {
 565         boot_os_fn *boot_fn;
 566         ulong iflag = 0;
 567         int ret = 0, need_boot_fn;
 568
 569         images->state |= states;
 570
 571         /*
 572          * Work through the states and see how far we get. We stop on
 573          * any error.
 574          */
 575         if (states & BOOTM_STATE_START)
 576                 ret = bootm_start(cmdtp, flag, argc, argv);
 577
 578         if (!ret && (states & BOOTM_STATE_FINDOS))
 579                 ret = bootm_find_os(cmdtp, flag, argc, argv);
 580
 581         if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
 582                 ret = bootm_find_other(cmdtp, flag, argc, argv);
 583                 argc = 0;       /* consume the args */
 584         }
 585
 586         /* Load the OS */
 587         if (!ret && (states & BOOTM_STATE_LOADOS)) {
 588                 ulong load_end;
 589
 590                 iflag = bootm_disable_interrupts();
 591                 ret = bootm_load_os(images, &load_end, 0);
 592                 if (ret == 0)
 593                         lmb_reserve(&images->lmb, images->os.load,
 594                                     (load_end - images->os.load));
 595                 else if (ret && ret != BOOTM_ERR_OVERLAP)
 596                         goto err;
 597                 else if (ret == BOOTM_ERR_OVERLAP)
 598                         ret = 0;
 599 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
 600                 if (images->os.os == IH_OS_LINUX)
 601                         fixup_silent_linux();
 602 #endif
 603         }
 604
 605         /* Relocate the ramdisk */
 606 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 607         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
 608                 ulong rd_len = images->rd_end - images->rd_start;
 609
 610                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
 611                         rd_len, &images->initrd_start, &images->initrd_end);
 612                 if (!ret) {
 613                         setenv_hex("initrd_start", images->initrd_start);
 614                         setenv_hex("initrd_end", images->initrd_end);
 615                 }
 616         }
 617 #endif
 618 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
 619         if (!ret && (states & BOOTM_STATE_FDT)) {
 620                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
 621                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
 622                                         &images->ft_len);
 623         }
 624 #endif
 625
 626         /* From now on, we need the OS boot function */
 627         if (ret)
 628                 return ret;
 629         boot_fn = bootm_os_get_boot_func(images->os.os);
 630         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
 631                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
 632                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
 633         if (boot_fn == NULL && need_boot_fn) {
 634                 if (iflag)
 635                         enable_interrupts();
 636                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 637                        genimg_get_os_name(images->os.os), images->os.os);
 638                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 639                 return 1;
 640         }
 641
 642         /* Call various other states that are not generally used */
 643         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
 644                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
 645         if (!ret && (states & BOOTM_STATE_OS_BD_T))
 646                 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
 647         if (!ret && (states & BOOTM_STATE_OS_PREP))
 648                 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
 649
 650 #ifdef CONFIG_TRACE
 651         /* Pretend to run the OS, then run a user command */
 652         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
 653                 char *cmd_list = getenv("fakegocmd");
 654
 655                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
 656                                 images, boot_fn);
 657                 if (!ret && cmd_list)
 658                         ret = run_command_list(cmd_list, -1, flag);
 659         }
 660 #endif
 661
 662         /* Check for unsupported subcommand. */
 663         if (ret) {
 664                 puts("subcommand not supported\n");
 665                 return ret;
 666         }
 667
 668         /* Now run the OS! We hope this doesn't return */
 669         if (!ret && (states & BOOTM_STATE_OS_GO))
 670                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
 671                                 images, boot_fn);
 672
 673         /* Deal with any fallout */
 674 err:
 675         if (iflag)
 676                 enable_interrupts();
 677
 678         if (ret == BOOTM_ERR_UNIMPLEMENTED)
 679                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 680         else if (ret == BOOTM_ERR_RESET)
 681                 do_reset(cmdtp, flag, argc, argv);
 682
 683         return ret;
 684 }
 685
 686 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 687 /**
 688  * image_get_kernel - verify legacy format kernel image
 689  * @img_addr: in RAM address of the legacy format image to be verified
 690  * @verify: data CRC verification flag
 691  *
 692  * image_get_kernel() verifies legacy image integrity and returns pointer to
 693  * legacy image header if image verification was completed successfully.
 694  *
 695  * returns:
 696  *     pointer to a legacy image header if valid image was found
 697  *     otherwise return NULL
 698  */
 699 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 700 {
 701         image_header_t *hdr = (image_header_t *)img_addr;
 702
 703         if (!image_check_magic(hdr)) {
 704                 puts("Bad Magic Number\n");
 705                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 706                 return NULL;
 707         }
 708         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 709
 710         if (!image_check_hcrc(hdr)) {
 711                 puts("Bad Header Checksum\n");
 712                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 713                 return NULL;
 714         }
 715
 716         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 717         image_print_contents(hdr);
 718
 719         if (verify) {
 720                 puts("   Verifying Checksum ... ");
 721                 if (!image_check_dcrc(hdr)) {
 722                         printf("Bad Data CRC\n");
 723                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 724                         return NULL;
 725                 }
 726                 puts("OK\n");
 727         }
 728         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 729
 730         if (!image_check_target_arch(hdr)) {
 731                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 732                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 733                 return NULL;
 734         }
 735         return hdr;
 736 }
 737 #endif
 738
 739 /**
 740  * boot_get_kernel - find kernel image
 741  * @os_data: pointer to a ulong variable, will hold os data start address
 742  * @os_len: pointer to a ulong variable, will hold os data length
 743  *
 744  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 745  * and locates kernel data.
 746  *
 747  * returns:
 748  *     pointer to image header if valid image was found, plus kernel start
 749  *     address and length, otherwise NULL
 750  */
 751 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 752                                    char * const argv[], bootm_headers_t *images,
 753                                    ulong *os_data, ulong *os_len)
 754 {
 755 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 756         image_header_t  *hdr;
 757 #endif
 758         ulong           img_addr;
 759         const void *buf;
 760         const char      *fit_uname_config = NULL;
 761         const char      *fit_uname_kernel = NULL;
 762 #if defined(CONFIG_FIT)
 763         int             os_noffset;
 764 #endif
 765
 766         img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0],
 767                                               &fit_uname_config,
 768                                               &fit_uname_kernel);
 769
 770         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 771
 772         /* copy from dataflash if needed */
 773         img_addr = genimg_get_image(img_addr);
 774
 775         /* check image type, for FIT images get FIT kernel node */
 776         *os_data = *os_len = 0;
 777         buf = map_sysmem(img_addr, 0);
 778         switch (genimg_get_format(buf)) {
 779 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 780         case IMAGE_FORMAT_LEGACY:
 781                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 782                        img_addr);
 783                 hdr = image_get_kernel(img_addr, images->verify);
 784                 if (!hdr)
 785                         return NULL;
 786                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 787
 788                 /* get os_data and os_len */
 789                 switch (image_get_type(hdr)) {
 790                 case IH_TYPE_KERNEL:
 791                 case IH_TYPE_KERNEL_NOLOAD:
 792                         *os_data = image_get_data(hdr);
 793                         *os_len = image_get_data_size(hdr);
 794                         break;
 795                 case IH_TYPE_MULTI:
 796                         image_multi_getimg(hdr, 0, os_data, os_len);
 797                         break;
 798                 case IH_TYPE_STANDALONE:
 799                         *os_data = image_get_data(hdr);
 800                         *os_len = image_get_data_size(hdr);
 801                         break;
 802                 default:
 803                         printf("Wrong Image Type for %s command\n",
 804                                cmdtp->name);
 805                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 806                         return NULL;
 807                 }
 808
 809                 /*
 810                  * copy image header to allow for image overwrites during
 811                  * kernel decompression.
 812                  */
 813                 memmove(&images->legacy_hdr_os_copy, hdr,
 814                         sizeof(image_header_t));
 815
 816                 /* save pointer to image header */
 817                 images->legacy_hdr_os = hdr;
 818
 819                 images->legacy_hdr_valid = 1;
 820                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 821                 break;
 822 #endif
 823 #if defined(CONFIG_FIT)
 824         case IMAGE_FORMAT_FIT:
 825                 os_noffset = fit_image_load(images, img_addr,
 826                                 &fit_uname_kernel, &fit_uname_config,
 827                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
 828                                 BOOTSTAGE_ID_FIT_KERNEL_START,
 829                                 FIT_LOAD_IGNORED, os_data, os_len);
 830                 if (os_noffset < 0)
 831                         return NULL;
 832
 833                 images->fit_hdr_os = map_sysmem(img_addr, 0);
 834                 images->fit_uname_os = fit_uname_kernel;
 835                 images->fit_uname_cfg = fit_uname_config;
 836                 images->fit_noffset_os = os_noffset;
 837                 break;
 838 #endif
 839 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 840         case IMAGE_FORMAT_ANDROID:
 841                 printf("## Booting Android Image at 0x%08lx ...\n", img_addr);
 842                 if (android_image_get_kernel(buf, images->verify,
 843                                              os_data, os_len))
 844                         return NULL;
 845                 break;
 846 #endif
 847         default:
 848                 printf("Wrong Image Format for %s command\n", cmdtp->name);
 849                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
 850                 return NULL;
 851         }
 852
 853         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
 854               *os_data, *os_len, *os_len);
 855
 856         return buf;
 857 }
 858 #else /* USE_HOSTCC */
 859
 860 void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
 861 {
 862         memmove(to, from, len);
 863 }
 864
 865 static int bootm_host_load_image(const void *fit, int req_image_type)
 866 {
 867         const char *fit_uname_config = NULL;
 868         ulong data, len;
 869         bootm_headers_t images;
 870         int noffset;
 871         ulong load_end;
 872         uint8_t image_type;
 873         uint8_t imape_comp;
 874         void *load_buf;
 875         int ret;
 876
 877         memset(&images, '\0', sizeof(images));
 878         images.verify = 1;
 879         noffset = fit_image_load(&images, (ulong)fit,
 880                 NULL, &fit_uname_config,
 881                 IH_ARCH_DEFAULT, req_image_type, -1,
 882                 FIT_LOAD_IGNORED, &data, &len);
 883         if (noffset < 0)
 884                 return noffset;
 885         if (fit_image_get_type(fit, noffset, &image_type)) {
 886                 puts("Can't get image type!\n");
 887                 return -EINVAL;
 888         }
 889
 890         if (fit_image_get_comp(fit, noffset, &imape_comp)) {
 891                 puts("Can't get image compression!\n");
 892                 return -EINVAL;
 893         }
 894
 895         /* Allow the image to expand by a factor of 4, should be safe */
 896         load_buf = malloc((1 << 20) + len * 4);
 897         ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf,
 898                                  (void *)data, len, CONFIG_SYS_BOOTM_LEN,
 899                                  &load_end);
 900         free(load_buf);
 901
 902         if (ret && ret != BOOTM_ERR_UNIMPLEMENTED)
 903                 return ret;
 904
 905         return 0;
 906 }
 907
 908 int bootm_host_load_images(const void *fit, int cfg_noffset)
 909 {
 910         static uint8_t image_types[] = {
 911                 IH_TYPE_KERNEL,
 912                 IH_TYPE_FLATDT,
 913                 IH_TYPE_RAMDISK,
 914         };
 915         int err = 0;
 916         int i;
 917
 918         for (i = 0; i < ARRAY_SIZE(image_types); i++) {
 919                 int ret;
 920
 921                 ret = bootm_host_load_image(fit, image_types[i]);
 922                 if (!err && ret && ret != -ENOENT)
 923                         err = ret;
 924         }
 925
 926         /* Return the first error we found */
 927         return err;
 928 }
 929
 930 #endif /* ndef USE_HOSTCC */