common/cmd_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
   9 /*
  10  * Boot support
  11  */
  12 #include <common.h>
  13 #include <watchdog.h>
  14 #include <command.h>
  15 #include <image.h>
  16 #include <malloc.h>
  17 #include <u-boot/zlib.h>
  18 #include <bzlib.h>
  19 #include <environment.h>
  20 #include <lmb.h>
  21 #include <linux/ctype.h>
  22 #include <asm/byteorder.h>
  23 #include <asm/io.h>
  24 #include <linux/compiler.h>
  25
  26 #if defined(CONFIG_CMD_USB)
  27 #include <usb.h>
  28 #endif
  29
  30 #ifdef CONFIG_SYS_HUSH_PARSER
  31 #include <hush.h>
  32 #endif
  33
  34 #if defined(CONFIG_OF_LIBFDT)
  35 #include <libfdt.h>
  36 #include <fdt_support.h>
  37 #endif
  38
  39 #ifdef CONFIG_LZMA
  40 #include <lzma/LzmaTypes.h>
  41 #include <lzma/LzmaDec.h>
  42 #include <lzma/LzmaTools.h>
  43 #endif /* CONFIG_LZMA */
  44
  45 #ifdef CONFIG_LZO
  46 #include <linux/lzo.h>
  47 #endif /* CONFIG_LZO */
  48
  49 DECLARE_GLOBAL_DATA_PTR;
  50
  51 #ifndef CONFIG_SYS_BOOTM_LEN
  52 #define CONFIG_SYS_BOOTM_LEN    0x800000        /* use 8MByte as default max gunzip size */
  53 #endif
  54
  55 #ifdef CONFIG_BZIP2
  56 extern void bz_internal_error(int);
  57 #endif
  58
  59 #if defined(CONFIG_CMD_IMI)
  60 static int image_info(unsigned long addr);
  61 #endif
  62
  63 #if defined(CONFIG_CMD_IMLS)
  64 #include <flash.h>
  65 #include <mtd/cfi_flash.h>
  66 extern flash_info_t flash_info[]; /* info for FLASH chips */
  67 #endif
  68
  69 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
  70 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  71 #endif
  72
  73 #include <linux/err.h>
  74 #include <nand.h>
  75
  76 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
  77 static void fixup_silent_linux(void);
  78 #endif
  79
  80 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
  81                                 char * const argv[], bootm_headers_t *images,
  82                                 ulong *os_data, ulong *os_len);
  83
  84 /*
  85  *  Continue booting an OS image; caller already has:
  86  *  - copied image header to global variable `header'
  87  *  - checked header magic number, checksums (both header & image),
  88  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
  89  *  - loaded (first part of) image to header load address,
  90  *  - disabled interrupts.
  91  *
  92  * @flag: Flags indicating what to do (BOOTM_STATE_...)
  93  * @argc: Number of arguments. Note that the arguments are shifted down
  94  *       so that 0 is the first argument not processed by U-Boot, and
  95  *       argc is adjusted accordingly. This avoids confusion as to how
  96  *       many arguments are available for the OS.
  97  * @images: Pointers to os/initrd/fdt
  98  * @return 1 on error. On success the OS boots so this function does
  99  * not return.
 100  */
 101 typedef int boot_os_fn(int flag, int argc, char * const argv[],
 102                         bootm_headers_t *images);
 103
 104 #ifdef CONFIG_BOOTM_LINUX
 105 extern boot_os_fn do_bootm_linux;
 106 #endif
 107 #ifdef CONFIG_BOOTM_NETBSD
 108 static boot_os_fn do_bootm_netbsd;
 109 #endif
 110 #if defined(CONFIG_LYNXKDI)
 111 static boot_os_fn do_bootm_lynxkdi;
 112 extern void lynxkdi_boot(image_header_t *);
 113 #endif
 114 #ifdef CONFIG_BOOTM_RTEMS
 115 static boot_os_fn do_bootm_rtems;
 116 #endif
 117 #if defined(CONFIG_BOOTM_OSE)
 118 static boot_os_fn do_bootm_ose;
 119 #endif
 120 #if defined(CONFIG_BOOTM_PLAN9)
 121 static boot_os_fn do_bootm_plan9;
 122 #endif
 123 #if defined(CONFIG_CMD_ELF)
 124 static boot_os_fn do_bootm_vxworks;
 125 static boot_os_fn do_bootm_qnxelf;
 126 int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 127 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 128 #endif
 129 #if defined(CONFIG_INTEGRITY)
 130 static boot_os_fn do_bootm_integrity;
 131 #endif
 132
 133 static boot_os_fn *boot_os[] = {
 134 #ifdef CONFIG_BOOTM_LINUX
 135         [IH_OS_LINUX] = do_bootm_linux,
 136 #endif
 137 #ifdef CONFIG_BOOTM_NETBSD
 138         [IH_OS_NETBSD] = do_bootm_netbsd,
 139 #endif
 140 #ifdef CONFIG_LYNXKDI
 141         [IH_OS_LYNXOS] = do_bootm_lynxkdi,
 142 #endif
 143 #ifdef CONFIG_BOOTM_RTEMS
 144         [IH_OS_RTEMS] = do_bootm_rtems,
 145 #endif
 146 #if defined(CONFIG_BOOTM_OSE)
 147         [IH_OS_OSE] = do_bootm_ose,
 148 #endif
 149 #if defined(CONFIG_BOOTM_PLAN9)
 150         [IH_OS_PLAN9] = do_bootm_plan9,
 151 #endif
 152 #if defined(CONFIG_CMD_ELF)
 153         [IH_OS_VXWORKS] = do_bootm_vxworks,
 154         [IH_OS_QNX] = do_bootm_qnxelf,
 155 #endif
 156 #ifdef CONFIG_INTEGRITY
 157         [IH_OS_INTEGRITY] = do_bootm_integrity,
 158 #endif
 159 };
 160
 161 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
 162
 163 /* Allow for arch specific config before we boot */
 164 static void __arch_preboot_os(void)
 165 {
 166         /* please define platform specific arch_preboot_os() */
 167 }
 168 void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
 169
 170 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
 171
 172 #ifdef CONFIG_LMB
 173 static void boot_start_lmb(bootm_headers_t *images)
 174 {
 175         ulong           mem_start;
 176         phys_size_t     mem_size;
 177
 178         lmb_init(&images->lmb);
 179
 180         mem_start = getenv_bootm_low();
 181         mem_size = getenv_bootm_size();
 182
 183         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
 184
 185         arch_lmb_reserve(&images->lmb);
 186         board_lmb_reserve(&images->lmb);
 187 }
 188 #else
 189 #define lmb_reserve(lmb, base, size)
 190 static inline void boot_start_lmb(bootm_headers_t *images) { }
 191 #endif
 192
 193 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 194 {
 195         memset((void *)&images, 0, sizeof(images));
 196         images.verify = getenv_yesno("verify");
 197
 198         boot_start_lmb(&images);
 199
 200         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
 201         images.state = BOOTM_STATE_START;
 202
 203         return 0;
 204 }
 205
 206 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
 207                          char * const argv[])
 208 {
 209         const void *os_hdr;
 210
 211         /* get kernel image header, start address and length */
 212         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
 213                         &images, &images.os.image_start, &images.os.image_len);
 214         if (images.os.image_len == 0) {
 215                 puts("ERROR: can't get kernel image!\n");
 216                 return 1;
 217         }
 218
 219         /* get image parameters */
 220         switch (genimg_get_format(os_hdr)) {
 221         case IMAGE_FORMAT_LEGACY:
 222                 images.os.type = image_get_type(os_hdr);
 223                 images.os.comp = image_get_comp(os_hdr);
 224                 images.os.os = image_get_os(os_hdr);
 225
 226                 images.os.end = image_get_image_end(os_hdr);
 227                 images.os.load = image_get_load(os_hdr);
 228                 break;
 229 #if defined(CONFIG_FIT)
 230         case IMAGE_FORMAT_FIT:
 231                 if (fit_image_get_type(images.fit_hdr_os,
 232                                         images.fit_noffset_os, &images.os.type)) {
 233                         puts("Can't get image type!\n");
 234                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 235                         return 1;
 236                 }
 237
 238                 if (fit_image_get_comp(images.fit_hdr_os,
 239                                         images.fit_noffset_os, &images.os.comp)) {
 240                         puts("Can't get image compression!\n");
 241                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 242                         return 1;
 243                 }
 244
 245                 if (fit_image_get_os(images.fit_hdr_os,
 246                                         images.fit_noffset_os, &images.os.os)) {
 247                         puts("Can't get image OS!\n");
 248                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 249                         return 1;
 250                 }
 251
 252                 images.os.end = fit_get_end(images.fit_hdr_os);
 253
 254                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 255                                         &images.os.load)) {
 256                         puts("Can't get image load address!\n");
 257                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 258                         return 1;
 259                 }
 260                 break;
 261 #endif
 262         default:
 263                 puts("ERROR: unknown image format type!\n");
 264                 return 1;
 265         }
 266
 267         /* find kernel entry point */
 268         if (images.legacy_hdr_valid) {
 269                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 270 #if defined(CONFIG_FIT)
 271         } else if (images.fit_uname_os) {
 272                 int ret;
 273
 274                 ret = fit_image_get_entry(images.fit_hdr_os,
 275                                           images.fit_noffset_os, &images.ep);
 276                 if (ret) {
 277                         puts("Can't get entry point property!\n");
 278                         return 1;
 279                 }
 280 #endif
 281         } else {
 282                 puts("Could not find kernel entry point!\n");
 283                 return 1;
 284         }
 285
 286         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 287                 images.os.load = images.os.image_start;
 288                 images.ep += images.os.load;
 289         }
 290
 291         images.os.start = (ulong)os_hdr;
 292
 293         return 0;
 294 }
 295
 296 static int bootm_find_ramdisk(int flag, int argc, char * const argv[])
 297 {
 298         int ret;
 299
 300         /* find ramdisk */
 301         ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 302                                &images.rd_start, &images.rd_end);
 303         if (ret) {
 304                 puts("Ramdisk image is corrupt or invalid\n");
 305                 return 1;
 306         }
 307
 308         return 0;
 309 }
 310
 311 #if defined(CONFIG_OF_LIBFDT)
 312 static int bootm_find_fdt(int flag, int argc, char * const argv[])
 313 {
 314         int ret;
 315
 316         /* find flattened device tree */
 317         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
 318                            &images.ft_addr, &images.ft_len);
 319         if (ret) {
 320                 puts("Could not find a valid device tree\n");
 321                 return 1;
 322         }
 323
 324         set_working_fdt_addr(images.ft_addr);
 325
 326         return 0;
 327 }
 328 #endif
 329
 330 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
 331                             char * const argv[])
 332 {
 333         if (((images.os.type == IH_TYPE_KERNEL) ||
 334              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 335              (images.os.type == IH_TYPE_MULTI)) &&
 336             (images.os.os == IH_OS_LINUX)) {
 337                 if (bootm_find_ramdisk(flag, argc, argv))
 338                         return 1;
 339
 340 #if defined(CONFIG_OF_LIBFDT)
 341                 if (bootm_find_fdt(flag, argc, argv))
 342                         return 1;
 343 #endif
 344         }
 345
 346         return 0;
 347 }
 348
 349 #define BOOTM_ERR_RESET         -1
 350 #define BOOTM_ERR_OVERLAP       -2
 351 #define BOOTM_ERR_UNIMPLEMENTED -3
 352 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
 353                 int boot_progress)
 354 {
 355         image_info_t os = images->os;
 356         uint8_t comp = os.comp;
 357         ulong load = os.load;
 358         ulong blob_start = os.start;
 359         ulong blob_end = os.end;
 360         ulong image_start = os.image_start;
 361         ulong image_len = os.image_len;
 362         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 363         int no_overlap = 0;
 364         void *load_buf, *image_buf;
 365 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 366         int ret;
 367 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 368
 369         const char *type_name = genimg_get_type_name(os.type);
 370
 371         load_buf = map_sysmem(load, image_len);
 372         image_buf = map_sysmem(image_start, image_len);
 373         switch (comp) {
 374         case IH_COMP_NONE:
 375                 if (load == blob_start || load == image_start) {
 376                         printf("   XIP %s ... ", type_name);
 377                         no_overlap = 1;
 378                 } else {
 379                         printf("   Loading %s ... ", type_name);
 380                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
 381                 }
 382                 *load_end = load + image_len;
 383                 break;
 384 #ifdef CONFIG_GZIP
 385         case IH_COMP_GZIP:
 386                 printf("   Uncompressing %s ... ", type_name);
 387                 if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) {
 388                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 389                                 "error - must RESET board to recover\n");
 390                         if (boot_progress)
 391                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 392                         return BOOTM_ERR_RESET;
 393                 }
 394
 395                 *load_end = load + image_len;
 396                 break;
 397 #endif /* CONFIG_GZIP */
 398 #ifdef CONFIG_BZIP2
 399         case IH_COMP_BZIP2:
 400                 printf("   Uncompressing %s ... ", type_name);
 401                 /*
 402                  * If we've got less than 4 MB of malloc() space,
 403                  * use slower decompression algorithm which requires
 404                  * at most 2300 KB of memory.
 405                  */
 406                 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
 407                         image_buf, image_len,
 408                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 409                 if (i != BZ_OK) {
 410                         printf("BUNZIP2: uncompress or overwrite error %d "
 411                                 "- must RESET board to recover\n", i);
 412                         if (boot_progress)
 413                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 414                         return BOOTM_ERR_RESET;
 415                 }
 416
 417                 *load_end = load + unc_len;
 418                 break;
 419 #endif /* CONFIG_BZIP2 */
 420 #ifdef CONFIG_LZMA
 421         case IH_COMP_LZMA: {
 422                 SizeT lzma_len = unc_len;
 423                 printf("   Uncompressing %s ... ", type_name);
 424
 425                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
 426                                                image_buf, image_len);
 427                 unc_len = lzma_len;
 428                 if (ret != SZ_OK) {
 429                         printf("LZMA: uncompress or overwrite error %d "
 430                                 "- must RESET board to recover\n", ret);
 431                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 432                         return BOOTM_ERR_RESET;
 433                 }
 434                 *load_end = load + unc_len;
 435                 break;
 436         }
 437 #endif /* CONFIG_LZMA */
 438 #ifdef CONFIG_LZO
 439         case IH_COMP_LZO:
 440                 printf("   Uncompressing %s ... ", type_name);
 441
 442                 ret = lzop_decompress(image_buf, image_len, load_buf,
 443                                       &unc_len);
 444                 if (ret != LZO_E_OK) {
 445                         printf("LZO: uncompress or overwrite error %d "
 446                               "- must RESET board to recover\n", ret);
 447                         if (boot_progress)
 448                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 449                         return BOOTM_ERR_RESET;
 450                 }
 451
 452                 *load_end = load + unc_len;
 453                 break;
 454 #endif /* CONFIG_LZO */
 455         default:
 456                 printf("Unimplemented compression type %d\n", comp);
 457                 return BOOTM_ERR_UNIMPLEMENTED;
 458         }
 459
 460         flush_cache(load, (*load_end - load) * sizeof(ulong));
 461
 462         puts("OK\n");
 463         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 464         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 465
 466         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 467                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 468                         blob_start, blob_end);
 469                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 470                         *load_end);
 471
 472                 /* Check what type of image this is. */
 473                 if (images->legacy_hdr_valid) {
 474                         if (image_get_type(&images->legacy_hdr_os_copy)
 475                                         == IH_TYPE_MULTI)
 476                                 puts("WARNING: legacy format multi component image overwritten\n");
 477                         return BOOTM_ERR_OVERLAP;
 478                 } else {
 479                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
 480                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 481                         return BOOTM_ERR_RESET;
 482                 }
 483         }
 484
 485         return 0;
 486 }
 487
 488 static int bootm_start_standalone(int argc, char * const argv[])
 489 {
 490         char  *s;
 491         int   (*appl)(int, char * const []);
 492
 493         /* Don't start if "autostart" is set to "no" */
 494         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 495                 setenv_hex("filesize", images.os.image_len);
 496                 return 0;
 497         }
 498         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
 499         (*appl)(argc, argv);
 500         return 0;
 501 }
 502
 503 /* we overload the cmd field with our state machine info instead of a
 504  * function pointer */
 505 static cmd_tbl_t cmd_bootm_sub[] = {
 506         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 507         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 508 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 509         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 510 #endif
 511 #ifdef CONFIG_OF_LIBFDT
 512         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 513 #endif
 514         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 515         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 516         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 517         U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""),
 518         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 519 };
 520
 521 static int boot_selected_os(int argc, char * const argv[], int state,
 522                 bootm_headers_t *images, boot_os_fn *boot_fn)
 523 {
 524         if (images->os.type == IH_TYPE_STANDALONE) {
 525                 /* This may return when 'autostart' is 'no' */
 526                 bootm_start_standalone(argc, argv);
 527                 return 0;
 528         }
 529         arch_preboot_os();
 530         boot_fn(state, argc, argv, images);
 531         if (state == BOOTM_STATE_OS_FAKE_GO) /* We expect to return */
 532                 return 0;
 533         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
 534 #ifdef DEBUG
 535         puts("\n## Control returned to monitor - resetting...\n");
 536 #endif
 537         return BOOTM_ERR_RESET;
 538 }
 539
 540 /**
 541  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
 542  *
 543  * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
 544  *      enabled)
 545  */
 546 static ulong bootm_disable_interrupts(void)
 547 {
 548         ulong iflag;
 549
 550         /*
 551          * We have reached the point of no return: we are going to
 552          * overwrite all exception vector code, so we cannot easily
 553          * recover from any failures any more...
 554          */
 555         iflag = disable_interrupts();
 556 #ifdef CONFIG_NETCONSOLE
 557         /* Stop the ethernet stack if NetConsole could have left it up */
 558         eth_halt();
 559 #endif
 560
 561 #if defined(CONFIG_CMD_USB)
 562         /*
 563          * turn off USB to prevent the host controller from writing to the
 564          * SDRAM while Linux is booting. This could happen (at least for OHCI
 565          * controller), because the HCCA (Host Controller Communication Area)
 566          * lies within the SDRAM and the host controller writes continously to
 567          * this area (as busmaster!). The HccaFrameNumber is for example
 568          * updated every 1 ms within the HCCA structure in SDRAM! For more
 569          * details see the OpenHCI specification.
 570          */
 571         usb_stop();
 572 #endif
 573         return iflag;
 574 }
 575
 576 /**
 577  * Execute selected states of the bootm command.
 578  *
 579  * Note the arguments to this state must be the first argument, Any 'bootm'
 580  * or sub-command arguments must have already been taken.
 581  *
 582  * Note that if states contains more than one flag it MUST contain
 583  * BOOTM_STATE_START, since this handles and consumes the command line args.
 584  *
 585  * Also note that aside from boot_os_fn functions and bootm_load_os no other
 586  * functions we store the return value of in 'ret' may use a negative return
 587  * value, without special handling.
 588  *
 589  * @param cmdtp         Pointer to bootm command table entry
 590  * @param flag          Command flags (CMD_FLAG_...)
 591  * @param argc          Number of subcommand arguments (0 = no arguments)
 592  * @param argv          Arguments
 593  * @param states        Mask containing states to run (BOOTM_STATE_...)
 594  * @param images        Image header information
 595  * @param boot_progress 1 to show boot progress, 0 to not do this
 596  * @return 0 if ok, something else on error. Some errors will cause this
 597  *      function to perform a reboot! If states contains BOOTM_STATE_OS_GO
 598  *      then the intent is to boot an OS, so this function will not return
 599  *      unless the image type is standalone.
 600  */
 601 static int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc,
 602                 char * const argv[], int states, bootm_headers_t *images,
 603                 int boot_progress)
 604 {
 605         boot_os_fn *boot_fn;
 606         ulong iflag = 0;
 607         int ret = 0, need_boot_fn;
 608
 609         images->state |= states;
 610
 611         /*
 612          * Work through the states and see how far we get. We stop on
 613          * any error.
 614          */
 615         if (states & BOOTM_STATE_START)
 616                 ret = bootm_start(cmdtp, flag, argc, argv);
 617
 618         if (!ret && (states & BOOTM_STATE_FINDOS))
 619                 ret = bootm_find_os(cmdtp, flag, argc, argv);
 620
 621         if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
 622                 ret = bootm_find_other(cmdtp, flag, argc, argv);
 623                 argc = 0;       /* consume the args */
 624         }
 625
 626         /* Load the OS */
 627         if (!ret && (states & BOOTM_STATE_LOADOS)) {
 628                 ulong load_end;
 629
 630                 iflag = bootm_disable_interrupts();
 631                 ret = bootm_load_os(images, &load_end, 0);
 632                 if (ret == 0)
 633                         lmb_reserve(&images->lmb, images->os.load,
 634                                     (load_end - images->os.load));
 635                 else if (ret && ret != BOOTM_ERR_OVERLAP)
 636                         goto err;
 637                 else if (ret == BOOTM_ERR_OVERLAP)
 638                         ret = 0;
 639 #ifdef CONFIG_SILENT_CONSOLE
 640                 if (images->os.os == IH_OS_LINUX)
 641                         fixup_silent_linux();
 642 #endif
 643         }
 644
 645         /* Relocate the ramdisk */
 646 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 647         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
 648                 ulong rd_len = images->rd_end - images->rd_start;
 649
 650                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
 651                         rd_len, &images->initrd_start, &images->initrd_end);
 652                 if (!ret) {
 653                         setenv_hex("initrd_start", images->initrd_start);
 654                         setenv_hex("initrd_end", images->initrd_end);
 655                 }
 656         }
 657 #endif
 658 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
 659         if (!ret && (states & BOOTM_STATE_FDT)) {
 660                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
 661                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
 662                                         &images->ft_len);
 663         }
 664 #endif
 665
 666         /* From now on, we need the OS boot function */
 667         if (ret)
 668                 return ret;
 669         boot_fn = boot_os[images->os.os];
 670         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
 671                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
 672                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
 673         if (boot_fn == NULL && need_boot_fn) {
 674                 if (iflag)
 675                         enable_interrupts();
 676                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 677                        genimg_get_os_name(images->os.os), images->os.os);
 678                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 679                 return 1;
 680         }
 681
 682         /* Call various other states that are not generally used */
 683         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
 684                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
 685         if (!ret && (states & BOOTM_STATE_OS_BD_T))
 686                 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
 687         if (!ret && (states & BOOTM_STATE_OS_PREP))
 688                 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
 689
 690 #ifdef CONFIG_TRACE
 691         /* Pretend to run the OS, then run a user command */
 692         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
 693                 char *cmd_list = getenv("fakegocmd");
 694
 695                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
 696                                 images, boot_fn);
 697                 if (!ret && cmd_list)
 698                         ret = run_command_list(cmd_list, -1, flag);
 699         }
 700 #endif
 701
 702         /* Check for unsupported subcommand. */
 703         if (ret) {
 704                 puts("subcommand not supported\n");
 705                 return ret;
 706         }
 707
 708         /* Now run the OS! We hope this doesn't return */
 709         if (!ret && (states & BOOTM_STATE_OS_GO))
 710                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
 711                                 images, boot_fn);
 712
 713         /* Deal with any fallout */
 714 err:
 715         if (iflag)
 716                 enable_interrupts();
 717
 718         if (ret == BOOTM_ERR_UNIMPLEMENTED)
 719                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 720         else if (ret == BOOTM_ERR_RESET)
 721                 do_reset(cmdtp, flag, argc, argv);
 722
 723         return ret;
 724 }
 725
 726 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 727                         char * const argv[])
 728 {
 729         int ret = 0;
 730         long state;
 731         cmd_tbl_t *c;
 732
 733         c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 734         argc--; argv++;
 735
 736         if (c) {
 737                 state = (long)c->cmd;
 738                 if (state == BOOTM_STATE_START)
 739                         state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
 740         } else {
 741                 /* Unrecognized command */
 742                 return CMD_RET_USAGE;
 743         }
 744
 745         if (state != BOOTM_STATE_START && images.state >= state) {
 746                 printf("Trying to execute a command out of order\n");
 747                 return CMD_RET_USAGE;
 748         }
 749
 750         ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
 751
 752         return ret;
 753 }
 754
 755 /*******************************************************************/
 756 /* bootm - boot application image from image in memory */
 757 /*******************************************************************/
 758
 759 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 760 {
 761 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 762         static int relocated = 0;
 763
 764         if (!relocated) {
 765                 int i;
 766
 767                 /* relocate boot function table */
 768                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
 769                         if (boot_os[i] != NULL)
 770                                 boot_os[i] += gd->reloc_off;
 771
 772                 /* relocate names of sub-command table */
 773                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
 774                         cmd_bootm_sub[i].name += gd->reloc_off;
 775
 776                 relocated = 1;
 777         }
 778 #endif
 779
 780         /* determine if we have a sub command */
 781         argc--; argv++;
 782         if (argc > 0) {
 783                 char *endp;
 784
 785                 simple_strtoul(argv[0], &endp, 16);
 786                 /* endp pointing to NULL means that argv[0] was just a
 787                  * valid number, pass it along to the normal bootm processing
 788                  *
 789                  * If endp is ':' or '#' assume a FIT identifier so pass
 790                  * along for normal processing.
 791                  *
 792                  * Right now we assume the first arg should never be '-'
 793                  */
 794                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 795                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 796         }
 797
 798         return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
 799                 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
 800                 BOOTM_STATE_LOADOS | BOOTM_STATE_OS_PREP |
 801                 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO, &images, 1);
 802 }
 803
 804 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
 805 {
 806         const char *ep = getenv("autostart");
 807
 808         if (ep && !strcmp(ep, "yes")) {
 809                 char *local_args[2];
 810                 local_args[0] = (char *)cmd;
 811                 local_args[1] = NULL;
 812                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
 813                 return do_bootm(cmdtp, 0, 1, local_args);
 814         }
 815
 816         return 0;
 817 }
 818
 819 /**
 820  * image_get_kernel - verify legacy format kernel image
 821  * @img_addr: in RAM address of the legacy format image to be verified
 822  * @verify: data CRC verification flag
 823  *
 824  * image_get_kernel() verifies legacy image integrity and returns pointer to
 825  * legacy image header if image verification was completed successfully.
 826  *
 827  * returns:
 828  *     pointer to a legacy image header if valid image was found
 829  *     otherwise return NULL
 830  */
 831 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 832 {
 833         image_header_t *hdr = (image_header_t *)img_addr;
 834
 835         if (!image_check_magic(hdr)) {
 836                 puts("Bad Magic Number\n");
 837                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 838                 return NULL;
 839         }
 840         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 841
 842         if (!image_check_hcrc(hdr)) {
 843                 puts("Bad Header Checksum\n");
 844                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 845                 return NULL;
 846         }
 847
 848         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 849         image_print_contents(hdr);
 850
 851         if (verify) {
 852                 puts("   Verifying Checksum ... ");
 853                 if (!image_check_dcrc(hdr)) {
 854                         printf("Bad Data CRC\n");
 855                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 856                         return NULL;
 857                 }
 858                 puts("OK\n");
 859         }
 860         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 861
 862         if (!image_check_target_arch(hdr)) {
 863                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 864                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 865                 return NULL;
 866         }
 867         return hdr;
 868 }
 869
 870 /**
 871  * boot_get_kernel - find kernel image
 872  * @os_data: pointer to a ulong variable, will hold os data start address
 873  * @os_len: pointer to a ulong variable, will hold os data length
 874  *
 875  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 876  * and locates kernel data.
 877  *
 878  * returns:
 879  *     pointer to image header if valid image was found, plus kernel start
 880  *     address and length, otherwise NULL
 881  */
 882 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 883                 char * const argv[], bootm_headers_t *images, ulong *os_data,
 884                 ulong *os_len)
 885 {
 886         image_header_t  *hdr;
 887         ulong           img_addr;
 888         const void *buf;
 889 #if defined(CONFIG_FIT)
 890         const char      *fit_uname_config = NULL;
 891         const char      *fit_uname_kernel = NULL;
 892         int             os_noffset;
 893 #endif
 894
 895         /* find out kernel image address */
 896         if (argc < 1) {
 897                 img_addr = load_addr;
 898                 debug("*  kernel: default image load address = 0x%08lx\n",
 899                                 load_addr);
 900 #if defined(CONFIG_FIT)
 901         } else if (fit_parse_conf(argv[0], load_addr, &img_addr,
 902                                                         &fit_uname_config)) {
 903                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
 904                                 fit_uname_config, img_addr);
 905         } else if (fit_parse_subimage(argv[0], load_addr, &img_addr,
 906                                                         &fit_uname_kernel)) {
 907                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
 908                                 fit_uname_kernel, img_addr);
 909 #endif
 910         } else {
 911                 img_addr = simple_strtoul(argv[0], NULL, 16);
 912                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 913         }
 914
 915         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 916
 917         /* copy from dataflash if needed */
 918         img_addr = genimg_get_image(img_addr);
 919
 920         /* check image type, for FIT images get FIT kernel node */
 921         *os_data = *os_len = 0;
 922         buf = map_sysmem(img_addr, 0);
 923         switch (genimg_get_format(buf)) {
 924         case IMAGE_FORMAT_LEGACY:
 925                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 926                                 img_addr);
 927                 hdr = image_get_kernel(img_addr, images->verify);
 928                 if (!hdr)
 929                         return NULL;
 930                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 931
 932                 /* get os_data and os_len */
 933                 switch (image_get_type(hdr)) {
 934                 case IH_TYPE_KERNEL:
 935                 case IH_TYPE_KERNEL_NOLOAD:
 936                         *os_data = image_get_data(hdr);
 937                         *os_len = image_get_data_size(hdr);
 938                         break;
 939                 case IH_TYPE_MULTI:
 940                         image_multi_getimg(hdr, 0, os_data, os_len);
 941                         break;
 942                 case IH_TYPE_STANDALONE:
 943                         *os_data = image_get_data(hdr);
 944                         *os_len = image_get_data_size(hdr);
 945                         break;
 946                 default:
 947                         printf("Wrong Image Type for %s command\n",
 948                                 cmdtp->name);
 949                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 950                         return NULL;
 951                 }
 952
 953                 /*
 954                  * copy image header to allow for image overwrites during
 955                  * kernel decompression.
 956                  */
 957                 memmove(&images->legacy_hdr_os_copy, hdr,
 958                         sizeof(image_header_t));
 959
 960                 /* save pointer to image header */
 961                 images->legacy_hdr_os = hdr;
 962
 963                 images->legacy_hdr_valid = 1;
 964                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 965                 break;
 966 #if defined(CONFIG_FIT)
 967         case IMAGE_FORMAT_FIT:
 968                 os_noffset = fit_image_load(images, FIT_KERNEL_PROP,
 969                                 img_addr,
 970                                 &fit_uname_kernel, &fit_uname_config,
 971                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
 972                                 BOOTSTAGE_ID_FIT_KERNEL_START,
 973                                 FIT_LOAD_IGNORED, os_data, os_len);
 974                 if (os_noffset < 0)
 975                         return NULL;
 976
 977                 images->fit_hdr_os = map_sysmem(img_addr, 0);
 978                 images->fit_uname_os = fit_uname_kernel;
 979                 images->fit_uname_cfg = fit_uname_config;
 980                 images->fit_noffset_os = os_noffset;
 981                 break;
 982 #endif
 983         default:
 984                 printf("Wrong Image Format for %s command\n", cmdtp->name);
 985                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
 986                 return NULL;
 987         }
 988
 989         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
 990                         *os_data, *os_len, *os_len);
 991
 992         return buf;
 993 }
 994
 995 #ifdef CONFIG_SYS_LONGHELP
 996 static char bootm_help_text[] =
 997         "[addr [arg ...]]\n    - boot application image stored in memory\n"
 998         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
 999         "\t'arg' can be the address of an initrd image\n"
1000 #if defined(CONFIG_OF_LIBFDT)
1001         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1002         "\ta third argument is required which is the address of the\n"
1003         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1004         "\tuse a '-' for the second argument. If you do not pass a third\n"
1005         "\ta bd_info struct will be passed instead\n"
1006 #endif
1007 #if defined(CONFIG_FIT)
1008         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1009         "\tmust be extened to include component or configuration unit name:\n"
1010         "\taddr:<subimg_uname> - direct component image specification\n"
1011         "\taddr#<conf_uname>   - configuration specification\n"
1012         "\tUse iminfo command to get the list of existing component\n"
1013         "\timages and configurations.\n"
1014 #endif
1015         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1016         "must be\n"
1017         "issued in the order below (it's ok to not issue all sub-commands):\n"
1018         "\tstart [addr [arg ...]]\n"
1019         "\tloados  - load OS image\n"
1020 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
1021         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1022 #endif
1023 #if defined(CONFIG_OF_LIBFDT)
1024         "\tfdt     - relocate flat device tree\n"
1025 #endif
1026         "\tcmdline - OS specific command line processing/setup\n"
1027         "\tbdt     - OS specific bd_t processing\n"
1028         "\tprep    - OS specific prep before relocation or go\n"
1029         "\tgo      - start OS";
1030 #endif
1031
1032 U_BOOT_CMD(
1033         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1034         "boot application image from memory", bootm_help_text
1035 );
1036
1037 /*******************************************************************/
1038 /* bootd - boot default image */
1039 /*******************************************************************/
1040 #if defined(CONFIG_CMD_BOOTD)
1041 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1042 {
1043         int rcode = 0;
1044
1045         if (run_command(getenv("bootcmd"), flag) < 0)
1046                 rcode = 1;
1047         return rcode;
1048 }
1049
1050 U_BOOT_CMD(
1051         boot,   1,      1,      do_bootd,
1052         "boot default, i.e., run 'bootcmd'",
1053         ""
1054 );
1055
1056 /* keep old command name "bootd" for backward compatibility */
1057 U_BOOT_CMD(
1058         bootd, 1,       1,      do_bootd,
1059         "boot default, i.e., run 'bootcmd'",
1060         ""
1061 );
1062
1063 #endif
1064
1065
1066 /*******************************************************************/
1067 /* iminfo - print header info for a requested image */
1068 /*******************************************************************/
1069 #if defined(CONFIG_CMD_IMI)
1070 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1071 {
1072         int     arg;
1073         ulong   addr;
1074         int     rcode = 0;
1075
1076         if (argc < 2) {
1077                 return image_info(load_addr);
1078         }
1079
1080         for (arg = 1; arg < argc; ++arg) {
1081                 addr = simple_strtoul(argv[arg], NULL, 16);
1082                 if (image_info(addr) != 0)
1083                         rcode = 1;
1084         }
1085         return rcode;
1086 }
1087
1088 static int image_info(ulong addr)
1089 {
1090         void *hdr = (void *)addr;
1091
1092         printf("\n## Checking Image at %08lx ...\n", addr);
1093
1094         switch (genimg_get_format(hdr)) {
1095         case IMAGE_FORMAT_LEGACY:
1096                 puts("   Legacy image found\n");
1097                 if (!image_check_magic(hdr)) {
1098                         puts("   Bad Magic Number\n");
1099                         return 1;
1100                 }
1101
1102                 if (!image_check_hcrc(hdr)) {
1103                         puts("   Bad Header Checksum\n");
1104                         return 1;
1105                 }
1106
1107                 image_print_contents(hdr);
1108
1109                 puts("   Verifying Checksum ... ");
1110                 if (!image_check_dcrc(hdr)) {
1111                         puts("   Bad Data CRC\n");
1112                         return 1;
1113                 }
1114                 puts("OK\n");
1115                 return 0;
1116 #if defined(CONFIG_FIT)
1117         case IMAGE_FORMAT_FIT:
1118                 puts("   FIT image found\n");
1119
1120                 if (!fit_check_format(hdr)) {
1121                         puts("Bad FIT image format!\n");
1122                         return 1;
1123                 }
1124
1125                 fit_print_contents(hdr);
1126
1127                 if (!fit_all_image_verify(hdr)) {
1128                         puts("Bad hash in FIT image!\n");
1129                         return 1;
1130                 }
1131
1132                 return 0;
1133 #endif
1134         default:
1135                 puts("Unknown image format!\n");
1136                 break;
1137         }
1138
1139         return 1;
1140 }
1141
1142 U_BOOT_CMD(
1143         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1144         "print header information for application image",
1145         "addr [addr ...]\n"
1146         "    - print header information for application image starting at\n"
1147         "      address 'addr' in memory; this includes verification of the\n"
1148         "      image contents (magic number, header and payload checksums)"
1149 );
1150 #endif
1151
1152
1153 /*******************************************************************/
1154 /* imls - list all images found in flash */
1155 /*******************************************************************/
1156 #if defined(CONFIG_CMD_IMLS)
1157 static int do_imls_nor(void)
1158 {
1159         flash_info_t *info;
1160         int i, j;
1161         void *hdr;
1162
1163         for (i = 0, info = &flash_info[0];
1164                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1165
1166                 if (info->flash_id == FLASH_UNKNOWN)
1167                         goto next_bank;
1168                 for (j = 0; j < info->sector_count; ++j) {
1169
1170                         hdr = (void *)info->start[j];
1171                         if (!hdr)
1172                                 goto next_sector;
1173
1174                         switch (genimg_get_format(hdr)) {
1175                         case IMAGE_FORMAT_LEGACY:
1176                                 if (!image_check_hcrc(hdr))
1177                                         goto next_sector;
1178
1179                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1180                                 image_print_contents(hdr);
1181
1182                                 puts("   Verifying Checksum ... ");
1183                                 if (!image_check_dcrc(hdr)) {
1184                                         puts("Bad Data CRC\n");
1185                                 } else {
1186                                         puts("OK\n");
1187                                 }
1188                                 break;
1189 #if defined(CONFIG_FIT)
1190                         case IMAGE_FORMAT_FIT:
1191                                 if (!fit_check_format(hdr))
1192                                         goto next_sector;
1193
1194                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1195                                 fit_print_contents(hdr);
1196                                 break;
1197 #endif
1198                         default:
1199                                 goto next_sector;
1200                         }
1201
1202 next_sector:            ;
1203                 }
1204 next_bank:      ;
1205         }
1206         return 0;
1207 }
1208 #endif
1209
1210 #if defined(CONFIG_CMD_IMLS_NAND)
1211 static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
1212                 size_t len)
1213 {
1214         void *imgdata;
1215         int ret;
1216
1217         imgdata = malloc(len);
1218         if (!imgdata) {
1219                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
1220                                 nand_dev, off);
1221                 printf("   Low memory(cannot allocate memory for image)\n");
1222                 return -ENOMEM;
1223         }
1224
1225         ret = nand_read_skip_bad(nand, off, &len,
1226                         imgdata);
1227         if (ret < 0 && ret != -EUCLEAN) {
1228                 free(imgdata);
1229                 return ret;
1230         }
1231
1232         if (!image_check_hcrc(imgdata)) {
1233                 free(imgdata);
1234                 return 0;
1235         }
1236
1237         printf("Legacy Image at NAND device %d offset %08llX:\n",
1238                         nand_dev, off);
1239         image_print_contents(imgdata);
1240
1241         puts("   Verifying Checksum ... ");
1242         if (!image_check_dcrc(imgdata))
1243                 puts("Bad Data CRC\n");
1244         else
1245                 puts("OK\n");
1246
1247         free(imgdata);
1248
1249         return 0;
1250 }
1251
1252 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
1253                 size_t len)
1254 {
1255         void *imgdata;
1256         int ret;
1257
1258         imgdata = malloc(len);
1259         if (!imgdata) {
1260                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
1261                                 nand_dev, off);
1262                 printf("   Low memory(cannot allocate memory for image)\n");
1263                 return -ENOMEM;
1264         }
1265
1266         ret = nand_read_skip_bad(nand, off, &len,
1267                         imgdata);
1268         if (ret < 0 && ret != -EUCLEAN) {
1269                 free(imgdata);
1270                 return ret;
1271         }
1272
1273         if (!fit_check_format(imgdata)) {
1274                 free(imgdata);
1275                 return 0;
1276         }
1277
1278         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
1279
1280         fit_print_contents(imgdata);
1281         free(imgdata);
1282
1283         return 0;
1284 }
1285
1286 static int do_imls_nand(void)
1287 {
1288         nand_info_t *nand;
1289         int nand_dev = nand_curr_device;
1290         size_t len;
1291         loff_t off;
1292         u32 buffer[16];
1293
1294         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
1295                 puts("\nNo NAND devices available\n");
1296                 return -ENODEV;
1297         }
1298
1299         printf("\n");
1300
1301         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
1302                 nand = &nand_info[nand_dev];
1303                 if (!nand->name || !nand->size)
1304                         continue;
1305
1306                 for (off = 0; off < nand->size; off += nand->erasesize) {
1307                         const image_header_t *header;
1308                         int ret;
1309
1310                         if (nand_block_isbad(nand, off))
1311                                 continue;
1312
1313                         len = sizeof(buffer);
1314
1315                         ret = nand_read(nand, off, &len, (u8 *)buffer);
1316                         if (ret < 0 && ret != -EUCLEAN) {
1317                                 printf("NAND read error %d at offset %08llX\n",
1318                                                 ret, off);
1319                                 continue;
1320                         }
1321
1322                         switch (genimg_get_format(buffer)) {
1323                         case IMAGE_FORMAT_LEGACY:
1324                                 header = (const image_header_t *)buffer;
1325
1326                                 len = image_get_image_size(header);
1327                                 nand_imls_legacyimage(nand, nand_dev, off, len);
1328                                 break;
1329 #if defined(CONFIG_FIT)
1330                         case IMAGE_FORMAT_FIT:
1331                                 len = fit_get_size(buffer);
1332                                 nand_imls_fitimage(nand, nand_dev, off, len);
1333                                 break;
1334 #endif
1335                         }
1336                 }
1337         }
1338
1339         return 0;
1340 }
1341 #endif
1342
1343 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
1344 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1345 {
1346         int ret_nor = 0, ret_nand = 0;
1347
1348 #if defined(CONFIG_CMD_IMLS)
1349         ret_nor = do_imls_nor();
1350 #endif
1351
1352 #if defined(CONFIG_CMD_IMLS_NAND)
1353         ret_nand = do_imls_nand();
1354 #endif
1355
1356         if (ret_nor)
1357                 return ret_nor;
1358
1359         if (ret_nand)
1360                 return ret_nand;
1361
1362         return (0);
1363 }
1364
1365 U_BOOT_CMD(
1366         imls,   1,              1,      do_imls,
1367         "list all images found in flash",
1368         "\n"
1369         "    - Prints information about all images found at sector/block\n"
1370         "      boundaries in nor/nand flash."
1371 );
1372 #endif
1373
1374 /*******************************************************************/
1375 /* helper routines */
1376 /*******************************************************************/
1377 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1378
1379 #define CONSOLE_ARG     "console="
1380 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
1381
1382 static void fixup_silent_linux(void)
1383 {
1384         char *buf;
1385         const char *env_val;
1386         char *cmdline = getenv("bootargs");
1387
1388         /* Only fix cmdline when requested */
1389         if (!(gd->flags & GD_FLG_SILENT))
1390                 return;
1391
1392         debug("before silent fix-up: %s\n", cmdline);
1393         if (cmdline && (cmdline[0] != '\0')) {
1394                 char *start = strstr(cmdline, CONSOLE_ARG);
1395
1396                 /* Allocate space for maximum possible new command line */
1397                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
1398                 if (!buf) {
1399                         debug("%s: out of memory\n", __func__);
1400                         return;
1401                 }
1402
1403                 if (start) {
1404                         char *end = strchr(start, ' ');
1405                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
1406
1407                         strncpy(buf, cmdline, num_start_bytes);
1408                         if (end)
1409                                 strcpy(buf + num_start_bytes, end);
1410                         else
1411                                 buf[num_start_bytes] = '\0';
1412                 } else {
1413                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
1414                 }
1415                 env_val = buf;
1416         } else {
1417                 buf = NULL;
1418                 env_val = CONSOLE_ARG;
1419         }
1420
1421         setenv("bootargs", env_val);
1422         debug("after silent fix-up: %s\n", env_val);
1423         free(buf);
1424 }
1425 #endif /* CONFIG_SILENT_CONSOLE */
1426
1427 #if defined(CONFIG_BOOTM_NETBSD) || defined(CONFIG_BOOTM_PLAN9)
1428 static void copy_args(char *dest, int argc, char * const argv[], char delim)
1429 {
1430         int i;
1431
1432         for (i = 0; i < argc; i++) {
1433                 if (i > 0)
1434                         *dest++ = delim;
1435                 strcpy(dest, argv[i]);
1436                 dest += strlen(argv[i]);
1437         }
1438 }
1439 #endif
1440
1441 /*******************************************************************/
1442 /* OS booting routines */
1443 /*******************************************************************/
1444
1445 #ifdef CONFIG_BOOTM_NETBSD
1446 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1447                             bootm_headers_t *images)
1448 {
1449         void (*loader)(bd_t *, image_header_t *, char *, char *);
1450         image_header_t *os_hdr, *hdr;
1451         ulong kernel_data, kernel_len;
1452         char *consdev;
1453         char *cmdline;
1454
1455         if (flag & BOOTM_STATE_OS_PREP)
1456                 return 0;
1457         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1458                 return 1;
1459
1460 #if defined(CONFIG_FIT)
1461         if (!images->legacy_hdr_valid) {
1462                 fit_unsupported_reset("NetBSD");
1463                 return 1;
1464         }
1465 #endif
1466         hdr = images->legacy_hdr_os;
1467
1468         /*
1469          * Booting a (NetBSD) kernel image
1470          *
1471          * This process is pretty similar to a standalone application:
1472          * The (first part of an multi-) image must be a stage-2 loader,
1473          * which in turn is responsible for loading & invoking the actual
1474          * kernel.  The only differences are the parameters being passed:
1475          * besides the board info strucure, the loader expects a command
1476          * line, the name of the console device, and (optionally) the
1477          * address of the original image header.
1478          */
1479         os_hdr = NULL;
1480         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1481                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1482                 if (kernel_len)
1483                         os_hdr = hdr;
1484         }
1485
1486         consdev = "";
1487 #if   defined(CONFIG_8xx_CONS_SMC1)
1488         consdev = "smc1";
1489 #elif defined(CONFIG_8xx_CONS_SMC2)
1490         consdev = "smc2";
1491 #elif defined(CONFIG_8xx_CONS_SCC2)
1492         consdev = "scc2";
1493 #elif defined(CONFIG_8xx_CONS_SCC3)
1494         consdev = "scc3";
1495 #endif
1496
1497         if (argc > 0) {
1498                 ulong len;
1499                 int   i;
1500
1501                 for (i = 0, len = 0; i < argc; i += 1)
1502                         len += strlen(argv[i]) + 1;
1503                 cmdline = malloc(len);
1504                 copy_args(cmdline, argc, argv, ' ');
1505         } else if ((cmdline = getenv("bootargs")) == NULL) {
1506                 cmdline = "";
1507         }
1508
1509         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1510
1511         printf("## Transferring control to NetBSD stage-2 loader "
1512                 "(at address %08lx) ...\n",
1513                 (ulong)loader);
1514
1515         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1516
1517         /*
1518          * NetBSD Stage-2 Loader Parameters:
1519          *   r3: ptr to board info data
1520          *   r4: image address
1521          *   r5: console device
1522          *   r6: boot args string
1523          */
1524         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1525
1526         return 1;
1527 }
1528 #endif /* CONFIG_BOOTM_NETBSD*/
1529
1530 #ifdef CONFIG_LYNXKDI
1531 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1532                              bootm_headers_t *images)
1533 {
1534         image_header_t *hdr = &images->legacy_hdr_os_copy;
1535
1536         if (flag & BOOTM_STATE_OS_PREP)
1537                 return 0;
1538         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1539                 return 1;
1540
1541 #if defined(CONFIG_FIT)
1542         if (!images->legacy_hdr_valid) {
1543                 fit_unsupported_reset("Lynx");
1544                 return 1;
1545         }
1546 #endif
1547
1548         lynxkdi_boot((image_header_t *)hdr);
1549
1550         return 1;
1551 }
1552 #endif /* CONFIG_LYNXKDI */
1553
1554 #ifdef CONFIG_BOOTM_RTEMS
1555 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1556                            bootm_headers_t *images)
1557 {
1558         void (*entry_point)(bd_t *);
1559
1560         if (flag & BOOTM_STATE_OS_PREP)
1561                 return 0;
1562         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1563                 return 1;
1564
1565 #if defined(CONFIG_FIT)
1566         if (!images->legacy_hdr_valid) {
1567                 fit_unsupported_reset("RTEMS");
1568                 return 1;
1569         }
1570 #endif
1571
1572         entry_point = (void (*)(bd_t *))images->ep;
1573
1574         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1575                 (ulong)entry_point);
1576
1577         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1578
1579         /*
1580          * RTEMS Parameters:
1581          *   r3: ptr to board info data
1582          */
1583         (*entry_point)(gd->bd);
1584
1585         return 1;
1586 }
1587 #endif /* CONFIG_BOOTM_RTEMS */
1588
1589 #if defined(CONFIG_BOOTM_OSE)
1590 static int do_bootm_ose(int flag, int argc, char * const argv[],
1591                            bootm_headers_t *images)
1592 {
1593         void (*entry_point)(void);
1594
1595         if (flag & BOOTM_STATE_OS_PREP)
1596                 return 0;
1597         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1598                 return 1;
1599
1600 #if defined(CONFIG_FIT)
1601         if (!images->legacy_hdr_valid) {
1602                 fit_unsupported_reset("OSE");
1603                 return 1;
1604         }
1605 #endif
1606
1607         entry_point = (void (*)(void))images->ep;
1608
1609         printf("## Transferring control to OSE (at address %08lx) ...\n",
1610                 (ulong)entry_point);
1611
1612         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1613
1614         /*
1615          * OSE Parameters:
1616          *   None
1617          */
1618         (*entry_point)();
1619
1620         return 1;
1621 }
1622 #endif /* CONFIG_BOOTM_OSE */
1623
1624 #if defined(CONFIG_BOOTM_PLAN9)
1625 static int do_bootm_plan9(int flag, int argc, char * const argv[],
1626                            bootm_headers_t *images)
1627 {
1628         void (*entry_point)(void);
1629         char *s;
1630
1631         if (flag & BOOTM_STATE_OS_PREP)
1632                 return 0;
1633         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1634                 return 1;
1635
1636 #if defined(CONFIG_FIT)
1637         if (!images->legacy_hdr_valid) {
1638                 fit_unsupported_reset("Plan 9");
1639                 return 1;
1640         }
1641 #endif
1642
1643         /* See README.plan9 */
1644         s = getenv("confaddr");
1645         if (s != NULL) {
1646                 char *confaddr = (char *)simple_strtoul(s, NULL, 16);
1647
1648                 if (argc > 0) {
1649                         copy_args(confaddr, argc, argv, '\n');
1650                 } else {
1651                         s = getenv("bootargs");
1652                         if (s != NULL)
1653                                 strcpy(confaddr, s);
1654                 }
1655         }
1656
1657         entry_point = (void (*)(void))images->ep;
1658
1659         printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
1660                 (ulong)entry_point);
1661
1662         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1663
1664         /*
1665          * Plan 9 Parameters:
1666          *   None
1667          */
1668         (*entry_point)();
1669
1670         return 1;
1671 }
1672 #endif /* CONFIG_BOOTM_PLAN9 */
1673
1674 #if defined(CONFIG_CMD_ELF)
1675 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1676                              bootm_headers_t *images)
1677 {
1678         char str[80];
1679
1680         if (flag & BOOTM_STATE_OS_PREP)
1681                 return 0;
1682         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1683                 return 1;
1684
1685 #if defined(CONFIG_FIT)
1686         if (!images->legacy_hdr_valid) {
1687                 fit_unsupported_reset("VxWorks");
1688                 return 1;
1689         }
1690 #endif
1691
1692         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1693         setenv("loadaddr", str);
1694         do_bootvx(NULL, 0, 0, NULL);
1695
1696         return 1;
1697 }
1698
1699 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1700                             bootm_headers_t *images)
1701 {
1702         char *local_args[2];
1703         char str[16];
1704
1705         if (flag & BOOTM_STATE_OS_PREP)
1706                 return 0;
1707         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1708                 return 1;
1709
1710 #if defined(CONFIG_FIT)
1711         if (!images->legacy_hdr_valid) {
1712                 fit_unsupported_reset("QNX");
1713                 return 1;
1714         }
1715 #endif
1716
1717         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1718         local_args[0] = argv[0];
1719         local_args[1] = str;    /* and provide it via the arguments */
1720         do_bootelf(NULL, 0, 2, local_args);
1721
1722         return 1;
1723 }
1724 #endif
1725
1726 #ifdef CONFIG_INTEGRITY
1727 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1728                            bootm_headers_t *images)
1729 {
1730         void (*entry_point)(void);
1731
1732         if (flag & BOOTM_STATE_OS_PREP)
1733                 return 0;
1734         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1735                 return 1;
1736
1737 #if defined(CONFIG_FIT)
1738         if (!images->legacy_hdr_valid) {
1739                 fit_unsupported_reset("INTEGRITY");
1740                 return 1;
1741         }
1742 #endif
1743
1744         entry_point = (void (*)(void))images->ep;
1745
1746         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1747                 (ulong)entry_point);
1748
1749         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1750
1751         /*
1752          * INTEGRITY Parameters:
1753          *   None
1754          */
1755         (*entry_point)();
1756
1757         return 1;
1758 }
1759 #endif
1760
1761 #ifdef CONFIG_CMD_BOOTZ
1762
1763 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
1764 {
1765         /* Please define bootz_setup() for your platform */
1766
1767         puts("Your platform's zImage format isn't supported yet!\n");
1768         return -1;
1769 }
1770
1771 /*
1772  * zImage booting support
1773  */
1774 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1775                         char * const argv[], bootm_headers_t *images)
1776 {
1777         int ret;
1778         ulong zi_start, zi_end;
1779
1780         ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
1781                               images, 1);
1782
1783         /* Setup Linux kernel zImage entry point */
1784         if (!argc) {
1785                 images->ep = load_addr;
1786                 debug("*  kernel: default image load address = 0x%08lx\n",
1787                                 load_addr);
1788         } else {
1789                 images->ep = simple_strtoul(argv[0], NULL, 16);
1790                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1791                         images->ep);
1792         }
1793
1794         ret = bootz_setup(images->ep, &zi_start, &zi_end);
1795         if (ret != 0)
1796                 return 1;
1797
1798         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1799
1800         /*
1801          * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
1802          * have a header that provide this informaiton.
1803          */
1804         if (bootm_find_ramdisk(flag, argc, argv))
1805                 return 1;
1806
1807 #if defined(CONFIG_OF_LIBFDT)
1808         if (bootm_find_fdt(flag, argc, argv))
1809                 return 1;
1810 #endif
1811
1812         return 0;
1813 }
1814
1815 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1816 {
1817         int ret;
1818
1819         /* Consume 'bootz' */
1820         argc--; argv++;
1821
1822         if (bootz_start(cmdtp, flag, argc, argv, &images))
1823                 return 1;
1824
1825         /*
1826          * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
1827          * disable interrupts ourselves
1828          */
1829         bootm_disable_interrupts();
1830
1831         images.os.os = IH_OS_LINUX;
1832         ret = do_bootm_states(cmdtp, flag, argc, argv,
1833                               BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
1834                               BOOTM_STATE_OS_GO,
1835                               &images, 1);
1836
1837         return ret;
1838 }
1839
1840 #ifdef CONFIG_SYS_LONGHELP
1841 static char bootz_help_text[] =
1842         "[addr [initrd[:size]] [fdt]]\n"
1843         "    - boot Linux zImage stored in memory\n"
1844         "\tThe argument 'initrd' is optional and specifies the address\n"
1845         "\tof the initrd in memory. The optional argument ':size' allows\n"
1846         "\tspecifying the size of RAW initrd.\n"
1847 #if defined(CONFIG_OF_LIBFDT)
1848         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1849         "\ta third argument is required which is the address of the\n"
1850         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1851         "\tuse a '-' for the second argument. If you do not pass a third\n"
1852         "\ta bd_info struct will be passed instead\n"
1853 #endif
1854         "";
1855 #endif
1856
1857 U_BOOT_CMD(
1858         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1859         "boot Linux zImage image from memory", bootz_help_text
1860 );
1861 #endif  /* CONFIG_CMD_BOOTZ */