git.sur5r.net Git - u-boot/blob - 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_BOOTM_VXWORKS) && \
  27         (defined(CONFIG_PPC) || defined(CONFIG_ARM))
  28 #include <vxworks.h>
  29 #endif
  30
  31 #if defined(CONFIG_CMD_USB)
  32 #include <usb.h>
  33 #endif
  34
  35 #ifdef CONFIG_SYS_HUSH_PARSER
  36 #include <hush.h>
  37 #endif
  38
  39 #if defined(CONFIG_OF_LIBFDT)
  40 #include <libfdt.h>
  41 #include <fdt_support.h>
  42 #endif
  43
  44 #ifdef CONFIG_LZMA
  45 #include <lzma/LzmaTypes.h>
  46 #include <lzma/LzmaDec.h>
  47 #include <lzma/LzmaTools.h>
  48 #endif /* CONFIG_LZMA */
  49
  50 #ifdef CONFIG_LZO
  51 #include <linux/lzo.h>
  52 #endif /* CONFIG_LZO */
  53
  54 DECLARE_GLOBAL_DATA_PTR;
  55
  56 #ifndef CONFIG_SYS_BOOTM_LEN
  57 #define CONFIG_SYS_BOOTM_LEN    0x800000        /* use 8MByte as default max gunzip size */
  58 #endif
  59
  60 #ifdef CONFIG_BZIP2
  61 extern void bz_internal_error(int);
  62 #endif
  63
  64 #if defined(CONFIG_CMD_IMI)
  65 static int image_info(unsigned long addr);
  66 #endif
  67
  68 #if defined(CONFIG_CMD_IMLS)
  69 #include <flash.h>
  70 #include <mtd/cfi_flash.h>
  71 extern flash_info_t flash_info[]; /* info for FLASH chips */
  72 #endif
  73
  74 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
  75 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  76 #endif
  77
  78 #include <linux/err.h>
  79 #include <nand.h>
  80
  81 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
  82 static void fixup_silent_linux(void);
  83 #endif
  84
  85 static int do_bootm_standalone(int flag, int argc, char * const argv[],
  86                                bootm_headers_t *images);
  87
  88 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
  89                                 char * const argv[], bootm_headers_t *images,
  90                                 ulong *os_data, ulong *os_len);
  91
  92 /*
  93  *  Continue booting an OS image; caller already has:
  94  *  - copied image header to global variable `header'
  95  *  - checked header magic number, checksums (both header & image),
  96  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
  97  *  - loaded (first part of) image to header load address,
  98  *  - disabled interrupts.
  99  *
 100  * @flag: Flags indicating what to do (BOOTM_STATE_...)
 101  * @argc: Number of arguments. Note that the arguments are shifted down
 102  *       so that 0 is the first argument not processed by U-Boot, and
 103  *       argc is adjusted accordingly. This avoids confusion as to how
 104  *       many arguments are available for the OS.
 105  * @images: Pointers to os/initrd/fdt
 106  * @return 1 on error. On success the OS boots so this function does
 107  * not return.
 108  */
 109 typedef int boot_os_fn(int flag, int argc, char * const argv[],
 110                         bootm_headers_t *images);
 111
 112 #ifdef CONFIG_BOOTM_LINUX
 113 extern boot_os_fn do_bootm_linux;
 114 #endif
 115 #ifdef CONFIG_BOOTM_NETBSD
 116 static boot_os_fn do_bootm_netbsd;
 117 #endif
 118 #if defined(CONFIG_LYNXKDI)
 119 static boot_os_fn do_bootm_lynxkdi;
 120 extern void lynxkdi_boot(image_header_t *);
 121 #endif
 122 #ifdef CONFIG_BOOTM_RTEMS
 123 static boot_os_fn do_bootm_rtems;
 124 #endif
 125 #if defined(CONFIG_BOOTM_OSE)
 126 static boot_os_fn do_bootm_ose;
 127 #endif
 128 #if defined(CONFIG_BOOTM_PLAN9)
 129 static boot_os_fn do_bootm_plan9;
 130 #endif
 131 #if defined(CONFIG_BOOTM_VXWORKS) && \
 132         (defined(CONFIG_PPC) || defined(CONFIG_ARM))
 133 static boot_os_fn do_bootm_vxworks;
 134 #endif
 135 #if defined(CONFIG_CMD_ELF)
 136 static boot_os_fn do_bootm_qnxelf;
 137 int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 138 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 139 #endif
 140 #if defined(CONFIG_INTEGRITY)
 141 static boot_os_fn do_bootm_integrity;
 142 #endif
 143
 144 static boot_os_fn *boot_os[] = {
 145         [IH_OS_U_BOOT] = do_bootm_standalone,
 146 #ifdef CONFIG_BOOTM_LINUX
 147         [IH_OS_LINUX] = do_bootm_linux,
 148 #endif
 149 #ifdef CONFIG_BOOTM_NETBSD
 150         [IH_OS_NETBSD] = do_bootm_netbsd,
 151 #endif
 152 #ifdef CONFIG_LYNXKDI
 153         [IH_OS_LYNXOS] = do_bootm_lynxkdi,
 154 #endif
 155 #ifdef CONFIG_BOOTM_RTEMS
 156         [IH_OS_RTEMS] = do_bootm_rtems,
 157 #endif
 158 #if defined(CONFIG_BOOTM_OSE)
 159         [IH_OS_OSE] = do_bootm_ose,
 160 #endif
 161 #if defined(CONFIG_BOOTM_PLAN9)
 162         [IH_OS_PLAN9] = do_bootm_plan9,
 163 #endif
 164 #if defined(CONFIG_BOOTM_VXWORKS) && \
 165         (defined(CONFIG_PPC) || defined(CONFIG_ARM))
 166         [IH_OS_VXWORKS] = do_bootm_vxworks,
 167 #endif
 168 #if defined(CONFIG_CMD_ELF)
 169         [IH_OS_QNX] = do_bootm_qnxelf,
 170 #endif
 171 #ifdef CONFIG_INTEGRITY
 172         [IH_OS_INTEGRITY] = do_bootm_integrity,
 173 #endif
 174 };
 175
 176 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
 177
 178 /* Allow for arch specific config before we boot */
 179 static void __arch_preboot_os(void)
 180 {
 181         /* please define platform specific arch_preboot_os() */
 182 }
 183 void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
 184
 185 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
 186
 187 #ifdef CONFIG_LMB
 188 static void boot_start_lmb(bootm_headers_t *images)
 189 {
 190         ulong           mem_start;
 191         phys_size_t     mem_size;
 192
 193         lmb_init(&images->lmb);
 194
 195         mem_start = getenv_bootm_low();
 196         mem_size = getenv_bootm_size();
 197
 198         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
 199
 200         arch_lmb_reserve(&images->lmb);
 201         board_lmb_reserve(&images->lmb);
 202 }
 203 #else
 204 #define lmb_reserve(lmb, base, size)
 205 static inline void boot_start_lmb(bootm_headers_t *images) { }
 206 #endif
 207
 208 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 209 {
 210         memset((void *)&images, 0, sizeof(images));
 211         images.verify = getenv_yesno("verify");
 212
 213         boot_start_lmb(&images);
 214
 215         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
 216         images.state = BOOTM_STATE_START;
 217
 218         return 0;
 219 }
 220
 221 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
 222                          char * const argv[])
 223 {
 224         const void *os_hdr;
 225
 226         /* get kernel image header, start address and length */
 227         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
 228                         &images, &images.os.image_start, &images.os.image_len);
 229         if (images.os.image_len == 0) {
 230                 puts("ERROR: can't get kernel image!\n");
 231                 return 1;
 232         }
 233
 234         /* get image parameters */
 235         switch (genimg_get_format(os_hdr)) {
 236         case IMAGE_FORMAT_LEGACY:
 237                 images.os.type = image_get_type(os_hdr);
 238                 images.os.comp = image_get_comp(os_hdr);
 239                 images.os.os = image_get_os(os_hdr);
 240
 241                 images.os.end = image_get_image_end(os_hdr);
 242                 images.os.load = image_get_load(os_hdr);
 243                 break;
 244 #if defined(CONFIG_FIT)
 245         case IMAGE_FORMAT_FIT:
 246                 if (fit_image_get_type(images.fit_hdr_os,
 247                                         images.fit_noffset_os, &images.os.type)) {
 248                         puts("Can't get image type!\n");
 249                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 250                         return 1;
 251                 }
 252
 253                 if (fit_image_get_comp(images.fit_hdr_os,
 254                                         images.fit_noffset_os, &images.os.comp)) {
 255                         puts("Can't get image compression!\n");
 256                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 257                         return 1;
 258                 }
 259
 260                 if (fit_image_get_os(images.fit_hdr_os,
 261                                         images.fit_noffset_os, &images.os.os)) {
 262                         puts("Can't get image OS!\n");
 263                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 264                         return 1;
 265                 }
 266
 267                 images.os.end = fit_get_end(images.fit_hdr_os);
 268
 269                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 270                                         &images.os.load)) {
 271                         puts("Can't get image load address!\n");
 272                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 273                         return 1;
 274                 }
 275                 break;
 276 #endif
 277         default:
 278                 puts("ERROR: unknown image format type!\n");
 279                 return 1;
 280         }
 281
 282         /* find kernel entry point */
 283         if (images.legacy_hdr_valid) {
 284                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 285 #if defined(CONFIG_FIT)
 286         } else if (images.fit_uname_os) {
 287                 int ret;
 288
 289                 ret = fit_image_get_entry(images.fit_hdr_os,
 290                                           images.fit_noffset_os, &images.ep);
 291                 if (ret) {
 292                         puts("Can't get entry point property!\n");
 293                         return 1;
 294                 }
 295 #endif
 296         } else {
 297                 puts("Could not find kernel entry point!\n");
 298                 return 1;
 299         }
 300
 301         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 302                 images.os.load = images.os.image_start;
 303                 images.ep += images.os.load;
 304         }
 305
 306         images.os.start = (ulong)os_hdr;
 307
 308         return 0;
 309 }
 310
 311 static int bootm_find_ramdisk(int flag, int argc, char * const argv[])
 312 {
 313         int ret;
 314
 315         /* find ramdisk */
 316         ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 317                                &images.rd_start, &images.rd_end);
 318         if (ret) {
 319                 puts("Ramdisk image is corrupt or invalid\n");
 320                 return 1;
 321         }
 322
 323         return 0;
 324 }
 325
 326 #if defined(CONFIG_OF_LIBFDT)
 327 static int bootm_find_fdt(int flag, int argc, char * const argv[])
 328 {
 329         int ret;
 330
 331         /* find flattened device tree */
 332         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
 333                            &images.ft_addr, &images.ft_len);
 334         if (ret) {
 335                 puts("Could not find a valid device tree\n");
 336                 return 1;
 337         }
 338
 339         set_working_fdt_addr(images.ft_addr);
 340
 341         return 0;
 342 }
 343 #endif
 344
 345 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
 346                             char * const argv[])
 347 {
 348         if (((images.os.type == IH_TYPE_KERNEL) ||
 349              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 350              (images.os.type == IH_TYPE_MULTI)) &&
 351             (images.os.os == IH_OS_LINUX ||
 352                  images.os.os == IH_OS_VXWORKS)) {
 353                 if (bootm_find_ramdisk(flag, argc, argv))
 354                         return 1;
 355
 356 #if defined(CONFIG_OF_LIBFDT)
 357                 if (bootm_find_fdt(flag, argc, argv))
 358                         return 1;
 359 #endif
 360         }
 361
 362         return 0;
 363 }
 364
 365 #define BOOTM_ERR_RESET         -1
 366 #define BOOTM_ERR_OVERLAP       -2
 367 #define BOOTM_ERR_UNIMPLEMENTED -3
 368 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
 369                 int boot_progress)
 370 {
 371         image_info_t os = images->os;
 372         uint8_t comp = os.comp;
 373         ulong load = os.load;
 374         ulong blob_start = os.start;
 375         ulong blob_end = os.end;
 376         ulong image_start = os.image_start;
 377         ulong image_len = os.image_len;
 378         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 379         int no_overlap = 0;
 380         void *load_buf, *image_buf;
 381 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 382         int ret;
 383 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 384
 385         const char *type_name = genimg_get_type_name(os.type);
 386
 387         load_buf = map_sysmem(load, unc_len);
 388         image_buf = map_sysmem(image_start, image_len);
 389         switch (comp) {
 390         case IH_COMP_NONE:
 391                 if (load == blob_start || load == image_start) {
 392                         printf("   XIP %s ... ", type_name);
 393                         no_overlap = 1;
 394                 } else {
 395                         printf("   Loading %s ... ", type_name);
 396                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
 397                 }
 398                 *load_end = load + image_len;
 399                 break;
 400 #ifdef CONFIG_GZIP
 401         case IH_COMP_GZIP:
 402                 printf("   Uncompressing %s ... ", type_name);
 403                 if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) {
 404                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 405                                 "error - must RESET board to recover\n");
 406                         if (boot_progress)
 407                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 408                         return BOOTM_ERR_RESET;
 409                 }
 410
 411                 *load_end = load + image_len;
 412                 break;
 413 #endif /* CONFIG_GZIP */
 414 #ifdef CONFIG_BZIP2
 415         case IH_COMP_BZIP2:
 416                 printf("   Uncompressing %s ... ", type_name);
 417                 /*
 418                  * If we've got less than 4 MB of malloc() space,
 419                  * use slower decompression algorithm which requires
 420                  * at most 2300 KB of memory.
 421                  */
 422                 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
 423                         image_buf, image_len,
 424                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 425                 if (i != BZ_OK) {
 426                         printf("BUNZIP2: uncompress or overwrite error %d "
 427                                 "- must RESET board to recover\n", i);
 428                         if (boot_progress)
 429                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 430                         return BOOTM_ERR_RESET;
 431                 }
 432
 433                 *load_end = load + unc_len;
 434                 break;
 435 #endif /* CONFIG_BZIP2 */
 436 #ifdef CONFIG_LZMA
 437         case IH_COMP_LZMA: {
 438                 SizeT lzma_len = unc_len;
 439                 printf("   Uncompressing %s ... ", type_name);
 440
 441                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
 442                                                image_buf, image_len);
 443                 unc_len = lzma_len;
 444                 if (ret != SZ_OK) {
 445                         printf("LZMA: uncompress or overwrite error %d "
 446                                 "- must RESET board to recover\n", ret);
 447                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 448                         return BOOTM_ERR_RESET;
 449                 }
 450                 *load_end = load + unc_len;
 451                 break;
 452         }
 453 #endif /* CONFIG_LZMA */
 454 #ifdef CONFIG_LZO
 455         case IH_COMP_LZO: {
 456                 size_t size;
 457
 458                 printf("   Uncompressing %s ... ", type_name);
 459
 460                 ret = lzop_decompress(image_buf, image_len, load_buf, &size);
 461                 if (ret != LZO_E_OK) {
 462                         printf("LZO: uncompress or overwrite error %d "
 463                               "- must RESET board to recover\n", ret);
 464                         if (boot_progress)
 465                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 466                         return BOOTM_ERR_RESET;
 467                 }
 468
 469                 *load_end = load + size;
 470                 break;
 471         }
 472 #endif /* CONFIG_LZO */
 473         default:
 474                 printf("Unimplemented compression type %d\n", comp);
 475                 return BOOTM_ERR_UNIMPLEMENTED;
 476         }
 477
 478         flush_cache(load, (*load_end - load) * sizeof(ulong));
 479
 480         puts("OK\n");
 481         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 482         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 483
 484         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 485                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 486                         blob_start, blob_end);
 487                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 488                         *load_end);
 489
 490                 /* Check what type of image this is. */
 491                 if (images->legacy_hdr_valid) {
 492                         if (image_get_type(&images->legacy_hdr_os_copy)
 493                                         == IH_TYPE_MULTI)
 494                                 puts("WARNING: legacy format multi component image overwritten\n");
 495                         return BOOTM_ERR_OVERLAP;
 496                 } else {
 497                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
 498                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 499                         return BOOTM_ERR_RESET;
 500                 }
 501         }
 502
 503         return 0;
 504 }
 505
 506 static int do_bootm_standalone(int flag, int argc, char * const argv[],
 507                                bootm_headers_t *images)
 508 {
 509         char  *s;
 510         int   (*appl)(int, char * const []);
 511
 512         /* Don't start if "autostart" is set to "no" */
 513         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 514                 setenv_hex("filesize", images->os.image_len);
 515                 return 0;
 516         }
 517         appl = (int (*)(int, char * const []))images->ep;
 518         appl(argc, argv);
 519         return 0;
 520 }
 521
 522 /* we overload the cmd field with our state machine info instead of a
 523  * function pointer */
 524 static cmd_tbl_t cmd_bootm_sub[] = {
 525         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 526         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 527 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 528         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 529 #endif
 530 #ifdef CONFIG_OF_LIBFDT
 531         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 532 #endif
 533         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 534         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 535         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 536         U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""),
 537         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 538 };
 539
 540 static int boot_selected_os(int argc, char * const argv[], int state,
 541                 bootm_headers_t *images, boot_os_fn *boot_fn)
 542 {
 543         arch_preboot_os();
 544         boot_fn(state, argc, argv, images);
 545
 546         /* Stand-alone may return when 'autostart' is 'no' */
 547         if (images->os.type == IH_TYPE_STANDALONE ||
 548             state == BOOTM_STATE_OS_FAKE_GO) /* We expect to return */
 549                 return 0;
 550         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
 551 #ifdef DEBUG
 552         puts("\n## Control returned to monitor - resetting...\n");
 553 #endif
 554         return BOOTM_ERR_RESET;
 555 }
 556
 557 /**
 558  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
 559  *
 560  * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
 561  *      enabled)
 562  */
 563 static ulong bootm_disable_interrupts(void)
 564 {
 565         ulong iflag;
 566
 567         /*
 568          * We have reached the point of no return: we are going to
 569          * overwrite all exception vector code, so we cannot easily
 570          * recover from any failures any more...
 571          */
 572         iflag = disable_interrupts();
 573 #ifdef CONFIG_NETCONSOLE
 574         /* Stop the ethernet stack if NetConsole could have left it up */
 575         eth_halt();
 576         eth_unregister(eth_get_dev());
 577 #endif
 578
 579 #if defined(CONFIG_CMD_USB)
 580         /*
 581          * turn off USB to prevent the host controller from writing to the
 582          * SDRAM while Linux is booting. This could happen (at least for OHCI
 583          * controller), because the HCCA (Host Controller Communication Area)
 584          * lies within the SDRAM and the host controller writes continously to
 585          * this area (as busmaster!). The HccaFrameNumber is for example
 586          * updated every 1 ms within the HCCA structure in SDRAM! For more
 587          * details see the OpenHCI specification.
 588          */
 589         usb_stop();
 590 #endif
 591         return iflag;
 592 }
 593
 594 /**
 595  * Execute selected states of the bootm command.
 596  *
 597  * Note the arguments to this state must be the first argument, Any 'bootm'
 598  * or sub-command arguments must have already been taken.
 599  *
 600  * Note that if states contains more than one flag it MUST contain
 601  * BOOTM_STATE_START, since this handles and consumes the command line args.
 602  *
 603  * Also note that aside from boot_os_fn functions and bootm_load_os no other
 604  * functions we store the return value of in 'ret' may use a negative return
 605  * value, without special handling.
 606  *
 607  * @param cmdtp         Pointer to bootm command table entry
 608  * @param flag          Command flags (CMD_FLAG_...)
 609  * @param argc          Number of subcommand arguments (0 = no arguments)
 610  * @param argv          Arguments
 611  * @param states        Mask containing states to run (BOOTM_STATE_...)
 612  * @param images        Image header information
 613  * @param boot_progress 1 to show boot progress, 0 to not do this
 614  * @return 0 if ok, something else on error. Some errors will cause this
 615  *      function to perform a reboot! If states contains BOOTM_STATE_OS_GO
 616  *      then the intent is to boot an OS, so this function will not return
 617  *      unless the image type is standalone.
 618  */
 619 static int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc,
 620                 char * const argv[], int states, bootm_headers_t *images,
 621                 int boot_progress)
 622 {
 623         boot_os_fn *boot_fn;
 624         ulong iflag = 0;
 625         int ret = 0, need_boot_fn;
 626
 627         images->state |= states;
 628
 629         /*
 630          * Work through the states and see how far we get. We stop on
 631          * any error.
 632          */
 633         if (states & BOOTM_STATE_START)
 634                 ret = bootm_start(cmdtp, flag, argc, argv);
 635
 636         if (!ret && (states & BOOTM_STATE_FINDOS))
 637                 ret = bootm_find_os(cmdtp, flag, argc, argv);
 638
 639         if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
 640                 ret = bootm_find_other(cmdtp, flag, argc, argv);
 641                 argc = 0;       /* consume the args */
 642         }
 643
 644         /* Load the OS */
 645         if (!ret && (states & BOOTM_STATE_LOADOS)) {
 646                 ulong load_end;
 647
 648                 iflag = bootm_disable_interrupts();
 649                 ret = bootm_load_os(images, &load_end, 0);
 650                 if (ret == 0)
 651                         lmb_reserve(&images->lmb, images->os.load,
 652                                     (load_end - images->os.load));
 653                 else if (ret && ret != BOOTM_ERR_OVERLAP)
 654                         goto err;
 655                 else if (ret == BOOTM_ERR_OVERLAP)
 656                         ret = 0;
 657 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
 658                 if (images->os.os == IH_OS_LINUX)
 659                         fixup_silent_linux();
 660 #endif
 661         }
 662
 663         /* Relocate the ramdisk */
 664 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 665         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
 666                 ulong rd_len = images->rd_end - images->rd_start;
 667
 668                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
 669                         rd_len, &images->initrd_start, &images->initrd_end);
 670                 if (!ret) {
 671                         setenv_hex("initrd_start", images->initrd_start);
 672                         setenv_hex("initrd_end", images->initrd_end);
 673                 }
 674         }
 675 #endif
 676 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
 677         if (!ret && (states & BOOTM_STATE_FDT)) {
 678                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
 679                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
 680                                         &images->ft_len);
 681         }
 682 #endif
 683
 684         /* From now on, we need the OS boot function */
 685         if (ret)
 686                 return ret;
 687         boot_fn = boot_os[images->os.os];
 688         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
 689                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
 690                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
 691         if (boot_fn == NULL && need_boot_fn) {
 692                 if (iflag)
 693                         enable_interrupts();
 694                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 695                        genimg_get_os_name(images->os.os), images->os.os);
 696                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 697                 return 1;
 698         }
 699
 700         /* Call various other states that are not generally used */
 701         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
 702                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
 703         if (!ret && (states & BOOTM_STATE_OS_BD_T))
 704                 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
 705         if (!ret && (states & BOOTM_STATE_OS_PREP))
 706                 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
 707
 708 #ifdef CONFIG_TRACE
 709         /* Pretend to run the OS, then run a user command */
 710         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
 711                 char *cmd_list = getenv("fakegocmd");
 712
 713                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
 714                                 images, boot_fn);
 715                 if (!ret && cmd_list)
 716                         ret = run_command_list(cmd_list, -1, flag);
 717         }
 718 #endif
 719
 720         /* Check for unsupported subcommand. */
 721         if (ret) {
 722                 puts("subcommand not supported\n");
 723                 return ret;
 724         }
 725
 726         /* Now run the OS! We hope this doesn't return */
 727         if (!ret && (states & BOOTM_STATE_OS_GO))
 728                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
 729                                 images, boot_fn);
 730
 731         /* Deal with any fallout */
 732 err:
 733         if (iflag)
 734                 enable_interrupts();
 735
 736         if (ret == BOOTM_ERR_UNIMPLEMENTED)
 737                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 738         else if (ret == BOOTM_ERR_RESET)
 739                 do_reset(cmdtp, flag, argc, argv);
 740
 741         return ret;
 742 }
 743
 744 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 745                         char * const argv[])
 746 {
 747         int ret = 0;
 748         long state;
 749         cmd_tbl_t *c;
 750
 751         c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 752         argc--; argv++;
 753
 754         if (c) {
 755                 state = (long)c->cmd;
 756                 if (state == BOOTM_STATE_START)
 757                         state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
 758         } else {
 759                 /* Unrecognized command */
 760                 return CMD_RET_USAGE;
 761         }
 762
 763         if (state != BOOTM_STATE_START && images.state >= state) {
 764                 printf("Trying to execute a command out of order\n");
 765                 return CMD_RET_USAGE;
 766         }
 767
 768         ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
 769
 770         return ret;
 771 }
 772
 773 /*******************************************************************/
 774 /* bootm - boot application image from image in memory */
 775 /*******************************************************************/
 776
 777 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 778 {
 779 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 780         static int relocated = 0;
 781
 782         if (!relocated) {
 783                 int i;
 784
 785                 /* relocate boot function table */
 786                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
 787                         if (boot_os[i] != NULL)
 788                                 boot_os[i] += gd->reloc_off;
 789
 790                 /* relocate names of sub-command table */
 791                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
 792                         cmd_bootm_sub[i].name += gd->reloc_off;
 793
 794                 relocated = 1;
 795         }
 796 #endif
 797
 798         /* determine if we have a sub command */
 799         argc--; argv++;
 800         if (argc > 0) {
 801                 char *endp;
 802
 803                 simple_strtoul(argv[0], &endp, 16);
 804                 /* endp pointing to NULL means that argv[0] was just a
 805                  * valid number, pass it along to the normal bootm processing
 806                  *
 807                  * If endp is ':' or '#' assume a FIT identifier so pass
 808                  * along for normal processing.
 809                  *
 810                  * Right now we assume the first arg should never be '-'
 811                  */
 812                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 813                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 814         }
 815
 816         return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
 817                 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
 818                 BOOTM_STATE_LOADOS |
 819 #if defined(CONFIG_PPC) || defined(CONFIG_MIPS)
 820                 BOOTM_STATE_OS_CMDLINE |
 821 #endif
 822                 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
 823                 BOOTM_STATE_OS_GO, &images, 1);
 824 }
 825
 826 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
 827 {
 828         const char *ep = getenv("autostart");
 829
 830         if (ep && !strcmp(ep, "yes")) {
 831                 char *local_args[2];
 832                 local_args[0] = (char *)cmd;
 833                 local_args[1] = NULL;
 834                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
 835                 return do_bootm(cmdtp, 0, 1, local_args);
 836         }
 837
 838         return 0;
 839 }
 840
 841 /**
 842  * image_get_kernel - verify legacy format kernel image
 843  * @img_addr: in RAM address of the legacy format image to be verified
 844  * @verify: data CRC verification flag
 845  *
 846  * image_get_kernel() verifies legacy image integrity and returns pointer to
 847  * legacy image header if image verification was completed successfully.
 848  *
 849  * returns:
 850  *     pointer to a legacy image header if valid image was found
 851  *     otherwise return NULL
 852  */
 853 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 854 {
 855         image_header_t *hdr = (image_header_t *)img_addr;
 856
 857         if (!image_check_magic(hdr)) {
 858                 puts("Bad Magic Number\n");
 859                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 860                 return NULL;
 861         }
 862         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 863
 864         if (!image_check_hcrc(hdr)) {
 865                 puts("Bad Header Checksum\n");
 866                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 867                 return NULL;
 868         }
 869
 870         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 871         image_print_contents(hdr);
 872
 873         if (verify) {
 874                 puts("   Verifying Checksum ... ");
 875                 if (!image_check_dcrc(hdr)) {
 876                         printf("Bad Data CRC\n");
 877                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 878                         return NULL;
 879                 }
 880                 puts("OK\n");
 881         }
 882         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 883
 884         if (!image_check_target_arch(hdr)) {
 885                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 886                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 887                 return NULL;
 888         }
 889         return hdr;
 890 }
 891
 892 /**
 893  * boot_get_kernel - find kernel image
 894  * @os_data: pointer to a ulong variable, will hold os data start address
 895  * @os_len: pointer to a ulong variable, will hold os data length
 896  *
 897  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 898  * and locates kernel data.
 899  *
 900  * returns:
 901  *     pointer to image header if valid image was found, plus kernel start
 902  *     address and length, otherwise NULL
 903  */
 904 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 905                 char * const argv[], bootm_headers_t *images, ulong *os_data,
 906                 ulong *os_len)
 907 {
 908         image_header_t  *hdr;
 909         ulong           img_addr;
 910         const void *buf;
 911 #if defined(CONFIG_FIT)
 912         const char      *fit_uname_config = NULL;
 913         const char      *fit_uname_kernel = NULL;
 914         int             os_noffset;
 915 #endif
 916
 917         /* find out kernel image address */
 918         if (argc < 1) {
 919                 img_addr = load_addr;
 920                 debug("*  kernel: default image load address = 0x%08lx\n",
 921                                 load_addr);
 922 #if defined(CONFIG_FIT)
 923         } else if (fit_parse_conf(argv[0], load_addr, &img_addr,
 924                                                         &fit_uname_config)) {
 925                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
 926                                 fit_uname_config, img_addr);
 927         } else if (fit_parse_subimage(argv[0], load_addr, &img_addr,
 928                                                         &fit_uname_kernel)) {
 929                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
 930                                 fit_uname_kernel, img_addr);
 931 #endif
 932         } else {
 933                 img_addr = simple_strtoul(argv[0], NULL, 16);
 934                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 935         }
 936
 937         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 938
 939         /* copy from dataflash if needed */
 940         img_addr = genimg_get_image(img_addr);
 941
 942         /* check image type, for FIT images get FIT kernel node */
 943         *os_data = *os_len = 0;
 944         buf = map_sysmem(img_addr, 0);
 945         switch (genimg_get_format(buf)) {
 946         case IMAGE_FORMAT_LEGACY:
 947                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 948                                 img_addr);
 949                 hdr = image_get_kernel(img_addr, images->verify);
 950                 if (!hdr)
 951                         return NULL;
 952                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 953
 954                 /* get os_data and os_len */
 955                 switch (image_get_type(hdr)) {
 956                 case IH_TYPE_KERNEL:
 957                 case IH_TYPE_KERNEL_NOLOAD:
 958                         *os_data = image_get_data(hdr);
 959                         *os_len = image_get_data_size(hdr);
 960                         break;
 961                 case IH_TYPE_MULTI:
 962                         image_multi_getimg(hdr, 0, os_data, os_len);
 963                         break;
 964                 case IH_TYPE_STANDALONE:
 965                         *os_data = image_get_data(hdr);
 966                         *os_len = image_get_data_size(hdr);
 967                         break;
 968                 default:
 969                         printf("Wrong Image Type for %s command\n",
 970                                 cmdtp->name);
 971                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 972                         return NULL;
 973                 }
 974
 975                 /*
 976                  * copy image header to allow for image overwrites during
 977                  * kernel decompression.
 978                  */
 979                 memmove(&images->legacy_hdr_os_copy, hdr,
 980                         sizeof(image_header_t));
 981
 982                 /* save pointer to image header */
 983                 images->legacy_hdr_os = hdr;
 984
 985                 images->legacy_hdr_valid = 1;
 986                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 987                 break;
 988 #if defined(CONFIG_FIT)
 989         case IMAGE_FORMAT_FIT:
 990                 os_noffset = fit_image_load(images, FIT_KERNEL_PROP,
 991                                 img_addr,
 992                                 &fit_uname_kernel, &fit_uname_config,
 993                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
 994                                 BOOTSTAGE_ID_FIT_KERNEL_START,
 995                                 FIT_LOAD_IGNORED, os_data, os_len);
 996                 if (os_noffset < 0)
 997                         return NULL;
 998
 999                 images->fit_hdr_os = map_sysmem(img_addr, 0);
1000                 images->fit_uname_os = fit_uname_kernel;
1001                 images->fit_uname_cfg = fit_uname_config;
1002                 images->fit_noffset_os = os_noffset;
1003                 break;
1004 #endif
1005         default:
1006                 printf("Wrong Image Format for %s command\n", cmdtp->name);
1007                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
1008                 return NULL;
1009         }
1010
1011         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
1012                         *os_data, *os_len, *os_len);
1013
1014         return buf;
1015 }
1016
1017 #ifdef CONFIG_SYS_LONGHELP
1018 static char bootm_help_text[] =
1019         "[addr [arg ...]]\n    - boot application image stored in memory\n"
1020         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
1021         "\t'arg' can be the address of an initrd image\n"
1022 #if defined(CONFIG_OF_LIBFDT)
1023         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1024         "\ta third argument is required which is the address of the\n"
1025         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1026         "\tuse a '-' for the second argument. If you do not pass a third\n"
1027         "\ta bd_info struct will be passed instead\n"
1028 #endif
1029 #if defined(CONFIG_FIT)
1030         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1031         "\tmust be extened to include component or configuration unit name:\n"
1032         "\taddr:<subimg_uname> - direct component image specification\n"
1033         "\taddr#<conf_uname>   - configuration specification\n"
1034         "\tUse iminfo command to get the list of existing component\n"
1035         "\timages and configurations.\n"
1036 #endif
1037         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1038         "must be\n"
1039         "issued in the order below (it's ok to not issue all sub-commands):\n"
1040         "\tstart [addr [arg ...]]\n"
1041         "\tloados  - load OS image\n"
1042 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
1043         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1044 #endif
1045 #if defined(CONFIG_OF_LIBFDT)
1046         "\tfdt     - relocate flat device tree\n"
1047 #endif
1048         "\tcmdline - OS specific command line processing/setup\n"
1049         "\tbdt     - OS specific bd_t processing\n"
1050         "\tprep    - OS specific prep before relocation or go\n"
1051         "\tgo      - start OS";
1052 #endif
1053
1054 U_BOOT_CMD(
1055         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1056         "boot application image from memory", bootm_help_text
1057 );
1058
1059 /*******************************************************************/
1060 /* bootd - boot default image */
1061 /*******************************************************************/
1062 #if defined(CONFIG_CMD_BOOTD)
1063 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1064 {
1065         int rcode = 0;
1066
1067         if (run_command(getenv("bootcmd"), flag) < 0)
1068                 rcode = 1;
1069         return rcode;
1070 }
1071
1072 U_BOOT_CMD(
1073         boot,   1,      1,      do_bootd,
1074         "boot default, i.e., run 'bootcmd'",
1075         ""
1076 );
1077
1078 /* keep old command name "bootd" for backward compatibility */
1079 U_BOOT_CMD(
1080         bootd, 1,       1,      do_bootd,
1081         "boot default, i.e., run 'bootcmd'",
1082         ""
1083 );
1084
1085 #endif
1086
1087
1088 /*******************************************************************/
1089 /* iminfo - print header info for a requested image */
1090 /*******************************************************************/
1091 #if defined(CONFIG_CMD_IMI)
1092 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1093 {
1094         int     arg;
1095         ulong   addr;
1096         int     rcode = 0;
1097
1098         if (argc < 2) {
1099                 return image_info(load_addr);
1100         }
1101
1102         for (arg = 1; arg < argc; ++arg) {
1103                 addr = simple_strtoul(argv[arg], NULL, 16);
1104                 if (image_info(addr) != 0)
1105                         rcode = 1;
1106         }
1107         return rcode;
1108 }
1109
1110 static int image_info(ulong addr)
1111 {
1112         void *hdr = (void *)addr;
1113
1114         printf("\n## Checking Image at %08lx ...\n", addr);
1115
1116         switch (genimg_get_format(hdr)) {
1117         case IMAGE_FORMAT_LEGACY:
1118                 puts("   Legacy image found\n");
1119                 if (!image_check_magic(hdr)) {
1120                         puts("   Bad Magic Number\n");
1121                         return 1;
1122                 }
1123
1124                 if (!image_check_hcrc(hdr)) {
1125                         puts("   Bad Header Checksum\n");
1126                         return 1;
1127                 }
1128
1129                 image_print_contents(hdr);
1130
1131                 puts("   Verifying Checksum ... ");
1132                 if (!image_check_dcrc(hdr)) {
1133                         puts("   Bad Data CRC\n");
1134                         return 1;
1135                 }
1136                 puts("OK\n");
1137                 return 0;
1138 #if defined(CONFIG_FIT)
1139         case IMAGE_FORMAT_FIT:
1140                 puts("   FIT image found\n");
1141
1142                 if (!fit_check_format(hdr)) {
1143                         puts("Bad FIT image format!\n");
1144                         return 1;
1145                 }
1146
1147                 fit_print_contents(hdr);
1148
1149                 if (!fit_all_image_verify(hdr)) {
1150                         puts("Bad hash in FIT image!\n");
1151                         return 1;
1152                 }
1153
1154                 return 0;
1155 #endif
1156         default:
1157                 puts("Unknown image format!\n");
1158                 break;
1159         }
1160
1161         return 1;
1162 }
1163
1164 U_BOOT_CMD(
1165         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1166         "print header information for application image",
1167         "addr [addr ...]\n"
1168         "    - print header information for application image starting at\n"
1169         "      address 'addr' in memory; this includes verification of the\n"
1170         "      image contents (magic number, header and payload checksums)"
1171 );
1172 #endif
1173
1174
1175 /*******************************************************************/
1176 /* imls - list all images found in flash */
1177 /*******************************************************************/
1178 #if defined(CONFIG_CMD_IMLS)
1179 static int do_imls_nor(void)
1180 {
1181         flash_info_t *info;
1182         int i, j;
1183         void *hdr;
1184
1185         for (i = 0, info = &flash_info[0];
1186                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1187
1188                 if (info->flash_id == FLASH_UNKNOWN)
1189                         goto next_bank;
1190                 for (j = 0; j < info->sector_count; ++j) {
1191
1192                         hdr = (void *)info->start[j];
1193                         if (!hdr)
1194                                 goto next_sector;
1195
1196                         switch (genimg_get_format(hdr)) {
1197                         case IMAGE_FORMAT_LEGACY:
1198                                 if (!image_check_hcrc(hdr))
1199                                         goto next_sector;
1200
1201                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1202                                 image_print_contents(hdr);
1203
1204                                 puts("   Verifying Checksum ... ");
1205                                 if (!image_check_dcrc(hdr)) {
1206                                         puts("Bad Data CRC\n");
1207                                 } else {
1208                                         puts("OK\n");
1209                                 }
1210                                 break;
1211 #if defined(CONFIG_FIT)
1212                         case IMAGE_FORMAT_FIT:
1213                                 if (!fit_check_format(hdr))
1214                                         goto next_sector;
1215
1216                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1217                                 fit_print_contents(hdr);
1218                                 break;
1219 #endif
1220                         default:
1221                                 goto next_sector;
1222                         }
1223
1224 next_sector:            ;
1225                 }
1226 next_bank:      ;
1227         }
1228         return 0;
1229 }
1230 #endif
1231
1232 #if defined(CONFIG_CMD_IMLS_NAND)
1233 static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
1234                 size_t len)
1235 {
1236         void *imgdata;
1237         int ret;
1238
1239         imgdata = malloc(len);
1240         if (!imgdata) {
1241                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
1242                                 nand_dev, off);
1243                 printf("   Low memory(cannot allocate memory for image)\n");
1244                 return -ENOMEM;
1245         }
1246
1247         ret = nand_read_skip_bad(nand, off, &len,
1248                         imgdata);
1249         if (ret < 0 && ret != -EUCLEAN) {
1250                 free(imgdata);
1251                 return ret;
1252         }
1253
1254         if (!image_check_hcrc(imgdata)) {
1255                 free(imgdata);
1256                 return 0;
1257         }
1258
1259         printf("Legacy Image at NAND device %d offset %08llX:\n",
1260                         nand_dev, off);
1261         image_print_contents(imgdata);
1262
1263         puts("   Verifying Checksum ... ");
1264         if (!image_check_dcrc(imgdata))
1265                 puts("Bad Data CRC\n");
1266         else
1267                 puts("OK\n");
1268
1269         free(imgdata);
1270
1271         return 0;
1272 }
1273
1274 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
1275                 size_t len)
1276 {
1277         void *imgdata;
1278         int ret;
1279
1280         imgdata = malloc(len);
1281         if (!imgdata) {
1282                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
1283                                 nand_dev, off);
1284                 printf("   Low memory(cannot allocate memory for image)\n");
1285                 return -ENOMEM;
1286         }
1287
1288         ret = nand_read_skip_bad(nand, off, &len,
1289                         imgdata);
1290         if (ret < 0 && ret != -EUCLEAN) {
1291                 free(imgdata);
1292                 return ret;
1293         }
1294
1295         if (!fit_check_format(imgdata)) {
1296                 free(imgdata);
1297                 return 0;
1298         }
1299
1300         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
1301
1302         fit_print_contents(imgdata);
1303         free(imgdata);
1304
1305         return 0;
1306 }
1307
1308 static int do_imls_nand(void)
1309 {
1310         nand_info_t *nand;
1311         int nand_dev = nand_curr_device;
1312         size_t len;
1313         loff_t off;
1314         u32 buffer[16];
1315
1316         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
1317                 puts("\nNo NAND devices available\n");
1318                 return -ENODEV;
1319         }
1320
1321         printf("\n");
1322
1323         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
1324                 nand = &nand_info[nand_dev];
1325                 if (!nand->name || !nand->size)
1326                         continue;
1327
1328                 for (off = 0; off < nand->size; off += nand->erasesize) {
1329                         const image_header_t *header;
1330                         int ret;
1331
1332                         if (nand_block_isbad(nand, off))
1333                                 continue;
1334
1335                         len = sizeof(buffer);
1336
1337                         ret = nand_read(nand, off, &len, (u8 *)buffer);
1338                         if (ret < 0 && ret != -EUCLEAN) {
1339                                 printf("NAND read error %d at offset %08llX\n",
1340                                                 ret, off);
1341                                 continue;
1342                         }
1343
1344                         switch (genimg_get_format(buffer)) {
1345                         case IMAGE_FORMAT_LEGACY:
1346                                 header = (const image_header_t *)buffer;
1347
1348                                 len = image_get_image_size(header);
1349                                 nand_imls_legacyimage(nand, nand_dev, off, len);
1350                                 break;
1351 #if defined(CONFIG_FIT)
1352                         case IMAGE_FORMAT_FIT:
1353                                 len = fit_get_size(buffer);
1354                                 nand_imls_fitimage(nand, nand_dev, off, len);
1355                                 break;
1356 #endif
1357                         }
1358                 }
1359         }
1360
1361         return 0;
1362 }
1363 #endif
1364
1365 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
1366 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1367 {
1368         int ret_nor = 0, ret_nand = 0;
1369
1370 #if defined(CONFIG_CMD_IMLS)
1371         ret_nor = do_imls_nor();
1372 #endif
1373
1374 #if defined(CONFIG_CMD_IMLS_NAND)
1375         ret_nand = do_imls_nand();
1376 #endif
1377
1378         if (ret_nor)
1379                 return ret_nor;
1380
1381         if (ret_nand)
1382                 return ret_nand;
1383
1384         return (0);
1385 }
1386
1387 U_BOOT_CMD(
1388         imls,   1,              1,      do_imls,
1389         "list all images found in flash",
1390         "\n"
1391         "    - Prints information about all images found at sector/block\n"
1392         "      boundaries in nor/nand flash."
1393 );
1394 #endif
1395
1396 /*******************************************************************/
1397 /* helper routines */
1398 /*******************************************************************/
1399 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1400
1401 #define CONSOLE_ARG     "console="
1402 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
1403
1404 static void fixup_silent_linux(void)
1405 {
1406         char *buf;
1407         const char *env_val;
1408         char *cmdline = getenv("bootargs");
1409         int want_silent;
1410
1411         /*
1412          * Only fix cmdline when requested. The environment variable can be:
1413          *
1414          *      no - we never fixup
1415          *      yes - we always fixup
1416          *      unset - we rely on the console silent flag
1417          */
1418         want_silent = getenv_yesno("silent_linux");
1419         if (want_silent == 0)
1420                 return;
1421         else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
1422                 return;
1423
1424         debug("before silent fix-up: %s\n", cmdline);
1425         if (cmdline && (cmdline[0] != '\0')) {
1426                 char *start = strstr(cmdline, CONSOLE_ARG);
1427
1428                 /* Allocate space for maximum possible new command line */
1429                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
1430                 if (!buf) {
1431                         debug("%s: out of memory\n", __func__);
1432                         return;
1433                 }
1434
1435                 if (start) {
1436                         char *end = strchr(start, ' ');
1437                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
1438
1439                         strncpy(buf, cmdline, num_start_bytes);
1440                         if (end)
1441                                 strcpy(buf + num_start_bytes, end);
1442                         else
1443                                 buf[num_start_bytes] = '\0';
1444                 } else {
1445                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
1446                 }
1447                 env_val = buf;
1448         } else {
1449                 buf = NULL;
1450                 env_val = CONSOLE_ARG;
1451         }
1452
1453         setenv("bootargs", env_val);
1454         debug("after silent fix-up: %s\n", env_val);
1455         free(buf);
1456 }
1457 #endif /* CONFIG_SILENT_CONSOLE */
1458
1459 #if defined(CONFIG_BOOTM_NETBSD) || defined(CONFIG_BOOTM_PLAN9)
1460 static void copy_args(char *dest, int argc, char * const argv[], char delim)
1461 {
1462         int i;
1463
1464         for (i = 0; i < argc; i++) {
1465                 if (i > 0)
1466                         *dest++ = delim;
1467                 strcpy(dest, argv[i]);
1468                 dest += strlen(argv[i]);
1469         }
1470 }
1471 #endif
1472
1473 /*******************************************************************/
1474 /* OS booting routines */
1475 /*******************************************************************/
1476
1477 #ifdef CONFIG_BOOTM_NETBSD
1478 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1479                             bootm_headers_t *images)
1480 {
1481         void (*loader)(bd_t *, image_header_t *, char *, char *);
1482         image_header_t *os_hdr, *hdr;
1483         ulong kernel_data, kernel_len;
1484         char *consdev;
1485         char *cmdline;
1486
1487         if (flag != BOOTM_STATE_OS_GO)
1488                 return 0;
1489
1490 #if defined(CONFIG_FIT)
1491         if (!images->legacy_hdr_valid) {
1492                 fit_unsupported_reset("NetBSD");
1493                 return 1;
1494         }
1495 #endif
1496         hdr = images->legacy_hdr_os;
1497
1498         /*
1499          * Booting a (NetBSD) kernel image
1500          *
1501          * This process is pretty similar to a standalone application:
1502          * The (first part of an multi-) image must be a stage-2 loader,
1503          * which in turn is responsible for loading & invoking the actual
1504          * kernel.  The only differences are the parameters being passed:
1505          * besides the board info strucure, the loader expects a command
1506          * line, the name of the console device, and (optionally) the
1507          * address of the original image header.
1508          */
1509         os_hdr = NULL;
1510         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1511                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1512                 if (kernel_len)
1513                         os_hdr = hdr;
1514         }
1515
1516         consdev = "";
1517 #if   defined(CONFIG_8xx_CONS_SMC1)
1518         consdev = "smc1";
1519 #elif defined(CONFIG_8xx_CONS_SMC2)
1520         consdev = "smc2";
1521 #elif defined(CONFIG_8xx_CONS_SCC2)
1522         consdev = "scc2";
1523 #elif defined(CONFIG_8xx_CONS_SCC3)
1524         consdev = "scc3";
1525 #endif
1526
1527         if (argc > 0) {
1528                 ulong len;
1529                 int   i;
1530
1531                 for (i = 0, len = 0; i < argc; i += 1)
1532                         len += strlen(argv[i]) + 1;
1533                 cmdline = malloc(len);
1534                 copy_args(cmdline, argc, argv, ' ');
1535         } else if ((cmdline = getenv("bootargs")) == NULL) {
1536                 cmdline = "";
1537         }
1538
1539         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1540
1541         printf("## Transferring control to NetBSD stage-2 loader "
1542                 "(at address %08lx) ...\n",
1543                 (ulong)loader);
1544
1545         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1546
1547         /*
1548          * NetBSD Stage-2 Loader Parameters:
1549          *   arg[0]: pointer to board info data
1550          *   arg[1]: image load address
1551          *   arg[2]: char pointer to the console device to use
1552          *   arg[3]: char pointer to the boot arguments
1553          */
1554         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1555
1556         return 1;
1557 }
1558 #endif /* CONFIG_BOOTM_NETBSD*/
1559
1560 #ifdef CONFIG_LYNXKDI
1561 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1562                              bootm_headers_t *images)
1563 {
1564         image_header_t *hdr = &images->legacy_hdr_os_copy;
1565
1566         if (flag != BOOTM_STATE_OS_GO)
1567                 return 0;
1568
1569 #if defined(CONFIG_FIT)
1570         if (!images->legacy_hdr_valid) {
1571                 fit_unsupported_reset("Lynx");
1572                 return 1;
1573         }
1574 #endif
1575
1576         lynxkdi_boot((image_header_t *)hdr);
1577
1578         return 1;
1579 }
1580 #endif /* CONFIG_LYNXKDI */
1581
1582 #ifdef CONFIG_BOOTM_RTEMS
1583 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1584                            bootm_headers_t *images)
1585 {
1586         void (*entry_point)(bd_t *);
1587
1588         if (flag != BOOTM_STATE_OS_GO)
1589                 return 0;
1590
1591 #if defined(CONFIG_FIT)
1592         if (!images->legacy_hdr_valid) {
1593                 fit_unsupported_reset("RTEMS");
1594                 return 1;
1595         }
1596 #endif
1597
1598         entry_point = (void (*)(bd_t *))images->ep;
1599
1600         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1601                 (ulong)entry_point);
1602
1603         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1604
1605         /*
1606          * RTEMS Parameters:
1607          *   r3: ptr to board info data
1608          */
1609         (*entry_point)(gd->bd);
1610
1611         return 1;
1612 }
1613 #endif /* CONFIG_BOOTM_RTEMS */
1614
1615 #if defined(CONFIG_BOOTM_OSE)
1616 static int do_bootm_ose(int flag, int argc, char * const argv[],
1617                            bootm_headers_t *images)
1618 {
1619         void (*entry_point)(void);
1620
1621         if (flag != BOOTM_STATE_OS_GO)
1622                 return 0;
1623
1624 #if defined(CONFIG_FIT)
1625         if (!images->legacy_hdr_valid) {
1626                 fit_unsupported_reset("OSE");
1627                 return 1;
1628         }
1629 #endif
1630
1631         entry_point = (void (*)(void))images->ep;
1632
1633         printf("## Transferring control to OSE (at address %08lx) ...\n",
1634                 (ulong)entry_point);
1635
1636         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1637
1638         /*
1639          * OSE Parameters:
1640          *   None
1641          */
1642         (*entry_point)();
1643
1644         return 1;
1645 }
1646 #endif /* CONFIG_BOOTM_OSE */
1647
1648 #if defined(CONFIG_BOOTM_PLAN9)
1649 static int do_bootm_plan9(int flag, int argc, char * const argv[],
1650                            bootm_headers_t *images)
1651 {
1652         void (*entry_point)(void);
1653         char *s;
1654
1655         if (flag != BOOTM_STATE_OS_GO)
1656                 return 0;
1657
1658 #if defined(CONFIG_FIT)
1659         if (!images->legacy_hdr_valid) {
1660                 fit_unsupported_reset("Plan 9");
1661                 return 1;
1662         }
1663 #endif
1664
1665         /* See README.plan9 */
1666         s = getenv("confaddr");
1667         if (s != NULL) {
1668                 char *confaddr = (char *)simple_strtoul(s, NULL, 16);
1669
1670                 if (argc > 0) {
1671                         copy_args(confaddr, argc, argv, '\n');
1672                 } else {
1673                         s = getenv("bootargs");
1674                         if (s != NULL)
1675                                 strcpy(confaddr, s);
1676                 }
1677         }
1678
1679         entry_point = (void (*)(void))images->ep;
1680
1681         printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
1682                 (ulong)entry_point);
1683
1684         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1685
1686         /*
1687          * Plan 9 Parameters:
1688          *   None
1689          */
1690         (*entry_point)();
1691
1692         return 1;
1693 }
1694 #endif /* CONFIG_BOOTM_PLAN9 */
1695
1696 #if defined(CONFIG_BOOTM_VXWORKS) && \
1697         (defined(CONFIG_PPC) || defined(CONFIG_ARM))
1698
1699 void do_bootvx_fdt(bootm_headers_t *images)
1700 {
1701 #if defined(CONFIG_OF_LIBFDT)
1702         int ret;
1703         char *bootline;
1704         ulong of_size = images->ft_len;
1705         char **of_flat_tree = &images->ft_addr;
1706         struct lmb *lmb = &images->lmb;
1707
1708         if (*of_flat_tree) {
1709                 boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree);
1710
1711                 ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
1712                 if (ret)
1713                         return;
1714
1715                 ret = fdt_add_subnode(*of_flat_tree, 0, "chosen");
1716                 if ((ret >= 0 || ret == -FDT_ERR_EXISTS)) {
1717                         bootline = getenv("bootargs");
1718                         if (bootline) {
1719                                 ret = fdt_find_and_setprop(*of_flat_tree,
1720                                                 "/chosen", "bootargs",
1721                                                 bootline,
1722                                                 strlen(bootline) + 1, 1);
1723                                 if (ret < 0) {
1724                                         printf("## ERROR: %s : %s\n", __func__,
1725                                                fdt_strerror(ret));
1726                                         return;
1727                                 }
1728                         }
1729                 } else {
1730                         printf("## ERROR: %s : %s\n", __func__,
1731                                fdt_strerror(ret));
1732                         return;
1733                 }
1734         }
1735 #endif
1736
1737         boot_prep_vxworks(images);
1738
1739         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1740
1741 #if defined(CONFIG_OF_LIBFDT)
1742         printf("## Starting vxWorks at 0x%08lx, device tree at 0x%08lx ...\n",
1743                (ulong)images->ep, (ulong)*of_flat_tree);
1744 #else
1745         printf("## Starting vxWorks at 0x%08lx\n", (ulong)images->ep);
1746 #endif
1747
1748         boot_jump_vxworks(images);
1749
1750         puts("## vxWorks terminated\n");
1751 }
1752
1753 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1754                              bootm_headers_t *images)
1755 {
1756         if (flag != BOOTM_STATE_OS_GO)
1757                 return 0;
1758
1759 #if defined(CONFIG_FIT)
1760         if (!images->legacy_hdr_valid) {
1761                 fit_unsupported_reset("VxWorks");
1762                 return 1;
1763         }
1764 #endif
1765
1766         do_bootvx_fdt(images);
1767
1768         return 1;
1769 }
1770 #endif
1771
1772 #if defined(CONFIG_CMD_ELF)
1773 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1774                             bootm_headers_t *images)
1775 {
1776         char *local_args[2];
1777         char str[16];
1778
1779         if (flag != BOOTM_STATE_OS_GO)
1780                 return 0;
1781
1782 #if defined(CONFIG_FIT)
1783         if (!images->legacy_hdr_valid) {
1784                 fit_unsupported_reset("QNX");
1785                 return 1;
1786         }
1787 #endif
1788
1789         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1790         local_args[0] = argv[0];
1791         local_args[1] = str;    /* and provide it via the arguments */
1792         do_bootelf(NULL, 0, 2, local_args);
1793
1794         return 1;
1795 }
1796 #endif
1797
1798 #ifdef CONFIG_INTEGRITY
1799 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1800                            bootm_headers_t *images)
1801 {
1802         void (*entry_point)(void);
1803
1804         if (flag != BOOTM_STATE_OS_GO)
1805                 return 0;
1806
1807 #if defined(CONFIG_FIT)
1808         if (!images->legacy_hdr_valid) {
1809                 fit_unsupported_reset("INTEGRITY");
1810                 return 1;
1811         }
1812 #endif
1813
1814         entry_point = (void (*)(void))images->ep;
1815
1816         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1817                 (ulong)entry_point);
1818
1819         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1820
1821         /*
1822          * INTEGRITY Parameters:
1823          *   None
1824          */
1825         (*entry_point)();
1826
1827         return 1;
1828 }
1829 #endif
1830
1831 #ifdef CONFIG_CMD_BOOTZ
1832
1833 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
1834 {
1835         /* Please define bootz_setup() for your platform */
1836
1837         puts("Your platform's zImage format isn't supported yet!\n");
1838         return -1;
1839 }
1840
1841 /*
1842  * zImage booting support
1843  */
1844 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1845                         char * const argv[], bootm_headers_t *images)
1846 {
1847         int ret;
1848         ulong zi_start, zi_end;
1849
1850         ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
1851                               images, 1);
1852
1853         /* Setup Linux kernel zImage entry point */
1854         if (!argc) {
1855                 images->ep = load_addr;
1856                 debug("*  kernel: default image load address = 0x%08lx\n",
1857                                 load_addr);
1858         } else {
1859                 images->ep = simple_strtoul(argv[0], NULL, 16);
1860                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1861                         images->ep);
1862         }
1863
1864         ret = bootz_setup(images->ep, &zi_start, &zi_end);
1865         if (ret != 0)
1866                 return 1;
1867
1868         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1869
1870         /*
1871          * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
1872          * have a header that provide this informaiton.
1873          */
1874         if (bootm_find_ramdisk(flag, argc, argv))
1875                 return 1;
1876
1877 #if defined(CONFIG_OF_LIBFDT)
1878         if (bootm_find_fdt(flag, argc, argv))
1879                 return 1;
1880 #endif
1881
1882         return 0;
1883 }
1884
1885 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1886 {
1887         int ret;
1888
1889         /* Consume 'bootz' */
1890         argc--; argv++;
1891
1892         if (bootz_start(cmdtp, flag, argc, argv, &images))
1893                 return 1;
1894
1895         /*
1896          * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
1897          * disable interrupts ourselves
1898          */
1899         bootm_disable_interrupts();
1900
1901         images.os.os = IH_OS_LINUX;
1902         ret = do_bootm_states(cmdtp, flag, argc, argv,
1903                               BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
1904                               BOOTM_STATE_OS_GO,
1905                               &images, 1);
1906
1907         return ret;
1908 }
1909
1910 #ifdef CONFIG_SYS_LONGHELP
1911 static char bootz_help_text[] =
1912         "[addr [initrd[:size]] [fdt]]\n"
1913         "    - boot Linux zImage stored in memory\n"
1914         "\tThe argument 'initrd' is optional and specifies the address\n"
1915         "\tof the initrd in memory. The optional argument ':size' allows\n"
1916         "\tspecifying the size of RAW initrd.\n"
1917 #if defined(CONFIG_OF_LIBFDT)
1918         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1919         "\ta third argument is required which is the address of the\n"
1920         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1921         "\tuse a '-' for the second argument. If you do not pass a third\n"
1922         "\ta bd_info struct will be passed instead\n"
1923 #endif
1924         "";
1925 #endif
1926
1927 U_BOOT_CMD(
1928         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1929         "boot Linux zImage image from memory", bootz_help_text
1930 );
1931 #endif  /* CONFIG_CMD_BOOTZ */