common/cmd_bootm.c

   1 /*
   2  * (C) Copyright 2000-2009
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24
  25 /*
  26  * Boot support
  27  */
  28 #include <common.h>
  29 #include <watchdog.h>
  30 #include <command.h>
  31 #include <image.h>
  32 #include <malloc.h>
  33 #include <u-boot/zlib.h>
  34 #include <bzlib.h>
  35 #include <environment.h>
  36 #include <lmb.h>
  37 #include <linux/ctype.h>
  38 #include <asm/byteorder.h>
  39 #include <linux/compiler.h>
  40
  41 #if defined(CONFIG_CMD_USB)
  42 #include <usb.h>
  43 #endif
  44
  45 #ifdef CONFIG_SYS_HUSH_PARSER
  46 #include <hush.h>
  47 #endif
  48
  49 #if defined(CONFIG_OF_LIBFDT)
  50 #include <libfdt.h>
  51 #include <fdt_support.h>
  52 #endif
  53
  54 #ifdef CONFIG_LZMA
  55 #include <lzma/LzmaTypes.h>
  56 #include <lzma/LzmaDec.h>
  57 #include <lzma/LzmaTools.h>
  58 #endif /* CONFIG_LZMA */
  59
  60 #ifdef CONFIG_LZO
  61 #include <linux/lzo.h>
  62 #endif /* CONFIG_LZO */
  63
  64 DECLARE_GLOBAL_DATA_PTR;
  65
  66 #ifndef CONFIG_SYS_BOOTM_LEN
  67 #define CONFIG_SYS_BOOTM_LEN    0x800000        /* use 8MByte as default max gunzip size */
  68 #endif
  69
  70 #ifdef CONFIG_BZIP2
  71 extern void bz_internal_error(int);
  72 #endif
  73
  74 #if defined(CONFIG_CMD_IMI)
  75 static int image_info(unsigned long addr);
  76 #endif
  77
  78 #if defined(CONFIG_CMD_IMLS)
  79 #include <flash.h>
  80 #include <mtd/cfi_flash.h>
  81 extern flash_info_t flash_info[]; /* info for FLASH chips */
  82 #endif
  83
  84 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
  85 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  86 #endif
  87
  88 #include <linux/err.h>
  89 #include <nand.h>
  90
  91 #ifdef CONFIG_SILENT_CONSOLE
  92 static void fixup_silent_linux(void);
  93 #endif
  94
  95 static image_header_t *image_get_kernel(ulong img_addr, int verify);
  96 #if defined(CONFIG_FIT)
  97 static int fit_check_kernel(const void *fit, int os_noffset, int verify);
  98 #endif
  99
 100 static void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 101                                 char * const argv[], bootm_headers_t *images,
 102                                 ulong *os_data, ulong *os_len);
 103
 104 /*
 105  *  Continue booting an OS image; caller already has:
 106  *  - copied image header to global variable `header'
 107  *  - checked header magic number, checksums (both header & image),
 108  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
 109  *  - loaded (first part of) image to header load address,
 110  *  - disabled interrupts.
 111  */
 112 typedef int boot_os_fn(int flag, int argc, char * const argv[],
 113                         bootm_headers_t *images); /* pointers to os/initrd/fdt */
 114
 115 #ifdef CONFIG_BOOTM_LINUX
 116 extern boot_os_fn do_bootm_linux;
 117 #endif
 118 #ifdef CONFIG_BOOTM_NETBSD
 119 static boot_os_fn do_bootm_netbsd;
 120 #endif
 121 #if defined(CONFIG_LYNXKDI)
 122 static boot_os_fn do_bootm_lynxkdi;
 123 extern void lynxkdi_boot(image_header_t *);
 124 #endif
 125 #ifdef CONFIG_BOOTM_RTEMS
 126 static boot_os_fn do_bootm_rtems;
 127 #endif
 128 #if defined(CONFIG_BOOTM_OSE)
 129 static boot_os_fn do_bootm_ose;
 130 #endif
 131 #if defined(CONFIG_CMD_ELF)
 132 static boot_os_fn do_bootm_vxworks;
 133 static boot_os_fn do_bootm_qnxelf;
 134 int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 135 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 136 #endif
 137 #if defined(CONFIG_INTEGRITY)
 138 static boot_os_fn do_bootm_integrity;
 139 #endif
 140
 141 static boot_os_fn *boot_os[] = {
 142 #ifdef CONFIG_BOOTM_LINUX
 143         [IH_OS_LINUX] = do_bootm_linux,
 144 #endif
 145 #ifdef CONFIG_BOOTM_NETBSD
 146         [IH_OS_NETBSD] = do_bootm_netbsd,
 147 #endif
 148 #ifdef CONFIG_LYNXKDI
 149         [IH_OS_LYNXOS] = do_bootm_lynxkdi,
 150 #endif
 151 #ifdef CONFIG_BOOTM_RTEMS
 152         [IH_OS_RTEMS] = do_bootm_rtems,
 153 #endif
 154 #if defined(CONFIG_BOOTM_OSE)
 155         [IH_OS_OSE] = do_bootm_ose,
 156 #endif
 157 #if defined(CONFIG_CMD_ELF)
 158         [IH_OS_VXWORKS] = do_bootm_vxworks,
 159         [IH_OS_QNX] = do_bootm_qnxelf,
 160 #endif
 161 #ifdef CONFIG_INTEGRITY
 162         [IH_OS_INTEGRITY] = do_bootm_integrity,
 163 #endif
 164 };
 165
 166 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
 167
 168 /* Allow for arch specific config before we boot */
 169 static void __arch_preboot_os(void)
 170 {
 171         /* please define platform specific arch_preboot_os() */
 172 }
 173 void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
 174
 175 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
 176
 177 #ifdef CONFIG_LMB
 178 static void boot_start_lmb(bootm_headers_t *images)
 179 {
 180         ulong           mem_start;
 181         phys_size_t     mem_size;
 182
 183         lmb_init(&images->lmb);
 184
 185         mem_start = getenv_bootm_low();
 186         mem_size = getenv_bootm_size();
 187
 188         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
 189
 190         arch_lmb_reserve(&images->lmb);
 191         board_lmb_reserve(&images->lmb);
 192 }
 193 #else
 194 #define lmb_reserve(lmb, base, size)
 195 static inline void boot_start_lmb(bootm_headers_t *images) { }
 196 #endif
 197
 198 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 199 {
 200         void            *os_hdr;
 201         int             ret;
 202
 203         memset((void *)&images, 0, sizeof(images));
 204         images.verify = getenv_yesno("verify");
 205
 206         boot_start_lmb(&images);
 207
 208         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
 209
 210         /* get kernel image header, start address and length */
 211         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
 212                         &images, &images.os.image_start, &images.os.image_len);
 213         if (images.os.image_len == 0) {
 214                 puts("ERROR: can't get kernel image!\n");
 215                 return 1;
 216         }
 217
 218         /* get image parameters */
 219         switch (genimg_get_format(os_hdr)) {
 220         case IMAGE_FORMAT_LEGACY:
 221                 images.os.type = image_get_type(os_hdr);
 222                 images.os.comp = image_get_comp(os_hdr);
 223                 images.os.os = image_get_os(os_hdr);
 224
 225                 images.os.end = image_get_image_end(os_hdr);
 226                 images.os.load = image_get_load(os_hdr);
 227                 break;
 228 #if defined(CONFIG_FIT)
 229         case IMAGE_FORMAT_FIT:
 230                 if (fit_image_get_type(images.fit_hdr_os,
 231                                         images.fit_noffset_os, &images.os.type)) {
 232                         puts("Can't get image type!\n");
 233                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 234                         return 1;
 235                 }
 236
 237                 if (fit_image_get_comp(images.fit_hdr_os,
 238                                         images.fit_noffset_os, &images.os.comp)) {
 239                         puts("Can't get image compression!\n");
 240                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 241                         return 1;
 242                 }
 243
 244                 if (fit_image_get_os(images.fit_hdr_os,
 245                                         images.fit_noffset_os, &images.os.os)) {
 246                         puts("Can't get image OS!\n");
 247                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 248                         return 1;
 249                 }
 250
 251                 images.os.end = fit_get_end(images.fit_hdr_os);
 252
 253                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 254                                         &images.os.load)) {
 255                         puts("Can't get image load address!\n");
 256                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 257                         return 1;
 258                 }
 259                 break;
 260 #endif
 261         default:
 262                 puts("ERROR: unknown image format type!\n");
 263                 return 1;
 264         }
 265
 266         /* find kernel entry point */
 267         if (images.legacy_hdr_valid) {
 268                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 269 #if defined(CONFIG_FIT)
 270         } else if (images.fit_uname_os) {
 271                 ret = fit_image_get_entry(images.fit_hdr_os,
 272                                 images.fit_noffset_os, &images.ep);
 273                 if (ret) {
 274                         puts("Can't get entry point property!\n");
 275                         return 1;
 276                 }
 277 #endif
 278         } else {
 279                 puts("Could not find kernel entry point!\n");
 280                 return 1;
 281         }
 282
 283         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 284                 images.os.load = images.os.image_start;
 285                 images.ep += images.os.load;
 286         }
 287
 288         if (((images.os.type == IH_TYPE_KERNEL) ||
 289              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 290              (images.os.type == IH_TYPE_MULTI)) &&
 291             (images.os.os == IH_OS_LINUX)) {
 292                 /* find ramdisk */
 293                 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 294                                 &images.rd_start, &images.rd_end);
 295                 if (ret) {
 296                         puts("Ramdisk image is corrupt or invalid\n");
 297                         return 1;
 298                 }
 299
 300 #if defined(CONFIG_OF_LIBFDT)
 301                 /* find flattened device tree */
 302                 ret = boot_get_fdt(flag, argc, argv, &images,
 303                                    &images.ft_addr, &images.ft_len);
 304                 if (ret) {
 305                         puts("Could not find a valid device tree\n");
 306                         return 1;
 307                 }
 308
 309                 set_working_fdt_addr(images.ft_addr);
 310 #endif
 311         }
 312
 313         images.os.start = (ulong)os_hdr;
 314         images.state = BOOTM_STATE_START;
 315
 316         return 0;
 317 }
 318
 319 #define BOOTM_ERR_RESET         -1
 320 #define BOOTM_ERR_OVERLAP       -2
 321 #define BOOTM_ERR_UNIMPLEMENTED -3
 322 static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
 323 {
 324         uint8_t comp = os.comp;
 325         ulong load = os.load;
 326         ulong blob_start = os.start;
 327         ulong blob_end = os.end;
 328         ulong image_start = os.image_start;
 329         ulong image_len = os.image_len;
 330         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 331         int no_overlap = 0;
 332 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 333         int ret;
 334 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 335
 336         const char *type_name = genimg_get_type_name(os.type);
 337
 338         switch (comp) {
 339         case IH_COMP_NONE:
 340                 if (load == blob_start || load == image_start) {
 341                         printf("   XIP %s ... ", type_name);
 342                         no_overlap = 1;
 343                 } else {
 344                         printf("   Loading %s ... ", type_name);
 345                         memmove_wd((void *)load, (void *)image_start,
 346                                         image_len, CHUNKSZ);
 347                 }
 348                 *load_end = load + image_len;
 349                 puts("OK\n");
 350                 break;
 351 #ifdef CONFIG_GZIP
 352         case IH_COMP_GZIP:
 353                 printf("   Uncompressing %s ... ", type_name);
 354                 if (gunzip((void *)load, unc_len,
 355                                 (uchar *)image_start, &image_len) != 0) {
 356                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 357                                 "error - must RESET board to recover\n");
 358                         if (boot_progress)
 359                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 360                         return BOOTM_ERR_RESET;
 361                 }
 362
 363                 *load_end = load + image_len;
 364                 break;
 365 #endif /* CONFIG_GZIP */
 366 #ifdef CONFIG_BZIP2
 367         case IH_COMP_BZIP2:
 368                 printf("   Uncompressing %s ... ", type_name);
 369                 /*
 370                  * If we've got less than 4 MB of malloc() space,
 371                  * use slower decompression algorithm which requires
 372                  * at most 2300 KB of memory.
 373                  */
 374                 int i = BZ2_bzBuffToBuffDecompress((char *)load,
 375                                         &unc_len, (char *)image_start, image_len,
 376                                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 377                 if (i != BZ_OK) {
 378                         printf("BUNZIP2: uncompress or overwrite error %d "
 379                                 "- must RESET board to recover\n", i);
 380                         if (boot_progress)
 381                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 382                         return BOOTM_ERR_RESET;
 383                 }
 384
 385                 *load_end = load + unc_len;
 386                 break;
 387 #endif /* CONFIG_BZIP2 */
 388 #ifdef CONFIG_LZMA
 389         case IH_COMP_LZMA: {
 390                 SizeT lzma_len = unc_len;
 391                 printf("   Uncompressing %s ... ", type_name);
 392
 393                 ret = lzmaBuffToBuffDecompress(
 394                         (unsigned char *)load, &lzma_len,
 395                         (unsigned char *)image_start, image_len);
 396                 unc_len = lzma_len;
 397                 if (ret != SZ_OK) {
 398                         printf("LZMA: uncompress or overwrite error %d "
 399                                 "- must RESET board to recover\n", ret);
 400                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 401                         return BOOTM_ERR_RESET;
 402                 }
 403                 *load_end = load + unc_len;
 404                 break;
 405         }
 406 #endif /* CONFIG_LZMA */
 407 #ifdef CONFIG_LZO
 408         case IH_COMP_LZO:
 409                 printf("   Uncompressing %s ... ", type_name);
 410
 411                 ret = lzop_decompress((const unsigned char *)image_start,
 412                                           image_len, (unsigned char *)load,
 413                                           &unc_len);
 414                 if (ret != LZO_E_OK) {
 415                         printf("LZO: uncompress or overwrite error %d "
 416                               "- must RESET board to recover\n", ret);
 417                         if (boot_progress)
 418                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 419                         return BOOTM_ERR_RESET;
 420                 }
 421
 422                 *load_end = load + unc_len;
 423                 break;
 424 #endif /* CONFIG_LZO */
 425         default:
 426                 printf("Unimplemented compression type %d\n", comp);
 427                 return BOOTM_ERR_UNIMPLEMENTED;
 428         }
 429
 430         flush_cache(load, (*load_end - load) * sizeof(ulong));
 431
 432         puts("OK\n");
 433         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 434         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 435
 436         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 437                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 438                         blob_start, blob_end);
 439                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 440                         *load_end);
 441
 442                 return BOOTM_ERR_OVERLAP;
 443         }
 444
 445         return 0;
 446 }
 447
 448 static int bootm_start_standalone(ulong iflag, int argc, char * const argv[])
 449 {
 450         char  *s;
 451         int   (*appl)(int, char * const []);
 452
 453         /* Don't start if "autostart" is set to "no" */
 454         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 455                 setenv_hex("filesize", images.os.image_len);
 456                 return 0;
 457         }
 458         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
 459         (*appl)(argc-1, &argv[1]);
 460         return 0;
 461 }
 462
 463 /* we overload the cmd field with our state machine info instead of a
 464  * function pointer */
 465 static cmd_tbl_t cmd_bootm_sub[] = {
 466         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 467         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 468 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 469         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 470 #endif
 471 #ifdef CONFIG_OF_LIBFDT
 472         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 473 #endif
 474         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 475         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 476         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 477         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 478 };
 479
 480 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 481                         char * const argv[])
 482 {
 483         int ret = 0;
 484         long state;
 485         cmd_tbl_t *c;
 486         boot_os_fn *boot_fn;
 487
 488         c = find_cmd_tbl(argv[1], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 489
 490         if (c) {
 491                 state = (long)c->cmd;
 492
 493                 /* treat start special since it resets the state machine */
 494                 if (state == BOOTM_STATE_START) {
 495                         argc--;
 496                         argv++;
 497                         return bootm_start(cmdtp, flag, argc, argv);
 498                 }
 499         } else {
 500                 /* Unrecognized command */
 501                 return CMD_RET_USAGE;
 502         }
 503
 504         if (images.state < BOOTM_STATE_START ||
 505             images.state >= state) {
 506                 printf("Trying to execute a command out of order\n");
 507                 return CMD_RET_USAGE;
 508         }
 509
 510         images.state |= state;
 511         boot_fn = boot_os[images.os.os];
 512
 513         switch (state) {
 514                 ulong load_end;
 515                 case BOOTM_STATE_START:
 516                         /* should never occur */
 517                         break;
 518                 case BOOTM_STATE_LOADOS:
 519                         ret = bootm_load_os(images.os, &load_end, 0);
 520                         if (ret)
 521                                 return ret;
 522
 523                         lmb_reserve(&images.lmb, images.os.load,
 524                                         (load_end - images.os.load));
 525                         break;
 526 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 527                 case BOOTM_STATE_RAMDISK:
 528                 {
 529                         ulong rd_len = images.rd_end - images.rd_start;
 530
 531                         ret = boot_ramdisk_high(&images.lmb, images.rd_start,
 532                                 rd_len, &images.initrd_start, &images.initrd_end);
 533                         if (ret)
 534                                 return ret;
 535
 536                         setenv_hex("initrd_start", images.initrd_start);
 537                         setenv_hex("initrd_end", images.initrd_end);
 538                 }
 539                         break;
 540 #endif
 541 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
 542                 case BOOTM_STATE_FDT:
 543                 {
 544                         boot_fdt_add_mem_rsv_regions(&images.lmb,
 545                                                      images.ft_addr);
 546                         ret = boot_relocate_fdt(&images.lmb,
 547                                 &images.ft_addr, &images.ft_len);
 548                         break;
 549                 }
 550 #endif
 551                 case BOOTM_STATE_OS_CMDLINE:
 552                         ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, &images);
 553                         if (ret)
 554                                 printf("cmdline subcommand not supported\n");
 555                         break;
 556                 case BOOTM_STATE_OS_BD_T:
 557                         ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, &images);
 558                         if (ret)
 559                                 printf("bdt subcommand not supported\n");
 560                         break;
 561                 case BOOTM_STATE_OS_PREP:
 562                         ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, &images);
 563                         if (ret)
 564                                 printf("prep subcommand not supported\n");
 565                         break;
 566                 case BOOTM_STATE_OS_GO:
 567                         disable_interrupts();
 568 #ifdef CONFIG_NETCONSOLE
 569                         /*
 570                          * Stop the ethernet stack if NetConsole could have
 571                          * left it up
 572                          */
 573                         eth_halt();
 574 #endif
 575                         arch_preboot_os();
 576                         boot_fn(BOOTM_STATE_OS_GO, argc, argv, &images);
 577                         break;
 578         }
 579
 580         return ret;
 581 }
 582
 583 /*******************************************************************/
 584 /* bootm - boot application image from image in memory */
 585 /*******************************************************************/
 586
 587 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 588 {
 589         ulong           iflag;
 590         ulong           load_end = 0;
 591         int             ret;
 592         boot_os_fn      *boot_fn;
 593 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 594         static int relocated = 0;
 595
 596         if (!relocated) {
 597                 int i;
 598
 599                 /* relocate boot function table */
 600                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
 601                         if (boot_os[i] != NULL)
 602                                 boot_os[i] += gd->reloc_off;
 603
 604                 /* relocate names of sub-command table */
 605                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
 606                         cmd_bootm_sub[i].name += gd->reloc_off;
 607
 608                 relocated = 1;
 609         }
 610 #endif
 611
 612         /* determine if we have a sub command */
 613         if (argc > 1) {
 614                 char *endp;
 615
 616                 simple_strtoul(argv[1], &endp, 16);
 617                 /* endp pointing to NULL means that argv[1] was just a
 618                  * valid number, pass it along to the normal bootm processing
 619                  *
 620                  * If endp is ':' or '#' assume a FIT identifier so pass
 621                  * along for normal processing.
 622                  *
 623                  * Right now we assume the first arg should never be '-'
 624                  */
 625                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 626                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 627         }
 628
 629         if (bootm_start(cmdtp, flag, argc, argv))
 630                 return 1;
 631
 632         /*
 633          * We have reached the point of no return: we are going to
 634          * overwrite all exception vector code, so we cannot easily
 635          * recover from any failures any more...
 636          */
 637         iflag = disable_interrupts();
 638
 639 #ifdef CONFIG_NETCONSOLE
 640         /* Stop the ethernet stack if NetConsole could have left it up */
 641         eth_halt();
 642 #endif
 643
 644 #if defined(CONFIG_CMD_USB)
 645         /*
 646          * turn off USB to prevent the host controller from writing to the
 647          * SDRAM while Linux is booting. This could happen (at least for OHCI
 648          * controller), because the HCCA (Host Controller Communication Area)
 649          * lies within the SDRAM and the host controller writes continously to
 650          * this area (as busmaster!). The HccaFrameNumber is for example
 651          * updated every 1 ms within the HCCA structure in SDRAM! For more
 652          * details see the OpenHCI specification.
 653          */
 654         usb_stop();
 655 #endif
 656
 657         ret = bootm_load_os(images.os, &load_end, 1);
 658
 659         if (ret < 0) {
 660                 if (ret == BOOTM_ERR_RESET)
 661                         do_reset(cmdtp, flag, argc, argv);
 662                 if (ret == BOOTM_ERR_OVERLAP) {
 663                         if (images.legacy_hdr_valid) {
 664                                 image_header_t *hdr;
 665                                 hdr = &images.legacy_hdr_os_copy;
 666                                 if (image_get_type(hdr) == IH_TYPE_MULTI)
 667                                         puts("WARNING: legacy format multi "
 668                                                 "component image "
 669                                                 "overwritten\n");
 670                         } else {
 671                                 puts("ERROR: new format image overwritten - "
 672                                         "must RESET the board to recover\n");
 673                                 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 674                                 do_reset(cmdtp, flag, argc, argv);
 675                         }
 676                 }
 677                 if (ret == BOOTM_ERR_UNIMPLEMENTED) {
 678                         if (iflag)
 679                                 enable_interrupts();
 680                         bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 681                         return 1;
 682                 }
 683         }
 684
 685         lmb_reserve(&images.lmb, images.os.load, (load_end - images.os.load));
 686
 687         if (images.os.type == IH_TYPE_STANDALONE) {
 688                 if (iflag)
 689                         enable_interrupts();
 690                 /* This may return when 'autostart' is 'no' */
 691                 bootm_start_standalone(iflag, argc, argv);
 692                 return 0;
 693         }
 694
 695         bootstage_mark(BOOTSTAGE_ID_CHECK_BOOT_OS);
 696
 697 #ifdef CONFIG_SILENT_CONSOLE
 698         if (images.os.os == IH_OS_LINUX)
 699                 fixup_silent_linux();
 700 #endif
 701
 702         boot_fn = boot_os[images.os.os];
 703
 704         if (boot_fn == NULL) {
 705                 if (iflag)
 706                         enable_interrupts();
 707                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 708                         genimg_get_os_name(images.os.os), images.os.os);
 709                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 710                 return 1;
 711         }
 712
 713         arch_preboot_os();
 714
 715         boot_fn(0, argc, argv, &images);
 716
 717         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
 718 #ifdef DEBUG
 719         puts("\n## Control returned to monitor - resetting...\n");
 720 #endif
 721         do_reset(cmdtp, flag, argc, argv);
 722
 723         return 1;
 724 }
 725
 726 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
 727 {
 728         const char *ep = getenv("autostart");
 729
 730         if (ep && !strcmp(ep, "yes")) {
 731                 char *local_args[2];
 732                 local_args[0] = (char *)cmd;
 733                 local_args[1] = NULL;
 734                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
 735                 return do_bootm(cmdtp, 0, 1, local_args);
 736         }
 737
 738         return 0;
 739 }
 740
 741 /**
 742  * image_get_kernel - verify legacy format kernel image
 743  * @img_addr: in RAM address of the legacy format image to be verified
 744  * @verify: data CRC verification flag
 745  *
 746  * image_get_kernel() verifies legacy image integrity and returns pointer to
 747  * legacy image header if image verification was completed successfully.
 748  *
 749  * returns:
 750  *     pointer to a legacy image header if valid image was found
 751  *     otherwise return NULL
 752  */
 753 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 754 {
 755         image_header_t *hdr = (image_header_t *)img_addr;
 756
 757         if (!image_check_magic(hdr)) {
 758                 puts("Bad Magic Number\n");
 759                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 760                 return NULL;
 761         }
 762         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 763
 764         if (!image_check_hcrc(hdr)) {
 765                 puts("Bad Header Checksum\n");
 766                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 767                 return NULL;
 768         }
 769
 770         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 771         image_print_contents(hdr);
 772
 773         if (verify) {
 774                 puts("   Verifying Checksum ... ");
 775                 if (!image_check_dcrc(hdr)) {
 776                         printf("Bad Data CRC\n");
 777                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 778                         return NULL;
 779                 }
 780                 puts("OK\n");
 781         }
 782         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 783
 784         if (!image_check_target_arch(hdr)) {
 785                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 786                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 787                 return NULL;
 788         }
 789         return hdr;
 790 }
 791
 792 /**
 793  * fit_check_kernel - verify FIT format kernel subimage
 794  * @fit_hdr: pointer to the FIT image header
 795  * os_noffset: kernel subimage node offset within FIT image
 796  * @verify: data CRC verification flag
 797  *
 798  * fit_check_kernel() verifies integrity of the kernel subimage and from
 799  * specified FIT image.
 800  *
 801  * returns:
 802  *     1, on success
 803  *     0, on failure
 804  */
 805 #if defined(CONFIG_FIT)
 806 static int fit_check_kernel(const void *fit, int os_noffset, int verify)
 807 {
 808         fit_image_print(fit, os_noffset, "   ");
 809
 810         if (verify) {
 811                 puts("   Verifying Hash Integrity ... ");
 812                 if (!fit_image_check_hashes(fit, os_noffset)) {
 813                         puts("Bad Data Hash\n");
 814                         bootstage_error(BOOTSTAGE_ID_FIT_CHECK_HASH);
 815                         return 0;
 816                 }
 817                 puts("OK\n");
 818         }
 819         bootstage_mark(BOOTSTAGE_ID_FIT_CHECK_ARCH);
 820
 821         if (!fit_image_check_target_arch(fit, os_noffset)) {
 822                 puts("Unsupported Architecture\n");
 823                 bootstage_error(BOOTSTAGE_ID_FIT_CHECK_ARCH);
 824                 return 0;
 825         }
 826
 827         bootstage_mark(BOOTSTAGE_ID_FIT_CHECK_KERNEL);
 828         if (!fit_image_check_type(fit, os_noffset, IH_TYPE_KERNEL) &&
 829             !fit_image_check_type(fit, os_noffset, IH_TYPE_KERNEL_NOLOAD)) {
 830                 puts("Not a kernel image\n");
 831                 bootstage_error(BOOTSTAGE_ID_FIT_CHECK_KERNEL);
 832                 return 0;
 833         }
 834
 835         bootstage_mark(BOOTSTAGE_ID_FIT_CHECKED);
 836         return 1;
 837 }
 838 #endif /* CONFIG_FIT */
 839
 840 /**
 841  * boot_get_kernel - find kernel image
 842  * @os_data: pointer to a ulong variable, will hold os data start address
 843  * @os_len: pointer to a ulong variable, will hold os data length
 844  *
 845  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 846  * and locates kernel data.
 847  *
 848  * returns:
 849  *     pointer to image header if valid image was found, plus kernel start
 850  *     address and length, otherwise NULL
 851  */
 852 static void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 853                 char * const argv[], bootm_headers_t *images, ulong *os_data,
 854                 ulong *os_len)
 855 {
 856         image_header_t  *hdr;
 857         ulong           img_addr;
 858 #if defined(CONFIG_FIT)
 859         void            *fit_hdr;
 860         const char      *fit_uname_config = NULL;
 861         const char      *fit_uname_kernel = NULL;
 862         const void      *data;
 863         size_t          len;
 864         int             cfg_noffset;
 865         int             os_noffset;
 866 #endif
 867
 868         /* find out kernel image address */
 869         if (argc < 2) {
 870                 img_addr = load_addr;
 871                 debug("*  kernel: default image load address = 0x%08lx\n",
 872                                 load_addr);
 873 #if defined(CONFIG_FIT)
 874         } else if (fit_parse_conf(argv[1], load_addr, &img_addr,
 875                                                         &fit_uname_config)) {
 876                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
 877                                 fit_uname_config, img_addr);
 878         } else if (fit_parse_subimage(argv[1], load_addr, &img_addr,
 879                                                         &fit_uname_kernel)) {
 880                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
 881                                 fit_uname_kernel, img_addr);
 882 #endif
 883         } else {
 884                 img_addr = simple_strtoul(argv[1], NULL, 16);
 885                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 886         }
 887
 888         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 889
 890         /* copy from dataflash if needed */
 891         img_addr = genimg_get_image(img_addr);
 892
 893         /* check image type, for FIT images get FIT kernel node */
 894         *os_data = *os_len = 0;
 895         switch (genimg_get_format((void *)img_addr)) {
 896         case IMAGE_FORMAT_LEGACY:
 897                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 898                                 img_addr);
 899                 hdr = image_get_kernel(img_addr, images->verify);
 900                 if (!hdr)
 901                         return NULL;
 902                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 903
 904                 /* get os_data and os_len */
 905                 switch (image_get_type(hdr)) {
 906                 case IH_TYPE_KERNEL:
 907                 case IH_TYPE_KERNEL_NOLOAD:
 908                         *os_data = image_get_data(hdr);
 909                         *os_len = image_get_data_size(hdr);
 910                         break;
 911                 case IH_TYPE_MULTI:
 912                         image_multi_getimg(hdr, 0, os_data, os_len);
 913                         break;
 914                 case IH_TYPE_STANDALONE:
 915                         *os_data = image_get_data(hdr);
 916                         *os_len = image_get_data_size(hdr);
 917                         break;
 918                 default:
 919                         printf("Wrong Image Type for %s command\n",
 920                                 cmdtp->name);
 921                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 922                         return NULL;
 923                 }
 924
 925                 /*
 926                  * copy image header to allow for image overwrites during
 927                  * kernel decompression.
 928                  */
 929                 memmove(&images->legacy_hdr_os_copy, hdr,
 930                         sizeof(image_header_t));
 931
 932                 /* save pointer to image header */
 933                 images->legacy_hdr_os = hdr;
 934
 935                 images->legacy_hdr_valid = 1;
 936                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 937                 break;
 938 #if defined(CONFIG_FIT)
 939         case IMAGE_FORMAT_FIT:
 940                 fit_hdr = (void *)img_addr;
 941                 printf("## Booting kernel from FIT Image at %08lx ...\n",
 942                                 img_addr);
 943
 944                 if (!fit_check_format(fit_hdr)) {
 945                         puts("Bad FIT kernel image format!\n");
 946                         bootstage_error(BOOTSTAGE_ID_FIT_FORMAT);
 947                         return NULL;
 948                 }
 949                 bootstage_mark(BOOTSTAGE_ID_FIT_FORMAT);
 950
 951                 if (!fit_uname_kernel) {
 952                         /*
 953                          * no kernel image node unit name, try to get config
 954                          * node first. If config unit node name is NULL
 955                          * fit_conf_get_node() will try to find default config
 956                          * node
 957                          */
 958                         bootstage_mark(BOOTSTAGE_ID_FIT_NO_UNIT_NAME);
 959 #ifdef CONFIG_FIT_BEST_MATCH
 960                         if (fit_uname_config)
 961                                 cfg_noffset =
 962                                         fit_conf_get_node(fit_hdr,
 963                                                           fit_uname_config);
 964                         else
 965                                 cfg_noffset =
 966                                         fit_conf_find_compat(fit_hdr,
 967                                                              gd->fdt_blob);
 968 #else
 969                         cfg_noffset = fit_conf_get_node(fit_hdr,
 970                                                         fit_uname_config);
 971 #endif
 972                         if (cfg_noffset < 0) {
 973                                 bootstage_error(BOOTSTAGE_ID_FIT_NO_UNIT_NAME);
 974                                 return NULL;
 975                         }
 976                         /* save configuration uname provided in the first
 977                          * bootm argument
 978                          */
 979                         images->fit_uname_cfg = fdt_get_name(fit_hdr,
 980                                                                 cfg_noffset,
 981                                                                 NULL);
 982                         printf("   Using '%s' configuration\n",
 983                                 images->fit_uname_cfg);
 984                         bootstage_mark(BOOTSTAGE_ID_FIT_CONFIG);
 985
 986                         os_noffset = fit_conf_get_kernel_node(fit_hdr,
 987                                                                 cfg_noffset);
 988                         fit_uname_kernel = fit_get_name(fit_hdr, os_noffset,
 989                                                         NULL);
 990                 } else {
 991                         /* get kernel component image node offset */
 992                         bootstage_mark(BOOTSTAGE_ID_FIT_UNIT_NAME);
 993                         os_noffset = fit_image_get_node(fit_hdr,
 994                                                         fit_uname_kernel);
 995                 }
 996                 if (os_noffset < 0) {
 997                         bootstage_error(BOOTSTAGE_ID_FIT_CONFIG);
 998                         return NULL;
 999                 }
1000
1001                 printf("   Trying '%s' kernel subimage\n", fit_uname_kernel);
1002
1003                 bootstage_mark(BOOTSTAGE_ID_FIT_CHECK_SUBIMAGE);
1004                 if (!fit_check_kernel(fit_hdr, os_noffset, images->verify))
1005                         return NULL;
1006
1007                 /* get kernel image data address and length */
1008                 if (fit_image_get_data(fit_hdr, os_noffset, &data, &len)) {
1009                         puts("Could not find kernel subimage data!\n");
1010                         bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO_ERR);
1011                         return NULL;
1012                 }
1013                 bootstage_mark(BOOTSTAGE_ID_FIT_KERNEL_INFO);
1014
1015                 *os_len = len;
1016                 *os_data = (ulong)data;
1017                 images->fit_hdr_os = fit_hdr;
1018                 images->fit_uname_os = fit_uname_kernel;
1019                 images->fit_noffset_os = os_noffset;
1020                 break;
1021 #endif
1022         default:
1023                 printf("Wrong Image Format for %s command\n", cmdtp->name);
1024                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
1025                 return NULL;
1026         }
1027
1028         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
1029                         *os_data, *os_len, *os_len);
1030
1031         return (void *)img_addr;
1032 }
1033
1034 #ifdef CONFIG_SYS_LONGHELP
1035 static char bootm_help_text[] =
1036         "[addr [arg ...]]\n    - boot application image stored in memory\n"
1037         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
1038         "\t'arg' can be the address of an initrd image\n"
1039 #if defined(CONFIG_OF_LIBFDT)
1040         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1041         "\ta third argument is required which is the address of the\n"
1042         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1043         "\tuse a '-' for the second argument. If you do not pass a third\n"
1044         "\ta bd_info struct will be passed instead\n"
1045 #endif
1046 #if defined(CONFIG_FIT)
1047         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1048         "\tmust be extened to include component or configuration unit name:\n"
1049         "\taddr:<subimg_uname> - direct component image specification\n"
1050         "\taddr#<conf_uname>   - configuration specification\n"
1051         "\tUse iminfo command to get the list of existing component\n"
1052         "\timages and configurations.\n"
1053 #endif
1054         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1055         "must be\n"
1056         "issued in the order below (it's ok to not issue all sub-commands):\n"
1057         "\tstart [addr [arg ...]]\n"
1058         "\tloados  - load OS image\n"
1059 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
1060         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1061 #endif
1062 #if defined(CONFIG_OF_LIBFDT)
1063         "\tfdt     - relocate flat device tree\n"
1064 #endif
1065         "\tcmdline - OS specific command line processing/setup\n"
1066         "\tbdt     - OS specific bd_t processing\n"
1067         "\tprep    - OS specific prep before relocation or go\n"
1068         "\tgo      - start OS";
1069 #endif
1070
1071 U_BOOT_CMD(
1072         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1073         "boot application image from memory", bootm_help_text
1074 );
1075
1076 /*******************************************************************/
1077 /* bootd - boot default image */
1078 /*******************************************************************/
1079 #if defined(CONFIG_CMD_BOOTD)
1080 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1081 {
1082         int rcode = 0;
1083
1084         if (run_command(getenv("bootcmd"), flag) < 0)
1085                 rcode = 1;
1086         return rcode;
1087 }
1088
1089 U_BOOT_CMD(
1090         boot,   1,      1,      do_bootd,
1091         "boot default, i.e., run 'bootcmd'",
1092         ""
1093 );
1094
1095 /* keep old command name "bootd" for backward compatibility */
1096 U_BOOT_CMD(
1097         bootd, 1,       1,      do_bootd,
1098         "boot default, i.e., run 'bootcmd'",
1099         ""
1100 );
1101
1102 #endif
1103
1104
1105 /*******************************************************************/
1106 /* iminfo - print header info for a requested image */
1107 /*******************************************************************/
1108 #if defined(CONFIG_CMD_IMI)
1109 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1110 {
1111         int     arg;
1112         ulong   addr;
1113         int     rcode = 0;
1114
1115         if (argc < 2) {
1116                 return image_info(load_addr);
1117         }
1118
1119         for (arg = 1; arg < argc; ++arg) {
1120                 addr = simple_strtoul(argv[arg], NULL, 16);
1121                 if (image_info(addr) != 0)
1122                         rcode = 1;
1123         }
1124         return rcode;
1125 }
1126
1127 static int image_info(ulong addr)
1128 {
1129         void *hdr = (void *)addr;
1130
1131         printf("\n## Checking Image at %08lx ...\n", addr);
1132
1133         switch (genimg_get_format(hdr)) {
1134         case IMAGE_FORMAT_LEGACY:
1135                 puts("   Legacy image found\n");
1136                 if (!image_check_magic(hdr)) {
1137                         puts("   Bad Magic Number\n");
1138                         return 1;
1139                 }
1140
1141                 if (!image_check_hcrc(hdr)) {
1142                         puts("   Bad Header Checksum\n");
1143                         return 1;
1144                 }
1145
1146                 image_print_contents(hdr);
1147
1148                 puts("   Verifying Checksum ... ");
1149                 if (!image_check_dcrc(hdr)) {
1150                         puts("   Bad Data CRC\n");
1151                         return 1;
1152                 }
1153                 puts("OK\n");
1154                 return 0;
1155 #if defined(CONFIG_FIT)
1156         case IMAGE_FORMAT_FIT:
1157                 puts("   FIT image found\n");
1158
1159                 if (!fit_check_format(hdr)) {
1160                         puts("Bad FIT image format!\n");
1161                         return 1;
1162                 }
1163
1164                 fit_print_contents(hdr);
1165
1166                 if (!fit_all_image_check_hashes(hdr)) {
1167                         puts("Bad hash in FIT image!\n");
1168                         return 1;
1169                 }
1170
1171                 return 0;
1172 #endif
1173         default:
1174                 puts("Unknown image format!\n");
1175                 break;
1176         }
1177
1178         return 1;
1179 }
1180
1181 U_BOOT_CMD(
1182         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1183         "print header information for application image",
1184         "addr [addr ...]\n"
1185         "    - print header information for application image starting at\n"
1186         "      address 'addr' in memory; this includes verification of the\n"
1187         "      image contents (magic number, header and payload checksums)"
1188 );
1189 #endif
1190
1191
1192 /*******************************************************************/
1193 /* imls - list all images found in flash */
1194 /*******************************************************************/
1195 #if defined(CONFIG_CMD_IMLS)
1196 static int do_imls_nor(void)
1197 {
1198         flash_info_t *info;
1199         int i, j;
1200         void *hdr;
1201
1202         for (i = 0, info = &flash_info[0];
1203                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1204
1205                 if (info->flash_id == FLASH_UNKNOWN)
1206                         goto next_bank;
1207                 for (j = 0; j < info->sector_count; ++j) {
1208
1209                         hdr = (void *)info->start[j];
1210                         if (!hdr)
1211                                 goto next_sector;
1212
1213                         switch (genimg_get_format(hdr)) {
1214                         case IMAGE_FORMAT_LEGACY:
1215                                 if (!image_check_hcrc(hdr))
1216                                         goto next_sector;
1217
1218                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1219                                 image_print_contents(hdr);
1220
1221                                 puts("   Verifying Checksum ... ");
1222                                 if (!image_check_dcrc(hdr)) {
1223                                         puts("Bad Data CRC\n");
1224                                 } else {
1225                                         puts("OK\n");
1226                                 }
1227                                 break;
1228 #if defined(CONFIG_FIT)
1229                         case IMAGE_FORMAT_FIT:
1230                                 if (!fit_check_format(hdr))
1231                                         goto next_sector;
1232
1233                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1234                                 fit_print_contents(hdr);
1235                                 break;
1236 #endif
1237                         default:
1238                                 goto next_sector;
1239                         }
1240
1241 next_sector:            ;
1242                 }
1243 next_bank:      ;
1244         }
1245         return 0;
1246 }
1247 #endif
1248
1249 #if defined(CONFIG_CMD_IMLS_NAND)
1250 static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
1251                 size_t len)
1252 {
1253         void *imgdata;
1254         int ret;
1255
1256         imgdata = malloc(len);
1257         if (!imgdata) {
1258                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
1259                                 nand_dev, off);
1260                 printf("   Low memory(cannot allocate memory for image)\n");
1261                 return -ENOMEM;
1262         }
1263
1264         ret = nand_read_skip_bad(nand, off, &len,
1265                         imgdata);
1266         if (ret < 0 && ret != -EUCLEAN) {
1267                 free(imgdata);
1268                 return ret;
1269         }
1270
1271         if (!image_check_hcrc(imgdata)) {
1272                 free(imgdata);
1273                 return 0;
1274         }
1275
1276         printf("Legacy Image at NAND device %d offset %08llX:\n",
1277                         nand_dev, off);
1278         image_print_contents(imgdata);
1279
1280         puts("   Verifying Checksum ... ");
1281         if (!image_check_dcrc(imgdata))
1282                 puts("Bad Data CRC\n");
1283         else
1284                 puts("OK\n");
1285
1286         free(imgdata);
1287
1288         return 0;
1289 }
1290
1291 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
1292                 size_t len)
1293 {
1294         void *imgdata;
1295         int ret;
1296
1297         imgdata = malloc(len);
1298         if (!imgdata) {
1299                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
1300                                 nand_dev, off);
1301                 printf("   Low memory(cannot allocate memory for image)\n");
1302                 return -ENOMEM;
1303         }
1304
1305         ret = nand_read_skip_bad(nand, off, &len,
1306                         imgdata);
1307         if (ret < 0 && ret != -EUCLEAN) {
1308                 free(imgdata);
1309                 return ret;
1310         }
1311
1312         if (!fit_check_format(imgdata)) {
1313                 free(imgdata);
1314                 return 0;
1315         }
1316
1317         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
1318
1319         fit_print_contents(imgdata);
1320         free(imgdata);
1321
1322         return 0;
1323 }
1324
1325 static int do_imls_nand(void)
1326 {
1327         nand_info_t *nand;
1328         int nand_dev = nand_curr_device;
1329         size_t len;
1330         loff_t off;
1331         u32 buffer[16];
1332
1333         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
1334                 puts("\nNo NAND devices available\n");
1335                 return -ENODEV;
1336         }
1337
1338         printf("\n");
1339
1340         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
1341                 nand = &nand_info[nand_dev];
1342                 if (!nand->name || !nand->size)
1343                         continue;
1344
1345                 for (off = 0; off < nand->size; off += nand->erasesize) {
1346                         const image_header_t *header;
1347                         int ret;
1348
1349                         if (nand_block_isbad(nand, off))
1350                                 continue;
1351
1352                         len = sizeof(buffer);
1353
1354                         ret = nand_read(nand, off, &len, (u8 *)buffer);
1355                         if (ret < 0 && ret != -EUCLEAN) {
1356                                 printf("NAND read error %d at offset %08llX\n",
1357                                                 ret, off);
1358                                 continue;
1359                         }
1360
1361                         switch (genimg_get_format(buffer)) {
1362                         case IMAGE_FORMAT_LEGACY:
1363                                 header = (const image_header_t *)buffer;
1364
1365                                 len = image_get_image_size(header);
1366                                 nand_imls_legacyimage(nand, nand_dev, off, len);
1367                                 break;
1368 #if defined(CONFIG_FIT)
1369                         case IMAGE_FORMAT_FIT:
1370                                 len = fit_get_size(buffer);
1371                                 nand_imls_fitimage(nand, nand_dev, off, len);
1372                                 break;
1373 #endif
1374                         }
1375                 }
1376         }
1377
1378         return 0;
1379 }
1380 #endif
1381
1382 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
1383 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1384 {
1385         int ret_nor = 0, ret_nand = 0;
1386
1387 #if defined(CONFIG_CMD_IMLS)
1388         ret_nor = do_imls_nor();
1389 #endif
1390
1391 #if defined(CONFIG_CMD_IMLS_NAND)
1392         ret_nand = do_imls_nand();
1393 #endif
1394
1395         if (ret_nor)
1396                 return ret_nor;
1397
1398         if (ret_nand)
1399                 return ret_nand;
1400
1401         return (0);
1402 }
1403
1404 U_BOOT_CMD(
1405         imls,   1,              1,      do_imls,
1406         "list all images found in flash",
1407         "\n"
1408         "    - Prints information about all images found at sector/block\n"
1409         "      boundaries in nor/nand flash."
1410 );
1411 #endif
1412
1413 /*******************************************************************/
1414 /* helper routines */
1415 /*******************************************************************/
1416 #ifdef CONFIG_SILENT_CONSOLE
1417 static void fixup_silent_linux(void)
1418 {
1419         char buf[256], *start, *end;
1420         char *cmdline = getenv("bootargs");
1421
1422         /* Only fix cmdline when requested */
1423         if (!(gd->flags & GD_FLG_SILENT))
1424                 return;
1425
1426         debug("before silent fix-up: %s\n", cmdline);
1427         if (cmdline) {
1428                 start = strstr(cmdline, "console=");
1429                 if (start) {
1430                         end = strchr(start, ' ');
1431                         strncpy(buf, cmdline, (start - cmdline + 8));
1432                         if (end)
1433                                 strcpy(buf + (start - cmdline + 8), end);
1434                         else
1435                                 buf[start - cmdline + 8] = '\0';
1436                 } else {
1437                         strcpy(buf, cmdline);
1438                         strcat(buf, " console=");
1439                 }
1440         } else {
1441                 strcpy(buf, "console=");
1442         }
1443
1444         setenv("bootargs", buf);
1445         debug("after silent fix-up: %s\n", buf);
1446 }
1447 #endif /* CONFIG_SILENT_CONSOLE */
1448
1449
1450 /*******************************************************************/
1451 /* OS booting routines */
1452 /*******************************************************************/
1453
1454 #ifdef CONFIG_BOOTM_NETBSD
1455 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1456                             bootm_headers_t *images)
1457 {
1458         void (*loader)(bd_t *, image_header_t *, char *, char *);
1459         image_header_t *os_hdr, *hdr;
1460         ulong kernel_data, kernel_len;
1461         char *consdev;
1462         char *cmdline;
1463
1464         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1465                 return 1;
1466
1467 #if defined(CONFIG_FIT)
1468         if (!images->legacy_hdr_valid) {
1469                 fit_unsupported_reset("NetBSD");
1470                 return 1;
1471         }
1472 #endif
1473         hdr = images->legacy_hdr_os;
1474
1475         /*
1476          * Booting a (NetBSD) kernel image
1477          *
1478          * This process is pretty similar to a standalone application:
1479          * The (first part of an multi-) image must be a stage-2 loader,
1480          * which in turn is responsible for loading & invoking the actual
1481          * kernel.  The only differences are the parameters being passed:
1482          * besides the board info strucure, the loader expects a command
1483          * line, the name of the console device, and (optionally) the
1484          * address of the original image header.
1485          */
1486         os_hdr = NULL;
1487         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1488                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1489                 if (kernel_len)
1490                         os_hdr = hdr;
1491         }
1492
1493         consdev = "";
1494 #if   defined(CONFIG_8xx_CONS_SMC1)
1495         consdev = "smc1";
1496 #elif defined(CONFIG_8xx_CONS_SMC2)
1497         consdev = "smc2";
1498 #elif defined(CONFIG_8xx_CONS_SCC2)
1499         consdev = "scc2";
1500 #elif defined(CONFIG_8xx_CONS_SCC3)
1501         consdev = "scc3";
1502 #endif
1503
1504         if (argc > 2) {
1505                 ulong len;
1506                 int   i;
1507
1508                 for (i = 2, len = 0; i < argc; i += 1)
1509                         len += strlen(argv[i]) + 1;
1510                 cmdline = malloc(len);
1511
1512                 for (i = 2, len = 0; i < argc; i += 1) {
1513                         if (i > 2)
1514                                 cmdline[len++] = ' ';
1515                         strcpy(&cmdline[len], argv[i]);
1516                         len += strlen(argv[i]);
1517                 }
1518         } else if ((cmdline = getenv("bootargs")) == NULL) {
1519                 cmdline = "";
1520         }
1521
1522         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1523
1524         printf("## Transferring control to NetBSD stage-2 loader "
1525                 "(at address %08lx) ...\n",
1526                 (ulong)loader);
1527
1528         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1529
1530         /*
1531          * NetBSD Stage-2 Loader Parameters:
1532          *   r3: ptr to board info data
1533          *   r4: image address
1534          *   r5: console device
1535          *   r6: boot args string
1536          */
1537         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1538
1539         return 1;
1540 }
1541 #endif /* CONFIG_BOOTM_NETBSD*/
1542
1543 #ifdef CONFIG_LYNXKDI
1544 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1545                              bootm_headers_t *images)
1546 {
1547         image_header_t *hdr = &images->legacy_hdr_os_copy;
1548
1549         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1550                 return 1;
1551
1552 #if defined(CONFIG_FIT)
1553         if (!images->legacy_hdr_valid) {
1554                 fit_unsupported_reset("Lynx");
1555                 return 1;
1556         }
1557 #endif
1558
1559         lynxkdi_boot((image_header_t *)hdr);
1560
1561         return 1;
1562 }
1563 #endif /* CONFIG_LYNXKDI */
1564
1565 #ifdef CONFIG_BOOTM_RTEMS
1566 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1567                            bootm_headers_t *images)
1568 {
1569         void (*entry_point)(bd_t *);
1570
1571         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1572                 return 1;
1573
1574 #if defined(CONFIG_FIT)
1575         if (!images->legacy_hdr_valid) {
1576                 fit_unsupported_reset("RTEMS");
1577                 return 1;
1578         }
1579 #endif
1580
1581         entry_point = (void (*)(bd_t *))images->ep;
1582
1583         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1584                 (ulong)entry_point);
1585
1586         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1587
1588         /*
1589          * RTEMS Parameters:
1590          *   r3: ptr to board info data
1591          */
1592         (*entry_point)(gd->bd);
1593
1594         return 1;
1595 }
1596 #endif /* CONFIG_BOOTM_RTEMS */
1597
1598 #if defined(CONFIG_BOOTM_OSE)
1599 static int do_bootm_ose(int flag, int argc, char * const argv[],
1600                            bootm_headers_t *images)
1601 {
1602         void (*entry_point)(void);
1603
1604         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1605                 return 1;
1606
1607 #if defined(CONFIG_FIT)
1608         if (!images->legacy_hdr_valid) {
1609                 fit_unsupported_reset("OSE");
1610                 return 1;
1611         }
1612 #endif
1613
1614         entry_point = (void (*)(void))images->ep;
1615
1616         printf("## Transferring control to OSE (at address %08lx) ...\n",
1617                 (ulong)entry_point);
1618
1619         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1620
1621         /*
1622          * OSE Parameters:
1623          *   None
1624          */
1625         (*entry_point)();
1626
1627         return 1;
1628 }
1629 #endif /* CONFIG_BOOTM_OSE */
1630
1631 #if defined(CONFIG_CMD_ELF)
1632 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1633                              bootm_headers_t *images)
1634 {
1635         char str[80];
1636
1637         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1638                 return 1;
1639
1640 #if defined(CONFIG_FIT)
1641         if (!images->legacy_hdr_valid) {
1642                 fit_unsupported_reset("VxWorks");
1643                 return 1;
1644         }
1645 #endif
1646
1647         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1648         setenv("loadaddr", str);
1649         do_bootvx(NULL, 0, 0, NULL);
1650
1651         return 1;
1652 }
1653
1654 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1655                             bootm_headers_t *images)
1656 {
1657         char *local_args[2];
1658         char str[16];
1659
1660         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1661                 return 1;
1662
1663 #if defined(CONFIG_FIT)
1664         if (!images->legacy_hdr_valid) {
1665                 fit_unsupported_reset("QNX");
1666                 return 1;
1667         }
1668 #endif
1669
1670         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1671         local_args[0] = argv[0];
1672         local_args[1] = str;    /* and provide it via the arguments */
1673         do_bootelf(NULL, 0, 2, local_args);
1674
1675         return 1;
1676 }
1677 #endif
1678
1679 #ifdef CONFIG_INTEGRITY
1680 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1681                            bootm_headers_t *images)
1682 {
1683         void (*entry_point)(void);
1684
1685         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1686                 return 1;
1687
1688 #if defined(CONFIG_FIT)
1689         if (!images->legacy_hdr_valid) {
1690                 fit_unsupported_reset("INTEGRITY");
1691                 return 1;
1692         }
1693 #endif
1694
1695         entry_point = (void (*)(void))images->ep;
1696
1697         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1698                 (ulong)entry_point);
1699
1700         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1701
1702         /*
1703          * INTEGRITY Parameters:
1704          *   None
1705          */
1706         (*entry_point)();
1707
1708         return 1;
1709 }
1710 #endif
1711
1712 #ifdef CONFIG_CMD_BOOTZ
1713
1714 static int __bootz_setup(void *image, void **start, void **end)
1715 {
1716         /* Please define bootz_setup() for your platform */
1717
1718         puts("Your platform's zImage format isn't supported yet!\n");
1719         return -1;
1720 }
1721 int bootz_setup(void *image, void **start, void **end)
1722         __attribute__((weak, alias("__bootz_setup")));
1723
1724 /*
1725  * zImage booting support
1726  */
1727 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1728                         char * const argv[], bootm_headers_t *images)
1729 {
1730         int ret;
1731         void *zi_start, *zi_end;
1732
1733         memset(images, 0, sizeof(bootm_headers_t));
1734
1735         boot_start_lmb(images);
1736
1737         /* Setup Linux kernel zImage entry point */
1738         if (argc < 2) {
1739                 images->ep = load_addr;
1740                 debug("*  kernel: default image load address = 0x%08lx\n",
1741                                 load_addr);
1742         } else {
1743                 images->ep = simple_strtoul(argv[1], NULL, 16);
1744                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1745                         images->ep);
1746         }
1747
1748         ret = bootz_setup((void *)images->ep, &zi_start, &zi_end);
1749         if (ret != 0)
1750                 return 1;
1751
1752         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1753
1754         /* Find ramdisk */
1755         ret = boot_get_ramdisk(argc, argv, images, IH_INITRD_ARCH,
1756                         &images->rd_start, &images->rd_end);
1757         if (ret) {
1758                 puts("Ramdisk image is corrupt or invalid\n");
1759                 return 1;
1760         }
1761
1762 #if defined(CONFIG_OF_LIBFDT)
1763         /* find flattened device tree */
1764         ret = boot_get_fdt(flag, argc, argv, images,
1765                            &images->ft_addr, &images->ft_len);
1766         if (ret) {
1767                 puts("Could not find a valid device tree\n");
1768                 return 1;
1769         }
1770
1771         set_working_fdt_addr(images->ft_addr);
1772 #endif
1773
1774         return 0;
1775 }
1776
1777 static int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1778 {
1779         bootm_headers_t images;
1780
1781         if (bootz_start(cmdtp, flag, argc, argv, &images))
1782                 return 1;
1783
1784         /*
1785          * We have reached the point of no return: we are going to
1786          * overwrite all exception vector code, so we cannot easily
1787          * recover from any failures any more...
1788          */
1789         disable_interrupts();
1790
1791 #ifdef CONFIG_NETCONSOLE
1792         /* Stop the ethernet stack if NetConsole could have left it up */
1793         eth_halt();
1794 #endif
1795
1796 #if defined(CONFIG_CMD_USB)
1797         /*
1798          * turn off USB to prevent the host controller from writing to the
1799          * SDRAM while Linux is booting. This could happen (at least for OHCI
1800          * controller), because the HCCA (Host Controller Communication Area)
1801          * lies within the SDRAM and the host controller writes continously to
1802          * this area (as busmaster!). The HccaFrameNumber is for example
1803          * updated every 1 ms within the HCCA structure in SDRAM! For more
1804          * details see the OpenHCI specification.
1805          */
1806         usb_stop();
1807 #endif
1808
1809 #ifdef CONFIG_SILENT_CONSOLE
1810         fixup_silent_linux();
1811 #endif
1812         arch_preboot_os();
1813
1814         do_bootm_linux(0, argc, argv, &images);
1815 #ifdef DEBUG
1816         puts("\n## Control returned to monitor - resetting...\n");
1817 #endif
1818         do_reset(cmdtp, flag, argc, argv);
1819
1820         return 1;
1821 }
1822
1823 #ifdef CONFIG_SYS_LONGHELP
1824 static char bootz_help_text[] =
1825         "[addr [initrd[:size]] [fdt]]\n"
1826         "    - boot Linux zImage stored in memory\n"
1827         "\tThe argument 'initrd' is optional and specifies the address\n"
1828         "\tof the initrd in memory. The optional argument ':size' allows\n"
1829         "\tspecifying the size of RAW initrd.\n"
1830 #if defined(CONFIG_OF_LIBFDT)
1831         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1832         "\ta third argument is required which is the address of the\n"
1833         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1834         "\tuse a '-' for the second argument. If you do not pass a third\n"
1835         "\ta bd_info struct will be passed instead\n"
1836 #endif
1837         "";
1838 #endif
1839
1840 U_BOOT_CMD(
1841         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1842         "boot Linux zImage image from memory", bootz_help_text
1843 );
1844 #endif  /* CONFIG_CMD_BOOTZ */