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 <asm/io.h>
  40 #include <linux/compiler.h>
  41
  42 #if defined(CONFIG_CMD_USB)
  43 #include <usb.h>
  44 #endif
  45
  46 #ifdef CONFIG_SYS_HUSH_PARSER
  47 #include <hush.h>
  48 #endif
  49
  50 #if defined(CONFIG_OF_LIBFDT)
  51 #include <libfdt.h>
  52 #include <fdt_support.h>
  53 #endif
  54
  55 #ifdef CONFIG_LZMA
  56 #include <lzma/LzmaTypes.h>
  57 #include <lzma/LzmaDec.h>
  58 #include <lzma/LzmaTools.h>
  59 #endif /* CONFIG_LZMA */
  60
  61 #ifdef CONFIG_LZO
  62 #include <linux/lzo.h>
  63 #endif /* CONFIG_LZO */
  64
  65 DECLARE_GLOBAL_DATA_PTR;
  66
  67 #ifndef CONFIG_SYS_BOOTM_LEN
  68 #define CONFIG_SYS_BOOTM_LEN    0x800000        /* use 8MByte as default max gunzip size */
  69 #endif
  70
  71 #ifdef CONFIG_BZIP2
  72 extern void bz_internal_error(int);
  73 #endif
  74
  75 #if defined(CONFIG_CMD_IMI)
  76 static int image_info(unsigned long addr);
  77 #endif
  78
  79 #if defined(CONFIG_CMD_IMLS)
  80 #include <flash.h>
  81 #include <mtd/cfi_flash.h>
  82 extern flash_info_t flash_info[]; /* info for FLASH chips */
  83 #endif
  84
  85 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
  86 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  87 #endif
  88
  89 #include <linux/err.h>
  90 #include <nand.h>
  91
  92 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
  93 static void fixup_silent_linux(void);
  94 #endif
  95
  96 static image_header_t *image_get_kernel(ulong img_addr, int verify);
  97 #if defined(CONFIG_FIT)
  98 static int fit_check_kernel(const void *fit, int os_noffset, int verify);
  99 #endif
 100
 101 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 102                                 char * const argv[], bootm_headers_t *images,
 103                                 ulong *os_data, ulong *os_len);
 104
 105 /*
 106  *  Continue booting an OS image; caller already has:
 107  *  - copied image header to global variable `header'
 108  *  - checked header magic number, checksums (both header & image),
 109  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
 110  *  - loaded (first part of) image to header load address,
 111  *  - disabled interrupts.
 112  */
 113 typedef int boot_os_fn(int flag, int argc, char * const argv[],
 114                         bootm_headers_t *images); /* pointers to os/initrd/fdt */
 115
 116 #ifdef CONFIG_BOOTM_LINUX
 117 extern boot_os_fn do_bootm_linux;
 118 #endif
 119 #ifdef CONFIG_BOOTM_NETBSD
 120 static boot_os_fn do_bootm_netbsd;
 121 #endif
 122 #if defined(CONFIG_LYNXKDI)
 123 static boot_os_fn do_bootm_lynxkdi;
 124 extern void lynxkdi_boot(image_header_t *);
 125 #endif
 126 #ifdef CONFIG_BOOTM_RTEMS
 127 static boot_os_fn do_bootm_rtems;
 128 #endif
 129 #if defined(CONFIG_BOOTM_OSE)
 130 static boot_os_fn do_bootm_ose;
 131 #endif
 132 #if defined(CONFIG_BOOTM_PLAN9)
 133 static boot_os_fn do_bootm_plan9;
 134 #endif
 135 #if defined(CONFIG_CMD_ELF)
 136 static boot_os_fn do_bootm_vxworks;
 137 static boot_os_fn do_bootm_qnxelf;
 138 int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 139 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 140 #endif
 141 #if defined(CONFIG_INTEGRITY)
 142 static boot_os_fn do_bootm_integrity;
 143 #endif
 144
 145 static boot_os_fn *boot_os[] = {
 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_CMD_ELF)
 165         [IH_OS_VXWORKS] = do_bootm_vxworks,
 166         [IH_OS_QNX] = do_bootm_qnxelf,
 167 #endif
 168 #ifdef CONFIG_INTEGRITY
 169         [IH_OS_INTEGRITY] = do_bootm_integrity,
 170 #endif
 171 };
 172
 173 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
 174
 175 /* Allow for arch specific config before we boot */
 176 static void __arch_preboot_os(void)
 177 {
 178         /* please define platform specific arch_preboot_os() */
 179 }
 180 void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
 181
 182 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
 183
 184 #ifdef CONFIG_LMB
 185 static void boot_start_lmb(bootm_headers_t *images)
 186 {
 187         ulong           mem_start;
 188         phys_size_t     mem_size;
 189
 190         lmb_init(&images->lmb);
 191
 192         mem_start = getenv_bootm_low();
 193         mem_size = getenv_bootm_size();
 194
 195         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
 196
 197         arch_lmb_reserve(&images->lmb);
 198         board_lmb_reserve(&images->lmb);
 199 }
 200 #else
 201 #define lmb_reserve(lmb, base, size)
 202 static inline void boot_start_lmb(bootm_headers_t *images) { }
 203 #endif
 204
 205 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 206 {
 207         const void *os_hdr;
 208         int ret;
 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
 217         /* get kernel image header, start address and length */
 218         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
 219                         &images, &images.os.image_start, &images.os.image_len);
 220         if (images.os.image_len == 0) {
 221                 puts("ERROR: can't get kernel image!\n");
 222                 return 1;
 223         }
 224
 225         /* get image parameters */
 226         switch (genimg_get_format(os_hdr)) {
 227         case IMAGE_FORMAT_LEGACY:
 228                 images.os.type = image_get_type(os_hdr);
 229                 images.os.comp = image_get_comp(os_hdr);
 230                 images.os.os = image_get_os(os_hdr);
 231
 232                 images.os.end = image_get_image_end(os_hdr);
 233                 images.os.load = image_get_load(os_hdr);
 234                 break;
 235 #if defined(CONFIG_FIT)
 236         case IMAGE_FORMAT_FIT:
 237                 if (fit_image_get_type(images.fit_hdr_os,
 238                                         images.fit_noffset_os, &images.os.type)) {
 239                         puts("Can't get image type!\n");
 240                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 241                         return 1;
 242                 }
 243
 244                 if (fit_image_get_comp(images.fit_hdr_os,
 245                                         images.fit_noffset_os, &images.os.comp)) {
 246                         puts("Can't get image compression!\n");
 247                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 248                         return 1;
 249                 }
 250
 251                 if (fit_image_get_os(images.fit_hdr_os,
 252                                         images.fit_noffset_os, &images.os.os)) {
 253                         puts("Can't get image OS!\n");
 254                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 255                         return 1;
 256                 }
 257
 258                 images.os.end = fit_get_end(images.fit_hdr_os);
 259
 260                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 261                                         &images.os.load)) {
 262                         puts("Can't get image load address!\n");
 263                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 264                         return 1;
 265                 }
 266                 break;
 267 #endif
 268         default:
 269                 puts("ERROR: unknown image format type!\n");
 270                 return 1;
 271         }
 272
 273         /* find kernel entry point */
 274         if (images.legacy_hdr_valid) {
 275                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 276 #if defined(CONFIG_FIT)
 277         } else if (images.fit_uname_os) {
 278                 ret = fit_image_get_entry(images.fit_hdr_os,
 279                                           images.fit_noffset_os, &images.ep);
 280                 if (ret) {
 281                         puts("Can't get entry point property!\n");
 282                         return 1;
 283                 }
 284 #endif
 285         } else {
 286                 puts("Could not find kernel entry point!\n");
 287                 return 1;
 288         }
 289
 290         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 291                 images.os.load = images.os.image_start;
 292                 images.ep += images.os.load;
 293         }
 294
 295         if (((images.os.type == IH_TYPE_KERNEL) ||
 296              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 297              (images.os.type == IH_TYPE_MULTI)) &&
 298             (images.os.os == IH_OS_LINUX)) {
 299                 /* find ramdisk */
 300                 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 301                                 &images.rd_start, &images.rd_end);
 302                 if (ret) {
 303                         puts("Ramdisk image is corrupt or invalid\n");
 304                         return 1;
 305                 }
 306
 307 #if defined(CONFIG_OF_LIBFDT)
 308                 /* find flattened device tree */
 309                 ret = boot_get_fdt(flag, argc, argv, &images,
 310                                    &images.ft_addr, &images.ft_len);
 311                 if (ret) {
 312                         puts("Could not find a valid device tree\n");
 313                         return 1;
 314                 }
 315
 316                 set_working_fdt_addr(images.ft_addr);
 317 #endif
 318         }
 319
 320         images.os.start = (ulong)os_hdr;
 321         images.state = BOOTM_STATE_START;
 322
 323         return 0;
 324 }
 325
 326 #define BOOTM_ERR_RESET         -1
 327 #define BOOTM_ERR_OVERLAP       -2
 328 #define BOOTM_ERR_UNIMPLEMENTED -3
 329 static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
 330 {
 331         uint8_t comp = os.comp;
 332         ulong load = os.load;
 333         ulong blob_start = os.start;
 334         ulong blob_end = os.end;
 335         ulong image_start = os.image_start;
 336         ulong image_len = os.image_len;
 337         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 338         int no_overlap = 0;
 339 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 340         int ret;
 341 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 342
 343         const char *type_name = genimg_get_type_name(os.type);
 344
 345         switch (comp) {
 346         case IH_COMP_NONE:
 347                 if (load == blob_start || load == image_start) {
 348                         printf("   XIP %s ... ", type_name);
 349                         no_overlap = 1;
 350                 } else {
 351                         printf("   Loading %s ... ", type_name);
 352                         memmove_wd((void *)load, (void *)image_start,
 353                                         image_len, CHUNKSZ);
 354                 }
 355                 *load_end = load + image_len;
 356                 puts("OK\n");
 357                 break;
 358 #ifdef CONFIG_GZIP
 359         case IH_COMP_GZIP:
 360                 printf("   Uncompressing %s ... ", type_name);
 361                 if (gunzip((void *)load, unc_len,
 362                                 (uchar *)image_start, &image_len) != 0) {
 363                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 364                                 "error - must RESET board to recover\n");
 365                         if (boot_progress)
 366                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 367                         return BOOTM_ERR_RESET;
 368                 }
 369
 370                 *load_end = load + image_len;
 371                 break;
 372 #endif /* CONFIG_GZIP */
 373 #ifdef CONFIG_BZIP2
 374         case IH_COMP_BZIP2:
 375                 printf("   Uncompressing %s ... ", type_name);
 376                 /*
 377                  * If we've got less than 4 MB of malloc() space,
 378                  * use slower decompression algorithm which requires
 379                  * at most 2300 KB of memory.
 380                  */
 381                 int i = BZ2_bzBuffToBuffDecompress((char *)load,
 382                                         &unc_len, (char *)image_start, image_len,
 383                                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 384                 if (i != BZ_OK) {
 385                         printf("BUNZIP2: uncompress or overwrite error %d "
 386                                 "- must RESET board to recover\n", i);
 387                         if (boot_progress)
 388                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 389                         return BOOTM_ERR_RESET;
 390                 }
 391
 392                 *load_end = load + unc_len;
 393                 break;
 394 #endif /* CONFIG_BZIP2 */
 395 #ifdef CONFIG_LZMA
 396         case IH_COMP_LZMA: {
 397                 SizeT lzma_len = unc_len;
 398                 printf("   Uncompressing %s ... ", type_name);
 399
 400                 ret = lzmaBuffToBuffDecompress(
 401                         (unsigned char *)load, &lzma_len,
 402                         (unsigned char *)image_start, image_len);
 403                 unc_len = lzma_len;
 404                 if (ret != SZ_OK) {
 405                         printf("LZMA: uncompress or overwrite error %d "
 406                                 "- must RESET board to recover\n", ret);
 407                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 408                         return BOOTM_ERR_RESET;
 409                 }
 410                 *load_end = load + unc_len;
 411                 break;
 412         }
 413 #endif /* CONFIG_LZMA */
 414 #ifdef CONFIG_LZO
 415         case IH_COMP_LZO:
 416                 printf("   Uncompressing %s ... ", type_name);
 417
 418                 ret = lzop_decompress((const unsigned char *)image_start,
 419                                           image_len, (unsigned char *)load,
 420                                           &unc_len);
 421                 if (ret != LZO_E_OK) {
 422                         printf("LZO: uncompress or overwrite error %d "
 423                               "- must RESET board to recover\n", ret);
 424                         if (boot_progress)
 425                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 426                         return BOOTM_ERR_RESET;
 427                 }
 428
 429                 *load_end = load + unc_len;
 430                 break;
 431 #endif /* CONFIG_LZO */
 432         default:
 433                 printf("Unimplemented compression type %d\n", comp);
 434                 return BOOTM_ERR_UNIMPLEMENTED;
 435         }
 436
 437         flush_cache(load, (*load_end - load) * sizeof(ulong));
 438
 439         puts("OK\n");
 440         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 441         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 442
 443         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 444                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 445                         blob_start, blob_end);
 446                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 447                         *load_end);
 448
 449                 return BOOTM_ERR_OVERLAP;
 450         }
 451
 452         return 0;
 453 }
 454
 455 static int bootm_start_standalone(ulong iflag, int argc, char * const argv[])
 456 {
 457         char  *s;
 458         int   (*appl)(int, char * const []);
 459
 460         /* Don't start if "autostart" is set to "no" */
 461         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 462                 setenv_hex("filesize", images.os.image_len);
 463                 return 0;
 464         }
 465         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
 466         (*appl)(argc-1, &argv[1]);
 467         return 0;
 468 }
 469
 470 /* we overload the cmd field with our state machine info instead of a
 471  * function pointer */
 472 static cmd_tbl_t cmd_bootm_sub[] = {
 473         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 474         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 475 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 476         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 477 #endif
 478 #ifdef CONFIG_OF_LIBFDT
 479         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 480 #endif
 481         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 482         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 483         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 484         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 485 };
 486
 487 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 488                         char * const argv[])
 489 {
 490         int ret = 0;
 491         long state;
 492         cmd_tbl_t *c;
 493         boot_os_fn *boot_fn;
 494
 495         c = find_cmd_tbl(argv[1], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 496
 497         if (c) {
 498                 state = (long)c->cmd;
 499
 500                 /* treat start special since it resets the state machine */
 501                 if (state == BOOTM_STATE_START) {
 502                         argc--;
 503                         argv++;
 504                         return bootm_start(cmdtp, flag, argc, argv);
 505                 }
 506         } else {
 507                 /* Unrecognized command */
 508                 return CMD_RET_USAGE;
 509         }
 510
 511         if (images.state < BOOTM_STATE_START ||
 512             images.state >= state) {
 513                 printf("Trying to execute a command out of order\n");
 514                 return CMD_RET_USAGE;
 515         }
 516
 517         images.state |= state;
 518         boot_fn = boot_os[images.os.os];
 519
 520         switch (state) {
 521                 ulong load_end;
 522                 case BOOTM_STATE_START:
 523                         /* should never occur */
 524                         break;
 525                 case BOOTM_STATE_LOADOS:
 526                         ret = bootm_load_os(images.os, &load_end, 0);
 527                         if (ret)
 528                                 return ret;
 529
 530                         lmb_reserve(&images.lmb, images.os.load,
 531                                         (load_end - images.os.load));
 532                         break;
 533 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 534                 case BOOTM_STATE_RAMDISK:
 535                 {
 536                         ulong rd_len = images.rd_end - images.rd_start;
 537
 538                         ret = boot_ramdisk_high(&images.lmb, images.rd_start,
 539                                 rd_len, &images.initrd_start, &images.initrd_end);
 540                         if (ret)
 541                                 return ret;
 542
 543                         setenv_hex("initrd_start", images.initrd_start);
 544                         setenv_hex("initrd_end", images.initrd_end);
 545                 }
 546                         break;
 547 #endif
 548 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
 549                 case BOOTM_STATE_FDT:
 550                 {
 551                         boot_fdt_add_mem_rsv_regions(&images.lmb,
 552                                                      images.ft_addr);
 553                         ret = boot_relocate_fdt(&images.lmb,
 554                                 &images.ft_addr, &images.ft_len);
 555                         break;
 556                 }
 557 #endif
 558                 case BOOTM_STATE_OS_CMDLINE:
 559                         ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, &images);
 560                         if (ret)
 561                                 printf("cmdline subcommand not supported\n");
 562                         break;
 563                 case BOOTM_STATE_OS_BD_T:
 564                         ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, &images);
 565                         if (ret)
 566                                 printf("bdt subcommand not supported\n");
 567                         break;
 568                 case BOOTM_STATE_OS_PREP:
 569                         ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, &images);
 570                         if (ret)
 571                                 printf("prep subcommand not supported\n");
 572                         break;
 573                 case BOOTM_STATE_OS_GO:
 574                         disable_interrupts();
 575 #ifdef CONFIG_NETCONSOLE
 576                         /*
 577                          * Stop the ethernet stack if NetConsole could have
 578                          * left it up
 579                          */
 580                         eth_halt();
 581 #endif
 582                         arch_preboot_os();
 583                         boot_fn(BOOTM_STATE_OS_GO, argc, argv, &images);
 584                         break;
 585         }
 586
 587         return ret;
 588 }
 589
 590 /*******************************************************************/
 591 /* bootm - boot application image from image in memory */
 592 /*******************************************************************/
 593
 594 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 595 {
 596         ulong           iflag;
 597         ulong           load_end = 0;
 598         int             ret;
 599         boot_os_fn      *boot_fn;
 600 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 601         static int relocated = 0;
 602
 603         if (!relocated) {
 604                 int i;
 605
 606                 /* relocate boot function table */
 607                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
 608                         if (boot_os[i] != NULL)
 609                                 boot_os[i] += gd->reloc_off;
 610
 611                 /* relocate names of sub-command table */
 612                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
 613                         cmd_bootm_sub[i].name += gd->reloc_off;
 614
 615                 relocated = 1;
 616         }
 617 #endif
 618
 619         /* determine if we have a sub command */
 620         if (argc > 1) {
 621                 char *endp;
 622
 623                 simple_strtoul(argv[1], &endp, 16);
 624                 /* endp pointing to NULL means that argv[1] was just a
 625                  * valid number, pass it along to the normal bootm processing
 626                  *
 627                  * If endp is ':' or '#' assume a FIT identifier so pass
 628                  * along for normal processing.
 629                  *
 630                  * Right now we assume the first arg should never be '-'
 631                  */
 632                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 633                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 634         }
 635
 636         if (bootm_start(cmdtp, flag, argc, argv))
 637                 return 1;
 638
 639         /*
 640          * We have reached the point of no return: we are going to
 641          * overwrite all exception vector code, so we cannot easily
 642          * recover from any failures any more...
 643          */
 644         iflag = disable_interrupts();
 645
 646 #ifdef CONFIG_NETCONSOLE
 647         /* Stop the ethernet stack if NetConsole could have left it up */
 648         eth_halt();
 649 #endif
 650
 651 #if defined(CONFIG_CMD_USB)
 652         /*
 653          * turn off USB to prevent the host controller from writing to the
 654          * SDRAM while Linux is booting. This could happen (at least for OHCI
 655          * controller), because the HCCA (Host Controller Communication Area)
 656          * lies within the SDRAM and the host controller writes continously to
 657          * this area (as busmaster!). The HccaFrameNumber is for example
 658          * updated every 1 ms within the HCCA structure in SDRAM! For more
 659          * details see the OpenHCI specification.
 660          */
 661         usb_stop();
 662 #endif
 663
 664         ret = bootm_load_os(images.os, &load_end, 1);
 665
 666         if (ret < 0) {
 667                 if (ret == BOOTM_ERR_RESET)
 668                         do_reset(cmdtp, flag, argc, argv);
 669                 if (ret == BOOTM_ERR_OVERLAP) {
 670                         if (images.legacy_hdr_valid) {
 671                                 image_header_t *hdr;
 672                                 hdr = &images.legacy_hdr_os_copy;
 673                                 if (image_get_type(hdr) == IH_TYPE_MULTI)
 674                                         puts("WARNING: legacy format multi "
 675                                                 "component image "
 676                                                 "overwritten\n");
 677                         } else {
 678                                 puts("ERROR: new format image overwritten - "
 679                                         "must RESET the board to recover\n");
 680                                 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 681                                 do_reset(cmdtp, flag, argc, argv);
 682                         }
 683                 }
 684                 if (ret == BOOTM_ERR_UNIMPLEMENTED) {
 685                         if (iflag)
 686                                 enable_interrupts();
 687                         bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 688                         return 1;
 689                 }
 690         }
 691
 692         lmb_reserve(&images.lmb, images.os.load, (load_end - images.os.load));
 693
 694         if (images.os.type == IH_TYPE_STANDALONE) {
 695                 if (iflag)
 696                         enable_interrupts();
 697                 /* This may return when 'autostart' is 'no' */
 698                 bootm_start_standalone(iflag, argc, argv);
 699                 return 0;
 700         }
 701
 702         bootstage_mark(BOOTSTAGE_ID_CHECK_BOOT_OS);
 703
 704 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
 705         if (images.os.os == IH_OS_LINUX)
 706                 fixup_silent_linux();
 707 #endif
 708
 709         boot_fn = boot_os[images.os.os];
 710
 711         if (boot_fn == NULL) {
 712                 if (iflag)
 713                         enable_interrupts();
 714                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 715                         genimg_get_os_name(images.os.os), images.os.os);
 716                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 717                 return 1;
 718         }
 719
 720         arch_preboot_os();
 721
 722         boot_fn(0, argc, argv, &images);
 723
 724         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
 725 #ifdef DEBUG
 726         puts("\n## Control returned to monitor - resetting...\n");
 727 #endif
 728         do_reset(cmdtp, flag, argc, argv);
 729
 730         return 1;
 731 }
 732
 733 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
 734 {
 735         const char *ep = getenv("autostart");
 736
 737         if (ep && !strcmp(ep, "yes")) {
 738                 char *local_args[2];
 739                 local_args[0] = (char *)cmd;
 740                 local_args[1] = NULL;
 741                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
 742                 return do_bootm(cmdtp, 0, 1, local_args);
 743         }
 744
 745         return 0;
 746 }
 747
 748 /**
 749  * image_get_kernel - verify legacy format kernel image
 750  * @img_addr: in RAM address of the legacy format image to be verified
 751  * @verify: data CRC verification flag
 752  *
 753  * image_get_kernel() verifies legacy image integrity and returns pointer to
 754  * legacy image header if image verification was completed successfully.
 755  *
 756  * returns:
 757  *     pointer to a legacy image header if valid image was found
 758  *     otherwise return NULL
 759  */
 760 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 761 {
 762         image_header_t *hdr = (image_header_t *)img_addr;
 763
 764         if (!image_check_magic(hdr)) {
 765                 puts("Bad Magic Number\n");
 766                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 767                 return NULL;
 768         }
 769         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 770
 771         if (!image_check_hcrc(hdr)) {
 772                 puts("Bad Header Checksum\n");
 773                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 774                 return NULL;
 775         }
 776
 777         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 778         image_print_contents(hdr);
 779
 780         if (verify) {
 781                 puts("   Verifying Checksum ... ");
 782                 if (!image_check_dcrc(hdr)) {
 783                         printf("Bad Data CRC\n");
 784                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 785                         return NULL;
 786                 }
 787                 puts("OK\n");
 788         }
 789         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 790
 791         if (!image_check_target_arch(hdr)) {
 792                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 793                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 794                 return NULL;
 795         }
 796         return hdr;
 797 }
 798
 799 /**
 800  * fit_check_kernel - verify FIT format kernel subimage
 801  * @fit_hdr: pointer to the FIT image header
 802  * os_noffset: kernel subimage node offset within FIT image
 803  * @verify: data CRC verification flag
 804  *
 805  * fit_check_kernel() verifies integrity of the kernel subimage and from
 806  * specified FIT image.
 807  *
 808  * returns:
 809  *     1, on success
 810  *     0, on failure
 811  */
 812 #if defined(CONFIG_FIT)
 813 static int fit_check_kernel(const void *fit, int os_noffset, int verify)
 814 {
 815         fit_image_print(fit, os_noffset, "   ");
 816
 817         if (verify) {
 818                 puts("   Verifying Hash Integrity ... ");
 819                 if (!fit_image_verify(fit, os_noffset)) {
 820                         puts("Bad Data Hash\n");
 821                         bootstage_error(BOOTSTAGE_ID_FIT_CHECK_HASH);
 822                         return 0;
 823                 }
 824                 puts("OK\n");
 825         }
 826         bootstage_mark(BOOTSTAGE_ID_FIT_CHECK_ARCH);
 827
 828         if (!fit_image_check_target_arch(fit, os_noffset)) {
 829                 puts("Unsupported Architecture\n");
 830                 bootstage_error(BOOTSTAGE_ID_FIT_CHECK_ARCH);
 831                 return 0;
 832         }
 833
 834         bootstage_mark(BOOTSTAGE_ID_FIT_CHECK_KERNEL);
 835         if (!fit_image_check_type(fit, os_noffset, IH_TYPE_KERNEL) &&
 836             !fit_image_check_type(fit, os_noffset, IH_TYPE_KERNEL_NOLOAD)) {
 837                 puts("Not a kernel image\n");
 838                 bootstage_error(BOOTSTAGE_ID_FIT_CHECK_KERNEL);
 839                 return 0;
 840         }
 841
 842         bootstage_mark(BOOTSTAGE_ID_FIT_CHECKED);
 843         return 1;
 844 }
 845 #endif /* CONFIG_FIT */
 846
 847 /**
 848  * boot_get_kernel - find kernel image
 849  * @os_data: pointer to a ulong variable, will hold os data start address
 850  * @os_len: pointer to a ulong variable, will hold os data length
 851  *
 852  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 853  * and locates kernel data.
 854  *
 855  * returns:
 856  *     pointer to image header if valid image was found, plus kernel start
 857  *     address and length, otherwise NULL
 858  */
 859 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 860                 char * const argv[], bootm_headers_t *images, ulong *os_data,
 861                 ulong *os_len)
 862 {
 863         image_header_t  *hdr;
 864         ulong           img_addr;
 865         const void *buf;
 866 #if defined(CONFIG_FIT)
 867         const void      *fit_hdr;
 868         const char      *fit_uname_config = NULL;
 869         const char      *fit_uname_kernel = NULL;
 870         const void      *data;
 871         size_t          len;
 872         int             cfg_noffset;
 873         int             os_noffset;
 874 #endif
 875
 876         /* find out kernel image address */
 877         if (argc < 2) {
 878                 img_addr = load_addr;
 879                 debug("*  kernel: default image load address = 0x%08lx\n",
 880                                 load_addr);
 881 #if defined(CONFIG_FIT)
 882         } else if (fit_parse_conf(argv[1], load_addr, &img_addr,
 883                                                         &fit_uname_config)) {
 884                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
 885                                 fit_uname_config, img_addr);
 886         } else if (fit_parse_subimage(argv[1], load_addr, &img_addr,
 887                                                         &fit_uname_kernel)) {
 888                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
 889                                 fit_uname_kernel, img_addr);
 890 #endif
 891         } else {
 892                 img_addr = simple_strtoul(argv[1], NULL, 16);
 893                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 894         }
 895
 896         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 897
 898         /* copy from dataflash if needed */
 899         img_addr = genimg_get_image(img_addr);
 900
 901         /* check image type, for FIT images get FIT kernel node */
 902         *os_data = *os_len = 0;
 903         buf = map_sysmem(img_addr, 0);
 904         switch (genimg_get_format(buf)) {
 905         case IMAGE_FORMAT_LEGACY:
 906                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 907                                 img_addr);
 908                 hdr = image_get_kernel(img_addr, images->verify);
 909                 if (!hdr)
 910                         return NULL;
 911                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 912
 913                 /* get os_data and os_len */
 914                 switch (image_get_type(hdr)) {
 915                 case IH_TYPE_KERNEL:
 916                 case IH_TYPE_KERNEL_NOLOAD:
 917                         *os_data = image_get_data(hdr);
 918                         *os_len = image_get_data_size(hdr);
 919                         break;
 920                 case IH_TYPE_MULTI:
 921                         image_multi_getimg(hdr, 0, os_data, os_len);
 922                         break;
 923                 case IH_TYPE_STANDALONE:
 924                         *os_data = image_get_data(hdr);
 925                         *os_len = image_get_data_size(hdr);
 926                         break;
 927                 default:
 928                         printf("Wrong Image Type for %s command\n",
 929                                 cmdtp->name);
 930                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 931                         return NULL;
 932                 }
 933
 934                 /*
 935                  * copy image header to allow for image overwrites during
 936                  * kernel decompression.
 937                  */
 938                 memmove(&images->legacy_hdr_os_copy, hdr,
 939                         sizeof(image_header_t));
 940
 941                 /* save pointer to image header */
 942                 images->legacy_hdr_os = hdr;
 943
 944                 images->legacy_hdr_valid = 1;
 945                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 946                 break;
 947 #if defined(CONFIG_FIT)
 948         case IMAGE_FORMAT_FIT:
 949                 fit_hdr = buf;
 950                 printf("## Booting kernel from FIT Image at %08lx ...\n",
 951                                 img_addr);
 952
 953                 if (!fit_check_format(fit_hdr)) {
 954                         puts("Bad FIT kernel image format!\n");
 955                         bootstage_error(BOOTSTAGE_ID_FIT_FORMAT);
 956                         return NULL;
 957                 }
 958                 bootstage_mark(BOOTSTAGE_ID_FIT_FORMAT);
 959
 960                 if (!fit_uname_kernel) {
 961                         /*
 962                          * no kernel image node unit name, try to get config
 963                          * node first. If config unit node name is NULL
 964                          * fit_conf_get_node() will try to find default config
 965                          * node
 966                          */
 967                         bootstage_mark(BOOTSTAGE_ID_FIT_NO_UNIT_NAME);
 968 #ifdef CONFIG_FIT_BEST_MATCH
 969                         if (fit_uname_config)
 970                                 cfg_noffset =
 971                                         fit_conf_get_node(fit_hdr,
 972                                                           fit_uname_config);
 973                         else
 974                                 cfg_noffset =
 975                                         fit_conf_find_compat(fit_hdr,
 976                                                              gd->fdt_blob);
 977 #else
 978                         cfg_noffset = fit_conf_get_node(fit_hdr,
 979                                                         fit_uname_config);
 980 #endif
 981                         if (cfg_noffset < 0) {
 982                                 bootstage_error(BOOTSTAGE_ID_FIT_NO_UNIT_NAME);
 983                                 return NULL;
 984                         }
 985                         /* save configuration uname provided in the first
 986                          * bootm argument
 987                          */
 988                         images->fit_uname_cfg = fdt_get_name(fit_hdr,
 989                                                                 cfg_noffset,
 990                                                                 NULL);
 991                         printf("   Using '%s' configuration\n",
 992                                 images->fit_uname_cfg);
 993                         bootstage_mark(BOOTSTAGE_ID_FIT_CONFIG);
 994
 995                         os_noffset = fit_conf_get_kernel_node(fit_hdr,
 996                                                                 cfg_noffset);
 997                         fit_uname_kernel = fit_get_name(fit_hdr, os_noffset,
 998                                                         NULL);
 999                 } else {
1000                         /* get kernel component image node offset */
1001                         bootstage_mark(BOOTSTAGE_ID_FIT_UNIT_NAME);
1002                         os_noffset = fit_image_get_node(fit_hdr,
1003                                                         fit_uname_kernel);
1004                 }
1005                 if (os_noffset < 0) {
1006                         bootstage_error(BOOTSTAGE_ID_FIT_CONFIG);
1007                         return NULL;
1008                 }
1009
1010                 printf("   Trying '%s' kernel subimage\n", fit_uname_kernel);
1011
1012                 bootstage_mark(BOOTSTAGE_ID_FIT_CHECK_SUBIMAGE);
1013                 if (!fit_check_kernel(fit_hdr, os_noffset, images->verify))
1014                         return NULL;
1015
1016                 /* get kernel image data address and length */
1017                 if (fit_image_get_data(fit_hdr, os_noffset, &data, &len)) {
1018                         puts("Could not find kernel subimage data!\n");
1019                         bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO_ERR);
1020                         return NULL;
1021                 }
1022                 bootstage_mark(BOOTSTAGE_ID_FIT_KERNEL_INFO);
1023
1024                 *os_len = len;
1025                 *os_data = (ulong)data;
1026                 images->fit_hdr_os = (void *)fit_hdr;
1027                 images->fit_uname_os = fit_uname_kernel;
1028                 images->fit_noffset_os = os_noffset;
1029                 break;
1030 #endif
1031         default:
1032                 printf("Wrong Image Format for %s command\n", cmdtp->name);
1033                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
1034                 return NULL;
1035         }
1036
1037         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
1038                         *os_data, *os_len, *os_len);
1039
1040         return buf;
1041 }
1042
1043 #ifdef CONFIG_SYS_LONGHELP
1044 static char bootm_help_text[] =
1045         "[addr [arg ...]]\n    - boot application image stored in memory\n"
1046         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
1047         "\t'arg' can be the address of an initrd image\n"
1048 #if defined(CONFIG_OF_LIBFDT)
1049         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1050         "\ta third argument is required which is the address of the\n"
1051         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1052         "\tuse a '-' for the second argument. If you do not pass a third\n"
1053         "\ta bd_info struct will be passed instead\n"
1054 #endif
1055 #if defined(CONFIG_FIT)
1056         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1057         "\tmust be extened to include component or configuration unit name:\n"
1058         "\taddr:<subimg_uname> - direct component image specification\n"
1059         "\taddr#<conf_uname>   - configuration specification\n"
1060         "\tUse iminfo command to get the list of existing component\n"
1061         "\timages and configurations.\n"
1062 #endif
1063         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1064         "must be\n"
1065         "issued in the order below (it's ok to not issue all sub-commands):\n"
1066         "\tstart [addr [arg ...]]\n"
1067         "\tloados  - load OS image\n"
1068 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
1069         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1070 #endif
1071 #if defined(CONFIG_OF_LIBFDT)
1072         "\tfdt     - relocate flat device tree\n"
1073 #endif
1074         "\tcmdline - OS specific command line processing/setup\n"
1075         "\tbdt     - OS specific bd_t processing\n"
1076         "\tprep    - OS specific prep before relocation or go\n"
1077         "\tgo      - start OS";
1078 #endif
1079
1080 U_BOOT_CMD(
1081         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1082         "boot application image from memory", bootm_help_text
1083 );
1084
1085 /*******************************************************************/
1086 /* bootd - boot default image */
1087 /*******************************************************************/
1088 #if defined(CONFIG_CMD_BOOTD)
1089 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1090 {
1091         int rcode = 0;
1092
1093         if (run_command(getenv("bootcmd"), flag) < 0)
1094                 rcode = 1;
1095         return rcode;
1096 }
1097
1098 U_BOOT_CMD(
1099         boot,   1,      1,      do_bootd,
1100         "boot default, i.e., run 'bootcmd'",
1101         ""
1102 );
1103
1104 /* keep old command name "bootd" for backward compatibility */
1105 U_BOOT_CMD(
1106         bootd, 1,       1,      do_bootd,
1107         "boot default, i.e., run 'bootcmd'",
1108         ""
1109 );
1110
1111 #endif
1112
1113
1114 /*******************************************************************/
1115 /* iminfo - print header info for a requested image */
1116 /*******************************************************************/
1117 #if defined(CONFIG_CMD_IMI)
1118 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1119 {
1120         int     arg;
1121         ulong   addr;
1122         int     rcode = 0;
1123
1124         if (argc < 2) {
1125                 return image_info(load_addr);
1126         }
1127
1128         for (arg = 1; arg < argc; ++arg) {
1129                 addr = simple_strtoul(argv[arg], NULL, 16);
1130                 if (image_info(addr) != 0)
1131                         rcode = 1;
1132         }
1133         return rcode;
1134 }
1135
1136 static int image_info(ulong addr)
1137 {
1138         void *hdr = (void *)addr;
1139
1140         printf("\n## Checking Image at %08lx ...\n", addr);
1141
1142         switch (genimg_get_format(hdr)) {
1143         case IMAGE_FORMAT_LEGACY:
1144                 puts("   Legacy image found\n");
1145                 if (!image_check_magic(hdr)) {
1146                         puts("   Bad Magic Number\n");
1147                         return 1;
1148                 }
1149
1150                 if (!image_check_hcrc(hdr)) {
1151                         puts("   Bad Header Checksum\n");
1152                         return 1;
1153                 }
1154
1155                 image_print_contents(hdr);
1156
1157                 puts("   Verifying Checksum ... ");
1158                 if (!image_check_dcrc(hdr)) {
1159                         puts("   Bad Data CRC\n");
1160                         return 1;
1161                 }
1162                 puts("OK\n");
1163                 return 0;
1164 #if defined(CONFIG_FIT)
1165         case IMAGE_FORMAT_FIT:
1166                 puts("   FIT image found\n");
1167
1168                 if (!fit_check_format(hdr)) {
1169                         puts("Bad FIT image format!\n");
1170                         return 1;
1171                 }
1172
1173                 fit_print_contents(hdr);
1174
1175                 if (!fit_all_image_verify(hdr)) {
1176                         puts("Bad hash in FIT image!\n");
1177                         return 1;
1178                 }
1179
1180                 return 0;
1181 #endif
1182         default:
1183                 puts("Unknown image format!\n");
1184                 break;
1185         }
1186
1187         return 1;
1188 }
1189
1190 U_BOOT_CMD(
1191         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1192         "print header information for application image",
1193         "addr [addr ...]\n"
1194         "    - print header information for application image starting at\n"
1195         "      address 'addr' in memory; this includes verification of the\n"
1196         "      image contents (magic number, header and payload checksums)"
1197 );
1198 #endif
1199
1200
1201 /*******************************************************************/
1202 /* imls - list all images found in flash */
1203 /*******************************************************************/
1204 #if defined(CONFIG_CMD_IMLS)
1205 static int do_imls_nor(void)
1206 {
1207         flash_info_t *info;
1208         int i, j;
1209         void *hdr;
1210
1211         for (i = 0, info = &flash_info[0];
1212                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1213
1214                 if (info->flash_id == FLASH_UNKNOWN)
1215                         goto next_bank;
1216                 for (j = 0; j < info->sector_count; ++j) {
1217
1218                         hdr = (void *)info->start[j];
1219                         if (!hdr)
1220                                 goto next_sector;
1221
1222                         switch (genimg_get_format(hdr)) {
1223                         case IMAGE_FORMAT_LEGACY:
1224                                 if (!image_check_hcrc(hdr))
1225                                         goto next_sector;
1226
1227                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1228                                 image_print_contents(hdr);
1229
1230                                 puts("   Verifying Checksum ... ");
1231                                 if (!image_check_dcrc(hdr)) {
1232                                         puts("Bad Data CRC\n");
1233                                 } else {
1234                                         puts("OK\n");
1235                                 }
1236                                 break;
1237 #if defined(CONFIG_FIT)
1238                         case IMAGE_FORMAT_FIT:
1239                                 if (!fit_check_format(hdr))
1240                                         goto next_sector;
1241
1242                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1243                                 fit_print_contents(hdr);
1244                                 break;
1245 #endif
1246                         default:
1247                                 goto next_sector;
1248                         }
1249
1250 next_sector:            ;
1251                 }
1252 next_bank:      ;
1253         }
1254         return 0;
1255 }
1256 #endif
1257
1258 #if defined(CONFIG_CMD_IMLS_NAND)
1259 static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
1260                 size_t len)
1261 {
1262         void *imgdata;
1263         int ret;
1264
1265         imgdata = malloc(len);
1266         if (!imgdata) {
1267                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
1268                                 nand_dev, off);
1269                 printf("   Low memory(cannot allocate memory for image)\n");
1270                 return -ENOMEM;
1271         }
1272
1273         ret = nand_read_skip_bad(nand, off, &len,
1274                         imgdata);
1275         if (ret < 0 && ret != -EUCLEAN) {
1276                 free(imgdata);
1277                 return ret;
1278         }
1279
1280         if (!image_check_hcrc(imgdata)) {
1281                 free(imgdata);
1282                 return 0;
1283         }
1284
1285         printf("Legacy Image at NAND device %d offset %08llX:\n",
1286                         nand_dev, off);
1287         image_print_contents(imgdata);
1288
1289         puts("   Verifying Checksum ... ");
1290         if (!image_check_dcrc(imgdata))
1291                 puts("Bad Data CRC\n");
1292         else
1293                 puts("OK\n");
1294
1295         free(imgdata);
1296
1297         return 0;
1298 }
1299
1300 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
1301                 size_t len)
1302 {
1303         void *imgdata;
1304         int ret;
1305
1306         imgdata = malloc(len);
1307         if (!imgdata) {
1308                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
1309                                 nand_dev, off);
1310                 printf("   Low memory(cannot allocate memory for image)\n");
1311                 return -ENOMEM;
1312         }
1313
1314         ret = nand_read_skip_bad(nand, off, &len,
1315                         imgdata);
1316         if (ret < 0 && ret != -EUCLEAN) {
1317                 free(imgdata);
1318                 return ret;
1319         }
1320
1321         if (!fit_check_format(imgdata)) {
1322                 free(imgdata);
1323                 return 0;
1324         }
1325
1326         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
1327
1328         fit_print_contents(imgdata);
1329         free(imgdata);
1330
1331         return 0;
1332 }
1333
1334 static int do_imls_nand(void)
1335 {
1336         nand_info_t *nand;
1337         int nand_dev = nand_curr_device;
1338         size_t len;
1339         loff_t off;
1340         u32 buffer[16];
1341
1342         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
1343                 puts("\nNo NAND devices available\n");
1344                 return -ENODEV;
1345         }
1346
1347         printf("\n");
1348
1349         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
1350                 nand = &nand_info[nand_dev];
1351                 if (!nand->name || !nand->size)
1352                         continue;
1353
1354                 for (off = 0; off < nand->size; off += nand->erasesize) {
1355                         const image_header_t *header;
1356                         int ret;
1357
1358                         if (nand_block_isbad(nand, off))
1359                                 continue;
1360
1361                         len = sizeof(buffer);
1362
1363                         ret = nand_read(nand, off, &len, (u8 *)buffer);
1364                         if (ret < 0 && ret != -EUCLEAN) {
1365                                 printf("NAND read error %d at offset %08llX\n",
1366                                                 ret, off);
1367                                 continue;
1368                         }
1369
1370                         switch (genimg_get_format(buffer)) {
1371                         case IMAGE_FORMAT_LEGACY:
1372                                 header = (const image_header_t *)buffer;
1373
1374                                 len = image_get_image_size(header);
1375                                 nand_imls_legacyimage(nand, nand_dev, off, len);
1376                                 break;
1377 #if defined(CONFIG_FIT)
1378                         case IMAGE_FORMAT_FIT:
1379                                 len = fit_get_size(buffer);
1380                                 nand_imls_fitimage(nand, nand_dev, off, len);
1381                                 break;
1382 #endif
1383                         }
1384                 }
1385         }
1386
1387         return 0;
1388 }
1389 #endif
1390
1391 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
1392 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1393 {
1394         int ret_nor = 0, ret_nand = 0;
1395
1396 #if defined(CONFIG_CMD_IMLS)
1397         ret_nor = do_imls_nor();
1398 #endif
1399
1400 #if defined(CONFIG_CMD_IMLS_NAND)
1401         ret_nand = do_imls_nand();
1402 #endif
1403
1404         if (ret_nor)
1405                 return ret_nor;
1406
1407         if (ret_nand)
1408                 return ret_nand;
1409
1410         return (0);
1411 }
1412
1413 U_BOOT_CMD(
1414         imls,   1,              1,      do_imls,
1415         "list all images found in flash",
1416         "\n"
1417         "    - Prints information about all images found at sector/block\n"
1418         "      boundaries in nor/nand flash."
1419 );
1420 #endif
1421
1422 /*******************************************************************/
1423 /* helper routines */
1424 /*******************************************************************/
1425 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1426
1427 #define CONSOLE_ARG     "console="
1428 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
1429
1430 static void fixup_silent_linux(void)
1431 {
1432         char *buf;
1433         const char *env_val;
1434         char *cmdline = getenv("bootargs");
1435
1436         /* Only fix cmdline when requested */
1437         if (!(gd->flags & GD_FLG_SILENT))
1438                 return;
1439
1440         debug("before silent fix-up: %s\n", cmdline);
1441         if (cmdline && (cmdline[0] != '\0')) {
1442                 char *start = strstr(cmdline, CONSOLE_ARG);
1443
1444                 /* Allocate space for maximum possible new command line */
1445                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
1446                 if (!buf) {
1447                         debug("%s: out of memory\n", __func__);
1448                         return;
1449                 }
1450
1451                 if (start) {
1452                         char *end = strchr(start, ' ');
1453                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
1454
1455                         strncpy(buf, cmdline, num_start_bytes);
1456                         if (end)
1457                                 strcpy(buf + num_start_bytes, end);
1458                         else
1459                                 buf[num_start_bytes] = '\0';
1460                 } else {
1461                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
1462                 }
1463                 env_val = buf;
1464         } else {
1465                 buf = NULL;
1466                 env_val = CONSOLE_ARG;
1467         }
1468
1469         setenv("bootargs", env_val);
1470         debug("after silent fix-up: %s\n", env_val);
1471         free(buf);
1472 }
1473 #endif /* CONFIG_SILENT_CONSOLE */
1474
1475
1476 /*******************************************************************/
1477 /* OS booting routines */
1478 /*******************************************************************/
1479
1480 #ifdef CONFIG_BOOTM_NETBSD
1481 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1482                             bootm_headers_t *images)
1483 {
1484         void (*loader)(bd_t *, image_header_t *, char *, char *);
1485         image_header_t *os_hdr, *hdr;
1486         ulong kernel_data, kernel_len;
1487         char *consdev;
1488         char *cmdline;
1489
1490         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1491                 return 1;
1492
1493 #if defined(CONFIG_FIT)
1494         if (!images->legacy_hdr_valid) {
1495                 fit_unsupported_reset("NetBSD");
1496                 return 1;
1497         }
1498 #endif
1499         hdr = images->legacy_hdr_os;
1500
1501         /*
1502          * Booting a (NetBSD) kernel image
1503          *
1504          * This process is pretty similar to a standalone application:
1505          * The (first part of an multi-) image must be a stage-2 loader,
1506          * which in turn is responsible for loading & invoking the actual
1507          * kernel.  The only differences are the parameters being passed:
1508          * besides the board info strucure, the loader expects a command
1509          * line, the name of the console device, and (optionally) the
1510          * address of the original image header.
1511          */
1512         os_hdr = NULL;
1513         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1514                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1515                 if (kernel_len)
1516                         os_hdr = hdr;
1517         }
1518
1519         consdev = "";
1520 #if   defined(CONFIG_8xx_CONS_SMC1)
1521         consdev = "smc1";
1522 #elif defined(CONFIG_8xx_CONS_SMC2)
1523         consdev = "smc2";
1524 #elif defined(CONFIG_8xx_CONS_SCC2)
1525         consdev = "scc2";
1526 #elif defined(CONFIG_8xx_CONS_SCC3)
1527         consdev = "scc3";
1528 #endif
1529
1530         if (argc > 2) {
1531                 ulong len;
1532                 int   i;
1533
1534                 for (i = 2, len = 0; i < argc; i += 1)
1535                         len += strlen(argv[i]) + 1;
1536                 cmdline = malloc(len);
1537
1538                 for (i = 2, len = 0; i < argc; i += 1) {
1539                         if (i > 2)
1540                                 cmdline[len++] = ' ';
1541                         strcpy(&cmdline[len], argv[i]);
1542                         len += strlen(argv[i]);
1543                 }
1544         } else if ((cmdline = getenv("bootargs")) == NULL) {
1545                 cmdline = "";
1546         }
1547
1548         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1549
1550         printf("## Transferring control to NetBSD stage-2 loader "
1551                 "(at address %08lx) ...\n",
1552                 (ulong)loader);
1553
1554         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1555
1556         /*
1557          * NetBSD Stage-2 Loader Parameters:
1558          *   r3: ptr to board info data
1559          *   r4: image address
1560          *   r5: console device
1561          *   r6: boot args string
1562          */
1563         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1564
1565         return 1;
1566 }
1567 #endif /* CONFIG_BOOTM_NETBSD*/
1568
1569 #ifdef CONFIG_LYNXKDI
1570 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1571                              bootm_headers_t *images)
1572 {
1573         image_header_t *hdr = &images->legacy_hdr_os_copy;
1574
1575         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1576                 return 1;
1577
1578 #if defined(CONFIG_FIT)
1579         if (!images->legacy_hdr_valid) {
1580                 fit_unsupported_reset("Lynx");
1581                 return 1;
1582         }
1583 #endif
1584
1585         lynxkdi_boot((image_header_t *)hdr);
1586
1587         return 1;
1588 }
1589 #endif /* CONFIG_LYNXKDI */
1590
1591 #ifdef CONFIG_BOOTM_RTEMS
1592 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1593                            bootm_headers_t *images)
1594 {
1595         void (*entry_point)(bd_t *);
1596
1597         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1598                 return 1;
1599
1600 #if defined(CONFIG_FIT)
1601         if (!images->legacy_hdr_valid) {
1602                 fit_unsupported_reset("RTEMS");
1603                 return 1;
1604         }
1605 #endif
1606
1607         entry_point = (void (*)(bd_t *))images->ep;
1608
1609         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1610                 (ulong)entry_point);
1611
1612         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1613
1614         /*
1615          * RTEMS Parameters:
1616          *   r3: ptr to board info data
1617          */
1618         (*entry_point)(gd->bd);
1619
1620         return 1;
1621 }
1622 #endif /* CONFIG_BOOTM_RTEMS */
1623
1624 #if defined(CONFIG_BOOTM_OSE)
1625 static int do_bootm_ose(int flag, int argc, char * const argv[],
1626                            bootm_headers_t *images)
1627 {
1628         void (*entry_point)(void);
1629
1630         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1631                 return 1;
1632
1633 #if defined(CONFIG_FIT)
1634         if (!images->legacy_hdr_valid) {
1635                 fit_unsupported_reset("OSE");
1636                 return 1;
1637         }
1638 #endif
1639
1640         entry_point = (void (*)(void))images->ep;
1641
1642         printf("## Transferring control to OSE (at address %08lx) ...\n",
1643                 (ulong)entry_point);
1644
1645         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1646
1647         /*
1648          * OSE Parameters:
1649          *   None
1650          */
1651         (*entry_point)();
1652
1653         return 1;
1654 }
1655 #endif /* CONFIG_BOOTM_OSE */
1656
1657 #if defined(CONFIG_BOOTM_PLAN9)
1658 static int do_bootm_plan9(int flag, int argc, char * const argv[],
1659                            bootm_headers_t *images)
1660 {
1661         void (*entry_point)(void);
1662
1663         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1664                 return 1;
1665
1666 #if defined(CONFIG_FIT)
1667         if (!images->legacy_hdr_valid) {
1668                 fit_unsupported_reset("Plan 9");
1669                 return 1;
1670         }
1671 #endif
1672
1673         entry_point = (void (*)(void))images->ep;
1674
1675         printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
1676                 (ulong)entry_point);
1677
1678         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1679
1680         /*
1681          * Plan 9 Parameters:
1682          *   None
1683          */
1684         (*entry_point)();
1685
1686         return 1;
1687 }
1688 #endif /* CONFIG_BOOTM_PLAN9 */
1689
1690 #if defined(CONFIG_CMD_ELF)
1691 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1692                              bootm_headers_t *images)
1693 {
1694         char str[80];
1695
1696         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1697                 return 1;
1698
1699 #if defined(CONFIG_FIT)
1700         if (!images->legacy_hdr_valid) {
1701                 fit_unsupported_reset("VxWorks");
1702                 return 1;
1703         }
1704 #endif
1705
1706         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1707         setenv("loadaddr", str);
1708         do_bootvx(NULL, 0, 0, NULL);
1709
1710         return 1;
1711 }
1712
1713 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1714                             bootm_headers_t *images)
1715 {
1716         char *local_args[2];
1717         char str[16];
1718
1719         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1720                 return 1;
1721
1722 #if defined(CONFIG_FIT)
1723         if (!images->legacy_hdr_valid) {
1724                 fit_unsupported_reset("QNX");
1725                 return 1;
1726         }
1727 #endif
1728
1729         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1730         local_args[0] = argv[0];
1731         local_args[1] = str;    /* and provide it via the arguments */
1732         do_bootelf(NULL, 0, 2, local_args);
1733
1734         return 1;
1735 }
1736 #endif
1737
1738 #ifdef CONFIG_INTEGRITY
1739 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1740                            bootm_headers_t *images)
1741 {
1742         void (*entry_point)(void);
1743
1744         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1745                 return 1;
1746
1747 #if defined(CONFIG_FIT)
1748         if (!images->legacy_hdr_valid) {
1749                 fit_unsupported_reset("INTEGRITY");
1750                 return 1;
1751         }
1752 #endif
1753
1754         entry_point = (void (*)(void))images->ep;
1755
1756         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1757                 (ulong)entry_point);
1758
1759         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1760
1761         /*
1762          * INTEGRITY Parameters:
1763          *   None
1764          */
1765         (*entry_point)();
1766
1767         return 1;
1768 }
1769 #endif
1770
1771 #ifdef CONFIG_CMD_BOOTZ
1772
1773 static int __bootz_setup(void *image, void **start, void **end)
1774 {
1775         /* Please define bootz_setup() for your platform */
1776
1777         puts("Your platform's zImage format isn't supported yet!\n");
1778         return -1;
1779 }
1780 int bootz_setup(void *image, void **start, void **end)
1781         __attribute__((weak, alias("__bootz_setup")));
1782
1783 /*
1784  * zImage booting support
1785  */
1786 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1787                         char * const argv[], bootm_headers_t *images)
1788 {
1789         int ret;
1790         void *zi_start, *zi_end;
1791
1792         memset(images, 0, sizeof(bootm_headers_t));
1793
1794         boot_start_lmb(images);
1795
1796         /* Setup Linux kernel zImage entry point */
1797         if (argc < 2) {
1798                 images->ep = load_addr;
1799                 debug("*  kernel: default image load address = 0x%08lx\n",
1800                                 load_addr);
1801         } else {
1802                 images->ep = simple_strtoul(argv[1], NULL, 16);
1803                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1804                         images->ep);
1805         }
1806
1807         ret = bootz_setup((void *)images->ep, &zi_start, &zi_end);
1808         if (ret != 0)
1809                 return 1;
1810
1811         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1812
1813         /* Find ramdisk */
1814         ret = boot_get_ramdisk(argc, argv, images, IH_INITRD_ARCH,
1815                         &images->rd_start, &images->rd_end);
1816         if (ret) {
1817                 puts("Ramdisk image is corrupt or invalid\n");
1818                 return 1;
1819         }
1820
1821 #if defined(CONFIG_OF_LIBFDT)
1822         /* find flattened device tree */
1823         ret = boot_get_fdt(flag, argc, argv, images,
1824                            &images->ft_addr, &images->ft_len);
1825         if (ret) {
1826                 puts("Could not find a valid device tree\n");
1827                 return 1;
1828         }
1829
1830         set_working_fdt_addr(images->ft_addr);
1831 #endif
1832
1833         return 0;
1834 }
1835
1836 static int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1837 {
1838         bootm_headers_t images;
1839
1840         if (bootz_start(cmdtp, flag, argc, argv, &images))
1841                 return 1;
1842
1843         /*
1844          * We have reached the point of no return: we are going to
1845          * overwrite all exception vector code, so we cannot easily
1846          * recover from any failures any more...
1847          */
1848         disable_interrupts();
1849
1850 #ifdef CONFIG_NETCONSOLE
1851         /* Stop the ethernet stack if NetConsole could have left it up */
1852         eth_halt();
1853 #endif
1854
1855 #if defined(CONFIG_CMD_USB)
1856         /*
1857          * turn off USB to prevent the host controller from writing to the
1858          * SDRAM while Linux is booting. This could happen (at least for OHCI
1859          * controller), because the HCCA (Host Controller Communication Area)
1860          * lies within the SDRAM and the host controller writes continously to
1861          * this area (as busmaster!). The HccaFrameNumber is for example
1862          * updated every 1 ms within the HCCA structure in SDRAM! For more
1863          * details see the OpenHCI specification.
1864          */
1865         usb_stop();
1866 #endif
1867
1868 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1869         fixup_silent_linux();
1870 #endif
1871         arch_preboot_os();
1872
1873         do_bootm_linux(0, argc, argv, &images);
1874 #ifdef DEBUG
1875         puts("\n## Control returned to monitor - resetting...\n");
1876 #endif
1877         do_reset(cmdtp, flag, argc, argv);
1878
1879         return 1;
1880 }
1881
1882 #ifdef CONFIG_SYS_LONGHELP
1883 static char bootz_help_text[] =
1884         "[addr [initrd[:size]] [fdt]]\n"
1885         "    - boot Linux zImage stored in memory\n"
1886         "\tThe argument 'initrd' is optional and specifies the address\n"
1887         "\tof the initrd in memory. The optional argument ':size' allows\n"
1888         "\tspecifying the size of RAW initrd.\n"
1889 #if defined(CONFIG_OF_LIBFDT)
1890         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1891         "\ta third argument is required which is the address of the\n"
1892         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1893         "\tuse a '-' for the second argument. If you do not pass a third\n"
1894         "\ta bd_info struct will be passed instead\n"
1895 #endif
1896         "";
1897 #endif
1898
1899 U_BOOT_CMD(
1900         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1901         "boot Linux zImage image from memory", bootz_help_text
1902 );
1903 #endif  /* CONFIG_CMD_BOOTZ */