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 <fdt.h>
  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 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  84 #endif
  85
  86 #ifdef CONFIG_SILENT_CONSOLE
  87 static void fixup_silent_linux(void);
  88 #endif
  89
  90 static image_header_t *image_get_kernel(ulong img_addr, int verify);
  91 #if defined(CONFIG_FIT)
  92 static int fit_check_kernel(const void *fit, int os_noffset, int verify);
  93 #endif
  94
  95 static void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
  96                                 char * const argv[], bootm_headers_t *images,
  97                                 ulong *os_data, ulong *os_len);
  98
  99 /*
 100  *  Continue booting an OS image; caller already has:
 101  *  - copied image header to global variable `header'
 102  *  - checked header magic number, checksums (both header & image),
 103  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
 104  *  - loaded (first part of) image to header load address,
 105  *  - disabled interrupts.
 106  */
 107 typedef int boot_os_fn(int flag, int argc, char * const argv[],
 108                         bootm_headers_t *images); /* pointers to os/initrd/fdt */
 109
 110 #ifdef CONFIG_BOOTM_LINUX
 111 extern boot_os_fn do_bootm_linux;
 112 #endif
 113 #ifdef CONFIG_BOOTM_NETBSD
 114 static boot_os_fn do_bootm_netbsd;
 115 #endif
 116 #if defined(CONFIG_LYNXKDI)
 117 static boot_os_fn do_bootm_lynxkdi;
 118 extern void lynxkdi_boot(image_header_t *);
 119 #endif
 120 #ifdef CONFIG_BOOTM_RTEMS
 121 static boot_os_fn do_bootm_rtems;
 122 #endif
 123 #if defined(CONFIG_BOOTM_OSE)
 124 static boot_os_fn do_bootm_ose;
 125 #endif
 126 #if defined(CONFIG_CMD_ELF)
 127 static boot_os_fn do_bootm_vxworks;
 128 static boot_os_fn do_bootm_qnxelf;
 129 int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 130 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 131 #endif
 132 #if defined(CONFIG_INTEGRITY)
 133 static boot_os_fn do_bootm_integrity;
 134 #endif
 135
 136 static boot_os_fn *boot_os[] = {
 137 #ifdef CONFIG_BOOTM_LINUX
 138         [IH_OS_LINUX] = do_bootm_linux,
 139 #endif
 140 #ifdef CONFIG_BOOTM_NETBSD
 141         [IH_OS_NETBSD] = do_bootm_netbsd,
 142 #endif
 143 #ifdef CONFIG_LYNXKDI
 144         [IH_OS_LYNXOS] = do_bootm_lynxkdi,
 145 #endif
 146 #ifdef CONFIG_BOOTM_RTEMS
 147         [IH_OS_RTEMS] = do_bootm_rtems,
 148 #endif
 149 #if defined(CONFIG_BOOTM_OSE)
 150         [IH_OS_OSE] = do_bootm_ose,
 151 #endif
 152 #if defined(CONFIG_CMD_ELF)
 153         [IH_OS_VXWORKS] = do_bootm_vxworks,
 154         [IH_OS_QNX] = do_bootm_qnxelf,
 155 #endif
 156 #ifdef CONFIG_INTEGRITY
 157         [IH_OS_INTEGRITY] = do_bootm_integrity,
 158 #endif
 159 };
 160
 161 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
 162
 163 /* Allow for arch specific config before we boot */
 164 static void __arch_preboot_os(void)
 165 {
 166         /* please define platform specific arch_preboot_os() */
 167 }
 168 void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
 169
 170 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
 171
 172 #ifdef CONFIG_LMB
 173 static void boot_start_lmb(bootm_headers_t *images)
 174 {
 175         ulong           mem_start;
 176         phys_size_t     mem_size;
 177
 178         lmb_init(&images->lmb);
 179
 180         mem_start = getenv_bootm_low();
 181         mem_size = getenv_bootm_size();
 182
 183         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
 184
 185         arch_lmb_reserve(&images->lmb);
 186         board_lmb_reserve(&images->lmb);
 187 }
 188 #else
 189 #define lmb_reserve(lmb, base, size)
 190 static inline void boot_start_lmb(bootm_headers_t *images) { }
 191 #endif
 192
 193 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 194 {
 195         void            *os_hdr;
 196         int             ret;
 197
 198         memset((void *)&images, 0, sizeof(images));
 199         images.verify = getenv_yesno("verify");
 200
 201         boot_start_lmb(&images);
 202
 203         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
 204
 205         /* get kernel image header, start address and length */
 206         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
 207                         &images, &images.os.image_start, &images.os.image_len);
 208         if (images.os.image_len == 0) {
 209                 puts("ERROR: can't get kernel image!\n");
 210                 return 1;
 211         }
 212
 213         /* get image parameters */
 214         switch (genimg_get_format(os_hdr)) {
 215         case IMAGE_FORMAT_LEGACY:
 216                 images.os.type = image_get_type(os_hdr);
 217                 images.os.comp = image_get_comp(os_hdr);
 218                 images.os.os = image_get_os(os_hdr);
 219
 220                 images.os.end = image_get_image_end(os_hdr);
 221                 images.os.load = image_get_load(os_hdr);
 222                 break;
 223 #if defined(CONFIG_FIT)
 224         case IMAGE_FORMAT_FIT:
 225                 if (fit_image_get_type(images.fit_hdr_os,
 226                                         images.fit_noffset_os, &images.os.type)) {
 227                         puts("Can't get image type!\n");
 228                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 229                         return 1;
 230                 }
 231
 232                 if (fit_image_get_comp(images.fit_hdr_os,
 233                                         images.fit_noffset_os, &images.os.comp)) {
 234                         puts("Can't get image compression!\n");
 235                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 236                         return 1;
 237                 }
 238
 239                 if (fit_image_get_os(images.fit_hdr_os,
 240                                         images.fit_noffset_os, &images.os.os)) {
 241                         puts("Can't get image OS!\n");
 242                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 243                         return 1;
 244                 }
 245
 246                 images.os.end = fit_get_end(images.fit_hdr_os);
 247
 248                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 249                                         &images.os.load)) {
 250                         puts("Can't get image load address!\n");
 251                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 252                         return 1;
 253                 }
 254                 break;
 255 #endif
 256         default:
 257                 puts("ERROR: unknown image format type!\n");
 258                 return 1;
 259         }
 260
 261         /* find kernel entry point */
 262         if (images.legacy_hdr_valid) {
 263                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 264 #if defined(CONFIG_FIT)
 265         } else if (images.fit_uname_os) {
 266                 ret = fit_image_get_entry(images.fit_hdr_os,
 267                                 images.fit_noffset_os, &images.ep);
 268                 if (ret) {
 269                         puts("Can't get entry point property!\n");
 270                         return 1;
 271                 }
 272 #endif
 273         } else {
 274                 puts("Could not find kernel entry point!\n");
 275                 return 1;
 276         }
 277
 278         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 279                 images.os.load = images.os.image_start;
 280                 images.ep += images.os.load;
 281         }
 282
 283         if (((images.os.type == IH_TYPE_KERNEL) ||
 284              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 285              (images.os.type == IH_TYPE_MULTI)) &&
 286             (images.os.os == IH_OS_LINUX)) {
 287                 /* find ramdisk */
 288                 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 289                                 &images.rd_start, &images.rd_end);
 290                 if (ret) {
 291                         puts("Ramdisk image is corrupt or invalid\n");
 292                         return 1;
 293                 }
 294
 295 #if defined(CONFIG_OF_LIBFDT)
 296                 /* find flattened device tree */
 297                 ret = boot_get_fdt(flag, argc, argv, &images,
 298                                    &images.ft_addr, &images.ft_len);
 299                 if (ret) {
 300                         puts("Could not find a valid device tree\n");
 301                         return 1;
 302                 }
 303
 304                 set_working_fdt_addr(images.ft_addr);
 305 #endif
 306         }
 307
 308         images.os.start = (ulong)os_hdr;
 309         images.state = BOOTM_STATE_START;
 310
 311         return 0;
 312 }
 313
 314 #define BOOTM_ERR_RESET         -1
 315 #define BOOTM_ERR_OVERLAP       -2
 316 #define BOOTM_ERR_UNIMPLEMENTED -3
 317 static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
 318 {
 319         uint8_t comp = os.comp;
 320         ulong load = os.load;
 321         ulong blob_start = os.start;
 322         ulong blob_end = os.end;
 323         ulong image_start = os.image_start;
 324         ulong image_len = os.image_len;
 325         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 326         int no_overlap = 0;
 327 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 328         int ret;
 329 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 330
 331         const char *type_name = genimg_get_type_name(os.type);
 332
 333         switch (comp) {
 334         case IH_COMP_NONE:
 335                 if (load == blob_start || load == image_start) {
 336                         printf("   XIP %s ... ", type_name);
 337                         no_overlap = 1;
 338                 } else {
 339                         printf("   Loading %s ... ", type_name);
 340                         memmove_wd((void *)load, (void *)image_start,
 341                                         image_len, CHUNKSZ);
 342                 }
 343                 *load_end = load + image_len;
 344                 puts("OK\n");
 345                 break;
 346 #ifdef CONFIG_GZIP
 347         case IH_COMP_GZIP:
 348                 printf("   Uncompressing %s ... ", type_name);
 349                 if (gunzip((void *)load, unc_len,
 350                                 (uchar *)image_start, &image_len) != 0) {
 351                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 352                                 "error - must RESET board to recover\n");
 353                         if (boot_progress)
 354                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 355                         return BOOTM_ERR_RESET;
 356                 }
 357
 358                 *load_end = load + image_len;
 359                 break;
 360 #endif /* CONFIG_GZIP */
 361 #ifdef CONFIG_BZIP2
 362         case IH_COMP_BZIP2:
 363                 printf("   Uncompressing %s ... ", type_name);
 364                 /*
 365                  * If we've got less than 4 MB of malloc() space,
 366                  * use slower decompression algorithm which requires
 367                  * at most 2300 KB of memory.
 368                  */
 369                 int i = BZ2_bzBuffToBuffDecompress((char *)load,
 370                                         &unc_len, (char *)image_start, image_len,
 371                                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 372                 if (i != BZ_OK) {
 373                         printf("BUNZIP2: uncompress or overwrite error %d "
 374                                 "- must RESET board to recover\n", i);
 375                         if (boot_progress)
 376                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 377                         return BOOTM_ERR_RESET;
 378                 }
 379
 380                 *load_end = load + unc_len;
 381                 break;
 382 #endif /* CONFIG_BZIP2 */
 383 #ifdef CONFIG_LZMA
 384         case IH_COMP_LZMA: {
 385                 SizeT lzma_len = unc_len;
 386                 printf("   Uncompressing %s ... ", type_name);
 387
 388                 ret = lzmaBuffToBuffDecompress(
 389                         (unsigned char *)load, &lzma_len,
 390                         (unsigned char *)image_start, image_len);
 391                 unc_len = lzma_len;
 392                 if (ret != SZ_OK) {
 393                         printf("LZMA: uncompress or overwrite error %d "
 394                                 "- must RESET board to recover\n", ret);
 395                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 396                         return BOOTM_ERR_RESET;
 397                 }
 398                 *load_end = load + unc_len;
 399                 break;
 400         }
 401 #endif /* CONFIG_LZMA */
 402 #ifdef CONFIG_LZO
 403         case IH_COMP_LZO:
 404                 printf("   Uncompressing %s ... ", type_name);
 405
 406                 ret = lzop_decompress((const unsigned char *)image_start,
 407                                           image_len, (unsigned char *)load,
 408                                           &unc_len);
 409                 if (ret != LZO_E_OK) {
 410                         printf("LZO: uncompress or overwrite error %d "
 411                               "- must RESET board to recover\n", ret);
 412                         if (boot_progress)
 413                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 414                         return BOOTM_ERR_RESET;
 415                 }
 416
 417                 *load_end = load + unc_len;
 418                 break;
 419 #endif /* CONFIG_LZO */
 420         default:
 421                 printf("Unimplemented compression type %d\n", comp);
 422                 return BOOTM_ERR_UNIMPLEMENTED;
 423         }
 424
 425         flush_cache(load, (*load_end - load) * sizeof(ulong));
 426
 427         puts("OK\n");
 428         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 429         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 430
 431         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 432                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 433                         blob_start, blob_end);
 434                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 435                         *load_end);
 436
 437                 return BOOTM_ERR_OVERLAP;
 438         }
 439
 440         return 0;
 441 }
 442
 443 static int bootm_start_standalone(ulong iflag, int argc, char * const argv[])
 444 {
 445         char  *s;
 446         int   (*appl)(int, char * const []);
 447
 448         /* Don't start if "autostart" is set to "no" */
 449         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 450                 char buf[32];
 451                 sprintf(buf, "%lX", images.os.image_len);
 452                 setenv("filesize", buf);
 453                 return 0;
 454         }
 455         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
 456         (*appl)(argc-1, &argv[1]);
 457         return 0;
 458 }
 459
 460 /* we overload the cmd field with our state machine info instead of a
 461  * function pointer */
 462 static cmd_tbl_t cmd_bootm_sub[] = {
 463         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 464         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 465 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 466         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 467 #endif
 468 #ifdef CONFIG_OF_LIBFDT
 469         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 470 #endif
 471         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 472         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 473         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 474         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 475 };
 476
 477 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 478                         char * const argv[])
 479 {
 480         int ret = 0;
 481         long state;
 482         cmd_tbl_t *c;
 483         boot_os_fn *boot_fn;
 484
 485         c = find_cmd_tbl(argv[1], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 486
 487         if (c) {
 488                 state = (long)c->cmd;
 489
 490                 /* treat start special since it resets the state machine */
 491                 if (state == BOOTM_STATE_START) {
 492                         argc--;
 493                         argv++;
 494                         return bootm_start(cmdtp, flag, argc, argv);
 495                 }
 496         } else {
 497                 /* Unrecognized command */
 498                 return CMD_RET_USAGE;
 499         }
 500
 501         if (images.state < BOOTM_STATE_START ||
 502             images.state >= state) {
 503                 printf("Trying to execute a command out of order\n");
 504                 return CMD_RET_USAGE;
 505         }
 506
 507         images.state |= state;
 508         boot_fn = boot_os[images.os.os];
 509
 510         switch (state) {
 511                 ulong load_end;
 512                 case BOOTM_STATE_START:
 513                         /* should never occur */
 514                         break;
 515                 case BOOTM_STATE_LOADOS:
 516                         ret = bootm_load_os(images.os, &load_end, 0);
 517                         if (ret)
 518                                 return ret;
 519
 520                         lmb_reserve(&images.lmb, images.os.load,
 521                                         (load_end - images.os.load));
 522                         break;
 523 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 524                 case BOOTM_STATE_RAMDISK:
 525                 {
 526                         ulong rd_len = images.rd_end - images.rd_start;
 527                         char str[17];
 528
 529                         ret = boot_ramdisk_high(&images.lmb, images.rd_start,
 530                                 rd_len, &images.initrd_start, &images.initrd_end);
 531                         if (ret)
 532                                 return ret;
 533
 534                         sprintf(str, "%lx", images.initrd_start);
 535                         setenv("initrd_start", str);
 536                         sprintf(str, "%lx", images.initrd_end);
 537                         setenv("initrd_end", str);
 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_PPC) || defined(CONFIG_M68K) || defined(CONFIG_SPARC)
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(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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
1246         return (0);
1247 }
1248
1249 U_BOOT_CMD(
1250         imls,   1,              1,      do_imls,
1251         "list all images found in flash",
1252         "\n"
1253         "    - Prints information about all images found at sector\n"
1254         "      boundaries in flash."
1255 );
1256 #endif
1257
1258 /*******************************************************************/
1259 /* helper routines */
1260 /*******************************************************************/
1261 #ifdef CONFIG_SILENT_CONSOLE
1262 static void fixup_silent_linux(void)
1263 {
1264         char buf[256], *start, *end;
1265         char *cmdline = getenv("bootargs");
1266
1267         /* Only fix cmdline when requested */
1268         if (!(gd->flags & GD_FLG_SILENT))
1269                 return;
1270
1271         debug("before silent fix-up: %s\n", cmdline);
1272         if (cmdline) {
1273                 start = strstr(cmdline, "console=");
1274                 if (start) {
1275                         end = strchr(start, ' ');
1276                         strncpy(buf, cmdline, (start - cmdline + 8));
1277                         if (end)
1278                                 strcpy(buf + (start - cmdline + 8), end);
1279                         else
1280                                 buf[start - cmdline + 8] = '\0';
1281                 } else {
1282                         strcpy(buf, cmdline);
1283                         strcat(buf, " console=");
1284                 }
1285         } else {
1286                 strcpy(buf, "console=");
1287         }
1288
1289         setenv("bootargs", buf);
1290         debug("after silent fix-up: %s\n", buf);
1291 }
1292 #endif /* CONFIG_SILENT_CONSOLE */
1293
1294
1295 /*******************************************************************/
1296 /* OS booting routines */
1297 /*******************************************************************/
1298
1299 #ifdef CONFIG_BOOTM_NETBSD
1300 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1301                             bootm_headers_t *images)
1302 {
1303         void (*loader)(bd_t *, image_header_t *, char *, char *);
1304         image_header_t *os_hdr, *hdr;
1305         ulong kernel_data, kernel_len;
1306         char *consdev;
1307         char *cmdline;
1308
1309         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1310                 return 1;
1311
1312 #if defined(CONFIG_FIT)
1313         if (!images->legacy_hdr_valid) {
1314                 fit_unsupported_reset("NetBSD");
1315                 return 1;
1316         }
1317 #endif
1318         hdr = images->legacy_hdr_os;
1319
1320         /*
1321          * Booting a (NetBSD) kernel image
1322          *
1323          * This process is pretty similar to a standalone application:
1324          * The (first part of an multi-) image must be a stage-2 loader,
1325          * which in turn is responsible for loading & invoking the actual
1326          * kernel.  The only differences are the parameters being passed:
1327          * besides the board info strucure, the loader expects a command
1328          * line, the name of the console device, and (optionally) the
1329          * address of the original image header.
1330          */
1331         os_hdr = NULL;
1332         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1333                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1334                 if (kernel_len)
1335                         os_hdr = hdr;
1336         }
1337
1338         consdev = "";
1339 #if   defined(CONFIG_8xx_CONS_SMC1)
1340         consdev = "smc1";
1341 #elif defined(CONFIG_8xx_CONS_SMC2)
1342         consdev = "smc2";
1343 #elif defined(CONFIG_8xx_CONS_SCC2)
1344         consdev = "scc2";
1345 #elif defined(CONFIG_8xx_CONS_SCC3)
1346         consdev = "scc3";
1347 #endif
1348
1349         if (argc > 2) {
1350                 ulong len;
1351                 int   i;
1352
1353                 for (i = 2, len = 0; i < argc; i += 1)
1354                         len += strlen(argv[i]) + 1;
1355                 cmdline = malloc(len);
1356
1357                 for (i = 2, len = 0; i < argc; i += 1) {
1358                         if (i > 2)
1359                                 cmdline[len++] = ' ';
1360                         strcpy(&cmdline[len], argv[i]);
1361                         len += strlen(argv[i]);
1362                 }
1363         } else if ((cmdline = getenv("bootargs")) == NULL) {
1364                 cmdline = "";
1365         }
1366
1367         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1368
1369         printf("## Transferring control to NetBSD stage-2 loader "
1370                 "(at address %08lx) ...\n",
1371                 (ulong)loader);
1372
1373         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1374
1375         /*
1376          * NetBSD Stage-2 Loader Parameters:
1377          *   r3: ptr to board info data
1378          *   r4: image address
1379          *   r5: console device
1380          *   r6: boot args string
1381          */
1382         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1383
1384         return 1;
1385 }
1386 #endif /* CONFIG_BOOTM_NETBSD*/
1387
1388 #ifdef CONFIG_LYNXKDI
1389 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1390                              bootm_headers_t *images)
1391 {
1392         image_header_t *hdr = &images->legacy_hdr_os_copy;
1393
1394         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1395                 return 1;
1396
1397 #if defined(CONFIG_FIT)
1398         if (!images->legacy_hdr_valid) {
1399                 fit_unsupported_reset("Lynx");
1400                 return 1;
1401         }
1402 #endif
1403
1404         lynxkdi_boot((image_header_t *)hdr);
1405
1406         return 1;
1407 }
1408 #endif /* CONFIG_LYNXKDI */
1409
1410 #ifdef CONFIG_BOOTM_RTEMS
1411 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1412                            bootm_headers_t *images)
1413 {
1414         void (*entry_point)(bd_t *);
1415
1416         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1417                 return 1;
1418
1419 #if defined(CONFIG_FIT)
1420         if (!images->legacy_hdr_valid) {
1421                 fit_unsupported_reset("RTEMS");
1422                 return 1;
1423         }
1424 #endif
1425
1426         entry_point = (void (*)(bd_t *))images->ep;
1427
1428         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1429                 (ulong)entry_point);
1430
1431         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1432
1433         /*
1434          * RTEMS Parameters:
1435          *   r3: ptr to board info data
1436          */
1437         (*entry_point)(gd->bd);
1438
1439         return 1;
1440 }
1441 #endif /* CONFIG_BOOTM_RTEMS */
1442
1443 #if defined(CONFIG_BOOTM_OSE)
1444 static int do_bootm_ose(int flag, int argc, char * const argv[],
1445                            bootm_headers_t *images)
1446 {
1447         void (*entry_point)(void);
1448
1449         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1450                 return 1;
1451
1452 #if defined(CONFIG_FIT)
1453         if (!images->legacy_hdr_valid) {
1454                 fit_unsupported_reset("OSE");
1455                 return 1;
1456         }
1457 #endif
1458
1459         entry_point = (void (*)(void))images->ep;
1460
1461         printf("## Transferring control to OSE (at address %08lx) ...\n",
1462                 (ulong)entry_point);
1463
1464         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1465
1466         /*
1467          * OSE Parameters:
1468          *   None
1469          */
1470         (*entry_point)();
1471
1472         return 1;
1473 }
1474 #endif /* CONFIG_BOOTM_OSE */
1475
1476 #if defined(CONFIG_CMD_ELF)
1477 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1478                              bootm_headers_t *images)
1479 {
1480         char str[80];
1481
1482         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1483                 return 1;
1484
1485 #if defined(CONFIG_FIT)
1486         if (!images->legacy_hdr_valid) {
1487                 fit_unsupported_reset("VxWorks");
1488                 return 1;
1489         }
1490 #endif
1491
1492         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1493         setenv("loadaddr", str);
1494         do_bootvx(NULL, 0, 0, NULL);
1495
1496         return 1;
1497 }
1498
1499 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1500                             bootm_headers_t *images)
1501 {
1502         char *local_args[2];
1503         char str[16];
1504
1505         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1506                 return 1;
1507
1508 #if defined(CONFIG_FIT)
1509         if (!images->legacy_hdr_valid) {
1510                 fit_unsupported_reset("QNX");
1511                 return 1;
1512         }
1513 #endif
1514
1515         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1516         local_args[0] = argv[0];
1517         local_args[1] = str;    /* and provide it via the arguments */
1518         do_bootelf(NULL, 0, 2, local_args);
1519
1520         return 1;
1521 }
1522 #endif
1523
1524 #ifdef CONFIG_INTEGRITY
1525 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1526                            bootm_headers_t *images)
1527 {
1528         void (*entry_point)(void);
1529
1530         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1531                 return 1;
1532
1533 #if defined(CONFIG_FIT)
1534         if (!images->legacy_hdr_valid) {
1535                 fit_unsupported_reset("INTEGRITY");
1536                 return 1;
1537         }
1538 #endif
1539
1540         entry_point = (void (*)(void))images->ep;
1541
1542         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1543                 (ulong)entry_point);
1544
1545         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1546
1547         /*
1548          * INTEGRITY Parameters:
1549          *   None
1550          */
1551         (*entry_point)();
1552
1553         return 1;
1554 }
1555 #endif
1556
1557 #ifdef CONFIG_CMD_BOOTZ
1558
1559 static int __bootz_setup(void *image, void **start, void **end)
1560 {
1561         /* Please define bootz_setup() for your platform */
1562
1563         puts("Your platform's zImage format isn't supported yet!\n");
1564         return -1;
1565 }
1566 int bootz_setup(void *image, void **start, void **end)
1567         __attribute__((weak, alias("__bootz_setup")));
1568
1569 /*
1570  * zImage booting support
1571  */
1572 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1573                         char * const argv[], bootm_headers_t *images)
1574 {
1575         int ret;
1576         void *zi_start, *zi_end;
1577
1578         memset(images, 0, sizeof(bootm_headers_t));
1579
1580         boot_start_lmb(images);
1581
1582         /* Setup Linux kernel zImage entry point */
1583         if (argc < 2) {
1584                 images->ep = load_addr;
1585                 debug("*  kernel: default image load address = 0x%08lx\n",
1586                                 load_addr);
1587         } else {
1588                 images->ep = simple_strtoul(argv[1], NULL, 16);
1589                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1590                         images->ep);
1591         }
1592
1593         ret = bootz_setup((void *)images->ep, &zi_start, &zi_end);
1594         if (ret != 0)
1595                 return 1;
1596
1597         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1598
1599         /* Find ramdisk */
1600         ret = boot_get_ramdisk(argc, argv, images, IH_INITRD_ARCH,
1601                         &images->rd_start, &images->rd_end);
1602         if (ret) {
1603                 puts("Ramdisk image is corrupt or invalid\n");
1604                 return 1;
1605         }
1606
1607 #if defined(CONFIG_OF_LIBFDT)
1608         /* find flattened device tree */
1609         ret = boot_get_fdt(flag, argc, argv, images,
1610                            &images->ft_addr, &images->ft_len);
1611         if (ret) {
1612                 puts("Could not find a valid device tree\n");
1613                 return 1;
1614         }
1615
1616         set_working_fdt_addr(images->ft_addr);
1617 #endif
1618
1619         return 0;
1620 }
1621
1622 static int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1623 {
1624         bootm_headers_t images;
1625
1626         if (bootz_start(cmdtp, flag, argc, argv, &images))
1627                 return 1;
1628
1629         /*
1630          * We have reached the point of no return: we are going to
1631          * overwrite all exception vector code, so we cannot easily
1632          * recover from any failures any more...
1633          */
1634         disable_interrupts();
1635
1636 #ifdef CONFIG_NETCONSOLE
1637         /* Stop the ethernet stack if NetConsole could have left it up */
1638         eth_halt();
1639 #endif
1640
1641 #if defined(CONFIG_CMD_USB)
1642         /*
1643          * turn off USB to prevent the host controller from writing to the
1644          * SDRAM while Linux is booting. This could happen (at least for OHCI
1645          * controller), because the HCCA (Host Controller Communication Area)
1646          * lies within the SDRAM and the host controller writes continously to
1647          * this area (as busmaster!). The HccaFrameNumber is for example
1648          * updated every 1 ms within the HCCA structure in SDRAM! For more
1649          * details see the OpenHCI specification.
1650          */
1651         usb_stop();
1652 #endif
1653
1654 #ifdef CONFIG_SILENT_CONSOLE
1655         fixup_silent_linux();
1656 #endif
1657         arch_preboot_os();
1658
1659         do_bootm_linux(0, argc, argv, &images);
1660 #ifdef DEBUG
1661         puts("\n## Control returned to monitor - resetting...\n");
1662 #endif
1663         do_reset(cmdtp, flag, argc, argv);
1664
1665         return 1;
1666 }
1667
1668 #ifdef CONFIG_SYS_LONGHELP
1669 static char bootz_help_text[] =
1670         "[addr [initrd[:size]] [fdt]]\n"
1671         "    - boot Linux zImage stored in memory\n"
1672         "\tThe argument 'initrd' is optional and specifies the address\n"
1673         "\tof the initrd in memory. The optional argument ':size' allows\n"
1674         "\tspecifying the size of RAW initrd.\n"
1675 #if defined(CONFIG_OF_LIBFDT)
1676         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1677         "\ta third argument is required which is the address of the\n"
1678         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1679         "\tuse a '-' for the second argument. If you do not pass a third\n"
1680         "\ta bd_info struct will be passed instead\n"
1681 #endif
1682         "";
1683 #endif
1684
1685 U_BOOT_CMD(
1686         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1687         "boot Linux zImage image from memory", bootz_help_text
1688 );
1689 #endif  /* CONFIG_CMD_BOOTZ */