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 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 static void bootm_start_lmb(void)
 173 {
 174 #ifdef CONFIG_LMB
 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 #else
 188 # define lmb_reserve(lmb, base, size)
 189 #endif
 190 }
 191
 192 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 193 {
 194         void            *os_hdr;
 195         int             ret;
 196
 197         memset((void *)&images, 0, sizeof(images));
 198         images.verify = getenv_yesno("verify");
 199
 200         bootm_start_lmb();
 201
 202         /* get kernel image header, start address and length */
 203         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
 204                         &images, &images.os.image_start, &images.os.image_len);
 205         if (images.os.image_len == 0) {
 206                 puts("ERROR: can't get kernel image!\n");
 207                 return 1;
 208         }
 209
 210         /* get image parameters */
 211         switch (genimg_get_format(os_hdr)) {
 212         case IMAGE_FORMAT_LEGACY:
 213                 images.os.type = image_get_type(os_hdr);
 214                 images.os.comp = image_get_comp(os_hdr);
 215                 images.os.os = image_get_os(os_hdr);
 216
 217                 images.os.end = image_get_image_end(os_hdr);
 218                 images.os.load = image_get_load(os_hdr);
 219                 break;
 220 #if defined(CONFIG_FIT)
 221         case IMAGE_FORMAT_FIT:
 222                 if (fit_image_get_type(images.fit_hdr_os,
 223                                         images.fit_noffset_os, &images.os.type)) {
 224                         puts("Can't get image type!\n");
 225                         show_boot_progress(-109);
 226                         return 1;
 227                 }
 228
 229                 if (fit_image_get_comp(images.fit_hdr_os,
 230                                         images.fit_noffset_os, &images.os.comp)) {
 231                         puts("Can't get image compression!\n");
 232                         show_boot_progress(-110);
 233                         return 1;
 234                 }
 235
 236                 if (fit_image_get_os(images.fit_hdr_os,
 237                                         images.fit_noffset_os, &images.os.os)) {
 238                         puts("Can't get image OS!\n");
 239                         show_boot_progress(-111);
 240                         return 1;
 241                 }
 242
 243                 images.os.end = fit_get_end(images.fit_hdr_os);
 244
 245                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 246                                         &images.os.load)) {
 247                         puts("Can't get image load address!\n");
 248                         show_boot_progress(-112);
 249                         return 1;
 250                 }
 251                 break;
 252 #endif
 253         default:
 254                 puts("ERROR: unknown image format type!\n");
 255                 return 1;
 256         }
 257
 258         /* find kernel entry point */
 259         if (images.legacy_hdr_valid) {
 260                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 261 #if defined(CONFIG_FIT)
 262         } else if (images.fit_uname_os) {
 263                 ret = fit_image_get_entry(images.fit_hdr_os,
 264                                 images.fit_noffset_os, &images.ep);
 265                 if (ret) {
 266                         puts("Can't get entry point property!\n");
 267                         return 1;
 268                 }
 269 #endif
 270         } else {
 271                 puts("Could not find kernel entry point!\n");
 272                 return 1;
 273         }
 274
 275         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 276                 images.os.load = images.os.image_start;
 277                 images.ep += images.os.load;
 278         }
 279
 280         if (((images.os.type == IH_TYPE_KERNEL) ||
 281              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 282              (images.os.type == IH_TYPE_MULTI)) &&
 283             (images.os.os == IH_OS_LINUX)) {
 284                 /* find ramdisk */
 285                 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 286                                 &images.rd_start, &images.rd_end);
 287                 if (ret) {
 288                         puts("Ramdisk image is corrupt or invalid\n");
 289                         return 1;
 290                 }
 291
 292 #if defined(CONFIG_OF_LIBFDT)
 293                 /* find flattened device tree */
 294                 ret = boot_get_fdt(flag, argc, argv, &images,
 295                                    &images.ft_addr, &images.ft_len);
 296                 if (ret) {
 297                         puts("Could not find a valid device tree\n");
 298                         return 1;
 299                 }
 300
 301                 set_working_fdt_addr(images.ft_addr);
 302 #endif
 303         }
 304
 305         images.os.start = (ulong)os_hdr;
 306         images.state = BOOTM_STATE_START;
 307
 308         return 0;
 309 }
 310
 311 #define BOOTM_ERR_RESET         -1
 312 #define BOOTM_ERR_OVERLAP       -2
 313 #define BOOTM_ERR_UNIMPLEMENTED -3
 314 static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
 315 {
 316         uint8_t comp = os.comp;
 317         ulong load = os.load;
 318         ulong blob_start = os.start;
 319         ulong blob_end = os.end;
 320         ulong image_start = os.image_start;
 321         ulong image_len = os.image_len;
 322         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 323         int no_overlap = 0;
 324 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 325         int ret;
 326 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 327
 328         const char *type_name = genimg_get_type_name(os.type);
 329
 330         switch (comp) {
 331         case IH_COMP_NONE:
 332                 if (load == blob_start || load == image_start) {
 333                         printf("   XIP %s ... ", type_name);
 334                         no_overlap = 1;
 335                 } else {
 336                         printf("   Loading %s ... ", type_name);
 337                         memmove_wd((void *)load, (void *)image_start,
 338                                         image_len, CHUNKSZ);
 339                 }
 340                 *load_end = load + image_len;
 341                 puts("OK\n");
 342                 break;
 343 #ifdef CONFIG_GZIP
 344         case IH_COMP_GZIP:
 345                 printf("   Uncompressing %s ... ", type_name);
 346                 if (gunzip((void *)load, unc_len,
 347                                 (uchar *)image_start, &image_len) != 0) {
 348                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 349                                 "error - must RESET board to recover\n");
 350                         if (boot_progress)
 351                                 show_boot_progress(-6);
 352                         return BOOTM_ERR_RESET;
 353                 }
 354
 355                 *load_end = load + image_len;
 356                 break;
 357 #endif /* CONFIG_GZIP */
 358 #ifdef CONFIG_BZIP2
 359         case IH_COMP_BZIP2:
 360                 printf("   Uncompressing %s ... ", type_name);
 361                 /*
 362                  * If we've got less than 4 MB of malloc() space,
 363                  * use slower decompression algorithm which requires
 364                  * at most 2300 KB of memory.
 365                  */
 366                 int i = BZ2_bzBuffToBuffDecompress((char *)load,
 367                                         &unc_len, (char *)image_start, image_len,
 368                                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 369                 if (i != BZ_OK) {
 370                         printf("BUNZIP2: uncompress or overwrite error %d "
 371                                 "- must RESET board to recover\n", i);
 372                         if (boot_progress)
 373                                 show_boot_progress(-6);
 374                         return BOOTM_ERR_RESET;
 375                 }
 376
 377                 *load_end = load + unc_len;
 378                 break;
 379 #endif /* CONFIG_BZIP2 */
 380 #ifdef CONFIG_LZMA
 381         case IH_COMP_LZMA: {
 382                 SizeT lzma_len = unc_len;
 383                 printf("   Uncompressing %s ... ", type_name);
 384
 385                 ret = lzmaBuffToBuffDecompress(
 386                         (unsigned char *)load, &lzma_len,
 387                         (unsigned char *)image_start, image_len);
 388                 unc_len = lzma_len;
 389                 if (ret != SZ_OK) {
 390                         printf("LZMA: uncompress or overwrite error %d "
 391                                 "- must RESET board to recover\n", ret);
 392                         show_boot_progress(-6);
 393                         return BOOTM_ERR_RESET;
 394                 }
 395                 *load_end = load + unc_len;
 396                 break;
 397         }
 398 #endif /* CONFIG_LZMA */
 399 #ifdef CONFIG_LZO
 400         case IH_COMP_LZO:
 401                 printf("   Uncompressing %s ... ", type_name);
 402
 403                 ret = lzop_decompress((const unsigned char *)image_start,
 404                                           image_len, (unsigned char *)load,
 405                                           &unc_len);
 406                 if (ret != LZO_E_OK) {
 407                         printf("LZO: uncompress or overwrite error %d "
 408                               "- must RESET board to recover\n", ret);
 409                         if (boot_progress)
 410                                 show_boot_progress(-6);
 411                         return BOOTM_ERR_RESET;
 412                 }
 413
 414                 *load_end = load + unc_len;
 415                 break;
 416 #endif /* CONFIG_LZO */
 417         default:
 418                 printf("Unimplemented compression type %d\n", comp);
 419                 return BOOTM_ERR_UNIMPLEMENTED;
 420         }
 421
 422         flush_cache(load, (*load_end - load) * sizeof(ulong));
 423
 424         puts("OK\n");
 425         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 426         if (boot_progress)
 427                 show_boot_progress(7);
 428
 429         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 430                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 431                         blob_start, blob_end);
 432                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 433                         *load_end);
 434
 435                 return BOOTM_ERR_OVERLAP;
 436         }
 437
 438         return 0;
 439 }
 440
 441 static int bootm_start_standalone(ulong iflag, int argc, char * const argv[])
 442 {
 443         char  *s;
 444         int   (*appl)(int, char * const []);
 445
 446         /* Don't start if "autostart" is set to "no" */
 447         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 448                 char buf[32];
 449                 sprintf(buf, "%lX", images.os.image_len);
 450                 setenv("filesize", buf);
 451                 return 0;
 452         }
 453         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
 454         (*appl)(argc-1, &argv[1]);
 455         return 0;
 456 }
 457
 458 /* we overload the cmd field with our state machine info instead of a
 459  * function pointer */
 460 static cmd_tbl_t cmd_bootm_sub[] = {
 461         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 462         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 463 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 464         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 465 #endif
 466 #ifdef CONFIG_OF_LIBFDT
 467         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 468 #endif
 469         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 470         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 471         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 472         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 473 };
 474
 475 int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 476                         char * const argv[])
 477 {
 478         int ret = 0;
 479         long state;
 480         cmd_tbl_t *c;
 481         boot_os_fn *boot_fn;
 482
 483         c = find_cmd_tbl(argv[1], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 484
 485         if (c) {
 486                 state = (long)c->cmd;
 487
 488                 /* treat start special since it resets the state machine */
 489                 if (state == BOOTM_STATE_START) {
 490                         argc--;
 491                         argv++;
 492                         return bootm_start(cmdtp, flag, argc, argv);
 493                 }
 494         } else {
 495                 /* Unrecognized command */
 496                 return cmd_usage(cmdtp);
 497         }
 498
 499         if (images.state >= state) {
 500                 printf("Trying to execute a command out of order\n");
 501                 return cmd_usage(cmdtp);
 502         }
 503
 504         images.state |= state;
 505         boot_fn = boot_os[images.os.os];
 506
 507         switch (state) {
 508                 ulong load_end;
 509                 case BOOTM_STATE_START:
 510                         /* should never occur */
 511                         break;
 512                 case BOOTM_STATE_LOADOS:
 513                         ret = bootm_load_os(images.os, &load_end, 0);
 514                         if (ret)
 515                                 return ret;
 516
 517                         lmb_reserve(&images.lmb, images.os.load,
 518                                         (load_end - images.os.load));
 519                         break;
 520 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 521                 case BOOTM_STATE_RAMDISK:
 522                 {
 523                         ulong rd_len = images.rd_end - images.rd_start;
 524                         char str[17];
 525
 526                         ret = boot_ramdisk_high(&images.lmb, images.rd_start,
 527                                 rd_len, &images.initrd_start, &images.initrd_end);
 528                         if (ret)
 529                                 return ret;
 530
 531                         sprintf(str, "%lx", images.initrd_start);
 532                         setenv("initrd_start", str);
 533                         sprintf(str, "%lx", images.initrd_end);
 534                         setenv("initrd_end", str);
 535                 }
 536                         break;
 537 #endif
 538 #if defined(CONFIG_OF_LIBFDT)
 539                 case BOOTM_STATE_FDT:
 540                 {
 541                         boot_fdt_add_mem_rsv_regions(&images.lmb,
 542                                                      images.ft_addr);
 543                         ret = boot_relocate_fdt(&images.lmb,
 544                                 &images.ft_addr, &images.ft_len);
 545                         break;
 546                 }
 547 #endif
 548                 case BOOTM_STATE_OS_CMDLINE:
 549                         ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, &images);
 550                         if (ret)
 551                                 printf("cmdline subcommand not supported\n");
 552                         break;
 553                 case BOOTM_STATE_OS_BD_T:
 554                         ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, &images);
 555                         if (ret)
 556                                 printf("bdt subcommand not supported\n");
 557                         break;
 558                 case BOOTM_STATE_OS_PREP:
 559                         ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, &images);
 560                         if (ret)
 561                                 printf("prep subcommand not supported\n");
 562                         break;
 563                 case BOOTM_STATE_OS_GO:
 564                         disable_interrupts();
 565                         arch_preboot_os();
 566                         boot_fn(BOOTM_STATE_OS_GO, argc, argv, &images);
 567                         break;
 568         }
 569
 570         return ret;
 571 }
 572
 573 /*******************************************************************/
 574 /* bootm - boot application image from image in memory */
 575 /*******************************************************************/
 576
 577 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 578 {
 579         ulong           iflag;
 580         ulong           load_end = 0;
 581         int             ret;
 582         boot_os_fn      *boot_fn;
 583 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 584         static int relocated = 0;
 585
 586         /* relocate boot function table */
 587         if (!relocated) {
 588                 int i;
 589                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
 590                         if (boot_os[i] != NULL)
 591                                 boot_os[i] += gd->reloc_off;
 592                 relocated = 1;
 593         }
 594 #endif
 595
 596         /* determine if we have a sub command */
 597         if (argc > 1) {
 598                 char *endp;
 599
 600                 simple_strtoul(argv[1], &endp, 16);
 601                 /* endp pointing to NULL means that argv[1] was just a
 602                  * valid number, pass it along to the normal bootm processing
 603                  *
 604                  * If endp is ':' or '#' assume a FIT identifier so pass
 605                  * along for normal processing.
 606                  *
 607                  * Right now we assume the first arg should never be '-'
 608                  */
 609                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 610                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 611         }
 612
 613         if (bootm_start(cmdtp, flag, argc, argv))
 614                 return 1;
 615
 616         /*
 617          * We have reached the point of no return: we are going to
 618          * overwrite all exception vector code, so we cannot easily
 619          * recover from any failures any more...
 620          */
 621         iflag = disable_interrupts();
 622
 623 #if defined(CONFIG_CMD_USB)
 624         /*
 625          * turn off USB to prevent the host controller from writing to the
 626          * SDRAM while Linux is booting. This could happen (at least for OHCI
 627          * controller), because the HCCA (Host Controller Communication Area)
 628          * lies within the SDRAM and the host controller writes continously to
 629          * this area (as busmaster!). The HccaFrameNumber is for example
 630          * updated every 1 ms within the HCCA structure in SDRAM! For more
 631          * details see the OpenHCI specification.
 632          */
 633         usb_stop();
 634 #endif
 635
 636         ret = bootm_load_os(images.os, &load_end, 1);
 637
 638         if (ret < 0) {
 639                 if (ret == BOOTM_ERR_RESET)
 640                         do_reset(cmdtp, flag, argc, argv);
 641                 if (ret == BOOTM_ERR_OVERLAP) {
 642                         if (images.legacy_hdr_valid) {
 643                                 image_header_t *hdr;
 644                                 hdr = &images.legacy_hdr_os_copy;
 645                                 if (image_get_type(hdr) == IH_TYPE_MULTI)
 646                                         puts("WARNING: legacy format multi "
 647                                                 "component image "
 648                                                 "overwritten\n");
 649                         } else {
 650                                 puts("ERROR: new format image overwritten - "
 651                                         "must RESET the board to recover\n");
 652                                 show_boot_progress(-113);
 653                                 do_reset(cmdtp, flag, argc, argv);
 654                         }
 655                 }
 656                 if (ret == BOOTM_ERR_UNIMPLEMENTED) {
 657                         if (iflag)
 658                                 enable_interrupts();
 659                         show_boot_progress(-7);
 660                         return 1;
 661                 }
 662         }
 663
 664         lmb_reserve(&images.lmb, images.os.load, (load_end - images.os.load));
 665
 666         if (images.os.type == IH_TYPE_STANDALONE) {
 667                 if (iflag)
 668                         enable_interrupts();
 669                 /* This may return when 'autostart' is 'no' */
 670                 bootm_start_standalone(iflag, argc, argv);
 671                 return 0;
 672         }
 673
 674         show_boot_progress(8);
 675
 676 #ifdef CONFIG_SILENT_CONSOLE
 677         if (images.os.os == IH_OS_LINUX)
 678                 fixup_silent_linux();
 679 #endif
 680
 681         boot_fn = boot_os[images.os.os];
 682
 683         if (boot_fn == NULL) {
 684                 if (iflag)
 685                         enable_interrupts();
 686                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 687                         genimg_get_os_name(images.os.os), images.os.os);
 688                 show_boot_progress(-8);
 689                 return 1;
 690         }
 691
 692         arch_preboot_os();
 693
 694         boot_fn(0, argc, argv, &images);
 695
 696         show_boot_progress(-9);
 697 #ifdef DEBUG
 698         puts("\n## Control returned to monitor - resetting...\n");
 699 #endif
 700         do_reset(cmdtp, flag, argc, argv);
 701
 702         return 1;
 703 }
 704
 705 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
 706 {
 707         const char *ep = getenv("autostart");
 708
 709         if (ep && !strcmp(ep, "yes")) {
 710                 char *local_args[2];
 711                 local_args[0] = (char *)cmd;
 712                 local_args[1] = NULL;
 713                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
 714                 return do_bootm(cmdtp, 0, 1, local_args);
 715         }
 716
 717         return 0;
 718 }
 719
 720 /**
 721  * image_get_kernel - verify legacy format kernel image
 722  * @img_addr: in RAM address of the legacy format image to be verified
 723  * @verify: data CRC verification flag
 724  *
 725  * image_get_kernel() verifies legacy image integrity and returns pointer to
 726  * legacy image header if image verification was completed successfully.
 727  *
 728  * returns:
 729  *     pointer to a legacy image header if valid image was found
 730  *     otherwise return NULL
 731  */
 732 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 733 {
 734         image_header_t *hdr = (image_header_t *)img_addr;
 735
 736         if (!image_check_magic(hdr)) {
 737                 puts("Bad Magic Number\n");
 738                 show_boot_progress(-1);
 739                 return NULL;
 740         }
 741         show_boot_progress(2);
 742
 743         if (!image_check_hcrc(hdr)) {
 744                 puts("Bad Header Checksum\n");
 745                 show_boot_progress(-2);
 746                 return NULL;
 747         }
 748
 749         show_boot_progress(3);
 750         image_print_contents(hdr);
 751
 752         if (verify) {
 753                 puts("   Verifying Checksum ... ");
 754                 if (!image_check_dcrc(hdr)) {
 755                         printf("Bad Data CRC\n");
 756                         show_boot_progress(-3);
 757                         return NULL;
 758                 }
 759                 puts("OK\n");
 760         }
 761         show_boot_progress(4);
 762
 763         if (!image_check_target_arch(hdr)) {
 764                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 765                 show_boot_progress(-4);
 766                 return NULL;
 767         }
 768         return hdr;
 769 }
 770
 771 /**
 772  * fit_check_kernel - verify FIT format kernel subimage
 773  * @fit_hdr: pointer to the FIT image header
 774  * os_noffset: kernel subimage node offset within FIT image
 775  * @verify: data CRC verification flag
 776  *
 777  * fit_check_kernel() verifies integrity of the kernel subimage and from
 778  * specified FIT image.
 779  *
 780  * returns:
 781  *     1, on success
 782  *     0, on failure
 783  */
 784 #if defined(CONFIG_FIT)
 785 static int fit_check_kernel(const void *fit, int os_noffset, int verify)
 786 {
 787         fit_image_print(fit, os_noffset, "   ");
 788
 789         if (verify) {
 790                 puts("   Verifying Hash Integrity ... ");
 791                 if (!fit_image_check_hashes(fit, os_noffset)) {
 792                         puts("Bad Data Hash\n");
 793                         show_boot_progress(-104);
 794                         return 0;
 795                 }
 796                 puts("OK\n");
 797         }
 798         show_boot_progress(105);
 799
 800         if (!fit_image_check_target_arch(fit, os_noffset)) {
 801                 puts("Unsupported Architecture\n");
 802                 show_boot_progress(-105);
 803                 return 0;
 804         }
 805
 806         show_boot_progress(106);
 807         if (!fit_image_check_type(fit, os_noffset, IH_TYPE_KERNEL) &&
 808             !fit_image_check_type(fit, os_noffset, IH_TYPE_KERNEL_NOLOAD)) {
 809                 puts("Not a kernel image\n");
 810                 show_boot_progress(-106);
 811                 return 0;
 812         }
 813
 814         show_boot_progress(107);
 815         return 1;
 816 }
 817 #endif /* CONFIG_FIT */
 818
 819 /**
 820  * boot_get_kernel - find kernel image
 821  * @os_data: pointer to a ulong variable, will hold os data start address
 822  * @os_len: pointer to a ulong variable, will hold os data length
 823  *
 824  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 825  * and locates kernel data.
 826  *
 827  * returns:
 828  *     pointer to image header if valid image was found, plus kernel start
 829  *     address and length, otherwise NULL
 830  */
 831 static void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 832                 char * const argv[], bootm_headers_t *images, ulong *os_data,
 833                 ulong *os_len)
 834 {
 835         image_header_t  *hdr;
 836         ulong           img_addr;
 837 #if defined(CONFIG_FIT)
 838         void            *fit_hdr;
 839         const char      *fit_uname_config = NULL;
 840         const char      *fit_uname_kernel = NULL;
 841         const void      *data;
 842         size_t          len;
 843         int             cfg_noffset;
 844         int             os_noffset;
 845 #endif
 846
 847         /* find out kernel image address */
 848         if (argc < 2) {
 849                 img_addr = load_addr;
 850                 debug("*  kernel: default image load address = 0x%08lx\n",
 851                                 load_addr);
 852 #if defined(CONFIG_FIT)
 853         } else if (fit_parse_conf(argv[1], load_addr, &img_addr,
 854                                                         &fit_uname_config)) {
 855                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
 856                                 fit_uname_config, img_addr);
 857         } else if (fit_parse_subimage(argv[1], load_addr, &img_addr,
 858                                                         &fit_uname_kernel)) {
 859                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
 860                                 fit_uname_kernel, img_addr);
 861 #endif
 862         } else {
 863                 img_addr = simple_strtoul(argv[1], NULL, 16);
 864                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 865         }
 866
 867         show_boot_progress(1);
 868
 869         /* copy from dataflash if needed */
 870         img_addr = genimg_get_image(img_addr);
 871
 872         /* check image type, for FIT images get FIT kernel node */
 873         *os_data = *os_len = 0;
 874         switch (genimg_get_format((void *)img_addr)) {
 875         case IMAGE_FORMAT_LEGACY:
 876                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 877                                 img_addr);
 878                 hdr = image_get_kernel(img_addr, images->verify);
 879                 if (!hdr)
 880                         return NULL;
 881                 show_boot_progress(5);
 882
 883                 /* get os_data and os_len */
 884                 switch (image_get_type(hdr)) {
 885                 case IH_TYPE_KERNEL:
 886                 case IH_TYPE_KERNEL_NOLOAD:
 887                         *os_data = image_get_data(hdr);
 888                         *os_len = image_get_data_size(hdr);
 889                         break;
 890                 case IH_TYPE_MULTI:
 891                         image_multi_getimg(hdr, 0, os_data, os_len);
 892                         break;
 893                 case IH_TYPE_STANDALONE:
 894                         *os_data = image_get_data(hdr);
 895                         *os_len = image_get_data_size(hdr);
 896                         break;
 897                 default:
 898                         printf("Wrong Image Type for %s command\n",
 899                                 cmdtp->name);
 900                         show_boot_progress(-5);
 901                         return NULL;
 902                 }
 903
 904                 /*
 905                  * copy image header to allow for image overwrites during
 906                  * kernel decompression.
 907                  */
 908                 memmove(&images->legacy_hdr_os_copy, hdr,
 909                         sizeof(image_header_t));
 910
 911                 /* save pointer to image header */
 912                 images->legacy_hdr_os = hdr;
 913
 914                 images->legacy_hdr_valid = 1;
 915                 show_boot_progress(6);
 916                 break;
 917 #if defined(CONFIG_FIT)
 918         case IMAGE_FORMAT_FIT:
 919                 fit_hdr = (void *)img_addr;
 920                 printf("## Booting kernel from FIT Image at %08lx ...\n",
 921                                 img_addr);
 922
 923                 if (!fit_check_format(fit_hdr)) {
 924                         puts("Bad FIT kernel image format!\n");
 925                         show_boot_progress(-100);
 926                         return NULL;
 927                 }
 928                 show_boot_progress(100);
 929
 930                 if (!fit_uname_kernel) {
 931                         /*
 932                          * no kernel image node unit name, try to get config
 933                          * node first. If config unit node name is NULL
 934                          * fit_conf_get_node() will try to find default config
 935                          * node
 936                          */
 937                         show_boot_progress(101);
 938                         cfg_noffset = fit_conf_get_node(fit_hdr,
 939                                                         fit_uname_config);
 940                         if (cfg_noffset < 0) {
 941                                 show_boot_progress(-101);
 942                                 return NULL;
 943                         }
 944                         /* save configuration uname provided in the first
 945                          * bootm argument
 946                          */
 947                         images->fit_uname_cfg = fdt_get_name(fit_hdr,
 948                                                                 cfg_noffset,
 949                                                                 NULL);
 950                         printf("   Using '%s' configuration\n",
 951                                 images->fit_uname_cfg);
 952                         show_boot_progress(103);
 953
 954                         os_noffset = fit_conf_get_kernel_node(fit_hdr,
 955                                                                 cfg_noffset);
 956                         fit_uname_kernel = fit_get_name(fit_hdr, os_noffset,
 957                                                         NULL);
 958                 } else {
 959                         /* get kernel component image node offset */
 960                         show_boot_progress(102);
 961                         os_noffset = fit_image_get_node(fit_hdr,
 962                                                         fit_uname_kernel);
 963                 }
 964                 if (os_noffset < 0) {
 965                         show_boot_progress(-103);
 966                         return NULL;
 967                 }
 968
 969                 printf("   Trying '%s' kernel subimage\n", fit_uname_kernel);
 970
 971                 show_boot_progress(104);
 972                 if (!fit_check_kernel(fit_hdr, os_noffset, images->verify))
 973                         return NULL;
 974
 975                 /* get kernel image data address and length */
 976                 if (fit_image_get_data(fit_hdr, os_noffset, &data, &len)) {
 977                         puts("Could not find kernel subimage data!\n");
 978                         show_boot_progress(-107);
 979                         return NULL;
 980                 }
 981                 show_boot_progress(108);
 982
 983                 *os_len = len;
 984                 *os_data = (ulong)data;
 985                 images->fit_hdr_os = fit_hdr;
 986                 images->fit_uname_os = fit_uname_kernel;
 987                 images->fit_noffset_os = os_noffset;
 988                 break;
 989 #endif
 990         default:
 991                 printf("Wrong Image Format for %s command\n", cmdtp->name);
 992                 show_boot_progress(-108);
 993                 return NULL;
 994         }
 995
 996         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
 997                         *os_data, *os_len, *os_len);
 998
 999         return (void *)img_addr;
1000 }
1001
1002 U_BOOT_CMD(
1003         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1004         "boot application image from memory",
1005         "[addr [arg ...]]\n    - boot application image stored in memory\n"
1006         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
1007         "\t'arg' can be the address of an initrd image\n"
1008 #if defined(CONFIG_OF_LIBFDT)
1009         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1010         "\ta third argument is required which is the address of the\n"
1011         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1012         "\tuse a '-' for the second argument. If you do not pass a third\n"
1013         "\ta bd_info struct will be passed instead\n"
1014 #endif
1015 #if defined(CONFIG_FIT)
1016         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1017         "\tmust be extened to include component or configuration unit name:\n"
1018         "\taddr:<subimg_uname> - direct component image specification\n"
1019         "\taddr#<conf_uname>   - configuration specification\n"
1020         "\tUse iminfo command to get the list of existing component\n"
1021         "\timages and configurations.\n"
1022 #endif
1023         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1024         "must be\n"
1025         "issued in the order below (it's ok to not issue all sub-commands):\n"
1026         "\tstart [addr [arg ...]]\n"
1027         "\tloados  - load OS image\n"
1028 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_SPARC)
1029         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1030 #endif
1031 #if defined(CONFIG_OF_LIBFDT)
1032         "\tfdt     - relocate flat device tree\n"
1033 #endif
1034         "\tcmdline - OS specific command line processing/setup\n"
1035         "\tbdt     - OS specific bd_t processing\n"
1036         "\tprep    - OS specific prep before relocation or go\n"
1037         "\tgo      - start OS"
1038 );
1039
1040 /*******************************************************************/
1041 /* bootd - boot default image */
1042 /*******************************************************************/
1043 #if defined(CONFIG_CMD_BOOTD)
1044 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1045 {
1046         int rcode = 0;
1047
1048 #ifndef CONFIG_SYS_HUSH_PARSER
1049         if (run_command(getenv("bootcmd"), flag) < 0)
1050                 rcode = 1;
1051 #else
1052         if (parse_string_outer(getenv("bootcmd"),
1053                         FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0)
1054                 rcode = 1;
1055 #endif
1056         return rcode;
1057 }
1058
1059 U_BOOT_CMD(
1060         boot,   1,      1,      do_bootd,
1061         "boot default, i.e., run 'bootcmd'",
1062         ""
1063 );
1064
1065 /* keep old command name "bootd" for backward compatibility */
1066 U_BOOT_CMD(
1067         bootd, 1,       1,      do_bootd,
1068         "boot default, i.e., run 'bootcmd'",
1069         ""
1070 );
1071
1072 #endif
1073
1074
1075 /*******************************************************************/
1076 /* iminfo - print header info for a requested image */
1077 /*******************************************************************/
1078 #if defined(CONFIG_CMD_IMI)
1079 int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1080 {
1081         int     arg;
1082         ulong   addr;
1083         int     rcode = 0;
1084
1085         if (argc < 2) {
1086                 return image_info(load_addr);
1087         }
1088
1089         for (arg = 1; arg < argc; ++arg) {
1090                 addr = simple_strtoul(argv[arg], NULL, 16);
1091                 if (image_info(addr) != 0)
1092                         rcode = 1;
1093         }
1094         return rcode;
1095 }
1096
1097 static int image_info(ulong addr)
1098 {
1099         void *hdr = (void *)addr;
1100
1101         printf("\n## Checking Image at %08lx ...\n", addr);
1102
1103         switch (genimg_get_format(hdr)) {
1104         case IMAGE_FORMAT_LEGACY:
1105                 puts("   Legacy image found\n");
1106                 if (!image_check_magic(hdr)) {
1107                         puts("   Bad Magic Number\n");
1108                         return 1;
1109                 }
1110
1111                 if (!image_check_hcrc(hdr)) {
1112                         puts("   Bad Header Checksum\n");
1113                         return 1;
1114                 }
1115
1116                 image_print_contents(hdr);
1117
1118                 puts("   Verifying Checksum ... ");
1119                 if (!image_check_dcrc(hdr)) {
1120                         puts("   Bad Data CRC\n");
1121                         return 1;
1122                 }
1123                 puts("OK\n");
1124                 return 0;
1125 #if defined(CONFIG_FIT)
1126         case IMAGE_FORMAT_FIT:
1127                 puts("   FIT image found\n");
1128
1129                 if (!fit_check_format(hdr)) {
1130                         puts("Bad FIT image format!\n");
1131                         return 1;
1132                 }
1133
1134                 fit_print_contents(hdr);
1135
1136                 if (!fit_all_image_check_hashes(hdr)) {
1137                         puts("Bad hash in FIT image!\n");
1138                         return 1;
1139                 }
1140
1141                 return 0;
1142 #endif
1143         default:
1144                 puts("Unknown image format!\n");
1145                 break;
1146         }
1147
1148         return 1;
1149 }
1150
1151 U_BOOT_CMD(
1152         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1153         "print header information for application image",
1154         "addr [addr ...]\n"
1155         "    - print header information for application image starting at\n"
1156         "      address 'addr' in memory; this includes verification of the\n"
1157         "      image contents (magic number, header and payload checksums)"
1158 );
1159 #endif
1160
1161
1162 /*******************************************************************/
1163 /* imls - list all images found in flash */
1164 /*******************************************************************/
1165 #if defined(CONFIG_CMD_IMLS)
1166 int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1167 {
1168         flash_info_t *info;
1169         int i, j;
1170         void *hdr;
1171
1172         for (i = 0, info = &flash_info[0];
1173                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1174
1175                 if (info->flash_id == FLASH_UNKNOWN)
1176                         goto next_bank;
1177                 for (j = 0; j < info->sector_count; ++j) {
1178
1179                         hdr = (void *)info->start[j];
1180                         if (!hdr)
1181                                 goto next_sector;
1182
1183                         switch (genimg_get_format(hdr)) {
1184                         case IMAGE_FORMAT_LEGACY:
1185                                 if (!image_check_hcrc(hdr))
1186                                         goto next_sector;
1187
1188                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1189                                 image_print_contents(hdr);
1190
1191                                 puts("   Verifying Checksum ... ");
1192                                 if (!image_check_dcrc(hdr)) {
1193                                         puts("Bad Data CRC\n");
1194                                 } else {
1195                                         puts("OK\n");
1196                                 }
1197                                 break;
1198 #if defined(CONFIG_FIT)
1199                         case IMAGE_FORMAT_FIT:
1200                                 if (!fit_check_format(hdr))
1201                                         goto next_sector;
1202
1203                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1204                                 fit_print_contents(hdr);
1205                                 break;
1206 #endif
1207                         default:
1208                                 goto next_sector;
1209                         }
1210
1211 next_sector:            ;
1212                 }
1213 next_bank:      ;
1214         }
1215
1216         return (0);
1217 }
1218
1219 U_BOOT_CMD(
1220         imls,   1,              1,      do_imls,
1221         "list all images found in flash",
1222         "\n"
1223         "    - Prints information about all images found at sector\n"
1224         "      boundaries in flash."
1225 );
1226 #endif
1227
1228 /*******************************************************************/
1229 /* helper routines */
1230 /*******************************************************************/
1231 #ifdef CONFIG_SILENT_CONSOLE
1232 static void fixup_silent_linux(void)
1233 {
1234         char buf[256], *start, *end;
1235         char *cmdline = getenv("bootargs");
1236
1237         /* Only fix cmdline when requested */
1238         if (!(gd->flags & GD_FLG_SILENT))
1239                 return;
1240
1241         debug("before silent fix-up: %s\n", cmdline);
1242         if (cmdline) {
1243                 start = strstr(cmdline, "console=");
1244                 if (start) {
1245                         end = strchr(start, ' ');
1246                         strncpy(buf, cmdline, (start - cmdline + 8));
1247                         if (end)
1248                                 strcpy(buf + (start - cmdline + 8), end);
1249                         else
1250                                 buf[start - cmdline + 8] = '\0';
1251                 } else {
1252                         strcpy(buf, cmdline);
1253                         strcat(buf, " console=");
1254                 }
1255         } else {
1256                 strcpy(buf, "console=");
1257         }
1258
1259         setenv("bootargs", buf);
1260         debug("after silent fix-up: %s\n", buf);
1261 }
1262 #endif /* CONFIG_SILENT_CONSOLE */
1263
1264
1265 /*******************************************************************/
1266 /* OS booting routines */
1267 /*******************************************************************/
1268
1269 #ifdef CONFIG_BOOTM_NETBSD
1270 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1271                             bootm_headers_t *images)
1272 {
1273         void (*loader)(bd_t *, image_header_t *, char *, char *);
1274         image_header_t *os_hdr, *hdr;
1275         ulong kernel_data, kernel_len;
1276         char *consdev;
1277         char *cmdline;
1278
1279         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1280                 return 1;
1281
1282 #if defined(CONFIG_FIT)
1283         if (!images->legacy_hdr_valid) {
1284                 fit_unsupported_reset("NetBSD");
1285                 return 1;
1286         }
1287 #endif
1288         hdr = images->legacy_hdr_os;
1289
1290         /*
1291          * Booting a (NetBSD) kernel image
1292          *
1293          * This process is pretty similar to a standalone application:
1294          * The (first part of an multi-) image must be a stage-2 loader,
1295          * which in turn is responsible for loading & invoking the actual
1296          * kernel.  The only differences are the parameters being passed:
1297          * besides the board info strucure, the loader expects a command
1298          * line, the name of the console device, and (optionally) the
1299          * address of the original image header.
1300          */
1301         os_hdr = NULL;
1302         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1303                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1304                 if (kernel_len)
1305                         os_hdr = hdr;
1306         }
1307
1308         consdev = "";
1309 #if   defined(CONFIG_8xx_CONS_SMC1)
1310         consdev = "smc1";
1311 #elif defined(CONFIG_8xx_CONS_SMC2)
1312         consdev = "smc2";
1313 #elif defined(CONFIG_8xx_CONS_SCC2)
1314         consdev = "scc2";
1315 #elif defined(CONFIG_8xx_CONS_SCC3)
1316         consdev = "scc3";
1317 #endif
1318
1319         if (argc > 2) {
1320                 ulong len;
1321                 int   i;
1322
1323                 for (i = 2, len = 0; i < argc; i += 1)
1324                         len += strlen(argv[i]) + 1;
1325                 cmdline = malloc(len);
1326
1327                 for (i = 2, len = 0; i < argc; i += 1) {
1328                         if (i > 2)
1329                                 cmdline[len++] = ' ';
1330                         strcpy(&cmdline[len], argv[i]);
1331                         len += strlen(argv[i]);
1332                 }
1333         } else if ((cmdline = getenv("bootargs")) == NULL) {
1334                 cmdline = "";
1335         }
1336
1337         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1338
1339         printf("## Transferring control to NetBSD stage-2 loader "
1340                 "(at address %08lx) ...\n",
1341                 (ulong)loader);
1342
1343         show_boot_progress(15);
1344
1345         /*
1346          * NetBSD Stage-2 Loader Parameters:
1347          *   r3: ptr to board info data
1348          *   r4: image address
1349          *   r5: console device
1350          *   r6: boot args string
1351          */
1352         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1353
1354         return 1;
1355 }
1356 #endif /* CONFIG_BOOTM_NETBSD*/
1357
1358 #ifdef CONFIG_LYNXKDI
1359 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1360                              bootm_headers_t *images)
1361 {
1362         image_header_t *hdr = &images->legacy_hdr_os_copy;
1363
1364         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1365                 return 1;
1366
1367 #if defined(CONFIG_FIT)
1368         if (!images->legacy_hdr_valid) {
1369                 fit_unsupported_reset("Lynx");
1370                 return 1;
1371         }
1372 #endif
1373
1374         lynxkdi_boot((image_header_t *)hdr);
1375
1376         return 1;
1377 }
1378 #endif /* CONFIG_LYNXKDI */
1379
1380 #ifdef CONFIG_BOOTM_RTEMS
1381 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1382                            bootm_headers_t *images)
1383 {
1384         void (*entry_point)(bd_t *);
1385
1386         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1387                 return 1;
1388
1389 #if defined(CONFIG_FIT)
1390         if (!images->legacy_hdr_valid) {
1391                 fit_unsupported_reset("RTEMS");
1392                 return 1;
1393         }
1394 #endif
1395
1396         entry_point = (void (*)(bd_t *))images->ep;
1397
1398         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1399                 (ulong)entry_point);
1400
1401         show_boot_progress(15);
1402
1403         /*
1404          * RTEMS Parameters:
1405          *   r3: ptr to board info data
1406          */
1407         (*entry_point)(gd->bd);
1408
1409         return 1;
1410 }
1411 #endif /* CONFIG_BOOTM_RTEMS */
1412
1413 #if defined(CONFIG_BOOTM_OSE)
1414 static int do_bootm_ose(int flag, int argc, char * const argv[],
1415                            bootm_headers_t *images)
1416 {
1417         void (*entry_point)(void);
1418
1419         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1420                 return 1;
1421
1422 #if defined(CONFIG_FIT)
1423         if (!images->legacy_hdr_valid) {
1424                 fit_unsupported_reset("OSE");
1425                 return 1;
1426         }
1427 #endif
1428
1429         entry_point = (void (*)(void))images->ep;
1430
1431         printf("## Transferring control to OSE (at address %08lx) ...\n",
1432                 (ulong)entry_point);
1433
1434         show_boot_progress(15);
1435
1436         /*
1437          * OSE Parameters:
1438          *   None
1439          */
1440         (*entry_point)();
1441
1442         return 1;
1443 }
1444 #endif /* CONFIG_BOOTM_OSE */
1445
1446 #if defined(CONFIG_CMD_ELF)
1447 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1448                              bootm_headers_t *images)
1449 {
1450         char str[80];
1451
1452         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1453                 return 1;
1454
1455 #if defined(CONFIG_FIT)
1456         if (!images->legacy_hdr_valid) {
1457                 fit_unsupported_reset("VxWorks");
1458                 return 1;
1459         }
1460 #endif
1461
1462         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1463         setenv("loadaddr", str);
1464         do_bootvx(NULL, 0, 0, NULL);
1465
1466         return 1;
1467 }
1468
1469 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1470                             bootm_headers_t *images)
1471 {
1472         char *local_args[2];
1473         char str[16];
1474
1475         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1476                 return 1;
1477
1478 #if defined(CONFIG_FIT)
1479         if (!images->legacy_hdr_valid) {
1480                 fit_unsupported_reset("QNX");
1481                 return 1;
1482         }
1483 #endif
1484
1485         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1486         local_args[0] = argv[0];
1487         local_args[1] = str;    /* and provide it via the arguments */
1488         do_bootelf(NULL, 0, 2, local_args);
1489
1490         return 1;
1491 }
1492 #endif
1493
1494 #ifdef CONFIG_INTEGRITY
1495 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1496                            bootm_headers_t *images)
1497 {
1498         void (*entry_point)(void);
1499
1500         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1501                 return 1;
1502
1503 #if defined(CONFIG_FIT)
1504         if (!images->legacy_hdr_valid) {
1505                 fit_unsupported_reset("INTEGRITY");
1506                 return 1;
1507         }
1508 #endif
1509
1510         entry_point = (void (*)(void))images->ep;
1511
1512         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1513                 (ulong)entry_point);
1514
1515         show_boot_progress(15);
1516
1517         /*
1518          * INTEGRITY Parameters:
1519          *   None
1520          */
1521         (*entry_point)();
1522
1523         return 1;
1524 }
1525 #endif