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 #if defined(CONFIG_MX51_BBG) || defined(CONFIG_MX51_3DS)
 750         if (image_get_load(hdr) < 0x90000000)
 751                 image_set_load(hdr, image_get_load(hdr)+0x20000000);
 752         if (image_get_ep(hdr) < 0x90000000)
 753                 image_set_ep(hdr, image_get_ep(hdr)+0x20000000);
 754 #endif
 755
 756         show_boot_progress(3);
 757         image_print_contents(hdr);
 758
 759         if (verify) {
 760                 puts("   Verifying Checksum ... ");
 761                 if (!image_check_dcrc(hdr)) {
 762                         printf("Bad Data CRC\n");
 763                         show_boot_progress(-3);
 764                         return NULL;
 765                 }
 766                 puts("OK\n");
 767         }
 768         show_boot_progress(4);
 769
 770         if (!image_check_target_arch(hdr)) {
 771                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 772                 show_boot_progress(-4);
 773                 return NULL;
 774         }
 775         return hdr;
 776 }
 777
 778 /**
 779  * fit_check_kernel - verify FIT format kernel subimage
 780  * @fit_hdr: pointer to the FIT image header
 781  * os_noffset: kernel subimage node offset within FIT image
 782  * @verify: data CRC verification flag
 783  *
 784  * fit_check_kernel() verifies integrity of the kernel subimage and from
 785  * specified FIT image.
 786  *
 787  * returns:
 788  *     1, on success
 789  *     0, on failure
 790  */
 791 #if defined(CONFIG_FIT)
 792 static int fit_check_kernel(const void *fit, int os_noffset, int verify)
 793 {
 794         fit_image_print(fit, os_noffset, "   ");
 795
 796         if (verify) {
 797                 puts("   Verifying Hash Integrity ... ");
 798                 if (!fit_image_check_hashes(fit, os_noffset)) {
 799                         puts("Bad Data Hash\n");
 800                         show_boot_progress(-104);
 801                         return 0;
 802                 }
 803                 puts("OK\n");
 804         }
 805         show_boot_progress(105);
 806
 807         if (!fit_image_check_target_arch(fit, os_noffset)) {
 808                 puts("Unsupported Architecture\n");
 809                 show_boot_progress(-105);
 810                 return 0;
 811         }
 812
 813         show_boot_progress(106);
 814         if (!fit_image_check_type(fit, os_noffset, IH_TYPE_KERNEL) &&
 815             !fit_image_check_type(fit, os_noffset, IH_TYPE_KERNEL_NOLOAD)) {
 816                 puts("Not a kernel image\n");
 817                 show_boot_progress(-106);
 818                 return 0;
 819         }
 820
 821         show_boot_progress(107);
 822         return 1;
 823 }
 824 #endif /* CONFIG_FIT */
 825
 826 /**
 827  * boot_get_kernel - find kernel image
 828  * @os_data: pointer to a ulong variable, will hold os data start address
 829  * @os_len: pointer to a ulong variable, will hold os data length
 830  *
 831  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 832  * and locates kernel data.
 833  *
 834  * returns:
 835  *     pointer to image header if valid image was found, plus kernel start
 836  *     address and length, otherwise NULL
 837  */
 838 static void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 839                 char * const argv[], bootm_headers_t *images, ulong *os_data,
 840                 ulong *os_len)
 841 {
 842         image_header_t  *hdr;
 843         ulong           img_addr;
 844 #if defined(CONFIG_FIT)
 845         void            *fit_hdr;
 846         const char      *fit_uname_config = NULL;
 847         const char      *fit_uname_kernel = NULL;
 848         const void      *data;
 849         size_t          len;
 850         int             cfg_noffset;
 851         int             os_noffset;
 852 #endif
 853
 854         /* find out kernel image address */
 855         if (argc < 2) {
 856                 img_addr = load_addr;
 857                 debug("*  kernel: default image load address = 0x%08lx\n",
 858                                 load_addr);
 859 #if defined(CONFIG_FIT)
 860         } else if (fit_parse_conf(argv[1], load_addr, &img_addr,
 861                                                         &fit_uname_config)) {
 862                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
 863                                 fit_uname_config, img_addr);
 864         } else if (fit_parse_subimage(argv[1], load_addr, &img_addr,
 865                                                         &fit_uname_kernel)) {
 866                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
 867                                 fit_uname_kernel, img_addr);
 868 #endif
 869         } else {
 870                 img_addr = simple_strtoul(argv[1], NULL, 16);
 871                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 872         }
 873
 874         show_boot_progress(1);
 875
 876         /* copy from dataflash if needed */
 877         img_addr = genimg_get_image(img_addr);
 878
 879         /* check image type, for FIT images get FIT kernel node */
 880         *os_data = *os_len = 0;
 881         switch (genimg_get_format((void *)img_addr)) {
 882         case IMAGE_FORMAT_LEGACY:
 883                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 884                                 img_addr);
 885                 hdr = image_get_kernel(img_addr, images->verify);
 886                 if (!hdr)
 887                         return NULL;
 888                 show_boot_progress(5);
 889
 890                 /* get os_data and os_len */
 891                 switch (image_get_type(hdr)) {
 892                 case IH_TYPE_KERNEL:
 893                 case IH_TYPE_KERNEL_NOLOAD:
 894                         *os_data = image_get_data(hdr);
 895                         *os_len = image_get_data_size(hdr);
 896                         break;
 897                 case IH_TYPE_MULTI:
 898                         image_multi_getimg(hdr, 0, os_data, os_len);
 899                         break;
 900                 case IH_TYPE_STANDALONE:
 901                         *os_data = image_get_data(hdr);
 902                         *os_len = image_get_data_size(hdr);
 903                         break;
 904                 default:
 905                         printf("Wrong Image Type for %s command\n",
 906                                 cmdtp->name);
 907                         show_boot_progress(-5);
 908                         return NULL;
 909                 }
 910
 911                 /*
 912                  * copy image header to allow for image overwrites during
 913                  * kernel decompression.
 914                  */
 915                 memmove(&images->legacy_hdr_os_copy, hdr,
 916                         sizeof(image_header_t));
 917
 918                 /* save pointer to image header */
 919                 images->legacy_hdr_os = hdr;
 920
 921                 images->legacy_hdr_valid = 1;
 922                 show_boot_progress(6);
 923                 break;
 924 #if defined(CONFIG_FIT)
 925         case IMAGE_FORMAT_FIT:
 926                 fit_hdr = (void *)img_addr;
 927                 printf("## Booting kernel from FIT Image at %08lx ...\n",
 928                                 img_addr);
 929
 930                 if (!fit_check_format(fit_hdr)) {
 931                         puts("Bad FIT kernel image format!\n");
 932                         show_boot_progress(-100);
 933                         return NULL;
 934                 }
 935                 show_boot_progress(100);
 936
 937                 if (!fit_uname_kernel) {
 938                         /*
 939                          * no kernel image node unit name, try to get config
 940                          * node first. If config unit node name is NULL
 941                          * fit_conf_get_node() will try to find default config
 942                          * node
 943                          */
 944                         show_boot_progress(101);
 945                         cfg_noffset = fit_conf_get_node(fit_hdr,
 946                                                         fit_uname_config);
 947                         if (cfg_noffset < 0) {
 948                                 show_boot_progress(-101);
 949                                 return NULL;
 950                         }
 951                         /* save configuration uname provided in the first
 952                          * bootm argument
 953                          */
 954                         images->fit_uname_cfg = fdt_get_name(fit_hdr,
 955                                                                 cfg_noffset,
 956                                                                 NULL);
 957                         printf("   Using '%s' configuration\n",
 958                                 images->fit_uname_cfg);
 959                         show_boot_progress(103);
 960
 961                         os_noffset = fit_conf_get_kernel_node(fit_hdr,
 962                                                                 cfg_noffset);
 963                         fit_uname_kernel = fit_get_name(fit_hdr, os_noffset,
 964                                                         NULL);
 965                 } else {
 966                         /* get kernel component image node offset */
 967                         show_boot_progress(102);
 968                         os_noffset = fit_image_get_node(fit_hdr,
 969                                                         fit_uname_kernel);
 970                 }
 971                 if (os_noffset < 0) {
 972                         show_boot_progress(-103);
 973                         return NULL;
 974                 }
 975
 976                 printf("   Trying '%s' kernel subimage\n", fit_uname_kernel);
 977
 978                 show_boot_progress(104);
 979                 if (!fit_check_kernel(fit_hdr, os_noffset, images->verify))
 980                         return NULL;
 981
 982                 /* get kernel image data address and length */
 983                 if (fit_image_get_data(fit_hdr, os_noffset, &data, &len)) {
 984                         puts("Could not find kernel subimage data!\n");
 985                         show_boot_progress(-107);
 986                         return NULL;
 987                 }
 988                 show_boot_progress(108);
 989
 990                 *os_len = len;
 991                 *os_data = (ulong)data;
 992                 images->fit_hdr_os = fit_hdr;
 993                 images->fit_uname_os = fit_uname_kernel;
 994                 images->fit_noffset_os = os_noffset;
 995                 break;
 996 #endif
 997         default:
 998                 printf("Wrong Image Format for %s command\n", cmdtp->name);
 999                 show_boot_progress(-108);
1000                 return NULL;
1001         }
1002
1003         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
1004                         *os_data, *os_len, *os_len);
1005
1006         return (void *)img_addr;
1007 }
1008
1009 U_BOOT_CMD(
1010         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1011         "boot application image from memory",
1012         "[addr [arg ...]]\n    - boot application image stored in memory\n"
1013         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
1014         "\t'arg' can be the address of an initrd image\n"
1015 #if defined(CONFIG_OF_LIBFDT)
1016         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1017         "\ta third argument is required which is the address of the\n"
1018         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1019         "\tuse a '-' for the second argument. If you do not pass a third\n"
1020         "\ta bd_info struct will be passed instead\n"
1021 #endif
1022 #if defined(CONFIG_FIT)
1023         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1024         "\tmust be extened to include component or configuration unit name:\n"
1025         "\taddr:<subimg_uname> - direct component image specification\n"
1026         "\taddr#<conf_uname>   - configuration specification\n"
1027         "\tUse iminfo command to get the list of existing component\n"
1028         "\timages and configurations.\n"
1029 #endif
1030         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1031         "must be\n"
1032         "issued in the order below (it's ok to not issue all sub-commands):\n"
1033         "\tstart [addr [arg ...]]\n"
1034         "\tloados  - load OS image\n"
1035 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_SPARC)
1036         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1037 #endif
1038 #if defined(CONFIG_OF_LIBFDT)
1039         "\tfdt     - relocate flat device tree\n"
1040 #endif
1041         "\tcmdline - OS specific command line processing/setup\n"
1042         "\tbdt     - OS specific bd_t processing\n"
1043         "\tprep    - OS specific prep before relocation or go\n"
1044         "\tgo      - start OS"
1045 );
1046
1047 /*******************************************************************/
1048 /* bootd - boot default image */
1049 /*******************************************************************/
1050 #if defined(CONFIG_CMD_BOOTD)
1051 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1052 {
1053         int rcode = 0;
1054
1055 #ifndef CONFIG_SYS_HUSH_PARSER
1056         if (run_command(getenv("bootcmd"), flag) < 0)
1057                 rcode = 1;
1058 #else
1059         if (parse_string_outer(getenv("bootcmd"),
1060                         FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0)
1061                 rcode = 1;
1062 #endif
1063         return rcode;
1064 }
1065
1066 U_BOOT_CMD(
1067         boot,   1,      1,      do_bootd,
1068         "boot default, i.e., run 'bootcmd'",
1069         ""
1070 );
1071
1072 /* keep old command name "bootd" for backward compatibility */
1073 U_BOOT_CMD(
1074         bootd, 1,       1,      do_bootd,
1075         "boot default, i.e., run 'bootcmd'",
1076         ""
1077 );
1078
1079 #endif
1080
1081
1082 /*******************************************************************/
1083 /* iminfo - print header info for a requested image */
1084 /*******************************************************************/
1085 #if defined(CONFIG_CMD_IMI)
1086 int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1087 {
1088         int     arg;
1089         ulong   addr;
1090         int     rcode = 0;
1091
1092         if (argc < 2) {
1093                 return image_info(load_addr);
1094         }
1095
1096         for (arg = 1; arg < argc; ++arg) {
1097                 addr = simple_strtoul(argv[arg], NULL, 16);
1098                 if (image_info(addr) != 0)
1099                         rcode = 1;
1100         }
1101         return rcode;
1102 }
1103
1104 static int image_info(ulong addr)
1105 {
1106         void *hdr = (void *)addr;
1107
1108         printf("\n## Checking Image at %08lx ...\n", addr);
1109
1110         switch (genimg_get_format(hdr)) {
1111         case IMAGE_FORMAT_LEGACY:
1112                 puts("   Legacy image found\n");
1113                 if (!image_check_magic(hdr)) {
1114                         puts("   Bad Magic Number\n");
1115                         return 1;
1116                 }
1117
1118                 if (!image_check_hcrc(hdr)) {
1119                         puts("   Bad Header Checksum\n");
1120                         return 1;
1121                 }
1122
1123                 image_print_contents(hdr);
1124
1125                 puts("   Verifying Checksum ... ");
1126                 if (!image_check_dcrc(hdr)) {
1127                         puts("   Bad Data CRC\n");
1128                         return 1;
1129                 }
1130                 puts("OK\n");
1131                 return 0;
1132 #if defined(CONFIG_FIT)
1133         case IMAGE_FORMAT_FIT:
1134                 puts("   FIT image found\n");
1135
1136                 if (!fit_check_format(hdr)) {
1137                         puts("Bad FIT image format!\n");
1138                         return 1;
1139                 }
1140
1141                 fit_print_contents(hdr);
1142
1143                 if (!fit_all_image_check_hashes(hdr)) {
1144                         puts("Bad hash in FIT image!\n");
1145                         return 1;
1146                 }
1147
1148                 return 0;
1149 #endif
1150         default:
1151                 puts("Unknown image format!\n");
1152                 break;
1153         }
1154
1155         return 1;
1156 }
1157
1158 U_BOOT_CMD(
1159         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1160         "print header information for application image",
1161         "addr [addr ...]\n"
1162         "    - print header information for application image starting at\n"
1163         "      address 'addr' in memory; this includes verification of the\n"
1164         "      image contents (magic number, header and payload checksums)"
1165 );
1166 #endif
1167
1168
1169 /*******************************************************************/
1170 /* imls - list all images found in flash */
1171 /*******************************************************************/
1172 #if defined(CONFIG_CMD_IMLS)
1173 int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1174 {
1175         flash_info_t *info;
1176         int i, j;
1177         void *hdr;
1178
1179         for (i = 0, info = &flash_info[0];
1180                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1181
1182                 if (info->flash_id == FLASH_UNKNOWN)
1183                         goto next_bank;
1184                 for (j = 0; j < info->sector_count; ++j) {
1185
1186                         hdr = (void *)info->start[j];
1187                         if (!hdr)
1188                                 goto next_sector;
1189
1190                         switch (genimg_get_format(hdr)) {
1191                         case IMAGE_FORMAT_LEGACY:
1192                                 if (!image_check_hcrc(hdr))
1193                                         goto next_sector;
1194
1195                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1196                                 image_print_contents(hdr);
1197
1198                                 puts("   Verifying Checksum ... ");
1199                                 if (!image_check_dcrc(hdr)) {
1200                                         puts("Bad Data CRC\n");
1201                                 } else {
1202                                         puts("OK\n");
1203                                 }
1204                                 break;
1205 #if defined(CONFIG_FIT)
1206                         case IMAGE_FORMAT_FIT:
1207                                 if (!fit_check_format(hdr))
1208                                         goto next_sector;
1209
1210                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1211                                 fit_print_contents(hdr);
1212                                 break;
1213 #endif
1214                         default:
1215                                 goto next_sector;
1216                         }
1217
1218 next_sector:            ;
1219                 }
1220 next_bank:      ;
1221         }
1222
1223         return (0);
1224 }
1225
1226 U_BOOT_CMD(
1227         imls,   1,              1,      do_imls,
1228         "list all images found in flash",
1229         "\n"
1230         "    - Prints information about all images found at sector\n"
1231         "      boundaries in flash."
1232 );
1233 #endif
1234
1235 /*******************************************************************/
1236 /* helper routines */
1237 /*******************************************************************/
1238 #ifdef CONFIG_SILENT_CONSOLE
1239 static void fixup_silent_linux(void)
1240 {
1241         char buf[256], *start, *end;
1242         char *cmdline = getenv("bootargs");
1243
1244         /* Only fix cmdline when requested */
1245         if (!(gd->flags & GD_FLG_SILENT))
1246                 return;
1247
1248         debug("before silent fix-up: %s\n", cmdline);
1249         if (cmdline) {
1250                 start = strstr(cmdline, "console=");
1251                 if (start) {
1252                         end = strchr(start, ' ');
1253                         strncpy(buf, cmdline, (start - cmdline + 8));
1254                         if (end)
1255                                 strcpy(buf + (start - cmdline + 8), end);
1256                         else
1257                                 buf[start - cmdline + 8] = '\0';
1258                 } else {
1259                         strcpy(buf, cmdline);
1260                         strcat(buf, " console=");
1261                 }
1262         } else {
1263                 strcpy(buf, "console=");
1264         }
1265
1266         setenv("bootargs", buf);
1267         debug("after silent fix-up: %s\n", buf);
1268 }
1269 #endif /* CONFIG_SILENT_CONSOLE */
1270
1271
1272 /*******************************************************************/
1273 /* OS booting routines */
1274 /*******************************************************************/
1275
1276 #ifdef CONFIG_BOOTM_NETBSD
1277 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1278                             bootm_headers_t *images)
1279 {
1280         void (*loader)(bd_t *, image_header_t *, char *, char *);
1281         image_header_t *os_hdr, *hdr;
1282         ulong kernel_data, kernel_len;
1283         char *consdev;
1284         char *cmdline;
1285
1286         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1287                 return 1;
1288
1289 #if defined(CONFIG_FIT)
1290         if (!images->legacy_hdr_valid) {
1291                 fit_unsupported_reset("NetBSD");
1292                 return 1;
1293         }
1294 #endif
1295         hdr = images->legacy_hdr_os;
1296
1297         /*
1298          * Booting a (NetBSD) kernel image
1299          *
1300          * This process is pretty similar to a standalone application:
1301          * The (first part of an multi-) image must be a stage-2 loader,
1302          * which in turn is responsible for loading & invoking the actual
1303          * kernel.  The only differences are the parameters being passed:
1304          * besides the board info strucure, the loader expects a command
1305          * line, the name of the console device, and (optionally) the
1306          * address of the original image header.
1307          */
1308         os_hdr = NULL;
1309         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1310                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1311                 if (kernel_len)
1312                         os_hdr = hdr;
1313         }
1314
1315         consdev = "";
1316 #if   defined(CONFIG_8xx_CONS_SMC1)
1317         consdev = "smc1";
1318 #elif defined(CONFIG_8xx_CONS_SMC2)
1319         consdev = "smc2";
1320 #elif defined(CONFIG_8xx_CONS_SCC2)
1321         consdev = "scc2";
1322 #elif defined(CONFIG_8xx_CONS_SCC3)
1323         consdev = "scc3";
1324 #endif
1325
1326         if (argc > 2) {
1327                 ulong len;
1328                 int   i;
1329
1330                 for (i = 2, len = 0; i < argc; i += 1)
1331                         len += strlen(argv[i]) + 1;
1332                 cmdline = malloc(len);
1333
1334                 for (i = 2, len = 0; i < argc; i += 1) {
1335                         if (i > 2)
1336                                 cmdline[len++] = ' ';
1337                         strcpy(&cmdline[len], argv[i]);
1338                         len += strlen(argv[i]);
1339                 }
1340         } else if ((cmdline = getenv("bootargs")) == NULL) {
1341                 cmdline = "";
1342         }
1343
1344         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1345
1346         printf("## Transferring control to NetBSD stage-2 loader "
1347                 "(at address %08lx) ...\n",
1348                 (ulong)loader);
1349
1350         show_boot_progress(15);
1351
1352         /*
1353          * NetBSD Stage-2 Loader Parameters:
1354          *   r3: ptr to board info data
1355          *   r4: image address
1356          *   r5: console device
1357          *   r6: boot args string
1358          */
1359         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1360
1361         return 1;
1362 }
1363 #endif /* CONFIG_BOOTM_NETBSD*/
1364
1365 #ifdef CONFIG_LYNXKDI
1366 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1367                              bootm_headers_t *images)
1368 {
1369         image_header_t *hdr = &images->legacy_hdr_os_copy;
1370
1371         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1372                 return 1;
1373
1374 #if defined(CONFIG_FIT)
1375         if (!images->legacy_hdr_valid) {
1376                 fit_unsupported_reset("Lynx");
1377                 return 1;
1378         }
1379 #endif
1380
1381         lynxkdi_boot((image_header_t *)hdr);
1382
1383         return 1;
1384 }
1385 #endif /* CONFIG_LYNXKDI */
1386
1387 #ifdef CONFIG_BOOTM_RTEMS
1388 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1389                            bootm_headers_t *images)
1390 {
1391         void (*entry_point)(bd_t *);
1392
1393         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1394                 return 1;
1395
1396 #if defined(CONFIG_FIT)
1397         if (!images->legacy_hdr_valid) {
1398                 fit_unsupported_reset("RTEMS");
1399                 return 1;
1400         }
1401 #endif
1402
1403         entry_point = (void (*)(bd_t *))images->ep;
1404
1405         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1406                 (ulong)entry_point);
1407
1408         show_boot_progress(15);
1409
1410         /*
1411          * RTEMS Parameters:
1412          *   r3: ptr to board info data
1413          */
1414         (*entry_point)(gd->bd);
1415
1416         return 1;
1417 }
1418 #endif /* CONFIG_BOOTM_RTEMS */
1419
1420 #if defined(CONFIG_BOOTM_OSE)
1421 static int do_bootm_ose(int flag, int argc, char * const argv[],
1422                            bootm_headers_t *images)
1423 {
1424         void (*entry_point)(void);
1425
1426         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1427                 return 1;
1428
1429 #if defined(CONFIG_FIT)
1430         if (!images->legacy_hdr_valid) {
1431                 fit_unsupported_reset("OSE");
1432                 return 1;
1433         }
1434 #endif
1435
1436         entry_point = (void (*)(void))images->ep;
1437
1438         printf("## Transferring control to OSE (at address %08lx) ...\n",
1439                 (ulong)entry_point);
1440
1441         show_boot_progress(15);
1442
1443         /*
1444          * OSE Parameters:
1445          *   None
1446          */
1447         (*entry_point)();
1448
1449         return 1;
1450 }
1451 #endif /* CONFIG_BOOTM_OSE */
1452
1453 #if defined(CONFIG_CMD_ELF)
1454 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1455                              bootm_headers_t *images)
1456 {
1457         char str[80];
1458
1459         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1460                 return 1;
1461
1462 #if defined(CONFIG_FIT)
1463         if (!images->legacy_hdr_valid) {
1464                 fit_unsupported_reset("VxWorks");
1465                 return 1;
1466         }
1467 #endif
1468
1469         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1470         setenv("loadaddr", str);
1471         do_bootvx(NULL, 0, 0, NULL);
1472
1473         return 1;
1474 }
1475
1476 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1477                             bootm_headers_t *images)
1478 {
1479         char *local_args[2];
1480         char str[16];
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("QNX");
1488                 return 1;
1489         }
1490 #endif
1491
1492         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1493         local_args[0] = argv[0];
1494         local_args[1] = str;    /* and provide it via the arguments */
1495         do_bootelf(NULL, 0, 2, local_args);
1496
1497         return 1;
1498 }
1499 #endif
1500
1501 #ifdef CONFIG_INTEGRITY
1502 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1503                            bootm_headers_t *images)
1504 {
1505         void (*entry_point)(void);
1506
1507         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1508                 return 1;
1509
1510 #if defined(CONFIG_FIT)
1511         if (!images->legacy_hdr_valid) {
1512                 fit_unsupported_reset("INTEGRITY");
1513                 return 1;
1514         }
1515 #endif
1516
1517         entry_point = (void (*)(void))images->ep;
1518
1519         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1520                 (ulong)entry_point);
1521
1522         show_boot_progress(15);
1523
1524         /*
1525          * INTEGRITY Parameters:
1526          *   None
1527          */
1528         (*entry_point)();
1529
1530         return 1;
1531 }
1532 #endif