common/cmd_bootm.c

   1 /*
   2  * (C) Copyright 2000-2009
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24
  25 /*
  26  * Boot support
  27  */
  28 #include <common.h>
  29 #include <watchdog.h>
  30 #include <command.h>
  31 #include <image.h>
  32 #include <malloc.h>
  33 #include <u-boot/zlib.h>
  34 #include <bzlib.h>
  35 #include <environment.h>
  36 #include <lmb.h>
  37 #include <linux/ctype.h>
  38 #include <asm/byteorder.h>
  39 #include <asm/io.h>
  40 #include <linux/compiler.h>
  41
  42 #if defined(CONFIG_CMD_USB)
  43 #include <usb.h>
  44 #endif
  45
  46 #ifdef CONFIG_SYS_HUSH_PARSER
  47 #include <hush.h>
  48 #endif
  49
  50 #if defined(CONFIG_OF_LIBFDT)
  51 #include <libfdt.h>
  52 #include <fdt_support.h>
  53 #endif
  54
  55 #ifdef CONFIG_LZMA
  56 #include <lzma/LzmaTypes.h>
  57 #include <lzma/LzmaDec.h>
  58 #include <lzma/LzmaTools.h>
  59 #endif /* CONFIG_LZMA */
  60
  61 #ifdef CONFIG_LZO
  62 #include <linux/lzo.h>
  63 #endif /* CONFIG_LZO */
  64
  65 DECLARE_GLOBAL_DATA_PTR;
  66
  67 #ifndef CONFIG_SYS_BOOTM_LEN
  68 #define CONFIG_SYS_BOOTM_LEN    0x800000        /* use 8MByte as default max gunzip size */
  69 #endif
  70
  71 #ifdef CONFIG_BZIP2
  72 extern void bz_internal_error(int);
  73 #endif
  74
  75 #if defined(CONFIG_CMD_IMI)
  76 static int image_info(unsigned long addr);
  77 #endif
  78
  79 #if defined(CONFIG_CMD_IMLS)
  80 #include <flash.h>
  81 #include <mtd/cfi_flash.h>
  82 extern flash_info_t flash_info[]; /* info for FLASH chips */
  83 #endif
  84
  85 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
  86 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  87 #endif
  88
  89 #include <linux/err.h>
  90 #include <nand.h>
  91
  92 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
  93 static void fixup_silent_linux(void);
  94 #endif
  95
  96 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
  97                                 char * const argv[], bootm_headers_t *images,
  98                                 ulong *os_data, ulong *os_len);
  99
 100 /*
 101  *  Continue booting an OS image; caller already has:
 102  *  - copied image header to global variable `header'
 103  *  - checked header magic number, checksums (both header & image),
 104  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
 105  *  - loaded (first part of) image to header load address,
 106  *  - disabled interrupts.
 107  *
 108  * @flag: Command flags (CMD_FLAG_...)
 109  * @argc: Number of arguments. Note that the arguments are shifted down
 110  *       so that 0 is the first argument not processed by U-Boot, and
 111  *       argc is adjusted accordingly. This avoids confusion as to how
 112  *       many arguments are available for the OS.
 113  * @images: Pointers to os/initrd/fdt
 114  * @return 1 on error. On success the OS boots so this function does
 115  * not return.
 116  */
 117 typedef int boot_os_fn(int flag, int argc, char * const argv[],
 118                         bootm_headers_t *images);
 119
 120 #ifdef CONFIG_BOOTM_LINUX
 121 extern boot_os_fn do_bootm_linux;
 122 #endif
 123 #ifdef CONFIG_BOOTM_NETBSD
 124 static boot_os_fn do_bootm_netbsd;
 125 #endif
 126 #if defined(CONFIG_LYNXKDI)
 127 static boot_os_fn do_bootm_lynxkdi;
 128 extern void lynxkdi_boot(image_header_t *);
 129 #endif
 130 #ifdef CONFIG_BOOTM_RTEMS
 131 static boot_os_fn do_bootm_rtems;
 132 #endif
 133 #if defined(CONFIG_BOOTM_OSE)
 134 static boot_os_fn do_bootm_ose;
 135 #endif
 136 #if defined(CONFIG_BOOTM_PLAN9)
 137 static boot_os_fn do_bootm_plan9;
 138 #endif
 139 #if defined(CONFIG_CMD_ELF)
 140 static boot_os_fn do_bootm_vxworks;
 141 static boot_os_fn do_bootm_qnxelf;
 142 int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 143 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 144 #endif
 145 #if defined(CONFIG_INTEGRITY)
 146 static boot_os_fn do_bootm_integrity;
 147 #endif
 148
 149 static boot_os_fn *boot_os[] = {
 150 #ifdef CONFIG_BOOTM_LINUX
 151         [IH_OS_LINUX] = do_bootm_linux,
 152 #endif
 153 #ifdef CONFIG_BOOTM_NETBSD
 154         [IH_OS_NETBSD] = do_bootm_netbsd,
 155 #endif
 156 #ifdef CONFIG_LYNXKDI
 157         [IH_OS_LYNXOS] = do_bootm_lynxkdi,
 158 #endif
 159 #ifdef CONFIG_BOOTM_RTEMS
 160         [IH_OS_RTEMS] = do_bootm_rtems,
 161 #endif
 162 #if defined(CONFIG_BOOTM_OSE)
 163         [IH_OS_OSE] = do_bootm_ose,
 164 #endif
 165 #if defined(CONFIG_BOOTM_PLAN9)
 166         [IH_OS_PLAN9] = do_bootm_plan9,
 167 #endif
 168 #if defined(CONFIG_CMD_ELF)
 169         [IH_OS_VXWORKS] = do_bootm_vxworks,
 170         [IH_OS_QNX] = do_bootm_qnxelf,
 171 #endif
 172 #ifdef CONFIG_INTEGRITY
 173         [IH_OS_INTEGRITY] = do_bootm_integrity,
 174 #endif
 175 };
 176
 177 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
 178
 179 /* Allow for arch specific config before we boot */
 180 static void __arch_preboot_os(void)
 181 {
 182         /* please define platform specific arch_preboot_os() */
 183 }
 184 void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
 185
 186 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
 187
 188 #ifdef CONFIG_LMB
 189 static void boot_start_lmb(bootm_headers_t *images)
 190 {
 191         ulong           mem_start;
 192         phys_size_t     mem_size;
 193
 194         lmb_init(&images->lmb);
 195
 196         mem_start = getenv_bootm_low();
 197         mem_size = getenv_bootm_size();
 198
 199         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
 200
 201         arch_lmb_reserve(&images->lmb);
 202         board_lmb_reserve(&images->lmb);
 203 }
 204 #else
 205 #define lmb_reserve(lmb, base, size)
 206 static inline void boot_start_lmb(bootm_headers_t *images) { }
 207 #endif
 208
 209 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 210 {
 211         const void *os_hdr;
 212         int ret;
 213
 214         memset((void *)&images, 0, sizeof(images));
 215         images.verify = getenv_yesno("verify");
 216
 217         boot_start_lmb(&images);
 218
 219         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
 220
 221         /* get kernel image header, start address and length */
 222         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
 223                         &images, &images.os.image_start, &images.os.image_len);
 224         if (images.os.image_len == 0) {
 225                 puts("ERROR: can't get kernel image!\n");
 226                 return 1;
 227         }
 228
 229         /* get image parameters */
 230         switch (genimg_get_format(os_hdr)) {
 231         case IMAGE_FORMAT_LEGACY:
 232                 images.os.type = image_get_type(os_hdr);
 233                 images.os.comp = image_get_comp(os_hdr);
 234                 images.os.os = image_get_os(os_hdr);
 235
 236                 images.os.end = image_get_image_end(os_hdr);
 237                 images.os.load = image_get_load(os_hdr);
 238                 break;
 239 #if defined(CONFIG_FIT)
 240         case IMAGE_FORMAT_FIT:
 241                 if (fit_image_get_type(images.fit_hdr_os,
 242                                         images.fit_noffset_os, &images.os.type)) {
 243                         puts("Can't get image type!\n");
 244                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 245                         return 1;
 246                 }
 247
 248                 if (fit_image_get_comp(images.fit_hdr_os,
 249                                         images.fit_noffset_os, &images.os.comp)) {
 250                         puts("Can't get image compression!\n");
 251                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 252                         return 1;
 253                 }
 254
 255                 if (fit_image_get_os(images.fit_hdr_os,
 256                                         images.fit_noffset_os, &images.os.os)) {
 257                         puts("Can't get image OS!\n");
 258                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 259                         return 1;
 260                 }
 261
 262                 images.os.end = fit_get_end(images.fit_hdr_os);
 263
 264                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 265                                         &images.os.load)) {
 266                         puts("Can't get image load address!\n");
 267                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 268                         return 1;
 269                 }
 270                 break;
 271 #endif
 272         default:
 273                 puts("ERROR: unknown image format type!\n");
 274                 return 1;
 275         }
 276
 277         /* find kernel entry point */
 278         if (images.legacy_hdr_valid) {
 279                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 280 #if defined(CONFIG_FIT)
 281         } else if (images.fit_uname_os) {
 282                 ret = fit_image_get_entry(images.fit_hdr_os,
 283                                           images.fit_noffset_os, &images.ep);
 284                 if (ret) {
 285                         puts("Can't get entry point property!\n");
 286                         return 1;
 287                 }
 288 #endif
 289         } else {
 290                 puts("Could not find kernel entry point!\n");
 291                 return 1;
 292         }
 293
 294         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 295                 images.os.load = images.os.image_start;
 296                 images.ep += images.os.load;
 297         }
 298
 299         if (((images.os.type == IH_TYPE_KERNEL) ||
 300              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 301              (images.os.type == IH_TYPE_MULTI)) &&
 302             (images.os.os == IH_OS_LINUX)) {
 303                 /* find ramdisk */
 304                 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 305                                 &images.rd_start, &images.rd_end);
 306                 if (ret) {
 307                         puts("Ramdisk image is corrupt or invalid\n");
 308                         return 1;
 309                 }
 310
 311 #if defined(CONFIG_OF_LIBFDT)
 312                 /* find flattened device tree */
 313                 ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
 314                                    &images.ft_addr, &images.ft_len);
 315                 if (ret) {
 316                         puts("Could not find a valid device tree\n");
 317                         return 1;
 318                 }
 319
 320                 set_working_fdt_addr(images.ft_addr);
 321 #endif
 322         }
 323
 324         images.os.start = (ulong)os_hdr;
 325         images.state = BOOTM_STATE_START;
 326
 327         return 0;
 328 }
 329
 330 #define BOOTM_ERR_RESET         -1
 331 #define BOOTM_ERR_OVERLAP       -2
 332 #define BOOTM_ERR_UNIMPLEMENTED -3
 333 static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
 334 {
 335         uint8_t comp = os.comp;
 336         ulong load = os.load;
 337         ulong blob_start = os.start;
 338         ulong blob_end = os.end;
 339         ulong image_start = os.image_start;
 340         ulong image_len = os.image_len;
 341         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 342         int no_overlap = 0;
 343         void *load_buf, *image_buf;
 344 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 345         int ret;
 346 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 347
 348         const char *type_name = genimg_get_type_name(os.type);
 349
 350         load_buf = map_sysmem(load, image_len);
 351         image_buf = map_sysmem(image_start, image_len);
 352         switch (comp) {
 353         case IH_COMP_NONE:
 354                 if (load == blob_start || load == image_start) {
 355                         printf("   XIP %s ... ", type_name);
 356                         no_overlap = 1;
 357                 } else {
 358                         printf("   Loading %s ... ", type_name);
 359                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
 360                 }
 361                 *load_end = load + image_len;
 362                 puts("OK\n");
 363                 break;
 364 #ifdef CONFIG_GZIP
 365         case IH_COMP_GZIP:
 366                 printf("   Uncompressing %s ... ", type_name);
 367                 if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) {
 368                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 369                                 "error - must RESET board to recover\n");
 370                         if (boot_progress)
 371                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 372                         return BOOTM_ERR_RESET;
 373                 }
 374
 375                 *load_end = load + image_len;
 376                 break;
 377 #endif /* CONFIG_GZIP */
 378 #ifdef CONFIG_BZIP2
 379         case IH_COMP_BZIP2:
 380                 printf("   Uncompressing %s ... ", type_name);
 381                 /*
 382                  * If we've got less than 4 MB of malloc() space,
 383                  * use slower decompression algorithm which requires
 384                  * at most 2300 KB of memory.
 385                  */
 386                 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
 387                         image_buf, image_len,
 388                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 389                 if (i != BZ_OK) {
 390                         printf("BUNZIP2: uncompress or overwrite error %d "
 391                                 "- must RESET board to recover\n", i);
 392                         if (boot_progress)
 393                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 394                         return BOOTM_ERR_RESET;
 395                 }
 396
 397                 *load_end = load + unc_len;
 398                 break;
 399 #endif /* CONFIG_BZIP2 */
 400 #ifdef CONFIG_LZMA
 401         case IH_COMP_LZMA: {
 402                 SizeT lzma_len = unc_len;
 403                 printf("   Uncompressing %s ... ", type_name);
 404
 405                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
 406                                                image_buf, image_len);
 407                 unc_len = lzma_len;
 408                 if (ret != SZ_OK) {
 409                         printf("LZMA: uncompress or overwrite error %d "
 410                                 "- must RESET board to recover\n", ret);
 411                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 412                         return BOOTM_ERR_RESET;
 413                 }
 414                 *load_end = load + unc_len;
 415                 break;
 416         }
 417 #endif /* CONFIG_LZMA */
 418 #ifdef CONFIG_LZO
 419         case IH_COMP_LZO:
 420                 printf("   Uncompressing %s ... ", type_name);
 421
 422                 ret = lzop_decompress(image_buf, image_len, load_buf,
 423                                       &unc_len);
 424                 if (ret != LZO_E_OK) {
 425                         printf("LZO: uncompress or overwrite error %d "
 426                               "- must RESET board to recover\n", ret);
 427                         if (boot_progress)
 428                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 429                         return BOOTM_ERR_RESET;
 430                 }
 431
 432                 *load_end = load + unc_len;
 433                 break;
 434 #endif /* CONFIG_LZO */
 435         default:
 436                 printf("Unimplemented compression type %d\n", comp);
 437                 return BOOTM_ERR_UNIMPLEMENTED;
 438         }
 439
 440         flush_cache(load, (*load_end - load) * sizeof(ulong));
 441
 442         puts("OK\n");
 443         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 444         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 445
 446         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 447                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 448                         blob_start, blob_end);
 449                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 450                         *load_end);
 451
 452                 return BOOTM_ERR_OVERLAP;
 453         }
 454
 455         return 0;
 456 }
 457
 458 static int bootm_start_standalone(ulong iflag, int argc, char * const argv[])
 459 {
 460         char  *s;
 461         int   (*appl)(int, char * const []);
 462
 463         /* Don't start if "autostart" is set to "no" */
 464         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 465                 setenv_hex("filesize", images.os.image_len);
 466                 return 0;
 467         }
 468         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
 469         (*appl)(argc, argv);
 470         return 0;
 471 }
 472
 473 /* we overload the cmd field with our state machine info instead of a
 474  * function pointer */
 475 static cmd_tbl_t cmd_bootm_sub[] = {
 476         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 477         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 478 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 479         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 480 #endif
 481 #ifdef CONFIG_OF_LIBFDT
 482         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 483 #endif
 484         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 485         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 486         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 487         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 488 };
 489
 490 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 491                         char * const argv[])
 492 {
 493         int ret = 0;
 494         long state;
 495         cmd_tbl_t *c;
 496         boot_os_fn *boot_fn;
 497
 498         c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 499         argc--; argv++;
 500
 501         if (c) {
 502                 state = (long)c->cmd;
 503
 504                 /* treat start special since it resets the state machine */
 505                 if (state == BOOTM_STATE_START)
 506                         return bootm_start(cmdtp, flag, argc, argv);
 507         } else {
 508                 /* Unrecognized command */
 509                 return CMD_RET_USAGE;
 510         }
 511
 512         if (images.state < BOOTM_STATE_START ||
 513             images.state >= state) {
 514                 printf("Trying to execute a command out of order\n");
 515                 return CMD_RET_USAGE;
 516         }
 517
 518         images.state |= state;
 519         boot_fn = boot_os[images.os.os];
 520
 521         switch (state) {
 522                 ulong load_end;
 523                 case BOOTM_STATE_START:
 524                         /* should never occur */
 525                         break;
 526                 case BOOTM_STATE_LOADOS:
 527                         ret = bootm_load_os(images.os, &load_end, 0);
 528                         if (ret)
 529                                 return ret;
 530
 531                         lmb_reserve(&images.lmb, images.os.load,
 532                                         (load_end - images.os.load));
 533                         break;
 534 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 535                 case BOOTM_STATE_RAMDISK:
 536                 {
 537                         ulong rd_len = images.rd_end - images.rd_start;
 538
 539                         ret = boot_ramdisk_high(&images.lmb, images.rd_start,
 540                                 rd_len, &images.initrd_start, &images.initrd_end);
 541                         if (ret)
 542                                 return ret;
 543
 544                         setenv_hex("initrd_start", images.initrd_start);
 545                         setenv_hex("initrd_end", images.initrd_end);
 546                 }
 547                         break;
 548 #endif
 549 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
 550                 case BOOTM_STATE_FDT:
 551                 {
 552                         boot_fdt_add_mem_rsv_regions(&images.lmb,
 553                                                      images.ft_addr);
 554                         ret = boot_relocate_fdt(&images.lmb,
 555                                 &images.ft_addr, &images.ft_len);
 556                         break;
 557                 }
 558 #endif
 559                 case BOOTM_STATE_OS_CMDLINE:
 560                         ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, &images);
 561                         if (ret)
 562                                 printf("cmdline subcommand not supported\n");
 563                         break;
 564                 case BOOTM_STATE_OS_BD_T:
 565                         ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, &images);
 566                         if (ret)
 567                                 printf("bdt subcommand not supported\n");
 568                         break;
 569                 case BOOTM_STATE_OS_PREP:
 570                         ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, &images);
 571                         if (ret)
 572                                 printf("prep subcommand not supported\n");
 573                         break;
 574                 case BOOTM_STATE_OS_GO:
 575                         disable_interrupts();
 576 #ifdef CONFIG_NETCONSOLE
 577                         /*
 578                          * Stop the ethernet stack if NetConsole could have
 579                          * left it up
 580                          */
 581                         eth_halt();
 582 #endif
 583                         arch_preboot_os();
 584                         boot_fn(BOOTM_STATE_OS_GO, argc, argv, &images);
 585                         break;
 586         }
 587
 588         return ret;
 589 }
 590
 591 /*******************************************************************/
 592 /* bootm - boot application image from image in memory */
 593 /*******************************************************************/
 594
 595 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 596 {
 597         ulong           iflag;
 598         ulong           load_end = 0;
 599         int             ret;
 600         boot_os_fn      *boot_fn;
 601 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 602         static int relocated = 0;
 603
 604         if (!relocated) {
 605                 int i;
 606
 607                 /* relocate boot function table */
 608                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
 609                         if (boot_os[i] != NULL)
 610                                 boot_os[i] += gd->reloc_off;
 611
 612                 /* relocate names of sub-command table */
 613                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
 614                         cmd_bootm_sub[i].name += gd->reloc_off;
 615
 616                 relocated = 1;
 617         }
 618 #endif
 619
 620         /* determine if we have a sub command */
 621         argc--; argv++;
 622         if (argc > 0) {
 623                 char *endp;
 624
 625                 simple_strtoul(argv[0], &endp, 16);
 626                 /* endp pointing to NULL means that argv[0] was just a
 627                  * valid number, pass it along to the normal bootm processing
 628                  *
 629                  * If endp is ':' or '#' assume a FIT identifier so pass
 630                  * along for normal processing.
 631                  *
 632                  * Right now we assume the first arg should never be '-'
 633                  */
 634                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 635                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 636         }
 637
 638         if (bootm_start(cmdtp, flag, argc, argv))
 639                 return 1;
 640
 641         /*
 642          * We have reached the point of no return: we are going to
 643          * overwrite all exception vector code, so we cannot easily
 644          * recover from any failures any more...
 645          */
 646         iflag = disable_interrupts();
 647
 648 #ifdef CONFIG_NETCONSOLE
 649         /* Stop the ethernet stack if NetConsole could have left it up */
 650         eth_halt();
 651 #endif
 652
 653 #if defined(CONFIG_CMD_USB)
 654         /*
 655          * turn off USB to prevent the host controller from writing to the
 656          * SDRAM while Linux is booting. This could happen (at least for OHCI
 657          * controller), because the HCCA (Host Controller Communication Area)
 658          * lies within the SDRAM and the host controller writes continously to
 659          * this area (as busmaster!). The HccaFrameNumber is for example
 660          * updated every 1 ms within the HCCA structure in SDRAM! For more
 661          * details see the OpenHCI specification.
 662          */
 663         usb_stop();
 664 #endif
 665
 666         ret = bootm_load_os(images.os, &load_end, 1);
 667
 668         if (ret < 0) {
 669                 if (ret == BOOTM_ERR_RESET)
 670                         do_reset(cmdtp, flag, argc, argv);
 671                 if (ret == BOOTM_ERR_OVERLAP) {
 672                         if (images.legacy_hdr_valid) {
 673                                 image_header_t *hdr;
 674                                 hdr = &images.legacy_hdr_os_copy;
 675                                 if (image_get_type(hdr) == IH_TYPE_MULTI)
 676                                         puts("WARNING: legacy format multi "
 677                                                 "component image "
 678                                                 "overwritten\n");
 679                         } else {
 680                                 puts("ERROR: new format image overwritten - "
 681                                         "must RESET the board to recover\n");
 682                                 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 683                                 do_reset(cmdtp, flag, argc, argv);
 684                         }
 685                 }
 686                 if (ret == BOOTM_ERR_UNIMPLEMENTED) {
 687                         if (iflag)
 688                                 enable_interrupts();
 689                         bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 690                         return 1;
 691                 }
 692         }
 693
 694         lmb_reserve(&images.lmb, images.os.load, (load_end - images.os.load));
 695
 696         if (images.os.type == IH_TYPE_STANDALONE) {
 697                 if (iflag)
 698                         enable_interrupts();
 699                 /* This may return when 'autostart' is 'no' */
 700                 bootm_start_standalone(iflag, argc, argv);
 701                 return 0;
 702         }
 703
 704         bootstage_mark(BOOTSTAGE_ID_CHECK_BOOT_OS);
 705
 706 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
 707         if (images.os.os == IH_OS_LINUX)
 708                 fixup_silent_linux();
 709 #endif
 710
 711         boot_fn = boot_os[images.os.os];
 712
 713         if (boot_fn == NULL) {
 714                 if (iflag)
 715                         enable_interrupts();
 716                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 717                         genimg_get_os_name(images.os.os), images.os.os);
 718                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 719                 return 1;
 720         }
 721
 722         arch_preboot_os();
 723
 724         boot_fn(0, argc, argv, &images);
 725
 726         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
 727 #ifdef DEBUG
 728         puts("\n## Control returned to monitor - resetting...\n");
 729 #endif
 730         do_reset(cmdtp, flag, argc, argv);
 731
 732         return 1;
 733 }
 734
 735 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
 736 {
 737         const char *ep = getenv("autostart");
 738
 739         if (ep && !strcmp(ep, "yes")) {
 740                 char *local_args[2];
 741                 local_args[0] = (char *)cmd;
 742                 local_args[1] = NULL;
 743                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
 744                 return do_bootm(cmdtp, 0, 1, local_args);
 745         }
 746
 747         return 0;
 748 }
 749
 750 /**
 751  * image_get_kernel - verify legacy format kernel image
 752  * @img_addr: in RAM address of the legacy format image to be verified
 753  * @verify: data CRC verification flag
 754  *
 755  * image_get_kernel() verifies legacy image integrity and returns pointer to
 756  * legacy image header if image verification was completed successfully.
 757  *
 758  * returns:
 759  *     pointer to a legacy image header if valid image was found
 760  *     otherwise return NULL
 761  */
 762 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 763 {
 764         image_header_t *hdr = (image_header_t *)img_addr;
 765
 766         if (!image_check_magic(hdr)) {
 767                 puts("Bad Magic Number\n");
 768                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 769                 return NULL;
 770         }
 771         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 772
 773         if (!image_check_hcrc(hdr)) {
 774                 puts("Bad Header Checksum\n");
 775                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 776                 return NULL;
 777         }
 778
 779         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 780         image_print_contents(hdr);
 781
 782         if (verify) {
 783                 puts("   Verifying Checksum ... ");
 784                 if (!image_check_dcrc(hdr)) {
 785                         printf("Bad Data CRC\n");
 786                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 787                         return NULL;
 788                 }
 789                 puts("OK\n");
 790         }
 791         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 792
 793         if (!image_check_target_arch(hdr)) {
 794                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 795                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 796                 return NULL;
 797         }
 798         return hdr;
 799 }
 800
 801 /**
 802  * boot_get_kernel - find kernel image
 803  * @os_data: pointer to a ulong variable, will hold os data start address
 804  * @os_len: pointer to a ulong variable, will hold os data length
 805  *
 806  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 807  * and locates kernel data.
 808  *
 809  * returns:
 810  *     pointer to image header if valid image was found, plus kernel start
 811  *     address and length, otherwise NULL
 812  */
 813 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 814                 char * const argv[], bootm_headers_t *images, ulong *os_data,
 815                 ulong *os_len)
 816 {
 817         image_header_t  *hdr;
 818         ulong           img_addr;
 819         const void *buf;
 820 #if defined(CONFIG_FIT)
 821         const char      *fit_uname_config = NULL;
 822         const char      *fit_uname_kernel = NULL;
 823         int             os_noffset;
 824 #endif
 825
 826         /* find out kernel image address */
 827         if (argc < 1) {
 828                 img_addr = load_addr;
 829                 debug("*  kernel: default image load address = 0x%08lx\n",
 830                                 load_addr);
 831 #if defined(CONFIG_FIT)
 832         } else if (fit_parse_conf(argv[0], load_addr, &img_addr,
 833                                                         &fit_uname_config)) {
 834                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
 835                                 fit_uname_config, img_addr);
 836         } else if (fit_parse_subimage(argv[0], load_addr, &img_addr,
 837                                                         &fit_uname_kernel)) {
 838                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
 839                                 fit_uname_kernel, img_addr);
 840 #endif
 841         } else {
 842                 img_addr = simple_strtoul(argv[0], NULL, 16);
 843                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 844         }
 845
 846         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 847
 848         /* copy from dataflash if needed */
 849         img_addr = genimg_get_image(img_addr);
 850
 851         /* check image type, for FIT images get FIT kernel node */
 852         *os_data = *os_len = 0;
 853         buf = map_sysmem(img_addr, 0);
 854         switch (genimg_get_format(buf)) {
 855         case IMAGE_FORMAT_LEGACY:
 856                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 857                                 img_addr);
 858                 hdr = image_get_kernel(img_addr, images->verify);
 859                 if (!hdr)
 860                         return NULL;
 861                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 862
 863                 /* get os_data and os_len */
 864                 switch (image_get_type(hdr)) {
 865                 case IH_TYPE_KERNEL:
 866                 case IH_TYPE_KERNEL_NOLOAD:
 867                         *os_data = image_get_data(hdr);
 868                         *os_len = image_get_data_size(hdr);
 869                         break;
 870                 case IH_TYPE_MULTI:
 871                         image_multi_getimg(hdr, 0, os_data, os_len);
 872                         break;
 873                 case IH_TYPE_STANDALONE:
 874                         *os_data = image_get_data(hdr);
 875                         *os_len = image_get_data_size(hdr);
 876                         break;
 877                 default:
 878                         printf("Wrong Image Type for %s command\n",
 879                                 cmdtp->name);
 880                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 881                         return NULL;
 882                 }
 883
 884                 /*
 885                  * copy image header to allow for image overwrites during
 886                  * kernel decompression.
 887                  */
 888                 memmove(&images->legacy_hdr_os_copy, hdr,
 889                         sizeof(image_header_t));
 890
 891                 /* save pointer to image header */
 892                 images->legacy_hdr_os = hdr;
 893
 894                 images->legacy_hdr_valid = 1;
 895                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 896                 break;
 897 #if defined(CONFIG_FIT)
 898         case IMAGE_FORMAT_FIT:
 899                 os_noffset = fit_image_load(images, FIT_KERNEL_PROP,
 900                                 img_addr,
 901                                 &fit_uname_kernel, fit_uname_config,
 902                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
 903                                 BOOTSTAGE_ID_FIT_KERNEL_START,
 904                                 FIT_LOAD_IGNORED, os_data, os_len);
 905                 if (os_noffset < 0)
 906                         return NULL;
 907
 908                 images->fit_hdr_os = map_sysmem(img_addr, 0);
 909                 images->fit_uname_os = fit_uname_kernel;
 910                 images->fit_noffset_os = os_noffset;
 911                 break;
 912 #endif
 913         default:
 914                 printf("Wrong Image Format for %s command\n", cmdtp->name);
 915                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
 916                 return NULL;
 917         }
 918
 919         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
 920                         *os_data, *os_len, *os_len);
 921
 922         return buf;
 923 }
 924
 925 #ifdef CONFIG_SYS_LONGHELP
 926 static char bootm_help_text[] =
 927         "[addr [arg ...]]\n    - boot application image stored in memory\n"
 928         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
 929         "\t'arg' can be the address of an initrd image\n"
 930 #if defined(CONFIG_OF_LIBFDT)
 931         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
 932         "\ta third argument is required which is the address of the\n"
 933         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
 934         "\tuse a '-' for the second argument. If you do not pass a third\n"
 935         "\ta bd_info struct will be passed instead\n"
 936 #endif
 937 #if defined(CONFIG_FIT)
 938         "\t\nFor the new multi component uImage format (FIT) addresses\n"
 939         "\tmust be extened to include component or configuration unit name:\n"
 940         "\taddr:<subimg_uname> - direct component image specification\n"
 941         "\taddr#<conf_uname>   - configuration specification\n"
 942         "\tUse iminfo command to get the list of existing component\n"
 943         "\timages and configurations.\n"
 944 #endif
 945         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
 946         "must be\n"
 947         "issued in the order below (it's ok to not issue all sub-commands):\n"
 948         "\tstart [addr [arg ...]]\n"
 949         "\tloados  - load OS image\n"
 950 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
 951         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
 952 #endif
 953 #if defined(CONFIG_OF_LIBFDT)
 954         "\tfdt     - relocate flat device tree\n"
 955 #endif
 956         "\tcmdline - OS specific command line processing/setup\n"
 957         "\tbdt     - OS specific bd_t processing\n"
 958         "\tprep    - OS specific prep before relocation or go\n"
 959         "\tgo      - start OS";
 960 #endif
 961
 962 U_BOOT_CMD(
 963         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
 964         "boot application image from memory", bootm_help_text
 965 );
 966
 967 /*******************************************************************/
 968 /* bootd - boot default image */
 969 /*******************************************************************/
 970 #if defined(CONFIG_CMD_BOOTD)
 971 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 972 {
 973         int rcode = 0;
 974
 975         if (run_command(getenv("bootcmd"), flag) < 0)
 976                 rcode = 1;
 977         return rcode;
 978 }
 979
 980 U_BOOT_CMD(
 981         boot,   1,      1,      do_bootd,
 982         "boot default, i.e., run 'bootcmd'",
 983         ""
 984 );
 985
 986 /* keep old command name "bootd" for backward compatibility */
 987 U_BOOT_CMD(
 988         bootd, 1,       1,      do_bootd,
 989         "boot default, i.e., run 'bootcmd'",
 990         ""
 991 );
 992
 993 #endif
 994
 995
 996 /*******************************************************************/
 997 /* iminfo - print header info for a requested image */
 998 /*******************************************************************/
 999 #if defined(CONFIG_CMD_IMI)
1000 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1001 {
1002         int     arg;
1003         ulong   addr;
1004         int     rcode = 0;
1005
1006         if (argc < 2) {
1007                 return image_info(load_addr);
1008         }
1009
1010         for (arg = 1; arg < argc; ++arg) {
1011                 addr = simple_strtoul(argv[arg], NULL, 16);
1012                 if (image_info(addr) != 0)
1013                         rcode = 1;
1014         }
1015         return rcode;
1016 }
1017
1018 static int image_info(ulong addr)
1019 {
1020         void *hdr = (void *)addr;
1021
1022         printf("\n## Checking Image at %08lx ...\n", addr);
1023
1024         switch (genimg_get_format(hdr)) {
1025         case IMAGE_FORMAT_LEGACY:
1026                 puts("   Legacy image found\n");
1027                 if (!image_check_magic(hdr)) {
1028                         puts("   Bad Magic Number\n");
1029                         return 1;
1030                 }
1031
1032                 if (!image_check_hcrc(hdr)) {
1033                         puts("   Bad Header Checksum\n");
1034                         return 1;
1035                 }
1036
1037                 image_print_contents(hdr);
1038
1039                 puts("   Verifying Checksum ... ");
1040                 if (!image_check_dcrc(hdr)) {
1041                         puts("   Bad Data CRC\n");
1042                         return 1;
1043                 }
1044                 puts("OK\n");
1045                 return 0;
1046 #if defined(CONFIG_FIT)
1047         case IMAGE_FORMAT_FIT:
1048                 puts("   FIT image found\n");
1049
1050                 if (!fit_check_format(hdr)) {
1051                         puts("Bad FIT image format!\n");
1052                         return 1;
1053                 }
1054
1055                 fit_print_contents(hdr);
1056
1057                 if (!fit_all_image_verify(hdr)) {
1058                         puts("Bad hash in FIT image!\n");
1059                         return 1;
1060                 }
1061
1062                 return 0;
1063 #endif
1064         default:
1065                 puts("Unknown image format!\n");
1066                 break;
1067         }
1068
1069         return 1;
1070 }
1071
1072 U_BOOT_CMD(
1073         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1074         "print header information for application image",
1075         "addr [addr ...]\n"
1076         "    - print header information for application image starting at\n"
1077         "      address 'addr' in memory; this includes verification of the\n"
1078         "      image contents (magic number, header and payload checksums)"
1079 );
1080 #endif
1081
1082
1083 /*******************************************************************/
1084 /* imls - list all images found in flash */
1085 /*******************************************************************/
1086 #if defined(CONFIG_CMD_IMLS)
1087 static int do_imls_nor(void)
1088 {
1089         flash_info_t *info;
1090         int i, j;
1091         void *hdr;
1092
1093         for (i = 0, info = &flash_info[0];
1094                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1095
1096                 if (info->flash_id == FLASH_UNKNOWN)
1097                         goto next_bank;
1098                 for (j = 0; j < info->sector_count; ++j) {
1099
1100                         hdr = (void *)info->start[j];
1101                         if (!hdr)
1102                                 goto next_sector;
1103
1104                         switch (genimg_get_format(hdr)) {
1105                         case IMAGE_FORMAT_LEGACY:
1106                                 if (!image_check_hcrc(hdr))
1107                                         goto next_sector;
1108
1109                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1110                                 image_print_contents(hdr);
1111
1112                                 puts("   Verifying Checksum ... ");
1113                                 if (!image_check_dcrc(hdr)) {
1114                                         puts("Bad Data CRC\n");
1115                                 } else {
1116                                         puts("OK\n");
1117                                 }
1118                                 break;
1119 #if defined(CONFIG_FIT)
1120                         case IMAGE_FORMAT_FIT:
1121                                 if (!fit_check_format(hdr))
1122                                         goto next_sector;
1123
1124                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1125                                 fit_print_contents(hdr);
1126                                 break;
1127 #endif
1128                         default:
1129                                 goto next_sector;
1130                         }
1131
1132 next_sector:            ;
1133                 }
1134 next_bank:      ;
1135         }
1136         return 0;
1137 }
1138 #endif
1139
1140 #if defined(CONFIG_CMD_IMLS_NAND)
1141 static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
1142                 size_t len)
1143 {
1144         void *imgdata;
1145         int ret;
1146
1147         imgdata = malloc(len);
1148         if (!imgdata) {
1149                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
1150                                 nand_dev, off);
1151                 printf("   Low memory(cannot allocate memory for image)\n");
1152                 return -ENOMEM;
1153         }
1154
1155         ret = nand_read_skip_bad(nand, off, &len,
1156                         imgdata);
1157         if (ret < 0 && ret != -EUCLEAN) {
1158                 free(imgdata);
1159                 return ret;
1160         }
1161
1162         if (!image_check_hcrc(imgdata)) {
1163                 free(imgdata);
1164                 return 0;
1165         }
1166
1167         printf("Legacy Image at NAND device %d offset %08llX:\n",
1168                         nand_dev, off);
1169         image_print_contents(imgdata);
1170
1171         puts("   Verifying Checksum ... ");
1172         if (!image_check_dcrc(imgdata))
1173                 puts("Bad Data CRC\n");
1174         else
1175                 puts("OK\n");
1176
1177         free(imgdata);
1178
1179         return 0;
1180 }
1181
1182 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
1183                 size_t len)
1184 {
1185         void *imgdata;
1186         int ret;
1187
1188         imgdata = malloc(len);
1189         if (!imgdata) {
1190                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
1191                                 nand_dev, off);
1192                 printf("   Low memory(cannot allocate memory for image)\n");
1193                 return -ENOMEM;
1194         }
1195
1196         ret = nand_read_skip_bad(nand, off, &len,
1197                         imgdata);
1198         if (ret < 0 && ret != -EUCLEAN) {
1199                 free(imgdata);
1200                 return ret;
1201         }
1202
1203         if (!fit_check_format(imgdata)) {
1204                 free(imgdata);
1205                 return 0;
1206         }
1207
1208         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
1209
1210         fit_print_contents(imgdata);
1211         free(imgdata);
1212
1213         return 0;
1214 }
1215
1216 static int do_imls_nand(void)
1217 {
1218         nand_info_t *nand;
1219         int nand_dev = nand_curr_device;
1220         size_t len;
1221         loff_t off;
1222         u32 buffer[16];
1223
1224         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
1225                 puts("\nNo NAND devices available\n");
1226                 return -ENODEV;
1227         }
1228
1229         printf("\n");
1230
1231         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
1232                 nand = &nand_info[nand_dev];
1233                 if (!nand->name || !nand->size)
1234                         continue;
1235
1236                 for (off = 0; off < nand->size; off += nand->erasesize) {
1237                         const image_header_t *header;
1238                         int ret;
1239
1240                         if (nand_block_isbad(nand, off))
1241                                 continue;
1242
1243                         len = sizeof(buffer);
1244
1245                         ret = nand_read(nand, off, &len, (u8 *)buffer);
1246                         if (ret < 0 && ret != -EUCLEAN) {
1247                                 printf("NAND read error %d at offset %08llX\n",
1248                                                 ret, off);
1249                                 continue;
1250                         }
1251
1252                         switch (genimg_get_format(buffer)) {
1253                         case IMAGE_FORMAT_LEGACY:
1254                                 header = (const image_header_t *)buffer;
1255
1256                                 len = image_get_image_size(header);
1257                                 nand_imls_legacyimage(nand, nand_dev, off, len);
1258                                 break;
1259 #if defined(CONFIG_FIT)
1260                         case IMAGE_FORMAT_FIT:
1261                                 len = fit_get_size(buffer);
1262                                 nand_imls_fitimage(nand, nand_dev, off, len);
1263                                 break;
1264 #endif
1265                         }
1266                 }
1267         }
1268
1269         return 0;
1270 }
1271 #endif
1272
1273 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
1274 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1275 {
1276         int ret_nor = 0, ret_nand = 0;
1277
1278 #if defined(CONFIG_CMD_IMLS)
1279         ret_nor = do_imls_nor();
1280 #endif
1281
1282 #if defined(CONFIG_CMD_IMLS_NAND)
1283         ret_nand = do_imls_nand();
1284 #endif
1285
1286         if (ret_nor)
1287                 return ret_nor;
1288
1289         if (ret_nand)
1290                 return ret_nand;
1291
1292         return (0);
1293 }
1294
1295 U_BOOT_CMD(
1296         imls,   1,              1,      do_imls,
1297         "list all images found in flash",
1298         "\n"
1299         "    - Prints information about all images found at sector/block\n"
1300         "      boundaries in nor/nand flash."
1301 );
1302 #endif
1303
1304 /*******************************************************************/
1305 /* helper routines */
1306 /*******************************************************************/
1307 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1308
1309 #define CONSOLE_ARG     "console="
1310 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
1311
1312 static void fixup_silent_linux(void)
1313 {
1314         char *buf;
1315         const char *env_val;
1316         char *cmdline = getenv("bootargs");
1317
1318         /* Only fix cmdline when requested */
1319         if (!(gd->flags & GD_FLG_SILENT))
1320                 return;
1321
1322         debug("before silent fix-up: %s\n", cmdline);
1323         if (cmdline && (cmdline[0] != '\0')) {
1324                 char *start = strstr(cmdline, CONSOLE_ARG);
1325
1326                 /* Allocate space for maximum possible new command line */
1327                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
1328                 if (!buf) {
1329                         debug("%s: out of memory\n", __func__);
1330                         return;
1331                 }
1332
1333                 if (start) {
1334                         char *end = strchr(start, ' ');
1335                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
1336
1337                         strncpy(buf, cmdline, num_start_bytes);
1338                         if (end)
1339                                 strcpy(buf + num_start_bytes, end);
1340                         else
1341                                 buf[num_start_bytes] = '\0';
1342                 } else {
1343                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
1344                 }
1345                 env_val = buf;
1346         } else {
1347                 buf = NULL;
1348                 env_val = CONSOLE_ARG;
1349         }
1350
1351         setenv("bootargs", env_val);
1352         debug("after silent fix-up: %s\n", env_val);
1353         free(buf);
1354 }
1355 #endif /* CONFIG_SILENT_CONSOLE */
1356
1357
1358 /*******************************************************************/
1359 /* OS booting routines */
1360 /*******************************************************************/
1361
1362 #ifdef CONFIG_BOOTM_NETBSD
1363 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1364                             bootm_headers_t *images)
1365 {
1366         void (*loader)(bd_t *, image_header_t *, char *, char *);
1367         image_header_t *os_hdr, *hdr;
1368         ulong kernel_data, kernel_len;
1369         char *consdev;
1370         char *cmdline;
1371
1372         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1373                 return 1;
1374
1375 #if defined(CONFIG_FIT)
1376         if (!images->legacy_hdr_valid) {
1377                 fit_unsupported_reset("NetBSD");
1378                 return 1;
1379         }
1380 #endif
1381         hdr = images->legacy_hdr_os;
1382
1383         /*
1384          * Booting a (NetBSD) kernel image
1385          *
1386          * This process is pretty similar to a standalone application:
1387          * The (first part of an multi-) image must be a stage-2 loader,
1388          * which in turn is responsible for loading & invoking the actual
1389          * kernel.  The only differences are the parameters being passed:
1390          * besides the board info strucure, the loader expects a command
1391          * line, the name of the console device, and (optionally) the
1392          * address of the original image header.
1393          */
1394         os_hdr = NULL;
1395         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1396                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1397                 if (kernel_len)
1398                         os_hdr = hdr;
1399         }
1400
1401         consdev = "";
1402 #if   defined(CONFIG_8xx_CONS_SMC1)
1403         consdev = "smc1";
1404 #elif defined(CONFIG_8xx_CONS_SMC2)
1405         consdev = "smc2";
1406 #elif defined(CONFIG_8xx_CONS_SCC2)
1407         consdev = "scc2";
1408 #elif defined(CONFIG_8xx_CONS_SCC3)
1409         consdev = "scc3";
1410 #endif
1411
1412         if (argc > 0) {
1413                 ulong len;
1414                 int   i;
1415
1416                 for (i = 0, len = 0; i < argc; i += 1)
1417                         len += strlen(argv[i]) + 1;
1418                 cmdline = malloc(len);
1419
1420                 for (i = 0, len = 0; i < argc; i += 1) {
1421                         if (i > 0)
1422                                 cmdline[len++] = ' ';
1423                         strcpy(&cmdline[len], argv[i]);
1424                         len += strlen(argv[i]);
1425                 }
1426         } else if ((cmdline = getenv("bootargs")) == NULL) {
1427                 cmdline = "";
1428         }
1429
1430         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1431
1432         printf("## Transferring control to NetBSD stage-2 loader "
1433                 "(at address %08lx) ...\n",
1434                 (ulong)loader);
1435
1436         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1437
1438         /*
1439          * NetBSD Stage-2 Loader Parameters:
1440          *   r3: ptr to board info data
1441          *   r4: image address
1442          *   r5: console device
1443          *   r6: boot args string
1444          */
1445         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1446
1447         return 1;
1448 }
1449 #endif /* CONFIG_BOOTM_NETBSD*/
1450
1451 #ifdef CONFIG_LYNXKDI
1452 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1453                              bootm_headers_t *images)
1454 {
1455         image_header_t *hdr = &images->legacy_hdr_os_copy;
1456
1457         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1458                 return 1;
1459
1460 #if defined(CONFIG_FIT)
1461         if (!images->legacy_hdr_valid) {
1462                 fit_unsupported_reset("Lynx");
1463                 return 1;
1464         }
1465 #endif
1466
1467         lynxkdi_boot((image_header_t *)hdr);
1468
1469         return 1;
1470 }
1471 #endif /* CONFIG_LYNXKDI */
1472
1473 #ifdef CONFIG_BOOTM_RTEMS
1474 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1475                            bootm_headers_t *images)
1476 {
1477         void (*entry_point)(bd_t *);
1478
1479         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1480                 return 1;
1481
1482 #if defined(CONFIG_FIT)
1483         if (!images->legacy_hdr_valid) {
1484                 fit_unsupported_reset("RTEMS");
1485                 return 1;
1486         }
1487 #endif
1488
1489         entry_point = (void (*)(bd_t *))images->ep;
1490
1491         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1492                 (ulong)entry_point);
1493
1494         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1495
1496         /*
1497          * RTEMS Parameters:
1498          *   r3: ptr to board info data
1499          */
1500         (*entry_point)(gd->bd);
1501
1502         return 1;
1503 }
1504 #endif /* CONFIG_BOOTM_RTEMS */
1505
1506 #if defined(CONFIG_BOOTM_OSE)
1507 static int do_bootm_ose(int flag, int argc, char * const argv[],
1508                            bootm_headers_t *images)
1509 {
1510         void (*entry_point)(void);
1511
1512         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1513                 return 1;
1514
1515 #if defined(CONFIG_FIT)
1516         if (!images->legacy_hdr_valid) {
1517                 fit_unsupported_reset("OSE");
1518                 return 1;
1519         }
1520 #endif
1521
1522         entry_point = (void (*)(void))images->ep;
1523
1524         printf("## Transferring control to OSE (at address %08lx) ...\n",
1525                 (ulong)entry_point);
1526
1527         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1528
1529         /*
1530          * OSE Parameters:
1531          *   None
1532          */
1533         (*entry_point)();
1534
1535         return 1;
1536 }
1537 #endif /* CONFIG_BOOTM_OSE */
1538
1539 #if defined(CONFIG_BOOTM_PLAN9)
1540 static int do_bootm_plan9(int flag, int argc, char * const argv[],
1541                            bootm_headers_t *images)
1542 {
1543         void (*entry_point)(void);
1544
1545         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1546                 return 1;
1547
1548 #if defined(CONFIG_FIT)
1549         if (!images->legacy_hdr_valid) {
1550                 fit_unsupported_reset("Plan 9");
1551                 return 1;
1552         }
1553 #endif
1554
1555         entry_point = (void (*)(void))images->ep;
1556
1557         printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
1558                 (ulong)entry_point);
1559
1560         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1561
1562         /*
1563          * Plan 9 Parameters:
1564          *   None
1565          */
1566         (*entry_point)();
1567
1568         return 1;
1569 }
1570 #endif /* CONFIG_BOOTM_PLAN9 */
1571
1572 #if defined(CONFIG_CMD_ELF)
1573 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1574                              bootm_headers_t *images)
1575 {
1576         char str[80];
1577
1578         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1579                 return 1;
1580
1581 #if defined(CONFIG_FIT)
1582         if (!images->legacy_hdr_valid) {
1583                 fit_unsupported_reset("VxWorks");
1584                 return 1;
1585         }
1586 #endif
1587
1588         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1589         setenv("loadaddr", str);
1590         do_bootvx(NULL, 0, 0, NULL);
1591
1592         return 1;
1593 }
1594
1595 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1596                             bootm_headers_t *images)
1597 {
1598         char *local_args[2];
1599         char str[16];
1600
1601         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1602                 return 1;
1603
1604 #if defined(CONFIG_FIT)
1605         if (!images->legacy_hdr_valid) {
1606                 fit_unsupported_reset("QNX");
1607                 return 1;
1608         }
1609 #endif
1610
1611         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1612         local_args[0] = argv[0];
1613         local_args[1] = str;    /* and provide it via the arguments */
1614         do_bootelf(NULL, 0, 2, local_args);
1615
1616         return 1;
1617 }
1618 #endif
1619
1620 #ifdef CONFIG_INTEGRITY
1621 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1622                            bootm_headers_t *images)
1623 {
1624         void (*entry_point)(void);
1625
1626         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1627                 return 1;
1628
1629 #if defined(CONFIG_FIT)
1630         if (!images->legacy_hdr_valid) {
1631                 fit_unsupported_reset("INTEGRITY");
1632                 return 1;
1633         }
1634 #endif
1635
1636         entry_point = (void (*)(void))images->ep;
1637
1638         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1639                 (ulong)entry_point);
1640
1641         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1642
1643         /*
1644          * INTEGRITY Parameters:
1645          *   None
1646          */
1647         (*entry_point)();
1648
1649         return 1;
1650 }
1651 #endif
1652
1653 #ifdef CONFIG_CMD_BOOTZ
1654
1655 static int __bootz_setup(void *image, void **start, void **end)
1656 {
1657         /* Please define bootz_setup() for your platform */
1658
1659         puts("Your platform's zImage format isn't supported yet!\n");
1660         return -1;
1661 }
1662 int bootz_setup(void *image, void **start, void **end)
1663         __attribute__((weak, alias("__bootz_setup")));
1664
1665 /*
1666  * zImage booting support
1667  */
1668 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1669                         char * const argv[], bootm_headers_t *images)
1670 {
1671         int ret;
1672         void *zi_start, *zi_end;
1673
1674         memset(images, 0, sizeof(bootm_headers_t));
1675
1676         boot_start_lmb(images);
1677
1678         /* Setup Linux kernel zImage entry point */
1679         if (argc < 2) {
1680                 images->ep = load_addr;
1681                 debug("*  kernel: default image load address = 0x%08lx\n",
1682                                 load_addr);
1683         } else {
1684                 images->ep = simple_strtoul(argv[1], NULL, 16);
1685                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1686                         images->ep);
1687         }
1688
1689         ret = bootz_setup((void *)images->ep, &zi_start, &zi_end);
1690         if (ret != 0)
1691                 return 1;
1692
1693         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1694
1695         /* Find ramdisk */
1696         ret = boot_get_ramdisk(argc, argv, images, IH_INITRD_ARCH,
1697                         &images->rd_start, &images->rd_end);
1698         if (ret) {
1699                 puts("Ramdisk image is corrupt or invalid\n");
1700                 return 1;
1701         }
1702
1703 #if defined(CONFIG_OF_LIBFDT)
1704         /* find flattened device tree */
1705         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, images,
1706                            &images->ft_addr, &images->ft_len);
1707         if (ret) {
1708                 puts("Could not find a valid device tree\n");
1709                 return 1;
1710         }
1711
1712         set_working_fdt_addr(images->ft_addr);
1713 #endif
1714
1715         return 0;
1716 }
1717
1718 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1719 {
1720         bootm_headers_t images;
1721
1722         if (bootz_start(cmdtp, flag, argc, argv, &images))
1723                 return 1;
1724
1725         /*
1726          * We have reached the point of no return: we are going to
1727          * overwrite all exception vector code, so we cannot easily
1728          * recover from any failures any more...
1729          */
1730         disable_interrupts();
1731
1732 #ifdef CONFIG_NETCONSOLE
1733         /* Stop the ethernet stack if NetConsole could have left it up */
1734         eth_halt();
1735 #endif
1736
1737 #if defined(CONFIG_CMD_USB)
1738         /*
1739          * turn off USB to prevent the host controller from writing to the
1740          * SDRAM while Linux is booting. This could happen (at least for OHCI
1741          * controller), because the HCCA (Host Controller Communication Area)
1742          * lies within the SDRAM and the host controller writes continously to
1743          * this area (as busmaster!). The HccaFrameNumber is for example
1744          * updated every 1 ms within the HCCA structure in SDRAM! For more
1745          * details see the OpenHCI specification.
1746          */
1747         usb_stop();
1748 #endif
1749
1750 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1751         fixup_silent_linux();
1752 #endif
1753         arch_preboot_os();
1754
1755         do_bootm_linux(0, argc, argv, &images);
1756 #ifdef DEBUG
1757         puts("\n## Control returned to monitor - resetting...\n");
1758 #endif
1759         do_reset(cmdtp, flag, argc, argv);
1760
1761         return 1;
1762 }
1763
1764 #ifdef CONFIG_SYS_LONGHELP
1765 static char bootz_help_text[] =
1766         "[addr [initrd[:size]] [fdt]]\n"
1767         "    - boot Linux zImage stored in memory\n"
1768         "\tThe argument 'initrd' is optional and specifies the address\n"
1769         "\tof the initrd in memory. The optional argument ':size' allows\n"
1770         "\tspecifying the size of RAW initrd.\n"
1771 #if defined(CONFIG_OF_LIBFDT)
1772         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1773         "\ta third argument is required which is the address of the\n"
1774         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1775         "\tuse a '-' for the second argument. If you do not pass a third\n"
1776         "\ta bd_info struct will be passed instead\n"
1777 #endif
1778         "";
1779 #endif
1780
1781 U_BOOT_CMD(
1782         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1783         "boot Linux zImage image from memory", bootz_help_text
1784 );
1785 #endif  /* CONFIG_CMD_BOOTZ */