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