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(bootm_headers_t *images, unsigned long *load_end,
 349                 int boot_progress)
 350 {
 351         image_info_t os = images->os;
 352         uint8_t comp = os.comp;
 353         ulong load = os.load;
 354         ulong blob_start = os.start;
 355         ulong blob_end = os.end;
 356         ulong image_start = os.image_start;
 357         ulong image_len = os.image_len;
 358         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 359         int no_overlap = 0;
 360         void *load_buf, *image_buf;
 361 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 362         int ret;
 363 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 364
 365         const char *type_name = genimg_get_type_name(os.type);
 366
 367         load_buf = map_sysmem(load, image_len);
 368         image_buf = map_sysmem(image_start, image_len);
 369         switch (comp) {
 370         case IH_COMP_NONE:
 371                 if (load == blob_start || load == image_start) {
 372                         printf("   XIP %s ... ", type_name);
 373                         no_overlap = 1;
 374                 } else {
 375                         printf("   Loading %s ... ", type_name);
 376                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
 377                 }
 378                 *load_end = load + image_len;
 379                 puts("OK\n");
 380                 break;
 381 #ifdef CONFIG_GZIP
 382         case IH_COMP_GZIP:
 383                 printf("   Uncompressing %s ... ", type_name);
 384                 if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) {
 385                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 386                                 "error - must RESET board to recover\n");
 387                         if (boot_progress)
 388                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 389                         return BOOTM_ERR_RESET;
 390                 }
 391
 392                 *load_end = load + image_len;
 393                 break;
 394 #endif /* CONFIG_GZIP */
 395 #ifdef CONFIG_BZIP2
 396         case IH_COMP_BZIP2:
 397                 printf("   Uncompressing %s ... ", type_name);
 398                 /*
 399                  * If we've got less than 4 MB of malloc() space,
 400                  * use slower decompression algorithm which requires
 401                  * at most 2300 KB of memory.
 402                  */
 403                 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
 404                         image_buf, image_len,
 405                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 406                 if (i != BZ_OK) {
 407                         printf("BUNZIP2: uncompress or overwrite error %d "
 408                                 "- must RESET board to recover\n", i);
 409                         if (boot_progress)
 410                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 411                         return BOOTM_ERR_RESET;
 412                 }
 413
 414                 *load_end = load + unc_len;
 415                 break;
 416 #endif /* CONFIG_BZIP2 */
 417 #ifdef CONFIG_LZMA
 418         case IH_COMP_LZMA: {
 419                 SizeT lzma_len = unc_len;
 420                 printf("   Uncompressing %s ... ", type_name);
 421
 422                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
 423                                                image_buf, image_len);
 424                 unc_len = lzma_len;
 425                 if (ret != SZ_OK) {
 426                         printf("LZMA: uncompress or overwrite error %d "
 427                                 "- must RESET board to recover\n", ret);
 428                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 429                         return BOOTM_ERR_RESET;
 430                 }
 431                 *load_end = load + unc_len;
 432                 break;
 433         }
 434 #endif /* CONFIG_LZMA */
 435 #ifdef CONFIG_LZO
 436         case IH_COMP_LZO:
 437                 printf("   Uncompressing %s ... ", type_name);
 438
 439                 ret = lzop_decompress(image_buf, image_len, load_buf,
 440                                       &unc_len);
 441                 if (ret != LZO_E_OK) {
 442                         printf("LZO: uncompress or overwrite error %d "
 443                               "- must RESET board to recover\n", ret);
 444                         if (boot_progress)
 445                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 446                         return BOOTM_ERR_RESET;
 447                 }
 448
 449                 *load_end = load + unc_len;
 450                 break;
 451 #endif /* CONFIG_LZO */
 452         default:
 453                 printf("Unimplemented compression type %d\n", comp);
 454                 return BOOTM_ERR_UNIMPLEMENTED;
 455         }
 456
 457         flush_cache(load, (*load_end - load) * sizeof(ulong));
 458
 459         puts("OK\n");
 460         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 461         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 462
 463         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 464                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 465                         blob_start, blob_end);
 466                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 467                         *load_end);
 468
 469                 /* Check what type of image this is. */
 470                 if (images->legacy_hdr_valid) {
 471                         if (image_get_type(&images->legacy_hdr_os_copy)
 472                                         == IH_TYPE_MULTI)
 473                                 puts("WARNING: legacy format multi component image overwritten\n");
 474                         return BOOTM_ERR_OVERLAP;
 475                 } else {
 476                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
 477                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 478                         return BOOTM_ERR_RESET;
 479                 }
 480         }
 481
 482         return 0;
 483 }
 484
 485 static int bootm_start_standalone(int argc, char * const argv[])
 486 {
 487         char  *s;
 488         int   (*appl)(int, char * const []);
 489
 490         /* Don't start if "autostart" is set to "no" */
 491         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 492                 setenv_hex("filesize", images.os.image_len);
 493                 return 0;
 494         }
 495         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
 496         (*appl)(argc, argv);
 497         return 0;
 498 }
 499
 500 /* we overload the cmd field with our state machine info instead of a
 501  * function pointer */
 502 static cmd_tbl_t cmd_bootm_sub[] = {
 503         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 504         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 505 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 506         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 507 #endif
 508 #ifdef CONFIG_OF_LIBFDT
 509         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 510 #endif
 511         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 512         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 513         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 514         U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""),
 515         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 516 };
 517
 518 static int boot_selected_os(int argc, char * const argv[], int state,
 519                 bootm_headers_t *images, boot_os_fn *boot_fn)
 520 {
 521         if (images->os.type == IH_TYPE_STANDALONE) {
 522                 /* This may return when 'autostart' is 'no' */
 523                 bootm_start_standalone(argc, argv);
 524                 return 0;
 525         }
 526 #ifdef CONFIG_SILENT_CONSOLE
 527         if (images->os.os == IH_OS_LINUX)
 528                 fixup_silent_linux();
 529 #endif
 530         arch_preboot_os();
 531         boot_fn(state, argc, argv, images);
 532         if (state == BOOTM_STATE_OS_FAKE_GO) /* We expect to return */
 533                 return 0;
 534         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
 535 #ifdef DEBUG
 536         puts("\n## Control returned to monitor - resetting...\n");
 537 #endif
 538         return BOOTM_ERR_RESET;
 539 }
 540
 541 /**
 542  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
 543  *
 544  * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
 545  *      enabled)
 546  */
 547 static ulong bootm_disable_interrupts(void)
 548 {
 549         ulong iflag;
 550
 551         /*
 552          * We have reached the point of no return: we are going to
 553          * overwrite all exception vector code, so we cannot easily
 554          * recover from any failures any more...
 555          */
 556         iflag = disable_interrupts();
 557 #ifdef CONFIG_NETCONSOLE
 558         /* Stop the ethernet stack if NetConsole could have left it up */
 559         eth_halt();
 560 #endif
 561
 562 #if defined(CONFIG_CMD_USB)
 563         /*
 564          * turn off USB to prevent the host controller from writing to the
 565          * SDRAM while Linux is booting. This could happen (at least for OHCI
 566          * controller), because the HCCA (Host Controller Communication Area)
 567          * lies within the SDRAM and the host controller writes continously to
 568          * this area (as busmaster!). The HccaFrameNumber is for example
 569          * updated every 1 ms within the HCCA structure in SDRAM! For more
 570          * details see the OpenHCI specification.
 571          */
 572         usb_stop();
 573 #endif
 574         return iflag;
 575 }
 576
 577 /**
 578  * Execute selected states of the bootm command.
 579  *
 580  * Note the arguments to this state must be the first argument, Any 'bootm'
 581  * or sub-command arguments must have already been taken.
 582  *
 583  * Note that if states contains more than one flag it MUST contain
 584  * BOOTM_STATE_START, since this handles and consumes the command line args.
 585  *
 586  * Also note that aside from boot_os_fn functions and bootm_load_os no other
 587  * functions we store the return value of in 'ret' may use a negative return
 588  * value, without special handling.
 589  *
 590  * @param cmdtp         Pointer to bootm command table entry
 591  * @param flag          Command flags (CMD_FLAG_...)
 592  * @param argc          Number of subcommand arguments (0 = no arguments)
 593  * @param argv          Arguments
 594  * @param states        Mask containing states to run (BOOTM_STATE_...)
 595  * @param images        Image header information
 596  * @param boot_progress 1 to show boot progress, 0 to not do this
 597  * @return 0 if ok, something else on error. Some errors will cause this
 598  *      function to perform a reboot! If states contains BOOTM_STATE_OS_GO
 599  *      then the intent is to boot an OS, so this function will not return
 600  *      unless the image type is standalone.
 601  */
 602 static int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc,
 603                 char * const argv[], int states, bootm_headers_t *images,
 604                 int boot_progress)
 605 {
 606         boot_os_fn *boot_fn;
 607         ulong iflag = 0;
 608         int ret = 0, need_boot_fn;
 609
 610         images->state |= states;
 611
 612         /*
 613          * Work through the states and see how far we get. We stop on
 614          * any error.
 615          */
 616         if (states & BOOTM_STATE_START)
 617                 ret = bootm_start(cmdtp, flag, argc, argv);
 618
 619         if (!ret && (states & BOOTM_STATE_FINDOS))
 620                 ret = bootm_find_os(cmdtp, flag, argc, argv);
 621
 622         if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
 623                 ret = bootm_find_other(cmdtp, flag, argc, argv);
 624                 argc = 0;       /* consume the args */
 625         }
 626
 627         /* Load the OS */
 628         if (!ret && (states & BOOTM_STATE_LOADOS)) {
 629                 ulong load_end;
 630
 631                 iflag = bootm_disable_interrupts();
 632                 ret = bootm_load_os(images, &load_end, 0);
 633                 if (ret && ret != BOOTM_ERR_OVERLAP)
 634                         goto err;
 635
 636                 if (ret == 0)
 637                         lmb_reserve(&images->lmb, images->os.load,
 638                                     (load_end - images->os.load));
 639                 else if (ret == BOOTM_ERR_OVERLAP)
 640                         ret = 0;
 641         }
 642
 643         /* Relocate the ramdisk */
 644 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 645         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
 646                 ulong rd_len = images->rd_end - images->rd_start;
 647
 648                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
 649                         rd_len, &images->initrd_start, &images->initrd_end);
 650                 if (!ret) {
 651                         setenv_hex("initrd_start", images->initrd_start);
 652                         setenv_hex("initrd_end", images->initrd_end);
 653                 }
 654         }
 655 #endif
 656 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
 657         if (!ret && (states & BOOTM_STATE_FDT)) {
 658                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
 659                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
 660                                         &images->ft_len);
 661         }
 662 #endif
 663
 664         /* From now on, we need the OS boot function */
 665         if (ret)
 666                 return ret;
 667         boot_fn = boot_os[images->os.os];
 668         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
 669                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
 670                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
 671         if (boot_fn == NULL && need_boot_fn) {
 672                 if (iflag)
 673                         enable_interrupts();
 674                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 675                        genimg_get_os_name(images->os.os), images->os.os);
 676                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 677                 return 1;
 678         }
 679
 680         /* Call various other states that are not generally used */
 681         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
 682                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
 683         if (!ret && (states & BOOTM_STATE_OS_BD_T))
 684                 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
 685         if (!ret && (states & BOOTM_STATE_OS_PREP))
 686                 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
 687
 688         /* Check for unsupported subcommand. */
 689         if (ret) {
 690                 puts("subcommand not supported\n");
 691                 return ret;
 692         }
 693
 694
 695 #ifdef CONFIG_TRACE
 696         /* Pretend to run the OS, then run a user command */
 697         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
 698                 char *cmd_list = getenv("fakegocmd");
 699
 700                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
 701                                 images, boot_fn);
 702                 if (!ret && cmd_list)
 703                         ret = run_command_list(cmd_list, -1, flag);
 704         }
 705 #endif
 706         /* Now run the OS! We hope this doesn't return */
 707         if (!ret && (states & BOOTM_STATE_OS_GO)) {
 708                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
 709                                 images, boot_fn);
 710                 if (ret)
 711                         goto err;
 712         }
 713
 714         return ret;
 715
 716         /* Deal with any fallout */
 717 err:
 718         if (iflag)
 719                 enable_interrupts();
 720
 721         if (ret == BOOTM_ERR_UNIMPLEMENTED)
 722                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 723         else if (ret == BOOTM_ERR_RESET)
 724                 do_reset(cmdtp, flag, argc, argv);
 725
 726         return ret;
 727 }
 728
 729 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 730                         char * const argv[])
 731 {
 732         int ret = 0;
 733         long state;
 734         cmd_tbl_t *c;
 735
 736         c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 737         argc--; argv++;
 738
 739         if (c) {
 740                 state = (long)c->cmd;
 741                 if (state == BOOTM_STATE_START)
 742                         state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
 743         } else {
 744                 /* Unrecognized command */
 745                 return CMD_RET_USAGE;
 746         }
 747
 748         if (state != BOOTM_STATE_START && images.state >= state) {
 749                 printf("Trying to execute a command out of order\n");
 750                 return CMD_RET_USAGE;
 751         }
 752
 753         ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
 754
 755         return ret;
 756 }
 757
 758 /*******************************************************************/
 759 /* bootm - boot application image from image in memory */
 760 /*******************************************************************/
 761
 762 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 763 {
 764 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 765         static int relocated = 0;
 766
 767         if (!relocated) {
 768                 int i;
 769
 770                 /* relocate boot function table */
 771                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
 772                         if (boot_os[i] != NULL)
 773                                 boot_os[i] += gd->reloc_off;
 774
 775                 /* relocate names of sub-command table */
 776                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
 777                         cmd_bootm_sub[i].name += gd->reloc_off;
 778
 779                 relocated = 1;
 780         }
 781 #endif
 782
 783         /* determine if we have a sub command */
 784         argc--; argv++;
 785         if (argc > 0) {
 786                 char *endp;
 787
 788                 simple_strtoul(argv[0], &endp, 16);
 789                 /* endp pointing to NULL means that argv[0] was just a
 790                  * valid number, pass it along to the normal bootm processing
 791                  *
 792                  * If endp is ':' or '#' assume a FIT identifier so pass
 793                  * along for normal processing.
 794                  *
 795                  * Right now we assume the first arg should never be '-'
 796                  */
 797                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 798                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 799         }
 800
 801         return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
 802                 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
 803                 BOOTM_STATE_LOADOS | BOOTM_STATE_OS_PREP |
 804                 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO, &images, 1);
 805 }
 806
 807 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
 808 {
 809         const char *ep = getenv("autostart");
 810
 811         if (ep && !strcmp(ep, "yes")) {
 812                 char *local_args[2];
 813                 local_args[0] = (char *)cmd;
 814                 local_args[1] = NULL;
 815                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
 816                 return do_bootm(cmdtp, 0, 1, local_args);
 817         }
 818
 819         return 0;
 820 }
 821
 822 /**
 823  * image_get_kernel - verify legacy format kernel image
 824  * @img_addr: in RAM address of the legacy format image to be verified
 825  * @verify: data CRC verification flag
 826  *
 827  * image_get_kernel() verifies legacy image integrity and returns pointer to
 828  * legacy image header if image verification was completed successfully.
 829  *
 830  * returns:
 831  *     pointer to a legacy image header if valid image was found
 832  *     otherwise return NULL
 833  */
 834 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 835 {
 836         image_header_t *hdr = (image_header_t *)img_addr;
 837
 838         if (!image_check_magic(hdr)) {
 839                 puts("Bad Magic Number\n");
 840                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 841                 return NULL;
 842         }
 843         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 844
 845         if (!image_check_hcrc(hdr)) {
 846                 puts("Bad Header Checksum\n");
 847                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 848                 return NULL;
 849         }
 850
 851         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 852         image_print_contents(hdr);
 853
 854         if (verify) {
 855                 puts("   Verifying Checksum ... ");
 856                 if (!image_check_dcrc(hdr)) {
 857                         printf("Bad Data CRC\n");
 858                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 859                         return NULL;
 860                 }
 861                 puts("OK\n");
 862         }
 863         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 864
 865         if (!image_check_target_arch(hdr)) {
 866                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 867                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 868                 return NULL;
 869         }
 870         return hdr;
 871 }
 872
 873 /**
 874  * boot_get_kernel - find kernel image
 875  * @os_data: pointer to a ulong variable, will hold os data start address
 876  * @os_len: pointer to a ulong variable, will hold os data length
 877  *
 878  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 879  * and locates kernel data.
 880  *
 881  * returns:
 882  *     pointer to image header if valid image was found, plus kernel start
 883  *     address and length, otherwise NULL
 884  */
 885 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 886                 char * const argv[], bootm_headers_t *images, ulong *os_data,
 887                 ulong *os_len)
 888 {
 889         image_header_t  *hdr;
 890         ulong           img_addr;
 891         const void *buf;
 892 #if defined(CONFIG_FIT)
 893         const char      *fit_uname_config = NULL;
 894         const char      *fit_uname_kernel = NULL;
 895         int             os_noffset;
 896 #endif
 897
 898         /* find out kernel image address */
 899         if (argc < 1) {
 900                 img_addr = load_addr;
 901                 debug("*  kernel: default image load address = 0x%08lx\n",
 902                                 load_addr);
 903 #if defined(CONFIG_FIT)
 904         } else if (fit_parse_conf(argv[0], load_addr, &img_addr,
 905                                                         &fit_uname_config)) {
 906                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
 907                                 fit_uname_config, img_addr);
 908         } else if (fit_parse_subimage(argv[0], load_addr, &img_addr,
 909                                                         &fit_uname_kernel)) {
 910                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
 911                                 fit_uname_kernel, img_addr);
 912 #endif
 913         } else {
 914                 img_addr = simple_strtoul(argv[0], NULL, 16);
 915                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 916         }
 917
 918         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 919
 920         /* copy from dataflash if needed */
 921         img_addr = genimg_get_image(img_addr);
 922
 923         /* check image type, for FIT images get FIT kernel node */
 924         *os_data = *os_len = 0;
 925         buf = map_sysmem(img_addr, 0);
 926         switch (genimg_get_format(buf)) {
 927         case IMAGE_FORMAT_LEGACY:
 928                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 929                                 img_addr);
 930                 hdr = image_get_kernel(img_addr, images->verify);
 931                 if (!hdr)
 932                         return NULL;
 933                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 934
 935                 /* get os_data and os_len */
 936                 switch (image_get_type(hdr)) {
 937                 case IH_TYPE_KERNEL:
 938                 case IH_TYPE_KERNEL_NOLOAD:
 939                         *os_data = image_get_data(hdr);
 940                         *os_len = image_get_data_size(hdr);
 941                         break;
 942                 case IH_TYPE_MULTI:
 943                         image_multi_getimg(hdr, 0, os_data, os_len);
 944                         break;
 945                 case IH_TYPE_STANDALONE:
 946                         *os_data = image_get_data(hdr);
 947                         *os_len = image_get_data_size(hdr);
 948                         break;
 949                 default:
 950                         printf("Wrong Image Type for %s command\n",
 951                                 cmdtp->name);
 952                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 953                         return NULL;
 954                 }
 955
 956                 /*
 957                  * copy image header to allow for image overwrites during
 958                  * kernel decompression.
 959                  */
 960                 memmove(&images->legacy_hdr_os_copy, hdr,
 961                         sizeof(image_header_t));
 962
 963                 /* save pointer to image header */
 964                 images->legacy_hdr_os = hdr;
 965
 966                 images->legacy_hdr_valid = 1;
 967                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 968                 break;
 969 #if defined(CONFIG_FIT)
 970         case IMAGE_FORMAT_FIT:
 971                 os_noffset = fit_image_load(images, FIT_KERNEL_PROP,
 972                                 img_addr,
 973                                 &fit_uname_kernel, fit_uname_config,
 974                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
 975                                 BOOTSTAGE_ID_FIT_KERNEL_START,
 976                                 FIT_LOAD_IGNORED, os_data, os_len);
 977                 if (os_noffset < 0)
 978                         return NULL;
 979
 980                 images->fit_hdr_os = map_sysmem(img_addr, 0);
 981                 images->fit_uname_os = fit_uname_kernel;
 982                 images->fit_noffset_os = os_noffset;
 983                 break;
 984 #endif
 985         default:
 986                 printf("Wrong Image Format for %s command\n", cmdtp->name);
 987                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
 988                 return NULL;
 989         }
 990
 991         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
 992                         *os_data, *os_len, *os_len);
 993
 994         return buf;
 995 }
 996
 997 #ifdef CONFIG_SYS_LONGHELP
 998 static char bootm_help_text[] =
 999         "[addr [arg ...]]\n    - boot application image stored in memory\n"
1000         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
1001         "\t'arg' can be the address of an initrd image\n"
1002 #if defined(CONFIG_OF_LIBFDT)
1003         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1004         "\ta third argument is required which is the address of the\n"
1005         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1006         "\tuse a '-' for the second argument. If you do not pass a third\n"
1007         "\ta bd_info struct will be passed instead\n"
1008 #endif
1009 #if defined(CONFIG_FIT)
1010         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1011         "\tmust be extened to include component or configuration unit name:\n"
1012         "\taddr:<subimg_uname> - direct component image specification\n"
1013         "\taddr#<conf_uname>   - configuration specification\n"
1014         "\tUse iminfo command to get the list of existing component\n"
1015         "\timages and configurations.\n"
1016 #endif
1017         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1018         "must be\n"
1019         "issued in the order below (it's ok to not issue all sub-commands):\n"
1020         "\tstart [addr [arg ...]]\n"
1021         "\tloados  - load OS image\n"
1022 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
1023         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1024 #endif
1025 #if defined(CONFIG_OF_LIBFDT)
1026         "\tfdt     - relocate flat device tree\n"
1027 #endif
1028         "\tcmdline - OS specific command line processing/setup\n"
1029         "\tbdt     - OS specific bd_t processing\n"
1030         "\tprep    - OS specific prep before relocation or go\n"
1031         "\tgo      - start OS";
1032 #endif
1033
1034 U_BOOT_CMD(
1035         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1036         "boot application image from memory", bootm_help_text
1037 );
1038
1039 /*******************************************************************/
1040 /* bootd - boot default image */
1041 /*******************************************************************/
1042 #if defined(CONFIG_CMD_BOOTD)
1043 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1044 {
1045         int rcode = 0;
1046
1047         if (run_command(getenv("bootcmd"), flag) < 0)
1048                 rcode = 1;
1049         return rcode;
1050 }
1051
1052 U_BOOT_CMD(
1053         boot,   1,      1,      do_bootd,
1054         "boot default, i.e., run 'bootcmd'",
1055         ""
1056 );
1057
1058 /* keep old command name "bootd" for backward compatibility */
1059 U_BOOT_CMD(
1060         bootd, 1,       1,      do_bootd,
1061         "boot default, i.e., run 'bootcmd'",
1062         ""
1063 );
1064
1065 #endif
1066
1067
1068 /*******************************************************************/
1069 /* iminfo - print header info for a requested image */
1070 /*******************************************************************/
1071 #if defined(CONFIG_CMD_IMI)
1072 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1073 {
1074         int     arg;
1075         ulong   addr;
1076         int     rcode = 0;
1077
1078         if (argc < 2) {
1079                 return image_info(load_addr);
1080         }
1081
1082         for (arg = 1; arg < argc; ++arg) {
1083                 addr = simple_strtoul(argv[arg], NULL, 16);
1084                 if (image_info(addr) != 0)
1085                         rcode = 1;
1086         }
1087         return rcode;
1088 }
1089
1090 static int image_info(ulong addr)
1091 {
1092         void *hdr = (void *)addr;
1093
1094         printf("\n## Checking Image at %08lx ...\n", addr);
1095
1096         switch (genimg_get_format(hdr)) {
1097         case IMAGE_FORMAT_LEGACY:
1098                 puts("   Legacy image found\n");
1099                 if (!image_check_magic(hdr)) {
1100                         puts("   Bad Magic Number\n");
1101                         return 1;
1102                 }
1103
1104                 if (!image_check_hcrc(hdr)) {
1105                         puts("   Bad Header Checksum\n");
1106                         return 1;
1107                 }
1108
1109                 image_print_contents(hdr);
1110
1111                 puts("   Verifying Checksum ... ");
1112                 if (!image_check_dcrc(hdr)) {
1113                         puts("   Bad Data CRC\n");
1114                         return 1;
1115                 }
1116                 puts("OK\n");
1117                 return 0;
1118 #if defined(CONFIG_FIT)
1119         case IMAGE_FORMAT_FIT:
1120                 puts("   FIT image found\n");
1121
1122                 if (!fit_check_format(hdr)) {
1123                         puts("Bad FIT image format!\n");
1124                         return 1;
1125                 }
1126
1127                 fit_print_contents(hdr);
1128
1129                 if (!fit_all_image_verify(hdr)) {
1130                         puts("Bad hash in FIT image!\n");
1131                         return 1;
1132                 }
1133
1134                 return 0;
1135 #endif
1136         default:
1137                 puts("Unknown image format!\n");
1138                 break;
1139         }
1140
1141         return 1;
1142 }
1143
1144 U_BOOT_CMD(
1145         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1146         "print header information for application image",
1147         "addr [addr ...]\n"
1148         "    - print header information for application image starting at\n"
1149         "      address 'addr' in memory; this includes verification of the\n"
1150         "      image contents (magic number, header and payload checksums)"
1151 );
1152 #endif
1153
1154
1155 /*******************************************************************/
1156 /* imls - list all images found in flash */
1157 /*******************************************************************/
1158 #if defined(CONFIG_CMD_IMLS)
1159 static int do_imls_nor(void)
1160 {
1161         flash_info_t *info;
1162         int i, j;
1163         void *hdr;
1164
1165         for (i = 0, info = &flash_info[0];
1166                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1167
1168                 if (info->flash_id == FLASH_UNKNOWN)
1169                         goto next_bank;
1170                 for (j = 0; j < info->sector_count; ++j) {
1171
1172                         hdr = (void *)info->start[j];
1173                         if (!hdr)
1174                                 goto next_sector;
1175
1176                         switch (genimg_get_format(hdr)) {
1177                         case IMAGE_FORMAT_LEGACY:
1178                                 if (!image_check_hcrc(hdr))
1179                                         goto next_sector;
1180
1181                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1182                                 image_print_contents(hdr);
1183
1184                                 puts("   Verifying Checksum ... ");
1185                                 if (!image_check_dcrc(hdr)) {
1186                                         puts("Bad Data CRC\n");
1187                                 } else {
1188                                         puts("OK\n");
1189                                 }
1190                                 break;
1191 #if defined(CONFIG_FIT)
1192                         case IMAGE_FORMAT_FIT:
1193                                 if (!fit_check_format(hdr))
1194                                         goto next_sector;
1195
1196                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1197                                 fit_print_contents(hdr);
1198                                 break;
1199 #endif
1200                         default:
1201                                 goto next_sector;
1202                         }
1203
1204 next_sector:            ;
1205                 }
1206 next_bank:      ;
1207         }
1208         return 0;
1209 }
1210 #endif
1211
1212 #if defined(CONFIG_CMD_IMLS_NAND)
1213 static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
1214                 size_t len)
1215 {
1216         void *imgdata;
1217         int ret;
1218
1219         imgdata = malloc(len);
1220         if (!imgdata) {
1221                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
1222                                 nand_dev, off);
1223                 printf("   Low memory(cannot allocate memory for image)\n");
1224                 return -ENOMEM;
1225         }
1226
1227         ret = nand_read_skip_bad(nand, off, &len,
1228                         imgdata);
1229         if (ret < 0 && ret != -EUCLEAN) {
1230                 free(imgdata);
1231                 return ret;
1232         }
1233
1234         if (!image_check_hcrc(imgdata)) {
1235                 free(imgdata);
1236                 return 0;
1237         }
1238
1239         printf("Legacy Image at NAND device %d offset %08llX:\n",
1240                         nand_dev, off);
1241         image_print_contents(imgdata);
1242
1243         puts("   Verifying Checksum ... ");
1244         if (!image_check_dcrc(imgdata))
1245                 puts("Bad Data CRC\n");
1246         else
1247                 puts("OK\n");
1248
1249         free(imgdata);
1250
1251         return 0;
1252 }
1253
1254 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
1255                 size_t len)
1256 {
1257         void *imgdata;
1258         int ret;
1259
1260         imgdata = malloc(len);
1261         if (!imgdata) {
1262                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
1263                                 nand_dev, off);
1264                 printf("   Low memory(cannot allocate memory for image)\n");
1265                 return -ENOMEM;
1266         }
1267
1268         ret = nand_read_skip_bad(nand, off, &len,
1269                         imgdata);
1270         if (ret < 0 && ret != -EUCLEAN) {
1271                 free(imgdata);
1272                 return ret;
1273         }
1274
1275         if (!fit_check_format(imgdata)) {
1276                 free(imgdata);
1277                 return 0;
1278         }
1279
1280         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
1281
1282         fit_print_contents(imgdata);
1283         free(imgdata);
1284
1285         return 0;
1286 }
1287
1288 static int do_imls_nand(void)
1289 {
1290         nand_info_t *nand;
1291         int nand_dev = nand_curr_device;
1292         size_t len;
1293         loff_t off;
1294         u32 buffer[16];
1295
1296         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
1297                 puts("\nNo NAND devices available\n");
1298                 return -ENODEV;
1299         }
1300
1301         printf("\n");
1302
1303         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
1304                 nand = &nand_info[nand_dev];
1305                 if (!nand->name || !nand->size)
1306                         continue;
1307
1308                 for (off = 0; off < nand->size; off += nand->erasesize) {
1309                         const image_header_t *header;
1310                         int ret;
1311
1312                         if (nand_block_isbad(nand, off))
1313                                 continue;
1314
1315                         len = sizeof(buffer);
1316
1317                         ret = nand_read(nand, off, &len, (u8 *)buffer);
1318                         if (ret < 0 && ret != -EUCLEAN) {
1319                                 printf("NAND read error %d at offset %08llX\n",
1320                                                 ret, off);
1321                                 continue;
1322                         }
1323
1324                         switch (genimg_get_format(buffer)) {
1325                         case IMAGE_FORMAT_LEGACY:
1326                                 header = (const image_header_t *)buffer;
1327
1328                                 len = image_get_image_size(header);
1329                                 nand_imls_legacyimage(nand, nand_dev, off, len);
1330                                 break;
1331 #if defined(CONFIG_FIT)
1332                         case IMAGE_FORMAT_FIT:
1333                                 len = fit_get_size(buffer);
1334                                 nand_imls_fitimage(nand, nand_dev, off, len);
1335                                 break;
1336 #endif
1337                         }
1338                 }
1339         }
1340
1341         return 0;
1342 }
1343 #endif
1344
1345 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
1346 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1347 {
1348         int ret_nor = 0, ret_nand = 0;
1349
1350 #if defined(CONFIG_CMD_IMLS)
1351         ret_nor = do_imls_nor();
1352 #endif
1353
1354 #if defined(CONFIG_CMD_IMLS_NAND)
1355         ret_nand = do_imls_nand();
1356 #endif
1357
1358         if (ret_nor)
1359                 return ret_nor;
1360
1361         if (ret_nand)
1362                 return ret_nand;
1363
1364         return (0);
1365 }
1366
1367 U_BOOT_CMD(
1368         imls,   1,              1,      do_imls,
1369         "list all images found in flash",
1370         "\n"
1371         "    - Prints information about all images found at sector/block\n"
1372         "      boundaries in nor/nand flash."
1373 );
1374 #endif
1375
1376 /*******************************************************************/
1377 /* helper routines */
1378 /*******************************************************************/
1379 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1380
1381 #define CONSOLE_ARG     "console="
1382 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
1383
1384 static void fixup_silent_linux(void)
1385 {
1386         char *buf;
1387         const char *env_val;
1388         char *cmdline = getenv("bootargs");
1389
1390         /* Only fix cmdline when requested */
1391         if (!(gd->flags & GD_FLG_SILENT))
1392                 return;
1393
1394         debug("before silent fix-up: %s\n", cmdline);
1395         if (cmdline && (cmdline[0] != '\0')) {
1396                 char *start = strstr(cmdline, CONSOLE_ARG);
1397
1398                 /* Allocate space for maximum possible new command line */
1399                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
1400                 if (!buf) {
1401                         debug("%s: out of memory\n", __func__);
1402                         return;
1403                 }
1404
1405                 if (start) {
1406                         char *end = strchr(start, ' ');
1407                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
1408
1409                         strncpy(buf, cmdline, num_start_bytes);
1410                         if (end)
1411                                 strcpy(buf + num_start_bytes, end);
1412                         else
1413                                 buf[num_start_bytes] = '\0';
1414                 } else {
1415                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
1416                 }
1417                 env_val = buf;
1418         } else {
1419                 buf = NULL;
1420                 env_val = CONSOLE_ARG;
1421         }
1422
1423         setenv("bootargs", env_val);
1424         debug("after silent fix-up: %s\n", env_val);
1425         free(buf);
1426 }
1427 #endif /* CONFIG_SILENT_CONSOLE */
1428
1429 #if defined(CONFIG_BOOTM_NETBSD) || defined(CONFIG_BOOTM_PLAN9)
1430 static void copy_args(char *dest, int argc, char * const argv[], char delim)
1431 {
1432         int i;
1433
1434         for (i = 0; i < argc; i++) {
1435                 if (i > 0)
1436                         *dest++ = delim;
1437                 strcpy(dest, argv[i]);
1438                 dest += strlen(argv[i]);
1439         }
1440 }
1441 #endif
1442
1443 /*******************************************************************/
1444 /* OS booting routines */
1445 /*******************************************************************/
1446
1447 #ifdef CONFIG_BOOTM_NETBSD
1448 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1449                             bootm_headers_t *images)
1450 {
1451         void (*loader)(bd_t *, image_header_t *, char *, char *);
1452         image_header_t *os_hdr, *hdr;
1453         ulong kernel_data, kernel_len;
1454         char *consdev;
1455         char *cmdline;
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("NetBSD");
1463                 return 1;
1464         }
1465 #endif
1466         hdr = images->legacy_hdr_os;
1467
1468         /*
1469          * Booting a (NetBSD) kernel image
1470          *
1471          * This process is pretty similar to a standalone application:
1472          * The (first part of an multi-) image must be a stage-2 loader,
1473          * which in turn is responsible for loading & invoking the actual
1474          * kernel.  The only differences are the parameters being passed:
1475          * besides the board info strucure, the loader expects a command
1476          * line, the name of the console device, and (optionally) the
1477          * address of the original image header.
1478          */
1479         os_hdr = NULL;
1480         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1481                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1482                 if (kernel_len)
1483                         os_hdr = hdr;
1484         }
1485
1486         consdev = "";
1487 #if   defined(CONFIG_8xx_CONS_SMC1)
1488         consdev = "smc1";
1489 #elif defined(CONFIG_8xx_CONS_SMC2)
1490         consdev = "smc2";
1491 #elif defined(CONFIG_8xx_CONS_SCC2)
1492         consdev = "scc2";
1493 #elif defined(CONFIG_8xx_CONS_SCC3)
1494         consdev = "scc3";
1495 #endif
1496
1497         if (argc > 0) {
1498                 ulong len;
1499                 int   i;
1500
1501                 for (i = 0, len = 0; i < argc; i += 1)
1502                         len += strlen(argv[i]) + 1;
1503                 cmdline = malloc(len);
1504                 copy_args(cmdline, argc, argv, ' ');
1505         } else if ((cmdline = getenv("bootargs")) == NULL) {
1506                 cmdline = "";
1507         }
1508
1509         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1510
1511         printf("## Transferring control to NetBSD stage-2 loader "
1512                 "(at address %08lx) ...\n",
1513                 (ulong)loader);
1514
1515         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1516
1517         /*
1518          * NetBSD Stage-2 Loader Parameters:
1519          *   r3: ptr to board info data
1520          *   r4: image address
1521          *   r5: console device
1522          *   r6: boot args string
1523          */
1524         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1525
1526         return 1;
1527 }
1528 #endif /* CONFIG_BOOTM_NETBSD*/
1529
1530 #ifdef CONFIG_LYNXKDI
1531 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1532                              bootm_headers_t *images)
1533 {
1534         image_header_t *hdr = &images->legacy_hdr_os_copy;
1535
1536         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1537                 return 1;
1538
1539 #if defined(CONFIG_FIT)
1540         if (!images->legacy_hdr_valid) {
1541                 fit_unsupported_reset("Lynx");
1542                 return 1;
1543         }
1544 #endif
1545
1546         lynxkdi_boot((image_header_t *)hdr);
1547
1548         return 1;
1549 }
1550 #endif /* CONFIG_LYNXKDI */
1551
1552 #ifdef CONFIG_BOOTM_RTEMS
1553 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1554                            bootm_headers_t *images)
1555 {
1556         void (*entry_point)(bd_t *);
1557
1558         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1559                 return 1;
1560
1561 #if defined(CONFIG_FIT)
1562         if (!images->legacy_hdr_valid) {
1563                 fit_unsupported_reset("RTEMS");
1564                 return 1;
1565         }
1566 #endif
1567
1568         entry_point = (void (*)(bd_t *))images->ep;
1569
1570         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1571                 (ulong)entry_point);
1572
1573         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1574
1575         /*
1576          * RTEMS Parameters:
1577          *   r3: ptr to board info data
1578          */
1579         (*entry_point)(gd->bd);
1580
1581         return 1;
1582 }
1583 #endif /* CONFIG_BOOTM_RTEMS */
1584
1585 #if defined(CONFIG_BOOTM_OSE)
1586 static int do_bootm_ose(int flag, int argc, char * const argv[],
1587                            bootm_headers_t *images)
1588 {
1589         void (*entry_point)(void);
1590
1591         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1592                 return 1;
1593
1594 #if defined(CONFIG_FIT)
1595         if (!images->legacy_hdr_valid) {
1596                 fit_unsupported_reset("OSE");
1597                 return 1;
1598         }
1599 #endif
1600
1601         entry_point = (void (*)(void))images->ep;
1602
1603         printf("## Transferring control to OSE (at address %08lx) ...\n",
1604                 (ulong)entry_point);
1605
1606         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1607
1608         /*
1609          * OSE Parameters:
1610          *   None
1611          */
1612         (*entry_point)();
1613
1614         return 1;
1615 }
1616 #endif /* CONFIG_BOOTM_OSE */
1617
1618 #if defined(CONFIG_BOOTM_PLAN9)
1619 static int do_bootm_plan9(int flag, int argc, char * const argv[],
1620                            bootm_headers_t *images)
1621 {
1622         void (*entry_point)(void);
1623         char *s;
1624
1625         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1626                 return 1;
1627
1628 #if defined(CONFIG_FIT)
1629         if (!images->legacy_hdr_valid) {
1630                 fit_unsupported_reset("Plan 9");
1631                 return 1;
1632         }
1633 #endif
1634
1635         /* See README.plan9 */
1636         s = getenv("confaddr");
1637         if (s != NULL) {
1638                 char *confaddr = (char *)simple_strtoul(s, NULL, 16);
1639
1640                 if (argc > 0) {
1641                         copy_args(confaddr, argc, argv, '\n');
1642                 } else {
1643                         s = getenv("bootargs");
1644                         if (s != NULL)
1645                                 strcpy(confaddr, s);
1646                 }
1647         }
1648
1649         entry_point = (void (*)(void))images->ep;
1650
1651         printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
1652                 (ulong)entry_point);
1653
1654         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1655
1656         /*
1657          * Plan 9 Parameters:
1658          *   None
1659          */
1660         (*entry_point)();
1661
1662         return 1;
1663 }
1664 #endif /* CONFIG_BOOTM_PLAN9 */
1665
1666 #if defined(CONFIG_CMD_ELF)
1667 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1668                              bootm_headers_t *images)
1669 {
1670         char str[80];
1671
1672         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1673                 return 1;
1674
1675 #if defined(CONFIG_FIT)
1676         if (!images->legacy_hdr_valid) {
1677                 fit_unsupported_reset("VxWorks");
1678                 return 1;
1679         }
1680 #endif
1681
1682         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1683         setenv("loadaddr", str);
1684         do_bootvx(NULL, 0, 0, NULL);
1685
1686         return 1;
1687 }
1688
1689 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1690                             bootm_headers_t *images)
1691 {
1692         char *local_args[2];
1693         char str[16];
1694
1695         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1696                 return 1;
1697
1698 #if defined(CONFIG_FIT)
1699         if (!images->legacy_hdr_valid) {
1700                 fit_unsupported_reset("QNX");
1701                 return 1;
1702         }
1703 #endif
1704
1705         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1706         local_args[0] = argv[0];
1707         local_args[1] = str;    /* and provide it via the arguments */
1708         do_bootelf(NULL, 0, 2, local_args);
1709
1710         return 1;
1711 }
1712 #endif
1713
1714 #ifdef CONFIG_INTEGRITY
1715 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1716                            bootm_headers_t *images)
1717 {
1718         void (*entry_point)(void);
1719
1720         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1721                 return 1;
1722
1723 #if defined(CONFIG_FIT)
1724         if (!images->legacy_hdr_valid) {
1725                 fit_unsupported_reset("INTEGRITY");
1726                 return 1;
1727         }
1728 #endif
1729
1730         entry_point = (void (*)(void))images->ep;
1731
1732         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1733                 (ulong)entry_point);
1734
1735         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1736
1737         /*
1738          * INTEGRITY Parameters:
1739          *   None
1740          */
1741         (*entry_point)();
1742
1743         return 1;
1744 }
1745 #endif
1746
1747 #ifdef CONFIG_CMD_BOOTZ
1748
1749 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
1750 {
1751         /* Please define bootz_setup() for your platform */
1752
1753         puts("Your platform's zImage format isn't supported yet!\n");
1754         return -1;
1755 }
1756
1757 /*
1758  * zImage booting support
1759  */
1760 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1761                         char * const argv[], bootm_headers_t *images)
1762 {
1763         int ret;
1764         ulong zi_start, zi_end;
1765
1766         ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
1767                               images, 1);
1768
1769         /* Setup Linux kernel zImage entry point */
1770         if (argc < 2) {
1771                 images->ep = load_addr;
1772                 debug("*  kernel: default image load address = 0x%08lx\n",
1773                                 load_addr);
1774         } else {
1775                 images->ep = simple_strtoul(argv[1], NULL, 16);
1776                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1777                         images->ep);
1778         }
1779
1780         ret = bootz_setup(images->ep, &zi_start, &zi_end);
1781         if (ret != 0)
1782                 return 1;
1783
1784         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1785
1786         ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_FINDOTHER,
1787                               images, 1);
1788
1789         return ret;
1790 }
1791
1792 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1793 {
1794         int ret;
1795
1796         if (bootz_start(cmdtp, flag, argc, argv, &images))
1797                 return 1;
1798
1799         /*
1800          * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
1801          * disable interrupts ourselves
1802          */
1803         bootm_disable_interrupts();
1804
1805         images.os.os = IH_OS_LINUX;
1806         ret = do_bootm_states(cmdtp, flag, argc, argv,
1807                               BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
1808                               BOOTM_STATE_OS_GO,
1809                               &images, 1);
1810
1811         return ret;
1812 }
1813
1814 #ifdef CONFIG_SYS_LONGHELP
1815 static char bootz_help_text[] =
1816         "[addr [initrd[:size]] [fdt]]\n"
1817         "    - boot Linux zImage stored in memory\n"
1818         "\tThe argument 'initrd' is optional and specifies the address\n"
1819         "\tof the initrd in memory. The optional argument ':size' allows\n"
1820         "\tspecifying the size of RAW initrd.\n"
1821 #if defined(CONFIG_OF_LIBFDT)
1822         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1823         "\ta third argument is required which is the address of the\n"
1824         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1825         "\tuse a '-' for the second argument. If you do not pass a third\n"
1826         "\ta bd_info struct will be passed instead\n"
1827 #endif
1828         "";
1829 #endif
1830
1831 U_BOOT_CMD(
1832         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1833         "boot Linux zImage image from memory", bootz_help_text
1834 );
1835 #endif  /* CONFIG_CMD_BOOTZ */