common/cmd_bootm.c

   1 /*
   2  * (C) Copyright 2000-2009
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8
   9 /*
  10  * Boot support
  11  */
  12 #include <common.h>
  13 #include <watchdog.h>
  14 #include <command.h>
  15 #include <image.h>
  16 #include <malloc.h>
  17 #include <u-boot/zlib.h>
  18 #include <bzlib.h>
  19 #include <environment.h>
  20 #include <lmb.h>
  21 #include <linux/ctype.h>
  22 #include <asm/byteorder.h>
  23 #include <asm/io.h>
  24 #include <linux/compiler.h>
  25
  26 #if defined(CONFIG_CMD_USB)
  27 #include <usb.h>
  28 #endif
  29
  30 #ifdef CONFIG_SYS_HUSH_PARSER
  31 #include <hush.h>
  32 #endif
  33
  34 #if defined(CONFIG_OF_LIBFDT)
  35 #include <libfdt.h>
  36 #include <fdt_support.h>
  37 #endif
  38
  39 #ifdef CONFIG_LZMA
  40 #include <lzma/LzmaTypes.h>
  41 #include <lzma/LzmaDec.h>
  42 #include <lzma/LzmaTools.h>
  43 #endif /* CONFIG_LZMA */
  44
  45 #ifdef CONFIG_LZO
  46 #include <linux/lzo.h>
  47 #endif /* CONFIG_LZO */
  48
  49 DECLARE_GLOBAL_DATA_PTR;
  50
  51 #ifndef CONFIG_SYS_BOOTM_LEN
  52 #define CONFIG_SYS_BOOTM_LEN    0x800000        /* use 8MByte as default max gunzip size */
  53 #endif
  54
  55 #ifdef CONFIG_BZIP2
  56 extern void bz_internal_error(int);
  57 #endif
  58
  59 #if defined(CONFIG_CMD_IMI)
  60 static int image_info(unsigned long addr);
  61 #endif
  62
  63 #if defined(CONFIG_CMD_IMLS)
  64 #include <flash.h>
  65 #include <mtd/cfi_flash.h>
  66 extern flash_info_t flash_info[]; /* info for FLASH chips */
  67 #endif
  68
  69 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
  70 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  71 #endif
  72
  73 #include <linux/err.h>
  74 #include <nand.h>
  75
  76 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
  77 static void fixup_silent_linux(void);
  78 #endif
  79
  80 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
  81                                 char * const argv[], bootm_headers_t *images,
  82                                 ulong *os_data, ulong *os_len);
  83
  84 /*
  85  *  Continue booting an OS image; caller already has:
  86  *  - copied image header to global variable `header'
  87  *  - checked header magic number, checksums (both header & image),
  88  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
  89  *  - loaded (first part of) image to header load address,
  90  *  - disabled interrupts.
  91  *
  92  * @flag: Flags indicating what to do (BOOTM_STATE_...)
  93  * @argc: Number of arguments. Note that the arguments are shifted down
  94  *       so that 0 is the first argument not processed by U-Boot, and
  95  *       argc is adjusted accordingly. This avoids confusion as to how
  96  *       many arguments are available for the OS.
  97  * @images: Pointers to os/initrd/fdt
  98  * @return 1 on error. On success the OS boots so this function does
  99  * not return.
 100  */
 101 typedef int boot_os_fn(int flag, int argc, char * const argv[],
 102                         bootm_headers_t *images);
 103
 104 #ifdef CONFIG_BOOTM_LINUX
 105 extern boot_os_fn do_bootm_linux;
 106 #endif
 107 #ifdef CONFIG_BOOTM_NETBSD
 108 static boot_os_fn do_bootm_netbsd;
 109 #endif
 110 #if defined(CONFIG_LYNXKDI)
 111 static boot_os_fn do_bootm_lynxkdi;
 112 extern void lynxkdi_boot(image_header_t *);
 113 #endif
 114 #ifdef CONFIG_BOOTM_RTEMS
 115 static boot_os_fn do_bootm_rtems;
 116 #endif
 117 #if defined(CONFIG_BOOTM_OSE)
 118 static boot_os_fn do_bootm_ose;
 119 #endif
 120 #if defined(CONFIG_BOOTM_PLAN9)
 121 static boot_os_fn do_bootm_plan9;
 122 #endif
 123 #if defined(CONFIG_CMD_ELF)
 124 static boot_os_fn do_bootm_vxworks;
 125 static boot_os_fn do_bootm_qnxelf;
 126 int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 127 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 128 #endif
 129 #if defined(CONFIG_INTEGRITY)
 130 static boot_os_fn do_bootm_integrity;
 131 #endif
 132
 133 static boot_os_fn *boot_os[] = {
 134 #ifdef CONFIG_BOOTM_LINUX
 135         [IH_OS_LINUX] = do_bootm_linux,
 136 #endif
 137 #ifdef CONFIG_BOOTM_NETBSD
 138         [IH_OS_NETBSD] = do_bootm_netbsd,
 139 #endif
 140 #ifdef CONFIG_LYNXKDI
 141         [IH_OS_LYNXOS] = do_bootm_lynxkdi,
 142 #endif
 143 #ifdef CONFIG_BOOTM_RTEMS
 144         [IH_OS_RTEMS] = do_bootm_rtems,
 145 #endif
 146 #if defined(CONFIG_BOOTM_OSE)
 147         [IH_OS_OSE] = do_bootm_ose,
 148 #endif
 149 #if defined(CONFIG_BOOTM_PLAN9)
 150         [IH_OS_PLAN9] = do_bootm_plan9,
 151 #endif
 152 #if defined(CONFIG_CMD_ELF)
 153         [IH_OS_VXWORKS] = do_bootm_vxworks,
 154         [IH_OS_QNX] = do_bootm_qnxelf,
 155 #endif
 156 #ifdef CONFIG_INTEGRITY
 157         [IH_OS_INTEGRITY] = do_bootm_integrity,
 158 #endif
 159 };
 160
 161 bootm_headers_t images;         /* pointers to os/initrd/fdt images */
 162
 163 /* Allow for arch specific config before we boot */
 164 static void __arch_preboot_os(void)
 165 {
 166         /* please define platform specific arch_preboot_os() */
 167 }
 168 void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os")));
 169
 170 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
 171
 172 #ifdef CONFIG_LMB
 173 static void boot_start_lmb(bootm_headers_t *images)
 174 {
 175         ulong           mem_start;
 176         phys_size_t     mem_size;
 177
 178         lmb_init(&images->lmb);
 179
 180         mem_start = getenv_bootm_low();
 181         mem_size = getenv_bootm_size();
 182
 183         lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
 184
 185         arch_lmb_reserve(&images->lmb);
 186         board_lmb_reserve(&images->lmb);
 187 }
 188 #else
 189 #define lmb_reserve(lmb, base, size)
 190 static inline void boot_start_lmb(bootm_headers_t *images) { }
 191 #endif
 192
 193 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 194 {
 195         memset((void *)&images, 0, sizeof(images));
 196         images.verify = getenv_yesno("verify");
 197
 198         boot_start_lmb(&images);
 199
 200         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
 201         images.state = BOOTM_STATE_START;
 202
 203         return 0;
 204 }
 205
 206 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
 207                          char * const argv[])
 208 {
 209         const void *os_hdr;
 210
 211         /* get kernel image header, start address and length */
 212         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
 213                         &images, &images.os.image_start, &images.os.image_len);
 214         if (images.os.image_len == 0) {
 215                 puts("ERROR: can't get kernel image!\n");
 216                 return 1;
 217         }
 218
 219         /* get image parameters */
 220         switch (genimg_get_format(os_hdr)) {
 221         case IMAGE_FORMAT_LEGACY:
 222                 images.os.type = image_get_type(os_hdr);
 223                 images.os.comp = image_get_comp(os_hdr);
 224                 images.os.os = image_get_os(os_hdr);
 225
 226                 images.os.end = image_get_image_end(os_hdr);
 227                 images.os.load = image_get_load(os_hdr);
 228                 break;
 229 #if defined(CONFIG_FIT)
 230         case IMAGE_FORMAT_FIT:
 231                 if (fit_image_get_type(images.fit_hdr_os,
 232                                         images.fit_noffset_os, &images.os.type)) {
 233                         puts("Can't get image type!\n");
 234                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 235                         return 1;
 236                 }
 237
 238                 if (fit_image_get_comp(images.fit_hdr_os,
 239                                         images.fit_noffset_os, &images.os.comp)) {
 240                         puts("Can't get image compression!\n");
 241                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 242                         return 1;
 243                 }
 244
 245                 if (fit_image_get_os(images.fit_hdr_os,
 246                                         images.fit_noffset_os, &images.os.os)) {
 247                         puts("Can't get image OS!\n");
 248                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 249                         return 1;
 250                 }
 251
 252                 images.os.end = fit_get_end(images.fit_hdr_os);
 253
 254                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 255                                         &images.os.load)) {
 256                         puts("Can't get image load address!\n");
 257                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 258                         return 1;
 259                 }
 260                 break;
 261 #endif
 262         default:
 263                 puts("ERROR: unknown image format type!\n");
 264                 return 1;
 265         }
 266
 267         /* find kernel entry point */
 268         if (images.legacy_hdr_valid) {
 269                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 270 #if defined(CONFIG_FIT)
 271         } else if (images.fit_uname_os) {
 272                 int ret;
 273
 274                 ret = fit_image_get_entry(images.fit_hdr_os,
 275                                           images.fit_noffset_os, &images.ep);
 276                 if (ret) {
 277                         puts("Can't get entry point property!\n");
 278                         return 1;
 279                 }
 280 #endif
 281         } else {
 282                 puts("Could not find kernel entry point!\n");
 283                 return 1;
 284         }
 285
 286         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 287                 images.os.load = images.os.image_start;
 288                 images.ep += images.os.load;
 289         }
 290
 291         images.os.start = (ulong)os_hdr;
 292
 293         return 0;
 294 }
 295
 296 static int bootm_find_ramdisk(int flag, int argc, char * const argv[])
 297 {
 298         int ret;
 299
 300         /* find ramdisk */
 301         ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 302                                &images.rd_start, &images.rd_end);
 303         if (ret) {
 304                 puts("Ramdisk image is corrupt or invalid\n");
 305                 return 1;
 306         }
 307
 308         return 0;
 309 }
 310
 311 #if defined(CONFIG_OF_LIBFDT)
 312 static int bootm_find_fdt(int flag, int argc, char * const argv[])
 313 {
 314         int ret;
 315
 316         /* find flattened device tree */
 317         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
 318                            &images.ft_addr, &images.ft_len);
 319         if (ret) {
 320                 puts("Could not find a valid device tree\n");
 321                 return 1;
 322         }
 323
 324         set_working_fdt_addr(images.ft_addr);
 325
 326         return 0;
 327 }
 328 #endif
 329
 330 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
 331                             char * const argv[])
 332 {
 333         if (((images.os.type == IH_TYPE_KERNEL) ||
 334              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 335              (images.os.type == IH_TYPE_MULTI)) &&
 336             (images.os.os == IH_OS_LINUX)) {
 337                 if (bootm_find_ramdisk(flag, argc, argv))
 338                         return 1;
 339
 340 #if defined(CONFIG_OF_LIBFDT)
 341                 if (bootm_find_fdt(flag, argc, argv))
 342                         return 1;
 343 #endif
 344         }
 345
 346         return 0;
 347 }
 348
 349 #define BOOTM_ERR_RESET         -1
 350 #define BOOTM_ERR_OVERLAP       -2
 351 #define BOOTM_ERR_UNIMPLEMENTED -3
 352 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
 353                 int boot_progress)
 354 {
 355         image_info_t os = images->os;
 356         uint8_t comp = os.comp;
 357         ulong load = os.load;
 358         ulong blob_start = os.start;
 359         ulong blob_end = os.end;
 360         ulong image_start = os.image_start;
 361         ulong image_len = os.image_len;
 362         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 363         int no_overlap = 0;
 364         void *load_buf, *image_buf;
 365 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 366         int ret;
 367 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 368
 369         const char *type_name = genimg_get_type_name(os.type);
 370
 371         load_buf = map_sysmem(load, unc_len);
 372         image_buf = map_sysmem(image_start, image_len);
 373         switch (comp) {
 374         case IH_COMP_NONE:
 375                 if (load == blob_start || load == image_start) {
 376                         printf("   XIP %s ... ", type_name);
 377                         no_overlap = 1;
 378                 } else {
 379                         printf("   Loading %s ... ", type_name);
 380                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
 381                 }
 382                 *load_end = load + image_len;
 383                 break;
 384 #ifdef CONFIG_GZIP
 385         case IH_COMP_GZIP:
 386                 printf("   Uncompressing %s ... ", type_name);
 387                 if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) {
 388                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 389                                 "error - must RESET board to recover\n");
 390                         if (boot_progress)
 391                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 392                         return BOOTM_ERR_RESET;
 393                 }
 394
 395                 *load_end = load + image_len;
 396                 break;
 397 #endif /* CONFIG_GZIP */
 398 #ifdef CONFIG_BZIP2
 399         case IH_COMP_BZIP2:
 400                 printf("   Uncompressing %s ... ", type_name);
 401                 /*
 402                  * If we've got less than 4 MB of malloc() space,
 403                  * use slower decompression algorithm which requires
 404                  * at most 2300 KB of memory.
 405                  */
 406                 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
 407                         image_buf, image_len,
 408                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 409                 if (i != BZ_OK) {
 410                         printf("BUNZIP2: uncompress or overwrite error %d "
 411                                 "- must RESET board to recover\n", i);
 412                         if (boot_progress)
 413                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 414                         return BOOTM_ERR_RESET;
 415                 }
 416
 417                 *load_end = load + unc_len;
 418                 break;
 419 #endif /* CONFIG_BZIP2 */
 420 #ifdef CONFIG_LZMA
 421         case IH_COMP_LZMA: {
 422                 SizeT lzma_len = unc_len;
 423                 printf("   Uncompressing %s ... ", type_name);
 424
 425                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
 426                                                image_buf, image_len);
 427                 unc_len = lzma_len;
 428                 if (ret != SZ_OK) {
 429                         printf("LZMA: uncompress or overwrite error %d "
 430                                 "- must RESET board to recover\n", ret);
 431                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 432                         return BOOTM_ERR_RESET;
 433                 }
 434                 *load_end = load + unc_len;
 435                 break;
 436         }
 437 #endif /* CONFIG_LZMA */
 438 #ifdef CONFIG_LZO
 439         case IH_COMP_LZO: {
 440                 size_t size;
 441
 442                 printf("   Uncompressing %s ... ", type_name);
 443
 444                 ret = lzop_decompress(image_buf, image_len, load_buf, &size);
 445                 if (ret != LZO_E_OK) {
 446                         printf("LZO: uncompress or overwrite error %d "
 447                               "- must RESET board to recover\n", ret);
 448                         if (boot_progress)
 449                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 450                         return BOOTM_ERR_RESET;
 451                 }
 452
 453                 *load_end = load + size;
 454                 break;
 455         }
 456 #endif /* CONFIG_LZO */
 457         default:
 458                 printf("Unimplemented compression type %d\n", comp);
 459                 return BOOTM_ERR_UNIMPLEMENTED;
 460         }
 461
 462         flush_cache(load, (*load_end - load) * sizeof(ulong));
 463
 464         puts("OK\n");
 465         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 466         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 467
 468         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 469                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 470                         blob_start, blob_end);
 471                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 472                         *load_end);
 473
 474                 /* Check what type of image this is. */
 475                 if (images->legacy_hdr_valid) {
 476                         if (image_get_type(&images->legacy_hdr_os_copy)
 477                                         == IH_TYPE_MULTI)
 478                                 puts("WARNING: legacy format multi component image overwritten\n");
 479                         return BOOTM_ERR_OVERLAP;
 480                 } else {
 481                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
 482                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 483                         return BOOTM_ERR_RESET;
 484                 }
 485         }
 486
 487         return 0;
 488 }
 489
 490 static int bootm_start_standalone(int argc, char * const argv[])
 491 {
 492         char  *s;
 493         int   (*appl)(int, char * const []);
 494
 495         /* Don't start if "autostart" is set to "no" */
 496         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 497                 setenv_hex("filesize", images.os.image_len);
 498                 return 0;
 499         }
 500         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
 501         (*appl)(argc, argv);
 502         return 0;
 503 }
 504
 505 /* we overload the cmd field with our state machine info instead of a
 506  * function pointer */
 507 static cmd_tbl_t cmd_bootm_sub[] = {
 508         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 509         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 510 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 511         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 512 #endif
 513 #ifdef CONFIG_OF_LIBFDT
 514         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 515 #endif
 516         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 517         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 518         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 519         U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""),
 520         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 521 };
 522
 523 static int boot_selected_os(int argc, char * const argv[], int state,
 524                 bootm_headers_t *images, boot_os_fn *boot_fn)
 525 {
 526         if (images->os.type == IH_TYPE_STANDALONE) {
 527                 /* This may return when 'autostart' is 'no' */
 528                 bootm_start_standalone(argc, argv);
 529                 return 0;
 530         }
 531         arch_preboot_os();
 532         boot_fn(state, argc, argv, images);
 533         if (state == BOOTM_STATE_OS_FAKE_GO) /* We expect to return */
 534                 return 0;
 535         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
 536 #ifdef DEBUG
 537         puts("\n## Control returned to monitor - resetting...\n");
 538 #endif
 539         return BOOTM_ERR_RESET;
 540 }
 541
 542 /**
 543  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
 544  *
 545  * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
 546  *      enabled)
 547  */
 548 static ulong bootm_disable_interrupts(void)
 549 {
 550         ulong iflag;
 551
 552         /*
 553          * We have reached the point of no return: we are going to
 554          * overwrite all exception vector code, so we cannot easily
 555          * recover from any failures any more...
 556          */
 557         iflag = disable_interrupts();
 558 #ifdef CONFIG_NETCONSOLE
 559         /* Stop the ethernet stack if NetConsole could have left it up */
 560         eth_halt();
 561 #endif
 562
 563 #if defined(CONFIG_CMD_USB)
 564         /*
 565          * turn off USB to prevent the host controller from writing to the
 566          * SDRAM while Linux is booting. This could happen (at least for OHCI
 567          * controller), because the HCCA (Host Controller Communication Area)
 568          * lies within the SDRAM and the host controller writes continously to
 569          * this area (as busmaster!). The HccaFrameNumber is for example
 570          * updated every 1 ms within the HCCA structure in SDRAM! For more
 571          * details see the OpenHCI specification.
 572          */
 573         usb_stop();
 574 #endif
 575         return iflag;
 576 }
 577
 578 /**
 579  * Execute selected states of the bootm command.
 580  *
 581  * Note the arguments to this state must be the first argument, Any 'bootm'
 582  * or sub-command arguments must have already been taken.
 583  *
 584  * Note that if states contains more than one flag it MUST contain
 585  * BOOTM_STATE_START, since this handles and consumes the command line args.
 586  *
 587  * Also note that aside from boot_os_fn functions and bootm_load_os no other
 588  * functions we store the return value of in 'ret' may use a negative return
 589  * value, without special handling.
 590  *
 591  * @param cmdtp         Pointer to bootm command table entry
 592  * @param flag          Command flags (CMD_FLAG_...)
 593  * @param argc          Number of subcommand arguments (0 = no arguments)
 594  * @param argv          Arguments
 595  * @param states        Mask containing states to run (BOOTM_STATE_...)
 596  * @param images        Image header information
 597  * @param boot_progress 1 to show boot progress, 0 to not do this
 598  * @return 0 if ok, something else on error. Some errors will cause this
 599  *      function to perform a reboot! If states contains BOOTM_STATE_OS_GO
 600  *      then the intent is to boot an OS, so this function will not return
 601  *      unless the image type is standalone.
 602  */
 603 static int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc,
 604                 char * const argv[], int states, bootm_headers_t *images,
 605                 int boot_progress)
 606 {
 607         boot_os_fn *boot_fn;
 608         ulong iflag = 0;
 609         int ret = 0, need_boot_fn;
 610
 611         images->state |= states;
 612
 613         /*
 614          * Work through the states and see how far we get. We stop on
 615          * any error.
 616          */
 617         if (states & BOOTM_STATE_START)
 618                 ret = bootm_start(cmdtp, flag, argc, argv);
 619
 620         if (!ret && (states & BOOTM_STATE_FINDOS))
 621                 ret = bootm_find_os(cmdtp, flag, argc, argv);
 622
 623         if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
 624                 ret = bootm_find_other(cmdtp, flag, argc, argv);
 625                 argc = 0;       /* consume the args */
 626         }
 627
 628         /* Load the OS */
 629         if (!ret && (states & BOOTM_STATE_LOADOS)) {
 630                 ulong load_end;
 631
 632                 iflag = bootm_disable_interrupts();
 633                 ret = bootm_load_os(images, &load_end, 0);
 634                 if (ret == 0)
 635                         lmb_reserve(&images->lmb, images->os.load,
 636                                     (load_end - images->os.load));
 637                 else if (ret && ret != BOOTM_ERR_OVERLAP)
 638                         goto err;
 639                 else if (ret == BOOTM_ERR_OVERLAP)
 640                         ret = 0;
 641 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
 642                 if (images->os.os == IH_OS_LINUX)
 643                         fixup_silent_linux();
 644 #endif
 645         }
 646
 647         /* Relocate the ramdisk */
 648 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 649         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
 650                 ulong rd_len = images->rd_end - images->rd_start;
 651
 652                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
 653                         rd_len, &images->initrd_start, &images->initrd_end);
 654                 if (!ret) {
 655                         setenv_hex("initrd_start", images->initrd_start);
 656                         setenv_hex("initrd_end", images->initrd_end);
 657                 }
 658         }
 659 #endif
 660 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
 661         if (!ret && (states & BOOTM_STATE_FDT)) {
 662                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
 663                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
 664                                         &images->ft_len);
 665         }
 666 #endif
 667
 668         /* From now on, we need the OS boot function */
 669         if (ret)
 670                 return ret;
 671         boot_fn = boot_os[images->os.os];
 672         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
 673                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
 674                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
 675         if (boot_fn == NULL && need_boot_fn) {
 676                 if (iflag)
 677                         enable_interrupts();
 678                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 679                        genimg_get_os_name(images->os.os), images->os.os);
 680                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 681                 return 1;
 682         }
 683
 684         /* Call various other states that are not generally used */
 685         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
 686                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
 687         if (!ret && (states & BOOTM_STATE_OS_BD_T))
 688                 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
 689         if (!ret && (states & BOOTM_STATE_OS_PREP))
 690                 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
 691
 692 #ifdef CONFIG_TRACE
 693         /* Pretend to run the OS, then run a user command */
 694         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
 695                 char *cmd_list = getenv("fakegocmd");
 696
 697                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
 698                                 images, boot_fn);
 699                 if (!ret && cmd_list)
 700                         ret = run_command_list(cmd_list, -1, flag);
 701         }
 702 #endif
 703
 704         /* Check for unsupported subcommand. */
 705         if (ret) {
 706                 puts("subcommand not supported\n");
 707                 return ret;
 708         }
 709
 710         /* Now run the OS! We hope this doesn't return */
 711         if (!ret && (states & BOOTM_STATE_OS_GO))
 712                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
 713                                 images, boot_fn);
 714
 715         /* Deal with any fallout */
 716 err:
 717         if (iflag)
 718                 enable_interrupts();
 719
 720         if (ret == BOOTM_ERR_UNIMPLEMENTED)
 721                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 722         else if (ret == BOOTM_ERR_RESET)
 723                 do_reset(cmdtp, flag, argc, argv);
 724
 725         return ret;
 726 }
 727
 728 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 729                         char * const argv[])
 730 {
 731         int ret = 0;
 732         long state;
 733         cmd_tbl_t *c;
 734
 735         c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 736         argc--; argv++;
 737
 738         if (c) {
 739                 state = (long)c->cmd;
 740                 if (state == BOOTM_STATE_START)
 741                         state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
 742         } else {
 743                 /* Unrecognized command */
 744                 return CMD_RET_USAGE;
 745         }
 746
 747         if (state != BOOTM_STATE_START && images.state >= state) {
 748                 printf("Trying to execute a command out of order\n");
 749                 return CMD_RET_USAGE;
 750         }
 751
 752         ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
 753
 754         return ret;
 755 }
 756
 757 /*******************************************************************/
 758 /* bootm - boot application image from image in memory */
 759 /*******************************************************************/
 760
 761 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 762 {
 763 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 764         static int relocated = 0;
 765
 766         if (!relocated) {
 767                 int i;
 768
 769                 /* relocate boot function table */
 770                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
 771                         if (boot_os[i] != NULL)
 772                                 boot_os[i] += gd->reloc_off;
 773
 774                 /* relocate names of sub-command table */
 775                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
 776                         cmd_bootm_sub[i].name += gd->reloc_off;
 777
 778                 relocated = 1;
 779         }
 780 #endif
 781
 782         /* determine if we have a sub command */
 783         argc--; argv++;
 784         if (argc > 0) {
 785                 char *endp;
 786
 787                 simple_strtoul(argv[0], &endp, 16);
 788                 /* endp pointing to NULL means that argv[0] was just a
 789                  * valid number, pass it along to the normal bootm processing
 790                  *
 791                  * If endp is ':' or '#' assume a FIT identifier so pass
 792                  * along for normal processing.
 793                  *
 794                  * Right now we assume the first arg should never be '-'
 795                  */
 796                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 797                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 798         }
 799
 800         return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
 801                 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
 802                 BOOTM_STATE_LOADOS | BOOTM_STATE_OS_CMDLINE |
 803                 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
 804                 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_uname_cfg = fit_uname_config;
 983                 images->fit_noffset_os = os_noffset;
 984                 break;
 985 #endif
 986         default:
 987                 printf("Wrong Image Format for %s command\n", cmdtp->name);
 988                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
 989                 return NULL;
 990         }
 991
 992         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
 993                         *os_data, *os_len, *os_len);
 994
 995         return buf;
 996 }
 997
 998 #ifdef CONFIG_SYS_LONGHELP
 999 static char bootm_help_text[] =
1000         "[addr [arg ...]]\n    - boot application image stored in memory\n"
1001         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
1002         "\t'arg' can be the address of an initrd image\n"
1003 #if defined(CONFIG_OF_LIBFDT)
1004         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1005         "\ta third argument is required which is the address of the\n"
1006         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1007         "\tuse a '-' for the second argument. If you do not pass a third\n"
1008         "\ta bd_info struct will be passed instead\n"
1009 #endif
1010 #if defined(CONFIG_FIT)
1011         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1012         "\tmust be extened to include component or configuration unit name:\n"
1013         "\taddr:<subimg_uname> - direct component image specification\n"
1014         "\taddr#<conf_uname>   - configuration specification\n"
1015         "\tUse iminfo command to get the list of existing component\n"
1016         "\timages and configurations.\n"
1017 #endif
1018         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1019         "must be\n"
1020         "issued in the order below (it's ok to not issue all sub-commands):\n"
1021         "\tstart [addr [arg ...]]\n"
1022         "\tloados  - load OS image\n"
1023 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
1024         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1025 #endif
1026 #if defined(CONFIG_OF_LIBFDT)
1027         "\tfdt     - relocate flat device tree\n"
1028 #endif
1029         "\tcmdline - OS specific command line processing/setup\n"
1030         "\tbdt     - OS specific bd_t processing\n"
1031         "\tprep    - OS specific prep before relocation or go\n"
1032         "\tgo      - start OS";
1033 #endif
1034
1035 U_BOOT_CMD(
1036         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1037         "boot application image from memory", bootm_help_text
1038 );
1039
1040 /*******************************************************************/
1041 /* bootd - boot default image */
1042 /*******************************************************************/
1043 #if defined(CONFIG_CMD_BOOTD)
1044 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1045 {
1046         int rcode = 0;
1047
1048         if (run_command(getenv("bootcmd"), flag) < 0)
1049                 rcode = 1;
1050         return rcode;
1051 }
1052
1053 U_BOOT_CMD(
1054         boot,   1,      1,      do_bootd,
1055         "boot default, i.e., run 'bootcmd'",
1056         ""
1057 );
1058
1059 /* keep old command name "bootd" for backward compatibility */
1060 U_BOOT_CMD(
1061         bootd, 1,       1,      do_bootd,
1062         "boot default, i.e., run 'bootcmd'",
1063         ""
1064 );
1065
1066 #endif
1067
1068
1069 /*******************************************************************/
1070 /* iminfo - print header info for a requested image */
1071 /*******************************************************************/
1072 #if defined(CONFIG_CMD_IMI)
1073 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1074 {
1075         int     arg;
1076         ulong   addr;
1077         int     rcode = 0;
1078
1079         if (argc < 2) {
1080                 return image_info(load_addr);
1081         }
1082
1083         for (arg = 1; arg < argc; ++arg) {
1084                 addr = simple_strtoul(argv[arg], NULL, 16);
1085                 if (image_info(addr) != 0)
1086                         rcode = 1;
1087         }
1088         return rcode;
1089 }
1090
1091 static int image_info(ulong addr)
1092 {
1093         void *hdr = (void *)addr;
1094
1095         printf("\n## Checking Image at %08lx ...\n", addr);
1096
1097         switch (genimg_get_format(hdr)) {
1098         case IMAGE_FORMAT_LEGACY:
1099                 puts("   Legacy image found\n");
1100                 if (!image_check_magic(hdr)) {
1101                         puts("   Bad Magic Number\n");
1102                         return 1;
1103                 }
1104
1105                 if (!image_check_hcrc(hdr)) {
1106                         puts("   Bad Header Checksum\n");
1107                         return 1;
1108                 }
1109
1110                 image_print_contents(hdr);
1111
1112                 puts("   Verifying Checksum ... ");
1113                 if (!image_check_dcrc(hdr)) {
1114                         puts("   Bad Data CRC\n");
1115                         return 1;
1116                 }
1117                 puts("OK\n");
1118                 return 0;
1119 #if defined(CONFIG_FIT)
1120         case IMAGE_FORMAT_FIT:
1121                 puts("   FIT image found\n");
1122
1123                 if (!fit_check_format(hdr)) {
1124                         puts("Bad FIT image format!\n");
1125                         return 1;
1126                 }
1127
1128                 fit_print_contents(hdr);
1129
1130                 if (!fit_all_image_verify(hdr)) {
1131                         puts("Bad hash in FIT image!\n");
1132                         return 1;
1133                 }
1134
1135                 return 0;
1136 #endif
1137         default:
1138                 puts("Unknown image format!\n");
1139                 break;
1140         }
1141
1142         return 1;
1143 }
1144
1145 U_BOOT_CMD(
1146         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1147         "print header information for application image",
1148         "addr [addr ...]\n"
1149         "    - print header information for application image starting at\n"
1150         "      address 'addr' in memory; this includes verification of the\n"
1151         "      image contents (magic number, header and payload checksums)"
1152 );
1153 #endif
1154
1155
1156 /*******************************************************************/
1157 /* imls - list all images found in flash */
1158 /*******************************************************************/
1159 #if defined(CONFIG_CMD_IMLS)
1160 static int do_imls_nor(void)
1161 {
1162         flash_info_t *info;
1163         int i, j;
1164         void *hdr;
1165
1166         for (i = 0, info = &flash_info[0];
1167                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1168
1169                 if (info->flash_id == FLASH_UNKNOWN)
1170                         goto next_bank;
1171                 for (j = 0; j < info->sector_count; ++j) {
1172
1173                         hdr = (void *)info->start[j];
1174                         if (!hdr)
1175                                 goto next_sector;
1176
1177                         switch (genimg_get_format(hdr)) {
1178                         case IMAGE_FORMAT_LEGACY:
1179                                 if (!image_check_hcrc(hdr))
1180                                         goto next_sector;
1181
1182                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1183                                 image_print_contents(hdr);
1184
1185                                 puts("   Verifying Checksum ... ");
1186                                 if (!image_check_dcrc(hdr)) {
1187                                         puts("Bad Data CRC\n");
1188                                 } else {
1189                                         puts("OK\n");
1190                                 }
1191                                 break;
1192 #if defined(CONFIG_FIT)
1193                         case IMAGE_FORMAT_FIT:
1194                                 if (!fit_check_format(hdr))
1195                                         goto next_sector;
1196
1197                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1198                                 fit_print_contents(hdr);
1199                                 break;
1200 #endif
1201                         default:
1202                                 goto next_sector;
1203                         }
1204
1205 next_sector:            ;
1206                 }
1207 next_bank:      ;
1208         }
1209         return 0;
1210 }
1211 #endif
1212
1213 #if defined(CONFIG_CMD_IMLS_NAND)
1214 static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
1215                 size_t len)
1216 {
1217         void *imgdata;
1218         int ret;
1219
1220         imgdata = malloc(len);
1221         if (!imgdata) {
1222                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
1223                                 nand_dev, off);
1224                 printf("   Low memory(cannot allocate memory for image)\n");
1225                 return -ENOMEM;
1226         }
1227
1228         ret = nand_read_skip_bad(nand, off, &len,
1229                         imgdata);
1230         if (ret < 0 && ret != -EUCLEAN) {
1231                 free(imgdata);
1232                 return ret;
1233         }
1234
1235         if (!image_check_hcrc(imgdata)) {
1236                 free(imgdata);
1237                 return 0;
1238         }
1239
1240         printf("Legacy Image at NAND device %d offset %08llX:\n",
1241                         nand_dev, off);
1242         image_print_contents(imgdata);
1243
1244         puts("   Verifying Checksum ... ");
1245         if (!image_check_dcrc(imgdata))
1246                 puts("Bad Data CRC\n");
1247         else
1248                 puts("OK\n");
1249
1250         free(imgdata);
1251
1252         return 0;
1253 }
1254
1255 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
1256                 size_t len)
1257 {
1258         void *imgdata;
1259         int ret;
1260
1261         imgdata = malloc(len);
1262         if (!imgdata) {
1263                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
1264                                 nand_dev, off);
1265                 printf("   Low memory(cannot allocate memory for image)\n");
1266                 return -ENOMEM;
1267         }
1268
1269         ret = nand_read_skip_bad(nand, off, &len,
1270                         imgdata);
1271         if (ret < 0 && ret != -EUCLEAN) {
1272                 free(imgdata);
1273                 return ret;
1274         }
1275
1276         if (!fit_check_format(imgdata)) {
1277                 free(imgdata);
1278                 return 0;
1279         }
1280
1281         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
1282
1283         fit_print_contents(imgdata);
1284         free(imgdata);
1285
1286         return 0;
1287 }
1288
1289 static int do_imls_nand(void)
1290 {
1291         nand_info_t *nand;
1292         int nand_dev = nand_curr_device;
1293         size_t len;
1294         loff_t off;
1295         u32 buffer[16];
1296
1297         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
1298                 puts("\nNo NAND devices available\n");
1299                 return -ENODEV;
1300         }
1301
1302         printf("\n");
1303
1304         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
1305                 nand = &nand_info[nand_dev];
1306                 if (!nand->name || !nand->size)
1307                         continue;
1308
1309                 for (off = 0; off < nand->size; off += nand->erasesize) {
1310                         const image_header_t *header;
1311                         int ret;
1312
1313                         if (nand_block_isbad(nand, off))
1314                                 continue;
1315
1316                         len = sizeof(buffer);
1317
1318                         ret = nand_read(nand, off, &len, (u8 *)buffer);
1319                         if (ret < 0 && ret != -EUCLEAN) {
1320                                 printf("NAND read error %d at offset %08llX\n",
1321                                                 ret, off);
1322                                 continue;
1323                         }
1324
1325                         switch (genimg_get_format(buffer)) {
1326                         case IMAGE_FORMAT_LEGACY:
1327                                 header = (const image_header_t *)buffer;
1328
1329                                 len = image_get_image_size(header);
1330                                 nand_imls_legacyimage(nand, nand_dev, off, len);
1331                                 break;
1332 #if defined(CONFIG_FIT)
1333                         case IMAGE_FORMAT_FIT:
1334                                 len = fit_get_size(buffer);
1335                                 nand_imls_fitimage(nand, nand_dev, off, len);
1336                                 break;
1337 #endif
1338                         }
1339                 }
1340         }
1341
1342         return 0;
1343 }
1344 #endif
1345
1346 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
1347 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1348 {
1349         int ret_nor = 0, ret_nand = 0;
1350
1351 #if defined(CONFIG_CMD_IMLS)
1352         ret_nor = do_imls_nor();
1353 #endif
1354
1355 #if defined(CONFIG_CMD_IMLS_NAND)
1356         ret_nand = do_imls_nand();
1357 #endif
1358
1359         if (ret_nor)
1360                 return ret_nor;
1361
1362         if (ret_nand)
1363                 return ret_nand;
1364
1365         return (0);
1366 }
1367
1368 U_BOOT_CMD(
1369         imls,   1,              1,      do_imls,
1370         "list all images found in flash",
1371         "\n"
1372         "    - Prints information about all images found at sector/block\n"
1373         "      boundaries in nor/nand flash."
1374 );
1375 #endif
1376
1377 /*******************************************************************/
1378 /* helper routines */
1379 /*******************************************************************/
1380 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1381
1382 #define CONSOLE_ARG     "console="
1383 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
1384
1385 static void fixup_silent_linux(void)
1386 {
1387         char *buf;
1388         const char *env_val;
1389         char *cmdline = getenv("bootargs");
1390         int want_silent;
1391
1392         /*
1393          * Only fix cmdline when requested. The environment variable can be:
1394          *
1395          *      no - we never fixup
1396          *      yes - we always fixup
1397          *      unset - we rely on the console silent flag
1398          */
1399         want_silent = getenv_yesno("silent_linux");
1400         if (want_silent == 0)
1401                 return;
1402         else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
1403                 return;
1404
1405         debug("before silent fix-up: %s\n", cmdline);
1406         if (cmdline && (cmdline[0] != '\0')) {
1407                 char *start = strstr(cmdline, CONSOLE_ARG);
1408
1409                 /* Allocate space for maximum possible new command line */
1410                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
1411                 if (!buf) {
1412                         debug("%s: out of memory\n", __func__);
1413                         return;
1414                 }
1415
1416                 if (start) {
1417                         char *end = strchr(start, ' ');
1418                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
1419
1420                         strncpy(buf, cmdline, num_start_bytes);
1421                         if (end)
1422                                 strcpy(buf + num_start_bytes, end);
1423                         else
1424                                 buf[num_start_bytes] = '\0';
1425                 } else {
1426                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
1427                 }
1428                 env_val = buf;
1429         } else {
1430                 buf = NULL;
1431                 env_val = CONSOLE_ARG;
1432         }
1433
1434         setenv("bootargs", env_val);
1435         debug("after silent fix-up: %s\n", env_val);
1436         free(buf);
1437 }
1438 #endif /* CONFIG_SILENT_CONSOLE */
1439
1440 #if defined(CONFIG_BOOTM_NETBSD) || defined(CONFIG_BOOTM_PLAN9)
1441 static void copy_args(char *dest, int argc, char * const argv[], char delim)
1442 {
1443         int i;
1444
1445         for (i = 0; i < argc; i++) {
1446                 if (i > 0)
1447                         *dest++ = delim;
1448                 strcpy(dest, argv[i]);
1449                 dest += strlen(argv[i]);
1450         }
1451 }
1452 #endif
1453
1454 /*******************************************************************/
1455 /* OS booting routines */
1456 /*******************************************************************/
1457
1458 #ifdef CONFIG_BOOTM_NETBSD
1459 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1460                             bootm_headers_t *images)
1461 {
1462         void (*loader)(bd_t *, image_header_t *, char *, char *);
1463         image_header_t *os_hdr, *hdr;
1464         ulong kernel_data, kernel_len;
1465         char *consdev;
1466         char *cmdline;
1467
1468         if (flag & BOOTM_STATE_OS_PREP)
1469                 return 0;
1470         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1471                 return 1;
1472
1473 #if defined(CONFIG_FIT)
1474         if (!images->legacy_hdr_valid) {
1475                 fit_unsupported_reset("NetBSD");
1476                 return 1;
1477         }
1478 #endif
1479         hdr = images->legacy_hdr_os;
1480
1481         /*
1482          * Booting a (NetBSD) kernel image
1483          *
1484          * This process is pretty similar to a standalone application:
1485          * The (first part of an multi-) image must be a stage-2 loader,
1486          * which in turn is responsible for loading & invoking the actual
1487          * kernel.  The only differences are the parameters being passed:
1488          * besides the board info strucure, the loader expects a command
1489          * line, the name of the console device, and (optionally) the
1490          * address of the original image header.
1491          */
1492         os_hdr = NULL;
1493         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1494                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1495                 if (kernel_len)
1496                         os_hdr = hdr;
1497         }
1498
1499         consdev = "";
1500 #if   defined(CONFIG_8xx_CONS_SMC1)
1501         consdev = "smc1";
1502 #elif defined(CONFIG_8xx_CONS_SMC2)
1503         consdev = "smc2";
1504 #elif defined(CONFIG_8xx_CONS_SCC2)
1505         consdev = "scc2";
1506 #elif defined(CONFIG_8xx_CONS_SCC3)
1507         consdev = "scc3";
1508 #endif
1509
1510         if (argc > 0) {
1511                 ulong len;
1512                 int   i;
1513
1514                 for (i = 0, len = 0; i < argc; i += 1)
1515                         len += strlen(argv[i]) + 1;
1516                 cmdline = malloc(len);
1517                 copy_args(cmdline, argc, argv, ' ');
1518         } else if ((cmdline = getenv("bootargs")) == NULL) {
1519                 cmdline = "";
1520         }
1521
1522         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1523
1524         printf("## Transferring control to NetBSD stage-2 loader "
1525                 "(at address %08lx) ...\n",
1526                 (ulong)loader);
1527
1528         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1529
1530         /*
1531          * NetBSD Stage-2 Loader Parameters:
1532          *   r3: ptr to board info data
1533          *   r4: image address
1534          *   r5: console device
1535          *   r6: boot args string
1536          */
1537         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1538
1539         return 1;
1540 }
1541 #endif /* CONFIG_BOOTM_NETBSD*/
1542
1543 #ifdef CONFIG_LYNXKDI
1544 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1545                              bootm_headers_t *images)
1546 {
1547         image_header_t *hdr = &images->legacy_hdr_os_copy;
1548
1549         if (flag & BOOTM_STATE_OS_PREP)
1550                 return 0;
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("Lynx");
1557                 return 1;
1558         }
1559 #endif
1560
1561         lynxkdi_boot((image_header_t *)hdr);
1562
1563         return 1;
1564 }
1565 #endif /* CONFIG_LYNXKDI */
1566
1567 #ifdef CONFIG_BOOTM_RTEMS
1568 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1569                            bootm_headers_t *images)
1570 {
1571         void (*entry_point)(bd_t *);
1572
1573         if (flag & BOOTM_STATE_OS_PREP)
1574                 return 0;
1575         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1576                 return 1;
1577
1578 #if defined(CONFIG_FIT)
1579         if (!images->legacy_hdr_valid) {
1580                 fit_unsupported_reset("RTEMS");
1581                 return 1;
1582         }
1583 #endif
1584
1585         entry_point = (void (*)(bd_t *))images->ep;
1586
1587         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1588                 (ulong)entry_point);
1589
1590         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1591
1592         /*
1593          * RTEMS Parameters:
1594          *   r3: ptr to board info data
1595          */
1596         (*entry_point)(gd->bd);
1597
1598         return 1;
1599 }
1600 #endif /* CONFIG_BOOTM_RTEMS */
1601
1602 #if defined(CONFIG_BOOTM_OSE)
1603 static int do_bootm_ose(int flag, int argc, char * const argv[],
1604                            bootm_headers_t *images)
1605 {
1606         void (*entry_point)(void);
1607
1608         if (flag & BOOTM_STATE_OS_PREP)
1609                 return 0;
1610         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1611                 return 1;
1612
1613 #if defined(CONFIG_FIT)
1614         if (!images->legacy_hdr_valid) {
1615                 fit_unsupported_reset("OSE");
1616                 return 1;
1617         }
1618 #endif
1619
1620         entry_point = (void (*)(void))images->ep;
1621
1622         printf("## Transferring control to OSE (at address %08lx) ...\n",
1623                 (ulong)entry_point);
1624
1625         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1626
1627         /*
1628          * OSE Parameters:
1629          *   None
1630          */
1631         (*entry_point)();
1632
1633         return 1;
1634 }
1635 #endif /* CONFIG_BOOTM_OSE */
1636
1637 #if defined(CONFIG_BOOTM_PLAN9)
1638 static int do_bootm_plan9(int flag, int argc, char * const argv[],
1639                            bootm_headers_t *images)
1640 {
1641         void (*entry_point)(void);
1642         char *s;
1643
1644         if (flag & BOOTM_STATE_OS_PREP)
1645                 return 0;
1646         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1647                 return 1;
1648
1649 #if defined(CONFIG_FIT)
1650         if (!images->legacy_hdr_valid) {
1651                 fit_unsupported_reset("Plan 9");
1652                 return 1;
1653         }
1654 #endif
1655
1656         /* See README.plan9 */
1657         s = getenv("confaddr");
1658         if (s != NULL) {
1659                 char *confaddr = (char *)simple_strtoul(s, NULL, 16);
1660
1661                 if (argc > 0) {
1662                         copy_args(confaddr, argc, argv, '\n');
1663                 } else {
1664                         s = getenv("bootargs");
1665                         if (s != NULL)
1666                                 strcpy(confaddr, s);
1667                 }
1668         }
1669
1670         entry_point = (void (*)(void))images->ep;
1671
1672         printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
1673                 (ulong)entry_point);
1674
1675         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1676
1677         /*
1678          * Plan 9 Parameters:
1679          *   None
1680          */
1681         (*entry_point)();
1682
1683         return 1;
1684 }
1685 #endif /* CONFIG_BOOTM_PLAN9 */
1686
1687 #if defined(CONFIG_CMD_ELF)
1688 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1689                              bootm_headers_t *images)
1690 {
1691         char str[80];
1692
1693         if (flag & BOOTM_STATE_OS_PREP)
1694                 return 0;
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("VxWorks");
1701                 return 1;
1702         }
1703 #endif
1704
1705         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1706         setenv("loadaddr", str);
1707         do_bootvx(NULL, 0, 0, NULL);
1708
1709         return 1;
1710 }
1711
1712 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1713                             bootm_headers_t *images)
1714 {
1715         char *local_args[2];
1716         char str[16];
1717
1718         if (flag & BOOTM_STATE_OS_PREP)
1719                 return 0;
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("QNX");
1726                 return 1;
1727         }
1728 #endif
1729
1730         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1731         local_args[0] = argv[0];
1732         local_args[1] = str;    /* and provide it via the arguments */
1733         do_bootelf(NULL, 0, 2, local_args);
1734
1735         return 1;
1736 }
1737 #endif
1738
1739 #ifdef CONFIG_INTEGRITY
1740 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1741                            bootm_headers_t *images)
1742 {
1743         void (*entry_point)(void);
1744
1745         if (flag & BOOTM_STATE_OS_PREP)
1746                 return 0;
1747         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1748                 return 1;
1749
1750 #if defined(CONFIG_FIT)
1751         if (!images->legacy_hdr_valid) {
1752                 fit_unsupported_reset("INTEGRITY");
1753                 return 1;
1754         }
1755 #endif
1756
1757         entry_point = (void (*)(void))images->ep;
1758
1759         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1760                 (ulong)entry_point);
1761
1762         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1763
1764         /*
1765          * INTEGRITY Parameters:
1766          *   None
1767          */
1768         (*entry_point)();
1769
1770         return 1;
1771 }
1772 #endif
1773
1774 #ifdef CONFIG_CMD_BOOTZ
1775
1776 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
1777 {
1778         /* Please define bootz_setup() for your platform */
1779
1780         puts("Your platform's zImage format isn't supported yet!\n");
1781         return -1;
1782 }
1783
1784 /*
1785  * zImage booting support
1786  */
1787 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1788                         char * const argv[], bootm_headers_t *images)
1789 {
1790         int ret;
1791         ulong zi_start, zi_end;
1792
1793         ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
1794                               images, 1);
1795
1796         /* Setup Linux kernel zImage entry point */
1797         if (!argc) {
1798                 images->ep = load_addr;
1799                 debug("*  kernel: default image load address = 0x%08lx\n",
1800                                 load_addr);
1801         } else {
1802                 images->ep = simple_strtoul(argv[0], NULL, 16);
1803                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1804                         images->ep);
1805         }
1806
1807         ret = bootz_setup(images->ep, &zi_start, &zi_end);
1808         if (ret != 0)
1809                 return 1;
1810
1811         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1812
1813         /*
1814          * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
1815          * have a header that provide this informaiton.
1816          */
1817         if (bootm_find_ramdisk(flag, argc, argv))
1818                 return 1;
1819
1820 #if defined(CONFIG_OF_LIBFDT)
1821         if (bootm_find_fdt(flag, argc, argv))
1822                 return 1;
1823 #endif
1824
1825         return 0;
1826 }
1827
1828 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1829 {
1830         int ret;
1831
1832         /* Consume 'bootz' */
1833         argc--; argv++;
1834
1835         if (bootz_start(cmdtp, flag, argc, argv, &images))
1836                 return 1;
1837
1838         /*
1839          * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
1840          * disable interrupts ourselves
1841          */
1842         bootm_disable_interrupts();
1843
1844         images.os.os = IH_OS_LINUX;
1845         ret = do_bootm_states(cmdtp, flag, argc, argv,
1846                               BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
1847                               BOOTM_STATE_OS_GO,
1848                               &images, 1);
1849
1850         return ret;
1851 }
1852
1853 #ifdef CONFIG_SYS_LONGHELP
1854 static char bootz_help_text[] =
1855         "[addr [initrd[:size]] [fdt]]\n"
1856         "    - boot Linux zImage stored in memory\n"
1857         "\tThe argument 'initrd' is optional and specifies the address\n"
1858         "\tof the initrd in memory. The optional argument ':size' allows\n"
1859         "\tspecifying the size of RAW initrd.\n"
1860 #if defined(CONFIG_OF_LIBFDT)
1861         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1862         "\ta third argument is required which is the address of the\n"
1863         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1864         "\tuse a '-' for the second argument. If you do not pass a third\n"
1865         "\ta bd_info struct will be passed instead\n"
1866 #endif
1867         "";
1868 #endif
1869
1870 U_BOOT_CMD(
1871         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1872         "boot Linux zImage image from memory", bootz_help_text
1873 );
1874 #endif  /* CONFIG_CMD_BOOTZ */