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_ramdisk(int flag, int argc, char * const argv[])
 313 {
 314         int ret;
 315
 316         /* find ramdisk */
 317         ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 318                                &images.rd_start, &images.rd_end);
 319         if (ret) {
 320                 puts("Ramdisk image is corrupt or invalid\n");
 321                 return 1;
 322         }
 323
 324         return 0;
 325 }
 326
 327 #if defined(CONFIG_OF_LIBFDT)
 328 static int bootm_find_fdt(int flag, int argc, char * const argv[])
 329 {
 330         int ret;
 331
 332         /* find flattened device tree */
 333         ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
 334                            &images.ft_addr, &images.ft_len);
 335         if (ret) {
 336                 puts("Could not find a valid device tree\n");
 337                 return 1;
 338         }
 339
 340         set_working_fdt_addr(images.ft_addr);
 341
 342         return 0;
 343 }
 344 #endif
 345
 346 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
 347                             char * const argv[])
 348 {
 349         if (((images.os.type == IH_TYPE_KERNEL) ||
 350              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 351              (images.os.type == IH_TYPE_MULTI)) &&
 352             (images.os.os == IH_OS_LINUX)) {
 353                 if (bootm_find_ramdisk(flag, argc, argv))
 354                         return 1;
 355
 356 #if defined(CONFIG_OF_LIBFDT)
 357                 if (bootm_find_fdt(flag, argc, argv))
 358                         return 1;
 359 #endif
 360         }
 361
 362         return 0;
 363 }
 364
 365 #define BOOTM_ERR_RESET         -1
 366 #define BOOTM_ERR_OVERLAP       -2
 367 #define BOOTM_ERR_UNIMPLEMENTED -3
 368 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end,
 369                 int boot_progress)
 370 {
 371         image_info_t os = images->os;
 372         uint8_t comp = os.comp;
 373         ulong load = os.load;
 374         ulong blob_start = os.start;
 375         ulong blob_end = os.end;
 376         ulong image_start = os.image_start;
 377         ulong image_len = os.image_len;
 378         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 379         int no_overlap = 0;
 380         void *load_buf, *image_buf;
 381 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 382         int ret;
 383 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 384
 385         const char *type_name = genimg_get_type_name(os.type);
 386
 387         load_buf = map_sysmem(load, image_len);
 388         image_buf = map_sysmem(image_start, image_len);
 389         switch (comp) {
 390         case IH_COMP_NONE:
 391                 if (load == blob_start || load == image_start) {
 392                         printf("   XIP %s ... ", type_name);
 393                         no_overlap = 1;
 394                 } else {
 395                         printf("   Loading %s ... ", type_name);
 396                         memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
 397                 }
 398                 *load_end = load + image_len;
 399                 break;
 400 #ifdef CONFIG_GZIP
 401         case IH_COMP_GZIP:
 402                 printf("   Uncompressing %s ... ", type_name);
 403                 if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) {
 404                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 405                                 "error - must RESET board to recover\n");
 406                         if (boot_progress)
 407                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 408                         return BOOTM_ERR_RESET;
 409                 }
 410
 411                 *load_end = load + image_len;
 412                 break;
 413 #endif /* CONFIG_GZIP */
 414 #ifdef CONFIG_BZIP2
 415         case IH_COMP_BZIP2:
 416                 printf("   Uncompressing %s ... ", type_name);
 417                 /*
 418                  * If we've got less than 4 MB of malloc() space,
 419                  * use slower decompression algorithm which requires
 420                  * at most 2300 KB of memory.
 421                  */
 422                 int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len,
 423                         image_buf, image_len,
 424                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 425                 if (i != BZ_OK) {
 426                         printf("BUNZIP2: uncompress or overwrite error %d "
 427                                 "- must RESET board to recover\n", i);
 428                         if (boot_progress)
 429                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 430                         return BOOTM_ERR_RESET;
 431                 }
 432
 433                 *load_end = load + unc_len;
 434                 break;
 435 #endif /* CONFIG_BZIP2 */
 436 #ifdef CONFIG_LZMA
 437         case IH_COMP_LZMA: {
 438                 SizeT lzma_len = unc_len;
 439                 printf("   Uncompressing %s ... ", type_name);
 440
 441                 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
 442                                                image_buf, image_len);
 443                 unc_len = lzma_len;
 444                 if (ret != SZ_OK) {
 445                         printf("LZMA: uncompress or overwrite error %d "
 446                                 "- must RESET board to recover\n", ret);
 447                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 448                         return BOOTM_ERR_RESET;
 449                 }
 450                 *load_end = load + unc_len;
 451                 break;
 452         }
 453 #endif /* CONFIG_LZMA */
 454 #ifdef CONFIG_LZO
 455         case IH_COMP_LZO:
 456                 printf("   Uncompressing %s ... ", type_name);
 457
 458                 ret = lzop_decompress(image_buf, image_len, load_buf,
 459                                       &unc_len);
 460                 if (ret != LZO_E_OK) {
 461                         printf("LZO: uncompress or overwrite error %d "
 462                               "- must RESET board to recover\n", ret);
 463                         if (boot_progress)
 464                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 465                         return BOOTM_ERR_RESET;
 466                 }
 467
 468                 *load_end = load + unc_len;
 469                 break;
 470 #endif /* CONFIG_LZO */
 471         default:
 472                 printf("Unimplemented compression type %d\n", comp);
 473                 return BOOTM_ERR_UNIMPLEMENTED;
 474         }
 475
 476         flush_cache(load, (*load_end - load) * sizeof(ulong));
 477
 478         puts("OK\n");
 479         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 480         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 481
 482         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 483                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 484                         blob_start, blob_end);
 485                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 486                         *load_end);
 487
 488                 /* Check what type of image this is. */
 489                 if (images->legacy_hdr_valid) {
 490                         if (image_get_type(&images->legacy_hdr_os_copy)
 491                                         == IH_TYPE_MULTI)
 492                                 puts("WARNING: legacy format multi component image overwritten\n");
 493                         return BOOTM_ERR_OVERLAP;
 494                 } else {
 495                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
 496                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 497                         return BOOTM_ERR_RESET;
 498                 }
 499         }
 500
 501         return 0;
 502 }
 503
 504 static int bootm_start_standalone(int argc, char * const argv[])
 505 {
 506         char  *s;
 507         int   (*appl)(int, char * const []);
 508
 509         /* Don't start if "autostart" is set to "no" */
 510         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 511                 setenv_hex("filesize", images.os.image_len);
 512                 return 0;
 513         }
 514         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
 515         (*appl)(argc, argv);
 516         return 0;
 517 }
 518
 519 /* we overload the cmd field with our state machine info instead of a
 520  * function pointer */
 521 static cmd_tbl_t cmd_bootm_sub[] = {
 522         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 523         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 524 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 525         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 526 #endif
 527 #ifdef CONFIG_OF_LIBFDT
 528         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 529 #endif
 530         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 531         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 532         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 533         U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""),
 534         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 535 };
 536
 537 static int boot_selected_os(int argc, char * const argv[], int state,
 538                 bootm_headers_t *images, boot_os_fn *boot_fn)
 539 {
 540         if (images->os.type == IH_TYPE_STANDALONE) {
 541                 /* This may return when 'autostart' is 'no' */
 542                 bootm_start_standalone(argc, argv);
 543                 return 0;
 544         }
 545 #ifdef CONFIG_SILENT_CONSOLE
 546         if (images->os.os == IH_OS_LINUX)
 547                 fixup_silent_linux();
 548 #endif
 549         arch_preboot_os();
 550         boot_fn(state, argc, argv, images);
 551         if (state == BOOTM_STATE_OS_FAKE_GO) /* We expect to return */
 552                 return 0;
 553         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
 554 #ifdef DEBUG
 555         puts("\n## Control returned to monitor - resetting...\n");
 556 #endif
 557         return BOOTM_ERR_RESET;
 558 }
 559
 560 /**
 561  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
 562  *
 563  * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
 564  *      enabled)
 565  */
 566 static ulong bootm_disable_interrupts(void)
 567 {
 568         ulong iflag;
 569
 570         /*
 571          * We have reached the point of no return: we are going to
 572          * overwrite all exception vector code, so we cannot easily
 573          * recover from any failures any more...
 574          */
 575         iflag = disable_interrupts();
 576 #ifdef CONFIG_NETCONSOLE
 577         /* Stop the ethernet stack if NetConsole could have left it up */
 578         eth_halt();
 579 #endif
 580
 581 #if defined(CONFIG_CMD_USB)
 582         /*
 583          * turn off USB to prevent the host controller from writing to the
 584          * SDRAM while Linux is booting. This could happen (at least for OHCI
 585          * controller), because the HCCA (Host Controller Communication Area)
 586          * lies within the SDRAM and the host controller writes continously to
 587          * this area (as busmaster!). The HccaFrameNumber is for example
 588          * updated every 1 ms within the HCCA structure in SDRAM! For more
 589          * details see the OpenHCI specification.
 590          */
 591         usb_stop();
 592 #endif
 593         return iflag;
 594 }
 595
 596 /**
 597  * Execute selected states of the bootm command.
 598  *
 599  * Note the arguments to this state must be the first argument, Any 'bootm'
 600  * or sub-command arguments must have already been taken.
 601  *
 602  * Note that if states contains more than one flag it MUST contain
 603  * BOOTM_STATE_START, since this handles and consumes the command line args.
 604  *
 605  * Also note that aside from boot_os_fn functions and bootm_load_os no other
 606  * functions we store the return value of in 'ret' may use a negative return
 607  * value, without special handling.
 608  *
 609  * @param cmdtp         Pointer to bootm command table entry
 610  * @param flag          Command flags (CMD_FLAG_...)
 611  * @param argc          Number of subcommand arguments (0 = no arguments)
 612  * @param argv          Arguments
 613  * @param states        Mask containing states to run (BOOTM_STATE_...)
 614  * @param images        Image header information
 615  * @param boot_progress 1 to show boot progress, 0 to not do this
 616  * @return 0 if ok, something else on error. Some errors will cause this
 617  *      function to perform a reboot! If states contains BOOTM_STATE_OS_GO
 618  *      then the intent is to boot an OS, so this function will not return
 619  *      unless the image type is standalone.
 620  */
 621 static int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc,
 622                 char * const argv[], int states, bootm_headers_t *images,
 623                 int boot_progress)
 624 {
 625         boot_os_fn *boot_fn;
 626         ulong iflag = 0;
 627         int ret = 0, need_boot_fn;
 628
 629         images->state |= states;
 630
 631         /*
 632          * Work through the states and see how far we get. We stop on
 633          * any error.
 634          */
 635         if (states & BOOTM_STATE_START)
 636                 ret = bootm_start(cmdtp, flag, argc, argv);
 637
 638         if (!ret && (states & BOOTM_STATE_FINDOS))
 639                 ret = bootm_find_os(cmdtp, flag, argc, argv);
 640
 641         if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
 642                 ret = bootm_find_other(cmdtp, flag, argc, argv);
 643                 argc = 0;       /* consume the args */
 644         }
 645
 646         /* Load the OS */
 647         if (!ret && (states & BOOTM_STATE_LOADOS)) {
 648                 ulong load_end;
 649
 650                 iflag = bootm_disable_interrupts();
 651                 ret = bootm_load_os(images, &load_end, 0);
 652                 if (ret == 0)
 653                         lmb_reserve(&images->lmb, images->os.load,
 654                                     (load_end - images->os.load));
 655                 else if (ret && ret != BOOTM_ERR_OVERLAP)
 656                         goto err;
 657                 else if (ret == BOOTM_ERR_OVERLAP)
 658                         ret = 0;
 659         }
 660
 661         /* Relocate the ramdisk */
 662 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 663         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
 664                 ulong rd_len = images->rd_end - images->rd_start;
 665
 666                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
 667                         rd_len, &images->initrd_start, &images->initrd_end);
 668                 if (!ret) {
 669                         setenv_hex("initrd_start", images->initrd_start);
 670                         setenv_hex("initrd_end", images->initrd_end);
 671                 }
 672         }
 673 #endif
 674 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
 675         if (!ret && (states & BOOTM_STATE_FDT)) {
 676                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
 677                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
 678                                         &images->ft_len);
 679         }
 680 #endif
 681
 682         /* From now on, we need the OS boot function */
 683         if (ret)
 684                 return ret;
 685         boot_fn = boot_os[images->os.os];
 686         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
 687                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
 688                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
 689         if (boot_fn == NULL && need_boot_fn) {
 690                 if (iflag)
 691                         enable_interrupts();
 692                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 693                        genimg_get_os_name(images->os.os), images->os.os);
 694                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 695                 return 1;
 696         }
 697
 698         /* Call various other states that are not generally used */
 699         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
 700                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
 701         if (!ret && (states & BOOTM_STATE_OS_BD_T))
 702                 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
 703         if (!ret && (states & BOOTM_STATE_OS_PREP))
 704                 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
 705
 706         /* Check for unsupported subcommand. */
 707         if (ret) {
 708                 puts("subcommand not supported\n");
 709                 return ret;
 710         }
 711
 712
 713 #ifdef CONFIG_TRACE
 714         /* Pretend to run the OS, then run a user command */
 715         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
 716                 char *cmd_list = getenv("fakegocmd");
 717
 718                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
 719                                 images, boot_fn);
 720                 if (!ret && cmd_list)
 721                         ret = run_command_list(cmd_list, -1, flag);
 722         }
 723 #endif
 724         /* Now run the OS! We hope this doesn't return */
 725         if (!ret && (states & BOOTM_STATE_OS_GO)) {
 726                 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
 727                                 images, boot_fn);
 728                 if (ret)
 729                         goto err;
 730         }
 731
 732         return ret;
 733
 734         /* Deal with any fallout */
 735 err:
 736         if (iflag)
 737                 enable_interrupts();
 738
 739         if (ret == BOOTM_ERR_UNIMPLEMENTED)
 740                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 741         else if (ret == BOOTM_ERR_RESET)
 742                 do_reset(cmdtp, flag, argc, argv);
 743
 744         return ret;
 745 }
 746
 747 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 748                         char * const argv[])
 749 {
 750         int ret = 0;
 751         long state;
 752         cmd_tbl_t *c;
 753
 754         c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 755         argc--; argv++;
 756
 757         if (c) {
 758                 state = (long)c->cmd;
 759                 if (state == BOOTM_STATE_START)
 760                         state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
 761         } else {
 762                 /* Unrecognized command */
 763                 return CMD_RET_USAGE;
 764         }
 765
 766         if (state != BOOTM_STATE_START && images.state >= state) {
 767                 printf("Trying to execute a command out of order\n");
 768                 return CMD_RET_USAGE;
 769         }
 770
 771         ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
 772
 773         return ret;
 774 }
 775
 776 /*******************************************************************/
 777 /* bootm - boot application image from image in memory */
 778 /*******************************************************************/
 779
 780 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 781 {
 782 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 783         static int relocated = 0;
 784
 785         if (!relocated) {
 786                 int i;
 787
 788                 /* relocate boot function table */
 789                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
 790                         if (boot_os[i] != NULL)
 791                                 boot_os[i] += gd->reloc_off;
 792
 793                 /* relocate names of sub-command table */
 794                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
 795                         cmd_bootm_sub[i].name += gd->reloc_off;
 796
 797                 relocated = 1;
 798         }
 799 #endif
 800
 801         /* determine if we have a sub command */
 802         argc--; argv++;
 803         if (argc > 0) {
 804                 char *endp;
 805
 806                 simple_strtoul(argv[0], &endp, 16);
 807                 /* endp pointing to NULL means that argv[0] was just a
 808                  * valid number, pass it along to the normal bootm processing
 809                  *
 810                  * If endp is ':' or '#' assume a FIT identifier so pass
 811                  * along for normal processing.
 812                  *
 813                  * Right now we assume the first arg should never be '-'
 814                  */
 815                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 816                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 817         }
 818
 819         return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
 820                 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
 821                 BOOTM_STATE_LOADOS | BOOTM_STATE_OS_PREP |
 822                 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO, &images, 1);
 823 }
 824
 825 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
 826 {
 827         const char *ep = getenv("autostart");
 828
 829         if (ep && !strcmp(ep, "yes")) {
 830                 char *local_args[2];
 831                 local_args[0] = (char *)cmd;
 832                 local_args[1] = NULL;
 833                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
 834                 return do_bootm(cmdtp, 0, 1, local_args);
 835         }
 836
 837         return 0;
 838 }
 839
 840 /**
 841  * image_get_kernel - verify legacy format kernel image
 842  * @img_addr: in RAM address of the legacy format image to be verified
 843  * @verify: data CRC verification flag
 844  *
 845  * image_get_kernel() verifies legacy image integrity and returns pointer to
 846  * legacy image header if image verification was completed successfully.
 847  *
 848  * returns:
 849  *     pointer to a legacy image header if valid image was found
 850  *     otherwise return NULL
 851  */
 852 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 853 {
 854         image_header_t *hdr = (image_header_t *)img_addr;
 855
 856         if (!image_check_magic(hdr)) {
 857                 puts("Bad Magic Number\n");
 858                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 859                 return NULL;
 860         }
 861         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 862
 863         if (!image_check_hcrc(hdr)) {
 864                 puts("Bad Header Checksum\n");
 865                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 866                 return NULL;
 867         }
 868
 869         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 870         image_print_contents(hdr);
 871
 872         if (verify) {
 873                 puts("   Verifying Checksum ... ");
 874                 if (!image_check_dcrc(hdr)) {
 875                         printf("Bad Data CRC\n");
 876                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 877                         return NULL;
 878                 }
 879                 puts("OK\n");
 880         }
 881         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 882
 883         if (!image_check_target_arch(hdr)) {
 884                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 885                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 886                 return NULL;
 887         }
 888         return hdr;
 889 }
 890
 891 /**
 892  * boot_get_kernel - find kernel image
 893  * @os_data: pointer to a ulong variable, will hold os data start address
 894  * @os_len: pointer to a ulong variable, will hold os data length
 895  *
 896  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 897  * and locates kernel data.
 898  *
 899  * returns:
 900  *     pointer to image header if valid image was found, plus kernel start
 901  *     address and length, otherwise NULL
 902  */
 903 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 904                 char * const argv[], bootm_headers_t *images, ulong *os_data,
 905                 ulong *os_len)
 906 {
 907         image_header_t  *hdr;
 908         ulong           img_addr;
 909         const void *buf;
 910 #if defined(CONFIG_FIT)
 911         const char      *fit_uname_config = NULL;
 912         const char      *fit_uname_kernel = NULL;
 913         int             os_noffset;
 914 #endif
 915
 916         /* find out kernel image address */
 917         if (argc < 1) {
 918                 img_addr = load_addr;
 919                 debug("*  kernel: default image load address = 0x%08lx\n",
 920                                 load_addr);
 921 #if defined(CONFIG_FIT)
 922         } else if (fit_parse_conf(argv[0], load_addr, &img_addr,
 923                                                         &fit_uname_config)) {
 924                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
 925                                 fit_uname_config, img_addr);
 926         } else if (fit_parse_subimage(argv[0], load_addr, &img_addr,
 927                                                         &fit_uname_kernel)) {
 928                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
 929                                 fit_uname_kernel, img_addr);
 930 #endif
 931         } else {
 932                 img_addr = simple_strtoul(argv[0], NULL, 16);
 933                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 934         }
 935
 936         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 937
 938         /* copy from dataflash if needed */
 939         img_addr = genimg_get_image(img_addr);
 940
 941         /* check image type, for FIT images get FIT kernel node */
 942         *os_data = *os_len = 0;
 943         buf = map_sysmem(img_addr, 0);
 944         switch (genimg_get_format(buf)) {
 945         case IMAGE_FORMAT_LEGACY:
 946                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 947                                 img_addr);
 948                 hdr = image_get_kernel(img_addr, images->verify);
 949                 if (!hdr)
 950                         return NULL;
 951                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 952
 953                 /* get os_data and os_len */
 954                 switch (image_get_type(hdr)) {
 955                 case IH_TYPE_KERNEL:
 956                 case IH_TYPE_KERNEL_NOLOAD:
 957                         *os_data = image_get_data(hdr);
 958                         *os_len = image_get_data_size(hdr);
 959                         break;
 960                 case IH_TYPE_MULTI:
 961                         image_multi_getimg(hdr, 0, os_data, os_len);
 962                         break;
 963                 case IH_TYPE_STANDALONE:
 964                         *os_data = image_get_data(hdr);
 965                         *os_len = image_get_data_size(hdr);
 966                         break;
 967                 default:
 968                         printf("Wrong Image Type for %s command\n",
 969                                 cmdtp->name);
 970                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 971                         return NULL;
 972                 }
 973
 974                 /*
 975                  * copy image header to allow for image overwrites during
 976                  * kernel decompression.
 977                  */
 978                 memmove(&images->legacy_hdr_os_copy, hdr,
 979                         sizeof(image_header_t));
 980
 981                 /* save pointer to image header */
 982                 images->legacy_hdr_os = hdr;
 983
 984                 images->legacy_hdr_valid = 1;
 985                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 986                 break;
 987 #if defined(CONFIG_FIT)
 988         case IMAGE_FORMAT_FIT:
 989                 os_noffset = fit_image_load(images, FIT_KERNEL_PROP,
 990                                 img_addr,
 991                                 &fit_uname_kernel, &fit_uname_config,
 992                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
 993                                 BOOTSTAGE_ID_FIT_KERNEL_START,
 994                                 FIT_LOAD_IGNORED, os_data, os_len);
 995                 if (os_noffset < 0)
 996                         return NULL;
 997
 998                 images->fit_hdr_os = map_sysmem(img_addr, 0);
 999                 images->fit_uname_os = fit_uname_kernel;
1000                 images->fit_uname_cfg = fit_uname_config;
1001                 images->fit_noffset_os = os_noffset;
1002                 break;
1003 #endif
1004         default:
1005                 printf("Wrong Image Format for %s command\n", cmdtp->name);
1006                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
1007                 return NULL;
1008         }
1009
1010         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
1011                         *os_data, *os_len, *os_len);
1012
1013         return buf;
1014 }
1015
1016 #ifdef CONFIG_SYS_LONGHELP
1017 static char bootm_help_text[] =
1018         "[addr [arg ...]]\n    - boot application image stored in memory\n"
1019         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
1020         "\t'arg' can be the address of an initrd image\n"
1021 #if defined(CONFIG_OF_LIBFDT)
1022         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1023         "\ta third argument is required which is the address of the\n"
1024         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1025         "\tuse a '-' for the second argument. If you do not pass a third\n"
1026         "\ta bd_info struct will be passed instead\n"
1027 #endif
1028 #if defined(CONFIG_FIT)
1029         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1030         "\tmust be extened to include component or configuration unit name:\n"
1031         "\taddr:<subimg_uname> - direct component image specification\n"
1032         "\taddr#<conf_uname>   - configuration specification\n"
1033         "\tUse iminfo command to get the list of existing component\n"
1034         "\timages and configurations.\n"
1035 #endif
1036         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1037         "must be\n"
1038         "issued in the order below (it's ok to not issue all sub-commands):\n"
1039         "\tstart [addr [arg ...]]\n"
1040         "\tloados  - load OS image\n"
1041 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
1042         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1043 #endif
1044 #if defined(CONFIG_OF_LIBFDT)
1045         "\tfdt     - relocate flat device tree\n"
1046 #endif
1047         "\tcmdline - OS specific command line processing/setup\n"
1048         "\tbdt     - OS specific bd_t processing\n"
1049         "\tprep    - OS specific prep before relocation or go\n"
1050         "\tgo      - start OS";
1051 #endif
1052
1053 U_BOOT_CMD(
1054         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1055         "boot application image from memory", bootm_help_text
1056 );
1057
1058 /*******************************************************************/
1059 /* bootd - boot default image */
1060 /*******************************************************************/
1061 #if defined(CONFIG_CMD_BOOTD)
1062 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1063 {
1064         int rcode = 0;
1065
1066         if (run_command(getenv("bootcmd"), flag) < 0)
1067                 rcode = 1;
1068         return rcode;
1069 }
1070
1071 U_BOOT_CMD(
1072         boot,   1,      1,      do_bootd,
1073         "boot default, i.e., run 'bootcmd'",
1074         ""
1075 );
1076
1077 /* keep old command name "bootd" for backward compatibility */
1078 U_BOOT_CMD(
1079         bootd, 1,       1,      do_bootd,
1080         "boot default, i.e., run 'bootcmd'",
1081         ""
1082 );
1083
1084 #endif
1085
1086
1087 /*******************************************************************/
1088 /* iminfo - print header info for a requested image */
1089 /*******************************************************************/
1090 #if defined(CONFIG_CMD_IMI)
1091 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1092 {
1093         int     arg;
1094         ulong   addr;
1095         int     rcode = 0;
1096
1097         if (argc < 2) {
1098                 return image_info(load_addr);
1099         }
1100
1101         for (arg = 1; arg < argc; ++arg) {
1102                 addr = simple_strtoul(argv[arg], NULL, 16);
1103                 if (image_info(addr) != 0)
1104                         rcode = 1;
1105         }
1106         return rcode;
1107 }
1108
1109 static int image_info(ulong addr)
1110 {
1111         void *hdr = (void *)addr;
1112
1113         printf("\n## Checking Image at %08lx ...\n", addr);
1114
1115         switch (genimg_get_format(hdr)) {
1116         case IMAGE_FORMAT_LEGACY:
1117                 puts("   Legacy image found\n");
1118                 if (!image_check_magic(hdr)) {
1119                         puts("   Bad Magic Number\n");
1120                         return 1;
1121                 }
1122
1123                 if (!image_check_hcrc(hdr)) {
1124                         puts("   Bad Header Checksum\n");
1125                         return 1;
1126                 }
1127
1128                 image_print_contents(hdr);
1129
1130                 puts("   Verifying Checksum ... ");
1131                 if (!image_check_dcrc(hdr)) {
1132                         puts("   Bad Data CRC\n");
1133                         return 1;
1134                 }
1135                 puts("OK\n");
1136                 return 0;
1137 #if defined(CONFIG_FIT)
1138         case IMAGE_FORMAT_FIT:
1139                 puts("   FIT image found\n");
1140
1141                 if (!fit_check_format(hdr)) {
1142                         puts("Bad FIT image format!\n");
1143                         return 1;
1144                 }
1145
1146                 fit_print_contents(hdr);
1147
1148                 if (!fit_all_image_verify(hdr)) {
1149                         puts("Bad hash in FIT image!\n");
1150                         return 1;
1151                 }
1152
1153                 return 0;
1154 #endif
1155         default:
1156                 puts("Unknown image format!\n");
1157                 break;
1158         }
1159
1160         return 1;
1161 }
1162
1163 U_BOOT_CMD(
1164         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1165         "print header information for application image",
1166         "addr [addr ...]\n"
1167         "    - print header information for application image starting at\n"
1168         "      address 'addr' in memory; this includes verification of the\n"
1169         "      image contents (magic number, header and payload checksums)"
1170 );
1171 #endif
1172
1173
1174 /*******************************************************************/
1175 /* imls - list all images found in flash */
1176 /*******************************************************************/
1177 #if defined(CONFIG_CMD_IMLS)
1178 static int do_imls_nor(void)
1179 {
1180         flash_info_t *info;
1181         int i, j;
1182         void *hdr;
1183
1184         for (i = 0, info = &flash_info[0];
1185                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1186
1187                 if (info->flash_id == FLASH_UNKNOWN)
1188                         goto next_bank;
1189                 for (j = 0; j < info->sector_count; ++j) {
1190
1191                         hdr = (void *)info->start[j];
1192                         if (!hdr)
1193                                 goto next_sector;
1194
1195                         switch (genimg_get_format(hdr)) {
1196                         case IMAGE_FORMAT_LEGACY:
1197                                 if (!image_check_hcrc(hdr))
1198                                         goto next_sector;
1199
1200                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1201                                 image_print_contents(hdr);
1202
1203                                 puts("   Verifying Checksum ... ");
1204                                 if (!image_check_dcrc(hdr)) {
1205                                         puts("Bad Data CRC\n");
1206                                 } else {
1207                                         puts("OK\n");
1208                                 }
1209                                 break;
1210 #if defined(CONFIG_FIT)
1211                         case IMAGE_FORMAT_FIT:
1212                                 if (!fit_check_format(hdr))
1213                                         goto next_sector;
1214
1215                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1216                                 fit_print_contents(hdr);
1217                                 break;
1218 #endif
1219                         default:
1220                                 goto next_sector;
1221                         }
1222
1223 next_sector:            ;
1224                 }
1225 next_bank:      ;
1226         }
1227         return 0;
1228 }
1229 #endif
1230
1231 #if defined(CONFIG_CMD_IMLS_NAND)
1232 static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
1233                 size_t len)
1234 {
1235         void *imgdata;
1236         int ret;
1237
1238         imgdata = malloc(len);
1239         if (!imgdata) {
1240                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
1241                                 nand_dev, off);
1242                 printf("   Low memory(cannot allocate memory for image)\n");
1243                 return -ENOMEM;
1244         }
1245
1246         ret = nand_read_skip_bad(nand, off, &len,
1247                         imgdata);
1248         if (ret < 0 && ret != -EUCLEAN) {
1249                 free(imgdata);
1250                 return ret;
1251         }
1252
1253         if (!image_check_hcrc(imgdata)) {
1254                 free(imgdata);
1255                 return 0;
1256         }
1257
1258         printf("Legacy Image at NAND device %d offset %08llX:\n",
1259                         nand_dev, off);
1260         image_print_contents(imgdata);
1261
1262         puts("   Verifying Checksum ... ");
1263         if (!image_check_dcrc(imgdata))
1264                 puts("Bad Data CRC\n");
1265         else
1266                 puts("OK\n");
1267
1268         free(imgdata);
1269
1270         return 0;
1271 }
1272
1273 static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
1274                 size_t len)
1275 {
1276         void *imgdata;
1277         int ret;
1278
1279         imgdata = malloc(len);
1280         if (!imgdata) {
1281                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
1282                                 nand_dev, off);
1283                 printf("   Low memory(cannot allocate memory for image)\n");
1284                 return -ENOMEM;
1285         }
1286
1287         ret = nand_read_skip_bad(nand, off, &len,
1288                         imgdata);
1289         if (ret < 0 && ret != -EUCLEAN) {
1290                 free(imgdata);
1291                 return ret;
1292         }
1293
1294         if (!fit_check_format(imgdata)) {
1295                 free(imgdata);
1296                 return 0;
1297         }
1298
1299         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
1300
1301         fit_print_contents(imgdata);
1302         free(imgdata);
1303
1304         return 0;
1305 }
1306
1307 static int do_imls_nand(void)
1308 {
1309         nand_info_t *nand;
1310         int nand_dev = nand_curr_device;
1311         size_t len;
1312         loff_t off;
1313         u32 buffer[16];
1314
1315         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
1316                 puts("\nNo NAND devices available\n");
1317                 return -ENODEV;
1318         }
1319
1320         printf("\n");
1321
1322         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
1323                 nand = &nand_info[nand_dev];
1324                 if (!nand->name || !nand->size)
1325                         continue;
1326
1327                 for (off = 0; off < nand->size; off += nand->erasesize) {
1328                         const image_header_t *header;
1329                         int ret;
1330
1331                         if (nand_block_isbad(nand, off))
1332                                 continue;
1333
1334                         len = sizeof(buffer);
1335
1336                         ret = nand_read(nand, off, &len, (u8 *)buffer);
1337                         if (ret < 0 && ret != -EUCLEAN) {
1338                                 printf("NAND read error %d at offset %08llX\n",
1339                                                 ret, off);
1340                                 continue;
1341                         }
1342
1343                         switch (genimg_get_format(buffer)) {
1344                         case IMAGE_FORMAT_LEGACY:
1345                                 header = (const image_header_t *)buffer;
1346
1347                                 len = image_get_image_size(header);
1348                                 nand_imls_legacyimage(nand, nand_dev, off, len);
1349                                 break;
1350 #if defined(CONFIG_FIT)
1351                         case IMAGE_FORMAT_FIT:
1352                                 len = fit_get_size(buffer);
1353                                 nand_imls_fitimage(nand, nand_dev, off, len);
1354                                 break;
1355 #endif
1356                         }
1357                 }
1358         }
1359
1360         return 0;
1361 }
1362 #endif
1363
1364 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
1365 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1366 {
1367         int ret_nor = 0, ret_nand = 0;
1368
1369 #if defined(CONFIG_CMD_IMLS)
1370         ret_nor = do_imls_nor();
1371 #endif
1372
1373 #if defined(CONFIG_CMD_IMLS_NAND)
1374         ret_nand = do_imls_nand();
1375 #endif
1376
1377         if (ret_nor)
1378                 return ret_nor;
1379
1380         if (ret_nand)
1381                 return ret_nand;
1382
1383         return (0);
1384 }
1385
1386 U_BOOT_CMD(
1387         imls,   1,              1,      do_imls,
1388         "list all images found in flash",
1389         "\n"
1390         "    - Prints information about all images found at sector/block\n"
1391         "      boundaries in nor/nand flash."
1392 );
1393 #endif
1394
1395 /*******************************************************************/
1396 /* helper routines */
1397 /*******************************************************************/
1398 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
1399
1400 #define CONSOLE_ARG     "console="
1401 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
1402
1403 static void fixup_silent_linux(void)
1404 {
1405         char *buf;
1406         const char *env_val;
1407         char *cmdline = getenv("bootargs");
1408
1409         /* Only fix cmdline when requested */
1410         if (!(gd->flags & GD_FLG_SILENT))
1411                 return;
1412
1413         debug("before silent fix-up: %s\n", cmdline);
1414         if (cmdline && (cmdline[0] != '\0')) {
1415                 char *start = strstr(cmdline, CONSOLE_ARG);
1416
1417                 /* Allocate space for maximum possible new command line */
1418                 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
1419                 if (!buf) {
1420                         debug("%s: out of memory\n", __func__);
1421                         return;
1422                 }
1423
1424                 if (start) {
1425                         char *end = strchr(start, ' ');
1426                         int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
1427
1428                         strncpy(buf, cmdline, num_start_bytes);
1429                         if (end)
1430                                 strcpy(buf + num_start_bytes, end);
1431                         else
1432                                 buf[num_start_bytes] = '\0';
1433                 } else {
1434                         sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
1435                 }
1436                 env_val = buf;
1437         } else {
1438                 buf = NULL;
1439                 env_val = CONSOLE_ARG;
1440         }
1441
1442         setenv("bootargs", env_val);
1443         debug("after silent fix-up: %s\n", env_val);
1444         free(buf);
1445 }
1446 #endif /* CONFIG_SILENT_CONSOLE */
1447
1448 #if defined(CONFIG_BOOTM_NETBSD) || defined(CONFIG_BOOTM_PLAN9)
1449 static void copy_args(char *dest, int argc, char * const argv[], char delim)
1450 {
1451         int i;
1452
1453         for (i = 0; i < argc; i++) {
1454                 if (i > 0)
1455                         *dest++ = delim;
1456                 strcpy(dest, argv[i]);
1457                 dest += strlen(argv[i]);
1458         }
1459 }
1460 #endif
1461
1462 /*******************************************************************/
1463 /* OS booting routines */
1464 /*******************************************************************/
1465
1466 #ifdef CONFIG_BOOTM_NETBSD
1467 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1468                             bootm_headers_t *images)
1469 {
1470         void (*loader)(bd_t *, image_header_t *, char *, char *);
1471         image_header_t *os_hdr, *hdr;
1472         ulong kernel_data, kernel_len;
1473         char *consdev;
1474         char *cmdline;
1475
1476         if (flag & BOOTM_STATE_OS_PREP)
1477                 return 0;
1478         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1479                 return 1;
1480
1481 #if defined(CONFIG_FIT)
1482         if (!images->legacy_hdr_valid) {
1483                 fit_unsupported_reset("NetBSD");
1484                 return 1;
1485         }
1486 #endif
1487         hdr = images->legacy_hdr_os;
1488
1489         /*
1490          * Booting a (NetBSD) kernel image
1491          *
1492          * This process is pretty similar to a standalone application:
1493          * The (first part of an multi-) image must be a stage-2 loader,
1494          * which in turn is responsible for loading & invoking the actual
1495          * kernel.  The only differences are the parameters being passed:
1496          * besides the board info strucure, the loader expects a command
1497          * line, the name of the console device, and (optionally) the
1498          * address of the original image header.
1499          */
1500         os_hdr = NULL;
1501         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1502                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1503                 if (kernel_len)
1504                         os_hdr = hdr;
1505         }
1506
1507         consdev = "";
1508 #if   defined(CONFIG_8xx_CONS_SMC1)
1509         consdev = "smc1";
1510 #elif defined(CONFIG_8xx_CONS_SMC2)
1511         consdev = "smc2";
1512 #elif defined(CONFIG_8xx_CONS_SCC2)
1513         consdev = "scc2";
1514 #elif defined(CONFIG_8xx_CONS_SCC3)
1515         consdev = "scc3";
1516 #endif
1517
1518         if (argc > 0) {
1519                 ulong len;
1520                 int   i;
1521
1522                 for (i = 0, len = 0; i < argc; i += 1)
1523                         len += strlen(argv[i]) + 1;
1524                 cmdline = malloc(len);
1525                 copy_args(cmdline, argc, argv, ' ');
1526         } else if ((cmdline = getenv("bootargs")) == NULL) {
1527                 cmdline = "";
1528         }
1529
1530         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1531
1532         printf("## Transferring control to NetBSD stage-2 loader "
1533                 "(at address %08lx) ...\n",
1534                 (ulong)loader);
1535
1536         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1537
1538         /*
1539          * NetBSD Stage-2 Loader Parameters:
1540          *   r3: ptr to board info data
1541          *   r4: image address
1542          *   r5: console device
1543          *   r6: boot args string
1544          */
1545         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1546
1547         return 1;
1548 }
1549 #endif /* CONFIG_BOOTM_NETBSD*/
1550
1551 #ifdef CONFIG_LYNXKDI
1552 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1553                              bootm_headers_t *images)
1554 {
1555         image_header_t *hdr = &images->legacy_hdr_os_copy;
1556
1557         if (flag & BOOTM_STATE_OS_PREP)
1558                 return 0;
1559         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1560                 return 1;
1561
1562 #if defined(CONFIG_FIT)
1563         if (!images->legacy_hdr_valid) {
1564                 fit_unsupported_reset("Lynx");
1565                 return 1;
1566         }
1567 #endif
1568
1569         lynxkdi_boot((image_header_t *)hdr);
1570
1571         return 1;
1572 }
1573 #endif /* CONFIG_LYNXKDI */
1574
1575 #ifdef CONFIG_BOOTM_RTEMS
1576 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1577                            bootm_headers_t *images)
1578 {
1579         void (*entry_point)(bd_t *);
1580
1581         if (flag & BOOTM_STATE_OS_PREP)
1582                 return 0;
1583         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1584                 return 1;
1585
1586 #if defined(CONFIG_FIT)
1587         if (!images->legacy_hdr_valid) {
1588                 fit_unsupported_reset("RTEMS");
1589                 return 1;
1590         }
1591 #endif
1592
1593         entry_point = (void (*)(bd_t *))images->ep;
1594
1595         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1596                 (ulong)entry_point);
1597
1598         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1599
1600         /*
1601          * RTEMS Parameters:
1602          *   r3: ptr to board info data
1603          */
1604         (*entry_point)(gd->bd);
1605
1606         return 1;
1607 }
1608 #endif /* CONFIG_BOOTM_RTEMS */
1609
1610 #if defined(CONFIG_BOOTM_OSE)
1611 static int do_bootm_ose(int flag, int argc, char * const argv[],
1612                            bootm_headers_t *images)
1613 {
1614         void (*entry_point)(void);
1615
1616         if (flag & BOOTM_STATE_OS_PREP)
1617                 return 0;
1618         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1619                 return 1;
1620
1621 #if defined(CONFIG_FIT)
1622         if (!images->legacy_hdr_valid) {
1623                 fit_unsupported_reset("OSE");
1624                 return 1;
1625         }
1626 #endif
1627
1628         entry_point = (void (*)(void))images->ep;
1629
1630         printf("## Transferring control to OSE (at address %08lx) ...\n",
1631                 (ulong)entry_point);
1632
1633         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1634
1635         /*
1636          * OSE Parameters:
1637          *   None
1638          */
1639         (*entry_point)();
1640
1641         return 1;
1642 }
1643 #endif /* CONFIG_BOOTM_OSE */
1644
1645 #if defined(CONFIG_BOOTM_PLAN9)
1646 static int do_bootm_plan9(int flag, int argc, char * const argv[],
1647                            bootm_headers_t *images)
1648 {
1649         void (*entry_point)(void);
1650         char *s;
1651
1652         if (flag & BOOTM_STATE_OS_PREP)
1653                 return 0;
1654         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1655                 return 1;
1656
1657 #if defined(CONFIG_FIT)
1658         if (!images->legacy_hdr_valid) {
1659                 fit_unsupported_reset("Plan 9");
1660                 return 1;
1661         }
1662 #endif
1663
1664         /* See README.plan9 */
1665         s = getenv("confaddr");
1666         if (s != NULL) {
1667                 char *confaddr = (char *)simple_strtoul(s, NULL, 16);
1668
1669                 if (argc > 0) {
1670                         copy_args(confaddr, argc, argv, '\n');
1671                 } else {
1672                         s = getenv("bootargs");
1673                         if (s != NULL)
1674                                 strcpy(confaddr, s);
1675                 }
1676         }
1677
1678         entry_point = (void (*)(void))images->ep;
1679
1680         printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
1681                 (ulong)entry_point);
1682
1683         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1684
1685         /*
1686          * Plan 9 Parameters:
1687          *   None
1688          */
1689         (*entry_point)();
1690
1691         return 1;
1692 }
1693 #endif /* CONFIG_BOOTM_PLAN9 */
1694
1695 #if defined(CONFIG_CMD_ELF)
1696 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1697                              bootm_headers_t *images)
1698 {
1699         char str[80];
1700
1701         if (flag & BOOTM_STATE_OS_PREP)
1702                 return 0;
1703         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1704                 return 1;
1705
1706 #if defined(CONFIG_FIT)
1707         if (!images->legacy_hdr_valid) {
1708                 fit_unsupported_reset("VxWorks");
1709                 return 1;
1710         }
1711 #endif
1712
1713         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1714         setenv("loadaddr", str);
1715         do_bootvx(NULL, 0, 0, NULL);
1716
1717         return 1;
1718 }
1719
1720 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1721                             bootm_headers_t *images)
1722 {
1723         char *local_args[2];
1724         char str[16];
1725
1726         if (flag & BOOTM_STATE_OS_PREP)
1727                 return 0;
1728         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1729                 return 1;
1730
1731 #if defined(CONFIG_FIT)
1732         if (!images->legacy_hdr_valid) {
1733                 fit_unsupported_reset("QNX");
1734                 return 1;
1735         }
1736 #endif
1737
1738         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1739         local_args[0] = argv[0];
1740         local_args[1] = str;    /* and provide it via the arguments */
1741         do_bootelf(NULL, 0, 2, local_args);
1742
1743         return 1;
1744 }
1745 #endif
1746
1747 #ifdef CONFIG_INTEGRITY
1748 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1749                            bootm_headers_t *images)
1750 {
1751         void (*entry_point)(void);
1752
1753         if (flag & BOOTM_STATE_OS_PREP)
1754                 return 0;
1755         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1756                 return 1;
1757
1758 #if defined(CONFIG_FIT)
1759         if (!images->legacy_hdr_valid) {
1760                 fit_unsupported_reset("INTEGRITY");
1761                 return 1;
1762         }
1763 #endif
1764
1765         entry_point = (void (*)(void))images->ep;
1766
1767         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1768                 (ulong)entry_point);
1769
1770         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1771
1772         /*
1773          * INTEGRITY Parameters:
1774          *   None
1775          */
1776         (*entry_point)();
1777
1778         return 1;
1779 }
1780 #endif
1781
1782 #ifdef CONFIG_CMD_BOOTZ
1783
1784 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
1785 {
1786         /* Please define bootz_setup() for your platform */
1787
1788         puts("Your platform's zImage format isn't supported yet!\n");
1789         return -1;
1790 }
1791
1792 /*
1793  * zImage booting support
1794  */
1795 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1796                         char * const argv[], bootm_headers_t *images)
1797 {
1798         int ret;
1799         ulong zi_start, zi_end;
1800
1801         ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
1802                               images, 1);
1803
1804         /* Setup Linux kernel zImage entry point */
1805         if (!argc) {
1806                 images->ep = load_addr;
1807                 debug("*  kernel: default image load address = 0x%08lx\n",
1808                                 load_addr);
1809         } else {
1810                 images->ep = simple_strtoul(argv[0], NULL, 16);
1811                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1812                         images->ep);
1813         }
1814
1815         ret = bootz_setup(images->ep, &zi_start, &zi_end);
1816         if (ret != 0)
1817                 return 1;
1818
1819         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1820
1821         /*
1822          * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
1823          * have a header that provide this informaiton.
1824          */
1825         if (bootm_find_ramdisk(flag, argc, argv))
1826                 return 1;
1827
1828 #if defined(CONFIG_OF_LIBFDT)
1829         if (bootm_find_fdt(flag, argc, argv))
1830                 return 1;
1831 #endif
1832
1833         return 0;
1834 }
1835
1836 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1837 {
1838         int ret;
1839
1840         /* Consume 'bootz' */
1841         argc--; argv++;
1842
1843         if (bootz_start(cmdtp, flag, argc, argv, &images))
1844                 return 1;
1845
1846         /*
1847          * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
1848          * disable interrupts ourselves
1849          */
1850         bootm_disable_interrupts();
1851
1852         images.os.os = IH_OS_LINUX;
1853         ret = do_bootm_states(cmdtp, flag, argc, argv,
1854                               BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
1855                               BOOTM_STATE_OS_GO,
1856                               &images, 1);
1857
1858         return ret;
1859 }
1860
1861 #ifdef CONFIG_SYS_LONGHELP
1862 static char bootz_help_text[] =
1863         "[addr [initrd[:size]] [fdt]]\n"
1864         "    - boot Linux zImage stored in memory\n"
1865         "\tThe argument 'initrd' is optional and specifies the address\n"
1866         "\tof the initrd in memory. The optional argument ':size' allows\n"
1867         "\tspecifying the size of RAW initrd.\n"
1868 #if defined(CONFIG_OF_LIBFDT)
1869         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1870         "\ta third argument is required which is the address of the\n"
1871         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1872         "\tuse a '-' for the second argument. If you do not pass a third\n"
1873         "\ta bd_info struct will be passed instead\n"
1874 #endif
1875         "";
1876 #endif
1877
1878 U_BOOT_CMD(
1879         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1880         "boot Linux zImage image from memory", bootz_help_text
1881 );
1882 #endif  /* CONFIG_CMD_BOOTZ */