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 <linux/compiler.h>
  40
  41 #if defined(CONFIG_CMD_USB)
  42 #include <usb.h>
  43 #endif
  44
  45 #ifdef CONFIG_SYS_HUSH_PARSER
  46 #include <hush.h>
  47 #endif
  48
  49 #if defined(CONFIG_OF_LIBFDT)
  50 #include <fdt.h>
  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 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  84 #endif
  85
  86 #ifdef CONFIG_SILENT_CONSOLE
  87 static void fixup_silent_linux(void);
  88 #endif
  89
  90 static image_header_t *image_get_kernel(ulong img_addr, int verify);
  91 #if defined(CONFIG_FIT)
  92 static int fit_check_kernel(const void *fit, int os_noffset, int verify);
  93 #endif
  94
  95 static void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
  96                                 char * const argv[], bootm_headers_t *images,
  97                                 ulong *os_data, ulong *os_len);
  98
  99 /*
 100  *  Continue booting an OS image; caller already has:
 101  *  - copied image header to global variable `header'
 102  *  - checked header magic number, checksums (both header & image),
 103  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
 104  *  - loaded (first part of) image to header load address,
 105  *  - disabled interrupts.
 106  */
 107 typedef int boot_os_fn(int flag, int argc, char * const argv[],
 108                         bootm_headers_t *images); /* pointers to os/initrd/fdt */
 109
 110 #ifdef CONFIG_BOOTM_LINUX
 111 extern boot_os_fn do_bootm_linux;
 112 #endif
 113 #ifdef CONFIG_BOOTM_NETBSD
 114 static boot_os_fn do_bootm_netbsd;
 115 #endif
 116 #if defined(CONFIG_LYNXKDI)
 117 static boot_os_fn do_bootm_lynxkdi;
 118 extern void lynxkdi_boot(image_header_t *);
 119 #endif
 120 #ifdef CONFIG_BOOTM_RTEMS
 121 static boot_os_fn do_bootm_rtems;
 122 #endif
 123 #if defined(CONFIG_BOOTM_OSE)
 124 static boot_os_fn do_bootm_ose;
 125 #endif
 126 #if defined(CONFIG_CMD_ELF)
 127 static boot_os_fn do_bootm_vxworks;
 128 static boot_os_fn do_bootm_qnxelf;
 129 int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 130 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 131 #endif
 132 #if defined(CONFIG_INTEGRITY)
 133 static boot_os_fn do_bootm_integrity;
 134 #endif
 135
 136 static boot_os_fn *boot_os[] = {
 137 #ifdef CONFIG_BOOTM_LINUX
 138         [IH_OS_LINUX] = do_bootm_linux,
 139 #endif
 140 #ifdef CONFIG_BOOTM_NETBSD
 141         [IH_OS_NETBSD] = do_bootm_netbsd,
 142 #endif
 143 #ifdef CONFIG_LYNXKDI
 144         [IH_OS_LYNXOS] = do_bootm_lynxkdi,
 145 #endif
 146 #ifdef CONFIG_BOOTM_RTEMS
 147         [IH_OS_RTEMS] = do_bootm_rtems,
 148 #endif
 149 #if defined(CONFIG_BOOTM_OSE)
 150         [IH_OS_OSE] = do_bootm_ose,
 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 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 static inline void boot_start_lmb(bootm_headers_t *images) { }
 190 #endif
 191
 192 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 193 {
 194         void            *os_hdr;
 195         int             ret;
 196
 197         memset((void *)&images, 0, sizeof(images));
 198         images.verify = getenv_yesno("verify");
 199
 200         boot_start_lmb(&images);
 201
 202         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
 203
 204         /* get kernel image header, start address and length */
 205         os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
 206                         &images, &images.os.image_start, &images.os.image_len);
 207         if (images.os.image_len == 0) {
 208                 puts("ERROR: can't get kernel image!\n");
 209                 return 1;
 210         }
 211
 212         /* get image parameters */
 213         switch (genimg_get_format(os_hdr)) {
 214         case IMAGE_FORMAT_LEGACY:
 215                 images.os.type = image_get_type(os_hdr);
 216                 images.os.comp = image_get_comp(os_hdr);
 217                 images.os.os = image_get_os(os_hdr);
 218
 219                 images.os.end = image_get_image_end(os_hdr);
 220                 images.os.load = image_get_load(os_hdr);
 221                 break;
 222 #if defined(CONFIG_FIT)
 223         case IMAGE_FORMAT_FIT:
 224                 if (fit_image_get_type(images.fit_hdr_os,
 225                                         images.fit_noffset_os, &images.os.type)) {
 226                         puts("Can't get image type!\n");
 227                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 228                         return 1;
 229                 }
 230
 231                 if (fit_image_get_comp(images.fit_hdr_os,
 232                                         images.fit_noffset_os, &images.os.comp)) {
 233                         puts("Can't get image compression!\n");
 234                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 235                         return 1;
 236                 }
 237
 238                 if (fit_image_get_os(images.fit_hdr_os,
 239                                         images.fit_noffset_os, &images.os.os)) {
 240                         puts("Can't get image OS!\n");
 241                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 242                         return 1;
 243                 }
 244
 245                 images.os.end = fit_get_end(images.fit_hdr_os);
 246
 247                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 248                                         &images.os.load)) {
 249                         puts("Can't get image load address!\n");
 250                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 251                         return 1;
 252                 }
 253                 break;
 254 #endif
 255         default:
 256                 puts("ERROR: unknown image format type!\n");
 257                 return 1;
 258         }
 259
 260         /* find kernel entry point */
 261         if (images.legacy_hdr_valid) {
 262                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 263 #if defined(CONFIG_FIT)
 264         } else if (images.fit_uname_os) {
 265                 ret = fit_image_get_entry(images.fit_hdr_os,
 266                                 images.fit_noffset_os, &images.ep);
 267                 if (ret) {
 268                         puts("Can't get entry point property!\n");
 269                         return 1;
 270                 }
 271 #endif
 272         } else {
 273                 puts("Could not find kernel entry point!\n");
 274                 return 1;
 275         }
 276
 277         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 278                 images.os.load = images.os.image_start;
 279                 images.ep += images.os.load;
 280         }
 281
 282         if (((images.os.type == IH_TYPE_KERNEL) ||
 283              (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
 284              (images.os.type == IH_TYPE_MULTI)) &&
 285             (images.os.os == IH_OS_LINUX)) {
 286                 /* find ramdisk */
 287                 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
 288                                 &images.rd_start, &images.rd_end);
 289                 if (ret) {
 290                         puts("Ramdisk image is corrupt or invalid\n");
 291                         return 1;
 292                 }
 293
 294 #if defined(CONFIG_OF_LIBFDT)
 295                 /* find flattened device tree */
 296                 ret = boot_get_fdt(flag, argc, argv, &images,
 297                                    &images.ft_addr, &images.ft_len);
 298                 if (ret) {
 299                         puts("Could not find a valid device tree\n");
 300                         return 1;
 301                 }
 302
 303                 set_working_fdt_addr(images.ft_addr);
 304 #endif
 305         }
 306
 307         images.os.start = (ulong)os_hdr;
 308         images.state = BOOTM_STATE_START;
 309
 310         return 0;
 311 }
 312
 313 #define BOOTM_ERR_RESET         -1
 314 #define BOOTM_ERR_OVERLAP       -2
 315 #define BOOTM_ERR_UNIMPLEMENTED -3
 316 static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
 317 {
 318         uint8_t comp = os.comp;
 319         ulong load = os.load;
 320         ulong blob_start = os.start;
 321         ulong blob_end = os.end;
 322         ulong image_start = os.image_start;
 323         ulong image_len = os.image_len;
 324         __maybe_unused uint unc_len = CONFIG_SYS_BOOTM_LEN;
 325         int no_overlap = 0;
 326 #if defined(CONFIG_LZMA) || defined(CONFIG_LZO)
 327         int ret;
 328 #endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */
 329
 330         const char *type_name = genimg_get_type_name(os.type);
 331
 332         switch (comp) {
 333         case IH_COMP_NONE:
 334                 if (load == blob_start || load == image_start) {
 335                         printf("   XIP %s ... ", type_name);
 336                         no_overlap = 1;
 337                 } else {
 338                         printf("   Loading %s ... ", type_name);
 339                         memmove_wd((void *)load, (void *)image_start,
 340                                         image_len, CHUNKSZ);
 341                 }
 342                 *load_end = load + image_len;
 343                 puts("OK\n");
 344                 break;
 345 #ifdef CONFIG_GZIP
 346         case IH_COMP_GZIP:
 347                 printf("   Uncompressing %s ... ", type_name);
 348                 if (gunzip((void *)load, unc_len,
 349                                 (uchar *)image_start, &image_len) != 0) {
 350                         puts("GUNZIP: uncompress, out-of-mem or overwrite "
 351                                 "error - must RESET board to recover\n");
 352                         if (boot_progress)
 353                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 354                         return BOOTM_ERR_RESET;
 355                 }
 356
 357                 *load_end = load + image_len;
 358                 break;
 359 #endif /* CONFIG_GZIP */
 360 #ifdef CONFIG_BZIP2
 361         case IH_COMP_BZIP2:
 362                 printf("   Uncompressing %s ... ", type_name);
 363                 /*
 364                  * If we've got less than 4 MB of malloc() space,
 365                  * use slower decompression algorithm which requires
 366                  * at most 2300 KB of memory.
 367                  */
 368                 int i = BZ2_bzBuffToBuffDecompress((char *)load,
 369                                         &unc_len, (char *)image_start, image_len,
 370                                         CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
 371                 if (i != BZ_OK) {
 372                         printf("BUNZIP2: uncompress or overwrite error %d "
 373                                 "- must RESET board to recover\n", i);
 374                         if (boot_progress)
 375                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 376                         return BOOTM_ERR_RESET;
 377                 }
 378
 379                 *load_end = load + unc_len;
 380                 break;
 381 #endif /* CONFIG_BZIP2 */
 382 #ifdef CONFIG_LZMA
 383         case IH_COMP_LZMA: {
 384                 SizeT lzma_len = unc_len;
 385                 printf("   Uncompressing %s ... ", type_name);
 386
 387                 ret = lzmaBuffToBuffDecompress(
 388                         (unsigned char *)load, &lzma_len,
 389                         (unsigned char *)image_start, image_len);
 390                 unc_len = lzma_len;
 391                 if (ret != SZ_OK) {
 392                         printf("LZMA: uncompress or overwrite error %d "
 393                                 "- must RESET board to recover\n", ret);
 394                         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 395                         return BOOTM_ERR_RESET;
 396                 }
 397                 *load_end = load + unc_len;
 398                 break;
 399         }
 400 #endif /* CONFIG_LZMA */
 401 #ifdef CONFIG_LZO
 402         case IH_COMP_LZO:
 403                 printf("   Uncompressing %s ... ", type_name);
 404
 405                 ret = lzop_decompress((const unsigned char *)image_start,
 406                                           image_len, (unsigned char *)load,
 407                                           &unc_len);
 408                 if (ret != LZO_E_OK) {
 409                         printf("LZO: uncompress or overwrite error %d "
 410                               "- must RESET board to recover\n", ret);
 411                         if (boot_progress)
 412                                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 413                         return BOOTM_ERR_RESET;
 414                 }
 415
 416                 *load_end = load + unc_len;
 417                 break;
 418 #endif /* CONFIG_LZO */
 419         default:
 420                 printf("Unimplemented compression type %d\n", comp);
 421                 return BOOTM_ERR_UNIMPLEMENTED;
 422         }
 423
 424         flush_cache(load, (*load_end - load) * sizeof(ulong));
 425
 426         puts("OK\n");
 427         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end);
 428         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 429
 430         if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) {
 431                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 432                         blob_start, blob_end);
 433                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 434                         *load_end);
 435
 436                 return BOOTM_ERR_OVERLAP;
 437         }
 438
 439         return 0;
 440 }
 441
 442 static int bootm_start_standalone(ulong iflag, int argc, char * const argv[])
 443 {
 444         char  *s;
 445         int   (*appl)(int, char * const []);
 446
 447         /* Don't start if "autostart" is set to "no" */
 448         if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
 449                 char buf[32];
 450                 sprintf(buf, "%lX", images.os.image_len);
 451                 setenv("filesize", buf);
 452                 return 0;
 453         }
 454         appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
 455         (*appl)(argc-1, &argv[1]);
 456         return 0;
 457 }
 458
 459 /* we overload the cmd field with our state machine info instead of a
 460  * function pointer */
 461 static cmd_tbl_t cmd_bootm_sub[] = {
 462         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
 463         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
 464 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 465         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
 466 #endif
 467 #ifdef CONFIG_OF_LIBFDT
 468         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
 469 #endif
 470         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
 471         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
 472         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
 473         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 474 };
 475
 476 int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 477                         char * const argv[])
 478 {
 479         int ret = 0;
 480         long state;
 481         cmd_tbl_t *c;
 482         boot_os_fn *boot_fn;
 483
 484         c = find_cmd_tbl(argv[1], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
 485
 486         if (c) {
 487                 state = (long)c->cmd;
 488
 489                 /* treat start special since it resets the state machine */
 490                 if (state == BOOTM_STATE_START) {
 491                         argc--;
 492                         argv++;
 493                         return bootm_start(cmdtp, flag, argc, argv);
 494                 }
 495         } else {
 496                 /* Unrecognized command */
 497                 return CMD_RET_USAGE;
 498         }
 499
 500         if (images.state >= state) {
 501                 printf("Trying to execute a command out of order\n");
 502                 return CMD_RET_USAGE;
 503         }
 504
 505         images.state |= state;
 506         boot_fn = boot_os[images.os.os];
 507
 508         switch (state) {
 509                 ulong load_end;
 510                 case BOOTM_STATE_START:
 511                         /* should never occur */
 512                         break;
 513                 case BOOTM_STATE_LOADOS:
 514                         ret = bootm_load_os(images.os, &load_end, 0);
 515                         if (ret)
 516                                 return ret;
 517
 518                         lmb_reserve(&images.lmb, images.os.load,
 519                                         (load_end - images.os.load));
 520                         break;
 521 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 522                 case BOOTM_STATE_RAMDISK:
 523                 {
 524                         ulong rd_len = images.rd_end - images.rd_start;
 525                         char str[17];
 526
 527                         ret = boot_ramdisk_high(&images.lmb, images.rd_start,
 528                                 rd_len, &images.initrd_start, &images.initrd_end);
 529                         if (ret)
 530                                 return ret;
 531
 532                         sprintf(str, "%lx", images.initrd_start);
 533                         setenv("initrd_start", str);
 534                         sprintf(str, "%lx", images.initrd_end);
 535                         setenv("initrd_end", str);
 536                 }
 537                         break;
 538 #endif
 539 #if defined(CONFIG_OF_LIBFDT)
 540                 case BOOTM_STATE_FDT:
 541                 {
 542                         boot_fdt_add_mem_rsv_regions(&images.lmb,
 543                                                      images.ft_addr);
 544                         ret = boot_relocate_fdt(&images.lmb,
 545                                 &images.ft_addr, &images.ft_len);
 546                         break;
 547                 }
 548 #endif
 549                 case BOOTM_STATE_OS_CMDLINE:
 550                         ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, &images);
 551                         if (ret)
 552                                 printf("cmdline subcommand not supported\n");
 553                         break;
 554                 case BOOTM_STATE_OS_BD_T:
 555                         ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, &images);
 556                         if (ret)
 557                                 printf("bdt subcommand not supported\n");
 558                         break;
 559                 case BOOTM_STATE_OS_PREP:
 560                         ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, &images);
 561                         if (ret)
 562                                 printf("prep subcommand not supported\n");
 563                         break;
 564                 case BOOTM_STATE_OS_GO:
 565                         disable_interrupts();
 566                         arch_preboot_os();
 567                         boot_fn(BOOTM_STATE_OS_GO, argc, argv, &images);
 568                         break;
 569         }
 570
 571         return ret;
 572 }
 573
 574 /*******************************************************************/
 575 /* bootm - boot application image from image in memory */
 576 /*******************************************************************/
 577
 578 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 579 {
 580         ulong           iflag;
 581         ulong           load_end = 0;
 582         int             ret;
 583         boot_os_fn      *boot_fn;
 584 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 585         static int relocated = 0;
 586
 587         /* relocate boot function table */
 588         if (!relocated) {
 589                 int i;
 590                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
 591                         if (boot_os[i] != NULL)
 592                                 boot_os[i] += gd->reloc_off;
 593                 relocated = 1;
 594         }
 595 #endif
 596
 597         /* determine if we have a sub command */
 598         if (argc > 1) {
 599                 char *endp;
 600
 601                 simple_strtoul(argv[1], &endp, 16);
 602                 /* endp pointing to NULL means that argv[1] was just a
 603                  * valid number, pass it along to the normal bootm processing
 604                  *
 605                  * If endp is ':' or '#' assume a FIT identifier so pass
 606                  * along for normal processing.
 607                  *
 608                  * Right now we assume the first arg should never be '-'
 609                  */
 610                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 611                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 612         }
 613
 614         if (bootm_start(cmdtp, flag, argc, argv))
 615                 return 1;
 616
 617         /*
 618          * We have reached the point of no return: we are going to
 619          * overwrite all exception vector code, so we cannot easily
 620          * recover from any failures any more...
 621          */
 622         iflag = disable_interrupts();
 623
 624 #if defined(CONFIG_CMD_USB)
 625         /*
 626          * turn off USB to prevent the host controller from writing to the
 627          * SDRAM while Linux is booting. This could happen (at least for OHCI
 628          * controller), because the HCCA (Host Controller Communication Area)
 629          * lies within the SDRAM and the host controller writes continously to
 630          * this area (as busmaster!). The HccaFrameNumber is for example
 631          * updated every 1 ms within the HCCA structure in SDRAM! For more
 632          * details see the OpenHCI specification.
 633          */
 634         usb_stop();
 635 #endif
 636
 637         ret = bootm_load_os(images.os, &load_end, 1);
 638
 639         if (ret < 0) {
 640                 if (ret == BOOTM_ERR_RESET)
 641                         do_reset(cmdtp, flag, argc, argv);
 642                 if (ret == BOOTM_ERR_OVERLAP) {
 643                         if (images.legacy_hdr_valid) {
 644                                 image_header_t *hdr;
 645                                 hdr = &images.legacy_hdr_os_copy;
 646                                 if (image_get_type(hdr) == IH_TYPE_MULTI)
 647                                         puts("WARNING: legacy format multi "
 648                                                 "component image "
 649                                                 "overwritten\n");
 650                         } else {
 651                                 puts("ERROR: new format image overwritten - "
 652                                         "must RESET the board to recover\n");
 653                                 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 654                                 do_reset(cmdtp, flag, argc, argv);
 655                         }
 656                 }
 657                 if (ret == BOOTM_ERR_UNIMPLEMENTED) {
 658                         if (iflag)
 659                                 enable_interrupts();
 660                         bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
 661                         return 1;
 662                 }
 663         }
 664
 665         lmb_reserve(&images.lmb, images.os.load, (load_end - images.os.load));
 666
 667         if (images.os.type == IH_TYPE_STANDALONE) {
 668                 if (iflag)
 669                         enable_interrupts();
 670                 /* This may return when 'autostart' is 'no' */
 671                 bootm_start_standalone(iflag, argc, argv);
 672                 return 0;
 673         }
 674
 675         bootstage_mark(BOOTSTAGE_ID_CHECK_BOOT_OS);
 676
 677 #ifdef CONFIG_SILENT_CONSOLE
 678         if (images.os.os == IH_OS_LINUX)
 679                 fixup_silent_linux();
 680 #endif
 681
 682         boot_fn = boot_os[images.os.os];
 683
 684         if (boot_fn == NULL) {
 685                 if (iflag)
 686                         enable_interrupts();
 687                 printf("ERROR: booting os '%s' (%d) is not supported\n",
 688                         genimg_get_os_name(images.os.os), images.os.os);
 689                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
 690                 return 1;
 691         }
 692
 693         arch_preboot_os();
 694
 695         boot_fn(0, argc, argv, &images);
 696
 697         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
 698 #ifdef DEBUG
 699         puts("\n## Control returned to monitor - resetting...\n");
 700 #endif
 701         do_reset(cmdtp, flag, argc, argv);
 702
 703         return 1;
 704 }
 705
 706 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
 707 {
 708         const char *ep = getenv("autostart");
 709
 710         if (ep && !strcmp(ep, "yes")) {
 711                 char *local_args[2];
 712                 local_args[0] = (char *)cmd;
 713                 local_args[1] = NULL;
 714                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
 715                 return do_bootm(cmdtp, 0, 1, local_args);
 716         }
 717
 718         return 0;
 719 }
 720
 721 /**
 722  * image_get_kernel - verify legacy format kernel image
 723  * @img_addr: in RAM address of the legacy format image to be verified
 724  * @verify: data CRC verification flag
 725  *
 726  * image_get_kernel() verifies legacy image integrity and returns pointer to
 727  * legacy image header if image verification was completed successfully.
 728  *
 729  * returns:
 730  *     pointer to a legacy image header if valid image was found
 731  *     otherwise return NULL
 732  */
 733 static image_header_t *image_get_kernel(ulong img_addr, int verify)
 734 {
 735         image_header_t *hdr = (image_header_t *)img_addr;
 736
 737         if (!image_check_magic(hdr)) {
 738                 puts("Bad Magic Number\n");
 739                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
 740                 return NULL;
 741         }
 742         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
 743
 744         if (!image_check_hcrc(hdr)) {
 745                 puts("Bad Header Checksum\n");
 746                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
 747                 return NULL;
 748         }
 749
 750         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
 751         image_print_contents(hdr);
 752
 753         if (verify) {
 754                 puts("   Verifying Checksum ... ");
 755                 if (!image_check_dcrc(hdr)) {
 756                         printf("Bad Data CRC\n");
 757                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
 758                         return NULL;
 759                 }
 760                 puts("OK\n");
 761         }
 762         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
 763
 764         if (!image_check_target_arch(hdr)) {
 765                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
 766                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
 767                 return NULL;
 768         }
 769         return hdr;
 770 }
 771
 772 /**
 773  * fit_check_kernel - verify FIT format kernel subimage
 774  * @fit_hdr: pointer to the FIT image header
 775  * os_noffset: kernel subimage node offset within FIT image
 776  * @verify: data CRC verification flag
 777  *
 778  * fit_check_kernel() verifies integrity of the kernel subimage and from
 779  * specified FIT image.
 780  *
 781  * returns:
 782  *     1, on success
 783  *     0, on failure
 784  */
 785 #if defined(CONFIG_FIT)
 786 static int fit_check_kernel(const void *fit, int os_noffset, int verify)
 787 {
 788         fit_image_print(fit, os_noffset, "   ");
 789
 790         if (verify) {
 791                 puts("   Verifying Hash Integrity ... ");
 792                 if (!fit_image_check_hashes(fit, os_noffset)) {
 793                         puts("Bad Data Hash\n");
 794                         bootstage_error(BOOTSTAGE_ID_FIT_CHECK_HASH);
 795                         return 0;
 796                 }
 797                 puts("OK\n");
 798         }
 799         bootstage_mark(BOOTSTAGE_ID_FIT_CHECK_ARCH);
 800
 801         if (!fit_image_check_target_arch(fit, os_noffset)) {
 802                 puts("Unsupported Architecture\n");
 803                 bootstage_error(BOOTSTAGE_ID_FIT_CHECK_ARCH);
 804                 return 0;
 805         }
 806
 807         bootstage_mark(BOOTSTAGE_ID_FIT_CHECK_KERNEL);
 808         if (!fit_image_check_type(fit, os_noffset, IH_TYPE_KERNEL) &&
 809             !fit_image_check_type(fit, os_noffset, IH_TYPE_KERNEL_NOLOAD)) {
 810                 puts("Not a kernel image\n");
 811                 bootstage_error(BOOTSTAGE_ID_FIT_CHECK_KERNEL);
 812                 return 0;
 813         }
 814
 815         bootstage_mark(BOOTSTAGE_ID_FIT_CHECKED);
 816         return 1;
 817 }
 818 #endif /* CONFIG_FIT */
 819
 820 /**
 821  * boot_get_kernel - find kernel image
 822  * @os_data: pointer to a ulong variable, will hold os data start address
 823  * @os_len: pointer to a ulong variable, will hold os data length
 824  *
 825  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 826  * and locates kernel data.
 827  *
 828  * returns:
 829  *     pointer to image header if valid image was found, plus kernel start
 830  *     address and length, otherwise NULL
 831  */
 832 static void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 833                 char * const argv[], bootm_headers_t *images, ulong *os_data,
 834                 ulong *os_len)
 835 {
 836         image_header_t  *hdr;
 837         ulong           img_addr;
 838 #if defined(CONFIG_FIT)
 839         void            *fit_hdr;
 840         const char      *fit_uname_config = NULL;
 841         const char      *fit_uname_kernel = NULL;
 842         const void      *data;
 843         size_t          len;
 844         int             cfg_noffset;
 845         int             os_noffset;
 846 #endif
 847
 848         /* find out kernel image address */
 849         if (argc < 2) {
 850                 img_addr = load_addr;
 851                 debug("*  kernel: default image load address = 0x%08lx\n",
 852                                 load_addr);
 853 #if defined(CONFIG_FIT)
 854         } else if (fit_parse_conf(argv[1], load_addr, &img_addr,
 855                                                         &fit_uname_config)) {
 856                 debug("*  kernel: config '%s' from image at 0x%08lx\n",
 857                                 fit_uname_config, img_addr);
 858         } else if (fit_parse_subimage(argv[1], load_addr, &img_addr,
 859                                                         &fit_uname_kernel)) {
 860                 debug("*  kernel: subimage '%s' from image at 0x%08lx\n",
 861                                 fit_uname_kernel, img_addr);
 862 #endif
 863         } else {
 864                 img_addr = simple_strtoul(argv[1], NULL, 16);
 865                 debug("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 866         }
 867
 868         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 869
 870         /* copy from dataflash if needed */
 871         img_addr = genimg_get_image(img_addr);
 872
 873         /* check image type, for FIT images get FIT kernel node */
 874         *os_data = *os_len = 0;
 875         switch (genimg_get_format((void *)img_addr)) {
 876         case IMAGE_FORMAT_LEGACY:
 877                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 878                                 img_addr);
 879                 hdr = image_get_kernel(img_addr, images->verify);
 880                 if (!hdr)
 881                         return NULL;
 882                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 883
 884                 /* get os_data and os_len */
 885                 switch (image_get_type(hdr)) {
 886                 case IH_TYPE_KERNEL:
 887                 case IH_TYPE_KERNEL_NOLOAD:
 888                         *os_data = image_get_data(hdr);
 889                         *os_len = image_get_data_size(hdr);
 890                         break;
 891                 case IH_TYPE_MULTI:
 892                         image_multi_getimg(hdr, 0, os_data, os_len);
 893                         break;
 894                 case IH_TYPE_STANDALONE:
 895                         *os_data = image_get_data(hdr);
 896                         *os_len = image_get_data_size(hdr);
 897                         break;
 898                 default:
 899                         printf("Wrong Image Type for %s command\n",
 900                                 cmdtp->name);
 901                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 902                         return NULL;
 903                 }
 904
 905                 /*
 906                  * copy image header to allow for image overwrites during
 907                  * kernel decompression.
 908                  */
 909                 memmove(&images->legacy_hdr_os_copy, hdr,
 910                         sizeof(image_header_t));
 911
 912                 /* save pointer to image header */
 913                 images->legacy_hdr_os = hdr;
 914
 915                 images->legacy_hdr_valid = 1;
 916                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 917                 break;
 918 #if defined(CONFIG_FIT)
 919         case IMAGE_FORMAT_FIT:
 920                 fit_hdr = (void *)img_addr;
 921                 printf("## Booting kernel from FIT Image at %08lx ...\n",
 922                                 img_addr);
 923
 924                 if (!fit_check_format(fit_hdr)) {
 925                         puts("Bad FIT kernel image format!\n");
 926                         bootstage_error(BOOTSTAGE_ID_FIT_FORMAT);
 927                         return NULL;
 928                 }
 929                 bootstage_mark(BOOTSTAGE_ID_FIT_FORMAT);
 930
 931                 if (!fit_uname_kernel) {
 932                         /*
 933                          * no kernel image node unit name, try to get config
 934                          * node first. If config unit node name is NULL
 935                          * fit_conf_get_node() will try to find default config
 936                          * node
 937                          */
 938                         bootstage_mark(BOOTSTAGE_ID_FIT_NO_UNIT_NAME);
 939                         cfg_noffset = fit_conf_get_node(fit_hdr,
 940                                                         fit_uname_config);
 941                         if (cfg_noffset < 0) {
 942                                 bootstage_error(BOOTSTAGE_ID_FIT_NO_UNIT_NAME);
 943                                 return NULL;
 944                         }
 945                         /* save configuration uname provided in the first
 946                          * bootm argument
 947                          */
 948                         images->fit_uname_cfg = fdt_get_name(fit_hdr,
 949                                                                 cfg_noffset,
 950                                                                 NULL);
 951                         printf("   Using '%s' configuration\n",
 952                                 images->fit_uname_cfg);
 953                         bootstage_mark(BOOTSTAGE_ID_FIT_CONFIG);
 954
 955                         os_noffset = fit_conf_get_kernel_node(fit_hdr,
 956                                                                 cfg_noffset);
 957                         fit_uname_kernel = fit_get_name(fit_hdr, os_noffset,
 958                                                         NULL);
 959                 } else {
 960                         /* get kernel component image node offset */
 961                         bootstage_mark(BOOTSTAGE_ID_FIT_UNIT_NAME);
 962                         os_noffset = fit_image_get_node(fit_hdr,
 963                                                         fit_uname_kernel);
 964                 }
 965                 if (os_noffset < 0) {
 966                         bootstage_error(BOOTSTAGE_ID_FIT_CONFIG);
 967                         return NULL;
 968                 }
 969
 970                 printf("   Trying '%s' kernel subimage\n", fit_uname_kernel);
 971
 972                 bootstage_mark(BOOTSTAGE_ID_FIT_CHECK_SUBIMAGE);
 973                 if (!fit_check_kernel(fit_hdr, os_noffset, images->verify))
 974                         return NULL;
 975
 976                 /* get kernel image data address and length */
 977                 if (fit_image_get_data(fit_hdr, os_noffset, &data, &len)) {
 978                         puts("Could not find kernel subimage data!\n");
 979                         bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO_ERR);
 980                         return NULL;
 981                 }
 982                 bootstage_mark(BOOTSTAGE_ID_FIT_KERNEL_INFO);
 983
 984                 *os_len = len;
 985                 *os_data = (ulong)data;
 986                 images->fit_hdr_os = fit_hdr;
 987                 images->fit_uname_os = fit_uname_kernel;
 988                 images->fit_noffset_os = os_noffset;
 989                 break;
 990 #endif
 991         default:
 992                 printf("Wrong Image Format for %s command\n", cmdtp->name);
 993                 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
 994                 return NULL;
 995         }
 996
 997         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
 998                         *os_data, *os_len, *os_len);
 999
1000         return (void *)img_addr;
1001 }
1002
1003 U_BOOT_CMD(
1004         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
1005         "boot application image from memory",
1006         "[addr [arg ...]]\n    - boot application image stored in memory\n"
1007         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
1008         "\t'arg' can be the address of an initrd image\n"
1009 #if defined(CONFIG_OF_LIBFDT)
1010         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1011         "\ta third argument is required which is the address of the\n"
1012         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1013         "\tuse a '-' for the second argument. If you do not pass a third\n"
1014         "\ta bd_info struct will be passed instead\n"
1015 #endif
1016 #if defined(CONFIG_FIT)
1017         "\t\nFor the new multi component uImage format (FIT) addresses\n"
1018         "\tmust be extened to include component or configuration unit name:\n"
1019         "\taddr:<subimg_uname> - direct component image specification\n"
1020         "\taddr#<conf_uname>   - configuration specification\n"
1021         "\tUse iminfo command to get the list of existing component\n"
1022         "\timages and configurations.\n"
1023 #endif
1024         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
1025         "must be\n"
1026         "issued in the order below (it's ok to not issue all sub-commands):\n"
1027         "\tstart [addr [arg ...]]\n"
1028         "\tloados  - load OS image\n"
1029 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_SPARC)
1030         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
1031 #endif
1032 #if defined(CONFIG_OF_LIBFDT)
1033         "\tfdt     - relocate flat device tree\n"
1034 #endif
1035         "\tcmdline - OS specific command line processing/setup\n"
1036         "\tbdt     - OS specific bd_t processing\n"
1037         "\tprep    - OS specific prep before relocation or go\n"
1038         "\tgo      - start OS"
1039 );
1040
1041 /*******************************************************************/
1042 /* bootd - boot default image */
1043 /*******************************************************************/
1044 #if defined(CONFIG_CMD_BOOTD)
1045 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1046 {
1047         int rcode = 0;
1048
1049         if (run_command(getenv("bootcmd"), flag) < 0)
1050                 rcode = 1;
1051         return rcode;
1052 }
1053
1054 U_BOOT_CMD(
1055         boot,   1,      1,      do_bootd,
1056         "boot default, i.e., run 'bootcmd'",
1057         ""
1058 );
1059
1060 /* keep old command name "bootd" for backward compatibility */
1061 U_BOOT_CMD(
1062         bootd, 1,       1,      do_bootd,
1063         "boot default, i.e., run 'bootcmd'",
1064         ""
1065 );
1066
1067 #endif
1068
1069
1070 /*******************************************************************/
1071 /* iminfo - print header info for a requested image */
1072 /*******************************************************************/
1073 #if defined(CONFIG_CMD_IMI)
1074 int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1075 {
1076         int     arg;
1077         ulong   addr;
1078         int     rcode = 0;
1079
1080         if (argc < 2) {
1081                 return image_info(load_addr);
1082         }
1083
1084         for (arg = 1; arg < argc; ++arg) {
1085                 addr = simple_strtoul(argv[arg], NULL, 16);
1086                 if (image_info(addr) != 0)
1087                         rcode = 1;
1088         }
1089         return rcode;
1090 }
1091
1092 static int image_info(ulong addr)
1093 {
1094         void *hdr = (void *)addr;
1095
1096         printf("\n## Checking Image at %08lx ...\n", addr);
1097
1098         switch (genimg_get_format(hdr)) {
1099         case IMAGE_FORMAT_LEGACY:
1100                 puts("   Legacy image found\n");
1101                 if (!image_check_magic(hdr)) {
1102                         puts("   Bad Magic Number\n");
1103                         return 1;
1104                 }
1105
1106                 if (!image_check_hcrc(hdr)) {
1107                         puts("   Bad Header Checksum\n");
1108                         return 1;
1109                 }
1110
1111                 image_print_contents(hdr);
1112
1113                 puts("   Verifying Checksum ... ");
1114                 if (!image_check_dcrc(hdr)) {
1115                         puts("   Bad Data CRC\n");
1116                         return 1;
1117                 }
1118                 puts("OK\n");
1119                 return 0;
1120 #if defined(CONFIG_FIT)
1121         case IMAGE_FORMAT_FIT:
1122                 puts("   FIT image found\n");
1123
1124                 if (!fit_check_format(hdr)) {
1125                         puts("Bad FIT image format!\n");
1126                         return 1;
1127                 }
1128
1129                 fit_print_contents(hdr);
1130
1131                 if (!fit_all_image_check_hashes(hdr)) {
1132                         puts("Bad hash in FIT image!\n");
1133                         return 1;
1134                 }
1135
1136                 return 0;
1137 #endif
1138         default:
1139                 puts("Unknown image format!\n");
1140                 break;
1141         }
1142
1143         return 1;
1144 }
1145
1146 U_BOOT_CMD(
1147         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
1148         "print header information for application image",
1149         "addr [addr ...]\n"
1150         "    - print header information for application image starting at\n"
1151         "      address 'addr' in memory; this includes verification of the\n"
1152         "      image contents (magic number, header and payload checksums)"
1153 );
1154 #endif
1155
1156
1157 /*******************************************************************/
1158 /* imls - list all images found in flash */
1159 /*******************************************************************/
1160 #if defined(CONFIG_CMD_IMLS)
1161 int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1162 {
1163         flash_info_t *info;
1164         int i, j;
1165         void *hdr;
1166
1167         for (i = 0, info = &flash_info[0];
1168                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
1169
1170                 if (info->flash_id == FLASH_UNKNOWN)
1171                         goto next_bank;
1172                 for (j = 0; j < info->sector_count; ++j) {
1173
1174                         hdr = (void *)info->start[j];
1175                         if (!hdr)
1176                                 goto next_sector;
1177
1178                         switch (genimg_get_format(hdr)) {
1179                         case IMAGE_FORMAT_LEGACY:
1180                                 if (!image_check_hcrc(hdr))
1181                                         goto next_sector;
1182
1183                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
1184                                 image_print_contents(hdr);
1185
1186                                 puts("   Verifying Checksum ... ");
1187                                 if (!image_check_dcrc(hdr)) {
1188                                         puts("Bad Data CRC\n");
1189                                 } else {
1190                                         puts("OK\n");
1191                                 }
1192                                 break;
1193 #if defined(CONFIG_FIT)
1194                         case IMAGE_FORMAT_FIT:
1195                                 if (!fit_check_format(hdr))
1196                                         goto next_sector;
1197
1198                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
1199                                 fit_print_contents(hdr);
1200                                 break;
1201 #endif
1202                         default:
1203                                 goto next_sector;
1204                         }
1205
1206 next_sector:            ;
1207                 }
1208 next_bank:      ;
1209         }
1210
1211         return (0);
1212 }
1213
1214 U_BOOT_CMD(
1215         imls,   1,              1,      do_imls,
1216         "list all images found in flash",
1217         "\n"
1218         "    - Prints information about all images found at sector\n"
1219         "      boundaries in flash."
1220 );
1221 #endif
1222
1223 /*******************************************************************/
1224 /* helper routines */
1225 /*******************************************************************/
1226 #ifdef CONFIG_SILENT_CONSOLE
1227 static void fixup_silent_linux(void)
1228 {
1229         char buf[256], *start, *end;
1230         char *cmdline = getenv("bootargs");
1231
1232         /* Only fix cmdline when requested */
1233         if (!(gd->flags & GD_FLG_SILENT))
1234                 return;
1235
1236         debug("before silent fix-up: %s\n", cmdline);
1237         if (cmdline) {
1238                 start = strstr(cmdline, "console=");
1239                 if (start) {
1240                         end = strchr(start, ' ');
1241                         strncpy(buf, cmdline, (start - cmdline + 8));
1242                         if (end)
1243                                 strcpy(buf + (start - cmdline + 8), end);
1244                         else
1245                                 buf[start - cmdline + 8] = '\0';
1246                 } else {
1247                         strcpy(buf, cmdline);
1248                         strcat(buf, " console=");
1249                 }
1250         } else {
1251                 strcpy(buf, "console=");
1252         }
1253
1254         setenv("bootargs", buf);
1255         debug("after silent fix-up: %s\n", buf);
1256 }
1257 #endif /* CONFIG_SILENT_CONSOLE */
1258
1259
1260 /*******************************************************************/
1261 /* OS booting routines */
1262 /*******************************************************************/
1263
1264 #ifdef CONFIG_BOOTM_NETBSD
1265 static int do_bootm_netbsd(int flag, int argc, char * const argv[],
1266                             bootm_headers_t *images)
1267 {
1268         void (*loader)(bd_t *, image_header_t *, char *, char *);
1269         image_header_t *os_hdr, *hdr;
1270         ulong kernel_data, kernel_len;
1271         char *consdev;
1272         char *cmdline;
1273
1274         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1275                 return 1;
1276
1277 #if defined(CONFIG_FIT)
1278         if (!images->legacy_hdr_valid) {
1279                 fit_unsupported_reset("NetBSD");
1280                 return 1;
1281         }
1282 #endif
1283         hdr = images->legacy_hdr_os;
1284
1285         /*
1286          * Booting a (NetBSD) kernel image
1287          *
1288          * This process is pretty similar to a standalone application:
1289          * The (first part of an multi-) image must be a stage-2 loader,
1290          * which in turn is responsible for loading & invoking the actual
1291          * kernel.  The only differences are the parameters being passed:
1292          * besides the board info strucure, the loader expects a command
1293          * line, the name of the console device, and (optionally) the
1294          * address of the original image header.
1295          */
1296         os_hdr = NULL;
1297         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
1298                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
1299                 if (kernel_len)
1300                         os_hdr = hdr;
1301         }
1302
1303         consdev = "";
1304 #if   defined(CONFIG_8xx_CONS_SMC1)
1305         consdev = "smc1";
1306 #elif defined(CONFIG_8xx_CONS_SMC2)
1307         consdev = "smc2";
1308 #elif defined(CONFIG_8xx_CONS_SCC2)
1309         consdev = "scc2";
1310 #elif defined(CONFIG_8xx_CONS_SCC3)
1311         consdev = "scc3";
1312 #endif
1313
1314         if (argc > 2) {
1315                 ulong len;
1316                 int   i;
1317
1318                 for (i = 2, len = 0; i < argc; i += 1)
1319                         len += strlen(argv[i]) + 1;
1320                 cmdline = malloc(len);
1321
1322                 for (i = 2, len = 0; i < argc; i += 1) {
1323                         if (i > 2)
1324                                 cmdline[len++] = ' ';
1325                         strcpy(&cmdline[len], argv[i]);
1326                         len += strlen(argv[i]);
1327                 }
1328         } else if ((cmdline = getenv("bootargs")) == NULL) {
1329                 cmdline = "";
1330         }
1331
1332         loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
1333
1334         printf("## Transferring control to NetBSD stage-2 loader "
1335                 "(at address %08lx) ...\n",
1336                 (ulong)loader);
1337
1338         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1339
1340         /*
1341          * NetBSD Stage-2 Loader Parameters:
1342          *   r3: ptr to board info data
1343          *   r4: image address
1344          *   r5: console device
1345          *   r6: boot args string
1346          */
1347         (*loader)(gd->bd, os_hdr, consdev, cmdline);
1348
1349         return 1;
1350 }
1351 #endif /* CONFIG_BOOTM_NETBSD*/
1352
1353 #ifdef CONFIG_LYNXKDI
1354 static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
1355                              bootm_headers_t *images)
1356 {
1357         image_header_t *hdr = &images->legacy_hdr_os_copy;
1358
1359         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1360                 return 1;
1361
1362 #if defined(CONFIG_FIT)
1363         if (!images->legacy_hdr_valid) {
1364                 fit_unsupported_reset("Lynx");
1365                 return 1;
1366         }
1367 #endif
1368
1369         lynxkdi_boot((image_header_t *)hdr);
1370
1371         return 1;
1372 }
1373 #endif /* CONFIG_LYNXKDI */
1374
1375 #ifdef CONFIG_BOOTM_RTEMS
1376 static int do_bootm_rtems(int flag, int argc, char * const argv[],
1377                            bootm_headers_t *images)
1378 {
1379         void (*entry_point)(bd_t *);
1380
1381         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1382                 return 1;
1383
1384 #if defined(CONFIG_FIT)
1385         if (!images->legacy_hdr_valid) {
1386                 fit_unsupported_reset("RTEMS");
1387                 return 1;
1388         }
1389 #endif
1390
1391         entry_point = (void (*)(bd_t *))images->ep;
1392
1393         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
1394                 (ulong)entry_point);
1395
1396         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1397
1398         /*
1399          * RTEMS Parameters:
1400          *   r3: ptr to board info data
1401          */
1402         (*entry_point)(gd->bd);
1403
1404         return 1;
1405 }
1406 #endif /* CONFIG_BOOTM_RTEMS */
1407
1408 #if defined(CONFIG_BOOTM_OSE)
1409 static int do_bootm_ose(int flag, int argc, char * const argv[],
1410                            bootm_headers_t *images)
1411 {
1412         void (*entry_point)(void);
1413
1414         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1415                 return 1;
1416
1417 #if defined(CONFIG_FIT)
1418         if (!images->legacy_hdr_valid) {
1419                 fit_unsupported_reset("OSE");
1420                 return 1;
1421         }
1422 #endif
1423
1424         entry_point = (void (*)(void))images->ep;
1425
1426         printf("## Transferring control to OSE (at address %08lx) ...\n",
1427                 (ulong)entry_point);
1428
1429         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1430
1431         /*
1432          * OSE Parameters:
1433          *   None
1434          */
1435         (*entry_point)();
1436
1437         return 1;
1438 }
1439 #endif /* CONFIG_BOOTM_OSE */
1440
1441 #if defined(CONFIG_CMD_ELF)
1442 static int do_bootm_vxworks(int flag, int argc, char * const argv[],
1443                              bootm_headers_t *images)
1444 {
1445         char str[80];
1446
1447         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1448                 return 1;
1449
1450 #if defined(CONFIG_FIT)
1451         if (!images->legacy_hdr_valid) {
1452                 fit_unsupported_reset("VxWorks");
1453                 return 1;
1454         }
1455 #endif
1456
1457         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1458         setenv("loadaddr", str);
1459         do_bootvx(NULL, 0, 0, NULL);
1460
1461         return 1;
1462 }
1463
1464 static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
1465                             bootm_headers_t *images)
1466 {
1467         char *local_args[2];
1468         char str[16];
1469
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("QNX");
1476                 return 1;
1477         }
1478 #endif
1479
1480         sprintf(str, "%lx", images->ep); /* write entry-point into string */
1481         local_args[0] = argv[0];
1482         local_args[1] = str;    /* and provide it via the arguments */
1483         do_bootelf(NULL, 0, 2, local_args);
1484
1485         return 1;
1486 }
1487 #endif
1488
1489 #ifdef CONFIG_INTEGRITY
1490 static int do_bootm_integrity(int flag, int argc, char * const argv[],
1491                            bootm_headers_t *images)
1492 {
1493         void (*entry_point)(void);
1494
1495         if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
1496                 return 1;
1497
1498 #if defined(CONFIG_FIT)
1499         if (!images->legacy_hdr_valid) {
1500                 fit_unsupported_reset("INTEGRITY");
1501                 return 1;
1502         }
1503 #endif
1504
1505         entry_point = (void (*)(void))images->ep;
1506
1507         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
1508                 (ulong)entry_point);
1509
1510         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
1511
1512         /*
1513          * INTEGRITY Parameters:
1514          *   None
1515          */
1516         (*entry_point)();
1517
1518         return 1;
1519 }
1520 #endif
1521
1522 #ifdef CONFIG_CMD_BOOTZ
1523
1524 static int __bootz_setup(void *image, void **start, void **end)
1525 {
1526         /* Please define bootz_setup() for your platform */
1527
1528         puts("Your platform's zImage format isn't supported yet!\n");
1529         return -1;
1530 }
1531 int bootz_setup(void *image, void **start, void **end)
1532         __attribute__((weak, alias("__bootz_setup")));
1533
1534 /*
1535  * zImage booting support
1536  */
1537 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
1538                         char * const argv[], bootm_headers_t *images)
1539 {
1540         int ret;
1541         void *zi_start, *zi_end;
1542
1543         memset(images, 0, sizeof(bootm_headers_t));
1544
1545         boot_start_lmb(images);
1546
1547         /* Setup Linux kernel zImage entry point */
1548         if (argc < 2) {
1549                 images->ep = load_addr;
1550                 debug("*  kernel: default image load address = 0x%08lx\n",
1551                                 load_addr);
1552         } else {
1553                 images->ep = simple_strtoul(argv[1], NULL, 16);
1554                 debug("*  kernel: cmdline image address = 0x%08lx\n",
1555                         images->ep);
1556         }
1557
1558         ret = bootz_setup((void *)images->ep, &zi_start, &zi_end);
1559         if (ret != 0)
1560                 return 1;
1561
1562         lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
1563
1564         /* Find ramdisk */
1565         ret = boot_get_ramdisk(argc, argv, images, IH_INITRD_ARCH,
1566                         &images->rd_start, &images->rd_end);
1567         if (ret) {
1568                 puts("Ramdisk image is corrupt or invalid\n");
1569                 return 1;
1570         }
1571
1572 #if defined(CONFIG_OF_LIBFDT)
1573         /* find flattened device tree */
1574         ret = boot_get_fdt(flag, argc, argv, images,
1575                            &images->ft_addr, &images->ft_len);
1576         if (ret) {
1577                 puts("Could not find a valid device tree\n");
1578                 return 1;
1579         }
1580
1581         set_working_fdt_addr(images->ft_addr);
1582 #endif
1583
1584         return 0;
1585 }
1586
1587 static int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
1588 {
1589         ulong           iflag;
1590         bootm_headers_t images;
1591
1592         if (bootz_start(cmdtp, flag, argc, argv, &images))
1593                 return 1;
1594
1595         /*
1596          * We have reached the point of no return: we are going to
1597          * overwrite all exception vector code, so we cannot easily
1598          * recover from any failures any more...
1599          */
1600         iflag = disable_interrupts();
1601
1602 #if defined(CONFIG_CMD_USB)
1603         /*
1604          * turn off USB to prevent the host controller from writing to the
1605          * SDRAM while Linux is booting. This could happen (at least for OHCI
1606          * controller), because the HCCA (Host Controller Communication Area)
1607          * lies within the SDRAM and the host controller writes continously to
1608          * this area (as busmaster!). The HccaFrameNumber is for example
1609          * updated every 1 ms within the HCCA structure in SDRAM! For more
1610          * details see the OpenHCI specification.
1611          */
1612         usb_stop();
1613 #endif
1614
1615 #ifdef CONFIG_SILENT_CONSOLE
1616         fixup_silent_linux();
1617 #endif
1618         arch_preboot_os();
1619
1620         do_bootm_linux(0, argc, argv, &images);
1621 #ifdef DEBUG
1622         puts("\n## Control returned to monitor - resetting...\n");
1623 #endif
1624         do_reset(cmdtp, flag, argc, argv);
1625
1626         return 1;
1627 }
1628
1629 U_BOOT_CMD(
1630         bootz,  CONFIG_SYS_MAXARGS,     1,      do_bootz,
1631         "boot Linux zImage image from memory",
1632         "[addr [initrd[:size]] [fdt]]\n"
1633         "    - boot Linux zImage stored in memory\n"
1634         "\tThe argument 'initrd' is optional and specifies the address\n"
1635         "\tof the initrd in memory. The optional argument ':size' allows\n"
1636         "\tspecifying the size of RAW initrd.\n"
1637 #if defined(CONFIG_OF_LIBFDT)
1638         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
1639         "\ta third argument is required which is the address of the\n"
1640         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
1641         "\tuse a '-' for the second argument. If you do not pass a third\n"
1642         "\ta bd_info struct will be passed instead\n"
1643 #endif
1644 );
1645 #endif  /* CONFIG_CMD_BOOTZ */