common/cmd_bootm.c

   1 /*
   2  * (C) Copyright 2000-2006
   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 <zlib.h>
  34 #include <bzlib.h>
  35 #include <environment.h>
  36 #include <lmb.h>
  37 #include <asm/byteorder.h>
  38
  39 #if defined(CONFIG_OF_LIBFDT)
  40 #include <fdt.h>
  41 #include <libfdt.h>
  42 #include <fdt_support.h>
  43 #endif
  44 #if defined(CONFIG_OF_FLAT_TREE)
  45 #include <ft_build.h>
  46 #endif
  47
  48 void mmc_depower(void);
  49
  50 DECLARE_GLOBAL_DATA_PTR;
  51
  52 /*cmd_boot.c*/
  53 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
  54
  55 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
  56 #include <rtc.h>
  57 #endif
  58
  59 #ifdef CFG_HUSH_PARSER
  60 #include <hush.h>
  61 #endif
  62
  63 extern void udc_disable (void);
  64
  65 DECLARE_GLOBAL_DATA_PTR;
  66
  67 extern int gunzip (void *dst, int dstlen, unsigned char *src, unsigned long *lenp);
  68 #ifndef CFG_BOOTM_LEN
  69 #define CFG_BOOTM_LEN   0x800000        /* use 8MByte as default max gunzip size */
  70 #endif
  71
  72 #ifdef CONFIG_BZIP2
  73 extern void bz_internal_error(int);
  74 #endif
  75
  76 #if defined(CONFIG_CMD_IMI)
  77 static int image_info (unsigned long addr);
  78 #endif
  79
  80 #if defined(CONFIG_CMD_IMLS)
  81 #include <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 *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, char *argv[],
  96                 bootm_headers_t *images, ulong *os_data, ulong *os_len);
  97 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
  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 void boot_os_fn (cmd_tbl_t *cmdtp, int flag,
 108                         int argc, char *argv[],
 109                         bootm_headers_t *images); /* pointers to os/initrd/fdt */
 110
 111 extern boot_os_fn do_bootm_linux;
 112 static boot_os_fn do_bootm_netbsd;
 113 #if defined(CONFIG_LYNXKDI)
 114 static boot_os_fn do_bootm_lynxkdi;
 115 extern void lynxkdi_boot (image_header_t *);
 116 #endif
 117 static boot_os_fn do_bootm_rtems;
 118 #if defined(CONFIG_CMD_ELF)
 119 static boot_os_fn do_bootm_vxworks;
 120 static boot_os_fn do_bootm_qnxelf;
 121 int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 122 int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 123 #endif
 124 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
 125 extern uchar (*env_get_char)(int); /* Returns a character from the environment */
 126 static boot_os_fn do_bootm_artos;
 127 #endif
 128
 129 ulong load_addr = CFG_LOAD_ADDR;        /* Default Load Address */
 130 static bootm_headers_t images;          /* pointers to os/initrd/fdt images */
 131
 132 void __board_lmb_reserve(struct lmb *lmb)
 133 {
 134         /* please define platform specific board_lmb_reserve() */
 135 }
 136 void board_lmb_reserve(struct lmb *lmb) __attribute__((weak, alias("__board_lmb_reserve")));
 137
 138
 139 /*******************************************************************/
 140 /* bootm - boot application image from image in memory */
 141 /*******************************************************************/
 142 int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 143 {
 144         ulong           iflag;
 145         const char      *type_name;
 146         uint            unc_len = CFG_BOOTM_LEN;
 147         uint8_t         comp, type, os;
 148
 149         void            *os_hdr;
 150         ulong           os_data, os_len;
 151         ulong           image_start, image_end;
 152         ulong           load_start, load_end;
 153         ulong           mem_start, mem_size;
 154
 155         struct lmb lmb;
 156
 157         memset ((void *)&images, 0, sizeof (images));
 158         images.verify = getenv_verify();
 159         images.autostart = getenv_autostart();
 160         images.lmb = &lmb;
 161
 162         lmb_init(&lmb);
 163
 164         mem_start = getenv_bootm_low();
 165         mem_size = getenv_bootm_size();
 166
 167         lmb_add(&lmb, mem_start, mem_size);
 168
 169         board_lmb_reserve(&lmb);
 170
 171         /* get kernel image header, start address and length */
 172         os_hdr = boot_get_kernel (cmdtp, flag, argc, argv,
 173                         &images, &os_data, &os_len);
 174         if (os_len == 0) {
 175                 puts ("ERROR: can't get kernel image!\n");
 176                 return 1;
 177         }
 178
 179         /* get image parameters */
 180         switch (genimg_get_format (os_hdr)) {
 181         case IMAGE_FORMAT_LEGACY:
 182                 type = image_get_type (os_hdr);
 183                 comp = image_get_comp (os_hdr);
 184                 os = image_get_os (os_hdr);
 185
 186                 image_end = image_get_image_end (os_hdr);
 187                 load_start = image_get_load (os_hdr);
 188                 break;
 189 #if defined(CONFIG_FIT)
 190         case IMAGE_FORMAT_FIT:
 191                 if (fit_image_get_type (images.fit_hdr_os,
 192                                         images.fit_noffset_os, &type)) {
 193                         puts ("Can't get image type!\n");
 194                         show_boot_progress (-109);
 195                         return 1;
 196                 }
 197
 198                 if (fit_image_get_comp (images.fit_hdr_os,
 199                                         images.fit_noffset_os, &comp)) {
 200                         puts ("Can't get image compression!\n");
 201                         show_boot_progress (-110);
 202                         return 1;
 203                 }
 204
 205                 if (fit_image_get_os (images.fit_hdr_os,
 206                                         images.fit_noffset_os, &os)) {
 207                         puts ("Can't get image OS!\n");
 208                         show_boot_progress (-111);
 209                         return 1;
 210                 }
 211
 212                 image_end = fit_get_end (images.fit_hdr_os);
 213
 214                 if (fit_image_get_load (images.fit_hdr_os, images.fit_noffset_os,
 215                                         &load_start)) {
 216                         puts ("Can't get image load address!\n");
 217                         show_boot_progress (-112);
 218                         return 1;
 219                 }
 220                 break;
 221 #endif
 222         default:
 223                 puts ("ERROR: unknown image format type!\n");
 224                 return 1;
 225         }
 226
 227         image_start = (ulong)os_hdr;
 228         load_end = 0;
 229         type_name = genimg_get_type_name (type);
 230
 231 #ifdef CONFIG_DEPOWER_MMC_ON_BOOT
 232         mmc_depower();
 233 #endif
 234
 235 #if (defined(CONFIG_S3C2410) || defined(CONFIG_S3C2440) || \
 236      defined(CONFIG_S3C2442) || defined(CONFIG_S3C2443)) && defined(CONFIG_USB_DEVICE)
 237         udc_disable();
 238 #endif
 239
 240         /*
 241          * We have reached the point of no return: we are going to
 242          * overwrite all exception vector code, so we cannot easily
 243          * recover from any failures any more...
 244          */
 245         iflag = disable_interrupts();
 246
 247 #ifdef CONFIG_AMIGAONEG3SE
 248         /*
 249          * We've possible left the caches enabled during
 250          * bios emulation, so turn them off again
 251          */
 252         icache_disable();
 253         invalidate_l1_instruction_cache();
 254         flush_data_cache();
 255         dcache_disable();
 256 #endif
 257
 258         switch (comp) {
 259         case IH_COMP_NONE:
 260                 if (load_start == (ulong)os_hdr) {
 261                         printf ("   XIP %s ... ", type_name);
 262                 } else {
 263                         printf ("   Loading %s ... ", type_name);
 264
 265                         memmove_wd ((void *)load_start,
 266                                    (void *)os_data, os_len, CHUNKSZ);
 267
 268                         load_end = load_start + os_len;
 269                         puts("OK\n");
 270                 }
 271                 break;
 272         case IH_COMP_GZIP:
 273                 printf ("   Uncompressing %s ... ", type_name);
 274                 if (gunzip ((void *)load_start, unc_len,
 275                                         (uchar *)os_data, &os_len) != 0) {
 276                         puts ("GUNZIP: uncompress or overwrite error "
 277                                 "- must RESET board to recover\n");
 278                         show_boot_progress (-6);
 279                         do_reset (cmdtp, flag, argc, argv);
 280                 }
 281
 282                 load_end = load_start + os_len;
 283                 break;
 284 #ifdef CONFIG_BZIP2
 285         case IH_COMP_BZIP2:
 286                 printf ("   Uncompressing %s ... ", type_name);
 287                 /*
 288                  * If we've got less than 4 MB of malloc() space,
 289                  * use slower decompression algorithm which requires
 290                  * at most 2300 KB of memory.
 291                  */
 292                 int i = BZ2_bzBuffToBuffDecompress ((char*)load_start,
 293                                         &unc_len, (char *)os_data, os_len,
 294                                         CFG_MALLOC_LEN < (4096 * 1024), 0);
 295                 if (i != BZ_OK) {
 296                         printf ("BUNZIP2: uncompress or overwrite error %d "
 297                                 "- must RESET board to recover\n", i);
 298                         show_boot_progress (-6);
 299                         do_reset (cmdtp, flag, argc, argv);
 300                 }
 301
 302                 load_end = load_start + unc_len;
 303                 break;
 304 #endif /* CONFIG_BZIP2 */
 305         default:
 306                 if (iflag)
 307                         enable_interrupts();
 308                 printf ("Unimplemented compression type %d\n", comp);
 309                 show_boot_progress (-7);
 310                 return 1;
 311         }
 312         puts ("OK\n");
 313         debug ("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load_start, load_end);
 314         show_boot_progress (7);
 315
 316         if ((load_start < image_end) && (load_end > image_start)) {
 317                 debug ("image_start = 0x%lX, image_end = 0x%lx\n", image_start, image_end);
 318                 debug ("load_start = 0x%lx, load_end = 0x%lx\n", load_start, load_end);
 319
 320                 puts ("ERROR: image overwritten - must RESET the board to recover.\n");
 321                 show_boot_progress (-113);
 322                 do_reset (cmdtp, flag, argc, argv);
 323         }
 324
 325         show_boot_progress (8);
 326
 327         lmb_reserve(&lmb, load_start, (load_end - load_start));
 328
 329         switch (os) {
 330         default:                        /* handled by (original) Linux case */
 331         case IH_OS_LINUX:
 332 #ifdef CONFIG_SILENT_CONSOLE
 333             fixup_silent_linux();
 334 #endif
 335             do_bootm_linux (cmdtp, flag, argc, argv, &images);
 336             break;
 337
 338         case IH_OS_NETBSD:
 339             do_bootm_netbsd (cmdtp, flag, argc, argv, &images);
 340             break;
 341
 342 #ifdef CONFIG_LYNXKDI
 343         case IH_OS_LYNXOS:
 344             do_bootm_lynxkdi (cmdtp, flag, argc, argv, &images);
 345             break;
 346 #endif
 347
 348         case IH_OS_RTEMS:
 349             do_bootm_rtems (cmdtp, flag, argc, argv, &images);
 350             break;
 351
 352 #if defined(CONFIG_CMD_ELF)
 353         case IH_OS_VXWORKS:
 354             do_bootm_vxworks (cmdtp, flag, argc, argv, &images);
 355             break;
 356
 357         case IH_OS_QNX:
 358             do_bootm_qnxelf (cmdtp, flag, argc, argv, &images);
 359             break;
 360 #endif
 361
 362 #ifdef CONFIG_ARTOS
 363         case IH_OS_ARTOS:
 364             do_bootm_artos (cmdtp, flag, argc, argv, &images);
 365             break;
 366 #endif
 367         }
 368
 369         show_boot_progress (-9);
 370 #ifdef DEBUG
 371         puts ("\n## Control returned to monitor - resetting...\n");
 372         if (images.autostart)
 373                 do_reset (cmdtp, flag, argc, argv);
 374 #endif
 375         if (!images.autostart && iflag)
 376                 enable_interrupts();
 377
 378         return 1;
 379 }
 380
 381 /**
 382  * image_get_kernel - verify legacy format kernel image
 383  * @img_addr: in RAM address of the legacy format image to be verified
 384  * @verify: data CRC verification flag
 385  *
 386  * image_get_kernel() verifies legacy image integrity and returns pointer to
 387  * legacy image header if image verification was completed successfully.
 388  *
 389  * returns:
 390  *     pointer to a legacy image header if valid image was found
 391  *     otherwise return NULL
 392  */
 393 static image_header_t *image_get_kernel (ulong img_addr, int verify)
 394 {
 395         image_header_t *hdr = (image_header_t *)img_addr;
 396
 397         if (!image_check_magic(hdr)) {
 398                 puts ("Bad Magic Number\n");
 399                 show_boot_progress (-1);
 400                 return NULL;
 401         }
 402         show_boot_progress (2);
 403
 404         if (!image_check_hcrc (hdr)) {
 405                 puts ("Bad Header Checksum\n");
 406                 show_boot_progress (-2);
 407                 return NULL;
 408         }
 409
 410         show_boot_progress (3);
 411         image_print_contents (hdr);
 412
 413         if (verify) {
 414                 puts ("   Verifying Checksum ... ");
 415                 if (!image_check_dcrc (hdr)) {
 416                         printf ("Bad Data CRC\n");
 417                         show_boot_progress (-3);
 418                         return NULL;
 419                 }
 420                 puts ("OK\n");
 421         }
 422         show_boot_progress (4);
 423
 424         if (!image_check_target_arch (hdr)) {
 425                 printf ("Unsupported Architecture 0x%x\n", image_get_arch (hdr));
 426                 show_boot_progress (-4);
 427                 return NULL;
 428         }
 429         return hdr;
 430 }
 431
 432 /**
 433  * fit_check_kernel - verify FIT format kernel subimage
 434  * @fit_hdr: pointer to the FIT image header
 435  * os_noffset: kernel subimage node offset within FIT image
 436  * @verify: data CRC verification flag
 437  *
 438  * fit_check_kernel() verifies integrity of the kernel subimage and from
 439  * specified FIT image.
 440  *
 441  * returns:
 442  *     1, on success
 443  *     0, on failure
 444  */
 445 #if defined (CONFIG_FIT)
 446 static int fit_check_kernel (const void *fit, int os_noffset, int verify)
 447 {
 448         fit_image_print (fit, os_noffset, "   ");
 449
 450         if (verify) {
 451                 puts ("   Verifying Hash Integrity ... ");
 452                 if (!fit_image_check_hashes (fit, os_noffset)) {
 453                         puts ("Bad Data Hash\n");
 454                         show_boot_progress (-104);
 455                         return 0;
 456                 }
 457                 puts ("OK\n");
 458         }
 459         show_boot_progress (105);
 460
 461 #ifdef CONFIG_LOGBUFFER
 462 #ifndef CONFIG_ALT_LB_ADDR
 463         kbd=gd->bd;
 464         /* Prevent initrd from overwriting logbuffer */
 465         if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
 466                 initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
 467         debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
 468 #else
 469         debug ("## Logbuffer at 0x%08lX ", CONFIG_ALT_LB_ADDR);
 470 #endif
 471 #endif
 472         if (!fit_image_check_target_arch (fit, os_noffset)) {
 473                 puts ("Unsupported Architecture\n");
 474                 show_boot_progress (-105);
 475                 return 0;
 476         }
 477
 478         show_boot_progress (106);
 479         if (!fit_image_check_type (fit, os_noffset, IH_TYPE_KERNEL)) {
 480                 puts ("Not a kernel image\n");
 481                 show_boot_progress (-106);
 482                 return 0;
 483         }
 484
 485         show_boot_progress (107);
 486         return 1;
 487 }
 488 #endif /* CONFIG_FIT */
 489
 490 /**
 491  * boot_get_kernel - find kernel image
 492  * @os_data: pointer to a ulong variable, will hold os data start address
 493  * @os_len: pointer to a ulong variable, will hold os data length
 494  *
 495  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 496  * and locates kernel data.
 497  *
 498  * returns:
 499  *     pointer to image header if valid image was found, plus kernel start
 500  *     address and length, otherwise NULL
 501  */
 502 static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 503                 bootm_headers_t *images, ulong *os_data, ulong *os_len)
 504 {
 505         image_header_t  *hdr;
 506         ulong           img_addr;
 507 #if defined(CONFIG_FIT)
 508         void            *fit_hdr;
 509         const char      *fit_uname_config = NULL;
 510         const char      *fit_uname_kernel = NULL;
 511         const void      *data;
 512         size_t          len;
 513         int             cfg_noffset;
 514         int             os_noffset;
 515 #endif
 516
 517         /* find out kernel image address */
 518         if (argc < 2) {
 519                 img_addr = load_addr;
 520                 debug ("*  kernel: default image load address = 0x%08lx\n",
 521                                 load_addr);
 522 #if defined(CONFIG_FIT)
 523         } else if (fit_parse_conf (argv[1], load_addr, &img_addr,
 524                                                         &fit_uname_config)) {
 525                 debug ("*  kernel: config '%s' from image at 0x%08lx\n",
 526                                 fit_uname_config, img_addr);
 527         } else if (fit_parse_subimage (argv[1], load_addr, &img_addr,
 528                                                         &fit_uname_kernel)) {
 529                 debug ("*  kernel: subimage '%s' from image at 0x%08lx\n",
 530                                 fit_uname_kernel, img_addr);
 531 #endif
 532         } else {
 533                 img_addr = simple_strtoul(argv[1], NULL, 16);
 534                 debug ("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 535         }
 536
 537         show_boot_progress (1);
 538
 539         /* copy from dataflash if needed */
 540         img_addr = genimg_get_image (img_addr);
 541
 542         /* check image type, for FIT images get FIT kernel node */
 543         *os_data = *os_len = 0;
 544         switch (genimg_get_format ((void *)img_addr)) {
 545         case IMAGE_FORMAT_LEGACY:
 546                 printf ("## Booting kernel from Legacy Image at %08lx ...\n",
 547                                 img_addr);
 548                 hdr = image_get_kernel (img_addr, images->verify);
 549                 if (!hdr)
 550                         return NULL;
 551                 show_boot_progress (5);
 552
 553                 /* get os_data and os_len */
 554                 switch (image_get_type (hdr)) {
 555                 case IH_TYPE_KERNEL:
 556                         *os_data = image_get_data (hdr);
 557                         *os_len = image_get_data_size (hdr);
 558                         break;
 559                 case IH_TYPE_MULTI:
 560                         image_multi_getimg (hdr, 0, os_data, os_len);
 561                         break;
 562                 default:
 563                         printf ("Wrong Image Type for %s command\n", cmdtp->name);
 564                         show_boot_progress (-5);
 565                         return NULL;
 566                 }
 567                 images->legacy_hdr_os = hdr;
 568                 images->legacy_hdr_valid = 1;
 569
 570                 show_boot_progress (6);
 571                 break;
 572 #if defined(CONFIG_FIT)
 573         case IMAGE_FORMAT_FIT:
 574                 fit_hdr = (void *)img_addr;
 575                 printf ("## Booting kernel from FIT Image at %08lx ...\n",
 576                                 img_addr);
 577
 578                 if (!fit_check_format (fit_hdr)) {
 579                         puts ("Bad FIT kernel image format!\n");
 580                         show_boot_progress (-100);
 581                         return NULL;
 582                 }
 583                 show_boot_progress (100);
 584
 585                 if (!fit_uname_kernel) {
 586                         /*
 587                          * no kernel image node unit name, try to get config
 588                          * node first. If config unit node name is NULL
 589                          * fit_conf_get_node() will try to find default config node
 590                          */
 591                         show_boot_progress (101);
 592                         cfg_noffset = fit_conf_get_node (fit_hdr, fit_uname_config);
 593                         if (cfg_noffset < 0) {
 594                                 show_boot_progress (-101);
 595                                 return NULL;
 596                         }
 597                         /* save configuration uname provided in the first
 598                          * bootm argument
 599                          */
 600                         images->fit_uname_cfg = fdt_get_name (fit_hdr, cfg_noffset, NULL);
 601                         printf ("   Using '%s' configuration\n", images->fit_uname_cfg);
 602                         show_boot_progress (103);
 603
 604                         os_noffset = fit_conf_get_kernel_node (fit_hdr, cfg_noffset);
 605                         fit_uname_kernel = fit_get_name (fit_hdr, os_noffset, NULL);
 606                 } else {
 607                         /* get kernel component image node offset */
 608                         show_boot_progress (102);
 609                         os_noffset = fit_image_get_node (fit_hdr, fit_uname_kernel);
 610                 }
 611                 if (os_noffset < 0) {
 612                         show_boot_progress (-103);
 613                         return NULL;
 614                 }
 615
 616                 printf ("   Trying '%s' kernel subimage\n", fit_uname_kernel);
 617
 618                 show_boot_progress (104);
 619                 if (!fit_check_kernel (fit_hdr, os_noffset, images->verify))
 620                         return NULL;
 621
 622                 /* get kernel image data address and length */
 623                 if (fit_image_get_data (fit_hdr, os_noffset, &data, &len)) {
 624                         puts ("Could not find kernel subimage data!\n");
 625                         show_boot_progress (-107);
 626                         return NULL;
 627                 }
 628                 show_boot_progress (108);
 629
 630                 *os_len = len;
 631                 *os_data = (ulong)data;
 632                 images->fit_hdr_os = fit_hdr;
 633                 images->fit_uname_os = fit_uname_kernel;
 634                 images->fit_noffset_os = os_noffset;
 635                 break;
 636 #endif
 637         default:
 638                 printf ("Wrong Image Format for %s command\n", cmdtp->name);
 639                 show_boot_progress (-108);
 640                 return NULL;
 641         }
 642
 643         debug ("   kernel data at 0x%08lx, len = 0x%08lx (%d)\n",
 644                         *os_data, *os_len, *os_len);
 645
 646         return (void *)img_addr;
 647 }
 648
 649 U_BOOT_CMD(
 650         bootm,  CFG_MAXARGS,    1,      do_bootm,
 651         "bootm   - boot application image from memory\n",
 652         "[addr [arg ...]]\n    - boot application image stored in memory\n"
 653         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
 654         "\t'arg' can be the address of an initrd image\n"
 655 #if defined(CONFIG_OF_LIBFDT)
 656         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
 657         "\ta third argument is required which is the address of the\n"
 658         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
 659         "\tuse a '-' for the second argument. If you do not pass a third\n"
 660         "\ta bd_info struct will be passed instead\n"
 661 #endif
 662 #if defined(CONFIG_FIT)
 663         "\t\nFor the new multi component uImage format (FIT) addresses\n"
 664         "\tmust be extened to include component or configuration unit name:\n"
 665         "\taddr:<subimg_uname> - direct component image specification\n"
 666         "\taddr#<conf_uname>   - configuration specification\n"
 667         "\tUse iminfo command to get the list of existing component\n"
 668         "\timages and configurations.\n"
 669 #endif
 670 );
 671
 672 /*******************************************************************/
 673 /* bootd - boot default image */
 674 /*******************************************************************/
 675 #if defined(CONFIG_CMD_BOOTD)
 676 int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 677 {
 678         int rcode = 0;
 679
 680 #ifndef CFG_HUSH_PARSER
 681         if (run_command (getenv ("bootcmd"), flag) < 0)
 682                 rcode = 1;
 683 #else
 684         if (parse_string_outer (getenv ("bootcmd"),
 685                         FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0)
 686                 rcode = 1;
 687 #endif
 688         return rcode;
 689 }
 690
 691 U_BOOT_CMD(
 692         boot,   1,      1,      do_bootd,
 693         "boot    - boot default, i.e., run 'bootcmd'\n",
 694         NULL
 695 );
 696
 697 /* keep old command name "bootd" for backward compatibility */
 698 U_BOOT_CMD(
 699         bootd, 1,       1,      do_bootd,
 700         "bootd   - boot default, i.e., run 'bootcmd'\n",
 701         NULL
 702 );
 703
 704 #endif
 705
 706
 707 /*******************************************************************/
 708 /* iminfo - print header info for a requested image */
 709 /*******************************************************************/
 710 #if defined(CONFIG_CMD_IMI)
 711 int do_iminfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 712 {
 713         int     arg;
 714         ulong   addr;
 715         int     rcode = 0;
 716
 717         if (argc < 2) {
 718                 return image_info (load_addr);
 719         }
 720
 721         for (arg = 1; arg < argc; ++arg) {
 722                 addr = simple_strtoul (argv[arg], NULL, 16);
 723                 if (image_info (addr) != 0)
 724                         rcode = 1;
 725         }
 726         return rcode;
 727 }
 728
 729 static int image_info (ulong addr)
 730 {
 731         void *hdr = (void *)addr;
 732
 733         printf ("\n## Checking Image at %08lx ...\n", addr);
 734
 735         switch (genimg_get_format (hdr)) {
 736         case IMAGE_FORMAT_LEGACY:
 737                 puts ("   Legacy image found\n");
 738                 if (!image_check_magic (hdr)) {
 739                         puts ("   Bad Magic Number\n");
 740                         return 1;
 741                 }
 742
 743                 if (!image_check_hcrc (hdr)) {
 744                         puts ("   Bad Header Checksum\n");
 745                         return 1;
 746                 }
 747
 748                 image_print_contents (hdr);
 749
 750                 puts ("   Verifying Checksum ... ");
 751                 if (!image_check_dcrc (hdr)) {
 752                         puts ("   Bad Data CRC\n");
 753                         return 1;
 754                 }
 755                 puts ("OK\n");
 756                 return 0;
 757 #if defined(CONFIG_FIT)
 758         case IMAGE_FORMAT_FIT:
 759                 puts ("   FIT image found\n");
 760
 761                 if (!fit_check_format (hdr)) {
 762                         puts ("Bad FIT image format!\n");
 763                         return 1;
 764                 }
 765
 766                 fit_print_contents (hdr);
 767                 return 0;
 768 #endif
 769         default:
 770                 puts ("Unknown image format!\n");
 771                 break;
 772         }
 773
 774         return 1;
 775 }
 776
 777 U_BOOT_CMD(
 778         iminfo, CFG_MAXARGS,    1,      do_iminfo,
 779         "iminfo  - print header information for application image\n",
 780         "addr [addr ...]\n"
 781         "    - print header information for application image starting at\n"
 782         "      address 'addr' in memory; this includes verification of the\n"
 783         "      image contents (magic number, header and payload checksums)\n"
 784 );
 785 #endif
 786
 787
 788 /*******************************************************************/
 789 /* imls - list all images found in flash */
 790 /*******************************************************************/
 791 #if defined(CONFIG_CMD_IMLS)
 792 int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 793 {
 794         flash_info_t *info;
 795         int i, j;
 796         void *hdr;
 797
 798         for (i = 0, info = &flash_info[0];
 799                 i < CFG_MAX_FLASH_BANKS; ++i, ++info) {
 800
 801                 if (info->flash_id == FLASH_UNKNOWN)
 802                         goto next_bank;
 803                 for (j = 0; j < info->sector_count; ++j) {
 804
 805                         hdr = (void *)info->start[j];
 806                         if (!hdr)
 807                                 goto next_sector;
 808
 809                         switch (genimg_get_format (hdr)) {
 810                         case IMAGE_FORMAT_LEGACY:
 811                                 if (!image_check_hcrc (hdr))
 812                                         goto next_sector;
 813
 814                                 printf ("Legacy Image at %08lX:\n", (ulong)hdr);
 815                                 image_print_contents (hdr);
 816
 817                                 puts ("   Verifying Checksum ... ");
 818                                 if (!image_check_dcrc (hdr)) {
 819                                         puts ("Bad Data CRC\n");
 820                                 } else {
 821                                         puts ("OK\n");
 822                                 }
 823                                 break;
 824 #if defined(CONFIG_FIT)
 825                         case IMAGE_FORMAT_FIT:
 826                                 if (!fit_check_format (hdr))
 827                                         goto next_sector;
 828
 829                                 printf ("FIT Image at %08lX:\n", (ulong)hdr);
 830                                 fit_print_contents (hdr);
 831                                 break;
 832 #endif
 833                         default:
 834                                 goto next_sector;
 835                         }
 836
 837 next_sector:            ;
 838                 }
 839 next_bank:      ;
 840         }
 841
 842         return (0);
 843 }
 844
 845 U_BOOT_CMD(
 846         imls,   1,              1,      do_imls,
 847         "imls    - list all images found in flash\n",
 848         "\n"
 849         "    - Prints information about all images found at sector\n"
 850         "      boundaries in flash.\n"
 851 );
 852 #endif
 853
 854 /*******************************************************************/
 855 /* helper routines */
 856 /*******************************************************************/
 857 #ifdef CONFIG_SILENT_CONSOLE
 858 static void fixup_silent_linux ()
 859 {
 860         char buf[256], *start, *end;
 861         char *cmdline = getenv ("bootargs");
 862
 863         /* Only fix cmdline when requested */
 864         if (!(gd->flags & GD_FLG_SILENT))
 865                 return;
 866
 867         debug ("before silent fix-up: %s\n", cmdline);
 868         if (cmdline) {
 869                 if ((start = strstr (cmdline, "console=")) != NULL) {
 870                         end = strchr (start, ' ');
 871                         strncpy (buf, cmdline, (start - cmdline + 8));
 872                         if (end)
 873                                 strcpy (buf + (start - cmdline + 8), end);
 874                         else
 875                                 buf[start - cmdline + 8] = '\0';
 876                 } else {
 877                         strcpy (buf, cmdline);
 878                         strcat (buf, " console=");
 879                 }
 880         } else {
 881                 strcpy (buf, "console=");
 882         }
 883
 884         setenv ("bootargs", buf);
 885         debug ("after silent fix-up: %s\n", buf);
 886 }
 887 #endif /* CONFIG_SILENT_CONSOLE */
 888
 889
 890 /*******************************************************************/
 891 /* OS booting routines */
 892 /*******************************************************************/
 893
 894 static void do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
 895                             int argc, char *argv[],
 896                             bootm_headers_t *images)
 897 {
 898         void (*loader)(bd_t *, image_header_t *, char *, char *);
 899         image_header_t *os_hdr, *hdr;
 900         ulong kernel_data, kernel_len;
 901         char *consdev;
 902         char *cmdline;
 903
 904 #if defined(CONFIG_FIT)
 905         if (!images->legacy_hdr_valid) {
 906                 fit_unsupported_reset ("NetBSD");
 907                 do_reset (cmdtp, flag, argc, argv);
 908         }
 909 #endif
 910         hdr = images->legacy_hdr_os;
 911
 912         /*
 913          * Booting a (NetBSD) kernel image
 914          *
 915          * This process is pretty similar to a standalone application:
 916          * The (first part of an multi-) image must be a stage-2 loader,
 917          * which in turn is responsible for loading & invoking the actual
 918          * kernel.  The only differences are the parameters being passed:
 919          * besides the board info strucure, the loader expects a command
 920          * line, the name of the console device, and (optionally) the
 921          * address of the original image header.
 922          */
 923         os_hdr = NULL;
 924         if (image_check_type (hdr, IH_TYPE_MULTI)) {
 925                 image_multi_getimg (hdr, 1, &kernel_data, &kernel_len);
 926                 if (kernel_len)
 927                         os_hdr = hdr;
 928         }
 929
 930         consdev = "";
 931 #if   defined (CONFIG_8xx_CONS_SMC1)
 932         consdev = "smc1";
 933 #elif defined (CONFIG_8xx_CONS_SMC2)
 934         consdev = "smc2";
 935 #elif defined (CONFIG_8xx_CONS_SCC2)
 936         consdev = "scc2";
 937 #elif defined (CONFIG_8xx_CONS_SCC3)
 938         consdev = "scc3";
 939 #endif
 940
 941         if (argc > 2) {
 942                 ulong len;
 943                 int   i;
 944
 945                 for (i = 2, len = 0; i < argc; i += 1)
 946                         len += strlen (argv[i]) + 1;
 947                 cmdline = malloc (len);
 948
 949                 for (i = 2, len = 0; i < argc; i += 1) {
 950                         if (i > 2)
 951                                 cmdline[len++] = ' ';
 952                         strcpy (&cmdline[len], argv[i]);
 953                         len += strlen (argv[i]);
 954                 }
 955         } else if ((cmdline = getenv ("bootargs")) == NULL) {
 956                 cmdline = "";
 957         }
 958
 959         loader = (void (*)(bd_t *, image_header_t *, char *, char *))image_get_ep (hdr);
 960
 961         printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
 962                 (ulong)loader);
 963
 964         show_boot_progress (15);
 965
 966         /*
 967          * NetBSD Stage-2 Loader Parameters:
 968          *   r3: ptr to board info data
 969          *   r4: image address
 970          *   r5: console device
 971          *   r6: boot args string
 972          */
 973         (*loader) (gd->bd, os_hdr, consdev, cmdline);
 974 }
 975
 976 #ifdef CONFIG_LYNXKDI
 977 static void do_bootm_lynxkdi (cmd_tbl_t *cmdtp, int flag,
 978                              int argc, char *argv[],
 979                              bootm_headers_t *images)
 980 {
 981         image_header_t *hdr = images->legacy_hdr_os;
 982
 983 #if defined(CONFIG_FIT)
 984         if (!images->legacy_hdr_valid) {
 985                 fit_unsupported_reset ("Lynx");
 986                 do_reset (cmdtp, flag, argc, argv);
 987         }
 988 #endif
 989
 990         lynxkdi_boot ((image_header_t *)hdr);
 991 }
 992 #endif /* CONFIG_LYNXKDI */
 993
 994 static void do_bootm_rtems (cmd_tbl_t *cmdtp, int flag,
 995                            int argc, char *argv[],
 996                            bootm_headers_t *images)
 997 {
 998         image_header_t *hdr = images->legacy_hdr_os;
 999         void (*entry_point)(bd_t *);
1000
1001 #if defined(CONFIG_FIT)
1002         if (!images->legacy_hdr_valid) {
1003                 fit_unsupported_reset ("RTEMS");
1004                 do_reset (cmdtp, flag, argc, argv);
1005         }
1006 #endif
1007
1008         entry_point = (void (*)(bd_t *))image_get_ep (hdr);
1009
1010         printf ("## Transferring control to RTEMS (at address %08lx) ...\n",
1011                 (ulong)entry_point);
1012
1013         show_boot_progress (15);
1014
1015         /*
1016          * RTEMS Parameters:
1017          *   r3: ptr to board info data
1018          */
1019         (*entry_point)(gd->bd);
1020 }
1021
1022 #if defined(CONFIG_CMD_ELF)
1023 static void do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag,
1024                              int argc, char *argv[],
1025                              bootm_headers_t *images)
1026 {
1027         char str[80];
1028         image_header_t *hdr = images->legacy_hdr_os;
1029
1030 #if defined(CONFIG_FIT)
1031         if (hdr == NULL) {
1032                 fit_unsupported_reset ("VxWorks");
1033                 do_reset (cmdtp, flag, argc, argv);
1034         }
1035 #endif
1036
1037         sprintf(str, "%x", image_get_ep (hdr)); /* write entry-point into string */
1038         setenv("loadaddr", str);
1039         do_bootvx(cmdtp, 0, 0, NULL);
1040 }
1041
1042 static void do_bootm_qnxelf(cmd_tbl_t *cmdtp, int flag,
1043                             int argc, char *argv[],
1044                             bootm_headers_t *images)
1045 {
1046         char *local_args[2];
1047         char str[16];
1048         image_header_t *hdr = images->legacy_hdr_os;
1049
1050 #if defined(CONFIG_FIT)
1051         if (!images->legacy_hdr_valid) {
1052                 fit_unsupported_reset ("QNX");
1053                 do_reset (cmdtp, flag, argc, argv);
1054         }
1055 #endif
1056
1057         sprintf(str, "%x", image_get_ep (hdr)); /* write entry-point into string */
1058         local_args[0] = argv[0];
1059         local_args[1] = str;    /* and provide it via the arguments */
1060         do_bootelf(cmdtp, 0, 2, local_args);
1061 }
1062 #endif
1063
1064 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
1065 static void do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
1066                            int argc, char *argv[],
1067                            bootm_headers_t *images)
1068 {
1069         ulong top;
1070         char *s, *cmdline;
1071         char **fwenv, **ss;
1072         int i, j, nxt, len, envno, envsz;
1073         bd_t *kbd;
1074         void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top);
1075         image_header_t *hdr = images->legacy_hdr_os;
1076
1077 #if defined(CONFIG_FIT)
1078         if (!images->legacy_hdr_valid) {
1079                 fit_unsupported_reset ("ARTOS");
1080                 do_reset (cmdtp, flag, argc, argv);
1081         }
1082 #endif
1083
1084         /*
1085          * Booting an ARTOS kernel image + application
1086          */
1087
1088         /* this used to be the top of memory, but was wrong... */
1089 #ifdef CONFIG_PPC
1090         /* get stack pointer */
1091         asm volatile ("mr %0,1" : "=r"(top) );
1092 #endif
1093         debug ("## Current stack ends at 0x%08lX ", top);
1094
1095         top -= 2048;            /* just to be sure */
1096         if (top > CFG_BOOTMAPSZ)
1097                 top = CFG_BOOTMAPSZ;
1098         top &= ~0xF;
1099
1100         debug ("=> set upper limit to 0x%08lX\n", top);
1101
1102         /* first check the artos specific boot args, then the linux args*/
1103         if ((s = getenv( "abootargs")) == NULL && (s = getenv ("bootargs")) == NULL)
1104                 s = "";
1105
1106         /* get length of cmdline, and place it */
1107         len = strlen (s);
1108         top = (top - (len + 1)) & ~0xF;
1109         cmdline = (char *)top;
1110         debug ("## cmdline at 0x%08lX ", top);
1111         strcpy (cmdline, s);
1112
1113         /* copy bdinfo */
1114         top = (top - sizeof (bd_t)) & ~0xF;
1115         debug ("## bd at 0x%08lX ", top);
1116         kbd = (bd_t *)top;
1117         memcpy (kbd, gd->bd, sizeof (bd_t));
1118
1119         /* first find number of env entries, and their size */
1120         envno = 0;
1121         envsz = 0;
1122         for (i = 0; env_get_char (i) != '\0'; i = nxt + 1) {
1123                 for (nxt = i; env_get_char (nxt) != '\0'; ++nxt)
1124                         ;
1125                 envno++;
1126                 envsz += (nxt - i) + 1; /* plus trailing zero */
1127         }
1128         envno++;        /* plus the terminating zero */
1129         debug ("## %u envvars total size %u ", envno, envsz);
1130
1131         top = (top - sizeof (char **) * envno) & ~0xF;
1132         fwenv = (char **)top;
1133         debug ("## fwenv at 0x%08lX ", top);
1134
1135         top = (top - envsz) & ~0xF;
1136         s = (char *)top;
1137         ss = fwenv;
1138
1139         /* now copy them */
1140         for (i = 0; env_get_char (i) != '\0'; i = nxt + 1) {
1141                 for (nxt = i; env_get_char (nxt) != '\0'; ++nxt)
1142                         ;
1143                 *ss++ = s;
1144                 for (j = i; j < nxt; ++j)
1145                         *s++ = env_get_char (j);
1146                 *s++ = '\0';
1147         }
1148         *ss++ = NULL;   /* terminate */
1149
1150         entry = (void (*)(bd_t *, char *, char **, ulong))image_get_ep (hdr);
1151         (*entry) (kbd, cmdline, fwenv, top);
1152 }
1153 #endif