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 DECLARE_GLOBAL_DATA_PTR;
  64
  65 extern int gunzip (void *dst, int dstlen, unsigned char *src, unsigned long *lenp);
  66 #ifndef CFG_BOOTM_LEN
  67 #define CFG_BOOTM_LEN   0x800000        /* use 8MByte as default max gunzip size */
  68 #endif
  69
  70 #ifdef CONFIG_BZIP2
  71 extern void bz_internal_error(int);
  72 #endif
  73
  74 #if defined(CONFIG_CMD_IMI)
  75 static int image_info (unsigned long addr);
  76 #endif
  77
  78 #if defined(CONFIG_CMD_IMLS)
  79 #include <flash.h>
  80 extern flash_info_t flash_info[]; /* info for FLASH chips */
  81 static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
  82 #endif
  83
  84 #ifdef CONFIG_SILENT_CONSOLE
  85 static void fixup_silent_linux (void);
  86 #endif
  87
  88 static image_header_t *image_get_kernel (ulong img_addr, int verify);
  89 #if defined(CONFIG_FIT)
  90 static int fit_check_kernel (const void *fit, int os_noffset, int verify);
  91 #endif
  92
  93 static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag,int argc, char *argv[],
  94                 bootm_headers_t *images, ulong *os_data, ulong *os_len);
  95 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
  96
  97 /*
  98  *  Continue booting an OS image; caller already has:
  99  *  - copied image header to global variable `header'
 100  *  - checked header magic number, checksums (both header & image),
 101  *  - verified image architecture (PPC) and type (KERNEL or MULTI),
 102  *  - loaded (first part of) image to header load address,
 103  *  - disabled interrupts.
 104  */
 105 typedef void boot_os_fn (cmd_tbl_t *cmdtp, int flag,
 106                         int argc, char *argv[],
 107                         bootm_headers_t *images); /* pointers to os/initrd/fdt */
 108
 109 extern boot_os_fn do_bootm_linux;
 110 static boot_os_fn do_bootm_netbsd;
 111 #if defined(CONFIG_LYNXKDI)
 112 static boot_os_fn do_bootm_lynxkdi;
 113 extern void lynxkdi_boot (image_header_t *);
 114 #endif
 115 static boot_os_fn do_bootm_rtems;
 116 #if defined(CONFIG_CMD_ELF)
 117 static boot_os_fn do_bootm_vxworks;
 118 static boot_os_fn do_bootm_qnxelf;
 119 int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 120 int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 121 #endif
 122 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
 123 extern uchar (*env_get_char)(int); /* Returns a character from the environment */
 124 static boot_os_fn do_bootm_artos;
 125 #endif
 126
 127 ulong load_addr = CFG_LOAD_ADDR;        /* Default Load Address */
 128 static bootm_headers_t images;          /* pointers to os/initrd/fdt images */
 129
 130 void __board_lmb_reserve(struct lmb *lmb)
 131 {
 132         /* please define platform specific board_lmb_reserve() */
 133 }
 134 void board_lmb_reserve(struct lmb *lmb) __attribute__((weak, alias("__board_lmb_reserve")));
 135
 136
 137 /*******************************************************************/
 138 /* bootm - boot application image from image in memory */
 139 /*******************************************************************/
 140 int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 141 {
 142         ulong           iflag;
 143         const char      *type_name;
 144         uint            unc_len = CFG_BOOTM_LEN;
 145         uint8_t         comp, type, os;
 146
 147         void            *os_hdr;
 148         ulong           os_data, os_len;
 149         ulong           image_start, image_end;
 150         ulong           load_start, load_end;
 151         ulong           mem_start, mem_size;
 152
 153         struct lmb lmb;
 154
 155         memset ((void *)&images, 0, sizeof (images));
 156         images.verify = getenv_verify();
 157         images.autostart = getenv_autostart();
 158         images.lmb = &lmb;
 159
 160         lmb_init(&lmb);
 161
 162         mem_start = getenv_bootm_low();
 163         mem_size = getenv_bootm_size();
 164
 165         lmb_add(&lmb, mem_start, mem_size);
 166
 167         board_lmb_reserve(&lmb);
 168
 169         /* get kernel image header, start address and length */
 170         os_hdr = boot_get_kernel (cmdtp, flag, argc, argv,
 171                         &images, &os_data, &os_len);
 172         if (os_len == 0) {
 173                 puts ("ERROR: can't get kernel image!\n");
 174                 return 1;
 175         }
 176
 177         /* get image parameters */
 178         switch (genimg_get_format (os_hdr)) {
 179         case IMAGE_FORMAT_LEGACY:
 180                 type = image_get_type (os_hdr);
 181                 comp = image_get_comp (os_hdr);
 182                 os = image_get_os (os_hdr);
 183
 184                 image_end = image_get_image_end (os_hdr);
 185                 load_start = image_get_load (os_hdr);
 186                 break;
 187 #if defined(CONFIG_FIT)
 188         case IMAGE_FORMAT_FIT:
 189                 if (fit_image_get_type (images.fit_hdr_os,
 190                                         images.fit_noffset_os, &type)) {
 191                         puts ("Can't get image type!\n");
 192                         show_boot_progress (-109);
 193                         return 1;
 194                 }
 195
 196                 if (fit_image_get_comp (images.fit_hdr_os,
 197                                         images.fit_noffset_os, &comp)) {
 198                         puts ("Can't get image compression!\n");
 199                         show_boot_progress (-110);
 200                         return 1;
 201                 }
 202
 203                 if (fit_image_get_os (images.fit_hdr_os,
 204                                         images.fit_noffset_os, &os)) {
 205                         puts ("Can't get image OS!\n");
 206                         show_boot_progress (-111);
 207                         return 1;
 208                 }
 209
 210                 image_end = fit_get_end (images.fit_hdr_os);
 211
 212                 if (fit_image_get_load (images.fit_hdr_os, images.fit_noffset_os,
 213                                         &load_start)) {
 214                         puts ("Can't get image load address!\n");
 215                         show_boot_progress (-112);
 216                         return 1;
 217                 }
 218                 break;
 219 #endif
 220         default:
 221                 puts ("ERROR: unknown image format type!\n");
 222                 return 1;
 223         }
 224
 225         image_start = (ulong)os_hdr;
 226         load_end = 0;
 227         type_name = genimg_get_type_name (type);
 228
 229 #ifdef CONFIG_DEPOWER_MMC_ON_BOOT
 230         mmc_depower();
 231 #endif
 232
 233         /*
 234          * We have reached the point of no return: we are going to
 235          * overwrite all exception vector code, so we cannot easily
 236          * recover from any failures any more...
 237          */
 238         iflag = disable_interrupts();
 239
 240 #ifdef CONFIG_AMIGAONEG3SE
 241         /*
 242          * We've possible left the caches enabled during
 243          * bios emulation, so turn them off again
 244          */
 245         icache_disable();
 246         invalidate_l1_instruction_cache();
 247         flush_data_cache();
 248         dcache_disable();
 249 #endif
 250
 251         switch (comp) {
 252         case IH_COMP_NONE:
 253                 if (load_start == (ulong)os_hdr) {
 254                         printf ("   XIP %s ... ", type_name);
 255                 } else {
 256                         printf ("   Loading %s ... ", type_name);
 257
 258                         memmove_wd ((void *)load_start,
 259                                    (void *)os_data, os_len, CHUNKSZ);
 260
 261                         load_end = load_start + os_len;
 262                         puts("OK\n");
 263                 }
 264                 break;
 265         case IH_COMP_GZIP:
 266                 printf ("   Uncompressing %s ... ", type_name);
 267                 if (gunzip ((void *)load_start, unc_len,
 268                                         (uchar *)os_data, &os_len) != 0) {
 269                         puts ("GUNZIP: uncompress or overwrite error "
 270                                 "- must RESET board to recover\n");
 271                         show_boot_progress (-6);
 272                         do_reset (cmdtp, flag, argc, argv);
 273                 }
 274
 275                 load_end = load_start + os_len;
 276                 break;
 277 #ifdef CONFIG_BZIP2
 278         case IH_COMP_BZIP2:
 279                 printf ("   Uncompressing %s ... ", type_name);
 280                 /*
 281                  * If we've got less than 4 MB of malloc() space,
 282                  * use slower decompression algorithm which requires
 283                  * at most 2300 KB of memory.
 284                  */
 285                 int i = BZ2_bzBuffToBuffDecompress ((char*)load_start,
 286                                         &unc_len, (char *)os_data, os_len,
 287                                         CFG_MALLOC_LEN < (4096 * 1024), 0);
 288                 if (i != BZ_OK) {
 289                         printf ("BUNZIP2: uncompress or overwrite error %d "
 290                                 "- must RESET board to recover\n", i);
 291                         show_boot_progress (-6);
 292                         do_reset (cmdtp, flag, argc, argv);
 293                 }
 294
 295                 load_end = load_start + unc_len;
 296                 break;
 297 #endif /* CONFIG_BZIP2 */
 298         default:
 299                 if (iflag)
 300                         enable_interrupts();
 301                 printf ("Unimplemented compression type %d\n", comp);
 302                 show_boot_progress (-7);
 303                 return 1;
 304         }
 305         puts ("OK\n");
 306         debug ("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load_start, load_end);
 307         show_boot_progress (7);
 308
 309         if ((load_start < image_end) && (load_end > image_start)) {
 310                 debug ("image_start = 0x%lX, image_end = 0x%lx\n", image_start, image_end);
 311                 debug ("load_start = 0x%lx, load_end = 0x%lx\n", load_start, load_end);
 312
 313                 puts ("ERROR: image overwritten - must RESET the board to recover.\n");
 314                 show_boot_progress (-113);
 315                 do_reset (cmdtp, flag, argc, argv);
 316         }
 317
 318         show_boot_progress (8);
 319
 320         lmb_reserve(&lmb, load_start, (load_end - load_start));
 321
 322         switch (os) {
 323         default:                        /* handled by (original) Linux case */
 324         case IH_OS_LINUX:
 325 #ifdef CONFIG_SILENT_CONSOLE
 326             fixup_silent_linux();
 327 #endif
 328             do_bootm_linux (cmdtp, flag, argc, argv, &images);
 329             break;
 330
 331         case IH_OS_NETBSD:
 332             do_bootm_netbsd (cmdtp, flag, argc, argv, &images);
 333             break;
 334
 335 #ifdef CONFIG_LYNXKDI
 336         case IH_OS_LYNXOS:
 337             do_bootm_lynxkdi (cmdtp, flag, argc, argv, &images);
 338             break;
 339 #endif
 340
 341         case IH_OS_RTEMS:
 342             do_bootm_rtems (cmdtp, flag, argc, argv, &images);
 343             break;
 344
 345 #if defined(CONFIG_CMD_ELF)
 346         case IH_OS_VXWORKS:
 347             do_bootm_vxworks (cmdtp, flag, argc, argv, &images);
 348             break;
 349
 350         case IH_OS_QNX:
 351             do_bootm_qnxelf (cmdtp, flag, argc, argv, &images);
 352             break;
 353 #endif
 354
 355 #ifdef CONFIG_ARTOS
 356         case IH_OS_ARTOS:
 357             do_bootm_artos (cmdtp, flag, argc, argv, &images);
 358             break;
 359 #endif
 360         }
 361
 362         show_boot_progress (-9);
 363 #ifdef DEBUG
 364         puts ("\n## Control returned to monitor - resetting...\n");
 365         if (images.autostart)
 366                 do_reset (cmdtp, flag, argc, argv);
 367 #endif
 368         if (!images.autostart && iflag)
 369                 enable_interrupts();
 370
 371         return 1;
 372 }
 373
 374 /**
 375  * image_get_kernel - verify legacy format kernel image
 376  * @img_addr: in RAM address of the legacy format image to be verified
 377  * @verify: data CRC verification flag
 378  *
 379  * image_get_kernel() verifies legacy image integrity and returns pointer to
 380  * legacy image header if image verification was completed successfully.
 381  *
 382  * returns:
 383  *     pointer to a legacy image header if valid image was found
 384  *     otherwise return NULL
 385  */
 386 static image_header_t *image_get_kernel (ulong img_addr, int verify)
 387 {
 388         image_header_t *hdr = (image_header_t *)img_addr;
 389
 390         if (!image_check_magic(hdr)) {
 391                 puts ("Bad Magic Number\n");
 392                 show_boot_progress (-1);
 393                 return NULL;
 394         }
 395         show_boot_progress (2);
 396
 397         if (!image_check_hcrc (hdr)) {
 398                 puts ("Bad Header Checksum\n");
 399                 show_boot_progress (-2);
 400                 return NULL;
 401         }
 402
 403         show_boot_progress (3);
 404         image_print_contents (hdr);
 405
 406         if (verify) {
 407                 puts ("   Verifying Checksum ... ");
 408                 if (!image_check_dcrc (hdr)) {
 409                         printf ("Bad Data CRC\n");
 410                         show_boot_progress (-3);
 411                         return NULL;
 412                 }
 413                 puts ("OK\n");
 414         }
 415         show_boot_progress (4);
 416
 417         if (!image_check_target_arch (hdr)) {
 418                 printf ("Unsupported Architecture 0x%x\n", image_get_arch (hdr));
 419                 show_boot_progress (-4);
 420                 return NULL;
 421         }
 422         return hdr;
 423 }
 424
 425 /**
 426  * fit_check_kernel - verify FIT format kernel subimage
 427  * @fit_hdr: pointer to the FIT image header
 428  * os_noffset: kernel subimage node offset within FIT image
 429  * @verify: data CRC verification flag
 430  *
 431  * fit_check_kernel() verifies integrity of the kernel subimage and from
 432  * specified FIT image.
 433  *
 434  * returns:
 435  *     1, on success
 436  *     0, on failure
 437  */
 438 #if defined (CONFIG_FIT)
 439 static int fit_check_kernel (const void *fit, int os_noffset, int verify)
 440 {
 441         fit_image_print (fit, os_noffset, "   ");
 442
 443         if (verify) {
 444                 puts ("   Verifying Hash Integrity ... ");
 445                 if (!fit_image_check_hashes (fit, os_noffset)) {
 446                         puts ("Bad Data Hash\n");
 447                         show_boot_progress (-104);
 448                         return 0;
 449                 }
 450                 puts ("OK\n");
 451         }
 452         show_boot_progress (105);
 453
 454 #ifdef CONFIG_LOGBUFFER
 455 #ifndef CONFIG_ALT_LB_ADDR
 456         kbd=gd->bd;
 457         /* Prevent initrd from overwriting logbuffer */
 458         if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
 459                 initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
 460         debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
 461 #else
 462         debug ("## Logbuffer at 0x%08lX ", CONFIG_ALT_LB_ADDR);
 463 #endif
 464 #endif
 465         if (!fit_image_check_target_arch (fit, os_noffset)) {
 466                 puts ("Unsupported Architecture\n");
 467                 show_boot_progress (-105);
 468                 return 0;
 469         }
 470
 471         show_boot_progress (106);
 472         if (!fit_image_check_type (fit, os_noffset, IH_TYPE_KERNEL)) {
 473                 puts ("Not a kernel image\n");
 474                 show_boot_progress (-106);
 475                 return 0;
 476         }
 477
 478         show_boot_progress (107);
 479         return 1;
 480 }
 481 #endif /* CONFIG_FIT */
 482
 483 /**
 484  * boot_get_kernel - find kernel image
 485  * @os_data: pointer to a ulong variable, will hold os data start address
 486  * @os_len: pointer to a ulong variable, will hold os data length
 487  *
 488  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 489  * and locates kernel data.
 490  *
 491  * returns:
 492  *     pointer to image header if valid image was found, plus kernel start
 493  *     address and length, otherwise NULL
 494  */
 495 static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 496                 bootm_headers_t *images, ulong *os_data, ulong *os_len)
 497 {
 498         image_header_t  *hdr;
 499         ulong           img_addr;
 500 #if defined(CONFIG_FIT)
 501         void            *fit_hdr;
 502         const char      *fit_uname_config = NULL;
 503         const char      *fit_uname_kernel = NULL;
 504         const void      *data;
 505         size_t          len;
 506         int             cfg_noffset;
 507         int             os_noffset;
 508 #endif
 509
 510         /* find out kernel image address */
 511         if (argc < 2) {
 512                 img_addr = load_addr;
 513                 debug ("*  kernel: default image load address = 0x%08lx\n",
 514                                 load_addr);
 515 #if defined(CONFIG_FIT)
 516         } else if (fit_parse_conf (argv[1], load_addr, &img_addr,
 517                                                         &fit_uname_config)) {
 518                 debug ("*  kernel: config '%s' from image at 0x%08lx\n",
 519                                 fit_uname_config, img_addr);
 520         } else if (fit_parse_subimage (argv[1], load_addr, &img_addr,
 521                                                         &fit_uname_kernel)) {
 522                 debug ("*  kernel: subimage '%s' from image at 0x%08lx\n",
 523                                 fit_uname_kernel, img_addr);
 524 #endif
 525         } else {
 526                 img_addr = simple_strtoul(argv[1], NULL, 16);
 527                 debug ("*  kernel: cmdline image address = 0x%08lx\n", img_addr);
 528         }
 529
 530         show_boot_progress (1);
 531
 532         /* copy from dataflash if needed */
 533         img_addr = genimg_get_image (img_addr);
 534
 535         /* check image type, for FIT images get FIT kernel node */
 536         *os_data = *os_len = 0;
 537         switch (genimg_get_format ((void *)img_addr)) {
 538         case IMAGE_FORMAT_LEGACY:
 539                 printf ("## Booting kernel from Legacy Image at %08lx ...\n",
 540                                 img_addr);
 541                 hdr = image_get_kernel (img_addr, images->verify);
 542                 if (!hdr)
 543                         return NULL;
 544                 show_boot_progress (5);
 545
 546                 /* get os_data and os_len */
 547                 switch (image_get_type (hdr)) {
 548                 case IH_TYPE_KERNEL:
 549                         *os_data = image_get_data (hdr);
 550                         *os_len = image_get_data_size (hdr);
 551                         break;
 552                 case IH_TYPE_MULTI:
 553                         image_multi_getimg (hdr, 0, os_data, os_len);
 554                         break;
 555                 default:
 556                         printf ("Wrong Image Type for %s command\n", cmdtp->name);
 557                         show_boot_progress (-5);
 558                         return NULL;
 559                 }
 560                 images->legacy_hdr_os = hdr;
 561                 images->legacy_hdr_valid = 1;
 562
 563                 show_boot_progress (6);
 564                 break;
 565 #if defined(CONFIG_FIT)
 566         case IMAGE_FORMAT_FIT:
 567                 fit_hdr = (void *)img_addr;
 568                 printf ("## Booting kernel from FIT Image at %08lx ...\n",
 569                                 img_addr);
 570
 571                 if (!fit_check_format (fit_hdr)) {
 572                         puts ("Bad FIT kernel image format!\n");
 573                         show_boot_progress (-100);
 574                         return NULL;
 575                 }
 576                 show_boot_progress (100);
 577
 578                 if (!fit_uname_kernel) {
 579                         /*
 580                          * no kernel image node unit name, try to get config
 581                          * node first. If config unit node name is NULL
 582                          * fit_conf_get_node() will try to find default config node
 583                          */
 584                         show_boot_progress (101);
 585                         cfg_noffset = fit_conf_get_node (fit_hdr, fit_uname_config);
 586                         if (cfg_noffset < 0) {
 587                                 show_boot_progress (-101);
 588                                 return NULL;
 589                         }
 590                         /* save configuration uname provided in the first
 591                          * bootm argument
 592                          */
 593                         images->fit_uname_cfg = fdt_get_name (fit_hdr, cfg_noffset, NULL);
 594                         printf ("   Using '%s' configuration\n", images->fit_uname_cfg);
 595                         show_boot_progress (103);
 596
 597                         os_noffset = fit_conf_get_kernel_node (fit_hdr, cfg_noffset);
 598                         fit_uname_kernel = fit_get_name (fit_hdr, os_noffset, NULL);
 599                 } else {
 600                         /* get kernel component image node offset */
 601                         show_boot_progress (102);
 602                         os_noffset = fit_image_get_node (fit_hdr, fit_uname_kernel);
 603                 }
 604                 if (os_noffset < 0) {
 605                         show_boot_progress (-103);
 606                         return NULL;
 607                 }
 608
 609                 printf ("   Trying '%s' kernel subimage\n", fit_uname_kernel);
 610
 611                 show_boot_progress (104);
 612                 if (!fit_check_kernel (fit_hdr, os_noffset, images->verify))
 613                         return NULL;
 614
 615                 /* get kernel image data address and length */
 616                 if (fit_image_get_data (fit_hdr, os_noffset, &data, &len)) {
 617                         puts ("Could not find kernel subimage data!\n");
 618                         show_boot_progress (-107);
 619                         return NULL;
 620                 }
 621                 show_boot_progress (108);
 622
 623                 *os_len = len;
 624                 *os_data = (ulong)data;
 625                 images->fit_hdr_os = fit_hdr;
 626                 images->fit_uname_os = fit_uname_kernel;
 627                 images->fit_noffset_os = os_noffset;
 628                 break;
 629 #endif
 630         default:
 631                 printf ("Wrong Image Format for %s command\n", cmdtp->name);
 632                 show_boot_progress (-108);
 633                 return NULL;
 634         }
 635
 636         debug ("   kernel data at 0x%08lx, len = 0x%08lx (%d)\n",
 637                         *os_data, *os_len, *os_len);
 638
 639         return (void *)img_addr;
 640 }
 641
 642 U_BOOT_CMD(
 643         bootm,  CFG_MAXARGS,    1,      do_bootm,
 644         "bootm   - boot application image from memory\n",
 645         "[addr [arg ...]]\n    - boot application image stored in memory\n"
 646         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
 647         "\t'arg' can be the address of an initrd image\n"
 648 #if defined(CONFIG_OF_LIBFDT)
 649         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
 650         "\ta third argument is required which is the address of the\n"
 651         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
 652         "\tuse a '-' for the second argument. If you do not pass a third\n"
 653         "\ta bd_info struct will be passed instead\n"
 654 #endif
 655 #if defined(CONFIG_FIT)
 656         "\t\nFor the new multi component uImage format (FIT) addresses\n"
 657         "\tmust be extened to include component or configuration unit name:\n"
 658         "\taddr:<subimg_uname> - direct component image specification\n"
 659         "\taddr#<conf_uname>   - configuration specification\n"
 660         "\tUse iminfo command to get the list of existing component\n"
 661         "\timages and configurations.\n"
 662 #endif
 663 );
 664
 665 /*******************************************************************/
 666 /* bootd - boot default image */
 667 /*******************************************************************/
 668 #if defined(CONFIG_CMD_BOOTD)
 669 int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 670 {
 671         int rcode = 0;
 672
 673 #ifndef CFG_HUSH_PARSER
 674         if (run_command (getenv ("bootcmd"), flag) < 0)
 675                 rcode = 1;
 676 #else
 677         if (parse_string_outer (getenv ("bootcmd"),
 678                         FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0)
 679                 rcode = 1;
 680 #endif
 681         return rcode;
 682 }
 683
 684 U_BOOT_CMD(
 685         boot,   1,      1,      do_bootd,
 686         "boot    - boot default, i.e., run 'bootcmd'\n",
 687         NULL
 688 );
 689
 690 /* keep old command name "bootd" for backward compatibility */
 691 U_BOOT_CMD(
 692         bootd, 1,       1,      do_bootd,
 693         "bootd   - boot default, i.e., run 'bootcmd'\n",
 694         NULL
 695 );
 696
 697 #endif
 698
 699
 700 /*******************************************************************/
 701 /* iminfo - print header info for a requested image */
 702 /*******************************************************************/
 703 #if defined(CONFIG_CMD_IMI)
 704 int do_iminfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 705 {
 706         int     arg;
 707         ulong   addr;
 708         int     rcode = 0;
 709
 710         if (argc < 2) {
 711                 return image_info (load_addr);
 712         }
 713
 714         for (arg = 1; arg < argc; ++arg) {
 715                 addr = simple_strtoul (argv[arg], NULL, 16);
 716                 if (image_info (addr) != 0)
 717                         rcode = 1;
 718         }
 719         return rcode;
 720 }
 721
 722 static int image_info (ulong addr)
 723 {
 724         void *hdr = (void *)addr;
 725
 726         printf ("\n## Checking Image at %08lx ...\n", addr);
 727
 728         switch (genimg_get_format (hdr)) {
 729         case IMAGE_FORMAT_LEGACY:
 730                 puts ("   Legacy image found\n");
 731                 if (!image_check_magic (hdr)) {
 732                         puts ("   Bad Magic Number\n");
 733                         return 1;
 734                 }
 735
 736                 if (!image_check_hcrc (hdr)) {
 737                         puts ("   Bad Header Checksum\n");
 738                         return 1;
 739                 }
 740
 741                 image_print_contents (hdr);
 742
 743                 puts ("   Verifying Checksum ... ");
 744                 if (!image_check_dcrc (hdr)) {
 745                         puts ("   Bad Data CRC\n");
 746                         return 1;
 747                 }
 748                 puts ("OK\n");
 749                 return 0;
 750 #if defined(CONFIG_FIT)
 751         case IMAGE_FORMAT_FIT:
 752                 puts ("   FIT image found\n");
 753
 754                 if (!fit_check_format (hdr)) {
 755                         puts ("Bad FIT image format!\n");
 756                         return 1;
 757                 }
 758
 759                 fit_print_contents (hdr);
 760                 return 0;
 761 #endif
 762         default:
 763                 puts ("Unknown image format!\n");
 764                 break;
 765         }
 766
 767         return 1;
 768 }
 769
 770 U_BOOT_CMD(
 771         iminfo, CFG_MAXARGS,    1,      do_iminfo,
 772         "iminfo  - print header information for application image\n",
 773         "addr [addr ...]\n"
 774         "    - print header information for application image starting at\n"
 775         "      address 'addr' in memory; this includes verification of the\n"
 776         "      image contents (magic number, header and payload checksums)\n"
 777 );
 778 #endif
 779
 780
 781 /*******************************************************************/
 782 /* imls - list all images found in flash */
 783 /*******************************************************************/
 784 #if defined(CONFIG_CMD_IMLS)
 785 int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 786 {
 787         flash_info_t *info;
 788         int i, j;
 789         void *hdr;
 790
 791         for (i = 0, info = &flash_info[0];
 792                 i < CFG_MAX_FLASH_BANKS; ++i, ++info) {
 793
 794                 if (info->flash_id == FLASH_UNKNOWN)
 795                         goto next_bank;
 796                 for (j = 0; j < info->sector_count; ++j) {
 797
 798                         hdr = (void *)info->start[j];
 799                         if (!hdr)
 800                                 goto next_sector;
 801
 802                         switch (genimg_get_format (hdr)) {
 803                         case IMAGE_FORMAT_LEGACY:
 804                                 if (!image_check_hcrc (hdr))
 805                                         goto next_sector;
 806
 807                                 printf ("Legacy Image at %08lX:\n", (ulong)hdr);
 808                                 image_print_contents (hdr);
 809
 810                                 puts ("   Verifying Checksum ... ");
 811                                 if (!image_check_dcrc (hdr)) {
 812                                         puts ("Bad Data CRC\n");
 813                                 } else {
 814                                         puts ("OK\n");
 815                                 }
 816                                 break;
 817 #if defined(CONFIG_FIT)
 818                         case IMAGE_FORMAT_FIT:
 819                                 if (!fit_check_format (hdr))
 820                                         goto next_sector;
 821
 822                                 printf ("FIT Image at %08lX:\n", (ulong)hdr);
 823                                 fit_print_contents (hdr);
 824                                 break;
 825 #endif
 826                         default:
 827                                 goto next_sector;
 828                         }
 829
 830 next_sector:            ;
 831                 }
 832 next_bank:      ;
 833         }
 834
 835         return (0);
 836 }
 837
 838 U_BOOT_CMD(
 839         imls,   1,              1,      do_imls,
 840         "imls    - list all images found in flash\n",
 841         "\n"
 842         "    - Prints information about all images found at sector\n"
 843         "      boundaries in flash.\n"
 844 );
 845 #endif
 846
 847 /*******************************************************************/
 848 /* helper routines */
 849 /*******************************************************************/
 850 #ifdef CONFIG_SILENT_CONSOLE
 851 static void fixup_silent_linux ()
 852 {
 853         char buf[256], *start, *end;
 854         char *cmdline = getenv ("bootargs");
 855
 856         /* Only fix cmdline when requested */
 857         if (!(gd->flags & GD_FLG_SILENT))
 858                 return;
 859
 860         debug ("before silent fix-up: %s\n", cmdline);
 861         if (cmdline) {
 862                 if ((start = strstr (cmdline, "console=")) != NULL) {
 863                         end = strchr (start, ' ');
 864                         strncpy (buf, cmdline, (start - cmdline + 8));
 865                         if (end)
 866                                 strcpy (buf + (start - cmdline + 8), end);
 867                         else
 868                                 buf[start - cmdline + 8] = '\0';
 869                 } else {
 870                         strcpy (buf, cmdline);
 871                         strcat (buf, " console=");
 872                 }
 873         } else {
 874                 strcpy (buf, "console=");
 875         }
 876
 877         setenv ("bootargs", buf);
 878         debug ("after silent fix-up: %s\n", buf);
 879 }
 880 #endif /* CONFIG_SILENT_CONSOLE */
 881
 882
 883 /*******************************************************************/
 884 /* OS booting routines */
 885 /*******************************************************************/
 886
 887 static void do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
 888                             int argc, char *argv[],
 889                             bootm_headers_t *images)
 890 {
 891         void (*loader)(bd_t *, image_header_t *, char *, char *);
 892         image_header_t *os_hdr, *hdr;
 893         ulong kernel_data, kernel_len;
 894         char *consdev;
 895         char *cmdline;
 896
 897 #if defined(CONFIG_FIT)
 898         if (!images->legacy_hdr_valid) {
 899                 fit_unsupported_reset ("NetBSD");
 900                 do_reset (cmdtp, flag, argc, argv);
 901         }
 902 #endif
 903         hdr = images->legacy_hdr_os;
 904
 905         /*
 906          * Booting a (NetBSD) kernel image
 907          *
 908          * This process is pretty similar to a standalone application:
 909          * The (first part of an multi-) image must be a stage-2 loader,
 910          * which in turn is responsible for loading & invoking the actual
 911          * kernel.  The only differences are the parameters being passed:
 912          * besides the board info strucure, the loader expects a command
 913          * line, the name of the console device, and (optionally) the
 914          * address of the original image header.
 915          */
 916         os_hdr = NULL;
 917         if (image_check_type (hdr, IH_TYPE_MULTI)) {
 918                 image_multi_getimg (hdr, 1, &kernel_data, &kernel_len);
 919                 if (kernel_len)
 920                         os_hdr = hdr;
 921         }
 922
 923         consdev = "";
 924 #if   defined (CONFIG_8xx_CONS_SMC1)
 925         consdev = "smc1";
 926 #elif defined (CONFIG_8xx_CONS_SMC2)
 927         consdev = "smc2";
 928 #elif defined (CONFIG_8xx_CONS_SCC2)
 929         consdev = "scc2";
 930 #elif defined (CONFIG_8xx_CONS_SCC3)
 931         consdev = "scc3";
 932 #endif
 933
 934         if (argc > 2) {
 935                 ulong len;
 936                 int   i;
 937
 938                 for (i = 2, len = 0; i < argc; i += 1)
 939                         len += strlen (argv[i]) + 1;
 940                 cmdline = malloc (len);
 941
 942                 for (i = 2, len = 0; i < argc; i += 1) {
 943                         if (i > 2)
 944                                 cmdline[len++] = ' ';
 945                         strcpy (&cmdline[len], argv[i]);
 946                         len += strlen (argv[i]);
 947                 }
 948         } else if ((cmdline = getenv ("bootargs")) == NULL) {
 949                 cmdline = "";
 950         }
 951
 952         loader = (void (*)(bd_t *, image_header_t *, char *, char *))image_get_ep (hdr);
 953
 954         printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
 955                 (ulong)loader);
 956
 957         show_boot_progress (15);
 958
 959         /*
 960          * NetBSD Stage-2 Loader Parameters:
 961          *   r3: ptr to board info data
 962          *   r4: image address
 963          *   r5: console device
 964          *   r6: boot args string
 965          */
 966         (*loader) (gd->bd, os_hdr, consdev, cmdline);
 967 }
 968
 969 #ifdef CONFIG_LYNXKDI
 970 static void do_bootm_lynxkdi (cmd_tbl_t *cmdtp, int flag,
 971                              int argc, char *argv[],
 972                              bootm_headers_t *images)
 973 {
 974         image_header_t *hdr = images->legacy_hdr_os;
 975
 976 #if defined(CONFIG_FIT)
 977         if (!images->legacy_hdr_valid) {
 978                 fit_unsupported_reset ("Lynx");
 979                 do_reset (cmdtp, flag, argc, argv);
 980         }
 981 #endif
 982
 983         lynxkdi_boot ((image_header_t *)hdr);
 984 }
 985 #endif /* CONFIG_LYNXKDI */
 986
 987 static void do_bootm_rtems (cmd_tbl_t *cmdtp, int flag,
 988                            int argc, char *argv[],
 989                            bootm_headers_t *images)
 990 {
 991         image_header_t *hdr = images->legacy_hdr_os;
 992         void (*entry_point)(bd_t *);
 993
 994 #if defined(CONFIG_FIT)
 995         if (!images->legacy_hdr_valid) {
 996                 fit_unsupported_reset ("RTEMS");
 997                 do_reset (cmdtp, flag, argc, argv);
 998         }
 999 #endif
1000
1001         entry_point = (void (*)(bd_t *))image_get_ep (hdr);
1002
1003         printf ("## Transferring control to RTEMS (at address %08lx) ...\n",
1004                 (ulong)entry_point);
1005
1006         show_boot_progress (15);
1007
1008         /*
1009          * RTEMS Parameters:
1010          *   r3: ptr to board info data
1011          */
1012         (*entry_point)(gd->bd);
1013 }
1014
1015 #if defined(CONFIG_CMD_ELF)
1016 static void do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag,
1017                              int argc, char *argv[],
1018                              bootm_headers_t *images)
1019 {
1020         char str[80];
1021         image_header_t *hdr = images->legacy_hdr_os;
1022
1023 #if defined(CONFIG_FIT)
1024         if (hdr == NULL) {
1025                 fit_unsupported_reset ("VxWorks");
1026                 do_reset (cmdtp, flag, argc, argv);
1027         }
1028 #endif
1029
1030         sprintf(str, "%x", image_get_ep (hdr)); /* write entry-point into string */
1031         setenv("loadaddr", str);
1032         do_bootvx(cmdtp, 0, 0, NULL);
1033 }
1034
1035 static void do_bootm_qnxelf(cmd_tbl_t *cmdtp, int flag,
1036                             int argc, char *argv[],
1037                             bootm_headers_t *images)
1038 {
1039         char *local_args[2];
1040         char str[16];
1041         image_header_t *hdr = images->legacy_hdr_os;
1042
1043 #if defined(CONFIG_FIT)
1044         if (!images->legacy_hdr_valid) {
1045                 fit_unsupported_reset ("QNX");
1046                 do_reset (cmdtp, flag, argc, argv);
1047         }
1048 #endif
1049
1050         sprintf(str, "%x", image_get_ep (hdr)); /* write entry-point into string */
1051         local_args[0] = argv[0];
1052         local_args[1] = str;    /* and provide it via the arguments */
1053         do_bootelf(cmdtp, 0, 2, local_args);
1054 }
1055 #endif
1056
1057 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
1058 static void do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
1059                            int argc, char *argv[],
1060                            bootm_headers_t *images)
1061 {
1062         ulong top;
1063         char *s, *cmdline;
1064         char **fwenv, **ss;
1065         int i, j, nxt, len, envno, envsz;
1066         bd_t *kbd;
1067         void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top);
1068         image_header_t *hdr = images->legacy_hdr_os;
1069
1070 #if defined(CONFIG_FIT)
1071         if (!images->legacy_hdr_valid) {
1072                 fit_unsupported_reset ("ARTOS");
1073                 do_reset (cmdtp, flag, argc, argv);
1074         }
1075 #endif
1076
1077         /*
1078          * Booting an ARTOS kernel image + application
1079          */
1080
1081         /* this used to be the top of memory, but was wrong... */
1082 #ifdef CONFIG_PPC
1083         /* get stack pointer */
1084         asm volatile ("mr %0,1" : "=r"(top) );
1085 #endif
1086         debug ("## Current stack ends at 0x%08lX ", top);
1087
1088         top -= 2048;            /* just to be sure */
1089         if (top > CFG_BOOTMAPSZ)
1090                 top = CFG_BOOTMAPSZ;
1091         top &= ~0xF;
1092
1093         debug ("=> set upper limit to 0x%08lX\n", top);
1094
1095         /* first check the artos specific boot args, then the linux args*/
1096         if ((s = getenv( "abootargs")) == NULL && (s = getenv ("bootargs")) == NULL)
1097                 s = "";
1098
1099         /* get length of cmdline, and place it */
1100         len = strlen (s);
1101         top = (top - (len + 1)) & ~0xF;
1102         cmdline = (char *)top;
1103         debug ("## cmdline at 0x%08lX ", top);
1104         strcpy (cmdline, s);
1105
1106         /* copy bdinfo */
1107         top = (top - sizeof (bd_t)) & ~0xF;
1108         debug ("## bd at 0x%08lX ", top);
1109         kbd = (bd_t *)top;
1110         memcpy (kbd, gd->bd, sizeof (bd_t));
1111
1112         /* first find number of env entries, and their size */
1113         envno = 0;
1114         envsz = 0;
1115         for (i = 0; env_get_char (i) != '\0'; i = nxt + 1) {
1116                 for (nxt = i; env_get_char (nxt) != '\0'; ++nxt)
1117                         ;
1118                 envno++;
1119                 envsz += (nxt - i) + 1; /* plus trailing zero */
1120         }
1121         envno++;        /* plus the terminating zero */
1122         debug ("## %u envvars total size %u ", envno, envsz);
1123
1124         top = (top - sizeof (char **) * envno) & ~0xF;
1125         fwenv = (char **)top;
1126         debug ("## fwenv at 0x%08lX ", top);
1127
1128         top = (top - envsz) & ~0xF;
1129         s = (char *)top;
1130         ss = fwenv;
1131
1132         /* now copy them */
1133         for (i = 0; env_get_char (i) != '\0'; i = nxt + 1) {
1134                 for (nxt = i; env_get_char (nxt) != '\0'; ++nxt)
1135                         ;
1136                 *ss++ = s;
1137                 for (j = i; j < nxt; ++j)
1138                         *s++ = env_get_char (j);
1139                 *s++ = '\0';
1140         }
1141         *ss++ = NULL;   /* terminate */
1142
1143         entry = (void (*)(bd_t *, char *, char **, ulong))image_get_ep (hdr);
1144         (*entry) (kbd, cmdline, fwenv, top);
1145 }
1146 #endif