cmd/bootm.c

   1 /*
   2  * (C) Copyright 2000-2009
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 /*
   9  * Boot support
  10  */
  11 #include <common.h>
  12 #include <bootm.h>
  13 #include <command.h>
  14 #include <environment.h>
  15 #include <errno.h>
  16 #include <image.h>
  17 #include <malloc.h>
  18 #include <nand.h>
  19 #include <asm/byteorder.h>
  20 #include <linux/ctype.h>
  21 #include <linux/err.h>
  22 #include <u-boot/zlib.h>
  23
  24 DECLARE_GLOBAL_DATA_PTR;
  25
  26 #if defined(CONFIG_CMD_IMI)
  27 static int image_info(unsigned long addr);
  28 #endif
  29
  30 #if defined(CONFIG_CMD_IMLS)
  31 #include <flash.h>
  32 #include <mtd/cfi_flash.h>
  33 extern flash_info_t flash_info[]; /* info for FLASH chips */
  34 #endif
  35
  36 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
  37 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  38 #endif
  39
  40 /* we overload the cmd field with our state machine info instead of a
  41  * function pointer */
  42 static cmd_tbl_t cmd_bootm_sub[] = {
  43         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
  44         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
  45 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
  46         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
  47 #endif
  48 #ifdef CONFIG_OF_LIBFDT
  49         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
  50 #endif
  51         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
  52         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
  53         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
  54         U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""),
  55         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
  56 };
  57
  58 static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
  59                         char * const argv[])
  60 {
  61         int ret = 0;
  62         long state;
  63         cmd_tbl_t *c;
  64
  65         c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
  66         argc--; argv++;
  67
  68         if (c) {
  69                 state = (long)c->cmd;
  70                 if (state == BOOTM_STATE_START)
  71                         state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
  72         } else {
  73                 /* Unrecognized command */
  74                 return CMD_RET_USAGE;
  75         }
  76
  77         if (((state & BOOTM_STATE_START) != BOOTM_STATE_START) &&
  78             images.state >= state) {
  79                 printf("Trying to execute a command out of order\n");
  80                 return CMD_RET_USAGE;
  81         }
  82
  83         ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
  84
  85         return ret;
  86 }
  87
  88 /*******************************************************************/
  89 /* bootm - boot application image from image in memory */
  90 /*******************************************************************/
  91
  92 int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  93 {
  94 #ifdef CONFIG_NEEDS_MANUAL_RELOC
  95         static int relocated = 0;
  96
  97         if (!relocated) {
  98                 int i;
  99
 100                 /* relocate names of sub-command table */
 101                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
 102                         cmd_bootm_sub[i].name += gd->reloc_off;
 103
 104                 relocated = 1;
 105         }
 106 #endif
 107
 108         /* determine if we have a sub command */
 109         argc--; argv++;
 110         if (argc > 0) {
 111                 char *endp;
 112
 113                 simple_strtoul(argv[0], &endp, 16);
 114                 /* endp pointing to NULL means that argv[0] was just a
 115                  * valid number, pass it along to the normal bootm processing
 116                  *
 117                  * If endp is ':' or '#' assume a FIT identifier so pass
 118                  * along for normal processing.
 119                  *
 120                  * Right now we assume the first arg should never be '-'
 121                  */
 122                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 123                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 124         }
 125
 126         return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
 127                 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
 128                 BOOTM_STATE_LOADOS |
 129 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 130                 BOOTM_STATE_RAMDISK |
 131 #endif
 132 #if defined(CONFIG_PPC) || defined(CONFIG_MIPS)
 133                 BOOTM_STATE_OS_CMDLINE |
 134 #endif
 135                 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
 136                 BOOTM_STATE_OS_GO, &images, 1);
 137 }
 138
 139 int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
 140 {
 141         const char *ep = env_get("autostart");
 142
 143         if (ep && !strcmp(ep, "yes")) {
 144                 char *local_args[2];
 145                 local_args[0] = (char *)cmd;
 146                 local_args[1] = NULL;
 147                 printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
 148                 return do_bootm(cmdtp, 0, 1, local_args);
 149         }
 150
 151         return 0;
 152 }
 153
 154 #ifdef CONFIG_SYS_LONGHELP
 155 static char bootm_help_text[] =
 156         "[addr [arg ...]]\n    - boot application image stored in memory\n"
 157         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
 158         "\t'arg' can be the address of an initrd image\n"
 159 #if defined(CONFIG_OF_LIBFDT)
 160         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
 161         "\ta third argument is required which is the address of the\n"
 162         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
 163         "\tuse a '-' for the second argument. If you do not pass a third\n"
 164         "\ta bd_info struct will be passed instead\n"
 165 #endif
 166 #if defined(CONFIG_FIT)
 167         "\t\nFor the new multi component uImage format (FIT) addresses\n"
 168         "\tmust be extended to include component or configuration unit name:\n"
 169         "\taddr:<subimg_uname> - direct component image specification\n"
 170         "\taddr#<conf_uname>   - configuration specification\n"
 171         "\tUse iminfo command to get the list of existing component\n"
 172         "\timages and configurations.\n"
 173 #endif
 174         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
 175         "must be\n"
 176         "issued in the order below (it's ok to not issue all sub-commands):\n"
 177         "\tstart [addr [arg ...]]\n"
 178         "\tloados  - load OS image\n"
 179 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
 180         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
 181 #endif
 182 #if defined(CONFIG_OF_LIBFDT)
 183         "\tfdt     - relocate flat device tree\n"
 184 #endif
 185         "\tcmdline - OS specific command line processing/setup\n"
 186         "\tbdt     - OS specific bd_t processing\n"
 187         "\tprep    - OS specific prep before relocation or go\n"
 188 #if defined(CONFIG_TRACE)
 189         "\tfake    - OS specific fake start without go\n"
 190 #endif
 191         "\tgo      - start OS";
 192 #endif
 193
 194 U_BOOT_CMD(
 195         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
 196         "boot application image from memory", bootm_help_text
 197 );
 198
 199 /*******************************************************************/
 200 /* bootd - boot default image */
 201 /*******************************************************************/
 202 #if defined(CONFIG_CMD_BOOTD)
 203 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 204 {
 205         return run_command(env_get("bootcmd"), flag);
 206 }
 207
 208 U_BOOT_CMD(
 209         boot,   1,      1,      do_bootd,
 210         "boot default, i.e., run 'bootcmd'",
 211         ""
 212 );
 213
 214 /* keep old command name "bootd" for backward compatibility */
 215 U_BOOT_CMD(
 216         bootd, 1,       1,      do_bootd,
 217         "boot default, i.e., run 'bootcmd'",
 218         ""
 219 );
 220
 221 #endif
 222
 223
 224 /*******************************************************************/
 225 /* iminfo - print header info for a requested image */
 226 /*******************************************************************/
 227 #if defined(CONFIG_CMD_IMI)
 228 static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 229 {
 230         int     arg;
 231         ulong   addr;
 232         int     rcode = 0;
 233
 234         if (argc < 2) {
 235                 return image_info(load_addr);
 236         }
 237
 238         for (arg = 1; arg < argc; ++arg) {
 239                 addr = simple_strtoul(argv[arg], NULL, 16);
 240                 if (image_info(addr) != 0)
 241                         rcode = 1;
 242         }
 243         return rcode;
 244 }
 245
 246 static int image_info(ulong addr)
 247 {
 248         void *hdr = (void *)addr;
 249
 250         printf("\n## Checking Image at %08lx ...\n", addr);
 251
 252         switch (genimg_get_format(hdr)) {
 253 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 254         case IMAGE_FORMAT_LEGACY:
 255                 puts("   Legacy image found\n");
 256                 if (!image_check_magic(hdr)) {
 257                         puts("   Bad Magic Number\n");
 258                         return 1;
 259                 }
 260
 261                 if (!image_check_hcrc(hdr)) {
 262                         puts("   Bad Header Checksum\n");
 263                         return 1;
 264                 }
 265
 266                 image_print_contents(hdr);
 267
 268                 puts("   Verifying Checksum ... ");
 269                 if (!image_check_dcrc(hdr)) {
 270                         puts("   Bad Data CRC\n");
 271                         return 1;
 272                 }
 273                 puts("OK\n");
 274                 return 0;
 275 #endif
 276 #if defined(CONFIG_ANDROID_BOOT_IMAGE)
 277         case IMAGE_FORMAT_ANDROID:
 278                 puts("   Android image found\n");
 279                 android_print_contents(hdr);
 280                 return 0;
 281 #endif
 282 #if defined(CONFIG_FIT)
 283         case IMAGE_FORMAT_FIT:
 284                 puts("   FIT image found\n");
 285
 286                 if (!fit_check_format(hdr)) {
 287                         puts("Bad FIT image format!\n");
 288                         return 1;
 289                 }
 290
 291                 fit_print_contents(hdr);
 292
 293                 if (!fit_all_image_verify(hdr)) {
 294                         puts("Bad hash in FIT image!\n");
 295                         return 1;
 296                 }
 297
 298                 return 0;
 299 #endif
 300         default:
 301                 puts("Unknown image format!\n");
 302                 break;
 303         }
 304
 305         return 1;
 306 }
 307
 308 U_BOOT_CMD(
 309         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
 310         "print header information for application image",
 311         "addr [addr ...]\n"
 312         "    - print header information for application image starting at\n"
 313         "      address 'addr' in memory; this includes verification of the\n"
 314         "      image contents (magic number, header and payload checksums)"
 315 );
 316 #endif
 317
 318
 319 /*******************************************************************/
 320 /* imls - list all images found in flash */
 321 /*******************************************************************/
 322 #if defined(CONFIG_CMD_IMLS)
 323 static int do_imls_nor(void)
 324 {
 325         flash_info_t *info;
 326         int i, j;
 327         void *hdr;
 328
 329         for (i = 0, info = &flash_info[0];
 330                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
 331
 332                 if (info->flash_id == FLASH_UNKNOWN)
 333                         goto next_bank;
 334                 for (j = 0; j < info->sector_count; ++j) {
 335
 336                         hdr = (void *)info->start[j];
 337                         if (!hdr)
 338                                 goto next_sector;
 339
 340                         switch (genimg_get_format(hdr)) {
 341 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 342                         case IMAGE_FORMAT_LEGACY:
 343                                 if (!image_check_hcrc(hdr))
 344                                         goto next_sector;
 345
 346                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
 347                                 image_print_contents(hdr);
 348
 349                                 puts("   Verifying Checksum ... ");
 350                                 if (!image_check_dcrc(hdr)) {
 351                                         puts("Bad Data CRC\n");
 352                                 } else {
 353                                         puts("OK\n");
 354                                 }
 355                                 break;
 356 #endif
 357 #if defined(CONFIG_FIT)
 358                         case IMAGE_FORMAT_FIT:
 359                                 if (!fit_check_format(hdr))
 360                                         goto next_sector;
 361
 362                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
 363                                 fit_print_contents(hdr);
 364                                 break;
 365 #endif
 366                         default:
 367                                 goto next_sector;
 368                         }
 369
 370 next_sector:            ;
 371                 }
 372 next_bank:      ;
 373         }
 374         return 0;
 375 }
 376 #endif
 377
 378 #if defined(CONFIG_CMD_IMLS_NAND)
 379 static int nand_imls_legacyimage(struct mtd_info *mtd, int nand_dev,
 380                                  loff_t off, size_t len)
 381 {
 382         void *imgdata;
 383         int ret;
 384
 385         imgdata = malloc(len);
 386         if (!imgdata) {
 387                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
 388                                 nand_dev, off);
 389                 printf("   Low memory(cannot allocate memory for image)\n");
 390                 return -ENOMEM;
 391         }
 392
 393         ret = nand_read_skip_bad(mtd, off, &len, NULL, mtd->size, imgdata);
 394         if (ret < 0 && ret != -EUCLEAN) {
 395                 free(imgdata);
 396                 return ret;
 397         }
 398
 399         if (!image_check_hcrc(imgdata)) {
 400                 free(imgdata);
 401                 return 0;
 402         }
 403
 404         printf("Legacy Image at NAND device %d offset %08llX:\n",
 405                         nand_dev, off);
 406         image_print_contents(imgdata);
 407
 408         puts("   Verifying Checksum ... ");
 409         if (!image_check_dcrc(imgdata))
 410                 puts("Bad Data CRC\n");
 411         else
 412                 puts("OK\n");
 413
 414         free(imgdata);
 415
 416         return 0;
 417 }
 418
 419 static int nand_imls_fitimage(struct mtd_info *mtd, int nand_dev, loff_t off,
 420                               size_t len)
 421 {
 422         void *imgdata;
 423         int ret;
 424
 425         imgdata = malloc(len);
 426         if (!imgdata) {
 427                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
 428                                 nand_dev, off);
 429                 printf("   Low memory(cannot allocate memory for image)\n");
 430                 return -ENOMEM;
 431         }
 432
 433         ret = nand_read_skip_bad(mtd, off, &len, NULL, mtd->size, imgdata);
 434         if (ret < 0 && ret != -EUCLEAN) {
 435                 free(imgdata);
 436                 return ret;
 437         }
 438
 439         if (!fit_check_format(imgdata)) {
 440                 free(imgdata);
 441                 return 0;
 442         }
 443
 444         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
 445
 446         fit_print_contents(imgdata);
 447         free(imgdata);
 448
 449         return 0;
 450 }
 451
 452 static int do_imls_nand(void)
 453 {
 454         struct mtd_info *mtd;
 455         int nand_dev = nand_curr_device;
 456         size_t len;
 457         loff_t off;
 458         u32 buffer[16];
 459
 460         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
 461                 puts("\nNo NAND devices available\n");
 462                 return -ENODEV;
 463         }
 464
 465         printf("\n");
 466
 467         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
 468                 mtd = get_nand_dev_by_index(nand_dev);
 469                 if (!mtd->name || !mtd->size)
 470                         continue;
 471
 472                 for (off = 0; off < mtd->size; off += mtd->erasesize) {
 473                         const image_header_t *header;
 474                         int ret;
 475
 476                         if (nand_block_isbad(mtd, off))
 477                                 continue;
 478
 479                         len = sizeof(buffer);
 480
 481                         ret = nand_read(mtd, off, &len, (u8 *)buffer);
 482                         if (ret < 0 && ret != -EUCLEAN) {
 483                                 printf("NAND read error %d at offset %08llX\n",
 484                                                 ret, off);
 485                                 continue;
 486                         }
 487
 488                         switch (genimg_get_format(buffer)) {
 489 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
 490                         case IMAGE_FORMAT_LEGACY:
 491                                 header = (const image_header_t *)buffer;
 492
 493                                 len = image_get_image_size(header);
 494                                 nand_imls_legacyimage(mtd, nand_dev, off, len);
 495                                 break;
 496 #endif
 497 #if defined(CONFIG_FIT)
 498                         case IMAGE_FORMAT_FIT:
 499                                 len = fit_get_size(buffer);
 500                                 nand_imls_fitimage(mtd, nand_dev, off, len);
 501                                 break;
 502 #endif
 503                         }
 504                 }
 505         }
 506
 507         return 0;
 508 }
 509 #endif
 510
 511 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
 512 static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 513 {
 514         int ret_nor = 0, ret_nand = 0;
 515
 516 #if defined(CONFIG_CMD_IMLS)
 517         ret_nor = do_imls_nor();
 518 #endif
 519
 520 #if defined(CONFIG_CMD_IMLS_NAND)
 521         ret_nand = do_imls_nand();
 522 #endif
 523
 524         if (ret_nor)
 525                 return ret_nor;
 526
 527         if (ret_nand)
 528                 return ret_nand;
 529
 530         return (0);
 531 }
 532
 533 U_BOOT_CMD(
 534         imls,   1,              1,      do_imls,
 535         "list all images found in flash",
 536         "\n"
 537         "    - Prints information about all images found at sector/block\n"
 538         "      boundaries in nor/nand flash."
 539 );
 540 #endif