cmd/bootm.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2000-2009
   4  * Wolfgang Denk, DENX Software Engineering, [email protected].
   5  */
   6
   7 /*
   8  * Boot support
   9  */
  10 #include <common.h>
  11 #include <bootm.h>
  12 #include <command.h>
  13 #include <env.h>
  14 #include <errno.h>
  15 #include <image.h>
  16 #include <malloc.h>
  17 #include <nand.h>
  18 #include <asm/byteorder.h>
  19 #include <asm/global_data.h>
  20 #include <linux/ctype.h>
  21 #include <linux/err.h>
  22 #include <u-boot/zlib.h>
  23 #include <mapmem.h>
  24
  25 DECLARE_GLOBAL_DATA_PTR;
  26
  27 #if defined(CONFIG_CMD_IMI)
  28 static int image_info(unsigned long addr);
  29 #endif
  30
  31 #if defined(CONFIG_CMD_IMLS)
  32 #include <flash.h>
  33 #include <mtd/cfi_flash.h>
  34 extern flash_info_t flash_info[]; /* info for FLASH chips */
  35 #endif
  36
  37 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
  38 static int do_imls(struct cmd_tbl *cmdtp, int flag, int argc,
  39                    char *const argv[]);
  40 #endif
  41
  42 /* we overload the cmd field with our state machine info instead of a
  43  * function pointer */
  44 static struct cmd_tbl cmd_bootm_sub[] = {
  45         U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
  46         U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
  47 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
  48         U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
  49 #endif
  50 #ifdef CONFIG_OF_LIBFDT
  51         U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
  52 #endif
  53         U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
  54         U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
  55         U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
  56         U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""),
  57         U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
  58 };
  59
  60 static int do_bootm_subcommand(struct cmd_tbl *cmdtp, int flag, int argc,
  61                                char *const argv[])
  62 {
  63         int ret = 0;
  64         long state;
  65         struct cmd_tbl *c;
  66
  67         c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
  68         argc--; argv++;
  69
  70         if (c) {
  71                 state = (long)c->cmd;
  72                 if (state == BOOTM_STATE_START)
  73                         state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
  74         } else {
  75                 /* Unrecognized command */
  76                 return CMD_RET_USAGE;
  77         }
  78
  79         if (((state & BOOTM_STATE_START) != BOOTM_STATE_START) &&
  80             images.state >= state) {
  81                 printf("Trying to execute a command out of order\n");
  82                 return CMD_RET_USAGE;
  83         }
  84
  85         ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
  86
  87         return ret;
  88 }
  89
  90 /*******************************************************************/
  91 /* bootm - boot application image from image in memory */
  92 /*******************************************************************/
  93
  94 int do_bootm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  95 {
  96 #ifdef CONFIG_NEEDS_MANUAL_RELOC
  97         static int relocated = 0;
  98
  99         if (!relocated) {
 100                 int i;
 101
 102                 /* relocate names of sub-command table */
 103                 for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
 104                         cmd_bootm_sub[i].name += gd->reloc_off;
 105
 106                 relocated = 1;
 107         }
 108 #endif
 109
 110         /* determine if we have a sub command */
 111         argc--; argv++;
 112         if (argc > 0) {
 113                 char *endp;
 114
 115                 hextoul(argv[0], &endp);
 116                 /* endp pointing to NULL means that argv[0] was just a
 117                  * valid number, pass it along to the normal bootm processing
 118                  *
 119                  * If endp is ':' or '#' assume a FIT identifier so pass
 120                  * along for normal processing.
 121                  *
 122                  * Right now we assume the first arg should never be '-'
 123                  */
 124                 if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
 125                         return do_bootm_subcommand(cmdtp, flag, argc, argv);
 126         }
 127
 128         return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
 129                 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
 130                 BOOTM_STATE_LOADOS |
 131 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
 132                 BOOTM_STATE_RAMDISK |
 133 #endif
 134 #if defined(CONFIG_PPC) || defined(CONFIG_MIPS)
 135                 BOOTM_STATE_OS_CMDLINE |
 136 #endif
 137                 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
 138                 BOOTM_STATE_OS_GO, &images, 1);
 139 }
 140
 141 int bootm_maybe_autostart(struct cmd_tbl *cmdtp, const char *cmd)
 142 {
 143         if (env_get_autostart()) {
 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",
 148                        image_load_addr);
 149                 return do_bootm(cmdtp, 0, 1, local_args);
 150         }
 151
 152         return 0;
 153 }
 154
 155 #ifdef CONFIG_SYS_LONGHELP
 156 static char bootm_help_text[] =
 157         "[addr [arg ...]]\n    - boot application image stored in memory\n"
 158         "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
 159         "\t'arg' can be the address of an initrd image\n"
 160 #if defined(CONFIG_OF_LIBFDT)
 161         "\tWhen booting a Linux kernel which requires a flat device-tree\n"
 162         "\ta third argument is required which is the address of the\n"
 163         "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
 164         "\tuse a '-' for the second argument. If you do not pass a third\n"
 165         "\ta bd_info struct will be passed instead\n"
 166 #endif
 167 #if defined(CONFIG_FIT)
 168         "\t\nFor the new multi component uImage format (FIT) addresses\n"
 169         "\tmust be extended to include component or configuration unit name:\n"
 170         "\taddr:<subimg_uname> - direct component image specification\n"
 171         "\taddr#<conf_uname>   - configuration specification\n"
 172         "\tUse iminfo command to get the list of existing component\n"
 173         "\timages and configurations.\n"
 174 #endif
 175         "\nSub-commands to do part of the bootm sequence.  The sub-commands "
 176         "must be\n"
 177         "issued in the order below (it's ok to not issue all sub-commands):\n"
 178         "\tstart [addr [arg ...]]\n"
 179         "\tloados  - load OS image\n"
 180 #if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
 181         "\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
 182 #endif
 183 #if defined(CONFIG_OF_LIBFDT)
 184         "\tfdt     - relocate flat device tree\n"
 185 #endif
 186         "\tcmdline - OS specific command line processing/setup\n"
 187         "\tbdt     - OS specific bd_info processing\n"
 188         "\tprep    - OS specific prep before relocation or go\n"
 189 #if defined(CONFIG_TRACE)
 190         "\tfake    - OS specific fake start without go\n"
 191 #endif
 192         "\tgo      - start OS";
 193 #endif
 194
 195 U_BOOT_CMD(
 196         bootm,  CONFIG_SYS_MAXARGS,     1,      do_bootm,
 197         "boot application image from memory", bootm_help_text
 198 );
 199
 200 /*******************************************************************/
 201 /* bootd - boot default image */
 202 /*******************************************************************/
 203 #if defined(CONFIG_CMD_BOOTD)
 204 int do_bootd(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 205 {
 206         return run_command(env_get("bootcmd"), flag);
 207 }
 208
 209 U_BOOT_CMD(
 210         boot,   1,      1,      do_bootd,
 211         "boot default, i.e., run 'bootcmd'",
 212         ""
 213 );
 214
 215 /* keep old command name "bootd" for backward compatibility */
 216 U_BOOT_CMD(
 217         bootd, 1,       1,      do_bootd,
 218         "boot default, i.e., run 'bootcmd'",
 219         ""
 220 );
 221
 222 #endif
 223
 224
 225 /*******************************************************************/
 226 /* iminfo - print header info for a requested image */
 227 /*******************************************************************/
 228 #if defined(CONFIG_CMD_IMI)
 229 static int do_iminfo(struct cmd_tbl *cmdtp, int flag, int argc,
 230                      char *const argv[])
 231 {
 232         int     arg;
 233         ulong   addr;
 234         int     rcode = 0;
 235
 236         if (argc < 2) {
 237                 return image_info(image_load_addr);
 238         }
 239
 240         for (arg = 1; arg < argc; ++arg) {
 241                 addr = hextoul(argv[arg], NULL);
 242                 if (image_info(addr) != 0)
 243                         rcode = 1;
 244         }
 245         return rcode;
 246 }
 247
 248 static int image_info(ulong addr)
 249 {
 250         void *hdr = (void *)map_sysmem(addr, 0);
 251
 252         printf("\n## Checking Image at %08lx ...\n", addr);
 253
 254         switch (genimg_get_format(hdr)) {
 255 #if defined(CONFIG_LEGACY_IMAGE_FORMAT)
 256         case IMAGE_FORMAT_LEGACY:
 257                 puts("   Legacy image found\n");
 258                 if (!image_check_magic(hdr)) {
 259                         puts("   Bad Magic Number\n");
 260                         unmap_sysmem(hdr);
 261                         return 1;
 262                 }
 263
 264                 if (!image_check_hcrc(hdr)) {
 265                         puts("   Bad Header Checksum\n");
 266                         unmap_sysmem(hdr);
 267                         return 1;
 268                 }
 269
 270                 image_print_contents(hdr);
 271
 272                 puts("   Verifying Checksum ... ");
 273                 if (!image_check_dcrc(hdr)) {
 274                         puts("   Bad Data CRC\n");
 275                         unmap_sysmem(hdr);
 276                         return 1;
 277                 }
 278                 puts("OK\n");
 279                 unmap_sysmem(hdr);
 280                 return 0;
 281 #endif
 282 #if defined(CONFIG_ANDROID_BOOT_IMAGE)
 283         case IMAGE_FORMAT_ANDROID:
 284                 puts("   Android image found\n");
 285                 android_print_contents(hdr);
 286                 unmap_sysmem(hdr);
 287                 return 0;
 288 #endif
 289 #if defined(CONFIG_FIT)
 290         case IMAGE_FORMAT_FIT:
 291                 puts("   FIT image found\n");
 292
 293                 if (fit_check_format(hdr, IMAGE_SIZE_INVAL)) {
 294                         puts("Bad FIT image format!\n");
 295                         unmap_sysmem(hdr);
 296                         return 1;
 297                 }
 298
 299                 fit_print_contents(hdr);
 300
 301                 if (!fit_all_image_verify(hdr)) {
 302                         puts("Bad hash in FIT image!\n");
 303                         unmap_sysmem(hdr);
 304                         return 1;
 305                 }
 306
 307                 unmap_sysmem(hdr);
 308                 return 0;
 309 #endif
 310         default:
 311                 puts("Unknown image format!\n");
 312                 break;
 313         }
 314
 315         unmap_sysmem(hdr);
 316         return 1;
 317 }
 318
 319 U_BOOT_CMD(
 320         iminfo, CONFIG_SYS_MAXARGS,     1,      do_iminfo,
 321         "print header information for application image",
 322         "addr [addr ...]\n"
 323         "    - print header information for application image starting at\n"
 324         "      address 'addr' in memory; this includes verification of the\n"
 325         "      image contents (magic number, header and payload checksums)"
 326 );
 327 #endif
 328
 329
 330 /*******************************************************************/
 331 /* imls - list all images found in flash */
 332 /*******************************************************************/
 333 #if defined(CONFIG_CMD_IMLS)
 334 static int do_imls_nor(void)
 335 {
 336         flash_info_t *info;
 337         int i, j;
 338         void *hdr;
 339
 340         for (i = 0, info = &flash_info[0];
 341                 i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
 342
 343                 if (info->flash_id == FLASH_UNKNOWN)
 344                         goto next_bank;
 345                 for (j = 0; j < info->sector_count; ++j) {
 346
 347                         hdr = (void *)info->start[j];
 348                         if (!hdr)
 349                                 goto next_sector;
 350
 351                         switch (genimg_get_format(hdr)) {
 352 #if defined(CONFIG_LEGACY_IMAGE_FORMAT)
 353                         case IMAGE_FORMAT_LEGACY:
 354                                 if (!image_check_hcrc(hdr))
 355                                         goto next_sector;
 356
 357                                 printf("Legacy Image at %08lX:\n", (ulong)hdr);
 358                                 image_print_contents(hdr);
 359
 360                                 puts("   Verifying Checksum ... ");
 361                                 if (!image_check_dcrc(hdr)) {
 362                                         puts("Bad Data CRC\n");
 363                                 } else {
 364                                         puts("OK\n");
 365                                 }
 366                                 break;
 367 #endif
 368 #if defined(CONFIG_FIT)
 369                         case IMAGE_FORMAT_FIT:
 370                                 if (fit_check_format(hdr, IMAGE_SIZE_INVAL))
 371                                         goto next_sector;
 372
 373                                 printf("FIT Image at %08lX:\n", (ulong)hdr);
 374                                 fit_print_contents(hdr);
 375                                 break;
 376 #endif
 377                         default:
 378                                 goto next_sector;
 379                         }
 380
 381 next_sector:            ;
 382                 }
 383 next_bank:      ;
 384         }
 385         return 0;
 386 }
 387 #endif
 388
 389 #if defined(CONFIG_CMD_IMLS_NAND)
 390 static int nand_imls_legacyimage(struct mtd_info *mtd, int nand_dev,
 391                                  loff_t off, size_t len)
 392 {
 393         void *imgdata;
 394         int ret;
 395
 396         imgdata = malloc(len);
 397         if (!imgdata) {
 398                 printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
 399                                 nand_dev, off);
 400                 printf("   Low memory(cannot allocate memory for image)\n");
 401                 return -ENOMEM;
 402         }
 403
 404         ret = nand_read_skip_bad(mtd, off, &len, NULL, mtd->size, imgdata);
 405         if (ret < 0 && ret != -EUCLEAN) {
 406                 free(imgdata);
 407                 return ret;
 408         }
 409
 410         if (!image_check_hcrc(imgdata)) {
 411                 free(imgdata);
 412                 return 0;
 413         }
 414
 415         printf("Legacy Image at NAND device %d offset %08llX:\n",
 416                         nand_dev, off);
 417         image_print_contents(imgdata);
 418
 419         puts("   Verifying Checksum ... ");
 420         if (!image_check_dcrc(imgdata))
 421                 puts("Bad Data CRC\n");
 422         else
 423                 puts("OK\n");
 424
 425         free(imgdata);
 426
 427         return 0;
 428 }
 429
 430 static int nand_imls_fitimage(struct mtd_info *mtd, int nand_dev, loff_t off,
 431                               size_t len)
 432 {
 433         void *imgdata;
 434         int ret;
 435
 436         imgdata = malloc(len);
 437         if (!imgdata) {
 438                 printf("May be a FIT Image at NAND device %d offset %08llX:\n",
 439                                 nand_dev, off);
 440                 printf("   Low memory(cannot allocate memory for image)\n");
 441                 return -ENOMEM;
 442         }
 443
 444         ret = nand_read_skip_bad(mtd, off, &len, NULL, mtd->size, imgdata);
 445         if (ret < 0 && ret != -EUCLEAN) {
 446                 free(imgdata);
 447                 return ret;
 448         }
 449
 450         if (fit_check_format(imgdata, IMAGE_SIZE_INVAL)) {
 451                 free(imgdata);
 452                 return 0;
 453         }
 454
 455         printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
 456
 457         fit_print_contents(imgdata);
 458         free(imgdata);
 459
 460         return 0;
 461 }
 462
 463 static int do_imls_nand(void)
 464 {
 465         struct mtd_info *mtd;
 466         int nand_dev = nand_curr_device;
 467         size_t len;
 468         loff_t off;
 469         u32 buffer[16];
 470
 471         if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
 472                 puts("\nNo NAND devices available\n");
 473                 return -ENODEV;
 474         }
 475
 476         printf("\n");
 477
 478         for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
 479                 mtd = get_nand_dev_by_index(nand_dev);
 480                 if (!mtd->name || !mtd->size)
 481                         continue;
 482
 483                 for (off = 0; off < mtd->size; off += mtd->erasesize) {
 484                         const image_header_t *header;
 485                         int ret;
 486
 487                         if (nand_block_isbad(mtd, off))
 488                                 continue;
 489
 490                         len = sizeof(buffer);
 491
 492                         ret = nand_read(mtd, off, &len, (u8 *)buffer);
 493                         if (ret < 0 && ret != -EUCLEAN) {
 494                                 printf("NAND read error %d at offset %08llX\n",
 495                                                 ret, off);
 496                                 continue;
 497                         }
 498
 499                         switch (genimg_get_format(buffer)) {
 500 #if defined(CONFIG_LEGACY_IMAGE_FORMAT)
 501                         case IMAGE_FORMAT_LEGACY:
 502                                 header = (const image_header_t *)buffer;
 503
 504                                 len = image_get_image_size(header);
 505                                 nand_imls_legacyimage(mtd, nand_dev, off, len);
 506                                 break;
 507 #endif
 508 #if defined(CONFIG_FIT)
 509                         case IMAGE_FORMAT_FIT:
 510                                 len = fit_get_size(buffer);
 511                                 nand_imls_fitimage(mtd, nand_dev, off, len);
 512                                 break;
 513 #endif
 514                         }
 515                 }
 516         }
 517
 518         return 0;
 519 }
 520 #endif
 521
 522 #if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
 523 static int do_imls(struct cmd_tbl *cmdtp, int flag, int argc,
 524                    char *const argv[])
 525 {
 526         int ret_nor = 0, ret_nand = 0;
 527
 528 #if defined(CONFIG_CMD_IMLS)
 529         ret_nor = do_imls_nor();
 530 #endif
 531
 532 #if defined(CONFIG_CMD_IMLS_NAND)
 533         ret_nand = do_imls_nand();
 534 #endif
 535
 536         if (ret_nor)
 537                 return ret_nor;
 538
 539         if (ret_nand)
 540                 return ret_nand;
 541
 542         return (0);
 543 }
 544
 545 U_BOOT_CMD(
 546         imls,   1,              1,      do_imls,
 547         "list all images found in flash",
 548         "\n"
 549         "    - Prints information about all images found at sector/block\n"
 550         "      boundaries in nor/nand flash."
 551 );
 552 #endif