common/cmd_nand.c

   1 /*
   2  * Driver for NAND support, Rick Bronson
   3  * borrowed heavily from:
   4  * (c) 1999 Machine Vision Holdings, Inc.
   5  * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org>
   6  *
   7  * Ported 'dynenv' to 'nand env.oob' command
   8  * (C) 2010 Nanometrics, Inc.
   9  * 'dynenv' -- Dynamic environment offset in NAND OOB
  10  * (C) Copyright 2006-2007 OpenMoko, Inc.
  11  * Added 16-bit nand support
  12  * (C) 2004 Texas Instruments
  13  *
  14  * Copyright 2010 Freescale Semiconductor
  15  * The portions of this file whose copyright is held by Freescale and which
  16  * are not considered a derived work of GPL v2-only code may be distributed
  17  * and/or modified under the terms of the GNU General Public License as
  18  * published by the Free Software Foundation; either version 2 of the
  19  * License, or (at your option) any later version.
  20  */
  21
  22 #include <common.h>
  23 #include <linux/mtd/mtd.h>
  24 #include <command.h>
  25 #include <watchdog.h>
  26 #include <malloc.h>
  27 #include <asm/byteorder.h>
  28 #include <jffs2/jffs2.h>
  29 #include <nand.h>
  30
  31 #if defined(CONFIG_CMD_MTDPARTS)
  32
  33 /* partition handling routines */
  34 int mtdparts_init(void);
  35 int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
  36 int find_dev_and_part(const char *id, struct mtd_device **dev,
  37                       u8 *part_num, struct part_info **part);
  38 #endif
  39
  40 static int nand_dump(nand_info_t *nand, ulong off, int only_oob)
  41 {
  42         int i;
  43         u_char *datbuf, *oobbuf, *p;
  44
  45         datbuf = malloc(nand->writesize + nand->oobsize);
  46         oobbuf = malloc(nand->oobsize);
  47         if (!datbuf || !oobbuf) {
  48                 puts("No memory for page buffer\n");
  49                 return 1;
  50         }
  51         off &= ~(nand->writesize - 1);
  52         loff_t addr = (loff_t) off;
  53         struct mtd_oob_ops ops;
  54         memset(&ops, 0, sizeof(ops));
  55         ops.datbuf = datbuf;
  56         ops.oobbuf = oobbuf; /* must exist, but oob data will be appended to ops.datbuf */
  57         ops.len = nand->writesize;
  58         ops.ooblen = nand->oobsize;
  59         ops.mode = MTD_OOB_RAW;
  60         i = nand->read_oob(nand, addr, &ops);
  61         if (i < 0) {
  62                 printf("Error (%d) reading page %08lx\n", i, off);
  63                 free(datbuf);
  64                 free(oobbuf);
  65                 return 1;
  66         }
  67         printf("Page %08lx dump:\n", off);
  68         i = nand->writesize >> 4;
  69         p = datbuf;
  70
  71         while (i--) {
  72                 if (!only_oob)
  73                         printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
  74                                "  %02x %02x %02x %02x %02x %02x %02x %02x\n",
  75                                p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
  76                                p[8], p[9], p[10], p[11], p[12], p[13], p[14],
  77                                p[15]);
  78                 p += 16;
  79         }
  80         puts("OOB:\n");
  81         i = nand->oobsize >> 3;
  82         while (i--) {
  83                 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
  84                        p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
  85                 p += 8;
  86         }
  87         free(datbuf);
  88         free(oobbuf);
  89
  90         return 0;
  91 }
  92
  93 /* ------------------------------------------------------------------------- */
  94
  95 static int set_dev(int dev)
  96 {
  97         if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE ||
  98             !nand_info[dev].name) {
  99                 puts("No such device\n");
 100                 return -1;
 101         }
 102
 103         if (nand_curr_device == dev)
 104                 return 0;
 105
 106         printf("Device %d: %s", dev, nand_info[dev].name);
 107         puts("... is now current device\n");
 108         nand_curr_device = dev;
 109
 110 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE
 111         board_nand_select_device(nand_info[dev].priv, dev);
 112 #endif
 113
 114         return 0;
 115 }
 116
 117 static inline int str2off(const char *p, loff_t *num)
 118 {
 119         char *endptr;
 120
 121         *num = simple_strtoull(p, &endptr, 16);
 122         return *p != '\0' && *endptr == '\0';
 123 }
 124
 125 static inline int str2long(const char *p, ulong *num)
 126 {
 127         char *endptr;
 128
 129         *num = simple_strtoul(p, &endptr, 16);
 130         return *p != '\0' && *endptr == '\0';
 131 }
 132
 133 static int get_part(const char *partname, int *idx, loff_t *off, loff_t *size)
 134 {
 135 #ifdef CONFIG_CMD_MTDPARTS
 136         struct mtd_device *dev;
 137         struct part_info *part;
 138         u8 pnum;
 139         int ret;
 140
 141         ret = mtdparts_init();
 142         if (ret)
 143                 return ret;
 144
 145         ret = find_dev_and_part(partname, &dev, &pnum, &part);
 146         if (ret)
 147                 return ret;
 148
 149         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 150                 puts("not a NAND device\n");
 151                 return -1;
 152         }
 153
 154         *off = part->offset;
 155         *size = part->size;
 156         *idx = dev->id->num;
 157
 158         ret = set_dev(*idx);
 159         if (ret)
 160                 return ret;
 161
 162         return 0;
 163 #else
 164         puts("offset is not a number\n");
 165         return -1;
 166 #endif
 167 }
 168
 169 static int arg_off(const char *arg, int *idx, loff_t *off, loff_t *maxsize)
 170 {
 171         if (!str2off(arg, off))
 172                 return get_part(arg, idx, off, maxsize);
 173
 174         if (*off >= nand_info[*idx].size) {
 175                 puts("Offset exceeds device limit\n");
 176                 return -1;
 177         }
 178
 179         *maxsize = nand_info[*idx].size - *off;
 180         return 0;
 181 }
 182
 183 static int arg_off_size(int argc, char *const argv[], int *idx,
 184                         loff_t *off, loff_t *size)
 185 {
 186         int ret;
 187         loff_t maxsize;
 188
 189         if (argc == 0) {
 190                 *off = 0;
 191                 *size = nand_info[*idx].size;
 192                 goto print;
 193         }
 194
 195         ret = arg_off(argv[0], idx, off, &maxsize);
 196         if (ret)
 197                 return ret;
 198
 199         if (argc == 1) {
 200                 *size = maxsize;
 201                 goto print;
 202         }
 203
 204         if (!str2off(argv[1], size)) {
 205                 printf("'%s' is not a number\n", argv[1]);
 206                 return -1;
 207         }
 208
 209         if (*size > maxsize) {
 210                 puts("Size exceeds partition or device limit\n");
 211                 return -1;
 212         }
 213
 214 print:
 215         printf("device %d ", *idx);
 216         if (*size == nand_info[*idx].size)
 217                 puts("whole chip\n");
 218         else
 219                 printf("offset 0x%llx, size 0x%llx\n",
 220                        (unsigned long long)*off, (unsigned long long)*size);
 221         return 0;
 222 }
 223
 224 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
 225 static void print_status(ulong start, ulong end, ulong erasesize, int status)
 226 {
 227         printf("%08lx - %08lx: %08lx blocks %s%s%s\n",
 228                 start,
 229                 end - 1,
 230                 (end - start) / erasesize,
 231                 ((status & NAND_LOCK_STATUS_TIGHT) ?  "TIGHT " : ""),
 232                 ((status & NAND_LOCK_STATUS_LOCK) ?  "LOCK " : ""),
 233                 ((status & NAND_LOCK_STATUS_UNLOCK) ?  "UNLOCK " : ""));
 234 }
 235
 236 static void do_nand_status(nand_info_t *nand)
 237 {
 238         ulong block_start = 0;
 239         ulong off;
 240         int last_status = -1;
 241
 242         struct nand_chip *nand_chip = nand->priv;
 243         /* check the WP bit */
 244         nand_chip->cmdfunc(nand, NAND_CMD_STATUS, -1, -1);
 245         printf("device is %swrite protected\n",
 246                 (nand_chip->read_byte(nand) & 0x80 ?
 247                 "NOT " : ""));
 248
 249         for (off = 0; off < nand->size; off += nand->erasesize) {
 250                 int s = nand_get_lock_status(nand, off);
 251
 252                 /* print message only if status has changed */
 253                 if (s != last_status && off != 0) {
 254                         print_status(block_start, off, nand->erasesize,
 255                                         last_status);
 256                         block_start = off;
 257                 }
 258                 last_status = s;
 259         }
 260         /* Print the last block info */
 261         print_status(block_start, off, nand->erasesize, last_status);
 262 }
 263 #endif
 264
 265 #ifdef CONFIG_ENV_OFFSET_OOB
 266 unsigned long nand_env_oob_offset;
 267
 268 int do_nand_env_oob(cmd_tbl_t *cmdtp, int argc, char *const argv[])
 269 {
 270         int ret;
 271         uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)];
 272         nand_info_t *nand = &nand_info[0];
 273         char *cmd = argv[1];
 274
 275         if (CONFIG_SYS_MAX_NAND_DEVICE == 0 || !nand->name) {
 276                 puts("no devices available\n");
 277                 return 1;
 278         }
 279
 280         set_dev(0);
 281
 282         if (!strcmp(cmd, "get")) {
 283                 ret = get_nand_env_oob(nand, &nand_env_oob_offset);
 284                 if (ret)
 285                         return 1;
 286
 287                 printf("0x%08lx\n", nand_env_oob_offset);
 288         } else if (!strcmp(cmd, "set")) {
 289                 loff_t addr;
 290                 loff_t maxsize;
 291                 struct mtd_oob_ops ops;
 292                 int idx = 0;
 293
 294                 if (argc < 3)
 295                         goto usage;
 296
 297                 if (arg_off(argv[2], &idx, &addr, &maxsize)) {
 298                         puts("Offset or partition name expected\n");
 299                         return 1;
 300                 }
 301
 302                 if (idx != 0) {
 303                         puts("Partition not on first NAND device\n");
 304                         return 1;
 305                 }
 306
 307                 if (nand->oobavail < ENV_OFFSET_SIZE) {
 308                         printf("Insufficient available OOB bytes:\n"
 309                                "%d OOB bytes available but %d required for "
 310                                "env.oob support\n",
 311                                nand->oobavail, ENV_OFFSET_SIZE);
 312                         return 1;
 313                 }
 314
 315                 if ((addr & (nand->erasesize - 1)) != 0) {
 316                         printf("Environment offset must be block-aligned\n");
 317                         return 1;
 318                 }
 319
 320                 ops.datbuf = NULL;
 321                 ops.mode = MTD_OOB_AUTO;
 322                 ops.ooboffs = 0;
 323                 ops.ooblen = ENV_OFFSET_SIZE;
 324                 ops.oobbuf = (void *) oob_buf;
 325
 326                 oob_buf[0] = ENV_OOB_MARKER;
 327                 oob_buf[1] = addr / nand->erasesize;
 328
 329                 ret = nand->write_oob(nand, ENV_OFFSET_SIZE, &ops);
 330                 if (ret) {
 331                         printf("Error writing OOB block 0\n");
 332                         return ret;
 333                 }
 334
 335                 ret = get_nand_env_oob(nand, &nand_env_oob_offset);
 336                 if (ret) {
 337                         printf("Error reading env offset in OOB\n");
 338                         return ret;
 339                 }
 340
 341                 if (addr != nand_env_oob_offset) {
 342                         printf("Verification of env offset in OOB failed: "
 343                                "0x%08llx expected but got 0x%08lx\n",
 344                                (unsigned long long)addr, nand_env_oob_offset);
 345                         return 1;
 346                 }
 347         } else {
 348                 goto usage;
 349         }
 350
 351         return ret;
 352
 353 usage:
 354         return cmd_usage(cmdtp);
 355 }
 356
 357 #endif
 358
 359 static void nand_print_info(int idx)
 360 {
 361         nand_info_t *nand = &nand_info[idx];
 362         struct nand_chip *chip = nand->priv;
 363         printf("Device %d: ", idx);
 364         if (chip->numchips > 1)
 365                 printf("%dx ", chip->numchips);
 366         printf("%s, sector size %u KiB\n",
 367                nand->name, nand->erasesize >> 10);
 368 }
 369
 370 int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 371 {
 372         int i, ret = 0;
 373         ulong addr;
 374         loff_t off, size;
 375         char *cmd, *s;
 376         nand_info_t *nand;
 377 #ifdef CONFIG_SYS_NAND_QUIET
 378         int quiet = CONFIG_SYS_NAND_QUIET;
 379 #else
 380         int quiet = 0;
 381 #endif
 382         const char *quiet_str = getenv("quiet");
 383         int dev = nand_curr_device;
 384
 385         /* at least two arguments please */
 386         if (argc < 2)
 387                 goto usage;
 388
 389         if (quiet_str)
 390                 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
 391
 392         cmd = argv[1];
 393
 394         if (strcmp(cmd, "info") == 0) {
 395
 396                 putc('\n');
 397                 for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
 398                         if (nand_info[i].name)
 399                                 nand_print_info(i);
 400                 }
 401                 return 0;
 402         }
 403
 404         if (strcmp(cmd, "device") == 0) {
 405                 if (argc < 3) {
 406                         putc('\n');
 407                         if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE)
 408                                 puts("no devices available\n");
 409                         else
 410                                 nand_print_info(dev);
 411                         return 0;
 412                 }
 413
 414                 dev = (int)simple_strtoul(argv[2], NULL, 10);
 415                 set_dev(dev);
 416
 417                 return 0;
 418         }
 419
 420 #ifdef CONFIG_ENV_OFFSET_OOB
 421         /* this command operates only on the first nand device */
 422         if (strcmp(cmd, "env.oob") == 0)
 423                 return do_nand_env_oob(cmdtp, argc - 1, argv + 1);
 424 #endif
 425
 426         /* The following commands operate on the current device, unless
 427          * overridden by a partition specifier.  Note that if somehow the
 428          * current device is invalid, it will have to be changed to a valid
 429          * one before these commands can run, even if a partition specifier
 430          * for another device is to be used.
 431          */
 432         if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE ||
 433             !nand_info[dev].name) {
 434                 puts("\nno devices available\n");
 435                 return 1;
 436         }
 437         nand = &nand_info[dev];
 438
 439         if (strcmp(cmd, "bad") == 0) {
 440                 printf("\nDevice %d bad blocks:\n", dev);
 441                 for (off = 0; off < nand->size; off += nand->erasesize)
 442                         if (nand_block_isbad(nand, off))
 443                                 printf("  %08llx\n", (unsigned long long)off);
 444                 return 0;
 445         }
 446
 447         /*
 448          * Syntax is:
 449          *   0    1     2       3    4
 450          *   nand erase [clean] [off size]
 451          */
 452         if (strncmp(cmd, "erase", 5) == 0 || strncmp(cmd, "scrub", 5) == 0) {
 453                 nand_erase_options_t opts;
 454                 /* "clean" at index 2 means request to write cleanmarker */
 455                 int clean = argc > 2 && !strcmp("clean", argv[2]);
 456                 int o = clean ? 3 : 2;
 457                 int scrub = !strncmp(cmd, "scrub", 5);
 458                 int part = 0;
 459                 int chip = 0;
 460                 int spread = 0;
 461                 int args = 2;
 462
 463                 if (cmd[5] != 0) {
 464                         if (!strcmp(&cmd[5], ".spread")) {
 465                                 spread = 1;
 466                         } else if (!strcmp(&cmd[5], ".part")) {
 467                                 part = 1;
 468                                 args = 1;
 469                         } else if (!strcmp(&cmd[5], ".chip")) {
 470                                 chip = 1;
 471                                 args = 0;
 472                         } else {
 473                                 goto usage;
 474                         }
 475                 }
 476
 477                 /*
 478                  * Don't allow missing arguments to cause full chip/partition
 479                  * erases -- easy to do accidentally, e.g. with a misspelled
 480                  * variable name.
 481                  */
 482                 if (argc != o + args)
 483                         goto usage;
 484
 485                 printf("\nNAND %s: ", cmd);
 486                 /* skip first two or three arguments, look for offset and size */
 487                 if (arg_off_size(argc - o, argv + o, &dev, &off, &size) != 0)
 488                         return 1;
 489
 490                 nand = &nand_info[dev];
 491
 492                 memset(&opts, 0, sizeof(opts));
 493                 opts.offset = off;
 494                 opts.length = size;
 495                 opts.jffs2  = clean;
 496                 opts.quiet  = quiet;
 497                 opts.spread = spread;
 498
 499                 if (scrub) {
 500                         puts("Warning: "
 501                              "scrub option will erase all factory set "
 502                              "bad blocks!\n"
 503                              "         "
 504                              "There is no reliable way to recover them.\n"
 505                              "         "
 506                              "Use this command only for testing purposes "
 507                              "if you\n"
 508                              "         "
 509                              "are sure of what you are doing!\n"
 510                              "\nReally scrub this NAND flash? <y/N>\n");
 511
 512                         if (getc() == 'y') {
 513                                 puts("y");
 514                                 if (getc() == '\r')
 515                                         opts.scrub = 1;
 516                                 else {
 517                                         puts("scrub aborted\n");
 518                                         return -1;
 519                                 }
 520                         } else {
 521                                 puts("scrub aborted\n");
 522                                 return -1;
 523                         }
 524                 }
 525                 ret = nand_erase_opts(nand, &opts);
 526                 printf("%s\n", ret ? "ERROR" : "OK");
 527
 528                 return ret == 0 ? 0 : 1;
 529         }
 530
 531         if (strncmp(cmd, "dump", 4) == 0) {
 532                 if (argc < 3)
 533                         goto usage;
 534
 535                 s = strchr(cmd, '.');
 536                 off = (int)simple_strtoul(argv[2], NULL, 16);
 537
 538                 if (s != NULL && strcmp(s, ".oob") == 0)
 539                         ret = nand_dump(nand, off, 1);
 540                 else
 541                         ret = nand_dump(nand, off, 0);
 542
 543                 return ret == 0 ? 1 : 0;
 544
 545         }
 546
 547         if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
 548                 size_t rwsize;
 549                 int read;
 550
 551                 if (argc < 4)
 552                         goto usage;
 553
 554                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
 555
 556                 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
 557                 printf("\nNAND %s: ", read ? "read" : "write");
 558                 if (arg_off_size(argc - 3, argv + 3, &dev, &off, &size) != 0)
 559                         return 1;
 560
 561                 nand = &nand_info[dev];
 562                 rwsize = size;
 563
 564                 s = strchr(cmd, '.');
 565                 if (!s || !strcmp(s, ".jffs2") ||
 566                     !strcmp(s, ".e") || !strcmp(s, ".i")) {
 567                         if (read)
 568                                 ret = nand_read_skip_bad(nand, off, &rwsize,
 569                                                          (u_char *)addr);
 570                         else
 571                                 ret = nand_write_skip_bad(nand, off, &rwsize,
 572                                                           (u_char *)addr);
 573                 } else if (!strcmp(s, ".oob")) {
 574                         /* out-of-band data */
 575                         mtd_oob_ops_t ops = {
 576                                 .oobbuf = (u8 *)addr,
 577                                 .ooblen = rwsize,
 578                                 .mode = MTD_OOB_RAW
 579                         };
 580
 581                         if (read)
 582                                 ret = nand->read_oob(nand, off, &ops);
 583                         else
 584                                 ret = nand->write_oob(nand, off, &ops);
 585                 } else {
 586                         printf("Unknown nand command suffix '%s'.\n", s);
 587                         return 1;
 588                 }
 589
 590                 printf(" %zu bytes %s: %s\n", rwsize,
 591                        read ? "read" : "written", ret ? "ERROR" : "OK");
 592
 593                 return ret == 0 ? 0 : 1;
 594         }
 595
 596         if (strcmp(cmd, "markbad") == 0) {
 597                 argc -= 2;
 598                 argv += 2;
 599
 600                 if (argc <= 0)
 601                         goto usage;
 602
 603                 while (argc > 0) {
 604                         addr = simple_strtoul(*argv, NULL, 16);
 605
 606                         if (nand->block_markbad(nand, addr)) {
 607                                 printf("block 0x%08lx NOT marked "
 608                                         "as bad! ERROR %d\n",
 609                                         addr, ret);
 610                                 ret = 1;
 611                         } else {
 612                                 printf("block 0x%08lx successfully "
 613                                         "marked as bad\n",
 614                                         addr);
 615                         }
 616                         --argc;
 617                         ++argv;
 618                 }
 619                 return ret;
 620         }
 621
 622         if (strcmp(cmd, "biterr") == 0) {
 623                 /* todo */
 624                 return 1;
 625         }
 626
 627 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
 628         if (strcmp(cmd, "lock") == 0) {
 629                 int tight = 0;
 630                 int status = 0;
 631                 if (argc == 3) {
 632                         if (!strcmp("tight", argv[2]))
 633                                 tight = 1;
 634                         if (!strcmp("status", argv[2]))
 635                                 status = 1;
 636                 }
 637                 if (status) {
 638                         do_nand_status(nand);
 639                 } else {
 640                         if (!nand_lock(nand, tight)) {
 641                                 puts("NAND flash successfully locked\n");
 642                         } else {
 643                                 puts("Error locking NAND flash\n");
 644                                 return 1;
 645                         }
 646                 }
 647                 return 0;
 648         }
 649
 650         if (strcmp(cmd, "unlock") == 0) {
 651                 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
 652                         return 1;
 653
 654                 if (!nand_unlock(&nand_info[dev], off, size)) {
 655                         puts("NAND flash successfully unlocked\n");
 656                 } else {
 657                         puts("Error unlocking NAND flash, "
 658                              "write and erase will probably fail\n");
 659                         return 1;
 660                 }
 661                 return 0;
 662         }
 663 #endif
 664
 665 usage:
 666         return cmd_usage(cmdtp);
 667 }
 668
 669 U_BOOT_CMD(
 670         nand, CONFIG_SYS_MAXARGS, 1, do_nand,
 671         "NAND sub-system",
 672         "info - show available NAND devices\n"
 673         "nand device [dev] - show or set current device\n"
 674         "nand read - addr off|partition size\n"
 675         "nand write - addr off|partition size\n"
 676         "    read/write 'size' bytes starting at offset 'off'\n"
 677         "    to/from memory address 'addr', skipping bad blocks.\n"
 678         "nand erase[.spread] [clean] [off [size]] - erase 'size' bytes "
 679         "from offset 'off'\n"
 680         "    With '.spread', erase enough for given file size, otherwise,\n"
 681         "    'size' includes skipped bad blocks.\n"
 682         "nand erase.part [clean] partition - erase entire mtd partition'\n"
 683         "nand erase.chip [clean] - erase entire chip'\n"
 684         "nand bad - show bad blocks\n"
 685         "nand dump[.oob] off - dump page\n"
 686         "nand scrub off size | scrub.part partition | scrub.chip\n"
 687         "    really clean NAND erasing bad blocks (UNSAFE)\n"
 688         "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n"
 689         "nand biterr off - make a bit error at offset (UNSAFE)"
 690 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
 691         "\n"
 692         "nand lock [tight] [status]\n"
 693         "    bring nand to lock state or display locked pages\n"
 694         "nand unlock [offset] [size] - unlock section"
 695 #endif
 696 #ifdef CONFIG_ENV_OFFSET_OOB
 697         "\n"
 698         "nand env.oob - environment offset in OOB of block 0 of"
 699         "    first device.\n"
 700         "nand env.oob set off|partition - set enviromnent offset\n"
 701         "nand env.oob get - get environment offset"
 702 #endif
 703 );
 704
 705 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
 706                            ulong offset, ulong addr, char *cmd)
 707 {
 708         int r;
 709         char *ep, *s;
 710         size_t cnt;
 711         image_header_t *hdr;
 712 #if defined(CONFIG_FIT)
 713         const void *fit_hdr = NULL;
 714 #endif
 715
 716         s = strchr(cmd, '.');
 717         if (s != NULL &&
 718             (strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) {
 719                 printf("Unknown nand load suffix '%s'\n", s);
 720                 show_boot_progress(-53);
 721                 return 1;
 722         }
 723
 724         printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
 725
 726         cnt = nand->writesize;
 727         r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr);
 728         if (r) {
 729                 puts("** Read error\n");
 730                 show_boot_progress (-56);
 731                 return 1;
 732         }
 733         show_boot_progress (56);
 734
 735         switch (genimg_get_format ((void *)addr)) {
 736         case IMAGE_FORMAT_LEGACY:
 737                 hdr = (image_header_t *)addr;
 738
 739                 show_boot_progress (57);
 740                 image_print_contents (hdr);
 741
 742                 cnt = image_get_image_size (hdr);
 743                 break;
 744 #if defined(CONFIG_FIT)
 745         case IMAGE_FORMAT_FIT:
 746                 fit_hdr = (const void *)addr;
 747                 puts ("Fit image detected...\n");
 748
 749                 cnt = fit_get_size (fit_hdr);
 750                 break;
 751 #endif
 752         default:
 753                 show_boot_progress (-57);
 754                 puts ("** Unknown image type\n");
 755                 return 1;
 756         }
 757         show_boot_progress (57);
 758
 759         r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr);
 760         if (r) {
 761                 puts("** Read error\n");
 762                 show_boot_progress (-58);
 763                 return 1;
 764         }
 765         show_boot_progress (58);
 766
 767 #if defined(CONFIG_FIT)
 768         /* This cannot be done earlier, we need complete FIT image in RAM first */
 769         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
 770                 if (!fit_check_format (fit_hdr)) {
 771                         show_boot_progress (-150);
 772                         puts ("** Bad FIT image format\n");
 773                         return 1;
 774                 }
 775                 show_boot_progress (151);
 776                 fit_print_contents (fit_hdr);
 777         }
 778 #endif
 779
 780         /* Loading ok, update default load address */
 781
 782         load_addr = addr;
 783
 784         /* Check if we should attempt an auto-start */
 785         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
 786                 char *local_args[2];
 787                 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
 788
 789                 local_args[0] = cmd;
 790                 local_args[1] = NULL;
 791
 792                 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
 793
 794                 do_bootm(cmdtp, 0, 1, local_args);
 795                 return 1;
 796         }
 797         return 0;
 798 }
 799
 800 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 801 {
 802         char *boot_device = NULL;
 803         int idx;
 804         ulong addr, offset = 0;
 805 #if defined(CONFIG_CMD_MTDPARTS)
 806         struct mtd_device *dev;
 807         struct part_info *part;
 808         u8 pnum;
 809
 810         if (argc >= 2) {
 811                 char *p = (argc == 2) ? argv[1] : argv[2];
 812                 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
 813                     (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
 814                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 815                                 puts("Not a NAND device\n");
 816                                 return 1;
 817                         }
 818                         if (argc > 3)
 819                                 goto usage;
 820                         if (argc == 3)
 821                                 addr = simple_strtoul(argv[1], NULL, 16);
 822                         else
 823                                 addr = CONFIG_SYS_LOAD_ADDR;
 824                         return nand_load_image(cmdtp, &nand_info[dev->id->num],
 825                                                part->offset, addr, argv[0]);
 826                 }
 827         }
 828 #endif
 829
 830         show_boot_progress(52);
 831         switch (argc) {
 832         case 1:
 833                 addr = CONFIG_SYS_LOAD_ADDR;
 834                 boot_device = getenv("bootdevice");
 835                 break;
 836         case 2:
 837                 addr = simple_strtoul(argv[1], NULL, 16);
 838                 boot_device = getenv("bootdevice");
 839                 break;
 840         case 3:
 841                 addr = simple_strtoul(argv[1], NULL, 16);
 842                 boot_device = argv[2];
 843                 break;
 844         case 4:
 845                 addr = simple_strtoul(argv[1], NULL, 16);
 846                 boot_device = argv[2];
 847                 offset = simple_strtoul(argv[3], NULL, 16);
 848                 break;
 849         default:
 850 #if defined(CONFIG_CMD_MTDPARTS)
 851 usage:
 852 #endif
 853                 show_boot_progress(-53);
 854                 return cmd_usage(cmdtp);
 855         }
 856
 857         show_boot_progress(53);
 858         if (!boot_device) {
 859                 puts("\n** No boot device **\n");
 860                 show_boot_progress(-54);
 861                 return 1;
 862         }
 863         show_boot_progress(54);
 864
 865         idx = simple_strtoul(boot_device, NULL, 16);
 866
 867         if (idx < 0 || idx >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[idx].name) {
 868                 printf("\n** Device %d not available\n", idx);
 869                 show_boot_progress(-55);
 870                 return 1;
 871         }
 872         show_boot_progress(55);
 873
 874         return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
 875 }
 876
 877 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
 878         "boot from NAND device",
 879         "[partition] | [[[loadAddr] dev] offset]"
 880 );