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  * Added 16-bit nand support
   8  * (C) 2004 Texas Instruments
   9  */
  10
  11 #include <common.h>
  12
  13
  14 #ifndef CFG_NAND_LEGACY
  15 /*
  16  *
  17  * New NAND support
  18  *
  19  */
  20 #include <common.h>
  21
  22 #if defined(CONFIG_CMD_NAND)
  23
  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_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
  32
  33 /* parition 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_oob(nand_info_t *nand, ulong off)
  41 {
  42         return 0;
  43 }
  44
  45 static int nand_dump(nand_info_t *nand, ulong off)
  46 {
  47         int i;
  48         u_char *buf, *p;
  49
  50         buf = malloc(nand->oobblock + nand->oobsize);
  51         if (!buf) {
  52                 puts("No memory for page buffer\n");
  53                 return 1;
  54         }
  55         off &= ~(nand->oobblock - 1);
  56         i = nand_read_raw(nand, buf, off, nand->oobblock, nand->oobsize);
  57         if (i < 0) {
  58                 printf("Error (%d) reading page %08lx\n", i, off);
  59                 free(buf);
  60                 return 1;
  61         }
  62         printf("Page %08lx dump:\n", off);
  63         i = nand->oobblock >> 4; p = buf;
  64         while (i--) {
  65                 printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x"
  66                         "  %02x %02x %02x %02x %02x %02x %02x %02x\n",
  67                         p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
  68                         p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
  69                 p += 16;
  70         }
  71         puts("OOB:\n");
  72         i = nand->oobsize >> 3;
  73         while (i--) {
  74                 printf( "\t%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;
  77         }
  78         free(buf);
  79
  80         return 0;
  81 }
  82
  83 /* ------------------------------------------------------------------------- */
  84
  85 static inline int str2long(char *p, ulong *num)
  86 {
  87         char *endptr;
  88
  89         *num = simple_strtoul(p, &endptr, 16);
  90         return (*p != '\0' && *endptr == '\0') ? 1 : 0;
  91 }
  92
  93 static int
  94 arg_off_size(int argc, char *argv[], nand_info_t *nand, ulong *off, size_t *size)
  95 {
  96         int idx = nand_curr_device;
  97 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
  98         struct mtd_device *dev;
  99         struct part_info *part;
 100         u8 pnum;
 101
 102         if (argc >= 1 && !(str2long(argv[0], off))) {
 103                 if ((mtdparts_init() == 0) &&
 104                     (find_dev_and_part(argv[0], &dev, &pnum, &part) == 0)) {
 105                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 106                                 puts("not a NAND device\n");
 107                                 return -1;
 108                         }
 109                         *off = part->offset;
 110                         if (argc >= 2) {
 111                                 if (!(str2long(argv[1], (ulong *)size))) {
 112                                         printf("'%s' is not a number\n", argv[1]);
 113                                         return -1;
 114                                 }
 115                                 if (*size > part->size)
 116                                         *size = part->size;
 117                         } else {
 118                                 *size = part->size;
 119                         }
 120                         idx = dev->id->num;
 121                         *nand = nand_info[idx];
 122                         goto out;
 123                 }
 124         }
 125 #endif
 126
 127         if (argc >= 1) {
 128                 if (!(str2long(argv[0], off))) {
 129                         printf("'%s' is not a number\n", argv[0]);
 130                         return -1;
 131                 }
 132         } else {
 133                 *off = 0;
 134         }
 135
 136         if (argc >= 2) {
 137                 if (!(str2long(argv[1], (ulong *)size))) {
 138                         printf("'%s' is not a number\n", argv[1]);
 139                         return -1;
 140                 }
 141         } else {
 142                 *size = nand->size - *off;
 143         }
 144
 145 #if  defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 146 out:
 147 #endif
 148         printf("device %d ", idx);
 149         if (*size == nand->size)
 150                 puts("whole chip\n");
 151         else
 152                 printf("offset 0x%lx, size 0x%x\n", *off, *size);
 153         return 0;
 154 }
 155
 156 int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 157 {
 158         int i, dev, ret;
 159         ulong addr, off;
 160         size_t size;
 161         char *cmd, *s;
 162         nand_info_t *nand;
 163 #ifdef CFG_NAND_QUIET
 164         int quiet = CFG_NAND_QUIET;
 165 #else
 166         int quiet = 0;
 167 #endif
 168         const char *quiet_str = getenv("quiet");
 169
 170         /* at least two arguments please */
 171         if (argc < 2)
 172                 goto usage;
 173
 174         if (quiet_str)
 175                 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
 176
 177         cmd = argv[1];
 178
 179         if (strcmp(cmd, "info") == 0) {
 180
 181                 putc('\n');
 182                 for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
 183                         if (nand_info[i].name)
 184                                 printf("Device %d: %s, sector size %u KiB\n",
 185                                         i, nand_info[i].name,
 186                                         nand_info[i].erasesize >> 10);
 187                 }
 188                 return 0;
 189         }
 190
 191         if (strcmp(cmd, "device") == 0) {
 192
 193                 if (argc < 3) {
 194                         if ((nand_curr_device < 0) ||
 195                             (nand_curr_device >= CFG_MAX_NAND_DEVICE))
 196                                 puts("\nno devices available\n");
 197                         else
 198                                 printf("\nDevice %d: %s\n", nand_curr_device,
 199                                         nand_info[nand_curr_device].name);
 200                         return 0;
 201                 }
 202                 dev = (int)simple_strtoul(argv[2], NULL, 10);
 203                 if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) {
 204                         puts("No such device\n");
 205                         return 1;
 206                 }
 207                 printf("Device %d: %s", dev, nand_info[dev].name);
 208                 puts("... is now current device\n");
 209                 nand_curr_device = dev;
 210
 211 #ifdef CFG_NAND_SELECT_DEVICE
 212                 /*
 213                  * Select the chip in the board/cpu specific driver
 214                  */
 215                 board_nand_select_device(nand_info[dev].priv, dev);
 216 #endif
 217
 218                 return 0;
 219         }
 220
 221         if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 &&
 222             strncmp(cmd, "dump", 4) != 0 &&
 223             strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 &&
 224             strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 &&
 225             strcmp(cmd, "biterr") != 0 &&
 226             strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 )
 227                 goto usage;
 228
 229         /* the following commands operate on the current device */
 230         if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE ||
 231             !nand_info[nand_curr_device].name) {
 232                 puts("\nno devices available\n");
 233                 return 1;
 234         }
 235         nand = &nand_info[nand_curr_device];
 236
 237         if (strcmp(cmd, "bad") == 0) {
 238                 printf("\nDevice %d bad blocks:\n", nand_curr_device);
 239                 for (off = 0; off < nand->size; off += nand->erasesize)
 240                         if (nand_block_isbad(nand, off))
 241                                 printf("  %08lx\n", off);
 242                 return 0;
 243         }
 244
 245         /*
 246          * Syntax is:
 247          *   0    1     2       3    4
 248          *   nand erase [clean] [off size]
 249          */
 250         if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) {
 251                 nand_erase_options_t opts;
 252                 /* "clean" at index 2 means request to write cleanmarker */
 253                 int clean = argc > 2 && !strcmp("clean", argv[2]);
 254                 int o = clean ? 3 : 2;
 255                 int scrub = !strcmp(cmd, "scrub");
 256
 257                 printf("\nNAND %s: ", scrub ? "scrub" : "erase");
 258                 /* skip first two or three arguments, look for offset and size */
 259                 if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
 260                         return 1;
 261
 262                 memset(&opts, 0, sizeof(opts));
 263                 opts.offset = off;
 264                 opts.length = size;
 265                 opts.jffs2  = clean;
 266                 opts.quiet  = quiet;
 267
 268                 if (scrub) {
 269                         puts("Warning: "
 270                              "scrub option will erase all factory set "
 271                              "bad blocks!\n"
 272                              "         "
 273                              "There is no reliable way to recover them.\n"
 274                              "         "
 275                              "Use this command only for testing purposes "
 276                              "if you\n"
 277                              "         "
 278                              "are sure of what you are doing!\n"
 279                              "\nReally scrub this NAND flash? <y/N>\n");
 280
 281                         if (getc() == 'y' && getc() == '\r') {
 282                                 opts.scrub = 1;
 283                         } else {
 284                                 puts("scrub aborted\n");
 285                                 return -1;
 286                         }
 287                 }
 288                 ret = nand_erase_opts(nand, &opts);
 289                 printf("%s\n", ret ? "ERROR" : "OK");
 290
 291                 return ret == 0 ? 0 : 1;
 292         }
 293
 294         if (strncmp(cmd, "dump", 4) == 0) {
 295                 if (argc < 3)
 296                         goto usage;
 297
 298                 s = strchr(cmd, '.');
 299                 off = (int)simple_strtoul(argv[2], NULL, 16);
 300
 301                 if (s != NULL && strcmp(s, ".oob") == 0)
 302                         ret = nand_dump_oob(nand, off);
 303                 else
 304                         ret = nand_dump(nand, off);
 305
 306                 return ret == 0 ? 1 : 0;
 307
 308         }
 309
 310         /* read write */
 311         if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
 312                 int read;
 313
 314                 if (argc < 4)
 315                         goto usage;
 316
 317                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
 318
 319                 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
 320                 printf("\nNAND %s: ", read ? "read" : "write");
 321                 if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
 322                         return 1;
 323
 324                 s = strchr(cmd, '.');
 325                 if (s != NULL &&
 326                     (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) {
 327                         if (read) {
 328                                 /* read */
 329                                 nand_read_options_t opts;
 330                                 memset(&opts, 0, sizeof(opts));
 331                                 opts.buffer     = (u_char*) addr;
 332                                 opts.length     = size;
 333                                 opts.offset     = off;
 334                                 opts.quiet      = quiet;
 335                                 ret = nand_read_opts(nand, &opts);
 336                         } else {
 337                                 /* write */
 338                                 nand_write_options_t opts;
 339                                 memset(&opts, 0, sizeof(opts));
 340                                 opts.buffer     = (u_char*) addr;
 341                                 opts.length     = size;
 342                                 opts.offset     = off;
 343                                 /* opts.forcejffs2 = 1; */
 344                                 opts.pad        = 1;
 345                                 opts.blockalign = 1;
 346                                 opts.quiet      = quiet;
 347                                 ret = nand_write_opts(nand, &opts);
 348                         }
 349                 } else if (s != NULL && !strcmp(s, ".oob")) {
 350                         /* read out-of-band data */
 351                         if (read)
 352                                 ret = nand->read_oob(nand, off, size, &size,
 353                                                      (u_char *) addr);
 354                         else
 355                                 ret = nand->write_oob(nand, off, size, &size,
 356                                                       (u_char *) addr);
 357                 } else {
 358                         if (read)
 359                                 ret = nand_read(nand, off, &size, (u_char *)addr);
 360                         else
 361                                 ret = nand_write(nand, off, &size, (u_char *)addr);
 362                 }
 363
 364                 printf(" %d bytes %s: %s\n", size,
 365                        read ? "read" : "written", ret ? "ERROR" : "OK");
 366
 367                 return ret == 0 ? 0 : 1;
 368         }
 369
 370         if (strcmp(cmd, "markbad") == 0) {
 371                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
 372
 373                 int ret = nand->block_markbad(nand, addr);
 374                 if (ret == 0) {
 375                         printf("block 0x%08lx successfully marked as bad\n",
 376                                (ulong) addr);
 377                         return 0;
 378                 } else {
 379                         printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
 380                                (ulong) addr, ret);
 381                 }
 382                 return 1;
 383         }
 384         if (strcmp(cmd, "biterr") == 0) {
 385                 /* todo */
 386                 return 1;
 387         }
 388
 389         if (strcmp(cmd, "lock") == 0) {
 390                 int tight  = 0;
 391                 int status = 0;
 392                 if (argc == 3) {
 393                         if (!strcmp("tight", argv[2]))
 394                                 tight = 1;
 395                         if (!strcmp("status", argv[2]))
 396                                 status = 1;
 397                 }
 398
 399                 if (status) {
 400                         ulong block_start = 0;
 401                         ulong off;
 402                         int last_status = -1;
 403
 404                         struct nand_chip *nand_chip = nand->priv;
 405                         /* check the WP bit */
 406                         nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1);
 407                         printf("device is %swrite protected\n",
 408                                (nand_chip->read_byte(nand) & 0x80 ?
 409                                 "NOT " : "" ) );
 410
 411                         for (off = 0; off < nand->size; off += nand->oobblock) {
 412                                 int s = nand_get_lock_status(nand, off);
 413
 414                                 /* print message only if status has changed
 415                                  * or at end of chip
 416                                  */
 417                                 if (off == nand->size - nand->oobblock
 418                                     || (s != last_status && off != 0))  {
 419
 420                                         printf("%08lx - %08lx: %8lu pages %s%s%s\n",
 421                                                block_start,
 422                                                off-1,
 423                                                (off-block_start)/nand->oobblock,
 424                                                ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
 425                                                ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
 426                                                ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
 427                                 }
 428
 429                                 last_status = s;
 430                        }
 431                 } else {
 432                         if (!nand_lock(nand, tight)) {
 433                                 puts("NAND flash successfully locked\n");
 434                         } else {
 435                                 puts("Error locking NAND flash\n");
 436                                 return 1;
 437                         }
 438                 }
 439                 return 0;
 440         }
 441
 442         if (strcmp(cmd, "unlock") == 0) {
 443                 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
 444                         return 1;
 445
 446                 if (!nand_unlock(nand, off, size)) {
 447                         puts("NAND flash successfully unlocked\n");
 448                 } else {
 449                         puts("Error unlocking NAND flash, "
 450                              "write and erase will probably fail\n");
 451                         return 1;
 452                 }
 453                 return 0;
 454         }
 455
 456 usage:
 457         printf("Usage:\n%s\n", cmdtp->usage);
 458         return 1;
 459 }
 460
 461 U_BOOT_CMD(nand, 5, 1, do_nand,
 462         "nand    - NAND sub-system\n",
 463         "info                  - show available NAND devices\n"
 464         "nand device [dev]     - show or set current device\n"
 465         "nand read[.jffs2]     - addr off|partition size\n"
 466         "nand write[.jffs2]    - addr off|partition size - read/write `size' bytes starting\n"
 467         "    at offset `off' to/from memory address `addr'\n"
 468         "nand erase [clean] [off size] - erase `size' bytes from\n"
 469         "    offset `off' (entire device if not specified)\n"
 470         "nand bad - show bad blocks\n"
 471         "nand dump[.oob] off - dump page\n"
 472         "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
 473         "nand markbad off - mark bad block at offset (UNSAFE)\n"
 474         "nand biterr off - make a bit error at offset (UNSAFE)\n"
 475         "nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
 476         "nand unlock [offset] [size] - unlock section\n");
 477
 478 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
 479                            ulong offset, ulong addr, char *cmd)
 480 {
 481         int r;
 482         char *ep, *s;
 483         size_t cnt;
 484         image_header_t *hdr;
 485         int jffs2 = 0;
 486 #if defined(CONFIG_FIT)
 487         const void *fit_hdr = NULL;
 488 #endif
 489
 490         s = strchr(cmd, '.');
 491         if (s != NULL &&
 492             (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
 493                 jffs2 = 1;
 494
 495         printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
 496
 497         cnt = nand->oobblock;
 498         if (jffs2) {
 499                 nand_read_options_t opts;
 500                 memset(&opts, 0, sizeof(opts));
 501                 opts.buffer     = (u_char*) addr;
 502                 opts.length     = cnt;
 503                 opts.offset     = offset;
 504                 opts.quiet      = 1;
 505                 r = nand_read_opts(nand, &opts);
 506         } else {
 507                 r = nand_read(nand, offset, &cnt, (u_char *) addr);
 508         }
 509
 510         if (r) {
 511                 puts("** Read error\n");
 512                 show_boot_progress (-56);
 513                 return 1;
 514         }
 515         show_boot_progress (56);
 516
 517         switch (genimg_get_format ((void *)addr)) {
 518         case IMAGE_FORMAT_LEGACY:
 519                 hdr = (image_header_t *)addr;
 520
 521                 show_boot_progress (57);
 522                 image_print_contents (hdr);
 523
 524                 cnt = image_get_image_size (hdr);
 525                 break;
 526 #if defined(CONFIG_FIT)
 527         case IMAGE_FORMAT_FIT:
 528                 fit_hdr = (const void *)addr;
 529                 puts ("Fit image detected...\n");
 530
 531                 cnt = fit_get_size (fit_hdr);
 532                 break;
 533 #endif
 534         default:
 535                 show_boot_progress (-57);
 536                 puts ("** Unknown image type\n");
 537                 return 1;
 538         }
 539
 540         if (jffs2) {
 541                 nand_read_options_t opts;
 542                 memset(&opts, 0, sizeof(opts));
 543                 opts.buffer     = (u_char*) addr;
 544                 opts.length     = cnt;
 545                 opts.offset     = offset;
 546                 opts.quiet      = 1;
 547                 r = nand_read_opts(nand, &opts);
 548         } else {
 549                 r = nand_read(nand, offset, &cnt, (u_char *) addr);
 550         }
 551
 552         if (r) {
 553                 puts("** Read error\n");
 554                 show_boot_progress (-58);
 555                 return 1;
 556         }
 557         show_boot_progress (58);
 558
 559 #if defined(CONFIG_FIT)
 560         /* This cannot be done earlier, we need complete FIT image in RAM first */
 561         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
 562                 if (!fit_check_format (fit_hdr)) {
 563                         show_boot_progress (-150);
 564                         puts ("** Bad FIT image format\n");
 565                         return 1;
 566                 }
 567                 show_boot_progress (151);
 568                 fit_print_contents (fit_hdr);
 569         }
 570 #endif
 571
 572         /* Loading ok, update default load address */
 573
 574         load_addr = addr;
 575
 576         /* Check if we should attempt an auto-start */
 577         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
 578                 char *local_args[2];
 579                 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
 580
 581                 local_args[0] = cmd;
 582                 local_args[1] = NULL;
 583
 584                 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
 585
 586                 do_bootm(cmdtp, 0, 1, local_args);
 587                 return 1;
 588         }
 589         return 0;
 590 }
 591
 592 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 593 {
 594         char *boot_device = NULL;
 595         int idx;
 596         ulong addr, offset = 0;
 597 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 598         struct mtd_device *dev;
 599         struct part_info *part;
 600         u8 pnum;
 601
 602         if (argc >= 2) {
 603                 char *p = (argc == 2) ? argv[1] : argv[2];
 604                 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
 605                     (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
 606                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 607                                 puts("Not a NAND device\n");
 608                                 return 1;
 609                         }
 610                         if (argc > 3)
 611                                 goto usage;
 612                         if (argc == 3)
 613                                 addr = simple_strtoul(argv[1], NULL, 16);
 614                         else
 615                                 addr = CFG_LOAD_ADDR;
 616                         return nand_load_image(cmdtp, &nand_info[dev->id->num],
 617                                                part->offset, addr, argv[0]);
 618                 }
 619         }
 620 #endif
 621
 622         show_boot_progress(52);
 623         switch (argc) {
 624         case 1:
 625                 addr = CFG_LOAD_ADDR;
 626                 boot_device = getenv("bootdevice");
 627                 break;
 628         case 2:
 629                 addr = simple_strtoul(argv[1], NULL, 16);
 630                 boot_device = getenv("bootdevice");
 631                 break;
 632         case 3:
 633                 addr = simple_strtoul(argv[1], NULL, 16);
 634                 boot_device = argv[2];
 635                 break;
 636         case 4:
 637                 addr = simple_strtoul(argv[1], NULL, 16);
 638                 boot_device = argv[2];
 639                 offset = simple_strtoul(argv[3], NULL, 16);
 640                 break;
 641         default:
 642 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 643 usage:
 644 #endif
 645                 printf("Usage:\n%s\n", cmdtp->usage);
 646                 show_boot_progress(-53);
 647                 return 1;
 648         }
 649
 650         show_boot_progress(53);
 651         if (!boot_device) {
 652                 puts("\n** No boot device **\n");
 653                 show_boot_progress(-54);
 654                 return 1;
 655         }
 656         show_boot_progress(54);
 657
 658         idx = simple_strtoul(boot_device, NULL, 16);
 659
 660         if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
 661                 printf("\n** Device %d not available\n", idx);
 662                 show_boot_progress(-55);
 663                 return 1;
 664         }
 665         show_boot_progress(55);
 666
 667         return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
 668 }
 669
 670 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
 671         "nboot   - boot from NAND device\n",
 672         "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
 673
 674 #endif
 675
 676 #else /* CFG_NAND_LEGACY */
 677 /*
 678  *
 679  * Legacy NAND support - to be phased out
 680  *
 681  */
 682 #include <command.h>
 683 #include <malloc.h>
 684 #include <asm/io.h>
 685 #include <watchdog.h>
 686
 687 #ifdef CONFIG_show_boot_progress
 688 # include <status_led.h>
 689 # define show_boot_progress(arg)        show_boot_progress(arg)
 690 #else
 691 # define show_boot_progress(arg)
 692 #endif
 693
 694 #if defined(CONFIG_CMD_NAND)
 695 #include <linux/mtd/nand_legacy.h>
 696 #if 0
 697 #include <linux/mtd/nand_ids.h>
 698 #include <jffs2/jffs2.h>
 699 #endif
 700
 701 #ifdef CONFIG_OMAP1510
 702 void archflashwp(void *archdata, int wp);
 703 #endif
 704
 705 #define ROUND_DOWN(value,boundary)      ((value) & (~((boundary)-1)))
 706
 707 #undef  NAND_DEBUG
 708 #undef  PSYCHO_DEBUG
 709
 710 /* ****************** WARNING *********************
 711  * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
 712  * erase (or at least attempt to erase) blocks that are marked
 713  * bad. This can be very handy if you are _sure_ that the block
 714  * is OK, say because you marked a good block bad to test bad
 715  * block handling and you are done testing, or if you have
 716  * accidentally marked blocks bad.
 717  *
 718  * Erasing factory marked bad blocks is a _bad_ idea. If the
 719  * erase succeeds there is no reliable way to find them again,
 720  * and attempting to program or erase bad blocks can affect
 721  * the data in _other_ (good) blocks.
 722  */
 723 #define  ALLOW_ERASE_BAD_DEBUG 0
 724
 725 #define CONFIG_MTD_NAND_ECC  /* enable ECC */
 726 #define CONFIG_MTD_NAND_ECC_JFFS2
 727
 728 /* bits for nand_legacy_rw() `cmd'; or together as needed */
 729 #define NANDRW_READ     0x01
 730 #define NANDRW_WRITE    0x00
 731 #define NANDRW_JFFS2    0x02
 732 #define NANDRW_JFFS2_SKIP       0x04
 733
 734 /*
 735  * Imports from nand_legacy.c
 736  */
 737 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
 738 extern int curr_device;
 739 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
 740                             size_t len, int clean);
 741 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
 742                          size_t len, size_t *retlen, u_char *buf);
 743 extern void nand_print(struct nand_chip *nand);
 744 extern void nand_print_bad(struct nand_chip *nand);
 745 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
 746                                size_t len, size_t *retlen, u_char *buf);
 747 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
 748                                 size_t len, size_t *retlen, const u_char *buf);
 749
 750
 751 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 752 {
 753         int rcode = 0;
 754
 755         switch (argc) {
 756         case 0:
 757         case 1:
 758                 printf ("Usage:\n%s\n", cmdtp->usage);
 759                 return 1;
 760         case 2:
 761                 if (strcmp (argv[1], "info") == 0) {
 762                         int i;
 763
 764                         putc ('\n');
 765
 766                         for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
 767                                 if (nand_dev_desc[i].ChipID ==
 768                                     NAND_ChipID_UNKNOWN)
 769                                         continue;       /* list only known devices */
 770                                 printf ("Device %d: ", i);
 771                                 nand_print (&nand_dev_desc[i]);
 772                         }
 773                         return 0;
 774
 775                 } else if (strcmp (argv[1], "device") == 0) {
 776                         if ((curr_device < 0)
 777                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 778                                 puts ("\nno devices available\n");
 779                                 return 1;
 780                         }
 781                         printf ("\nDevice %d: ", curr_device);
 782                         nand_print (&nand_dev_desc[curr_device]);
 783                         return 0;
 784
 785                 } else if (strcmp (argv[1], "bad") == 0) {
 786                         if ((curr_device < 0)
 787                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 788                                 puts ("\nno devices available\n");
 789                                 return 1;
 790                         }
 791                         printf ("\nDevice %d bad blocks:\n", curr_device);
 792                         nand_print_bad (&nand_dev_desc[curr_device]);
 793                         return 0;
 794
 795                 }
 796                 printf ("Usage:\n%s\n", cmdtp->usage);
 797                 return 1;
 798         case 3:
 799                 if (strcmp (argv[1], "device") == 0) {
 800                         int dev = (int) simple_strtoul (argv[2], NULL, 10);
 801
 802                         printf ("\nDevice %d: ", dev);
 803                         if (dev >= CFG_MAX_NAND_DEVICE) {
 804                                 puts ("unknown device\n");
 805                                 return 1;
 806                         }
 807                         nand_print (&nand_dev_desc[dev]);
 808                         /*nand_print (dev); */
 809
 810                         if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
 811                                 return 1;
 812                         }
 813
 814                         curr_device = dev;
 815
 816                         puts ("... is now current device\n");
 817
 818                         return 0;
 819                 } else if (strcmp (argv[1], "erase") == 0
 820                            && strcmp (argv[2], "clean") == 0) {
 821                         struct nand_chip *nand = &nand_dev_desc[curr_device];
 822                         ulong off = 0;
 823                         ulong size = nand->totlen;
 824                         int ret;
 825
 826                         printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
 827
 828                         ret = nand_legacy_erase (nand, off, size, 1);
 829
 830                         printf ("%s\n", ret ? "ERROR" : "OK");
 831
 832                         return ret;
 833                 }
 834
 835                 printf ("Usage:\n%s\n", cmdtp->usage);
 836                 return 1;
 837         default:
 838                 /* at least 4 args */
 839
 840                 if (strncmp (argv[1], "read", 4) == 0 ||
 841                     strncmp (argv[1], "write", 5) == 0) {
 842                         ulong   addr = simple_strtoul (argv[2], NULL, 16);
 843                         off_t   off  = simple_strtoul (argv[3], NULL, 16);
 844                         size_t  size = simple_strtoul (argv[4], NULL, 16);
 845                         int     cmd = (strncmp (argv[1], "read", 4) == 0) ?
 846                                         NANDRW_READ : NANDRW_WRITE;
 847                         size_t total;
 848                         int ret;
 849                         char *cmdtail = strchr (argv[1], '.');
 850
 851                         if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
 852                                 /* read out-of-band data */
 853                                 if (cmd & NANDRW_READ) {
 854                                         ret = nand_read_oob (nand_dev_desc + curr_device,
 855                                                              off, size, &total,
 856                                                              (u_char *) addr);
 857                                 } else {
 858                                         ret = nand_write_oob (nand_dev_desc + curr_device,
 859                                                               off, size, &total,
 860                                                               (u_char *) addr);
 861                                 }
 862                                 return ret;
 863                         } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
 864                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 865                         else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
 866                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 867                                 if (cmd & NANDRW_READ)
 868                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 869                         }
 870 #ifdef SXNI855T
 871                         /* need ".e" same as ".j" for compatibility with older units */
 872                         else if (cmdtail && !strcmp (cmdtail, ".e"))
 873                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 874 #endif
 875 #ifdef CFG_NAND_SKIP_BAD_DOT_I
 876                         /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
 877                         /* ".i" for image -> read skips bad block (no 0xff) */
 878                         else if (cmdtail && !strcmp (cmdtail, ".i")) {
 879                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 880                                 if (cmd & NANDRW_READ)
 881                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 882                         }
 883 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
 884                         else if (cmdtail) {
 885                                 printf ("Usage:\n%s\n", cmdtp->usage);
 886                                 return 1;
 887                         }
 888
 889                         printf ("\nNAND %s: device %d offset %ld, size %lu ...\n",
 890                                 (cmd & NANDRW_READ) ? "read" : "write",
 891                                 curr_device, off, (ulong)size);
 892
 893                         ret = nand_legacy_rw (nand_dev_desc + curr_device,
 894                                               cmd, off, size,
 895                                               &total,
 896                                               (u_char *) addr);
 897
 898                         printf (" %d bytes %s: %s\n", total,
 899                                 (cmd & NANDRW_READ) ? "read" : "written",
 900                                 ret ? "ERROR" : "OK");
 901
 902                         return ret;
 903                 } else if (strcmp (argv[1], "erase") == 0 &&
 904                            (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
 905                         int clean = argc == 5;
 906                         ulong off =
 907                                 simple_strtoul (argv[2 + clean], NULL, 16);
 908                         ulong size =
 909                                 simple_strtoul (argv[3 + clean], NULL, 16);
 910                         int ret;
 911
 912                         printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
 913                                 curr_device, off, size);
 914
 915                         ret = nand_legacy_erase (nand_dev_desc + curr_device,
 916                                                  off, size, clean);
 917
 918                         printf ("%s\n", ret ? "ERROR" : "OK");
 919
 920                         return ret;
 921                 } else {
 922                         printf ("Usage:\n%s\n", cmdtp->usage);
 923                         rcode = 1;
 924                 }
 925
 926                 return rcode;
 927         }
 928 }
 929
 930 U_BOOT_CMD(
 931         nand,   5,      1,      do_nand,
 932         "nand    - legacy NAND sub-system\n",
 933         "info  - show available NAND devices\n"
 934         "nand device [dev] - show or set current device\n"
 935         "nand read[.jffs2[s]]  addr off size\n"
 936         "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
 937         "    at offset `off' to/from memory address `addr'\n"
 938         "nand erase [clean] [off size] - erase `size' bytes from\n"
 939         "    offset `off' (entire device if not specified)\n"
 940         "nand bad - show bad blocks\n"
 941         "nand read.oob addr off size - read out-of-band data\n"
 942         "nand write.oob addr off size - read out-of-band data\n"
 943 );
 944
 945 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 946 {
 947         char *boot_device = NULL;
 948         char *ep;
 949         int dev;
 950         ulong cnt;
 951         ulong addr;
 952         ulong offset = 0;
 953         image_header_t *hdr;
 954         int rcode = 0;
 955 #if defined(CONFIG_FIT)
 956         const void *fit_hdr = NULL;
 957 #endif
 958
 959         show_boot_progress (52);
 960         switch (argc) {
 961         case 1:
 962                 addr = CFG_LOAD_ADDR;
 963                 boot_device = getenv ("bootdevice");
 964                 break;
 965         case 2:
 966                 addr = simple_strtoul(argv[1], NULL, 16);
 967                 boot_device = getenv ("bootdevice");
 968                 break;
 969         case 3:
 970                 addr = simple_strtoul(argv[1], NULL, 16);
 971                 boot_device = argv[2];
 972                 break;
 973         case 4:
 974                 addr = simple_strtoul(argv[1], NULL, 16);
 975                 boot_device = argv[2];
 976                 offset = simple_strtoul(argv[3], NULL, 16);
 977                 break;
 978         default:
 979                 printf ("Usage:\n%s\n", cmdtp->usage);
 980                 show_boot_progress (-53);
 981                 return 1;
 982         }
 983
 984         show_boot_progress (53);
 985         if (!boot_device) {
 986                 puts ("\n** No boot device **\n");
 987                 show_boot_progress (-54);
 988                 return 1;
 989         }
 990         show_boot_progress (54);
 991
 992         dev = simple_strtoul(boot_device, &ep, 16);
 993
 994         if ((dev >= CFG_MAX_NAND_DEVICE) ||
 995             (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
 996                 printf ("\n** Device %d not available\n", dev);
 997                 show_boot_progress (-55);
 998                 return 1;
 999         }
1000         show_boot_progress (55);
1001
1002         printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1003                 dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
1004                 offset);
1005
1006         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
1007                         SECTORSIZE, NULL, (u_char *)addr)) {
1008                 printf ("** Read error on %d\n", dev);
1009                 show_boot_progress (-56);
1010                 return 1;
1011         }
1012         show_boot_progress (56);
1013
1014         switch (genimg_get_format ((void *)addr)) {
1015         case IMAGE_FORMAT_LEGACY:
1016                 hdr = (image_header_t *)addr;
1017                 image_print_contents (hdr);
1018
1019                 cnt = image_get_image_size (hdr);
1020                 cnt -= SECTORSIZE;
1021                 break;
1022 #if defined(CONFIG_FIT)
1023         case IMAGE_FORMAT_FIT:
1024                 fit_hdr = (const void *)addr;
1025                 puts ("Fit image detected...\n");
1026
1027                 cnt = fit_get_size (fit_hdr);
1028                 break;
1029 #endif
1030         default:
1031                 show_boot_progress (-57);
1032                 puts ("** Unknown image type\n");
1033                 return 1;
1034         }
1035         show_boot_progress (57);
1036
1037         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
1038                         offset + SECTORSIZE, cnt, NULL,
1039                         (u_char *)(addr+SECTORSIZE))) {
1040                 printf ("** Read error on %d\n", dev);
1041                 show_boot_progress (-58);
1042                 return 1;
1043         }
1044         show_boot_progress (58);
1045
1046 #if defined(CONFIG_FIT)
1047         /* This cannot be done earlier, we need complete FIT image in RAM first */
1048         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
1049                 if (!fit_check_format (fit_hdr)) {
1050                         show_boot_progress (-150);
1051                         puts ("** Bad FIT image format\n");
1052                         return 1;
1053                 }
1054                 show_boot_progress (151);
1055                 fit_print_contents (fit_hdr);
1056         }
1057 #endif
1058
1059         /* Loading ok, update default load address */
1060
1061         load_addr = addr;
1062
1063         /* Check if we should attempt an auto-start */
1064         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1065                 char *local_args[2];
1066                 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1067
1068                 local_args[0] = argv[0];
1069                 local_args[1] = NULL;
1070
1071                 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1072
1073                 do_bootm (cmdtp, 0, 1, local_args);
1074                 rcode = 1;
1075         }
1076         return rcode;
1077 }
1078
1079 U_BOOT_CMD(
1080         nboot,  4,      1,      do_nandboot,
1081         "nboot   - boot from NAND device\n",
1082         "loadAddr dev\n"
1083 );
1084
1085 #endif
1086
1087 #endif /* CFG_NAND_LEGACY */