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