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 %08x\n", i, off);
  59                 free(buf);
  60                 return 1;
  61         }
  62         printf("Page %08x 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%x, 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 %lu 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("  %08x\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("%08x - %08x: %8d 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;
 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                 if (!fit_check_format (fit_hdr)) {
 530                         show_boot_progress (-150);
 531                         puts ("** Bad FIT image format\n");
 532                         return 1;
 533                 }
 534                 show_boot_progress (151);
 535                 puts ("Fit image detected...\n");
 536
 537                 cnt = fit_get_size (fit_hdr);
 538                 break;
 539 #endif
 540         default:
 541                 show_boot_progress (-57);
 542                 puts ("** Unknown image type\n");
 543                 return 1;
 544         }
 545
 546         if (jffs2) {
 547                 nand_read_options_t opts;
 548                 memset(&opts, 0, sizeof(opts));
 549                 opts.buffer     = (u_char*) addr;
 550                 opts.length     = cnt;
 551                 opts.offset     = offset;
 552                 opts.quiet      = 1;
 553                 r = nand_read_opts(nand, &opts);
 554         } else {
 555                 r = nand_read(nand, offset, &cnt, (u_char *) addr);
 556         }
 557
 558         if (r) {
 559                 puts("** Read error\n");
 560                 show_boot_progress (-58);
 561                 return 1;
 562         }
 563         show_boot_progress (58);
 564
 565 #if defined(CONFIG_FIT)
 566         /* This cannot be done earlier, we need complete FIT image in RAM first */
 567         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT)
 568                 fit_print_contents ((const void *)addr);
 569 #endif
 570
 571         /* Loading ok, update default load address */
 572
 573         load_addr = addr;
 574
 575         /* Check if we should attempt an auto-start */
 576         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
 577                 char *local_args[2];
 578                 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
 579
 580                 local_args[0] = cmd;
 581                 local_args[1] = NULL;
 582
 583                 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
 584
 585                 do_bootm(cmdtp, 0, 1, local_args);
 586                 return 1;
 587         }
 588         return 0;
 589 }
 590
 591 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 592 {
 593         char *boot_device = NULL;
 594         int idx;
 595         ulong addr, offset = 0;
 596 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 597         struct mtd_device *dev;
 598         struct part_info *part;
 599         u8 pnum;
 600
 601         if (argc >= 2) {
 602                 char *p = (argc == 2) ? argv[1] : argv[2];
 603                 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
 604                     (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
 605                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 606                                 puts("Not a NAND device\n");
 607                                 return 1;
 608                         }
 609                         if (argc > 3)
 610                                 goto usage;
 611                         if (argc == 3)
 612                                 addr = simple_strtoul(argv[1], NULL, 16);
 613                         else
 614                                 addr = CFG_LOAD_ADDR;
 615                         return nand_load_image(cmdtp, &nand_info[dev->id->num],
 616                                                part->offset, addr, argv[0]);
 617                 }
 618         }
 619 #endif
 620
 621         show_boot_progress(52);
 622         switch (argc) {
 623         case 1:
 624                 addr = CFG_LOAD_ADDR;
 625                 boot_device = getenv("bootdevice");
 626                 break;
 627         case 2:
 628                 addr = simple_strtoul(argv[1], NULL, 16);
 629                 boot_device = getenv("bootdevice");
 630                 break;
 631         case 3:
 632                 addr = simple_strtoul(argv[1], NULL, 16);
 633                 boot_device = argv[2];
 634                 break;
 635         case 4:
 636                 addr = simple_strtoul(argv[1], NULL, 16);
 637                 boot_device = argv[2];
 638                 offset = simple_strtoul(argv[3], NULL, 16);
 639                 break;
 640         default:
 641 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 642 usage:
 643 #endif
 644                 printf("Usage:\n%s\n", cmdtp->usage);
 645                 show_boot_progress(-53);
 646                 return 1;
 647         }
 648
 649         show_boot_progress(53);
 650         if (!boot_device) {
 651                 puts("\n** No boot device **\n");
 652                 show_boot_progress(-54);
 653                 return 1;
 654         }
 655         show_boot_progress(54);
 656
 657         idx = simple_strtoul(boot_device, NULL, 16);
 658
 659         if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
 660                 printf("\n** Device %d not available\n", idx);
 661                 show_boot_progress(-55);
 662                 return 1;
 663         }
 664         show_boot_progress(55);
 665
 666         return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
 667 }
 668
 669 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
 670         "nboot   - boot from NAND device\n",
 671         "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
 672
 673 #endif
 674
 675 #else /* CFG_NAND_LEGACY */
 676 /*
 677  *
 678  * Legacy NAND support - to be phased out
 679  *
 680  */
 681 #include <command.h>
 682 #include <malloc.h>
 683 #include <asm/io.h>
 684 #include <watchdog.h>
 685
 686 #ifdef CONFIG_show_boot_progress
 687 # include <status_led.h>
 688 # define show_boot_progress(arg)        show_boot_progress(arg)
 689 #else
 690 # define show_boot_progress(arg)
 691 #endif
 692
 693 #if defined(CONFIG_CMD_NAND)
 694 #include <linux/mtd/nand_legacy.h>
 695 #if 0
 696 #include <linux/mtd/nand_ids.h>
 697 #include <jffs2/jffs2.h>
 698 #endif
 699
 700 #ifdef CONFIG_OMAP1510
 701 void archflashwp(void *archdata, int wp);
 702 #endif
 703
 704 #define ROUND_DOWN(value,boundary)      ((value) & (~((boundary)-1)))
 705
 706 #undef  NAND_DEBUG
 707 #undef  PSYCHO_DEBUG
 708
 709 /* ****************** WARNING *********************
 710  * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
 711  * erase (or at least attempt to erase) blocks that are marked
 712  * bad. This can be very handy if you are _sure_ that the block
 713  * is OK, say because you marked a good block bad to test bad
 714  * block handling and you are done testing, or if you have
 715  * accidentally marked blocks bad.
 716  *
 717  * Erasing factory marked bad blocks is a _bad_ idea. If the
 718  * erase succeeds there is no reliable way to find them again,
 719  * and attempting to program or erase bad blocks can affect
 720  * the data in _other_ (good) blocks.
 721  */
 722 #define  ALLOW_ERASE_BAD_DEBUG 0
 723
 724 #define CONFIG_MTD_NAND_ECC  /* enable ECC */
 725 #define CONFIG_MTD_NAND_ECC_JFFS2
 726
 727 /* bits for nand_legacy_rw() `cmd'; or together as needed */
 728 #define NANDRW_READ     0x01
 729 #define NANDRW_WRITE    0x00
 730 #define NANDRW_JFFS2    0x02
 731 #define NANDRW_JFFS2_SKIP       0x04
 732
 733 /*
 734  * Imports from nand_legacy.c
 735  */
 736 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
 737 extern int curr_device;
 738 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
 739                             size_t len, int clean);
 740 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
 741                          size_t len, size_t *retlen, u_char *buf);
 742 extern void nand_print(struct nand_chip *nand);
 743 extern void nand_print_bad(struct nand_chip *nand);
 744 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
 745                                size_t len, size_t *retlen, u_char *buf);
 746 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
 747                                 size_t len, size_t *retlen, const u_char *buf);
 748
 749
 750 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 751 {
 752         int rcode = 0;
 753
 754         switch (argc) {
 755         case 0:
 756         case 1:
 757                 printf ("Usage:\n%s\n", cmdtp->usage);
 758                 return 1;
 759         case 2:
 760                 if (strcmp (argv[1], "info") == 0) {
 761                         int i;
 762
 763                         putc ('\n');
 764
 765                         for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
 766                                 if (nand_dev_desc[i].ChipID ==
 767                                     NAND_ChipID_UNKNOWN)
 768                                         continue;       /* list only known devices */
 769                                 printf ("Device %d: ", i);
 770                                 nand_print (&nand_dev_desc[i]);
 771                         }
 772                         return 0;
 773
 774                 } else if (strcmp (argv[1], "device") == 0) {
 775                         if ((curr_device < 0)
 776                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 777                                 puts ("\nno devices available\n");
 778                                 return 1;
 779                         }
 780                         printf ("\nDevice %d: ", curr_device);
 781                         nand_print (&nand_dev_desc[curr_device]);
 782                         return 0;
 783
 784                 } else if (strcmp (argv[1], "bad") == 0) {
 785                         if ((curr_device < 0)
 786                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 787                                 puts ("\nno devices available\n");
 788                                 return 1;
 789                         }
 790                         printf ("\nDevice %d bad blocks:\n", curr_device);
 791                         nand_print_bad (&nand_dev_desc[curr_device]);
 792                         return 0;
 793
 794                 }
 795                 printf ("Usage:\n%s\n", cmdtp->usage);
 796                 return 1;
 797         case 3:
 798                 if (strcmp (argv[1], "device") == 0) {
 799                         int dev = (int) simple_strtoul (argv[2], NULL, 10);
 800
 801                         printf ("\nDevice %d: ", dev);
 802                         if (dev >= CFG_MAX_NAND_DEVICE) {
 803                                 puts ("unknown device\n");
 804                                 return 1;
 805                         }
 806                         nand_print (&nand_dev_desc[dev]);
 807                         /*nand_print (dev); */
 808
 809                         if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
 810                                 return 1;
 811                         }
 812
 813                         curr_device = dev;
 814
 815                         puts ("... is now current device\n");
 816
 817                         return 0;
 818                 } else if (strcmp (argv[1], "erase") == 0
 819                            && strcmp (argv[2], "clean") == 0) {
 820                         struct nand_chip *nand = &nand_dev_desc[curr_device];
 821                         ulong off = 0;
 822                         ulong size = nand->totlen;
 823                         int ret;
 824
 825                         printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
 826
 827                         ret = nand_legacy_erase (nand, off, size, 1);
 828
 829                         printf ("%s\n", ret ? "ERROR" : "OK");
 830
 831                         return ret;
 832                 }
 833
 834                 printf ("Usage:\n%s\n", cmdtp->usage);
 835                 return 1;
 836         default:
 837                 /* at least 4 args */
 838
 839                 if (strncmp (argv[1], "read", 4) == 0 ||
 840                     strncmp (argv[1], "write", 5) == 0) {
 841                         ulong   addr = simple_strtoul (argv[2], NULL, 16);
 842                         off_t   off  = simple_strtoul (argv[3], NULL, 16);
 843                         size_t  size = simple_strtoul (argv[4], NULL, 16);
 844                         int     cmd = (strncmp (argv[1], "read", 4) == 0) ?
 845                                         NANDRW_READ : NANDRW_WRITE;
 846                         size_t total;
 847                         int ret;
 848                         char *cmdtail = strchr (argv[1], '.');
 849
 850                         if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
 851                                 /* read out-of-band data */
 852                                 if (cmd & NANDRW_READ) {
 853                                         ret = nand_read_oob (nand_dev_desc + curr_device,
 854                                                              off, size, &total,
 855                                                              (u_char *) addr);
 856                                 } else {
 857                                         ret = nand_write_oob (nand_dev_desc + curr_device,
 858                                                               off, size, &total,
 859                                                               (u_char *) addr);
 860                                 }
 861                                 return ret;
 862                         } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
 863                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 864                         else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
 865                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 866                                 if (cmd & NANDRW_READ)
 867                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 868                         }
 869 #ifdef SXNI855T
 870                         /* need ".e" same as ".j" for compatibility with older units */
 871                         else if (cmdtail && !strcmp (cmdtail, ".e"))
 872                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 873 #endif
 874 #ifdef CFG_NAND_SKIP_BAD_DOT_I
 875                         /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
 876                         /* ".i" for image -> read skips bad block (no 0xff) */
 877                         else if (cmdtail && !strcmp (cmdtail, ".i")) {
 878                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 879                                 if (cmd & NANDRW_READ)
 880                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 881                         }
 882 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
 883                         else if (cmdtail) {
 884                                 printf ("Usage:\n%s\n", cmdtp->usage);
 885                                 return 1;
 886                         }
 887
 888                         printf ("\nNAND %s: device %d offset %ld, size %ld ...\n",
 889                                 (cmd & NANDRW_READ) ? "read" : "write",
 890                                 curr_device, off, size);
 891
 892                         ret = nand_legacy_rw (nand_dev_desc + curr_device,
 893                                               cmd, off, size,
 894                                               &total,
 895                                               (u_char *) addr);
 896
 897                         printf (" %d bytes %s: %s\n", total,
 898                                 (cmd & NANDRW_READ) ? "read" : "written",
 899                                 ret ? "ERROR" : "OK");
 900
 901                         return ret;
 902                 } else if (strcmp (argv[1], "erase") == 0 &&
 903                            (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
 904                         int clean = argc == 5;
 905                         ulong off =
 906                                 simple_strtoul (argv[2 + clean], NULL, 16);
 907                         ulong size =
 908                                 simple_strtoul (argv[3 + clean], NULL, 16);
 909                         int ret;
 910
 911                         printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
 912                                 curr_device, off, size);
 913
 914                         ret = nand_legacy_erase (nand_dev_desc + curr_device,
 915                                                  off, size, clean);
 916
 917                         printf ("%s\n", ret ? "ERROR" : "OK");
 918
 919                         return ret;
 920                 } else {
 921                         printf ("Usage:\n%s\n", cmdtp->usage);
 922                         rcode = 1;
 923                 }
 924
 925                 return rcode;
 926         }
 927 }
 928
 929 U_BOOT_CMD(
 930         nand,   5,      1,      do_nand,
 931         "nand    - legacy NAND sub-system\n",
 932         "info  - show available NAND devices\n"
 933         "nand device [dev] - show or set current device\n"
 934         "nand read[.jffs2[s]]  addr off size\n"
 935         "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
 936         "    at offset `off' to/from memory address `addr'\n"
 937         "nand erase [clean] [off size] - erase `size' bytes from\n"
 938         "    offset `off' (entire device if not specified)\n"
 939         "nand bad - show bad blocks\n"
 940         "nand read.oob addr off size - read out-of-band data\n"
 941         "nand write.oob addr off size - read out-of-band data\n"
 942 );
 943
 944 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 945 {
 946         char *boot_device = NULL;
 947         char *ep;
 948         int dev;
 949         ulong cnt;
 950         ulong addr;
 951         ulong offset = 0;
 952         image_header_t *hdr;
 953         int rcode = 0;
 954 #if defined(CONFIG_FIT)
 955         const void *fit_hdr;
 956 #endif
 957
 958         show_boot_progress (52);
 959         switch (argc) {
 960         case 1:
 961                 addr = CFG_LOAD_ADDR;
 962                 boot_device = getenv ("bootdevice");
 963                 break;
 964         case 2:
 965                 addr = simple_strtoul(argv[1], NULL, 16);
 966                 boot_device = getenv ("bootdevice");
 967                 break;
 968         case 3:
 969                 addr = simple_strtoul(argv[1], NULL, 16);
 970                 boot_device = argv[2];
 971                 break;
 972         case 4:
 973                 addr = simple_strtoul(argv[1], NULL, 16);
 974                 boot_device = argv[2];
 975                 offset = simple_strtoul(argv[3], NULL, 16);
 976                 break;
 977         default:
 978                 printf ("Usage:\n%s\n", cmdtp->usage);
 979                 show_boot_progress (-53);
 980                 return 1;
 981         }
 982
 983         show_boot_progress (53);
 984         if (!boot_device) {
 985                 puts ("\n** No boot device **\n");
 986                 show_boot_progress (-54);
 987                 return 1;
 988         }
 989         show_boot_progress (54);
 990
 991         dev = simple_strtoul(boot_device, &ep, 16);
 992
 993         if ((dev >= CFG_MAX_NAND_DEVICE) ||
 994             (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
 995                 printf ("\n** Device %d not available\n", dev);
 996                 show_boot_progress (-55);
 997                 return 1;
 998         }
 999         show_boot_progress (55);
1000
1001         printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1002                 dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
1003                 offset);
1004
1005         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
1006                         SECTORSIZE, NULL, (u_char *)addr)) {
1007                 printf ("** Read error on %d\n", dev);
1008                 show_boot_progress (-56);
1009                 return 1;
1010         }
1011         show_boot_progress (56);
1012
1013         switch (genimg_get_format ((void *)addr)) {
1014         case IMAGE_FORMAT_LEGACY:
1015                 hdr = (image_header_t *)addr;
1016                 image_print_contents (hdr);
1017
1018                 cnt = image_get_image_size (hdr);
1019                 cnt -= SECTORSIZE;
1020                 break;
1021 #if defined(CONFIG_FIT)
1022         case IMAGE_FORMAT_FIT:
1023                 fit_hdr = (const void *)addr;
1024                 if (!fit_check_format (fit_hdr)) {
1025                         show_boot_progress (-150);
1026                         puts ("** Bad FIT image format\n");
1027                         return 1;
1028                 }
1029                 show_boot_progress (151);
1030                 puts ("Fit image detected...\n");
1031
1032                 cnt = fit_get_size (fit_hdr);
1033                 break;
1034 #endif
1035         default:
1036                 show_boot_progress (-57);
1037                 puts ("** Unknown image type\n");
1038                 return 1;
1039         }
1040         show_boot_progress (57);
1041
1042         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
1043                         offset + SECTORSIZE, cnt, NULL,
1044                         (u_char *)(addr+SECTORSIZE))) {
1045                 printf ("** Read error on %d\n", dev);
1046                 show_boot_progress (-58);
1047                 return 1;
1048         }
1049         show_boot_progress (58);
1050
1051 #if defined(CONFIG_FIT)
1052         /* This cannot be done earlier, we need complete FIT image in RAM first */
1053         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT)
1054                 fit_print_contents ((const void *)addr);
1055 #endif
1056
1057         /* Loading ok, update default load address */
1058
1059         load_addr = addr;
1060
1061         /* Check if we should attempt an auto-start */
1062         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1063                 char *local_args[2];
1064                 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1065
1066                 local_args[0] = argv[0];
1067                 local_args[1] = NULL;
1068
1069                 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1070
1071                 do_bootm (cmdtp, 0, 1, local_args);
1072                 rcode = 1;
1073         }
1074         return rcode;
1075 }
1076
1077 U_BOOT_CMD(
1078         nboot,  4,      1,      do_nandboot,
1079         "nboot   - boot from NAND device\n",
1080         "loadAddr dev\n"
1081 );
1082
1083 #endif
1084
1085 #endif /* CFG_NAND_LEGACY */