git.sur5r.net Git - u-boot/blob - 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, size_t *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], (ulong *)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;
 162         size_t size;
 163         char *cmd, *s;
 164         nand_info_t *nand;
 165 #ifdef CFG_NAND_QUIET
 166         int quiet = CFG_NAND_QUIET;
 167 #else
 168         int quiet = 0;
 169 #endif
 170         const char *quiet_str = getenv("quiet");
 171
 172         /* at least two arguments please */
 173         if (argc < 2)
 174                 goto usage;
 175
 176         if (quiet_str)
 177                 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
 178
 179         cmd = argv[1];
 180
 181         if (strcmp(cmd, "info") == 0) {
 182
 183                 putc('\n');
 184                 for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
 185                         if (nand_info[i].name)
 186                                 printf("Device %d: %s, sector size %lu KiB\n",
 187                                         i, nand_info[i].name,
 188                                         nand_info[i].erasesize >> 10);
 189                 }
 190                 return 0;
 191         }
 192
 193         if (strcmp(cmd, "device") == 0) {
 194
 195                 if (argc < 3) {
 196                         if ((nand_curr_device < 0) ||
 197                             (nand_curr_device >= CFG_MAX_NAND_DEVICE))
 198                                 puts("\nno devices available\n");
 199                         else
 200                                 printf("\nDevice %d: %s\n", nand_curr_device,
 201                                         nand_info[nand_curr_device].name);
 202                         return 0;
 203                 }
 204                 dev = (int)simple_strtoul(argv[2], NULL, 10);
 205                 if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) {
 206                         puts("No such device\n");
 207                         return 1;
 208                 }
 209                 printf("Device %d: %s", dev, nand_info[dev].name);
 210                 puts("... is now current device\n");
 211                 nand_curr_device = dev;
 212
 213 #ifdef CFG_NAND_SELECT_DEVICE
 214                 /*
 215                  * Select the chip in the board/cpu specific driver
 216                  */
 217                 board_nand_select_device(nand_info[dev].priv, dev);
 218 #endif
 219
 220                 return 0;
 221         }
 222
 223         if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 &&
 224             strncmp(cmd, "dump", 4) != 0 &&
 225             strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 &&
 226             strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 &&
 227             strcmp(cmd, "biterr") != 0 &&
 228             strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 )
 229                 goto usage;
 230
 231         /* the following commands operate on the current device */
 232         if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE ||
 233             !nand_info[nand_curr_device].name) {
 234                 puts("\nno devices available\n");
 235                 return 1;
 236         }
 237         nand = &nand_info[nand_curr_device];
 238
 239         if (strcmp(cmd, "bad") == 0) {
 240                 printf("\nDevice %d bad blocks:\n", nand_curr_device);
 241                 for (off = 0; off < nand->size; off += nand->erasesize)
 242                         if (nand_block_isbad(nand, off))
 243                                 printf("  %08x\n", off);
 244                 return 0;
 245         }
 246
 247         /*
 248          * Syntax is:
 249          *   0    1     2       3    4
 250          *   nand erase [clean] [off size]
 251          */
 252         if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) {
 253                 nand_erase_options_t opts;
 254                 /* "clean" at index 2 means request to write cleanmarker */
 255                 int clean = argc > 2 && !strcmp("clean", argv[2]);
 256                 int o = clean ? 3 : 2;
 257                 int scrub = !strcmp(cmd, "scrub");
 258
 259                 printf("\nNAND %s: ", scrub ? "scrub" : "erase");
 260                 /* skip first two or three arguments, look for offset and size */
 261                 if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
 262                         return 1;
 263
 264                 memset(&opts, 0, sizeof(opts));
 265                 opts.offset = off;
 266                 opts.length = size;
 267                 opts.jffs2  = clean;
 268                 opts.quiet  = quiet;
 269
 270                 if (scrub) {
 271                         puts("Warning: "
 272                              "scrub option will erase all factory set "
 273                              "bad blocks!\n"
 274                              "         "
 275                              "There is no reliable way to recover them.\n"
 276                              "         "
 277                              "Use this command only for testing purposes "
 278                              "if you\n"
 279                              "         "
 280                              "are sure of what you are doing!\n"
 281                              "\nReally scrub this NAND flash? <y/N>\n");
 282
 283                         if (getc() == 'y' && getc() == '\r') {
 284                                 opts.scrub = 1;
 285                         } else {
 286                                 puts("scrub aborted\n");
 287                                 return -1;
 288                         }
 289                 }
 290                 ret = nand_erase_opts(nand, &opts);
 291                 printf("%s\n", ret ? "ERROR" : "OK");
 292
 293                 return ret == 0 ? 0 : 1;
 294         }
 295
 296         if (strncmp(cmd, "dump", 4) == 0) {
 297                 if (argc < 3)
 298                         goto usage;
 299
 300                 s = strchr(cmd, '.');
 301                 off = (int)simple_strtoul(argv[2], NULL, 16);
 302
 303                 if (s != NULL && strcmp(s, ".oob") == 0)
 304                         ret = nand_dump_oob(nand, off);
 305                 else
 306                         ret = nand_dump(nand, off);
 307
 308                 return ret == 0 ? 1 : 0;
 309
 310         }
 311
 312         /* read write */
 313         if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
 314                 int read;
 315
 316                 if (argc < 4)
 317                         goto usage;
 318
 319                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
 320
 321                 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
 322                 printf("\nNAND %s: ", read ? "read" : "write");
 323                 if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
 324                         return 1;
 325
 326                 s = strchr(cmd, '.');
 327                 if (s != NULL &&
 328                     (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) {
 329                         if (read) {
 330                                 /* read */
 331                                 nand_read_options_t opts;
 332                                 memset(&opts, 0, sizeof(opts));
 333                                 opts.buffer     = (u_char*) addr;
 334                                 opts.length     = size;
 335                                 opts.offset     = off;
 336                                 opts.quiet      = quiet;
 337                                 ret = nand_read_opts(nand, &opts);
 338                         } else {
 339                                 /* write */
 340                                 nand_write_options_t opts;
 341                                 memset(&opts, 0, sizeof(opts));
 342                                 opts.buffer     = (u_char*) addr;
 343                                 opts.length     = size;
 344                                 opts.offset     = off;
 345                                 /* opts.forcejffs2 = 1; */
 346                                 opts.pad        = 1;
 347                                 opts.blockalign = 1;
 348                                 opts.quiet      = quiet;
 349                                 ret = nand_write_opts(nand, &opts);
 350                         }
 351                 } else if (s != NULL && !strcmp(s, ".oob")) {
 352                         /* read out-of-band data */
 353                         if (read)
 354                                 ret = nand->read_oob(nand, off, size, &size,
 355                                                      (u_char *) addr);
 356                         else
 357                                 ret = nand->write_oob(nand, off, size, &size,
 358                                                       (u_char *) addr);
 359                 } else {
 360                         if (read)
 361                                 ret = nand_read(nand, off, &size, (u_char *)addr);
 362                         else
 363                                 ret = nand_write(nand, off, &size, (u_char *)addr);
 364                 }
 365
 366                 printf(" %d bytes %s: %s\n", size,
 367                        read ? "read" : "written", ret ? "ERROR" : "OK");
 368
 369                 return ret == 0 ? 0 : 1;
 370         }
 371
 372         if (strcmp(cmd, "markbad") == 0) {
 373                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
 374
 375                 int ret = nand->block_markbad(nand, addr);
 376                 if (ret == 0) {
 377                         printf("block 0x%08lx successfully marked as bad\n",
 378                                (ulong) addr);
 379                         return 0;
 380                 } else {
 381                         printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
 382                                (ulong) addr, ret);
 383                 }
 384                 return 1;
 385         }
 386         if (strcmp(cmd, "biterr") == 0) {
 387                 /* todo */
 388                 return 1;
 389         }
 390
 391         if (strcmp(cmd, "lock") == 0) {
 392                 int tight  = 0;
 393                 int status = 0;
 394                 if (argc == 3) {
 395                         if (!strcmp("tight", argv[2]))
 396                                 tight = 1;
 397                         if (!strcmp("status", argv[2]))
 398                                 status = 1;
 399                 }
 400
 401                 if (status) {
 402                         ulong block_start = 0;
 403                         ulong off;
 404                         int last_status = -1;
 405
 406                         struct nand_chip *nand_chip = nand->priv;
 407                         /* check the WP bit */
 408                         nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1);
 409                         printf("device is %swrite protected\n",
 410                                (nand_chip->read_byte(nand) & 0x80 ?
 411                                 "NOT " : "" ) );
 412
 413                         for (off = 0; off < nand->size; off += nand->oobblock) {
 414                                 int s = nand_get_lock_status(nand, off);
 415
 416                                 /* print message only if status has changed
 417                                  * or at end of chip
 418                                  */
 419                                 if (off == nand->size - nand->oobblock
 420                                     || (s != last_status && off != 0))  {
 421
 422                                         printf("%08x - %08x: %8d pages %s%s%s\n",
 423                                                block_start,
 424                                                off-1,
 425                                                (off-block_start)/nand->oobblock,
 426                                                ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
 427                                                ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
 428                                                ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
 429                                 }
 430
 431                                 last_status = s;
 432                        }
 433                 } else {
 434                         if (!nand_lock(nand, tight)) {
 435                                 puts("NAND flash successfully locked\n");
 436                         } else {
 437                                 puts("Error locking NAND flash\n");
 438                                 return 1;
 439                         }
 440                 }
 441                 return 0;
 442         }
 443
 444         if (strcmp(cmd, "unlock") == 0) {
 445                 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
 446                         return 1;
 447
 448                 if (!nand_unlock(nand, off, size)) {
 449                         puts("NAND flash successfully unlocked\n");
 450                 } else {
 451                         puts("Error unlocking NAND flash, "
 452                              "write and erase will probably fail\n");
 453                         return 1;
 454                 }
 455                 return 0;
 456         }
 457
 458 usage:
 459         printf("Usage:\n%s\n", cmdtp->usage);
 460         return 1;
 461 }
 462
 463 U_BOOT_CMD(nand, 5, 1, do_nand,
 464         "nand    - NAND sub-system\n",
 465         "info                  - show available NAND devices\n"
 466         "nand device [dev]     - show or set current device\n"
 467         "nand read[.jffs2]     - addr off|partition size\n"
 468         "nand write[.jffs2]    - addr off|partition size - read/write `size' bytes starting\n"
 469         "    at offset `off' to/from memory address `addr'\n"
 470         "nand erase [clean] [off size] - erase `size' bytes from\n"
 471         "    offset `off' (entire device if not specified)\n"
 472         "nand bad - show bad blocks\n"
 473         "nand dump[.oob] off - dump page\n"
 474         "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
 475         "nand markbad off - mark bad block at offset (UNSAFE)\n"
 476         "nand biterr off - make a bit error at offset (UNSAFE)\n"
 477         "nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
 478         "nand unlock [offset] [size] - unlock section\n");
 479
 480 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
 481                            ulong offset, ulong addr, char *cmd)
 482 {
 483         int r;
 484         char *ep, *s;
 485         size_t cnt;
 486         image_header_t *hdr;
 487         int jffs2 = 0;
 488 #if defined(CONFIG_FIT)
 489         const void *fit_hdr;
 490 #endif
 491
 492         s = strchr(cmd, '.');
 493         if (s != NULL &&
 494             (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
 495                 jffs2 = 1;
 496
 497         printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
 498
 499         cnt = nand->oobblock;
 500         if (jffs2) {
 501                 nand_read_options_t opts;
 502                 memset(&opts, 0, sizeof(opts));
 503                 opts.buffer     = (u_char*) addr;
 504                 opts.length     = cnt;
 505                 opts.offset     = offset;
 506                 opts.quiet      = 1;
 507                 r = nand_read_opts(nand, &opts);
 508         } else {
 509                 r = nand_read(nand, offset, &cnt, (u_char *) addr);
 510         }
 511
 512         if (r) {
 513                 puts("** Read error\n");
 514                 show_boot_progress (-56);
 515                 return 1;
 516         }
 517         show_boot_progress (56);
 518
 519         switch (genimg_get_format ((void *)addr)) {
 520         case IMAGE_FORMAT_LEGACY:
 521                 hdr = (image_header_t *)addr;
 522
 523                 show_boot_progress (57);
 524                 image_print_contents (hdr);
 525
 526                 cnt = image_get_image_size (hdr);
 527                 break;
 528 #if defined(CONFIG_FIT)
 529         case IMAGE_FORMAT_FIT:
 530                 fit_hdr = (const void *)addr;
 531                 if (!fit_check_format (fit_hdr)) {
 532                         show_boot_progress (-150);
 533                         puts ("** Bad FIT image format\n");
 534                         return 1;
 535                 }
 536                 show_boot_progress (151);
 537                 puts ("Fit image detected...\n");
 538
 539                 cnt = fit_get_size (fit_hdr);
 540                 break;
 541 #endif
 542         default:
 543                 show_boot_progress (-57);
 544                 puts ("** Unknown image type\n");
 545                 return 1;
 546         }
 547
 548         if (jffs2) {
 549                 nand_read_options_t opts;
 550                 memset(&opts, 0, sizeof(opts));
 551                 opts.buffer     = (u_char*) addr;
 552                 opts.length     = cnt;
 553                 opts.offset     = offset;
 554                 opts.quiet      = 1;
 555                 r = nand_read_opts(nand, &opts);
 556         } else {
 557                 r = nand_read(nand, offset, &cnt, (u_char *) addr);
 558         }
 559
 560         if (r) {
 561                 puts("** Read error\n");
 562                 show_boot_progress (-58);
 563                 return 1;
 564         }
 565         show_boot_progress (58);
 566
 567 #if defined(CONFIG_FIT)
 568         /* This cannot be done earlier, we need complete FIT image in RAM first */
 569         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT)
 570                 fit_print_contents ((const void *)addr);
 571 #endif
 572
 573         /* Loading ok, update default load address */
 574
 575         load_addr = addr;
 576
 577         /* Check if we should attempt an auto-start */
 578         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
 579                 char *local_args[2];
 580                 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
 581
 582                 local_args[0] = cmd;
 583                 local_args[1] = NULL;
 584
 585                 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
 586
 587                 do_bootm(cmdtp, 0, 1, local_args);
 588                 return 1;
 589         }
 590         return 0;
 591 }
 592
 593 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 594 {
 595         char *boot_device = NULL;
 596         int idx;
 597         ulong addr, offset = 0;
 598 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 599         struct mtd_device *dev;
 600         struct part_info *part;
 601         u8 pnum;
 602
 603         if (argc >= 2) {
 604                 char *p = (argc == 2) ? argv[1] : argv[2];
 605                 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
 606                     (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
 607                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 608                                 puts("Not a NAND device\n");
 609                                 return 1;
 610                         }
 611                         if (argc > 3)
 612                                 goto usage;
 613                         if (argc == 3)
 614                                 addr = simple_strtoul(argv[1], NULL, 16);
 615                         else
 616                                 addr = CFG_LOAD_ADDR;
 617                         return nand_load_image(cmdtp, &nand_info[dev->id->num],
 618                                                part->offset, addr, argv[0]);
 619                 }
 620         }
 621 #endif
 622
 623         show_boot_progress(52);
 624         switch (argc) {
 625         case 1:
 626                 addr = CFG_LOAD_ADDR;
 627                 boot_device = getenv("bootdevice");
 628                 break;
 629         case 2:
 630                 addr = simple_strtoul(argv[1], NULL, 16);
 631                 boot_device = getenv("bootdevice");
 632                 break;
 633         case 3:
 634                 addr = simple_strtoul(argv[1], NULL, 16);
 635                 boot_device = argv[2];
 636                 break;
 637         case 4:
 638                 addr = simple_strtoul(argv[1], NULL, 16);
 639                 boot_device = argv[2];
 640                 offset = simple_strtoul(argv[3], NULL, 16);
 641                 break;
 642         default:
 643 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 644 usage:
 645 #endif
 646                 printf("Usage:\n%s\n", cmdtp->usage);
 647                 show_boot_progress(-53);
 648                 return 1;
 649         }
 650
 651         show_boot_progress(53);
 652         if (!boot_device) {
 653                 puts("\n** No boot device **\n");
 654                 show_boot_progress(-54);
 655                 return 1;
 656         }
 657         show_boot_progress(54);
 658
 659         idx = simple_strtoul(boot_device, NULL, 16);
 660
 661         if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
 662                 printf("\n** Device %d not available\n", idx);
 663                 show_boot_progress(-55);
 664                 return 1;
 665         }
 666         show_boot_progress(55);
 667
 668         return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
 669 }
 670
 671 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
 672         "nboot   - boot from NAND device\n",
 673         "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
 674
 675 #endif
 676
 677 #else /* CFG_NAND_LEGACY */
 678 /*
 679  *
 680  * Legacy NAND support - to be phased out
 681  *
 682  */
 683 #include <command.h>
 684 #include <malloc.h>
 685 #include <asm/io.h>
 686 #include <watchdog.h>
 687
 688 #ifdef CONFIG_show_boot_progress
 689 # include <status_led.h>
 690 # define show_boot_progress(arg)        show_boot_progress(arg)
 691 #else
 692 # define show_boot_progress(arg)
 693 #endif
 694
 695 #if defined(CONFIG_CMD_NAND)
 696 #include <linux/mtd/nand_legacy.h>
 697 #if 0
 698 #include <linux/mtd/nand_ids.h>
 699 #include <jffs2/jffs2.h>
 700 #endif
 701
 702 #ifdef CONFIG_OMAP1510
 703 void archflashwp(void *archdata, int wp);
 704 #endif
 705
 706 #define ROUND_DOWN(value,boundary)      ((value) & (~((boundary)-1)))
 707
 708 #undef  NAND_DEBUG
 709 #undef  PSYCHO_DEBUG
 710
 711 /* ****************** WARNING *********************
 712  * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
 713  * erase (or at least attempt to erase) blocks that are marked
 714  * bad. This can be very handy if you are _sure_ that the block
 715  * is OK, say because you marked a good block bad to test bad
 716  * block handling and you are done testing, or if you have
 717  * accidentally marked blocks bad.
 718  *
 719  * Erasing factory marked bad blocks is a _bad_ idea. If the
 720  * erase succeeds there is no reliable way to find them again,
 721  * and attempting to program or erase bad blocks can affect
 722  * the data in _other_ (good) blocks.
 723  */
 724 #define  ALLOW_ERASE_BAD_DEBUG 0
 725
 726 #define CONFIG_MTD_NAND_ECC  /* enable ECC */
 727 #define CONFIG_MTD_NAND_ECC_JFFS2
 728
 729 /* bits for nand_legacy_rw() `cmd'; or together as needed */
 730 #define NANDRW_READ     0x01
 731 #define NANDRW_WRITE    0x00
 732 #define NANDRW_JFFS2    0x02
 733 #define NANDRW_JFFS2_SKIP       0x04
 734
 735 /*
 736  * Imports from nand_legacy.c
 737  */
 738 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
 739 extern int curr_device;
 740 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
 741                             size_t len, int clean);
 742 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
 743                          size_t len, size_t *retlen, u_char *buf);
 744 extern void nand_print(struct nand_chip *nand);
 745 extern void nand_print_bad(struct nand_chip *nand);
 746 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
 747                                size_t len, size_t *retlen, u_char *buf);
 748 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
 749                                 size_t len, size_t *retlen, const u_char *buf);
 750
 751
 752 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 753 {
 754         int rcode = 0;
 755
 756         switch (argc) {
 757         case 0:
 758         case 1:
 759                 printf ("Usage:\n%s\n", cmdtp->usage);
 760                 return 1;
 761         case 2:
 762                 if (strcmp (argv[1], "info") == 0) {
 763                         int i;
 764
 765                         putc ('\n');
 766
 767                         for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
 768                                 if (nand_dev_desc[i].ChipID ==
 769                                     NAND_ChipID_UNKNOWN)
 770                                         continue;       /* list only known devices */
 771                                 printf ("Device %d: ", i);
 772                                 nand_print (&nand_dev_desc[i]);
 773                         }
 774                         return 0;
 775
 776                 } else if (strcmp (argv[1], "device") == 0) {
 777                         if ((curr_device < 0)
 778                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 779                                 puts ("\nno devices available\n");
 780                                 return 1;
 781                         }
 782                         printf ("\nDevice %d: ", curr_device);
 783                         nand_print (&nand_dev_desc[curr_device]);
 784                         return 0;
 785
 786                 } else if (strcmp (argv[1], "bad") == 0) {
 787                         if ((curr_device < 0)
 788                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 789                                 puts ("\nno devices available\n");
 790                                 return 1;
 791                         }
 792                         printf ("\nDevice %d bad blocks:\n", curr_device);
 793                         nand_print_bad (&nand_dev_desc[curr_device]);
 794                         return 0;
 795
 796                 }
 797                 printf ("Usage:\n%s\n", cmdtp->usage);
 798                 return 1;
 799         case 3:
 800                 if (strcmp (argv[1], "device") == 0) {
 801                         int dev = (int) simple_strtoul (argv[2], NULL, 10);
 802
 803                         printf ("\nDevice %d: ", dev);
 804                         if (dev >= CFG_MAX_NAND_DEVICE) {
 805                                 puts ("unknown device\n");
 806                                 return 1;
 807                         }
 808                         nand_print (&nand_dev_desc[dev]);
 809                         /*nand_print (dev); */
 810
 811                         if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
 812                                 return 1;
 813                         }
 814
 815                         curr_device = dev;
 816
 817                         puts ("... is now current device\n");
 818
 819                         return 0;
 820                 } else if (strcmp (argv[1], "erase") == 0
 821                            && strcmp (argv[2], "clean") == 0) {
 822                         struct nand_chip *nand = &nand_dev_desc[curr_device];
 823                         ulong off = 0;
 824                         ulong size = nand->totlen;
 825                         int ret;
 826
 827                         printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
 828
 829                         ret = nand_legacy_erase (nand, off, size, 1);
 830
 831                         printf ("%s\n", ret ? "ERROR" : "OK");
 832
 833                         return ret;
 834                 }
 835
 836                 printf ("Usage:\n%s\n", cmdtp->usage);
 837                 return 1;
 838         default:
 839                 /* at least 4 args */
 840
 841                 if (strncmp (argv[1], "read", 4) == 0 ||
 842                     strncmp (argv[1], "write", 5) == 0) {
 843                         ulong addr = simple_strtoul (argv[2], NULL, 16);
 844                         ulong off = simple_strtoul (argv[3], NULL, 16);
 845                         ulong size = simple_strtoul (argv[4], NULL, 16);
 846                         int cmd = (strncmp (argv[1], "read", 4) == 0) ?
 847                                 NANDRW_READ : NANDRW_WRITE;
 848                         int ret, total;
 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 %ld ...\n",
 890                                 (cmd & NANDRW_READ) ? "read" : "write",
 891                                 curr_device, off, 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;
 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                 if (!fit_check_format (fit_hdr)) {
1026                         show_boot_progress (-150);
1027                         puts ("** Bad FIT image format\n");
1028                         return 1;
1029                 }
1030                 show_boot_progress (151);
1031                 puts ("Fit image detected...\n");
1032
1033                 cnt = fit_get_size (fit_hdr);
1034                 break;
1035 #endif
1036         default:
1037                 show_boot_progress (-57);
1038                 puts ("** Unknown image type\n");
1039                 return 1;
1040         }
1041         show_boot_progress (57);
1042
1043         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
1044                         offset + SECTORSIZE, cnt, NULL,
1045                         (u_char *)(addr+SECTORSIZE))) {
1046                 printf ("** Read error on %d\n", dev);
1047                 show_boot_progress (-58);
1048                 return 1;
1049         }
1050         show_boot_progress (58);
1051
1052 #if defined(CONFIG_FIT)
1053         /* This cannot be done earlier, we need complete FIT image in RAM first */
1054         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT)
1055                 fit_print_contents ((const void *)addr);
1056 #endif
1057
1058         /* Loading ok, update default load address */
1059
1060         load_addr = addr;
1061
1062         /* Check if we should attempt an auto-start */
1063         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1064                 char *local_args[2];
1065                 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1066
1067                 local_args[0] = argv[0];
1068                 local_args[1] = NULL;
1069
1070                 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1071
1072                 do_bootm (cmdtp, 0, 1, local_args);
1073                 rcode = 1;
1074         }
1075         return rcode;
1076 }
1077
1078 U_BOOT_CMD(
1079         nboot,  4,      1,      do_nandboot,
1080         "nboot   - boot from NAND device\n",
1081         "loadAddr dev\n"
1082 );
1083
1084 #endif
1085
1086 #endif /* CFG_NAND_LEGACY */