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 #include <linux/mtd/mtd.h>
  22
  23 #if defined(CONFIG_CMD_NAND)
  24
  25 #include <command.h>
  26 #include <watchdog.h>
  27 #include <malloc.h>
  28 #include <asm/byteorder.h>
  29 #include <jffs2/jffs2.h>
  30 #include <nand.h>
  31
  32 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
  33
  34 /* parition handling routines */
  35 int mtdparts_init(void);
  36 int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
  37 int find_dev_and_part(const char *id, struct mtd_device **dev,
  38                       u8 *part_num, struct part_info **part);
  39 #endif
  40
  41 static int nand_dump(nand_info_t *nand, ulong off, int only_oob)
  42 {
  43         int i;
  44         u_char *datbuf, *oobbuf, *p;
  45
  46         datbuf = malloc(nand->writesize + nand->oobsize);
  47         oobbuf = malloc(nand->oobsize);
  48         if (!datbuf || !oobbuf) {
  49                 puts("No memory for page buffer\n");
  50                 return 1;
  51         }
  52         off &= ~(nand->writesize - 1);
  53         loff_t addr = (loff_t) off;
  54         struct mtd_oob_ops ops;
  55         memset(&ops, 0, sizeof(ops));
  56         ops.datbuf = datbuf;
  57         ops.oobbuf = oobbuf; /* must exist, but oob data will be appended to ops.datbuf */
  58         ops.len = nand->writesize;
  59         ops.ooblen = nand->oobsize;
  60         ops.mode = MTD_OOB_RAW;
  61         i = nand->read_oob(nand, addr, &ops);
  62         if (i < 0) {
  63                 printf("Error (%d) reading page %08lx\n", i, off);
  64                 free(datbuf);
  65                 free(oobbuf);
  66                 return 1;
  67         }
  68         printf("Page %08lx dump:\n", off);
  69         i = nand->writesize >> 4;
  70         p = datbuf;
  71
  72         while (i--) {
  73                 if (!only_oob)
  74                         printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
  75                                "  %02x %02x %02x %02x %02x %02x %02x %02x\n",
  76                                p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
  77                                p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
  78                 p += 16;
  79         }
  80         puts("OOB:\n");
  81         i = nand->oobsize >> 3;
  82         while (i--) {
  83                 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
  84                        p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
  85                 p += 8;
  86         }
  87         free(datbuf);
  88         free(oobbuf);
  89
  90         return 0;
  91 }
  92
  93 /* ------------------------------------------------------------------------- */
  94
  95 static inline int str2long(char *p, ulong *num)
  96 {
  97         char *endptr;
  98
  99         *num = simple_strtoul(p, &endptr, 16);
 100         return (*p != '\0' && *endptr == '\0') ? 1 : 0;
 101 }
 102
 103 static int
 104 arg_off_size(int argc, char *argv[], nand_info_t *nand, ulong *off, size_t *size)
 105 {
 106         int idx = nand_curr_device;
 107 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 108         struct mtd_device *dev;
 109         struct part_info *part;
 110         u8 pnum;
 111
 112         if (argc >= 1 && !(str2long(argv[0], off))) {
 113                 if ((mtdparts_init() == 0) &&
 114                     (find_dev_and_part(argv[0], &dev, &pnum, &part) == 0)) {
 115                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 116                                 puts("not a NAND device\n");
 117                                 return -1;
 118                         }
 119                         *off = part->offset;
 120                         if (argc >= 2) {
 121                                 if (!(str2long(argv[1], (ulong *)size))) {
 122                                         printf("'%s' is not a number\n", argv[1]);
 123                                         return -1;
 124                                 }
 125                                 if (*size > part->size)
 126                                         *size = part->size;
 127                         } else {
 128                                 *size = part->size;
 129                         }
 130                         idx = dev->id->num;
 131                         *nand = nand_info[idx];
 132                         goto out;
 133                 }
 134         }
 135 #endif
 136
 137         if (argc >= 1) {
 138                 if (!(str2long(argv[0], off))) {
 139                         printf("'%s' is not a number\n", argv[0]);
 140                         return -1;
 141                 }
 142         } else {
 143                 *off = 0;
 144         }
 145
 146         if (argc >= 2) {
 147                 if (!(str2long(argv[1], (ulong *)size))) {
 148                         printf("'%s' is not a number\n", argv[1]);
 149                         return -1;
 150                 }
 151         } else {
 152                 *size = nand->size - *off;
 153         }
 154
 155 #if  defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 156 out:
 157 #endif
 158         printf("device %d ", idx);
 159         if (*size == nand->size)
 160                 puts("whole chip\n");
 161         else
 162                 printf("offset 0x%lx, size 0x%x\n", *off, *size);
 163         return 0;
 164 }
 165
 166 int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 167 {
 168         int i, dev, ret = 0;
 169         ulong addr, off;
 170         size_t size;
 171         char *cmd, *s;
 172         nand_info_t *nand;
 173 #ifdef CFG_NAND_QUIET
 174         int quiet = CFG_NAND_QUIET;
 175 #else
 176         int quiet = 0;
 177 #endif
 178         const char *quiet_str = getenv("quiet");
 179
 180         /* at least two arguments please */
 181         if (argc < 2)
 182                 goto usage;
 183
 184         if (quiet_str)
 185                 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
 186
 187         cmd = argv[1];
 188
 189         if (strcmp(cmd, "info") == 0) {
 190
 191                 putc('\n');
 192                 for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
 193                         if (nand_info[i].name)
 194                                 printf("Device %d: %s, sector size %u KiB\n",
 195                                        i, nand_info[i].name,
 196                                        nand_info[i].erasesize >> 10);
 197                 }
 198                 return 0;
 199         }
 200
 201         if (strcmp(cmd, "device") == 0) {
 202
 203                 if (argc < 3) {
 204                         if ((nand_curr_device < 0) ||
 205                             (nand_curr_device >= CFG_MAX_NAND_DEVICE))
 206                                 puts("\nno devices available\n");
 207                         else
 208                                 printf("\nDevice %d: %s\n", nand_curr_device,
 209                                        nand_info[nand_curr_device].name);
 210                         return 0;
 211                 }
 212                 dev = (int)simple_strtoul(argv[2], NULL, 10);
 213                 if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) {
 214                         puts("No such device\n");
 215                         return 1;
 216                 }
 217                 printf("Device %d: %s", dev, nand_info[dev].name);
 218                 puts("... is now current device\n");
 219                 nand_curr_device = dev;
 220
 221 #ifdef CFG_NAND_SELECT_DEVICE
 222                 /*
 223                  * Select the chip in the board/cpu specific driver
 224                  */
 225                 board_nand_select_device(nand_info[dev].priv, dev);
 226 #endif
 227
 228                 return 0;
 229         }
 230
 231         if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 &&
 232             strncmp(cmd, "dump", 4) != 0 &&
 233             strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 &&
 234             strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 &&
 235             strcmp(cmd, "biterr") != 0 &&
 236             strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 )
 237                 goto usage;
 238
 239         /* the following commands operate on the current device */
 240         if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE ||
 241             !nand_info[nand_curr_device].name) {
 242                 puts("\nno devices available\n");
 243                 return 1;
 244         }
 245         nand = &nand_info[nand_curr_device];
 246
 247         if (strcmp(cmd, "bad") == 0) {
 248                 printf("\nDevice %d bad blocks:\n", nand_curr_device);
 249                 for (off = 0; off < nand->size; off += nand->erasesize)
 250                         if (nand_block_isbad(nand, off))
 251                                 printf("  %08lx\n", off);
 252                 return 0;
 253         }
 254
 255         /*
 256          * Syntax is:
 257          *   0    1     2       3    4
 258          *   nand erase [clean] [off size]
 259          */
 260         if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) {
 261                 nand_erase_options_t opts;
 262                 /* "clean" at index 2 means request to write cleanmarker */
 263                 int clean = argc > 2 && !strcmp("clean", argv[2]);
 264                 int o = clean ? 3 : 2;
 265                 int scrub = !strcmp(cmd, "scrub");
 266
 267                 printf("\nNAND %s: ", scrub ? "scrub" : "erase");
 268                 /* skip first two or three arguments, look for offset and size */
 269                 if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
 270                         return 1;
 271
 272                 memset(&opts, 0, sizeof(opts));
 273                 opts.offset = off;
 274                 opts.length = size;
 275                 opts.jffs2  = clean;
 276                 opts.quiet  = quiet;
 277
 278                 if (scrub) {
 279                         puts("Warning: "
 280                              "scrub option will erase all factory set "
 281                              "bad blocks!\n"
 282                              "         "
 283                              "There is no reliable way to recover them.\n"
 284                              "         "
 285                              "Use this command only for testing purposes "
 286                              "if you\n"
 287                              "         "
 288                              "are sure of what you are doing!\n"
 289                              "\nReally scrub this NAND flash? <y/N>\n");
 290
 291                         if (getc() == 'y' && getc() == '\r') {
 292                                 opts.scrub = 1;
 293                         } else {
 294                                 puts("scrub aborted\n");
 295                                 return -1;
 296                         }
 297                 }
 298                 ret = nand_erase_opts(nand, &opts);
 299                 printf("%s\n", ret ? "ERROR" : "OK");
 300
 301                 return ret == 0 ? 0 : 1;
 302         }
 303
 304         if (strncmp(cmd, "dump", 4) == 0) {
 305                 if (argc < 3)
 306                         goto usage;
 307
 308                 s = strchr(cmd, '.');
 309                 off = (int)simple_strtoul(argv[2], NULL, 16);
 310
 311                 if (s != NULL && strcmp(s, ".oob") == 0)
 312                         ret = nand_dump(nand, off, 1);
 313                 else
 314                         ret = nand_dump(nand, off, 0);
 315
 316                 return ret == 0 ? 1 : 0;
 317
 318         }
 319
 320         /* read write */
 321         if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
 322                 int read;
 323
 324                 if (argc < 4)
 325                         goto usage;
 326
 327                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
 328
 329                 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
 330                 printf("\nNAND %s: ", read ? "read" : "write");
 331                 if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
 332                         return 1;
 333
 334                 s = strchr(cmd, '.');
 335                 if (s != NULL &&
 336                     (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) {
 337                         if (read) {
 338                                 /* read */
 339                                 nand_read_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.quiet = quiet;
 345 /*
 346  *  ! BROKEN !
 347  *
 348  *  TODO: Function must be implemented
 349  *
 350  *                              ret = nand_read_opts(nand, &opts);
 351  */
 352                         } else {
 353                                 /* write */
 354                                 mtd_oob_ops_t opts;
 355                                 memset(&opts, 0, sizeof(opts));
 356                                 opts.datbuf = (u_char*) addr;
 357                                 opts.len = size;
 358                                 opts.ooblen = 64;
 359                                 opts.mode = MTD_OOB_AUTO;
 360                                 ret = nand_write_opts(nand, off, &opts);
 361                         }
 362                 } else if (s != NULL && !strcmp(s, ".oob")) {
 363                         /* out-of-band data */
 364                         mtd_oob_ops_t ops = {
 365                                 .oobbuf = (u8 *)addr,
 366                                 .ooblen = size,
 367                                 .mode = MTD_OOB_RAW
 368                         };
 369
 370                         if (read)
 371                                 ret = nand->read_oob(nand, off, &ops);
 372                         else
 373                                 ret = nand->write_oob(nand, off, &ops);
 374                 } else {
 375                         if (read)
 376                                 ret = nand_read(nand, off, &size, (u_char *)addr);
 377                         else
 378                                 ret = nand_write(nand, off, &size, (u_char *)addr);
 379                 }
 380
 381                 printf(" %d bytes %s: %s\n", size,
 382                        read ? "read" : "written", ret ? "ERROR" : "OK");
 383
 384                 return ret == 0 ? 0 : 1;
 385         }
 386
 387         if (strcmp(cmd, "markbad") == 0) {
 388                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
 389
 390                 int ret = nand->block_markbad(nand, addr);
 391                 if (ret == 0) {
 392                         printf("block 0x%08lx successfully marked as bad\n",
 393                                (ulong) addr);
 394                         return 0;
 395                 } else {
 396                         printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
 397                                (ulong) addr, ret);
 398                 }
 399                 return 1;
 400         }
 401         if (strcmp(cmd, "biterr") == 0) {
 402                 /* todo */
 403                 return 1;
 404         }
 405
 406         if (strcmp(cmd, "lock") == 0) {
 407                 int tight  = 0;
 408                 int status = 0;
 409                 if (argc == 3) {
 410                         if (!strcmp("tight", argv[2]))
 411                                 tight = 1;
 412                         if (!strcmp("status", argv[2]))
 413                                 status = 1;
 414                 }
 415 /*
 416  * ! BROKEN !
 417  *
 418  * TODO: must be implemented and tested by someone with HW
 419  */
 420 #if 0
 421                 if (status) {
 422                         ulong block_start = 0;
 423                         ulong off;
 424                         int last_status = -1;
 425
 426                         struct nand_chip *nand_chip = nand->priv;
 427                         /* check the WP bit */
 428                         nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1);
 429                         printf("device is %swrite protected\n",
 430                                (nand_chip->read_byte(nand) & 0x80 ?
 431                                "NOT " : ""));
 432
 433                         for (off = 0; off < nand->size; off += nand->writesize) {
 434                                 int s = nand_get_lock_status(nand, off);
 435
 436                                 /* print message only if status has changed
 437                                  * or at end of chip
 438                                  */
 439                                 if (off == nand->size - nand->writesize
 440                                     || (s != last_status && off != 0))  {
 441
 442                                         printf("%08lx - %08lx: %8d pages %s%s%s\n",
 443                                                block_start,
 444                                                off-1,
 445                                                (off-block_start)/nand->writesize,
 446                                                ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
 447                                                ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
 448                                                ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
 449                                 }
 450
 451                                 last_status = s;
 452                         }
 453                 } else {
 454                         if (!nand_lock(nand, tight)) {
 455                                 puts("NAND flash successfully locked\n");
 456                         } else {
 457                                 puts("Error locking NAND flash\n");
 458                                 return 1;
 459                         }
 460                 }
 461 #endif
 462                 return 0;
 463         }
 464
 465         if (strcmp(cmd, "unlock") == 0) {
 466                 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
 467                         return 1;
 468
 469 /*
 470  * ! BROKEN !
 471  *
 472  * TODO: must be implemented and tested by someone with HW
 473  */
 474 #if 0
 475                 if (!nand_unlock(nand, off, size)) {
 476                         puts("NAND flash successfully unlocked\n");
 477                 } else {
 478                         puts("Error unlocking NAND flash, "
 479                              "write and erase will probably fail\n");
 480                         return 1;
 481                 }
 482 #endif
 483                 return 0;
 484         }
 485
 486 usage:
 487         printf("Usage:\n%s\n", cmdtp->usage);
 488         return 1;
 489 }
 490
 491 U_BOOT_CMD(nand, 5, 1, do_nand,
 492            "nand - NAND sub-system\n",
 493            "info - show available NAND devices\n"
 494            "nand device [dev] - show or set current device\n"
 495            "nand read[.jffs2] - addr off|partition size\n"
 496            "nand write[.jffs2] - addr off|partition size\n"
 497            "    read/write 'size' bytes starting at offset 'off'\n"
 498            "    to/from memory address 'addr'\n"
 499            "nand erase [clean] [off size] - erase 'size' bytes from\n"
 500            "    offset 'off' (entire device if not specified)\n"
 501            "nand bad - show bad blocks\n"
 502            "nand dump[.oob] off - dump page\n"
 503            "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
 504            "nand markbad off - mark bad block at offset (UNSAFE)\n"
 505            "nand biterr off - make a bit error at offset (UNSAFE)\n"
 506            "nand lock [tight] [status]\n"
 507            "    bring nand to lock state or display locked pages\n"
 508            "nand unlock [offset] [size] - unlock section\n");
 509
 510 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
 511                            ulong offset, ulong addr, char *cmd)
 512 {
 513         int r;
 514         char *ep, *s;
 515         size_t cnt;
 516         image_header_t *hdr;
 517         int jffs2 = 0;
 518 #if defined(CONFIG_FIT)
 519         const void *fit_hdr = NULL;
 520 #endif
 521
 522         s = strchr(cmd, '.');
 523         if (s != NULL &&
 524             (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
 525                 jffs2 = 1;
 526
 527         printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
 528
 529         cnt = nand->writesize;
 530         r = nand_read(nand, offset, &cnt, (u_char *) addr);
 531         if (r) {
 532                 puts("** Read error\n");
 533                 show_boot_progress (-56);
 534                 return 1;
 535         }
 536         show_boot_progress (56);
 537
 538         switch (genimg_get_format ((void *)addr)) {
 539         case IMAGE_FORMAT_LEGACY:
 540                 hdr = (image_header_t *)addr;
 541
 542                 show_boot_progress (57);
 543                 image_print_contents (hdr);
 544
 545                 cnt = image_get_image_size (hdr);
 546                 break;
 547 #if defined(CONFIG_FIT)
 548         case IMAGE_FORMAT_FIT:
 549                 fit_hdr = (const void *)addr;
 550                 puts ("Fit image detected...\n");
 551
 552                 cnt = fit_get_size (fit_hdr);
 553                 break;
 554 #endif
 555         default:
 556                 show_boot_progress (-57);
 557                 puts ("** Unknown image type\n");
 558                 return 1;
 559         }
 560         show_boot_progress (57);
 561
 562         r = nand_read(nand, offset, &cnt, (u_char *) addr);
 563         if (r) {
 564                 puts("** Read error\n");
 565                 show_boot_progress (-58);
 566                 return 1;
 567         }
 568         show_boot_progress (58);
 569
 570 #if defined(CONFIG_FIT)
 571         /* This cannot be done earlier, we need complete FIT image in RAM first */
 572         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
 573                 if (!fit_check_format (fit_hdr)) {
 574                         show_boot_progress (-150);
 575                         puts ("** Bad FIT image format\n");
 576                         return 1;
 577                 }
 578                 show_boot_progress (151);
 579                 fit_print_contents (fit_hdr);
 580         }
 581 #endif
 582
 583         /* Loading ok, update default load address */
 584
 585         load_addr = addr;
 586
 587         /* Check if we should attempt an auto-start */
 588         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
 589                 char *local_args[2];
 590                 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
 591
 592                 local_args[0] = cmd;
 593                 local_args[1] = NULL;
 594
 595                 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
 596
 597                 do_bootm(cmdtp, 0, 1, local_args);
 598                 return 1;
 599         }
 600         return 0;
 601 }
 602
 603 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 604 {
 605         char *boot_device = NULL;
 606         int idx;
 607         ulong addr, offset = 0;
 608 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 609         struct mtd_device *dev;
 610         struct part_info *part;
 611         u8 pnum;
 612
 613         if (argc >= 2) {
 614                 char *p = (argc == 2) ? argv[1] : argv[2];
 615                 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
 616                     (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
 617                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 618                                 puts("Not a NAND device\n");
 619                                 return 1;
 620                         }
 621                         if (argc > 3)
 622                                 goto usage;
 623                         if (argc == 3)
 624                                 addr = simple_strtoul(argv[1], NULL, 16);
 625                         else
 626                                 addr = CFG_LOAD_ADDR;
 627                         return nand_load_image(cmdtp, &nand_info[dev->id->num],
 628                                                part->offset, addr, argv[0]);
 629                 }
 630         }
 631 #endif
 632
 633         show_boot_progress(52);
 634         switch (argc) {
 635         case 1:
 636                 addr = CFG_LOAD_ADDR;
 637                 boot_device = getenv("bootdevice");
 638                 break;
 639         case 2:
 640                 addr = simple_strtoul(argv[1], NULL, 16);
 641                 boot_device = getenv("bootdevice");
 642                 break;
 643         case 3:
 644                 addr = simple_strtoul(argv[1], NULL, 16);
 645                 boot_device = argv[2];
 646                 break;
 647         case 4:
 648                 addr = simple_strtoul(argv[1], NULL, 16);
 649                 boot_device = argv[2];
 650                 offset = simple_strtoul(argv[3], NULL, 16);
 651                 break;
 652         default:
 653 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 654 usage:
 655 #endif
 656                 printf("Usage:\n%s\n", cmdtp->usage);
 657                 show_boot_progress(-53);
 658                 return 1;
 659         }
 660
 661         show_boot_progress(53);
 662         if (!boot_device) {
 663                 puts("\n** No boot device **\n");
 664                 show_boot_progress(-54);
 665                 return 1;
 666         }
 667         show_boot_progress(54);
 668
 669         idx = simple_strtoul(boot_device, NULL, 16);
 670
 671         if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
 672                 printf("\n** Device %d not available\n", idx);
 673                 show_boot_progress(-55);
 674                 return 1;
 675         }
 676         show_boot_progress(55);
 677
 678         return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
 679 }
 680
 681 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
 682         "nboot   - boot from NAND device\n",
 683         "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
 684
 685 #endif
 686
 687 #else /* CFG_NAND_LEGACY */
 688 /*
 689  *
 690  * Legacy NAND support - to be phased out
 691  *
 692  */
 693 #include <command.h>
 694 #include <malloc.h>
 695 #include <asm/io.h>
 696 #include <watchdog.h>
 697
 698 #ifdef CONFIG_show_boot_progress
 699 # include <status_led.h>
 700 # define show_boot_progress(arg)        show_boot_progress(arg)
 701 #else
 702 # define show_boot_progress(arg)
 703 #endif
 704
 705 #if defined(CONFIG_CMD_NAND)
 706 #include <linux/mtd/nand_legacy.h>
 707 #if 0
 708 #include <linux/mtd/nand_ids.h>
 709 #include <jffs2/jffs2.h>
 710 #endif
 711
 712 #ifdef CONFIG_OMAP1510
 713 void archflashwp(void *archdata, int wp);
 714 #endif
 715
 716 #define ROUND_DOWN(value,boundary)      ((value) & (~((boundary)-1)))
 717
 718 #undef  NAND_DEBUG
 719 #undef  PSYCHO_DEBUG
 720
 721 /* ****************** WARNING *********************
 722  * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
 723  * erase (or at least attempt to erase) blocks that are marked
 724  * bad. This can be very handy if you are _sure_ that the block
 725  * is OK, say because you marked a good block bad to test bad
 726  * block handling and you are done testing, or if you have
 727  * accidentally marked blocks bad.
 728  *
 729  * Erasing factory marked bad blocks is a _bad_ idea. If the
 730  * erase succeeds there is no reliable way to find them again,
 731  * and attempting to program or erase bad blocks can affect
 732  * the data in _other_ (good) blocks.
 733  */
 734 #define  ALLOW_ERASE_BAD_DEBUG 0
 735
 736 #define CONFIG_MTD_NAND_ECC  /* enable ECC */
 737 #define CONFIG_MTD_NAND_ECC_JFFS2
 738
 739 /* bits for nand_legacy_rw() `cmd'; or together as needed */
 740 #define NANDRW_READ         0x01
 741 #define NANDRW_WRITE        0x00
 742 #define NANDRW_JFFS2        0x02
 743 #define NANDRW_JFFS2_SKIP   0x04
 744
 745 /*
 746  * Imports from nand_legacy.c
 747  */
 748 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
 749 extern int curr_device;
 750 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
 751                             size_t len, int clean);
 752 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
 753                          size_t len, size_t *retlen, u_char *buf);
 754 extern void nand_print(struct nand_chip *nand);
 755 extern void nand_print_bad(struct nand_chip *nand);
 756 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
 757                                size_t len, size_t *retlen, u_char *buf);
 758 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
 759                                 size_t len, size_t *retlen, const u_char *buf);
 760
 761
 762 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 763 {
 764         int rcode = 0;
 765
 766         switch (argc) {
 767         case 0:
 768         case 1:
 769                 printf ("Usage:\n%s\n", cmdtp->usage);
 770                 return 1;
 771         case 2:
 772                 if (strcmp (argv[1], "info") == 0) {
 773                         int i;
 774
 775                         putc ('\n');
 776
 777                         for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
 778                                 if (nand_dev_desc[i].ChipID ==
 779                                     NAND_ChipID_UNKNOWN)
 780                                         continue;       /* list only known devices */
 781                                 printf ("Device %d: ", i);
 782                                 nand_print (&nand_dev_desc[i]);
 783                         }
 784                         return 0;
 785
 786                 } else if (strcmp (argv[1], "device") == 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: ", curr_device);
 793                         nand_print (&nand_dev_desc[curr_device]);
 794                         return 0;
 795
 796                 } else if (strcmp (argv[1], "bad") == 0) {
 797                         if ((curr_device < 0)
 798                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 799                                 puts ("\nno devices available\n");
 800                                 return 1;
 801                         }
 802                         printf ("\nDevice %d bad blocks:\n", curr_device);
 803                         nand_print_bad (&nand_dev_desc[curr_device]);
 804                         return 0;
 805
 806                 }
 807                 printf ("Usage:\n%s\n", cmdtp->usage);
 808                 return 1;
 809         case 3:
 810                 if (strcmp (argv[1], "device") == 0) {
 811                         int dev = (int) simple_strtoul (argv[2], NULL, 10);
 812
 813                         printf ("\nDevice %d: ", dev);
 814                         if (dev >= CFG_MAX_NAND_DEVICE) {
 815                                 puts ("unknown device\n");
 816                                 return 1;
 817                         }
 818                         nand_print (&nand_dev_desc[dev]);
 819                         /*nand_print (dev); */
 820
 821                         if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
 822                                 return 1;
 823                         }
 824
 825                         curr_device = dev;
 826
 827                         puts ("... is now current device\n");
 828
 829                         return 0;
 830                 } else if (strcmp (argv[1], "erase") == 0
 831                            && strcmp (argv[2], "clean") == 0) {
 832                         struct nand_chip *nand = &nand_dev_desc[curr_device];
 833                         ulong off = 0;
 834                         ulong size = nand->totlen;
 835                         int ret;
 836
 837                         printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
 838
 839                         ret = nand_legacy_erase (nand, off, size, 1);
 840
 841                         printf ("%s\n", ret ? "ERROR" : "OK");
 842
 843                         return ret;
 844                 }
 845
 846                 printf ("Usage:\n%s\n", cmdtp->usage);
 847                 return 1;
 848         default:
 849                 /* at least 4 args */
 850
 851                 if (strncmp (argv[1], "read", 4) == 0 ||
 852                     strncmp (argv[1], "write", 5) == 0) {
 853                         ulong addr = simple_strtoul (argv[2], NULL, 16);
 854                         off_t off = simple_strtoul (argv[3], NULL, 16);
 855                         size_t size = simple_strtoul (argv[4], NULL, 16);
 856                         int cmd = (strncmp (argv[1], "read", 4) == 0) ?
 857                                   NANDRW_READ : NANDRW_WRITE;
 858                         size_t total;
 859                         int ret;
 860                         char *cmdtail = strchr (argv[1], '.');
 861
 862                         if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
 863                                 /* read out-of-band data */
 864                                 if (cmd & NANDRW_READ) {
 865                                         ret = nand_read_oob (nand_dev_desc + curr_device,
 866                                                              off, size, &total,
 867                                                              (u_char *) addr);
 868                                 } else {
 869                                         ret = nand_write_oob (nand_dev_desc + curr_device,
 870                                                               off, size, &total,
 871                                                               (u_char *) addr);
 872                                 }
 873                                 return ret;
 874                         } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
 875                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 876                         else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
 877                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 878                                 if (cmd & NANDRW_READ)
 879                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 880                         }
 881 #ifdef SXNI855T
 882                         /* need ".e" same as ".j" for compatibility with older units */
 883                         else if (cmdtail && !strcmp (cmdtail, ".e"))
 884                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 885 #endif
 886 #ifdef CFG_NAND_SKIP_BAD_DOT_I
 887                         /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
 888                         /* ".i" for image -> read skips bad block (no 0xff) */
 889                         else if (cmdtail && !strcmp (cmdtail, ".i")) {
 890                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 891                                 if (cmd & NANDRW_READ)
 892                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 893                         }
 894 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
 895                         else if (cmdtail) {
 896                                 printf ("Usage:\n%s\n", cmdtp->usage);
 897                                 return 1;
 898                         }
 899
 900                         printf ("\nNAND %s: device %d offset %ld, size %lu ...\n",
 901                                 (cmd & NANDRW_READ) ? "read" : "write",
 902                                 curr_device, off, (ulong)size);
 903
 904                         ret = nand_legacy_rw (nand_dev_desc + curr_device,
 905                                               cmd, off, size,
 906                                               &total, (u_char *) addr);
 907
 908                         printf (" %d bytes %s: %s\n", total,
 909                                 (cmd & NANDRW_READ) ? "read" : "written",
 910                                 ret ? "ERROR" : "OK");
 911
 912                         return ret;
 913                 } else if (strcmp (argv[1], "erase") == 0 &&
 914                            (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
 915                         int clean = argc == 5;
 916                         ulong off =
 917                                 simple_strtoul (argv[2 + clean], NULL, 16);
 918                         ulong size =
 919                                 simple_strtoul (argv[3 + clean], NULL, 16);
 920                         int ret;
 921
 922                         printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
 923                                 curr_device, off, size);
 924
 925                         ret = nand_legacy_erase (nand_dev_desc + curr_device,
 926                                                  off, size, clean);
 927
 928                         printf ("%s\n", ret ? "ERROR" : "OK");
 929
 930                         return ret;
 931                 } else {
 932                         printf ("Usage:\n%s\n", cmdtp->usage);
 933                         rcode = 1;
 934                 }
 935
 936                 return rcode;
 937         }
 938 }
 939
 940 U_BOOT_CMD(
 941         nand,   5,      1,      do_nand,
 942         "nand    - legacy NAND sub-system\n",
 943         "info  - show available NAND devices\n"
 944         "nand device [dev] - show or set current device\n"
 945         "nand read[.jffs2[s]]  addr off size\n"
 946         "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
 947         "    at offset `off' to/from memory address `addr'\n"
 948         "nand erase [clean] [off size] - erase `size' bytes from\n"
 949         "    offset `off' (entire device if not specified)\n"
 950         "nand bad - show bad blocks\n"
 951         "nand read.oob addr off size - read out-of-band data\n"
 952         "nand write.oob addr off size - read out-of-band data\n"
 953 );
 954
 955 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 956 {
 957         char *boot_device = NULL;
 958         char *ep;
 959         int dev;
 960         ulong cnt;
 961         ulong addr;
 962         ulong offset = 0;
 963         image_header_t *hdr;
 964         int rcode = 0;
 965 #if defined(CONFIG_FIT)
 966         const void *fit_hdr = NULL;
 967 #endif
 968
 969         show_boot_progress (52);
 970         switch (argc) {
 971         case 1:
 972                 addr = CFG_LOAD_ADDR;
 973                 boot_device = getenv ("bootdevice");
 974                 break;
 975         case 2:
 976                 addr = simple_strtoul(argv[1], NULL, 16);
 977                 boot_device = getenv ("bootdevice");
 978                 break;
 979         case 3:
 980                 addr = simple_strtoul(argv[1], NULL, 16);
 981                 boot_device = argv[2];
 982                 break;
 983         case 4:
 984                 addr = simple_strtoul(argv[1], NULL, 16);
 985                 boot_device = argv[2];
 986                 offset = simple_strtoul(argv[3], NULL, 16);
 987                 break;
 988         default:
 989                 printf ("Usage:\n%s\n", cmdtp->usage);
 990                 show_boot_progress (-53);
 991                 return 1;
 992         }
 993
 994         show_boot_progress (53);
 995         if (!boot_device) {
 996                 puts ("\n** No boot device **\n");
 997                 show_boot_progress (-54);
 998                 return 1;
 999         }
1000         show_boot_progress (54);
1001
1002         dev = simple_strtoul(boot_device, &ep, 16);
1003
1004         if ((dev >= CFG_MAX_NAND_DEVICE) ||
1005             (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
1006                 printf ("\n** Device %d not available\n", dev);
1007                 show_boot_progress (-55);
1008                 return 1;
1009         }
1010         show_boot_progress (55);
1011
1012         printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1013             dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
1014             offset);
1015
1016         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
1017                             SECTORSIZE, NULL, (u_char *)addr)) {
1018                 printf ("** Read error on %d\n", dev);
1019                 show_boot_progress (-56);
1020                 return 1;
1021         }
1022         show_boot_progress (56);
1023
1024         switch (genimg_get_format ((void *)addr)) {
1025         case IMAGE_FORMAT_LEGACY:
1026                 hdr = (image_header_t *)addr;
1027                 image_print_contents (hdr);
1028
1029                 cnt = image_get_image_size (hdr);
1030                 cnt -= SECTORSIZE;
1031                 break;
1032 #if defined(CONFIG_FIT)
1033         case IMAGE_FORMAT_FIT:
1034                 fit_hdr = (const void *)addr;
1035                 puts ("Fit image detected...\n");
1036
1037                 cnt = fit_get_size (fit_hdr);
1038                 break;
1039 #endif
1040         default:
1041                 show_boot_progress (-57);
1042                 puts ("** Unknown image type\n");
1043                 return 1;
1044         }
1045         show_boot_progress (57);
1046
1047         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
1048                             offset + SECTORSIZE, cnt, NULL,
1049                             (u_char *)(addr+SECTORSIZE))) {
1050                 printf ("** Read error on %d\n", dev);
1051                 show_boot_progress (-58);
1052                 return 1;
1053         }
1054         show_boot_progress (58);
1055
1056 #if defined(CONFIG_FIT)
1057         /* This cannot be done earlier, we need complete FIT image in RAM first */
1058         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
1059                 if (!fit_check_format (fit_hdr)) {
1060                         show_boot_progress (-150);
1061                         puts ("** Bad FIT image format\n");
1062                         return 1;
1063                 }
1064                 show_boot_progress (151);
1065                 fit_print_contents (fit_hdr);
1066         }
1067 #endif
1068
1069         /* Loading ok, update default load address */
1070
1071         load_addr = addr;
1072
1073         /* Check if we should attempt an auto-start */
1074         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1075                 char *local_args[2];
1076                 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1077
1078                 local_args[0] = argv[0];
1079                 local_args[1] = NULL;
1080
1081                 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1082
1083                 do_bootm (cmdtp, 0, 1, local_args);
1084                 rcode = 1;
1085         }
1086         return rcode;
1087 }
1088
1089 U_BOOT_CMD(
1090         nboot,  4,      1,      do_nandboot,
1091         "nboot   - boot from NAND device\n",
1092         "loadAddr dev\n"
1093 );
1094
1095 #endif
1096
1097 #endif /* CFG_NAND_LEGACY */