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_oob(nand_info_t *nand, ulong off)
  42 {
  43         return 0;
  44 }
  45
  46 static int nand_dump(nand_info_t *nand, ulong off)
  47 {
  48         int i;
  49         u_char *buf, *p;
  50
  51         buf = malloc(nand->writesize + nand->oobsize);
  52         if (!buf) {
  53                 puts("No memory for page buffer\n");
  54                 return 1;
  55         }
  56         off &= ~(nand->writesize - 1);
  57         size_t dummy;
  58         loff_t addr = (loff_t) off;
  59         i = nand->read(nand, addr, nand->writesize, &dummy, buf);
  60         if (i < 0) {
  61                 printf("Error (%d) reading page %08lx\n", i, off);
  62                 free(buf);
  63                 return 1;
  64         }
  65         printf("Page %08lx dump:\n", off);
  66         i = nand->writesize >> 4; p = buf;
  67         while (i--) {
  68                 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
  69                        "  %02x %02x %02x %02x %02x %02x %02x %02x\n",
  70                        p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
  71                        p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
  72                 p += 16;
  73         }
  74         puts("OOB:\n");
  75         i = nand->oobsize >> 3;
  76         while (i--) {
  77                 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
  78                        p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
  79                 p += 8;
  80         }
  81         free(buf);
  82
  83         return 0;
  84 }
  85
  86 /* ------------------------------------------------------------------------- */
  87
  88 static inline int str2long(char *p, ulong *num)
  89 {
  90         char *endptr;
  91
  92         *num = simple_strtoul(p, &endptr, 16);
  93         return (*p != '\0' && *endptr == '\0') ? 1 : 0;
  94 }
  95
  96 static int
  97 arg_off_size(int argc, char *argv[], nand_info_t *nand, ulong *off, size_t *size)
  98 {
  99         int idx = nand_curr_device;
 100 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 101         struct mtd_device *dev;
 102         struct part_info *part;
 103         u8 pnum;
 104
 105         if (argc >= 1 && !(str2long(argv[0], off))) {
 106                 if ((mtdparts_init() == 0) &&
 107                     (find_dev_and_part(argv[0], &dev, &pnum, &part) == 0)) {
 108                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 109                                 puts("not a NAND device\n");
 110                                 return -1;
 111                         }
 112                         *off = part->offset;
 113                         if (argc >= 2) {
 114                                 if (!(str2long(argv[1], (ulong *)size))) {
 115                                         printf("'%s' is not a number\n", argv[1]);
 116                                         return -1;
 117                                 }
 118                                 if (*size > part->size)
 119                                         *size = part->size;
 120                         } else {
 121                                 *size = part->size;
 122                         }
 123                         idx = dev->id->num;
 124                         *nand = nand_info[idx];
 125                         goto out;
 126                 }
 127         }
 128 #endif
 129
 130         if (argc >= 1) {
 131                 if (!(str2long(argv[0], off))) {
 132                         printf("'%s' is not a number\n", argv[0]);
 133                         return -1;
 134                 }
 135         } else {
 136                 *off = 0;
 137         }
 138
 139         if (argc >= 2) {
 140                 if (!(str2long(argv[1], (ulong *)size))) {
 141                         printf("'%s' is not a number\n", argv[1]);
 142                         return -1;
 143                 }
 144         } else {
 145                 *size = nand->size - *off;
 146         }
 147
 148 #if  defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 149 out:
 150 #endif
 151         printf("device %d ", idx);
 152         if (*size == nand->size)
 153                 puts("whole chip\n");
 154         else
 155                 printf("offset 0x%lx, size 0x%x\n", *off, *size);
 156         return 0;
 157 }
 158
 159 int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 160 {
 161         int i, dev, ret = 0;
 162         ulong addr, off;
 163         size_t size;
 164         char *cmd, *s;
 165         nand_info_t *nand;
 166 #ifdef CFG_NAND_QUIET
 167         int quiet = CFG_NAND_QUIET;
 168 #else
 169         int quiet = 0;
 170 #endif
 171         const char *quiet_str = getenv("quiet");
 172
 173         /* at least two arguments please */
 174         if (argc < 2)
 175                 goto usage;
 176
 177         if (quiet_str)
 178                 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
 179
 180         cmd = argv[1];
 181
 182         if (strcmp(cmd, "info") == 0) {
 183
 184                 putc('\n');
 185                 for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
 186                         if (nand_info[i].name)
 187                                 printf("Device %d: %s, sector size %u KiB\n",
 188                                        i, nand_info[i].name,
 189                                        nand_info[i].erasesize >> 10);
 190                 }
 191                 return 0;
 192         }
 193
 194         if (strcmp(cmd, "device") == 0) {
 195
 196                 if (argc < 3) {
 197                         if ((nand_curr_device < 0) ||
 198                             (nand_curr_device >= CFG_MAX_NAND_DEVICE))
 199                                 puts("\nno devices available\n");
 200                         else
 201                                 printf("\nDevice %d: %s\n", nand_curr_device,
 202                                        nand_info[nand_curr_device].name);
 203                         return 0;
 204                 }
 205                 dev = (int)simple_strtoul(argv[2], NULL, 10);
 206                 if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) {
 207                         puts("No such device\n");
 208                         return 1;
 209                 }
 210                 printf("Device %d: %s", dev, nand_info[dev].name);
 211                 puts("... is now current device\n");
 212                 nand_curr_device = dev;
 213
 214 #ifdef CFG_NAND_SELECT_DEVICE
 215                 /*
 216                  * Select the chip in the board/cpu specific driver
 217                  */
 218                 board_nand_select_device(nand_info[dev].priv, dev);
 219 #endif
 220
 221                 return 0;
 222         }
 223
 224         if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 &&
 225             strncmp(cmd, "dump", 4) != 0 &&
 226             strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 &&
 227             strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 &&
 228             strcmp(cmd, "biterr") != 0 &&
 229             strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 )
 230                 goto usage;
 231
 232         /* the following commands operate on the current device */
 233         if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE ||
 234             !nand_info[nand_curr_device].name) {
 235                 puts("\nno devices available\n");
 236                 return 1;
 237         }
 238         nand = &nand_info[nand_curr_device];
 239
 240         if (strcmp(cmd, "bad") == 0) {
 241                 printf("\nDevice %d bad blocks:\n", nand_curr_device);
 242                 for (off = 0; off < nand->size; off += nand->erasesize)
 243                         if (nand_block_isbad(nand, off))
 244                                 printf("  %08lx\n", off);
 245                 return 0;
 246         }
 247
 248         /*
 249          * Syntax is:
 250          *   0    1     2       3    4
 251          *   nand erase [clean] [off size]
 252          */
 253         if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) {
 254                 nand_erase_options_t opts;
 255                 /* "clean" at index 2 means request to write cleanmarker */
 256                 int clean = argc > 2 && !strcmp("clean", argv[2]);
 257                 int o = clean ? 3 : 2;
 258                 int scrub = !strcmp(cmd, "scrub");
 259
 260                 printf("\nNAND %s: ", scrub ? "scrub" : "erase");
 261                 /* skip first two or three arguments, look for offset and size */
 262                 if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
 263                         return 1;
 264
 265                 memset(&opts, 0, sizeof(opts));
 266                 opts.offset = off;
 267                 opts.length = size;
 268                 opts.jffs2  = clean;
 269                 opts.quiet  = quiet;
 270
 271                 if (scrub) {
 272                         puts("Warning: "
 273                              "scrub option will erase all factory set "
 274                              "bad blocks!\n"
 275                              "         "
 276                              "There is no reliable way to recover them.\n"
 277                              "         "
 278                              "Use this command only for testing purposes "
 279                              "if you\n"
 280                              "         "
 281                              "are sure of what you are doing!\n"
 282                              "\nReally scrub this NAND flash? <y/N>\n");
 283
 284                         if (getc() == 'y' && getc() == '\r') {
 285                                 opts.scrub = 1;
 286                         } else {
 287                                 puts("scrub aborted\n");
 288                                 return -1;
 289                         }
 290                 }
 291                 ret = nand_erase_opts(nand, &opts);
 292                 printf("%s\n", ret ? "ERROR" : "OK");
 293
 294                 return ret == 0 ? 0 : 1;
 295         }
 296
 297         if (strncmp(cmd, "dump", 4) == 0) {
 298                 if (argc < 3)
 299                         goto usage;
 300
 301                 s = strchr(cmd, '.');
 302                 off = (int)simple_strtoul(argv[2], NULL, 16);
 303
 304                 if (s != NULL && strcmp(s, ".oob") == 0)
 305                         ret = nand_dump_oob(nand, off);
 306                 else
 307                         ret = nand_dump(nand, off);
 308
 309                 return ret == 0 ? 1 : 0;
 310
 311         }
 312
 313         /* read write */
 314         if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
 315                 int read;
 316
 317                 if (argc < 4)
 318                         goto usage;
 319
 320                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
 321
 322                 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
 323                 printf("\nNAND %s: ", read ? "read" : "write");
 324                 if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
 325                         return 1;
 326
 327                 s = strchr(cmd, '.');
 328                 if (s != NULL &&
 329                     (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) {
 330                         if (read) {
 331                                 /* read */
 332                                 nand_read_options_t opts;
 333                                 memset(&opts, 0, sizeof(opts));
 334                                 opts.buffer = (u_char*) addr;
 335                                 opts.length = size;
 336                                 opts.offset = off;
 337                                 opts.quiet = quiet;
 338 /*
 339  *  ! BROKEN !
 340  *
 341  *  TODO: Function must be implemented
 342  *
 343  *                              ret = nand_read_opts(nand, &opts);
 344  */
 345                         } else {
 346                                 /* write */
 347                                 mtd_oob_ops_t opts;
 348                                 memset(&opts, 0, sizeof(opts));
 349                                 opts.datbuf = (u_char*) addr;
 350                                 opts.len = size;
 351                                 opts.ooblen = 64;
 352                                 opts.mode = MTD_OOB_AUTO;
 353                                 ret = nand_write_opts(nand, off, &opts);
 354                         }
 355                 } else if (s != NULL && !strcmp(s, ".oob")) {
 356                         /* out-of-band data */
 357                         mtd_oob_ops_t ops = {
 358                                 .oobbuf = (u8 *)addr,
 359                                 .ooblen = size,
 360                                 .mode = MTD_OOB_RAW
 361                         };
 362
 363                         if (read)
 364                                 ret = nand->read_oob(nand, off, &ops);
 365                         else
 366                                 ret = nand->write_oob(nand, off, &ops);
 367                 } else {
 368                         if (read)
 369                                 ret = nand_read(nand, off, &size, (u_char *)addr);
 370                         else
 371                                 ret = nand_write(nand, off, &size, (u_char *)addr);
 372                 }
 373
 374                 printf(" %d bytes %s: %s\n", size,
 375                        read ? "read" : "written", ret ? "ERROR" : "OK");
 376
 377                 return ret == 0 ? 0 : 1;
 378         }
 379
 380         if (strcmp(cmd, "markbad") == 0) {
 381                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
 382
 383                 int ret = nand->block_markbad(nand, addr);
 384                 if (ret == 0) {
 385                         printf("block 0x%08lx successfully marked as bad\n",
 386                                (ulong) addr);
 387                         return 0;
 388                 } else {
 389                         printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
 390                                (ulong) addr, ret);
 391                 }
 392                 return 1;
 393         }
 394         if (strcmp(cmd, "biterr") == 0) {
 395                 /* todo */
 396                 return 1;
 397         }
 398
 399         if (strcmp(cmd, "lock") == 0) {
 400                 int tight  = 0;
 401                 int status = 0;
 402                 if (argc == 3) {
 403                         if (!strcmp("tight", argv[2]))
 404                                 tight = 1;
 405                         if (!strcmp("status", argv[2]))
 406                                 status = 1;
 407                 }
 408 /*
 409  * ! BROKEN !
 410  *
 411  * TODO: must be implemented and tested by someone with HW
 412  */
 413 #if 0
 414                 if (status) {
 415                         ulong block_start = 0;
 416                         ulong off;
 417                         int last_status = -1;
 418
 419                         struct nand_chip *nand_chip = nand->priv;
 420                         /* check the WP bit */
 421                         nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1);
 422                         printf("device is %swrite protected\n",
 423                                (nand_chip->read_byte(nand) & 0x80 ?
 424                                "NOT " : ""));
 425
 426                         for (off = 0; off < nand->size; off += nand->writesize) {
 427                                 int s = nand_get_lock_status(nand, off);
 428
 429                                 /* print message only if status has changed
 430                                  * or at end of chip
 431                                  */
 432                                 if (off == nand->size - nand->writesize
 433                                     || (s != last_status && off != 0))  {
 434
 435                                         printf("%08lx - %08lx: %8d pages %s%s%s\n",
 436                                                block_start,
 437                                                off-1,
 438                                                (off-block_start)/nand->writesize,
 439                                                ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
 440                                                ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
 441                                                ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
 442                                 }
 443
 444                                 last_status = s;
 445                         }
 446                 } else {
 447                         if (!nand_lock(nand, tight)) {
 448                                 puts("NAND flash successfully locked\n");
 449                         } else {
 450                                 puts("Error locking NAND flash\n");
 451                                 return 1;
 452                         }
 453                 }
 454 #endif
 455                 return 0;
 456         }
 457
 458         if (strcmp(cmd, "unlock") == 0) {
 459                 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
 460                         return 1;
 461
 462 /*
 463  * ! BROKEN !
 464  *
 465  * TODO: must be implemented and tested by someone with HW
 466  */
 467 #if 0
 468                 if (!nand_unlock(nand, off, size)) {
 469                         puts("NAND flash successfully unlocked\n");
 470                 } else {
 471                         puts("Error unlocking NAND flash, "
 472                              "write and erase will probably fail\n");
 473                         return 1;
 474                 }
 475 #endif
 476                 return 0;
 477         }
 478
 479 usage:
 480         printf("Usage:\n%s\n", cmdtp->usage);
 481         return 1;
 482 }
 483
 484 U_BOOT_CMD(nand, 5, 1, do_nand,
 485            "nand - NAND sub-system\n",
 486            "info - show available NAND devices\n"
 487            "nand device [dev] - show or set current device\n"
 488            "nand read[.jffs2] - addr off|partition size\n"
 489            "nand write[.jffs2] - addr off|partition size\n"
 490            "    read/write 'size' bytes starting at offset 'off'\n"
 491            "    to/from memory address 'addr'\n"
 492            "nand erase [clean] [off size] - erase 'size' bytes from\n"
 493            "    offset 'off' (entire device if not specified)\n"
 494            "nand bad - show bad blocks\n"
 495            "nand dump[.oob] off - dump page\n"
 496            "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
 497            "nand markbad off - mark bad block at offset (UNSAFE)\n"
 498            "nand biterr off - make a bit error at offset (UNSAFE)\n"
 499            "nand lock [tight] [status]\n"
 500            "    bring nand to lock state or display locked pages\n"
 501            "nand unlock [offset] [size] - unlock section\n");
 502
 503 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
 504                            ulong offset, ulong addr, char *cmd)
 505 {
 506         int r;
 507         char *ep, *s;
 508         size_t cnt;
 509         image_header_t *hdr;
 510         int jffs2 = 0;
 511 #if defined(CONFIG_FIT)
 512         const void *fit_hdr = NULL;
 513 #endif
 514
 515         s = strchr(cmd, '.');
 516         if (s != NULL &&
 517             (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
 518                 jffs2 = 1;
 519
 520         printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
 521
 522         cnt = nand->writesize;
 523         r = nand_read(nand, offset, &cnt, (u_char *) addr);
 524         if (r) {
 525                 puts("** Read error\n");
 526                 show_boot_progress (-56);
 527                 return 1;
 528         }
 529         show_boot_progress (56);
 530
 531         switch (genimg_get_format ((void *)addr)) {
 532         case IMAGE_FORMAT_LEGACY:
 533                 hdr = (image_header_t *)addr;
 534
 535                 show_boot_progress (57);
 536                 image_print_contents (hdr);
 537
 538                 cnt = image_get_image_size (hdr);
 539                 break;
 540 #if defined(CONFIG_FIT)
 541         case IMAGE_FORMAT_FIT:
 542                 fit_hdr = (const void *)addr;
 543                 puts ("Fit image detected...\n");
 544
 545                 cnt = fit_get_size (fit_hdr);
 546                 break;
 547 #endif
 548         default:
 549                 show_boot_progress (-57);
 550                 puts ("** Unknown image type\n");
 551                 return 1;
 552         }
 553         show_boot_progress (57);
 554
 555         r = nand_read(nand, offset, &cnt, (u_char *) addr);
 556         if (r) {
 557                 puts("** Read error\n");
 558                 show_boot_progress (-58);
 559                 return 1;
 560         }
 561         show_boot_progress (58);
 562
 563 #if defined(CONFIG_FIT)
 564         /* This cannot be done earlier, we need complete FIT image in RAM first */
 565         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
 566                 if (!fit_check_format (fit_hdr)) {
 567                         show_boot_progress (-150);
 568                         puts ("** Bad FIT image format\n");
 569                         return 1;
 570                 }
 571                 show_boot_progress (151);
 572                 fit_print_contents (fit_hdr);
 573         }
 574 #endif
 575
 576         /* Loading ok, update default load address */
 577
 578         load_addr = addr;
 579
 580         /* Check if we should attempt an auto-start */
 581         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
 582                 char *local_args[2];
 583                 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
 584
 585                 local_args[0] = cmd;
 586                 local_args[1] = NULL;
 587
 588                 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
 589
 590                 do_bootm(cmdtp, 0, 1, local_args);
 591                 return 1;
 592         }
 593         return 0;
 594 }
 595
 596 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 597 {
 598         char *boot_device = NULL;
 599         int idx;
 600         ulong addr, offset = 0;
 601 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 602         struct mtd_device *dev;
 603         struct part_info *part;
 604         u8 pnum;
 605
 606         if (argc >= 2) {
 607                 char *p = (argc == 2) ? argv[1] : argv[2];
 608                 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
 609                     (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
 610                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 611                                 puts("Not a NAND device\n");
 612                                 return 1;
 613                         }
 614                         if (argc > 3)
 615                                 goto usage;
 616                         if (argc == 3)
 617                                 addr = simple_strtoul(argv[1], NULL, 16);
 618                         else
 619                                 addr = CFG_LOAD_ADDR;
 620                         return nand_load_image(cmdtp, &nand_info[dev->id->num],
 621                                                part->offset, addr, argv[0]);
 622                 }
 623         }
 624 #endif
 625
 626         show_boot_progress(52);
 627         switch (argc) {
 628         case 1:
 629                 addr = CFG_LOAD_ADDR;
 630                 boot_device = getenv("bootdevice");
 631                 break;
 632         case 2:
 633                 addr = simple_strtoul(argv[1], NULL, 16);
 634                 boot_device = getenv("bootdevice");
 635                 break;
 636         case 3:
 637                 addr = simple_strtoul(argv[1], NULL, 16);
 638                 boot_device = argv[2];
 639                 break;
 640         case 4:
 641                 addr = simple_strtoul(argv[1], NULL, 16);
 642                 boot_device = argv[2];
 643                 offset = simple_strtoul(argv[3], NULL, 16);
 644                 break;
 645         default:
 646 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 647 usage:
 648 #endif
 649                 printf("Usage:\n%s\n", cmdtp->usage);
 650                 show_boot_progress(-53);
 651                 return 1;
 652         }
 653
 654         show_boot_progress(53);
 655         if (!boot_device) {
 656                 puts("\n** No boot device **\n");
 657                 show_boot_progress(-54);
 658                 return 1;
 659         }
 660         show_boot_progress(54);
 661
 662         idx = simple_strtoul(boot_device, NULL, 16);
 663
 664         if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
 665                 printf("\n** Device %d not available\n", idx);
 666                 show_boot_progress(-55);
 667                 return 1;
 668         }
 669         show_boot_progress(55);
 670
 671         return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
 672 }
 673
 674 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
 675         "nboot   - boot from NAND device\n",
 676         "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
 677
 678 #endif
 679
 680 #else /* CFG_NAND_LEGACY */
 681 /*
 682  *
 683  * Legacy NAND support - to be phased out
 684  *
 685  */
 686 #include <command.h>
 687 #include <malloc.h>
 688 #include <asm/io.h>
 689 #include <watchdog.h>
 690
 691 #ifdef CONFIG_show_boot_progress
 692 # include <status_led.h>
 693 # define show_boot_progress(arg)        show_boot_progress(arg)
 694 #else
 695 # define show_boot_progress(arg)
 696 #endif
 697
 698 #if defined(CONFIG_CMD_NAND)
 699 #include <linux/mtd/nand_legacy.h>
 700 #if 0
 701 #include <linux/mtd/nand_ids.h>
 702 #include <jffs2/jffs2.h>
 703 #endif
 704
 705 #ifdef CONFIG_OMAP1510
 706 void archflashwp(void *archdata, int wp);
 707 #endif
 708
 709 #define ROUND_DOWN(value,boundary)      ((value) & (~((boundary)-1)))
 710
 711 #undef  NAND_DEBUG
 712 #undef  PSYCHO_DEBUG
 713
 714 /* ****************** WARNING *********************
 715  * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
 716  * erase (or at least attempt to erase) blocks that are marked
 717  * bad. This can be very handy if you are _sure_ that the block
 718  * is OK, say because you marked a good block bad to test bad
 719  * block handling and you are done testing, or if you have
 720  * accidentally marked blocks bad.
 721  *
 722  * Erasing factory marked bad blocks is a _bad_ idea. If the
 723  * erase succeeds there is no reliable way to find them again,
 724  * and attempting to program or erase bad blocks can affect
 725  * the data in _other_ (good) blocks.
 726  */
 727 #define  ALLOW_ERASE_BAD_DEBUG 0
 728
 729 #define CONFIG_MTD_NAND_ECC  /* enable ECC */
 730 #define CONFIG_MTD_NAND_ECC_JFFS2
 731
 732 /* bits for nand_legacy_rw() `cmd'; or together as needed */
 733 #define NANDRW_READ         0x01
 734 #define NANDRW_WRITE        0x00
 735 #define NANDRW_JFFS2        0x02
 736 #define NANDRW_JFFS2_SKIP   0x04
 737
 738 /*
 739  * Imports from nand_legacy.c
 740  */
 741 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
 742 extern int curr_device;
 743 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
 744                             size_t len, int clean);
 745 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
 746                          size_t len, size_t *retlen, u_char *buf);
 747 extern void nand_print(struct nand_chip *nand);
 748 extern void nand_print_bad(struct nand_chip *nand);
 749 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
 750                                size_t len, size_t *retlen, u_char *buf);
 751 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
 752                                 size_t len, size_t *retlen, const u_char *buf);
 753
 754
 755 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 756 {
 757         int rcode = 0;
 758
 759         switch (argc) {
 760         case 0:
 761         case 1:
 762                 printf ("Usage:\n%s\n", cmdtp->usage);
 763                 return 1;
 764         case 2:
 765                 if (strcmp (argv[1], "info") == 0) {
 766                         int i;
 767
 768                         putc ('\n');
 769
 770                         for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
 771                                 if (nand_dev_desc[i].ChipID ==
 772                                     NAND_ChipID_UNKNOWN)
 773                                         continue;       /* list only known devices */
 774                                 printf ("Device %d: ", i);
 775                                 nand_print (&nand_dev_desc[i]);
 776                         }
 777                         return 0;
 778
 779                 } else if (strcmp (argv[1], "device") == 0) {
 780                         if ((curr_device < 0)
 781                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 782                                 puts ("\nno devices available\n");
 783                                 return 1;
 784                         }
 785                         printf ("\nDevice %d: ", curr_device);
 786                         nand_print (&nand_dev_desc[curr_device]);
 787                         return 0;
 788
 789                 } else if (strcmp (argv[1], "bad") == 0) {
 790                         if ((curr_device < 0)
 791                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 792                                 puts ("\nno devices available\n");
 793                                 return 1;
 794                         }
 795                         printf ("\nDevice %d bad blocks:\n", curr_device);
 796                         nand_print_bad (&nand_dev_desc[curr_device]);
 797                         return 0;
 798
 799                 }
 800                 printf ("Usage:\n%s\n", cmdtp->usage);
 801                 return 1;
 802         case 3:
 803                 if (strcmp (argv[1], "device") == 0) {
 804                         int dev = (int) simple_strtoul (argv[2], NULL, 10);
 805
 806                         printf ("\nDevice %d: ", dev);
 807                         if (dev >= CFG_MAX_NAND_DEVICE) {
 808                                 puts ("unknown device\n");
 809                                 return 1;
 810                         }
 811                         nand_print (&nand_dev_desc[dev]);
 812                         /*nand_print (dev); */
 813
 814                         if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
 815                                 return 1;
 816                         }
 817
 818                         curr_device = dev;
 819
 820                         puts ("... is now current device\n");
 821
 822                         return 0;
 823                 } else if (strcmp (argv[1], "erase") == 0
 824                            && strcmp (argv[2], "clean") == 0) {
 825                         struct nand_chip *nand = &nand_dev_desc[curr_device];
 826                         ulong off = 0;
 827                         ulong size = nand->totlen;
 828                         int ret;
 829
 830                         printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
 831
 832                         ret = nand_legacy_erase (nand, off, size, 1);
 833
 834                         printf ("%s\n", ret ? "ERROR" : "OK");
 835
 836                         return ret;
 837                 }
 838
 839                 printf ("Usage:\n%s\n", cmdtp->usage);
 840                 return 1;
 841         default:
 842                 /* at least 4 args */
 843
 844                 if (strncmp (argv[1], "read", 4) == 0 ||
 845                     strncmp (argv[1], "write", 5) == 0) {
 846                         ulong addr = simple_strtoul (argv[2], NULL, 16);
 847                         off_t off = simple_strtoul (argv[3], NULL, 16);
 848                         size_t size = simple_strtoul (argv[4], NULL, 16);
 849                         int cmd = (strncmp (argv[1], "read", 4) == 0) ?
 850                                   NANDRW_READ : NANDRW_WRITE;
 851                         size_t total;
 852                         int ret;
 853                         char *cmdtail = strchr (argv[1], '.');
 854
 855                         if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
 856                                 /* read out-of-band data */
 857                                 if (cmd & NANDRW_READ) {
 858                                         ret = nand_read_oob (nand_dev_desc + curr_device,
 859                                                              off, size, &total,
 860                                                              (u_char *) addr);
 861                                 } else {
 862                                         ret = nand_write_oob (nand_dev_desc + curr_device,
 863                                                               off, size, &total,
 864                                                               (u_char *) addr);
 865                                 }
 866                                 return ret;
 867                         } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
 868                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 869                         else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
 870                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 871                                 if (cmd & NANDRW_READ)
 872                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 873                         }
 874 #ifdef SXNI855T
 875                         /* need ".e" same as ".j" for compatibility with older units */
 876                         else if (cmdtail && !strcmp (cmdtail, ".e"))
 877                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 878 #endif
 879 #ifdef CFG_NAND_SKIP_BAD_DOT_I
 880                         /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
 881                         /* ".i" for image -> read skips bad block (no 0xff) */
 882                         else if (cmdtail && !strcmp (cmdtail, ".i")) {
 883                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 884                                 if (cmd & NANDRW_READ)
 885                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 886                         }
 887 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
 888                         else if (cmdtail) {
 889                                 printf ("Usage:\n%s\n", cmdtp->usage);
 890                                 return 1;
 891                         }
 892
 893                         printf ("\nNAND %s: device %d offset %ld, size %lu ...\n",
 894                                 (cmd & NANDRW_READ) ? "read" : "write",
 895                                 curr_device, off, (ulong)size);
 896
 897                         ret = nand_legacy_rw (nand_dev_desc + curr_device,
 898                                               cmd, off, size,
 899                                               &total, (u_char *) addr);
 900
 901                         printf (" %d bytes %s: %s\n", total,
 902                                 (cmd & NANDRW_READ) ? "read" : "written",
 903                                 ret ? "ERROR" : "OK");
 904
 905                         return ret;
 906                 } else if (strcmp (argv[1], "erase") == 0 &&
 907                            (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
 908                         int clean = argc == 5;
 909                         ulong off =
 910                                 simple_strtoul (argv[2 + clean], NULL, 16);
 911                         ulong size =
 912                                 simple_strtoul (argv[3 + clean], NULL, 16);
 913                         int ret;
 914
 915                         printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
 916                                 curr_device, off, size);
 917
 918                         ret = nand_legacy_erase (nand_dev_desc + curr_device,
 919                                                  off, size, clean);
 920
 921                         printf ("%s\n", ret ? "ERROR" : "OK");
 922
 923                         return ret;
 924                 } else {
 925                         printf ("Usage:\n%s\n", cmdtp->usage);
 926                         rcode = 1;
 927                 }
 928
 929                 return rcode;
 930         }
 931 }
 932
 933 U_BOOT_CMD(
 934         nand,   5,      1,      do_nand,
 935         "nand    - legacy NAND sub-system\n",
 936         "info  - show available NAND devices\n"
 937         "nand device [dev] - show or set current device\n"
 938         "nand read[.jffs2[s]]  addr off size\n"
 939         "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
 940         "    at offset `off' to/from memory address `addr'\n"
 941         "nand erase [clean] [off size] - erase `size' bytes from\n"
 942         "    offset `off' (entire device if not specified)\n"
 943         "nand bad - show bad blocks\n"
 944         "nand read.oob addr off size - read out-of-band data\n"
 945         "nand write.oob addr off size - read out-of-band data\n"
 946 );
 947
 948 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 949 {
 950         char *boot_device = NULL;
 951         char *ep;
 952         int dev;
 953         ulong cnt;
 954         ulong addr;
 955         ulong offset = 0;
 956         image_header_t *hdr;
 957         int rcode = 0;
 958 #if defined(CONFIG_FIT)
 959         const void *fit_hdr = NULL;
 960 #endif
 961
 962         show_boot_progress (52);
 963         switch (argc) {
 964         case 1:
 965                 addr = CFG_LOAD_ADDR;
 966                 boot_device = getenv ("bootdevice");
 967                 break;
 968         case 2:
 969                 addr = simple_strtoul(argv[1], NULL, 16);
 970                 boot_device = getenv ("bootdevice");
 971                 break;
 972         case 3:
 973                 addr = simple_strtoul(argv[1], NULL, 16);
 974                 boot_device = argv[2];
 975                 break;
 976         case 4:
 977                 addr = simple_strtoul(argv[1], NULL, 16);
 978                 boot_device = argv[2];
 979                 offset = simple_strtoul(argv[3], NULL, 16);
 980                 break;
 981         default:
 982                 printf ("Usage:\n%s\n", cmdtp->usage);
 983                 show_boot_progress (-53);
 984                 return 1;
 985         }
 986
 987         show_boot_progress (53);
 988         if (!boot_device) {
 989                 puts ("\n** No boot device **\n");
 990                 show_boot_progress (-54);
 991                 return 1;
 992         }
 993         show_boot_progress (54);
 994
 995         dev = simple_strtoul(boot_device, &ep, 16);
 996
 997         if ((dev >= CFG_MAX_NAND_DEVICE) ||
 998             (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
 999                 printf ("\n** Device %d not available\n", dev);
1000                 show_boot_progress (-55);
1001                 return 1;
1002         }
1003         show_boot_progress (55);
1004
1005         printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1006             dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
1007             offset);
1008
1009         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
1010                             SECTORSIZE, NULL, (u_char *)addr)) {
1011                 printf ("** Read error on %d\n", dev);
1012                 show_boot_progress (-56);
1013                 return 1;
1014         }
1015         show_boot_progress (56);
1016
1017         switch (genimg_get_format ((void *)addr)) {
1018         case IMAGE_FORMAT_LEGACY:
1019                 hdr = (image_header_t *)addr;
1020                 image_print_contents (hdr);
1021
1022                 cnt = image_get_image_size (hdr);
1023                 cnt -= SECTORSIZE;
1024                 break;
1025 #if defined(CONFIG_FIT)
1026         case IMAGE_FORMAT_FIT:
1027                 fit_hdr = (const void *)addr;
1028                 puts ("Fit image detected...\n");
1029
1030                 cnt = fit_get_size (fit_hdr);
1031                 break;
1032 #endif
1033         default:
1034                 show_boot_progress (-57);
1035                 puts ("** Unknown image type\n");
1036                 return 1;
1037         }
1038         show_boot_progress (57);
1039
1040         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
1041                             offset + SECTORSIZE, cnt, NULL,
1042                             (u_char *)(addr+SECTORSIZE))) {
1043                 printf ("** Read error on %d\n", dev);
1044                 show_boot_progress (-58);
1045                 return 1;
1046         }
1047         show_boot_progress (58);
1048
1049 #if defined(CONFIG_FIT)
1050         /* This cannot be done earlier, we need complete FIT image in RAM first */
1051         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
1052                 if (!fit_check_format (fit_hdr)) {
1053                         show_boot_progress (-150);
1054                         puts ("** Bad FIT image format\n");
1055                         return 1;
1056                 }
1057                 show_boot_progress (151);
1058                 fit_print_contents (fit_hdr);
1059         }
1060 #endif
1061
1062         /* Loading ok, update default load address */
1063
1064         load_addr = addr;
1065
1066         /* Check if we should attempt an auto-start */
1067         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1068                 char *local_args[2];
1069                 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1070
1071                 local_args[0] = argv[0];
1072                 local_args[1] = NULL;
1073
1074                 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1075
1076                 do_bootm (cmdtp, 0, 1, local_args);
1077                 rcode = 1;
1078         }
1079         return rcode;
1080 }
1081
1082 U_BOOT_CMD(
1083         nboot,  4,      1,      do_nandboot,
1084         "nboot   - boot from NAND device\n",
1085         "loadAddr dev\n"
1086 );
1087
1088 #endif
1089
1090 #endif /* CFG_NAND_LEGACY */