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