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