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_MTDPARTS)
  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_MTDPARTS)
 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_MTDPARTS)
 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 static void nand_print_info(int idx)
 209 {
 210         nand_info_t *nand = &nand_info[idx];
 211         struct nand_chip *chip = nand->priv;
 212         printf("Device %d: ", idx);
 213         if (chip->numchips > 1)
 214                 printf("%dx ", chip->numchips);
 215         printf("%s, sector size %u KiB\n",
 216                nand->name, nand->erasesize >> 10);
 217 }
 218
 219 int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 220 {
 221         int i, dev, ret = 0;
 222         ulong addr, off;
 223         size_t size;
 224         char *cmd, *s;
 225         nand_info_t *nand;
 226 #ifdef CONFIG_SYS_NAND_QUIET
 227         int quiet = CONFIG_SYS_NAND_QUIET;
 228 #else
 229         int quiet = 0;
 230 #endif
 231         const char *quiet_str = getenv("quiet");
 232
 233         /* at least two arguments please */
 234         if (argc < 2)
 235                 goto usage;
 236
 237         if (quiet_str)
 238                 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
 239
 240         cmd = argv[1];
 241
 242         if (strcmp(cmd, "info") == 0) {
 243
 244                 putc('\n');
 245                 for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
 246                         if (nand_info[i].name)
 247                                 nand_print_info(i);
 248                 }
 249                 return 0;
 250         }
 251
 252         if (strcmp(cmd, "device") == 0) {
 253
 254                 if (argc < 3) {
 255                         putc('\n');
 256                         if ((nand_curr_device < 0) ||
 257                             (nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE))
 258                                 puts("no devices available\n");
 259                         else
 260                                 nand_print_info(nand_curr_device);
 261                         return 0;
 262                 }
 263                 dev = (int)simple_strtoul(argv[2], NULL, 10);
 264                 if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[dev].name) {
 265                         puts("No such device\n");
 266                         return 1;
 267                 }
 268                 printf("Device %d: %s", dev, nand_info[dev].name);
 269                 puts("... is now current device\n");
 270                 nand_curr_device = dev;
 271
 272 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE
 273                 /*
 274                  * Select the chip in the board/cpu specific driver
 275                  */
 276                 board_nand_select_device(nand_info[dev].priv, dev);
 277 #endif
 278
 279                 return 0;
 280         }
 281
 282         if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 &&
 283             strncmp(cmd, "dump", 4) != 0 &&
 284             strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 &&
 285             strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 &&
 286             strcmp(cmd, "biterr") != 0 &&
 287             strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 )
 288                 goto usage;
 289
 290         /* the following commands operate on the current device */
 291         if (nand_curr_device < 0 || nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE ||
 292             !nand_info[nand_curr_device].name) {
 293                 puts("\nno devices available\n");
 294                 return 1;
 295         }
 296         nand = &nand_info[nand_curr_device];
 297
 298         if (strcmp(cmd, "bad") == 0) {
 299                 printf("\nDevice %d bad blocks:\n", nand_curr_device);
 300                 for (off = 0; off < nand->size; off += nand->erasesize)
 301                         if (nand_block_isbad(nand, off))
 302                                 printf("  %08lx\n", off);
 303                 return 0;
 304         }
 305
 306         /*
 307          * Syntax is:
 308          *   0    1     2       3    4
 309          *   nand erase [clean] [off size]
 310          */
 311         if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) {
 312                 nand_erase_options_t opts;
 313                 /* "clean" at index 2 means request to write cleanmarker */
 314                 int clean = argc > 2 && !strcmp("clean", argv[2]);
 315                 int o = clean ? 3 : 2;
 316                 int scrub = !strcmp(cmd, "scrub");
 317
 318                 printf("\nNAND %s: ", scrub ? "scrub" : "erase");
 319                 /* skip first two or three arguments, look for offset and size */
 320                 if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
 321                         return 1;
 322
 323                 memset(&opts, 0, sizeof(opts));
 324                 opts.offset = off;
 325                 opts.length = size;
 326                 opts.jffs2  = clean;
 327                 opts.quiet  = quiet;
 328
 329                 if (scrub) {
 330                         puts("Warning: "
 331                              "scrub option will erase all factory set "
 332                              "bad blocks!\n"
 333                              "         "
 334                              "There is no reliable way to recover them.\n"
 335                              "         "
 336                              "Use this command only for testing purposes "
 337                              "if you\n"
 338                              "         "
 339                              "are sure of what you are doing!\n"
 340                              "\nReally scrub this NAND flash? <y/N>\n");
 341
 342                         if (getc() == 'y' && getc() == '\r') {
 343                                 opts.scrub = 1;
 344                         } else {
 345                                 puts("scrub aborted\n");
 346                                 return -1;
 347                         }
 348                 }
 349                 ret = nand_erase_opts(nand, &opts);
 350                 printf("%s\n", ret ? "ERROR" : "OK");
 351
 352                 return ret == 0 ? 0 : 1;
 353         }
 354
 355         if (strncmp(cmd, "dump", 4) == 0) {
 356                 if (argc < 3)
 357                         goto usage;
 358
 359                 s = strchr(cmd, '.');
 360                 off = (int)simple_strtoul(argv[2], NULL, 16);
 361
 362                 if (s != NULL && strcmp(s, ".oob") == 0)
 363                         ret = nand_dump(nand, off, 1);
 364                 else
 365                         ret = nand_dump(nand, off, 0);
 366
 367                 return ret == 0 ? 1 : 0;
 368
 369         }
 370
 371         if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
 372                 int read;
 373
 374                 if (argc < 4)
 375                         goto usage;
 376
 377                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
 378
 379                 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
 380                 printf("\nNAND %s: ", read ? "read" : "write");
 381                 if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
 382                         return 1;
 383
 384                 s = strchr(cmd, '.');
 385                 if (!s || !strcmp(s, ".jffs2") ||
 386                     !strcmp(s, ".e") || !strcmp(s, ".i")) {
 387                         if (read)
 388                                 ret = nand_read_skip_bad(nand, off, &size,
 389                                                          (u_char *)addr);
 390                         else
 391                                 ret = nand_write_skip_bad(nand, off, &size,
 392                                                           (u_char *)addr);
 393                 } else if (!strcmp(s, ".oob")) {
 394                         /* out-of-band data */
 395                         mtd_oob_ops_t ops = {
 396                                 .oobbuf = (u8 *)addr,
 397                                 .ooblen = size,
 398                                 .mode = MTD_OOB_RAW
 399                         };
 400
 401                         if (read)
 402                                 ret = nand->read_oob(nand, off, &ops);
 403                         else
 404                                 ret = nand->write_oob(nand, off, &ops);
 405                 } else {
 406                         printf("Unknown nand command suffix '%s'.\n", s);
 407                         return 1;
 408                 }
 409
 410                 printf(" %zu bytes %s: %s\n", size,
 411                        read ? "read" : "written", ret ? "ERROR" : "OK");
 412
 413                 return ret == 0 ? 0 : 1;
 414         }
 415
 416         if (strcmp(cmd, "markbad") == 0) {
 417                 argc -= 2;
 418                 argv += 2;
 419
 420                 if (argc <= 0)
 421                         goto usage;
 422
 423                 while (argc > 0) {
 424                         addr = simple_strtoul(*argv, NULL, 16);
 425
 426                         if (nand->block_markbad(nand, addr)) {
 427                                 printf("block 0x%08lx NOT marked "
 428                                         "as bad! ERROR %d\n",
 429                                         addr, ret);
 430                                 ret = 1;
 431                         } else {
 432                                 printf("block 0x%08lx successfully "
 433                                         "marked as bad\n",
 434                                         addr);
 435                         }
 436                         --argc;
 437                         ++argv;
 438                 }
 439                 return ret;
 440         }
 441
 442         if (strcmp(cmd, "biterr") == 0) {
 443                 /* todo */
 444                 return 1;
 445         }
 446
 447 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
 448         if (strcmp(cmd, "lock") == 0) {
 449                 int tight = 0;
 450                 int status = 0;
 451                 if (argc == 3) {
 452                         if (!strcmp("tight", argv[2]))
 453                                 tight = 1;
 454                         if (!strcmp("status", argv[2]))
 455                                 status = 1;
 456                 }
 457                 if (status) {
 458                         do_nand_status(nand);
 459                 } else {
 460                         if (!nand_lock(nand, tight)) {
 461                                 puts("NAND flash successfully locked\n");
 462                         } else {
 463                                 puts("Error locking NAND flash\n");
 464                                 return 1;
 465                         }
 466                 }
 467                 return 0;
 468         }
 469
 470         if (strcmp(cmd, "unlock") == 0) {
 471                 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
 472                         return 1;
 473
 474                 if (!nand_unlock(nand, off, size)) {
 475                         puts("NAND flash successfully unlocked\n");
 476                 } else {
 477                         puts("Error unlocking NAND flash, "
 478                              "write and erase will probably fail\n");
 479                         return 1;
 480                 }
 481                 return 0;
 482         }
 483 #endif
 484
 485 usage:
 486         cmd_usage(cmdtp);
 487         return 1;
 488 }
 489
 490 U_BOOT_CMD(nand, CONFIG_SYS_MAXARGS, 1, do_nand,
 491         "NAND sub-system",
 492         "info - show available NAND devices\n"
 493         "nand device [dev] - show or set current device\n"
 494         "nand read - addr off|partition size\n"
 495         "nand write - addr off|partition size\n"
 496         "    read/write 'size' bytes starting at offset 'off'\n"
 497         "    to/from memory address 'addr', skipping bad blocks.\n"
 498         "nand erase [clean] [off size] - erase 'size' bytes from\n"
 499         "    offset 'off' (entire device if not specified)\n"
 500         "nand bad - show bad blocks\n"
 501         "nand dump[.oob] off - dump page\n"
 502         "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
 503         "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n"
 504         "nand biterr off - make a bit error at offset (UNSAFE)"
 505 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
 506         "\n"
 507         "nand lock [tight] [status]\n"
 508         "    bring nand to lock state or display locked pages\n"
 509         "nand unlock [offset] [size] - unlock section"
 510 #endif
 511 );
 512
 513 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
 514                            ulong offset, ulong addr, char *cmd)
 515 {
 516         int r;
 517         char *ep, *s;
 518         size_t cnt;
 519         image_header_t *hdr;
 520 #if defined(CONFIG_FIT)
 521         const void *fit_hdr = NULL;
 522 #endif
 523
 524         s = strchr(cmd, '.');
 525         if (s != NULL &&
 526             (strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) {
 527                 printf("Unknown nand load suffix '%s'\n", s);
 528                 show_boot_progress(-53);
 529                 return 1;
 530         }
 531
 532         printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
 533
 534         cnt = nand->writesize;
 535         r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr);
 536         if (r) {
 537                 puts("** Read error\n");
 538                 show_boot_progress (-56);
 539                 return 1;
 540         }
 541         show_boot_progress (56);
 542
 543         switch (genimg_get_format ((void *)addr)) {
 544         case IMAGE_FORMAT_LEGACY:
 545                 hdr = (image_header_t *)addr;
 546
 547                 show_boot_progress (57);
 548                 image_print_contents (hdr);
 549
 550                 cnt = image_get_image_size (hdr);
 551                 break;
 552 #if defined(CONFIG_FIT)
 553         case IMAGE_FORMAT_FIT:
 554                 fit_hdr = (const void *)addr;
 555                 puts ("Fit image detected...\n");
 556
 557                 cnt = fit_get_size (fit_hdr);
 558                 break;
 559 #endif
 560         default:
 561                 show_boot_progress (-57);
 562                 puts ("** Unknown image type\n");
 563                 return 1;
 564         }
 565         show_boot_progress (57);
 566
 567         r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr);
 568         if (r) {
 569                 puts("** Read error\n");
 570                 show_boot_progress (-58);
 571                 return 1;
 572         }
 573         show_boot_progress (58);
 574
 575 #if defined(CONFIG_FIT)
 576         /* This cannot be done earlier, we need complete FIT image in RAM first */
 577         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
 578                 if (!fit_check_format (fit_hdr)) {
 579                         show_boot_progress (-150);
 580                         puts ("** Bad FIT image format\n");
 581                         return 1;
 582                 }
 583                 show_boot_progress (151);
 584                 fit_print_contents (fit_hdr);
 585         }
 586 #endif
 587
 588         /* Loading ok, update default load address */
 589
 590         load_addr = addr;
 591
 592         /* Check if we should attempt an auto-start */
 593         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
 594                 char *local_args[2];
 595                 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
 596
 597                 local_args[0] = cmd;
 598                 local_args[1] = NULL;
 599
 600                 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
 601
 602                 do_bootm(cmdtp, 0, 1, local_args);
 603                 return 1;
 604         }
 605         return 0;
 606 }
 607
 608 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 609 {
 610         char *boot_device = NULL;
 611         int idx;
 612         ulong addr, offset = 0;
 613 #if defined(CONFIG_CMD_MTDPARTS)
 614         struct mtd_device *dev;
 615         struct part_info *part;
 616         u8 pnum;
 617
 618         if (argc >= 2) {
 619                 char *p = (argc == 2) ? argv[1] : argv[2];
 620                 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
 621                     (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
 622                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 623                                 puts("Not a NAND device\n");
 624                                 return 1;
 625                         }
 626                         if (argc > 3)
 627                                 goto usage;
 628                         if (argc == 3)
 629                                 addr = simple_strtoul(argv[1], NULL, 16);
 630                         else
 631                                 addr = CONFIG_SYS_LOAD_ADDR;
 632                         return nand_load_image(cmdtp, &nand_info[dev->id->num],
 633                                                part->offset, addr, argv[0]);
 634                 }
 635         }
 636 #endif
 637
 638         show_boot_progress(52);
 639         switch (argc) {
 640         case 1:
 641                 addr = CONFIG_SYS_LOAD_ADDR;
 642                 boot_device = getenv("bootdevice");
 643                 break;
 644         case 2:
 645                 addr = simple_strtoul(argv[1], NULL, 16);
 646                 boot_device = getenv("bootdevice");
 647                 break;
 648         case 3:
 649                 addr = simple_strtoul(argv[1], NULL, 16);
 650                 boot_device = argv[2];
 651                 break;
 652         case 4:
 653                 addr = simple_strtoul(argv[1], NULL, 16);
 654                 boot_device = argv[2];
 655                 offset = simple_strtoul(argv[3], NULL, 16);
 656                 break;
 657         default:
 658 #if defined(CONFIG_CMD_MTDPARTS)
 659 usage:
 660 #endif
 661                 cmd_usage(cmdtp);
 662                 show_boot_progress(-53);
 663                 return 1;
 664         }
 665
 666         show_boot_progress(53);
 667         if (!boot_device) {
 668                 puts("\n** No boot device **\n");
 669                 show_boot_progress(-54);
 670                 return 1;
 671         }
 672         show_boot_progress(54);
 673
 674         idx = simple_strtoul(boot_device, NULL, 16);
 675
 676         if (idx < 0 || idx >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[idx].name) {
 677                 printf("\n** Device %d not available\n", idx);
 678                 show_boot_progress(-55);
 679                 return 1;
 680         }
 681         show_boot_progress(55);
 682
 683         return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
 684 }
 685
 686 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
 687         "boot from NAND device",
 688         "[partition] | [[[loadAddr] dev] offset]"
 689 );
 690 #endif
 691
 692 #else /* CONFIG_NAND_LEGACY */
 693 /*
 694  *
 695  * Legacy NAND support - to be phased out
 696  *
 697  */
 698 #include <command.h>
 699 #include <malloc.h>
 700 #include <asm/io.h>
 701 #include <watchdog.h>
 702
 703 #ifdef CONFIG_show_boot_progress
 704 # include <status_led.h>
 705 # define show_boot_progress(arg)        show_boot_progress(arg)
 706 #else
 707 # define show_boot_progress(arg)
 708 #endif
 709
 710 #if defined(CONFIG_CMD_NAND)
 711 #include <linux/mtd/nand_legacy.h>
 712 #if 0
 713 #include <linux/mtd/nand_ids.h>
 714 #include <jffs2/jffs2.h>
 715 #endif
 716
 717 #ifdef CONFIG_OMAP1510
 718 void archflashwp(void *archdata, int wp);
 719 #endif
 720
 721 #define ROUND_DOWN(value,boundary)      ((value) & (~((boundary)-1)))
 722
 723 #undef  NAND_DEBUG
 724 #undef  PSYCHO_DEBUG
 725
 726 /* ****************** WARNING *********************
 727  * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
 728  * erase (or at least attempt to erase) blocks that are marked
 729  * bad. This can be very handy if you are _sure_ that the block
 730  * is OK, say because you marked a good block bad to test bad
 731  * block handling and you are done testing, or if you have
 732  * accidentally marked blocks bad.
 733  *
 734  * Erasing factory marked bad blocks is a _bad_ idea. If the
 735  * erase succeeds there is no reliable way to find them again,
 736  * and attempting to program or erase bad blocks can affect
 737  * the data in _other_ (good) blocks.
 738  */
 739 #define  ALLOW_ERASE_BAD_DEBUG 0
 740
 741 #define CONFIG_MTD_NAND_ECC  /* enable ECC */
 742 #define CONFIG_MTD_NAND_ECC_JFFS2
 743
 744 /* bits for nand_legacy_rw() `cmd'; or together as needed */
 745 #define NANDRW_READ         0x01
 746 #define NANDRW_WRITE        0x00
 747 #define NANDRW_JFFS2        0x02
 748 #define NANDRW_JFFS2_SKIP   0x04
 749
 750 /*
 751  * Imports from nand_legacy.c
 752  */
 753 extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE];
 754 extern int curr_device;
 755 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
 756                             size_t len, int clean);
 757 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
 758                          size_t len, size_t *retlen, u_char *buf);
 759 extern void nand_print(struct nand_chip *nand);
 760 extern void nand_print_bad(struct nand_chip *nand);
 761 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
 762                                size_t len, size_t *retlen, u_char *buf);
 763 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
 764                                 size_t len, size_t *retlen, const u_char *buf);
 765
 766
 767 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 768 {
 769         int rcode = 0;
 770
 771         switch (argc) {
 772         case 0:
 773         case 1:
 774                 cmd_usage(cmdtp);
 775                 return 1;
 776         case 2:
 777                 if (strcmp (argv[1], "info") == 0) {
 778                         int i;
 779
 780                         putc ('\n');
 781
 782                         for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; ++i) {
 783                                 if (nand_dev_desc[i].ChipID ==
 784                                     NAND_ChipID_UNKNOWN)
 785                                         continue;       /* list only known devices */
 786                                 printf ("Device %d: ", i);
 787                                 nand_print (&nand_dev_desc[i]);
 788                         }
 789                         return 0;
 790
 791                 } else if (strcmp (argv[1], "device") == 0) {
 792                         if ((curr_device < 0)
 793                             || (curr_device >= CONFIG_SYS_MAX_NAND_DEVICE)) {
 794                                 puts ("\nno devices available\n");
 795                                 return 1;
 796                         }
 797                         printf ("\nDevice %d: ", curr_device);
 798                         nand_print (&nand_dev_desc[curr_device]);
 799                         return 0;
 800
 801                 } else if (strcmp (argv[1], "bad") == 0) {
 802                         if ((curr_device < 0)
 803                             || (curr_device >= CONFIG_SYS_MAX_NAND_DEVICE)) {
 804                                 puts ("\nno devices available\n");
 805                                 return 1;
 806                         }
 807                         printf ("\nDevice %d bad blocks:\n", curr_device);
 808                         nand_print_bad (&nand_dev_desc[curr_device]);
 809                         return 0;
 810
 811                 }
 812                 cmd_usage(cmdtp);
 813                 return 1;
 814         case 3:
 815                 if (strcmp (argv[1], "device") == 0) {
 816                         int dev = (int) simple_strtoul (argv[2], NULL, 10);
 817
 818                         printf ("\nDevice %d: ", dev);
 819                         if (dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
 820                                 puts ("unknown device\n");
 821                                 return 1;
 822                         }
 823                         nand_print (&nand_dev_desc[dev]);
 824                         /*nand_print (dev); */
 825
 826                         if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
 827                                 return 1;
 828                         }
 829
 830                         curr_device = dev;
 831
 832                         puts ("... is now current device\n");
 833
 834                         return 0;
 835                 } else if (strcmp (argv[1], "erase") == 0
 836                            && strcmp (argv[2], "clean") == 0) {
 837                         struct nand_chip *nand = &nand_dev_desc[curr_device];
 838                         ulong off = 0;
 839                         ulong size = nand->totlen;
 840                         int ret;
 841
 842                         printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
 843
 844                         ret = nand_legacy_erase (nand, off, size, 1);
 845
 846                         printf ("%s\n", ret ? "ERROR" : "OK");
 847
 848                         return ret;
 849                 }
 850
 851                 cmd_usage(cmdtp);
 852                 return 1;
 853         default:
 854                 /* at least 4 args */
 855
 856                 if (strncmp (argv[1], "read", 4) == 0 ||
 857                     strncmp (argv[1], "write", 5) == 0) {
 858                         ulong addr = simple_strtoul (argv[2], NULL, 16);
 859                         off_t off = simple_strtoul (argv[3], NULL, 16);
 860                         size_t size = simple_strtoul (argv[4], NULL, 16);
 861                         int cmd = (strncmp (argv[1], "read", 4) == 0) ?
 862                                   NANDRW_READ : NANDRW_WRITE;
 863                         size_t total;
 864                         int ret;
 865                         char *cmdtail = strchr (argv[1], '.');
 866
 867                         if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
 868                                 /* read out-of-band data */
 869                                 if (cmd & NANDRW_READ) {
 870                                         ret = nand_read_oob (nand_dev_desc + curr_device,
 871                                                              off, size, &total,
 872                                                              (u_char *) addr);
 873                                 } else {
 874                                         ret = nand_write_oob (nand_dev_desc + curr_device,
 875                                                               off, size, &total,
 876                                                               (u_char *) addr);
 877                                 }
 878                                 return ret;
 879                         } else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 7)) {
 880                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 881                                 if (cmd & NANDRW_READ)
 882                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 883                         } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
 884                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 885 #ifdef SXNI855T
 886                         /* need ".e" same as ".j" for compatibility with older units */
 887                         else if (cmdtail && !strcmp (cmdtail, ".e"))
 888                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 889 #endif
 890 #ifdef CONFIG_SYS_NAND_SKIP_BAD_DOT_I
 891                         /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
 892                         /* ".i" for image -> read skips bad block (no 0xff) */
 893                         else if (cmdtail && !strcmp (cmdtail, ".i")) {
 894                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 895                                 if (cmd & NANDRW_READ)
 896                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 897                         }
 898 #endif /* CONFIG_SYS_NAND_SKIP_BAD_DOT_I */
 899                         else if (cmdtail) {
 900                                 cmd_usage(cmdtp);
 901                                 return 1;
 902                         }
 903
 904                         printf ("\nNAND %s: device %d offset %ld, size %lu ...\n",
 905                                 (cmd & NANDRW_READ) ? "read" : "write",
 906                                 curr_device, off, (ulong)size);
 907
 908                         ret = nand_legacy_rw (nand_dev_desc + curr_device,
 909                                               cmd, off, size,
 910                                               &total, (u_char *) addr);
 911
 912                         printf (" %d bytes %s: %s\n", total,
 913                                 (cmd & NANDRW_READ) ? "read" : "written",
 914                                 ret ? "ERROR" : "OK");
 915
 916                         return ret;
 917                 } else if (strcmp (argv[1], "erase") == 0 &&
 918                            (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
 919                         int clean = argc == 5;
 920                         ulong off =
 921                                 simple_strtoul (argv[2 + clean], NULL, 16);
 922                         ulong size =
 923                                 simple_strtoul (argv[3 + clean], NULL, 16);
 924                         int ret;
 925
 926                         printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
 927                                 curr_device, off, size);
 928
 929                         ret = nand_legacy_erase (nand_dev_desc + curr_device,
 930                                                  off, size, clean);
 931
 932                         printf ("%s\n", ret ? "ERROR" : "OK");
 933
 934                         return ret;
 935                 } else {
 936                         cmd_usage(cmdtp);
 937                         rcode = 1;
 938                 }
 939
 940                 return rcode;
 941         }
 942 }
 943
 944 U_BOOT_CMD(
 945         nand,   5,      1,      do_nand,
 946         "legacy NAND sub-system",
 947         "info  - show available NAND devices\n"
 948         "nand device [dev] - show or set current device\n"
 949         "nand read[.jffs2[s]]  addr off size\n"
 950         "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
 951         "    at offset `off' to/from memory address `addr'\n"
 952         "nand erase [clean] [off size] - erase `size' bytes from\n"
 953         "    offset `off' (entire device if not specified)\n"
 954         "nand bad - show bad blocks\n"
 955         "nand read.oob addr off size - read out-of-band data\n"
 956         "nand write.oob addr off size - read out-of-band data"
 957 );
 958
 959 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 960 {
 961         char *boot_device = NULL;
 962         char *ep;
 963         int dev;
 964         ulong cnt;
 965         ulong addr;
 966         ulong offset = 0;
 967         image_header_t *hdr;
 968         int rcode = 0;
 969 #if defined(CONFIG_FIT)
 970         const void *fit_hdr = NULL;
 971 #endif
 972
 973         show_boot_progress (52);
 974         switch (argc) {
 975         case 1:
 976                 addr = CONFIG_SYS_LOAD_ADDR;
 977                 boot_device = getenv ("bootdevice");
 978                 break;
 979         case 2:
 980                 addr = simple_strtoul(argv[1], NULL, 16);
 981                 boot_device = getenv ("bootdevice");
 982                 break;
 983         case 3:
 984                 addr = simple_strtoul(argv[1], NULL, 16);
 985                 boot_device = argv[2];
 986                 break;
 987         case 4:
 988                 addr = simple_strtoul(argv[1], NULL, 16);
 989                 boot_device = argv[2];
 990                 offset = simple_strtoul(argv[3], NULL, 16);
 991                 break;
 992         default:
 993                 cmd_usage(cmdtp);
 994                 show_boot_progress (-53);
 995                 return 1;
 996         }
 997
 998         show_boot_progress (53);
 999         if (!boot_device) {
1000                 puts ("\n** No boot device **\n");
1001                 show_boot_progress (-54);
1002                 return 1;
1003         }
1004         show_boot_progress (54);
1005
1006         dev = simple_strtoul(boot_device, &ep, 16);
1007
1008         if ((dev >= CONFIG_SYS_MAX_NAND_DEVICE) ||
1009             (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
1010                 printf ("\n** Device %d not available\n", dev);
1011                 show_boot_progress (-55);
1012                 return 1;
1013         }
1014         show_boot_progress (55);
1015
1016         printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1017             dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
1018             offset);
1019
1020         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
1021                             SECTORSIZE, NULL, (u_char *)addr)) {
1022                 printf ("** Read error on %d\n", dev);
1023                 show_boot_progress (-56);
1024                 return 1;
1025         }
1026         show_boot_progress (56);
1027
1028         switch (genimg_get_format ((void *)addr)) {
1029         case IMAGE_FORMAT_LEGACY:
1030                 hdr = (image_header_t *)addr;
1031                 image_print_contents (hdr);
1032
1033                 cnt = image_get_image_size (hdr);
1034                 cnt -= SECTORSIZE;
1035                 break;
1036 #if defined(CONFIG_FIT)
1037         case IMAGE_FORMAT_FIT:
1038                 fit_hdr = (const void *)addr;
1039                 puts ("Fit image detected...\n");
1040
1041                 cnt = fit_get_size (fit_hdr);
1042                 break;
1043 #endif
1044         default:
1045                 show_boot_progress (-57);
1046                 puts ("** Unknown image type\n");
1047                 return 1;
1048         }
1049         show_boot_progress (57);
1050
1051         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
1052                             offset + SECTORSIZE, cnt, NULL,
1053                             (u_char *)(addr+SECTORSIZE))) {
1054                 printf ("** Read error on %d\n", dev);
1055                 show_boot_progress (-58);
1056                 return 1;
1057         }
1058         show_boot_progress (58);
1059
1060 #if defined(CONFIG_FIT)
1061         /* This cannot be done earlier, we need complete FIT image in RAM first */
1062         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
1063                 if (!fit_check_format (fit_hdr)) {
1064                         show_boot_progress (-150);
1065                         puts ("** Bad FIT image format\n");
1066                         return 1;
1067                 }
1068                 show_boot_progress (151);
1069                 fit_print_contents (fit_hdr);
1070         }
1071 #endif
1072
1073         /* Loading ok, update default load address */
1074
1075         load_addr = addr;
1076
1077         /* Check if we should attempt an auto-start */
1078         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1079                 char *local_args[2];
1080                 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1081
1082                 local_args[0] = argv[0];
1083                 local_args[1] = NULL;
1084
1085                 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1086
1087                 do_bootm (cmdtp, 0, 1, local_args);
1088                 rcode = 1;
1089         }
1090         return rcode;
1091 }
1092
1093 U_BOOT_CMD(
1094         nboot,  4,      1,      do_nandboot,
1095         "boot from NAND device",
1096         "loadAddr dev"
1097 );
1098
1099 #endif
1100
1101 #endif /* CONFIG_NAND_LEGACY */