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 block_start = 0;
 410                         ulong off;
 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 //                              int s = nand_get_lock_status(nand, off);
 422 //
 423 //                              /* print message only if status has changed
 424 //                               * or at end of chip
 425 //                               */
 426 //                              if (off == nand->size - nand->writesize
 427 //                                  || (s != last_status && off != 0))  {
 428 //
 429 //                                      printf("%08lx - %08lx: %8d pages %s%s%s\n",
 430 //                                             block_start,
 431 //                                             off-1,
 432 //                                             (off-block_start)/nand->writesize,
 433 //                                             ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
 434 //                                             ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
 435 //                                             ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
 436 //                              }
 437 //
 438 //                              last_status = s;
 439                         }
 440                 } else {
 441 //                      if (!nand_lock(nand, tight)) {
 442 //                              puts("NAND flash successfully locked\n");
 443 //                      } else {
 444 //                              puts("Error locking NAND flash\n");
 445 //                              return 1;
 446 //                      }
 447                 }
 448                 return 0;
 449         }
 450
 451         if (strcmp(cmd, "unlock") == 0) {
 452                 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
 453                         return 1;
 454
 455 //              if (!nand_unlock(nand, off, size)) {
 456 //                      puts("NAND flash successfully unlocked\n");
 457 //              } else {
 458 //                      puts("Error unlocking NAND flash, "
 459 //                           "write and erase will probably fail\n");
 460 //                      return 1;
 461 //              }
 462                 return 0;
 463         }
 464
 465 usage:
 466         printf("Usage:\n%s\n", cmdtp->usage);
 467         return 1;
 468 }
 469
 470 U_BOOT_CMD(nand, 5, 1, do_nand,
 471            "nand - NAND sub-system\n",
 472            "info - show available NAND devices\n"
 473            "nand device [dev] - show or set current device\n"
 474            "nand read[.jffs2] - addr off|partition size\n"
 475            "nand write[.jffs2] - addr off|partition size\n"
 476            "    read/write 'size' bytes starting at offset 'off'\n"
 477            "    to/from memory address 'addr'\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            "nand lock [tight] [status]\n"
 486            "    bring nand to lock state or display locked pages\n"
 487            "nand unlock [offset] [size] - unlock section\n");
 488
 489 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
 490                            ulong offset, ulong addr, char *cmd)
 491 {
 492         int r;
 493         char *ep, *s;
 494         size_t cnt;
 495         image_header_t *hdr;
 496         int jffs2 = 0;
 497 #if defined(CONFIG_FIT)
 498         const void *fit_hdr = NULL;
 499 #endif
 500
 501         s = strchr(cmd, '.');
 502         if (s != NULL &&
 503             (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
 504                 jffs2 = 1;
 505
 506         printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
 507
 508         cnt = nand->writesize;
 509         r = nand_read(nand, offset, &cnt, (u_char *) addr);
 510         if (r) {
 511                 puts("** Read error\n");
 512                 show_boot_progress (-56);
 513                 return 1;
 514         }
 515         show_boot_progress (56);
 516
 517         switch (genimg_get_format ((void *)addr)) {
 518         case IMAGE_FORMAT_LEGACY:
 519                 hdr = (image_header_t *)addr;
 520
 521                 show_boot_progress (57);
 522                 image_print_contents (hdr);
 523
 524                 cnt = image_get_image_size (hdr);
 525                 break;
 526 #if defined(CONFIG_FIT)
 527         case IMAGE_FORMAT_FIT:
 528                 fit_hdr = (const void *)addr;
 529                 puts ("Fit image detected...\n");
 530
 531                 cnt = fit_get_size (fit_hdr);
 532                 break;
 533 #endif
 534         default:
 535                 show_boot_progress (-57);
 536                 puts ("** Unknown image type\n");
 537                 return 1;
 538         }
 539
 540         r = nand_read(nand, offset, &cnt, (u_char *) addr);
 541         if (r) {
 542                 puts("** Read error\n");
 543                 show_boot_progress (-58);
 544                 return 1;
 545         }
 546         show_boot_progress (58);
 547
 548 #if defined(CONFIG_FIT)
 549         /* This cannot be done earlier, we need complete FIT image in RAM first */
 550         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
 551                 if (!fit_check_format (fit_hdr)) {
 552                         show_boot_progress (-150);
 553                         puts ("** Bad FIT image format\n");
 554                         return 1;
 555                 }
 556                 show_boot_progress (151);
 557                 fit_print_contents (fit_hdr);
 558         }
 559 #endif
 560
 561         /* Loading ok, update default load address */
 562
 563         load_addr = addr;
 564
 565         /* Check if we should attempt an auto-start */
 566         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
 567                 char *local_args[2];
 568                 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
 569
 570                 local_args[0] = cmd;
 571                 local_args[1] = NULL;
 572
 573                 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
 574
 575                 do_bootm(cmdtp, 0, 1, local_args);
 576                 return 1;
 577         }
 578         return 0;
 579 }
 580
 581 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 582 {
 583         char *boot_device = NULL;
 584         int idx;
 585         ulong addr, offset = 0;
 586 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 587         struct mtd_device *dev;
 588         struct part_info *part;
 589         u8 pnum;
 590
 591         if (argc >= 2) {
 592                 char *p = (argc == 2) ? argv[1] : argv[2];
 593                 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
 594                     (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
 595                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
 596                                 puts("Not a NAND device\n");
 597                                 return 1;
 598                         }
 599                         if (argc > 3)
 600                                 goto usage;
 601                         if (argc == 3)
 602                                 addr = simple_strtoul(argv[1], NULL, 16);
 603                         else
 604                                 addr = CFG_LOAD_ADDR;
 605                         return nand_load_image(cmdtp, &nand_info[dev->id->num],
 606                                                part->offset, addr, argv[0]);
 607                 }
 608         }
 609 #endif
 610
 611         show_boot_progress(52);
 612         switch (argc) {
 613         case 1:
 614                 addr = CFG_LOAD_ADDR;
 615                 boot_device = getenv("bootdevice");
 616                 break;
 617         case 2:
 618                 addr = simple_strtoul(argv[1], NULL, 16);
 619                 boot_device = getenv("bootdevice");
 620                 break;
 621         case 3:
 622                 addr = simple_strtoul(argv[1], NULL, 16);
 623                 boot_device = argv[2];
 624                 break;
 625         case 4:
 626                 addr = simple_strtoul(argv[1], NULL, 16);
 627                 boot_device = argv[2];
 628                 offset = simple_strtoul(argv[3], NULL, 16);
 629                 break;
 630         default:
 631 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 632 usage:
 633 #endif
 634                 printf("Usage:\n%s\n", cmdtp->usage);
 635                 show_boot_progress(-53);
 636                 return 1;
 637         }
 638
 639         show_boot_progress(53);
 640         if (!boot_device) {
 641                 puts("\n** No boot device **\n");
 642                 show_boot_progress(-54);
 643                 return 1;
 644         }
 645         show_boot_progress(54);
 646
 647         idx = simple_strtoul(boot_device, NULL, 16);
 648
 649         if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
 650                 printf("\n** Device %d not available\n", idx);
 651                 show_boot_progress(-55);
 652                 return 1;
 653         }
 654         show_boot_progress(55);
 655
 656         return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
 657 }
 658
 659 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
 660         "nboot   - boot from NAND device\n",
 661         "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
 662
 663 #endif
 664
 665 #else /* CFG_NAND_LEGACY */
 666 /*
 667  *
 668  * Legacy NAND support - to be phased out
 669  *
 670  */
 671 #include <command.h>
 672 #include <malloc.h>
 673 #include <asm/io.h>
 674 #include <watchdog.h>
 675
 676 #ifdef CONFIG_show_boot_progress
 677 # include <status_led.h>
 678 # define show_boot_progress(arg)        show_boot_progress(arg)
 679 #else
 680 # define show_boot_progress(arg)
 681 #endif
 682
 683 #if defined(CONFIG_CMD_NAND)
 684 #include <linux/mtd/nand_legacy.h>
 685 #if 0
 686 #include <linux/mtd/nand_ids.h>
 687 #include <jffs2/jffs2.h>
 688 #endif
 689
 690 #ifdef CONFIG_OMAP1510
 691 void archflashwp(void *archdata, int wp);
 692 #endif
 693
 694 #define ROUND_DOWN(value,boundary)      ((value) & (~((boundary)-1)))
 695
 696 #undef  NAND_DEBUG
 697 #undef  PSYCHO_DEBUG
 698
 699 /* ****************** WARNING *********************
 700  * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
 701  * erase (or at least attempt to erase) blocks that are marked
 702  * bad. This can be very handy if you are _sure_ that the block
 703  * is OK, say because you marked a good block bad to test bad
 704  * block handling and you are done testing, or if you have
 705  * accidentally marked blocks bad.
 706  *
 707  * Erasing factory marked bad blocks is a _bad_ idea. If the
 708  * erase succeeds there is no reliable way to find them again,
 709  * and attempting to program or erase bad blocks can affect
 710  * the data in _other_ (good) blocks.
 711  */
 712 #define  ALLOW_ERASE_BAD_DEBUG 0
 713
 714 #define CONFIG_MTD_NAND_ECC  /* enable ECC */
 715 #define CONFIG_MTD_NAND_ECC_JFFS2
 716
 717 /* bits for nand_legacy_rw() `cmd'; or together as needed */
 718 #define NANDRW_READ 0x01
 719 #define NANDRW_WRITE    0x00
 720 #define NANDRW_JFFS2    0x02
 721 #define NANDRW_JFFS2_SKIP   0x04
 722
 723 /*
 724  * Imports from nand_legacy.c
 725  */
 726 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
 727 extern int curr_device;
 728 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
 729                 size_t len, int clean);
 730 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
 731              size_t len, size_t *retlen, u_char *buf);
 732 extern void nand_print(struct nand_chip *nand);
 733 extern void nand_print_bad(struct nand_chip *nand);
 734 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
 735                    size_t len, size_t *retlen, u_char *buf);
 736 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
 737                 size_t len, size_t *retlen, const u_char *buf);
 738
 739
 740 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 741 {
 742         int rcode = 0;
 743
 744         switch (argc) {
 745         case 0:
 746         case 1:
 747                 printf ("Usage:\n%s\n", cmdtp->usage);
 748                 return 1;
 749         case 2:
 750                 if (strcmp (argv[1], "info") == 0) {
 751                         int i;
 752
 753                         putc ('\n');
 754
 755                         for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
 756                                 if (nand_dev_desc[i].ChipID ==
 757                                     NAND_ChipID_UNKNOWN)
 758                                         continue;       /* list only known devices */
 759                                 printf ("Device %d: ", i);
 760                                 nand_print (&nand_dev_desc[i]);
 761                         }
 762                         return 0;
 763
 764                 } else if (strcmp (argv[1], "device") == 0) {
 765                         if ((curr_device < 0)
 766                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 767                                 puts ("\nno devices available\n");
 768                                 return 1;
 769                         }
 770                         printf ("\nDevice %d: ", curr_device);
 771                         nand_print (&nand_dev_desc[curr_device]);
 772                         return 0;
 773
 774                 } else if (strcmp (argv[1], "bad") == 0) {
 775                         if ((curr_device < 0)
 776                             || (curr_device >= CFG_MAX_NAND_DEVICE)) {
 777                                 puts ("\nno devices available\n");
 778                                 return 1;
 779                         }
 780                         printf ("\nDevice %d bad blocks:\n", curr_device);
 781                         nand_print_bad (&nand_dev_desc[curr_device]);
 782                         return 0;
 783
 784                 }
 785                 printf ("Usage:\n%s\n", cmdtp->usage);
 786                 return 1;
 787         case 3:
 788                 if (strcmp (argv[1], "device") == 0) {
 789                         int dev = (int) simple_strtoul (argv[2], NULL, 10);
 790
 791                         printf ("\nDevice %d: ", dev);
 792                         if (dev >= CFG_MAX_NAND_DEVICE) {
 793                                 puts ("unknown device\n");
 794                                 return 1;
 795                         }
 796                         nand_print (&nand_dev_desc[dev]);
 797                         /*nand_print (dev); */
 798
 799                         if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
 800                                 return 1;
 801                         }
 802
 803                         curr_device = dev;
 804
 805                         puts ("... is now current device\n");
 806
 807                         return 0;
 808                 } else if (strcmp (argv[1], "erase") == 0
 809                            && strcmp (argv[2], "clean") == 0) {
 810                         struct nand_chip *nand = &nand_dev_desc[curr_device];
 811                         ulong off = 0;
 812                         ulong size = nand->totlen;
 813                         int ret;
 814
 815                         printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
 816
 817                         ret = nand_legacy_erase (nand, off, size, 1);
 818
 819                         printf ("%s\n", ret ? "ERROR" : "OK");
 820
 821                         return ret;
 822                 }
 823
 824                 printf ("Usage:\n%s\n", cmdtp->usage);
 825                 return 1;
 826         default:
 827                 /* at least 4 args */
 828
 829                 if (strncmp (argv[1], "read", 4) == 0 ||
 830                     strncmp (argv[1], "write", 5) == 0) {
 831                         ulong   addr = simple_strtoul (argv[2], NULL, 16);
 832                         off_t   off  = simple_strtoul (argv[3], NULL, 16);
 833                         size_t  size = simple_strtoul (argv[4], NULL, 16);
 834                         int     cmd = (strncmp (argv[1], "read", 4) == 0) ?
 835                                         NANDRW_READ : NANDRW_WRITE;
 836                         size_t total;
 837                         int ret;
 838                         char *cmdtail = strchr (argv[1], '.');
 839
 840                         if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
 841                                 /* read out-of-band data */
 842                                 if (cmd & NANDRW_READ) {
 843                                         ret = nand_read_oob (nand_dev_desc + curr_device,
 844                                                              off, size, &total,
 845                                                              (u_char *) addr);
 846                                 } else {
 847                                         ret = nand_write_oob (nand_dev_desc + curr_device,
 848                                                               off, size, &total,
 849                                                               (u_char *) addr);
 850                                 }
 851                                 return ret;
 852                         } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
 853                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 854                         else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
 855                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 856                                 if (cmd & NANDRW_READ)
 857                                         cmd |= NANDRW_JFFS2_SKIP;       /* skip bad blocks (on read too) */
 858                         }
 859 #ifdef SXNI855T
 860                         /* need ".e" same as ".j" for compatibility with older units */
 861                         else if (cmdtail && !strcmp (cmdtail, ".e"))
 862                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks */
 863 #endif
 864 #ifdef CFG_NAND_SKIP_BAD_DOT_I
 865                         /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
 866                         /* ".i" for image -> read skips bad block (no 0xff) */
 867                         else if (cmdtail && !strcmp (cmdtail, ".i")) {
 868                                 cmd |= NANDRW_JFFS2;    /* skip bad blocks (on read too) */
 869                                 if (cmd & NANDRW_READ)
 870                                         cmd |= NANDRW_JFFS2_SKIP;   /* skip bad blocks (on read too) */
 871                         }
 872 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
 873                         else if (cmdtail) {
 874                                 printf ("Usage:\n%s\n", cmdtp->usage);
 875                                 return 1;
 876                         }
 877
 878                         printf ("\nNAND %s: device %d offset %ld, size %lu ...\n",
 879                                 (cmd & NANDRW_READ) ? "read" : "write",
 880                                 curr_device, off, (ulong)size);
 881
 882                         ret = nand_legacy_rw (nand_dev_desc + curr_device,
 883                                               cmd, off, size,
 884                                               &total,
 885                                               (u_char *) addr);
 886
 887                         printf (" %d bytes %s: %s\n", total,
 888                                 (cmd & NANDRW_READ) ? "read" : "written",
 889                                 ret ? "ERROR" : "OK");
 890
 891                         return ret;
 892                 } else if (strcmp (argv[1], "erase") == 0 &&
 893                            (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
 894                         int clean = argc == 5;
 895                         ulong off =
 896                                 simple_strtoul (argv[2 + clean], NULL, 16);
 897                         ulong size =
 898                                 simple_strtoul (argv[3 + clean], NULL, 16);
 899                         int ret;
 900
 901                         printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
 902                                 curr_device, off, size);
 903
 904                         ret = nand_legacy_erase (nand_dev_desc + curr_device,
 905                                                  off, size, clean);
 906
 907                         printf ("%s\n", ret ? "ERROR" : "OK");
 908
 909                         return ret;
 910                 } else {
 911                         printf ("Usage:\n%s\n", cmdtp->usage);
 912                         rcode = 1;
 913                 }
 914
 915                 return rcode;
 916         }
 917 }
 918
 919 U_BOOT_CMD(
 920         nand,   5,  1,  do_nand,
 921         "nand    - legacy NAND sub-system\n",
 922         "info  - show available NAND devices\n"
 923         "nand device [dev] - show or set current device\n"
 924         "nand read[.jffs2[s]]  addr off size\n"
 925         "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
 926         "    at offset `off' to/from memory address `addr'\n"
 927         "nand erase [clean] [off size] - erase `size' bytes from\n"
 928         "    offset `off' (entire device if not specified)\n"
 929         "nand bad - show bad blocks\n"
 930         "nand read.oob addr off size - read out-of-band data\n"
 931         "nand write.oob addr off size - read out-of-band data\n"
 932 );
 933
 934 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 935 {
 936         char *boot_device = NULL;
 937         char *ep;
 938         int dev;
 939         ulong cnt;
 940         ulong addr;
 941         ulong offset = 0;
 942         image_header_t *hdr;
 943         int rcode = 0;
 944 #if defined(CONFIG_FIT)
 945         const void *fit_hdr = NULL;
 946 #endif
 947
 948         show_boot_progress (52);
 949         switch (argc) {
 950         case 1:
 951                 addr = CFG_LOAD_ADDR;
 952                 boot_device = getenv ("bootdevice");
 953                 break;
 954         case 2:
 955                 addr = simple_strtoul(argv[1], NULL, 16);
 956                 boot_device = getenv ("bootdevice");
 957                 break;
 958         case 3:
 959                 addr = simple_strtoul(argv[1], NULL, 16);
 960                 boot_device = argv[2];
 961                 break;
 962         case 4:
 963                 addr = simple_strtoul(argv[1], NULL, 16);
 964                 boot_device = argv[2];
 965                 offset = simple_strtoul(argv[3], NULL, 16);
 966                 break;
 967         default:
 968                 printf ("Usage:\n%s\n", cmdtp->usage);
 969                 show_boot_progress (-53);
 970                 return 1;
 971         }
 972
 973         show_boot_progress (53);
 974         if (!boot_device) {
 975                 puts ("\n** No boot device **\n");
 976                 show_boot_progress (-54);
 977                 return 1;
 978         }
 979         show_boot_progress (54);
 980
 981         dev = simple_strtoul(boot_device, &ep, 16);
 982
 983         if ((dev >= CFG_MAX_NAND_DEVICE) ||
 984                 (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
 985                 printf ("\n** Device %d not available\n", dev);
 986                 show_boot_progress (-55);
 987                 return 1;
 988         }
 989         show_boot_progress (55);
 990
 991         printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
 992             dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
 993             offset);
 994
 995         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
 996                             SECTORSIZE, NULL, (u_char *)addr)) {
 997                 printf ("** Read error on %d\n", dev);
 998                 show_boot_progress (-56);
 999                 return 1;
1000         }
1001         show_boot_progress (56);
1002
1003         switch (genimg_get_format ((void *)addr)) {
1004         case IMAGE_FORMAT_LEGACY:
1005                 hdr = (image_header_t *)addr;
1006                 image_print_contents (hdr);
1007
1008                 cnt = image_get_image_size (hdr);
1009                 cnt -= SECTORSIZE;
1010                 break;
1011 #if defined(CONFIG_FIT)
1012         case IMAGE_FORMAT_FIT:
1013                 fit_hdr = (const void *)addr;
1014                 puts ("Fit image detected...\n");
1015
1016                 cnt = fit_get_size (fit_hdr);
1017                 break;
1018 #endif
1019         default:
1020                 show_boot_progress (-57);
1021                 puts ("** Unknown image type\n");
1022                 return 1;
1023         }
1024         show_boot_progress (57);
1025
1026         if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
1027                             offset + SECTORSIZE, cnt, NULL,
1028                             (u_char *)(addr+SECTORSIZE))) {
1029                 printf ("** Read error on %d\n", dev);
1030                 show_boot_progress (-58);
1031                 return 1;
1032         }
1033         show_boot_progress (58);
1034
1035 #if defined(CONFIG_FIT)
1036         /* This cannot be done earlier, we need complete FIT image in RAM first */
1037         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
1038                 if (!fit_check_format (fit_hdr)) {
1039                         show_boot_progress (-150);
1040                         puts ("** Bad FIT image format\n");
1041                         return 1;
1042                 }
1043                 show_boot_progress (151);
1044                 fit_print_contents (fit_hdr);
1045         }
1046 #endif
1047
1048         /* Loading ok, update default load address */
1049
1050         load_addr = addr;
1051
1052         /* Check if we should attempt an auto-start */
1053         if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1054                 char *local_args[2];
1055                 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1056
1057                 local_args[0] = argv[0];
1058                 local_args[1] = NULL;
1059
1060                 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1061
1062                 do_bootm (cmdtp, 0, 1, local_args);
1063                 rcode = 1;
1064         }
1065         return rcode;
1066 }
1067
1068 U_BOOT_CMD(
1069         nboot,  4,  1,  do_nandboot,
1070         "nboot   - boot from NAND device\n",
1071         "loadAddr dev\n"
1072 );
1073
1074 #endif
1075
1076 #endif /* CFG_NAND_LEGACY */