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 * Ported 'dynenv' to 'nand env.oob' command 8 * (C) 2010 Nanometrics, Inc. 9 * 'dynenv' -- Dynamic environment offset in NAND OOB 10 * (C) Copyright 2006-2007 OpenMoko, Inc. 11 * Added 16-bit nand support 12 * (C) 2004 Texas Instruments 13 * 14 * Copyright 2010, 2012 Freescale Semiconductor 15 * The portions of this file whose copyright is held by Freescale and which 16 * are not considered a derived work of GPL v2-only code may be distributed 17 * and/or modified under the terms of the GNU General Public License as 18 * published by the Free Software Foundation; either version 2 of the 19 * License, or (at your option) any later version. 20 */ 21 22 #include <common.h> 23 #include <linux/mtd/mtd.h> 24 #include <command.h> 25 #include <console.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 /* partition 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(struct mtd_info *mtd, ulong off, int only_oob, 42 int repeat) 43 { 44 int i; 45 u_char *datbuf, *oobbuf, *p; 46 static loff_t last; 47 int ret = 0; 48 49 if (repeat) 50 off = last + mtd->writesize; 51 52 last = off; 53 54 datbuf = memalign(ARCH_DMA_MINALIGN, mtd->writesize); 55 if (!datbuf) { 56 puts("No memory for page buffer\n"); 57 return 1; 58 } 59 60 oobbuf = memalign(ARCH_DMA_MINALIGN, mtd->oobsize); 61 if (!oobbuf) { 62 puts("No memory for page buffer\n"); 63 ret = 1; 64 goto free_dat; 65 } 66 off &= ~(mtd->writesize - 1); 67 loff_t addr = (loff_t) off; 68 struct mtd_oob_ops ops; 69 memset(&ops, 0, sizeof(ops)); 70 ops.datbuf = datbuf; 71 ops.oobbuf = oobbuf; 72 ops.len = mtd->writesize; 73 ops.ooblen = mtd->oobsize; 74 ops.mode = MTD_OPS_RAW; 75 i = mtd_read_oob(mtd, addr, &ops); 76 if (i < 0) { 77 printf("Error (%d) reading page %08lx\n", i, off); 78 ret = 1; 79 goto free_all; 80 } 81 printf("Page %08lx dump:\n", off); 82 83 if (!only_oob) { 84 i = mtd->writesize >> 4; 85 p = datbuf; 86 87 while (i--) { 88 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x" 89 " %02x %02x %02x %02x %02x %02x %02x %02x\n", 90 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], 91 p[8], p[9], p[10], p[11], p[12], p[13], p[14], 92 p[15]); 93 p += 16; 94 } 95 } 96 97 puts("OOB:\n"); 98 i = mtd->oobsize >> 3; 99 p = oobbuf; 100 while (i--) { 101 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n", 102 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); 103 p += 8; 104 } 105 106 free_all: 107 free(oobbuf); 108 free_dat: 109 free(datbuf); 110 111 return ret; 112 } 113 114 /* ------------------------------------------------------------------------- */ 115 116 static int set_dev(int dev) 117 { 118 struct mtd_info *mtd = get_nand_dev_by_index(dev); 119 120 if (!mtd) 121 return -ENODEV; 122 123 if (nand_curr_device == dev) 124 return 0; 125 126 printf("Device %d: %s", dev, mtd->name); 127 puts("... is now current device\n"); 128 nand_curr_device = dev; 129 130 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE 131 board_nand_select_device(mtd_to_nand(mtd), dev); 132 #endif 133 134 return 0; 135 } 136 137 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK 138 static void print_status(ulong start, ulong end, ulong erasesize, int status) 139 { 140 /* 141 * Micron NAND flash (e.g. MT29F4G08ABADAH4) BLOCK LOCK READ STATUS is 142 * not the same as others. Instead of bit 1 being lock, it is 143 * #lock_tight. To make the driver support either format, ignore bit 1 144 * and use only bit 0 and bit 2. 145 */ 146 printf("%08lx - %08lx: %08lx blocks %s%s%s\n", 147 start, 148 end - 1, 149 (end - start) / erasesize, 150 ((status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""), 151 (!(status & NAND_LOCK_STATUS_UNLOCK) ? "LOCK " : ""), 152 ((status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : "")); 153 } 154 155 static void do_nand_status(struct mtd_info *mtd) 156 { 157 ulong block_start = 0; 158 ulong off; 159 int last_status = -1; 160 161 struct nand_chip *nand_chip = mtd_to_nand(mtd); 162 /* check the WP bit */ 163 nand_chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1); 164 printf("device is %swrite protected\n", 165 (nand_chip->read_byte(mtd) & 0x80 ? 166 "NOT " : "")); 167 168 for (off = 0; off < mtd->size; off += mtd->erasesize) { 169 int s = nand_get_lock_status(mtd, off); 170 171 /* print message only if status has changed */ 172 if (s != last_status && off != 0) { 173 print_status(block_start, off, mtd->erasesize, 174 last_status); 175 block_start = off; 176 } 177 last_status = s; 178 } 179 /* Print the last block info */ 180 print_status(block_start, off, mtd->erasesize, last_status); 181 } 182 #endif 183 184 #ifdef CONFIG_ENV_OFFSET_OOB 185 unsigned long nand_env_oob_offset; 186 187 int do_nand_env_oob(cmd_tbl_t *cmdtp, int argc, char *const argv[]) 188 { 189 int ret; 190 uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)]; 191 struct mtd_info *mtd = get_nand_dev_by_index(0); 192 char *cmd = argv[1]; 193 194 if (CONFIG_SYS_MAX_NAND_DEVICE == 0 || !mtd) { 195 puts("no devices available\n"); 196 return 1; 197 } 198 199 set_dev(0); 200 201 if (!strcmp(cmd, "get")) { 202 ret = get_nand_env_oob(mtd, &nand_env_oob_offset); 203 if (ret) 204 return 1; 205 206 printf("0x%08lx\n", nand_env_oob_offset); 207 } else if (!strcmp(cmd, "set")) { 208 loff_t addr; 209 loff_t maxsize; 210 struct mtd_oob_ops ops; 211 int idx = 0; 212 213 if (argc < 3) 214 goto usage; 215 216 mtd = get_nand_dev_by_index(idx); 217 /* We don't care about size, or maxsize. */ 218 if (mtd_arg_off(argv[2], &idx, &addr, &maxsize, &maxsize, 219 MTD_DEV_TYPE_NAND, mtd->size)) { 220 puts("Offset or partition name expected\n"); 221 return 1; 222 } 223 if (set_dev(idx)) { 224 puts("Offset or partition name expected\n"); 225 return 1; 226 } 227 228 if (idx != 0) { 229 puts("Partition not on first NAND device\n"); 230 return 1; 231 } 232 233 if (mtd->oobavail < ENV_OFFSET_SIZE) { 234 printf("Insufficient available OOB bytes:\n" 235 "%d OOB bytes available but %d required for " 236 "env.oob support\n", 237 mtd->oobavail, ENV_OFFSET_SIZE); 238 return 1; 239 } 240 241 if ((addr & (mtd->erasesize - 1)) != 0) { 242 printf("Environment offset must be block-aligned\n"); 243 return 1; 244 } 245 246 ops.datbuf = NULL; 247 ops.mode = MTD_OOB_AUTO; 248 ops.ooboffs = 0; 249 ops.ooblen = ENV_OFFSET_SIZE; 250 ops.oobbuf = (void *) oob_buf; 251 252 oob_buf[0] = ENV_OOB_MARKER; 253 oob_buf[1] = addr / mtd->erasesize; 254 255 ret = mtd->write_oob(mtd, ENV_OFFSET_SIZE, &ops); 256 if (ret) { 257 printf("Error writing OOB block 0\n"); 258 return ret; 259 } 260 261 ret = get_nand_env_oob(mtd, &nand_env_oob_offset); 262 if (ret) { 263 printf("Error reading env offset in OOB\n"); 264 return ret; 265 } 266 267 if (addr != nand_env_oob_offset) { 268 printf("Verification of env offset in OOB failed: " 269 "0x%08llx expected but got 0x%08lx\n", 270 (unsigned long long)addr, nand_env_oob_offset); 271 return 1; 272 } 273 } else { 274 goto usage; 275 } 276 277 return ret; 278 279 usage: 280 return CMD_RET_USAGE; 281 } 282 283 #endif 284 285 static void nand_print_and_set_info(int idx) 286 { 287 struct mtd_info *mtd; 288 struct nand_chip *chip; 289 290 mtd = get_nand_dev_by_index(idx); 291 if (!mtd) 292 return; 293 294 chip = mtd_to_nand(mtd); 295 printf("Device %d: ", idx); 296 if (chip->numchips > 1) 297 printf("%dx ", chip->numchips); 298 printf("%s, sector size %u KiB\n", 299 mtd->name, mtd->erasesize >> 10); 300 printf(" Page size %8d b\n", mtd->writesize); 301 printf(" OOB size %8d b\n", mtd->oobsize); 302 printf(" Erase size %8d b\n", mtd->erasesize); 303 printf(" subpagesize %8d b\n", chip->subpagesize); 304 printf(" options 0x%08x\n", chip->options); 305 printf(" bbt options 0x%08x\n", chip->bbt_options); 306 307 /* Set geometry info */ 308 env_set_hex("nand_writesize", mtd->writesize); 309 env_set_hex("nand_oobsize", mtd->oobsize); 310 env_set_hex("nand_erasesize", mtd->erasesize); 311 } 312 313 static bool mtd_is_aligned_with_block_size(struct mtd_info *mtd, u64 size) 314 { 315 return !do_div(size, mtd->erasesize); 316 } 317 318 static int raw_access(struct mtd_info *mtd, ulong addr, loff_t off, 319 ulong count, int read, int no_verify) 320 { 321 int ret = 0; 322 323 while (count && (off + mtd->writesize) <= mtd->size) { 324 /* 325 * Skipping bad block interfaces meets practical usage 326 * requirements 327 */ 328 if (mtd_is_aligned_with_block_size(mtd, off) && 329 mtd_block_isbad(mtd, off)) { 330 printf("raw_access skip bad block 0x%08llx\n", 331 off & ~(mtd->erasesize - 1)); 332 off += mtd->erasesize; 333 continue; 334 } 335 336 /* Raw access */ 337 mtd_oob_ops_t ops = { 338 .datbuf = (u8 *)addr, 339 .oobbuf = ((u8 *)addr) + mtd->writesize, 340 .len = mtd->writesize, 341 .ooblen = mtd->oobsize, 342 .mode = MTD_OPS_RAW 343 }; 344 345 if (read) { 346 ret = mtd_read_oob(mtd, off, &ops); 347 } else { 348 ret = mtd_write_oob(mtd, off, &ops); 349 if (!ret && !no_verify) 350 ret = nand_verify_page_oob(mtd, &ops, off); 351 } 352 353 if (ret) { 354 printf("%s: error at offset %llx, ret %d\n", 355 __func__, (long long)off, ret); 356 break; 357 } 358 359 addr += mtd->writesize + mtd->oobsize; 360 off += mtd->writesize; 361 count--; 362 } 363 364 return ret; 365 } 366 367 /* Adjust a chip/partition size down for bad blocks so we don't 368 * read/write past the end of a chip/partition by accident. 369 */ 370 static void adjust_size_for_badblocks(loff_t *size, loff_t offset, int dev) 371 { 372 /* We grab the nand info object here fresh because this is usually 373 * called after arg_off_size() which can change the value of dev. 374 */ 375 struct mtd_info *mtd = get_nand_dev_by_index(dev); 376 loff_t maxoffset = offset + *size; 377 int badblocks = 0; 378 379 /* count badblocks in NAND from offset to offset + size */ 380 for (; offset < maxoffset; offset += mtd->erasesize) { 381 if (nand_block_isbad(mtd, offset)) 382 badblocks++; 383 } 384 /* adjust size if any bad blocks found */ 385 if (badblocks) { 386 *size -= badblocks * mtd->erasesize; 387 printf("size adjusted to 0x%llx (%d bad blocks)\n", 388 (unsigned long long)*size, badblocks); 389 } 390 } 391 392 static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 393 { 394 int i, ret = 0; 395 ulong addr; 396 loff_t off, size, maxsize; 397 char *cmd, *s; 398 struct mtd_info *mtd; 399 #ifdef CONFIG_SYS_NAND_QUIET 400 int quiet = CONFIG_SYS_NAND_QUIET; 401 #else 402 int quiet = 0; 403 #endif 404 const char *quiet_str = env_get("quiet"); 405 int dev = nand_curr_device; 406 int repeat = flag & CMD_FLAG_REPEAT; 407 408 /* at least two arguments please */ 409 if (argc < 2) 410 goto usage; 411 412 if (quiet_str) 413 quiet = simple_strtoul(quiet_str, NULL, 0) != 0; 414 415 cmd = argv[1]; 416 417 /* Only "dump" is repeatable. */ 418 if (repeat && strcmp(cmd, "dump")) 419 return 0; 420 421 if (strcmp(cmd, "info") == 0) { 422 423 putc('\n'); 424 for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) 425 nand_print_and_set_info(i); 426 return 0; 427 } 428 429 if (strcmp(cmd, "device") == 0) { 430 if (argc < 3) { 431 putc('\n'); 432 if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE) 433 puts("no devices available\n"); 434 else 435 nand_print_and_set_info(dev); 436 return 0; 437 } 438 439 dev = (int)simple_strtoul(argv[2], NULL, 10); 440 set_dev(dev); 441 442 return 0; 443 } 444 445 #ifdef CONFIG_ENV_OFFSET_OOB 446 /* this command operates only on the first nand device */ 447 if (strcmp(cmd, "env.oob") == 0) 448 return do_nand_env_oob(cmdtp, argc - 1, argv + 1); 449 #endif 450 451 /* The following commands operate on the current device, unless 452 * overridden by a partition specifier. Note that if somehow the 453 * current device is invalid, it will have to be changed to a valid 454 * one before these commands can run, even if a partition specifier 455 * for another device is to be used. 456 */ 457 mtd = get_nand_dev_by_index(dev); 458 if (!mtd) { 459 puts("\nno devices available\n"); 460 return 1; 461 } 462 463 if (strcmp(cmd, "bad") == 0) { 464 printf("\nDevice %d bad blocks:\n", dev); 465 for (off = 0; off < mtd->size; off += mtd->erasesize) 466 if (nand_block_isbad(mtd, off)) 467 printf(" %08llx\n", (unsigned long long)off); 468 return 0; 469 } 470 471 /* 472 * Syntax is: 473 * 0 1 2 3 4 474 * nand erase [clean] [off size] 475 */ 476 if (strncmp(cmd, "erase", 5) == 0 || strncmp(cmd, "scrub", 5) == 0) { 477 nand_erase_options_t opts; 478 /* "clean" at index 2 means request to write cleanmarker */ 479 int clean = argc > 2 && !strcmp("clean", argv[2]); 480 int scrub_yes = argc > 2 && !strcmp("-y", argv[2]); 481 int o = (clean || scrub_yes) ? 3 : 2; 482 int scrub = !strncmp(cmd, "scrub", 5); 483 int spread = 0; 484 int args = 2; 485 const char *scrub_warn = 486 "Warning: " 487 "scrub option will erase all factory set bad blocks!\n" 488 " " 489 "There is no reliable way to recover them.\n" 490 " " 491 "Use this command only for testing purposes if you\n" 492 " " 493 "are sure of what you are doing!\n" 494 "\nReally scrub this NAND flash? <y/N>\n"; 495 496 if (cmd[5] != 0) { 497 if (!strcmp(&cmd[5], ".spread")) { 498 spread = 1; 499 } else if (!strcmp(&cmd[5], ".part")) { 500 args = 1; 501 } else if (!strcmp(&cmd[5], ".chip")) { 502 args = 0; 503 } else { 504 goto usage; 505 } 506 } 507 508 /* 509 * Don't allow missing arguments to cause full chip/partition 510 * erases -- easy to do accidentally, e.g. with a misspelled 511 * variable name. 512 */ 513 if (argc != o + args) 514 goto usage; 515 516 printf("\nNAND %s: ", cmd); 517 /* skip first two or three arguments, look for offset and size */ 518 if (mtd_arg_off_size(argc - o, argv + o, &dev, &off, &size, 519 &maxsize, MTD_DEV_TYPE_NAND, 520 mtd->size) != 0) 521 return 1; 522 523 if (set_dev(dev)) 524 return 1; 525 526 mtd = get_nand_dev_by_index(dev); 527 528 memset(&opts, 0, sizeof(opts)); 529 opts.offset = off; 530 opts.length = size; 531 opts.jffs2 = clean; 532 opts.quiet = quiet; 533 opts.spread = spread; 534 535 if (scrub) { 536 if (scrub_yes) { 537 opts.scrub = 1; 538 } else { 539 puts(scrub_warn); 540 if (confirm_yesno()) { 541 opts.scrub = 1; 542 } else { 543 puts("scrub aborted\n"); 544 return 1; 545 } 546 } 547 } 548 ret = nand_erase_opts(mtd, &opts); 549 printf("%s\n", ret ? "ERROR" : "OK"); 550 551 return ret == 0 ? 0 : 1; 552 } 553 554 if (strncmp(cmd, "dump", 4) == 0) { 555 if (argc < 3) 556 goto usage; 557 558 off = (int)simple_strtoul(argv[2], NULL, 16); 559 ret = nand_dump(mtd, off, !strcmp(&cmd[4], ".oob"), repeat); 560 561 return ret == 0 ? 1 : 0; 562 } 563 564 if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) { 565 size_t rwsize; 566 ulong pagecount = 1; 567 int read; 568 int raw = 0; 569 int no_verify = 0; 570 571 if (argc < 4) 572 goto usage; 573 574 addr = (ulong)simple_strtoul(argv[2], NULL, 16); 575 576 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */ 577 printf("\nNAND %s: ", read ? "read" : "write"); 578 579 s = strchr(cmd, '.'); 580 581 if (s && !strncmp(s, ".raw", 4)) { 582 raw = 1; 583 584 if (!strcmp(s, ".raw.noverify")) 585 no_verify = 1; 586 587 if (mtd_arg_off(argv[3], &dev, &off, &size, &maxsize, 588 MTD_DEV_TYPE_NAND, 589 mtd->size)) 590 return 1; 591 592 if (set_dev(dev)) 593 return 1; 594 595 mtd = get_nand_dev_by_index(dev); 596 597 if (argc > 4 && !str2long(argv[4], &pagecount)) { 598 printf("'%s' is not a number\n", argv[4]); 599 return 1; 600 } 601 602 if (strncmp(cmd, "readbyte", 8) == 0 || strncmp(cmd, "writebyte", 9) == 0) { 603 if (pagecount % (mtd->writesize + mtd->oobsize)) { 604 printf("Count=%ld should be aligned with (writesize + oobsize)\n", pagecount); 605 return -1; 606 } 607 pagecount = pagecount / (mtd->writesize + mtd->oobsize); 608 } 609 610 if (pagecount * mtd->writesize > size) { 611 puts("Size exceeds partition or device limit\n"); 612 return -1; 613 } 614 615 rwsize = pagecount * (mtd->writesize + mtd->oobsize); 616 } else { 617 if (mtd_arg_off_size(argc - 3, argv + 3, &dev, &off, 618 &size, &maxsize, 619 MTD_DEV_TYPE_NAND, 620 mtd->size) != 0) 621 return 1; 622 623 if (set_dev(dev)) 624 return 1; 625 626 /* size is unspecified */ 627 if (argc < 5) 628 adjust_size_for_badblocks(&size, off, dev); 629 rwsize = size; 630 } 631 632 mtd = get_nand_dev_by_index(dev); 633 634 if (!s || !strcmp(s, ".jffs2") || 635 !strcmp(s, ".e") || !strcmp(s, ".i")) { 636 if (read) 637 ret = nand_read_skip_bad(mtd, off, &rwsize, 638 NULL, maxsize, 639 (u_char *)addr); 640 else 641 ret = nand_write_skip_bad(mtd, off, &rwsize, 642 NULL, maxsize, 643 (u_char *)addr, 644 WITH_WR_VERIFY); 645 #ifdef CONFIG_CMD_NAND_TRIMFFS 646 } else if (!strcmp(s, ".trimffs")) { 647 if (read) { 648 printf("Unknown nand command suffix '%s'\n", s); 649 return 1; 650 } 651 ret = nand_write_skip_bad(mtd, off, &rwsize, NULL, 652 maxsize, (u_char *)addr, 653 WITH_DROP_FFS | WITH_WR_VERIFY); 654 #endif 655 } else if (!strcmp(s, ".oob")) { 656 /* out-of-band data */ 657 mtd_oob_ops_t ops = { 658 .oobbuf = (u8 *)addr, 659 .ooblen = rwsize, 660 .mode = MTD_OPS_RAW 661 }; 662 663 if (read) 664 ret = mtd_read_oob(mtd, off, &ops); 665 else 666 ret = mtd_write_oob(mtd, off, &ops); 667 } else if (raw) { 668 ret = raw_access(mtd, addr, off, pagecount, read, 669 no_verify); 670 } else { 671 printf("Unknown nand command suffix '%s'.\n", s); 672 return 1; 673 } 674 675 printf(" %zu bytes %s: %s\n", rwsize, 676 read ? "read" : "written", ret ? "ERROR" : "OK"); 677 678 return ret == 0 ? 0 : 1; 679 } 680 681 #ifdef CONFIG_CMD_NAND_TORTURE 682 if (strcmp(cmd, "torture") == 0) { 683 loff_t endoff; 684 unsigned int failed = 0, passed = 0; 685 686 if (argc < 3) 687 goto usage; 688 689 if (!str2off(argv[2], &off)) { 690 puts("Offset is not a valid number\n"); 691 return 1; 692 } 693 694 size = mtd->erasesize; 695 if (argc > 3) { 696 if (!str2off(argv[3], &size)) { 697 puts("Size is not a valid number\n"); 698 return 1; 699 } 700 } 701 702 endoff = off + size; 703 if (endoff > mtd->size) { 704 puts("Arguments beyond end of NAND\n"); 705 return 1; 706 } 707 708 off = round_down(off, mtd->erasesize); 709 endoff = round_up(endoff, mtd->erasesize); 710 size = endoff - off; 711 printf("\nNAND torture: device %d offset 0x%llx size 0x%llx (block size 0x%x)\n", 712 dev, off, size, mtd->erasesize); 713 while (off < endoff) { 714 ret = nand_torture(mtd, off); 715 if (ret) { 716 failed++; 717 printf(" block at 0x%llx failed\n", off); 718 } else { 719 passed++; 720 } 721 off += mtd->erasesize; 722 } 723 printf(" Passed: %u, failed: %u\n", passed, failed); 724 return failed != 0; 725 } 726 #endif 727 728 if (strcmp(cmd, "markbad") == 0) { 729 argc -= 2; 730 argv += 2; 731 732 if (argc <= 0) 733 goto usage; 734 735 while (argc > 0) { 736 addr = simple_strtoul(*argv, NULL, 16); 737 738 if (mtd_block_markbad(mtd, addr)) { 739 printf("block 0x%08lx NOT marked " 740 "as bad! ERROR %d\n", 741 addr, ret); 742 ret = 1; 743 } else { 744 printf("block 0x%08lx successfully " 745 "marked as bad\n", 746 addr); 747 } 748 --argc; 749 ++argv; 750 } 751 return ret; 752 } 753 754 if (strcmp(cmd, "biterr") == 0) { 755 /* todo */ 756 return 1; 757 } 758 759 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK 760 if (strcmp(cmd, "lock") == 0) { 761 int tight = 0; 762 int status = 0; 763 if (argc == 3) { 764 if (!strcmp("tight", argv[2])) 765 tight = 1; 766 if (!strcmp("status", argv[2])) 767 status = 1; 768 } 769 if (status) { 770 do_nand_status(mtd); 771 } else { 772 if (!nand_lock(mtd, tight)) { 773 puts("NAND flash successfully locked\n"); 774 } else { 775 puts("Error locking NAND flash\n"); 776 return 1; 777 } 778 } 779 return 0; 780 } 781 782 if (strncmp(cmd, "unlock", 5) == 0) { 783 int allexcept = 0; 784 785 s = strchr(cmd, '.'); 786 787 if (s && !strcmp(s, ".allexcept")) 788 allexcept = 1; 789 790 if (mtd_arg_off_size(argc - 2, argv + 2, &dev, &off, &size, 791 &maxsize, MTD_DEV_TYPE_NAND, 792 mtd->size) < 0) 793 return 1; 794 795 if (set_dev(dev)) 796 return 1; 797 798 mtd = get_nand_dev_by_index(dev); 799 800 if (!nand_unlock(mtd, off, size, allexcept)) { 801 puts("NAND flash successfully unlocked\n"); 802 } else { 803 puts("Error unlocking NAND flash, " 804 "write and erase will probably fail\n"); 805 return 1; 806 } 807 return 0; 808 } 809 #endif 810 811 usage: 812 return CMD_RET_USAGE; 813 } 814 815 #ifdef CONFIG_SYS_LONGHELP 816 static char nand_help_text[] = 817 "info - show available NAND devices\n" 818 "nand device [dev] - show or set current device\n" 819 "nand read - addr off|partition size\n" 820 "nand write - addr off|partition size\n" 821 " read/write 'size' bytes starting at offset 'off'\n" 822 " to/from memory address 'addr', skipping bad blocks.\n" 823 "nand read.raw - addr off|partition [count]\n" 824 "nand write.raw[.noverify] - addr off|partition [count]\n" 825 " Use read.raw/write.raw to avoid ECC and access the flash as-is,\n" 826 " and skip bad\n" 827 #ifdef CONFIG_CMD_NAND_TRIMFFS 828 "nand write.trimffs - addr off|partition size\n" 829 " write 'size' bytes starting at offset 'off' from memory address\n" 830 " 'addr', skipping bad blocks and dropping any pages at the end\n" 831 " of eraseblocks that contain only 0xFF\n" 832 #endif 833 "nand erase[.spread] [clean] off size - erase 'size' bytes " 834 "from offset 'off'\n" 835 " With '.spread', erase enough for given file size, otherwise,\n" 836 " 'size' includes skipped bad blocks.\n" 837 "nand erase.part [clean] partition - erase entire mtd partition'\n" 838 "nand erase.chip [clean] - erase entire chip'\n" 839 "nand bad - show bad blocks\n" 840 "nand dump[.oob] off - dump page\n" 841 #ifdef CONFIG_CMD_NAND_TORTURE 842 "nand torture off - torture one block at offset\n" 843 "nand torture off [size] - torture blocks from off to off+size\n" 844 #endif 845 "nand scrub [-y] off size | scrub.part partition | scrub.chip\n" 846 " really clean NAND erasing bad blocks (UNSAFE)\n" 847 "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n" 848 "nand biterr off - make a bit error at offset (UNSAFE)" 849 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK 850 "\n" 851 "nand lock [tight] [status]\n" 852 " bring nand to lock state or display locked pages\n" 853 "nand unlock[.allexcept] [offset] [size] - unlock section" 854 #endif 855 #ifdef CONFIG_ENV_OFFSET_OOB 856 "\n" 857 "nand env.oob - environment offset in OOB of block 0 of" 858 " first device.\n" 859 "nand env.oob set off|partition - set enviromnent offset\n" 860 "nand env.oob get - get environment offset" 861 #endif 862 ""; 863 #endif 864 865 U_BOOT_CMD( 866 nand, CONFIG_SYS_MAXARGS, 1, do_nand, 867 "NAND sub-system", nand_help_text 868 ); 869 870 static int nand_load_image(cmd_tbl_t *cmdtp, struct mtd_info *mtd, 871 ulong offset, ulong addr, char *cmd) 872 { 873 int r; 874 char *s; 875 size_t cnt; 876 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 877 image_header_t *hdr; 878 #endif 879 #if defined(CONFIG_FIT) 880 const void *fit_hdr = NULL; 881 #endif 882 883 s = strchr(cmd, '.'); 884 if (s != NULL && 885 (strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) { 886 printf("Unknown nand load suffix '%s'\n", s); 887 bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX); 888 return 1; 889 } 890 891 printf("\nLoading from %s, offset 0x%lx\n", mtd->name, offset); 892 893 cnt = mtd->writesize; 894 r = nand_read_skip_bad(mtd, offset, &cnt, NULL, mtd->size, 895 (u_char *)addr); 896 if (r) { 897 puts("** Read error\n"); 898 bootstage_error(BOOTSTAGE_ID_NAND_HDR_READ); 899 return 1; 900 } 901 bootstage_mark(BOOTSTAGE_ID_NAND_HDR_READ); 902 903 switch (genimg_get_format ((void *)addr)) { 904 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 905 case IMAGE_FORMAT_LEGACY: 906 hdr = (image_header_t *)addr; 907 908 bootstage_mark(BOOTSTAGE_ID_NAND_TYPE); 909 image_print_contents (hdr); 910 911 cnt = image_get_image_size (hdr); 912 break; 913 #endif 914 #if defined(CONFIG_FIT) 915 case IMAGE_FORMAT_FIT: 916 fit_hdr = (const void *)addr; 917 puts ("Fit image detected...\n"); 918 919 cnt = fit_get_size (fit_hdr); 920 break; 921 #endif 922 default: 923 bootstage_error(BOOTSTAGE_ID_NAND_TYPE); 924 puts ("** Unknown image type\n"); 925 return 1; 926 } 927 bootstage_mark(BOOTSTAGE_ID_NAND_TYPE); 928 929 r = nand_read_skip_bad(mtd, offset, &cnt, NULL, mtd->size, 930 (u_char *)addr); 931 if (r) { 932 puts("** Read error\n"); 933 bootstage_error(BOOTSTAGE_ID_NAND_READ); 934 return 1; 935 } 936 bootstage_mark(BOOTSTAGE_ID_NAND_READ); 937 938 #if defined(CONFIG_FIT) 939 /* This cannot be done earlier, we need complete FIT image in RAM first */ 940 if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) { 941 if (!fit_check_format (fit_hdr)) { 942 bootstage_error(BOOTSTAGE_ID_NAND_FIT_READ); 943 puts ("** Bad FIT image format\n"); 944 return 1; 945 } 946 bootstage_mark(BOOTSTAGE_ID_NAND_FIT_READ_OK); 947 fit_print_contents (fit_hdr); 948 } 949 #endif 950 951 /* Loading ok, update default load address */ 952 953 load_addr = addr; 954 955 return bootm_maybe_autostart(cmdtp, cmd); 956 } 957 958 static int do_nandboot(cmd_tbl_t *cmdtp, int flag, int argc, 959 char * const argv[]) 960 { 961 char *boot_device = NULL; 962 int idx; 963 ulong addr, offset = 0; 964 struct mtd_info *mtd; 965 #if defined(CONFIG_CMD_MTDPARTS) 966 struct mtd_device *dev; 967 struct part_info *part; 968 u8 pnum; 969 970 if (argc >= 2) { 971 char *p = (argc == 2) ? argv[1] : argv[2]; 972 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) && 973 (find_dev_and_part(p, &dev, &pnum, &part) == 0)) { 974 if (dev->id->type != MTD_DEV_TYPE_NAND) { 975 puts("Not a NAND device\n"); 976 return 1; 977 } 978 if (argc > 3) 979 goto usage; 980 if (argc == 3) 981 addr = simple_strtoul(argv[1], NULL, 16); 982 else 983 addr = CONFIG_SYS_LOAD_ADDR; 984 985 mtd = get_nand_dev_by_index(dev->id->num); 986 return nand_load_image(cmdtp, mtd, part->offset, 987 addr, argv[0]); 988 } 989 } 990 #endif 991 992 bootstage_mark(BOOTSTAGE_ID_NAND_PART); 993 switch (argc) { 994 case 1: 995 addr = CONFIG_SYS_LOAD_ADDR; 996 boot_device = env_get("bootdevice"); 997 break; 998 case 2: 999 addr = simple_strtoul(argv[1], NULL, 16); 1000 boot_device = env_get("bootdevice"); 1001 break; 1002 case 3: 1003 addr = simple_strtoul(argv[1], NULL, 16); 1004 boot_device = argv[2]; 1005 break; 1006 case 4: 1007 addr = simple_strtoul(argv[1], NULL, 16); 1008 boot_device = argv[2]; 1009 offset = simple_strtoul(argv[3], NULL, 16); 1010 break; 1011 default: 1012 #if defined(CONFIG_CMD_MTDPARTS) 1013 usage: 1014 #endif 1015 bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX); 1016 return CMD_RET_USAGE; 1017 } 1018 bootstage_mark(BOOTSTAGE_ID_NAND_SUFFIX); 1019 1020 if (!boot_device) { 1021 puts("\n** No boot device **\n"); 1022 bootstage_error(BOOTSTAGE_ID_NAND_BOOT_DEVICE); 1023 return 1; 1024 } 1025 bootstage_mark(BOOTSTAGE_ID_NAND_BOOT_DEVICE); 1026 1027 idx = simple_strtoul(boot_device, NULL, 16); 1028 1029 mtd = get_nand_dev_by_index(idx); 1030 if (!mtd) { 1031 printf("\n** Device %d not available\n", idx); 1032 bootstage_error(BOOTSTAGE_ID_NAND_AVAILABLE); 1033 return 1; 1034 } 1035 bootstage_mark(BOOTSTAGE_ID_NAND_AVAILABLE); 1036 1037 return nand_load_image(cmdtp, mtd, offset, addr, argv[0]); 1038 } 1039 1040 U_BOOT_CMD(nboot, 4, 1, do_nandboot, 1041 "boot from NAND device", 1042 "[partition] | [[[loadAddr] dev] offset]" 1043 ); 1044