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22#include <common.h>
23#include <bootstage.h>
24#include <image.h>
25#include <asm/cache.h>
26#include <linux/mtd/mtd.h>
27#include <command.h>
28#include <console.h>
29#include <env.h>
30#include <watchdog.h>
31#include <malloc.h>
32#include <asm/byteorder.h>
33#include <jffs2/jffs2.h>
34#include <nand.h>
35
36#include "legacy-mtd-utils.h"
37
38#if defined(CONFIG_CMD_MTDPARTS)
39
40
41int mtdparts_init(void);
42int find_dev_and_part(const char *id, struct mtd_device **dev,
43 u8 *part_num, struct part_info **part);
44#endif
45
46static int nand_dump(struct mtd_info *mtd, ulong off, int only_oob,
47 int repeat)
48{
49 int i;
50 u_char *datbuf, *oobbuf, *p;
51 static loff_t last;
52 int ret = 0;
53
54 if (repeat)
55 off = last + mtd->writesize;
56
57 last = off;
58
59 datbuf = memalign(ARCH_DMA_MINALIGN, mtd->writesize);
60 if (!datbuf) {
61 puts("No memory for page buffer\n");
62 return 1;
63 }
64
65 oobbuf = memalign(ARCH_DMA_MINALIGN, mtd->oobsize);
66 if (!oobbuf) {
67 puts("No memory for page buffer\n");
68 ret = 1;
69 goto free_dat;
70 }
71 off &= ~(mtd->writesize - 1);
72 loff_t addr = (loff_t) off;
73 struct mtd_oob_ops ops;
74 memset(&ops, 0, sizeof(ops));
75 ops.datbuf = datbuf;
76 ops.oobbuf = oobbuf;
77 ops.len = mtd->writesize;
78 ops.ooblen = mtd->oobsize;
79 ops.mode = MTD_OPS_RAW;
80 i = mtd_read_oob(mtd, addr, &ops);
81 if (i < 0) {
82 printf("Error (%d) reading page %08lx\n", i, off);
83 ret = 1;
84 goto free_all;
85 }
86 printf("Page %08lx dump:\n", off);
87
88 if (!only_oob) {
89 i = mtd->writesize >> 4;
90 p = datbuf;
91
92 while (i--) {
93 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
94 " %02x %02x %02x %02x %02x %02x %02x %02x\n",
95 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
96 p[8], p[9], p[10], p[11], p[12], p[13], p[14],
97 p[15]);
98 p += 16;
99 }
100 }
101
102 puts("OOB:\n");
103 i = mtd->oobsize >> 3;
104 p = oobbuf;
105 while (i--) {
106 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
107 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
108 p += 8;
109 }
110
111free_all:
112 free(oobbuf);
113free_dat:
114 free(datbuf);
115
116 return ret;
117}
118
119
120
121static int set_dev(int dev)
122{
123 struct mtd_info *mtd = get_nand_dev_by_index(dev);
124
125 if (!mtd)
126 return -ENODEV;
127
128 if (nand_curr_device == dev)
129 return 0;
130
131 printf("Device %d: %s", dev, mtd->name);
132 puts("... is now current device\n");
133 nand_curr_device = dev;
134
135#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
136 board_nand_select_device(mtd_to_nand(mtd), dev);
137#endif
138
139 return 0;
140}
141
142#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
143static void print_status(ulong start, ulong end, ulong erasesize, int status)
144{
145
146
147
148
149
150
151 printf("%08lx - %08lx: %08lx blocks %s%s%s\n",
152 start,
153 end - 1,
154 (end - start) / erasesize,
155 ((status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
156 (!(status & NAND_LOCK_STATUS_UNLOCK) ? "LOCK " : ""),
157 ((status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
158}
159
160static void do_nand_status(struct mtd_info *mtd)
161{
162 ulong block_start = 0;
163 ulong off;
164 int last_status = -1;
165
166 struct nand_chip *nand_chip = mtd_to_nand(mtd);
167
168 nand_chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
169 printf("device is %swrite protected\n",
170 (nand_chip->read_byte(mtd) & 0x80 ?
171 "NOT " : ""));
172
173 for (off = 0; off < mtd->size; off += mtd->erasesize) {
174 int s = nand_get_lock_status(mtd, off);
175
176
177 if (s != last_status && off != 0) {
178 print_status(block_start, off, mtd->erasesize,
179 last_status);
180 block_start = off;
181 }
182 last_status = s;
183 }
184
185 print_status(block_start, off, mtd->erasesize, last_status);
186}
187#endif
188
189#ifdef CONFIG_ENV_OFFSET_OOB
190unsigned long nand_env_oob_offset;
191
192int do_nand_env_oob(struct cmd_tbl *cmdtp, int argc, char *const argv[])
193{
194 int ret;
195 uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)];
196 struct mtd_info *mtd = get_nand_dev_by_index(0);
197 char *cmd = argv[1];
198
199 if (CONFIG_SYS_MAX_NAND_DEVICE == 0 || !mtd) {
200 puts("no devices available\n");
201 return 1;
202 }
203
204 set_dev(0);
205
206 if (!strcmp(cmd, "get")) {
207 ret = get_nand_env_oob(mtd, &nand_env_oob_offset);
208 if (ret)
209 return 1;
210
211 printf("0x%08lx\n", nand_env_oob_offset);
212 } else if (!strcmp(cmd, "set")) {
213 loff_t addr;
214 loff_t maxsize;
215 struct mtd_oob_ops ops;
216 int idx = 0;
217
218 if (argc < 3)
219 goto usage;
220
221 mtd = get_nand_dev_by_index(idx);
222
223 if (mtd_arg_off(argv[2], &idx, &addr, &maxsize, &maxsize,
224 MTD_DEV_TYPE_NAND, mtd->size)) {
225 puts("Offset or partition name expected\n");
226 return 1;
227 }
228 if (set_dev(idx)) {
229 puts("Offset or partition name expected\n");
230 return 1;
231 }
232
233 if (idx != 0) {
234 puts("Partition not on first NAND device\n");
235 return 1;
236 }
237
238 if (mtd->oobavail < ENV_OFFSET_SIZE) {
239 printf("Insufficient available OOB bytes:\n"
240 "%d OOB bytes available but %d required for "
241 "env.oob support\n",
242 mtd->oobavail, ENV_OFFSET_SIZE);
243 return 1;
244 }
245
246 if ((addr & (mtd->erasesize - 1)) != 0) {
247 printf("Environment offset must be block-aligned\n");
248 return 1;
249 }
250
251 ops.datbuf = NULL;
252 ops.mode = MTD_OOB_AUTO;
253 ops.ooboffs = 0;
254 ops.ooblen = ENV_OFFSET_SIZE;
255 ops.oobbuf = (void *) oob_buf;
256
257 oob_buf[0] = ENV_OOB_MARKER;
258 oob_buf[1] = addr / mtd->erasesize;
259
260 ret = mtd->write_oob(mtd, ENV_OFFSET_SIZE, &ops);
261 if (ret) {
262 printf("Error writing OOB block 0\n");
263 return ret;
264 }
265
266 ret = get_nand_env_oob(mtd, &nand_env_oob_offset);
267 if (ret) {
268 printf("Error reading env offset in OOB\n");
269 return ret;
270 }
271
272 if (addr != nand_env_oob_offset) {
273 printf("Verification of env offset in OOB failed: "
274 "0x%08llx expected but got 0x%08lx\n",
275 (unsigned long long)addr, nand_env_oob_offset);
276 return 1;
277 }
278 } else {
279 goto usage;
280 }
281
282 return ret;
283
284usage:
285 return CMD_RET_USAGE;
286}
287
288#endif
289
290static void nand_print_and_set_info(int idx)
291{
292 struct mtd_info *mtd;
293 struct nand_chip *chip;
294
295 mtd = get_nand_dev_by_index(idx);
296 if (!mtd)
297 return;
298
299 chip = mtd_to_nand(mtd);
300 printf("Device %d: ", idx);
301 if (chip->numchips > 1)
302 printf("%dx ", chip->numchips);
303 printf("%s, sector size %u KiB\n",
304 mtd->name, mtd->erasesize >> 10);
305 printf(" Page size %8d b\n", mtd->writesize);
306 printf(" OOB size %8d b\n", mtd->oobsize);
307 printf(" Erase size %8d b\n", mtd->erasesize);
308 printf(" subpagesize %8d b\n", chip->subpagesize);
309 printf(" options 0x%08x\n", chip->options);
310 printf(" bbt options 0x%08x\n", chip->bbt_options);
311
312
313 env_set_hex("nand_writesize", mtd->writesize);
314 env_set_hex("nand_oobsize", mtd->oobsize);
315 env_set_hex("nand_erasesize", mtd->erasesize);
316}
317
318static 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--) {
324
325 mtd_oob_ops_t ops = {
326 .datbuf = (u8 *)addr,
327 .oobbuf = ((u8 *)addr) + mtd->writesize,
328 .len = mtd->writesize,
329 .ooblen = mtd->oobsize,
330 .mode = MTD_OPS_RAW
331 };
332
333 if (read) {
334 ret = mtd_read_oob(mtd, off, &ops);
335 } else {
336 ret = mtd_write_oob(mtd, off, &ops);
337 if (!ret && !no_verify)
338 ret = nand_verify_page_oob(mtd, &ops, off);
339 }
340
341 if (ret) {
342 printf("%s: error at offset %llx, ret %d\n",
343 __func__, (long long)off, ret);
344 break;
345 }
346
347 addr += mtd->writesize + mtd->oobsize;
348 off += mtd->writesize;
349 }
350
351 return ret;
352}
353
354
355
356
357static void adjust_size_for_badblocks(loff_t *size, loff_t offset, int dev)
358{
359
360
361
362 struct mtd_info *mtd = get_nand_dev_by_index(dev);
363 loff_t maxoffset = offset + *size;
364 int badblocks = 0;
365
366
367 for (; offset < maxoffset; offset += mtd->erasesize) {
368 if (nand_block_isbad(mtd, offset))
369 badblocks++;
370 }
371
372 if (badblocks) {
373 *size -= badblocks * mtd->erasesize;
374 printf("size adjusted to 0x%llx (%d bad blocks)\n",
375 (unsigned long long)*size, badblocks);
376 }
377}
378
379static int do_nand(struct cmd_tbl *cmdtp, int flag, int argc,
380 char *const argv[])
381{
382 int i, ret = 0;
383 ulong addr;
384 loff_t off, size, maxsize;
385 char *cmd, *s;
386 struct mtd_info *mtd;
387#ifdef CONFIG_SYS_NAND_QUIET
388 int quiet = CONFIG_SYS_NAND_QUIET;
389#else
390 int quiet = 0;
391#endif
392 const char *quiet_str = env_get("quiet");
393 int dev = nand_curr_device;
394 int repeat = flag & CMD_FLAG_REPEAT;
395
396
397 if (argc < 2)
398 goto usage;
399
400 if (quiet_str)
401 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
402
403 cmd = argv[1];
404
405
406 if (repeat && strcmp(cmd, "dump"))
407 return 0;
408
409 if (strcmp(cmd, "info") == 0) {
410
411 putc('\n');
412 for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
413 nand_print_and_set_info(i);
414 return 0;
415 }
416
417 if (strcmp(cmd, "device") == 0) {
418 if (argc < 3) {
419 putc('\n');
420 if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE)
421 puts("no devices available\n");
422 else
423 nand_print_and_set_info(dev);
424 return 0;
425 }
426
427 dev = (int)dectoul(argv[2], NULL);
428 set_dev(dev);
429
430 return 0;
431 }
432
433#ifdef CONFIG_ENV_OFFSET_OOB
434
435 if (strcmp(cmd, "env.oob") == 0)
436 return do_nand_env_oob(cmdtp, argc - 1, argv + 1);
437#endif
438
439
440
441
442
443
444
445 mtd = get_nand_dev_by_index(dev);
446 if (!mtd) {
447 puts("\nno devices available\n");
448 return 1;
449 }
450
451 if (strcmp(cmd, "bad") == 0) {
452 printf("\nDevice %d bad blocks:\n", dev);
453 for (off = 0; off < mtd->size; off += mtd->erasesize)
454 if (nand_block_isbad(mtd, off))
455 printf(" %08llx\n", (unsigned long long)off);
456 return 0;
457 }
458
459
460
461
462
463
464 if (strncmp(cmd, "erase", 5) == 0 || strncmp(cmd, "scrub", 5) == 0) {
465 nand_erase_options_t opts;
466
467 int clean = argc > 2 && !strcmp("clean", argv[2]);
468 int scrub_yes = argc > 2 && !strcmp("-y", argv[2]);
469 int o = (clean || scrub_yes) ? 3 : 2;
470 int scrub = !strncmp(cmd, "scrub", 5);
471 int spread = 0;
472 int args = 2;
473 const char *scrub_warn =
474 "Warning: "
475 "scrub option will erase all factory set bad blocks!\n"
476 " "
477 "There is no reliable way to recover them.\n"
478 " "
479 "Use this command only for testing purposes if you\n"
480 " "
481 "are sure of what you are doing!\n"
482 "\nReally scrub this NAND flash? <y/N>\n";
483
484 if (cmd[5] != 0) {
485 if (!strcmp(&cmd[5], ".spread")) {
486 spread = 1;
487 } else if (!strcmp(&cmd[5], ".part")) {
488 args = 1;
489 } else if (!strcmp(&cmd[5], ".chip")) {
490 args = 0;
491 } else {
492 goto usage;
493 }
494 }
495
496
497
498
499
500
501 if (argc != o + args)
502 goto usage;
503
504 printf("\nNAND %s: ", cmd);
505
506 if (mtd_arg_off_size(argc - o, argv + o, &dev, &off, &size,
507 &maxsize, MTD_DEV_TYPE_NAND,
508 mtd->size) != 0)
509 return 1;
510
511 if (set_dev(dev))
512 return 1;
513
514 mtd = get_nand_dev_by_index(dev);
515
516 memset(&opts, 0, sizeof(opts));
517 opts.offset = off;
518 opts.length = size;
519 opts.jffs2 = clean;
520 opts.quiet = quiet;
521 opts.spread = spread;
522
523 if (scrub) {
524 if (scrub_yes) {
525 opts.scrub = 1;
526 } else {
527 puts(scrub_warn);
528 if (confirm_yesno()) {
529 opts.scrub = 1;
530 } else {
531 puts("scrub aborted\n");
532 return 1;
533 }
534 }
535 }
536 ret = nand_erase_opts(mtd, &opts);
537 printf("%s\n", ret ? "ERROR" : "OK");
538
539 return ret == 0 ? 0 : 1;
540 }
541
542 if (strncmp(cmd, "dump", 4) == 0) {
543 if (argc < 3)
544 goto usage;
545
546 off = (int)hextoul(argv[2], NULL);
547 ret = nand_dump(mtd, off, !strcmp(&cmd[4], ".oob"), repeat);
548
549 return ret == 0 ? 1 : 0;
550 }
551
552 if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
553 size_t rwsize;
554 ulong pagecount = 1;
555 int read;
556 int raw = 0;
557 int no_verify = 0;
558
559 if (argc < 4)
560 goto usage;
561
562 addr = (ulong)hextoul(argv[2], NULL);
563
564 read = strncmp(cmd, "read", 4) == 0;
565 printf("\nNAND %s: ", read ? "read" : "write");
566
567 s = strchr(cmd, '.');
568
569 if (s && !strncmp(s, ".raw", 4)) {
570 raw = 1;
571
572 if (!strcmp(s, ".raw.noverify"))
573 no_verify = 1;
574
575 if (mtd_arg_off(argv[3], &dev, &off, &size, &maxsize,
576 MTD_DEV_TYPE_NAND,
577 mtd->size))
578 return 1;
579
580 if (set_dev(dev))
581 return 1;
582
583 mtd = get_nand_dev_by_index(dev);
584
585 if (argc > 4 && !str2long(argv[4], &pagecount)) {
586 printf("'%s' is not a number\n", argv[4]);
587 return 1;
588 }
589
590 if (pagecount * mtd->writesize > size) {
591 puts("Size exceeds partition or device limit\n");
592 return -1;
593 }
594
595 rwsize = pagecount * (mtd->writesize + mtd->oobsize);
596 } else {
597 if (mtd_arg_off_size(argc - 3, argv + 3, &dev, &off,
598 &size, &maxsize,
599 MTD_DEV_TYPE_NAND,
600 mtd->size) != 0)
601 return 1;
602
603 if (set_dev(dev))
604 return 1;
605
606
607 if (argc < 5)
608 adjust_size_for_badblocks(&size, off, dev);
609 rwsize = size;
610 }
611
612 mtd = get_nand_dev_by_index(dev);
613
614 if (!s || !strcmp(s, ".jffs2") ||
615 !strcmp(s, ".e") || !strcmp(s, ".i")) {
616 if (read)
617 ret = nand_read_skip_bad(mtd, off, &rwsize,
618 NULL, maxsize,
619 (u_char *)addr);
620 else
621 ret = nand_write_skip_bad(mtd, off, &rwsize,
622 NULL, maxsize,
623 (u_char *)addr,
624 WITH_WR_VERIFY);
625#ifdef CONFIG_CMD_NAND_TRIMFFS
626 } else if (!strcmp(s, ".trimffs")) {
627 if (read) {
628 printf("Unknown nand command suffix '%s'\n", s);
629 return 1;
630 }
631 ret = nand_write_skip_bad(mtd, off, &rwsize, NULL,
632 maxsize, (u_char *)addr,
633 WITH_DROP_FFS | WITH_WR_VERIFY);
634#endif
635 } else if (!strcmp(s, ".oob")) {
636
637 mtd_oob_ops_t ops = {
638 .oobbuf = (u8 *)addr,
639 .ooblen = rwsize,
640 .mode = MTD_OPS_RAW
641 };
642
643 if (read)
644 ret = mtd_read_oob(mtd, off, &ops);
645 else
646 ret = mtd_write_oob(mtd, off, &ops);
647 } else if (raw) {
648 ret = raw_access(mtd, addr, off, pagecount, read,
649 no_verify);
650 } else {
651 printf("Unknown nand command suffix '%s'.\n", s);
652 return 1;
653 }
654
655 printf(" %zu bytes %s: %s\n", rwsize,
656 read ? "read" : "written", ret ? "ERROR" : "OK");
657
658 return ret == 0 ? 0 : 1;
659 }
660
661#ifdef CONFIG_CMD_NAND_TORTURE
662 if (strcmp(cmd, "torture") == 0) {
663 loff_t endoff;
664 unsigned int failed = 0, passed = 0;
665
666 if (argc < 3)
667 goto usage;
668
669 if (!str2off(argv[2], &off)) {
670 puts("Offset is not a valid number\n");
671 return 1;
672 }
673
674 size = mtd->erasesize;
675 if (argc > 3) {
676 if (!str2off(argv[3], &size)) {
677 puts("Size is not a valid number\n");
678 return 1;
679 }
680 }
681
682 endoff = off + size;
683 if (endoff > mtd->size) {
684 puts("Arguments beyond end of NAND\n");
685 return 1;
686 }
687
688 off = round_down(off, mtd->erasesize);
689 endoff = round_up(endoff, mtd->erasesize);
690 size = endoff - off;
691 printf("\nNAND torture: device %d offset 0x%llx size 0x%llx (block size 0x%x)\n",
692 dev, off, size, mtd->erasesize);
693 while (off < endoff) {
694 ret = nand_torture(mtd, off);
695 if (ret) {
696 failed++;
697 printf(" block at 0x%llx failed\n", off);
698 } else {
699 passed++;
700 }
701 off += mtd->erasesize;
702 }
703 printf(" Passed: %u, failed: %u\n", passed, failed);
704 return failed != 0;
705 }
706#endif
707
708 if (strcmp(cmd, "markbad") == 0) {
709 argc -= 2;
710 argv += 2;
711
712 if (argc <= 0)
713 goto usage;
714
715 while (argc > 0) {
716 addr = hextoul(*argv, NULL);
717
718 if (mtd_block_markbad(mtd, addr)) {
719 printf("block 0x%08lx NOT marked "
720 "as bad! ERROR %d\n",
721 addr, ret);
722 ret = 1;
723 } else {
724 printf("block 0x%08lx successfully "
725 "marked as bad\n",
726 addr);
727 }
728 --argc;
729 ++argv;
730 }
731 return ret;
732 }
733
734 if (strcmp(cmd, "biterr") == 0) {
735
736 return 1;
737 }
738
739#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
740 if (strcmp(cmd, "lock") == 0) {
741 int tight = 0;
742 int status = 0;
743 if (argc == 3) {
744 if (!strcmp("tight", argv[2]))
745 tight = 1;
746 if (!strcmp("status", argv[2]))
747 status = 1;
748 }
749 if (status) {
750 do_nand_status(mtd);
751 } else {
752 if (!nand_lock(mtd, tight)) {
753 puts("NAND flash successfully locked\n");
754 } else {
755 puts("Error locking NAND flash\n");
756 return 1;
757 }
758 }
759 return 0;
760 }
761
762 if (strncmp(cmd, "unlock", 5) == 0) {
763 int allexcept = 0;
764
765 s = strchr(cmd, '.');
766
767 if (s && !strcmp(s, ".allexcept"))
768 allexcept = 1;
769
770 if (mtd_arg_off_size(argc - 2, argv + 2, &dev, &off, &size,
771 &maxsize, MTD_DEV_TYPE_NAND,
772 mtd->size) < 0)
773 return 1;
774
775 if (set_dev(dev))
776 return 1;
777
778 mtd = get_nand_dev_by_index(dev);
779
780 if (!nand_unlock(mtd, off, size, allexcept)) {
781 puts("NAND flash successfully unlocked\n");
782 } else {
783 puts("Error unlocking NAND flash, "
784 "write and erase will probably fail\n");
785 return 1;
786 }
787 return 0;
788 }
789#endif
790
791usage:
792 return CMD_RET_USAGE;
793}
794
795#ifdef CONFIG_SYS_LONGHELP
796static char nand_help_text[] =
797 "info - show available NAND devices\n"
798 "nand device [dev] - show or set current device\n"
799 "nand read - addr off|partition size\n"
800 "nand write - addr off|partition size\n"
801 " read/write 'size' bytes starting at offset 'off'\n"
802 " to/from memory address 'addr', skipping bad blocks.\n"
803 "nand read.raw - addr off|partition [count]\n"
804 "nand write.raw[.noverify] - addr off|partition [count]\n"
805 " Use read.raw/write.raw to avoid ECC and access the flash as-is.\n"
806#ifdef CONFIG_CMD_NAND_TRIMFFS
807 "nand write.trimffs - addr off|partition size\n"
808 " write 'size' bytes starting at offset 'off' from memory address\n"
809 " 'addr', skipping bad blocks and dropping any pages at the end\n"
810 " of eraseblocks that contain only 0xFF\n"
811#endif
812 "nand erase[.spread] [clean] off size - erase 'size' bytes "
813 "from offset 'off'\n"
814 " With '.spread', erase enough for given file size, otherwise,\n"
815 " 'size' includes skipped bad blocks.\n"
816 "nand erase.part [clean] partition - erase entire mtd partition'\n"
817 "nand erase.chip [clean] - erase entire chip'\n"
818 "nand bad - show bad blocks\n"
819 "nand dump[.oob] off - dump page\n"
820#ifdef CONFIG_CMD_NAND_TORTURE
821 "nand torture off - torture one block at offset\n"
822 "nand torture off [size] - torture blocks from off to off+size\n"
823#endif
824 "nand scrub [-y] off size | scrub.part partition | scrub.chip\n"
825 " really clean NAND erasing bad blocks (UNSAFE)\n"
826 "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n"
827 "nand biterr off - make a bit error at offset (UNSAFE)"
828#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
829 "\n"
830 "nand lock [tight] [status]\n"
831 " bring nand to lock state or display locked pages\n"
832 "nand unlock[.allexcept] [offset] [size] - unlock section"
833#endif
834#ifdef CONFIG_ENV_OFFSET_OOB
835 "\n"
836 "nand env.oob - environment offset in OOB of block 0 of"
837 " first device.\n"
838 "nand env.oob set off|partition - set enviromnent offset\n"
839 "nand env.oob get - get environment offset"
840#endif
841 "";
842#endif
843
844U_BOOT_CMD(
845 nand, CONFIG_SYS_MAXARGS, 1, do_nand,
846 "NAND sub-system", nand_help_text
847);
848
849static int nand_load_image(struct cmd_tbl *cmdtp, struct mtd_info *mtd,
850 ulong offset, ulong addr, char *cmd)
851{
852 int r;
853 char *s;
854 size_t cnt;
855#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
856 image_header_t *hdr;
857#endif
858#if defined(CONFIG_FIT)
859 const void *fit_hdr = NULL;
860#endif
861
862 s = strchr(cmd, '.');
863 if (s != NULL &&
864 (strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) {
865 printf("Unknown nand load suffix '%s'\n", s);
866 bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX);
867 return 1;
868 }
869
870 printf("\nLoading from %s, offset 0x%lx\n", mtd->name, offset);
871
872 cnt = mtd->writesize;
873 r = nand_read_skip_bad(mtd, offset, &cnt, NULL, mtd->size,
874 (u_char *)addr);
875 if (r) {
876 puts("** Read error\n");
877 bootstage_error(BOOTSTAGE_ID_NAND_HDR_READ);
878 return 1;
879 }
880 bootstage_mark(BOOTSTAGE_ID_NAND_HDR_READ);
881
882 switch (genimg_get_format ((void *)addr)) {
883#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
884 case IMAGE_FORMAT_LEGACY:
885 hdr = (image_header_t *)addr;
886
887 bootstage_mark(BOOTSTAGE_ID_NAND_TYPE);
888 image_print_contents (hdr);
889
890 cnt = image_get_image_size (hdr);
891 break;
892#endif
893#if defined(CONFIG_FIT)
894 case IMAGE_FORMAT_FIT:
895 fit_hdr = (const void *)addr;
896 puts ("Fit image detected...\n");
897
898 cnt = fit_get_size (fit_hdr);
899 break;
900#endif
901 default:
902 bootstage_error(BOOTSTAGE_ID_NAND_TYPE);
903 puts ("** Unknown image type\n");
904 return 1;
905 }
906 bootstage_mark(BOOTSTAGE_ID_NAND_TYPE);
907
908 r = nand_read_skip_bad(mtd, offset, &cnt, NULL, mtd->size,
909 (u_char *)addr);
910 if (r) {
911 puts("** Read error\n");
912 bootstage_error(BOOTSTAGE_ID_NAND_READ);
913 return 1;
914 }
915 bootstage_mark(BOOTSTAGE_ID_NAND_READ);
916
917#if defined(CONFIG_FIT)
918
919 if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
920 if (fit_check_format(fit_hdr, IMAGE_SIZE_INVAL)) {
921 bootstage_error(BOOTSTAGE_ID_NAND_FIT_READ);
922 puts ("** Bad FIT image format\n");
923 return 1;
924 }
925 bootstage_mark(BOOTSTAGE_ID_NAND_FIT_READ_OK);
926 fit_print_contents (fit_hdr);
927 }
928#endif
929
930
931
932 image_load_addr = addr;
933
934 return bootm_maybe_autostart(cmdtp, cmd);
935}
936
937static int do_nandboot(struct cmd_tbl *cmdtp, int flag, int argc,
938 char *const argv[])
939{
940 char *boot_device = NULL;
941 int idx;
942 ulong addr, offset = 0;
943 struct mtd_info *mtd;
944#if defined(CONFIG_CMD_MTDPARTS)
945 struct mtd_device *dev;
946 struct part_info *part;
947 u8 pnum;
948
949 if (argc >= 2) {
950 char *p = (argc == 2) ? argv[1] : argv[2];
951 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
952 (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
953 if (dev->id->type != MTD_DEV_TYPE_NAND) {
954 puts("Not a NAND device\n");
955 return 1;
956 }
957 if (argc > 3)
958 goto usage;
959 if (argc == 3)
960 addr = hextoul(argv[1], NULL);
961 else
962 addr = CONFIG_SYS_LOAD_ADDR;
963
964 mtd = get_nand_dev_by_index(dev->id->num);
965 return nand_load_image(cmdtp, mtd, part->offset,
966 addr, argv[0]);
967 }
968 }
969#endif
970
971 bootstage_mark(BOOTSTAGE_ID_NAND_PART);
972 switch (argc) {
973 case 1:
974 addr = CONFIG_SYS_LOAD_ADDR;
975 boot_device = env_get("bootdevice");
976 break;
977 case 2:
978 addr = hextoul(argv[1], NULL);
979 boot_device = env_get("bootdevice");
980 break;
981 case 3:
982 addr = hextoul(argv[1], NULL);
983 boot_device = argv[2];
984 break;
985 case 4:
986 addr = hextoul(argv[1], NULL);
987 boot_device = argv[2];
988 offset = hextoul(argv[3], NULL);
989 break;
990 default:
991#if defined(CONFIG_CMD_MTDPARTS)
992usage:
993#endif
994 bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX);
995 return CMD_RET_USAGE;
996 }
997 bootstage_mark(BOOTSTAGE_ID_NAND_SUFFIX);
998
999 if (!boot_device) {
1000 puts("\n** No boot device **\n");
1001 bootstage_error(BOOTSTAGE_ID_NAND_BOOT_DEVICE);
1002 return 1;
1003 }
1004 bootstage_mark(BOOTSTAGE_ID_NAND_BOOT_DEVICE);
1005
1006 idx = hextoul(boot_device, NULL);
1007
1008 mtd = get_nand_dev_by_index(idx);
1009 if (!mtd) {
1010 printf("\n** Device %d not available\n", idx);
1011 bootstage_error(BOOTSTAGE_ID_NAND_AVAILABLE);
1012 return 1;
1013 }
1014 bootstage_mark(BOOTSTAGE_ID_NAND_AVAILABLE);
1015
1016 return nand_load_image(cmdtp, mtd, offset, addr, argv[0]);
1017}
1018
1019U_BOOT_CMD(nboot, 4, 1, do_nandboot,
1020 "boot from NAND device",
1021 "[partition] | [[[loadAddr] dev] offset]"
1022);
1023
