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26#include <common.h>
27#include <bootstage.h>
28#include <image.h>
29#include <asm/cache.h>
30#include <linux/mtd/mtd.h>
31#include <linux/mtd/rawnand.h>
32#include <command.h>
33#include <console.h>
34#include <env.h>
35#include <watchdog.h>
36#include <malloc.h>
37#include <asm/byteorder.h>
38#include <jffs2/jffs2.h>
39#include <nand.h>
40
41#include "legacy-mtd-utils.h"
42
43#if defined(CONFIG_CMD_MTDPARTS)
44
45
46int mtdparts_init(void);
47int find_dev_and_part(const char *id, struct mtd_device **dev,
48 u8 *part_num, struct part_info **part);
49#endif
50
51#define MAX_NUM_PAGES 64
52
53static int nand_biterror(struct mtd_info *mtd, ulong off, int bit)
54{
55 int ret = 0;
56 int page = 0;
57 ulong block_off;
58 u_char *datbuf[MAX_NUM_PAGES];
59 u_char data;
60 int pages_per_blk = mtd->erasesize / mtd->writesize;
61 struct erase_info einfo;
62
63 if (pages_per_blk > MAX_NUM_PAGES) {
64 printf("Too many pages in one erase block\n");
65 return 1;
66 }
67
68 if (bit < 0 || bit > 7) {
69 printf("bit position 0 to 7 is allowed\n");
70 return 1;
71 }
72
73
74 memset(datbuf, 0, sizeof(datbuf));
75 for (page = 0; page < pages_per_blk ; page++) {
76 datbuf[page] = malloc(mtd->writesize + mtd->oobsize);
77 if (!datbuf[page]) {
78 printf("No memory for page buffer\n");
79 ret = -ENOMEM;
80 goto free_memory;
81 }
82 }
83
84
85 block_off = off & (~(mtd->erasesize - 1));
86
87
88 for (page = 0; page < pages_per_blk ; page++) {
89 struct mtd_oob_ops ops;
90 loff_t addr = (loff_t)block_off;
91
92 memset(&ops, 0, sizeof(ops));
93 ops.datbuf = datbuf[page];
94 ops.oobbuf = datbuf[page] + mtd->writesize;
95 ops.len = mtd->writesize;
96 ops.ooblen = mtd->oobsize;
97 ops.mode = MTD_OPS_RAW;
98 ret = mtd_read_oob(mtd, addr, &ops);
99 if (ret < 0) {
100 printf("Error (%d) reading page %08lx\n",
101 ret, block_off);
102 ret = 1;
103 goto free_memory;
104 }
105 block_off += mtd->writesize;
106 }
107
108
109 memset(&einfo, 0, sizeof(einfo));
110 einfo.mtd = mtd;
111
112 einfo.addr = (loff_t)(off & (~(mtd->erasesize - 1)));
113 einfo.len = mtd->erasesize;
114 ret = mtd_erase(mtd, &einfo);
115 if (ret < 0) {
116 printf("Error (%d) nand_erase_nand page %08llx\n",
117 ret, einfo.addr);
118 ret = 1;
119 goto free_memory;
120 }
121
122
123 block_off = off & (mtd->erasesize - 1);
124 data = datbuf[block_off / mtd->writesize][block_off % mtd->writesize];
125 data ^= (1 << bit);
126 datbuf[block_off / mtd->writesize][block_off % mtd->writesize] = data;
127
128 printf("Flip data at 0x%lx with xor 0x%02x (bit=%d) to value=0x%02x\n",
129 off, (1 << bit), bit, data);
130
131
132
133 block_off = off & (~(mtd->erasesize - 1));
134 for (page = 0; page < pages_per_blk; page++) {
135 struct mtd_oob_ops ops;
136 loff_t addr = (loff_t)block_off;
137
138 memset(&ops, 0, sizeof(ops));
139 ops.datbuf = datbuf[page];
140 ops.oobbuf = datbuf[page] + mtd->writesize;
141 ops.len = mtd->writesize;
142 ops.ooblen = mtd->oobsize;
143 ops.mode = MTD_OPS_RAW;
144 ret = mtd_write_oob(mtd, addr, &ops);
145 if (ret < 0) {
146 printf("Error (%d) write page %08lx\n", ret, block_off);
147 ret = 1;
148 goto free_memory;
149 }
150 block_off += mtd->writesize;
151 }
152
153free_memory:
154 for (page = 0; page < pages_per_blk ; page++) {
155 if (datbuf[page])
156 free(datbuf[page]);
157 }
158 return ret;
159}
160
161static int nand_dump(struct mtd_info *mtd, ulong off, int only_oob,
162 int repeat)
163{
164 int i;
165 u_char *datbuf, *oobbuf, *p;
166 static loff_t last;
167 int ret = 0;
168
169 if (repeat)
170 off = last + mtd->writesize;
171
172 last = off;
173
174 datbuf = memalign(ARCH_DMA_MINALIGN, mtd->writesize);
175 if (!datbuf) {
176 puts("No memory for page buffer\n");
177 return 1;
178 }
179
180 oobbuf = memalign(ARCH_DMA_MINALIGN, mtd->oobsize);
181 if (!oobbuf) {
182 puts("No memory for page buffer\n");
183 ret = 1;
184 goto free_dat;
185 }
186 off &= ~(mtd->writesize - 1);
187 loff_t addr = (loff_t) off;
188 struct mtd_oob_ops ops;
189 memset(&ops, 0, sizeof(ops));
190 ops.datbuf = datbuf;
191 ops.oobbuf = oobbuf;
192 ops.len = mtd->writesize;
193 ops.ooblen = mtd->oobsize;
194 ops.mode = MTD_OPS_RAW;
195 i = mtd_read_oob(mtd, addr, &ops);
196 if (i < 0) {
197 printf("Error (%d) reading page %08lx\n", i, off);
198 ret = 1;
199 goto free_all;
200 }
201 printf("Page %08lx dump:\n", off);
202
203 if (!only_oob) {
204 i = mtd->writesize >> 4;
205 p = datbuf;
206
207 while (i--) {
208 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
209 " %02x %02x %02x %02x %02x %02x %02x %02x\n",
210 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
211 p[8], p[9], p[10], p[11], p[12], p[13], p[14],
212 p[15]);
213 p += 16;
214 }
215 }
216
217 puts("OOB:\n");
218 i = mtd->oobsize >> 3;
219 p = oobbuf;
220 while (i--) {
221 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
222 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
223 p += 8;
224 }
225
226free_all:
227 free(oobbuf);
228free_dat:
229 free(datbuf);
230
231 return ret;
232}
233
234
235
236static int set_dev(int dev)
237{
238 struct mtd_info *mtd = get_nand_dev_by_index(dev);
239
240 if (!mtd)
241 return -ENODEV;
242
243 if (nand_curr_device == dev)
244 return 0;
245
246 printf("Device %d: %s", dev, mtd->name);
247 puts("... is now current device\n");
248 nand_curr_device = dev;
249
250#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
251 board_nand_select_device(mtd_to_nand(mtd), dev);
252#endif
253
254 return 0;
255}
256
257#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
258static void print_status(ulong start, ulong end, ulong erasesize, int status)
259{
260
261
262
263
264
265
266 printf("%08lx - %08lx: %08lx blocks %s%s%s\n",
267 start,
268 end - 1,
269 (end - start) / erasesize,
270 ((status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
271 (!(status & NAND_LOCK_STATUS_UNLOCK) ? "LOCK " : ""),
272 ((status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
273}
274
275static void do_nand_status(struct mtd_info *mtd)
276{
277 ulong block_start = 0;
278 ulong off;
279 int last_status = -1;
280
281 struct nand_chip *nand_chip = mtd_to_nand(mtd);
282
283 nand_chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
284 printf("device is %swrite protected\n",
285 (nand_chip->read_byte(mtd) & 0x80 ?
286 "NOT " : ""));
287
288 for (off = 0; off < mtd->size; off += mtd->erasesize) {
289 int s = nand_get_lock_status(mtd, off);
290
291
292 if (s != last_status && off != 0) {
293 print_status(block_start, off, mtd->erasesize,
294 last_status);
295 block_start = off;
296 }
297 last_status = s;
298 }
299
300 print_status(block_start, off, mtd->erasesize, last_status);
301}
302#endif
303
304#ifdef CONFIG_ENV_OFFSET_OOB
305unsigned long nand_env_oob_offset;
306
307int do_nand_env_oob(struct cmd_tbl *cmdtp, int argc, char *const argv[])
308{
309 int ret;
310 uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)];
311 struct mtd_info *mtd = get_nand_dev_by_index(0);
312 char *cmd = argv[1];
313
314 if (CONFIG_SYS_MAX_NAND_DEVICE == 0 || !mtd) {
315 puts("no devices available\n");
316 return 1;
317 }
318
319 set_dev(0);
320
321 if (!strcmp(cmd, "get")) {
322 ret = get_nand_env_oob(mtd, &nand_env_oob_offset);
323 if (ret)
324 return 1;
325
326 printf("0x%08lx\n", nand_env_oob_offset);
327 } else if (!strcmp(cmd, "set")) {
328 loff_t addr;
329 loff_t maxsize;
330 struct mtd_oob_ops ops;
331 int idx = 0;
332
333 if (argc < 3)
334 goto usage;
335
336 mtd = get_nand_dev_by_index(idx);
337
338 if (mtd_arg_off(argv[2], &idx, &addr, &maxsize, &maxsize,
339 MTD_DEV_TYPE_NAND, mtd->size)) {
340 puts("Offset or partition name expected\n");
341 return 1;
342 }
343 if (set_dev(idx)) {
344 puts("Offset or partition name expected\n");
345 return 1;
346 }
347
348 if (idx != 0) {
349 puts("Partition not on first NAND device\n");
350 return 1;
351 }
352
353 if (mtd->oobavail < ENV_OFFSET_SIZE) {
354 printf("Insufficient available OOB bytes:\n"
355 "%d OOB bytes available but %d required for "
356 "env.oob support\n",
357 mtd->oobavail, ENV_OFFSET_SIZE);
358 return 1;
359 }
360
361 if ((addr & (mtd->erasesize - 1)) != 0) {
362 printf("Environment offset must be block-aligned\n");
363 return 1;
364 }
365
366 ops.datbuf = NULL;
367 ops.mode = MTD_OOB_AUTO;
368 ops.ooboffs = 0;
369 ops.ooblen = ENV_OFFSET_SIZE;
370 ops.oobbuf = (void *) oob_buf;
371
372 oob_buf[0] = ENV_OOB_MARKER;
373 oob_buf[1] = addr / mtd->erasesize;
374
375 ret = mtd->write_oob(mtd, ENV_OFFSET_SIZE, &ops);
376 if (ret) {
377 printf("Error writing OOB block 0\n");
378 return ret;
379 }
380
381 ret = get_nand_env_oob(mtd, &nand_env_oob_offset);
382 if (ret) {
383 printf("Error reading env offset in OOB\n");
384 return ret;
385 }
386
387 if (addr != nand_env_oob_offset) {
388 printf("Verification of env offset in OOB failed: "
389 "0x%08llx expected but got 0x%08lx\n",
390 (unsigned long long)addr, nand_env_oob_offset);
391 return 1;
392 }
393 } else {
394 goto usage;
395 }
396
397 return ret;
398
399usage:
400 return CMD_RET_USAGE;
401}
402
403#endif
404
405static void nand_print_and_set_info(int idx)
406{
407 struct mtd_info *mtd;
408 struct nand_chip *chip;
409
410 mtd = get_nand_dev_by_index(idx);
411 if (!mtd)
412 return;
413
414 chip = mtd_to_nand(mtd);
415 printf("Device %d: ", idx);
416 if (chip->numchips > 1)
417 printf("%dx ", chip->numchips);
418 printf("%s, sector size %u KiB\n",
419 mtd->name, mtd->erasesize >> 10);
420 printf(" Page size %8d b\n", mtd->writesize);
421 printf(" OOB size %8d b\n", mtd->oobsize);
422 printf(" Erase size %8d b\n", mtd->erasesize);
423 printf(" subpagesize %8d b\n", chip->subpagesize);
424 printf(" options 0x%08x\n", chip->options);
425 printf(" bbt options 0x%08x\n", chip->bbt_options);
426
427
428 env_set_hex("nand_writesize", mtd->writesize);
429 env_set_hex("nand_oobsize", mtd->oobsize);
430 env_set_hex("nand_erasesize", mtd->erasesize);
431}
432
433static int raw_access(struct mtd_info *mtd, ulong addr, loff_t off,
434 ulong count, int read, int no_verify)
435{
436 int ret = 0;
437
438 while (count--) {
439
440 mtd_oob_ops_t ops = {
441 .datbuf = (u8 *)addr,
442 .oobbuf = ((u8 *)addr) + mtd->writesize,
443 .len = mtd->writesize,
444 .ooblen = mtd->oobsize,
445 .mode = MTD_OPS_RAW
446 };
447
448 if (read) {
449 ret = mtd_read_oob(mtd, off, &ops);
450 } else {
451 ret = mtd_write_oob(mtd, off, &ops);
452 if (!ret && !no_verify)
453 ret = nand_verify_page_oob(mtd, &ops, off);
454 }
455
456 if (ret) {
457 printf("%s: error at offset %llx, ret %d\n",
458 __func__, (long long)off, ret);
459 break;
460 }
461
462 addr += mtd->writesize + mtd->oobsize;
463 off += mtd->writesize;
464 }
465
466 return ret;
467}
468
469
470
471
472static void adjust_size_for_badblocks(loff_t *size, loff_t offset, int dev)
473{
474
475
476
477 struct mtd_info *mtd = get_nand_dev_by_index(dev);
478 loff_t maxoffset = offset + *size;
479 int badblocks = 0;
480
481
482 for (; offset < maxoffset; offset += mtd->erasesize) {
483 if (nand_block_isbad(mtd, offset))
484 badblocks++;
485 }
486
487 if (badblocks) {
488 *size -= badblocks * mtd->erasesize;
489 printf("size adjusted to 0x%llx (%d bad blocks)\n",
490 (unsigned long long)*size, badblocks);
491 }
492}
493
494static int do_nand(struct cmd_tbl *cmdtp, int flag, int argc,
495 char *const argv[])
496{
497 int i, ret = 0;
498 ulong addr;
499 loff_t off, size, maxsize;
500 char *cmd, *s;
501 struct mtd_info *mtd;
502#ifdef CONFIG_SYS_NAND_QUIET
503 int quiet = CONFIG_SYS_NAND_QUIET;
504#else
505 int quiet = 0;
506#endif
507 const char *quiet_str = env_get("quiet");
508 int dev = nand_curr_device;
509 int repeat = flag & CMD_FLAG_REPEAT;
510
511
512 if (argc < 2)
513 goto usage;
514
515 if (quiet_str)
516 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
517
518 cmd = argv[1];
519
520
521 if (repeat && strcmp(cmd, "dump"))
522 return 0;
523
524 if (strcmp(cmd, "info") == 0) {
525
526 putc('\n');
527 for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
528 nand_print_and_set_info(i);
529 return 0;
530 }
531
532 if (strcmp(cmd, "device") == 0) {
533 if (argc < 3) {
534 putc('\n');
535 if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE)
536 puts("no devices available\n");
537 else
538 nand_print_and_set_info(dev);
539 return 0;
540 }
541
542 dev = (int)dectoul(argv[2], NULL);
543 set_dev(dev);
544
545 return 0;
546 }
547
548#ifdef CONFIG_ENV_OFFSET_OOB
549
550 if (strcmp(cmd, "env.oob") == 0)
551 return do_nand_env_oob(cmdtp, argc - 1, argv + 1);
552#endif
553
554
555
556
557
558
559
560 mtd = get_nand_dev_by_index(dev);
561 if (!mtd) {
562 puts("\nno devices available\n");
563 return 1;
564 }
565
566 if (strcmp(cmd, "bad") == 0) {
567 printf("\nDevice %d bad blocks:\n", dev);
568 for (off = 0; off < mtd->size; off += mtd->erasesize)
569 if (nand_block_isbad(mtd, off))
570 printf(" %08llx\n", (unsigned long long)off);
571 return 0;
572 }
573
574
575
576
577
578
579 if (strncmp(cmd, "erase", 5) == 0 || strncmp(cmd, "scrub", 5) == 0) {
580 nand_erase_options_t opts;
581
582 int clean = argc > 2 && !strcmp("clean", argv[2]);
583 int scrub_yes = argc > 2 && !strcmp("-y", argv[2]);
584 int o = (clean || scrub_yes) ? 3 : 2;
585 int scrub = !strncmp(cmd, "scrub", 5);
586 int spread = 0;
587 int args = 2;
588 const char *scrub_warn =
589 "Warning: "
590 "scrub option will erase all factory set bad blocks!\n"
591 " "
592 "There is no reliable way to recover them.\n"
593 " "
594 "Use this command only for testing purposes if you\n"
595 " "
596 "are sure of what you are doing!\n"
597 "\nReally scrub this NAND flash? <y/N>\n";
598
599 if (cmd[5] != 0) {
600 if (!strcmp(&cmd[5], ".spread")) {
601 spread = 1;
602 } else if (!strcmp(&cmd[5], ".part")) {
603 args = 1;
604 } else if (!strcmp(&cmd[5], ".chip")) {
605 args = 0;
606 } else {
607 goto usage;
608 }
609 }
610
611
612
613
614
615
616 if (argc != o + args)
617 goto usage;
618
619 printf("\nNAND %s: ", cmd);
620
621 if (mtd_arg_off_size(argc - o, argv + o, &dev, &off, &size,
622 &maxsize, MTD_DEV_TYPE_NAND,
623 mtd->size) != 0)
624 return 1;
625
626 if (set_dev(dev))
627 return 1;
628
629 mtd = get_nand_dev_by_index(dev);
630
631 memset(&opts, 0, sizeof(opts));
632 opts.offset = off;
633 opts.length = size;
634 opts.jffs2 = clean;
635 opts.quiet = quiet;
636 opts.spread = spread;
637
638 if (scrub) {
639 if (scrub_yes) {
640 opts.scrub = 1;
641 } else {
642 puts(scrub_warn);
643 if (confirm_yesno()) {
644 opts.scrub = 1;
645 } else {
646 puts("scrub aborted\n");
647 return 1;
648 }
649 }
650 }
651 ret = nand_erase_opts(mtd, &opts);
652 printf("%s\n", ret ? "ERROR" : "OK");
653
654 return ret == 0 ? 0 : 1;
655 }
656
657 if (strncmp(cmd, "dump", 4) == 0) {
658 if (argc < 3)
659 goto usage;
660
661 off = (int)hextoul(argv[2], NULL);
662 ret = nand_dump(mtd, off, !strcmp(&cmd[4], ".oob"), repeat);
663
664 return ret == 0 ? 1 : 0;
665 }
666
667 if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
668 size_t rwsize;
669 ulong pagecount = 1;
670 int read;
671 int raw = 0;
672 int no_verify = 0;
673
674 if (argc < 4)
675 goto usage;
676
677 addr = (ulong)hextoul(argv[2], NULL);
678
679 read = strncmp(cmd, "read", 4) == 0;
680 printf("\nNAND %s: ", read ? "read" : "write");
681
682 s = strchr(cmd, '.');
683
684 if (s && !strncmp(s, ".raw", 4)) {
685 raw = 1;
686
687 if (!strcmp(s, ".raw.noverify"))
688 no_verify = 1;
689
690 if (mtd_arg_off(argv[3], &dev, &off, &size, &maxsize,
691 MTD_DEV_TYPE_NAND,
692 mtd->size))
693 return 1;
694
695 if (set_dev(dev))
696 return 1;
697
698 mtd = get_nand_dev_by_index(dev);
699
700 if (argc > 4 && !str2long(argv[4], &pagecount)) {
701 printf("'%s' is not a number\n", argv[4]);
702 return 1;
703 }
704
705 if (pagecount * mtd->writesize > size) {
706 puts("Size exceeds partition or device limit\n");
707 return -1;
708 }
709
710 rwsize = pagecount * (mtd->writesize + mtd->oobsize);
711 } else {
712 if (mtd_arg_off_size(argc - 3, argv + 3, &dev, &off,
713 &size, &maxsize,
714 MTD_DEV_TYPE_NAND,
715 mtd->size) != 0)
716 return 1;
717
718 if (set_dev(dev))
719 return 1;
720
721
722 if (argc < 5)
723 adjust_size_for_badblocks(&size, off, dev);
724 rwsize = size;
725 }
726
727 mtd = get_nand_dev_by_index(dev);
728
729 if (!s || !strcmp(s, ".jffs2") ||
730 !strcmp(s, ".e") || !strcmp(s, ".i")) {
731 if (read)
732 ret = nand_read_skip_bad(mtd, off, &rwsize,
733 NULL, maxsize,
734 (u_char *)addr);
735 else
736 ret = nand_write_skip_bad(mtd, off, &rwsize,
737 NULL, maxsize,
738 (u_char *)addr,
739 WITH_WR_VERIFY);
740#ifdef CONFIG_CMD_NAND_TRIMFFS
741 } else if (!strcmp(s, ".trimffs")) {
742 if (read) {
743 printf("Unknown nand command suffix '%s'\n", s);
744 return 1;
745 }
746 ret = nand_write_skip_bad(mtd, off, &rwsize, NULL,
747 maxsize, (u_char *)addr,
748 WITH_DROP_FFS | WITH_WR_VERIFY);
749#endif
750 } else if (!strcmp(s, ".oob")) {
751
752 mtd_oob_ops_t ops = {
753 .oobbuf = (u8 *)addr,
754 .ooblen = rwsize,
755 .mode = MTD_OPS_RAW
756 };
757
758 if (read)
759 ret = mtd_read_oob(mtd, off, &ops);
760 else
761 ret = mtd_write_oob(mtd, off, &ops);
762 } else if (raw) {
763 ret = raw_access(mtd, addr, off, pagecount, read,
764 no_verify);
765 } else {
766 printf("Unknown nand command suffix '%s'.\n", s);
767 return 1;
768 }
769
770 printf(" %zu bytes %s: %s\n", rwsize,
771 read ? "read" : "written", ret ? "ERROR" : "OK");
772
773 return ret == 0 ? 0 : 1;
774 }
775
776#ifdef CONFIG_CMD_NAND_TORTURE
777 if (strcmp(cmd, "torture") == 0) {
778 loff_t endoff;
779 unsigned int failed = 0, passed = 0;
780
781 if (argc < 3)
782 goto usage;
783
784 if (!str2off(argv[2], &off)) {
785 puts("Offset is not a valid number\n");
786 return 1;
787 }
788
789 size = mtd->erasesize;
790 if (argc > 3) {
791 if (!str2off(argv[3], &size)) {
792 puts("Size is not a valid number\n");
793 return 1;
794 }
795 }
796
797 endoff = off + size;
798 if (endoff > mtd->size) {
799 puts("Arguments beyond end of NAND\n");
800 return 1;
801 }
802
803 off = round_down(off, mtd->erasesize);
804 endoff = round_up(endoff, mtd->erasesize);
805 size = endoff - off;
806 printf("\nNAND torture: device %d offset 0x%llx size 0x%llx (block size 0x%x)\n",
807 dev, off, size, mtd->erasesize);
808 while (off < endoff) {
809 ret = nand_torture(mtd, off);
810 if (ret) {
811 failed++;
812 printf(" block at 0x%llx failed\n", off);
813 } else {
814 passed++;
815 }
816 off += mtd->erasesize;
817 }
818 printf(" Passed: %u, failed: %u\n", passed, failed);
819 return failed != 0;
820 }
821#endif
822
823 if (strcmp(cmd, "markbad") == 0) {
824 argc -= 2;
825 argv += 2;
826
827 if (argc <= 0)
828 goto usage;
829
830 while (argc > 0) {
831 addr = hextoul(*argv, NULL);
832
833 if (mtd_block_markbad(mtd, addr)) {
834 printf("block 0x%08lx NOT marked "
835 "as bad! ERROR %d\n",
836 addr, ret);
837 ret = 1;
838 } else {
839 printf("block 0x%08lx successfully "
840 "marked as bad\n",
841 addr);
842 }
843 --argc;
844 ++argv;
845 }
846 return ret;
847 }
848
849 if (strcmp(cmd, "biterr") == 0) {
850 int bit;
851
852 if (argc != 4)
853 goto usage;
854
855 off = (int)simple_strtoul(argv[2], NULL, 16);
856 bit = (int)simple_strtoul(argv[3], NULL, 10);
857 ret = nand_biterror(mtd, off, bit);
858 return ret;
859 }
860
861#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
862 if (strcmp(cmd, "lock") == 0) {
863 int tight = 0;
864 int status = 0;
865 if (argc == 3) {
866 if (!strcmp("tight", argv[2]))
867 tight = 1;
868 if (!strcmp("status", argv[2]))
869 status = 1;
870 }
871 if (status) {
872 do_nand_status(mtd);
873 } else {
874 if (!nand_lock(mtd, tight)) {
875 puts("NAND flash successfully locked\n");
876 } else {
877 puts("Error locking NAND flash\n");
878 return 1;
879 }
880 }
881 return 0;
882 }
883
884 if (strncmp(cmd, "unlock", 5) == 0) {
885 int allexcept = 0;
886
887 s = strchr(cmd, '.');
888
889 if (s && !strcmp(s, ".allexcept"))
890 allexcept = 1;
891
892 if (mtd_arg_off_size(argc - 2, argv + 2, &dev, &off, &size,
893 &maxsize, MTD_DEV_TYPE_NAND,
894 mtd->size) < 0)
895 return 1;
896
897 if (set_dev(dev))
898 return 1;
899
900 mtd = get_nand_dev_by_index(dev);
901
902 if (!nand_unlock(mtd, off, size, allexcept)) {
903 puts("NAND flash successfully unlocked\n");
904 } else {
905 puts("Error unlocking NAND flash, "
906 "write and erase will probably fail\n");
907 return 1;
908 }
909 return 0;
910 }
911#endif
912
913usage:
914 return CMD_RET_USAGE;
915}
916
917#ifdef CONFIG_SYS_LONGHELP
918static char nand_help_text[] =
919 "info - show available NAND devices\n"
920 "nand device [dev] - show or set current device\n"
921 "nand read - addr off|partition size\n"
922 "nand write - addr off|partition size\n"
923 " read/write 'size' bytes starting at offset 'off'\n"
924 " to/from memory address 'addr', skipping bad blocks.\n"
925 "nand read.raw - addr off|partition [count]\n"
926 "nand write.raw[.noverify] - addr off|partition [count]\n"
927 " Use read.raw/write.raw to avoid ECC and access the flash as-is.\n"
928#ifdef CONFIG_CMD_NAND_TRIMFFS
929 "nand write.trimffs - addr off|partition size\n"
930 " write 'size' bytes starting at offset 'off' from memory address\n"
931 " 'addr', skipping bad blocks and dropping any pages at the end\n"
932 " of eraseblocks that contain only 0xFF\n"
933#endif
934 "nand erase[.spread] [clean] off size - erase 'size' bytes "
935 "from offset 'off'\n"
936 " With '.spread', erase enough for given file size, otherwise,\n"
937 " 'size' includes skipped bad blocks.\n"
938 "nand erase.part [clean] partition - erase entire mtd partition'\n"
939 "nand erase.chip [clean] - erase entire chip'\n"
940 "nand bad - show bad blocks\n"
941 "nand dump[.oob] off - dump page\n"
942#ifdef CONFIG_CMD_NAND_TORTURE
943 "nand torture off - torture one block at offset\n"
944 "nand torture off [size] - torture blocks from off to off+size\n"
945#endif
946 "nand scrub [-y] off size | scrub.part partition | scrub.chip\n"
947 " really clean NAND erasing bad blocks (UNSAFE)\n"
948 "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n"
949 "nand biterr off bit - make a bit error at offset and bit position (UNSAFE)"
950#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
951 "\n"
952 "nand lock [tight] [status]\n"
953 " bring nand to lock state or display locked pages\n"
954 "nand unlock[.allexcept] [offset] [size] - unlock section"
955#endif
956#ifdef CONFIG_ENV_OFFSET_OOB
957 "\n"
958 "nand env.oob - environment offset in OOB of block 0 of"
959 " first device.\n"
960 "nand env.oob set off|partition - set enviromnent offset\n"
961 "nand env.oob get - get environment offset"
962#endif
963 "";
964#endif
965
966U_BOOT_CMD(
967 nand, CONFIG_SYS_MAXARGS, 1, do_nand,
968 "NAND sub-system", nand_help_text
969);
970
971static int nand_load_image(struct cmd_tbl *cmdtp, struct mtd_info *mtd,
972 ulong offset, ulong addr, char *cmd)
973{
974 int r;
975 char *s;
976 size_t cnt;
977#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
978 image_header_t *hdr;
979#endif
980#if defined(CONFIG_FIT)
981 const void *fit_hdr = NULL;
982#endif
983
984 s = strchr(cmd, '.');
985 if (s != NULL &&
986 (strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) {
987 printf("Unknown nand load suffix '%s'\n", s);
988 bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX);
989 return 1;
990 }
991
992 printf("\nLoading from %s, offset 0x%lx\n", mtd->name, offset);
993
994 cnt = mtd->writesize;
995 r = nand_read_skip_bad(mtd, offset, &cnt, NULL, mtd->size,
996 (u_char *)addr);
997 if (r) {
998 puts("** Read error\n");
999 bootstage_error(BOOTSTAGE_ID_NAND_HDR_READ);
1000 return 1;
1001 }
1002 bootstage_mark(BOOTSTAGE_ID_NAND_HDR_READ);
1003
1004 switch (genimg_get_format ((void *)addr)) {
1005#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
1006 case IMAGE_FORMAT_LEGACY:
1007 hdr = (image_header_t *)addr;
1008
1009 bootstage_mark(BOOTSTAGE_ID_NAND_TYPE);
1010 image_print_contents (hdr);
1011
1012 cnt = image_get_image_size (hdr);
1013 break;
1014#endif
1015#if defined(CONFIG_FIT)
1016 case IMAGE_FORMAT_FIT:
1017 fit_hdr = (const void *)addr;
1018 puts ("Fit image detected...\n");
1019
1020 cnt = fit_get_size (fit_hdr);
1021 break;
1022#endif
1023 default:
1024 bootstage_error(BOOTSTAGE_ID_NAND_TYPE);
1025 puts ("** Unknown image type\n");
1026 return 1;
1027 }
1028 bootstage_mark(BOOTSTAGE_ID_NAND_TYPE);
1029
1030 r = nand_read_skip_bad(mtd, offset, &cnt, NULL, mtd->size,
1031 (u_char *)addr);
1032 if (r) {
1033 puts("** Read error\n");
1034 bootstage_error(BOOTSTAGE_ID_NAND_READ);
1035 return 1;
1036 }
1037 bootstage_mark(BOOTSTAGE_ID_NAND_READ);
1038
1039#if defined(CONFIG_FIT)
1040
1041 if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
1042 if (fit_check_format(fit_hdr, IMAGE_SIZE_INVAL)) {
1043 bootstage_error(BOOTSTAGE_ID_NAND_FIT_READ);
1044 puts ("** Bad FIT image format\n");
1045 return 1;
1046 }
1047 bootstage_mark(BOOTSTAGE_ID_NAND_FIT_READ_OK);
1048 fit_print_contents (fit_hdr);
1049 }
1050#endif
1051
1052
1053
1054 image_load_addr = addr;
1055
1056 return bootm_maybe_autostart(cmdtp, cmd);
1057}
1058
1059static int do_nandboot(struct cmd_tbl *cmdtp, int flag, int argc,
1060 char *const argv[])
1061{
1062 char *boot_device = NULL;
1063 int idx;
1064 ulong addr, offset = 0;
1065 struct mtd_info *mtd;
1066#if defined(CONFIG_CMD_MTDPARTS)
1067 struct mtd_device *dev;
1068 struct part_info *part;
1069 u8 pnum;
1070
1071 if (argc >= 2) {
1072 char *p = (argc == 2) ? argv[1] : argv[2];
1073 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
1074 (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
1075 if (dev->id->type != MTD_DEV_TYPE_NAND) {
1076 puts("Not a NAND device\n");
1077 return 1;
1078 }
1079 if (argc > 3)
1080 goto usage;
1081 if (argc == 3)
1082 addr = hextoul(argv[1], NULL);
1083 else
1084 addr = CONFIG_SYS_LOAD_ADDR;
1085
1086 mtd = get_nand_dev_by_index(dev->id->num);
1087 return nand_load_image(cmdtp, mtd, part->offset,
1088 addr, argv[0]);
1089 }
1090 }
1091#endif
1092
1093 bootstage_mark(BOOTSTAGE_ID_NAND_PART);
1094 switch (argc) {
1095 case 1:
1096 addr = CONFIG_SYS_LOAD_ADDR;
1097 boot_device = env_get("bootdevice");
1098 break;
1099 case 2:
1100 addr = hextoul(argv[1], NULL);
1101 boot_device = env_get("bootdevice");
1102 break;
1103 case 3:
1104 addr = hextoul(argv[1], NULL);
1105 boot_device = argv[2];
1106 break;
1107 case 4:
1108 addr = hextoul(argv[1], NULL);
1109 boot_device = argv[2];
1110 offset = hextoul(argv[3], NULL);
1111 break;
1112 default:
1113#if defined(CONFIG_CMD_MTDPARTS)
1114usage:
1115#endif
1116 bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX);
1117 return CMD_RET_USAGE;
1118 }
1119 bootstage_mark(BOOTSTAGE_ID_NAND_SUFFIX);
1120
1121 if (!boot_device) {
1122 puts("\n** No boot device **\n");
1123 bootstage_error(BOOTSTAGE_ID_NAND_BOOT_DEVICE);
1124 return 1;
1125 }
1126 bootstage_mark(BOOTSTAGE_ID_NAND_BOOT_DEVICE);
1127
1128 idx = hextoul(boot_device, NULL);
1129
1130 mtd = get_nand_dev_by_index(idx);
1131 if (!mtd) {
1132 printf("\n** Device %d not available\n", idx);
1133 bootstage_error(BOOTSTAGE_ID_NAND_AVAILABLE);
1134 return 1;
1135 }
1136 bootstage_mark(BOOTSTAGE_ID_NAND_AVAILABLE);
1137
1138 return nand_load_image(cmdtp, mtd, offset, addr, argv[0]);
1139}
1140
1141U_BOOT_CMD(nboot, 4, 1, do_nandboot,
1142 "boot from NAND device",
1143 "[partition] | [[[loadAddr] dev] offset]"
1144);
1145