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>
7 * Added 16-bit nand support
8 * (C) 2004 Texas Instruments
14 #ifndef CFG_NAND_LEGACY
22 #if defined(CONFIG_CMD_NAND)
27 #include <asm/byteorder.h>
28 #include <jffs2/jffs2.h>
31 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
33 /* parition handling routines */
34 int mtdparts_init(void);
35 int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
36 int find_dev_and_part(const char *id, struct mtd_device **dev,
37 u8 *part_num, struct part_info **part);
40 extern nand_info_t nand_info[]; /* info for NAND chips */
42 static int nand_dump_oob(nand_info_t *nand, ulong off)
47 static int nand_dump(nand_info_t *nand, ulong off)
52 buf = malloc(nand->oobblock + nand->oobsize);
54 puts("No memory for page buffer\n");
57 off &= ~(nand->oobblock - 1);
58 i = nand_read_raw(nand, buf, off, nand->oobblock, nand->oobsize);
60 printf("Error (%d) reading page %08x\n", i, off);
64 printf("Page %08x dump:\n", off);
65 i = nand->oobblock >> 4; p = buf;
67 printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x"
68 " %02x %02x %02x %02x %02x %02x %02x %02x\n",
69 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
70 p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
74 i = nand->oobsize >> 3;
76 printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
77 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
85 /* ------------------------------------------------------------------------- */
87 static inline int str2long(char *p, ulong *num)
91 *num = simple_strtoul(p, &endptr, 16);
92 return (*p != '\0' && *endptr == '\0') ? 1 : 0;
96 arg_off_size(int argc, char *argv[], nand_info_t *nand, ulong *off, ulong *size)
98 int idx = nand_curr_device;
99 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
100 struct mtd_device *dev;
101 struct part_info *part;
104 if (argc >= 1 && !(str2long(argv[0], off))) {
105 if ((mtdparts_init() == 0) &&
106 (find_dev_and_part(argv[0], &dev, &pnum, &part) == 0)) {
107 if (dev->id->type != MTD_DEV_TYPE_NAND) {
108 puts("not a NAND device\n");
113 if (!(str2long(argv[1], size))) {
114 printf("'%s' is not a number\n", argv[1]);
117 if (*size > part->size)
123 *nand = nand_info[idx];
130 if (!(str2long(argv[0], off))) {
131 printf("'%s' is not a number\n", argv[0]);
139 if (!(str2long(argv[1], size))) {
140 printf("'%s' is not a number\n", argv[1]);
144 *size = nand->size - *off;
147 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
150 printf("device %d ", idx);
151 if (*size == nand->size)
152 puts("whole chip\n");
154 printf("offset 0x%x, size 0x%x\n", *off, *size);
158 int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
161 ulong addr, off, size;
165 const char *quiet_str = getenv("quiet");
167 /* at least two arguments please */
172 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
176 if (strcmp(cmd, "info") == 0) {
179 for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
180 if (nand_info[i].name)
181 printf("Device %d: %s, sector size %lu KiB\n",
182 i, nand_info[i].name,
183 nand_info[i].erasesize >> 10);
188 if (strcmp(cmd, "device") == 0) {
191 if ((nand_curr_device < 0) ||
192 (nand_curr_device >= CFG_MAX_NAND_DEVICE))
193 puts("\nno devices available\n");
195 printf("\nDevice %d: %s\n", nand_curr_device,
196 nand_info[nand_curr_device].name);
199 dev = (int)simple_strtoul(argv[2], NULL, 10);
200 if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) {
201 puts("No such device\n");
204 printf("Device %d: %s", dev, nand_info[dev].name);
205 puts("... is now current device\n");
206 nand_curr_device = dev;
208 #ifdef CFG_NAND_SELECT_DEVICE
210 * Select the chip in the board/cpu specific driver
212 board_nand_select_device(nand_info[dev].priv, dev);
218 if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 &&
219 strncmp(cmd, "dump", 4) != 0 &&
220 strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 &&
221 strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 &&
222 strcmp(cmd, "biterr") != 0 &&
223 strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 )
226 /* the following commands operate on the current device */
227 if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE ||
228 !nand_info[nand_curr_device].name) {
229 puts("\nno devices available\n");
232 nand = &nand_info[nand_curr_device];
234 if (strcmp(cmd, "bad") == 0) {
235 printf("\nDevice %d bad blocks:\n", nand_curr_device);
236 for (off = 0; off < nand->size; off += nand->erasesize)
237 if (nand_block_isbad(nand, off))
238 printf(" %08x\n", off);
245 * nand erase [clean] [off size]
247 if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) {
248 nand_erase_options_t opts;
249 /* "clean" at index 2 means request to write cleanmarker */
250 int clean = argc > 2 && !strcmp("clean", argv[2]);
251 int o = clean ? 3 : 2;
252 int scrub = !strcmp(cmd, "scrub");
254 printf("\nNAND %s: ", scrub ? "scrub" : "erase");
255 /* skip first two or three arguments, look for offset and size */
256 if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
259 memset(&opts, 0, sizeof(opts));
267 "scrub option will erase all factory set "
270 "There is no reliable way to recover them.\n"
272 "Use this command only for testing purposes "
275 "are sure of what you are doing!\n"
276 "\nReally scrub this NAND flash? <y/N>\n");
278 if (getc() == 'y' && getc() == '\r') {
281 puts("scrub aborted\n");
285 ret = nand_erase_opts(nand, &opts);
286 printf("%s\n", ret ? "ERROR" : "OK");
288 return ret == 0 ? 0 : 1;
291 if (strncmp(cmd, "dump", 4) == 0) {
295 s = strchr(cmd, '.');
296 off = (int)simple_strtoul(argv[2], NULL, 16);
298 if (s != NULL && strcmp(s, ".oob") == 0)
299 ret = nand_dump_oob(nand, off);
301 ret = nand_dump(nand, off);
303 return ret == 0 ? 1 : 0;
308 if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
314 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
316 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
317 printf("\nNAND %s: ", read ? "read" : "write");
318 if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
321 s = strchr(cmd, '.');
323 (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) {
326 nand_read_options_t opts;
327 memset(&opts, 0, sizeof(opts));
328 opts.buffer = (u_char*) addr;
332 ret = nand_read_opts(nand, &opts);
335 nand_write_options_t opts;
336 memset(&opts, 0, sizeof(opts));
337 opts.buffer = (u_char*) addr;
340 /* opts.forcejffs2 = 1; */
344 ret = nand_write_opts(nand, &opts);
348 ret = nand_read(nand, off, &size, (u_char *)addr);
350 ret = nand_write(nand, off, &size, (u_char *)addr);
353 printf(" %d bytes %s: %s\n", size,
354 read ? "read" : "written", ret ? "ERROR" : "OK");
356 return ret == 0 ? 0 : 1;
359 if (strcmp(cmd, "markbad") == 0) {
360 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
362 int ret = nand->block_markbad(nand, addr);
364 printf("block 0x%08lx successfully marked as bad\n",
368 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
373 if (strcmp(cmd, "biterr") == 0) {
378 if (strcmp(cmd, "lock") == 0) {
382 if (!strcmp("tight", argv[2]))
384 if (!strcmp("status", argv[2]))
389 ulong block_start = 0;
391 int last_status = -1;
393 struct nand_chip *nand_chip = nand->priv;
394 /* check the WP bit */
395 nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1);
396 printf("device is %swrite protected\n",
397 (nand_chip->read_byte(nand) & 0x80 ?
400 for (off = 0; off < nand->size; off += nand->oobblock) {
401 int s = nand_get_lock_status(nand, off);
403 /* print message only if status has changed
406 if (off == nand->size - nand->oobblock
407 || (s != last_status && off != 0)) {
409 printf("%08x - %08x: %8d pages %s%s%s\n",
412 (off-block_start)/nand->oobblock,
413 ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
414 ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
415 ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
421 if (!nand_lock(nand, tight)) {
422 puts("NAND flash successfully locked\n");
424 puts("Error locking NAND flash\n");
431 if (strcmp(cmd, "unlock") == 0) {
432 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
435 if (!nand_unlock(nand, off, size)) {
436 puts("NAND flash successfully unlocked\n");
438 puts("Error unlocking NAND flash, "
439 "write and erase will probably fail\n");
446 printf("Usage:\n%s\n", cmdtp->usage);
450 U_BOOT_CMD(nand, 5, 1, do_nand,
451 "nand - NAND sub-system\n",
452 "info - show available NAND devices\n"
453 "nand device [dev] - show or set current device\n"
454 "nand read[.jffs2] - addr off|partition size\n"
455 "nand write[.jffs2] - addr off|partiton size - read/write `size' bytes starting\n"
456 " at offset `off' to/from memory address `addr'\n"
457 "nand erase [clean] [off size] - erase `size' bytes from\n"
458 " offset `off' (entire device if not specified)\n"
459 "nand bad - show bad blocks\n"
460 "nand dump[.oob] off - dump page\n"
461 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
462 "nand markbad off - mark bad block at offset (UNSAFE)\n"
463 "nand biterr off - make a bit error at offset (UNSAFE)\n"
464 "nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
465 "nand unlock [offset] [size] - unlock section\n");
467 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
468 ulong offset, ulong addr, char *cmd)
476 s = strchr(cmd, '.');
478 (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
481 printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
483 cnt = nand->oobblock;
485 nand_read_options_t opts;
486 memset(&opts, 0, sizeof(opts));
487 opts.buffer = (u_char*) addr;
489 opts.offset = offset;
491 r = nand_read_opts(nand, &opts);
493 r = nand_read(nand, offset, &cnt, (u_char *) addr);
497 puts("** Read error\n");
498 show_boot_progress (-56);
501 show_boot_progress (56);
503 hdr = (image_header_t *) addr;
505 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
506 printf("\n** Bad Magic Number 0x%x **\n", hdr->ih_magic);
507 show_boot_progress (-57);
510 show_boot_progress (57);
512 print_image_hdr(hdr);
514 cnt = (ntohl(hdr->ih_size) + sizeof (image_header_t));
516 nand_read_options_t opts;
517 memset(&opts, 0, sizeof(opts));
518 opts.buffer = (u_char*) addr;
520 opts.offset = offset;
522 r = nand_read_opts(nand, &opts);
524 r = nand_read(nand, offset, &cnt, (u_char *) addr);
528 puts("** Read error\n");
529 show_boot_progress (-58);
532 show_boot_progress (58);
534 /* Loading ok, update default load address */
538 /* Check if we should attempt an auto-start */
539 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
541 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
544 local_args[1] = NULL;
546 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
548 do_bootm(cmdtp, 0, 1, local_args);
554 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
556 char *boot_device = NULL;
558 ulong addr, offset = 0;
559 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
560 struct mtd_device *dev;
561 struct part_info *part;
565 char *p = (argc == 2) ? argv[1] : argv[2];
566 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
567 (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
568 if (dev->id->type != MTD_DEV_TYPE_NAND) {
569 puts("Not a NAND device\n");
575 addr = simple_strtoul(argv[1], NULL, 16);
577 addr = CFG_LOAD_ADDR;
578 return nand_load_image(cmdtp, &nand_info[dev->id->num],
579 part->offset, addr, argv[0]);
584 show_boot_progress(52);
587 addr = CFG_LOAD_ADDR;
588 boot_device = getenv("bootdevice");
591 addr = simple_strtoul(argv[1], NULL, 16);
592 boot_device = getenv("bootdevice");
595 addr = simple_strtoul(argv[1], NULL, 16);
596 boot_device = argv[2];
599 addr = simple_strtoul(argv[1], NULL, 16);
600 boot_device = argv[2];
601 offset = simple_strtoul(argv[3], NULL, 16);
604 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
607 printf("Usage:\n%s\n", cmdtp->usage);
608 show_boot_progress(-53);
612 show_boot_progress(53);
614 puts("\n** No boot device **\n");
615 show_boot_progress(-54);
618 show_boot_progress(54);
620 idx = simple_strtoul(boot_device, NULL, 16);
622 if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
623 printf("\n** Device %d not available\n", idx);
624 show_boot_progress(-55);
627 show_boot_progress(55);
629 return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
632 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
633 "nboot - boot from NAND device\n",
634 "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
638 #else /* CFG_NAND_LEGACY */
641 * Legacy NAND support - to be phased out
647 #include <watchdog.h>
649 #ifdef CONFIG_show_boot_progress
650 # include <status_led.h>
651 # define show_boot_progress(arg) show_boot_progress(arg)
653 # define show_boot_progress(arg)
656 #if defined(CONFIG_CMD_NAND)
657 #include <linux/mtd/nand_legacy.h>
659 #include <linux/mtd/nand_ids.h>
660 #include <jffs2/jffs2.h>
663 #ifdef CONFIG_OMAP1510
664 void archflashwp(void *archdata, int wp);
667 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
672 /* ****************** WARNING *********************
673 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
674 * erase (or at least attempt to erase) blocks that are marked
675 * bad. This can be very handy if you are _sure_ that the block
676 * is OK, say because you marked a good block bad to test bad
677 * block handling and you are done testing, or if you have
678 * accidentally marked blocks bad.
680 * Erasing factory marked bad blocks is a _bad_ idea. If the
681 * erase succeeds there is no reliable way to find them again,
682 * and attempting to program or erase bad blocks can affect
683 * the data in _other_ (good) blocks.
685 #define ALLOW_ERASE_BAD_DEBUG 0
687 #define CONFIG_MTD_NAND_ECC /* enable ECC */
688 #define CONFIG_MTD_NAND_ECC_JFFS2
690 /* bits for nand_legacy_rw() `cmd'; or together as needed */
691 #define NANDRW_READ 0x01
692 #define NANDRW_WRITE 0x00
693 #define NANDRW_JFFS2 0x02
694 #define NANDRW_JFFS2_SKIP 0x04
697 * Imports from nand_legacy.c
699 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
700 extern int curr_device;
701 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
702 size_t len, int clean);
703 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
704 size_t len, size_t *retlen, u_char *buf);
705 extern void nand_print(struct nand_chip *nand);
706 extern void nand_print_bad(struct nand_chip *nand);
707 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
708 size_t len, size_t *retlen, u_char *buf);
709 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
710 size_t len, size_t *retlen, const u_char *buf);
713 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
720 printf ("Usage:\n%s\n", cmdtp->usage);
723 if (strcmp (argv[1], "info") == 0) {
728 for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
729 if (nand_dev_desc[i].ChipID ==
731 continue; /* list only known devices */
732 printf ("Device %d: ", i);
733 nand_print (&nand_dev_desc[i]);
737 } else if (strcmp (argv[1], "device") == 0) {
738 if ((curr_device < 0)
739 || (curr_device >= CFG_MAX_NAND_DEVICE)) {
740 puts ("\nno devices available\n");
743 printf ("\nDevice %d: ", curr_device);
744 nand_print (&nand_dev_desc[curr_device]);
747 } else if (strcmp (argv[1], "bad") == 0) {
748 if ((curr_device < 0)
749 || (curr_device >= CFG_MAX_NAND_DEVICE)) {
750 puts ("\nno devices available\n");
753 printf ("\nDevice %d bad blocks:\n", curr_device);
754 nand_print_bad (&nand_dev_desc[curr_device]);
758 printf ("Usage:\n%s\n", cmdtp->usage);
761 if (strcmp (argv[1], "device") == 0) {
762 int dev = (int) simple_strtoul (argv[2], NULL, 10);
764 printf ("\nDevice %d: ", dev);
765 if (dev >= CFG_MAX_NAND_DEVICE) {
766 puts ("unknown device\n");
769 nand_print (&nand_dev_desc[dev]);
770 /*nand_print (dev); */
772 if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
778 puts ("... is now current device\n");
781 } else if (strcmp (argv[1], "erase") == 0
782 && strcmp (argv[2], "clean") == 0) {
783 struct nand_chip *nand = &nand_dev_desc[curr_device];
785 ulong size = nand->totlen;
788 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
790 ret = nand_legacy_erase (nand, off, size, 1);
792 printf ("%s\n", ret ? "ERROR" : "OK");
797 printf ("Usage:\n%s\n", cmdtp->usage);
800 /* at least 4 args */
802 if (strncmp (argv[1], "read", 4) == 0 ||
803 strncmp (argv[1], "write", 5) == 0) {
804 ulong addr = simple_strtoul (argv[2], NULL, 16);
805 ulong off = simple_strtoul (argv[3], NULL, 16);
806 ulong size = simple_strtoul (argv[4], NULL, 16);
807 int cmd = (strncmp (argv[1], "read", 4) == 0) ?
808 NANDRW_READ : NANDRW_WRITE;
810 char *cmdtail = strchr (argv[1], '.');
812 if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
813 /* read out-of-band data */
814 if (cmd & NANDRW_READ) {
815 ret = nand_read_oob (nand_dev_desc + curr_device,
816 off, size, (size_t *) & total,
819 ret = nand_write_oob (nand_dev_desc + curr_device,
820 off, size, (size_t *) & total,
824 } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
825 cmd |= NANDRW_JFFS2; /* skip bad blocks */
826 else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
827 cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
828 if (cmd & NANDRW_READ)
829 cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
832 /* need ".e" same as ".j" for compatibility with older units */
833 else if (cmdtail && !strcmp (cmdtail, ".e"))
834 cmd |= NANDRW_JFFS2; /* skip bad blocks */
836 #ifdef CFG_NAND_SKIP_BAD_DOT_I
837 /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
838 /* ".i" for image -> read skips bad block (no 0xff) */
839 else if (cmdtail && !strcmp (cmdtail, ".i")) {
840 cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
841 if (cmd & NANDRW_READ)
842 cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
844 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
846 printf ("Usage:\n%s\n", cmdtp->usage);
850 printf ("\nNAND %s: device %d offset %ld, size %ld ...\n",
851 (cmd & NANDRW_READ) ? "read" : "write",
852 curr_device, off, size);
854 ret = nand_legacy_rw (nand_dev_desc + curr_device,
859 printf (" %d bytes %s: %s\n", total,
860 (cmd & NANDRW_READ) ? "read" : "written",
861 ret ? "ERROR" : "OK");
864 } else if (strcmp (argv[1], "erase") == 0 &&
865 (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
866 int clean = argc == 5;
868 simple_strtoul (argv[2 + clean], NULL, 16);
870 simple_strtoul (argv[3 + clean], NULL, 16);
873 printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
874 curr_device, off, size);
876 ret = nand_legacy_erase (nand_dev_desc + curr_device,
879 printf ("%s\n", ret ? "ERROR" : "OK");
883 printf ("Usage:\n%s\n", cmdtp->usage);
893 "nand - legacy NAND sub-system\n",
894 "info - show available NAND devices\n"
895 "nand device [dev] - show or set current device\n"
896 "nand read[.jffs2[s]] addr off size\n"
897 "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
898 " at offset `off' to/from memory address `addr'\n"
899 "nand erase [clean] [off size] - erase `size' bytes from\n"
900 " offset `off' (entire device if not specified)\n"
901 "nand bad - show bad blocks\n"
902 "nand read.oob addr off size - read out-of-band data\n"
903 "nand write.oob addr off size - read out-of-band data\n"
906 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
908 char *boot_device = NULL;
916 show_boot_progress (52);
919 addr = CFG_LOAD_ADDR;
920 boot_device = getenv ("bootdevice");
923 addr = simple_strtoul(argv[1], NULL, 16);
924 boot_device = getenv ("bootdevice");
927 addr = simple_strtoul(argv[1], NULL, 16);
928 boot_device = argv[2];
931 addr = simple_strtoul(argv[1], NULL, 16);
932 boot_device = argv[2];
933 offset = simple_strtoul(argv[3], NULL, 16);
936 printf ("Usage:\n%s\n", cmdtp->usage);
937 show_boot_progress (-53);
941 show_boot_progress (53);
943 puts ("\n** No boot device **\n");
944 show_boot_progress (-54);
947 show_boot_progress (54);
949 dev = simple_strtoul(boot_device, &ep, 16);
951 if ((dev >= CFG_MAX_NAND_DEVICE) ||
952 (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
953 printf ("\n** Device %d not available\n", dev);
954 show_boot_progress (-55);
957 show_boot_progress (55);
959 printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
960 dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
963 if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
964 SECTORSIZE, NULL, (u_char *)addr)) {
965 printf ("** Read error on %d\n", dev);
966 show_boot_progress (-56);
969 show_boot_progress (56);
971 hdr = (image_header_t *)addr;
973 if (ntohl(hdr->ih_magic) == IH_MAGIC) {
975 print_image_hdr (hdr);
977 cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t));
980 printf ("\n** Bad Magic Number 0x%x **\n", ntohl(hdr->ih_magic));
981 show_boot_progress (-57);
984 show_boot_progress (57);
986 if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
987 offset + SECTORSIZE, cnt, NULL,
988 (u_char *)(addr+SECTORSIZE))) {
989 printf ("** Read error on %d\n", dev);
990 show_boot_progress (-58);
993 show_boot_progress (58);
995 /* Loading ok, update default load address */
999 /* Check if we should attempt an auto-start */
1000 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1001 char *local_args[2];
1002 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1004 local_args[0] = argv[0];
1005 local_args[1] = NULL;
1007 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1009 do_bootm (cmdtp, 0, 1, local_args);
1016 nboot, 4, 1, do_nandboot,
1017 "nboot - boot from NAND device\n",
1023 #endif /* CFG_NAND_LEGACY */