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;
164 #ifdef CFG_NAND_QUIET
165 int quiet = CFG_NAND_QUIET;
169 const char *quiet_str = getenv("quiet");
171 /* at least two arguments please */
176 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
180 if (strcmp(cmd, "info") == 0) {
183 for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
184 if (nand_info[i].name)
185 printf("Device %d: %s, sector size %lu KiB\n",
186 i, nand_info[i].name,
187 nand_info[i].erasesize >> 10);
192 if (strcmp(cmd, "device") == 0) {
195 if ((nand_curr_device < 0) ||
196 (nand_curr_device >= CFG_MAX_NAND_DEVICE))
197 puts("\nno devices available\n");
199 printf("\nDevice %d: %s\n", nand_curr_device,
200 nand_info[nand_curr_device].name);
203 dev = (int)simple_strtoul(argv[2], NULL, 10);
204 if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) {
205 puts("No such device\n");
208 printf("Device %d: %s", dev, nand_info[dev].name);
209 puts("... is now current device\n");
210 nand_curr_device = dev;
212 #ifdef CFG_NAND_SELECT_DEVICE
214 * Select the chip in the board/cpu specific driver
216 board_nand_select_device(nand_info[dev].priv, dev);
222 if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 &&
223 strncmp(cmd, "dump", 4) != 0 &&
224 strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 &&
225 strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 &&
226 strcmp(cmd, "biterr") != 0 &&
227 strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 )
230 /* the following commands operate on the current device */
231 if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE ||
232 !nand_info[nand_curr_device].name) {
233 puts("\nno devices available\n");
236 nand = &nand_info[nand_curr_device];
238 if (strcmp(cmd, "bad") == 0) {
239 printf("\nDevice %d bad blocks:\n", nand_curr_device);
240 for (off = 0; off < nand->size; off += nand->erasesize)
241 if (nand_block_isbad(nand, off))
242 printf(" %08x\n", off);
249 * nand erase [clean] [off size]
251 if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) {
252 nand_erase_options_t opts;
253 /* "clean" at index 2 means request to write cleanmarker */
254 int clean = argc > 2 && !strcmp("clean", argv[2]);
255 int o = clean ? 3 : 2;
256 int scrub = !strcmp(cmd, "scrub");
258 printf("\nNAND %s: ", scrub ? "scrub" : "erase");
259 /* skip first two or three arguments, look for offset and size */
260 if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
263 memset(&opts, 0, sizeof(opts));
271 "scrub option will erase all factory set "
274 "There is no reliable way to recover them.\n"
276 "Use this command only for testing purposes "
279 "are sure of what you are doing!\n"
280 "\nReally scrub this NAND flash? <y/N>\n");
282 if (getc() == 'y' && getc() == '\r') {
285 puts("scrub aborted\n");
289 ret = nand_erase_opts(nand, &opts);
290 printf("%s\n", ret ? "ERROR" : "OK");
292 return ret == 0 ? 0 : 1;
295 if (strncmp(cmd, "dump", 4) == 0) {
299 s = strchr(cmd, '.');
300 off = (int)simple_strtoul(argv[2], NULL, 16);
302 if (s != NULL && strcmp(s, ".oob") == 0)
303 ret = nand_dump_oob(nand, off);
305 ret = nand_dump(nand, off);
307 return ret == 0 ? 1 : 0;
312 if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
318 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
320 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
321 printf("\nNAND %s: ", read ? "read" : "write");
322 if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
325 s = strchr(cmd, '.');
327 (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) {
330 nand_read_options_t opts;
331 memset(&opts, 0, sizeof(opts));
332 opts.buffer = (u_char*) addr;
336 ret = nand_read_opts(nand, &opts);
339 nand_write_options_t opts;
340 memset(&opts, 0, sizeof(opts));
341 opts.buffer = (u_char*) addr;
344 /* opts.forcejffs2 = 1; */
348 ret = nand_write_opts(nand, &opts);
352 ret = nand_read(nand, off, &size, (u_char *)addr);
354 ret = nand_write(nand, off, &size, (u_char *)addr);
357 printf(" %d bytes %s: %s\n", size,
358 read ? "read" : "written", ret ? "ERROR" : "OK");
360 return ret == 0 ? 0 : 1;
363 if (strcmp(cmd, "markbad") == 0) {
364 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
366 int ret = nand->block_markbad(nand, addr);
368 printf("block 0x%08lx successfully marked as bad\n",
372 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
377 if (strcmp(cmd, "biterr") == 0) {
382 if (strcmp(cmd, "lock") == 0) {
386 if (!strcmp("tight", argv[2]))
388 if (!strcmp("status", argv[2]))
393 ulong block_start = 0;
395 int last_status = -1;
397 struct nand_chip *nand_chip = nand->priv;
398 /* check the WP bit */
399 nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1);
400 printf("device is %swrite protected\n",
401 (nand_chip->read_byte(nand) & 0x80 ?
404 for (off = 0; off < nand->size; off += nand->oobblock) {
405 int s = nand_get_lock_status(nand, off);
407 /* print message only if status has changed
410 if (off == nand->size - nand->oobblock
411 || (s != last_status && off != 0)) {
413 printf("%08x - %08x: %8d pages %s%s%s\n",
416 (off-block_start)/nand->oobblock,
417 ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
418 ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
419 ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
425 if (!nand_lock(nand, tight)) {
426 puts("NAND flash successfully locked\n");
428 puts("Error locking NAND flash\n");
435 if (strcmp(cmd, "unlock") == 0) {
436 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
439 if (!nand_unlock(nand, off, size)) {
440 puts("NAND flash successfully unlocked\n");
442 puts("Error unlocking NAND flash, "
443 "write and erase will probably fail\n");
450 printf("Usage:\n%s\n", cmdtp->usage);
454 U_BOOT_CMD(nand, 5, 1, do_nand,
455 "nand - NAND sub-system\n",
456 "info - show available NAND devices\n"
457 "nand device [dev] - show or set current device\n"
458 "nand read[.jffs2] - addr off|partition size\n"
459 "nand write[.jffs2] - addr off|partition size - read/write `size' bytes starting\n"
460 " at offset `off' to/from memory address `addr'\n"
461 "nand erase [clean] [off size] - erase `size' bytes from\n"
462 " offset `off' (entire device if not specified)\n"
463 "nand bad - show bad blocks\n"
464 "nand dump[.oob] off - dump page\n"
465 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
466 "nand markbad off - mark bad block at offset (UNSAFE)\n"
467 "nand biterr off - make a bit error at offset (UNSAFE)\n"
468 "nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
469 "nand unlock [offset] [size] - unlock section\n");
471 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
472 ulong offset, ulong addr, char *cmd)
480 s = strchr(cmd, '.');
482 (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
485 printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
487 cnt = nand->oobblock;
489 nand_read_options_t opts;
490 memset(&opts, 0, sizeof(opts));
491 opts.buffer = (u_char*) addr;
493 opts.offset = offset;
495 r = nand_read_opts(nand, &opts);
497 r = nand_read(nand, offset, &cnt, (u_char *) addr);
501 puts("** Read error\n");
502 show_boot_progress (-56);
505 show_boot_progress (56);
507 hdr = (image_header_t *) addr;
509 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
510 printf("\n** Bad Magic Number 0x%x **\n", hdr->ih_magic);
511 show_boot_progress (-57);
514 show_boot_progress (57);
516 print_image_hdr(hdr);
518 cnt = (ntohl(hdr->ih_size) + sizeof (image_header_t));
520 nand_read_options_t opts;
521 memset(&opts, 0, sizeof(opts));
522 opts.buffer = (u_char*) addr;
524 opts.offset = offset;
526 r = nand_read_opts(nand, &opts);
528 r = nand_read(nand, offset, &cnt, (u_char *) addr);
532 puts("** Read error\n");
533 show_boot_progress (-58);
536 show_boot_progress (58);
538 /* Loading ok, update default load address */
542 /* Check if we should attempt an auto-start */
543 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
545 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
548 local_args[1] = NULL;
550 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
552 do_bootm(cmdtp, 0, 1, local_args);
558 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
560 char *boot_device = NULL;
562 ulong addr, offset = 0;
563 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
564 struct mtd_device *dev;
565 struct part_info *part;
569 char *p = (argc == 2) ? argv[1] : argv[2];
570 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
571 (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
572 if (dev->id->type != MTD_DEV_TYPE_NAND) {
573 puts("Not a NAND device\n");
579 addr = simple_strtoul(argv[1], NULL, 16);
581 addr = CFG_LOAD_ADDR;
582 return nand_load_image(cmdtp, &nand_info[dev->id->num],
583 part->offset, addr, argv[0]);
588 show_boot_progress(52);
591 addr = CFG_LOAD_ADDR;
592 boot_device = getenv("bootdevice");
595 addr = simple_strtoul(argv[1], NULL, 16);
596 boot_device = getenv("bootdevice");
599 addr = simple_strtoul(argv[1], NULL, 16);
600 boot_device = argv[2];
603 addr = simple_strtoul(argv[1], NULL, 16);
604 boot_device = argv[2];
605 offset = simple_strtoul(argv[3], NULL, 16);
608 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
611 printf("Usage:\n%s\n", cmdtp->usage);
612 show_boot_progress(-53);
616 show_boot_progress(53);
618 puts("\n** No boot device **\n");
619 show_boot_progress(-54);
622 show_boot_progress(54);
624 idx = simple_strtoul(boot_device, NULL, 16);
626 if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
627 printf("\n** Device %d not available\n", idx);
628 show_boot_progress(-55);
631 show_boot_progress(55);
633 return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
636 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
637 "nboot - boot from NAND device\n",
638 "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
642 #else /* CFG_NAND_LEGACY */
645 * Legacy NAND support - to be phased out
651 #include <watchdog.h>
653 #ifdef CONFIG_show_boot_progress
654 # include <status_led.h>
655 # define show_boot_progress(arg) show_boot_progress(arg)
657 # define show_boot_progress(arg)
660 #if defined(CONFIG_CMD_NAND)
661 #include <linux/mtd/nand_legacy.h>
663 #include <linux/mtd/nand_ids.h>
664 #include <jffs2/jffs2.h>
667 #ifdef CONFIG_OMAP1510
668 void archflashwp(void *archdata, int wp);
671 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
676 /* ****************** WARNING *********************
677 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
678 * erase (or at least attempt to erase) blocks that are marked
679 * bad. This can be very handy if you are _sure_ that the block
680 * is OK, say because you marked a good block bad to test bad
681 * block handling and you are done testing, or if you have
682 * accidentally marked blocks bad.
684 * Erasing factory marked bad blocks is a _bad_ idea. If the
685 * erase succeeds there is no reliable way to find them again,
686 * and attempting to program or erase bad blocks can affect
687 * the data in _other_ (good) blocks.
689 #define ALLOW_ERASE_BAD_DEBUG 0
691 #define CONFIG_MTD_NAND_ECC /* enable ECC */
692 #define CONFIG_MTD_NAND_ECC_JFFS2
694 /* bits for nand_legacy_rw() `cmd'; or together as needed */
695 #define NANDRW_READ 0x01
696 #define NANDRW_WRITE 0x00
697 #define NANDRW_JFFS2 0x02
698 #define NANDRW_JFFS2_SKIP 0x04
701 * Imports from nand_legacy.c
703 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
704 extern int curr_device;
705 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
706 size_t len, int clean);
707 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
708 size_t len, size_t *retlen, u_char *buf);
709 extern void nand_print(struct nand_chip *nand);
710 extern void nand_print_bad(struct nand_chip *nand);
711 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
712 size_t len, size_t *retlen, u_char *buf);
713 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
714 size_t len, size_t *retlen, const u_char *buf);
717 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
724 printf ("Usage:\n%s\n", cmdtp->usage);
727 if (strcmp (argv[1], "info") == 0) {
732 for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
733 if (nand_dev_desc[i].ChipID ==
735 continue; /* list only known devices */
736 printf ("Device %d: ", i);
737 nand_print (&nand_dev_desc[i]);
741 } else if (strcmp (argv[1], "device") == 0) {
742 if ((curr_device < 0)
743 || (curr_device >= CFG_MAX_NAND_DEVICE)) {
744 puts ("\nno devices available\n");
747 printf ("\nDevice %d: ", curr_device);
748 nand_print (&nand_dev_desc[curr_device]);
751 } else if (strcmp (argv[1], "bad") == 0) {
752 if ((curr_device < 0)
753 || (curr_device >= CFG_MAX_NAND_DEVICE)) {
754 puts ("\nno devices available\n");
757 printf ("\nDevice %d bad blocks:\n", curr_device);
758 nand_print_bad (&nand_dev_desc[curr_device]);
762 printf ("Usage:\n%s\n", cmdtp->usage);
765 if (strcmp (argv[1], "device") == 0) {
766 int dev = (int) simple_strtoul (argv[2], NULL, 10);
768 printf ("\nDevice %d: ", dev);
769 if (dev >= CFG_MAX_NAND_DEVICE) {
770 puts ("unknown device\n");
773 nand_print (&nand_dev_desc[dev]);
774 /*nand_print (dev); */
776 if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
782 puts ("... is now current device\n");
785 } else if (strcmp (argv[1], "erase") == 0
786 && strcmp (argv[2], "clean") == 0) {
787 struct nand_chip *nand = &nand_dev_desc[curr_device];
789 ulong size = nand->totlen;
792 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
794 ret = nand_legacy_erase (nand, off, size, 1);
796 printf ("%s\n", ret ? "ERROR" : "OK");
801 printf ("Usage:\n%s\n", cmdtp->usage);
804 /* at least 4 args */
806 if (strncmp (argv[1], "read", 4) == 0 ||
807 strncmp (argv[1], "write", 5) == 0) {
808 ulong addr = simple_strtoul (argv[2], NULL, 16);
809 ulong off = simple_strtoul (argv[3], NULL, 16);
810 ulong size = simple_strtoul (argv[4], NULL, 16);
811 int cmd = (strncmp (argv[1], "read", 4) == 0) ?
812 NANDRW_READ : NANDRW_WRITE;
814 char *cmdtail = strchr (argv[1], '.');
816 if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
817 /* read out-of-band data */
818 if (cmd & NANDRW_READ) {
819 ret = nand_read_oob (nand_dev_desc + curr_device,
820 off, size, (size_t *) & total,
823 ret = nand_write_oob (nand_dev_desc + curr_device,
824 off, size, (size_t *) & total,
828 } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
829 cmd |= NANDRW_JFFS2; /* skip bad blocks */
830 else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
831 cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
832 if (cmd & NANDRW_READ)
833 cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
836 /* need ".e" same as ".j" for compatibility with older units */
837 else if (cmdtail && !strcmp (cmdtail, ".e"))
838 cmd |= NANDRW_JFFS2; /* skip bad blocks */
840 #ifdef CFG_NAND_SKIP_BAD_DOT_I
841 /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
842 /* ".i" for image -> read skips bad block (no 0xff) */
843 else if (cmdtail && !strcmp (cmdtail, ".i")) {
844 cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
845 if (cmd & NANDRW_READ)
846 cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
848 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
850 printf ("Usage:\n%s\n", cmdtp->usage);
854 printf ("\nNAND %s: device %d offset %ld, size %ld ...\n",
855 (cmd & NANDRW_READ) ? "read" : "write",
856 curr_device, off, size);
858 ret = nand_legacy_rw (nand_dev_desc + curr_device,
863 printf (" %d bytes %s: %s\n", total,
864 (cmd & NANDRW_READ) ? "read" : "written",
865 ret ? "ERROR" : "OK");
868 } else if (strcmp (argv[1], "erase") == 0 &&
869 (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
870 int clean = argc == 5;
872 simple_strtoul (argv[2 + clean], NULL, 16);
874 simple_strtoul (argv[3 + clean], NULL, 16);
877 printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
878 curr_device, off, size);
880 ret = nand_legacy_erase (nand_dev_desc + curr_device,
883 printf ("%s\n", ret ? "ERROR" : "OK");
887 printf ("Usage:\n%s\n", cmdtp->usage);
897 "nand - legacy NAND sub-system\n",
898 "info - show available NAND devices\n"
899 "nand device [dev] - show or set current device\n"
900 "nand read[.jffs2[s]] addr off size\n"
901 "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
902 " at offset `off' to/from memory address `addr'\n"
903 "nand erase [clean] [off size] - erase `size' bytes from\n"
904 " offset `off' (entire device if not specified)\n"
905 "nand bad - show bad blocks\n"
906 "nand read.oob addr off size - read out-of-band data\n"
907 "nand write.oob addr off size - read out-of-band data\n"
910 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
912 char *boot_device = NULL;
920 show_boot_progress (52);
923 addr = CFG_LOAD_ADDR;
924 boot_device = getenv ("bootdevice");
927 addr = simple_strtoul(argv[1], NULL, 16);
928 boot_device = getenv ("bootdevice");
931 addr = simple_strtoul(argv[1], NULL, 16);
932 boot_device = argv[2];
935 addr = simple_strtoul(argv[1], NULL, 16);
936 boot_device = argv[2];
937 offset = simple_strtoul(argv[3], NULL, 16);
940 printf ("Usage:\n%s\n", cmdtp->usage);
941 show_boot_progress (-53);
945 show_boot_progress (53);
947 puts ("\n** No boot device **\n");
948 show_boot_progress (-54);
951 show_boot_progress (54);
953 dev = simple_strtoul(boot_device, &ep, 16);
955 if ((dev >= CFG_MAX_NAND_DEVICE) ||
956 (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
957 printf ("\n** Device %d not available\n", dev);
958 show_boot_progress (-55);
961 show_boot_progress (55);
963 printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
964 dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
967 if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
968 SECTORSIZE, NULL, (u_char *)addr)) {
969 printf ("** Read error on %d\n", dev);
970 show_boot_progress (-56);
973 show_boot_progress (56);
975 hdr = (image_header_t *)addr;
977 if (ntohl(hdr->ih_magic) == IH_MAGIC) {
979 print_image_hdr (hdr);
981 cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t));
984 printf ("\n** Bad Magic Number 0x%x **\n", ntohl(hdr->ih_magic));
985 show_boot_progress (-57);
988 show_boot_progress (57);
990 if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
991 offset + SECTORSIZE, cnt, NULL,
992 (u_char *)(addr+SECTORSIZE))) {
993 printf ("** Read error on %d\n", dev);
994 show_boot_progress (-58);
997 show_boot_progress (58);
999 /* Loading ok, update default load address */
1003 /* Check if we should attempt an auto-start */
1004 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1005 char *local_args[2];
1006 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1008 local_args[0] = argv[0];
1009 local_args[1] = NULL;
1011 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1013 do_bootm (cmdtp, 0, 1, local_args);
1020 nboot, 4, 1, do_nandboot,
1021 "nboot - boot from NAND device\n",
1027 #endif /* CFG_NAND_LEGACY */