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);
350 } else if (s != NULL && !strcmp(s, ".oob")) {
351 /* read out-of-band data */
353 ret = nand->read_oob(nand, off, size, (size_t *) &size,
356 ret = nand->write_oob(nand, off, size, (size_t *) &size,
360 ret = nand_read(nand, off, &size, (u_char *)addr);
362 ret = nand_write(nand, off, &size, (u_char *)addr);
365 printf(" %d bytes %s: %s\n", size,
366 read ? "read" : "written", ret ? "ERROR" : "OK");
368 return ret == 0 ? 0 : 1;
371 if (strcmp(cmd, "markbad") == 0) {
372 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
374 int ret = nand->block_markbad(nand, addr);
376 printf("block 0x%08lx successfully marked as bad\n",
380 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
385 if (strcmp(cmd, "biterr") == 0) {
390 if (strcmp(cmd, "lock") == 0) {
394 if (!strcmp("tight", argv[2]))
396 if (!strcmp("status", argv[2]))
401 ulong block_start = 0;
403 int last_status = -1;
405 struct nand_chip *nand_chip = nand->priv;
406 /* check the WP bit */
407 nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1);
408 printf("device is %swrite protected\n",
409 (nand_chip->read_byte(nand) & 0x80 ?
412 for (off = 0; off < nand->size; off += nand->oobblock) {
413 int s = nand_get_lock_status(nand, off);
415 /* print message only if status has changed
418 if (off == nand->size - nand->oobblock
419 || (s != last_status && off != 0)) {
421 printf("%08x - %08x: %8d pages %s%s%s\n",
424 (off-block_start)/nand->oobblock,
425 ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
426 ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
427 ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
433 if (!nand_lock(nand, tight)) {
434 puts("NAND flash successfully locked\n");
436 puts("Error locking NAND flash\n");
443 if (strcmp(cmd, "unlock") == 0) {
444 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
447 if (!nand_unlock(nand, off, size)) {
448 puts("NAND flash successfully unlocked\n");
450 puts("Error unlocking NAND flash, "
451 "write and erase will probably fail\n");
458 printf("Usage:\n%s\n", cmdtp->usage);
462 U_BOOT_CMD(nand, 5, 1, do_nand,
463 "nand - NAND sub-system\n",
464 "info - show available NAND devices\n"
465 "nand device [dev] - show or set current device\n"
466 "nand read[.jffs2] - addr off|partition size\n"
467 "nand write[.jffs2] - addr off|partition size - read/write `size' bytes starting\n"
468 " at offset `off' to/from memory address `addr'\n"
469 "nand erase [clean] [off size] - erase `size' bytes from\n"
470 " offset `off' (entire device if not specified)\n"
471 "nand bad - show bad blocks\n"
472 "nand dump[.oob] off - dump page\n"
473 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
474 "nand markbad off - mark bad block at offset (UNSAFE)\n"
475 "nand biterr off - make a bit error at offset (UNSAFE)\n"
476 "nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
477 "nand unlock [offset] [size] - unlock section\n");
479 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
480 ulong offset, ulong addr, char *cmd)
488 s = strchr(cmd, '.');
490 (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
493 printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
495 cnt = nand->oobblock;
497 nand_read_options_t opts;
498 memset(&opts, 0, sizeof(opts));
499 opts.buffer = (u_char*) addr;
501 opts.offset = offset;
503 r = nand_read_opts(nand, &opts);
505 r = nand_read(nand, offset, &cnt, (u_char *) addr);
509 puts("** Read error\n");
510 show_boot_progress (-56);
513 show_boot_progress (56);
515 switch (gen_image_get_format ((void *)addr)) {
516 case IMAGE_FORMAT_LEGACY:
517 hdr = (image_header_t *)addr;
519 if (!image_check_magic (hdr)) {
520 printf("\n** Bad Magic Number 0x%x **\n",
521 image_get_magic (hdr));
522 show_boot_progress (-57);
525 show_boot_progress (57);
527 image_print_contents (hdr);
529 cnt = image_get_image_size (hdr);
531 #if defined(CONFIG_FIT)
532 case IMAGE_FORMAT_FIT:
533 fit_unsupported ("nand_load_image");
537 puts ("** Unknown image type\n");
542 nand_read_options_t opts;
543 memset(&opts, 0, sizeof(opts));
544 opts.buffer = (u_char*) addr;
546 opts.offset = offset;
548 r = nand_read_opts(nand, &opts);
550 r = nand_read(nand, offset, &cnt, (u_char *) addr);
554 puts("** Read error\n");
555 show_boot_progress (-58);
558 show_boot_progress (58);
560 /* Loading ok, update default load address */
564 /* Check if we should attempt an auto-start */
565 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
567 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
570 local_args[1] = NULL;
572 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
574 do_bootm(cmdtp, 0, 1, local_args);
580 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
582 char *boot_device = NULL;
584 ulong addr, offset = 0;
585 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
586 struct mtd_device *dev;
587 struct part_info *part;
591 char *p = (argc == 2) ? argv[1] : argv[2];
592 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
593 (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
594 if (dev->id->type != MTD_DEV_TYPE_NAND) {
595 puts("Not a NAND device\n");
601 addr = simple_strtoul(argv[1], NULL, 16);
603 addr = CFG_LOAD_ADDR;
604 return nand_load_image(cmdtp, &nand_info[dev->id->num],
605 part->offset, addr, argv[0]);
610 show_boot_progress(52);
613 addr = CFG_LOAD_ADDR;
614 boot_device = getenv("bootdevice");
617 addr = simple_strtoul(argv[1], NULL, 16);
618 boot_device = getenv("bootdevice");
621 addr = simple_strtoul(argv[1], NULL, 16);
622 boot_device = argv[2];
625 addr = simple_strtoul(argv[1], NULL, 16);
626 boot_device = argv[2];
627 offset = simple_strtoul(argv[3], NULL, 16);
630 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
633 printf("Usage:\n%s\n", cmdtp->usage);
634 show_boot_progress(-53);
638 show_boot_progress(53);
640 puts("\n** No boot device **\n");
641 show_boot_progress(-54);
644 show_boot_progress(54);
646 idx = simple_strtoul(boot_device, NULL, 16);
648 if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
649 printf("\n** Device %d not available\n", idx);
650 show_boot_progress(-55);
653 show_boot_progress(55);
655 return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
658 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
659 "nboot - boot from NAND device\n",
660 "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
664 #else /* CFG_NAND_LEGACY */
667 * Legacy NAND support - to be phased out
673 #include <watchdog.h>
675 #ifdef CONFIG_show_boot_progress
676 # include <status_led.h>
677 # define show_boot_progress(arg) show_boot_progress(arg)
679 # define show_boot_progress(arg)
682 #if defined(CONFIG_CMD_NAND)
683 #include <linux/mtd/nand_legacy.h>
685 #include <linux/mtd/nand_ids.h>
686 #include <jffs2/jffs2.h>
689 #ifdef CONFIG_OMAP1510
690 void archflashwp(void *archdata, int wp);
693 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
698 /* ****************** WARNING *********************
699 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
700 * erase (or at least attempt to erase) blocks that are marked
701 * bad. This can be very handy if you are _sure_ that the block
702 * is OK, say because you marked a good block bad to test bad
703 * block handling and you are done testing, or if you have
704 * accidentally marked blocks bad.
706 * Erasing factory marked bad blocks is a _bad_ idea. If the
707 * erase succeeds there is no reliable way to find them again,
708 * and attempting to program or erase bad blocks can affect
709 * the data in _other_ (good) blocks.
711 #define ALLOW_ERASE_BAD_DEBUG 0
713 #define CONFIG_MTD_NAND_ECC /* enable ECC */
714 #define CONFIG_MTD_NAND_ECC_JFFS2
716 /* bits for nand_legacy_rw() `cmd'; or together as needed */
717 #define NANDRW_READ 0x01
718 #define NANDRW_WRITE 0x00
719 #define NANDRW_JFFS2 0x02
720 #define NANDRW_JFFS2_SKIP 0x04
723 * Imports from nand_legacy.c
725 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
726 extern int curr_device;
727 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
728 size_t len, int clean);
729 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
730 size_t len, size_t *retlen, u_char *buf);
731 extern void nand_print(struct nand_chip *nand);
732 extern void nand_print_bad(struct nand_chip *nand);
733 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
734 size_t len, size_t *retlen, u_char *buf);
735 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
736 size_t len, size_t *retlen, const u_char *buf);
739 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
746 printf ("Usage:\n%s\n", cmdtp->usage);
749 if (strcmp (argv[1], "info") == 0) {
754 for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
755 if (nand_dev_desc[i].ChipID ==
757 continue; /* list only known devices */
758 printf ("Device %d: ", i);
759 nand_print (&nand_dev_desc[i]);
763 } else if (strcmp (argv[1], "device") == 0) {
764 if ((curr_device < 0)
765 || (curr_device >= CFG_MAX_NAND_DEVICE)) {
766 puts ("\nno devices available\n");
769 printf ("\nDevice %d: ", curr_device);
770 nand_print (&nand_dev_desc[curr_device]);
773 } else if (strcmp (argv[1], "bad") == 0) {
774 if ((curr_device < 0)
775 || (curr_device >= CFG_MAX_NAND_DEVICE)) {
776 puts ("\nno devices available\n");
779 printf ("\nDevice %d bad blocks:\n", curr_device);
780 nand_print_bad (&nand_dev_desc[curr_device]);
784 printf ("Usage:\n%s\n", cmdtp->usage);
787 if (strcmp (argv[1], "device") == 0) {
788 int dev = (int) simple_strtoul (argv[2], NULL, 10);
790 printf ("\nDevice %d: ", dev);
791 if (dev >= CFG_MAX_NAND_DEVICE) {
792 puts ("unknown device\n");
795 nand_print (&nand_dev_desc[dev]);
796 /*nand_print (dev); */
798 if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
804 puts ("... is now current device\n");
807 } else if (strcmp (argv[1], "erase") == 0
808 && strcmp (argv[2], "clean") == 0) {
809 struct nand_chip *nand = &nand_dev_desc[curr_device];
811 ulong size = nand->totlen;
814 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
816 ret = nand_legacy_erase (nand, off, size, 1);
818 printf ("%s\n", ret ? "ERROR" : "OK");
823 printf ("Usage:\n%s\n", cmdtp->usage);
826 /* at least 4 args */
828 if (strncmp (argv[1], "read", 4) == 0 ||
829 strncmp (argv[1], "write", 5) == 0) {
830 ulong addr = simple_strtoul (argv[2], NULL, 16);
831 ulong off = simple_strtoul (argv[3], NULL, 16);
832 ulong size = simple_strtoul (argv[4], NULL, 16);
833 int cmd = (strncmp (argv[1], "read", 4) == 0) ?
834 NANDRW_READ : NANDRW_WRITE;
836 char *cmdtail = strchr (argv[1], '.');
838 if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
839 /* read out-of-band data */
840 if (cmd & NANDRW_READ) {
841 ret = nand_read_oob (nand_dev_desc + curr_device,
842 off, size, (size_t *) & total,
845 ret = nand_write_oob (nand_dev_desc + curr_device,
846 off, size, (size_t *) & total,
850 } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
851 cmd |= NANDRW_JFFS2; /* skip bad blocks */
852 else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
853 cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
854 if (cmd & NANDRW_READ)
855 cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
858 /* need ".e" same as ".j" for compatibility with older units */
859 else if (cmdtail && !strcmp (cmdtail, ".e"))
860 cmd |= NANDRW_JFFS2; /* skip bad blocks */
862 #ifdef CFG_NAND_SKIP_BAD_DOT_I
863 /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
864 /* ".i" for image -> read skips bad block (no 0xff) */
865 else if (cmdtail && !strcmp (cmdtail, ".i")) {
866 cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
867 if (cmd & NANDRW_READ)
868 cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
870 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
872 printf ("Usage:\n%s\n", cmdtp->usage);
876 printf ("\nNAND %s: device %d offset %ld, size %ld ...\n",
877 (cmd & NANDRW_READ) ? "read" : "write",
878 curr_device, off, size);
880 ret = nand_legacy_rw (nand_dev_desc + curr_device,
885 printf (" %d bytes %s: %s\n", total,
886 (cmd & NANDRW_READ) ? "read" : "written",
887 ret ? "ERROR" : "OK");
890 } else if (strcmp (argv[1], "erase") == 0 &&
891 (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
892 int clean = argc == 5;
894 simple_strtoul (argv[2 + clean], NULL, 16);
896 simple_strtoul (argv[3 + clean], NULL, 16);
899 printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
900 curr_device, off, size);
902 ret = nand_legacy_erase (nand_dev_desc + curr_device,
905 printf ("%s\n", ret ? "ERROR" : "OK");
909 printf ("Usage:\n%s\n", cmdtp->usage);
919 "nand - legacy NAND sub-system\n",
920 "info - show available NAND devices\n"
921 "nand device [dev] - show or set current device\n"
922 "nand read[.jffs2[s]] addr off size\n"
923 "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
924 " at offset `off' to/from memory address `addr'\n"
925 "nand erase [clean] [off size] - erase `size' bytes from\n"
926 " offset `off' (entire device if not specified)\n"
927 "nand bad - show bad blocks\n"
928 "nand read.oob addr off size - read out-of-band data\n"
929 "nand write.oob addr off size - read out-of-band data\n"
932 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
934 char *boot_device = NULL;
942 show_boot_progress (52);
945 addr = CFG_LOAD_ADDR;
946 boot_device = getenv ("bootdevice");
949 addr = simple_strtoul(argv[1], NULL, 16);
950 boot_device = getenv ("bootdevice");
953 addr = simple_strtoul(argv[1], NULL, 16);
954 boot_device = argv[2];
957 addr = simple_strtoul(argv[1], NULL, 16);
958 boot_device = argv[2];
959 offset = simple_strtoul(argv[3], NULL, 16);
962 printf ("Usage:\n%s\n", cmdtp->usage);
963 show_boot_progress (-53);
967 show_boot_progress (53);
969 puts ("\n** No boot device **\n");
970 show_boot_progress (-54);
973 show_boot_progress (54);
975 dev = simple_strtoul(boot_device, &ep, 16);
977 if ((dev >= CFG_MAX_NAND_DEVICE) ||
978 (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
979 printf ("\n** Device %d not available\n", dev);
980 show_boot_progress (-55);
983 show_boot_progress (55);
985 printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
986 dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
989 if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
990 SECTORSIZE, NULL, (u_char *)addr)) {
991 printf ("** Read error on %d\n", dev);
992 show_boot_progress (-56);
995 show_boot_progress (56);
997 switch (gen_image_get_format ((void *)addr)) {
998 case IMAGE_FORMAT_LEGACY:
999 hdr = (image_header_t *)addr;
1001 if (image_check_magic (hdr)) {
1003 image_print_contents (hdr);
1005 cnt = image_get_image_size (hdr);
1008 printf ("\n** Bad Magic Number 0x%x **\n",
1009 image_get_magic (hdr));
1010 show_boot_progress (-57);
1014 #if defined(CONFIG_FIT)
1015 case IMAGE_FORMAT_FIT:
1016 fit_unsupported ("nboot");
1020 puts ("** Unknown image type\n");
1023 show_boot_progress (57);
1025 if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
1026 offset + SECTORSIZE, cnt, NULL,
1027 (u_char *)(addr+SECTORSIZE))) {
1028 printf ("** Read error on %d\n", dev);
1029 show_boot_progress (-58);
1032 show_boot_progress (58);
1034 /* Loading ok, update default load address */
1038 /* Check if we should attempt an auto-start */
1039 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1040 char *local_args[2];
1041 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1043 local_args[0] = argv[0];
1044 local_args[1] = NULL;
1046 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1048 do_bootm (cmdtp, 0, 1, local_args);
1055 nboot, 4, 1, do_nandboot,
1056 "nboot - boot from NAND device\n",
1062 #endif /* CFG_NAND_LEGACY */