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, size_t *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], (ulong *)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], (ulong *)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[])
165 #ifdef CFG_NAND_QUIET
166 int quiet = CFG_NAND_QUIET;
170 const char *quiet_str = getenv("quiet");
172 /* at least two arguments please */
177 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
181 if (strcmp(cmd, "info") == 0) {
184 for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
185 if (nand_info[i].name)
186 printf("Device %d: %s, sector size %lu KiB\n",
187 i, nand_info[i].name,
188 nand_info[i].erasesize >> 10);
193 if (strcmp(cmd, "device") == 0) {
196 if ((nand_curr_device < 0) ||
197 (nand_curr_device >= CFG_MAX_NAND_DEVICE))
198 puts("\nno devices available\n");
200 printf("\nDevice %d: %s\n", nand_curr_device,
201 nand_info[nand_curr_device].name);
204 dev = (int)simple_strtoul(argv[2], NULL, 10);
205 if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) {
206 puts("No such device\n");
209 printf("Device %d: %s", dev, nand_info[dev].name);
210 puts("... is now current device\n");
211 nand_curr_device = dev;
213 #ifdef CFG_NAND_SELECT_DEVICE
215 * Select the chip in the board/cpu specific driver
217 board_nand_select_device(nand_info[dev].priv, dev);
223 if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 &&
224 strncmp(cmd, "dump", 4) != 0 &&
225 strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 &&
226 strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 &&
227 strcmp(cmd, "biterr") != 0 &&
228 strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 )
231 /* the following commands operate on the current device */
232 if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE ||
233 !nand_info[nand_curr_device].name) {
234 puts("\nno devices available\n");
237 nand = &nand_info[nand_curr_device];
239 if (strcmp(cmd, "bad") == 0) {
240 printf("\nDevice %d bad blocks:\n", nand_curr_device);
241 for (off = 0; off < nand->size; off += nand->erasesize)
242 if (nand_block_isbad(nand, off))
243 printf(" %08x\n", off);
250 * nand erase [clean] [off size]
252 if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) {
253 nand_erase_options_t opts;
254 /* "clean" at index 2 means request to write cleanmarker */
255 int clean = argc > 2 && !strcmp("clean", argv[2]);
256 int o = clean ? 3 : 2;
257 int scrub = !strcmp(cmd, "scrub");
259 printf("\nNAND %s: ", scrub ? "scrub" : "erase");
260 /* skip first two or three arguments, look for offset and size */
261 if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
264 memset(&opts, 0, sizeof(opts));
272 "scrub option will erase all factory set "
275 "There is no reliable way to recover them.\n"
277 "Use this command only for testing purposes "
280 "are sure of what you are doing!\n"
281 "\nReally scrub this NAND flash? <y/N>\n");
283 if (getc() == 'y' && getc() == '\r') {
286 puts("scrub aborted\n");
290 ret = nand_erase_opts(nand, &opts);
291 printf("%s\n", ret ? "ERROR" : "OK");
293 return ret == 0 ? 0 : 1;
296 if (strncmp(cmd, "dump", 4) == 0) {
300 s = strchr(cmd, '.');
301 off = (int)simple_strtoul(argv[2], NULL, 16);
303 if (s != NULL && strcmp(s, ".oob") == 0)
304 ret = nand_dump_oob(nand, off);
306 ret = nand_dump(nand, off);
308 return ret == 0 ? 1 : 0;
313 if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
319 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
321 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
322 printf("\nNAND %s: ", read ? "read" : "write");
323 if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
326 s = strchr(cmd, '.');
328 (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) {
331 nand_read_options_t opts;
332 memset(&opts, 0, sizeof(opts));
333 opts.buffer = (u_char*) addr;
337 ret = nand_read_opts(nand, &opts);
340 nand_write_options_t opts;
341 memset(&opts, 0, sizeof(opts));
342 opts.buffer = (u_char*) addr;
345 /* opts.forcejffs2 = 1; */
349 ret = nand_write_opts(nand, &opts);
351 } else if (s != NULL && !strcmp(s, ".oob")) {
352 /* read out-of-band data */
354 ret = nand->read_oob(nand, off, size, &size,
357 ret = nand->write_oob(nand, off, size, &size,
361 ret = nand_read(nand, off, &size, (u_char *)addr);
363 ret = nand_write(nand, off, &size, (u_char *)addr);
366 printf(" %d bytes %s: %s\n", size,
367 read ? "read" : "written", ret ? "ERROR" : "OK");
369 return ret == 0 ? 0 : 1;
372 if (strcmp(cmd, "markbad") == 0) {
373 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
375 int ret = nand->block_markbad(nand, addr);
377 printf("block 0x%08lx successfully marked as bad\n",
381 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
386 if (strcmp(cmd, "biterr") == 0) {
391 if (strcmp(cmd, "lock") == 0) {
395 if (!strcmp("tight", argv[2]))
397 if (!strcmp("status", argv[2]))
402 ulong block_start = 0;
404 int last_status = -1;
406 struct nand_chip *nand_chip = nand->priv;
407 /* check the WP bit */
408 nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1);
409 printf("device is %swrite protected\n",
410 (nand_chip->read_byte(nand) & 0x80 ?
413 for (off = 0; off < nand->size; off += nand->oobblock) {
414 int s = nand_get_lock_status(nand, off);
416 /* print message only if status has changed
419 if (off == nand->size - nand->oobblock
420 || (s != last_status && off != 0)) {
422 printf("%08x - %08x: %8d pages %s%s%s\n",
425 (off-block_start)/nand->oobblock,
426 ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
427 ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
428 ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
434 if (!nand_lock(nand, tight)) {
435 puts("NAND flash successfully locked\n");
437 puts("Error locking NAND flash\n");
444 if (strcmp(cmd, "unlock") == 0) {
445 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
448 if (!nand_unlock(nand, off, size)) {
449 puts("NAND flash successfully unlocked\n");
451 puts("Error unlocking NAND flash, "
452 "write and erase will probably fail\n");
459 printf("Usage:\n%s\n", cmdtp->usage);
463 U_BOOT_CMD(nand, 5, 1, do_nand,
464 "nand - NAND sub-system\n",
465 "info - show available NAND devices\n"
466 "nand device [dev] - show or set current device\n"
467 "nand read[.jffs2] - addr off|partition size\n"
468 "nand write[.jffs2] - addr off|partition size - read/write `size' bytes starting\n"
469 " at offset `off' to/from memory address `addr'\n"
470 "nand erase [clean] [off size] - erase `size' bytes from\n"
471 " offset `off' (entire device if not specified)\n"
472 "nand bad - show bad blocks\n"
473 "nand dump[.oob] off - dump page\n"
474 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
475 "nand markbad off - mark bad block at offset (UNSAFE)\n"
476 "nand biterr off - make a bit error at offset (UNSAFE)\n"
477 "nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
478 "nand unlock [offset] [size] - unlock section\n");
480 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
481 ulong offset, ulong addr, char *cmd)
488 #if defined(CONFIG_FIT)
492 s = strchr(cmd, '.');
494 (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
497 printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
499 cnt = nand->oobblock;
501 nand_read_options_t opts;
502 memset(&opts, 0, sizeof(opts));
503 opts.buffer = (u_char*) addr;
505 opts.offset = offset;
507 r = nand_read_opts(nand, &opts);
509 r = nand_read(nand, offset, &cnt, (u_char *) addr);
513 puts("** Read error\n");
514 show_boot_progress (-56);
517 show_boot_progress (56);
519 switch (genimg_get_format ((void *)addr)) {
520 case IMAGE_FORMAT_LEGACY:
521 hdr = (image_header_t *)addr;
523 show_boot_progress (57);
524 image_print_contents (hdr);
526 cnt = image_get_image_size (hdr);
528 #if defined(CONFIG_FIT)
529 case IMAGE_FORMAT_FIT:
530 fit_hdr = (const void *)addr;
531 if (!fit_check_format (fit_hdr)) {
532 show_boot_progress (-150);
533 puts ("** Bad FIT image format\n");
536 show_boot_progress (151);
537 puts ("Fit image detected...\n");
539 cnt = fit_get_size (fit_hdr);
543 show_boot_progress (-57);
544 puts ("** Unknown image type\n");
549 nand_read_options_t opts;
550 memset(&opts, 0, sizeof(opts));
551 opts.buffer = (u_char*) addr;
553 opts.offset = offset;
555 r = nand_read_opts(nand, &opts);
557 r = nand_read(nand, offset, &cnt, (u_char *) addr);
561 puts("** Read error\n");
562 show_boot_progress (-58);
565 show_boot_progress (58);
567 #if defined(CONFIG_FIT)
568 /* This cannot be done earlier, we need complete FIT image in RAM first */
569 if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT)
570 fit_print_contents ((const void *)addr);
573 /* Loading ok, update default load address */
577 /* Check if we should attempt an auto-start */
578 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
580 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
583 local_args[1] = NULL;
585 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
587 do_bootm(cmdtp, 0, 1, local_args);
593 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
595 char *boot_device = NULL;
597 ulong addr, offset = 0;
598 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
599 struct mtd_device *dev;
600 struct part_info *part;
604 char *p = (argc == 2) ? argv[1] : argv[2];
605 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
606 (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
607 if (dev->id->type != MTD_DEV_TYPE_NAND) {
608 puts("Not a NAND device\n");
614 addr = simple_strtoul(argv[1], NULL, 16);
616 addr = CFG_LOAD_ADDR;
617 return nand_load_image(cmdtp, &nand_info[dev->id->num],
618 part->offset, addr, argv[0]);
623 show_boot_progress(52);
626 addr = CFG_LOAD_ADDR;
627 boot_device = getenv("bootdevice");
630 addr = simple_strtoul(argv[1], NULL, 16);
631 boot_device = getenv("bootdevice");
634 addr = simple_strtoul(argv[1], NULL, 16);
635 boot_device = argv[2];
638 addr = simple_strtoul(argv[1], NULL, 16);
639 boot_device = argv[2];
640 offset = simple_strtoul(argv[3], NULL, 16);
643 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
646 printf("Usage:\n%s\n", cmdtp->usage);
647 show_boot_progress(-53);
651 show_boot_progress(53);
653 puts("\n** No boot device **\n");
654 show_boot_progress(-54);
657 show_boot_progress(54);
659 idx = simple_strtoul(boot_device, NULL, 16);
661 if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
662 printf("\n** Device %d not available\n", idx);
663 show_boot_progress(-55);
666 show_boot_progress(55);
668 return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
671 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
672 "nboot - boot from NAND device\n",
673 "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
677 #else /* CFG_NAND_LEGACY */
680 * Legacy NAND support - to be phased out
686 #include <watchdog.h>
688 #ifdef CONFIG_show_boot_progress
689 # include <status_led.h>
690 # define show_boot_progress(arg) show_boot_progress(arg)
692 # define show_boot_progress(arg)
695 #if defined(CONFIG_CMD_NAND)
696 #include <linux/mtd/nand_legacy.h>
698 #include <linux/mtd/nand_ids.h>
699 #include <jffs2/jffs2.h>
702 #ifdef CONFIG_OMAP1510
703 void archflashwp(void *archdata, int wp);
706 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
711 /* ****************** WARNING *********************
712 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
713 * erase (or at least attempt to erase) blocks that are marked
714 * bad. This can be very handy if you are _sure_ that the block
715 * is OK, say because you marked a good block bad to test bad
716 * block handling and you are done testing, or if you have
717 * accidentally marked blocks bad.
719 * Erasing factory marked bad blocks is a _bad_ idea. If the
720 * erase succeeds there is no reliable way to find them again,
721 * and attempting to program or erase bad blocks can affect
722 * the data in _other_ (good) blocks.
724 #define ALLOW_ERASE_BAD_DEBUG 0
726 #define CONFIG_MTD_NAND_ECC /* enable ECC */
727 #define CONFIG_MTD_NAND_ECC_JFFS2
729 /* bits for nand_legacy_rw() `cmd'; or together as needed */
730 #define NANDRW_READ 0x01
731 #define NANDRW_WRITE 0x00
732 #define NANDRW_JFFS2 0x02
733 #define NANDRW_JFFS2_SKIP 0x04
736 * Imports from nand_legacy.c
738 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
739 extern int curr_device;
740 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
741 size_t len, int clean);
742 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
743 size_t len, size_t *retlen, u_char *buf);
744 extern void nand_print(struct nand_chip *nand);
745 extern void nand_print_bad(struct nand_chip *nand);
746 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
747 size_t len, size_t *retlen, u_char *buf);
748 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
749 size_t len, size_t *retlen, const u_char *buf);
752 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
759 printf ("Usage:\n%s\n", cmdtp->usage);
762 if (strcmp (argv[1], "info") == 0) {
767 for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
768 if (nand_dev_desc[i].ChipID ==
770 continue; /* list only known devices */
771 printf ("Device %d: ", i);
772 nand_print (&nand_dev_desc[i]);
776 } else if (strcmp (argv[1], "device") == 0) {
777 if ((curr_device < 0)
778 || (curr_device >= CFG_MAX_NAND_DEVICE)) {
779 puts ("\nno devices available\n");
782 printf ("\nDevice %d: ", curr_device);
783 nand_print (&nand_dev_desc[curr_device]);
786 } else if (strcmp (argv[1], "bad") == 0) {
787 if ((curr_device < 0)
788 || (curr_device >= CFG_MAX_NAND_DEVICE)) {
789 puts ("\nno devices available\n");
792 printf ("\nDevice %d bad blocks:\n", curr_device);
793 nand_print_bad (&nand_dev_desc[curr_device]);
797 printf ("Usage:\n%s\n", cmdtp->usage);
800 if (strcmp (argv[1], "device") == 0) {
801 int dev = (int) simple_strtoul (argv[2], NULL, 10);
803 printf ("\nDevice %d: ", dev);
804 if (dev >= CFG_MAX_NAND_DEVICE) {
805 puts ("unknown device\n");
808 nand_print (&nand_dev_desc[dev]);
809 /*nand_print (dev); */
811 if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
817 puts ("... is now current device\n");
820 } else if (strcmp (argv[1], "erase") == 0
821 && strcmp (argv[2], "clean") == 0) {
822 struct nand_chip *nand = &nand_dev_desc[curr_device];
824 ulong size = nand->totlen;
827 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
829 ret = nand_legacy_erase (nand, off, size, 1);
831 printf ("%s\n", ret ? "ERROR" : "OK");
836 printf ("Usage:\n%s\n", cmdtp->usage);
839 /* at least 4 args */
841 if (strncmp (argv[1], "read", 4) == 0 ||
842 strncmp (argv[1], "write", 5) == 0) {
843 ulong addr = simple_strtoul (argv[2], NULL, 16);
844 off_t off = simple_strtoul (argv[3], NULL, 16);
845 size_t size = simple_strtoul (argv[4], NULL, 16);
846 int cmd = (strncmp (argv[1], "read", 4) == 0) ?
847 NANDRW_READ : NANDRW_WRITE;
850 char *cmdtail = strchr (argv[1], '.');
852 if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
853 /* read out-of-band data */
854 if (cmd & NANDRW_READ) {
855 ret = nand_read_oob (nand_dev_desc + curr_device,
859 ret = nand_write_oob (nand_dev_desc + curr_device,
864 } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
865 cmd |= NANDRW_JFFS2; /* skip bad blocks */
866 else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
867 cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
868 if (cmd & NANDRW_READ)
869 cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
872 /* need ".e" same as ".j" for compatibility with older units */
873 else if (cmdtail && !strcmp (cmdtail, ".e"))
874 cmd |= NANDRW_JFFS2; /* skip bad blocks */
876 #ifdef CFG_NAND_SKIP_BAD_DOT_I
877 /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
878 /* ".i" for image -> read skips bad block (no 0xff) */
879 else if (cmdtail && !strcmp (cmdtail, ".i")) {
880 cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
881 if (cmd & NANDRW_READ)
882 cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
884 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
886 printf ("Usage:\n%s\n", cmdtp->usage);
890 printf ("\nNAND %s: device %d offset %ld, size %ld ...\n",
891 (cmd & NANDRW_READ) ? "read" : "write",
892 curr_device, off, size);
894 ret = nand_legacy_rw (nand_dev_desc + curr_device,
899 printf (" %d bytes %s: %s\n", total,
900 (cmd & NANDRW_READ) ? "read" : "written",
901 ret ? "ERROR" : "OK");
904 } else if (strcmp (argv[1], "erase") == 0 &&
905 (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
906 int clean = argc == 5;
908 simple_strtoul (argv[2 + clean], NULL, 16);
910 simple_strtoul (argv[3 + clean], NULL, 16);
913 printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
914 curr_device, off, size);
916 ret = nand_legacy_erase (nand_dev_desc + curr_device,
919 printf ("%s\n", ret ? "ERROR" : "OK");
923 printf ("Usage:\n%s\n", cmdtp->usage);
933 "nand - legacy NAND sub-system\n",
934 "info - show available NAND devices\n"
935 "nand device [dev] - show or set current device\n"
936 "nand read[.jffs2[s]] addr off size\n"
937 "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
938 " at offset `off' to/from memory address `addr'\n"
939 "nand erase [clean] [off size] - erase `size' bytes from\n"
940 " offset `off' (entire device if not specified)\n"
941 "nand bad - show bad blocks\n"
942 "nand read.oob addr off size - read out-of-band data\n"
943 "nand write.oob addr off size - read out-of-band data\n"
946 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
948 char *boot_device = NULL;
956 #if defined(CONFIG_FIT)
960 show_boot_progress (52);
963 addr = CFG_LOAD_ADDR;
964 boot_device = getenv ("bootdevice");
967 addr = simple_strtoul(argv[1], NULL, 16);
968 boot_device = getenv ("bootdevice");
971 addr = simple_strtoul(argv[1], NULL, 16);
972 boot_device = argv[2];
975 addr = simple_strtoul(argv[1], NULL, 16);
976 boot_device = argv[2];
977 offset = simple_strtoul(argv[3], NULL, 16);
980 printf ("Usage:\n%s\n", cmdtp->usage);
981 show_boot_progress (-53);
985 show_boot_progress (53);
987 puts ("\n** No boot device **\n");
988 show_boot_progress (-54);
991 show_boot_progress (54);
993 dev = simple_strtoul(boot_device, &ep, 16);
995 if ((dev >= CFG_MAX_NAND_DEVICE) ||
996 (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
997 printf ("\n** Device %d not available\n", dev);
998 show_boot_progress (-55);
1001 show_boot_progress (55);
1003 printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1004 dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
1007 if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
1008 SECTORSIZE, NULL, (u_char *)addr)) {
1009 printf ("** Read error on %d\n", dev);
1010 show_boot_progress (-56);
1013 show_boot_progress (56);
1015 switch (genimg_get_format ((void *)addr)) {
1016 case IMAGE_FORMAT_LEGACY:
1017 hdr = (image_header_t *)addr;
1018 image_print_contents (hdr);
1020 cnt = image_get_image_size (hdr);
1023 #if defined(CONFIG_FIT)
1024 case IMAGE_FORMAT_FIT:
1025 fit_hdr = (const void *)addr;
1026 if (!fit_check_format (fit_hdr)) {
1027 show_boot_progress (-150);
1028 puts ("** Bad FIT image format\n");
1031 show_boot_progress (151);
1032 puts ("Fit image detected...\n");
1034 cnt = fit_get_size (fit_hdr);
1038 show_boot_progress (-57);
1039 puts ("** Unknown image type\n");
1042 show_boot_progress (57);
1044 if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
1045 offset + SECTORSIZE, cnt, NULL,
1046 (u_char *)(addr+SECTORSIZE))) {
1047 printf ("** Read error on %d\n", dev);
1048 show_boot_progress (-58);
1051 show_boot_progress (58);
1053 #if defined(CONFIG_FIT)
1054 /* This cannot be done earlier, we need complete FIT image in RAM first */
1055 if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT)
1056 fit_print_contents ((const void *)addr);
1059 /* Loading ok, update default load address */
1063 /* Check if we should attempt an auto-start */
1064 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1065 char *local_args[2];
1066 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1068 local_args[0] = argv[0];
1069 local_args[1] = NULL;
1071 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1073 do_bootm (cmdtp, 0, 1, local_args);
1080 nboot, 4, 1, do_nandboot,
1081 "nboot - boot from NAND device\n",
1087 #endif /* CFG_NAND_LEGACY */