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 * Ported 'dynenv' to 'nand env.oob' command
8 * (C) 2010 Nanometrics, Inc.
9 * 'dynenv' -- Dynamic environment offset in NAND OOB
10 * (C) Copyright 2006-2007 OpenMoko, Inc.
11 * Added 16-bit nand support
12 * (C) 2004 Texas Instruments
14 * Copyright 2010, 2012 Freescale Semiconductor
15 * The portions of this file whose copyright is held by Freescale and which
16 * are not considered a derived work of GPL v2-only code may be distributed
17 * and/or modified under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of the
19 * License, or (at your option) any later version.
23 #include <linux/mtd/mtd.h>
27 #include <asm/byteorder.h>
28 #include <jffs2/jffs2.h>
31 #if defined(CONFIG_CMD_MTDPARTS)
33 /* partition 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 static int nand_dump(nand_info_t *nand, ulong off, int only_oob, int repeat)
43 u_char *datbuf, *oobbuf, *p;
47 off = last + nand->writesize;
51 datbuf = memalign(ARCH_DMA_MINALIGN, nand->writesize);
52 oobbuf = memalign(ARCH_DMA_MINALIGN, nand->oobsize);
53 if (!datbuf || !oobbuf) {
54 puts("No memory for page buffer\n");
57 off &= ~(nand->writesize - 1);
58 loff_t addr = (loff_t) off;
59 struct mtd_oob_ops ops;
60 memset(&ops, 0, sizeof(ops));
63 ops.len = nand->writesize;
64 ops.ooblen = nand->oobsize;
65 ops.mode = MTD_OOB_RAW;
66 i = nand->read_oob(nand, addr, &ops);
68 printf("Error (%d) reading page %08lx\n", i, off);
73 printf("Page %08lx dump:\n", off);
74 i = nand->writesize >> 4;
79 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
80 " %02x %02x %02x %02x %02x %02x %02x %02x\n",
81 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
82 p[8], p[9], p[10], p[11], p[12], p[13], p[14],
87 i = nand->oobsize >> 3;
90 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
91 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
100 /* ------------------------------------------------------------------------- */
102 static int set_dev(int dev)
104 if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE ||
105 !nand_info[dev].name) {
106 puts("No such device\n");
110 if (nand_curr_device == dev)
113 printf("Device %d: %s", dev, nand_info[dev].name);
114 puts("... is now current device\n");
115 nand_curr_device = dev;
117 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE
118 board_nand_select_device(nand_info[dev].priv, dev);
124 static inline int str2off(const char *p, loff_t *num)
128 *num = simple_strtoull(p, &endptr, 16);
129 return *p != '\0' && *endptr == '\0';
132 static inline int str2long(const char *p, ulong *num)
136 *num = simple_strtoul(p, &endptr, 16);
137 return *p != '\0' && *endptr == '\0';
140 static int get_part(const char *partname, int *idx, loff_t *off, loff_t *size)
142 #ifdef CONFIG_CMD_MTDPARTS
143 struct mtd_device *dev;
144 struct part_info *part;
148 ret = mtdparts_init();
152 ret = find_dev_and_part(partname, &dev, &pnum, &part);
156 if (dev->id->type != MTD_DEV_TYPE_NAND) {
157 puts("not a NAND device\n");
171 puts("offset is not a number\n");
176 static int arg_off(const char *arg, int *idx, loff_t *off, loff_t *maxsize)
178 if (!str2off(arg, off))
179 return get_part(arg, idx, off, maxsize);
181 if (*off >= nand_info[*idx].size) {
182 puts("Offset exceeds device limit\n");
186 *maxsize = nand_info[*idx].size - *off;
190 static int arg_off_size(int argc, char *const argv[], int *idx,
191 loff_t *off, loff_t *size)
198 *size = nand_info[*idx].size;
202 ret = arg_off(argv[0], idx, off, &maxsize);
211 if (!str2off(argv[1], size)) {
212 printf("'%s' is not a number\n", argv[1]);
216 if (*size > maxsize) {
217 puts("Size exceeds partition or device limit\n");
222 printf("device %d ", *idx);
223 if (*size == nand_info[*idx].size)
224 puts("whole chip\n");
226 printf("offset 0x%llx, size 0x%llx\n",
227 (unsigned long long)*off, (unsigned long long)*size);
231 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
232 static void print_status(ulong start, ulong end, ulong erasesize, int status)
235 * Micron NAND flash (e.g. MT29F4G08ABADAH4) BLOCK LOCK READ STATUS is
236 * not the same as others. Instead of bit 1 being lock, it is
237 * #lock_tight. To make the driver support either format, ignore bit 1
238 * and use only bit 0 and bit 2.
240 printf("%08lx - %08lx: %08lx blocks %s%s%s\n",
243 (end - start) / erasesize,
244 ((status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
245 (!(status & NAND_LOCK_STATUS_UNLOCK) ? "LOCK " : ""),
246 ((status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
249 static void do_nand_status(nand_info_t *nand)
251 ulong block_start = 0;
253 int last_status = -1;
255 struct nand_chip *nand_chip = nand->priv;
256 /* check the WP bit */
257 nand_chip->cmdfunc(nand, NAND_CMD_STATUS, -1, -1);
258 printf("device is %swrite protected\n",
259 (nand_chip->read_byte(nand) & 0x80 ?
262 for (off = 0; off < nand->size; off += nand->erasesize) {
263 int s = nand_get_lock_status(nand, off);
265 /* print message only if status has changed */
266 if (s != last_status && off != 0) {
267 print_status(block_start, off, nand->erasesize,
273 /* Print the last block info */
274 print_status(block_start, off, nand->erasesize, last_status);
278 #ifdef CONFIG_ENV_OFFSET_OOB
279 unsigned long nand_env_oob_offset;
281 int do_nand_env_oob(cmd_tbl_t *cmdtp, int argc, char *const argv[])
284 uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)];
285 nand_info_t *nand = &nand_info[0];
288 if (CONFIG_SYS_MAX_NAND_DEVICE == 0 || !nand->name) {
289 puts("no devices available\n");
295 if (!strcmp(cmd, "get")) {
296 ret = get_nand_env_oob(nand, &nand_env_oob_offset);
300 printf("0x%08lx\n", nand_env_oob_offset);
301 } else if (!strcmp(cmd, "set")) {
304 struct mtd_oob_ops ops;
310 if (arg_off(argv[2], &idx, &addr, &maxsize)) {
311 puts("Offset or partition name expected\n");
316 puts("Partition not on first NAND device\n");
320 if (nand->oobavail < ENV_OFFSET_SIZE) {
321 printf("Insufficient available OOB bytes:\n"
322 "%d OOB bytes available but %d required for "
324 nand->oobavail, ENV_OFFSET_SIZE);
328 if ((addr & (nand->erasesize - 1)) != 0) {
329 printf("Environment offset must be block-aligned\n");
334 ops.mode = MTD_OOB_AUTO;
336 ops.ooblen = ENV_OFFSET_SIZE;
337 ops.oobbuf = (void *) oob_buf;
339 oob_buf[0] = ENV_OOB_MARKER;
340 oob_buf[1] = addr / nand->erasesize;
342 ret = nand->write_oob(nand, ENV_OFFSET_SIZE, &ops);
344 printf("Error writing OOB block 0\n");
348 ret = get_nand_env_oob(nand, &nand_env_oob_offset);
350 printf("Error reading env offset in OOB\n");
354 if (addr != nand_env_oob_offset) {
355 printf("Verification of env offset in OOB failed: "
356 "0x%08llx expected but got 0x%08lx\n",
357 (unsigned long long)addr, nand_env_oob_offset);
367 return CMD_RET_USAGE;
372 static void nand_print_and_set_info(int idx)
374 nand_info_t *nand = &nand_info[idx];
375 struct nand_chip *chip = nand->priv;
378 printf("Device %d: ", idx);
379 if (chip->numchips > 1)
380 printf("%dx ", chip->numchips);
381 printf("%s, sector size %u KiB\n",
382 nand->name, nand->erasesize >> 10);
383 printf(" Page size %8d b\n", nand->writesize);
384 printf(" OOB size %8d b\n", nand->oobsize);
385 printf(" Erase size %8d b\n", nand->erasesize);
387 /* Set geometry info */
388 sprintf(buf, "%x", nand->writesize);
389 setenv("nand_writesize", buf);
391 sprintf(buf, "%x", nand->oobsize);
392 setenv("nand_oobsize", buf);
394 sprintf(buf, "%x", nand->erasesize);
395 setenv("nand_erasesize", buf);
398 static int raw_access(nand_info_t *nand, ulong addr, loff_t off, ulong count,
405 mtd_oob_ops_t ops = {
406 .datbuf = (u8 *)addr,
407 .oobbuf = ((u8 *)addr) + nand->writesize,
408 .len = nand->writesize,
409 .ooblen = nand->oobsize,
414 ret = nand->read_oob(nand, off, &ops);
416 ret = nand->write_oob(nand, off, &ops);
419 printf("%s: error at offset %llx, ret %d\n",
420 __func__, (long long)off, ret);
424 addr += nand->writesize + nand->oobsize;
425 off += nand->writesize;
431 static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
438 #ifdef CONFIG_SYS_NAND_QUIET
439 int quiet = CONFIG_SYS_NAND_QUIET;
443 const char *quiet_str = getenv("quiet");
444 int dev = nand_curr_device;
445 int repeat = flag & CMD_FLAG_REPEAT;
447 /* at least two arguments please */
452 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
456 /* Only "dump" is repeatable. */
457 if (repeat && strcmp(cmd, "dump"))
460 if (strcmp(cmd, "info") == 0) {
463 for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
464 if (nand_info[i].name)
465 nand_print_and_set_info(i);
470 if (strcmp(cmd, "device") == 0) {
473 if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE)
474 puts("no devices available\n");
476 nand_print_and_set_info(dev);
480 dev = (int)simple_strtoul(argv[2], NULL, 10);
486 #ifdef CONFIG_ENV_OFFSET_OOB
487 /* this command operates only on the first nand device */
488 if (strcmp(cmd, "env.oob") == 0)
489 return do_nand_env_oob(cmdtp, argc - 1, argv + 1);
492 /* The following commands operate on the current device, unless
493 * overridden by a partition specifier. Note that if somehow the
494 * current device is invalid, it will have to be changed to a valid
495 * one before these commands can run, even if a partition specifier
496 * for another device is to be used.
498 if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE ||
499 !nand_info[dev].name) {
500 puts("\nno devices available\n");
503 nand = &nand_info[dev];
505 if (strcmp(cmd, "bad") == 0) {
506 printf("\nDevice %d bad blocks:\n", dev);
507 for (off = 0; off < nand->size; off += nand->erasesize)
508 if (nand_block_isbad(nand, off))
509 printf(" %08llx\n", (unsigned long long)off);
516 * nand erase [clean] [off size]
518 if (strncmp(cmd, "erase", 5) == 0 || strncmp(cmd, "scrub", 5) == 0) {
519 nand_erase_options_t opts;
520 /* "clean" at index 2 means request to write cleanmarker */
521 int clean = argc > 2 && !strcmp("clean", argv[2]);
522 int scrub_yes = argc > 2 && !strcmp("-y", argv[2]);
523 int o = (clean || scrub_yes) ? 3 : 2;
524 int scrub = !strncmp(cmd, "scrub", 5);
527 const char *scrub_warn =
529 "scrub option will erase all factory set bad blocks!\n"
531 "There is no reliable way to recover them.\n"
533 "Use this command only for testing purposes if you\n"
535 "are sure of what you are doing!\n"
536 "\nReally scrub this NAND flash? <y/N>\n";
539 if (!strcmp(&cmd[5], ".spread")) {
541 } else if (!strcmp(&cmd[5], ".part")) {
543 } else if (!strcmp(&cmd[5], ".chip")) {
551 * Don't allow missing arguments to cause full chip/partition
552 * erases -- easy to do accidentally, e.g. with a misspelled
555 if (argc != o + args)
558 printf("\nNAND %s: ", cmd);
559 /* skip first two or three arguments, look for offset and size */
560 if (arg_off_size(argc - o, argv + o, &dev, &off, &size) != 0)
563 nand = &nand_info[dev];
565 memset(&opts, 0, sizeof(opts));
570 opts.spread = spread;
578 else if (getc() == 'y') {
583 puts("scrub aborted\n");
587 puts("scrub aborted\n");
591 ret = nand_erase_opts(nand, &opts);
592 printf("%s\n", ret ? "ERROR" : "OK");
594 return ret == 0 ? 0 : 1;
597 if (strncmp(cmd, "dump", 4) == 0) {
601 off = (int)simple_strtoul(argv[2], NULL, 16);
602 ret = nand_dump(nand, off, !strcmp(&cmd[4], ".oob"), repeat);
604 return ret == 0 ? 1 : 0;
607 if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
616 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
618 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
619 printf("\nNAND %s: ", read ? "read" : "write");
621 nand = &nand_info[dev];
623 s = strchr(cmd, '.');
625 if (s && !strcmp(s, ".raw")) {
628 if (arg_off(argv[3], &dev, &off, &size))
631 if (argc > 4 && !str2long(argv[4], &pagecount)) {
632 printf("'%s' is not a number\n", argv[4]);
636 if (pagecount * nand->writesize > size) {
637 puts("Size exceeds partition or device limit\n");
641 rwsize = pagecount * (nand->writesize + nand->oobsize);
643 if (arg_off_size(argc - 3, argv + 3, &dev,
650 if (!s || !strcmp(s, ".jffs2") ||
651 !strcmp(s, ".e") || !strcmp(s, ".i")) {
653 ret = nand_read_skip_bad(nand, off, &rwsize,
656 ret = nand_write_skip_bad(nand, off, &rwsize,
658 #ifdef CONFIG_CMD_NAND_TRIMFFS
659 } else if (!strcmp(s, ".trimffs")) {
661 printf("Unknown nand command suffix '%s'\n", s);
664 ret = nand_write_skip_bad(nand, off, &rwsize,
668 #ifdef CONFIG_CMD_NAND_YAFFS
669 } else if (!strcmp(s, ".yaffs")) {
671 printf("Unknown nand command suffix '%s'.\n", s);
674 ret = nand_write_skip_bad(nand, off, &rwsize,
678 } else if (!strcmp(s, ".oob")) {
679 /* out-of-band data */
680 mtd_oob_ops_t ops = {
681 .oobbuf = (u8 *)addr,
687 ret = nand->read_oob(nand, off, &ops);
689 ret = nand->write_oob(nand, off, &ops);
691 ret = raw_access(nand, addr, off, pagecount, read);
693 printf("Unknown nand command suffix '%s'.\n", s);
697 printf(" %zu bytes %s: %s\n", rwsize,
698 read ? "read" : "written", ret ? "ERROR" : "OK");
700 return ret == 0 ? 0 : 1;
703 if (strcmp(cmd, "markbad") == 0) {
711 addr = simple_strtoul(*argv, NULL, 16);
713 if (nand->block_markbad(nand, addr)) {
714 printf("block 0x%08lx NOT marked "
715 "as bad! ERROR %d\n",
719 printf("block 0x%08lx successfully "
729 if (strcmp(cmd, "biterr") == 0) {
734 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
735 if (strcmp(cmd, "lock") == 0) {
739 if (!strcmp("tight", argv[2]))
741 if (!strcmp("status", argv[2]))
745 do_nand_status(nand);
747 if (!nand_lock(nand, tight)) {
748 puts("NAND flash successfully locked\n");
750 puts("Error locking NAND flash\n");
757 if (strncmp(cmd, "unlock", 5) == 0) {
760 s = strchr(cmd, '.');
762 if (s && !strcmp(s, ".allexcept"))
765 if (arg_off_size(argc - 2, argv + 2, &dev, &off, &size) < 0)
768 if (!nand_unlock(&nand_info[dev], off, size, allexcept)) {
769 puts("NAND flash successfully unlocked\n");
771 puts("Error unlocking NAND flash, "
772 "write and erase will probably fail\n");
780 return CMD_RET_USAGE;
783 #ifdef CONFIG_SYS_LONGHELP
784 static char nand_help_text[] =
785 "info - show available NAND devices\n"
786 "nand device [dev] - show or set current device\n"
787 "nand read - addr off|partition size\n"
788 "nand write - addr off|partition size\n"
789 " read/write 'size' bytes starting at offset 'off'\n"
790 " to/from memory address 'addr', skipping bad blocks.\n"
791 "nand read.raw - addr off|partition [count]\n"
792 "nand write.raw - addr off|partition [count]\n"
793 " Use read.raw/write.raw to avoid ECC and access the flash as-is.\n"
794 #ifdef CONFIG_CMD_NAND_TRIMFFS
795 "nand write.trimffs - addr off|partition size\n"
796 " write 'size' bytes starting at offset 'off' from memory address\n"
797 " 'addr', skipping bad blocks and dropping any pages at the end\n"
798 " of eraseblocks that contain only 0xFF\n"
800 #ifdef CONFIG_CMD_NAND_YAFFS
801 "nand write.yaffs - addr off|partition size\n"
802 " write 'size' bytes starting at offset 'off' with yaffs format\n"
803 " from memory address 'addr', skipping bad blocks.\n"
805 "nand erase[.spread] [clean] off size - erase 'size' bytes "
806 "from offset 'off'\n"
807 " With '.spread', erase enough for given file size, otherwise,\n"
808 " 'size' includes skipped bad blocks.\n"
809 "nand erase.part [clean] partition - erase entire mtd partition'\n"
810 "nand erase.chip [clean] - erase entire chip'\n"
811 "nand bad - show bad blocks\n"
812 "nand dump[.oob] off - dump page\n"
813 "nand scrub [-y] off size | scrub.part partition | scrub.chip\n"
814 " really clean NAND erasing bad blocks (UNSAFE)\n"
815 "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n"
816 "nand biterr off - make a bit error at offset (UNSAFE)"
817 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
819 "nand lock [tight] [status]\n"
820 " bring nand to lock state or display locked pages\n"
821 "nand unlock[.allexcept] [offset] [size] - unlock section"
823 #ifdef CONFIG_ENV_OFFSET_OOB
825 "nand env.oob - environment offset in OOB of block 0 of"
827 "nand env.oob set off|partition - set enviromnent offset\n"
828 "nand env.oob get - get environment offset"
834 nand, CONFIG_SYS_MAXARGS, 1, do_nand,
835 "NAND sub-system", nand_help_text
838 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
839 ulong offset, ulong addr, char *cmd)
845 #if defined(CONFIG_FIT)
846 const void *fit_hdr = NULL;
849 s = strchr(cmd, '.');
851 (strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) {
852 printf("Unknown nand load suffix '%s'\n", s);
853 bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX);
857 printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
859 cnt = nand->writesize;
860 r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr);
862 puts("** Read error\n");
863 bootstage_error(BOOTSTAGE_ID_NAND_HDR_READ);
866 bootstage_mark(BOOTSTAGE_ID_NAND_HDR_READ);
868 switch (genimg_get_format ((void *)addr)) {
869 case IMAGE_FORMAT_LEGACY:
870 hdr = (image_header_t *)addr;
872 bootstage_mark(BOOTSTAGE_ID_NAND_TYPE);
873 image_print_contents (hdr);
875 cnt = image_get_image_size (hdr);
877 #if defined(CONFIG_FIT)
878 case IMAGE_FORMAT_FIT:
879 fit_hdr = (const void *)addr;
880 puts ("Fit image detected...\n");
882 cnt = fit_get_size (fit_hdr);
886 bootstage_error(BOOTSTAGE_ID_NAND_TYPE);
887 puts ("** Unknown image type\n");
890 bootstage_mark(BOOTSTAGE_ID_NAND_TYPE);
892 r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr);
894 puts("** Read error\n");
895 bootstage_error(BOOTSTAGE_ID_NAND_READ);
898 bootstage_mark(BOOTSTAGE_ID_NAND_READ);
900 #if defined(CONFIG_FIT)
901 /* This cannot be done earlier, we need complete FIT image in RAM first */
902 if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
903 if (!fit_check_format (fit_hdr)) {
904 bootstage_error(BOOTSTAGE_ID_NAND_FIT_READ);
905 puts ("** Bad FIT image format\n");
908 bootstage_mark(BOOTSTAGE_ID_NAND_FIT_READ_OK);
909 fit_print_contents (fit_hdr);
913 /* Loading ok, update default load address */
917 return bootm_maybe_autostart(cmdtp, cmd);
920 static int do_nandboot(cmd_tbl_t *cmdtp, int flag, int argc,
923 char *boot_device = NULL;
925 ulong addr, offset = 0;
926 #if defined(CONFIG_CMD_MTDPARTS)
927 struct mtd_device *dev;
928 struct part_info *part;
932 char *p = (argc == 2) ? argv[1] : argv[2];
933 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
934 (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
935 if (dev->id->type != MTD_DEV_TYPE_NAND) {
936 puts("Not a NAND device\n");
942 addr = simple_strtoul(argv[1], NULL, 16);
944 addr = CONFIG_SYS_LOAD_ADDR;
945 return nand_load_image(cmdtp, &nand_info[dev->id->num],
946 part->offset, addr, argv[0]);
951 bootstage_mark(BOOTSTAGE_ID_NAND_PART);
954 addr = CONFIG_SYS_LOAD_ADDR;
955 boot_device = getenv("bootdevice");
958 addr = simple_strtoul(argv[1], NULL, 16);
959 boot_device = getenv("bootdevice");
962 addr = simple_strtoul(argv[1], NULL, 16);
963 boot_device = argv[2];
966 addr = simple_strtoul(argv[1], NULL, 16);
967 boot_device = argv[2];
968 offset = simple_strtoul(argv[3], NULL, 16);
971 #if defined(CONFIG_CMD_MTDPARTS)
974 bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX);
975 return CMD_RET_USAGE;
977 bootstage_mark(BOOTSTAGE_ID_NAND_SUFFIX);
980 puts("\n** No boot device **\n");
981 bootstage_error(BOOTSTAGE_ID_NAND_BOOT_DEVICE);
984 bootstage_mark(BOOTSTAGE_ID_NAND_BOOT_DEVICE);
986 idx = simple_strtoul(boot_device, NULL, 16);
988 if (idx < 0 || idx >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[idx].name) {
989 printf("\n** Device %d not available\n", idx);
990 bootstage_error(BOOTSTAGE_ID_NAND_AVAILABLE);
993 bootstage_mark(BOOTSTAGE_ID_NAND_AVAILABLE);
995 return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
998 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
999 "boot from NAND device",
1000 "[partition] | [[[loadAddr] dev] offset]"