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 CONFIG_NAND_LEGACY
21 #include <linux/mtd/mtd.h>
23 #if defined(CONFIG_CMD_NAND)
28 #include <asm/byteorder.h>
29 #include <jffs2/jffs2.h>
32 #if defined(CONFIG_CMD_MTDPARTS)
34 /* parition handling routines */
35 int mtdparts_init(void);
36 int id_parse(const char *id
, const char **ret_id
, u8
*dev_type
, u8
*dev_num
);
37 int find_dev_and_part(const char *id
, struct mtd_device
**dev
,
38 u8
*part_num
, struct part_info
**part
);
41 static int nand_dump(nand_info_t
*nand
, ulong off
, int only_oob
)
44 u_char
*datbuf
, *oobbuf
, *p
;
46 datbuf
= malloc(nand
->writesize
+ nand
->oobsize
);
47 oobbuf
= malloc(nand
->oobsize
);
48 if (!datbuf
|| !oobbuf
) {
49 puts("No memory for page buffer\n");
52 off
&= ~(nand
->writesize
- 1);
53 loff_t addr
= (loff_t
) off
;
54 struct mtd_oob_ops ops
;
55 memset(&ops
, 0, sizeof(ops
));
57 ops
.oobbuf
= oobbuf
; /* must exist, but oob data will be appended to ops.datbuf */
58 ops
.len
= nand
->writesize
;
59 ops
.ooblen
= nand
->oobsize
;
60 ops
.mode
= MTD_OOB_RAW
;
61 i
= nand
->read_oob(nand
, addr
, &ops
);
63 printf("Error (%d) reading page %08lx\n", i
, off
);
68 printf("Page %08lx dump:\n", off
);
69 i
= nand
->writesize
>> 4;
74 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
75 " %02x %02x %02x %02x %02x %02x %02x %02x\n",
76 p
[0], p
[1], p
[2], p
[3], p
[4], p
[5], p
[6], p
[7],
77 p
[8], p
[9], p
[10], p
[11], p
[12], p
[13], p
[14],
82 i
= nand
->oobsize
>> 3;
84 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
85 p
[0], p
[1], p
[2], p
[3], p
[4], p
[5], p
[6], p
[7]);
94 /* ------------------------------------------------------------------------- */
96 static inline int str2long(char *p
, ulong
*num
)
100 *num
= simple_strtoul(p
, &endptr
, 16);
101 return (*p
!= '\0' && *endptr
== '\0') ? 1 : 0;
105 arg_off_size(int argc
, char *argv
[], nand_info_t
*nand
, ulong
*off
, size_t *size
)
107 int idx
= nand_curr_device
;
108 #if defined(CONFIG_CMD_MTDPARTS)
109 struct mtd_device
*dev
;
110 struct part_info
*part
;
113 if (argc
>= 1 && !(str2long(argv
[0], off
))) {
114 if ((mtdparts_init() == 0) &&
115 (find_dev_and_part(argv
[0], &dev
, &pnum
, &part
) == 0)) {
116 if (dev
->id
->type
!= MTD_DEV_TYPE_NAND
) {
117 puts("not a NAND device\n");
122 if (!(str2long(argv
[1], (ulong
*)size
))) {
123 printf("'%s' is not a number\n", argv
[1]);
126 if (*size
> part
->size
)
132 *nand
= nand_info
[idx
];
139 if (!(str2long(argv
[0], off
))) {
140 printf("'%s' is not a number\n", argv
[0]);
148 if (!(str2long(argv
[1], (ulong
*)size
))) {
149 printf("'%s' is not a number\n", argv
[1]);
153 *size
= nand
->size
- *off
;
156 #if defined(CONFIG_CMD_MTDPARTS)
159 printf("device %d ", idx
);
160 if (*size
== nand
->size
)
161 puts("whole chip\n");
163 printf("offset 0x%lx, size 0x%zx\n", *off
, *size
);
167 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
168 static void print_status(ulong start
, ulong end
, ulong erasesize
, int status
)
170 printf("%08lx - %08lx: %08lx blocks %s%s%s\n",
173 (end
- start
) / erasesize
,
174 ((status
& NAND_LOCK_STATUS_TIGHT
) ? "TIGHT " : ""),
175 ((status
& NAND_LOCK_STATUS_LOCK
) ? "LOCK " : ""),
176 ((status
& NAND_LOCK_STATUS_UNLOCK
) ? "UNLOCK " : ""));
179 static void do_nand_status(nand_info_t
*nand
)
181 ulong block_start
= 0;
183 int last_status
= -1;
185 struct nand_chip
*nand_chip
= nand
->priv
;
186 /* check the WP bit */
187 nand_chip
->cmdfunc(nand
, NAND_CMD_STATUS
, -1, -1);
188 printf("device is %swrite protected\n",
189 (nand_chip
->read_byte(nand
) & 0x80 ?
192 for (off
= 0; off
< nand
->size
; off
+= nand
->erasesize
) {
193 int s
= nand_get_lock_status(nand
, off
);
195 /* print message only if status has changed */
196 if (s
!= last_status
&& off
!= 0) {
197 print_status(block_start
, off
, nand
->erasesize
,
203 /* Print the last block info */
204 print_status(block_start
, off
, nand
->erasesize
, last_status
);
208 static void nand_print_info(int idx
)
210 nand_info_t
*nand
= &nand_info
[idx
];
211 struct nand_chip
*chip
= nand
->priv
;
212 printf("Device %d: ", idx
);
213 if (chip
->numchips
> 1)
214 printf("%dx ", chip
->numchips
);
215 printf("%s, sector size %u KiB\n",
216 nand
->name
, nand
->erasesize
>> 10);
219 int do_nand(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
226 #ifdef CONFIG_SYS_NAND_QUIET
227 int quiet
= CONFIG_SYS_NAND_QUIET
;
231 const char *quiet_str
= getenv("quiet");
233 /* at least two arguments please */
238 quiet
= simple_strtoul(quiet_str
, NULL
, 0) != 0;
242 if (strcmp(cmd
, "info") == 0) {
245 for (i
= 0; i
< CONFIG_SYS_MAX_NAND_DEVICE
; i
++) {
246 if (nand_info
[i
].name
)
252 if (strcmp(cmd
, "device") == 0) {
256 if ((nand_curr_device
< 0) ||
257 (nand_curr_device
>= CONFIG_SYS_MAX_NAND_DEVICE
))
258 puts("no devices available\n");
260 nand_print_info(nand_curr_device
);
263 dev
= (int)simple_strtoul(argv
[2], NULL
, 10);
264 if (dev
< 0 || dev
>= CONFIG_SYS_MAX_NAND_DEVICE
|| !nand_info
[dev
].name
) {
265 puts("No such device\n");
268 printf("Device %d: %s", dev
, nand_info
[dev
].name
);
269 puts("... is now current device\n");
270 nand_curr_device
= dev
;
272 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE
274 * Select the chip in the board/cpu specific driver
276 board_nand_select_device(nand_info
[dev
].priv
, dev
);
282 if (strcmp(cmd
, "bad") != 0 && strcmp(cmd
, "erase") != 0 &&
283 strncmp(cmd
, "dump", 4) != 0 &&
284 strncmp(cmd
, "read", 4) != 0 && strncmp(cmd
, "write", 5) != 0 &&
285 strcmp(cmd
, "scrub") != 0 && strcmp(cmd
, "markbad") != 0 &&
286 strcmp(cmd
, "biterr") != 0 &&
287 strcmp(cmd
, "lock") != 0 && strcmp(cmd
, "unlock") != 0 )
290 /* the following commands operate on the current device */
291 if (nand_curr_device
< 0 || nand_curr_device
>= CONFIG_SYS_MAX_NAND_DEVICE
||
292 !nand_info
[nand_curr_device
].name
) {
293 puts("\nno devices available\n");
296 nand
= &nand_info
[nand_curr_device
];
298 if (strcmp(cmd
, "bad") == 0) {
299 printf("\nDevice %d bad blocks:\n", nand_curr_device
);
300 for (off
= 0; off
< nand
->size
; off
+= nand
->erasesize
)
301 if (nand_block_isbad(nand
, off
))
302 printf(" %08lx\n", off
);
309 * nand erase [clean] [off size]
311 if (strcmp(cmd
, "erase") == 0 || strcmp(cmd
, "scrub") == 0) {
312 nand_erase_options_t opts
;
313 /* "clean" at index 2 means request to write cleanmarker */
314 int clean
= argc
> 2 && !strcmp("clean", argv
[2]);
315 int o
= clean
? 3 : 2;
316 int scrub
= !strcmp(cmd
, "scrub");
318 printf("\nNAND %s: ", scrub
? "scrub" : "erase");
319 /* skip first two or three arguments, look for offset and size */
320 if (arg_off_size(argc
- o
, argv
+ o
, nand
, &off
, &size
) != 0)
323 memset(&opts
, 0, sizeof(opts
));
331 "scrub option will erase all factory set "
334 "There is no reliable way to recover them.\n"
336 "Use this command only for testing purposes "
339 "are sure of what you are doing!\n"
340 "\nReally scrub this NAND flash? <y/N>\n");
342 if (getc() == 'y' && getc() == '\r') {
345 puts("scrub aborted\n");
349 ret
= nand_erase_opts(nand
, &opts
);
350 printf("%s\n", ret
? "ERROR" : "OK");
352 return ret
== 0 ? 0 : 1;
355 if (strncmp(cmd
, "dump", 4) == 0) {
359 s
= strchr(cmd
, '.');
360 off
= (int)simple_strtoul(argv
[2], NULL
, 16);
362 if (s
!= NULL
&& strcmp(s
, ".oob") == 0)
363 ret
= nand_dump(nand
, off
, 1);
365 ret
= nand_dump(nand
, off
, 0);
367 return ret
== 0 ? 1 : 0;
371 if (strncmp(cmd
, "read", 4) == 0 || strncmp(cmd
, "write", 5) == 0) {
377 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
379 read
= strncmp(cmd
, "read", 4) == 0; /* 1 = read, 0 = write */
380 printf("\nNAND %s: ", read
? "read" : "write");
381 if (arg_off_size(argc
- 3, argv
+ 3, nand
, &off
, &size
) != 0)
384 s
= strchr(cmd
, '.');
385 if (!s
|| !strcmp(s
, ".jffs2") ||
386 !strcmp(s
, ".e") || !strcmp(s
, ".i")) {
388 ret
= nand_read_skip_bad(nand
, off
, &size
,
391 ret
= nand_write_skip_bad(nand
, off
, &size
,
393 } else if (!strcmp(s
, ".oob")) {
394 /* out-of-band data */
395 mtd_oob_ops_t ops
= {
396 .oobbuf
= (u8
*)addr
,
402 ret
= nand
->read_oob(nand
, off
, &ops
);
404 ret
= nand
->write_oob(nand
, off
, &ops
);
406 printf("Unknown nand command suffix '%s'.\n", s
);
410 printf(" %zu bytes %s: %s\n", size
,
411 read
? "read" : "written", ret
? "ERROR" : "OK");
413 return ret
== 0 ? 0 : 1;
416 if (strcmp(cmd
, "markbad") == 0) {
417 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
419 int ret
= nand
->block_markbad(nand
, addr
);
421 printf("block 0x%08lx successfully marked as bad\n",
425 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
431 if (strcmp(cmd
, "biterr") == 0) {
436 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
437 if (strcmp(cmd
, "lock") == 0) {
441 if (!strcmp("tight", argv
[2]))
443 if (!strcmp("status", argv
[2]))
447 do_nand_status(nand
);
449 if (!nand_lock(nand
, tight
)) {
450 puts("NAND flash successfully locked\n");
452 puts("Error locking NAND flash\n");
459 if (strcmp(cmd
, "unlock") == 0) {
460 if (arg_off_size(argc
- 2, argv
+ 2, nand
, &off
, &size
) < 0)
463 if (!nand_unlock(nand
, off
, size
)) {
464 puts("NAND flash successfully unlocked\n");
466 puts("Error unlocking NAND flash, "
467 "write and erase will probably fail\n");
479 U_BOOT_CMD(nand
, CONFIG_SYS_MAXARGS
, 1, do_nand
,
481 "info - show available NAND devices\n"
482 "nand device [dev] - show or set current device\n"
483 "nand read - addr off|partition size\n"
484 "nand write - addr off|partition size\n"
485 " read/write 'size' bytes starting at offset 'off'\n"
486 " to/from memory address 'addr', skipping bad blocks.\n"
487 "nand erase [clean] [off size] - erase 'size' bytes from\n"
488 " offset 'off' (entire device if not specified)\n"
489 "nand bad - show bad blocks\n"
490 "nand dump[.oob] off - dump page\n"
491 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
492 "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n"
493 "nand biterr off - make a bit error at offset (UNSAFE)"
494 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
496 "nand lock [tight] [status]\n"
497 " bring nand to lock state or display locked pages\n"
498 "nand unlock [offset] [size] - unlock section"
502 static int nand_load_image(cmd_tbl_t
*cmdtp
, nand_info_t
*nand
,
503 ulong offset
, ulong addr
, char *cmd
)
509 #if defined(CONFIG_FIT)
510 const void *fit_hdr
= NULL
;
513 s
= strchr(cmd
, '.');
515 (strcmp(s
, ".jffs2") && strcmp(s
, ".e") && strcmp(s
, ".i"))) {
516 printf("Unknown nand load suffix '%s'\n", s
);
517 show_boot_progress(-53);
521 printf("\nLoading from %s, offset 0x%lx\n", nand
->name
, offset
);
523 cnt
= nand
->writesize
;
524 r
= nand_read_skip_bad(nand
, offset
, &cnt
, (u_char
*) addr
);
526 puts("** Read error\n");
527 show_boot_progress (-56);
530 show_boot_progress (56);
532 switch (genimg_get_format ((void *)addr
)) {
533 case IMAGE_FORMAT_LEGACY
:
534 hdr
= (image_header_t
*)addr
;
536 show_boot_progress (57);
537 image_print_contents (hdr
);
539 cnt
= image_get_image_size (hdr
);
541 #if defined(CONFIG_FIT)
542 case IMAGE_FORMAT_FIT
:
543 fit_hdr
= (const void *)addr
;
544 puts ("Fit image detected...\n");
546 cnt
= fit_get_size (fit_hdr
);
550 show_boot_progress (-57);
551 puts ("** Unknown image type\n");
554 show_boot_progress (57);
556 r
= nand_read_skip_bad(nand
, offset
, &cnt
, (u_char
*) addr
);
558 puts("** Read error\n");
559 show_boot_progress (-58);
562 show_boot_progress (58);
564 #if defined(CONFIG_FIT)
565 /* This cannot be done earlier, we need complete FIT image in RAM first */
566 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
) {
567 if (!fit_check_format (fit_hdr
)) {
568 show_boot_progress (-150);
569 puts ("** Bad FIT image format\n");
572 show_boot_progress (151);
573 fit_print_contents (fit_hdr
);
577 /* Loading ok, update default load address */
581 /* Check if we should attempt an auto-start */
582 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
, "yes") == 0)) {
584 extern int do_bootm(cmd_tbl_t
*, int, int, char *[]);
587 local_args
[1] = NULL
;
589 printf("Automatic boot of image at addr 0x%08lx ...\n", addr
);
591 do_bootm(cmdtp
, 0, 1, local_args
);
597 int do_nandboot(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
599 char *boot_device
= NULL
;
601 ulong addr
, offset
= 0;
602 #if defined(CONFIG_CMD_MTDPARTS)
603 struct mtd_device
*dev
;
604 struct part_info
*part
;
608 char *p
= (argc
== 2) ? argv
[1] : argv
[2];
609 if (!(str2long(p
, &addr
)) && (mtdparts_init() == 0) &&
610 (find_dev_and_part(p
, &dev
, &pnum
, &part
) == 0)) {
611 if (dev
->id
->type
!= MTD_DEV_TYPE_NAND
) {
612 puts("Not a NAND device\n");
618 addr
= simple_strtoul(argv
[1], NULL
, 16);
620 addr
= CONFIG_SYS_LOAD_ADDR
;
621 return nand_load_image(cmdtp
, &nand_info
[dev
->id
->num
],
622 part
->offset
, addr
, argv
[0]);
627 show_boot_progress(52);
630 addr
= CONFIG_SYS_LOAD_ADDR
;
631 boot_device
= getenv("bootdevice");
634 addr
= simple_strtoul(argv
[1], NULL
, 16);
635 boot_device
= getenv("bootdevice");
638 addr
= simple_strtoul(argv
[1], NULL
, 16);
639 boot_device
= argv
[2];
642 addr
= simple_strtoul(argv
[1], NULL
, 16);
643 boot_device
= argv
[2];
644 offset
= simple_strtoul(argv
[3], NULL
, 16);
647 #if defined(CONFIG_CMD_MTDPARTS)
651 show_boot_progress(-53);
655 show_boot_progress(53);
657 puts("\n** No boot device **\n");
658 show_boot_progress(-54);
661 show_boot_progress(54);
663 idx
= simple_strtoul(boot_device
, NULL
, 16);
665 if (idx
< 0 || idx
>= CONFIG_SYS_MAX_NAND_DEVICE
|| !nand_info
[idx
].name
) {
666 printf("\n** Device %d not available\n", idx
);
667 show_boot_progress(-55);
670 show_boot_progress(55);
672 return nand_load_image(cmdtp
, &nand_info
[idx
], offset
, addr
, argv
[0]);
675 U_BOOT_CMD(nboot
, 4, 1, do_nandboot
,
676 "boot from NAND device",
677 "[partition] | [[[loadAddr] dev] offset]"
681 #else /* CONFIG_NAND_LEGACY */
684 * Legacy NAND support - to be phased out
690 #include <watchdog.h>
692 #ifdef CONFIG_show_boot_progress
693 # include <status_led.h>
694 # define show_boot_progress(arg) show_boot_progress(arg)
696 # define show_boot_progress(arg)
699 #if defined(CONFIG_CMD_NAND)
700 #include <linux/mtd/nand_legacy.h>
702 #include <linux/mtd/nand_ids.h>
703 #include <jffs2/jffs2.h>
706 #ifdef CONFIG_OMAP1510
707 void archflashwp(void *archdata
, int wp
);
710 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
715 /* ****************** WARNING *********************
716 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
717 * erase (or at least attempt to erase) blocks that are marked
718 * bad. This can be very handy if you are _sure_ that the block
719 * is OK, say because you marked a good block bad to test bad
720 * block handling and you are done testing, or if you have
721 * accidentally marked blocks bad.
723 * Erasing factory marked bad blocks is a _bad_ idea. If the
724 * erase succeeds there is no reliable way to find them again,
725 * and attempting to program or erase bad blocks can affect
726 * the data in _other_ (good) blocks.
728 #define ALLOW_ERASE_BAD_DEBUG 0
730 #define CONFIG_MTD_NAND_ECC /* enable ECC */
731 #define CONFIG_MTD_NAND_ECC_JFFS2
733 /* bits for nand_legacy_rw() `cmd'; or together as needed */
734 #define NANDRW_READ 0x01
735 #define NANDRW_WRITE 0x00
736 #define NANDRW_JFFS2 0x02
737 #define NANDRW_JFFS2_SKIP 0x04
740 * Imports from nand_legacy.c
742 extern struct nand_chip nand_dev_desc
[CONFIG_SYS_MAX_NAND_DEVICE
];
743 extern int curr_device
;
744 extern int nand_legacy_erase(struct nand_chip
*nand
, size_t ofs
,
745 size_t len
, int clean
);
746 extern int nand_legacy_rw(struct nand_chip
*nand
, int cmd
, size_t start
,
747 size_t len
, size_t *retlen
, u_char
*buf
);
748 extern void nand_print(struct nand_chip
*nand
);
749 extern void nand_print_bad(struct nand_chip
*nand
);
750 extern int nand_read_oob(struct nand_chip
*nand
, size_t ofs
,
751 size_t len
, size_t *retlen
, u_char
*buf
);
752 extern int nand_write_oob(struct nand_chip
*nand
, size_t ofs
,
753 size_t len
, size_t *retlen
, const u_char
*buf
);
756 int do_nand (cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
766 if (strcmp (argv
[1], "info") == 0) {
771 for (i
= 0; i
< CONFIG_SYS_MAX_NAND_DEVICE
; ++i
) {
772 if (nand_dev_desc
[i
].ChipID
==
774 continue; /* list only known devices */
775 printf ("Device %d: ", i
);
776 nand_print (&nand_dev_desc
[i
]);
780 } else if (strcmp (argv
[1], "device") == 0) {
781 if ((curr_device
< 0)
782 || (curr_device
>= CONFIG_SYS_MAX_NAND_DEVICE
)) {
783 puts ("\nno devices available\n");
786 printf ("\nDevice %d: ", curr_device
);
787 nand_print (&nand_dev_desc
[curr_device
]);
790 } else if (strcmp (argv
[1], "bad") == 0) {
791 if ((curr_device
< 0)
792 || (curr_device
>= CONFIG_SYS_MAX_NAND_DEVICE
)) {
793 puts ("\nno devices available\n");
796 printf ("\nDevice %d bad blocks:\n", curr_device
);
797 nand_print_bad (&nand_dev_desc
[curr_device
]);
804 if (strcmp (argv
[1], "device") == 0) {
805 int dev
= (int) simple_strtoul (argv
[2], NULL
, 10);
807 printf ("\nDevice %d: ", dev
);
808 if (dev
>= CONFIG_SYS_MAX_NAND_DEVICE
) {
809 puts ("unknown device\n");
812 nand_print (&nand_dev_desc
[dev
]);
813 /*nand_print (dev); */
815 if (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
) {
821 puts ("... is now current device\n");
824 } else if (strcmp (argv
[1], "erase") == 0
825 && strcmp (argv
[2], "clean") == 0) {
826 struct nand_chip
*nand
= &nand_dev_desc
[curr_device
];
828 ulong size
= nand
->totlen
;
831 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device
, off
, size
);
833 ret
= nand_legacy_erase (nand
, off
, size
, 1);
835 printf ("%s\n", ret
? "ERROR" : "OK");
843 /* at least 4 args */
845 if (strncmp (argv
[1], "read", 4) == 0 ||
846 strncmp (argv
[1], "write", 5) == 0) {
847 ulong addr
= simple_strtoul (argv
[2], NULL
, 16);
848 off_t off
= simple_strtoul (argv
[3], NULL
, 16);
849 size_t size
= simple_strtoul (argv
[4], NULL
, 16);
850 int cmd
= (strncmp (argv
[1], "read", 4) == 0) ?
851 NANDRW_READ
: NANDRW_WRITE
;
854 char *cmdtail
= strchr (argv
[1], '.');
856 if (cmdtail
&& !strncmp (cmdtail
, ".oob", 2)) {
857 /* read out-of-band data */
858 if (cmd
& NANDRW_READ
) {
859 ret
= nand_read_oob (nand_dev_desc
+ curr_device
,
863 ret
= nand_write_oob (nand_dev_desc
+ curr_device
,
868 } else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2s", 7)) {
869 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
870 if (cmd
& NANDRW_READ
)
871 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
872 } else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2", 2))
873 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
875 /* need ".e" same as ".j" for compatibility with older units */
876 else if (cmdtail
&& !strcmp (cmdtail
, ".e"))
877 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
879 #ifdef CONFIG_SYS_NAND_SKIP_BAD_DOT_I
880 /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
881 /* ".i" for image -> read skips bad block (no 0xff) */
882 else if (cmdtail
&& !strcmp (cmdtail
, ".i")) {
883 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
884 if (cmd
& NANDRW_READ
)
885 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
887 #endif /* CONFIG_SYS_NAND_SKIP_BAD_DOT_I */
893 printf ("\nNAND %s: device %d offset %ld, size %lu ...\n",
894 (cmd
& NANDRW_READ
) ? "read" : "write",
895 curr_device
, off
, (ulong
)size
);
897 ret
= nand_legacy_rw (nand_dev_desc
+ curr_device
,
899 &total
, (u_char
*) addr
);
901 printf (" %d bytes %s: %s\n", total
,
902 (cmd
& NANDRW_READ
) ? "read" : "written",
903 ret
? "ERROR" : "OK");
906 } else if (strcmp (argv
[1], "erase") == 0 &&
907 (argc
== 4 || strcmp ("clean", argv
[2]) == 0)) {
908 int clean
= argc
== 5;
910 simple_strtoul (argv
[2 + clean
], NULL
, 16);
912 simple_strtoul (argv
[3 + clean
], NULL
, 16);
915 printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
916 curr_device
, off
, size
);
918 ret
= nand_legacy_erase (nand_dev_desc
+ curr_device
,
921 printf ("%s\n", ret
? "ERROR" : "OK");
935 "legacy NAND sub-system",
936 "info - show available NAND devices\n"
937 "nand device [dev] - show or set current device\n"
938 "nand read[.jffs2[s]] addr off size\n"
939 "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
940 " at offset `off' to/from memory address `addr'\n"
941 "nand erase [clean] [off size] - erase `size' bytes from\n"
942 " offset `off' (entire device if not specified)\n"
943 "nand bad - show bad blocks\n"
944 "nand read.oob addr off size - read out-of-band data\n"
945 "nand write.oob addr off size - read out-of-band data"
948 int do_nandboot (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
950 char *boot_device
= NULL
;
958 #if defined(CONFIG_FIT)
959 const void *fit_hdr
= NULL
;
962 show_boot_progress (52);
965 addr
= CONFIG_SYS_LOAD_ADDR
;
966 boot_device
= getenv ("bootdevice");
969 addr
= simple_strtoul(argv
[1], NULL
, 16);
970 boot_device
= getenv ("bootdevice");
973 addr
= simple_strtoul(argv
[1], NULL
, 16);
974 boot_device
= argv
[2];
977 addr
= simple_strtoul(argv
[1], NULL
, 16);
978 boot_device
= argv
[2];
979 offset
= simple_strtoul(argv
[3], NULL
, 16);
983 show_boot_progress (-53);
987 show_boot_progress (53);
989 puts ("\n** No boot device **\n");
990 show_boot_progress (-54);
993 show_boot_progress (54);
995 dev
= simple_strtoul(boot_device
, &ep
, 16);
997 if ((dev
>= CONFIG_SYS_MAX_NAND_DEVICE
) ||
998 (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
)) {
999 printf ("\n** Device %d not available\n", dev
);
1000 show_boot_progress (-55);
1003 show_boot_progress (55);
1005 printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1006 dev
, nand_dev_desc
[dev
].name
, nand_dev_desc
[dev
].IO_ADDR
,
1009 if (nand_legacy_rw (nand_dev_desc
+ dev
, NANDRW_READ
, offset
,
1010 SECTORSIZE
, NULL
, (u_char
*)addr
)) {
1011 printf ("** Read error on %d\n", dev
);
1012 show_boot_progress (-56);
1015 show_boot_progress (56);
1017 switch (genimg_get_format ((void *)addr
)) {
1018 case IMAGE_FORMAT_LEGACY
:
1019 hdr
= (image_header_t
*)addr
;
1020 image_print_contents (hdr
);
1022 cnt
= image_get_image_size (hdr
);
1025 #if defined(CONFIG_FIT)
1026 case IMAGE_FORMAT_FIT
:
1027 fit_hdr
= (const void *)addr
;
1028 puts ("Fit image detected...\n");
1030 cnt
= fit_get_size (fit_hdr
);
1034 show_boot_progress (-57);
1035 puts ("** Unknown image type\n");
1038 show_boot_progress (57);
1040 if (nand_legacy_rw (nand_dev_desc
+ dev
, NANDRW_READ
,
1041 offset
+ SECTORSIZE
, cnt
, NULL
,
1042 (u_char
*)(addr
+SECTORSIZE
))) {
1043 printf ("** Read error on %d\n", dev
);
1044 show_boot_progress (-58);
1047 show_boot_progress (58);
1049 #if defined(CONFIG_FIT)
1050 /* This cannot be done earlier, we need complete FIT image in RAM first */
1051 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
) {
1052 if (!fit_check_format (fit_hdr
)) {
1053 show_boot_progress (-150);
1054 puts ("** Bad FIT image format\n");
1057 show_boot_progress (151);
1058 fit_print_contents (fit_hdr
);
1062 /* Loading ok, update default load address */
1066 /* Check if we should attempt an auto-start */
1067 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
,"yes") == 0)) {
1068 char *local_args
[2];
1069 extern int do_bootm (cmd_tbl_t
*, int, int, char *[]);
1071 local_args
[0] = argv
[0];
1072 local_args
[1] = NULL
;
1074 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr
);
1076 do_bootm (cmdtp
, 0, 1, local_args
);
1083 nboot
, 4, 1, do_nandboot
,
1084 "boot from NAND device",
1090 #endif /* CONFIG_NAND_LEGACY */