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
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_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
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_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
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_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
159 printf("device %d ", idx
);
160 if (*size
== nand
->size
)
161 puts("whole chip\n");
163 printf("offset 0x%lx, size 0x%x\n", *off
, *size
);
167 int do_nand(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
174 #ifdef CFG_NAND_QUIET
175 int quiet
= CFG_NAND_QUIET
;
179 const char *quiet_str
= getenv("quiet");
181 /* at least two arguments please */
186 quiet
= simple_strtoul(quiet_str
, NULL
, 0) != 0;
190 if (strcmp(cmd
, "info") == 0) {
193 for (i
= 0; i
< CFG_MAX_NAND_DEVICE
; i
++) {
194 if (nand_info
[i
].name
)
195 printf("Device %d: %s, sector size %u KiB\n",
196 i
, nand_info
[i
].name
,
197 nand_info
[i
].erasesize
>> 10);
202 if (strcmp(cmd
, "device") == 0) {
205 if ((nand_curr_device
< 0) ||
206 (nand_curr_device
>= CFG_MAX_NAND_DEVICE
))
207 puts("\nno devices available\n");
209 printf("\nDevice %d: %s\n", nand_curr_device
,
210 nand_info
[nand_curr_device
].name
);
213 dev
= (int)simple_strtoul(argv
[2], NULL
, 10);
214 if (dev
< 0 || dev
>= CFG_MAX_NAND_DEVICE
|| !nand_info
[dev
].name
) {
215 puts("No such device\n");
218 printf("Device %d: %s", dev
, nand_info
[dev
].name
);
219 puts("... is now current device\n");
220 nand_curr_device
= dev
;
222 #ifdef CFG_NAND_SELECT_DEVICE
224 * Select the chip in the board/cpu specific driver
226 board_nand_select_device(nand_info
[dev
].priv
, dev
);
232 if (strcmp(cmd
, "bad") != 0 && strcmp(cmd
, "erase") != 0 &&
233 strncmp(cmd
, "dump", 4) != 0 &&
234 strncmp(cmd
, "read", 4) != 0 && strncmp(cmd
, "write", 5) != 0 &&
235 strcmp(cmd
, "scrub") != 0 && strcmp(cmd
, "markbad") != 0 &&
236 strcmp(cmd
, "biterr") != 0 &&
237 strcmp(cmd
, "lock") != 0 && strcmp(cmd
, "unlock") != 0 )
240 /* the following commands operate on the current device */
241 if (nand_curr_device
< 0 || nand_curr_device
>= CFG_MAX_NAND_DEVICE
||
242 !nand_info
[nand_curr_device
].name
) {
243 puts("\nno devices available\n");
246 nand
= &nand_info
[nand_curr_device
];
248 if (strcmp(cmd
, "bad") == 0) {
249 printf("\nDevice %d bad blocks:\n", nand_curr_device
);
250 for (off
= 0; off
< nand
->size
; off
+= nand
->erasesize
)
251 if (nand_block_isbad(nand
, off
))
252 printf(" %08lx\n", off
);
259 * nand erase [clean] [off size]
261 if (strcmp(cmd
, "erase") == 0 || strcmp(cmd
, "scrub") == 0) {
262 nand_erase_options_t opts
;
263 /* "clean" at index 2 means request to write cleanmarker */
264 int clean
= argc
> 2 && !strcmp("clean", argv
[2]);
265 int o
= clean
? 3 : 2;
266 int scrub
= !strcmp(cmd
, "scrub");
268 printf("\nNAND %s: ", scrub
? "scrub" : "erase");
269 /* skip first two or three arguments, look for offset and size */
270 if (arg_off_size(argc
- o
, argv
+ o
, nand
, &off
, &size
) != 0)
273 memset(&opts
, 0, sizeof(opts
));
281 "scrub option will erase all factory set "
284 "There is no reliable way to recover them.\n"
286 "Use this command only for testing purposes "
289 "are sure of what you are doing!\n"
290 "\nReally scrub this NAND flash? <y/N>\n");
292 if (getc() == 'y' && getc() == '\r') {
295 puts("scrub aborted\n");
299 ret
= nand_erase_opts(nand
, &opts
);
300 printf("%s\n", ret
? "ERROR" : "OK");
302 return ret
== 0 ? 0 : 1;
305 if (strncmp(cmd
, "dump", 4) == 0) {
309 s
= strchr(cmd
, '.');
310 off
= (int)simple_strtoul(argv
[2], NULL
, 16);
312 if (s
!= NULL
&& strcmp(s
, ".oob") == 0)
313 ret
= nand_dump(nand
, off
, 1);
315 ret
= nand_dump(nand
, off
, 0);
317 return ret
== 0 ? 1 : 0;
321 if (strncmp(cmd
, "read", 4) == 0 || strncmp(cmd
, "write", 5) == 0) {
327 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
329 read
= strncmp(cmd
, "read", 4) == 0; /* 1 = read, 0 = write */
330 printf("\nNAND %s: ", read
? "read" : "write");
331 if (arg_off_size(argc
- 3, argv
+ 3, nand
, &off
, &size
) != 0)
334 s
= strchr(cmd
, '.');
335 if (!s
|| !strcmp(s
, ".jffs2") ||
336 !strcmp(s
, ".e") || !strcmp(s
, ".i")) {
338 ret
= nand_read_skip_bad(nand
, off
, &size
,
341 ret
= nand_write_skip_bad(nand
, off
, &size
,
343 } else if (s
!= NULL
&& !strcmp(s
, ".oob")) {
344 /* out-of-band data */
345 mtd_oob_ops_t ops
= {
346 .oobbuf
= (u8
*)addr
,
352 ret
= nand
->read_oob(nand
, off
, &ops
);
354 ret
= nand
->write_oob(nand
, off
, &ops
);
356 printf("Unknown nand command suffix '%s'.\n", s
);
360 printf(" %d bytes %s: %s\n", size
,
361 read
? "read" : "written", ret
? "ERROR" : "OK");
363 return ret
== 0 ? 0 : 1;
366 if (strcmp(cmd
, "markbad") == 0) {
367 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
369 int ret
= nand
->block_markbad(nand
, addr
);
371 printf("block 0x%08lx successfully marked as bad\n",
375 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
381 if (strcmp(cmd
, "biterr") == 0) {
386 if (strcmp(cmd
, "lock") == 0) {
390 if (!strcmp("tight", argv
[2]))
392 if (!strcmp("status", argv
[2]))
398 * TODO: must be implemented and tested by someone with HW
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
->writesize
) {
414 int s
= nand_get_lock_status(nand
, off
);
416 /* print message only if status has changed
419 if (off
== nand
->size
- nand
->writesize
420 || (s
!= last_status
&& off
!= 0)) {
422 printf("%08lx - %08lx: %8d pages %s%s%s\n",
425 (off
-block_start
)/nand
->writesize
,
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");
445 if (strcmp(cmd
, "unlock") == 0) {
446 if (arg_off_size(argc
- 2, argv
+ 2, nand
, &off
, &size
) < 0)
452 * TODO: must be implemented and tested by someone with HW
455 if (!nand_unlock(nand
, off
, size
)) {
456 puts("NAND flash successfully unlocked\n");
458 puts("Error unlocking NAND flash, "
459 "write and erase will probably fail\n");
467 printf("Usage:\n%s\n", cmdtp
->usage
);
471 U_BOOT_CMD(nand
, 5, 1, do_nand
,
472 "nand - NAND sub-system\n",
473 "info - show available NAND devices\n"
474 "nand device [dev] - show or set current device\n"
475 "nand read - addr off|partition size\n"
476 "nand write - addr off|partition size\n"
477 " read/write 'size' bytes starting at offset 'off'\n"
478 " to/from memory address 'addr', skipping bad blocks.\n"
479 "nand erase [clean] [off size] - erase 'size' bytes from\n"
480 " offset 'off' (entire device if not specified)\n"
481 "nand bad - show bad blocks\n"
482 "nand dump[.oob] off - dump page\n"
483 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
484 "nand markbad off - mark bad block at offset (UNSAFE)\n"
485 "nand biterr off - make a bit error at offset (UNSAFE)\n"
486 "nand lock [tight] [status]\n"
487 " bring nand to lock state or display locked pages\n"
488 "nand unlock [offset] [size] - unlock section\n");
490 static int nand_load_image(cmd_tbl_t
*cmdtp
, nand_info_t
*nand
,
491 ulong offset
, ulong addr
, char *cmd
)
497 #if defined(CONFIG_FIT)
498 const void *fit_hdr
= NULL
;
501 s
= strchr(cmd
, '.');
503 (strcmp(s
, ".jffs2") && !strcmp(s
, ".e") && !strcmp(s
, ".i"))) {
504 printf("Unknown nand load suffix '%s'\n", s
);
505 show_boot_progress(-53);
509 printf("\nLoading from %s, offset 0x%lx\n", nand
->name
, offset
);
511 cnt
= nand
->writesize
;
512 r
= nand_read(nand
, offset
, &cnt
, (u_char
*) addr
);
514 puts("** Read error\n");
515 show_boot_progress (-56);
518 show_boot_progress (56);
520 switch (genimg_get_format ((void *)addr
)) {
521 case IMAGE_FORMAT_LEGACY
:
522 hdr
= (image_header_t
*)addr
;
524 show_boot_progress (57);
525 image_print_contents (hdr
);
527 cnt
= image_get_image_size (hdr
);
529 #if defined(CONFIG_FIT)
530 case IMAGE_FORMAT_FIT
:
531 fit_hdr
= (const void *)addr
;
532 puts ("Fit image detected...\n");
534 cnt
= fit_get_size (fit_hdr
);
538 show_boot_progress (-57);
539 puts ("** Unknown image type\n");
542 show_boot_progress (57);
544 /* FIXME: skip bad blocks */
545 r
= nand_read(nand
, offset
, &cnt
, (u_char
*) addr
);
547 puts("** Read error\n");
548 show_boot_progress (-58);
551 show_boot_progress (58);
553 #if defined(CONFIG_FIT)
554 /* This cannot be done earlier, we need complete FIT image in RAM first */
555 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
) {
556 if (!fit_check_format (fit_hdr
)) {
557 show_boot_progress (-150);
558 puts ("** Bad FIT image format\n");
561 show_boot_progress (151);
562 fit_print_contents (fit_hdr
);
566 /* Loading ok, update default load address */
570 /* Check if we should attempt an auto-start */
571 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
, "yes") == 0)) {
573 extern int do_bootm(cmd_tbl_t
*, int, int, char *[]);
576 local_args
[1] = NULL
;
578 printf("Automatic boot of image at addr 0x%08lx ...\n", addr
);
580 do_bootm(cmdtp
, 0, 1, local_args
);
586 int do_nandboot(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
588 char *boot_device
= NULL
;
590 ulong addr
, offset
= 0;
591 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
592 struct mtd_device
*dev
;
593 struct part_info
*part
;
597 char *p
= (argc
== 2) ? argv
[1] : argv
[2];
598 if (!(str2long(p
, &addr
)) && (mtdparts_init() == 0) &&
599 (find_dev_and_part(p
, &dev
, &pnum
, &part
) == 0)) {
600 if (dev
->id
->type
!= MTD_DEV_TYPE_NAND
) {
601 puts("Not a NAND device\n");
607 addr
= simple_strtoul(argv
[1], NULL
, 16);
609 addr
= CFG_LOAD_ADDR
;
610 return nand_load_image(cmdtp
, &nand_info
[dev
->id
->num
],
611 part
->offset
, addr
, argv
[0]);
616 show_boot_progress(52);
619 addr
= CFG_LOAD_ADDR
;
620 boot_device
= getenv("bootdevice");
623 addr
= simple_strtoul(argv
[1], NULL
, 16);
624 boot_device
= getenv("bootdevice");
627 addr
= simple_strtoul(argv
[1], NULL
, 16);
628 boot_device
= argv
[2];
631 addr
= simple_strtoul(argv
[1], NULL
, 16);
632 boot_device
= argv
[2];
633 offset
= simple_strtoul(argv
[3], NULL
, 16);
636 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
639 printf("Usage:\n%s\n", cmdtp
->usage
);
640 show_boot_progress(-53);
644 show_boot_progress(53);
646 puts("\n** No boot device **\n");
647 show_boot_progress(-54);
650 show_boot_progress(54);
652 idx
= simple_strtoul(boot_device
, NULL
, 16);
654 if (idx
< 0 || idx
>= CFG_MAX_NAND_DEVICE
|| !nand_info
[idx
].name
) {
655 printf("\n** Device %d not available\n", idx
);
656 show_boot_progress(-55);
659 show_boot_progress(55);
661 return nand_load_image(cmdtp
, &nand_info
[idx
], offset
, addr
, argv
[0]);
664 U_BOOT_CMD(nboot
, 4, 1, do_nandboot
,
665 "nboot - boot from NAND device\n",
666 "[partition] | [[[loadAddr] dev] offset]\n");
670 #else /* CFG_NAND_LEGACY */
673 * Legacy NAND support - to be phased out
679 #include <watchdog.h>
681 #ifdef CONFIG_show_boot_progress
682 # include <status_led.h>
683 # define show_boot_progress(arg) show_boot_progress(arg)
685 # define show_boot_progress(arg)
688 #if defined(CONFIG_CMD_NAND)
689 #include <linux/mtd/nand_legacy.h>
691 #include <linux/mtd/nand_ids.h>
692 #include <jffs2/jffs2.h>
695 #ifdef CONFIG_OMAP1510
696 void archflashwp(void *archdata
, int wp
);
699 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
704 /* ****************** WARNING *********************
705 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
706 * erase (or at least attempt to erase) blocks that are marked
707 * bad. This can be very handy if you are _sure_ that the block
708 * is OK, say because you marked a good block bad to test bad
709 * block handling and you are done testing, or if you have
710 * accidentally marked blocks bad.
712 * Erasing factory marked bad blocks is a _bad_ idea. If the
713 * erase succeeds there is no reliable way to find them again,
714 * and attempting to program or erase bad blocks can affect
715 * the data in _other_ (good) blocks.
717 #define ALLOW_ERASE_BAD_DEBUG 0
719 #define CONFIG_MTD_NAND_ECC /* enable ECC */
720 #define CONFIG_MTD_NAND_ECC_JFFS2
722 /* bits for nand_legacy_rw() `cmd'; or together as needed */
723 #define NANDRW_READ 0x01
724 #define NANDRW_WRITE 0x00
725 #define NANDRW_JFFS2 0x02
726 #define NANDRW_JFFS2_SKIP 0x04
729 * Imports from nand_legacy.c
731 extern struct nand_chip nand_dev_desc
[CFG_MAX_NAND_DEVICE
];
732 extern int curr_device
;
733 extern int nand_legacy_erase(struct nand_chip
*nand
, size_t ofs
,
734 size_t len
, int clean
);
735 extern int nand_legacy_rw(struct nand_chip
*nand
, int cmd
, size_t start
,
736 size_t len
, size_t *retlen
, u_char
*buf
);
737 extern void nand_print(struct nand_chip
*nand
);
738 extern void nand_print_bad(struct nand_chip
*nand
);
739 extern int nand_read_oob(struct nand_chip
*nand
, size_t ofs
,
740 size_t len
, size_t *retlen
, u_char
*buf
);
741 extern int nand_write_oob(struct nand_chip
*nand
, size_t ofs
,
742 size_t len
, size_t *retlen
, const u_char
*buf
);
745 int do_nand (cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
752 printf ("Usage:\n%s\n", cmdtp
->usage
);
755 if (strcmp (argv
[1], "info") == 0) {
760 for (i
= 0; i
< CFG_MAX_NAND_DEVICE
; ++i
) {
761 if (nand_dev_desc
[i
].ChipID
==
763 continue; /* list only known devices */
764 printf ("Device %d: ", i
);
765 nand_print (&nand_dev_desc
[i
]);
769 } else if (strcmp (argv
[1], "device") == 0) {
770 if ((curr_device
< 0)
771 || (curr_device
>= CFG_MAX_NAND_DEVICE
)) {
772 puts ("\nno devices available\n");
775 printf ("\nDevice %d: ", curr_device
);
776 nand_print (&nand_dev_desc
[curr_device
]);
779 } else if (strcmp (argv
[1], "bad") == 0) {
780 if ((curr_device
< 0)
781 || (curr_device
>= CFG_MAX_NAND_DEVICE
)) {
782 puts ("\nno devices available\n");
785 printf ("\nDevice %d bad blocks:\n", curr_device
);
786 nand_print_bad (&nand_dev_desc
[curr_device
]);
790 printf ("Usage:\n%s\n", cmdtp
->usage
);
793 if (strcmp (argv
[1], "device") == 0) {
794 int dev
= (int) simple_strtoul (argv
[2], NULL
, 10);
796 printf ("\nDevice %d: ", dev
);
797 if (dev
>= CFG_MAX_NAND_DEVICE
) {
798 puts ("unknown device\n");
801 nand_print (&nand_dev_desc
[dev
]);
802 /*nand_print (dev); */
804 if (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
) {
810 puts ("... is now current device\n");
813 } else if (strcmp (argv
[1], "erase") == 0
814 && strcmp (argv
[2], "clean") == 0) {
815 struct nand_chip
*nand
= &nand_dev_desc
[curr_device
];
817 ulong size
= nand
->totlen
;
820 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device
, off
, size
);
822 ret
= nand_legacy_erase (nand
, off
, size
, 1);
824 printf ("%s\n", ret
? "ERROR" : "OK");
829 printf ("Usage:\n%s\n", cmdtp
->usage
);
832 /* at least 4 args */
834 if (strncmp (argv
[1], "read", 4) == 0 ||
835 strncmp (argv
[1], "write", 5) == 0) {
836 ulong addr
= simple_strtoul (argv
[2], NULL
, 16);
837 off_t off
= simple_strtoul (argv
[3], NULL
, 16);
838 size_t size
= simple_strtoul (argv
[4], NULL
, 16);
839 int cmd
= (strncmp (argv
[1], "read", 4) == 0) ?
840 NANDRW_READ
: NANDRW_WRITE
;
843 char *cmdtail
= strchr (argv
[1], '.');
845 if (cmdtail
&& !strncmp (cmdtail
, ".oob", 2)) {
846 /* read out-of-band data */
847 if (cmd
& NANDRW_READ
) {
848 ret
= nand_read_oob (nand_dev_desc
+ curr_device
,
852 ret
= nand_write_oob (nand_dev_desc
+ curr_device
,
857 } else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2", 2))
858 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
859 else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2s", 2)) {
860 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
861 if (cmd
& NANDRW_READ
)
862 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
865 /* need ".e" same as ".j" for compatibility with older units */
866 else if (cmdtail
&& !strcmp (cmdtail
, ".e"))
867 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
869 #ifdef CFG_NAND_SKIP_BAD_DOT_I
870 /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
871 /* ".i" for image -> read skips bad block (no 0xff) */
872 else if (cmdtail
&& !strcmp (cmdtail
, ".i")) {
873 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
874 if (cmd
& NANDRW_READ
)
875 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
877 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
879 printf ("Usage:\n%s\n", cmdtp
->usage
);
883 printf ("\nNAND %s: device %d offset %ld, size %lu ...\n",
884 (cmd
& NANDRW_READ
) ? "read" : "write",
885 curr_device
, off
, (ulong
)size
);
887 ret
= nand_legacy_rw (nand_dev_desc
+ curr_device
,
889 &total
, (u_char
*) addr
);
891 printf (" %d bytes %s: %s\n", total
,
892 (cmd
& NANDRW_READ
) ? "read" : "written",
893 ret
? "ERROR" : "OK");
896 } else if (strcmp (argv
[1], "erase") == 0 &&
897 (argc
== 4 || strcmp ("clean", argv
[2]) == 0)) {
898 int clean
= argc
== 5;
900 simple_strtoul (argv
[2 + clean
], NULL
, 16);
902 simple_strtoul (argv
[3 + clean
], NULL
, 16);
905 printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
906 curr_device
, off
, size
);
908 ret
= nand_legacy_erase (nand_dev_desc
+ curr_device
,
911 printf ("%s\n", ret
? "ERROR" : "OK");
915 printf ("Usage:\n%s\n", cmdtp
->usage
);
925 "nand - legacy NAND sub-system\n",
926 "info - show available NAND devices\n"
927 "nand device [dev] - show or set current device\n"
928 "nand read[.jffs2[s]] addr off size\n"
929 "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
930 " at offset `off' to/from memory address `addr'\n"
931 "nand erase [clean] [off size] - erase `size' bytes from\n"
932 " offset `off' (entire device if not specified)\n"
933 "nand bad - show bad blocks\n"
934 "nand read.oob addr off size - read out-of-band data\n"
935 "nand write.oob addr off size - read out-of-band data\n"
938 int do_nandboot (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
940 char *boot_device
= NULL
;
948 #if defined(CONFIG_FIT)
949 const void *fit_hdr
= NULL
;
952 show_boot_progress (52);
955 addr
= CFG_LOAD_ADDR
;
956 boot_device
= getenv ("bootdevice");
959 addr
= simple_strtoul(argv
[1], NULL
, 16);
960 boot_device
= getenv ("bootdevice");
963 addr
= simple_strtoul(argv
[1], NULL
, 16);
964 boot_device
= argv
[2];
967 addr
= simple_strtoul(argv
[1], NULL
, 16);
968 boot_device
= argv
[2];
969 offset
= simple_strtoul(argv
[3], NULL
, 16);
972 printf ("Usage:\n%s\n", cmdtp
->usage
);
973 show_boot_progress (-53);
977 show_boot_progress (53);
979 puts ("\n** No boot device **\n");
980 show_boot_progress (-54);
983 show_boot_progress (54);
985 dev
= simple_strtoul(boot_device
, &ep
, 16);
987 if ((dev
>= CFG_MAX_NAND_DEVICE
) ||
988 (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
)) {
989 printf ("\n** Device %d not available\n", dev
);
990 show_boot_progress (-55);
993 show_boot_progress (55);
995 printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
996 dev
, nand_dev_desc
[dev
].name
, nand_dev_desc
[dev
].IO_ADDR
,
999 if (nand_legacy_rw (nand_dev_desc
+ dev
, NANDRW_READ
, offset
,
1000 SECTORSIZE
, NULL
, (u_char
*)addr
)) {
1001 printf ("** Read error on %d\n", dev
);
1002 show_boot_progress (-56);
1005 show_boot_progress (56);
1007 switch (genimg_get_format ((void *)addr
)) {
1008 case IMAGE_FORMAT_LEGACY
:
1009 hdr
= (image_header_t
*)addr
;
1010 image_print_contents (hdr
);
1012 cnt
= image_get_image_size (hdr
);
1015 #if defined(CONFIG_FIT)
1016 case IMAGE_FORMAT_FIT
:
1017 fit_hdr
= (const void *)addr
;
1018 puts ("Fit image detected...\n");
1020 cnt
= fit_get_size (fit_hdr
);
1024 show_boot_progress (-57);
1025 puts ("** Unknown image type\n");
1028 show_boot_progress (57);
1030 if (nand_legacy_rw (nand_dev_desc
+ dev
, NANDRW_READ
,
1031 offset
+ SECTORSIZE
, cnt
, NULL
,
1032 (u_char
*)(addr
+SECTORSIZE
))) {
1033 printf ("** Read error on %d\n", dev
);
1034 show_boot_progress (-58);
1037 show_boot_progress (58);
1039 #if defined(CONFIG_FIT)
1040 /* This cannot be done earlier, we need complete FIT image in RAM first */
1041 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
) {
1042 if (!fit_check_format (fit_hdr
)) {
1043 show_boot_progress (-150);
1044 puts ("** Bad FIT image format\n");
1047 show_boot_progress (151);
1048 fit_print_contents (fit_hdr
);
1052 /* Loading ok, update default load address */
1056 /* Check if we should attempt an auto-start */
1057 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
,"yes") == 0)) {
1058 char *local_args
[2];
1059 extern int do_bootm (cmd_tbl_t
*, int, int, char *[]);
1061 local_args
[0] = argv
[0];
1062 local_args
[1] = NULL
;
1064 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr
);
1066 do_bootm (cmdtp
, 0, 1, local_args
);
1073 nboot
, 4, 1, do_nandboot
,
1074 "nboot - boot from NAND device\n",
1080 #endif /* CFG_NAND_LEGACY */