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_JFFS2) && 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_JFFS2) && 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_JFFS2) && 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 int do_nand(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
215 #ifdef CONFIG_SYS_NAND_QUIET
216 int quiet
= CONFIG_SYS_NAND_QUIET
;
220 const char *quiet_str
= getenv("quiet");
222 /* at least two arguments please */
227 quiet
= simple_strtoul(quiet_str
, NULL
, 0) != 0;
231 if (strcmp(cmd
, "info") == 0) {
234 for (i
= 0; i
< CONFIG_SYS_MAX_NAND_DEVICE
; i
++) {
235 if (nand_info
[i
].name
)
236 printf("Device %d: %s, sector size %u KiB\n",
237 i
, nand_info
[i
].name
,
238 nand_info
[i
].erasesize
>> 10);
243 if (strcmp(cmd
, "device") == 0) {
246 if ((nand_curr_device
< 0) ||
247 (nand_curr_device
>= CONFIG_SYS_MAX_NAND_DEVICE
))
248 puts("\nno devices available\n");
250 printf("\nDevice %d: %s\n", nand_curr_device
,
251 nand_info
[nand_curr_device
].name
);
254 dev
= (int)simple_strtoul(argv
[2], NULL
, 10);
255 if (dev
< 0 || dev
>= CONFIG_SYS_MAX_NAND_DEVICE
|| !nand_info
[dev
].name
) {
256 puts("No such device\n");
259 printf("Device %d: %s", dev
, nand_info
[dev
].name
);
260 puts("... is now current device\n");
261 nand_curr_device
= dev
;
263 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE
265 * Select the chip in the board/cpu specific driver
267 board_nand_select_device(nand_info
[dev
].priv
, dev
);
273 if (strcmp(cmd
, "bad") != 0 && strcmp(cmd
, "erase") != 0 &&
274 strncmp(cmd
, "dump", 4) != 0 &&
275 strncmp(cmd
, "read", 4) != 0 && strncmp(cmd
, "write", 5) != 0 &&
276 strcmp(cmd
, "scrub") != 0 && strcmp(cmd
, "markbad") != 0 &&
277 strcmp(cmd
, "biterr") != 0 &&
278 strcmp(cmd
, "lock") != 0 && strcmp(cmd
, "unlock") != 0 )
281 /* the following commands operate on the current device */
282 if (nand_curr_device
< 0 || nand_curr_device
>= CONFIG_SYS_MAX_NAND_DEVICE
||
283 !nand_info
[nand_curr_device
].name
) {
284 puts("\nno devices available\n");
287 nand
= &nand_info
[nand_curr_device
];
289 if (strcmp(cmd
, "bad") == 0) {
290 printf("\nDevice %d bad blocks:\n", nand_curr_device
);
291 for (off
= 0; off
< nand
->size
; off
+= nand
->erasesize
)
292 if (nand_block_isbad(nand
, off
))
293 printf(" %08lx\n", off
);
300 * nand erase [clean] [off size]
302 if (strcmp(cmd
, "erase") == 0 || strcmp(cmd
, "scrub") == 0) {
303 nand_erase_options_t opts
;
304 /* "clean" at index 2 means request to write cleanmarker */
305 int clean
= argc
> 2 && !strcmp("clean", argv
[2]);
306 int o
= clean
? 3 : 2;
307 int scrub
= !strcmp(cmd
, "scrub");
309 printf("\nNAND %s: ", scrub
? "scrub" : "erase");
310 /* skip first two or three arguments, look for offset and size */
311 if (arg_off_size(argc
- o
, argv
+ o
, nand
, &off
, &size
) != 0)
314 memset(&opts
, 0, sizeof(opts
));
322 "scrub option will erase all factory set "
325 "There is no reliable way to recover them.\n"
327 "Use this command only for testing purposes "
330 "are sure of what you are doing!\n"
331 "\nReally scrub this NAND flash? <y/N>\n");
333 if (getc() == 'y' && getc() == '\r') {
336 puts("scrub aborted\n");
340 ret
= nand_erase_opts(nand
, &opts
);
341 printf("%s\n", ret
? "ERROR" : "OK");
343 return ret
== 0 ? 0 : 1;
346 if (strncmp(cmd
, "dump", 4) == 0) {
350 s
= strchr(cmd
, '.');
351 off
= (int)simple_strtoul(argv
[2], NULL
, 16);
353 if (s
!= NULL
&& strcmp(s
, ".oob") == 0)
354 ret
= nand_dump(nand
, off
, 1);
356 ret
= nand_dump(nand
, off
, 0);
358 return ret
== 0 ? 1 : 0;
362 if (strncmp(cmd
, "read", 4) == 0 || strncmp(cmd
, "write", 5) == 0) {
368 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
370 read
= strncmp(cmd
, "read", 4) == 0; /* 1 = read, 0 = write */
371 printf("\nNAND %s: ", read
? "read" : "write");
372 if (arg_off_size(argc
- 3, argv
+ 3, nand
, &off
, &size
) != 0)
375 s
= strchr(cmd
, '.');
376 if (!s
|| !strcmp(s
, ".jffs2") ||
377 !strcmp(s
, ".e") || !strcmp(s
, ".i")) {
379 ret
= nand_read_skip_bad(nand
, off
, &size
,
382 ret
= nand_write_skip_bad(nand
, off
, &size
,
384 } else if (s
!= NULL
&& !strcmp(s
, ".oob")) {
385 /* out-of-band data */
386 mtd_oob_ops_t ops
= {
387 .oobbuf
= (u8
*)addr
,
393 ret
= nand
->read_oob(nand
, off
, &ops
);
395 ret
= nand
->write_oob(nand
, off
, &ops
);
397 printf("Unknown nand command suffix '%s'.\n", s
);
401 printf(" %zu bytes %s: %s\n", size
,
402 read
? "read" : "written", ret
? "ERROR" : "OK");
404 return ret
== 0 ? 0 : 1;
407 if (strcmp(cmd
, "markbad") == 0) {
408 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
410 int ret
= nand
->block_markbad(nand
, addr
);
412 printf("block 0x%08lx successfully marked as bad\n",
416 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
422 if (strcmp(cmd
, "biterr") == 0) {
427 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
428 if (strcmp(cmd
, "lock") == 0) {
432 if (!strcmp("tight", argv
[2]))
434 if (!strcmp("status", argv
[2]))
438 do_nand_status(nand
);
440 if (!nand_lock(nand
, tight
)) {
441 puts("NAND flash successfully locked\n");
443 puts("Error locking NAND flash\n");
450 if (strcmp(cmd
, "unlock") == 0) {
451 if (arg_off_size(argc
- 2, argv
+ 2, nand
, &off
, &size
) < 0)
454 if (!nand_unlock(nand
, off
, size
)) {
455 puts("NAND flash successfully unlocked\n");
457 puts("Error unlocking NAND flash, "
458 "write and erase will probably fail\n");
470 U_BOOT_CMD(nand
, 5, 1, do_nand
,
472 "info - show available NAND devices\n"
473 "nand device [dev] - show or set current device\n"
474 "nand read - addr off|partition size\n"
475 "nand write - addr off|partition size\n"
476 " read/write 'size' bytes starting at offset 'off'\n"
477 " to/from memory address 'addr', skipping bad blocks.\n"
478 "nand erase [clean] [off size] - erase 'size' bytes from\n"
479 " offset 'off' (entire device if not specified)\n"
480 "nand bad - show bad blocks\n"
481 "nand dump[.oob] off - dump page\n"
482 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
483 "nand markbad off - mark bad block at offset (UNSAFE)\n"
484 "nand biterr off - make a bit error at offset (UNSAFE)\n"
485 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
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"
492 static int nand_load_image(cmd_tbl_t
*cmdtp
, nand_info_t
*nand
,
493 ulong offset
, ulong addr
, char *cmd
)
499 #if defined(CONFIG_FIT)
500 const void *fit_hdr
= NULL
;
503 s
= strchr(cmd
, '.');
505 (strcmp(s
, ".jffs2") && strcmp(s
, ".e") && strcmp(s
, ".i"))) {
506 printf("Unknown nand load suffix '%s'\n", s
);
507 show_boot_progress(-53);
511 printf("\nLoading from %s, offset 0x%lx\n", nand
->name
, offset
);
513 cnt
= nand
->writesize
;
514 r
= nand_read_skip_bad(nand
, offset
, &cnt
, (u_char
*) addr
);
516 puts("** Read error\n");
517 show_boot_progress (-56);
520 show_boot_progress (56);
522 switch (genimg_get_format ((void *)addr
)) {
523 case IMAGE_FORMAT_LEGACY
:
524 hdr
= (image_header_t
*)addr
;
526 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_hdr
= (const void *)addr
;
534 puts ("Fit image detected...\n");
536 cnt
= fit_get_size (fit_hdr
);
540 show_boot_progress (-57);
541 puts ("** Unknown image type\n");
544 show_boot_progress (57);
546 r
= nand_read_skip_bad(nand
, offset
, &cnt
, (u_char
*) addr
);
548 puts("** Read error\n");
549 show_boot_progress (-58);
552 show_boot_progress (58);
554 #if defined(CONFIG_FIT)
555 /* This cannot be done earlier, we need complete FIT image in RAM first */
556 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
) {
557 if (!fit_check_format (fit_hdr
)) {
558 show_boot_progress (-150);
559 puts ("** Bad FIT image format\n");
562 show_boot_progress (151);
563 fit_print_contents (fit_hdr
);
567 /* Loading ok, update default load address */
571 /* Check if we should attempt an auto-start */
572 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
, "yes") == 0)) {
574 extern int do_bootm(cmd_tbl_t
*, int, int, char *[]);
577 local_args
[1] = NULL
;
579 printf("Automatic boot of image at addr 0x%08lx ...\n", addr
);
581 do_bootm(cmdtp
, 0, 1, local_args
);
587 int do_nandboot(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
589 char *boot_device
= NULL
;
591 ulong addr
, offset
= 0;
592 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_CMD_MTDPARTS)
593 struct mtd_device
*dev
;
594 struct part_info
*part
;
598 char *p
= (argc
== 2) ? argv
[1] : argv
[2];
599 if (!(str2long(p
, &addr
)) && (mtdparts_init() == 0) &&
600 (find_dev_and_part(p
, &dev
, &pnum
, &part
) == 0)) {
601 if (dev
->id
->type
!= MTD_DEV_TYPE_NAND
) {
602 puts("Not a NAND device\n");
608 addr
= simple_strtoul(argv
[1], NULL
, 16);
610 addr
= CONFIG_SYS_LOAD_ADDR
;
611 return nand_load_image(cmdtp
, &nand_info
[dev
->id
->num
],
612 part
->offset
, addr
, argv
[0]);
617 show_boot_progress(52);
620 addr
= CONFIG_SYS_LOAD_ADDR
;
621 boot_device
= getenv("bootdevice");
624 addr
= simple_strtoul(argv
[1], NULL
, 16);
625 boot_device
= getenv("bootdevice");
628 addr
= simple_strtoul(argv
[1], NULL
, 16);
629 boot_device
= argv
[2];
632 addr
= simple_strtoul(argv
[1], NULL
, 16);
633 boot_device
= argv
[2];
634 offset
= simple_strtoul(argv
[3], NULL
, 16);
637 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_CMD_MTDPARTS)
641 show_boot_progress(-53);
645 show_boot_progress(53);
647 puts("\n** No boot device **\n");
648 show_boot_progress(-54);
651 show_boot_progress(54);
653 idx
= simple_strtoul(boot_device
, NULL
, 16);
655 if (idx
< 0 || idx
>= CONFIG_SYS_MAX_NAND_DEVICE
|| !nand_info
[idx
].name
) {
656 printf("\n** Device %d not available\n", idx
);
657 show_boot_progress(-55);
660 show_boot_progress(55);
662 return nand_load_image(cmdtp
, &nand_info
[idx
], offset
, addr
, argv
[0]);
665 U_BOOT_CMD(nboot
, 4, 1, do_nandboot
,
666 "boot from NAND device",
667 "[partition] | [[[loadAddr] dev] offset]\n");
671 #else /* CONFIG_NAND_LEGACY */
674 * Legacy NAND support - to be phased out
680 #include <watchdog.h>
682 #ifdef CONFIG_show_boot_progress
683 # include <status_led.h>
684 # define show_boot_progress(arg) show_boot_progress(arg)
686 # define show_boot_progress(arg)
689 #if defined(CONFIG_CMD_NAND)
690 #include <linux/mtd/nand_legacy.h>
692 #include <linux/mtd/nand_ids.h>
693 #include <jffs2/jffs2.h>
696 #ifdef CONFIG_OMAP1510
697 void archflashwp(void *archdata
, int wp
);
700 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
705 /* ****************** WARNING *********************
706 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
707 * erase (or at least attempt to erase) blocks that are marked
708 * bad. This can be very handy if you are _sure_ that the block
709 * is OK, say because you marked a good block bad to test bad
710 * block handling and you are done testing, or if you have
711 * accidentally marked blocks bad.
713 * Erasing factory marked bad blocks is a _bad_ idea. If the
714 * erase succeeds there is no reliable way to find them again,
715 * and attempting to program or erase bad blocks can affect
716 * the data in _other_ (good) blocks.
718 #define ALLOW_ERASE_BAD_DEBUG 0
720 #define CONFIG_MTD_NAND_ECC /* enable ECC */
721 #define CONFIG_MTD_NAND_ECC_JFFS2
723 /* bits for nand_legacy_rw() `cmd'; or together as needed */
724 #define NANDRW_READ 0x01
725 #define NANDRW_WRITE 0x00
726 #define NANDRW_JFFS2 0x02
727 #define NANDRW_JFFS2_SKIP 0x04
730 * Imports from nand_legacy.c
732 extern struct nand_chip nand_dev_desc
[CONFIG_SYS_MAX_NAND_DEVICE
];
733 extern int curr_device
;
734 extern int nand_legacy_erase(struct nand_chip
*nand
, size_t ofs
,
735 size_t len
, int clean
);
736 extern int nand_legacy_rw(struct nand_chip
*nand
, int cmd
, size_t start
,
737 size_t len
, size_t *retlen
, u_char
*buf
);
738 extern void nand_print(struct nand_chip
*nand
);
739 extern void nand_print_bad(struct nand_chip
*nand
);
740 extern int nand_read_oob(struct nand_chip
*nand
, size_t ofs
,
741 size_t len
, size_t *retlen
, u_char
*buf
);
742 extern int nand_write_oob(struct nand_chip
*nand
, size_t ofs
,
743 size_t len
, size_t *retlen
, const u_char
*buf
);
746 int do_nand (cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
756 if (strcmp (argv
[1], "info") == 0) {
761 for (i
= 0; i
< CONFIG_SYS_MAX_NAND_DEVICE
; ++i
) {
762 if (nand_dev_desc
[i
].ChipID
==
764 continue; /* list only known devices */
765 printf ("Device %d: ", i
);
766 nand_print (&nand_dev_desc
[i
]);
770 } else if (strcmp (argv
[1], "device") == 0) {
771 if ((curr_device
< 0)
772 || (curr_device
>= CONFIG_SYS_MAX_NAND_DEVICE
)) {
773 puts ("\nno devices available\n");
776 printf ("\nDevice %d: ", curr_device
);
777 nand_print (&nand_dev_desc
[curr_device
]);
780 } else if (strcmp (argv
[1], "bad") == 0) {
781 if ((curr_device
< 0)
782 || (curr_device
>= CONFIG_SYS_MAX_NAND_DEVICE
)) {
783 puts ("\nno devices available\n");
786 printf ("\nDevice %d bad blocks:\n", curr_device
);
787 nand_print_bad (&nand_dev_desc
[curr_device
]);
794 if (strcmp (argv
[1], "device") == 0) {
795 int dev
= (int) simple_strtoul (argv
[2], NULL
, 10);
797 printf ("\nDevice %d: ", dev
);
798 if (dev
>= CONFIG_SYS_MAX_NAND_DEVICE
) {
799 puts ("unknown device\n");
802 nand_print (&nand_dev_desc
[dev
]);
803 /*nand_print (dev); */
805 if (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
) {
811 puts ("... is now current device\n");
814 } else if (strcmp (argv
[1], "erase") == 0
815 && strcmp (argv
[2], "clean") == 0) {
816 struct nand_chip
*nand
= &nand_dev_desc
[curr_device
];
818 ulong size
= nand
->totlen
;
821 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device
, off
, size
);
823 ret
= nand_legacy_erase (nand
, off
, size
, 1);
825 printf ("%s\n", ret
? "ERROR" : "OK");
833 /* at least 4 args */
835 if (strncmp (argv
[1], "read", 4) == 0 ||
836 strncmp (argv
[1], "write", 5) == 0) {
837 ulong addr
= simple_strtoul (argv
[2], NULL
, 16);
838 off_t off
= simple_strtoul (argv
[3], NULL
, 16);
839 size_t size
= simple_strtoul (argv
[4], NULL
, 16);
840 int cmd
= (strncmp (argv
[1], "read", 4) == 0) ?
841 NANDRW_READ
: NANDRW_WRITE
;
844 char *cmdtail
= strchr (argv
[1], '.');
846 if (cmdtail
&& !strncmp (cmdtail
, ".oob", 2)) {
847 /* read out-of-band data */
848 if (cmd
& NANDRW_READ
) {
849 ret
= nand_read_oob (nand_dev_desc
+ curr_device
,
853 ret
= nand_write_oob (nand_dev_desc
+ curr_device
,
858 } else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2s", 7)) {
859 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
860 if (cmd
& NANDRW_READ
)
861 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
862 } else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2", 2))
863 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
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 CONFIG_SYS_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 /* CONFIG_SYS_NAND_SKIP_BAD_DOT_I */
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");
925 "legacy NAND sub-system",
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
= CONFIG_SYS_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);
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
>= CONFIG_SYS_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 "boot from NAND device",
1080 #endif /* CONFIG_NAND_LEGACY */