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 static int nand_dump_oob(nand_info_t
*nand
, ulong off
)
45 static int nand_dump(nand_info_t
*nand
, ulong off
)
50 buf
= malloc(nand
->oobblock
+ nand
->oobsize
);
52 puts("No memory for page buffer\n");
55 off
&= ~(nand
->oobblock
- 1);
56 i
= nand_read_raw(nand
, buf
, off
, nand
->oobblock
, nand
->oobsize
);
58 printf("Error (%d) reading page %08x\n", i
, off
);
62 printf("Page %08x dump:\n", off
);
63 i
= nand
->oobblock
>> 4; p
= buf
;
65 printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x"
66 " %02x %02x %02x %02x %02x %02x %02x %02x\n",
67 p
[0], p
[1], p
[2], p
[3], p
[4], p
[5], p
[6], p
[7],
68 p
[8], p
[9], p
[10], p
[11], p
[12], p
[13], p
[14], p
[15]);
72 i
= nand
->oobsize
>> 3;
74 printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
75 p
[0], p
[1], p
[2], p
[3], p
[4], p
[5], p
[6], p
[7]);
83 /* ------------------------------------------------------------------------- */
85 static inline int str2long(char *p
, ulong
*num
)
89 *num
= simple_strtoul(p
, &endptr
, 16);
90 return (*p
!= '\0' && *endptr
== '\0') ? 1 : 0;
94 arg_off_size(int argc
, char *argv
[], nand_info_t
*nand
, ulong
*off
, size_t *size
)
96 int idx
= nand_curr_device
;
97 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
98 struct mtd_device
*dev
;
99 struct part_info
*part
;
102 if (argc
>= 1 && !(str2long(argv
[0], off
))) {
103 if ((mtdparts_init() == 0) &&
104 (find_dev_and_part(argv
[0], &dev
, &pnum
, &part
) == 0)) {
105 if (dev
->id
->type
!= MTD_DEV_TYPE_NAND
) {
106 puts("not a NAND device\n");
111 if (!(str2long(argv
[1], (ulong
*)size
))) {
112 printf("'%s' is not a number\n", argv
[1]);
115 if (*size
> part
->size
)
121 *nand
= nand_info
[idx
];
128 if (!(str2long(argv
[0], off
))) {
129 printf("'%s' is not a number\n", argv
[0]);
137 if (!(str2long(argv
[1], (ulong
*)size
))) {
138 printf("'%s' is not a number\n", argv
[1]);
142 *size
= nand
->size
- *off
;
145 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
148 printf("device %d ", idx
);
149 if (*size
== nand
->size
)
150 puts("whole chip\n");
152 printf("offset 0x%x, size 0x%x\n", *off
, *size
);
156 int do_nand(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
163 #ifdef CFG_NAND_QUIET
164 int quiet
= CFG_NAND_QUIET
;
168 const char *quiet_str
= getenv("quiet");
170 /* at least two arguments please */
175 quiet
= simple_strtoul(quiet_str
, NULL
, 0) != 0;
179 if (strcmp(cmd
, "info") == 0) {
182 for (i
= 0; i
< CFG_MAX_NAND_DEVICE
; i
++) {
183 if (nand_info
[i
].name
)
184 printf("Device %d: %s, sector size %lu KiB\n",
185 i
, nand_info
[i
].name
,
186 nand_info
[i
].erasesize
>> 10);
191 if (strcmp(cmd
, "device") == 0) {
194 if ((nand_curr_device
< 0) ||
195 (nand_curr_device
>= CFG_MAX_NAND_DEVICE
))
196 puts("\nno devices available\n");
198 printf("\nDevice %d: %s\n", nand_curr_device
,
199 nand_info
[nand_curr_device
].name
);
202 dev
= (int)simple_strtoul(argv
[2], NULL
, 10);
203 if (dev
< 0 || dev
>= CFG_MAX_NAND_DEVICE
|| !nand_info
[dev
].name
) {
204 puts("No such device\n");
207 printf("Device %d: %s", dev
, nand_info
[dev
].name
);
208 puts("... is now current device\n");
209 nand_curr_device
= dev
;
211 #ifdef CFG_NAND_SELECT_DEVICE
213 * Select the chip in the board/cpu specific driver
215 board_nand_select_device(nand_info
[dev
].priv
, dev
);
221 if (strcmp(cmd
, "bad") != 0 && strcmp(cmd
, "erase") != 0 &&
222 strncmp(cmd
, "dump", 4) != 0 &&
223 strncmp(cmd
, "read", 4) != 0 && strncmp(cmd
, "write", 5) != 0 &&
224 strcmp(cmd
, "scrub") != 0 && strcmp(cmd
, "markbad") != 0 &&
225 strcmp(cmd
, "biterr") != 0 &&
226 strcmp(cmd
, "lock") != 0 && strcmp(cmd
, "unlock") != 0 )
229 /* the following commands operate on the current device */
230 if (nand_curr_device
< 0 || nand_curr_device
>= CFG_MAX_NAND_DEVICE
||
231 !nand_info
[nand_curr_device
].name
) {
232 puts("\nno devices available\n");
235 nand
= &nand_info
[nand_curr_device
];
237 if (strcmp(cmd
, "bad") == 0) {
238 printf("\nDevice %d bad blocks:\n", nand_curr_device
);
239 for (off
= 0; off
< nand
->size
; off
+= nand
->erasesize
)
240 if (nand_block_isbad(nand
, off
))
241 printf(" %08x\n", off
);
248 * nand erase [clean] [off size]
250 if (strcmp(cmd
, "erase") == 0 || strcmp(cmd
, "scrub") == 0) {
251 nand_erase_options_t opts
;
252 /* "clean" at index 2 means request to write cleanmarker */
253 int clean
= argc
> 2 && !strcmp("clean", argv
[2]);
254 int o
= clean
? 3 : 2;
255 int scrub
= !strcmp(cmd
, "scrub");
257 printf("\nNAND %s: ", scrub
? "scrub" : "erase");
258 /* skip first two or three arguments, look for offset and size */
259 if (arg_off_size(argc
- o
, argv
+ o
, nand
, &off
, &size
) != 0)
262 memset(&opts
, 0, sizeof(opts
));
270 "scrub option will erase all factory set "
273 "There is no reliable way to recover them.\n"
275 "Use this command only for testing purposes "
278 "are sure of what you are doing!\n"
279 "\nReally scrub this NAND flash? <y/N>\n");
281 if (getc() == 'y' && getc() == '\r') {
284 puts("scrub aborted\n");
288 ret
= nand_erase_opts(nand
, &opts
);
289 printf("%s\n", ret
? "ERROR" : "OK");
291 return ret
== 0 ? 0 : 1;
294 if (strncmp(cmd
, "dump", 4) == 0) {
298 s
= strchr(cmd
, '.');
299 off
= (int)simple_strtoul(argv
[2], NULL
, 16);
301 if (s
!= NULL
&& strcmp(s
, ".oob") == 0)
302 ret
= nand_dump_oob(nand
, off
);
304 ret
= nand_dump(nand
, off
);
306 return ret
== 0 ? 1 : 0;
311 if (strncmp(cmd
, "read", 4) == 0 || strncmp(cmd
, "write", 5) == 0) {
317 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
319 read
= strncmp(cmd
, "read", 4) == 0; /* 1 = read, 0 = write */
320 printf("\nNAND %s: ", read
? "read" : "write");
321 if (arg_off_size(argc
- 3, argv
+ 3, nand
, &off
, &size
) != 0)
324 s
= strchr(cmd
, '.');
326 (!strcmp(s
, ".jffs2") || !strcmp(s
, ".e") || !strcmp(s
, ".i"))) {
329 nand_read_options_t opts
;
330 memset(&opts
, 0, sizeof(opts
));
331 opts
.buffer
= (u_char
*) addr
;
335 ret
= nand_read_opts(nand
, &opts
);
338 nand_write_options_t opts
;
339 memset(&opts
, 0, sizeof(opts
));
340 opts
.buffer
= (u_char
*) addr
;
343 /* opts.forcejffs2 = 1; */
347 ret
= nand_write_opts(nand
, &opts
);
349 } else if (s
!= NULL
&& !strcmp(s
, ".oob")) {
350 /* read out-of-band data */
352 ret
= nand
->read_oob(nand
, off
, size
, &size
,
355 ret
= nand
->write_oob(nand
, off
, size
, &size
,
359 ret
= nand_read(nand
, off
, &size
, (u_char
*)addr
);
361 ret
= nand_write(nand
, off
, &size
, (u_char
*)addr
);
364 printf(" %d bytes %s: %s\n", size
,
365 read
? "read" : "written", ret
? "ERROR" : "OK");
367 return ret
== 0 ? 0 : 1;
370 if (strcmp(cmd
, "markbad") == 0) {
371 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
373 int ret
= nand
->block_markbad(nand
, addr
);
375 printf("block 0x%08lx successfully marked as bad\n",
379 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
384 if (strcmp(cmd
, "biterr") == 0) {
389 if (strcmp(cmd
, "lock") == 0) {
393 if (!strcmp("tight", argv
[2]))
395 if (!strcmp("status", argv
[2]))
400 ulong block_start
= 0;
402 int last_status
= -1;
404 struct nand_chip
*nand_chip
= nand
->priv
;
405 /* check the WP bit */
406 nand_chip
->cmdfunc (nand
, NAND_CMD_STATUS
, -1, -1);
407 printf("device is %swrite protected\n",
408 (nand_chip
->read_byte(nand
) & 0x80 ?
411 for (off
= 0; off
< nand
->size
; off
+= nand
->oobblock
) {
412 int s
= nand_get_lock_status(nand
, off
);
414 /* print message only if status has changed
417 if (off
== nand
->size
- nand
->oobblock
418 || (s
!= last_status
&& off
!= 0)) {
420 printf("%08x - %08x: %8d pages %s%s%s\n",
423 (off
-block_start
)/nand
->oobblock
,
424 ((last_status
& NAND_LOCK_STATUS_TIGHT
) ? "TIGHT " : ""),
425 ((last_status
& NAND_LOCK_STATUS_LOCK
) ? "LOCK " : ""),
426 ((last_status
& NAND_LOCK_STATUS_UNLOCK
) ? "UNLOCK " : ""));
432 if (!nand_lock(nand
, tight
)) {
433 puts("NAND flash successfully locked\n");
435 puts("Error locking NAND flash\n");
442 if (strcmp(cmd
, "unlock") == 0) {
443 if (arg_off_size(argc
- 2, argv
+ 2, nand
, &off
, &size
) < 0)
446 if (!nand_unlock(nand
, off
, size
)) {
447 puts("NAND flash successfully unlocked\n");
449 puts("Error unlocking NAND flash, "
450 "write and erase will probably fail\n");
457 printf("Usage:\n%s\n", cmdtp
->usage
);
461 U_BOOT_CMD(nand
, 5, 1, do_nand
,
462 "nand - NAND sub-system\n",
463 "info - show available NAND devices\n"
464 "nand device [dev] - show or set current device\n"
465 "nand read[.jffs2] - addr off|partition size\n"
466 "nand write[.jffs2] - addr off|partition size - read/write `size' bytes starting\n"
467 " at offset `off' to/from memory address `addr'\n"
468 "nand erase [clean] [off size] - erase `size' bytes from\n"
469 " offset `off' (entire device if not specified)\n"
470 "nand bad - show bad blocks\n"
471 "nand dump[.oob] off - dump page\n"
472 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
473 "nand markbad off - mark bad block at offset (UNSAFE)\n"
474 "nand biterr off - make a bit error at offset (UNSAFE)\n"
475 "nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
476 "nand unlock [offset] [size] - unlock section\n");
478 static int nand_load_image(cmd_tbl_t
*cmdtp
, nand_info_t
*nand
,
479 ulong offset
, ulong addr
, char *cmd
)
486 #if defined(CONFIG_FIT)
490 s
= strchr(cmd
, '.');
492 (!strcmp(s
, ".jffs2") || !strcmp(s
, ".e") || !strcmp(s
, ".i")))
495 printf("\nLoading from %s, offset 0x%lx\n", nand
->name
, offset
);
497 cnt
= nand
->oobblock
;
499 nand_read_options_t opts
;
500 memset(&opts
, 0, sizeof(opts
));
501 opts
.buffer
= (u_char
*) addr
;
503 opts
.offset
= offset
;
505 r
= nand_read_opts(nand
, &opts
);
507 r
= nand_read(nand
, offset
, &cnt
, (u_char
*) addr
);
511 puts("** Read error\n");
512 show_boot_progress (-56);
515 show_boot_progress (56);
517 switch (genimg_get_format ((void *)addr
)) {
518 case IMAGE_FORMAT_LEGACY
:
519 hdr
= (image_header_t
*)addr
;
521 show_boot_progress (57);
522 image_print_contents (hdr
);
524 cnt
= image_get_image_size (hdr
);
526 #if defined(CONFIG_FIT)
527 case IMAGE_FORMAT_FIT
:
528 fit_hdr
= (const void *)addr
;
529 if (!fit_check_format (fit_hdr
)) {
530 show_boot_progress (-150);
531 puts ("** Bad FIT image format\n");
534 show_boot_progress (151);
535 puts ("Fit image detected...\n");
537 cnt
= fit_get_size (fit_hdr
);
541 show_boot_progress (-57);
542 puts ("** Unknown image type\n");
547 nand_read_options_t opts
;
548 memset(&opts
, 0, sizeof(opts
));
549 opts
.buffer
= (u_char
*) addr
;
551 opts
.offset
= offset
;
553 r
= nand_read_opts(nand
, &opts
);
555 r
= nand_read(nand
, offset
, &cnt
, (u_char
*) addr
);
559 puts("** Read error\n");
560 show_boot_progress (-58);
563 show_boot_progress (58);
565 #if defined(CONFIG_FIT)
566 /* This cannot be done earlier, we need complete FIT image in RAM first */
567 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
)
568 fit_print_contents ((const void *)addr
);
571 /* Loading ok, update default load address */
575 /* Check if we should attempt an auto-start */
576 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
, "yes") == 0)) {
578 extern int do_bootm(cmd_tbl_t
*, int, int, char *[]);
581 local_args
[1] = NULL
;
583 printf("Automatic boot of image at addr 0x%08lx ...\n", addr
);
585 do_bootm(cmdtp
, 0, 1, local_args
);
591 int do_nandboot(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
593 char *boot_device
= NULL
;
595 ulong addr
, offset
= 0;
596 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
597 struct mtd_device
*dev
;
598 struct part_info
*part
;
602 char *p
= (argc
== 2) ? argv
[1] : argv
[2];
603 if (!(str2long(p
, &addr
)) && (mtdparts_init() == 0) &&
604 (find_dev_and_part(p
, &dev
, &pnum
, &part
) == 0)) {
605 if (dev
->id
->type
!= MTD_DEV_TYPE_NAND
) {
606 puts("Not a NAND device\n");
612 addr
= simple_strtoul(argv
[1], NULL
, 16);
614 addr
= CFG_LOAD_ADDR
;
615 return nand_load_image(cmdtp
, &nand_info
[dev
->id
->num
],
616 part
->offset
, addr
, argv
[0]);
621 show_boot_progress(52);
624 addr
= CFG_LOAD_ADDR
;
625 boot_device
= getenv("bootdevice");
628 addr
= simple_strtoul(argv
[1], NULL
, 16);
629 boot_device
= getenv("bootdevice");
632 addr
= simple_strtoul(argv
[1], NULL
, 16);
633 boot_device
= argv
[2];
636 addr
= simple_strtoul(argv
[1], NULL
, 16);
637 boot_device
= argv
[2];
638 offset
= simple_strtoul(argv
[3], NULL
, 16);
641 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
644 printf("Usage:\n%s\n", cmdtp
->usage
);
645 show_boot_progress(-53);
649 show_boot_progress(53);
651 puts("\n** No boot device **\n");
652 show_boot_progress(-54);
655 show_boot_progress(54);
657 idx
= simple_strtoul(boot_device
, NULL
, 16);
659 if (idx
< 0 || idx
>= CFG_MAX_NAND_DEVICE
|| !nand_info
[idx
].name
) {
660 printf("\n** Device %d not available\n", idx
);
661 show_boot_progress(-55);
664 show_boot_progress(55);
666 return nand_load_image(cmdtp
, &nand_info
[idx
], offset
, addr
, argv
[0]);
669 U_BOOT_CMD(nboot
, 4, 1, do_nandboot
,
670 "nboot - boot from NAND device\n",
671 "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
675 #else /* CFG_NAND_LEGACY */
678 * Legacy NAND support - to be phased out
684 #include <watchdog.h>
686 #ifdef CONFIG_show_boot_progress
687 # include <status_led.h>
688 # define show_boot_progress(arg) show_boot_progress(arg)
690 # define show_boot_progress(arg)
693 #if defined(CONFIG_CMD_NAND)
694 #include <linux/mtd/nand_legacy.h>
696 #include <linux/mtd/nand_ids.h>
697 #include <jffs2/jffs2.h>
700 #ifdef CONFIG_OMAP1510
701 void archflashwp(void *archdata
, int wp
);
704 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
709 /* ****************** WARNING *********************
710 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
711 * erase (or at least attempt to erase) blocks that are marked
712 * bad. This can be very handy if you are _sure_ that the block
713 * is OK, say because you marked a good block bad to test bad
714 * block handling and you are done testing, or if you have
715 * accidentally marked blocks bad.
717 * Erasing factory marked bad blocks is a _bad_ idea. If the
718 * erase succeeds there is no reliable way to find them again,
719 * and attempting to program or erase bad blocks can affect
720 * the data in _other_ (good) blocks.
722 #define ALLOW_ERASE_BAD_DEBUG 0
724 #define CONFIG_MTD_NAND_ECC /* enable ECC */
725 #define CONFIG_MTD_NAND_ECC_JFFS2
727 /* bits for nand_legacy_rw() `cmd'; or together as needed */
728 #define NANDRW_READ 0x01
729 #define NANDRW_WRITE 0x00
730 #define NANDRW_JFFS2 0x02
731 #define NANDRW_JFFS2_SKIP 0x04
734 * Imports from nand_legacy.c
736 extern struct nand_chip nand_dev_desc
[CFG_MAX_NAND_DEVICE
];
737 extern int curr_device
;
738 extern int nand_legacy_erase(struct nand_chip
*nand
, size_t ofs
,
739 size_t len
, int clean
);
740 extern int nand_legacy_rw(struct nand_chip
*nand
, int cmd
, size_t start
,
741 size_t len
, size_t *retlen
, u_char
*buf
);
742 extern void nand_print(struct nand_chip
*nand
);
743 extern void nand_print_bad(struct nand_chip
*nand
);
744 extern int nand_read_oob(struct nand_chip
*nand
, size_t ofs
,
745 size_t len
, size_t *retlen
, u_char
*buf
);
746 extern int nand_write_oob(struct nand_chip
*nand
, size_t ofs
,
747 size_t len
, size_t *retlen
, const u_char
*buf
);
750 int do_nand (cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
757 printf ("Usage:\n%s\n", cmdtp
->usage
);
760 if (strcmp (argv
[1], "info") == 0) {
765 for (i
= 0; i
< CFG_MAX_NAND_DEVICE
; ++i
) {
766 if (nand_dev_desc
[i
].ChipID
==
768 continue; /* list only known devices */
769 printf ("Device %d: ", i
);
770 nand_print (&nand_dev_desc
[i
]);
774 } else if (strcmp (argv
[1], "device") == 0) {
775 if ((curr_device
< 0)
776 || (curr_device
>= CFG_MAX_NAND_DEVICE
)) {
777 puts ("\nno devices available\n");
780 printf ("\nDevice %d: ", curr_device
);
781 nand_print (&nand_dev_desc
[curr_device
]);
784 } else if (strcmp (argv
[1], "bad") == 0) {
785 if ((curr_device
< 0)
786 || (curr_device
>= CFG_MAX_NAND_DEVICE
)) {
787 puts ("\nno devices available\n");
790 printf ("\nDevice %d bad blocks:\n", curr_device
);
791 nand_print_bad (&nand_dev_desc
[curr_device
]);
795 printf ("Usage:\n%s\n", cmdtp
->usage
);
798 if (strcmp (argv
[1], "device") == 0) {
799 int dev
= (int) simple_strtoul (argv
[2], NULL
, 10);
801 printf ("\nDevice %d: ", dev
);
802 if (dev
>= CFG_MAX_NAND_DEVICE
) {
803 puts ("unknown device\n");
806 nand_print (&nand_dev_desc
[dev
]);
807 /*nand_print (dev); */
809 if (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
) {
815 puts ("... is now current device\n");
818 } else if (strcmp (argv
[1], "erase") == 0
819 && strcmp (argv
[2], "clean") == 0) {
820 struct nand_chip
*nand
= &nand_dev_desc
[curr_device
];
822 ulong size
= nand
->totlen
;
825 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device
, off
, size
);
827 ret
= nand_legacy_erase (nand
, off
, size
, 1);
829 printf ("%s\n", ret
? "ERROR" : "OK");
834 printf ("Usage:\n%s\n", cmdtp
->usage
);
837 /* at least 4 args */
839 if (strncmp (argv
[1], "read", 4) == 0 ||
840 strncmp (argv
[1], "write", 5) == 0) {
841 ulong addr
= simple_strtoul (argv
[2], NULL
, 16);
842 off_t off
= simple_strtoul (argv
[3], NULL
, 16);
843 size_t size
= simple_strtoul (argv
[4], NULL
, 16);
844 int cmd
= (strncmp (argv
[1], "read", 4) == 0) ?
845 NANDRW_READ
: NANDRW_WRITE
;
848 char *cmdtail
= strchr (argv
[1], '.');
850 if (cmdtail
&& !strncmp (cmdtail
, ".oob", 2)) {
851 /* read out-of-band data */
852 if (cmd
& NANDRW_READ
) {
853 ret
= nand_read_oob (nand_dev_desc
+ curr_device
,
857 ret
= nand_write_oob (nand_dev_desc
+ curr_device
,
862 } else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2", 2))
863 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
864 else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2s", 2)) {
865 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
866 if (cmd
& NANDRW_READ
)
867 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
870 /* need ".e" same as ".j" for compatibility with older units */
871 else if (cmdtail
&& !strcmp (cmdtail
, ".e"))
872 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
874 #ifdef CFG_NAND_SKIP_BAD_DOT_I
875 /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
876 /* ".i" for image -> read skips bad block (no 0xff) */
877 else if (cmdtail
&& !strcmp (cmdtail
, ".i")) {
878 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
879 if (cmd
& NANDRW_READ
)
880 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
882 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
884 printf ("Usage:\n%s\n", cmdtp
->usage
);
888 printf ("\nNAND %s: device %d offset %ld, size %ld ...\n",
889 (cmd
& NANDRW_READ
) ? "read" : "write",
890 curr_device
, off
, size
);
892 ret
= nand_legacy_rw (nand_dev_desc
+ curr_device
,
897 printf (" %d bytes %s: %s\n", total
,
898 (cmd
& NANDRW_READ
) ? "read" : "written",
899 ret
? "ERROR" : "OK");
902 } else if (strcmp (argv
[1], "erase") == 0 &&
903 (argc
== 4 || strcmp ("clean", argv
[2]) == 0)) {
904 int clean
= argc
== 5;
906 simple_strtoul (argv
[2 + clean
], NULL
, 16);
908 simple_strtoul (argv
[3 + clean
], NULL
, 16);
911 printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
912 curr_device
, off
, size
);
914 ret
= nand_legacy_erase (nand_dev_desc
+ curr_device
,
917 printf ("%s\n", ret
? "ERROR" : "OK");
921 printf ("Usage:\n%s\n", cmdtp
->usage
);
931 "nand - legacy NAND sub-system\n",
932 "info - show available NAND devices\n"
933 "nand device [dev] - show or set current device\n"
934 "nand read[.jffs2[s]] addr off size\n"
935 "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
936 " at offset `off' to/from memory address `addr'\n"
937 "nand erase [clean] [off size] - erase `size' bytes from\n"
938 " offset `off' (entire device if not specified)\n"
939 "nand bad - show bad blocks\n"
940 "nand read.oob addr off size - read out-of-band data\n"
941 "nand write.oob addr off size - read out-of-band data\n"
944 int do_nandboot (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
946 char *boot_device
= NULL
;
954 #if defined(CONFIG_FIT)
958 show_boot_progress (52);
961 addr
= CFG_LOAD_ADDR
;
962 boot_device
= getenv ("bootdevice");
965 addr
= simple_strtoul(argv
[1], NULL
, 16);
966 boot_device
= getenv ("bootdevice");
969 addr
= simple_strtoul(argv
[1], NULL
, 16);
970 boot_device
= argv
[2];
973 addr
= simple_strtoul(argv
[1], NULL
, 16);
974 boot_device
= argv
[2];
975 offset
= simple_strtoul(argv
[3], NULL
, 16);
978 printf ("Usage:\n%s\n", cmdtp
->usage
);
979 show_boot_progress (-53);
983 show_boot_progress (53);
985 puts ("\n** No boot device **\n");
986 show_boot_progress (-54);
989 show_boot_progress (54);
991 dev
= simple_strtoul(boot_device
, &ep
, 16);
993 if ((dev
>= CFG_MAX_NAND_DEVICE
) ||
994 (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
)) {
995 printf ("\n** Device %d not available\n", dev
);
996 show_boot_progress (-55);
999 show_boot_progress (55);
1001 printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1002 dev
, nand_dev_desc
[dev
].name
, nand_dev_desc
[dev
].IO_ADDR
,
1005 if (nand_legacy_rw (nand_dev_desc
+ dev
, NANDRW_READ
, offset
,
1006 SECTORSIZE
, NULL
, (u_char
*)addr
)) {
1007 printf ("** Read error on %d\n", dev
);
1008 show_boot_progress (-56);
1011 show_boot_progress (56);
1013 switch (genimg_get_format ((void *)addr
)) {
1014 case IMAGE_FORMAT_LEGACY
:
1015 hdr
= (image_header_t
*)addr
;
1016 image_print_contents (hdr
);
1018 cnt
= image_get_image_size (hdr
);
1021 #if defined(CONFIG_FIT)
1022 case IMAGE_FORMAT_FIT
:
1023 fit_hdr
= (const void *)addr
;
1024 if (!fit_check_format (fit_hdr
)) {
1025 show_boot_progress (-150);
1026 puts ("** Bad FIT image format\n");
1029 show_boot_progress (151);
1030 puts ("Fit image detected...\n");
1032 cnt
= fit_get_size (fit_hdr
);
1036 show_boot_progress (-57);
1037 puts ("** Unknown image type\n");
1040 show_boot_progress (57);
1042 if (nand_legacy_rw (nand_dev_desc
+ dev
, NANDRW_READ
,
1043 offset
+ SECTORSIZE
, cnt
, NULL
,
1044 (u_char
*)(addr
+SECTORSIZE
))) {
1045 printf ("** Read error on %d\n", dev
);
1046 show_boot_progress (-58);
1049 show_boot_progress (58);
1051 #if defined(CONFIG_FIT)
1052 /* This cannot be done earlier, we need complete FIT image in RAM first */
1053 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
)
1054 fit_print_contents ((const void *)addr
);
1057 /* Loading ok, update default load address */
1061 /* Check if we should attempt an auto-start */
1062 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
,"yes") == 0)) {
1063 char *local_args
[2];
1064 extern int do_bootm (cmd_tbl_t
*, int, int, char *[]);
1066 local_args
[0] = argv
[0];
1067 local_args
[1] = NULL
;
1069 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr
);
1071 do_bootm (cmdtp
, 0, 1, local_args
);
1078 nboot
, 4, 1, do_nandboot
,
1079 "nboot - boot from NAND device\n",
1085 #endif /* CFG_NAND_LEGACY */