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 extern nand_info_t nand_info
[]; /* info for NAND chips */
42 static int nand_dump_oob(nand_info_t
*nand
, ulong off
)
47 static int nand_dump(nand_info_t
*nand
, ulong off
)
52 buf
= malloc(nand
->oobblock
+ nand
->oobsize
);
54 puts("No memory for page buffer\n");
57 off
&= ~(nand
->oobblock
- 1);
58 i
= nand_read_raw(nand
, buf
, off
, nand
->oobblock
, nand
->oobsize
);
60 printf("Error (%d) reading page %08x\n", i
, off
);
64 printf("Page %08x dump:\n", off
);
65 i
= nand
->oobblock
>> 4; p
= buf
;
67 printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x"
68 " %02x %02x %02x %02x %02x %02x %02x %02x\n",
69 p
[0], p
[1], p
[2], p
[3], p
[4], p
[5], p
[6], p
[7],
70 p
[8], p
[9], p
[10], p
[11], p
[12], p
[13], p
[14], p
[15]);
74 i
= nand
->oobsize
>> 3;
76 printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
77 p
[0], p
[1], p
[2], p
[3], p
[4], p
[5], p
[6], p
[7]);
85 /* ------------------------------------------------------------------------- */
87 static inline int str2long(char *p
, ulong
*num
)
91 *num
= simple_strtoul(p
, &endptr
, 16);
92 return (*p
!= '\0' && *endptr
== '\0') ? 1 : 0;
96 arg_off_size(int argc
, char *argv
[], nand_info_t
*nand
, ulong
*off
, ulong
*size
, int net
)
98 int idx
= nand_curr_device
;
99 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
100 struct mtd_device
*dev
;
101 struct part_info
*part
;
104 if (argc
>= 1 && !(str2long(argv
[0], off
))) {
105 if ((mtdparts_init() == 0) &&
106 (find_dev_and_part(argv
[0], &dev
, &pnum
, &part
) == 0)) {
107 if (dev
->id
->type
!= MTD_DEV_TYPE_NAND
) {
108 puts("not a NAND device\n");
113 if (!(str2long(argv
[1], size
))) {
114 printf("'%s' is not a number\n", argv
[1]);
117 if (*size
> part
->size
) {
119 *size
= nand_net_part_size(part
);
125 *size
= nand_net_part_size(part
);
130 *nand
= nand_info
[idx
];
137 if (!(str2long(argv
[0], off
))) {
138 printf("'%s' is not a number\n", argv
[0]);
146 if (!(str2long(argv
[1], size
))) {
147 printf("'%s' is not a number\n", argv
[1]);
151 *size
= nand
->size
- *off
;
154 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
157 printf("device %d ", idx
);
158 if (*size
== nand
->size
)
159 puts("whole chip\n");
161 printf("offset 0x%x, size 0x%x\n", *off
, *size
);
170 s
= getenv("dontask");
171 if (s
&& (s
[0] =='y' || s
[0] == 'Y') && !s
[1])
174 if (c
!= 'y' && c
!= 'Y')
177 return c
== '\r' || c
== '\n';
180 int do_nand(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
183 ulong addr
, off
, size
;
186 #ifdef CFG_NAND_QUIET
187 int quiet
= CFG_NAND_QUIET
;
191 const char *quiet_str
= getenv("quiet");
193 /* at least two arguments please */
198 quiet
= simple_strtoul(quiet_str
, NULL
, 0) != 0;
202 if (strcmp(cmd
, "info") == 0) {
205 for (i
= 0; i
< CFG_MAX_NAND_DEVICE
; i
++) {
206 if (nand_info
[i
].name
)
207 printf("Device %d: %s, page size %lu, "
208 "sector size %lu KiB\n",
209 i
, nand_info
[i
].name
,
210 nand_info
[i
].oobblock
,
211 nand_info
[i
].erasesize
>> 10);
216 if (strcmp(cmd
, "device") == 0) {
219 if ((nand_curr_device
< 0) ||
220 (nand_curr_device
>= CFG_MAX_NAND_DEVICE
))
221 puts("\nno devices available\n");
223 printf("\nDevice %d: %s\n", nand_curr_device
,
224 nand_info
[nand_curr_device
].name
);
227 dev
= (int)simple_strtoul(argv
[2], NULL
, 10);
228 if (dev
< 0 || dev
>= CFG_MAX_NAND_DEVICE
|| !nand_info
[dev
].name
) {
229 puts("No such device\n");
232 printf("Device %d: %s", dev
, nand_info
[dev
].name
);
233 puts("... is now current device\n");
234 nand_curr_device
= dev
;
236 #ifdef CFG_NAND_SELECT_DEVICE
238 * Select the chip in the board/cpu specific driver
240 board_nand_select_device(nand_info
[dev
].priv
, dev
);
246 if (strcmp(cmd
, "bad") != 0 && strcmp(cmd
, "erase") != 0 &&
247 strncmp(cmd
, "dump", 4) != 0 &&
248 strncmp(cmd
, "read", 4) != 0 && strncmp(cmd
, "write", 5) != 0 &&
249 strcmp(cmd
, "scrub") != 0 && strcmp(cmd
, "markbad") != 0 &&
250 strcmp(cmd
, "biterr") != 0 &&
251 strcmp(cmd
, "lock") != 0 && strcmp(cmd
, "unlock") != 0 &&
252 strcmp(cmd
, "createbbt") != 0 )
255 /* the following commands operate on the current device */
256 if (nand_curr_device
< 0 || nand_curr_device
>= CFG_MAX_NAND_DEVICE
||
257 !nand_info
[nand_curr_device
].name
) {
258 puts("\nno devices available\n");
261 nand
= &nand_info
[nand_curr_device
];
263 if (strcmp(cmd
, "bad") == 0) {
264 printf("\nDevice %d bad blocks:\n", nand_curr_device
);
265 for (off
= 0; off
< nand
->size
; off
+= nand
->erasesize
)
266 if (nand_block_isbad(nand
, off
))
267 printf(" %08x\n", off
);
274 * nand erase [clean] [off size]
276 if (strcmp(cmd
, "erase") == 0 || strcmp(cmd
, "scrub") == 0) {
277 nand_erase_options_t opts
;
278 /* "clean" at index 2 means request to write cleanmarker */
279 int clean
= argc
> 2 && !strcmp("clean", argv
[2]);
280 int o
= clean
? 3 : 2;
281 int scrub
= !strcmp(cmd
, "scrub");
283 printf("\nNAND %s: ", scrub
? "scrub" : "erase");
284 /* skip first two or three arguments, look for offset and size */
285 if (arg_off_size(argc
- o
, argv
+ o
, nand
, &off
, &size
, 0) != 0)
288 memset(&opts
, 0, sizeof(opts
));
296 "scrub option will erase all factory set "
299 "There is no reliable way to recover them.\n"
301 "Use this command only for testing purposes "
304 "are sure of what you are doing!\n"
305 "\nReally scrub this NAND flash? <y/N>\n");
310 puts("scrub aborted\n");
315 if (opts
.length
== nand
->size
) {
316 puts("Really erase everything ? <y/N>\n");
318 puts("erase aborted\n");
324 ret
= nand_erase_opts(nand
, &opts
);
325 printf("%s\n", ret
? "ERROR" : "OK");
327 return ret
== 0 ? 0 : 1;
330 if (strncmp(cmd
, "dump", 4) == 0) {
334 s
= strchr(cmd
, '.');
335 off
= (int)simple_strtoul(argv
[2], NULL
, 16);
337 if (s
!= NULL
&& strcmp(s
, ".oob") == 0)
338 ret
= nand_dump_oob(nand
, off
);
340 ret
= nand_dump(nand
, off
);
342 return ret
== 0 ? 1 : 0;
347 if (strncmp(cmd
, "read", 4) == 0 || strncmp(cmd
, "write", 5) == 0) {
353 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
355 read
= strncmp(cmd
, "read", 4) == 0; /* 1 = read, 0 = write */
356 printf("\nNAND %s: ", read
? "read" : "write");
357 if (arg_off_size(argc
- 3, argv
+ 3, nand
, &off
, &size
, 1) != 0)
360 s
= strchr(cmd
, '.');
362 (!strcmp(s
, ".jffs2") || !strcmp(s
, ".e") || !strcmp(s
, ".i"))) {
365 nand_read_options_t opts
;
366 memset(&opts
, 0, sizeof(opts
));
367 opts
.buffer
= (u_char
*) addr
;
371 ret
= nand_read_opts(nand
, &opts
);
374 nand_write_options_t opts
;
375 memset(&opts
, 0, sizeof(opts
));
376 opts
.buffer
= (u_char
*) addr
;
379 /* opts.forcejffs2 = 1; */
383 ret
= nand_write_opts(nand
, &opts
);
385 } else if (!read
&& s
!= NULL
&&
386 (!strcmp(s
, ".yaffs") || !strcmp(s
, ".yaffs1"))) {
387 nand_write_options_t opts
;
388 memset(&opts
, 0, sizeof(opts
));
389 opts
.buffer
= (u_char
*) addr
;
399 ret
= nand_write_opts(nand
, &opts
);
400 } else if (s
!= NULL
&& !strcmp(s
, ".oob")) {
401 /* read out-of-band data */
403 ret
= nand
->read_oob(nand
, off
, size
, (size_t *) &size
,
406 ret
= nand
->write_oob(nand
, off
, size
, (size_t *) &size
,
410 ret
= nand_read(nand
, off
, &size
, (u_char
*)addr
);
412 ret
= nand_write(nand
, off
, &size
, (u_char
*)addr
);
415 printf(" %d bytes %s: %s\n", size
,
416 read
? "read" : "written", ret
? "ERROR" : "OK");
418 return ret
== 0 ? 0 : 1;
421 if (strcmp(cmd
, "markbad") == 0) {
422 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
424 int ret
= nand
->block_markbad(nand
, addr
);
426 printf("block 0x%08lx successfully marked as bad\n",
430 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
435 if (strcmp(cmd
, "biterr") == 0) {
440 if (strcmp(cmd
, "lock") == 0) {
444 if (!strcmp("tight", argv
[2]))
446 if (!strcmp("status", argv
[2]))
451 ulong block_start
= 0;
453 int last_status
= -1;
455 struct nand_chip
*nand_chip
= nand
->priv
;
456 /* check the WP bit */
457 nand_chip
->cmdfunc (nand
, NAND_CMD_STATUS
, -1, -1);
458 printf("device is %swrite protected\n",
459 (nand_chip
->read_byte(nand
) & 0x80 ?
462 for (off
= 0; off
< nand
->size
; off
+= nand
->oobblock
) {
463 int s
= nand_get_lock_status(nand
, off
);
465 /* print message only if status has changed
468 if (off
== nand
->size
- nand
->oobblock
469 || (s
!= last_status
&& off
!= 0)) {
471 printf("%08x - %08x: %8d pages %s%s%s\n",
474 (off
-block_start
)/nand
->oobblock
,
475 ((last_status
& NAND_LOCK_STATUS_TIGHT
) ? "TIGHT " : ""),
476 ((last_status
& NAND_LOCK_STATUS_LOCK
) ? "LOCK " : ""),
477 ((last_status
& NAND_LOCK_STATUS_UNLOCK
) ? "UNLOCK " : ""));
483 if (!nand_lock(nand
, tight
)) {
484 puts("NAND flash successfully locked\n");
486 puts("Error locking NAND flash\n");
493 if (strcmp(cmd
, "unlock") == 0) {
494 if (arg_off_size(argc
- 2, argv
+ 2, nand
, &off
, &size
, 0) < 0)
497 if (!nand_unlock(nand
, off
, size
)) {
498 puts("NAND flash successfully unlocked\n");
500 puts("Error unlocking NAND flash, "
501 "write and erase will probably fail\n");
507 if (strcmp(cmd
, "createbbt") == 0) {
508 struct nand_chip
*nand_chip
= nand
->priv
;
509 nand_erase_options_t opts
;
511 puts("Create BBT and erase everything ? <y/N>\n");
513 puts("createbbt aborted\n");
516 memset(&opts
, 0, sizeof(opts
));
517 opts
.length
= nand
->size
;
518 if (nand_erase_opts(nand
, &opts
)) {
519 puts("Erase failed\n");
522 nand_chip
->options
&= ~NAND_DONT_CREATE_BBT
;
523 puts("Creating BBT. Please wait ...");
524 if (nand_default_bbt(nand
)) {
535 printf("Usage:\n%s\n", cmdtp
->usage
);
539 U_BOOT_CMD(nand
, 5, 1, do_nand
,
540 "nand - NAND sub-system\n",
541 "info - show available NAND devices\n"
542 "nand device [dev] - show or set current device\n"
543 "nand read[.jffs2] - addr off|partition size\n"
544 "nand write[.jffs2] - addr off|partition size - read/write `size' bytes starting\n"
545 " at offset `off' to/from memory address `addr'\n"
546 "nand write[.yaffs[1]] - addr off|partiton size - read/write `size' byte yaffs image\n"
547 " starting at offset `off' to/from memory address `addr' (.yaffs1 for 512+16 NAND)\n"
548 "nand erase [clean] [off size] - erase `size' bytes from\n"
549 " offset `off' (entire device if not specified)\n"
550 "nand bad - show bad blocks\n"
551 "nand dump[.oob] off - dump page\n"
552 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
553 "nand markbad off - mark bad block at offset (UNSAFE)\n"
554 "nand biterr off - make a bit error at offset (UNSAFE)\n"
555 "nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
556 "nand unlock [offset] [size] - unlock section\n"
557 "nand createbbt - create bad block table\n");
559 static int nand_load_image(cmd_tbl_t
*cmdtp
, nand_info_t
*nand
,
560 ulong offset
, ulong addr
, char *cmd
)
567 #if defined(CONFIG_FIT)
571 s
= strchr(cmd
, '.');
573 (!strcmp(s
, ".jffs2") || !strcmp(s
, ".e") || !strcmp(s
, ".i")))
576 printf("\nLoading from %s, offset 0x%lx\n", nand
->name
, offset
);
578 cnt
= nand
->oobblock
;
580 nand_read_options_t opts
;
581 memset(&opts
, 0, sizeof(opts
));
582 opts
.buffer
= (u_char
*) addr
;
584 opts
.offset
= offset
;
586 r
= nand_read_opts(nand
, &opts
);
588 r
= nand_read(nand
, offset
, &cnt
, (u_char
*) addr
);
592 puts("** Read error\n");
593 show_boot_progress (-56);
596 show_boot_progress (56);
598 switch (genimg_get_format ((void *)addr
)) {
599 case IMAGE_FORMAT_LEGACY
:
600 hdr
= (image_header_t
*)addr
;
602 show_boot_progress (57);
603 image_print_contents (hdr
);
605 cnt
= image_get_image_size (hdr
);
607 #if defined(CONFIG_FIT)
608 case IMAGE_FORMAT_FIT
:
609 fit_hdr
= (const void *)addr
;
610 if (!fit_check_format (fit_hdr
)) {
611 show_boot_progress (-150);
612 puts ("** Bad FIT image format\n");
615 show_boot_progress (151);
616 puts ("Fit image detected...\n");
618 cnt
= fit_get_size (fit_hdr
);
622 show_boot_progress (-57);
623 puts ("** Unknown image type\n");
628 nand_read_options_t opts
;
629 memset(&opts
, 0, sizeof(opts
));
630 opts
.buffer
= (u_char
*) addr
;
632 opts
.offset
= offset
;
634 r
= nand_read_opts(nand
, &opts
);
636 r
= nand_read(nand
, offset
, &cnt
, (u_char
*) addr
);
640 puts("** Read error\n");
641 show_boot_progress (-58);
644 show_boot_progress (58);
646 #if defined(CONFIG_FIT)
647 /* This cannot be done earlier, we need complete FIT image in RAM first */
648 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
)
649 fit_print_contents ((const void *)addr
);
652 /* Loading ok, update default load address */
656 /* Check if we should attempt an auto-start */
657 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
, "yes") == 0)) {
659 extern int do_bootm(cmd_tbl_t
*, int, int, char *[]);
662 local_args
[1] = NULL
;
664 printf("Automatic boot of image at addr 0x%08lx ...\n", addr
);
666 do_bootm(cmdtp
, 0, 1, local_args
);
672 int do_nandboot(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
674 char *boot_device
= NULL
;
676 ulong addr
, offset
= 0;
677 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
678 struct mtd_device
*dev
;
679 struct part_info
*part
;
683 char *p
= (argc
== 2) ? argv
[1] : argv
[2];
684 if (!(str2long(p
, &addr
)) && (mtdparts_init() == 0) &&
685 (find_dev_and_part(p
, &dev
, &pnum
, &part
) == 0)) {
686 if (dev
->id
->type
!= MTD_DEV_TYPE_NAND
) {
687 puts("Not a NAND device\n");
693 addr
= simple_strtoul(argv
[1], NULL
, 16);
695 addr
= CFG_LOAD_ADDR
;
696 return nand_load_image(cmdtp
, &nand_info
[dev
->id
->num
],
697 part
->offset
, addr
, argv
[0]);
702 show_boot_progress(52);
705 addr
= CFG_LOAD_ADDR
;
706 boot_device
= getenv("bootdevice");
709 addr
= simple_strtoul(argv
[1], NULL
, 16);
710 boot_device
= getenv("bootdevice");
713 addr
= simple_strtoul(argv
[1], NULL
, 16);
714 boot_device
= argv
[2];
717 addr
= simple_strtoul(argv
[1], NULL
, 16);
718 boot_device
= argv
[2];
719 offset
= simple_strtoul(argv
[3], NULL
, 16);
722 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
725 printf("Usage:\n%s\n", cmdtp
->usage
);
726 show_boot_progress(-53);
730 show_boot_progress(53);
732 puts("\n** No boot device **\n");
733 show_boot_progress(-54);
736 show_boot_progress(54);
738 idx
= simple_strtoul(boot_device
, NULL
, 16);
740 if (idx
< 0 || idx
>= CFG_MAX_NAND_DEVICE
|| !nand_info
[idx
].name
) {
741 printf("\n** Device %d not available\n", idx
);
742 show_boot_progress(-55);
745 show_boot_progress(55);
747 return nand_load_image(cmdtp
, &nand_info
[idx
], offset
, addr
, argv
[0]);
750 U_BOOT_CMD(nboot
, 4, 1, do_nandboot
,
751 "nboot - boot from NAND device\n",
752 "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
756 #else /* CFG_NAND_LEGACY */
759 * Legacy NAND support - to be phased out
765 #include <watchdog.h>
767 #ifdef CONFIG_show_boot_progress
768 # include <status_led.h>
769 # define show_boot_progress(arg) show_boot_progress(arg)
771 # define show_boot_progress(arg)
774 #if defined(CONFIG_CMD_NAND)
775 #include <linux/mtd/nand_legacy.h>
777 #include <linux/mtd/nand_ids.h>
778 #include <jffs2/jffs2.h>
781 #ifdef CONFIG_OMAP1510
782 void archflashwp(void *archdata
, int wp
);
785 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
790 /* ****************** WARNING *********************
791 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
792 * erase (or at least attempt to erase) blocks that are marked
793 * bad. This can be very handy if you are _sure_ that the block
794 * is OK, say because you marked a good block bad to test bad
795 * block handling and you are done testing, or if you have
796 * accidentally marked blocks bad.
798 * Erasing factory marked bad blocks is a _bad_ idea. If the
799 * erase succeeds there is no reliable way to find them again,
800 * and attempting to program or erase bad blocks can affect
801 * the data in _other_ (good) blocks.
803 #define ALLOW_ERASE_BAD_DEBUG 0
805 #define CONFIG_MTD_NAND_ECC /* enable ECC */
806 #define CONFIG_MTD_NAND_ECC_JFFS2
808 /* bits for nand_legacy_rw() `cmd'; or together as needed */
809 #define NANDRW_READ 0x01
810 #define NANDRW_WRITE 0x00
811 #define NANDRW_JFFS2 0x02
812 #define NANDRW_JFFS2_SKIP 0x04
815 * Imports from nand_legacy.c
817 extern struct nand_chip nand_dev_desc
[CFG_MAX_NAND_DEVICE
];
818 extern int curr_device
;
819 extern int nand_legacy_erase(struct nand_chip
*nand
, size_t ofs
,
820 size_t len
, int clean
);
821 extern int nand_legacy_rw(struct nand_chip
*nand
, int cmd
, size_t start
,
822 size_t len
, size_t *retlen
, u_char
*buf
);
823 extern void nand_print(struct nand_chip
*nand
);
824 extern void nand_print_bad(struct nand_chip
*nand
);
825 extern int nand_read_oob(struct nand_chip
*nand
, size_t ofs
,
826 size_t len
, size_t *retlen
, u_char
*buf
);
827 extern int nand_write_oob(struct nand_chip
*nand
, size_t ofs
,
828 size_t len
, size_t *retlen
, const u_char
*buf
);
831 int do_nand (cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
838 printf ("Usage:\n%s\n", cmdtp
->usage
);
841 if (strcmp (argv
[1], "info") == 0) {
846 for (i
= 0; i
< CFG_MAX_NAND_DEVICE
; ++i
) {
847 if (nand_dev_desc
[i
].ChipID
==
849 continue; /* list only known devices */
850 printf ("Device %d: ", i
);
851 nand_print (&nand_dev_desc
[i
]);
855 } else if (strcmp (argv
[1], "device") == 0) {
856 if ((curr_device
< 0)
857 || (curr_device
>= CFG_MAX_NAND_DEVICE
)) {
858 puts ("\nno devices available\n");
861 printf ("\nDevice %d: ", curr_device
);
862 nand_print (&nand_dev_desc
[curr_device
]);
865 } else if (strcmp (argv
[1], "bad") == 0) {
866 if ((curr_device
< 0)
867 || (curr_device
>= CFG_MAX_NAND_DEVICE
)) {
868 puts ("\nno devices available\n");
871 printf ("\nDevice %d bad blocks:\n", curr_device
);
872 nand_print_bad (&nand_dev_desc
[curr_device
]);
876 printf ("Usage:\n%s\n", cmdtp
->usage
);
879 if (strcmp (argv
[1], "device") == 0) {
880 int dev
= (int) simple_strtoul (argv
[2], NULL
, 10);
882 printf ("\nDevice %d: ", dev
);
883 if (dev
>= CFG_MAX_NAND_DEVICE
) {
884 puts ("unknown device\n");
887 nand_print (&nand_dev_desc
[dev
]);
888 /*nand_print (dev); */
890 if (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
) {
896 puts ("... is now current device\n");
899 } else if (strcmp (argv
[1], "erase") == 0
900 && strcmp (argv
[2], "clean") == 0) {
901 struct nand_chip
*nand
= &nand_dev_desc
[curr_device
];
903 ulong size
= nand
->totlen
;
906 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device
, off
, size
);
908 ret
= nand_legacy_erase (nand
, off
, size
, 1);
910 printf ("%s\n", ret
? "ERROR" : "OK");
915 printf ("Usage:\n%s\n", cmdtp
->usage
);
918 /* at least 4 args */
920 if (strncmp (argv
[1], "read", 4) == 0 ||
921 strncmp (argv
[1], "write", 5) == 0) {
922 ulong addr
= simple_strtoul (argv
[2], NULL
, 16);
923 ulong off
= simple_strtoul (argv
[3], NULL
, 16);
924 ulong size
= simple_strtoul (argv
[4], NULL
, 16);
925 int cmd
= (strncmp (argv
[1], "read", 4) == 0) ?
926 NANDRW_READ
: NANDRW_WRITE
;
928 char *cmdtail
= strchr (argv
[1], '.');
930 if (cmdtail
&& !strncmp (cmdtail
, ".oob", 2)) {
931 /* read out-of-band data */
932 if (cmd
& NANDRW_READ
) {
933 ret
= nand_read_oob (nand_dev_desc
+ curr_device
,
934 off
, size
, (size_t *) & total
,
937 ret
= nand_write_oob (nand_dev_desc
+ curr_device
,
938 off
, size
, (size_t *) & total
,
942 } else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2", 2))
943 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
944 else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2s", 2)) {
945 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
946 if (cmd
& NANDRW_READ
)
947 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
950 /* need ".e" same as ".j" for compatibility with older units */
951 else if (cmdtail
&& !strcmp (cmdtail
, ".e"))
952 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
954 #ifdef CFG_NAND_SKIP_BAD_DOT_I
955 /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
956 /* ".i" for image -> read skips bad block (no 0xff) */
957 else if (cmdtail
&& !strcmp (cmdtail
, ".i")) {
958 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
959 if (cmd
& NANDRW_READ
)
960 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
962 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
964 printf ("Usage:\n%s\n", cmdtp
->usage
);
968 printf ("\nNAND %s: device %d offset %ld, size %ld ...\n",
969 (cmd
& NANDRW_READ
) ? "read" : "write",
970 curr_device
, off
, size
);
972 ret
= nand_legacy_rw (nand_dev_desc
+ curr_device
,
977 printf (" %d bytes %s: %s\n", total
,
978 (cmd
& NANDRW_READ
) ? "read" : "written",
979 ret
? "ERROR" : "OK");
982 } else if (strcmp (argv
[1], "erase") == 0 &&
983 (argc
== 4 || strcmp ("clean", argv
[2]) == 0)) {
984 int clean
= argc
== 5;
986 simple_strtoul (argv
[2 + clean
], NULL
, 16);
988 simple_strtoul (argv
[3 + clean
], NULL
, 16);
991 printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
992 curr_device
, off
, size
);
994 ret
= nand_legacy_erase (nand_dev_desc
+ curr_device
,
997 printf ("%s\n", ret
? "ERROR" : "OK");
1001 printf ("Usage:\n%s\n", cmdtp
->usage
);
1010 nand
, 5, 1, do_nand
,
1011 "nand - legacy NAND sub-system\n",
1012 "info - show available NAND devices\n"
1013 "nand device [dev] - show or set current device\n"
1014 "nand read[.jffs2[s]] addr off size\n"
1015 "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
1016 " at offset `off' to/from memory address `addr'\n"
1017 "nand erase [clean] [off size] - erase `size' bytes from\n"
1018 " offset `off' (entire device if not specified)\n"
1019 "nand bad - show bad blocks\n"
1020 "nand read.oob addr off size - read out-of-band data\n"
1021 "nand write.oob addr off size - read out-of-band data\n"
1024 int do_nandboot (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
1026 char *boot_device
= NULL
;
1032 image_header_t
*hdr
;
1034 #if defined(CONFIG_FIT)
1035 const void *fit_hdr
;
1038 show_boot_progress (52);
1041 addr
= CFG_LOAD_ADDR
;
1042 boot_device
= getenv ("bootdevice");
1045 addr
= simple_strtoul(argv
[1], NULL
, 16);
1046 boot_device
= getenv ("bootdevice");
1049 addr
= simple_strtoul(argv
[1], NULL
, 16);
1050 boot_device
= argv
[2];
1053 addr
= simple_strtoul(argv
[1], NULL
, 16);
1054 boot_device
= argv
[2];
1055 offset
= simple_strtoul(argv
[3], NULL
, 16);
1058 printf ("Usage:\n%s\n", cmdtp
->usage
);
1059 show_boot_progress (-53);
1063 show_boot_progress (53);
1065 puts ("\n** No boot device **\n");
1066 show_boot_progress (-54);
1069 show_boot_progress (54);
1071 dev
= simple_strtoul(boot_device
, &ep
, 16);
1073 if ((dev
>= CFG_MAX_NAND_DEVICE
) ||
1074 (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
)) {
1075 printf ("\n** Device %d not available\n", dev
);
1076 show_boot_progress (-55);
1079 show_boot_progress (55);
1081 printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1082 dev
, nand_dev_desc
[dev
].name
, nand_dev_desc
[dev
].IO_ADDR
,
1085 if (nand_legacy_rw (nand_dev_desc
+ dev
, NANDRW_READ
, offset
,
1086 SECTORSIZE
, NULL
, (u_char
*)addr
)) {
1087 printf ("** Read error on %d\n", dev
);
1088 show_boot_progress (-56);
1091 show_boot_progress (56);
1093 switch (genimg_get_format ((void *)addr
)) {
1094 case IMAGE_FORMAT_LEGACY
:
1095 hdr
= (image_header_t
*)addr
;
1096 image_print_contents (hdr
);
1098 cnt
= image_get_image_size (hdr
);
1101 #if defined(CONFIG_FIT)
1102 case IMAGE_FORMAT_FIT
:
1103 fit_hdr
= (const void *)addr
;
1104 if (!fit_check_format (fit_hdr
)) {
1105 show_boot_progress (-150);
1106 puts ("** Bad FIT image format\n");
1109 show_boot_progress (151);
1110 puts ("Fit image detected...\n");
1112 cnt
= fit_get_size (fit_hdr
);
1116 show_boot_progress (-57);
1117 puts ("** Unknown image type\n");
1120 show_boot_progress (57);
1122 if (nand_legacy_rw (nand_dev_desc
+ dev
, NANDRW_READ
,
1123 offset
+ SECTORSIZE
, cnt
, NULL
,
1124 (u_char
*)(addr
+SECTORSIZE
))) {
1125 printf ("** Read error on %d\n", dev
);
1126 show_boot_progress (-58);
1129 show_boot_progress (58);
1131 #if defined(CONFIG_FIT)
1132 /* This cannot be done earlier, we need complete FIT image in RAM first */
1133 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
)
1134 fit_print_contents ((const void *)addr
);
1137 /* Loading ok, update default load address */
1141 /* Check if we should attempt an auto-start */
1142 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
,"yes") == 0)) {
1143 char *local_args
[2];
1144 extern int do_bootm (cmd_tbl_t
*, int, int, char *[]);
1146 local_args
[0] = argv
[0];
1147 local_args
[1] = NULL
;
1149 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr
);
1151 do_bootm (cmdtp
, 0, 1, local_args
);
1158 nboot
, 4, 1, do_nandboot
,
1159 "nboot - boot from NAND device\n",
1165 #endif /* CFG_NAND_LEGACY */