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
, size_t *size
)
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], (ulong
*)size
))) {
114 printf("'%s' is not a number\n", argv
[1]);
117 if (*size
> part
->size
)
123 *nand
= nand_info
[idx
];
130 if (!(str2long(argv
[0], off
))) {
131 printf("'%s' is not a number\n", argv
[0]);
139 if (!(str2long(argv
[1], (ulong
*)size
))) {
140 printf("'%s' is not a number\n", argv
[1]);
144 *size
= nand
->size
- *off
;
147 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
150 printf("device %d ", idx
);
151 if (*size
== nand
->size
)
152 puts("whole chip\n");
154 printf("offset 0x%x, size 0x%x\n", *off
, *size
);
158 int do_nand(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
165 #ifdef CFG_NAND_QUIET
166 int quiet
= CFG_NAND_QUIET
;
170 const char *quiet_str
= getenv("quiet");
172 /* at least two arguments please */
177 quiet
= simple_strtoul(quiet_str
, NULL
, 0) != 0;
181 if (strcmp(cmd
, "info") == 0) {
184 for (i
= 0; i
< CFG_MAX_NAND_DEVICE
; i
++) {
185 if (nand_info
[i
].name
)
186 printf("Device %d: %s, sector size %lu KiB\n",
187 i
, nand_info
[i
].name
,
188 nand_info
[i
].erasesize
>> 10);
193 if (strcmp(cmd
, "device") == 0) {
196 if ((nand_curr_device
< 0) ||
197 (nand_curr_device
>= CFG_MAX_NAND_DEVICE
))
198 puts("\nno devices available\n");
200 printf("\nDevice %d: %s\n", nand_curr_device
,
201 nand_info
[nand_curr_device
].name
);
204 dev
= (int)simple_strtoul(argv
[2], NULL
, 10);
205 if (dev
< 0 || dev
>= CFG_MAX_NAND_DEVICE
|| !nand_info
[dev
].name
) {
206 puts("No such device\n");
209 printf("Device %d: %s", dev
, nand_info
[dev
].name
);
210 puts("... is now current device\n");
211 nand_curr_device
= dev
;
213 #ifdef CFG_NAND_SELECT_DEVICE
215 * Select the chip in the board/cpu specific driver
217 board_nand_select_device(nand_info
[dev
].priv
, dev
);
223 if (strcmp(cmd
, "bad") != 0 && strcmp(cmd
, "erase") != 0 &&
224 strncmp(cmd
, "dump", 4) != 0 &&
225 strncmp(cmd
, "read", 4) != 0 && strncmp(cmd
, "write", 5) != 0 &&
226 strcmp(cmd
, "scrub") != 0 && strcmp(cmd
, "markbad") != 0 &&
227 strcmp(cmd
, "biterr") != 0 &&
228 strcmp(cmd
, "lock") != 0 && strcmp(cmd
, "unlock") != 0 )
231 /* the following commands operate on the current device */
232 if (nand_curr_device
< 0 || nand_curr_device
>= CFG_MAX_NAND_DEVICE
||
233 !nand_info
[nand_curr_device
].name
) {
234 puts("\nno devices available\n");
237 nand
= &nand_info
[nand_curr_device
];
239 if (strcmp(cmd
, "bad") == 0) {
240 printf("\nDevice %d bad blocks:\n", nand_curr_device
);
241 for (off
= 0; off
< nand
->size
; off
+= nand
->erasesize
)
242 if (nand_block_isbad(nand
, off
))
243 printf(" %08x\n", off
);
250 * nand erase [clean] [off size]
252 if (strcmp(cmd
, "erase") == 0 || strcmp(cmd
, "scrub") == 0) {
253 nand_erase_options_t opts
;
254 /* "clean" at index 2 means request to write cleanmarker */
255 int clean
= argc
> 2 && !strcmp("clean", argv
[2]);
256 int o
= clean
? 3 : 2;
257 int scrub
= !strcmp(cmd
, "scrub");
259 printf("\nNAND %s: ", scrub
? "scrub" : "erase");
260 /* skip first two or three arguments, look for offset and size */
261 if (arg_off_size(argc
- o
, argv
+ o
, nand
, &off
, &size
) != 0)
264 memset(&opts
, 0, sizeof(opts
));
272 "scrub option will erase all factory set "
275 "There is no reliable way to recover them.\n"
277 "Use this command only for testing purposes "
280 "are sure of what you are doing!\n"
281 "\nReally scrub this NAND flash? <y/N>\n");
283 if (getc() == 'y' && getc() == '\r') {
286 puts("scrub aborted\n");
290 ret
= nand_erase_opts(nand
, &opts
);
291 printf("%s\n", ret
? "ERROR" : "OK");
293 return ret
== 0 ? 0 : 1;
296 if (strncmp(cmd
, "dump", 4) == 0) {
300 s
= strchr(cmd
, '.');
301 off
= (int)simple_strtoul(argv
[2], NULL
, 16);
303 if (s
!= NULL
&& strcmp(s
, ".oob") == 0)
304 ret
= nand_dump_oob(nand
, off
);
306 ret
= nand_dump(nand
, off
);
308 return ret
== 0 ? 1 : 0;
313 if (strncmp(cmd
, "read", 4) == 0 || strncmp(cmd
, "write", 5) == 0) {
319 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
321 read
= strncmp(cmd
, "read", 4) == 0; /* 1 = read, 0 = write */
322 printf("\nNAND %s: ", read
? "read" : "write");
323 if (arg_off_size(argc
- 3, argv
+ 3, nand
, &off
, &size
) != 0)
326 s
= strchr(cmd
, '.');
328 (!strcmp(s
, ".jffs2") || !strcmp(s
, ".e") || !strcmp(s
, ".i"))) {
331 nand_read_options_t opts
;
332 memset(&opts
, 0, sizeof(opts
));
333 opts
.buffer
= (u_char
*) addr
;
337 ret
= nand_read_opts(nand
, &opts
);
340 nand_write_options_t opts
;
341 memset(&opts
, 0, sizeof(opts
));
342 opts
.buffer
= (u_char
*) addr
;
345 /* opts.forcejffs2 = 1; */
349 ret
= nand_write_opts(nand
, &opts
);
351 } else if (s
!= NULL
&& !strcmp(s
, ".oob")) {
352 /* read out-of-band data */
354 ret
= nand
->read_oob(nand
, off
, size
, &size
,
357 ret
= nand
->write_oob(nand
, off
, size
, &size
,
361 ret
= nand_read(nand
, off
, &size
, (u_char
*)addr
);
363 ret
= nand_write(nand
, off
, &size
, (u_char
*)addr
);
366 printf(" %d bytes %s: %s\n", size
,
367 read
? "read" : "written", ret
? "ERROR" : "OK");
369 return ret
== 0 ? 0 : 1;
372 if (strcmp(cmd
, "markbad") == 0) {
373 addr
= (ulong
)simple_strtoul(argv
[2], NULL
, 16);
375 int ret
= nand
->block_markbad(nand
, addr
);
377 printf("block 0x%08lx successfully marked as bad\n",
381 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
386 if (strcmp(cmd
, "biterr") == 0) {
391 if (strcmp(cmd
, "lock") == 0) {
395 if (!strcmp("tight", argv
[2]))
397 if (!strcmp("status", argv
[2]))
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
->oobblock
) {
414 int s
= nand_get_lock_status(nand
, off
);
416 /* print message only if status has changed
419 if (off
== nand
->size
- nand
->oobblock
420 || (s
!= last_status
&& off
!= 0)) {
422 printf("%08x - %08x: %8d pages %s%s%s\n",
425 (off
-block_start
)/nand
->oobblock
,
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");
444 if (strcmp(cmd
, "unlock") == 0) {
445 if (arg_off_size(argc
- 2, argv
+ 2, nand
, &off
, &size
) < 0)
448 if (!nand_unlock(nand
, off
, size
)) {
449 puts("NAND flash successfully unlocked\n");
451 puts("Error unlocking NAND flash, "
452 "write and erase will probably fail\n");
459 printf("Usage:\n%s\n", cmdtp
->usage
);
463 U_BOOT_CMD(nand
, 5, 1, do_nand
,
464 "nand - NAND sub-system\n",
465 "info - show available NAND devices\n"
466 "nand device [dev] - show or set current device\n"
467 "nand read[.jffs2] - addr off|partition size\n"
468 "nand write[.jffs2] - addr off|partition size - read/write `size' bytes starting\n"
469 " at offset `off' to/from memory address `addr'\n"
470 "nand erase [clean] [off size] - erase `size' bytes from\n"
471 " offset `off' (entire device if not specified)\n"
472 "nand bad - show bad blocks\n"
473 "nand dump[.oob] off - dump page\n"
474 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
475 "nand markbad off - mark bad block at offset (UNSAFE)\n"
476 "nand biterr off - make a bit error at offset (UNSAFE)\n"
477 "nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
478 "nand unlock [offset] [size] - unlock section\n");
480 static int nand_load_image(cmd_tbl_t
*cmdtp
, nand_info_t
*nand
,
481 ulong offset
, ulong addr
, char *cmd
)
488 #if defined(CONFIG_FIT)
492 s
= strchr(cmd
, '.');
494 (!strcmp(s
, ".jffs2") || !strcmp(s
, ".e") || !strcmp(s
, ".i")))
497 printf("\nLoading from %s, offset 0x%lx\n", nand
->name
, offset
);
499 cnt
= nand
->oobblock
;
501 nand_read_options_t opts
;
502 memset(&opts
, 0, sizeof(opts
));
503 opts
.buffer
= (u_char
*) addr
;
505 opts
.offset
= offset
;
507 r
= nand_read_opts(nand
, &opts
);
509 r
= nand_read(nand
, offset
, &cnt
, (u_char
*) addr
);
513 puts("** Read error\n");
514 show_boot_progress (-56);
517 show_boot_progress (56);
519 switch (genimg_get_format ((void *)addr
)) {
520 case IMAGE_FORMAT_LEGACY
:
521 hdr
= (image_header_t
*)addr
;
523 show_boot_progress (57);
524 image_print_contents (hdr
);
526 cnt
= image_get_image_size (hdr
);
528 #if defined(CONFIG_FIT)
529 case IMAGE_FORMAT_FIT
:
530 fit_hdr
= (const void *)addr
;
531 if (!fit_check_format (fit_hdr
)) {
532 show_boot_progress (-150);
533 puts ("** Bad FIT image format\n");
536 show_boot_progress (151);
537 puts ("Fit image detected...\n");
539 cnt
= fit_get_size (fit_hdr
);
543 show_boot_progress (-57);
544 puts ("** Unknown image type\n");
549 nand_read_options_t opts
;
550 memset(&opts
, 0, sizeof(opts
));
551 opts
.buffer
= (u_char
*) addr
;
553 opts
.offset
= offset
;
555 r
= nand_read_opts(nand
, &opts
);
557 r
= nand_read(nand
, offset
, &cnt
, (u_char
*) addr
);
561 puts("** Read error\n");
562 show_boot_progress (-58);
565 show_boot_progress (58);
567 #if defined(CONFIG_FIT)
568 /* This cannot be done earlier, we need complete FIT image in RAM first */
569 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
)
570 fit_print_contents ((const void *)addr
);
573 /* Loading ok, update default load address */
577 /* Check if we should attempt an auto-start */
578 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
, "yes") == 0)) {
580 extern int do_bootm(cmd_tbl_t
*, int, int, char *[]);
583 local_args
[1] = NULL
;
585 printf("Automatic boot of image at addr 0x%08lx ...\n", addr
);
587 do_bootm(cmdtp
, 0, 1, local_args
);
593 int do_nandboot(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
595 char *boot_device
= NULL
;
597 ulong addr
, offset
= 0;
598 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
599 struct mtd_device
*dev
;
600 struct part_info
*part
;
604 char *p
= (argc
== 2) ? argv
[1] : argv
[2];
605 if (!(str2long(p
, &addr
)) && (mtdparts_init() == 0) &&
606 (find_dev_and_part(p
, &dev
, &pnum
, &part
) == 0)) {
607 if (dev
->id
->type
!= MTD_DEV_TYPE_NAND
) {
608 puts("Not a NAND device\n");
614 addr
= simple_strtoul(argv
[1], NULL
, 16);
616 addr
= CFG_LOAD_ADDR
;
617 return nand_load_image(cmdtp
, &nand_info
[dev
->id
->num
],
618 part
->offset
, addr
, argv
[0]);
623 show_boot_progress(52);
626 addr
= CFG_LOAD_ADDR
;
627 boot_device
= getenv("bootdevice");
630 addr
= simple_strtoul(argv
[1], NULL
, 16);
631 boot_device
= getenv("bootdevice");
634 addr
= simple_strtoul(argv
[1], NULL
, 16);
635 boot_device
= argv
[2];
638 addr
= simple_strtoul(argv
[1], NULL
, 16);
639 boot_device
= argv
[2];
640 offset
= simple_strtoul(argv
[3], NULL
, 16);
643 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
646 printf("Usage:\n%s\n", cmdtp
->usage
);
647 show_boot_progress(-53);
651 show_boot_progress(53);
653 puts("\n** No boot device **\n");
654 show_boot_progress(-54);
657 show_boot_progress(54);
659 idx
= simple_strtoul(boot_device
, NULL
, 16);
661 if (idx
< 0 || idx
>= CFG_MAX_NAND_DEVICE
|| !nand_info
[idx
].name
) {
662 printf("\n** Device %d not available\n", idx
);
663 show_boot_progress(-55);
666 show_boot_progress(55);
668 return nand_load_image(cmdtp
, &nand_info
[idx
], offset
, addr
, argv
[0]);
671 U_BOOT_CMD(nboot
, 4, 1, do_nandboot
,
672 "nboot - boot from NAND device\n",
673 "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
677 #else /* CFG_NAND_LEGACY */
680 * Legacy NAND support - to be phased out
686 #include <watchdog.h>
688 #ifdef CONFIG_show_boot_progress
689 # include <status_led.h>
690 # define show_boot_progress(arg) show_boot_progress(arg)
692 # define show_boot_progress(arg)
695 #if defined(CONFIG_CMD_NAND)
696 #include <linux/mtd/nand_legacy.h>
698 #include <linux/mtd/nand_ids.h>
699 #include <jffs2/jffs2.h>
702 #ifdef CONFIG_OMAP1510
703 void archflashwp(void *archdata
, int wp
);
706 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
711 /* ****************** WARNING *********************
712 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
713 * erase (or at least attempt to erase) blocks that are marked
714 * bad. This can be very handy if you are _sure_ that the block
715 * is OK, say because you marked a good block bad to test bad
716 * block handling and you are done testing, or if you have
717 * accidentally marked blocks bad.
719 * Erasing factory marked bad blocks is a _bad_ idea. If the
720 * erase succeeds there is no reliable way to find them again,
721 * and attempting to program or erase bad blocks can affect
722 * the data in _other_ (good) blocks.
724 #define ALLOW_ERASE_BAD_DEBUG 0
726 #define CONFIG_MTD_NAND_ECC /* enable ECC */
727 #define CONFIG_MTD_NAND_ECC_JFFS2
729 /* bits for nand_legacy_rw() `cmd'; or together as needed */
730 #define NANDRW_READ 0x01
731 #define NANDRW_WRITE 0x00
732 #define NANDRW_JFFS2 0x02
733 #define NANDRW_JFFS2_SKIP 0x04
736 * Imports from nand_legacy.c
738 extern struct nand_chip nand_dev_desc
[CFG_MAX_NAND_DEVICE
];
739 extern int curr_device
;
740 extern int nand_legacy_erase(struct nand_chip
*nand
, size_t ofs
,
741 size_t len
, int clean
);
742 extern int nand_legacy_rw(struct nand_chip
*nand
, int cmd
, size_t start
,
743 size_t len
, size_t *retlen
, u_char
*buf
);
744 extern void nand_print(struct nand_chip
*nand
);
745 extern void nand_print_bad(struct nand_chip
*nand
);
746 extern int nand_read_oob(struct nand_chip
*nand
, size_t ofs
,
747 size_t len
, size_t *retlen
, u_char
*buf
);
748 extern int nand_write_oob(struct nand_chip
*nand
, size_t ofs
,
749 size_t len
, size_t *retlen
, const u_char
*buf
);
752 int do_nand (cmd_tbl_t
* cmdtp
, int flag
, int argc
, char *argv
[])
759 printf ("Usage:\n%s\n", cmdtp
->usage
);
762 if (strcmp (argv
[1], "info") == 0) {
767 for (i
= 0; i
< CFG_MAX_NAND_DEVICE
; ++i
) {
768 if (nand_dev_desc
[i
].ChipID
==
770 continue; /* list only known devices */
771 printf ("Device %d: ", i
);
772 nand_print (&nand_dev_desc
[i
]);
776 } else if (strcmp (argv
[1], "device") == 0) {
777 if ((curr_device
< 0)
778 || (curr_device
>= CFG_MAX_NAND_DEVICE
)) {
779 puts ("\nno devices available\n");
782 printf ("\nDevice %d: ", curr_device
);
783 nand_print (&nand_dev_desc
[curr_device
]);
786 } else if (strcmp (argv
[1], "bad") == 0) {
787 if ((curr_device
< 0)
788 || (curr_device
>= CFG_MAX_NAND_DEVICE
)) {
789 puts ("\nno devices available\n");
792 printf ("\nDevice %d bad blocks:\n", curr_device
);
793 nand_print_bad (&nand_dev_desc
[curr_device
]);
797 printf ("Usage:\n%s\n", cmdtp
->usage
);
800 if (strcmp (argv
[1], "device") == 0) {
801 int dev
= (int) simple_strtoul (argv
[2], NULL
, 10);
803 printf ("\nDevice %d: ", dev
);
804 if (dev
>= CFG_MAX_NAND_DEVICE
) {
805 puts ("unknown device\n");
808 nand_print (&nand_dev_desc
[dev
]);
809 /*nand_print (dev); */
811 if (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
) {
817 puts ("... is now current device\n");
820 } else if (strcmp (argv
[1], "erase") == 0
821 && strcmp (argv
[2], "clean") == 0) {
822 struct nand_chip
*nand
= &nand_dev_desc
[curr_device
];
824 ulong size
= nand
->totlen
;
827 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device
, off
, size
);
829 ret
= nand_legacy_erase (nand
, off
, size
, 1);
831 printf ("%s\n", ret
? "ERROR" : "OK");
836 printf ("Usage:\n%s\n", cmdtp
->usage
);
839 /* at least 4 args */
841 if (strncmp (argv
[1], "read", 4) == 0 ||
842 strncmp (argv
[1], "write", 5) == 0) {
843 ulong addr
= simple_strtoul (argv
[2], NULL
, 16);
844 off_t off
= simple_strtoul (argv
[3], NULL
, 16);
845 size_t size
= simple_strtoul (argv
[4], NULL
, 16);
846 int cmd
= (strncmp (argv
[1], "read", 4) == 0) ?
847 NANDRW_READ
: NANDRW_WRITE
;
850 char *cmdtail
= strchr (argv
[1], '.');
852 if (cmdtail
&& !strncmp (cmdtail
, ".oob", 2)) {
853 /* read out-of-band data */
854 if (cmd
& NANDRW_READ
) {
855 ret
= nand_read_oob (nand_dev_desc
+ curr_device
,
859 ret
= nand_write_oob (nand_dev_desc
+ curr_device
,
864 } else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2", 2))
865 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
866 else if (cmdtail
&& !strncmp (cmdtail
, ".jffs2s", 2)) {
867 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
868 if (cmd
& NANDRW_READ
)
869 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
872 /* need ".e" same as ".j" for compatibility with older units */
873 else if (cmdtail
&& !strcmp (cmdtail
, ".e"))
874 cmd
|= NANDRW_JFFS2
; /* skip bad blocks */
876 #ifdef CFG_NAND_SKIP_BAD_DOT_I
877 /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
878 /* ".i" for image -> read skips bad block (no 0xff) */
879 else if (cmdtail
&& !strcmp (cmdtail
, ".i")) {
880 cmd
|= NANDRW_JFFS2
; /* skip bad blocks (on read too) */
881 if (cmd
& NANDRW_READ
)
882 cmd
|= NANDRW_JFFS2_SKIP
; /* skip bad blocks (on read too) */
884 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
886 printf ("Usage:\n%s\n", cmdtp
->usage
);
890 printf ("\nNAND %s: device %d offset %ld, size %ld ...\n",
891 (cmd
& NANDRW_READ
) ? "read" : "write",
892 curr_device
, off
, size
);
894 ret
= nand_legacy_rw (nand_dev_desc
+ curr_device
,
899 printf (" %d bytes %s: %s\n", total
,
900 (cmd
& NANDRW_READ
) ? "read" : "written",
901 ret
? "ERROR" : "OK");
904 } else if (strcmp (argv
[1], "erase") == 0 &&
905 (argc
== 4 || strcmp ("clean", argv
[2]) == 0)) {
906 int clean
= argc
== 5;
908 simple_strtoul (argv
[2 + clean
], NULL
, 16);
910 simple_strtoul (argv
[3 + clean
], NULL
, 16);
913 printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
914 curr_device
, off
, size
);
916 ret
= nand_legacy_erase (nand_dev_desc
+ curr_device
,
919 printf ("%s\n", ret
? "ERROR" : "OK");
923 printf ("Usage:\n%s\n", cmdtp
->usage
);
933 "nand - legacy NAND sub-system\n",
934 "info - show available NAND devices\n"
935 "nand device [dev] - show or set current device\n"
936 "nand read[.jffs2[s]] addr off size\n"
937 "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
938 " at offset `off' to/from memory address `addr'\n"
939 "nand erase [clean] [off size] - erase `size' bytes from\n"
940 " offset `off' (entire device if not specified)\n"
941 "nand bad - show bad blocks\n"
942 "nand read.oob addr off size - read out-of-band data\n"
943 "nand write.oob addr off size - read out-of-band data\n"
946 int do_nandboot (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
948 char *boot_device
= NULL
;
956 #if defined(CONFIG_FIT)
960 show_boot_progress (52);
963 addr
= CFG_LOAD_ADDR
;
964 boot_device
= getenv ("bootdevice");
967 addr
= simple_strtoul(argv
[1], NULL
, 16);
968 boot_device
= getenv ("bootdevice");
971 addr
= simple_strtoul(argv
[1], NULL
, 16);
972 boot_device
= argv
[2];
975 addr
= simple_strtoul(argv
[1], NULL
, 16);
976 boot_device
= argv
[2];
977 offset
= simple_strtoul(argv
[3], NULL
, 16);
980 printf ("Usage:\n%s\n", cmdtp
->usage
);
981 show_boot_progress (-53);
985 show_boot_progress (53);
987 puts ("\n** No boot device **\n");
988 show_boot_progress (-54);
991 show_boot_progress (54);
993 dev
= simple_strtoul(boot_device
, &ep
, 16);
995 if ((dev
>= CFG_MAX_NAND_DEVICE
) ||
996 (nand_dev_desc
[dev
].ChipID
== NAND_ChipID_UNKNOWN
)) {
997 printf ("\n** Device %d not available\n", dev
);
998 show_boot_progress (-55);
1001 show_boot_progress (55);
1003 printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1004 dev
, nand_dev_desc
[dev
].name
, nand_dev_desc
[dev
].IO_ADDR
,
1007 if (nand_legacy_rw (nand_dev_desc
+ dev
, NANDRW_READ
, offset
,
1008 SECTORSIZE
, NULL
, (u_char
*)addr
)) {
1009 printf ("** Read error on %d\n", dev
);
1010 show_boot_progress (-56);
1013 show_boot_progress (56);
1015 switch (genimg_get_format ((void *)addr
)) {
1016 case IMAGE_FORMAT_LEGACY
:
1017 hdr
= (image_header_t
*)addr
;
1018 image_print_contents (hdr
);
1020 cnt
= image_get_image_size (hdr
);
1023 #if defined(CONFIG_FIT)
1024 case IMAGE_FORMAT_FIT
:
1025 fit_hdr
= (const void *)addr
;
1026 if (!fit_check_format (fit_hdr
)) {
1027 show_boot_progress (-150);
1028 puts ("** Bad FIT image format\n");
1031 show_boot_progress (151);
1032 puts ("Fit image detected...\n");
1034 cnt
= fit_get_size (fit_hdr
);
1038 show_boot_progress (-57);
1039 puts ("** Unknown image type\n");
1042 show_boot_progress (57);
1044 if (nand_legacy_rw (nand_dev_desc
+ dev
, NANDRW_READ
,
1045 offset
+ SECTORSIZE
, cnt
, NULL
,
1046 (u_char
*)(addr
+SECTORSIZE
))) {
1047 printf ("** Read error on %d\n", dev
);
1048 show_boot_progress (-58);
1051 show_boot_progress (58);
1053 #if defined(CONFIG_FIT)
1054 /* This cannot be done earlier, we need complete FIT image in RAM first */
1055 if (genimg_get_format ((void *)addr
) == IMAGE_FORMAT_FIT
)
1056 fit_print_contents ((const void *)addr
);
1059 /* Loading ok, update default load address */
1063 /* Check if we should attempt an auto-start */
1064 if (((ep
= getenv("autostart")) != NULL
) && (strcmp(ep
,"yes") == 0)) {
1065 char *local_args
[2];
1066 extern int do_bootm (cmd_tbl_t
*, int, int, char *[]);
1068 local_args
[0] = argv
[0];
1069 local_args
[1] = NULL
;
1071 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr
);
1073 do_bootm (cmdtp
, 0, 1, local_args
);
1080 nboot
, 4, 1, do_nandboot
,
1081 "nboot - boot from NAND device\n",
1087 #endif /* CFG_NAND_LEGACY */