3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 #ifdef CONFIG_HAS_DATAFLASH
31 #include <dataflash.h>
34 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
35 #include <jffs2/jffs2.h>
37 /* parition handling routines */
38 int mtdparts_init(void);
39 int id_parse(const char *id
, const char **ret_id
, u8
*dev_type
, u8
*dev_num
);
40 int find_dev_and_part(const char *id
, struct mtd_device
**dev
,
41 u8
*part_num
, struct part_info
**part
);
45 extern flash_info_t flash_info
[]; /* info for FLASH chips */
48 * The user interface starts numbering for Flash banks with 1
49 * for historical reasons.
53 * this routine looks for an abbreviated flash range specification.
54 * the syntax is B:SF[-SL], where B is the bank number, SF is the first
55 * sector to erase, and SL is the last sector to erase (defaults to SF).
56 * bank numbers start at 1 to be consistent with other specs, sector numbers
59 * returns: 1 - correct spec; *pinfo, *psf and *psl are
61 * 0 - doesn't look like an abbreviated spec
62 * -1 - looks like an abbreviated spec, but got
63 * a parsing error, a number out of range,
64 * or an invalid flash bank.
67 abbrev_spec (char *str
, flash_info_t
** pinfo
, int *psf
, int *psl
)
70 int bank
, first
, last
;
73 if ((p
= strchr (str
, ':')) == NULL
)
77 bank
= simple_strtoul (str
, &ep
, 10);
78 if (ep
== str
|| *ep
!= '\0' ||
79 bank
< 1 || bank
> CFG_MAX_FLASH_BANKS
||
80 (fp
= &flash_info
[bank
- 1])->flash_id
== FLASH_UNKNOWN
)
84 if ((p
= strchr (str
, '-')) != NULL
)
87 first
= simple_strtoul (str
, &ep
, 10);
88 if (ep
== str
|| *ep
!= '\0' || first
>= fp
->sector_count
)
92 last
= simple_strtoul (p
, &ep
, 10);
93 if (ep
== p
|| *ep
!= '\0' ||
94 last
< first
|| last
>= fp
->sector_count
)
108 * This function computes the start and end addresses for both
109 * erase and protect commands. The range of the addresses on which
110 * either of the commands is to operate can be given in two forms:
111 * 1. <cmd> start end - operate on <'start', 'end')
112 * 2. <cmd> start +length - operate on <'start', start + length)
113 * If the second form is used and the end address doesn't fall on the
114 * sector boundary, than it will be adjusted to the next sector boundary.
115 * If it isn't in the flash, the function will fail (return -1).
117 * arg1, arg2: address specification (i.e. both command arguments)
119 * addr_first, addr_last: computed address range
122 * -1: failure (bad format, bad address).
125 addr_spec(char *arg1
, char *arg2
, ulong
*addr_first
, ulong
*addr_last
)
128 char len_used
; /* indicates if the "start +length" form used */
132 *addr_first
= simple_strtoul(arg1
, &ep
, 16);
133 if (ep
== arg1
|| *ep
!= '\0')
137 if (arg2
&& *arg2
== '+'){
142 *addr_last
= simple_strtoul(arg2
, &ep
, 16);
143 if (ep
== arg2
|| *ep
!= '\0')
148 * *addr_last has the length, compute correct *addr_last
149 * XXX watch out for the integer overflow! Right now it is
150 * checked for in both the callers.
152 *addr_last
= *addr_first
+ *addr_last
- 1;
155 * It may happen that *addr_last doesn't fall on the sector
156 * boundary. We want to round such an address to the next
157 * sector boundary, so that the commands don't fail later on.
160 /* find the end addr of the sector where the *addr_last is */
162 for (bank
= 0; bank
< CFG_MAX_FLASH_BANKS
&& !found
; ++bank
){
164 flash_info_t
*info
= &flash_info
[bank
];
165 for (i
= 0; i
< info
->sector_count
&& !found
; ++i
){
166 /* get the end address of the sector */
167 ulong sector_end_addr
;
168 if (i
== info
->sector_count
- 1){
170 info
->start
[0] + info
->size
- 1;
173 info
->start
[i
+1] - 1;
175 if (*addr_last
<= sector_end_addr
&&
176 *addr_last
>= info
->start
[i
]){
179 /* adjust *addr_last if necessary */
180 if (*addr_last
< sector_end_addr
){
181 *addr_last
= sector_end_addr
;
187 /* error, addres not in flash */
188 printf("Error: end address (0x%08lx) not in flash!\n",
192 } /* "start +length" from used */
198 flash_fill_sect_ranges (ulong addr_first
, ulong addr_last
,
199 int *s_first
, int *s_last
,
208 for (bank
=0; bank
< CFG_MAX_FLASH_BANKS
; ++bank
) {
209 s_first
[bank
] = -1; /* first sector to erase */
210 s_last
[bank
] = -1; /* last sector to erase */
213 for (bank
=0,info
=&flash_info
[0];
214 (bank
< CFG_MAX_FLASH_BANKS
) && (addr_first
<= addr_last
);
220 if (info
->flash_id
== FLASH_UNKNOWN
) {
224 b_end
= info
->start
[0] + info
->size
- 1; /* bank end addr */
225 s_end
= info
->sector_count
- 1; /* last sector */
228 for (sect
=0; sect
< info
->sector_count
; ++sect
) {
229 ulong end
; /* last address in current sect */
231 end
= (sect
== s_end
) ? b_end
: info
->start
[sect
+ 1] - 1;
233 if (addr_first
> end
)
235 if (addr_last
< info
->start
[sect
])
238 if (addr_first
== info
->start
[sect
]) {
239 s_first
[bank
] = sect
;
241 if (addr_last
== end
) {
245 if (s_first
[bank
] >= 0) {
246 if (s_last
[bank
] < 0) {
247 if (addr_last
> b_end
) {
248 s_last
[bank
] = s_end
;
250 puts ("Error: end address"
251 " not on sector boundary\n");
256 if (s_last
[bank
] < s_first
[bank
]) {
257 puts ("Error: end sector"
258 " precedes start sector\n");
263 addr_first
= (sect
== s_end
) ? b_end
+ 1: info
->start
[sect
+ 1];
264 (*s_count
) += s_last
[bank
] - s_first
[bank
] + 1;
265 } else if (addr_first
>= info
->start
[0] && addr_first
< b_end
) {
266 puts ("Error: start address not on sector boundary\n");
269 } else if (s_last
[bank
] >= 0) {
270 puts ("Error: cannot span across banks when they are"
271 " mapped in reverse order\n");
279 #endif /* CFG_NO_FLASH */
281 int do_flinfo ( cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
287 #ifdef CONFIG_HAS_DATAFLASH
288 dataflash_print_info();
292 if (argc
== 1) { /* print info for all FLASH banks */
293 for (bank
=0; bank
<CFG_MAX_FLASH_BANKS
; ++bank
) {
294 printf ("\nBank # %ld: ", bank
+1);
296 flash_print_info (&flash_info
[bank
]);
301 bank
= simple_strtoul(argv
[1], NULL
, 16);
302 if ((bank
< 1) || (bank
> CFG_MAX_FLASH_BANKS
)) {
303 printf ("Only FLASH Banks # 1 ... # %d supported\n",
304 CFG_MAX_FLASH_BANKS
);
307 printf ("\nBank # %ld: ", bank
);
308 flash_print_info (&flash_info
[bank
-1]);
309 #endif /* CFG_NO_FLASH */
313 int do_flerase (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
317 ulong bank
, addr_first
, addr_last
;
318 int n
, sect_first
, sect_last
;
319 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
320 struct mtd_device
*dev
;
321 struct part_info
*part
;
322 u8 dev_type
, dev_num
, pnum
;
327 printf ("Usage:\n%s\n", cmdtp
->usage
);
331 if (strcmp(argv
[1], "all") == 0) {
332 for (bank
=1; bank
<=CFG_MAX_FLASH_BANKS
; ++bank
) {
333 printf ("Erase Flash Bank # %ld ", bank
);
334 info
= &flash_info
[bank
-1];
335 rcode
= flash_erase (info
, 0, info
->sector_count
-1);
340 if ((n
= abbrev_spec(argv
[1], &info
, §_first
, §_last
)) != 0) {
342 puts ("Bad sector specification\n");
345 printf ("Erase Flash Sectors %d-%d in Bank # %d ",
346 sect_first
, sect_last
, (info
-flash_info
)+1);
347 rcode
= flash_erase(info
, sect_first
, sect_last
);
351 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
352 /* erase <part-id> - erase partition */
353 if ((argc
== 2) && (id_parse(argv
[1], NULL
, &dev_type
, &dev_num
) == 0)) {
355 if (find_dev_and_part(argv
[1], &dev
, &pnum
, &part
) == 0) {
356 if (dev
->id
->type
== MTD_DEV_TYPE_NOR
) {
358 info
= &flash_info
[bank
];
359 addr_first
= part
->offset
+ info
->start
[0];
360 addr_last
= addr_first
+ part
->size
- 1;
362 printf ("Erase Flash Parition %s, "
363 "bank %d, 0x%08lx - 0x%08lx ",
364 argv
[1], bank
, addr_first
,
367 rcode
= flash_sect_erase(addr_first
, addr_last
);
371 printf("cannot erase, not a NOR device\n");
378 printf ("Usage:\n%s\n", cmdtp
->usage
);
382 if (strcmp(argv
[1], "bank") == 0) {
383 bank
= simple_strtoul(argv
[2], NULL
, 16);
384 if ((bank
< 1) || (bank
> CFG_MAX_FLASH_BANKS
)) {
385 printf ("Only FLASH Banks # 1 ... # %d supported\n",
386 CFG_MAX_FLASH_BANKS
);
389 printf ("Erase Flash Bank # %ld ", bank
);
390 info
= &flash_info
[bank
-1];
391 rcode
= flash_erase (info
, 0, info
->sector_count
-1);
395 if (addr_spec(argv
[1], argv
[2], &addr_first
, &addr_last
) < 0){
396 printf ("Bad address format\n");
400 if (addr_first
>= addr_last
) {
401 printf ("Usage:\n%s\n", cmdtp
->usage
);
405 rcode
= flash_sect_erase(addr_first
, addr_last
);
409 #endif /* CFG_NO_FLASH */
413 int flash_sect_erase (ulong addr_first
, ulong addr_last
)
417 #ifdef CFG_MAX_FLASH_BANKS_DETECT
418 int s_first
[CFG_MAX_FLASH_BANKS_DETECT
], s_last
[CFG_MAX_FLASH_BANKS_DETECT
];
420 int s_first
[CFG_MAX_FLASH_BANKS
], s_last
[CFG_MAX_FLASH_BANKS
];
426 rcode
= flash_fill_sect_ranges (addr_first
, addr_last
,
427 s_first
, s_last
, &planned
);
429 if (planned
&& (rcode
== 0)) {
430 for (bank
=0,info
=&flash_info
[0];
431 (bank
< CFG_MAX_FLASH_BANKS
) && (rcode
== 0);
433 if (s_first
[bank
]>=0) {
434 erased
+= s_last
[bank
] - s_first
[bank
] + 1;
435 debug ("Erase Flash from 0x%08lx to 0x%08lx "
437 info
->start
[s_first
[bank
]],
438 (s_last
[bank
] == info
->sector_count
) ?
439 info
->start
[0] + info
->size
- 1:
440 info
->start
[s_last
[bank
]+1] - 1,
442 rcode
= flash_erase (info
, s_first
[bank
], s_last
[bank
]);
445 printf ("Erased %d sectors\n", erased
);
446 } else if (rcode
== 0) {
447 puts ("Error: start and/or end address"
448 " not on sector boundary\n");
453 #endif /* CFG_NO_FLASH */
455 int do_protect (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
460 int i
, n
, sect_first
, sect_last
;
461 #endif /* CFG_NO_FLASH */
462 ulong addr_first
, addr_last
;
464 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
465 struct mtd_device
*dev
;
466 struct part_info
*part
;
467 u8 dev_type
, dev_num
, pnum
;
470 #ifdef CONFIG_HAS_DATAFLASH
475 printf ("Usage:\n%s\n", cmdtp
->usage
);
479 if (strcmp(argv
[1], "off") == 0) {
481 } else if (strcmp(argv
[1], "on") == 0) {
484 printf ("Usage:\n%s\n", cmdtp
->usage
);
488 #ifdef CONFIG_HAS_DATAFLASH
489 if ((strcmp(argv
[2], "all") != 0) && (strcmp(argv
[2], "bank") != 0)) {
490 addr_first
= simple_strtoul(argv
[2], NULL
, 16);
491 addr_last
= simple_strtoul(argv
[3], NULL
, 16);
493 if (addr_dataflash(addr_first
) && addr_dataflash(addr_last
)) {
494 status
= dataflash_real_protect(p
,addr_first
,addr_last
);
496 puts ("Bad DataFlash sector specification\n");
499 printf("%sProtect %d DataFlash Sectors\n",
500 p
? "" : "Un-", status
);
507 if (strcmp(argv
[2], "all") == 0) {
508 for (bank
=1; bank
<=CFG_MAX_FLASH_BANKS
; ++bank
) {
509 info
= &flash_info
[bank
-1];
510 if (info
->flash_id
== FLASH_UNKNOWN
) {
513 printf ("%sProtect Flash Bank # %ld\n",
514 p
? "" : "Un-", bank
);
516 for (i
=0; i
<info
->sector_count
; ++i
) {
517 #if defined(CFG_FLASH_PROTECTION)
518 if (flash_real_protect(info
, i
, p
))
522 info
->protect
[i
] = p
;
523 #endif /* CFG_FLASH_PROTECTION */
525 #if defined(CFG_FLASH_PROTECTION)
526 if (!rcode
) puts (" done\n");
527 #endif /* CFG_FLASH_PROTECTION */
532 if ((n
= abbrev_spec(argv
[2], &info
, §_first
, §_last
)) != 0) {
534 puts ("Bad sector specification\n");
537 printf("%sProtect Flash Sectors %d-%d in Bank # %d\n",
538 p
? "" : "Un-", sect_first
, sect_last
,
539 (info
-flash_info
)+1);
540 for (i
= sect_first
; i
<= sect_last
; i
++) {
541 #if defined(CFG_FLASH_PROTECTION)
542 if (flash_real_protect(info
, i
, p
))
546 info
->protect
[i
] = p
;
547 #endif /* CFG_FLASH_PROTECTION */
550 #if defined(CFG_FLASH_PROTECTION)
551 if (!rcode
) puts (" done\n");
552 #endif /* CFG_FLASH_PROTECTION */
557 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
558 /* protect on/off <part-id> */
559 if ((argc
== 3) && (id_parse(argv
[2], NULL
, &dev_type
, &dev_num
) == 0)) {
561 if (find_dev_and_part(argv
[2], &dev
, &pnum
, &part
) == 0) {
562 if (dev
->id
->type
== MTD_DEV_TYPE_NOR
) {
564 info
= &flash_info
[bank
];
565 addr_first
= part
->offset
+ info
->start
[0];
566 addr_last
= addr_first
+ part
->size
- 1;
568 printf ("%sProtect Flash Parition %s, "
569 "bank %d, 0x%08lx - 0x%08lx\n",
570 p
? "" : "Un", argv
[1],
571 bank
, addr_first
, addr_last
);
573 rcode
= flash_sect_protect (p
, addr_first
, addr_last
);
577 printf("cannot %sprotect, not a NOR device\n",
585 printf ("Usage:\n%s\n", cmdtp
->usage
);
589 if (strcmp(argv
[2], "bank") == 0) {
590 bank
= simple_strtoul(argv
[3], NULL
, 16);
591 if ((bank
< 1) || (bank
> CFG_MAX_FLASH_BANKS
)) {
592 printf ("Only FLASH Banks # 1 ... # %d supported\n",
593 CFG_MAX_FLASH_BANKS
);
596 printf ("%sProtect Flash Bank # %ld\n",
597 p
? "" : "Un-", bank
);
598 info
= &flash_info
[bank
-1];
600 if (info
->flash_id
== FLASH_UNKNOWN
) {
601 puts ("missing or unknown FLASH type\n");
604 for (i
=0; i
<info
->sector_count
; ++i
) {
605 #if defined(CFG_FLASH_PROTECTION)
606 if (flash_real_protect(info
, i
, p
))
610 info
->protect
[i
] = p
;
611 #endif /* CFG_FLASH_PROTECTION */
614 #if defined(CFG_FLASH_PROTECTION)
615 if (!rcode
) puts (" done\n");
616 #endif /* CFG_FLASH_PROTECTION */
621 if (addr_spec(argv
[2], argv
[3], &addr_first
, &addr_last
) < 0){
622 printf("Bad address format\n");
626 if (addr_first
>= addr_last
) {
627 printf ("Usage:\n%s\n", cmdtp
->usage
);
630 rcode
= flash_sect_protect (p
, addr_first
, addr_last
);
631 #endif /* CFG_NO_FLASH */
636 int flash_sect_protect (int p
, ulong addr_first
, ulong addr_last
)
640 #ifdef CFG_MAX_FLASH_BANKS_DETECT
641 int s_first
[CFG_MAX_FLASH_BANKS_DETECT
], s_last
[CFG_MAX_FLASH_BANKS_DETECT
];
643 int s_first
[CFG_MAX_FLASH_BANKS
], s_last
[CFG_MAX_FLASH_BANKS
];
649 rcode
= flash_fill_sect_ranges( addr_first
, addr_last
, s_first
, s_last
, &planned
);
653 if (planned
&& (rcode
== 0)) {
654 for (bank
=0,info
=&flash_info
[0]; bank
< CFG_MAX_FLASH_BANKS
; ++bank
, ++info
) {
655 if (info
->flash_id
== FLASH_UNKNOWN
) {
659 if (s_first
[bank
]>=0 && s_first
[bank
]<=s_last
[bank
]) {
660 debug ("%sProtecting sectors %d..%d in bank %ld\n",
662 s_first
[bank
], s_last
[bank
], bank
+1);
663 protected += s_last
[bank
] - s_first
[bank
] + 1;
664 for (i
=s_first
[bank
]; i
<=s_last
[bank
]; ++i
) {
665 #if defined(CFG_FLASH_PROTECTION)
666 if (flash_real_protect(info
, i
, p
))
670 info
->protect
[i
] = p
;
671 #endif /* CFG_FLASH_PROTECTION */
675 #if defined(CFG_FLASH_PROTECTION)
677 #endif /* CFG_FLASH_PROTECTION */
679 printf ("%sProtected %d sectors\n",
680 p
? "" : "Un-", protected);
681 } else if (rcode
== 0) {
682 puts ("Error: start and/or end address"
683 " not on sector boundary\n");
688 #endif /* CFG_NO_FLASH */
691 /**************************************************/
692 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
693 # define TMP_ERASE "erase <part-id>\n - erase partition\n"
694 # define TMP_PROT_ON "protect on <part-id>\n - protect partition\n"
695 # define TMP_PROT_OFF "protect off <part-id>\n - make partition writable\n"
697 # define TMP_ERASE /* empty */
698 # define TMP_PROT_ON /* empty */
699 # define TMP_PROT_OFF /* empty */
703 flinfo
, 2, 1, do_flinfo
,
704 "flinfo - print FLASH memory information\n",
705 "\n - print information for all FLASH memory banks\n"
706 "flinfo N\n - print information for FLASH memory bank # N\n"
710 erase
, 3, 0, do_flerase
,
711 "erase - erase FLASH memory\n",
713 " - erase FLASH from addr 'start' to addr 'end'\n"
715 " - erase FLASH from addr 'start' to the end of sect "
716 "w/addr 'start'+'len'-1\n"
717 "erase N:SF[-SL]\n - erase sectors SF-SL in FLASH bank # N\n"
718 "erase bank N\n - erase FLASH bank # N\n"
720 "erase all\n - erase all FLASH banks\n"
724 protect
, 4, 0, do_protect
,
725 "protect - enable or disable FLASH write protection\n",
727 " - protect FLASH from addr 'start' to addr 'end'\n"
728 "protect on start +len\n"
729 " - protect FLASH from addr 'start' to end of sect "
730 "w/addr 'start'+'len'-1\n"
731 "protect on N:SF[-SL]\n"
732 " - protect sectors SF-SL in FLASH bank # N\n"
733 "protect on bank N\n - protect FLASH bank # N\n"
735 "protect on all\n - protect all FLASH banks\n"
736 "protect off start end\n"
737 " - make FLASH from addr 'start' to addr 'end' writable\n"
738 "protect off start +len\n"
739 " - make FLASH from addr 'start' to end of sect "
740 "w/addr 'start'+'len'-1 wrtable\n"
741 "protect off N:SF[-SL]\n"
742 " - make sectors SF-SL writable in FLASH bank # N\n"
743 "protect off bank N\n - make FLASH bank # N writable\n"
745 "protect off all\n - make all FLASH banks writable\n"