3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
14 #if defined(CONFIG_CMD_MTDPARTS)
15 #include <jffs2/jffs2.h>
17 /* partition handling routines */
18 int mtdparts_init(void);
19 int mtd_id_parse(const char *id
, const char **ret_id
, u8
*dev_type
, u8
*dev_num
);
20 int find_dev_and_part(const char *id
, struct mtd_device
**dev
,
21 u8
*part_num
, struct part_info
**part
);
24 #ifdef CONFIG_MTD_NOR_FLASH
26 #include <mtd/cfi_flash.h>
27 extern flash_info_t flash_info
[]; /* info for FLASH chips */
30 * The user interface starts numbering for Flash banks with 1
31 * for historical reasons.
35 * this routine looks for an abbreviated flash range specification.
36 * the syntax is B:SF[-SL], where B is the bank number, SF is the first
37 * sector to erase, and SL is the last sector to erase (defaults to SF).
38 * bank numbers start at 1 to be consistent with other specs, sector numbers
41 * returns: 1 - correct spec; *pinfo, *psf and *psl are
43 * 0 - doesn't look like an abbreviated spec
44 * -1 - looks like an abbreviated spec, but got
45 * a parsing error, a number out of range,
46 * or an invalid flash bank.
49 abbrev_spec (char *str
, flash_info_t
** pinfo
, int *psf
, int *psl
)
52 int bank
, first
, last
;
55 if ((p
= strchr (str
, ':')) == NULL
)
59 bank
= simple_strtoul (str
, &ep
, 10);
60 if (ep
== str
|| *ep
!= '\0' ||
61 bank
< 1 || bank
> CONFIG_SYS_MAX_FLASH_BANKS
||
62 (fp
= &flash_info
[bank
- 1])->flash_id
== FLASH_UNKNOWN
)
66 if ((p
= strchr (str
, '-')) != NULL
)
69 first
= simple_strtoul (str
, &ep
, 10);
70 if (ep
== str
|| *ep
!= '\0' || first
>= fp
->sector_count
)
74 last
= simple_strtoul (p
, &ep
, 10);
75 if (ep
== p
|| *ep
!= '\0' ||
76 last
< first
|| last
>= fp
->sector_count
)
90 * Take *addr in Flash and adjust it to fall on the end of its sector
92 int flash_sect_roundb (ulong
*addr
)
95 ulong bank
, sector_end_addr
;
99 /* find the end addr of the sector where the *addr is */
101 for (bank
= 0; bank
< CONFIG_SYS_MAX_FLASH_BANKS
&& !found
; ++bank
) {
102 info
= &flash_info
[bank
];
103 for (i
= 0; i
< info
->sector_count
&& !found
; ++i
) {
104 /* get the end address of the sector */
105 if (i
== info
->sector_count
- 1) {
106 sector_end_addr
= info
->start
[0] +
109 sector_end_addr
= info
->start
[i
+1] - 1;
112 if (*addr
<= sector_end_addr
&&
113 *addr
>= info
->start
[i
]) {
115 /* adjust *addr if necessary */
116 if (*addr
< sector_end_addr
)
117 *addr
= sector_end_addr
;
122 /* error, address not in flash */
123 printf("Error: end address (0x%08lx) not in flash!\n", *addr
);
131 * This function computes the start and end addresses for both
132 * erase and protect commands. The range of the addresses on which
133 * either of the commands is to operate can be given in two forms:
134 * 1. <cmd> start end - operate on <'start', 'end')
135 * 2. <cmd> start +length - operate on <'start', start + length)
136 * If the second form is used and the end address doesn't fall on the
137 * sector boundary, than it will be adjusted to the next sector boundary.
138 * If it isn't in the flash, the function will fail (return -1).
140 * arg1, arg2: address specification (i.e. both command arguments)
142 * addr_first, addr_last: computed address range
145 * -1: failure (bad format, bad address).
148 addr_spec(char *arg1
, char *arg2
, ulong
*addr_first
, ulong
*addr_last
)
151 char len_used
; /* indicates if the "start +length" form used */
153 *addr_first
= simple_strtoul(arg1
, &ep
, 16);
154 if (ep
== arg1
|| *ep
!= '\0')
158 if (arg2
&& *arg2
== '+'){
163 *addr_last
= simple_strtoul(arg2
, &ep
, 16);
164 if (ep
== arg2
|| *ep
!= '\0')
169 * *addr_last has the length, compute correct *addr_last
170 * XXX watch out for the integer overflow! Right now it is
171 * checked for in both the callers.
173 *addr_last
= *addr_first
+ *addr_last
- 1;
176 * It may happen that *addr_last doesn't fall on the sector
177 * boundary. We want to round such an address to the next
178 * sector boundary, so that the commands don't fail later on.
181 if (flash_sect_roundb(addr_last
) > 0)
183 } /* "start +length" from used */
189 flash_fill_sect_ranges (ulong addr_first
, ulong addr_last
,
190 int *s_first
, int *s_last
,
199 for (bank
=0; bank
< CONFIG_SYS_MAX_FLASH_BANKS
; ++bank
) {
200 s_first
[bank
] = -1; /* first sector to erase */
201 s_last
[bank
] = -1; /* last sector to erase */
204 for (bank
=0,info
= &flash_info
[0];
205 (bank
< CONFIG_SYS_MAX_FLASH_BANKS
) && (addr_first
<= addr_last
);
211 if (info
->flash_id
== FLASH_UNKNOWN
) {
215 b_end
= info
->start
[0] + info
->size
- 1; /* bank end addr */
216 s_end
= info
->sector_count
- 1; /* last sector */
219 for (sect
=0; sect
< info
->sector_count
; ++sect
) {
220 ulong end
; /* last address in current sect */
222 end
= (sect
== s_end
) ? b_end
: info
->start
[sect
+ 1] - 1;
224 if (addr_first
> end
)
226 if (addr_last
< info
->start
[sect
])
229 if (addr_first
== info
->start
[sect
]) {
230 s_first
[bank
] = sect
;
232 if (addr_last
== end
) {
236 if (s_first
[bank
] >= 0) {
237 if (s_last
[bank
] < 0) {
238 if (addr_last
> b_end
) {
239 s_last
[bank
] = s_end
;
241 puts ("Error: end address"
242 " not on sector boundary\n");
247 if (s_last
[bank
] < s_first
[bank
]) {
248 puts ("Error: end sector"
249 " precedes start sector\n");
254 addr_first
= (sect
== s_end
) ? b_end
+ 1: info
->start
[sect
+ 1];
255 (*s_count
) += s_last
[bank
] - s_first
[bank
] + 1;
256 } else if (addr_first
>= info
->start
[0] && addr_first
< b_end
) {
257 puts ("Error: start address not on sector boundary\n");
260 } else if (s_last
[bank
] >= 0) {
261 puts ("Error: cannot span across banks when they are"
262 " mapped in reverse order\n");
270 #endif /* CONFIG_MTD_NOR_FLASH */
272 static int do_flinfo(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
274 #ifdef CONFIG_MTD_NOR_FLASH
278 #ifdef CONFIG_MTD_NOR_FLASH
279 if (argc
== 1) { /* print info for all FLASH banks */
280 for (bank
=0; bank
<CONFIG_SYS_MAX_FLASH_BANKS
; ++bank
) {
281 printf ("\nBank # %ld: ", bank
+1);
283 flash_print_info (&flash_info
[bank
]);
288 bank
= simple_strtoul(argv
[1], NULL
, 16);
289 if ((bank
< 1) || (bank
> CONFIG_SYS_MAX_FLASH_BANKS
)) {
290 printf ("Only FLASH Banks # 1 ... # %d supported\n",
291 CONFIG_SYS_MAX_FLASH_BANKS
);
294 printf ("\nBank # %ld: ", bank
);
295 flash_print_info (&flash_info
[bank
-1]);
296 #endif /* CONFIG_MTD_NOR_FLASH */
300 static int do_flerase(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
302 #ifdef CONFIG_MTD_NOR_FLASH
303 flash_info_t
*info
= NULL
;
304 ulong bank
, addr_first
, addr_last
;
305 int n
, sect_first
= 0, sect_last
= 0;
306 #if defined(CONFIG_CMD_MTDPARTS)
307 struct mtd_device
*dev
;
308 struct part_info
*part
;
309 u8 dev_type
, dev_num
, pnum
;
314 return CMD_RET_USAGE
;
316 if (strcmp(argv
[1], "all") == 0) {
317 for (bank
=1; bank
<=CONFIG_SYS_MAX_FLASH_BANKS
; ++bank
) {
318 printf ("Erase Flash Bank # %ld ", bank
);
319 info
= &flash_info
[bank
-1];
320 rcode
= flash_erase (info
, 0, info
->sector_count
-1);
325 if ((n
= abbrev_spec(argv
[1], &info
, §_first
, §_last
)) != 0) {
327 puts ("Bad sector specification\n");
330 printf ("Erase Flash Sectors %d-%d in Bank # %zu ",
331 sect_first
, sect_last
, (info
-flash_info
)+1);
332 rcode
= flash_erase(info
, sect_first
, sect_last
);
336 #if defined(CONFIG_CMD_MTDPARTS)
337 /* erase <part-id> - erase partition */
338 if ((argc
== 2) && (mtd_id_parse(argv
[1], NULL
, &dev_type
, &dev_num
) == 0)) {
340 if (find_dev_and_part(argv
[1], &dev
, &pnum
, &part
) == 0) {
341 if (dev
->id
->type
== MTD_DEV_TYPE_NOR
) {
343 info
= &flash_info
[bank
];
344 addr_first
= part
->offset
+ info
->start
[0];
345 addr_last
= addr_first
+ part
->size
- 1;
347 printf ("Erase Flash Partition %s, "
348 "bank %ld, 0x%08lx - 0x%08lx ",
349 argv
[1], bank
, addr_first
,
352 rcode
= flash_sect_erase(addr_first
, addr_last
);
356 printf("cannot erase, not a NOR device\n");
363 return CMD_RET_USAGE
;
365 if (strcmp(argv
[1], "bank") == 0) {
366 bank
= simple_strtoul(argv
[2], NULL
, 16);
367 if ((bank
< 1) || (bank
> CONFIG_SYS_MAX_FLASH_BANKS
)) {
368 printf ("Only FLASH Banks # 1 ... # %d supported\n",
369 CONFIG_SYS_MAX_FLASH_BANKS
);
372 printf ("Erase Flash Bank # %ld ", bank
);
373 info
= &flash_info
[bank
-1];
374 rcode
= flash_erase (info
, 0, info
->sector_count
-1);
378 if (addr_spec(argv
[1], argv
[2], &addr_first
, &addr_last
) < 0){
379 printf ("Bad address format\n");
383 if (addr_first
>= addr_last
)
384 return CMD_RET_USAGE
;
386 rcode
= flash_sect_erase(addr_first
, addr_last
);
390 #endif /* CONFIG_MTD_NOR_FLASH */
393 #ifdef CONFIG_MTD_NOR_FLASH
394 int flash_sect_erase (ulong addr_first
, ulong addr_last
)
398 int s_first
[CONFIG_SYS_MAX_FLASH_BANKS
], s_last
[CONFIG_SYS_MAX_FLASH_BANKS
];
403 rcode
= flash_fill_sect_ranges (addr_first
, addr_last
,
404 s_first
, s_last
, &planned
);
406 if (planned
&& (rcode
== 0)) {
407 for (bank
=0,info
= &flash_info
[0];
408 (bank
< CONFIG_SYS_MAX_FLASH_BANKS
) && (rcode
== 0);
410 if (s_first
[bank
]>=0) {
411 erased
+= s_last
[bank
] - s_first
[bank
] + 1;
412 debug ("Erase Flash from 0x%08lx to 0x%08lx "
414 info
->start
[s_first
[bank
]],
415 (s_last
[bank
] == info
->sector_count
) ?
416 info
->start
[0] + info
->size
- 1:
417 info
->start
[s_last
[bank
]+1] - 1,
419 rcode
= flash_erase (info
, s_first
[bank
], s_last
[bank
]);
423 printf("Erased %d sectors\n", erased
);
424 } else if (rcode
== 0) {
425 puts ("Error: start and/or end address"
426 " not on sector boundary\n");
431 #endif /* CONFIG_MTD_NOR_FLASH */
433 static int do_protect(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
436 #ifdef CONFIG_MTD_NOR_FLASH
437 flash_info_t
*info
= NULL
;
439 int i
, n
, sect_first
= 0, sect_last
= 0;
440 #if defined(CONFIG_CMD_MTDPARTS)
441 struct mtd_device
*dev
;
442 struct part_info
*part
;
443 u8 dev_type
, dev_num
, pnum
;
445 #endif /* CONFIG_MTD_NOR_FLASH */
446 #if defined(CONFIG_MTD_NOR_FLASH)
448 ulong addr_first
, addr_last
;
452 return CMD_RET_USAGE
;
454 #if defined(CONFIG_MTD_NOR_FLASH)
455 if (strcmp(argv
[1], "off") == 0)
457 else if (strcmp(argv
[1], "on") == 0)
460 return CMD_RET_USAGE
;
463 #ifdef CONFIG_MTD_NOR_FLASH
464 if (strcmp(argv
[2], "all") == 0) {
465 for (bank
=1; bank
<=CONFIG_SYS_MAX_FLASH_BANKS
; ++bank
) {
466 info
= &flash_info
[bank
-1];
467 if (info
->flash_id
== FLASH_UNKNOWN
) {
470 printf ("%sProtect Flash Bank # %ld\n",
471 p
? "" : "Un-", bank
);
473 for (i
=0; i
<info
->sector_count
; ++i
) {
474 #if defined(CONFIG_SYS_FLASH_PROTECTION)
475 if (flash_real_protect(info
, i
, p
))
479 info
->protect
[i
] = p
;
480 #endif /* CONFIG_SYS_FLASH_PROTECTION */
482 #if defined(CONFIG_SYS_FLASH_PROTECTION)
483 if (!rcode
) puts (" done\n");
484 #endif /* CONFIG_SYS_FLASH_PROTECTION */
489 if ((n
= abbrev_spec(argv
[2], &info
, §_first
, §_last
)) != 0) {
491 puts ("Bad sector specification\n");
494 printf("%sProtect Flash Sectors %d-%d in Bank # %zu\n",
495 p
? "" : "Un-", sect_first
, sect_last
,
496 (info
-flash_info
)+1);
497 for (i
= sect_first
; i
<= sect_last
; i
++) {
498 #if defined(CONFIG_SYS_FLASH_PROTECTION)
499 if (flash_real_protect(info
, i
, p
))
503 info
->protect
[i
] = p
;
504 #endif /* CONFIG_SYS_FLASH_PROTECTION */
507 #if defined(CONFIG_SYS_FLASH_PROTECTION)
508 if (!rcode
) puts (" done\n");
509 #endif /* CONFIG_SYS_FLASH_PROTECTION */
514 #if defined(CONFIG_CMD_MTDPARTS)
515 /* protect on/off <part-id> */
516 if ((argc
== 3) && (mtd_id_parse(argv
[2], NULL
, &dev_type
, &dev_num
) == 0)) {
518 if (find_dev_and_part(argv
[2], &dev
, &pnum
, &part
) == 0) {
519 if (dev
->id
->type
== MTD_DEV_TYPE_NOR
) {
521 info
= &flash_info
[bank
];
522 addr_first
= part
->offset
+ info
->start
[0];
523 addr_last
= addr_first
+ part
->size
- 1;
525 printf ("%sProtect Flash Partition %s, "
526 "bank %ld, 0x%08lx - 0x%08lx\n",
527 p
? "" : "Un", argv
[1],
528 bank
, addr_first
, addr_last
);
530 rcode
= flash_sect_protect (p
, addr_first
, addr_last
);
534 printf("cannot %sprotect, not a NOR device\n",
542 return CMD_RET_USAGE
;
544 if (strcmp(argv
[2], "bank") == 0) {
545 bank
= simple_strtoul(argv
[3], NULL
, 16);
546 if ((bank
< 1) || (bank
> CONFIG_SYS_MAX_FLASH_BANKS
)) {
547 printf ("Only FLASH Banks # 1 ... # %d supported\n",
548 CONFIG_SYS_MAX_FLASH_BANKS
);
551 printf ("%sProtect Flash Bank # %ld\n",
552 p
? "" : "Un-", bank
);
553 info
= &flash_info
[bank
-1];
555 if (info
->flash_id
== FLASH_UNKNOWN
) {
556 puts ("missing or unknown FLASH type\n");
559 for (i
=0; i
<info
->sector_count
; ++i
) {
560 #if defined(CONFIG_SYS_FLASH_PROTECTION)
561 if (flash_real_protect(info
, i
, p
))
565 info
->protect
[i
] = p
;
566 #endif /* CONFIG_SYS_FLASH_PROTECTION */
569 #if defined(CONFIG_SYS_FLASH_PROTECTION)
570 if (!rcode
) puts (" done\n");
571 #endif /* CONFIG_SYS_FLASH_PROTECTION */
576 if (addr_spec(argv
[2], argv
[3], &addr_first
, &addr_last
) < 0){
577 printf("Bad address format\n");
581 if (addr_first
>= addr_last
)
582 return CMD_RET_USAGE
;
584 rcode
= flash_sect_protect (p
, addr_first
, addr_last
);
585 #endif /* CONFIG_MTD_NOR_FLASH */
589 #ifdef CONFIG_MTD_NOR_FLASH
590 int flash_sect_protect (int p
, ulong addr_first
, ulong addr_last
)
594 int s_first
[CONFIG_SYS_MAX_FLASH_BANKS
], s_last
[CONFIG_SYS_MAX_FLASH_BANKS
];
599 rcode
= flash_fill_sect_ranges( addr_first
, addr_last
, s_first
, s_last
, &planned
);
603 if (planned
&& (rcode
== 0)) {
604 for (bank
=0,info
= &flash_info
[0]; bank
< CONFIG_SYS_MAX_FLASH_BANKS
; ++bank
, ++info
) {
605 if (info
->flash_id
== FLASH_UNKNOWN
) {
609 if (s_first
[bank
]>=0 && s_first
[bank
]<=s_last
[bank
]) {
610 debug ("%sProtecting sectors %d..%d in bank %ld\n",
612 s_first
[bank
], s_last
[bank
], bank
+1);
613 protected += s_last
[bank
] - s_first
[bank
] + 1;
614 for (i
=s_first
[bank
]; i
<=s_last
[bank
]; ++i
) {
615 #if defined(CONFIG_SYS_FLASH_PROTECTION)
616 if (flash_real_protect(info
, i
, p
))
620 info
->protect
[i
] = p
;
621 #endif /* CONFIG_SYS_FLASH_PROTECTION */
625 #if defined(CONFIG_SYS_FLASH_PROTECTION)
627 #endif /* CONFIG_SYS_FLASH_PROTECTION */
629 printf ("%sProtected %d sectors\n",
630 p
? "" : "Un-", protected);
631 } else if (rcode
== 0) {
632 puts ("Error: start and/or end address"
633 " not on sector boundary\n");
638 #endif /* CONFIG_MTD_NOR_FLASH */
641 /**************************************************/
642 #if defined(CONFIG_CMD_MTDPARTS)
643 # define TMP_ERASE "erase <part-id>\n - erase partition\n"
644 # define TMP_PROT_ON "protect on <part-id>\n - protect partition\n"
645 # define TMP_PROT_OFF "protect off <part-id>\n - make partition writable\n"
647 # define TMP_ERASE /* empty */
648 # define TMP_PROT_ON /* empty */
649 # define TMP_PROT_OFF /* empty */
653 flinfo
, 2, 1, do_flinfo
,
654 "print FLASH memory information",
655 "\n - print information for all FLASH memory banks\n"
656 "flinfo N\n - print information for FLASH memory bank # N"
660 erase
, 3, 0, do_flerase
,
661 "erase FLASH memory",
663 " - erase FLASH from addr 'start' to addr 'end'\n"
665 " - erase FLASH from addr 'start' to the end of sect "
666 "w/addr 'start'+'len'-1\n"
667 "erase N:SF[-SL]\n - erase sectors SF-SL in FLASH bank # N\n"
668 "erase bank N\n - erase FLASH bank # N\n"
670 "erase all\n - erase all FLASH banks"
674 protect
, 4, 0, do_protect
,
675 "enable or disable FLASH write protection",
677 " - protect FLASH from addr 'start' to addr 'end'\n"
678 "protect on start +len\n"
679 " - protect FLASH from addr 'start' to end of sect "
680 "w/addr 'start'+'len'-1\n"
681 "protect on N:SF[-SL]\n"
682 " - protect sectors SF-SL in FLASH bank # N\n"
683 "protect on bank N\n - protect FLASH bank # N\n"
685 "protect on all\n - protect all FLASH banks\n"
686 "protect off start end\n"
687 " - make FLASH from addr 'start' to addr 'end' writable\n"
688 "protect off start +len\n"
689 " - make FLASH from addr 'start' to end of sect "
690 "w/addr 'start'+'len'-1 wrtable\n"
691 "protect off N:SF[-SL]\n"
692 " - make sectors SF-SL writable in FLASH bank # N\n"
693 "protect off bank N\n - make FLASH bank # N writable\n"
695 "protect off all\n - make all FLASH banks writable"