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git.ipfire.org Git - people/ms/u-boot.git/blob - common/cmd_flash.c
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,
31 #ifdef CONFIG_HAS_DATAFLASH
32 #include <dataflash.h>
35 #if (CONFIG_COMMANDS & CFG_CMD_FLASH)
37 extern flash_info_t flash_info
[]; /* info for FLASH chips */
40 * The user interface starts numbering for Flash banks with 1
41 * for historical reasons.
45 * this routine looks for an abbreviated flash range specification.
46 * the syntax is B:SF[-SL], where B is the bank number, SF is the first
47 * sector to erase, and SL is the last sector to erase (defaults to SF).
48 * bank numbers start at 1 to be consistent with other specs, sector numbers
51 * returns: 1 - correct spec; *pinfo, *psf and *psl are
53 * 0 - doesn't look like an abbreviated spec
54 * -1 - looks like an abbreviated spec, but got
55 * a parsing error, a number out of range,
56 * or an invalid flash bank.
59 abbrev_spec (char *str
, flash_info_t
** pinfo
, int *psf
, int *psl
)
62 int bank
, first
, last
;
65 if ((p
= strchr (str
, ':')) == NULL
)
69 bank
= simple_strtoul (str
, &ep
, 10);
70 if (ep
== str
|| *ep
!= '\0' ||
71 bank
< 1 || bank
> CFG_MAX_FLASH_BANKS
||
72 (fp
= &flash_info
[bank
- 1])->flash_id
== FLASH_UNKNOWN
)
76 if ((p
= strchr (str
, '-')) != NULL
)
79 first
= simple_strtoul (str
, &ep
, 10);
80 if (ep
== str
|| *ep
!= '\0' || first
>= fp
->sector_count
)
84 last
= simple_strtoul (p
, &ep
, 10);
85 if (ep
== p
|| *ep
!= '\0' ||
86 last
< first
|| last
>= fp
->sector_count
)
100 flash_fill_sect_ranges (ulong addr_first
, ulong addr_last
,
101 int *s_first
, int *s_last
,
110 for (bank
=0; bank
< CFG_MAX_FLASH_BANKS
; ++bank
) {
111 s_first
[bank
] = -1; /* first sector to erase */
112 s_last
[bank
] = -1; /* last sector to erase */
115 for (bank
=0,info
=&flash_info
[0];
116 (bank
< CFG_MAX_FLASH_BANKS
) && (addr_first
<= addr_last
);
122 if (info
->flash_id
== FLASH_UNKNOWN
) {
126 b_end
= info
->start
[0] + info
->size
- 1; /* bank end addr */
127 s_end
= info
->sector_count
- 1; /* last sector */
130 for (sect
=0; sect
< info
->sector_count
; ++sect
) {
131 ulong end
; /* last address in current sect */
133 end
= (sect
== s_end
) ? b_end
: info
->start
[sect
+ 1] - 1;
135 if (addr_first
> end
)
137 if (addr_last
< info
->start
[sect
])
140 if (addr_first
== info
->start
[sect
]) {
141 s_first
[bank
] = sect
;
143 if (addr_last
== end
) {
147 if (s_first
[bank
] >= 0) {
148 if (s_last
[bank
] < 0) {
149 if (addr_last
> b_end
) {
150 s_last
[bank
] = s_end
;
152 printf ("Error: end address"
153 " not on sector boundary\n");
158 if (s_last
[bank
] < s_first
[bank
]) {
159 printf ("Error: end sector"
160 " precedes start sector\n");
165 addr_first
= (sect
== s_end
) ? b_end
+ 1: info
->start
[sect
+ 1];
166 (*s_count
) += s_last
[bank
] - s_first
[bank
] + 1;
173 int do_flinfo ( cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
177 #ifdef CONFIG_HAS_DATAFLASH
178 dataflash_print_info();
181 if (argc
== 1) { /* print info for all FLASH banks */
182 for (bank
=0; bank
<CFG_MAX_FLASH_BANKS
; ++bank
) {
183 printf ("\nBank # %ld: ", bank
+1);
185 flash_print_info (&flash_info
[bank
]);
190 bank
= simple_strtoul(argv
[1], NULL
, 16);
191 if ((bank
< 1) || (bank
> CFG_MAX_FLASH_BANKS
)) {
192 printf ("Only FLASH Banks # 1 ... # %d supported\n",
193 CFG_MAX_FLASH_BANKS
);
196 printf ("\nBank # %ld: ", bank
);
197 flash_print_info (&flash_info
[bank
-1]);
200 int do_flerase (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
203 ulong bank
, addr_first
, addr_last
;
204 int n
, sect_first
, sect_last
;
208 printf ("Usage:\n%s\n", cmdtp
->usage
);
212 if (strcmp(argv
[1], "all") == 0) {
213 for (bank
=1; bank
<=CFG_MAX_FLASH_BANKS
; ++bank
) {
214 printf ("Erase Flash Bank # %ld ", bank
);
215 info
= &flash_info
[bank
-1];
216 rcode
= flash_erase (info
, 0, info
->sector_count
-1);
221 if ((n
= abbrev_spec(argv
[1], &info
, §_first
, §_last
)) != 0) {
223 printf("Bad sector specification\n");
226 printf ("Erase Flash Sectors %d-%d in Bank # %d ",
227 sect_first
, sect_last
, (info
-flash_info
)+1);
228 rcode
= flash_erase(info
, sect_first
, sect_last
);
233 printf ("Usage:\n%s\n", cmdtp
->usage
);
237 if (strcmp(argv
[1], "bank") == 0) {
238 bank
= simple_strtoul(argv
[2], NULL
, 16);
239 if ((bank
< 1) || (bank
> CFG_MAX_FLASH_BANKS
)) {
240 printf ("Only FLASH Banks # 1 ... # %d supported\n",
241 CFG_MAX_FLASH_BANKS
);
244 printf ("Erase Flash Bank # %ld ", bank
);
245 info
= &flash_info
[bank
-1];
246 rcode
= flash_erase (info
, 0, info
->sector_count
-1);
250 addr_first
= simple_strtoul(argv
[1], NULL
, 16);
251 addr_last
= simple_strtoul(argv
[2], NULL
, 16);
253 if (addr_first
>= addr_last
) {
254 printf ("Usage:\n%s\n", cmdtp
->usage
);
258 rcode
= flash_sect_erase(addr_first
, addr_last
);
262 int flash_sect_erase (ulong addr_first
, ulong addr_last
)
266 int s_first
[CFG_MAX_FLASH_BANKS
], s_last
[CFG_MAX_FLASH_BANKS
];
271 rcode
= flash_fill_sect_ranges (addr_first
, addr_last
,
272 s_first
, s_last
, &planned
);
274 if (planned
&& (rcode
== 0)) {
275 for (bank
=0,info
=&flash_info
[0];
276 (bank
< CFG_MAX_FLASH_BANKS
) && (rcode
== 0);
278 if (s_first
[bank
]>=0) {
279 erased
+= s_last
[bank
] - s_first
[bank
] + 1;
280 printf ("Erase Flash from 0x%08lx to 0x%08lx "
282 info
->start
[s_first
[bank
]],
283 (s_last
[bank
] == info
->sector_count
) ?
284 info
->start
[0] + info
->size
- 1:
285 info
->start
[s_last
[bank
]+1] - 1,
287 rcode
= flash_erase (info
, s_first
[bank
], s_last
[bank
]);
290 printf ("Erased %d sectors\n", erased
);
291 } else if (rcode
== 0) {
292 printf ("Error: start and/or end address"
293 " not on sector boundary\n");
299 int do_protect (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
302 ulong bank
, addr_first
, addr_last
;
303 int i
, p
, n
, sect_first
, sect_last
;
307 printf ("Usage:\n%s\n", cmdtp
->usage
);
311 if (strcmp(argv
[1], "off") == 0) {
313 } else if (strcmp(argv
[1], "on") == 0) {
316 printf ("Usage:\n%s\n", cmdtp
->usage
);
320 if (strcmp(argv
[2], "all") == 0) {
321 for (bank
=1; bank
<=CFG_MAX_FLASH_BANKS
; ++bank
) {
322 info
= &flash_info
[bank
-1];
323 if (info
->flash_id
== FLASH_UNKNOWN
) {
326 printf ("%sProtect Flash Bank # %ld\n",
327 p
? "" : "Un-", bank
);
329 for (i
=0; i
<info
->sector_count
; ++i
) {
330 #if defined(CFG_FLASH_PROTECTION)
331 if (flash_real_protect(info
, i
, p
))
335 info
->protect
[i
] = p
;
336 #endif /* CFG_FLASH_PROTECTION */
340 #if defined(CFG_FLASH_PROTECTION)
341 if (!rcode
) puts (" done\n");
342 #endif /* CFG_FLASH_PROTECTION */
347 if ((n
= abbrev_spec(argv
[2], &info
, §_first
, §_last
)) != 0) {
349 printf("Bad sector specification\n");
352 printf("%sProtect Flash Sectors %d-%d in Bank # %d\n",
353 p
? "" : "Un-", sect_first
, sect_last
,
354 (info
-flash_info
)+1);
355 for (i
= sect_first
; i
<= sect_last
; i
++) {
356 #if defined(CFG_FLASH_PROTECTION)
357 if (flash_real_protect(info
, i
, p
))
361 info
->protect
[i
] = p
;
362 #endif /* CFG_FLASH_PROTECTION */
365 #if defined(CFG_FLASH_PROTECTION)
366 if (!rcode
) puts (" done\n");
367 #endif /* CFG_FLASH_PROTECTION */
373 printf ("Usage:\n%s\n", cmdtp
->usage
);
377 if (strcmp(argv
[2], "bank") == 0) {
378 bank
= simple_strtoul(argv
[3], NULL
, 16);
379 if ((bank
< 1) || (bank
> CFG_MAX_FLASH_BANKS
)) {
380 printf ("Only FLASH Banks # 1 ... # %d supported\n",
381 CFG_MAX_FLASH_BANKS
);
384 printf ("%sProtect Flash Bank # %ld\n",
385 p
? "" : "Un-", bank
);
386 info
= &flash_info
[bank
-1];
388 if (info
->flash_id
== FLASH_UNKNOWN
) {
389 printf ("missing or unknown FLASH type\n");
392 for (i
=0; i
<info
->sector_count
; ++i
) {
393 #if defined(CFG_FLASH_PROTECTION)
394 if (flash_real_protect(info
, i
, p
))
398 info
->protect
[i
] = p
;
399 #endif /* CFG_FLASH_PROTECTION */
402 #if defined(CFG_FLASH_PROTECTION)
403 if (!rcode
) puts (" done\n");
404 #endif /* CFG_FLASH_PROTECTION */
409 addr_first
= simple_strtoul(argv
[2], NULL
, 16);
410 addr_last
= simple_strtoul(argv
[3], NULL
, 16);
412 if (addr_first
>= addr_last
) {
413 printf ("Usage:\n%s\n", cmdtp
->usage
);
416 rcode
= flash_sect_protect (p
, addr_first
, addr_last
);
421 int flash_sect_protect (int p
, ulong addr_first
, ulong addr_last
)
425 int s_first
[CFG_MAX_FLASH_BANKS
], s_last
[CFG_MAX_FLASH_BANKS
];
430 rcode
= flash_fill_sect_ranges( addr_first
, addr_last
, s_first
, s_last
, &planned
);
434 if (planned
&& (rcode
== 0)) {
435 for (bank
=0,info
=&flash_info
[0]; bank
< CFG_MAX_FLASH_BANKS
; ++bank
, ++info
) {
436 if (info
->flash_id
== FLASH_UNKNOWN
) {
440 if (s_first
[bank
]>=0 && s_first
[bank
]<=s_last
[bank
]) {
441 debug ("Protecting sectors %d..%d in bank %ld\n",
442 s_first
[bank
], s_last
[bank
], bank
+1);
443 protected += s_last
[bank
] - s_first
[bank
] + 1;
444 for (i
=s_first
[bank
]; i
<=s_last
[bank
]; ++i
) {
445 #if defined(CFG_FLASH_PROTECTION)
446 if (flash_real_protect(info
, i
, p
))
450 info
->protect
[i
] = p
;
451 #endif /* CFG_FLASH_PROTECTION */
454 #if defined(CFG_FLASH_PROTECTION)
455 if (!rcode
) putc ('\n');
456 #endif /* CFG_FLASH_PROTECTION */
459 printf ("%sProtected %d sectors\n",
460 p
? "" : "Un-", protected);
461 } else if (rcode
== 0) {
462 printf ("Error: start and/or end address"
463 " not on sector boundary\n");
470 /**************************************************/
473 flinfo
, 2, 1, do_flinfo
,
474 "flinfo - print FLASH memory information\n",
475 "\n - print information for all FLASH memory banks\n"
476 "flinfo N\n - print information for FLASH memory bank # N\n"
480 erase
, 3, 1, do_flerase
,
481 "erase - erase FLASH memory\n",
483 " - erase FLASH from addr 'start' to addr 'end'\n"
484 "erase N:SF[-SL]\n - erase sectors SF-SL in FLASH bank # N\n"
485 "erase bank N\n - erase FLASH bank # N\n"
486 "erase all\n - erase all FLASH banks\n"
490 protect
, 4, 1, do_protect
,
491 "protect - enable or disable FLASH write protection\n",
493 " - protect FLASH from addr 'start' to addr 'end'\n"
494 "protect on N:SF[-SL]\n"
495 " - protect sectors SF-SL in FLASH bank # N\n"
496 "protect on bank N\n - protect FLASH bank # N\n"
497 "protect on all\n - protect all FLASH banks\n"
498 "protect off start end\n"
499 " - make FLASH from addr 'start' to addr 'end' writable\n"
500 "protect off N:SF[-SL]\n"
501 " - make sectors SF-SL writable in FLASH bank # N\n"
502 "protect off bank N\n - make FLASH bank # N writable\n"
503 "protect off all\n - make all FLASH banks writable\n"
506 #endif /* CFG_CMD_FLASH */