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38a24a61 WD |
1 | /* |
2 | * (C) Copyright 2000 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
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. | |
12 | * | |
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. | |
17 | * | |
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, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | /* | |
25 | * FLASH support | |
26 | */ | |
27 | #include <common.h> | |
28 | #include <command.h> | |
8bde7f77 | 29 | |
38a24a61 | 30 | |
2abbe075 WD |
31 | #ifdef CONFIG_HAS_DATAFLASH |
32 | #include <dataflash.h> | |
33 | #endif | |
34 | ||
38a24a61 WD |
35 | #if (CONFIG_COMMANDS & CFG_CMD_FLASH) |
36 | ||
37 | extern flash_info_t flash_info[]; /* info for FLASH chips */ | |
38 | ||
39 | /* | |
40 | * The user interface starts numbering for Flash banks with 1 | |
41 | * for historical reasons. | |
42 | */ | |
43 | ||
44 | /* | |
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 | |
49 | * start at zero. | |
50 | * | |
51 | * returns: 1 - correct spec; *pinfo, *psf and *psl are | |
52 | * set appropriately | |
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. | |
57 | */ | |
58 | static int | |
bdccc4fe | 59 | abbrev_spec (char *str, flash_info_t ** pinfo, int *psf, int *psl) |
38a24a61 | 60 | { |
bdccc4fe WD |
61 | flash_info_t *fp; |
62 | int bank, first, last; | |
63 | char *p, *ep; | |
38a24a61 | 64 | |
bdccc4fe WD |
65 | if ((p = strchr (str, ':')) == NULL) |
66 | return 0; | |
67 | *p++ = '\0'; | |
38a24a61 | 68 | |
bdccc4fe WD |
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) | |
73 | return -1; | |
74 | ||
75 | str = p; | |
76 | if ((p = strchr (str, '-')) != NULL) | |
77 | *p++ = '\0'; | |
78 | ||
79 | first = simple_strtoul (str, &ep, 10); | |
80 | if (ep == str || *ep != '\0' || first >= fp->sector_count) | |
81 | return -1; | |
82 | ||
83 | if (p != NULL) { | |
84 | last = simple_strtoul (p, &ep, 10); | |
85 | if (ep == p || *ep != '\0' || | |
86 | last < first || last >= fp->sector_count) | |
87 | return -1; | |
88 | } else { | |
89 | last = first; | |
90 | } | |
38a24a61 | 91 | |
bdccc4fe WD |
92 | *pinfo = fp; |
93 | *psf = first; | |
94 | *psl = last; | |
95 | ||
96 | return 1; | |
97 | } | |
98 | ||
99 | static int | |
100 | flash_fill_sect_ranges (ulong addr_first, ulong addr_last, | |
101 | int *s_first, int *s_last, | |
102 | int *s_count ) | |
103 | { | |
104 | flash_info_t *info; | |
105 | ulong bank; | |
106 | int rcode = 0; | |
107 | ||
108 | *s_count = 0; | |
109 | ||
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 */ | |
113 | } | |
114 | ||
115 | for (bank=0,info=&flash_info[0]; | |
116 | (bank < CFG_MAX_FLASH_BANKS) && (addr_first <= addr_last); | |
117 | ++bank, ++info) { | |
118 | ulong b_end; | |
119 | int sect; | |
120 | short s_end; | |
121 | ||
122 | if (info->flash_id == FLASH_UNKNOWN) { | |
123 | continue; | |
124 | } | |
125 | ||
126 | b_end = info->start[0] + info->size - 1; /* bank end addr */ | |
127 | s_end = info->sector_count - 1; /* last sector */ | |
128 | ||
129 | ||
130 | for (sect=0; sect < info->sector_count; ++sect) { | |
131 | ulong end; /* last address in current sect */ | |
38a24a61 | 132 | |
bdccc4fe | 133 | end = (sect == s_end) ? b_end : info->start[sect + 1] - 1; |
38a24a61 | 134 | |
bdccc4fe WD |
135 | if (addr_first > end) |
136 | continue; | |
137 | if (addr_last < info->start[sect]) | |
138 | continue; | |
38a24a61 | 139 | |
bdccc4fe WD |
140 | if (addr_first == info->start[sect]) { |
141 | s_first[bank] = sect; | |
142 | } | |
143 | if (addr_last == end) { | |
144 | s_last[bank] = sect; | |
145 | } | |
146 | } | |
147 | if (s_first[bank] >= 0) { | |
148 | if (s_last[bank] < 0) { | |
149 | if (addr_last > b_end) { | |
150 | s_last[bank] = s_end; | |
151 | } else { | |
152 | printf ("Error: end address" | |
153 | " not on sector boundary\n"); | |
154 | rcode = 1; | |
155 | break; | |
156 | } | |
157 | } | |
158 | if (s_last[bank] < s_first[bank]) { | |
159 | printf ("Error: end sector" | |
160 | " precedes start sector\n"); | |
161 | rcode = 1; | |
162 | break; | |
163 | } | |
164 | sect = s_last[bank]; | |
165 | addr_first = (sect == s_end) ? b_end + 1: info->start[sect + 1]; | |
166 | (*s_count) += s_last[bank] - s_first[bank] + 1; | |
167 | } | |
168 | } | |
38a24a61 | 169 | |
bdccc4fe | 170 | return rcode; |
38a24a61 | 171 | } |
bdccc4fe | 172 | |
38a24a61 WD |
173 | int do_flinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) |
174 | { | |
175 | ulong bank; | |
176 | ||
2abbe075 WD |
177 | #ifdef CONFIG_HAS_DATAFLASH |
178 | dataflash_print_info(); | |
179 | #endif | |
180 | ||
38a24a61 WD |
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); | |
184 | ||
185 | flash_print_info (&flash_info[bank]); | |
186 | } | |
187 | return 0; | |
188 | } | |
189 | ||
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); | |
194 | return 1; | |
195 | } | |
196 | printf ("\nBank # %ld: ", bank); | |
197 | flash_print_info (&flash_info[bank-1]); | |
198 | return 0; | |
199 | } | |
200 | int do_flerase (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
201 | { | |
202 | flash_info_t *info; | |
203 | ulong bank, addr_first, addr_last; | |
204 | int n, sect_first, sect_last; | |
205 | int rcode = 0; | |
206 | ||
207 | if (argc < 2) { | |
208 | printf ("Usage:\n%s\n", cmdtp->usage); | |
209 | return 1; | |
210 | } | |
211 | ||
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); | |
217 | } | |
218 | return rcode; | |
219 | } | |
220 | ||
221 | if ((n = abbrev_spec(argv[1], &info, §_first, §_last)) != 0) { | |
222 | if (n < 0) { | |
223 | printf("Bad sector specification\n"); | |
224 | return 1; | |
225 | } | |
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); | |
229 | return rcode; | |
230 | } | |
231 | ||
232 | if (argc != 3) { | |
233 | printf ("Usage:\n%s\n", cmdtp->usage); | |
234 | return 1; | |
235 | } | |
236 | ||
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); | |
242 | return 1; | |
243 | } | |
244 | printf ("Erase Flash Bank # %ld ", bank); | |
245 | info = &flash_info[bank-1]; | |
246 | rcode = flash_erase (info, 0, info->sector_count-1); | |
247 | return rcode; | |
248 | } | |
249 | ||
250 | addr_first = simple_strtoul(argv[1], NULL, 16); | |
251 | addr_last = simple_strtoul(argv[2], NULL, 16); | |
252 | ||
253 | if (addr_first >= addr_last) { | |
254 | printf ("Usage:\n%s\n", cmdtp->usage); | |
255 | return 1; | |
256 | } | |
257 | ||
38a24a61 WD |
258 | rcode = flash_sect_erase(addr_first, addr_last); |
259 | return rcode; | |
260 | } | |
261 | ||
262 | int flash_sect_erase (ulong addr_first, ulong addr_last) | |
263 | { | |
264 | flash_info_t *info; | |
265 | ulong bank; | |
bdccc4fe WD |
266 | int s_first[CFG_MAX_FLASH_BANKS], s_last[CFG_MAX_FLASH_BANKS]; |
267 | int erased = 0; | |
268 | int planned; | |
38a24a61 WD |
269 | int rcode = 0; |
270 | ||
bdccc4fe WD |
271 | rcode = flash_fill_sect_ranges (addr_first, addr_last, |
272 | s_first, s_last, &planned ); | |
273 | ||
274 | if (planned && (rcode == 0)) { | |
275 | for (bank=0,info=&flash_info[0]; | |
276 | (bank < CFG_MAX_FLASH_BANKS) && (rcode == 0); | |
277 | ++bank, ++info) { | |
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 " | |
281 | "in Bank # %ld ", | |
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, | |
286 | bank+1); | |
287 | rcode = flash_erase (info, s_first[bank], s_last[bank]); | |
38a24a61 WD |
288 | } |
289 | } | |
38a24a61 | 290 | printf ("Erased %d sectors\n", erased); |
bdccc4fe | 291 | } else if (rcode == 0) { |
38a24a61 WD |
292 | printf ("Error: start and/or end address" |
293 | " not on sector boundary\n"); | |
294 | rcode = 1; | |
295 | } | |
296 | return rcode; | |
297 | } | |
298 | ||
38a24a61 WD |
299 | int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) |
300 | { | |
301 | flash_info_t *info; | |
302 | ulong bank, addr_first, addr_last; | |
303 | int i, p, n, sect_first, sect_last; | |
304 | int rcode = 0; | |
305 | ||
306 | if (argc < 3) { | |
307 | printf ("Usage:\n%s\n", cmdtp->usage); | |
308 | return 1; | |
309 | } | |
310 | ||
bdccc4fe | 311 | if (strcmp(argv[1], "off") == 0) { |
38a24a61 | 312 | p = 0; |
bdccc4fe | 313 | } else if (strcmp(argv[1], "on") == 0) { |
38a24a61 | 314 | p = 1; |
bdccc4fe | 315 | } else { |
38a24a61 WD |
316 | printf ("Usage:\n%s\n", cmdtp->usage); |
317 | return 1; | |
318 | } | |
319 | ||
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) { | |
324 | continue; | |
325 | } | |
326 | printf ("%sProtect Flash Bank # %ld\n", | |
327 | p ? "" : "Un-", bank); | |
328 | ||
329 | for (i=0; i<info->sector_count; ++i) { | |
330 | #if defined(CFG_FLASH_PROTECTION) | |
331 | if (flash_real_protect(info, i, p)) | |
332 | rcode = 1; | |
333 | putc ('.'); | |
334 | #else | |
335 | info->protect[i] = p; | |
336 | #endif /* CFG_FLASH_PROTECTION */ | |
337 | } | |
338 | } | |
339 | ||
340 | #if defined(CFG_FLASH_PROTECTION) | |
341 | if (!rcode) puts (" done\n"); | |
342 | #endif /* CFG_FLASH_PROTECTION */ | |
343 | ||
344 | return rcode; | |
345 | } | |
346 | ||
347 | if ((n = abbrev_spec(argv[2], &info, §_first, §_last)) != 0) { | |
348 | if (n < 0) { | |
349 | printf("Bad sector specification\n"); | |
350 | return 1; | |
351 | } | |
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)) | |
358 | rcode = 1; | |
359 | putc ('.'); | |
360 | #else | |
361 | info->protect[i] = p; | |
362 | #endif /* CFG_FLASH_PROTECTION */ | |
363 | } | |
364 | ||
365 | #if defined(CFG_FLASH_PROTECTION) | |
366 | if (!rcode) puts (" done\n"); | |
367 | #endif /* CFG_FLASH_PROTECTION */ | |
368 | ||
369 | return rcode; | |
370 | } | |
371 | ||
372 | if (argc != 4) { | |
373 | printf ("Usage:\n%s\n", cmdtp->usage); | |
374 | return 1; | |
375 | } | |
376 | ||
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); | |
382 | return 1; | |
383 | } | |
384 | printf ("%sProtect Flash Bank # %ld\n", | |
385 | p ? "" : "Un-", bank); | |
386 | info = &flash_info[bank-1]; | |
387 | ||
388 | if (info->flash_id == FLASH_UNKNOWN) { | |
389 | printf ("missing or unknown FLASH type\n"); | |
390 | return 1; | |
391 | } | |
392 | for (i=0; i<info->sector_count; ++i) { | |
393 | #if defined(CFG_FLASH_PROTECTION) | |
394 | if (flash_real_protect(info, i, p)) | |
395 | rcode = 1; | |
396 | putc ('.'); | |
397 | #else | |
398 | info->protect[i] = p; | |
399 | #endif /* CFG_FLASH_PROTECTION */ | |
400 | } | |
401 | ||
402 | #if defined(CFG_FLASH_PROTECTION) | |
403 | if (!rcode) puts (" done\n"); | |
404 | #endif /* CFG_FLASH_PROTECTION */ | |
405 | ||
406 | return rcode; | |
407 | } | |
408 | ||
409 | addr_first = simple_strtoul(argv[2], NULL, 16); | |
410 | addr_last = simple_strtoul(argv[3], NULL, 16); | |
411 | ||
412 | if (addr_first >= addr_last) { | |
413 | printf ("Usage:\n%s\n", cmdtp->usage); | |
414 | return 1; | |
415 | } | |
416 | rcode = flash_sect_protect (p, addr_first, addr_last); | |
417 | return rcode; | |
418 | } | |
419 | ||
420 | ||
421 | int flash_sect_protect (int p, ulong addr_first, ulong addr_last) | |
422 | { | |
423 | flash_info_t *info; | |
424 | ulong bank; | |
bdccc4fe | 425 | int s_first[CFG_MAX_FLASH_BANKS], s_last[CFG_MAX_FLASH_BANKS]; |
38a24a61 | 426 | int protected, i; |
bdccc4fe WD |
427 | int planned; |
428 | int rcode; | |
38a24a61 | 429 | |
bdccc4fe | 430 | rcode = flash_fill_sect_ranges( addr_first, addr_last, s_first, s_last, &planned ); |
38a24a61 | 431 | |
bdccc4fe | 432 | protected = 0; |
38a24a61 | 433 | |
bdccc4fe WD |
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) { | |
38a24a61 | 437 | continue; |
38a24a61 | 438 | } |
bdccc4fe WD |
439 | |
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) { | |
38a24a61 | 445 | #if defined(CFG_FLASH_PROTECTION) |
bdccc4fe WD |
446 | if (flash_real_protect(info, i, p)) |
447 | rcode = 1; | |
448 | putc ('.'); | |
38a24a61 | 449 | #else |
bdccc4fe | 450 | info->protect[i] = p; |
38a24a61 | 451 | #endif /* CFG_FLASH_PROTECTION */ |
bdccc4fe | 452 | } |
38a24a61 | 453 | } |
38a24a61 | 454 | #if defined(CFG_FLASH_PROTECTION) |
bdccc4fe | 455 | if (!rcode) putc ('\n'); |
38a24a61 | 456 | #endif /* CFG_FLASH_PROTECTION */ |
bdccc4fe | 457 | } |
38a24a61 | 458 | |
38a24a61 WD |
459 | printf ("%sProtected %d sectors\n", |
460 | p ? "" : "Un-", protected); | |
bdccc4fe | 461 | } else if (rcode == 0) { |
38a24a61 WD |
462 | printf ("Error: start and/or end address" |
463 | " not on sector boundary\n"); | |
464 | rcode = 1; | |
465 | } | |
466 | return rcode; | |
467 | } | |
468 | ||
8bde7f77 WD |
469 | |
470 | /**************************************************/ | |
471 | ||
0d498393 WD |
472 | U_BOOT_CMD( |
473 | flinfo, 2, 1, do_flinfo, | |
8bde7f77 WD |
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" | |
477 | ); | |
478 | ||
0d498393 WD |
479 | U_BOOT_CMD( |
480 | erase, 3, 1, do_flerase, | |
8bde7f77 WD |
481 | "erase - erase FLASH memory\n", |
482 | "start end\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" | |
487 | ); | |
488 | ||
0d498393 WD |
489 | U_BOOT_CMD( |
490 | protect, 4, 1, do_protect, | |
8bde7f77 WD |
491 | "protect - enable or disable FLASH write protection\n", |
492 | "on start end\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" | |
504 | ); | |
505 | ||
38a24a61 | 506 | #endif /* CFG_CMD_FLASH */ |