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1 | /* | |
2 | * (C) Copyright 2000 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * SPDX-License-Identifier: GPL-2.0+ | |
6 | */ | |
7 | ||
8 | /* | |
9 | * FLASH support | |
10 | */ | |
11 | #include <common.h> | |
12 | #include <command.h> | |
13 | ||
14 | #if defined(CONFIG_CMD_MTDPARTS) | |
15 | #include <jffs2/jffs2.h> | |
16 | ||
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); | |
22 | #endif | |
23 | ||
24 | #ifdef CONFIG_MTD_NOR_FLASH | |
25 | #include <flash.h> | |
26 | #include <mtd/cfi_flash.h> | |
27 | extern flash_info_t flash_info[]; /* info for FLASH chips */ | |
28 | ||
29 | /* | |
30 | * The user interface starts numbering for Flash banks with 1 | |
31 | * for historical reasons. | |
32 | */ | |
33 | ||
34 | /* | |
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 | |
39 | * start at zero. | |
40 | * | |
41 | * returns: 1 - correct spec; *pinfo, *psf and *psl are | |
42 | * set appropriately | |
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. | |
47 | */ | |
48 | static int | |
49 | abbrev_spec (char *str, flash_info_t ** pinfo, int *psf, int *psl) | |
50 | { | |
51 | flash_info_t *fp; | |
52 | int bank, first, last; | |
53 | char *p, *ep; | |
54 | ||
55 | if ((p = strchr (str, ':')) == NULL) | |
56 | return 0; | |
57 | *p++ = '\0'; | |
58 | ||
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) | |
63 | return -1; | |
64 | ||
65 | str = p; | |
66 | if ((p = strchr (str, '-')) != NULL) | |
67 | *p++ = '\0'; | |
68 | ||
69 | first = simple_strtoul (str, &ep, 10); | |
70 | if (ep == str || *ep != '\0' || first >= fp->sector_count) | |
71 | return -1; | |
72 | ||
73 | if (p != NULL) { | |
74 | last = simple_strtoul (p, &ep, 10); | |
75 | if (ep == p || *ep != '\0' || | |
76 | last < first || last >= fp->sector_count) | |
77 | return -1; | |
78 | } else { | |
79 | last = first; | |
80 | } | |
81 | ||
82 | *pinfo = fp; | |
83 | *psf = first; | |
84 | *psl = last; | |
85 | ||
86 | return 1; | |
87 | } | |
88 | ||
89 | /* | |
90 | * Take *addr in Flash and adjust it to fall on the end of its sector | |
91 | */ | |
92 | int flash_sect_roundb (ulong *addr) | |
93 | { | |
94 | flash_info_t *info; | |
95 | ulong bank, sector_end_addr; | |
96 | char found; | |
97 | int i; | |
98 | ||
99 | /* find the end addr of the sector where the *addr is */ | |
100 | found = 0; | |
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] + | |
107 | info->size - 1; | |
108 | } else { | |
109 | sector_end_addr = info->start[i+1] - 1; | |
110 | } | |
111 | ||
112 | if (*addr <= sector_end_addr && | |
113 | *addr >= info->start[i]) { | |
114 | found = 1; | |
115 | /* adjust *addr if necessary */ | |
116 | if (*addr < sector_end_addr) | |
117 | *addr = sector_end_addr; | |
118 | } /* sector */ | |
119 | } /* bank */ | |
120 | } | |
121 | if (!found) { | |
122 | /* error, address not in flash */ | |
123 | printf("Error: end address (0x%08lx) not in flash!\n", *addr); | |
124 | return 1; | |
125 | } | |
126 | ||
127 | return 0; | |
128 | } | |
129 | ||
130 | /* | |
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). | |
139 | * Input: | |
140 | * arg1, arg2: address specification (i.e. both command arguments) | |
141 | * Output: | |
142 | * addr_first, addr_last: computed address range | |
143 | * Return: | |
144 | * 1: success | |
145 | * -1: failure (bad format, bad address). | |
146 | */ | |
147 | static int | |
148 | addr_spec(char *arg1, char *arg2, ulong *addr_first, ulong *addr_last) | |
149 | { | |
150 | char *ep; | |
151 | char len_used; /* indicates if the "start +length" form used */ | |
152 | ||
153 | *addr_first = simple_strtoul(arg1, &ep, 16); | |
154 | if (ep == arg1 || *ep != '\0') | |
155 | return -1; | |
156 | ||
157 | len_used = 0; | |
158 | if (arg2 && *arg2 == '+'){ | |
159 | len_used = 1; | |
160 | ++arg2; | |
161 | } | |
162 | ||
163 | *addr_last = simple_strtoul(arg2, &ep, 16); | |
164 | if (ep == arg2 || *ep != '\0') | |
165 | return -1; | |
166 | ||
167 | if (len_used){ | |
168 | /* | |
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. | |
172 | */ | |
173 | *addr_last = *addr_first + *addr_last - 1; | |
174 | ||
175 | /* | |
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. | |
179 | */ | |
180 | ||
181 | if (flash_sect_roundb(addr_last) > 0) | |
182 | return -1; | |
183 | } /* "start +length" from used */ | |
184 | ||
185 | return 1; | |
186 | } | |
187 | ||
188 | static int | |
189 | flash_fill_sect_ranges (ulong addr_first, ulong addr_last, | |
190 | int *s_first, int *s_last, | |
191 | int *s_count ) | |
192 | { | |
193 | flash_info_t *info; | |
194 | ulong bank; | |
195 | int rcode = 0; | |
196 | ||
197 | *s_count = 0; | |
198 | ||
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 */ | |
202 | } | |
203 | ||
204 | for (bank=0,info = &flash_info[0]; | |
205 | (bank < CONFIG_SYS_MAX_FLASH_BANKS) && (addr_first <= addr_last); | |
206 | ++bank, ++info) { | |
207 | ulong b_end; | |
208 | int sect; | |
209 | short s_end; | |
210 | ||
211 | if (info->flash_id == FLASH_UNKNOWN) { | |
212 | continue; | |
213 | } | |
214 | ||
215 | b_end = info->start[0] + info->size - 1; /* bank end addr */ | |
216 | s_end = info->sector_count - 1; /* last sector */ | |
217 | ||
218 | ||
219 | for (sect=0; sect < info->sector_count; ++sect) { | |
220 | ulong end; /* last address in current sect */ | |
221 | ||
222 | end = (sect == s_end) ? b_end : info->start[sect + 1] - 1; | |
223 | ||
224 | if (addr_first > end) | |
225 | continue; | |
226 | if (addr_last < info->start[sect]) | |
227 | continue; | |
228 | ||
229 | if (addr_first == info->start[sect]) { | |
230 | s_first[bank] = sect; | |
231 | } | |
232 | if (addr_last == end) { | |
233 | s_last[bank] = sect; | |
234 | } | |
235 | } | |
236 | if (s_first[bank] >= 0) { | |
237 | if (s_last[bank] < 0) { | |
238 | if (addr_last > b_end) { | |
239 | s_last[bank] = s_end; | |
240 | } else { | |
241 | puts ("Error: end address" | |
242 | " not on sector boundary\n"); | |
243 | rcode = 1; | |
244 | break; | |
245 | } | |
246 | } | |
247 | if (s_last[bank] < s_first[bank]) { | |
248 | puts ("Error: end sector" | |
249 | " precedes start sector\n"); | |
250 | rcode = 1; | |
251 | break; | |
252 | } | |
253 | sect = s_last[bank]; | |
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"); | |
258 | rcode = 1; | |
259 | break; | |
260 | } else if (s_last[bank] >= 0) { | |
261 | puts ("Error: cannot span across banks when they are" | |
262 | " mapped in reverse order\n"); | |
263 | rcode = 1; | |
264 | break; | |
265 | } | |
266 | } | |
267 | ||
268 | return rcode; | |
269 | } | |
270 | #endif /* CONFIG_MTD_NOR_FLASH */ | |
271 | ||
272 | static int do_flinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
273 | { | |
274 | #ifdef CONFIG_MTD_NOR_FLASH | |
275 | ulong bank; | |
276 | #endif | |
277 | ||
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); | |
282 | ||
283 | flash_print_info (&flash_info[bank]); | |
284 | } | |
285 | return 0; | |
286 | } | |
287 | ||
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); | |
292 | return 1; | |
293 | } | |
294 | printf ("\nBank # %ld: ", bank); | |
295 | flash_print_info (&flash_info[bank-1]); | |
296 | #endif /* CONFIG_MTD_NOR_FLASH */ | |
297 | return 0; | |
298 | } | |
299 | ||
300 | static int do_flerase(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
301 | { | |
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; | |
310 | #endif | |
311 | int rcode = 0; | |
312 | ||
313 | if (argc < 2) | |
314 | return CMD_RET_USAGE; | |
315 | ||
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); | |
321 | } | |
322 | return rcode; | |
323 | } | |
324 | ||
325 | if ((n = abbrev_spec(argv[1], &info, §_first, §_last)) != 0) { | |
326 | if (n < 0) { | |
327 | puts ("Bad sector specification\n"); | |
328 | return 1; | |
329 | } | |
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); | |
333 | return rcode; | |
334 | } | |
335 | ||
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)) { | |
339 | mtdparts_init(); | |
340 | if (find_dev_and_part(argv[1], &dev, &pnum, &part) == 0) { | |
341 | if (dev->id->type == MTD_DEV_TYPE_NOR) { | |
342 | bank = dev->id->num; | |
343 | info = &flash_info[bank]; | |
344 | addr_first = part->offset + info->start[0]; | |
345 | addr_last = addr_first + part->size - 1; | |
346 | ||
347 | printf ("Erase Flash Partition %s, " | |
348 | "bank %ld, 0x%08lx - 0x%08lx ", | |
349 | argv[1], bank, addr_first, | |
350 | addr_last); | |
351 | ||
352 | rcode = flash_sect_erase(addr_first, addr_last); | |
353 | return rcode; | |
354 | } | |
355 | ||
356 | printf("cannot erase, not a NOR device\n"); | |
357 | return 1; | |
358 | } | |
359 | } | |
360 | #endif | |
361 | ||
362 | if (argc != 3) | |
363 | return CMD_RET_USAGE; | |
364 | ||
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); | |
370 | return 1; | |
371 | } | |
372 | printf ("Erase Flash Bank # %ld ", bank); | |
373 | info = &flash_info[bank-1]; | |
374 | rcode = flash_erase (info, 0, info->sector_count-1); | |
375 | return rcode; | |
376 | } | |
377 | ||
378 | if (addr_spec(argv[1], argv[2], &addr_first, &addr_last) < 0){ | |
379 | printf ("Bad address format\n"); | |
380 | return 1; | |
381 | } | |
382 | ||
383 | if (addr_first >= addr_last) | |
384 | return CMD_RET_USAGE; | |
385 | ||
386 | rcode = flash_sect_erase(addr_first, addr_last); | |
387 | return rcode; | |
388 | #else | |
389 | return 0; | |
390 | #endif /* CONFIG_MTD_NOR_FLASH */ | |
391 | } | |
392 | ||
393 | #ifdef CONFIG_MTD_NOR_FLASH | |
394 | int flash_sect_erase (ulong addr_first, ulong addr_last) | |
395 | { | |
396 | flash_info_t *info; | |
397 | ulong bank; | |
398 | int s_first[CONFIG_SYS_MAX_FLASH_BANKS], s_last[CONFIG_SYS_MAX_FLASH_BANKS]; | |
399 | int erased = 0; | |
400 | int planned; | |
401 | int rcode = 0; | |
402 | ||
403 | rcode = flash_fill_sect_ranges (addr_first, addr_last, | |
404 | s_first, s_last, &planned ); | |
405 | ||
406 | if (planned && (rcode == 0)) { | |
407 | for (bank=0,info = &flash_info[0]; | |
408 | (bank < CONFIG_SYS_MAX_FLASH_BANKS) && (rcode == 0); | |
409 | ++bank, ++info) { | |
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 " | |
413 | "in Bank # %ld ", | |
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, | |
418 | bank+1); | |
419 | rcode = flash_erase (info, s_first[bank], s_last[bank]); | |
420 | } | |
421 | } | |
422 | if (rcode == 0) | |
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"); | |
427 | rcode = 1; | |
428 | } | |
429 | return rcode; | |
430 | } | |
431 | #endif /* CONFIG_MTD_NOR_FLASH */ | |
432 | ||
433 | static int do_protect(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
434 | { | |
435 | int rcode = 0; | |
436 | #ifdef CONFIG_MTD_NOR_FLASH | |
437 | flash_info_t *info = NULL; | |
438 | ulong bank; | |
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; | |
444 | #endif | |
445 | #endif /* CONFIG_MTD_NOR_FLASH */ | |
446 | #if defined(CONFIG_MTD_NOR_FLASH) | |
447 | int p; | |
448 | ulong addr_first, addr_last; | |
449 | #endif | |
450 | ||
451 | if (argc < 3) | |
452 | return CMD_RET_USAGE; | |
453 | ||
454 | #if defined(CONFIG_MTD_NOR_FLASH) | |
455 | if (strcmp(argv[1], "off") == 0) | |
456 | p = 0; | |
457 | else if (strcmp(argv[1], "on") == 0) | |
458 | p = 1; | |
459 | else | |
460 | return CMD_RET_USAGE; | |
461 | #endif | |
462 | ||
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) { | |
468 | continue; | |
469 | } | |
470 | printf ("%sProtect Flash Bank # %ld\n", | |
471 | p ? "" : "Un-", bank); | |
472 | ||
473 | for (i=0; i<info->sector_count; ++i) { | |
474 | #if defined(CONFIG_SYS_FLASH_PROTECTION) | |
475 | if (flash_real_protect(info, i, p)) | |
476 | rcode = 1; | |
477 | putc ('.'); | |
478 | #else | |
479 | info->protect[i] = p; | |
480 | #endif /* CONFIG_SYS_FLASH_PROTECTION */ | |
481 | } | |
482 | #if defined(CONFIG_SYS_FLASH_PROTECTION) | |
483 | if (!rcode) puts (" done\n"); | |
484 | #endif /* CONFIG_SYS_FLASH_PROTECTION */ | |
485 | } | |
486 | return rcode; | |
487 | } | |
488 | ||
489 | if ((n = abbrev_spec(argv[2], &info, §_first, §_last)) != 0) { | |
490 | if (n < 0) { | |
491 | puts ("Bad sector specification\n"); | |
492 | return 1; | |
493 | } | |
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)) | |
500 | rcode = 1; | |
501 | putc ('.'); | |
502 | #else | |
503 | info->protect[i] = p; | |
504 | #endif /* CONFIG_SYS_FLASH_PROTECTION */ | |
505 | } | |
506 | ||
507 | #if defined(CONFIG_SYS_FLASH_PROTECTION) | |
508 | if (!rcode) puts (" done\n"); | |
509 | #endif /* CONFIG_SYS_FLASH_PROTECTION */ | |
510 | ||
511 | return rcode; | |
512 | } | |
513 | ||
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)) { | |
517 | mtdparts_init(); | |
518 | if (find_dev_and_part(argv[2], &dev, &pnum, &part) == 0) { | |
519 | if (dev->id->type == MTD_DEV_TYPE_NOR) { | |
520 | bank = dev->id->num; | |
521 | info = &flash_info[bank]; | |
522 | addr_first = part->offset + info->start[0]; | |
523 | addr_last = addr_first + part->size - 1; | |
524 | ||
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); | |
529 | ||
530 | rcode = flash_sect_protect (p, addr_first, addr_last); | |
531 | return rcode; | |
532 | } | |
533 | ||
534 | printf("cannot %sprotect, not a NOR device\n", | |
535 | p ? "" : "un"); | |
536 | return 1; | |
537 | } | |
538 | } | |
539 | #endif | |
540 | ||
541 | if (argc != 4) | |
542 | return CMD_RET_USAGE; | |
543 | ||
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); | |
549 | return 1; | |
550 | } | |
551 | printf ("%sProtect Flash Bank # %ld\n", | |
552 | p ? "" : "Un-", bank); | |
553 | info = &flash_info[bank-1]; | |
554 | ||
555 | if (info->flash_id == FLASH_UNKNOWN) { | |
556 | puts ("missing or unknown FLASH type\n"); | |
557 | return 1; | |
558 | } | |
559 | for (i=0; i<info->sector_count; ++i) { | |
560 | #if defined(CONFIG_SYS_FLASH_PROTECTION) | |
561 | if (flash_real_protect(info, i, p)) | |
562 | rcode = 1; | |
563 | putc ('.'); | |
564 | #else | |
565 | info->protect[i] = p; | |
566 | #endif /* CONFIG_SYS_FLASH_PROTECTION */ | |
567 | } | |
568 | ||
569 | #if defined(CONFIG_SYS_FLASH_PROTECTION) | |
570 | if (!rcode) puts (" done\n"); | |
571 | #endif /* CONFIG_SYS_FLASH_PROTECTION */ | |
572 | ||
573 | return rcode; | |
574 | } | |
575 | ||
576 | if (addr_spec(argv[2], argv[3], &addr_first, &addr_last) < 0){ | |
577 | printf("Bad address format\n"); | |
578 | return 1; | |
579 | } | |
580 | ||
581 | if (addr_first >= addr_last) | |
582 | return CMD_RET_USAGE; | |
583 | ||
584 | rcode = flash_sect_protect (p, addr_first, addr_last); | |
585 | #endif /* CONFIG_MTD_NOR_FLASH */ | |
586 | return rcode; | |
587 | } | |
588 | ||
589 | #ifdef CONFIG_MTD_NOR_FLASH | |
590 | int flash_sect_protect (int p, ulong addr_first, ulong addr_last) | |
591 | { | |
592 | flash_info_t *info; | |
593 | ulong bank; | |
594 | int s_first[CONFIG_SYS_MAX_FLASH_BANKS], s_last[CONFIG_SYS_MAX_FLASH_BANKS]; | |
595 | int protected, i; | |
596 | int planned; | |
597 | int rcode; | |
598 | ||
599 | rcode = flash_fill_sect_ranges( addr_first, addr_last, s_first, s_last, &planned ); | |
600 | ||
601 | protected = 0; | |
602 | ||
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) { | |
606 | continue; | |
607 | } | |
608 | ||
609 | if (s_first[bank]>=0 && s_first[bank]<=s_last[bank]) { | |
610 | debug ("%sProtecting sectors %d..%d in bank %ld\n", | |
611 | p ? "" : "Un-", | |
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)) | |
617 | rcode = 1; | |
618 | putc ('.'); | |
619 | #else | |
620 | info->protect[i] = p; | |
621 | #endif /* CONFIG_SYS_FLASH_PROTECTION */ | |
622 | } | |
623 | } | |
624 | } | |
625 | #if defined(CONFIG_SYS_FLASH_PROTECTION) | |
626 | puts (" done\n"); | |
627 | #endif /* CONFIG_SYS_FLASH_PROTECTION */ | |
628 | ||
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"); | |
634 | rcode = 1; | |
635 | } | |
636 | return rcode; | |
637 | } | |
638 | #endif /* CONFIG_MTD_NOR_FLASH */ | |
639 | ||
640 | ||
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" | |
646 | #else | |
647 | # define TMP_ERASE /* empty */ | |
648 | # define TMP_PROT_ON /* empty */ | |
649 | # define TMP_PROT_OFF /* empty */ | |
650 | #endif | |
651 | ||
652 | U_BOOT_CMD( | |
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" | |
657 | ); | |
658 | ||
659 | U_BOOT_CMD( | |
660 | erase, 3, 0, do_flerase, | |
661 | "erase FLASH memory", | |
662 | "start end\n" | |
663 | " - erase FLASH from addr 'start' to addr 'end'\n" | |
664 | "erase start +len\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" | |
669 | TMP_ERASE | |
670 | "erase all\n - erase all FLASH banks" | |
671 | ); | |
672 | ||
673 | U_BOOT_CMD( | |
674 | protect, 4, 0, do_protect, | |
675 | "enable or disable FLASH write protection", | |
676 | "on start end\n" | |
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" | |
684 | TMP_PROT_ON | |
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" | |
694 | TMP_PROT_OFF | |
695 | "protect off all\n - make all FLASH banks writable" | |
696 | ); | |
697 | ||
698 | #undef TMP_ERASE | |
699 | #undef TMP_PROT_ON | |
700 | #undef TMP_PROT_OFF |