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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 #ifdef CONFIG_HAS_DATAFLASH
15 #include <dataflash.h>
16 #endif
17
18 #if defined(CONFIG_CMD_MTDPARTS)
19 #include <jffs2/jffs2.h>
20
21 /* partition handling routines */
22 int mtdparts_init(void);
23 int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
24 int find_dev_and_part(const char *id, struct mtd_device **dev,
25 u8 *part_num, struct part_info **part);
26 #endif
27
28 #ifndef CONFIG_SYS_NO_FLASH
29 #include <flash.h>
30 #include <mtd/cfi_flash.h>
31 extern flash_info_t flash_info[]; /* info for FLASH chips */
32
33 /*
34 * The user interface starts numbering for Flash banks with 1
35 * for historical reasons.
36 */
37
38 /*
39 * this routine looks for an abbreviated flash range specification.
40 * the syntax is B:SF[-SL], where B is the bank number, SF is the first
41 * sector to erase, and SL is the last sector to erase (defaults to SF).
42 * bank numbers start at 1 to be consistent with other specs, sector numbers
43 * start at zero.
44 *
45 * returns: 1 - correct spec; *pinfo, *psf and *psl are
46 * set appropriately
47 * 0 - doesn't look like an abbreviated spec
48 * -1 - looks like an abbreviated spec, but got
49 * a parsing error, a number out of range,
50 * or an invalid flash bank.
51 */
52 static int
53 abbrev_spec (char *str, flash_info_t ** pinfo, int *psf, int *psl)
54 {
55 flash_info_t *fp;
56 int bank, first, last;
57 char *p, *ep;
58
59 if ((p = strchr (str, ':')) == NULL)
60 return 0;
61 *p++ = '\0';
62
63 bank = simple_strtoul (str, &ep, 10);
64 if (ep == str || *ep != '\0' ||
65 bank < 1 || bank > CONFIG_SYS_MAX_FLASH_BANKS ||
66 (fp = &flash_info[bank - 1])->flash_id == FLASH_UNKNOWN)
67 return -1;
68
69 str = p;
70 if ((p = strchr (str, '-')) != NULL)
71 *p++ = '\0';
72
73 first = simple_strtoul (str, &ep, 10);
74 if (ep == str || *ep != '\0' || first >= fp->sector_count)
75 return -1;
76
77 if (p != NULL) {
78 last = simple_strtoul (p, &ep, 10);
79 if (ep == p || *ep != '\0' ||
80 last < first || last >= fp->sector_count)
81 return -1;
82 } else {
83 last = first;
84 }
85
86 *pinfo = fp;
87 *psf = first;
88 *psl = last;
89
90 return 1;
91 }
92
93 /*
94 * Take *addr in Flash and adjust it to fall on the end of its sector
95 */
96 int flash_sect_roundb (ulong *addr)
97 {
98 flash_info_t *info;
99 ulong bank, sector_end_addr;
100 char found;
101 int i;
102
103 /* find the end addr of the sector where the *addr is */
104 found = 0;
105 for (bank = 0; bank < CONFIG_SYS_MAX_FLASH_BANKS && !found; ++bank) {
106 info = &flash_info[bank];
107 for (i = 0; i < info->sector_count && !found; ++i) {
108 /* get the end address of the sector */
109 if (i == info->sector_count - 1) {
110 sector_end_addr = info->start[0] +
111 info->size - 1;
112 } else {
113 sector_end_addr = info->start[i+1] - 1;
114 }
115
116 if (*addr <= sector_end_addr &&
117 *addr >= info->start[i]) {
118 found = 1;
119 /* adjust *addr if necessary */
120 if (*addr < sector_end_addr)
121 *addr = sector_end_addr;
122 } /* sector */
123 } /* bank */
124 }
125 if (!found) {
126 /* error, address not in flash */
127 printf("Error: end address (0x%08lx) not in flash!\n", *addr);
128 return 1;
129 }
130
131 return 0;
132 }
133
134 /*
135 * This function computes the start and end addresses for both
136 * erase and protect commands. The range of the addresses on which
137 * either of the commands is to operate can be given in two forms:
138 * 1. <cmd> start end - operate on <'start', 'end')
139 * 2. <cmd> start +length - operate on <'start', start + length)
140 * If the second form is used and the end address doesn't fall on the
141 * sector boundary, than it will be adjusted to the next sector boundary.
142 * If it isn't in the flash, the function will fail (return -1).
143 * Input:
144 * arg1, arg2: address specification (i.e. both command arguments)
145 * Output:
146 * addr_first, addr_last: computed address range
147 * Return:
148 * 1: success
149 * -1: failure (bad format, bad address).
150 */
151 static int
152 addr_spec(char *arg1, char *arg2, ulong *addr_first, ulong *addr_last)
153 {
154 char *ep;
155 char len_used; /* indicates if the "start +length" form used */
156
157 *addr_first = simple_strtoul(arg1, &ep, 16);
158 if (ep == arg1 || *ep != '\0')
159 return -1;
160
161 len_used = 0;
162 if (arg2 && *arg2 == '+'){
163 len_used = 1;
164 ++arg2;
165 }
166
167 *addr_last = simple_strtoul(arg2, &ep, 16);
168 if (ep == arg2 || *ep != '\0')
169 return -1;
170
171 if (len_used){
172 /*
173 * *addr_last has the length, compute correct *addr_last
174 * XXX watch out for the integer overflow! Right now it is
175 * checked for in both the callers.
176 */
177 *addr_last = *addr_first + *addr_last - 1;
178
179 /*
180 * It may happen that *addr_last doesn't fall on the sector
181 * boundary. We want to round such an address to the next
182 * sector boundary, so that the commands don't fail later on.
183 */
184
185 if (flash_sect_roundb(addr_last) > 0)
186 return -1;
187 } /* "start +length" from used */
188
189 return 1;
190 }
191
192 static int
193 flash_fill_sect_ranges (ulong addr_first, ulong addr_last,
194 int *s_first, int *s_last,
195 int *s_count )
196 {
197 flash_info_t *info;
198 ulong bank;
199 int rcode = 0;
200
201 *s_count = 0;
202
203 for (bank=0; bank < CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
204 s_first[bank] = -1; /* first sector to erase */
205 s_last [bank] = -1; /* last sector to erase */
206 }
207
208 for (bank=0,info = &flash_info[0];
209 (bank < CONFIG_SYS_MAX_FLASH_BANKS) && (addr_first <= addr_last);
210 ++bank, ++info) {
211 ulong b_end;
212 int sect;
213 short s_end;
214
215 if (info->flash_id == FLASH_UNKNOWN) {
216 continue;
217 }
218
219 b_end = info->start[0] + info->size - 1; /* bank end addr */
220 s_end = info->sector_count - 1; /* last sector */
221
222
223 for (sect=0; sect < info->sector_count; ++sect) {
224 ulong end; /* last address in current sect */
225
226 end = (sect == s_end) ? b_end : info->start[sect + 1] - 1;
227
228 if (addr_first > end)
229 continue;
230 if (addr_last < info->start[sect])
231 continue;
232
233 if (addr_first == info->start[sect]) {
234 s_first[bank] = sect;
235 }
236 if (addr_last == end) {
237 s_last[bank] = sect;
238 }
239 }
240 if (s_first[bank] >= 0) {
241 if (s_last[bank] < 0) {
242 if (addr_last > b_end) {
243 s_last[bank] = s_end;
244 } else {
245 puts ("Error: end address"
246 " not on sector boundary\n");
247 rcode = 1;
248 break;
249 }
250 }
251 if (s_last[bank] < s_first[bank]) {
252 puts ("Error: end sector"
253 " precedes start sector\n");
254 rcode = 1;
255 break;
256 }
257 sect = s_last[bank];
258 addr_first = (sect == s_end) ? b_end + 1: info->start[sect + 1];
259 (*s_count) += s_last[bank] - s_first[bank] + 1;
260 } else if (addr_first >= info->start[0] && addr_first < b_end) {
261 puts ("Error: start address not on sector boundary\n");
262 rcode = 1;
263 break;
264 } else if (s_last[bank] >= 0) {
265 puts ("Error: cannot span across banks when they are"
266 " mapped in reverse order\n");
267 rcode = 1;
268 break;
269 }
270 }
271
272 return rcode;
273 }
274 #endif /* CONFIG_SYS_NO_FLASH */
275
276 static int do_flinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
277 {
278 #ifndef CONFIG_SYS_NO_FLASH
279 ulong bank;
280 #endif
281
282 #ifdef CONFIG_HAS_DATAFLASH
283 dataflash_print_info();
284 #endif
285
286 #ifndef CONFIG_SYS_NO_FLASH
287 if (argc == 1) { /* print info for all FLASH banks */
288 for (bank=0; bank <CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
289 printf ("\nBank # %ld: ", bank+1);
290
291 flash_print_info (&flash_info[bank]);
292 }
293 return 0;
294 }
295
296 bank = simple_strtoul(argv[1], NULL, 16);
297 if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) {
298 printf ("Only FLASH Banks # 1 ... # %d supported\n",
299 CONFIG_SYS_MAX_FLASH_BANKS);
300 return 1;
301 }
302 printf ("\nBank # %ld: ", bank);
303 flash_print_info (&flash_info[bank-1]);
304 #endif /* CONFIG_SYS_NO_FLASH */
305 return 0;
306 }
307
308 static int do_flerase(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
309 {
310 #ifndef CONFIG_SYS_NO_FLASH
311 flash_info_t *info = NULL;
312 ulong bank, addr_first, addr_last;
313 int n, sect_first = 0, sect_last = 0;
314 #if defined(CONFIG_CMD_MTDPARTS)
315 struct mtd_device *dev;
316 struct part_info *part;
317 u8 dev_type, dev_num, pnum;
318 #endif
319 int rcode = 0;
320
321 if (argc < 2)
322 return CMD_RET_USAGE;
323
324 if (strcmp(argv[1], "all") == 0) {
325 for (bank=1; bank<=CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
326 printf ("Erase Flash Bank # %ld ", bank);
327 info = &flash_info[bank-1];
328 rcode = flash_erase (info, 0, info->sector_count-1);
329 }
330 return rcode;
331 }
332
333 if ((n = abbrev_spec(argv[1], &info, &sect_first, &sect_last)) != 0) {
334 if (n < 0) {
335 puts ("Bad sector specification\n");
336 return 1;
337 }
338 printf ("Erase Flash Sectors %d-%d in Bank # %zu ",
339 sect_first, sect_last, (info-flash_info)+1);
340 rcode = flash_erase(info, sect_first, sect_last);
341 return rcode;
342 }
343
344 #if defined(CONFIG_CMD_MTDPARTS)
345 /* erase <part-id> - erase partition */
346 if ((argc == 2) && (mtd_id_parse(argv[1], NULL, &dev_type, &dev_num) == 0)) {
347 mtdparts_init();
348 if (find_dev_and_part(argv[1], &dev, &pnum, &part) == 0) {
349 if (dev->id->type == MTD_DEV_TYPE_NOR) {
350 bank = dev->id->num;
351 info = &flash_info[bank];
352 addr_first = part->offset + info->start[0];
353 addr_last = addr_first + part->size - 1;
354
355 printf ("Erase Flash Partition %s, "
356 "bank %ld, 0x%08lx - 0x%08lx ",
357 argv[1], bank, addr_first,
358 addr_last);
359
360 rcode = flash_sect_erase(addr_first, addr_last);
361 return rcode;
362 }
363
364 printf("cannot erase, not a NOR device\n");
365 return 1;
366 }
367 }
368 #endif
369
370 if (argc != 3)
371 return CMD_RET_USAGE;
372
373 if (strcmp(argv[1], "bank") == 0) {
374 bank = simple_strtoul(argv[2], NULL, 16);
375 if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) {
376 printf ("Only FLASH Banks # 1 ... # %d supported\n",
377 CONFIG_SYS_MAX_FLASH_BANKS);
378 return 1;
379 }
380 printf ("Erase Flash Bank # %ld ", bank);
381 info = &flash_info[bank-1];
382 rcode = flash_erase (info, 0, info->sector_count-1);
383 return rcode;
384 }
385
386 if (addr_spec(argv[1], argv[2], &addr_first, &addr_last) < 0){
387 printf ("Bad address format\n");
388 return 1;
389 }
390
391 if (addr_first >= addr_last)
392 return CMD_RET_USAGE;
393
394 rcode = flash_sect_erase(addr_first, addr_last);
395 return rcode;
396 #else
397 return 0;
398 #endif /* CONFIG_SYS_NO_FLASH */
399 }
400
401 #ifndef CONFIG_SYS_NO_FLASH
402 int flash_sect_erase (ulong addr_first, ulong addr_last)
403 {
404 flash_info_t *info;
405 ulong bank;
406 int s_first[CONFIG_SYS_MAX_FLASH_BANKS], s_last[CONFIG_SYS_MAX_FLASH_BANKS];
407 int erased = 0;
408 int planned;
409 int rcode = 0;
410
411 rcode = flash_fill_sect_ranges (addr_first, addr_last,
412 s_first, s_last, &planned );
413
414 if (planned && (rcode == 0)) {
415 for (bank=0,info = &flash_info[0];
416 (bank < CONFIG_SYS_MAX_FLASH_BANKS) && (rcode == 0);
417 ++bank, ++info) {
418 if (s_first[bank]>=0) {
419 erased += s_last[bank] - s_first[bank] + 1;
420 debug ("Erase Flash from 0x%08lx to 0x%08lx "
421 "in Bank # %ld ",
422 info->start[s_first[bank]],
423 (s_last[bank] == info->sector_count) ?
424 info->start[0] + info->size - 1:
425 info->start[s_last[bank]+1] - 1,
426 bank+1);
427 rcode = flash_erase (info, s_first[bank], s_last[bank]);
428 }
429 }
430 if (rcode == 0)
431 printf("Erased %d sectors\n", erased);
432 } else if (rcode == 0) {
433 puts ("Error: start and/or end address"
434 " not on sector boundary\n");
435 rcode = 1;
436 }
437 return rcode;
438 }
439 #endif /* CONFIG_SYS_NO_FLASH */
440
441 static int do_protect(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
442 {
443 int rcode = 0;
444 #ifndef CONFIG_SYS_NO_FLASH
445 flash_info_t *info = NULL;
446 ulong bank;
447 int i, n, sect_first = 0, sect_last = 0;
448 #if defined(CONFIG_CMD_MTDPARTS)
449 struct mtd_device *dev;
450 struct part_info *part;
451 u8 dev_type, dev_num, pnum;
452 #endif
453 #endif /* CONFIG_SYS_NO_FLASH */
454 #ifdef CONFIG_HAS_DATAFLASH
455 int status;
456 #endif
457 #if !defined(CONFIG_SYS_NO_FLASH) || defined(CONFIG_HAS_DATAFLASH)
458 int p;
459 ulong addr_first, addr_last;
460 #endif
461
462 if (argc < 3)
463 return CMD_RET_USAGE;
464
465 #if !defined(CONFIG_SYS_NO_FLASH) || defined(CONFIG_HAS_DATAFLASH)
466 if (strcmp(argv[1], "off") == 0)
467 p = 0;
468 else if (strcmp(argv[1], "on") == 0)
469 p = 1;
470 else
471 return CMD_RET_USAGE;
472 #endif
473
474 #ifdef CONFIG_HAS_DATAFLASH
475 if ((strcmp(argv[2], "all") != 0) && (strcmp(argv[2], "bank") != 0)) {
476 addr_first = simple_strtoul(argv[2], NULL, 16);
477 addr_last = simple_strtoul(argv[3], NULL, 16);
478
479 if (addr_dataflash(addr_first) && addr_dataflash(addr_last)) {
480 status = dataflash_real_protect(p,addr_first,addr_last);
481 if (status < 0){
482 puts ("Bad DataFlash sector specification\n");
483 return 1;
484 }
485 printf("%sProtect %d DataFlash Sectors\n",
486 p ? "" : "Un-", status);
487 return 0;
488 }
489 }
490 #endif
491
492 #ifndef CONFIG_SYS_NO_FLASH
493 if (strcmp(argv[2], "all") == 0) {
494 for (bank=1; bank<=CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
495 info = &flash_info[bank-1];
496 if (info->flash_id == FLASH_UNKNOWN) {
497 continue;
498 }
499 printf ("%sProtect Flash Bank # %ld\n",
500 p ? "" : "Un-", bank);
501
502 for (i=0; i<info->sector_count; ++i) {
503 #if defined(CONFIG_SYS_FLASH_PROTECTION)
504 if (flash_real_protect(info, i, p))
505 rcode = 1;
506 putc ('.');
507 #else
508 info->protect[i] = p;
509 #endif /* CONFIG_SYS_FLASH_PROTECTION */
510 }
511 #if defined(CONFIG_SYS_FLASH_PROTECTION)
512 if (!rcode) puts (" done\n");
513 #endif /* CONFIG_SYS_FLASH_PROTECTION */
514 }
515 return rcode;
516 }
517
518 if ((n = abbrev_spec(argv[2], &info, &sect_first, &sect_last)) != 0) {
519 if (n < 0) {
520 puts ("Bad sector specification\n");
521 return 1;
522 }
523 printf("%sProtect Flash Sectors %d-%d in Bank # %zu\n",
524 p ? "" : "Un-", sect_first, sect_last,
525 (info-flash_info)+1);
526 for (i = sect_first; i <= sect_last; i++) {
527 #if defined(CONFIG_SYS_FLASH_PROTECTION)
528 if (flash_real_protect(info, i, p))
529 rcode = 1;
530 putc ('.');
531 #else
532 info->protect[i] = p;
533 #endif /* CONFIG_SYS_FLASH_PROTECTION */
534 }
535
536 #if defined(CONFIG_SYS_FLASH_PROTECTION)
537 if (!rcode) puts (" done\n");
538 #endif /* CONFIG_SYS_FLASH_PROTECTION */
539
540 return rcode;
541 }
542
543 #if defined(CONFIG_CMD_MTDPARTS)
544 /* protect on/off <part-id> */
545 if ((argc == 3) && (mtd_id_parse(argv[2], NULL, &dev_type, &dev_num) == 0)) {
546 mtdparts_init();
547 if (find_dev_and_part(argv[2], &dev, &pnum, &part) == 0) {
548 if (dev->id->type == MTD_DEV_TYPE_NOR) {
549 bank = dev->id->num;
550 info = &flash_info[bank];
551 addr_first = part->offset + info->start[0];
552 addr_last = addr_first + part->size - 1;
553
554 printf ("%sProtect Flash Partition %s, "
555 "bank %ld, 0x%08lx - 0x%08lx\n",
556 p ? "" : "Un", argv[1],
557 bank, addr_first, addr_last);
558
559 rcode = flash_sect_protect (p, addr_first, addr_last);
560 return rcode;
561 }
562
563 printf("cannot %sprotect, not a NOR device\n",
564 p ? "" : "un");
565 return 1;
566 }
567 }
568 #endif
569
570 if (argc != 4)
571 return CMD_RET_USAGE;
572
573 if (strcmp(argv[2], "bank") == 0) {
574 bank = simple_strtoul(argv[3], NULL, 16);
575 if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) {
576 printf ("Only FLASH Banks # 1 ... # %d supported\n",
577 CONFIG_SYS_MAX_FLASH_BANKS);
578 return 1;
579 }
580 printf ("%sProtect Flash Bank # %ld\n",
581 p ? "" : "Un-", bank);
582 info = &flash_info[bank-1];
583
584 if (info->flash_id == FLASH_UNKNOWN) {
585 puts ("missing or unknown FLASH type\n");
586 return 1;
587 }
588 for (i=0; i<info->sector_count; ++i) {
589 #if defined(CONFIG_SYS_FLASH_PROTECTION)
590 if (flash_real_protect(info, i, p))
591 rcode = 1;
592 putc ('.');
593 #else
594 info->protect[i] = p;
595 #endif /* CONFIG_SYS_FLASH_PROTECTION */
596 }
597
598 #if defined(CONFIG_SYS_FLASH_PROTECTION)
599 if (!rcode) puts (" done\n");
600 #endif /* CONFIG_SYS_FLASH_PROTECTION */
601
602 return rcode;
603 }
604
605 if (addr_spec(argv[2], argv[3], &addr_first, &addr_last) < 0){
606 printf("Bad address format\n");
607 return 1;
608 }
609
610 if (addr_first >= addr_last)
611 return CMD_RET_USAGE;
612
613 rcode = flash_sect_protect (p, addr_first, addr_last);
614 #endif /* CONFIG_SYS_NO_FLASH */
615 return rcode;
616 }
617
618 #ifndef CONFIG_SYS_NO_FLASH
619 int flash_sect_protect (int p, ulong addr_first, ulong addr_last)
620 {
621 flash_info_t *info;
622 ulong bank;
623 int s_first[CONFIG_SYS_MAX_FLASH_BANKS], s_last[CONFIG_SYS_MAX_FLASH_BANKS];
624 int protected, i;
625 int planned;
626 int rcode;
627
628 rcode = flash_fill_sect_ranges( addr_first, addr_last, s_first, s_last, &planned );
629
630 protected = 0;
631
632 if (planned && (rcode == 0)) {
633 for (bank=0,info = &flash_info[0]; bank < CONFIG_SYS_MAX_FLASH_BANKS; ++bank, ++info) {
634 if (info->flash_id == FLASH_UNKNOWN) {
635 continue;
636 }
637
638 if (s_first[bank]>=0 && s_first[bank]<=s_last[bank]) {
639 debug ("%sProtecting sectors %d..%d in bank %ld\n",
640 p ? "" : "Un-",
641 s_first[bank], s_last[bank], bank+1);
642 protected += s_last[bank] - s_first[bank] + 1;
643 for (i=s_first[bank]; i<=s_last[bank]; ++i) {
644 #if defined(CONFIG_SYS_FLASH_PROTECTION)
645 if (flash_real_protect(info, i, p))
646 rcode = 1;
647 putc ('.');
648 #else
649 info->protect[i] = p;
650 #endif /* CONFIG_SYS_FLASH_PROTECTION */
651 }
652 }
653 }
654 #if defined(CONFIG_SYS_FLASH_PROTECTION)
655 puts (" done\n");
656 #endif /* CONFIG_SYS_FLASH_PROTECTION */
657
658 printf ("%sProtected %d sectors\n",
659 p ? "" : "Un-", protected);
660 } else if (rcode == 0) {
661 puts ("Error: start and/or end address"
662 " not on sector boundary\n");
663 rcode = 1;
664 }
665 return rcode;
666 }
667 #endif /* CONFIG_SYS_NO_FLASH */
668
669
670 /**************************************************/
671 #if defined(CONFIG_CMD_MTDPARTS)
672 # define TMP_ERASE "erase <part-id>\n - erase partition\n"
673 # define TMP_PROT_ON "protect on <part-id>\n - protect partition\n"
674 # define TMP_PROT_OFF "protect off <part-id>\n - make partition writable\n"
675 #else
676 # define TMP_ERASE /* empty */
677 # define TMP_PROT_ON /* empty */
678 # define TMP_PROT_OFF /* empty */
679 #endif
680
681 U_BOOT_CMD(
682 flinfo, 2, 1, do_flinfo,
683 "print FLASH memory information",
684 "\n - print information for all FLASH memory banks\n"
685 "flinfo N\n - print information for FLASH memory bank # N"
686 );
687
688 U_BOOT_CMD(
689 erase, 3, 0, do_flerase,
690 "erase FLASH memory",
691 "start end\n"
692 " - erase FLASH from addr 'start' to addr 'end'\n"
693 "erase start +len\n"
694 " - erase FLASH from addr 'start' to the end of sect "
695 "w/addr 'start'+'len'-1\n"
696 "erase N:SF[-SL]\n - erase sectors SF-SL in FLASH bank # N\n"
697 "erase bank N\n - erase FLASH bank # N\n"
698 TMP_ERASE
699 "erase all\n - erase all FLASH banks"
700 );
701
702 U_BOOT_CMD(
703 protect, 4, 0, do_protect,
704 "enable or disable FLASH write protection",
705 "on start end\n"
706 " - protect FLASH from addr 'start' to addr 'end'\n"
707 "protect on start +len\n"
708 " - protect FLASH from addr 'start' to end of sect "
709 "w/addr 'start'+'len'-1\n"
710 "protect on N:SF[-SL]\n"
711 " - protect sectors SF-SL in FLASH bank # N\n"
712 "protect on bank N\n - protect FLASH bank # N\n"
713 TMP_PROT_ON
714 "protect on all\n - protect all FLASH banks\n"
715 "protect off start end\n"
716 " - make FLASH from addr 'start' to addr 'end' writable\n"
717 "protect off start +len\n"
718 " - make FLASH from addr 'start' to end of sect "
719 "w/addr 'start'+'len'-1 wrtable\n"
720 "protect off N:SF[-SL]\n"
721 " - make sectors SF-SL writable in FLASH bank # N\n"
722 "protect off bank N\n - make FLASH bank # N writable\n"
723 TMP_PROT_OFF
724 "protect off all\n - make all FLASH banks writable"
725 );
726
727 #undef TMP_ERASE
728 #undef TMP_PROT_ON
729 #undef TMP_PROT_OFF