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wdenk452cfd62002-11-19 11:04:11 +00001/*
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>
wdenk452cfd62002-11-19 11:04:11 +000029#include <flash.h>
30
31#if (CONFIG_COMMANDS & CFG_CMD_FLASH)
32
33extern flash_info_t flash_info[]; /* info for FLASH chips */
34
35/*
36 * The user interface starts numbering for Flash banks with 1
37 * for historical reasons.
38 */
39
40/*
41 * this routine looks for an abbreviated flash range specification.
42 * the syntax is B:SF[-SL], where B is the bank number, SF is the first
43 * sector to erase, and SL is the last sector to erase (defaults to SF).
44 * bank numbers start at 1 to be consistent with other specs, sector numbers
45 * start at zero.
46 *
47 * returns: 1 - correct spec; *pinfo, *psf and *psl are
48 * set appropriately
49 * 0 - doesn't look like an abbreviated spec
50 * -1 - looks like an abbreviated spec, but got
51 * a parsing error, a number out of range,
52 * or an invalid flash bank.
53 */
54static int
55abbrev_spec(char *str, flash_info_t **pinfo, int *psf, int *psl)
56{
57 flash_info_t *fp;
58 int bank, first, last;
59 char *p, *ep;
60
61 if ((p = strchr(str, ':')) == NULL)
62 return 0;
63 *p++ = '\0';
64
65 bank = simple_strtoul(str, &ep, 10);
66 if (ep == str || *ep != '\0' ||
67 bank < 1 || bank > CFG_MAX_FLASH_BANKS ||
68 (fp = &flash_info[bank - 1])->flash_id == FLASH_UNKNOWN)
69 return -1;
70
71 str = p;
72 if ((p = strchr(str, '-')) != NULL)
73 *p++ = '\0';
74
75 first = simple_strtoul(str, &ep, 10);
76 if (ep == str || *ep != '\0' || first >= fp->sector_count)
77 return -1;
78
79 if (p != NULL) {
80 last = simple_strtoul(p, &ep, 10);
81 if (ep == p || *ep != '\0' ||
82 last < first || last >= fp->sector_count)
83 return -1;
84 }
85 else
86 last = first;
87
88 *pinfo = fp;
89 *psf = first;
90 *psl = last;
91
92 return 1;
93}
94int do_flinfo (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
95{
96 ulong bank;
97
98 if (argc == 1) { /* print info for all FLASH banks */
99 for (bank=0; bank <CFG_MAX_FLASH_BANKS; ++bank) {
wdenk874ac262003-07-24 23:38:38 +0000100 printf ("\nBank # %ld: ", bank+1);
wdenk452cfd62002-11-19 11:04:11 +0000101
102 flash_print_info (&flash_info[bank]);
103 }
104 return 0;
105 }
106
107 bank = simple_strtoul(argv[1], NULL, 16);
108 if ((bank < 1) || (bank > CFG_MAX_FLASH_BANKS)) {
wdenk874ac262003-07-24 23:38:38 +0000109 printf ("Only FLASH Banks # 1 ... # %d supported\n",
wdenk452cfd62002-11-19 11:04:11 +0000110 CFG_MAX_FLASH_BANKS);
111 return 1;
112 }
wdenk874ac262003-07-24 23:38:38 +0000113 printf ("\nBank # %ld: ", bank);
wdenk452cfd62002-11-19 11:04:11 +0000114 flash_print_info (&flash_info[bank-1]);
115 return 0;
116}
117int do_flerase(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
118{
119 flash_info_t *info;
120 ulong bank, addr_first, addr_last;
121 int n, sect_first, sect_last;
122 int rcode = 0;
123
124 if (argc < 2) {
wdenk874ac262003-07-24 23:38:38 +0000125 printf ("Usage:\n%s\n", cmdtp->usage);
wdenk452cfd62002-11-19 11:04:11 +0000126 return 1;
127 }
128
129 if (strcmp(argv[1], "all") == 0) {
130 for (bank=1; bank<=CFG_MAX_FLASH_BANKS; ++bank) {
wdenk874ac262003-07-24 23:38:38 +0000131 printf ("Erase Flash Bank # %ld ", bank);
wdenk452cfd62002-11-19 11:04:11 +0000132 info = &flash_info[bank-1];
133 rcode = flash_erase (info, 0, info->sector_count-1);
134 }
135 return rcode;
136 }
137
138 if ((n = abbrev_spec(argv[1], &info, &sect_first, &sect_last)) != 0) {
139 if (n < 0) {
wdenk874ac262003-07-24 23:38:38 +0000140 printf("Bad sector specification\n");
wdenk452cfd62002-11-19 11:04:11 +0000141 return 1;
142 }
wdenk874ac262003-07-24 23:38:38 +0000143 printf ("Erase Flash Sectors %d-%d in Bank # %d ",
wdenk452cfd62002-11-19 11:04:11 +0000144 sect_first, sect_last, (info-flash_info)+1);
145 rcode = flash_erase(info, sect_first, sect_last);
146 return rcode;
147 }
148
149 if (argc != 3) {
wdenk874ac262003-07-24 23:38:38 +0000150 printf ("Usage:\n%s\n", cmdtp->usage);
wdenk452cfd62002-11-19 11:04:11 +0000151 return 1;
152 }
153
154 if (strcmp(argv[1], "bank") == 0) {
155 bank = simple_strtoul(argv[2], NULL, 16);
156 if ((bank < 1) || (bank > CFG_MAX_FLASH_BANKS)) {
wdenk874ac262003-07-24 23:38:38 +0000157 printf ("Only FLASH Banks # 1 ... # %d supported\n",
wdenk452cfd62002-11-19 11:04:11 +0000158 CFG_MAX_FLASH_BANKS);
159 return 1;
160 }
wdenk874ac262003-07-24 23:38:38 +0000161 printf ("Erase Flash Bank # %ld ", bank);
wdenk452cfd62002-11-19 11:04:11 +0000162 info = &flash_info[bank-1];
163 rcode = flash_erase (info, 0, info->sector_count-1);
164 return rcode;
165 }
166
167 addr_first = simple_strtoul(argv[1], NULL, 16);
168 addr_last = simple_strtoul(argv[2], NULL, 16);
169
170 if (addr_first >= addr_last) {
wdenk874ac262003-07-24 23:38:38 +0000171 printf ("Usage:\n%s\n", cmdtp->usage);
wdenk452cfd62002-11-19 11:04:11 +0000172 return 1;
173 }
174
wdenk874ac262003-07-24 23:38:38 +0000175 printf ("Erase Flash from 0x%08lx to 0x%08lx ", addr_first, addr_last);
wdenk452cfd62002-11-19 11:04:11 +0000176 rcode = flash_sect_erase(addr_first, addr_last);
177 return rcode;
178}
179
180int flash_sect_erase (ulong addr_first, ulong addr_last)
181{
182 flash_info_t *info;
183 ulong bank;
184 int s_first, s_last;
185 int erased;
186 int rcode = 0;
187
188 erased = 0;
189
190 for (bank=0,info=&flash_info[0]; bank < CFG_MAX_FLASH_BANKS; ++bank, ++info) {
191 ulong b_end;
192 int sect;
193
194 if (info->flash_id == FLASH_UNKNOWN) {
195 continue;
196 }
197
198 b_end = info->start[0] + info->size - 1; /* bank end addr */
199
200 s_first = -1; /* first sector to erase */
201 s_last = -1; /* last sector to erase */
202
203 for (sect=0; sect < info->sector_count; ++sect) {
204 ulong end; /* last address in current sect */
205 short s_end;
206
207 s_end = info->sector_count - 1;
208
209 end = (sect == s_end) ? b_end : info->start[sect + 1] - 1;
210
211 if (addr_first > end)
212 continue;
213 if (addr_last < info->start[sect])
214 continue;
215
216 if (addr_first == info->start[sect]) {
217 s_first = sect;
218 }
219 if (addr_last == end) {
220 s_last = sect;
221 }
222 }
223 if (s_first>=0 && s_first<=s_last) {
224 erased += s_last - s_first + 1;
225 rcode = flash_erase (info, s_first, s_last);
226 }
227 }
228 if (erased) {
wdenk874ac262003-07-24 23:38:38 +0000229 /* printf ("Erased %d sectors\n", erased); */
wdenk452cfd62002-11-19 11:04:11 +0000230 } else {
wdenk874ac262003-07-24 23:38:38 +0000231 printf ("Error: start and/or end address"
wdenk452cfd62002-11-19 11:04:11 +0000232 " not on sector boundary\n");
233 rcode = 1;
234 }
235 return rcode;
236}
237
238
239int do_protect(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
240{
241 flash_info_t *info;
242 ulong bank, addr_first, addr_last;
243 int i, p, n, sect_first, sect_last;
244 int rcode = 0;
245
246 if (argc < 3) {
wdenk874ac262003-07-24 23:38:38 +0000247 printf ("Usage:\n%s\n", cmdtp->usage);
wdenk452cfd62002-11-19 11:04:11 +0000248 return 1;
249 }
250
251 if (strcmp(argv[1], "off") == 0)
252 p = 0;
253 else if (strcmp(argv[1], "on") == 0)
254 p = 1;
255 else {
wdenk874ac262003-07-24 23:38:38 +0000256 printf ("Usage:\n%s\n", cmdtp->usage);
wdenk452cfd62002-11-19 11:04:11 +0000257 return 1;
258 }
259
260 if (strcmp(argv[2], "all") == 0) {
261 for (bank=1; bank<=CFG_MAX_FLASH_BANKS; ++bank) {
262 info = &flash_info[bank-1];
263 if (info->flash_id == FLASH_UNKNOWN) {
264 continue;
265 }
wdenk874ac262003-07-24 23:38:38 +0000266 /*printf ("%sProtect Flash Bank # %ld\n", */
wdenk57b2d802003-06-27 21:31:46 +0000267 /* p ? "" : "Un-", bank); */
wdenk452cfd62002-11-19 11:04:11 +0000268
269 for (i=0; i<info->sector_count; ++i) {
270#if defined(CFG_FLASH_PROTECTION)
271 if (flash_real_protect(info, i, p))
272 rcode = 1;
273 putc ('.');
274#else
275 info->protect[i] = p;
276#endif /* CFG_FLASH_PROTECTION */
277 }
278 }
279
280#if defined(CFG_FLASH_PROTECTION)
281 if (!rcode) puts (" done\n");
282#endif /* CFG_FLASH_PROTECTION */
283
284 return rcode;
285 }
286
287 if ((n = abbrev_spec(argv[2], &info, &sect_first, &sect_last)) != 0) {
288 if (n < 0) {
wdenk874ac262003-07-24 23:38:38 +0000289 printf("Bad sector specification\n");
wdenk452cfd62002-11-19 11:04:11 +0000290 return 1;
291 }
wdenk874ac262003-07-24 23:38:38 +0000292 /*printf("%sProtect Flash Sectors %d-%d in Bank # %d\n", */
wdenk57b2d802003-06-27 21:31:46 +0000293 /* p ? "" : "Un-", sect_first, sect_last, */
294 /* (info-flash_info)+1); */
wdenk452cfd62002-11-19 11:04:11 +0000295 for (i = sect_first; i <= sect_last; i++) {
296#if defined(CFG_FLASH_PROTECTION)
297 if (flash_real_protect(info, i, p))
298 rcode = 1;
299 putc ('.');
300#else
301 info->protect[i] = p;
302#endif /* CFG_FLASH_PROTECTION */
303 }
304
305#if defined(CFG_FLASH_PROTECTION)
306 if (!rcode) puts (" done\n");
307#endif /* CFG_FLASH_PROTECTION */
308
309 return rcode;
310 }
311
312 if (argc != 4) {
wdenk874ac262003-07-24 23:38:38 +0000313 printf ("Usage:\n%s\n", cmdtp->usage);
wdenk452cfd62002-11-19 11:04:11 +0000314 return 1;
315 }
316
317 if (strcmp(argv[2], "bank") == 0) {
318 bank = simple_strtoul(argv[3], NULL, 16);
319 if ((bank < 1) || (bank > CFG_MAX_FLASH_BANKS)) {
wdenk874ac262003-07-24 23:38:38 +0000320 printf ("Only FLASH Banks # 1 ... # %d supported\n",
wdenk452cfd62002-11-19 11:04:11 +0000321 CFG_MAX_FLASH_BANKS);
322 return 1;
323 }
wdenk874ac262003-07-24 23:38:38 +0000324 printf ("%sProtect Flash Bank # %ld\n",
wdenk452cfd62002-11-19 11:04:11 +0000325 p ? "" : "Un-", bank);
326 info = &flash_info[bank-1];
327
328 if (info->flash_id == FLASH_UNKNOWN) {
wdenk874ac262003-07-24 23:38:38 +0000329 printf ("missing or unknown FLASH type\n");
wdenk452cfd62002-11-19 11:04:11 +0000330 return 1;
331 }
332 for (i=0; i<info->sector_count; ++i) {
333#if defined(CFG_FLASH_PROTECTION)
334 if (flash_real_protect(info, i, p))
335 rcode = 1;
336 putc ('.');
337#else
338 info->protect[i] = p;
339#endif /* CFG_FLASH_PROTECTION */
340 }
341
342#if defined(CFG_FLASH_PROTECTION)
343 if (!rcode) puts (" done\n");
344#endif /* CFG_FLASH_PROTECTION */
345
346 return rcode;
347 }
348
349 addr_first = simple_strtoul(argv[2], NULL, 16);
350 addr_last = simple_strtoul(argv[3], NULL, 16);
351
352 if (addr_first >= addr_last) {
wdenk874ac262003-07-24 23:38:38 +0000353 printf ("Usage:\n%s\n", cmdtp->usage);
wdenk452cfd62002-11-19 11:04:11 +0000354 return 1;
355 }
356 rcode = flash_sect_protect (p, addr_first, addr_last);
357 return rcode;
358}
359int flash_sect_protect (int p, ulong addr_first, ulong addr_last)
360{
361 flash_info_t *info;
362 ulong bank;
363 int s_first, s_last;
364 int protected, i;
365 int rcode = 0;
366
367 protected = 0;
368
369 for (bank=0,info=&flash_info[0]; bank < CFG_MAX_FLASH_BANKS; ++bank, ++info) {
370 ulong b_end;
371 int sect;
372
373 if (info->flash_id == FLASH_UNKNOWN) {
374 continue;
375 }
376
377 b_end = info->start[0] + info->size - 1; /* bank end addr */
378
379 s_first = -1; /* first sector to erase */
380 s_last = -1; /* last sector to erase */
381
382 for (sect=0; sect < info->sector_count; ++sect) {
383 ulong end; /* last address in current sect */
384 short s_end;
385
386 s_end = info->sector_count - 1;
387
388 end = (sect == s_end) ? b_end : info->start[sect + 1] - 1;
389
390 if (addr_first > end)
391 continue;
392 if (addr_last < info->start[sect])
393 continue;
394
395 if (addr_first == info->start[sect]) {
396 s_first = sect;
397 }
398 if (addr_last == end) {
399 s_last = sect;
400 }
401 }
402 if (s_first>=0 && s_first<=s_last) {
403 protected += s_last - s_first + 1;
404 for (i=s_first; i<=s_last; ++i) {
405#if defined(CFG_FLASH_PROTECTION)
406 if (flash_real_protect(info, i, p))
407 rcode = 1;
408 putc ('.');
409#else
410 info->protect[i] = p;
411#endif /* CFG_FLASH_PROTECTION */
412 }
413 }
414#if defined(CFG_FLASH_PROTECTION)
415 if (!rcode) putc ('\n');
416#endif /* CFG_FLASH_PROTECTION */
417
418 }
419 if (protected) {
wdenk874ac262003-07-24 23:38:38 +0000420 /* printf ("%sProtected %d sectors\n", */
wdenk57b2d802003-06-27 21:31:46 +0000421 /* p ? "" : "Un-", protected); */
wdenk452cfd62002-11-19 11:04:11 +0000422 } else {
wdenk874ac262003-07-24 23:38:38 +0000423 printf ("Error: start and/or end address"
wdenk452cfd62002-11-19 11:04:11 +0000424 " not on sector boundary\n");
425 rcode = 1;
426 }
427 return rcode;
428}
429
430#endif /* CFG_CMD_FLASH */