1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
|
/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* FLASH support
*/
#include <common.h>
#include <command.h>
#include <flash.h>
#if defined(CONFIG_CMD_FLASH)
extern flash_info_t flash_info[]; /* info for FLASH chips */
/*
* The user interface starts numbering for Flash banks with 1
* for historical reasons.
*/
/*
* this routine looks for an abbreviated flash range specification.
* the syntax is B:SF[-SL], where B is the bank number, SF is the first
* sector to erase, and SL is the last sector to erase (defaults to SF).
* bank numbers start at 1 to be consistent with other specs, sector numbers
* start at zero.
*
* returns: 1 - correct spec; *pinfo, *psf and *psl are
* set appropriately
* 0 - doesn't look like an abbreviated spec
* -1 - looks like an abbreviated spec, but got
* a parsing error, a number out of range,
* or an invalid flash bank.
*/
static int
abbrev_spec(char *str, flash_info_t **pinfo, int *psf, int *psl)
{
flash_info_t *fp;
int bank, first, last;
char *p, *ep;
if ((p = strchr(str, ':')) == NULL)
return 0;
*p++ = '\0';
bank = simple_strtoul(str, &ep, 10);
if (ep == str || *ep != '\0' ||
bank < 1 || bank > CONFIG_SYS_MAX_FLASH_BANKS ||
(fp = &flash_info[bank - 1])->flash_id == FLASH_UNKNOWN)
return -1;
str = p;
if ((p = strchr(str, '-')) != NULL)
*p++ = '\0';
first = simple_strtoul(str, &ep, 10);
if (ep == str || *ep != '\0' || first >= fp->sector_count)
return -1;
if (p != NULL) {
last = simple_strtoul(p, &ep, 10);
if (ep == p || *ep != '\0' ||
last < first || last >= fp->sector_count)
return -1;
}
else
last = first;
*pinfo = fp;
*psf = first;
*psl = last;
return 1;
}
int do_flinfo (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
{
ulong bank;
if (argc == 1) { /* print info for all FLASH banks */
for (bank=0; bank <CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
printf ("\nBank # %ld: ", bank+1);
flash_print_info (&flash_info[bank]);
}
return 0;
}
bank = simple_strtoul(argv[1], NULL, 16);
if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) {
printf ("Only FLASH Banks # 1 ... # %d supported\n",
CONFIG_SYS_MAX_FLASH_BANKS);
return 1;
}
printf ("\nBank # %ld: ", bank);
flash_print_info (&flash_info[bank-1]);
return 0;
}
int do_flerase(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
{
flash_info_t *info;
ulong bank, addr_first, addr_last;
int n, sect_first, sect_last;
int rcode = 0;
if (argc < 2)
return cmd_usage(cmdtp);
if (strcmp(argv[1], "all") == 0) {
for (bank=1; bank<=CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
printf ("Erase Flash Bank # %ld ", bank);
info = &flash_info[bank-1];
rcode = flash_erase (info, 0, info->sector_count-1);
}
return rcode;
}
if ((n = abbrev_spec(argv[1], &info, §_first, §_last)) != 0) {
if (n < 0) {
printf("Bad sector specification\n");
return 1;
}
printf ("Erase Flash Sectors %d-%d in Bank # %d ",
sect_first, sect_last, (info-flash_info)+1);
rcode = flash_erase(info, sect_first, sect_last);
return rcode;
}
if (argc != 3)
return cmd_usage(cmdtp);
if (strcmp(argv[1], "bank") == 0) {
bank = simple_strtoul(argv[2], NULL, 16);
if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) {
printf ("Only FLASH Banks # 1 ... # %d supported\n",
CONFIG_SYS_MAX_FLASH_BANKS);
return 1;
}
printf ("Erase Flash Bank # %ld ", bank);
info = &flash_info[bank-1];
rcode = flash_erase (info, 0, info->sector_count-1);
return rcode;
}
addr_first = simple_strtoul(argv[1], NULL, 16);
addr_last = simple_strtoul(argv[2], NULL, 16);
if (addr_first >= addr_last)
return cmd_usage(cmdtp);
printf ("Erase Flash from 0x%08lx to 0x%08lx ", addr_first, addr_last);
rcode = flash_sect_erase(addr_first, addr_last);
return rcode;
}
int flash_sect_erase (ulong addr_first, ulong addr_last)
{
flash_info_t *info;
ulong bank;
int s_first, s_last;
int erased;
int rcode = 0;
erased = 0;
for (bank=0,info = &flash_info[0]; bank < CONFIG_SYS_MAX_FLASH_BANKS; ++bank, ++info) {
ulong b_end;
int sect;
if (info->flash_id == FLASH_UNKNOWN) {
continue;
}
b_end = info->start[0] + info->size - 1; /* bank end addr */
s_first = -1; /* first sector to erase */
s_last = -1; /* last sector to erase */
for (sect=0; sect < info->sector_count; ++sect) {
ulong end; /* last address in current sect */
short s_end;
s_end = info->sector_count - 1;
end = (sect == s_end) ? b_end : info->start[sect + 1] - 1;
if (addr_first > end)
continue;
if (addr_last < info->start[sect])
continue;
if (addr_first == info->start[sect]) {
s_first = sect;
}
if (addr_last == end) {
s_last = sect;
}
}
if (s_first>=0 && s_first<=s_last) {
erased += s_last - s_first + 1;
rcode = flash_erase (info, s_first, s_last);
}
}
if (erased) {
/* printf ("Erased %d sectors\n", erased); */
} else {
printf ("Error: start and/or end address"
" not on sector boundary\n");
rcode = 1;
}
return rcode;
}
int do_protect(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
{
flash_info_t *info;
ulong bank, addr_first, addr_last;
int i, p, n, sect_first, sect_last;
int rcode = 0;
if (argc < 3)
return cmd_usage(cmdtp);
if (strcmp(argv[1], "off") == 0)
p = 0;
else if (strcmp(argv[1], "on") == 0)
p = 1;
else
return cmd_usage(cmdtp);
if (strcmp(argv[2], "all") == 0) {
for (bank=1; bank<=CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
info = &flash_info[bank-1];
if (info->flash_id == FLASH_UNKNOWN) {
continue;
}
/*printf ("%sProtect Flash Bank # %ld\n", */
/* p ? "" : "Un-", bank); */
for (i=0; i<info->sector_count; ++i) {
#if defined(CONFIG_SYS_FLASH_PROTECTION)
if (flash_real_protect(info, i, p))
rcode = 1;
putc ('.');
#else
info->protect[i] = p;
#endif /* CONFIG_SYS_FLASH_PROTECTION */
}
}
#if defined(CONFIG_SYS_FLASH_PROTECTION)
if (!rcode) puts (" done\n");
#endif /* CONFIG_SYS_FLASH_PROTECTION */
return rcode;
}
if ((n = abbrev_spec(argv[2], &info, §_first, §_last)) != 0) {
if (n < 0) {
printf("Bad sector specification\n");
return 1;
}
/*printf("%sProtect Flash Sectors %d-%d in Bank # %d\n", */
/* p ? "" : "Un-", sect_first, sect_last, */
/* (info-flash_info)+1); */
for (i = sect_first; i <= sect_last; i++) {
#if defined(CONFIG_SYS_FLASH_PROTECTION)
if (flash_real_protect(info, i, p))
rcode = 1;
putc ('.');
#else
info->protect[i] = p;
#endif /* CONFIG_SYS_FLASH_PROTECTION */
}
#if defined(CONFIG_SYS_FLASH_PROTECTION)
if (!rcode) puts (" done\n");
#endif /* CONFIG_SYS_FLASH_PROTECTION */
return rcode;
}
if (argc != 4)
return cmd_usage(cmdtp);
if (strcmp(argv[2], "bank") == 0) {
bank = simple_strtoul(argv[3], NULL, 16);
if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) {
printf ("Only FLASH Banks # 1 ... # %d supported\n",
CONFIG_SYS_MAX_FLASH_BANKS);
return 1;
}
printf ("%sProtect Flash Bank # %ld\n",
p ? "" : "Un-", bank);
info = &flash_info[bank-1];
if (info->flash_id == FLASH_UNKNOWN) {
printf ("missing or unknown FLASH type\n");
return 1;
}
for (i=0; i<info->sector_count; ++i) {
#if defined(CONFIG_SYS_FLASH_PROTECTION)
if (flash_real_protect(info, i, p))
rcode = 1;
putc ('.');
#else
info->protect[i] = p;
#endif /* CONFIG_SYS_FLASH_PROTECTION */
}
#if defined(CONFIG_SYS_FLASH_PROTECTION)
if (!rcode)
puts(" done\n");
#endif /* CONFIG_SYS_FLASH_PROTECTION */
return rcode;
}
addr_first = simple_strtoul(argv[2], NULL, 16);
addr_last = simple_strtoul(argv[3], NULL, 16);
if (addr_first >= addr_last)
return cmd_usage(cmdtp);
return flash_sect_protect (p, addr_first, addr_last);
}
int flash_sect_protect (int p, ulong addr_first, ulong addr_last)
{
flash_info_t *info;
ulong bank;
int s_first, s_last;
int protected, i;
int rcode = 0;
protected = 0;
for (bank=0,info = &flash_info[0]; bank < CONFIG_SYS_MAX_FLASH_BANKS; ++bank, ++info) {
ulong b_end;
int sect;
if (info->flash_id == FLASH_UNKNOWN) {
continue;
}
b_end = info->start[0] + info->size - 1; /* bank end addr */
s_first = -1; /* first sector to erase */
s_last = -1; /* last sector to erase */
for (sect=0; sect < info->sector_count; ++sect) {
ulong end; /* last address in current sect */
short s_end;
s_end = info->sector_count - 1;
end = (sect == s_end) ? b_end : info->start[sect + 1] - 1;
if (addr_first > end)
continue;
if (addr_last < info->start[sect])
continue;
if (addr_first == info->start[sect]) {
s_first = sect;
}
if (addr_last == end) {
s_last = sect;
}
}
if (s_first>=0 && s_first<=s_last) {
protected += s_last - s_first + 1;
for (i=s_first; i<=s_last; ++i) {
#if defined(CONFIG_SYS_FLASH_PROTECTION)
if (flash_real_protect(info, i, p))
rcode = 1;
putc ('.');
#else
info->protect[i] = p;
#endif /* CONFIG_SYS_FLASH_PROTECTION */
}
}
#if defined(CONFIG_SYS_FLASH_PROTECTION)
if (!rcode) putc ('\n');
#endif /* CONFIG_SYS_FLASH_PROTECTION */
}
if (protected) {
/* printf ("%sProtected %d sectors\n", */
/* p ? "" : "Un-", protected); */
} else {
printf ("Error: start and/or end address"
" not on sector boundary\n");
rcode = 1;
}
return rcode;
}
#endif
|
