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7f2313d8290cdea7fa734f8b04c26c691b7108a1
[openocd.git] / src / flash / cfi.c
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include "replacements.h"
25
26 #include "cfi.h"
27
28 #include "flash.h"
29 #include "target.h"
30 #include "log.h"
31 #include "armv4_5.h"
32 #include "algorithm.h"
33 #include "binarybuffer.h"
34 #include "types.h"
35
36 #include <stdlib.h>
37 #include <string.h>
38 #include <unistd.h>
39
40 int cfi_register_commands(struct command_context_s *cmd_ctx);
41 int cfi_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
42 int cfi_erase(struct flash_bank_s *bank, int first, int last);
43 int cfi_protect(struct flash_bank_s *bank, int set, int first, int last);
44 int cfi_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
45 int cfi_probe(struct flash_bank_s *bank);
46 int cfi_erase_check(struct flash_bank_s *bank);
47 int cfi_protect_check(struct flash_bank_s *bank);
48 int cfi_info(struct flash_bank_s *bank, char *buf, int buf_size);
49
50 int cfi_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
51
52 #define CFI_MAX_BUS_WIDTH 4
53 #define CFI_MAX_CHIP_WIDTH 4
54
55 flash_driver_t cfi_flash =
56 {
57 .name = "cfi",
58 .register_commands = cfi_register_commands,
59 .flash_bank_command = cfi_flash_bank_command,
60 .erase = cfi_erase,
61 .protect = cfi_protect,
62 .write = cfi_write,
63 .probe = cfi_probe,
64 .erase_check = cfi_erase_check,
65 .protect_check = cfi_protect_check,
66 .info = cfi_info
67 };
68
69 inline u32 flash_address(flash_bank_t *bank, int sector, u32 offset)
70 {
71 /* while the sector list isn't built, only accesses to sector 0 work */
72 if (sector == 0)
73 return bank->base + offset * bank->bus_width;
74 else
75 {
76 if (!bank->sectors)
77 {
78 ERROR("BUG: sector list not yet built");
79 exit(-1);
80 }
81 return bank->base + bank->sectors[sector].offset + offset * bank->bus_width;
82 }
83
84 }
85
86 void cfi_command(flash_bank_t *bank, u8 cmd, u8 *cmd_buf)
87 {
88 cfi_flash_bank_t *cfi_info = bank->driver_priv;
89 int i;
90
91 /* clear whole buffer, to ensure bits that exceed the bus_width
92 * are set to zero
93 */
94 for (i = 0; i < CFI_MAX_BUS_WIDTH; i++)
95 cmd_buf[i] = 0;
96
97 if (cfi_info->target->endianness == TARGET_LITTLE_ENDIAN)
98 {
99 for (i = bank->bus_width; i > 0; i--)
100 {
101 *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
102 }
103 }
104 else
105 {
106 for (i = 1; i <= bank->bus_width; i++)
107 {
108 *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
109 }
110 }
111 }
112
113 /* read unsigned 8-bit value from the bank
114 * flash banks are expected to be made of similar chips
115 * the query result should be the same for all
116 */
117 u8 cfi_query_u8(flash_bank_t *bank, int sector, u32 offset)
118 {
119 cfi_flash_bank_t *cfi_info = bank->driver_priv;
120 target_t *target = cfi_info->target;
121 u8 data[CFI_MAX_BUS_WIDTH];
122
123 target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data);
124
125 if (cfi_info->target->endianness == TARGET_LITTLE_ENDIAN)
126 return data[0];
127 else
128 return data[bank->bus_width - 1];
129 }
130
131 /* read unsigned 8-bit value from the bank
132 * in case of a bank made of multiple chips,
133 * the individual values are ORed
134 */
135 u8 cfi_get_u8(flash_bank_t *bank, int sector, u32 offset)
136 {
137 cfi_flash_bank_t *cfi_info = bank->driver_priv;
138 target_t *target = cfi_info->target;
139 u8 data[CFI_MAX_BUS_WIDTH];
140 int i;
141
142 target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data);
143
144 if (cfi_info->target->endianness == TARGET_LITTLE_ENDIAN)
145 {
146 for (i = 0; i < bank->bus_width / bank->chip_width; i++)
147 data[0] |= data[i];
148
149 return data[0];
150 }
151 else
152 {
153 u8 value = 0;
154 for (i = 0; i < bank->bus_width / bank->chip_width; i++)
155 value |= data[bank->bus_width - 1 - i];
156
157 return value;
158 }
159 }
160
161 u16 cfi_query_u16(flash_bank_t *bank, int sector, u32 offset)
162 {
163 cfi_flash_bank_t *cfi_info = bank->driver_priv;
164 target_t *target = cfi_info->target;
165 u8 data[CFI_MAX_BUS_WIDTH * 2];
166
167 target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 2, data);
168
169 if (cfi_info->target->endianness == TARGET_LITTLE_ENDIAN)
170 return data[0] | data[bank->bus_width] << 8;
171 else
172 return data[bank->bus_width - 1] | data[(2 * bank->bus_width) - 1] << 8;
173 }
174
175 u32 cfi_query_u32(flash_bank_t *bank, int sector, u32 offset)
176 {
177 cfi_flash_bank_t *cfi_info = bank->driver_priv;
178 target_t *target = cfi_info->target;
179 u8 data[CFI_MAX_BUS_WIDTH * 4];
180
181 target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 4, data);
182
183 if (cfi_info->target->endianness == TARGET_LITTLE_ENDIAN)
184 return data[0] | data[bank->bus_width] << 8 | data[bank->bus_width * 2] << 16 | data[bank->bus_width * 3] << 24;
185 else
186 return data[bank->bus_width - 1] | data[(2* bank->bus_width) - 1] << 8 |
187 data[(3 * bank->bus_width) - 1] << 16 | data[(4 * bank->bus_width) - 1] << 24;
188 }
189
190 void cfi_intel_clear_status_register(flash_bank_t *bank)
191 {
192 cfi_flash_bank_t *cfi_info = bank->driver_priv;
193 target_t *target = cfi_info->target;
194 u8 command[8];
195
196 if (target->state != TARGET_HALTED)
197 {
198 ERROR("BUG: attempted to clear status register while target wasn't halted");
199 exit(-1);
200 }
201
202 cfi_command(bank, 0x50, command);
203 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
204 }
205
206 u8 cfi_intel_wait_status_busy(flash_bank_t *bank, int timeout)
207 {
208 u8 status;
209
210 while ((!((status = cfi_get_u8(bank, 0, 0x0)) & 0x80)) && (timeout-- > 0))
211 {
212 DEBUG("status: 0x%x", status);
213 usleep(1000);
214 }
215
216 /* mask out bit 0 (reserved) */
217 status = status & 0xfe;
218
219 DEBUG("status: 0x%x", status);
220
221 if ((status & 0x80) != 0x80)
222 {
223 ERROR("timeout while waiting for WSM to become ready");
224 }
225 else if (status != 0x80)
226 {
227 ERROR("status register: 0x%x", status);
228 if (status & 0x2)
229 ERROR("Block Lock-Bit Detected, Operation Abort");
230 if (status & 0x4)
231 ERROR("Program suspended");
232 if (status & 0x8)
233 ERROR("Low Programming Voltage Detected, Operation Aborted");
234 if (status & 0x10)
235 ERROR("Program Error / Error in Setting Lock-Bit");
236 if (status & 0x20)
237 ERROR("Error in Block Erasure or Clear Lock-Bits");
238 if (status & 0x40)
239 ERROR("Block Erase Suspended");
240
241 cfi_intel_clear_status_register(bank);
242 }
243
244 return status;
245 }
246 int cfi_read_intel_pri_ext(flash_bank_t *bank)
247 {
248 cfi_flash_bank_t *cfi_info = bank->driver_priv;
249 cfi_intel_pri_ext_t *pri_ext = malloc(sizeof(cfi_intel_pri_ext_t));
250 target_t *target = cfi_info->target;
251 u8 command[8];
252
253 cfi_info->pri_ext = pri_ext;
254
255 pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);
256 pri_ext->pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1);
257 pri_ext->pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2);
258
259 if ((pri_ext->pri[0] != 'P') || (pri_ext->pri[1] != 'R') || (pri_ext->pri[2] != 'I'))
260 {
261 cfi_command(bank, 0xf0, command);
262 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
263 cfi_command(bank, 0xff, command);
264 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
265 return ERROR_FLASH_BANK_INVALID;
266 }
267
268 pri_ext->major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3);
269 pri_ext->minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4);
270
271 DEBUG("pri: '%c%c%c', version: %c.%c", pri_ext->pri[0], pri_ext->pri[1], pri_ext->pri[2], pri_ext->major_version, pri_ext->minor_version);
272
273 pri_ext->feature_support = cfi_query_u32(bank, 0, cfi_info->pri_addr + 5);
274 pri_ext->suspend_cmd_support = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9);
275 pri_ext->blk_status_reg_mask = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xa);
276
277 DEBUG("feature_support: 0x%x, suspend_cmd_support: 0x%x, blk_status_reg_mask: 0x%x", pri_ext->feature_support, pri_ext->suspend_cmd_support, pri_ext->blk_status_reg_mask);
278
279 pri_ext->vcc_optimal = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xc);
280 pri_ext->vpp_optimal = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xd);
281
282 DEBUG("Vcc opt: %1.1x.%1.1x, Vpp opt: %1.1x.%1.1x",
283 (pri_ext->vcc_optimal & 0xf0) >> 4, pri_ext->vcc_optimal & 0x0f,
284 (pri_ext->vpp_optimal & 0xf0) >> 4, pri_ext->vpp_optimal & 0x0f);
285
286 pri_ext->num_protection_fields = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xe);
287 if (pri_ext->num_protection_fields != 1)
288 {
289 WARNING("expected one protection register field, but found %i", pri_ext->num_protection_fields);
290 }
291
292 pri_ext->prot_reg_addr = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xf);
293 pri_ext->fact_prot_reg_size = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x11);
294 pri_ext->user_prot_reg_size = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x12);
295
296 DEBUG("protection_fields: %i, prot_reg_addr: 0x%x, factory pre-programmed: %i, user programmable: %i", pri_ext->num_protection_fields, pri_ext->prot_reg_addr, 1 << pri_ext->fact_prot_reg_size, 1 << pri_ext->user_prot_reg_size);
297
298 return ERROR_OK;
299 }
300
301 int cfi_intel_info(struct flash_bank_s *bank, char *buf, int buf_size)
302 {
303 int printed;
304 cfi_flash_bank_t *cfi_info = bank->driver_priv;
305 cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;
306
307 printed = snprintf(buf, buf_size, "\nintel primary algorithm extend information:\n");
308 buf += printed;
309 buf_size -= printed;
310
311 printed = snprintf(buf, buf_size, "pri: '%c%c%c', version: %c.%c\n", pri_ext->pri[0], pri_ext->pri[1], pri_ext->pri[2], pri_ext->major_version, pri_ext->minor_version);
312 buf += printed;
313 buf_size -= printed;
314
315 printed = snprintf(buf, buf_size, "feature_support: 0x%x, suspend_cmd_support: 0x%x, blk_status_reg_mask: 0x%x\n", pri_ext->feature_support, pri_ext->suspend_cmd_support, pri_ext->blk_status_reg_mask);
316 buf += printed;
317 buf_size -= printed;
318
319 printed = snprintf(buf, buf_size, "Vcc opt: %1.1x.%1.1x, Vpp opt: %1.1x.%1.1x\n",
320 (pri_ext->vcc_optimal & 0xf0) >> 4, pri_ext->vcc_optimal & 0x0f,
321 (pri_ext->vpp_optimal & 0xf0) >> 4, pri_ext->vpp_optimal & 0x0f);
322 buf += printed;
323 buf_size -= printed;
324
325 printed = snprintf(buf, buf_size, "protection_fields: %i, prot_reg_addr: 0x%x, factory pre-programmed: %i, user programmable: %i\n", pri_ext->num_protection_fields, pri_ext->prot_reg_addr, 1 << pri_ext->fact_prot_reg_size, 1 << pri_ext->user_prot_reg_size);
326
327 return ERROR_OK;
328 }
329
330 int cfi_register_commands(struct command_context_s *cmd_ctx)
331 {
332 command_t *cfi_cmd = register_command(cmd_ctx, NULL, "cfi", NULL, COMMAND_ANY, NULL);
333 /*
334 register_command(cmd_ctx, cfi_cmd, "part_id", cfi_handle_part_id_command, COMMAND_EXEC,
335 "print part id of cfi flash bank <num>");
336 */
337 return ERROR_OK;
338 }
339
340 /* flash_bank cfi <base> <size> <chip_width> <bus_width> <target#>
341 */
342 int cfi_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
343 {
344 cfi_flash_bank_t *cfi_info;
345
346 if (argc < 6)
347 {
348 WARNING("incomplete flash_bank cfi configuration");
349 return ERROR_FLASH_BANK_INVALID;
350 }
351
352 if ((strtoul(args[4], NULL, 0) > CFI_MAX_CHIP_WIDTH)
353 || (strtoul(args[3], NULL, 0) > CFI_MAX_BUS_WIDTH))
354 {
355 ERROR("chip and bus width have to specified in byte");
356 return ERROR_FLASH_BANK_INVALID;
357 }
358
359 cfi_info = malloc(sizeof(cfi_flash_bank_t));
360 bank->driver_priv = cfi_info;
361
362 cfi_info->target = get_target_by_num(strtoul(args[5], NULL, 0));
363 if (!cfi_info->target)
364 {
365 ERROR("no target '%i' configured", args[5]);
366 exit(-1);
367 }
368
369 cfi_info->write_algorithm = NULL;
370
371 /* bank wasn't probed yet */
372 cfi_info->qry[0] = -1;
373
374 return ERROR_OK;
375 }
376
377 int cfi_intel_erase(struct flash_bank_s *bank, int first, int last)
378 {
379 cfi_flash_bank_t *cfi_info = bank->driver_priv;
380 cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;
381 target_t *target = cfi_info->target;
382 u8 command[8];
383 int i;
384
385 cfi_intel_clear_status_register(bank);
386
387 for (i = first; i <= last; i++)
388 {
389 cfi_command(bank, 0x20, command);
390 target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
391
392 cfi_command(bank, 0xd0, command);
393 target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
394
395 if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->block_erase_timeout_typ)) == 0x80)
396 bank->sectors[i].is_erased = 1;
397 else
398 {
399 cfi_command(bank, 0xff, command);
400 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
401
402 ERROR("couldn't erase block %i of flash bank at base 0x%x", i, bank->base);
403 return ERROR_FLASH_OPERATION_FAILED;
404 }
405 }
406
407 cfi_command(bank, 0xff, command);
408 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
409
410 return ERROR_OK;
411 }
412
413 int cfi_erase(struct flash_bank_s *bank, int first, int last)
414 {
415 cfi_flash_bank_t *cfi_info = bank->driver_priv;
416
417 if (cfi_info->target->state != TARGET_HALTED)
418 {
419 return ERROR_TARGET_NOT_HALTED;
420 }
421
422 if ((first < 0) || (last < first) || (last >= bank->num_sectors))
423 {
424 return ERROR_FLASH_SECTOR_INVALID;
425 }
426
427 if (cfi_info->qry[0] != 'Q')
428 return ERROR_FLASH_BANK_NOT_PROBED;
429
430 switch(cfi_info->pri_id)
431 {
432 case 1:
433 case 3:
434 return cfi_intel_erase(bank, first, last);
435 break;
436 default:
437 ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
438 break;
439 }
440
441 return ERROR_OK;
442 }
443
444 int cfi_intel_protect(struct flash_bank_s *bank, int set, int first, int last)
445 {
446 cfi_flash_bank_t *cfi_info = bank->driver_priv;
447 cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;
448 target_t *target = cfi_info->target;
449 u8 command[8];
450 int retry = 0;
451 int i;
452
453 /* if the device supports neither legacy lock/unlock (bit 3) nor
454 * instant individual block locking (bit 5).
455 */
456 if (!(pri_ext->feature_support & 0x28))
457 return ERROR_FLASH_OPERATION_FAILED;
458
459 cfi_intel_clear_status_register(bank);
460
461 for (i = first; i <= last; i++)
462 {
463 cfi_command(bank, 0x60, command);
464 DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));
465 target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
466 if (set)
467 {
468 cfi_command(bank, 0x01, command);
469 DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));
470 target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
471 bank->sectors[i].is_protected = 1;
472 }
473 else
474 {
475 cfi_command(bank, 0xd0, command);
476 DEBUG("address: 0x%4.4x, command: 0x%4.4x", flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));
477 target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
478 bank->sectors[i].is_protected = 0;
479 }
480
481 /* instant individual block locking doesn't require reading of the status register */
482 if (!(pri_ext->feature_support & 0x20))
483 {
484 /* Clear lock bits operation may take up to 1.4s */
485 cfi_intel_wait_status_busy(bank, 1400);
486 }
487 else
488 {
489 u8 block_status;
490 /* read block lock bit, to verify status */
491 cfi_command(bank, 0x90, command);
492 target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);
493 block_status = cfi_get_u8(bank, i, 0x2);
494
495 if ((block_status & 0x1) != set)
496 {
497 ERROR("couldn't change block lock status (set = %i, block_status = 0x%2.2x)", set, block_status);
498 cfi_command(bank, 0x70, command);
499 target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);
500 cfi_intel_wait_status_busy(bank, 10);
501
502 if (retry > 10)
503 return ERROR_FLASH_OPERATION_FAILED;
504 else
505 {
506 i--;
507 retry++;
508 }
509 }
510 }
511 }
512
513 /* if the device doesn't support individual block lock bits set/clear,
514 * all blocks have been unlocked in parallel, so we set those that should be protected
515 */
516 if ((!set) && (!(pri_ext->feature_support & 0x20)))
517 {
518 for (i = 0; i < bank->num_sectors; i++)
519 {
520 cfi_intel_clear_status_register(bank);
521 cfi_command(bank, 0x60, command);
522 target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
523 if (bank->sectors[i].is_protected == 1)
524 {
525 cfi_command(bank, 0x01, command);
526 target->type->write_memory(target, flash_address(bank, i, 0x0), bank->bus_width, 1, command);
527 }
528
529 cfi_intel_wait_status_busy(bank, 100);
530 }
531 }
532
533 cfi_command(bank, 0xff, command);
534 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
535
536 return ERROR_OK;
537 }
538
539 int cfi_protect(struct flash_bank_s *bank, int set, int first, int last)
540 {
541 cfi_flash_bank_t *cfi_info = bank->driver_priv;
542
543 if (cfi_info->target->state != TARGET_HALTED)
544 {
545 return ERROR_TARGET_NOT_HALTED;
546 }
547
548 if ((first < 0) || (last < first) || (last >= bank->num_sectors))
549 {
550 return ERROR_FLASH_SECTOR_INVALID;
551 }
552
553 if (cfi_info->qry[0] != 'Q')
554 return ERROR_FLASH_BANK_NOT_PROBED;
555
556 switch(cfi_info->pri_id)
557 {
558 case 1:
559 case 3:
560 cfi_intel_protect(bank, set, first, last);
561 break;
562 default:
563 ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
564 break;
565 }
566
567 return ERROR_OK;
568 }
569
570 void cfi_add_byte(struct flash_bank_s *bank, u8 *word, u8 byte)
571 {
572 cfi_flash_bank_t *cfi_info = bank->driver_priv;
573 target_t *target = cfi_info->target;
574
575 int i;
576
577 if (target->endianness == TARGET_LITTLE_ENDIAN)
578 {
579 /* shift bytes */
580 for (i = 0; i < bank->bus_width - 1; i++)
581 word[i] = word[i + 1];
582 word[bank->bus_width - 1] = byte;
583 }
584 else
585 {
586 /* shift bytes */
587 for (i = bank->bus_width - 1; i > 0; i--)
588 word[i] = word[i - 1];
589 word[0] = byte;
590 }
591 }
592
593 int cfi_intel_write_block(struct flash_bank_s *bank, u8 *buffer, u32 address, u32 count)
594 {
595 cfi_flash_bank_t *cfi_info = bank->driver_priv;
596 cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;
597 target_t *target = cfi_info->target;
598 reg_param_t reg_params[7];
599 armv4_5_algorithm_t armv4_5_info;
600 working_area_t *source;
601 u32 buffer_size = 32768;
602 u8 write_command[CFI_MAX_BUS_WIDTH];
603 u8 busy_pattern[CFI_MAX_BUS_WIDTH];
604 u8 error_pattern[CFI_MAX_BUS_WIDTH];
605 int i;
606 int retval;
607
608 /* algorithm register usage:
609 * r0: source address (in RAM)
610 * r1: target address (in Flash)
611 * r2: count
612 * r3: flash write command
613 * r4: status byte (returned to host)
614 * r5: busy test pattern
615 * r6: error test pattern
616 */
617
618 u32 word_32_code[] = {
619 0xe4904004, /* loop: ldr r4, [r0], #4 */
620 0xe5813000, /* str r3, [r1] */
621 0xe5814000, /* str r4, [r1] */
622 0xe5914000, /* busy: ldr r4, [r1] */
623 0xe0047005, /* and r7, r4, r5 */
624 0xe1570005, /* cmp r7, r5 */
625 0x1afffffb, /* bne busy */
626 0xe1140006, /* tst r4, r6 */
627 0x1a000003, /* bne done */
628 0xe2522001, /* subs r2, r2, #1 */
629 0x0a000001, /* beq done */
630 0xe2811004, /* add r1, r1 #4 */
631 0xeafffff2, /* b loop */
632 0xeafffffe, /* done: b -2 */
633 };
634
635 u32 word_16_code[] = {
636 0xe0d040b2, /* loop: ldrh r4, [r0], #2 */
637 0xe1c130b0, /* strh r3, [r1] */
638 0xe1c140b0, /* strh r4, [r1] */
639 0xe1d140b0, /* busy ldrh r4, [r1] */
640 0xe0047005, /* and r7, r4, r5 */
641 0xe1570005, /* cmp r7, r5 */
642 0x1afffffb, /* bne busy */
643 0xe1140006, /* tst r4, r6 */
644 0x1a000003, /* bne done */
645 0xe2522001, /* subs r2, r2, #1 */
646 0x0a000001, /* beq done */
647 0xe2811002, /* add r1, r1 #2 */
648 0xeafffff2, /* b loop */
649 0xeafffffe, /* done: b -2 */
650 };
651
652 u32 word_8_code[] = {
653 0xe4d04001, /* loop: ldrb r4, [r0], #1 */
654 0xe5c13000, /* strb r3, [r1] */
655 0xe5c14000, /* strb r4, [r1] */
656 0xe5d14000, /* busy ldrb r4, [r1] */
657 0xe0047005, /* and r7, r4, r5 */
658 0xe1570005, /* cmp r7, r5 */
659 0x1afffffb, /* bne busy */
660 0xe1140006, /* tst r4, r6 */
661 0x1a000003, /* bne done */
662 0xe2522001, /* subs r2, r2, #1 */
663 0x0a000001, /* beq done */
664 0xe2811001, /* add r1, r1 #1 */
665 0xeafffff2, /* b loop */
666 0xeafffffe, /* done: b -2 */
667 };
668
669 cfi_intel_clear_status_register(bank);
670
671 armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
672 armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
673 armv4_5_info.core_state = ARMV4_5_STATE_ARM;
674
675 /* flash write code */
676 if (!cfi_info->write_algorithm)
677 {
678 if (target_alloc_working_area(target, 4 * 14, &cfi_info->write_algorithm) != ERROR_OK)
679 {
680 WARNING("no working area available, can't do block memory writes");
681 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
682 };
683
684 /* write algorithm code to working area */
685 if (bank->bus_width == 1)
686 {
687 target_write_buffer(target, cfi_info->write_algorithm->address, 14 * 4, (u8*)word_8_code);
688 }
689 else if (bank->bus_width == 2)
690 {
691 target_write_buffer(target, cfi_info->write_algorithm->address, 14 * 4, (u8*)word_16_code);
692 }
693 else if (bank->bus_width == 4)
694 {
695 target_write_buffer(target, cfi_info->write_algorithm->address, 14 * 4, (u8*)word_32_code);
696 }
697 else
698 {
699 return ERROR_FLASH_OPERATION_FAILED;
700 }
701 }
702
703 while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
704 {
705 buffer_size /= 2;
706 if (buffer_size <= 256)
707 {
708 /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
709 if (cfi_info->write_algorithm)
710 target_free_working_area(target, cfi_info->write_algorithm);
711
712 WARNING("no large enough working area available, can't do block memory writes");
713 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
714 }
715 };
716
717 init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
718 init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
719 init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);
720 init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT);
721 init_reg_param(&reg_params[4], "r4", 32, PARAM_IN);
722 init_reg_param(&reg_params[5], "r5", 32, PARAM_OUT);
723 init_reg_param(&reg_params[6], "r6", 32, PARAM_OUT);
724
725 cfi_command(bank, 0x40, write_command);
726 cfi_command(bank, 0x80, busy_pattern);
727 cfi_command(bank, 0x7e, error_pattern);
728
729 while (count > 0)
730 {
731 u32 thisrun_count = (count > buffer_size) ? buffer_size : count;
732
733 target_write_buffer(target, source->address, thisrun_count, buffer);
734
735 buf_set_u32(reg_params[0].value, 0, 32, source->address);
736 buf_set_u32(reg_params[1].value, 0, 32, address);
737 buf_set_u32(reg_params[2].value, 0, 32, thisrun_count / bank->bus_width);
738 buf_set_u32(reg_params[3].value, 0, 32, target_buffer_get_u32(target, write_command));
739 buf_set_u32(reg_params[5].value, 0, 32, target_buffer_get_u32(target, busy_pattern));
740 buf_set_u32(reg_params[6].value, 0, 32, target_buffer_get_u32(target, error_pattern));
741
742 if ((retval = target->type->run_algorithm(target, 0, NULL, 7, reg_params, cfi_info->write_algorithm->address, cfi_info->write_algorithm->address + (13 * 4), 10000, &armv4_5_info)) != ERROR_OK)
743 {
744 cfi_intel_clear_status_register(bank);
745 return ERROR_FLASH_OPERATION_FAILED;
746 }
747
748 if (buf_get_u32(reg_params[4].value, 0, 32) & target_buffer_get_u32(target, error_pattern))
749 {
750 /* read status register (outputs debug inforation) */
751 cfi_intel_wait_status_busy(bank, 100);
752 cfi_intel_clear_status_register(bank);
753 return ERROR_FLASH_OPERATION_FAILED;
754 }
755
756 buffer += thisrun_count;
757 address += thisrun_count;
758 count -= thisrun_count;
759 }
760
761 target_free_working_area(target, source);
762
763 destroy_reg_param(&reg_params[0]);
764 destroy_reg_param(&reg_params[1]);
765 destroy_reg_param(&reg_params[2]);
766 destroy_reg_param(&reg_params[3]);
767 destroy_reg_param(&reg_params[4]);
768 destroy_reg_param(&reg_params[5]);
769 destroy_reg_param(&reg_params[6]);
770
771 return ERROR_OK;
772 }
773
774 int cfi_intel_write_word(struct flash_bank_s *bank, u8 *word, u32 address)
775 {
776 cfi_flash_bank_t *cfi_info = bank->driver_priv;
777 cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;
778 target_t *target = cfi_info->target;
779 u8 command[8];
780
781 cfi_intel_clear_status_register(bank);
782 cfi_command(bank, 0x40, command);
783 target->type->write_memory(target, address, bank->bus_width, 1, command);
784
785 target->type->write_memory(target, address, bank->bus_width, 1, word);
786
787 if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->word_write_timeout_max)) != 0x80)
788 {
789 cfi_command(bank, 0xff, command);
790 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
791
792 ERROR("couldn't write word at base 0x%x, address %x", bank->base, address);
793 return ERROR_FLASH_OPERATION_FAILED;
794 }
795
796 return ERROR_OK;
797 }
798
799 int cfi_write_word(struct flash_bank_s *bank, u8 *word, u32 address)
800 {
801 cfi_flash_bank_t *cfi_info = bank->driver_priv;
802 target_t *target = cfi_info->target;
803
804 switch(cfi_info->pri_id)
805 {
806 case 1:
807 case 3:
808 return cfi_intel_write_word(bank, word, address);
809 break;
810 default:
811 ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
812 break;
813 }
814
815 return ERROR_FLASH_OPERATION_FAILED;
816 }
817
818 int cfi_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
819 {
820 cfi_flash_bank_t *cfi_info = bank->driver_priv;
821 target_t *target = cfi_info->target;
822 u32 address = bank->base + offset; /* address of first byte to be programmed */
823 u32 write_p, copy_p;
824 int align; /* number of unaligned bytes */
825 u8 current_word[CFI_MAX_BUS_WIDTH * 4]; /* word (bus_width size) currently being programmed */
826 int i;
827 int retval;
828
829 if (cfi_info->target->state != TARGET_HALTED)
830 {
831 return ERROR_TARGET_NOT_HALTED;
832 }
833
834 if (offset + count > bank->size)
835 return ERROR_FLASH_DST_OUT_OF_BANK;
836
837 if (cfi_info->qry[0] != 'Q')
838 return ERROR_FLASH_BANK_NOT_PROBED;
839
840 /* start at the first byte of the first word (bus_width size) */
841 write_p = address & ~(bank->bus_width - 1);
842 if ((align = address - write_p) != 0)
843 {
844 for (i = 0; i < bank->bus_width; i++)
845 current_word[i] = 0;
846 copy_p = write_p;
847
848 /* copy bytes before the first write address */
849 for (i = 0; i < align; ++i, ++copy_p)
850 {
851 u8 byte;
852 target->type->read_memory(target, copy_p, 1, 1, &byte);
853 cfi_add_byte(bank, current_word, byte);
854 }
855
856 /* add bytes from the buffer */
857 for (; (i < bank->bus_width) && (count > 0); i++)
858 {
859 cfi_add_byte(bank, current_word, *buffer++);
860 count--;
861 copy_p++;
862 }
863
864 /* if the buffer is already finished, copy bytes after the last write address */
865 for (; (count == 0) && (i < bank->bus_width); ++i, ++copy_p)
866 {
867 u8 byte;
868 target->type->read_memory(target, copy_p, 1, 1, &byte);
869 cfi_add_byte(bank, current_word, byte);
870 }
871
872 retval = cfi_write_word(bank, current_word, write_p);
873 if (retval != ERROR_OK)
874 return retval;
875 write_p = copy_p;
876 }
877
878 /* handle blocks of bus_size aligned bytes */
879 switch(cfi_info->pri_id)
880 {
881 /* try block writes (fails without working area) */
882 case 1:
883 case 3:
884 retval = cfi_intel_write_block(bank, buffer, write_p, count);
885 break;
886 default:
887 ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
888 break;
889 }
890 if (retval != ERROR_OK)
891 {
892 if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
893 {
894 /* fall back to memory writes */
895 while (count > bank->bus_width)
896 {
897 for (i = 0; i < bank->bus_width; i++)
898 current_word[i] = 0;
899
900 for (i = 0; i < bank->bus_width; i++)
901 {
902 cfi_add_byte(bank, current_word, *buffer++);
903 }
904
905 retval = cfi_write_word(bank, current_word, write_p);
906 if (retval != ERROR_OK)
907 return retval;
908 write_p += bank->bus_width;
909 count -= bank->bus_width;
910 }
911 }
912 else
913 return retval;
914 }
915
916 /* handle unaligned tail bytes */
917 if (count > 0)
918 {
919 copy_p = write_p;
920 for (i = 0; i < bank->bus_width; i++)
921 current_word[i] = 0;
922
923 for (i = 0; (i < bank->bus_width) && (count > 0); ++i, ++copy_p)
924 {
925 cfi_add_byte(bank, current_word, *buffer++);
926 count--;
927 }
928 for (; i < bank->bus_width; ++i, ++copy_p)
929 {
930 u8 byte;
931 target->type->read_memory(target, copy_p, 1, 1, &byte);
932 cfi_add_byte(bank, current_word, byte);
933 }
934 retval = cfi_write_word(bank, current_word, write_p);
935 if (retval != ERROR_OK)
936 return retval;
937 }
938
939 /* return to read array mode */
940 cfi_command(bank, 0xf0, current_word);
941 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);
942 cfi_command(bank, 0xff, current_word);
943 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, current_word);
944
945 return ERROR_OK;
946 }
947
948 int cfi_probe(struct flash_bank_s *bank)
949 {
950 cfi_flash_bank_t *cfi_info = bank->driver_priv;
951 target_t *target = cfi_info->target;
952 u8 command[8];
953
954
955 cfi_command(bank, 0x98, command);
956 target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);
957
958 cfi_info->qry[0] = cfi_query_u8(bank, 0, 0x10);
959 cfi_info->qry[1] = cfi_query_u8(bank, 0, 0x11);
960 cfi_info->qry[2] = cfi_query_u8(bank, 0, 0x12);
961
962 DEBUG("CFI qry returned: 0x%2.2x 0x%2.2x 0x%2.2x", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2]);
963
964 if ((cfi_info->qry[0] != 'Q') || (cfi_info->qry[1] != 'R') || (cfi_info->qry[2] != 'Y'))
965 {
966 cfi_command(bank, 0xf0, command);
967 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
968 cfi_command(bank, 0xff, command);
969 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
970 return ERROR_FLASH_BANK_INVALID;
971 }
972
973 cfi_info->pri_id = cfi_query_u16(bank, 0, 0x13);
974 cfi_info->pri_addr = cfi_query_u16(bank, 0, 0x15);
975 cfi_info->alt_id = cfi_query_u16(bank, 0, 0x17);
976 cfi_info->alt_addr = cfi_query_u16(bank, 0, 0x19);
977
978 DEBUG("qry: '%c%c%c', pri_id: 0x%4.4x, pri_addr: 0x%4.4x, alt_id: 0x%4.4x, alt_addr: 0x%4.4x", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2], cfi_info->pri_id, cfi_info->pri_addr, cfi_info->alt_id, cfi_info->alt_addr);
979
980 cfi_info->vcc_min = cfi_query_u8(bank, 0, 0x1b);
981 cfi_info->vcc_max = cfi_query_u8(bank, 0, 0x1c);
982 cfi_info->vpp_min = cfi_query_u8(bank, 0, 0x1d);
983 cfi_info->vpp_max = cfi_query_u8(bank, 0, 0x1e);
984 cfi_info->word_write_timeout_typ = cfi_query_u8(bank, 0, 0x1f);
985 cfi_info->buf_write_timeout_typ = cfi_query_u8(bank, 0, 0x20);
986 cfi_info->block_erase_timeout_typ = cfi_query_u8(bank, 0, 0x21);
987 cfi_info->chip_erase_timeout_typ = cfi_query_u8(bank, 0, 0x22);
988 cfi_info->word_write_timeout_max = cfi_query_u8(bank, 0, 0x23);
989 cfi_info->buf_write_timeout_max = cfi_query_u8(bank, 0, 0x24);
990 cfi_info->block_erase_timeout_max = cfi_query_u8(bank, 0, 0x25);
991 cfi_info->chip_erase_timeout_max = cfi_query_u8(bank, 0, 0x26);
992
993 DEBUG("Vcc min: %1.1x.%1.1x, Vcc max: %1.1x.%1.1x, Vpp min: %1.1x.%1.1x, Vpp max: %1.1x.%1.1x",
994 (cfi_info->vcc_min & 0xf0) >> 4, cfi_info->vcc_min & 0x0f,
995 (cfi_info->vcc_max & 0xf0) >> 4, cfi_info->vcc_max & 0x0f,
996 (cfi_info->vpp_min & 0xf0) >> 4, cfi_info->vpp_min & 0x0f,
997 (cfi_info->vpp_max & 0xf0) >> 4, cfi_info->vpp_max & 0x0f);
998 DEBUG("typ. word write timeout: %u, typ. buf write timeout: %u, typ. block erase timeout: %u, typ. chip erase timeout: %u", 1 << cfi_info->word_write_timeout_typ, 1 << cfi_info->buf_write_timeout_typ,
999 1 << cfi_info->block_erase_timeout_typ, 1 << cfi_info->chip_erase_timeout_typ);
1000 DEBUG("max. word write timeout: %u, max. buf write timeout: %u, max. block erase timeout: %u, max. chip erase timeout: %u", (1 << cfi_info->word_write_timeout_max) * (1 << cfi_info->word_write_timeout_typ),
1001 (1 << cfi_info->buf_write_timeout_max) * (1 << cfi_info->buf_write_timeout_typ),
1002 (1 << cfi_info->block_erase_timeout_max) * (1 << cfi_info->block_erase_timeout_typ),
1003 (1 << cfi_info->chip_erase_timeout_max) * (1 << cfi_info->chip_erase_timeout_typ));
1004
1005 cfi_info->dev_size = cfi_query_u8(bank, 0, 0x27);
1006 cfi_info->interface_desc = cfi_query_u16(bank, 0, 0x28);
1007 cfi_info->max_buf_write_size = cfi_query_u16(bank, 0, 0x2a);
1008 cfi_info->num_erase_regions = cfi_query_u8(bank, 0, 0x2c);
1009
1010 DEBUG("size: 0x%x, interface desc: %i, max buffer write size: %x", 1 << cfi_info->dev_size, cfi_info->interface_desc, (1 << cfi_info->max_buf_write_size));
1011
1012 if (((1 << cfi_info->dev_size) * bank->bus_width / bank->chip_width) != bank->size)
1013 {
1014 WARNING("configuration specifies 0x%x size, but a 0x%x size flash was found", bank->size, 1 << cfi_info->dev_size);
1015 }
1016
1017 if (cfi_info->num_erase_regions)
1018 {
1019 int i;
1020 int num_sectors = 0;
1021 int sector = 0;
1022 u32 offset = 0;
1023 cfi_info->erase_region_info = malloc(4 * cfi_info->num_erase_regions);
1024
1025 for (i = 0; i < cfi_info->num_erase_regions; i++)
1026 {
1027 cfi_info->erase_region_info[i] = cfi_query_u32(bank, 0, 0x2d + (4 * i));
1028 DEBUG("erase region[%i]: %i blocks of size 0x%x", i, (cfi_info->erase_region_info[i] & 0xffff) + 1, (cfi_info->erase_region_info[i] >> 16) * 256);
1029
1030 num_sectors += (cfi_info->erase_region_info[i] & 0xffff) + 1;
1031 }
1032
1033 bank->num_sectors = num_sectors;
1034 bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);
1035 for (i = 0; i < cfi_info->num_erase_regions; i++)
1036 {
1037 int j;
1038 for (j = 0; j < (cfi_info->erase_region_info[i] & 0xffff) + 1; j++)
1039 {
1040 bank->sectors[sector].offset = offset;
1041 bank->sectors[sector].size = ((cfi_info->erase_region_info[i] >> 16) * 256) * bank->bus_width / bank->chip_width;
1042 offset += bank->sectors[sector].size;
1043 bank->sectors[sector].is_erased = -1;
1044 bank->sectors[sector].is_protected = -1;
1045 sector++;
1046 }
1047 }
1048 }
1049 else
1050 {
1051 cfi_info->erase_region_info = NULL;
1052 }
1053
1054 switch(cfi_info->pri_id)
1055 {
1056 case 1:
1057 case 3:
1058 cfi_read_intel_pri_ext(bank);
1059 break;
1060 default:
1061 ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
1062 break;
1063 }
1064
1065 /* return to read array mode */
1066 cfi_command(bank, 0xf0, command);
1067 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
1068 cfi_command(bank, 0xff, command);
1069 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
1070
1071 return ERROR_OK;
1072 }
1073
1074 int cfi_erase_check(struct flash_bank_s *bank)
1075 {
1076 cfi_flash_bank_t *cfi_info = bank->driver_priv;
1077 target_t *target = cfi_info->target;
1078 int i;
1079 int retval;
1080
1081 if (!cfi_info->erase_check_algorithm)
1082 {
1083 u32 erase_check_code[] =
1084 {
1085 0xe4d03001, /* ldrb r3, [r0], #1 */
1086 0xe0022003, /* and r2, r2, r3 */
1087 0xe2511001, /* subs r1, r1, #1 */
1088 0x1afffffb, /* b -4 */
1089 0xeafffffe /* b 0 */
1090 };
1091
1092 /* make sure we have a working area */
1093 if (target_alloc_working_area(target, 20, &cfi_info->erase_check_algorithm) != ERROR_OK)
1094 {
1095 WARNING("no working area available, falling back to slow memory reads");
1096 }
1097 else
1098 {
1099 u8 erase_check_code_buf[5 * 4];
1100
1101 for (i = 0; i < 5; i++)
1102 target_buffer_set_u32(target, erase_check_code_buf + (i*4), erase_check_code[i]);
1103
1104 /* write algorithm code to working area */
1105 target->type->write_memory(target, cfi_info->erase_check_algorithm->address, 4, 5, erase_check_code_buf);
1106 }
1107 }
1108
1109 if (!cfi_info->erase_check_algorithm)
1110 {
1111 u32 *buffer = malloc(4096);
1112
1113 for (i = 0; i < bank->num_sectors; i++)
1114 {
1115 u32 address = bank->base + bank->sectors[i].offset;
1116 u32 size = bank->sectors[i].size;
1117 u32 check = 0xffffffffU;
1118 int erased = 1;
1119
1120 while (size > 0)
1121 {
1122 u32 thisrun_size = (size > 4096) ? 4096 : size;
1123 int j;
1124
1125 target->type->read_memory(target, address, 4, thisrun_size / 4, (u8*)buffer);
1126
1127 for (j = 0; j < thisrun_size / 4; j++)
1128 check &= buffer[j];
1129
1130 if (check != 0xffffffff)
1131 {
1132 erased = 0;
1133 break;
1134 }
1135
1136 size -= thisrun_size;
1137 address += thisrun_size;
1138 }
1139
1140 bank->sectors[i].is_erased = erased;
1141 }
1142
1143 free(buffer);
1144 }
1145 else
1146 {
1147 for (i = 0; i < bank->num_sectors; i++)
1148 {
1149 u32 address = bank->base + bank->sectors[i].offset;
1150 u32 size = bank->sectors[i].size;
1151
1152 reg_param_t reg_params[3];
1153 armv4_5_algorithm_t armv4_5_info;
1154
1155 armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
1156 armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
1157 armv4_5_info.core_state = ARMV4_5_STATE_ARM;
1158
1159 init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
1160 buf_set_u32(reg_params[0].value, 0, 32, address);
1161
1162 init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
1163 buf_set_u32(reg_params[1].value, 0, 32, size);
1164
1165 init_reg_param(&reg_params[2], "r2", 32, PARAM_IN_OUT);
1166 buf_set_u32(reg_params[2].value, 0, 32, 0xff);
1167
1168 if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params, cfi_info->erase_check_algorithm->address, cfi_info->erase_check_algorithm->address + 0x10, 10000, &armv4_5_info)) != ERROR_OK)
1169 return ERROR_FLASH_OPERATION_FAILED;
1170
1171 if (buf_get_u32(reg_params[2].value, 0, 32) == 0xff)
1172 bank->sectors[i].is_erased = 1;
1173 else
1174 bank->sectors[i].is_erased = 0;
1175
1176 destroy_reg_param(&reg_params[0]);
1177 destroy_reg_param(&reg_params[1]);
1178 destroy_reg_param(&reg_params[2]);
1179 }
1180 }
1181
1182 return ERROR_OK;
1183 }
1184
1185 int cfi_intel_protect_check(struct flash_bank_s *bank)
1186 {
1187 cfi_flash_bank_t *cfi_info = bank->driver_priv;
1188 cfi_intel_pri_ext_t *pri_ext = cfi_info->pri_ext;
1189 target_t *target = cfi_info->target;
1190 u8 command[CFI_MAX_BUS_WIDTH];
1191 int i;
1192
1193 /* check if block lock bits are supported on this device */
1194 if (!(pri_ext->blk_status_reg_mask & 0x1))
1195 return ERROR_FLASH_OPERATION_FAILED;
1196
1197 cfi_command(bank, 0x90, command);
1198 target->type->write_memory(target, flash_address(bank, 0, 0x55), bank->bus_width, 1, command);
1199
1200 for (i = 0; i < bank->num_sectors; i++)
1201 {
1202 u8 block_status = cfi_get_u8(bank, i, 0x2);
1203
1204 if (block_status & 1)
1205 bank->sectors[i].is_protected = 1;
1206 else
1207 bank->sectors[i].is_protected = 0;
1208 }
1209
1210 cfi_command(bank, 0xff, command);
1211 target->type->write_memory(target, flash_address(bank, 0, 0x0), bank->bus_width, 1, command);
1212
1213 return ERROR_OK;
1214 }
1215
1216 int cfi_protect_check(struct flash_bank_s *bank)
1217 {
1218 cfi_flash_bank_t *cfi_info = bank->driver_priv;
1219 target_t *target = cfi_info->target;
1220
1221 if (cfi_info->qry[0] != 'Q')
1222 return ERROR_FLASH_BANK_NOT_PROBED;
1223
1224 switch(cfi_info->pri_id)
1225 {
1226 case 1:
1227 case 3:
1228 return cfi_intel_protect_check(bank);
1229 break;
1230 default:
1231 ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
1232 break;
1233 }
1234
1235 return ERROR_OK;
1236 }
1237
1238 int cfi_info(struct flash_bank_s *bank, char *buf, int buf_size)
1239 {
1240 int printed;
1241 cfi_flash_bank_t *cfi_info = bank->driver_priv;
1242
1243 if (cfi_info->qry[0] == -1)
1244 {
1245 printed = snprintf(buf, buf_size, "\ncfi flash bank not probed yet\n");
1246 return ERROR_OK;
1247 }
1248
1249 printed = snprintf(buf, buf_size, "\ncfi information:\n");
1250 buf += printed;
1251 buf_size -= printed;
1252
1253 printed = snprintf(buf, buf_size, "qry: '%c%c%c', pri_id: 0x%4.4x, pri_addr: 0x%4.4x, alt_id: 0x%4.4x, alt_addr: 0x%4.4x\n", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2], cfi_info->pri_id, cfi_info->pri_addr, cfi_info->alt_id, cfi_info->alt_addr);
1254 buf += printed;
1255 buf_size -= printed;
1256
1257 printed = snprintf(buf, buf_size, "Vcc min: %1.1x.%1.1x, Vcc max: %1.1x.%1.1x, Vpp min: %1.1x.%1.1x, Vpp max: %1.1x.%1.1x\n", (cfi_info->vcc_min & 0xf0) >> 4, cfi_info->vcc_min & 0x0f,
1258 (cfi_info->vcc_max & 0xf0) >> 4, cfi_info->vcc_max & 0x0f,
1259 (cfi_info->vpp_min & 0xf0) >> 4, cfi_info->vpp_min & 0x0f,
1260 (cfi_info->vpp_max & 0xf0) >> 4, cfi_info->vpp_max & 0x0f);
1261 buf += printed;
1262 buf_size -= printed;
1263
1264 printed = snprintf(buf, buf_size, "typ. word write timeout: %u, typ. buf write timeout: %u, typ. block erase timeout: %u, typ. chip erase timeout: %u\n", 1 << cfi_info->word_write_timeout_typ, 1 << cfi_info->buf_write_timeout_typ,
1265 1 << cfi_info->block_erase_timeout_typ, 1 << cfi_info->chip_erase_timeout_typ);
1266 buf += printed;
1267 buf_size -= printed;
1268
1269 printed = snprintf(buf, buf_size, "max. word write timeout: %u, max. buf write timeout: %u, max. block erase timeout: %u, max. chip erase timeout: %u\n", (1 << cfi_info->word_write_timeout_max) * (1 << cfi_info->word_write_timeout_typ),
1270 (1 << cfi_info->buf_write_timeout_max) * (1 << cfi_info->buf_write_timeout_typ),
1271 (1 << cfi_info->block_erase_timeout_max) * (1 << cfi_info->block_erase_timeout_typ),
1272 (1 << cfi_info->chip_erase_timeout_max) * (1 << cfi_info->chip_erase_timeout_typ));
1273 buf += printed;
1274 buf_size -= printed;
1275
1276 printed = snprintf(buf, buf_size, "size: 0x%x, interface desc: %i, max buffer write size: %x\n", 1 << cfi_info->dev_size, cfi_info->interface_desc, cfi_info->max_buf_write_size);
1277 buf += printed;
1278 buf_size -= printed;
1279
1280 switch(cfi_info->pri_id)
1281 {
1282 case 1:
1283 case 3:
1284 cfi_intel_info(bank, buf, buf_size);
1285 break;
1286 default:
1287 ERROR("cfi primary command set %i unsupported", cfi_info->pri_id);
1288 break;
1289 }
1290
1291 return ERROR_OK;
1292 }
Open On-Chip Debugger