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arm11 burst writes are now only enabled for writes larger than 1 word. Single word...
[dnglaze.git] / src / flash / lpc2000.c
blob5dcf1bbaf96390e6f3cffa5d9cf6e7f3843105b6
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * LPC1700 support Copyright (C) 2009 by Audrius Urmanavicius *
6 * didele.deze@gmail.com *
7 * *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (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 *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
23
24 #ifdef HAVE_CONFIG_H
25 #include "config.h"
26 #endif
27
28 #include "lpc2000.h"
29 #include "armv4_5.h"
30 #include "armv7m.h"
31 #include "binarybuffer.h"
32
33
34 /* flash programming support for NXP LPC17xx and LPC2xxx devices
35 * currently supported devices:
36 * variant 1 (lpc2000_v1):
37 * - 2104 | 5 | 6
38 * - 2114 | 9
39 * - 2124 | 9
40 * - 2194
41 * - 2212 | 4
42 * - 2292 | 4
43 *
44 * variant 2 (lpc2000_v2):
45 * - 213x
46 * - 214x
47 * - 2101 | 2 | 3
48 * - 2364 | 6 | 8
49 * - 2378
50 *
51 * lpc1700:
52 * - 175x
53 * - 176x (tested with LPC1768)
54 */
55
56 static int lpc2000_register_commands(struct command_context_s *cmd_ctx);
57 static int lpc2000_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
58 static int lpc2000_erase(struct flash_bank_s *bank, int first, int last);
59 static int lpc2000_protect(struct flash_bank_s *bank, int set, int first, int last);
60 static int lpc2000_write(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset, uint32_t count);
61 static int lpc2000_probe(struct flash_bank_s *bank);
62 static int lpc2000_erase_check(struct flash_bank_s *bank);
63 static int lpc2000_protect_check(struct flash_bank_s *bank);
64 static int lpc2000_info(struct flash_bank_s *bank, char *buf, int buf_size);
65
66 static int lpc2000_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
67
68 flash_driver_t lpc2000_flash =
69 {
70 .name = "lpc2000",
71 .register_commands = lpc2000_register_commands,
72 .flash_bank_command = lpc2000_flash_bank_command,
73 .erase = lpc2000_erase,
74 .protect = lpc2000_protect,
75 .write = lpc2000_write,
76 .probe = lpc2000_probe,
77 .auto_probe = lpc2000_probe,
78 .erase_check = lpc2000_erase_check,
79 .protect_check = lpc2000_protect_check,
80 .info = lpc2000_info
81 };
82
83 static int lpc2000_register_commands(struct command_context_s *cmd_ctx)
84 {
85 command_t *lpc2000_cmd = register_command(cmd_ctx, NULL, "lpc2000", NULL, COMMAND_ANY, NULL);
86
87 register_command(cmd_ctx, lpc2000_cmd, "part_id", lpc2000_handle_part_id_command, COMMAND_EXEC,
88 "print part id of lpc2000 flash bank <num>");
89
90 return ERROR_OK;
91 }
92
93 static int lpc2000_build_sector_list(struct flash_bank_s *bank)
94 {
95 lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
96 int i;
97 uint32_t offset = 0;
98
99 /* default to a 4096 write buffer */
100 lpc2000_info->cmd51_max_buffer = 4096;
101
102 if (lpc2000_info->variant == lpc2000_v1)
103 {
104 /* variant 1 has different layout for 128kb and 256kb flashes */
105 if (bank->size == 128 * 1024)
106 {
107 bank->num_sectors = 16;
108 bank->sectors = malloc(sizeof(flash_sector_t) * 16);
109 for (i = 0; i < 16; i++)
110 {
111 bank->sectors[i].offset = offset;
112 bank->sectors[i].size = 8 * 1024;
113 offset += bank->sectors[i].size;
114 bank->sectors[i].is_erased = -1;
115 bank->sectors[i].is_protected = 1;
116 }
117 }
118 else if (bank->size == 256 * 1024)
119 {
120 bank->num_sectors = 18;
121 bank->sectors = malloc(sizeof(flash_sector_t) * 18);
122
123 for (i = 0; i < 8; i++)
124 {
125 bank->sectors[i].offset = offset;
126 bank->sectors[i].size = 8 * 1024;
127 offset += bank->sectors[i].size;
128 bank->sectors[i].is_erased = -1;
129 bank->sectors[i].is_protected = 1;
130 }
131 for (i = 8; i < 10; i++)
132 {
133 bank->sectors[i].offset = offset;
134 bank->sectors[i].size = 64 * 1024;
135 offset += bank->sectors[i].size;
136 bank->sectors[i].is_erased = -1;
137 bank->sectors[i].is_protected = 1;
138 }
139 for (i = 10; i < 18; i++)
140 {
141 bank->sectors[i].offset = offset;
142 bank->sectors[i].size = 8 * 1024;
143 offset += bank->sectors[i].size;
144 bank->sectors[i].is_erased = -1;
145 bank->sectors[i].is_protected = 1;
146 }
147 }
148 else
149 {
150 LOG_ERROR("BUG: unknown bank->size encountered");
151 exit(-1);
152 }
153 }
154 else if (lpc2000_info->variant == lpc2000_v2)
155 {
156 /* variant 2 has a uniform layout, only number of sectors differs */
157 switch (bank->size)
158 {
159 case 4 * 1024:
160 lpc2000_info->cmd51_max_buffer = 1024;
161 bank->num_sectors = 1;
162 break;
163 case 8 * 1024:
164 lpc2000_info->cmd51_max_buffer = 1024;
165 bank->num_sectors = 2;
166 break;
167 case 16 * 1024:
168 bank->num_sectors = 4;
169 break;
170 case 32 * 1024:
171 bank->num_sectors = 8;
172 break;
173 case 64 * 1024:
174 bank->num_sectors = 9;
175 break;
176 case 128 * 1024:
177 bank->num_sectors = 11;
178 break;
179 case 256 * 1024:
180 bank->num_sectors = 15;
181 break;
182 case 512 * 1024:
183 case 500 * 1024:
184 bank->num_sectors = 27;
185 break;
186 default:
187 LOG_ERROR("BUG: unknown bank->size encountered");
188 exit(-1);
189 break;
190 }
191
192 bank->sectors = malloc(sizeof(flash_sector_t) * bank->num_sectors);
193
194 for (i = 0; i < bank->num_sectors; i++)
195 {
196 if ((i >= 0) && (i < 8))
197 {
198 bank->sectors[i].offset = offset;
199 bank->sectors[i].size = 4 * 1024;
200 offset += bank->sectors[i].size;
201 bank->sectors[i].is_erased = -1;
202 bank->sectors[i].is_protected = 1;
203 }
204 if ((i >= 8) && (i < 22))
205 {
206 bank->sectors[i].offset = offset;
207 bank->sectors[i].size = 32 * 1024;
208 offset += bank->sectors[i].size;
209 bank->sectors[i].is_erased = -1;
210 bank->sectors[i].is_protected = 1;
211 }
212 if ((i >= 22) && (i < 27))
213 {
214 bank->sectors[i].offset = offset;
215 bank->sectors[i].size = 4 * 1024;
216 offset += bank->sectors[i].size;
217 bank->sectors[i].is_erased = -1;
218 bank->sectors[i].is_protected = 1;
219 }
220 }
221 }
222 else if (lpc2000_info->variant == lpc1700)
223 {
224 switch(bank->size)
225 {
226 case 32 * 1024:
227 bank->num_sectors = 8;
228 break;
229 case 64 * 1024:
230 bank->num_sectors = 16;
231 break;
232 case 128 * 1024:
233 bank->num_sectors = 18;
234 break;
235 case 256 * 1024:
236 bank->num_sectors = 22;
237 break;
238 case 512 * 1024:
239 bank->num_sectors = 30;
240 break;
241 default:
242 LOG_ERROR("BUG: unknown bank->size encountered");
243 exit(-1);
244 }
245
246 bank->sectors = malloc(sizeof(flash_sector_t) * bank->num_sectors);
247
248 for(i = 0; i < bank->num_sectors; i++)
249 {
250 bank->sectors[i].offset = offset;
251 /* sectors 0-15 are 4kB-sized, 16 and above are 32kB-sized for LPC17xx devices */
252 bank->sectors[i].size = (i < 16)? 4 * 1024 : 32 * 1024;
253 offset += bank->sectors[i].size;
254 bank->sectors[i].is_erased = -1;
255 bank->sectors[i].is_protected = 1;
256 }
257 }
258 else
259 {
260 LOG_ERROR("BUG: unknown lpc2000_info->variant encountered");
261 exit(-1);
262 }
263
264 return ERROR_OK;
265 }
266
267 /* call LPC1700/LPC2000 IAP function
268 * uses 180 bytes working area
269 * 0x0 to 0x7: jump gate (BX to thumb state, b -2 to wait)
270 * 0x8 to 0x1f: command parameter table (1+5 words)
271 * 0x20 to 0x33: command result table (1+4 words)
272 * 0x34 to 0xb3: stack (only 128b needed)
273 */
274 static int lpc2000_iap_call(flash_bank_t *bank, int code, uint32_t param_table[5], uint32_t result_table[4])
275 {
276 int retval;
277 lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
278 target_t *target = bank->target;
279 mem_param_t mem_params[2];
280 reg_param_t reg_params[5];
281 armv4_5_algorithm_t armv4_5_info; /* for LPC2000 */
282 armv7m_algorithm_t armv7m_info; /* for LPC1700 */
283 uint32_t status_code;
284 uint32_t iap_entry_point = 0; /* to make compiler happier */
285
286 /* regrab previously allocated working_area, or allocate a new one */
287 if (!lpc2000_info->iap_working_area)
288 {
289 uint8_t jump_gate[8];
290
291 /* make sure we have a working area */
292 if (target_alloc_working_area(target, 180, &lpc2000_info->iap_working_area) != ERROR_OK)
293 {
294 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
295 return ERROR_FLASH_OPERATION_FAILED;
296 }
297
298 /* write IAP code to working area */
299 switch(lpc2000_info->variant)
300 {
301 case lpc1700:
302 target_buffer_set_u32(target, jump_gate, ARMV7M_T_BX(12));
303 target_buffer_set_u32(target, jump_gate + 4, ARMV7M_T_B(0xfffffe));
304 break;
305 case lpc2000_v1:
306 case lpc2000_v2:
307 target_buffer_set_u32(target, jump_gate, ARMV4_5_BX(12));
308 target_buffer_set_u32(target, jump_gate + 4, ARMV4_5_B(0xfffffe, 0));
309 break;
310 default:
311 LOG_ERROR("BUG: unknown bank->size encountered");
312 exit(-1);
313 }
314
315 if ((retval = target_write_memory(target, lpc2000_info->iap_working_area->address, 4, 2, jump_gate)) != ERROR_OK)
316 {
317 LOG_ERROR("Write memory at address 0x%8.8" PRIx32 " failed (check work_area definition)", lpc2000_info->iap_working_area->address);
318 return retval;
319 }
320 }
321
322 switch(lpc2000_info->variant)
323 {
324 case lpc1700:
325 armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
326 armv7m_info.core_mode = ARMV7M_MODE_ANY;
327 iap_entry_point = 0x1fff1ff1;
328 break;
329 case lpc2000_v1:
330 case lpc2000_v2:
331 armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
332 armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
333 armv4_5_info.core_state = ARMV4_5_STATE_ARM;
334 iap_entry_point = 0x7ffffff1;
335 break;
336 default:
337 LOG_ERROR("BUG: unknown lpc2000->variant encountered");
338 exit(-1);
339 }
340
341 /* command parameter table */
342 init_mem_param(&mem_params[0], lpc2000_info->iap_working_area->address + 8, 6 * 4, PARAM_OUT);
343 target_buffer_set_u32(target, mem_params[0].value, code);
344 target_buffer_set_u32(target, mem_params[0].value + 0x04, param_table[0]);
345 target_buffer_set_u32(target, mem_params[0].value + 0x08, param_table[1]);
346 target_buffer_set_u32(target, mem_params[0].value + 0x0c, param_table[2]);
347 target_buffer_set_u32(target, mem_params[0].value + 0x10, param_table[3]);
348 target_buffer_set_u32(target, mem_params[0].value + 0x14, param_table[4]);
349
350 init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
351 buf_set_u32(reg_params[0].value, 0, 32, lpc2000_info->iap_working_area->address + 0x08);
352
353 /* command result table */
354 init_mem_param(&mem_params[1], lpc2000_info->iap_working_area->address + 0x20, 5 * 4, PARAM_IN);
355
356 init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
357 buf_set_u32(reg_params[1].value, 0, 32, lpc2000_info->iap_working_area->address + 0x20);
358
359 /* IAP entry point */
360 init_reg_param(&reg_params[2], "r12", 32, PARAM_OUT);
361 buf_set_u32(reg_params[2].value, 0, 32, iap_entry_point);
362
363 switch(lpc2000_info->variant)
364 {
365 case lpc1700:
366 /* IAP stack */
367 init_reg_param(&reg_params[3], "sp", 32, PARAM_OUT);
368 buf_set_u32(reg_params[3].value, 0, 32, lpc2000_info->iap_working_area->address + 0xb4);
369
370 /* return address */
371 init_reg_param(&reg_params[4], "lr", 32, PARAM_OUT);
372 buf_set_u32(reg_params[4].value, 0, 32, (lpc2000_info->iap_working_area->address + 0x04) | 1); /* bit0 of LR = 1 to return in Thumb mode */
373
374 target_run_algorithm(target, 2, mem_params, 5, reg_params, lpc2000_info->iap_working_area->address, lpc2000_info->iap_working_area->address + 0x4, 10000, &armv7m_info);
375 break;
376 case lpc2000_v1:
377 case lpc2000_v2:
378 /* IAP stack */
379 init_reg_param(&reg_params[3], "r13_svc", 32, PARAM_OUT);
380 buf_set_u32(reg_params[3].value, 0, 32, lpc2000_info->iap_working_area->address + 0xb4);
381
382 /* return address */
383 init_reg_param(&reg_params[4], "lr_svc", 32, PARAM_OUT);
384 buf_set_u32(reg_params[4].value, 0, 32, lpc2000_info->iap_working_area->address + 0x04);
385
386 target_run_algorithm(target, 2, mem_params, 5, reg_params, lpc2000_info->iap_working_area->address, lpc2000_info->iap_working_area->address + 0x4, 10000, &armv4_5_info);
387 break;
388 default:
389 LOG_ERROR("BUG: unknown lpc2000->variant encountered");
390 exit(-1);
391 }
392
393
394 status_code = target_buffer_get_u32(target, mem_params[1].value);
395 result_table[0] = target_buffer_get_u32(target, mem_params[1].value + 0x04);
396 result_table[1] = target_buffer_get_u32(target, mem_params[1].value + 0x08);
397 result_table[2] = target_buffer_get_u32(target, mem_params[1].value + 0x0c);
398 result_table[3] = target_buffer_get_u32(target, mem_params[1].value + 0x10);
399
400 LOG_DEBUG("IAP command = %i (0x%8.8" PRIx32", 0x%8.8" PRIx32", 0x%8.8" PRIx32", 0x%8.8" PRIx32", 0x%8.8" PRIx32") completed with result = %8.8" PRIx32,
401 code, param_table[0], param_table[1], param_table[2], param_table[3], param_table[4], status_code);
402
403 destroy_mem_param(&mem_params[0]);
404 destroy_mem_param(&mem_params[1]);
405
406 destroy_reg_param(&reg_params[0]);
407 destroy_reg_param(&reg_params[1]);
408 destroy_reg_param(&reg_params[2]);
409 destroy_reg_param(&reg_params[3]);
410 destroy_reg_param(&reg_params[4]);
411
412 return status_code;
413 }
414
415 static int lpc2000_iap_blank_check(struct flash_bank_s *bank, int first, int last)
416 {
417 uint32_t param_table[5];
418 uint32_t result_table[4];
419 int status_code;
420 int i;
421
422 if ((first < 0) || (last >= bank->num_sectors))
423 return ERROR_FLASH_SECTOR_INVALID;
424
425 for (i = first; i <= last; i++)
426 {
427 /* check single sector */
428 param_table[0] = param_table[1] = i;
429 status_code = lpc2000_iap_call(bank, 53, param_table, result_table);
430
431 switch (status_code)
432 {
433 case ERROR_FLASH_OPERATION_FAILED:
434 return ERROR_FLASH_OPERATION_FAILED;
435 case LPC2000_CMD_SUCCESS:
436 bank->sectors[i].is_erased = 1;
437 break;
438 case LPC2000_SECTOR_NOT_BLANK:
439 bank->sectors[i].is_erased = 0;
440 break;
441 case LPC2000_INVALID_SECTOR:
442 bank->sectors[i].is_erased = 0;
443 break;
444 case LPC2000_BUSY:
445 return ERROR_FLASH_BUSY;
446 break;
447 default:
448 LOG_ERROR("BUG: unknown LPC2000 status code %i", status_code);
449 exit(-1);
450 }
451 }
452
453 return ERROR_OK;
454 }
455
456 /*
457 * flash bank lpc2000 <base> <size> 0 0 <target#> <lpc_variant> <cclk> [calc_checksum]
458 */
459 static int lpc2000_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
460 {
461 lpc2000_flash_bank_t *lpc2000_info;
462
463 if (argc < 8)
464 {
465 LOG_WARNING("incomplete flash_bank lpc2000 configuration");
466 return ERROR_FLASH_BANK_INVALID;
467 }
468
469 lpc2000_info = malloc(sizeof(lpc2000_flash_bank_t));
470 bank->driver_priv = lpc2000_info;
471
472 if (strcmp(args[6], "lpc2000_v1") == 0)
473 {
474 lpc2000_info->variant = lpc2000_v1;
475 lpc2000_info->cmd51_dst_boundary = 512;
476 lpc2000_info->cmd51_can_256b = 0;
477 lpc2000_info->cmd51_can_8192b = 1;
478 lpc2000_info->checksum_vector = 5;
479 }
480 else if (strcmp(args[6], "lpc2000_v2") == 0)
481 {
482 lpc2000_info->variant = lpc2000_v2;
483 lpc2000_info->cmd51_dst_boundary = 256;
484 lpc2000_info->cmd51_can_256b = 1;
485 lpc2000_info->cmd51_can_8192b = 0;
486 lpc2000_info->checksum_vector = 5;
487 }
488 else if (strcmp(args[6], "lpc1700") == 0)
489 {
490 lpc2000_info->variant = lpc1700;
491 lpc2000_info->cmd51_dst_boundary = 256;
492 lpc2000_info->cmd51_can_256b = 1;
493 lpc2000_info->cmd51_can_8192b = 0;
494 lpc2000_info->checksum_vector = 7;
495 }
496 else
497 {
498 LOG_ERROR("unknown LPC2000 variant: %s", args[6]);
499 free(lpc2000_info);
500 return ERROR_FLASH_BANK_INVALID;
501 }
502
503 lpc2000_info->iap_working_area = NULL;
504 lpc2000_info->cclk = strtoul(args[7], NULL, 0);
505 lpc2000_info->calc_checksum = 0;
506 lpc2000_build_sector_list(bank);
507
508 if (argc >= 9)
509 {
510 if (strcmp(args[8], "calc_checksum") == 0)
511 lpc2000_info->calc_checksum = 1;
512 }
513
514 return ERROR_OK;
515 }
516
517 static int lpc2000_erase(struct flash_bank_s *bank, int first, int last)
518 {
519 lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
520 uint32_t param_table[5];
521 uint32_t result_table[4];
522 int status_code;
523
524 if (bank->target->state != TARGET_HALTED)
525 {
526 LOG_ERROR("Target not halted");
527 return ERROR_TARGET_NOT_HALTED;
528 }
529
530 param_table[0] = first;
531 param_table[1] = last;
532 param_table[2] = lpc2000_info->cclk;
533
534 /* Prepare sectors */
535 status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
536 switch (status_code)
537 {
538 case ERROR_FLASH_OPERATION_FAILED:
539 return ERROR_FLASH_OPERATION_FAILED;
540 case LPC2000_CMD_SUCCESS:
541 break;
542 case LPC2000_INVALID_SECTOR:
543 return ERROR_FLASH_SECTOR_INVALID;
544 break;
545 default:
546 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code);
547 return ERROR_FLASH_OPERATION_FAILED;
548 }
549
550 /* Erase sectors */
551 status_code = lpc2000_iap_call(bank, 52, param_table, result_table);
552 switch (status_code)
553 {
554 case ERROR_FLASH_OPERATION_FAILED:
555 return ERROR_FLASH_OPERATION_FAILED;
556 case LPC2000_CMD_SUCCESS:
557 break;
558 case LPC2000_INVALID_SECTOR:
559 return ERROR_FLASH_SECTOR_INVALID;
560 break;
561 default:
562 LOG_WARNING("lpc2000 erase sectors returned %i", status_code);
563 return ERROR_FLASH_OPERATION_FAILED;
564 }
565
566 return ERROR_OK;
567 }
568
569 static int lpc2000_protect(struct flash_bank_s *bank, int set, int first, int last)
570 {
571 /* can't protect/unprotect on the lpc2000 */
572 return ERROR_OK;
573 }
574
575 static int lpc2000_write(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
576 {
577 lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
578 target_t *target = bank->target;
579 uint32_t dst_min_alignment;
580 uint32_t bytes_remaining = count;
581 uint32_t bytes_written = 0;
582 int first_sector = 0;
583 int last_sector = 0;
584 uint32_t param_table[5];
585 uint32_t result_table[4];
586 int status_code;
587 int i;
588 working_area_t *download_area;
589 int retval = ERROR_OK;
590
591 if (bank->target->state != TARGET_HALTED)
592 {
593 LOG_ERROR("Target not halted");
594 return ERROR_TARGET_NOT_HALTED;
595 }
596
597 if (offset + count > bank->size)
598 return ERROR_FLASH_DST_OUT_OF_BANK;
599
600 dst_min_alignment = lpc2000_info->cmd51_dst_boundary;
601
602 if (offset % dst_min_alignment)
603 {
604 LOG_WARNING("offset 0x%" PRIx32 " breaks required alignment 0x%" PRIx32, offset, dst_min_alignment);
605 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
606 }
607
608 for (i = 0; i < bank->num_sectors; i++)
609 {
610 if (offset >= bank->sectors[i].offset)
611 first_sector = i;
612 if (offset + CEIL(count, dst_min_alignment) * dst_min_alignment > bank->sectors[i].offset)
613 last_sector = i;
614 }
615
616 LOG_DEBUG("first_sector: %i, last_sector: %i", first_sector, last_sector);
617
618 /* check if exception vectors should be flashed */
619 if ((offset == 0) && (count >= 0x20) && lpc2000_info->calc_checksum)
620 {
621 uint32_t checksum = 0;
622 int i;
623 for (i = 0; i < 8; i++)
624 {
625 LOG_DEBUG("Vector 0x%2.2x: 0x%8.8" PRIx32, i * 4, buf_get_u32(buffer + (i * 4), 0, 32));
626 if (i != lpc2000_info->checksum_vector)
627 checksum += buf_get_u32(buffer + (i * 4), 0, 32);
628 }
629 checksum = 0 - checksum;
630 LOG_DEBUG("checksum: 0x%8.8" PRIx32, checksum);
631
632 uint32_t original_value = buf_get_u32(buffer + (lpc2000_info->checksum_vector * 4), 0, 32);
633 if (original_value != checksum)
634 {
635 LOG_WARNING("Verification will fail since checksum in image (0x%8.8" PRIx32 ") to be written to flash is different from calculated vector checksum (0x%8.8" PRIx32 ").",
636 original_value, checksum);
637 LOG_WARNING("To remove this warning modify build tools on developer PC to inject correct LPC vector checksum.");
638 }
639
640 buf_set_u32(buffer + (lpc2000_info->checksum_vector * 4), 0, 32, checksum);
641 }
642
643 /* allocate a working area */
644 if (target_alloc_working_area(target, lpc2000_info->cmd51_max_buffer, &download_area) != ERROR_OK)
645 {
646 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
647 return ERROR_FLASH_OPERATION_FAILED;
648 }
649
650 while (bytes_remaining > 0)
651 {
652 uint32_t thisrun_bytes;
653 if (bytes_remaining >= lpc2000_info->cmd51_max_buffer)
654 thisrun_bytes = lpc2000_info->cmd51_max_buffer;
655 else if (bytes_remaining >= 1024)
656 thisrun_bytes = 1024;
657 else if ((bytes_remaining >= 512) || (!lpc2000_info->cmd51_can_256b))
658 thisrun_bytes = 512;
659 else
660 thisrun_bytes = 256;
661
662 /* Prepare sectors */
663 param_table[0] = first_sector;
664 param_table[1] = last_sector;
665 status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
666 switch (status_code)
667 {
668 case ERROR_FLASH_OPERATION_FAILED:
669 retval = ERROR_FLASH_OPERATION_FAILED;
670 break;
671 case LPC2000_CMD_SUCCESS:
672 break;
673 case LPC2000_INVALID_SECTOR:
674 retval = ERROR_FLASH_SECTOR_INVALID;
675 break;
676 default:
677 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code);
678 retval = ERROR_FLASH_OPERATION_FAILED;
679 break;
680 }
681
682 /* Exit if error occured */
683 if (retval != ERROR_OK)
684 break;
685
686 if (bytes_remaining >= thisrun_bytes)
687 {
688 if ((retval = target_write_buffer(bank->target, download_area->address, thisrun_bytes, buffer + bytes_written)) != ERROR_OK)
689 {
690 retval = ERROR_FLASH_OPERATION_FAILED;
691 break;
692 }
693 }
694 else
695 {
696 uint8_t *last_buffer = malloc(thisrun_bytes);
697 memcpy(last_buffer, buffer + bytes_written, bytes_remaining);
698 memset(last_buffer + bytes_remaining, 0xff, thisrun_bytes - bytes_remaining);
699 target_write_buffer(bank->target, download_area->address, thisrun_bytes, last_buffer);
700 free(last_buffer);
701 }
702
703 LOG_DEBUG("writing 0x%" PRIx32 " bytes to address 0x%" PRIx32 , thisrun_bytes, bank->base + offset + bytes_written);
704
705 /* Write data */
706 param_table[0] = bank->base + offset + bytes_written;
707 param_table[1] = download_area->address;
708 param_table[2] = thisrun_bytes;
709 param_table[3] = lpc2000_info->cclk;
710 status_code = lpc2000_iap_call(bank, 51, param_table, result_table);
711 switch (status_code)
712 {
713 case ERROR_FLASH_OPERATION_FAILED:
714 retval = ERROR_FLASH_OPERATION_FAILED;
715 break;
716 case LPC2000_CMD_SUCCESS:
717 break;
718 case LPC2000_INVALID_SECTOR:
719 retval = ERROR_FLASH_SECTOR_INVALID;
720 break;
721 default:
722 LOG_WARNING("lpc2000 returned %i", status_code);
723 retval = ERROR_FLASH_OPERATION_FAILED;
724 break;
725 }
726
727 /* Exit if error occured */
728 if (retval != ERROR_OK)
729 break;
730
731 if (bytes_remaining > thisrun_bytes)
732 bytes_remaining -= thisrun_bytes;
733 else
734 bytes_remaining = 0;
735 bytes_written += thisrun_bytes;
736 }
737
738 target_free_working_area(target, download_area);
739
740 return retval;
741 }
742
743 static int lpc2000_probe(struct flash_bank_s *bank)
744 {
745 /* we can't probe on an lpc2000
746 * if this is an lpc2xxx, it has the configured flash
747 */
748 return ERROR_OK;
749 }
750
751 static int lpc2000_erase_check(struct flash_bank_s *bank)
752 {
753 if (bank->target->state != TARGET_HALTED)
754 {
755 LOG_ERROR("Target not halted");
756 return ERROR_TARGET_NOT_HALTED;
757 }
758
759 return lpc2000_iap_blank_check(bank, 0, bank->num_sectors - 1);
760 }
761
762 static int lpc2000_protect_check(struct flash_bank_s *bank)
763 {
764 /* sectors are always protected */
765 return ERROR_OK;
766 }
767
768 static int lpc2000_info(struct flash_bank_s *bank, char *buf, int buf_size)
769 {
770 lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
771
772 snprintf(buf, buf_size, "lpc2000 flash driver variant: %i, clk: %" PRIi32 "kHz" , lpc2000_info->variant, lpc2000_info->cclk);
773
774 return ERROR_OK;
775 }
776
777 static int lpc2000_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
778 {
779 flash_bank_t *bank;
780 uint32_t param_table[5];
781 uint32_t result_table[4];
782 int status_code;
783
784 if (argc < 1)
785 {
786 return ERROR_COMMAND_SYNTAX_ERROR;
787 }
788
789 bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
790 if (!bank)
791 {
792 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
793 return ERROR_OK;
794 }
795
796 if (bank->target->state != TARGET_HALTED)
797 {
798 LOG_ERROR("Target not halted");
799 return ERROR_TARGET_NOT_HALTED;
800 }
801
802 if ((status_code = lpc2000_iap_call(bank, 54, param_table, result_table)) != 0x0)
803 {
804 if (status_code == ERROR_FLASH_OPERATION_FAILED)
805 {
806 command_print(cmd_ctx, "no sufficient working area specified, can't access LPC2000 IAP interface");
807 return ERROR_OK;
808 }
809 command_print(cmd_ctx, "lpc2000 IAP returned status code %i", status_code);
810 }
811 else
812 {
813 command_print(cmd_ctx, "lpc2000 part id: 0x%8.8" PRIx32 , result_table[0]);
814 }
815
816 return ERROR_OK;
817 }