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ARM: rename ARMV4_5_STATE_* as ARM_STATE_*
[openocd.git] / src / flash / nor / lpc2000.c
blob2b1e67177ebe755e9a9188d754984884b0236ef1
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 "imp.h"
29 #include "lpc2000.h"
30 #include <helper/binarybuffer.h>
31 #include <target/algorithm.h>
32 #include <target/armv7m.h>
33
34
35 /* flash programming support for NXP LPC17xx and LPC2xxx devices
36 * currently supported devices:
37 * variant 1 (lpc2000_v1):
38 * - 2104 | 5 | 6
39 * - 2114 | 9
40 * - 2124 | 9
41 * - 2194
42 * - 2212 | 4
43 * - 2292 | 4
44 *
45 * variant 2 (lpc2000_v2):
46 * - 213x
47 * - 214x
48 * - 2101 | 2 | 3
49 * - 2364 | 6 | 8
50 * - 2378
51 *
52 * lpc1700:
53 * - 175x
54 * - 176x (tested with LPC1768)
55 */
56
57 static int lpc2000_build_sector_list(struct flash_bank *bank)
58 {
59 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
60 int i;
61 uint32_t offset = 0;
62
63 /* default to a 4096 write buffer */
64 lpc2000_info->cmd51_max_buffer = 4096;
65
66 if (lpc2000_info->variant == lpc2000_v1)
67 {
68 /* variant 1 has different layout for 128kb and 256kb flashes */
69 if (bank->size == 128 * 1024)
70 {
71 bank->num_sectors = 16;
72 bank->sectors = malloc(sizeof(struct flash_sector) * 16);
73 for (i = 0; i < 16; i++)
74 {
75 bank->sectors[i].offset = offset;
76 bank->sectors[i].size = 8 * 1024;
77 offset += bank->sectors[i].size;
78 bank->sectors[i].is_erased = -1;
79 bank->sectors[i].is_protected = 1;
80 }
81 }
82 else if (bank->size == 256 * 1024)
83 {
84 bank->num_sectors = 18;
85 bank->sectors = malloc(sizeof(struct flash_sector) * 18);
86
87 for (i = 0; i < 8; i++)
88 {
89 bank->sectors[i].offset = offset;
90 bank->sectors[i].size = 8 * 1024;
91 offset += bank->sectors[i].size;
92 bank->sectors[i].is_erased = -1;
93 bank->sectors[i].is_protected = 1;
94 }
95 for (i = 8; i < 10; i++)
96 {
97 bank->sectors[i].offset = offset;
98 bank->sectors[i].size = 64 * 1024;
99 offset += bank->sectors[i].size;
100 bank->sectors[i].is_erased = -1;
101 bank->sectors[i].is_protected = 1;
102 }
103 for (i = 10; i < 18; i++)
104 {
105 bank->sectors[i].offset = offset;
106 bank->sectors[i].size = 8 * 1024;
107 offset += bank->sectors[i].size;
108 bank->sectors[i].is_erased = -1;
109 bank->sectors[i].is_protected = 1;
110 }
111 }
112 else
113 {
114 LOG_ERROR("BUG: unknown bank->size encountered");
115 exit(-1);
116 }
117 }
118 else if (lpc2000_info->variant == lpc2000_v2)
119 {
120 /* variant 2 has a uniform layout, only number of sectors differs */
121 switch (bank->size)
122 {
123 case 4 * 1024:
124 lpc2000_info->cmd51_max_buffer = 1024;
125 bank->num_sectors = 1;
126 break;
127 case 8 * 1024:
128 lpc2000_info->cmd51_max_buffer = 1024;
129 bank->num_sectors = 2;
130 break;
131 case 16 * 1024:
132 bank->num_sectors = 4;
133 break;
134 case 32 * 1024:
135 bank->num_sectors = 8;
136 break;
137 case 64 * 1024:
138 bank->num_sectors = 9;
139 break;
140 case 128 * 1024:
141 bank->num_sectors = 11;
142 break;
143 case 256 * 1024:
144 bank->num_sectors = 15;
145 break;
146 case 512 * 1024:
147 case 500 * 1024:
148 bank->num_sectors = 27;
149 break;
150 default:
151 LOG_ERROR("BUG: unknown bank->size encountered");
152 exit(-1);
153 break;
154 }
155
156 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
157
158 for (i = 0; i < bank->num_sectors; i++)
159 {
160 if ((i >= 0) && (i < 8))
161 {
162 bank->sectors[i].offset = offset;
163 bank->sectors[i].size = 4 * 1024;
164 offset += bank->sectors[i].size;
165 bank->sectors[i].is_erased = -1;
166 bank->sectors[i].is_protected = 1;
167 }
168 if ((i >= 8) && (i < 22))
169 {
170 bank->sectors[i].offset = offset;
171 bank->sectors[i].size = 32 * 1024;
172 offset += bank->sectors[i].size;
173 bank->sectors[i].is_erased = -1;
174 bank->sectors[i].is_protected = 1;
175 }
176 if ((i >= 22) && (i < 27))
177 {
178 bank->sectors[i].offset = offset;
179 bank->sectors[i].size = 4 * 1024;
180 offset += bank->sectors[i].size;
181 bank->sectors[i].is_erased = -1;
182 bank->sectors[i].is_protected = 1;
183 }
184 }
185 }
186 else if (lpc2000_info->variant == lpc1700)
187 {
188 switch(bank->size)
189 {
190 case 32 * 1024:
191 bank->num_sectors = 8;
192 break;
193 case 64 * 1024:
194 bank->num_sectors = 16;
195 break;
196 case 128 * 1024:
197 bank->num_sectors = 18;
198 break;
199 case 256 * 1024:
200 bank->num_sectors = 22;
201 break;
202 case 512 * 1024:
203 bank->num_sectors = 30;
204 break;
205 default:
206 LOG_ERROR("BUG: unknown bank->size encountered");
207 exit(-1);
208 }
209
210 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
211
212 for(i = 0; i < bank->num_sectors; i++)
213 {
214 bank->sectors[i].offset = offset;
215 /* sectors 0-15 are 4kB-sized, 16 and above are 32kB-sized for LPC17xx devices */
216 bank->sectors[i].size = (i < 16)? 4 * 1024 : 32 * 1024;
217 offset += bank->sectors[i].size;
218 bank->sectors[i].is_erased = -1;
219 bank->sectors[i].is_protected = 1;
220 }
221 }
222 else
223 {
224 LOG_ERROR("BUG: unknown lpc2000_info->variant encountered");
225 exit(-1);
226 }
227
228 return ERROR_OK;
229 }
230
231 /* call LPC1700/LPC2000 IAP function
232 * uses 180 bytes working area
233 * 0x0 to 0x7: jump gate (BX to thumb state, b -2 to wait)
234 * 0x8 to 0x1f: command parameter table (1+5 words)
235 * 0x20 to 0x33: command result table (1+4 words)
236 * 0x34 to 0xb3: stack (only 128b needed)
237 */
238 static int lpc2000_iap_call(struct flash_bank *bank, int code, uint32_t param_table[5], uint32_t result_table[4])
239 {
240 int retval;
241 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
242 struct target *target = bank->target;
243 struct mem_param mem_params[2];
244 struct reg_param reg_params[5];
245 struct armv4_5_algorithm armv4_5_info; /* for LPC2000 */
246 struct armv7m_algorithm armv7m_info; /* for LPC1700 */
247 uint32_t status_code;
248 uint32_t iap_entry_point = 0; /* to make compiler happier */
249
250 /* regrab previously allocated working_area, or allocate a new one */
251 if (!lpc2000_info->iap_working_area)
252 {
253 uint8_t jump_gate[8];
254
255 /* make sure we have a working area */
256 if (target_alloc_working_area(target, 180, &lpc2000_info->iap_working_area) != ERROR_OK)
257 {
258 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
259 return ERROR_FLASH_OPERATION_FAILED;
260 }
261
262 /* write IAP code to working area */
263 switch(lpc2000_info->variant)
264 {
265 case lpc1700:
266 target_buffer_set_u32(target, jump_gate, ARMV7M_T_BX(12));
267 target_buffer_set_u32(target, jump_gate + 4, ARMV7M_T_B(0xfffffe));
268 break;
269 case lpc2000_v1:
270 case lpc2000_v2:
271 target_buffer_set_u32(target, jump_gate, ARMV4_5_BX(12));
272 target_buffer_set_u32(target, jump_gate + 4, ARMV4_5_B(0xfffffe, 0));
273 break;
274 default:
275 LOG_ERROR("BUG: unknown bank->size encountered");
276 exit(-1);
277 }
278
279 if ((retval = target_write_memory(target, lpc2000_info->iap_working_area->address, 4, 2, jump_gate)) != ERROR_OK)
280 {
281 LOG_ERROR("Write memory at address 0x%8.8" PRIx32 " failed (check work_area definition)", lpc2000_info->iap_working_area->address);
282 return retval;
283 }
284 }
285
286 switch(lpc2000_info->variant)
287 {
288 case lpc1700:
289 armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
290 armv7m_info.core_mode = ARMV7M_MODE_ANY;
291 iap_entry_point = 0x1fff1ff1;
292 break;
293 case lpc2000_v1:
294 case lpc2000_v2:
295 armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
296 armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
297 armv4_5_info.core_state = ARM_STATE_ARM;
298 iap_entry_point = 0x7ffffff1;
299 break;
300 default:
301 LOG_ERROR("BUG: unknown lpc2000->variant encountered");
302 exit(-1);
303 }
304
305 /* command parameter table */
306 init_mem_param(&mem_params[0], lpc2000_info->iap_working_area->address + 8, 6 * 4, PARAM_OUT);
307 target_buffer_set_u32(target, mem_params[0].value, code);
308 target_buffer_set_u32(target, mem_params[0].value + 0x04, param_table[0]);
309 target_buffer_set_u32(target, mem_params[0].value + 0x08, param_table[1]);
310 target_buffer_set_u32(target, mem_params[0].value + 0x0c, param_table[2]);
311 target_buffer_set_u32(target, mem_params[0].value + 0x10, param_table[3]);
312 target_buffer_set_u32(target, mem_params[0].value + 0x14, param_table[4]);
313
314 init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
315 buf_set_u32(reg_params[0].value, 0, 32, lpc2000_info->iap_working_area->address + 0x08);
316
317 /* command result table */
318 init_mem_param(&mem_params[1], lpc2000_info->iap_working_area->address + 0x20, 5 * 4, PARAM_IN);
319
320 init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
321 buf_set_u32(reg_params[1].value, 0, 32, lpc2000_info->iap_working_area->address + 0x20);
322
323 /* IAP entry point */
324 init_reg_param(&reg_params[2], "r12", 32, PARAM_OUT);
325 buf_set_u32(reg_params[2].value, 0, 32, iap_entry_point);
326
327 switch(lpc2000_info->variant)
328 {
329 case lpc1700:
330 /* IAP stack */
331 init_reg_param(&reg_params[3], "sp", 32, PARAM_OUT);
332 buf_set_u32(reg_params[3].value, 0, 32, lpc2000_info->iap_working_area->address + 0xb4);
333
334 /* return address */
335 init_reg_param(&reg_params[4], "lr", 32, PARAM_OUT);
336 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 */
337
338 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);
339 break;
340 case lpc2000_v1:
341 case lpc2000_v2:
342 /* IAP stack */
343 init_reg_param(&reg_params[3], "r13_svc", 32, PARAM_OUT);
344 buf_set_u32(reg_params[3].value, 0, 32, lpc2000_info->iap_working_area->address + 0xb4);
345
346 /* return address */
347 init_reg_param(&reg_params[4], "lr_svc", 32, PARAM_OUT);
348 buf_set_u32(reg_params[4].value, 0, 32, lpc2000_info->iap_working_area->address + 0x04);
349
350 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);
351 break;
352 default:
353 LOG_ERROR("BUG: unknown lpc2000->variant encountered");
354 exit(-1);
355 }
356
357
358 status_code = target_buffer_get_u32(target, mem_params[1].value);
359 result_table[0] = target_buffer_get_u32(target, mem_params[1].value + 0x04);
360 result_table[1] = target_buffer_get_u32(target, mem_params[1].value + 0x08);
361 result_table[2] = target_buffer_get_u32(target, mem_params[1].value + 0x0c);
362 result_table[3] = target_buffer_get_u32(target, mem_params[1].value + 0x10);
363
364 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,
365 code, param_table[0], param_table[1], param_table[2], param_table[3], param_table[4], status_code);
366
367 destroy_mem_param(&mem_params[0]);
368 destroy_mem_param(&mem_params[1]);
369
370 destroy_reg_param(&reg_params[0]);
371 destroy_reg_param(&reg_params[1]);
372 destroy_reg_param(&reg_params[2]);
373 destroy_reg_param(&reg_params[3]);
374 destroy_reg_param(&reg_params[4]);
375
376 return status_code;
377 }
378
379 static int lpc2000_iap_blank_check(struct flash_bank *bank, int first, int last)
380 {
381 uint32_t param_table[5];
382 uint32_t result_table[4];
383 int status_code;
384 int i;
385
386 if ((first < 0) || (last >= bank->num_sectors))
387 return ERROR_FLASH_SECTOR_INVALID;
388
389 for (i = first; i <= last; i++)
390 {
391 /* check single sector */
392 param_table[0] = param_table[1] = i;
393 status_code = lpc2000_iap_call(bank, 53, param_table, result_table);
394
395 switch (status_code)
396 {
397 case ERROR_FLASH_OPERATION_FAILED:
398 return ERROR_FLASH_OPERATION_FAILED;
399 case LPC2000_CMD_SUCCESS:
400 bank->sectors[i].is_erased = 1;
401 break;
402 case LPC2000_SECTOR_NOT_BLANK:
403 bank->sectors[i].is_erased = 0;
404 break;
405 case LPC2000_INVALID_SECTOR:
406 bank->sectors[i].is_erased = 0;
407 break;
408 case LPC2000_BUSY:
409 return ERROR_FLASH_BUSY;
410 break;
411 default:
412 LOG_ERROR("BUG: unknown LPC2000 status code %i", status_code);
413 exit(-1);
414 }
415 }
416
417 return ERROR_OK;
418 }
419
420 /*
421 * flash bank lpc2000 <base> <size> 0 0 <target#> <lpc_variant> <cclk> [calc_checksum]
422 */
423 FLASH_BANK_COMMAND_HANDLER(lpc2000_flash_bank_command)
424 {
425 struct lpc2000_flash_bank *lpc2000_info;
426
427 if (CMD_ARGC < 8)
428 {
429 LOG_WARNING("incomplete flash_bank lpc2000 configuration");
430 return ERROR_FLASH_BANK_INVALID;
431 }
432
433 lpc2000_info = malloc(sizeof(struct lpc2000_flash_bank));
434 bank->driver_priv = lpc2000_info;
435
436 if (strcmp(CMD_ARGV[6], "lpc2000_v1") == 0)
437 {
438 lpc2000_info->variant = lpc2000_v1;
439 lpc2000_info->cmd51_dst_boundary = 512;
440 lpc2000_info->cmd51_can_256b = 0;
441 lpc2000_info->cmd51_can_8192b = 1;
442 lpc2000_info->checksum_vector = 5;
443 }
444 else if (strcmp(CMD_ARGV[6], "lpc2000_v2") == 0)
445 {
446 lpc2000_info->variant = lpc2000_v2;
447 lpc2000_info->cmd51_dst_boundary = 256;
448 lpc2000_info->cmd51_can_256b = 1;
449 lpc2000_info->cmd51_can_8192b = 0;
450 lpc2000_info->checksum_vector = 5;
451 }
452 else if (strcmp(CMD_ARGV[6], "lpc1700") == 0)
453 {
454 lpc2000_info->variant = lpc1700;
455 lpc2000_info->cmd51_dst_boundary = 256;
456 lpc2000_info->cmd51_can_256b = 1;
457 lpc2000_info->cmd51_can_8192b = 0;
458 lpc2000_info->checksum_vector = 7;
459 }
460 else
461 {
462 LOG_ERROR("unknown LPC2000 variant: %s", CMD_ARGV[6]);
463 free(lpc2000_info);
464 return ERROR_FLASH_BANK_INVALID;
465 }
466
467 lpc2000_info->iap_working_area = NULL;
468 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[7], lpc2000_info->cclk);
469 lpc2000_info->calc_checksum = 0;
470 lpc2000_build_sector_list(bank);
471
472 if (CMD_ARGC >= 9)
473 {
474 if (strcmp(CMD_ARGV[8], "calc_checksum") == 0)
475 lpc2000_info->calc_checksum = 1;
476 }
477
478 return ERROR_OK;
479 }
480
481 static int lpc2000_erase(struct flash_bank *bank, int first, int last)
482 {
483 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
484 uint32_t param_table[5];
485 uint32_t result_table[4];
486 int status_code;
487
488 if (bank->target->state != TARGET_HALTED)
489 {
490 LOG_ERROR("Target not halted");
491 return ERROR_TARGET_NOT_HALTED;
492 }
493
494 param_table[0] = first;
495 param_table[1] = last;
496 param_table[2] = lpc2000_info->cclk;
497
498 /* Prepare sectors */
499 status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
500 switch (status_code)
501 {
502 case ERROR_FLASH_OPERATION_FAILED:
503 return ERROR_FLASH_OPERATION_FAILED;
504 case LPC2000_CMD_SUCCESS:
505 break;
506 case LPC2000_INVALID_SECTOR:
507 return ERROR_FLASH_SECTOR_INVALID;
508 break;
509 default:
510 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code);
511 return ERROR_FLASH_OPERATION_FAILED;
512 }
513
514 /* Erase sectors */
515 status_code = lpc2000_iap_call(bank, 52, param_table, result_table);
516 switch (status_code)
517 {
518 case ERROR_FLASH_OPERATION_FAILED:
519 return ERROR_FLASH_OPERATION_FAILED;
520 case LPC2000_CMD_SUCCESS:
521 break;
522 case LPC2000_INVALID_SECTOR:
523 return ERROR_FLASH_SECTOR_INVALID;
524 break;
525 default:
526 LOG_WARNING("lpc2000 erase sectors returned %i", status_code);
527 return ERROR_FLASH_OPERATION_FAILED;
528 }
529
530 return ERROR_OK;
531 }
532
533 static int lpc2000_protect(struct flash_bank *bank, int set, int first, int last)
534 {
535 /* can't protect/unprotect on the lpc2000 */
536 return ERROR_OK;
537 }
538
539 static int lpc2000_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
540 {
541 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
542 struct target *target = bank->target;
543 uint32_t dst_min_alignment;
544 uint32_t bytes_remaining = count;
545 uint32_t bytes_written = 0;
546 int first_sector = 0;
547 int last_sector = 0;
548 uint32_t param_table[5];
549 uint32_t result_table[4];
550 int status_code;
551 int i;
552 struct working_area *download_area;
553 int retval = ERROR_OK;
554
555 if (bank->target->state != TARGET_HALTED)
556 {
557 LOG_ERROR("Target not halted");
558 return ERROR_TARGET_NOT_HALTED;
559 }
560
561 if (offset + count > bank->size)
562 return ERROR_FLASH_DST_OUT_OF_BANK;
563
564 dst_min_alignment = lpc2000_info->cmd51_dst_boundary;
565
566 if (offset % dst_min_alignment)
567 {
568 LOG_WARNING("offset 0x%" PRIx32 " breaks required alignment 0x%" PRIx32, offset, dst_min_alignment);
569 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
570 }
571
572 for (i = 0; i < bank->num_sectors; i++)
573 {
574 if (offset >= bank->sectors[i].offset)
575 first_sector = i;
576 if (offset + DIV_ROUND_UP(count, dst_min_alignment) * dst_min_alignment > bank->sectors[i].offset)
577 last_sector = i;
578 }
579
580 LOG_DEBUG("first_sector: %i, last_sector: %i", first_sector, last_sector);
581
582 /* check if exception vectors should be flashed */
583 if ((offset == 0) && (count >= 0x20) && lpc2000_info->calc_checksum)
584 {
585 uint32_t checksum = 0;
586 int i;
587 for (i = 0; i < 8; i++)
588 {
589 LOG_DEBUG("Vector 0x%2.2x: 0x%8.8" PRIx32, i * 4, buf_get_u32(buffer + (i * 4), 0, 32));
590 if (i != lpc2000_info->checksum_vector)
591 checksum += buf_get_u32(buffer + (i * 4), 0, 32);
592 }
593 checksum = 0 - checksum;
594 LOG_DEBUG("checksum: 0x%8.8" PRIx32, checksum);
595
596 uint32_t original_value = buf_get_u32(buffer + (lpc2000_info->checksum_vector * 4), 0, 32);
597 if (original_value != checksum)
598 {
599 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 ").",
600 original_value, checksum);
601 LOG_WARNING("To remove this warning modify build tools on developer PC to inject correct LPC vector checksum.");
602 }
603
604 buf_set_u32(buffer + (lpc2000_info->checksum_vector * 4), 0, 32, checksum);
605 }
606
607 /* allocate a working area */
608 if (target_alloc_working_area(target, lpc2000_info->cmd51_max_buffer, &download_area) != ERROR_OK)
609 {
610 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
611 return ERROR_FLASH_OPERATION_FAILED;
612 }
613
614 while (bytes_remaining > 0)
615 {
616 uint32_t thisrun_bytes;
617 if (bytes_remaining >= lpc2000_info->cmd51_max_buffer)
618 thisrun_bytes = lpc2000_info->cmd51_max_buffer;
619 else if (bytes_remaining >= 1024)
620 thisrun_bytes = 1024;
621 else if ((bytes_remaining >= 512) || (!lpc2000_info->cmd51_can_256b))
622 thisrun_bytes = 512;
623 else
624 thisrun_bytes = 256;
625
626 /* Prepare sectors */
627 param_table[0] = first_sector;
628 param_table[1] = last_sector;
629 status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
630 switch (status_code)
631 {
632 case ERROR_FLASH_OPERATION_FAILED:
633 retval = ERROR_FLASH_OPERATION_FAILED;
634 break;
635 case LPC2000_CMD_SUCCESS:
636 break;
637 case LPC2000_INVALID_SECTOR:
638 retval = ERROR_FLASH_SECTOR_INVALID;
639 break;
640 default:
641 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code);
642 retval = ERROR_FLASH_OPERATION_FAILED;
643 break;
644 }
645
646 /* Exit if error occured */
647 if (retval != ERROR_OK)
648 break;
649
650 if (bytes_remaining >= thisrun_bytes)
651 {
652 if ((retval = target_write_buffer(bank->target, download_area->address, thisrun_bytes, buffer + bytes_written)) != ERROR_OK)
653 {
654 retval = ERROR_FLASH_OPERATION_FAILED;
655 break;
656 }
657 }
658 else
659 {
660 uint8_t *last_buffer = malloc(thisrun_bytes);
661 memcpy(last_buffer, buffer + bytes_written, bytes_remaining);
662 memset(last_buffer + bytes_remaining, 0xff, thisrun_bytes - bytes_remaining);
663 target_write_buffer(bank->target, download_area->address, thisrun_bytes, last_buffer);
664 free(last_buffer);
665 }
666
667 LOG_DEBUG("writing 0x%" PRIx32 " bytes to address 0x%" PRIx32 , thisrun_bytes, bank->base + offset + bytes_written);
668
669 /* Write data */
670 param_table[0] = bank->base + offset + bytes_written;
671 param_table[1] = download_area->address;
672 param_table[2] = thisrun_bytes;
673 param_table[3] = lpc2000_info->cclk;
674 status_code = lpc2000_iap_call(bank, 51, param_table, result_table);
675 switch (status_code)
676 {
677 case ERROR_FLASH_OPERATION_FAILED:
678 retval = ERROR_FLASH_OPERATION_FAILED;
679 break;
680 case LPC2000_CMD_SUCCESS:
681 break;
682 case LPC2000_INVALID_SECTOR:
683 retval = ERROR_FLASH_SECTOR_INVALID;
684 break;
685 default:
686 LOG_WARNING("lpc2000 returned %i", status_code);
687 retval = ERROR_FLASH_OPERATION_FAILED;
688 break;
689 }
690
691 /* Exit if error occured */
692 if (retval != ERROR_OK)
693 break;
694
695 if (bytes_remaining > thisrun_bytes)
696 bytes_remaining -= thisrun_bytes;
697 else
698 bytes_remaining = 0;
699 bytes_written += thisrun_bytes;
700 }
701
702 target_free_working_area(target, download_area);
703
704 return retval;
705 }
706
707 static int lpc2000_probe(struct flash_bank *bank)
708 {
709 /* we can't probe on an lpc2000
710 * if this is an lpc2xxx, it has the configured flash
711 */
712 return ERROR_OK;
713 }
714
715 static int lpc2000_erase_check(struct flash_bank *bank)
716 {
717 if (bank->target->state != TARGET_HALTED)
718 {
719 LOG_ERROR("Target not halted");
720 return ERROR_TARGET_NOT_HALTED;
721 }
722
723 return lpc2000_iap_blank_check(bank, 0, bank->num_sectors - 1);
724 }
725
726 static int lpc2000_protect_check(struct flash_bank *bank)
727 {
728 /* sectors are always protected */
729 return ERROR_OK;
730 }
731
732 static int lpc2000_info(struct flash_bank *bank, char *buf, int buf_size)
733 {
734 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
735
736 snprintf(buf, buf_size, "lpc2000 flash driver variant: %i, clk: %" PRIi32 "kHz" , lpc2000_info->variant, lpc2000_info->cclk);
737
738 return ERROR_OK;
739 }
740
741 COMMAND_HANDLER(lpc2000_handle_part_id_command)
742 {
743 uint32_t param_table[5];
744 uint32_t result_table[4];
745 int status_code;
746
747 if (CMD_ARGC < 1)
748 {
749 return ERROR_COMMAND_SYNTAX_ERROR;
750 }
751
752 struct flash_bank *bank;
753 int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
754 if (ERROR_OK != retval)
755 return retval;
756
757 if (bank->target->state != TARGET_HALTED)
758 {
759 LOG_ERROR("Target not halted");
760 return ERROR_TARGET_NOT_HALTED;
761 }
762
763 if ((status_code = lpc2000_iap_call(bank, 54, param_table, result_table)) != 0x0)
764 {
765 if (status_code == ERROR_FLASH_OPERATION_FAILED)
766 {
767 command_print(CMD_CTX, "no sufficient working area specified, can't access LPC2000 IAP interface");
768 return ERROR_OK;
769 }
770 command_print(CMD_CTX, "lpc2000 IAP returned status code %i", status_code);
771 }
772 else
773 {
774 command_print(CMD_CTX, "lpc2000 part id: 0x%8.8" PRIx32 , result_table[0]);
775 }
776
777 return ERROR_OK;
778 }
779
780 static const struct command_registration lpc2000_exec_command_handlers[] = {
781 {
782 .name = "part_id",
783 .handler = &lpc2000_handle_part_id_command,
784 .mode = COMMAND_EXEC,
785 .help = "print part id of lpc2000 flash bank <num>",
786 },
787 COMMAND_REGISTRATION_DONE
788 };
789 static const struct command_registration lpc2000_command_handlers[] = {
790 {
791 .name = "lpc2000",
792 .mode = COMMAND_ANY,
793 .help = "lpc2000 flash command group",
794 .chain = lpc2000_exec_command_handlers,
795 },
796 COMMAND_REGISTRATION_DONE
797 };
798
799 struct flash_driver lpc2000_flash = {
800 .name = "lpc2000",
801 .commands = lpc2000_command_handlers,
802 .flash_bank_command = &lpc2000_flash_bank_command,
803 .erase = &lpc2000_erase,
804 .protect = &lpc2000_protect,
805 .write = &lpc2000_write,
806 .probe = &lpc2000_probe,
807 .auto_probe = &lpc2000_probe,
808 .erase_check = &lpc2000_erase_check,
809 .protect_check = &lpc2000_protect_check,
810 .info = &lpc2000_info,
811 };
812
813
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