154248caf6aa98404a23018decde1b6592babd58
[openocd.git] / src / flash / nor / lpc2000.c
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/arm_opcodes.h>
33 #include <target/armv7m.h>
34
35
36 /**
37 * @file
38 * flash programming support for NXP LPC17xx and LPC2xxx devices.
39 *
40 * @todo Provide a way to update CCLK after declaring the flash bank.
41 * The value which is correct after chip reset will rarely still work
42 * right after the clocks switch to use the PLL (e.g. 4MHz --> 100 MHz).
43 */
44 /*
45 * currently supported devices:
46 * variant 1 (lpc2000_v1):
47 * - 2104 | 5 | 6
48 * - 2114 | 9
49 * - 2124 | 9
50 * - 2194
51 * - 2212 | 4
52 * - 2292 | 4
53 *
54 * variant 2 (lpc2000_v2):
55 * - 213x
56 * - 214x
57 * - 2101 | 2 | 3
58 * - 2364 | 6 | 8
59 * - 2378
60 *
61 * lpc1700:
62 * - 175x
63 * - 176x (tested with LPC1768)
64 */
65
66 static int lpc2000_build_sector_list(struct flash_bank *bank)
67 {
68 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
69 int i;
70 uint32_t offset = 0;
71
72 /* default to a 4096 write buffer */
73 lpc2000_info->cmd51_max_buffer = 4096;
74
75 if (lpc2000_info->variant == lpc2000_v1)
76 {
77 /* variant 1 has different layout for 128kb and 256kb flashes */
78 if (bank->size == 128 * 1024)
79 {
80 bank->num_sectors = 16;
81 bank->sectors = malloc(sizeof(struct flash_sector) * 16);
82 for (i = 0; i < 16; i++)
83 {
84 bank->sectors[i].offset = offset;
85 bank->sectors[i].size = 8 * 1024;
86 offset += bank->sectors[i].size;
87 bank->sectors[i].is_erased = -1;
88 bank->sectors[i].is_protected = 1;
89 }
90 }
91 else if (bank->size == 256 * 1024)
92 {
93 bank->num_sectors = 18;
94 bank->sectors = malloc(sizeof(struct flash_sector) * 18);
95
96 for (i = 0; i < 8; i++)
97 {
98 bank->sectors[i].offset = offset;
99 bank->sectors[i].size = 8 * 1024;
100 offset += bank->sectors[i].size;
101 bank->sectors[i].is_erased = -1;
102 bank->sectors[i].is_protected = 1;
103 }
104 for (i = 8; i < 10; i++)
105 {
106 bank->sectors[i].offset = offset;
107 bank->sectors[i].size = 64 * 1024;
108 offset += bank->sectors[i].size;
109 bank->sectors[i].is_erased = -1;
110 bank->sectors[i].is_protected = 1;
111 }
112 for (i = 10; i < 18; i++)
113 {
114 bank->sectors[i].offset = offset;
115 bank->sectors[i].size = 8 * 1024;
116 offset += bank->sectors[i].size;
117 bank->sectors[i].is_erased = -1;
118 bank->sectors[i].is_protected = 1;
119 }
120 }
121 else
122 {
123 LOG_ERROR("BUG: unknown bank->size encountered");
124 exit(-1);
125 }
126 }
127 else if (lpc2000_info->variant == lpc2000_v2)
128 {
129 /* variant 2 has a uniform layout, only number of sectors differs */
130 switch (bank->size)
131 {
132 case 4 * 1024:
133 lpc2000_info->cmd51_max_buffer = 1024;
134 bank->num_sectors = 1;
135 break;
136 case 8 * 1024:
137 lpc2000_info->cmd51_max_buffer = 1024;
138 bank->num_sectors = 2;
139 break;
140 case 16 * 1024:
141 bank->num_sectors = 4;
142 break;
143 case 32 * 1024:
144 bank->num_sectors = 8;
145 break;
146 case 64 * 1024:
147 bank->num_sectors = 9;
148 break;
149 case 128 * 1024:
150 bank->num_sectors = 11;
151 break;
152 case 256 * 1024:
153 bank->num_sectors = 15;
154 break;
155 case 512 * 1024:
156 case 500 * 1024:
157 bank->num_sectors = 27;
158 break;
159 default:
160 LOG_ERROR("BUG: unknown bank->size encountered");
161 exit(-1);
162 break;
163 }
164
165 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
166
167 for (i = 0; i < bank->num_sectors; i++)
168 {
169 if ((i >= 0) && (i < 8))
170 {
171 bank->sectors[i].offset = offset;
172 bank->sectors[i].size = 4 * 1024;
173 offset += bank->sectors[i].size;
174 bank->sectors[i].is_erased = -1;
175 bank->sectors[i].is_protected = 1;
176 }
177 if ((i >= 8) && (i < 22))
178 {
179 bank->sectors[i].offset = offset;
180 bank->sectors[i].size = 32 * 1024;
181 offset += bank->sectors[i].size;
182 bank->sectors[i].is_erased = -1;
183 bank->sectors[i].is_protected = 1;
184 }
185 if ((i >= 22) && (i < 27))
186 {
187 bank->sectors[i].offset = offset;
188 bank->sectors[i].size = 4 * 1024;
189 offset += bank->sectors[i].size;
190 bank->sectors[i].is_erased = -1;
191 bank->sectors[i].is_protected = 1;
192 }
193 }
194 }
195 else if (lpc2000_info->variant == lpc1700)
196 {
197 switch(bank->size)
198 {
199 case 32 * 1024:
200 bank->num_sectors = 8;
201 break;
202 case 64 * 1024:
203 bank->num_sectors = 16;
204 break;
205 case 128 * 1024:
206 bank->num_sectors = 18;
207 break;
208 case 256 * 1024:
209 bank->num_sectors = 22;
210 break;
211 case 512 * 1024:
212 bank->num_sectors = 30;
213 break;
214 default:
215 LOG_ERROR("BUG: unknown bank->size encountered");
216 exit(-1);
217 }
218
219 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
220
221 for(i = 0; i < bank->num_sectors; i++)
222 {
223 bank->sectors[i].offset = offset;
224 /* sectors 0-15 are 4kB-sized, 16 and above are 32kB-sized for LPC17xx devices */
225 bank->sectors[i].size = (i < 16)? 4 * 1024 : 32 * 1024;
226 offset += bank->sectors[i].size;
227 bank->sectors[i].is_erased = -1;
228 bank->sectors[i].is_protected = 1;
229 }
230 }
231 else
232 {
233 LOG_ERROR("BUG: unknown lpc2000_info->variant encountered");
234 exit(-1);
235 }
236
237 return ERROR_OK;
238 }
239
240 /* call LPC1700/LPC2000 IAP function
241 * uses 180 bytes working area
242 * 0x0 to 0x7: jump gate (BX to thumb state, b -2 to wait)
243 * 0x8 to 0x1f: command parameter table (1+5 words)
244 * 0x20 to 0x33: command result table (1+4 words)
245 * 0x34 to 0xb3: stack (only 128b needed)
246 */
247 static int lpc2000_iap_call(struct flash_bank *bank, int code, uint32_t param_table[5], uint32_t result_table[4])
248 {
249 int retval;
250 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
251 struct target *target = bank->target;
252 struct mem_param mem_params[2];
253 struct reg_param reg_params[5];
254 struct arm_algorithm armv4_5_info; /* for LPC2000 */
255 struct armv7m_algorithm armv7m_info; /* for LPC1700 */
256 uint32_t status_code;
257 uint32_t iap_entry_point = 0; /* to make compiler happier */
258
259 /* regrab previously allocated working_area, or allocate a new one */
260 if (!lpc2000_info->iap_working_area)
261 {
262 uint8_t jump_gate[8];
263
264 /* make sure we have a working area */
265 if (target_alloc_working_area(target, 180, &lpc2000_info->iap_working_area) != ERROR_OK)
266 {
267 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
268 return ERROR_FLASH_OPERATION_FAILED;
269 }
270
271 /* write IAP code to working area */
272 switch(lpc2000_info->variant)
273 {
274 case lpc1700:
275 target_buffer_set_u32(target, jump_gate,
276 ARMV4_5_T_BX(12));
277 target_buffer_set_u32(target, jump_gate + 4,
278 ARMV5_T_BKPT(0));
279 break;
280 case lpc2000_v1:
281 case lpc2000_v2:
282 target_buffer_set_u32(target, jump_gate, ARMV4_5_BX(12));
283 target_buffer_set_u32(target, jump_gate + 4, ARMV4_5_B(0xfffffe, 0));
284 break;
285 default:
286 LOG_ERROR("BUG: unknown bank->size encountered");
287 exit(-1);
288 }
289
290 if ((retval = target_write_memory(target, lpc2000_info->iap_working_area->address, 4, 2, jump_gate)) != ERROR_OK)
291 {
292 LOG_ERROR("Write memory at address 0x%8.8" PRIx32 " failed (check work_area definition)", lpc2000_info->iap_working_area->address);
293 return retval;
294 }
295 }
296
297 switch(lpc2000_info->variant)
298 {
299 case lpc1700:
300 armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
301 armv7m_info.core_mode = ARMV7M_MODE_ANY;
302 iap_entry_point = 0x1fff1ff1;
303 break;
304 case lpc2000_v1:
305 case lpc2000_v2:
306 armv4_5_info.common_magic = ARM_COMMON_MAGIC;
307 armv4_5_info.core_mode = ARM_MODE_SVC;
308 armv4_5_info.core_state = ARM_STATE_ARM;
309 iap_entry_point = 0x7ffffff1;
310 break;
311 default:
312 LOG_ERROR("BUG: unknown lpc2000->variant encountered");
313 exit(-1);
314 }
315
316 /* command parameter table */
317 init_mem_param(&mem_params[0], lpc2000_info->iap_working_area->address + 8, 6 * 4, PARAM_OUT);
318 target_buffer_set_u32(target, mem_params[0].value, code);
319 target_buffer_set_u32(target, mem_params[0].value + 0x04, param_table[0]);
320 target_buffer_set_u32(target, mem_params[0].value + 0x08, param_table[1]);
321 target_buffer_set_u32(target, mem_params[0].value + 0x0c, param_table[2]);
322 target_buffer_set_u32(target, mem_params[0].value + 0x10, param_table[3]);
323 target_buffer_set_u32(target, mem_params[0].value + 0x14, param_table[4]);
324
325 init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
326 buf_set_u32(reg_params[0].value, 0, 32, lpc2000_info->iap_working_area->address + 0x08);
327
328 /* command result table */
329 init_mem_param(&mem_params[1], lpc2000_info->iap_working_area->address + 0x20, 5 * 4, PARAM_IN);
330
331 init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
332 buf_set_u32(reg_params[1].value, 0, 32, lpc2000_info->iap_working_area->address + 0x20);
333
334 /* IAP entry point */
335 init_reg_param(&reg_params[2], "r12", 32, PARAM_OUT);
336 buf_set_u32(reg_params[2].value, 0, 32, iap_entry_point);
337
338 switch(lpc2000_info->variant)
339 {
340 case lpc1700:
341 /* IAP stack */
342 init_reg_param(&reg_params[3], "sp", 32, PARAM_OUT);
343 buf_set_u32(reg_params[3].value, 0, 32, lpc2000_info->iap_working_area->address + 0xb4);
344
345 /* return address */
346 init_reg_param(&reg_params[4], "lr", 32, PARAM_OUT);
347 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 */
348
349 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);
350 break;
351 case lpc2000_v1:
352 case lpc2000_v2:
353 /* IAP stack */
354 init_reg_param(&reg_params[3], "sp_svc", 32, PARAM_OUT);
355 buf_set_u32(reg_params[3].value, 0, 32, lpc2000_info->iap_working_area->address + 0xb4);
356
357 /* return address */
358 init_reg_param(&reg_params[4], "lr_svc", 32, PARAM_OUT);
359 buf_set_u32(reg_params[4].value, 0, 32, lpc2000_info->iap_working_area->address + 0x04);
360
361 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);
362 break;
363 default:
364 LOG_ERROR("BUG: unknown lpc2000->variant encountered");
365 exit(-1);
366 }
367
368
369 status_code = target_buffer_get_u32(target, mem_params[1].value);
370 result_table[0] = target_buffer_get_u32(target, mem_params[1].value + 0x04);
371 result_table[1] = target_buffer_get_u32(target, mem_params[1].value + 0x08);
372 result_table[2] = target_buffer_get_u32(target, mem_params[1].value + 0x0c);
373 result_table[3] = target_buffer_get_u32(target, mem_params[1].value + 0x10);
374
375 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,
376 code, param_table[0], param_table[1], param_table[2], param_table[3], param_table[4], status_code);
377
378 destroy_mem_param(&mem_params[0]);
379 destroy_mem_param(&mem_params[1]);
380
381 destroy_reg_param(&reg_params[0]);
382 destroy_reg_param(&reg_params[1]);
383 destroy_reg_param(&reg_params[2]);
384 destroy_reg_param(&reg_params[3]);
385 destroy_reg_param(&reg_params[4]);
386
387 return status_code;
388 }
389
390 static int lpc2000_iap_blank_check(struct flash_bank *bank, int first, int last)
391 {
392 uint32_t param_table[5];
393 uint32_t result_table[4];
394 int status_code;
395 int i;
396
397 if ((first < 0) || (last >= bank->num_sectors))
398 return ERROR_FLASH_SECTOR_INVALID;
399
400 for (i = first; i <= last; i++)
401 {
402 /* check single sector */
403 param_table[0] = param_table[1] = i;
404 status_code = lpc2000_iap_call(bank, 53, param_table, result_table);
405
406 switch (status_code)
407 {
408 case ERROR_FLASH_OPERATION_FAILED:
409 return ERROR_FLASH_OPERATION_FAILED;
410 case LPC2000_CMD_SUCCESS:
411 bank->sectors[i].is_erased = 1;
412 break;
413 case LPC2000_SECTOR_NOT_BLANK:
414 bank->sectors[i].is_erased = 0;
415 break;
416 case LPC2000_INVALID_SECTOR:
417 bank->sectors[i].is_erased = 0;
418 break;
419 case LPC2000_BUSY:
420 return ERROR_FLASH_BUSY;
421 break;
422 default:
423 LOG_ERROR("BUG: unknown LPC2000 status code %i", status_code);
424 exit(-1);
425 }
426 }
427
428 return ERROR_OK;
429 }
430
431 /*
432 * flash bank lpc2000 <base> <size> 0 0 <target#> <lpc_variant> <cclk> [calc_checksum]
433 */
434 FLASH_BANK_COMMAND_HANDLER(lpc2000_flash_bank_command)
435 {
436 struct lpc2000_flash_bank *lpc2000_info;
437
438 if (CMD_ARGC < 8)
439 {
440 LOG_WARNING("incomplete flash_bank lpc2000 configuration");
441 return ERROR_FLASH_BANK_INVALID;
442 }
443
444 lpc2000_info = malloc(sizeof(struct lpc2000_flash_bank));
445 bank->driver_priv = lpc2000_info;
446
447 if (strcmp(CMD_ARGV[6], "lpc2000_v1") == 0)
448 {
449 lpc2000_info->variant = lpc2000_v1;
450 lpc2000_info->cmd51_dst_boundary = 512;
451 lpc2000_info->cmd51_can_256b = 0;
452 lpc2000_info->cmd51_can_8192b = 1;
453 lpc2000_info->checksum_vector = 5;
454 }
455 else if (strcmp(CMD_ARGV[6], "lpc2000_v2") == 0)
456 {
457 lpc2000_info->variant = lpc2000_v2;
458 lpc2000_info->cmd51_dst_boundary = 256;
459 lpc2000_info->cmd51_can_256b = 1;
460 lpc2000_info->cmd51_can_8192b = 0;
461 lpc2000_info->checksum_vector = 5;
462 }
463 else if (strcmp(CMD_ARGV[6], "lpc1700") == 0)
464 {
465 lpc2000_info->variant = lpc1700;
466 lpc2000_info->cmd51_dst_boundary = 256;
467 lpc2000_info->cmd51_can_256b = 1;
468 lpc2000_info->cmd51_can_8192b = 0;
469 lpc2000_info->checksum_vector = 7;
470 }
471 else
472 {
473 LOG_ERROR("unknown LPC2000 variant: %s", CMD_ARGV[6]);
474 free(lpc2000_info);
475 return ERROR_FLASH_BANK_INVALID;
476 }
477
478 lpc2000_info->iap_working_area = NULL;
479 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[7], lpc2000_info->cclk);
480 lpc2000_info->calc_checksum = 0;
481 lpc2000_build_sector_list(bank);
482
483 if (CMD_ARGC >= 9)
484 {
485 if (strcmp(CMD_ARGV[8], "calc_checksum") == 0)
486 lpc2000_info->calc_checksum = 1;
487 }
488
489 return ERROR_OK;
490 }
491
492 static int lpc2000_erase(struct flash_bank *bank, int first, int last)
493 {
494 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
495 uint32_t param_table[5];
496 uint32_t result_table[4];
497 int status_code;
498
499 if (bank->target->state != TARGET_HALTED)
500 {
501 LOG_ERROR("Target not halted");
502 return ERROR_TARGET_NOT_HALTED;
503 }
504
505 param_table[0] = first;
506 param_table[1] = last;
507 param_table[2] = lpc2000_info->cclk;
508
509 /* Prepare sectors */
510 status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
511 switch (status_code)
512 {
513 case ERROR_FLASH_OPERATION_FAILED:
514 return ERROR_FLASH_OPERATION_FAILED;
515 case LPC2000_CMD_SUCCESS:
516 break;
517 case LPC2000_INVALID_SECTOR:
518 return ERROR_FLASH_SECTOR_INVALID;
519 break;
520 default:
521 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code);
522 return ERROR_FLASH_OPERATION_FAILED;
523 }
524
525 /* Erase sectors */
526 status_code = lpc2000_iap_call(bank, 52, param_table, result_table);
527 switch (status_code)
528 {
529 case ERROR_FLASH_OPERATION_FAILED:
530 return ERROR_FLASH_OPERATION_FAILED;
531 case LPC2000_CMD_SUCCESS:
532 break;
533 case LPC2000_INVALID_SECTOR:
534 return ERROR_FLASH_SECTOR_INVALID;
535 break;
536 default:
537 LOG_WARNING("lpc2000 erase sectors returned %i", status_code);
538 return ERROR_FLASH_OPERATION_FAILED;
539 }
540
541 return ERROR_OK;
542 }
543
544 static int lpc2000_protect(struct flash_bank *bank, int set, int first, int last)
545 {
546 /* can't protect/unprotect on the lpc2000 */
547 return ERROR_OK;
548 }
549
550 static int lpc2000_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
551 {
552 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
553 struct target *target = bank->target;
554 uint32_t dst_min_alignment;
555 uint32_t bytes_remaining = count;
556 uint32_t bytes_written = 0;
557 int first_sector = 0;
558 int last_sector = 0;
559 uint32_t param_table[5];
560 uint32_t result_table[4];
561 int status_code;
562 int i;
563 struct working_area *download_area;
564 int retval = ERROR_OK;
565
566 if (bank->target->state != TARGET_HALTED)
567 {
568 LOG_ERROR("Target not halted");
569 return ERROR_TARGET_NOT_HALTED;
570 }
571
572 if (offset + count > bank->size)
573 return ERROR_FLASH_DST_OUT_OF_BANK;
574
575 dst_min_alignment = lpc2000_info->cmd51_dst_boundary;
576
577 if (offset % dst_min_alignment)
578 {
579 LOG_WARNING("offset 0x%" PRIx32 " breaks required alignment 0x%" PRIx32, offset, dst_min_alignment);
580 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
581 }
582
583 for (i = 0; i < bank->num_sectors; i++)
584 {
585 if (offset >= bank->sectors[i].offset)
586 first_sector = i;
587 if (offset + DIV_ROUND_UP(count, dst_min_alignment) * dst_min_alignment > bank->sectors[i].offset)
588 last_sector = i;
589 }
590
591 LOG_DEBUG("first_sector: %i, last_sector: %i", first_sector, last_sector);
592
593 /* check if exception vectors should be flashed */
594 if ((offset == 0) && (count >= 0x20) && lpc2000_info->calc_checksum)
595 {
596 uint32_t checksum = 0;
597 int i;
598 for (i = 0; i < 8; i++)
599 {
600 LOG_DEBUG("Vector 0x%2.2x: 0x%8.8" PRIx32, i * 4, buf_get_u32(buffer + (i * 4), 0, 32));
601 if (i != lpc2000_info->checksum_vector)
602 checksum += buf_get_u32(buffer + (i * 4), 0, 32);
603 }
604 checksum = 0 - checksum;
605 LOG_DEBUG("checksum: 0x%8.8" PRIx32, checksum);
606
607 uint32_t original_value = buf_get_u32(buffer + (lpc2000_info->checksum_vector * 4), 0, 32);
608 if (original_value != checksum)
609 {
610 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 ").",
611 original_value, checksum);
612 LOG_WARNING("To remove this warning modify build tools on developer PC to inject correct LPC vector checksum.");
613 }
614
615 buf_set_u32(buffer + (lpc2000_info->checksum_vector * 4), 0, 32, checksum);
616 }
617
618 /* allocate a working area */
619 if (target_alloc_working_area(target, lpc2000_info->cmd51_max_buffer, &download_area) != ERROR_OK)
620 {
621 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
622 return ERROR_FLASH_OPERATION_FAILED;
623 }
624
625 while (bytes_remaining > 0)
626 {
627 uint32_t thisrun_bytes;
628 if (bytes_remaining >= lpc2000_info->cmd51_max_buffer)
629 thisrun_bytes = lpc2000_info->cmd51_max_buffer;
630 else if (bytes_remaining >= 1024)
631 thisrun_bytes = 1024;
632 else if ((bytes_remaining >= 512) || (!lpc2000_info->cmd51_can_256b))
633 thisrun_bytes = 512;
634 else
635 thisrun_bytes = 256;
636
637 /* Prepare sectors */
638 param_table[0] = first_sector;
639 param_table[1] = last_sector;
640 status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
641 switch (status_code)
642 {
643 case ERROR_FLASH_OPERATION_FAILED:
644 retval = ERROR_FLASH_OPERATION_FAILED;
645 break;
646 case LPC2000_CMD_SUCCESS:
647 break;
648 case LPC2000_INVALID_SECTOR:
649 retval = ERROR_FLASH_SECTOR_INVALID;
650 break;
651 default:
652 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code);
653 retval = ERROR_FLASH_OPERATION_FAILED;
654 break;
655 }
656
657 /* Exit if error occured */
658 if (retval != ERROR_OK)
659 break;
660
661 if (bytes_remaining >= thisrun_bytes)
662 {
663 if ((retval = target_write_buffer(bank->target, download_area->address, thisrun_bytes, buffer + bytes_written)) != ERROR_OK)
664 {
665 retval = ERROR_FLASH_OPERATION_FAILED;
666 break;
667 }
668 }
669 else
670 {
671 uint8_t *last_buffer = malloc(thisrun_bytes);
672 memcpy(last_buffer, buffer + bytes_written, bytes_remaining);
673 memset(last_buffer + bytes_remaining, 0xff, thisrun_bytes - bytes_remaining);
674 target_write_buffer(bank->target, download_area->address, thisrun_bytes, last_buffer);
675 free(last_buffer);
676 }
677
678 LOG_DEBUG("writing 0x%" PRIx32 " bytes to address 0x%" PRIx32 , thisrun_bytes, bank->base + offset + bytes_written);
679
680 /* Write data */
681 param_table[0] = bank->base + offset + bytes_written;
682 param_table[1] = download_area->address;
683 param_table[2] = thisrun_bytes;
684 param_table[3] = lpc2000_info->cclk;
685 status_code = lpc2000_iap_call(bank, 51, param_table, result_table);
686 switch (status_code)
687 {
688 case ERROR_FLASH_OPERATION_FAILED:
689 retval = ERROR_FLASH_OPERATION_FAILED;
690 break;
691 case LPC2000_CMD_SUCCESS:
692 break;
693 case LPC2000_INVALID_SECTOR:
694 retval = ERROR_FLASH_SECTOR_INVALID;
695 break;
696 default:
697 LOG_WARNING("lpc2000 returned %i", status_code);
698 retval = ERROR_FLASH_OPERATION_FAILED;
699 break;
700 }
701
702 /* Exit if error occured */
703 if (retval != ERROR_OK)
704 break;
705
706 if (bytes_remaining > thisrun_bytes)
707 bytes_remaining -= thisrun_bytes;
708 else
709 bytes_remaining = 0;
710 bytes_written += thisrun_bytes;
711 }
712
713 target_free_working_area(target, download_area);
714
715 return retval;
716 }
717
718 static int lpc2000_probe(struct flash_bank *bank)
719 {
720 /* we can't probe on an lpc2000
721 * if this is an lpc2xxx, it has the configured flash
722 */
723 return ERROR_OK;
724 }
725
726 static int lpc2000_erase_check(struct flash_bank *bank)
727 {
728 if (bank->target->state != TARGET_HALTED)
729 {
730 LOG_ERROR("Target not halted");
731 return ERROR_TARGET_NOT_HALTED;
732 }
733
734 return lpc2000_iap_blank_check(bank, 0, bank->num_sectors - 1);
735 }
736
737 static int lpc2000_protect_check(struct flash_bank *bank)
738 {
739 /* sectors are always protected */
740 return ERROR_OK;
741 }
742
743 static int lpc2000_info(struct flash_bank *bank, char *buf, int buf_size)
744 {
745 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
746
747 snprintf(buf, buf_size, "lpc2000 flash driver variant: %i, clk: %" PRIi32 "kHz" , lpc2000_info->variant, lpc2000_info->cclk);
748
749 return ERROR_OK;
750 }
751
752 COMMAND_HANDLER(lpc2000_handle_part_id_command)
753 {
754 uint32_t param_table[5];
755 uint32_t result_table[4];
756 int status_code;
757
758 if (CMD_ARGC < 1)
759 {
760 return ERROR_COMMAND_SYNTAX_ERROR;
761 }
762
763 struct flash_bank *bank;
764 int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
765 if (ERROR_OK != retval)
766 return retval;
767
768 if (bank->target->state != TARGET_HALTED)
769 {
770 LOG_ERROR("Target not halted");
771 return ERROR_TARGET_NOT_HALTED;
772 }
773
774 if ((status_code = lpc2000_iap_call(bank, 54, param_table, result_table)) != 0x0)
775 {
776 if (status_code == ERROR_FLASH_OPERATION_FAILED)
777 {
778 command_print(CMD_CTX, "no sufficient working area specified, can't access LPC2000 IAP interface");
779 return ERROR_OK;
780 }
781 command_print(CMD_CTX, "lpc2000 IAP returned status code %i", status_code);
782 }
783 else
784 {
785 command_print(CMD_CTX, "lpc2000 part id: 0x%8.8" PRIx32 , result_table[0]);
786 }
787
788 return ERROR_OK;
789 }
790
791 static const struct command_registration lpc2000_exec_command_handlers[] = {
792 {
793 .name = "part_id",
794 .handler = lpc2000_handle_part_id_command,
795 .mode = COMMAND_EXEC,
796 .help = "print part id of lpc2000 flash bank <num>",
797 },
798 COMMAND_REGISTRATION_DONE
799 };
800 static const struct command_registration lpc2000_command_handlers[] = {
801 {
802 .name = "lpc2000",
803 .mode = COMMAND_ANY,
804 .help = "lpc2000 flash command group",
805 .chain = lpc2000_exec_command_handlers,
806 },
807 COMMAND_REGISTRATION_DONE
808 };
809
810 struct flash_driver lpc2000_flash = {
811 .name = "lpc2000",
812 .commands = lpc2000_command_handlers,
813 .flash_bank_command = lpc2000_flash_bank_command,
814 .erase = lpc2000_erase,
815 .protect = lpc2000_protect,
816 .write = lpc2000_write,
817 .read = default_flash_read,
818 .probe = lpc2000_probe,
819 .auto_probe = lpc2000_probe,
820 .erase_check = lpc2000_erase_check,
821 .protect_check = lpc2000_protect_check,
822 .info = lpc2000_info,
823 };