1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * LPC1700 support Copyright (C) 2009 by Audrius Urmanavicius *
6 * didele.deze@gmail.com *
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. *
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. *
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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
22 ***************************************************************************/
29 #include <helper/binarybuffer.h>
30 #include <target/algorithm.h>
31 #include <target/arm_opcodes.h>
32 #include <target/armv7m.h>
36 * flash programming support for NXP LPC17xx and LPC2xxx devices.
38 * @todo Provide a way to update CCLK after declaring the flash bank. The value which is correct after chip reset will
39 * rarely still work right after the clocks switch to use the PLL (e.g. 4MHz --> 100 MHz).
42 * currently supported devices:
43 * variant 1 (lpc2000_v1):
51 * variant 2 (lpc2000_v2):
60 * - 176x (tested with LPC1768)
62 * lpc4300 (also available as lpc1800 - alias)
63 * - 43x2 | 3 | 5 | 7 (tested with LPC4337/LPC4357)
67 * - 810 | 1 | 2 (tested with LPC810/LPC812)
78 struct lpc2000_flash_bank {
79 lpc2000_variant variant;
81 int cmd51_dst_boundary;
86 uint32_t cmd51_max_buffer;
88 uint32_t iap_max_stack;
89 uint32_t cmd51_src_offset;
90 uint32_t lpc4300_bank;
93 enum lpc2000_status_codes {
94 LPC2000_CMD_SUCCESS = 0,
95 LPC2000_INVALID_COMMAND = 1,
96 LPC2000_SRC_ADDR_ERROR = 2,
97 LPC2000_DST_ADDR_ERROR = 3,
98 LPC2000_SRC_ADDR_NOT_MAPPED = 4,
99 LPC2000_DST_ADDR_NOT_MAPPED = 5,
100 LPC2000_COUNT_ERROR = 6,
101 LPC2000_INVALID_SECTOR = 7,
102 LPC2000_SECTOR_NOT_BLANK = 8,
103 LPC2000_SECTOR_NOT_PREPARED = 9,
104 LPC2000_COMPARE_ERROR = 10,
106 LPC2000_PARAM_ERROR = 12,
107 LPC2000_ADDR_ERROR = 13,
108 LPC2000_ADDR_NOT_MAPPED = 14,
109 LPC2000_CMD_NOT_LOCKED = 15,
110 LPC2000_INVALID_CODE = 16,
111 LPC2000_INVALID_BAUD_RATE = 17,
112 LPC2000_INVALID_STOP_BIT = 18,
113 LPC2000_CRP_ENABLED = 19,
114 LPC2000_INVALID_FLASH_UNIT = 20,
115 LPC2000_USER_CODE_CHECKSUM = 21,
116 LCP2000_ERROR_SETTING_ACTIVE_PARTITION = 22,
119 static int lpc2000_build_sector_list(struct flash_bank *bank)
121 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
124 /* default to a 4096 write buffer */
125 lpc2000_info->cmd51_max_buffer = 4096;
127 if (lpc2000_info->variant == lpc2000_v1) {
128 /* variant 1 has different layout for 128kb and 256kb flashes */
129 if (bank->size == 128 * 1024) {
130 bank->num_sectors = 16;
131 bank->sectors = malloc(sizeof(struct flash_sector) * 16);
132 for (int i = 0; i < 16; i++) {
133 bank->sectors[i].offset = offset;
134 bank->sectors[i].size = 8 * 1024;
135 offset += bank->sectors[i].size;
136 bank->sectors[i].is_erased = -1;
137 bank->sectors[i].is_protected = 1;
139 } else if (bank->size == 256 * 1024) {
140 bank->num_sectors = 18;
141 bank->sectors = malloc(sizeof(struct flash_sector) * 18);
143 for (int i = 0; i < 8; i++) {
144 bank->sectors[i].offset = offset;
145 bank->sectors[i].size = 8 * 1024;
146 offset += bank->sectors[i].size;
147 bank->sectors[i].is_erased = -1;
148 bank->sectors[i].is_protected = 1;
150 for (int i = 8; i < 10; i++) {
151 bank->sectors[i].offset = offset;
152 bank->sectors[i].size = 64 * 1024;
153 offset += bank->sectors[i].size;
154 bank->sectors[i].is_erased = -1;
155 bank->sectors[i].is_protected = 1;
157 for (int i = 10; i < 18; i++) {
158 bank->sectors[i].offset = offset;
159 bank->sectors[i].size = 8 * 1024;
160 offset += bank->sectors[i].size;
161 bank->sectors[i].is_erased = -1;
162 bank->sectors[i].is_protected = 1;
165 LOG_ERROR("BUG: unknown bank->size encountered");
168 } else if (lpc2000_info->variant == lpc2000_v2) {
169 /* variant 2 has a uniform layout, only number of sectors differs */
170 switch (bank->size) {
172 lpc2000_info->cmd51_max_buffer = 1024;
173 bank->num_sectors = 1;
176 lpc2000_info->cmd51_max_buffer = 1024;
177 bank->num_sectors = 2;
180 bank->num_sectors = 4;
183 bank->num_sectors = 8;
186 bank->num_sectors = 9;
189 bank->num_sectors = 11;
192 bank->num_sectors = 15;
195 bank->num_sectors = 27;
199 bank->num_sectors = 28;
202 LOG_ERROR("BUG: unknown bank->size encountered");
207 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
209 for (int i = 0; i < bank->num_sectors; i++) {
211 bank->sectors[i].offset = offset;
212 bank->sectors[i].size = 4 * 1024;
213 offset += bank->sectors[i].size;
214 bank->sectors[i].is_erased = -1;
215 bank->sectors[i].is_protected = 1;
217 bank->sectors[i].offset = offset;
218 bank->sectors[i].size = 32 * 1024;
219 offset += bank->sectors[i].size;
220 bank->sectors[i].is_erased = -1;
221 bank->sectors[i].is_protected = 1;
223 bank->sectors[i].offset = offset;
224 bank->sectors[i].size = 4 * 1024;
225 offset += bank->sectors[i].size;
226 bank->sectors[i].is_erased = -1;
227 bank->sectors[i].is_protected = 1;
230 } else if (lpc2000_info->variant == lpc1700) {
231 switch (bank->size) {
233 lpc2000_info->cmd51_max_buffer = 256;
234 bank->num_sectors = 1;
237 lpc2000_info->cmd51_max_buffer = 512;
238 bank->num_sectors = 2;
241 lpc2000_info->cmd51_max_buffer = 512;
242 bank->num_sectors = 4;
245 lpc2000_info->cmd51_max_buffer = 1024;
246 bank->num_sectors = 8;
249 bank->num_sectors = 16;
252 bank->num_sectors = 18;
255 bank->num_sectors = 22;
258 bank->num_sectors = 30;
261 LOG_ERROR("BUG: unknown bank->size encountered");
265 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
267 for (int i = 0; i < bank->num_sectors; i++) {
268 bank->sectors[i].offset = offset;
269 /* sectors 0-15 are 4kB-sized, 16 and above are 32kB-sized for LPC17xx devices */
270 bank->sectors[i].size = (i < 16) ? 4 * 1024 : 32 * 1024;
271 offset += bank->sectors[i].size;
272 bank->sectors[i].is_erased = -1;
273 bank->sectors[i].is_protected = 1;
275 } else if (lpc2000_info->variant == lpc4300) {
276 switch (bank->size) {
278 bank->num_sectors = 11;
281 bank->num_sectors = 13;
284 bank->num_sectors = 15;
287 LOG_ERROR("BUG: unknown bank->size encountered");
291 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
293 for (int i = 0; i < bank->num_sectors; i++) {
294 bank->sectors[i].offset = offset;
295 /* sectors 0-7 are 8kB-sized, 8 and above are 64kB-sized for LPC43xx devices */
296 bank->sectors[i].size = (i < 8) ? 8 * 1024 : 64 * 1024;
297 offset += bank->sectors[i].size;
298 bank->sectors[i].is_erased = -1;
299 bank->sectors[i].is_protected = 1;
302 } else if (lpc2000_info->variant == lpc800) {
303 lpc2000_info->cmd51_max_buffer = 1024;
304 switch (bank->size) {
306 lpc2000_info->cmd51_max_buffer = 256;
307 bank->num_sectors = 4;
310 lpc2000_info->cmd51_max_buffer = 512;
311 bank->num_sectors = 8;
314 bank->num_sectors = 16;
317 LOG_ERROR("BUG: unknown bank->size encountered");
321 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
323 for (int i = 0; i < bank->num_sectors; i++) {
324 bank->sectors[i].offset = offset;
325 /* sectors 0-15 are 1kB-sized for LPC8xx devices */
326 bank->sectors[i].size = 1 * 1024;
327 offset += bank->sectors[i].size;
328 bank->sectors[i].is_erased = -1;
329 bank->sectors[i].is_protected = 1;
333 LOG_ERROR("BUG: unknown lpc2000_info->variant encountered");
340 /* this function allocates and initializes working area used for IAP algorithm
341 * uses 52 + max IAP stack bytes working area
342 * 0x0 to 0x7: jump gate (BX to thumb state, b -2 to wait)
343 * 0x8 to 0x1f: command parameter table (1+5 words)
344 * 0x20 to 0x33: command result table (1+4 words)
345 * 0x34 to 0xb3|0x104: stack (only 128b needed for lpc17xx/2000, 208 for lpc43xx and 148b for lpc8xx)
348 static int lpc2000_iap_working_area_init(struct flash_bank *bank, struct working_area **iap_working_area)
350 struct target *target = bank->target;
351 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
353 if (target_alloc_working_area(target, 0x34 + lpc2000_info->iap_max_stack, iap_working_area) != ERROR_OK) {
354 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
355 return ERROR_FLASH_OPERATION_FAILED;
358 uint8_t jump_gate[8];
360 /* write IAP code to working area */
361 switch (lpc2000_info->variant) {
365 target_buffer_set_u32(target, jump_gate, ARMV4_5_T_BX(12));
366 target_buffer_set_u32(target, jump_gate + 4, ARMV5_T_BKPT(0));
370 target_buffer_set_u32(target, jump_gate, ARMV4_5_BX(12));
371 target_buffer_set_u32(target, jump_gate + 4, ARMV4_5_B(0xfffffe, 0));
374 LOG_ERROR("BUG: unknown lpc2000_info->variant encountered");
378 int retval = target_write_memory(target, (*iap_working_area)->address, 4, 2, jump_gate);
379 if (retval != ERROR_OK)
380 LOG_ERROR("Write memory at address 0x%8.8" PRIx32 " failed (check work_area definition)",
381 (*iap_working_area)->address);
386 /* call LPC1700/LPC2000 IAP function */
388 static int lpc2000_iap_call(struct flash_bank *bank, struct working_area *iap_working_area, int code,
389 uint32_t param_table[5], uint32_t result_table[4])
391 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
392 struct target *target = bank->target;
394 struct arm_algorithm arm_algo; /* for LPC2000 */
395 struct armv7m_algorithm armv7m_info; /* for LPC1700 */
396 uint32_t iap_entry_point = 0; /* to make compiler happier */
398 switch (lpc2000_info->variant) {
401 armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
402 armv7m_info.core_mode = ARM_MODE_THREAD;
403 iap_entry_point = 0x1fff1ff1;
407 arm_algo.common_magic = ARM_COMMON_MAGIC;
408 arm_algo.core_mode = ARM_MODE_SVC;
409 arm_algo.core_state = ARM_STATE_ARM;
410 iap_entry_point = 0x7ffffff1;
413 armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
414 armv7m_info.core_mode = ARM_MODE_THREAD;
415 /* read out IAP entry point from ROM driver table at 0x10400100 */
416 target_read_u32(target, 0x10400100, &iap_entry_point);
419 LOG_ERROR("BUG: unknown lpc2000->variant encountered");
423 struct mem_param mem_params[2];
425 /* command parameter table */
426 init_mem_param(&mem_params[0], iap_working_area->address + 8, 6 * 4, PARAM_OUT);
427 target_buffer_set_u32(target, mem_params[0].value, code);
428 target_buffer_set_u32(target, mem_params[0].value + 0x04, param_table[0]);
429 target_buffer_set_u32(target, mem_params[0].value + 0x08, param_table[1]);
430 target_buffer_set_u32(target, mem_params[0].value + 0x0c, param_table[2]);
431 target_buffer_set_u32(target, mem_params[0].value + 0x10, param_table[3]);
432 target_buffer_set_u32(target, mem_params[0].value + 0x14, param_table[4]);
434 struct reg_param reg_params[5];
436 init_reg_param(®_params[0], "r0", 32, PARAM_OUT);
437 buf_set_u32(reg_params[0].value, 0, 32, iap_working_area->address + 0x08);
439 /* command result table */
440 init_mem_param(&mem_params[1], iap_working_area->address + 0x20, 5 * 4, PARAM_IN);
442 init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
443 buf_set_u32(reg_params[1].value, 0, 32, iap_working_area->address + 0x20);
445 /* IAP entry point */
446 init_reg_param(®_params[2], "r12", 32, PARAM_OUT);
447 buf_set_u32(reg_params[2].value, 0, 32, iap_entry_point);
449 switch (lpc2000_info->variant) {
454 init_reg_param(®_params[3], "sp", 32, PARAM_OUT);
455 buf_set_u32(reg_params[3].value, 0, 32, iap_working_area->address + lpc2000_info->cmd51_src_offset);
458 init_reg_param(®_params[4], "lr", 32, PARAM_OUT);
459 buf_set_u32(reg_params[4].value, 0, 32, (iap_working_area->address + 0x04) | 1);
460 /* bit0 of LR = 1 to return in Thumb mode */
462 target_run_algorithm(target, 2, mem_params, 5, reg_params, iap_working_area->address, 0, 10000,
468 init_reg_param(®_params[3], "sp_svc", 32, PARAM_OUT);
469 buf_set_u32(reg_params[3].value, 0, 32, iap_working_area->address + lpc2000_info->cmd51_src_offset);
472 init_reg_param(®_params[4], "lr_svc", 32, PARAM_OUT);
473 buf_set_u32(reg_params[4].value, 0, 32, iap_working_area->address + 0x04);
475 target_run_algorithm(target, 2, mem_params, 5, reg_params, iap_working_area->address,
476 iap_working_area->address + 0x4, 10000, &arm_algo);
479 LOG_ERROR("BUG: unknown lpc2000->variant encountered");
483 int status_code = target_buffer_get_u32(target, mem_params[1].value);
484 result_table[0] = target_buffer_get_u32(target, mem_params[1].value + 0x04);
485 result_table[1] = target_buffer_get_u32(target, mem_params[1].value + 0x08);
486 result_table[2] = target_buffer_get_u32(target, mem_params[1].value + 0x0c);
487 result_table[3] = target_buffer_get_u32(target, mem_params[1].value + 0x10);
489 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
490 ") completed with result = %8.8x",
491 code, param_table[0], param_table[1], param_table[2], param_table[3], param_table[4], status_code);
493 destroy_mem_param(&mem_params[0]);
494 destroy_mem_param(&mem_params[1]);
496 destroy_reg_param(®_params[0]);
497 destroy_reg_param(®_params[1]);
498 destroy_reg_param(®_params[2]);
499 destroy_reg_param(®_params[3]);
500 destroy_reg_param(®_params[4]);
505 static int lpc2000_iap_blank_check(struct flash_bank *bank, int first, int last)
507 if ((first < 0) || (last >= bank->num_sectors))
508 return ERROR_FLASH_SECTOR_INVALID;
510 uint32_t param_table[5] = {0};
511 uint32_t result_table[4];
512 struct working_area *iap_working_area;
514 int retval = lpc2000_iap_working_area_init(bank, &iap_working_area);
516 if (retval != ERROR_OK)
519 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
520 if (lpc2000_info->variant == lpc4300)
521 param_table[2] = lpc2000_info->lpc4300_bank;
523 for (int i = first; i <= last && retval == ERROR_OK; i++) {
524 /* check single sector */
525 param_table[0] = param_table[1] = i;
526 int status_code = lpc2000_iap_call(bank, iap_working_area, 53, param_table, result_table);
528 switch (status_code) {
529 case ERROR_FLASH_OPERATION_FAILED:
530 retval = ERROR_FLASH_OPERATION_FAILED;
532 case LPC2000_CMD_SUCCESS:
533 bank->sectors[i].is_erased = 1;
535 case LPC2000_SECTOR_NOT_BLANK:
536 bank->sectors[i].is_erased = 0;
538 case LPC2000_INVALID_SECTOR:
539 bank->sectors[i].is_erased = 0;
542 retval = ERROR_FLASH_BUSY;
545 LOG_ERROR("BUG: unknown LPC2000 status code %i", status_code);
550 struct target *target = bank->target;
551 target_free_working_area(target, iap_working_area);
557 * flash bank lpc2000 <base> <size> 0 0 <target#> <lpc_variant> <cclk> [calc_checksum]
559 FLASH_BANK_COMMAND_HANDLER(lpc2000_flash_bank_command)
562 return ERROR_COMMAND_SYNTAX_ERROR;
564 struct lpc2000_flash_bank *lpc2000_info = calloc(1, sizeof(*lpc2000_info));
566 bank->driver_priv = lpc2000_info;
568 if (strcmp(CMD_ARGV[6], "lpc2000_v1") == 0) {
569 lpc2000_info->variant = lpc2000_v1;
570 lpc2000_info->cmd51_dst_boundary = 512;
571 lpc2000_info->cmd51_can_256b = 0;
572 lpc2000_info->cmd51_can_8192b = 1;
573 lpc2000_info->checksum_vector = 5;
574 lpc2000_info->iap_max_stack = 128;
575 } else if (strcmp(CMD_ARGV[6], "lpc2000_v2") == 0) {
576 lpc2000_info->variant = lpc2000_v2;
577 lpc2000_info->cmd51_dst_boundary = 256;
578 lpc2000_info->cmd51_can_256b = 1;
579 lpc2000_info->cmd51_can_8192b = 0;
580 lpc2000_info->checksum_vector = 5;
581 lpc2000_info->iap_max_stack = 128;
582 } else if (strcmp(CMD_ARGV[6], "lpc1700") == 0) {
583 lpc2000_info->variant = lpc1700;
584 lpc2000_info->cmd51_dst_boundary = 256;
585 lpc2000_info->cmd51_can_256b = 1;
586 lpc2000_info->cmd51_can_8192b = 0;
587 lpc2000_info->checksum_vector = 7;
588 lpc2000_info->iap_max_stack = 128;
589 } else if (strcmp(CMD_ARGV[6], "lpc1800") == 0 || strcmp(CMD_ARGV[6], "lpc4300") == 0) {
590 lpc2000_info->variant = lpc4300;
591 lpc2000_info->cmd51_dst_boundary = 512;
592 lpc2000_info->cmd51_can_256b = 0;
593 lpc2000_info->cmd51_can_8192b = 0;
594 lpc2000_info->checksum_vector = 7;
595 lpc2000_info->iap_max_stack = 208;
596 } else if (strcmp(CMD_ARGV[6], "lpc800") == 0) {
597 lpc2000_info->variant = lpc800;
598 lpc2000_info->cmd51_dst_boundary = 64;
599 lpc2000_info->cmd51_can_64b = 1;
600 lpc2000_info->cmd51_can_256b = 0;
601 lpc2000_info->cmd51_can_8192b = 0;
602 lpc2000_info->checksum_vector = 7;
603 lpc2000_info->iap_max_stack = 148;
605 LOG_ERROR("unknown LPC2000 variant: %s", CMD_ARGV[6]);
607 return ERROR_FLASH_BANK_INVALID;
610 /* see lpc2000_iap_working_area_init() for the reason behind the 0x34 value */
611 lpc2000_info->cmd51_src_offset = 0x34 + lpc2000_info->iap_max_stack;
613 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[7], lpc2000_info->cclk);
614 lpc2000_info->calc_checksum = 0;
615 lpc2000_build_sector_list(bank);
617 uint32_t temp_base = 0;
618 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], temp_base);
619 if (temp_base >= 0x1B000000)
620 lpc2000_info->lpc4300_bank = 1; /* bank B */
622 lpc2000_info->lpc4300_bank = 0; /* bank A */
625 if (strcmp(CMD_ARGV[8], "calc_checksum") == 0)
626 lpc2000_info->calc_checksum = 1;
632 static int lpc2000_erase(struct flash_bank *bank, int first, int last)
634 if (bank->target->state != TARGET_HALTED) {
635 LOG_ERROR("Target not halted");
636 return ERROR_TARGET_NOT_HALTED;
639 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
640 uint32_t param_table[5] = {0};
642 param_table[0] = first;
643 param_table[1] = last;
645 if (lpc2000_info->variant == lpc4300)
646 param_table[2] = lpc2000_info->lpc4300_bank;
648 param_table[2] = lpc2000_info->cclk;
650 uint32_t result_table[4];
651 struct working_area *iap_working_area;
653 int retval = lpc2000_iap_working_area_init(bank, &iap_working_area);
655 if (retval != ERROR_OK)
658 if (lpc2000_info->variant == lpc4300)
659 /* Init IAP Anyway */
660 lpc2000_iap_call(bank, iap_working_area, 49, param_table, result_table);
662 /* Prepare sectors */
663 int status_code = lpc2000_iap_call(bank, iap_working_area, 50, param_table, result_table);
664 switch (status_code) {
665 case ERROR_FLASH_OPERATION_FAILED:
666 retval = ERROR_FLASH_OPERATION_FAILED;
668 case LPC2000_CMD_SUCCESS:
670 case LPC2000_INVALID_SECTOR:
671 retval = ERROR_FLASH_SECTOR_INVALID;
674 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code);
675 retval = ERROR_FLASH_OPERATION_FAILED;
679 if (retval == ERROR_OK) {
681 param_table[2] = lpc2000_info->cclk;
682 if (lpc2000_info->variant == lpc4300)
683 param_table[3] = lpc2000_info->lpc4300_bank;
685 status_code = lpc2000_iap_call(bank, iap_working_area, 52, param_table, result_table);
686 switch (status_code) {
687 case ERROR_FLASH_OPERATION_FAILED:
688 retval = ERROR_FLASH_OPERATION_FAILED;
690 case LPC2000_CMD_SUCCESS:
692 case LPC2000_INVALID_SECTOR:
693 retval = ERROR_FLASH_SECTOR_INVALID;
696 LOG_WARNING("lpc2000 erase sectors returned %i", status_code);
697 retval = ERROR_FLASH_OPERATION_FAILED;
702 struct target *target = bank->target;
703 target_free_working_area(target, iap_working_area);
708 static int lpc2000_protect(struct flash_bank *bank, int set, int first, int last)
710 /* can't protect/unprotect on the lpc2000 */
714 static int lpc2000_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
716 struct target *target = bank->target;
718 if (bank->target->state != TARGET_HALTED) {
719 LOG_ERROR("Target not halted");
720 return ERROR_TARGET_NOT_HALTED;
723 if (offset + count > bank->size)
724 return ERROR_FLASH_DST_OUT_OF_BANK;
726 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
728 uint32_t dst_min_alignment = lpc2000_info->cmd51_dst_boundary;
730 if (offset % dst_min_alignment) {
731 LOG_WARNING("offset 0x%" PRIx32 " breaks required alignment 0x%" PRIx32, offset, dst_min_alignment);
732 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
735 int first_sector = 0;
738 for (int i = 0; i < bank->num_sectors; i++) {
739 if (offset >= bank->sectors[i].offset)
741 if (offset + DIV_ROUND_UP(count, dst_min_alignment) * dst_min_alignment > bank->sectors[i].offset)
745 LOG_DEBUG("first_sector: %i, last_sector: %i", first_sector, last_sector);
747 /* check if exception vectors should be flashed */
748 if ((offset == 0) && (count >= 0x20) && lpc2000_info->calc_checksum) {
749 uint32_t checksum = 0;
750 for (int i = 0; i < 8; i++) {
751 LOG_DEBUG("Vector 0x%2.2x: 0x%8.8" PRIx32, i * 4, buf_get_u32(buffer + (i * 4), 0, 32));
752 if (i != lpc2000_info->checksum_vector)
753 checksum += buf_get_u32(buffer + (i * 4), 0, 32);
755 checksum = 0 - checksum;
756 LOG_DEBUG("checksum: 0x%8.8" PRIx32, checksum);
758 uint32_t original_value = buf_get_u32(buffer + (lpc2000_info->checksum_vector * 4), 0, 32);
759 if (original_value != checksum) {
760 LOG_WARNING("Verification will fail since checksum in image (0x%8.8" PRIx32 ") to be written to flash is "
761 "different from calculated vector checksum (0x%8.8" PRIx32 ").", original_value, checksum);
762 LOG_WARNING("To remove this warning modify build tools on developer PC to inject correct LPC vector "
766 buf_set_u32(buffer + (lpc2000_info->checksum_vector * 4), 0, 32, checksum);
769 struct working_area *iap_working_area;
771 int retval = lpc2000_iap_working_area_init(bank, &iap_working_area);
773 if (retval != ERROR_OK)
776 struct working_area *download_area;
778 /* allocate a working area */
779 if (target_alloc_working_area(target, lpc2000_info->cmd51_max_buffer, &download_area) != ERROR_OK) {
780 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
781 target_free_working_area(target, iap_working_area);
782 return ERROR_FLASH_OPERATION_FAILED;
785 uint32_t bytes_remaining = count;
786 uint32_t bytes_written = 0;
787 uint32_t param_table[5] = {0};
788 uint32_t result_table[4];
790 if (lpc2000_info->variant == lpc4300)
791 /* Init IAP Anyway */
792 lpc2000_iap_call(bank, iap_working_area, 49, param_table, result_table);
794 while (bytes_remaining > 0) {
795 uint32_t thisrun_bytes;
796 if (bytes_remaining >= lpc2000_info->cmd51_max_buffer)
797 thisrun_bytes = lpc2000_info->cmd51_max_buffer;
798 else if (bytes_remaining >= 1024)
799 thisrun_bytes = 1024;
800 else if ((bytes_remaining >= 512) || (!lpc2000_info->cmd51_can_256b))
802 else if ((bytes_remaining >= 256) || (!lpc2000_info->cmd51_can_64b))
807 /* Prepare sectors */
808 param_table[0] = first_sector;
809 param_table[1] = last_sector;
811 if (lpc2000_info->variant == lpc4300)
812 param_table[2] = lpc2000_info->lpc4300_bank;
814 param_table[2] = lpc2000_info->cclk;
816 int status_code = lpc2000_iap_call(bank, iap_working_area, 50, param_table, result_table);
817 switch (status_code) {
818 case ERROR_FLASH_OPERATION_FAILED:
819 retval = ERROR_FLASH_OPERATION_FAILED;
821 case LPC2000_CMD_SUCCESS:
823 case LPC2000_INVALID_SECTOR:
824 retval = ERROR_FLASH_SECTOR_INVALID;
827 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code);
828 retval = ERROR_FLASH_OPERATION_FAILED;
832 /* Exit if error occured */
833 if (retval != ERROR_OK)
836 if (bytes_remaining >= thisrun_bytes) {
837 retval = target_write_buffer(bank->target, download_area->address, thisrun_bytes, buffer + bytes_written);
838 if (retval != ERROR_OK) {
839 retval = ERROR_FLASH_OPERATION_FAILED;
843 uint8_t *last_buffer = malloc(thisrun_bytes);
844 memcpy(last_buffer, buffer + bytes_written, bytes_remaining);
845 memset(last_buffer + bytes_remaining, 0xff, thisrun_bytes - bytes_remaining);
846 target_write_buffer(bank->target, download_area->address, thisrun_bytes, last_buffer);
850 LOG_DEBUG("writing 0x%" PRIx32 " bytes to address 0x%" PRIx32, thisrun_bytes,
851 bank->base + offset + bytes_written);
854 param_table[0] = bank->base + offset + bytes_written;
855 param_table[1] = download_area->address;
856 param_table[2] = thisrun_bytes;
857 param_table[3] = lpc2000_info->cclk;
858 status_code = lpc2000_iap_call(bank, iap_working_area, 51, param_table, result_table);
859 switch (status_code) {
860 case ERROR_FLASH_OPERATION_FAILED:
861 retval = ERROR_FLASH_OPERATION_FAILED;
863 case LPC2000_CMD_SUCCESS:
865 case LPC2000_INVALID_SECTOR:
866 retval = ERROR_FLASH_SECTOR_INVALID;
869 LOG_WARNING("lpc2000 returned %i", status_code);
870 retval = ERROR_FLASH_OPERATION_FAILED;
874 /* Exit if error occured */
875 if (retval != ERROR_OK)
878 if (bytes_remaining > thisrun_bytes)
879 bytes_remaining -= thisrun_bytes;
882 bytes_written += thisrun_bytes;
885 target_free_working_area(target, iap_working_area);
886 target_free_working_area(target, download_area);
891 static int lpc2000_probe(struct flash_bank *bank)
893 /* we can't probe on an lpc2000 if this is an lpc2xxx, it has the configured flash */
897 static int lpc2000_erase_check(struct flash_bank *bank)
899 if (bank->target->state != TARGET_HALTED) {
900 LOG_ERROR("Target not halted");
901 return ERROR_TARGET_NOT_HALTED;
904 return lpc2000_iap_blank_check(bank, 0, bank->num_sectors - 1);
907 static int lpc2000_protect_check(struct flash_bank *bank)
909 /* sectors are always protected */
913 static int get_lpc2000_info(struct flash_bank *bank, char *buf, int buf_size)
915 struct lpc2000_flash_bank *lpc2000_info = bank->driver_priv;
917 snprintf(buf, buf_size, "lpc2000 flash driver variant: %i, clk: %" PRIi32 "kHz", lpc2000_info->variant,
923 COMMAND_HANDLER(lpc2000_handle_part_id_command)
926 return ERROR_COMMAND_SYNTAX_ERROR;
928 struct flash_bank *bank;
929 int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
930 if (ERROR_OK != retval)
933 if (bank->target->state != TARGET_HALTED) {
934 LOG_ERROR("Target not halted");
935 return ERROR_TARGET_NOT_HALTED;
938 uint32_t param_table[5] = {0};
939 uint32_t result_table[4];
940 struct working_area *iap_working_area;
942 retval = lpc2000_iap_working_area_init(bank, &iap_working_area);
944 if (retval != ERROR_OK)
947 int status_code = lpc2000_iap_call(bank, iap_working_area, 54, param_table, result_table);
948 if (status_code != 0x0) {
949 if (status_code == ERROR_FLASH_OPERATION_FAILED) {
950 command_print(CMD_CTX, "no sufficient working area specified, can't access LPC2000 IAP interface");
952 command_print(CMD_CTX, "lpc2000 IAP returned status code %i", status_code);
954 command_print(CMD_CTX, "lpc2000 part id: 0x%8.8" PRIx32, result_table[0]);
959 static const struct command_registration lpc2000_exec_command_handlers[] = {
962 .handler = lpc2000_handle_part_id_command,
963 .mode = COMMAND_EXEC,
964 .help = "print part id of lpc2000 flash bank <num>",
967 COMMAND_REGISTRATION_DONE
969 static const struct command_registration lpc2000_command_handlers[] = {
973 .help = "lpc2000 flash command group",
975 .chain = lpc2000_exec_command_handlers,
977 COMMAND_REGISTRATION_DONE
980 struct flash_driver lpc2000_flash = {
982 .commands = lpc2000_command_handlers,
983 .flash_bank_command = lpc2000_flash_bank_command,
984 .erase = lpc2000_erase,
985 .protect = lpc2000_protect,
986 .write = lpc2000_write,
987 .read = default_flash_read,
988 .probe = lpc2000_probe,
989 .auto_probe = lpc2000_probe,
990 .erase_check = lpc2000_erase_check,
991 .protect_check = lpc2000_protect_check,
992 .info = get_lpc2000_info,