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 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 4337)
74 struct lpc2000_flash_bank
{
75 lpc2000_variant variant
;
77 int cmd51_dst_boundary
;
81 uint32_t cmd51_max_buffer
;
83 uint32_t iap_max_stack
;
84 uint32_t cmd51_src_offset
;
85 uint32_t lpc4300_bank
;
88 enum lpc2000_status_codes
{
89 LPC2000_CMD_SUCCESS
= 0,
90 LPC2000_INVALID_COMMAND
= 1,
91 LPC2000_SRC_ADDR_ERROR
= 2,
92 LPC2000_DST_ADDR_ERROR
= 3,
93 LPC2000_SRC_ADDR_NOT_MAPPED
= 4,
94 LPC2000_DST_ADDR_NOT_MAPPED
= 5,
95 LPC2000_COUNT_ERROR
= 6,
96 LPC2000_INVALID_SECTOR
= 7,
97 LPC2000_SECTOR_NOT_BLANK
= 8,
98 LPC2000_SECTOR_NOT_PREPARED
= 9,
99 LPC2000_COMPARE_ERROR
= 10,
101 LPC2000_PARAM_ERROR
= 12,
102 LPC2000_ADDR_ERROR
= 13,
103 LPC2000_ADDR_NOT_MAPPED
= 14,
104 LPC2000_CMD_NOT_LOCKED
= 15,
105 LPC2000_INVALID_CODE
= 16,
106 LPC2000_INVALID_BAUD_RATE
= 17,
107 LPC2000_INVALID_STOP_BIT
= 18,
108 LPC2000_CRP_ENABLED
= 19,
109 LPC2000_INVALID_FLASH_UNIT
= 20,
110 LPC2000_USER_CODE_CHECKSUM
= 21,
111 LCP2000_ERROR_SETTING_ACTIVE_PARTITION
= 22,
114 static int lpc2000_build_sector_list(struct flash_bank
*bank
)
116 struct lpc2000_flash_bank
*lpc2000_info
= bank
->driver_priv
;
119 /* default to a 4096 write buffer */
120 lpc2000_info
->cmd51_max_buffer
= 4096;
122 if (lpc2000_info
->variant
== lpc2000_v1
) {
123 /* variant 1 has different layout for 128kb and 256kb flashes */
124 if (bank
->size
== 128 * 1024) {
125 bank
->num_sectors
= 16;
126 bank
->sectors
= malloc(sizeof(struct flash_sector
) * 16);
127 for (int i
= 0; i
< 16; i
++) {
128 bank
->sectors
[i
].offset
= offset
;
129 bank
->sectors
[i
].size
= 8 * 1024;
130 offset
+= bank
->sectors
[i
].size
;
131 bank
->sectors
[i
].is_erased
= -1;
132 bank
->sectors
[i
].is_protected
= 1;
134 } else if (bank
->size
== 256 * 1024) {
135 bank
->num_sectors
= 18;
136 bank
->sectors
= malloc(sizeof(struct flash_sector
) * 18);
138 for (int i
= 0; i
< 8; i
++) {
139 bank
->sectors
[i
].offset
= offset
;
140 bank
->sectors
[i
].size
= 8 * 1024;
141 offset
+= bank
->sectors
[i
].size
;
142 bank
->sectors
[i
].is_erased
= -1;
143 bank
->sectors
[i
].is_protected
= 1;
145 for (int i
= 8; i
< 10; i
++) {
146 bank
->sectors
[i
].offset
= offset
;
147 bank
->sectors
[i
].size
= 64 * 1024;
148 offset
+= bank
->sectors
[i
].size
;
149 bank
->sectors
[i
].is_erased
= -1;
150 bank
->sectors
[i
].is_protected
= 1;
152 for (int i
= 10; i
< 18; i
++) {
153 bank
->sectors
[i
].offset
= offset
;
154 bank
->sectors
[i
].size
= 8 * 1024;
155 offset
+= bank
->sectors
[i
].size
;
156 bank
->sectors
[i
].is_erased
= -1;
157 bank
->sectors
[i
].is_protected
= 1;
160 LOG_ERROR("BUG: unknown bank->size encountered");
163 } else if (lpc2000_info
->variant
== lpc2000_v2
) {
164 /* variant 2 has a uniform layout, only number of sectors differs */
165 switch (bank
->size
) {
167 lpc2000_info
->cmd51_max_buffer
= 1024;
168 bank
->num_sectors
= 1;
171 lpc2000_info
->cmd51_max_buffer
= 1024;
172 bank
->num_sectors
= 2;
175 bank
->num_sectors
= 4;
178 bank
->num_sectors
= 8;
181 bank
->num_sectors
= 9;
184 bank
->num_sectors
= 11;
187 bank
->num_sectors
= 15;
190 bank
->num_sectors
= 27;
194 bank
->num_sectors
= 28;
197 LOG_ERROR("BUG: unknown bank->size encountered");
202 bank
->sectors
= malloc(sizeof(struct flash_sector
) * bank
->num_sectors
);
204 for (int i
= 0; i
< bank
->num_sectors
; i
++) {
206 bank
->sectors
[i
].offset
= offset
;
207 bank
->sectors
[i
].size
= 4 * 1024;
208 offset
+= bank
->sectors
[i
].size
;
209 bank
->sectors
[i
].is_erased
= -1;
210 bank
->sectors
[i
].is_protected
= 1;
212 bank
->sectors
[i
].offset
= offset
;
213 bank
->sectors
[i
].size
= 32 * 1024;
214 offset
+= bank
->sectors
[i
].size
;
215 bank
->sectors
[i
].is_erased
= -1;
216 bank
->sectors
[i
].is_protected
= 1;
218 bank
->sectors
[i
].offset
= offset
;
219 bank
->sectors
[i
].size
= 4 * 1024;
220 offset
+= bank
->sectors
[i
].size
;
221 bank
->sectors
[i
].is_erased
= -1;
222 bank
->sectors
[i
].is_protected
= 1;
225 } else if (lpc2000_info
->variant
== lpc1700
) {
226 switch (bank
->size
) {
228 bank
->num_sectors
= 8;
231 bank
->num_sectors
= 16;
234 bank
->num_sectors
= 18;
237 bank
->num_sectors
= 22;
240 bank
->num_sectors
= 30;
243 LOG_ERROR("BUG: unknown bank->size encountered");
247 bank
->sectors
= malloc(sizeof(struct flash_sector
) * bank
->num_sectors
);
249 for (int i
= 0; i
< bank
->num_sectors
; i
++) {
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;
257 } else if (lpc2000_info
->variant
== lpc4300
) {
258 switch (bank
->size
) {
260 bank
->num_sectors
= 11;
263 bank
->num_sectors
= 13;
266 bank
->num_sectors
= 15;
269 LOG_ERROR("BUG: unknown bank->size encountered");
273 bank
->sectors
= malloc(sizeof(struct flash_sector
) * bank
->num_sectors
);
275 for (int i
= 0; i
< bank
->num_sectors
; i
++) {
276 bank
->sectors
[i
].offset
= offset
;
277 /* sectors 0-7 are 8kB-sized, 8 and above are 64kB-sized for LPC43xx devices */
278 bank
->sectors
[i
].size
= (i
< 8) ? 8 * 1024 : 64 * 1024;
279 offset
+= bank
->sectors
[i
].size
;
280 bank
->sectors
[i
].is_erased
= -1;
281 bank
->sectors
[i
].is_protected
= 1;
284 LOG_ERROR("BUG: unknown lpc2000_info->variant encountered");
291 /* this function allocates and initializes working area used for IAP algorithm
292 * uses 52 + max IAP stack bytes working area
293 * 0x0 to 0x7: jump gate (BX to thumb state, b -2 to wait)
294 * 0x8 to 0x1f: command parameter table (1+5 words)
295 * 0x20 to 0x33: command result table (1+4 words)
296 * 0x34 to 0xb3|0x104: stack (only 128b needed for lpc17xx/2000, 208 for lpc43xx)
299 static int lpc2000_iap_working_area_init(struct flash_bank
*bank
, struct working_area
**iap_working_area
)
301 struct target
*target
= bank
->target
;
302 struct lpc2000_flash_bank
*lpc2000_info
= bank
->driver_priv
;
304 if (target_alloc_working_area(target
, 0x34 + lpc2000_info
->iap_max_stack
, iap_working_area
) != ERROR_OK
) {
305 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
306 return ERROR_FLASH_OPERATION_FAILED
;
309 uint8_t jump_gate
[8];
311 /* write IAP code to working area */
312 switch (lpc2000_info
->variant
) {
315 target_buffer_set_u32(target
, jump_gate
, ARMV4_5_T_BX(12));
316 target_buffer_set_u32(target
, jump_gate
+ 4, ARMV5_T_BKPT(0));
320 target_buffer_set_u32(target
, jump_gate
, ARMV4_5_BX(12));
321 target_buffer_set_u32(target
, jump_gate
+ 4, ARMV4_5_B(0xfffffe, 0));
324 LOG_ERROR("BUG: unknown lpc2000_info->variant encountered");
328 int retval
= target_write_memory(target
, (*iap_working_area
)->address
, 4, 2, jump_gate
);
329 if (retval
!= ERROR_OK
)
330 LOG_ERROR("Write memory at address 0x%8.8" PRIx32
" failed (check work_area definition)",
331 (*iap_working_area
)->address
);
336 /* call LPC1700/LPC2000 IAP function */
338 static int lpc2000_iap_call(struct flash_bank
*bank
, struct working_area
*iap_working_area
, int code
,
339 uint32_t param_table
[5], uint32_t result_table
[4])
341 struct lpc2000_flash_bank
*lpc2000_info
= bank
->driver_priv
;
342 struct target
*target
= bank
->target
;
344 struct arm_algorithm arm_algo
; /* for LPC2000 */
345 struct armv7m_algorithm armv7m_info
; /* for LPC1700 */
346 uint32_t iap_entry_point
= 0; /* to make compiler happier */
348 switch (lpc2000_info
->variant
) {
350 armv7m_info
.common_magic
= ARMV7M_COMMON_MAGIC
;
351 armv7m_info
.core_mode
= ARM_MODE_THREAD
;
352 iap_entry_point
= 0x1fff1ff1;
356 arm_algo
.common_magic
= ARM_COMMON_MAGIC
;
357 arm_algo
.core_mode
= ARM_MODE_SVC
;
358 arm_algo
.core_state
= ARM_STATE_ARM
;
359 iap_entry_point
= 0x7ffffff1;
362 armv7m_info
.common_magic
= ARMV7M_COMMON_MAGIC
;
363 armv7m_info
.core_mode
= ARM_MODE_THREAD
;
364 /* read out IAP entry point from ROM driver table at 0x10400100 */
365 target_read_u32(target
, 0x10400100, &iap_entry_point
);
368 LOG_ERROR("BUG: unknown lpc2000->variant encountered");
372 struct mem_param mem_params
[2];
374 /* command parameter table */
375 init_mem_param(&mem_params
[0], iap_working_area
->address
+ 8, 6 * 4, PARAM_OUT
);
376 target_buffer_set_u32(target
, mem_params
[0].value
, code
);
377 target_buffer_set_u32(target
, mem_params
[0].value
+ 0x04, param_table
[0]);
378 target_buffer_set_u32(target
, mem_params
[0].value
+ 0x08, param_table
[1]);
379 target_buffer_set_u32(target
, mem_params
[0].value
+ 0x0c, param_table
[2]);
380 target_buffer_set_u32(target
, mem_params
[0].value
+ 0x10, param_table
[3]);
381 target_buffer_set_u32(target
, mem_params
[0].value
+ 0x14, param_table
[4]);
383 struct reg_param reg_params
[5];
385 init_reg_param(®_params
[0], "r0", 32, PARAM_OUT
);
386 buf_set_u32(reg_params
[0].value
, 0, 32, iap_working_area
->address
+ 0x08);
388 /* command result table */
389 init_mem_param(&mem_params
[1], iap_working_area
->address
+ 0x20, 5 * 4, PARAM_IN
);
391 init_reg_param(®_params
[1], "r1", 32, PARAM_OUT
);
392 buf_set_u32(reg_params
[1].value
, 0, 32, iap_working_area
->address
+ 0x20);
394 /* IAP entry point */
395 init_reg_param(®_params
[2], "r12", 32, PARAM_OUT
);
396 buf_set_u32(reg_params
[2].value
, 0, 32, iap_entry_point
);
398 switch (lpc2000_info
->variant
) {
402 init_reg_param(®_params
[3], "sp", 32, PARAM_OUT
);
403 buf_set_u32(reg_params
[3].value
, 0, 32, iap_working_area
->address
+ lpc2000_info
->cmd51_src_offset
);
406 init_reg_param(®_params
[4], "lr", 32, PARAM_OUT
);
407 buf_set_u32(reg_params
[4].value
, 0, 32, (iap_working_area
->address
+ 0x04) | 1);
408 /* bit0 of LR = 1 to return in Thumb mode */
410 target_run_algorithm(target
, 2, mem_params
, 5, reg_params
, iap_working_area
->address
, 0, 10000,
416 init_reg_param(®_params
[3], "sp_svc", 32, PARAM_OUT
);
417 buf_set_u32(reg_params
[3].value
, 0, 32, iap_working_area
->address
+ lpc2000_info
->cmd51_src_offset
);
420 init_reg_param(®_params
[4], "lr_svc", 32, PARAM_OUT
);
421 buf_set_u32(reg_params
[4].value
, 0, 32, iap_working_area
->address
+ 0x04);
423 target_run_algorithm(target
, 2, mem_params
, 5, reg_params
, iap_working_area
->address
,
424 iap_working_area
->address
+ 0x4, 10000, &arm_algo
);
427 LOG_ERROR("BUG: unknown lpc2000->variant encountered");
431 int status_code
= target_buffer_get_u32(target
, mem_params
[1].value
);
432 result_table
[0] = target_buffer_get_u32(target
, mem_params
[1].value
+ 0x04);
433 result_table
[1] = target_buffer_get_u32(target
, mem_params
[1].value
+ 0x08);
434 result_table
[2] = target_buffer_get_u32(target
, mem_params
[1].value
+ 0x0c);
435 result_table
[3] = target_buffer_get_u32(target
, mem_params
[1].value
+ 0x10);
437 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
438 ") completed with result = %8.8" PRIx32
,
439 code
, param_table
[0], param_table
[1], param_table
[2], param_table
[3], param_table
[4], status_code
);
441 destroy_mem_param(&mem_params
[0]);
442 destroy_mem_param(&mem_params
[1]);
444 destroy_reg_param(®_params
[0]);
445 destroy_reg_param(®_params
[1]);
446 destroy_reg_param(®_params
[2]);
447 destroy_reg_param(®_params
[3]);
448 destroy_reg_param(®_params
[4]);
453 static int lpc2000_iap_blank_check(struct flash_bank
*bank
, int first
, int last
)
455 if ((first
< 0) || (last
>= bank
->num_sectors
))
456 return ERROR_FLASH_SECTOR_INVALID
;
458 uint32_t param_table
[5] = {0};
459 uint32_t result_table
[4];
460 struct working_area
*iap_working_area
;
462 int retval
= lpc2000_iap_working_area_init(bank
, &iap_working_area
);
464 if (retval
!= ERROR_OK
)
467 struct lpc2000_flash_bank
*lpc2000_info
= bank
->driver_priv
;
468 if (lpc2000_info
->variant
== lpc4300
)
469 param_table
[2] = lpc2000_info
->lpc4300_bank
;
471 for (int i
= first
; i
<= last
&& retval
== ERROR_OK
; i
++) {
472 /* check single sector */
473 param_table
[0] = param_table
[1] = i
;
474 int status_code
= lpc2000_iap_call(bank
, iap_working_area
, 53, param_table
, result_table
);
476 switch (status_code
) {
477 case ERROR_FLASH_OPERATION_FAILED
:
478 retval
= ERROR_FLASH_OPERATION_FAILED
;
480 case LPC2000_CMD_SUCCESS
:
481 bank
->sectors
[i
].is_erased
= 1;
483 case LPC2000_SECTOR_NOT_BLANK
:
484 bank
->sectors
[i
].is_erased
= 0;
486 case LPC2000_INVALID_SECTOR
:
487 bank
->sectors
[i
].is_erased
= 0;
490 retval
= ERROR_FLASH_BUSY
;
493 LOG_ERROR("BUG: unknown LPC2000 status code %i", status_code
);
498 struct target
*target
= bank
->target
;
499 target_free_working_area(target
, iap_working_area
);
505 * flash bank lpc2000 <base> <size> 0 0 <target#> <lpc_variant> <cclk> [calc_checksum]
507 FLASH_BANK_COMMAND_HANDLER(lpc2000_flash_bank_command
)
510 return ERROR_COMMAND_SYNTAX_ERROR
;
512 struct lpc2000_flash_bank
*lpc2000_info
= malloc(sizeof(struct lpc2000_flash_bank
));
513 bank
->driver_priv
= lpc2000_info
;
515 if (strcmp(CMD_ARGV
[6], "lpc2000_v1") == 0) {
516 lpc2000_info
->variant
= lpc2000_v1
;
517 lpc2000_info
->cmd51_dst_boundary
= 512;
518 lpc2000_info
->cmd51_can_256b
= 0;
519 lpc2000_info
->cmd51_can_8192b
= 1;
520 lpc2000_info
->checksum_vector
= 5;
521 lpc2000_info
->iap_max_stack
= 128;
522 } else if (strcmp(CMD_ARGV
[6], "lpc2000_v2") == 0) {
523 lpc2000_info
->variant
= lpc2000_v2
;
524 lpc2000_info
->cmd51_dst_boundary
= 256;
525 lpc2000_info
->cmd51_can_256b
= 1;
526 lpc2000_info
->cmd51_can_8192b
= 0;
527 lpc2000_info
->checksum_vector
= 5;
528 lpc2000_info
->iap_max_stack
= 128;
529 } else if (strcmp(CMD_ARGV
[6], "lpc1700") == 0) {
530 lpc2000_info
->variant
= lpc1700
;
531 lpc2000_info
->cmd51_dst_boundary
= 256;
532 lpc2000_info
->cmd51_can_256b
= 1;
533 lpc2000_info
->cmd51_can_8192b
= 0;
534 lpc2000_info
->checksum_vector
= 7;
535 lpc2000_info
->iap_max_stack
= 128;
536 } else if (strcmp(CMD_ARGV
[6], "lpc1800") == 0 || strcmp(CMD_ARGV
[6], "lpc4300") == 0) {
537 lpc2000_info
->variant
= lpc4300
;
538 lpc2000_info
->cmd51_dst_boundary
= 512;
539 lpc2000_info
->cmd51_can_256b
= 0;
540 lpc2000_info
->cmd51_can_8192b
= 0;
541 lpc2000_info
->checksum_vector
= 7;
542 lpc2000_info
->iap_max_stack
= 208;
544 LOG_ERROR("unknown LPC2000 variant: %s", CMD_ARGV
[6]);
546 return ERROR_FLASH_BANK_INVALID
;
549 /* see lpc2000_iap_working_area_init() for the reason behind the 0x34 value */
550 lpc2000_info
->cmd51_src_offset
= 0x34 + lpc2000_info
->iap_max_stack
;
552 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[7], lpc2000_info
->cclk
);
553 lpc2000_info
->calc_checksum
= 0;
554 lpc2000_build_sector_list(bank
);
556 uint32_t temp_base
= 0;
557 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[1], temp_base
);
558 if (temp_base
>= 0x1B000000)
559 lpc2000_info
->lpc4300_bank
= 1; /* bank B */
561 lpc2000_info
->lpc4300_bank
= 0; /* bank A */
564 if (strcmp(CMD_ARGV
[8], "calc_checksum") == 0)
565 lpc2000_info
->calc_checksum
= 1;
571 static int lpc2000_erase(struct flash_bank
*bank
, int first
, int last
)
573 if (bank
->target
->state
!= TARGET_HALTED
) {
574 LOG_ERROR("Target not halted");
575 return ERROR_TARGET_NOT_HALTED
;
578 struct lpc2000_flash_bank
*lpc2000_info
= bank
->driver_priv
;
579 uint32_t param_table
[5] = {0};
581 param_table
[0] = first
;
582 param_table
[1] = last
;
584 if (lpc2000_info
->variant
== lpc4300
)
585 param_table
[2] = lpc2000_info
->lpc4300_bank
;
587 param_table
[2] = lpc2000_info
->cclk
;
589 uint32_t result_table
[4];
590 struct working_area
*iap_working_area
;
592 int retval
= lpc2000_iap_working_area_init(bank
, &iap_working_area
);
594 if (retval
!= ERROR_OK
)
597 /* Prepare sectors */
598 int status_code
= lpc2000_iap_call(bank
, iap_working_area
, 50, param_table
, result_table
);
599 switch (status_code
) {
600 case ERROR_FLASH_OPERATION_FAILED
:
601 retval
= ERROR_FLASH_OPERATION_FAILED
;
603 case LPC2000_CMD_SUCCESS
:
605 case LPC2000_INVALID_SECTOR
:
606 retval
= ERROR_FLASH_SECTOR_INVALID
;
609 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code
);
610 retval
= ERROR_FLASH_OPERATION_FAILED
;
614 if (retval
== ERROR_OK
) {
616 param_table
[2] = lpc2000_info
->cclk
;
617 if (lpc2000_info
->variant
== lpc4300
)
618 param_table
[3] = lpc2000_info
->lpc4300_bank
;
620 status_code
= lpc2000_iap_call(bank
, iap_working_area
, 52, param_table
, result_table
);
621 switch (status_code
) {
622 case ERROR_FLASH_OPERATION_FAILED
:
623 retval
= ERROR_FLASH_OPERATION_FAILED
;
625 case LPC2000_CMD_SUCCESS
:
627 case LPC2000_INVALID_SECTOR
:
628 retval
= ERROR_FLASH_SECTOR_INVALID
;
631 LOG_WARNING("lpc2000 erase sectors returned %i", status_code
);
632 retval
= ERROR_FLASH_OPERATION_FAILED
;
637 struct target
*target
= bank
->target
;
638 target_free_working_area(target
, iap_working_area
);
643 static int lpc2000_protect(struct flash_bank
*bank
, int set
, int first
, int last
)
645 /* can't protect/unprotect on the lpc2000 */
649 static int lpc2000_write(struct flash_bank
*bank
, uint8_t *buffer
, uint32_t offset
, uint32_t count
)
651 struct target
*target
= bank
->target
;
653 if (bank
->target
->state
!= TARGET_HALTED
) {
654 LOG_ERROR("Target not halted");
655 return ERROR_TARGET_NOT_HALTED
;
658 if (offset
+ count
> bank
->size
)
659 return ERROR_FLASH_DST_OUT_OF_BANK
;
661 struct lpc2000_flash_bank
*lpc2000_info
= bank
->driver_priv
;
663 uint32_t dst_min_alignment
= lpc2000_info
->cmd51_dst_boundary
;
665 if (offset
% dst_min_alignment
) {
666 LOG_WARNING("offset 0x%" PRIx32
" breaks required alignment 0x%" PRIx32
, offset
, dst_min_alignment
);
667 return ERROR_FLASH_DST_BREAKS_ALIGNMENT
;
670 int first_sector
= 0;
673 for (int i
= 0; i
< bank
->num_sectors
; i
++) {
674 if (offset
>= bank
->sectors
[i
].offset
)
676 if (offset
+ DIV_ROUND_UP(count
, dst_min_alignment
) * dst_min_alignment
> bank
->sectors
[i
].offset
)
680 LOG_DEBUG("first_sector: %i, last_sector: %i", first_sector
, last_sector
);
682 /* check if exception vectors should be flashed */
683 if ((offset
== 0) && (count
>= 0x20) && lpc2000_info
->calc_checksum
) {
684 uint32_t checksum
= 0;
685 for (int i
= 0; i
< 8; i
++) {
686 LOG_DEBUG("Vector 0x%2.2x: 0x%8.8" PRIx32
, i
* 4, buf_get_u32(buffer
+ (i
* 4), 0, 32));
687 if (i
!= lpc2000_info
->checksum_vector
)
688 checksum
+= buf_get_u32(buffer
+ (i
* 4), 0, 32);
690 checksum
= 0 - checksum
;
691 LOG_DEBUG("checksum: 0x%8.8" PRIx32
, checksum
);
693 uint32_t original_value
= buf_get_u32(buffer
+ (lpc2000_info
->checksum_vector
* 4), 0, 32);
694 if (original_value
!= checksum
) {
695 LOG_WARNING("Verification will fail since checksum in image (0x%8.8" PRIx32
") to be written to flash is "
696 "different from calculated vector checksum (0x%8.8" PRIx32
").", original_value
, checksum
);
697 LOG_WARNING("To remove this warning modify build tools on developer PC to inject correct LPC vector "
701 buf_set_u32(buffer
+ (lpc2000_info
->checksum_vector
* 4), 0, 32, checksum
);
704 struct working_area
*iap_working_area
;
706 int retval
= lpc2000_iap_working_area_init(bank
, &iap_working_area
);
708 if (retval
!= ERROR_OK
)
711 struct working_area
*download_area
;
713 /* allocate a working area */
714 if (target_alloc_working_area(target
, lpc2000_info
->cmd51_max_buffer
, &download_area
) != ERROR_OK
) {
715 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
716 target_free_working_area(target
, iap_working_area
);
717 return ERROR_FLASH_OPERATION_FAILED
;
720 uint32_t bytes_remaining
= count
;
721 uint32_t bytes_written
= 0;
722 uint32_t param_table
[5] = {0};
723 uint32_t result_table
[4];
725 while (bytes_remaining
> 0) {
726 uint32_t thisrun_bytes
;
727 if (bytes_remaining
>= lpc2000_info
->cmd51_max_buffer
)
728 thisrun_bytes
= lpc2000_info
->cmd51_max_buffer
;
729 else if (bytes_remaining
>= 1024)
730 thisrun_bytes
= 1024;
731 else if ((bytes_remaining
>= 512) || (!lpc2000_info
->cmd51_can_256b
))
736 /* Prepare sectors */
737 param_table
[0] = first_sector
;
738 param_table
[1] = last_sector
;
740 if (lpc2000_info
->variant
== lpc4300
)
741 param_table
[2] = lpc2000_info
->lpc4300_bank
;
743 param_table
[2] = lpc2000_info
->cclk
;
745 int status_code
= lpc2000_iap_call(bank
, iap_working_area
, 50, param_table
, result_table
);
746 switch (status_code
) {
747 case ERROR_FLASH_OPERATION_FAILED
:
748 retval
= ERROR_FLASH_OPERATION_FAILED
;
750 case LPC2000_CMD_SUCCESS
:
752 case LPC2000_INVALID_SECTOR
:
753 retval
= ERROR_FLASH_SECTOR_INVALID
;
756 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code
);
757 retval
= ERROR_FLASH_OPERATION_FAILED
;
761 /* Exit if error occured */
762 if (retval
!= ERROR_OK
)
765 if (bytes_remaining
>= thisrun_bytes
) {
766 retval
= target_write_buffer(bank
->target
, download_area
->address
, thisrun_bytes
, buffer
+ bytes_written
);
767 if (retval
!= ERROR_OK
) {
768 retval
= ERROR_FLASH_OPERATION_FAILED
;
772 uint8_t *last_buffer
= malloc(thisrun_bytes
);
773 memcpy(last_buffer
, buffer
+ bytes_written
, bytes_remaining
);
774 memset(last_buffer
+ bytes_remaining
, 0xff, thisrun_bytes
- bytes_remaining
);
775 target_write_buffer(bank
->target
, download_area
->address
, thisrun_bytes
, last_buffer
);
779 LOG_DEBUG("writing 0x%" PRIx32
" bytes to address 0x%" PRIx32
, thisrun_bytes
,
780 bank
->base
+ offset
+ bytes_written
);
783 param_table
[0] = bank
->base
+ offset
+ bytes_written
;
784 param_table
[1] = download_area
->address
;
785 param_table
[2] = thisrun_bytes
;
786 param_table
[3] = lpc2000_info
->cclk
;
787 status_code
= lpc2000_iap_call(bank
, iap_working_area
, 51, param_table
, result_table
);
788 switch (status_code
) {
789 case ERROR_FLASH_OPERATION_FAILED
:
790 retval
= ERROR_FLASH_OPERATION_FAILED
;
792 case LPC2000_CMD_SUCCESS
:
794 case LPC2000_INVALID_SECTOR
:
795 retval
= ERROR_FLASH_SECTOR_INVALID
;
798 LOG_WARNING("lpc2000 returned %i", status_code
);
799 retval
= ERROR_FLASH_OPERATION_FAILED
;
803 /* Exit if error occured */
804 if (retval
!= ERROR_OK
)
807 if (bytes_remaining
> thisrun_bytes
)
808 bytes_remaining
-= thisrun_bytes
;
811 bytes_written
+= thisrun_bytes
;
814 target_free_working_area(target
, iap_working_area
);
815 target_free_working_area(target
, download_area
);
820 static int lpc2000_probe(struct flash_bank
*bank
)
822 /* we can't probe on an lpc2000 if this is an lpc2xxx, it has the configured flash */
826 static int lpc2000_erase_check(struct flash_bank
*bank
)
828 if (bank
->target
->state
!= TARGET_HALTED
) {
829 LOG_ERROR("Target not halted");
830 return ERROR_TARGET_NOT_HALTED
;
833 return lpc2000_iap_blank_check(bank
, 0, bank
->num_sectors
- 1);
836 static int lpc2000_protect_check(struct flash_bank
*bank
)
838 /* sectors are always protected */
842 static int get_lpc2000_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
844 struct lpc2000_flash_bank
*lpc2000_info
= bank
->driver_priv
;
846 snprintf(buf
, buf_size
, "lpc2000 flash driver variant: %i, clk: %" PRIi32
"kHz", lpc2000_info
->variant
,
852 COMMAND_HANDLER(lpc2000_handle_part_id_command
)
855 return ERROR_COMMAND_SYNTAX_ERROR
;
857 struct flash_bank
*bank
;
858 int retval
= CALL_COMMAND_HANDLER(flash_command_get_bank
, 0, &bank
);
859 if (ERROR_OK
!= retval
)
862 if (bank
->target
->state
!= TARGET_HALTED
) {
863 LOG_ERROR("Target not halted");
864 return ERROR_TARGET_NOT_HALTED
;
867 uint32_t param_table
[5] = {0};
868 uint32_t result_table
[4];
869 struct working_area
*iap_working_area
;
871 retval
= lpc2000_iap_working_area_init(bank
, &iap_working_area
);
873 if (retval
!= ERROR_OK
)
876 int status_code
= lpc2000_iap_call(bank
, iap_working_area
, 54, param_table
, result_table
);
877 if (status_code
!= 0x0) {
878 if (status_code
== ERROR_FLASH_OPERATION_FAILED
) {
879 command_print(CMD_CTX
, "no sufficient working area specified, can't access LPC2000 IAP interface");
881 command_print(CMD_CTX
, "lpc2000 IAP returned status code %i", status_code
);
883 command_print(CMD_CTX
, "lpc2000 part id: 0x%8.8" PRIx32
, result_table
[0]);
888 static const struct command_registration lpc2000_exec_command_handlers
[] = {
891 .handler
= lpc2000_handle_part_id_command
,
892 .mode
= COMMAND_EXEC
,
893 .help
= "print part id of lpc2000 flash bank <num>",
896 COMMAND_REGISTRATION_DONE
898 static const struct command_registration lpc2000_command_handlers
[] = {
902 .help
= "lpc2000 flash command group",
904 .chain
= lpc2000_exec_command_handlers
,
906 COMMAND_REGISTRATION_DONE
909 struct flash_driver lpc2000_flash
= {
911 .commands
= lpc2000_command_handlers
,
912 .flash_bank_command
= lpc2000_flash_bank_command
,
913 .erase
= lpc2000_erase
,
914 .protect
= lpc2000_protect
,
915 .write
= lpc2000_write
,
916 .read
= default_flash_read
,
917 .probe
= lpc2000_probe
,
918 .auto_probe
= lpc2000_probe
,
919 .erase_check
= lpc2000_erase_check
,
920 .protect_check
= lpc2000_protect_check
,
921 .info
= get_lpc2000_info
,