1 /***************************************************************************
3 * Copyright (C) 2018 by Bohdan Tymkiv *
4 * bohdan.tymkiv@cypress.com bohdan200@gmail.com *
6 * This program is free software; you can redistribute it and/or modify *
7 * it under the terms of the GNU General Public License as published by *
8 * the Free Software Foundation; either version 2 of the License, or *
9 * (at your option) any later version. *
11 * This program is distributed in the hope that it will be useful, *
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
14 * GNU General Public License for more details. *
16 * You should have received a copy of the GNU General Public License *
17 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
18 ***************************************************************************/
27 #include "target/target.h"
28 #include "target/cortex_m.h"
29 #include "target/breakpoints.h"
30 #include "target/target_type.h"
31 #include "time_support.h"
32 #include "target/algorithm.h"
34 /**************************************************************************************************
35 * PSoC6 device definitions
36 *************************************************************************************************/
37 #define MFLASH_SECTOR_SIZE (256u * 1024u)
38 #define WFLASH_SECTOR_SIZE (32u * 1024u)
40 #define MEM_BASE_MFLASH 0x10000000u
41 #define MEM_BASE_WFLASH 0x14000000u
42 #define MEM_WFLASH_SIZE 32768u
43 #define MEM_BASE_SFLASH 0x16000000u
44 #define RAM_STACK_WA_SIZE 2048u
45 #define PSOC6_SPCIF_GEOMETRY 0x4025F00Cu
47 #define PROTECTION_UNKNOWN 0x00u
48 #define PROTECTION_VIRGIN 0x01u
49 #define PROTECTION_NORMAL 0x02u
50 #define PROTECTION_SECURE 0x03u
51 #define PROTECTION_DEAD 0x04u
53 #define MEM_BASE_IPC 0x40230000u
54 #define IPC_STRUCT_SIZE 0x20u
55 #define MEM_IPC(n) (MEM_BASE_IPC + (n) * IPC_STRUCT_SIZE)
56 #define MEM_IPC_ACQUIRE(n) (MEM_IPC(n) + 0x00u)
57 #define MEM_IPC_NOTIFY(n) (MEM_IPC(n) + 0x08u)
58 #define MEM_IPC_DATA(n) (MEM_IPC(n) + 0x0Cu)
59 #define MEM_IPC_LOCK_STATUS(n) (MEM_IPC(n) + 0x10u)
61 #define MEM_BASE_IPC_INTR 0x40231000u
62 #define IPC_INTR_STRUCT_SIZE 0x20u
63 #define MEM_IPC_INTR(n) (MEM_BASE_IPC_INTR + (n) * IPC_INTR_STRUCT_SIZE)
64 #define MEM_IPC_INTR_MASK(n) (MEM_IPC_INTR(n) + 0x08u)
65 #define IPC_ACQUIRE_SUCCESS_MSK 0x80000000u
66 #define IPC_LOCK_ACQUIRED_MSK 0x80000000u
69 #define IPC_INTR_ID 0u
70 #define IPC_TIMEOUT_MS 1000
72 #define SROMAPI_SIID_REQ 0x00000001u
73 #define SROMAPI_SIID_REQ_FAMILY_REVISION (SROMAPI_SIID_REQ | 0x000u)
74 #define SROMAPI_SIID_REQ_SIID_PROTECTION (SROMAPI_SIID_REQ | 0x100u)
75 #define SROMAPI_WRITEROW_REQ 0x05000100u
76 #define SROMAPI_PROGRAMROW_REQ 0x06000100u
77 #define SROMAPI_ERASESECTOR_REQ 0x14000100u
78 #define SROMAPI_ERASEALL_REQ 0x0A000100u
79 #define SROMAPI_ERASEROW_REQ 0x1C000100u
81 #define SROMAPI_STATUS_MSK 0xF0000000u
82 #define SROMAPI_STAT_SUCCESS 0xA0000000u
83 #define SROMAPI_DATA_LOCATION_MSK 0x00000001u
84 #define SROMAPI_CALL_TIMEOUT_MS 1500
86 struct psoc6_target_info
{
89 uint32_t main_flash_sz
;
104 static const struct row_region safe_sflash_regions
[] = {
105 {0x16000800, 0x800}, /* SFLASH: User Data */
106 {0x16001A00, 0x200}, /* SFLASH: NAR */
107 {0x16005A00, 0xC00}, /* SFLASH: Public Key */
108 {0x16007C00, 0x400}, /* SFLASH: TOC2 */
111 #define SFLASH_NUM_REGIONS ARRAY_SIZE(safe_sflash_regions)
113 static struct working_area
*g_stack_area
;
114 static struct armv7m_algorithm g_armv7m_info
;
116 /** ***********************************************************************************************
117 * @brief Initializes `struct timeout` structure with given timeout value
118 * @param to pointer to `struct timeout` structure
119 * @param timeout_ms timeout, in milliseconds
120 *************************************************************************************************/
121 static void timeout_init(struct timeout
*to
, long timeout_ms
)
123 to
->start_time
= timeval_ms();
124 to
->timeout_ms
= timeout_ms
;
127 /** ***********************************************************************************************
128 * @brief Returns true if given `struct timeout` structure has expired
129 * @param to pointer to `struct timeout` structure
130 * @return true if timeout expired
131 *************************************************************************************************/
132 static bool timeout_expired(struct timeout
*to
)
134 return (timeval_ms() - to
->start_time
) > to
->timeout_ms
;
137 /** ***********************************************************************************************
138 * @brief Starts pseudo flash algorithm and leaves it running. Function allocates working area for
139 * algorithm code and CPU stack, adjusts stack pointer, uploads and starts the algorithm.
140 * Algorithm (a basic infinite loop) runs asynchronously while driver performs Flash operations.
142 * @param target target for the algorithm
143 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
144 *************************************************************************************************/
145 static int sromalgo_prepare(struct target
*target
)
149 /* Initialize Vector Table Offset register (in case FW modified it) */
150 hr
= target_write_u32(target
, 0xE000ED08, 0x00000000);
154 /* Restore THUMB bit in xPSR register */
155 const struct armv7m_common
*cm
= target_to_armv7m(target
);
156 hr
= cm
->store_core_reg_u32(target
, ARMV7M_REGSEL_xPSR
, 0x01000000);
160 /* Allocate Working Area for Stack and Flash algorithm */
161 hr
= target_alloc_working_area(target
, RAM_STACK_WA_SIZE
, &g_stack_area
);
165 g_armv7m_info
.common_magic
= ARMV7M_COMMON_MAGIC
;
166 g_armv7m_info
.core_mode
= ARM_MODE_THREAD
;
168 struct reg_param reg_params
;
169 init_reg_param(®_params
, "sp", 32, PARAM_OUT
);
170 buf_set_u32(reg_params
.value
, 0, 32, g_stack_area
->address
+ g_stack_area
->size
);
172 /* Write basic infinite loop algorithm to target RAM */
173 hr
= target_write_u32(target
, g_stack_area
->address
, 0xFEE7FEE7);
175 goto destroy_rp_free_wa
;
177 hr
= target_start_algorithm(target
, 0, NULL
, 1, ®_params
, g_stack_area
->address
,
180 goto destroy_rp_free_wa
;
182 destroy_reg_param(®_params
);
187 /* Something went wrong, do some cleanup */
188 destroy_reg_param(®_params
);
191 target_free_working_area(target
, g_stack_area
);
198 /** ***********************************************************************************************
199 * @brief Stops running flash algorithm and releases associated resources.
200 * This function is also used for cleanup in case of errors so g_stack_area may be NULL.
201 * These cases have to be handled gracefully.
203 * @param target current target
204 *************************************************************************************************/
205 static void sromalgo_release(struct target
*target
)
210 /* Stop flash algorithm if it is running */
211 if (target
->running_alg
) {
212 hr
= target_halt(target
);
216 hr
= target_wait_algorithm(target
, 0, NULL
, 0, NULL
, 0,
217 IPC_TIMEOUT_MS
, &g_armv7m_info
);
223 /* Free Stack/Flash algorithm working area */
224 target_free_working_area(target
, g_stack_area
);
229 /** ***********************************************************************************************
230 * @brief Waits for expected IPC lock status. PSoC6 uses IPC structures for inter-core
231 * communication. Same IPCs are used to invoke SROM API. IPC structure must be locked prior to
232 * invoking any SROM API. This ensures nothing else in the system will use same IPC thus corrupting
233 * our data. Locking is performed by ipc_acquire(), this function ensures that IPC is actually
236 * @param target current target
237 * @param ipc_id IPC index to poll. IPC #2 is dedicated for DAP access
238 * @param lock_expected expected lock status
239 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
240 *************************************************************************************************/
241 static int ipc_poll_lock_stat(struct target
*target
, uint32_t ipc_id
, bool lock_expected
)
247 timeout_init(&to
, IPC_TIMEOUT_MS
);
249 while (!timeout_expired(&to
)) {
250 /* Process any server requests */
253 /* Read IPC Lock status */
254 hr
= target_read_u32(target
, MEM_IPC_LOCK_STATUS(ipc_id
), ®_val
);
255 if (hr
!= ERROR_OK
) {
256 LOG_ERROR("Unable to read IPC Lock Status register");
260 bool is_locked
= (reg_val
& IPC_LOCK_ACQUIRED_MSK
) != 0;
262 if (lock_expected
== is_locked
)
266 if (target
->coreid
) {
267 LOG_WARNING("SROM API calls via CM4 target are supported on single-core PSoC6 devices only. "
268 "Please perform all Flash-related operations via CM0+ target on dual-core devices.");
271 LOG_ERROR("Timeout polling IPC Lock Status");
272 return ERROR_TARGET_TIMEOUT
;
275 /** ***********************************************************************************************
276 * @brief Acquires IPC structure. PSoC6 uses IPC structures for inter-core communication.
277 * Same IPCs are used to invoke SROM API. IPC structure must be locked prior to invoking any SROM API.
278 * This ensures nothing else in the system will use same IPC thus corrupting our data.
279 * This function locks the IPC.
281 * @param target current target
282 * @param ipc_id ipc_id IPC index to acquire. IPC #2 is dedicated for DAP access
283 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
284 *************************************************************************************************/
285 static int ipc_acquire(struct target
*target
, char ipc_id
)
288 bool is_acquired
= false;
292 timeout_init(&to
, IPC_TIMEOUT_MS
);
294 while (!timeout_expired(&to
)) {
297 hr
= target_write_u32(target
, MEM_IPC_ACQUIRE(ipc_id
), IPC_ACQUIRE_SUCCESS_MSK
);
298 if (hr
!= ERROR_OK
) {
299 LOG_ERROR("Unable to write to IPC Acquire register");
303 /* Check if data is written on first step */
304 hr
= target_read_u32(target
, MEM_IPC_ACQUIRE(ipc_id
), ®_val
);
305 if (hr
!= ERROR_OK
) {
306 LOG_ERROR("Unable to read IPC Acquire register");
310 is_acquired
= (reg_val
& IPC_ACQUIRE_SUCCESS_MSK
) != 0;
312 /* If IPC structure is acquired, the lock status should be set */
313 hr
= ipc_poll_lock_stat(target
, ipc_id
, true);
319 LOG_ERROR("Timeout acquiring IPC structure");
324 /** ***********************************************************************************************
325 * @brief Invokes SROM API functions which are responsible for Flash operations
327 * @param target current target
328 * @param req_and_params request id of the function to invoke
329 * @param working_area address of memory buffer in target's memory space for SROM API parameters
330 * @param data_out pointer to variable which will be populated with execution status
331 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
332 *************************************************************************************************/
333 static int call_sromapi(struct target
*target
,
334 uint32_t req_and_params
,
335 uint32_t working_area
,
340 bool is_data_in_ram
= (req_and_params
& SROMAPI_DATA_LOCATION_MSK
) == 0;
342 hr
= ipc_acquire(target
, IPC_ID
);
347 hr
= target_write_u32(target
, MEM_IPC_DATA(IPC_ID
), working_area
);
349 hr
= target_write_u32(target
, MEM_IPC_DATA(IPC_ID
), req_and_params
);
354 /* Enable notification interrupt of IPC_INTR_STRUCT0(CM0+) for IPC_STRUCT2 */
355 hr
= target_write_u32(target
, MEM_IPC_INTR_MASK(IPC_INTR_ID
), 1u << (16 + IPC_ID
));
359 hr
= target_write_u32(target
, MEM_IPC_NOTIFY(IPC_ID
), 1);
363 /* Poll lock status */
364 hr
= ipc_poll_lock_stat(target
, IPC_ID
, false);
370 hr
= target_read_u32(target
, working_area
, data_out
);
372 hr
= target_read_u32(target
, MEM_IPC_DATA(IPC_ID
), data_out
);
374 if (hr
!= ERROR_OK
) {
375 LOG_ERROR("Error reading SROM API Status location");
379 bool is_success
= (*data_out
& SROMAPI_STATUS_MSK
) == SROMAPI_STAT_SUCCESS
;
381 LOG_ERROR("SROM API execution failed. Status: 0x%08" PRIX32
, *data_out
);
382 return ERROR_TARGET_FAILURE
;
388 /** ***********************************************************************************************
389 * @brief Retrieves SiliconID and Protection status of the target device
390 * @param target current target
391 * @param si_id pointer to variable, will be populated with SiliconID
392 * @param protection pointer to variable, will be populated with protection status
393 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
394 *************************************************************************************************/
395 static int get_silicon_id(struct target
*target
, uint32_t *si_id
, uint8_t *protection
)
398 uint32_t family_rev
, siid_prot
;
400 hr
= sromalgo_prepare(target
);
404 /* Read FamilyID and Revision */
405 hr
= call_sromapi(target
, SROMAPI_SIID_REQ_FAMILY_REVISION
, 0, &family_rev
);
409 /* Read SiliconID and Protection */
410 hr
= call_sromapi(target
, SROMAPI_SIID_REQ_SIID_PROTECTION
, 0, &siid_prot
);
414 *si_id
= (siid_prot
& 0x0000FFFF) << 16;
415 *si_id
|= (family_rev
& 0x00FF0000) >> 8;
416 *si_id
|= (family_rev
& 0x000000FF) >> 0;
418 *protection
= (siid_prot
& 0x000F0000) >> 0x10;
421 sromalgo_release(target
);
425 /** ***********************************************************************************************
426 * @brief Translates Protection status to openocd-friendly boolean value
427 * @param bank current flash bank
428 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
429 *************************************************************************************************/
430 static int psoc6_protect_check(struct flash_bank
*bank
)
434 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
435 int hr
= get_silicon_id(bank
->target
, &psoc6_info
->silicon_id
, &psoc6_info
->protection
);
439 switch (psoc6_info
->protection
) {
440 case PROTECTION_VIRGIN
:
441 case PROTECTION_NORMAL
:
445 case PROTECTION_UNKNOWN
:
446 case PROTECTION_SECURE
:
447 case PROTECTION_DEAD
:
453 for (unsigned int i
= 0; i
< bank
->num_sectors
; i
++)
454 bank
->sectors
[i
].is_protected
= is_protected
;
459 /** ***********************************************************************************************
460 * @brief Dummy function, Life Cycle transition is not currently supported
461 * @return ERROR_OK always
462 *************************************************************************************************/
463 static int psoc6_protect(struct flash_bank
*bank
, int set
, unsigned int first
,
471 LOG_WARNING("Life Cycle transition for PSoC6 is not supported");
475 /** ***********************************************************************************************
476 * @brief Translates Protection status to string
477 * @param protection protection value
478 * @return pointer to const string describing protection status
479 *************************************************************************************************/
480 static const char *protection_to_str(uint8_t protection
)
482 switch (protection
) {
483 case PROTECTION_VIRGIN
:
485 case PROTECTION_NORMAL
:
487 case PROTECTION_SECURE
:
489 case PROTECTION_DEAD
:
491 case PROTECTION_UNKNOWN
:
497 /** ***********************************************************************************************
498 * @brief psoc6_get_info Displays human-readable information about acquired device
499 * @param bank current flash bank
500 * @param buf pointer to buffer for human-readable text
501 * @param buf_size size of the buffer
502 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
503 *************************************************************************************************/
504 static int psoc6_get_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
506 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
508 if (psoc6_info
->is_probed
== false)
511 int hr
= get_silicon_id(bank
->target
, &psoc6_info
->silicon_id
, &psoc6_info
->protection
);
515 snprintf(buf
, buf_size
,
516 "PSoC6 Silicon ID: 0x%08" PRIX32
"\n"
518 "Main Flash size: %" PRIu32
" kB\n"
519 "Work Flash size: 32 kB\n",
520 psoc6_info
->silicon_id
,
521 protection_to_str(psoc6_info
->protection
),
522 psoc6_info
->main_flash_sz
/ 1024);
527 /** ***********************************************************************************************
528 * @brief Checks if given flash bank belongs to Supervisory Flash
529 * @param bank current flash bank
530 * @return true if flash bank belongs to Supervisory Flash
531 *************************************************************************************************/
532 static bool is_sflash_bank(struct flash_bank
*bank
)
534 for (size_t i
= 0; i
< SFLASH_NUM_REGIONS
; i
++) {
535 if (bank
->base
== safe_sflash_regions
[i
].addr
)
542 /** ***********************************************************************************************
543 * @brief Checks if given flash bank belongs to Work Flash
544 * @param bank current flash bank
545 * @return true if flash bank belongs to Work Flash
546 *************************************************************************************************/
547 static inline bool is_wflash_bank(struct flash_bank
*bank
)
549 return (bank
->base
== MEM_BASE_WFLASH
);
552 /** ***********************************************************************************************
553 * @brief Checks if given flash bank belongs to Main Flash
554 * @param bank current flash bank
555 * @return true if flash bank belongs to Main Flash
556 *************************************************************************************************/
557 static inline bool is_mflash_bank(struct flash_bank
*bank
)
559 return (bank
->base
== MEM_BASE_MFLASH
);
562 /** ***********************************************************************************************
563 * @brief Probes the device and populates related data structures with target flash geometry data.
564 * This is done in non-intrusive way, no SROM API calls are involved so GDB can safely attach to a
565 * running target. Function assumes that size of Work Flash is 32kB (true for all current part numbers)
567 * @param bank current flash bank
568 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
569 *************************************************************************************************/
570 static int psoc6_probe(struct flash_bank
*bank
)
572 struct target
*target
= bank
->target
;
573 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
577 /* Retrieve data from SPCIF_GEOMETRY */
579 target_read_u32(target
, PSOC6_SPCIF_GEOMETRY
, &geom
);
580 uint32_t row_sz_lg2
= (geom
& 0xF0) >> 4;
581 uint32_t row_sz
= (0x01 << row_sz_lg2
);
582 uint32_t row_cnt
= 1 + ((geom
& 0x00FFFF00) >> 8);
583 uint32_t bank_cnt
= 1 + ((geom
& 0xFF000000) >> 24);
585 /* Calculate size of Main Flash*/
586 uint32_t flash_sz_bytes
= bank_cnt
* row_cnt
* row_sz
;
589 bank
->sectors
= NULL
;
591 size_t bank_size
= 0;
593 if (is_mflash_bank(bank
))
594 bank_size
= flash_sz_bytes
;
595 else if (is_wflash_bank(bank
))
596 bank_size
= MEM_WFLASH_SIZE
;
597 else if (is_sflash_bank(bank
)) {
598 for (size_t i
= 0; i
< SFLASH_NUM_REGIONS
; i
++) {
599 if (safe_sflash_regions
[i
].addr
== bank
->base
) {
600 bank_size
= safe_sflash_regions
[i
].size
;
606 if (bank_size
== 0) {
607 LOG_ERROR("Invalid Flash Bank base address in config file");
608 return ERROR_FLASH_BANK_INVALID
;
611 unsigned int num_sectors
= bank_size
/ row_sz
;
612 bank
->size
= bank_size
;
613 bank
->chip_width
= 4;
615 bank
->erased_value
= 0;
616 bank
->default_padded_value
= 0;
618 bank
->num_sectors
= num_sectors
;
619 bank
->sectors
= calloc(num_sectors
, sizeof(struct flash_sector
));
620 for (unsigned int i
= 0; i
< num_sectors
; i
++) {
621 bank
->sectors
[i
].size
= row_sz
;
622 bank
->sectors
[i
].offset
= i
* row_sz
;
623 bank
->sectors
[i
].is_erased
= -1;
624 bank
->sectors
[i
].is_protected
= -1;
627 psoc6_info
->is_probed
= true;
628 psoc6_info
->main_flash_sz
= flash_sz_bytes
;
629 psoc6_info
->row_sz
= row_sz
;
634 /** ***********************************************************************************************
635 * @brief Probes target device only if it hasn't been probed yet
636 * @param bank current flash bank
637 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
638 *************************************************************************************************/
639 static int psoc6_auto_probe(struct flash_bank
*bank
)
641 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
644 if (psoc6_info
->is_probed
)
647 hr
= psoc6_probe(bank
);
652 /** ***********************************************************************************************
653 * @brief Erases single sector (256k) on target device
654 * @param bank current flash bank
655 * @param wa working area for SROM API parameters
656 * @param addr starting address of the sector
657 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
658 *************************************************************************************************/
659 static int psoc6_erase_sector(struct flash_bank
*bank
, struct working_area
*wa
, uint32_t addr
)
661 struct target
*target
= bank
->target
;
663 LOG_DEBUG("Erasing SECTOR @%08" PRIX32
, addr
);
665 int hr
= target_write_u32(target
, wa
->address
, SROMAPI_ERASESECTOR_REQ
);
669 hr
= target_write_u32(target
, wa
->address
+ 0x04, addr
);
674 hr
= call_sromapi(target
, SROMAPI_ERASESECTOR_REQ
, wa
->address
, &data_out
);
676 LOG_ERROR("SECTOR @%08" PRIX32
" not erased!", addr
);
681 /** ***********************************************************************************************
682 * @brief Erases single row (512b) on target device
683 * @param bank current flash bank
684 * @param wa working area for SROM API parameters
685 * @param addr starting address of the flash row
686 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
687 *************************************************************************************************/
688 static int psoc6_erase_row(struct flash_bank
*bank
, struct working_area
*wa
, uint32_t addr
)
690 struct target
*target
= bank
->target
;
692 LOG_DEBUG("Erasing ROW @%08" PRIX32
, addr
);
694 int hr
= target_write_u32(target
, wa
->address
, SROMAPI_ERASEROW_REQ
);
698 hr
= target_write_u32(target
, wa
->address
+ 0x04, addr
);
703 hr
= call_sromapi(target
, SROMAPI_ERASEROW_REQ
, wa
->address
, &data_out
);
705 LOG_ERROR("ROW @%08" PRIX32
" not erased!", addr
);
710 /** ***********************************************************************************************
711 * @brief Performs Erase operation. Function will try to use biggest erase block possible to
712 * speedup the operation.
714 * @param bank current flash bank
715 * @param first first sector to erase
716 * @param last last sector to erase
717 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
718 *************************************************************************************************/
719 static int psoc6_erase(struct flash_bank
*bank
, unsigned int first
,
722 struct target
*target
= bank
->target
;
723 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
724 const uint32_t sector_size
= is_wflash_bank(bank
) ? WFLASH_SECTOR_SIZE
: MFLASH_SECTOR_SIZE
;
727 struct working_area
*wa
;
729 if (is_sflash_bank(bank
)) {
730 LOG_INFO("Erase operation on Supervisory Flash is not required, skipping");
734 hr
= sromalgo_prepare(target
);
738 hr
= target_alloc_working_area(target
, psoc6_info
->row_sz
+ 32, &wa
);
742 /* Number of rows in single sector */
743 const unsigned int rows_in_sector
= sector_size
/ psoc6_info
->row_sz
;
745 while (last
>= first
) {
746 /* Erase Sector if we are on sector boundary and erase size covers whole sector */
747 if ((first
% rows_in_sector
) == 0 &&
748 (last
- first
+ 1) >= rows_in_sector
) {
749 hr
= psoc6_erase_sector(bank
, wa
, bank
->base
+ first
* psoc6_info
->row_sz
);
753 for (unsigned int i
= first
; i
< first
+ rows_in_sector
; i
++)
754 bank
->sectors
[i
].is_erased
= 1;
756 first
+= rows_in_sector
;
758 /* Perform Row Erase otherwise */
759 hr
= psoc6_erase_row(bank
, wa
, bank
->base
+ first
* psoc6_info
->row_sz
);
763 bank
->sectors
[first
].is_erased
= 1;
769 target_free_working_area(target
, wa
);
771 sromalgo_release(target
);
775 /** ***********************************************************************************************
776 * @brief Programs single Flash Row
777 * @param bank current flash bank
778 * @param addr address of the flash row
779 * @param buffer pointer to the buffer with data
780 * @param is_sflash true if current flash bank belongs to Supervisory Flash
781 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
782 *************************************************************************************************/
783 static int psoc6_program_row(struct flash_bank
*bank
,
785 const uint8_t *buffer
,
788 struct target
*target
= bank
->target
;
789 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
790 struct working_area
*wa
;
791 const uint32_t sromapi_req
= is_sflash
? SROMAPI_WRITEROW_REQ
: SROMAPI_PROGRAMROW_REQ
;
795 LOG_DEBUG("Programming ROW @%08" PRIX32
, addr
);
797 hr
= target_alloc_working_area(target
, psoc6_info
->row_sz
+ 32, &wa
);
801 hr
= target_write_u32(target
, wa
->address
, sromapi_req
);
805 hr
= target_write_u32(target
,
811 hr
= target_write_u32(target
, wa
->address
+ 0x08, addr
);
815 hr
= target_write_u32(target
, wa
->address
+ 0x0C, wa
->address
+ 0x10);
819 hr
= target_write_buffer(target
, wa
->address
+ 0x10, psoc6_info
->row_sz
, buffer
);
823 hr
= call_sromapi(target
, sromapi_req
, wa
->address
, &data_out
);
826 target_free_working_area(target
, wa
);
832 /** ***********************************************************************************************
833 * @brief Performs Program operation
834 * @param bank current flash bank
835 * @param buffer pointer to the buffer with data
836 * @param offset starting offset in flash bank
837 * @param count number of bytes in buffer
838 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
839 *************************************************************************************************/
840 static int psoc6_program(struct flash_bank
*bank
,
841 const uint8_t *buffer
,
845 struct target
*target
= bank
->target
;
846 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
847 const bool is_sflash
= is_sflash_bank(bank
);
850 uint8_t page_buf
[psoc6_info
->row_sz
];
852 hr
= sromalgo_prepare(target
);
857 uint32_t row_offset
= offset
% psoc6_info
->row_sz
;
858 uint32_t aligned_addr
= bank
->base
+ offset
- row_offset
;
859 uint32_t row_bytes
= MIN(psoc6_info
->row_sz
- row_offset
, count
);
861 memset(page_buf
, 0, sizeof(page_buf
));
862 memcpy(&page_buf
[row_offset
], buffer
, row_bytes
);
864 hr
= psoc6_program_row(bank
, aligned_addr
, page_buf
, is_sflash
);
865 if (hr
!= ERROR_OK
) {
866 LOG_ERROR("Failed to program Flash at address 0x%08" PRIX32
, aligned_addr
);
876 sromalgo_release(target
);
880 /** ***********************************************************************************************
881 * @brief Performs Mass Erase operation
882 * @param bank flash bank index to erase
883 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
884 *************************************************************************************************/
885 COMMAND_HANDLER(psoc6_handle_mass_erase_command
)
888 return ERROR_COMMAND_SYNTAX_ERROR
;
890 struct flash_bank
*bank
;
891 int hr
= CALL_COMMAND_HANDLER(flash_command_get_bank
, 0, &bank
);
895 hr
= psoc6_erase(bank
, 0, bank
->num_sectors
- 1);
900 /** ***********************************************************************************************
901 * @brief Simulates broken Vector Catch
902 * Function will try to determine entry point of user application. If it succeeds it will set HW
903 * breakpoint at that address, issue SW Reset and remove the breakpoint afterwards.
904 * In case of CM0, SYSRESETREQ is used. This allows to reset all peripherals. Boot code will
905 * reset CM4 anyway, so using SYSRESETREQ is safe here.
906 * In case of CM4, VECTRESET is used instead of SYSRESETREQ to not disturb CM0 core.
908 * @param target current target
909 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
910 *************************************************************************************************/
911 static int handle_reset_halt(struct target
*target
)
915 bool is_cm0
= (target
->coreid
== 0);
917 /* Halt target device */
918 if (target
->state
!= TARGET_HALTED
) {
919 hr
= target_halt(target
);
923 target_wait_state(target
, TARGET_HALTED
, IPC_TIMEOUT_MS
);
928 /* Read Vector Offset register */
930 const uint32_t vt_offset_reg
= is_cm0
? 0x402102B0 : 0x402102C0;
931 hr
= target_read_u32(target
, vt_offset_reg
, &vt_base
);
935 /* Invalid value means flash is empty */
936 vt_base
&= 0xFFFFFF00;
937 if ((vt_base
== 0) || (vt_base
== 0xFFFFFF00))
940 /* Read Reset Vector value*/
941 hr
= target_read_u32(target
, vt_base
+ 4, &reset_addr
);
945 /* Invalid value means flash is empty */
946 if ((reset_addr
== 0) || (reset_addr
== 0xFFFFFF00))
950 /* Set breakpoint at User Application entry point */
951 hr
= breakpoint_add(target
, reset_addr
, 2, BKPT_HARD
);
955 const struct armv7m_common
*cm
= target_to_armv7m(target
);
957 /* PSoC6 reboots immediately after issuing SYSRESETREQ / VECTRESET
958 * this disables SWD/JTAG pins momentarily and may break communication
959 * Ignoring return value of mem_ap_write_atomic_u32 seems to be ok here */
961 /* Reset the CM0 by asserting SYSRESETREQ. This will also reset CM4 */
962 LOG_INFO("psoc6.cm0: bkpt @0x%08" PRIX32
", issuing SYSRESETREQ", reset_addr
);
963 mem_ap_write_atomic_u32(cm
->debug_ap
, NVIC_AIRCR
,
964 AIRCR_VECTKEY
| AIRCR_SYSRESETREQ
);
966 LOG_INFO("psoc6.cm4: bkpt @0x%08" PRIX32
", issuing VECTRESET", reset_addr
);
967 mem_ap_write_atomic_u32(cm
->debug_ap
, NVIC_AIRCR
,
968 AIRCR_VECTKEY
| AIRCR_VECTRESET
);
971 /* Wait 100ms for bootcode and reinitialize DAP */
973 dap_dp_init(cm
->debug_ap
->dap
);
975 target_wait_state(target
, TARGET_HALTED
, IPC_TIMEOUT_MS
);
977 /* Remove the break point */
978 breakpoint_remove(target
, reset_addr
);
983 /** ***********************************************************************************************
984 * @brief Simulates broken Vector Catch
985 * Function will try to determine entry point of user application. If it succeeds it will set HW
986 * breakpoint at that address, issue SW Reset and remove the breakpoint afterwards.
987 * In case of CM0, SYSRESETREQ is used. This allows to reset all peripherals. Boot code will
988 * reset CM4 anyway, so using SYSRESETREQ is safe here.
989 * In case of CM4, VECTRESET is used instead of SYSRESETREQ to not disturb CM0 core.
991 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
992 *************************************************************************************************/
993 COMMAND_HANDLER(psoc6_handle_reset_halt
)
996 return ERROR_COMMAND_SYNTAX_ERROR
;
998 struct target
*target
= get_current_target(CMD_CTX
);
999 return handle_reset_halt(target
);
1002 FLASH_BANK_COMMAND_HANDLER(psoc6_flash_bank_command
)
1004 struct psoc6_target_info
*psoc6_info
;
1008 hr
= ERROR_COMMAND_SYNTAX_ERROR
;
1010 psoc6_info
= calloc(1, sizeof(struct psoc6_target_info
));
1011 psoc6_info
->is_probed
= false;
1012 bank
->driver_priv
= psoc6_info
;
1017 static const struct command_registration psoc6_exec_command_handlers
[] = {
1019 .name
= "mass_erase",
1020 .handler
= psoc6_handle_mass_erase_command
,
1021 .mode
= COMMAND_EXEC
,
1023 .help
= "Erases entire Main Flash",
1026 .name
= "reset_halt",
1027 .handler
= psoc6_handle_reset_halt
,
1028 .mode
= COMMAND_EXEC
,
1030 .help
= "Tries to simulate broken Vector Catch",
1032 COMMAND_REGISTRATION_DONE
1035 static const struct command_registration psoc6_command_handlers
[] = {
1038 .mode
= COMMAND_ANY
,
1039 .help
= "PSoC 6 flash command group",
1041 .chain
= psoc6_exec_command_handlers
,
1043 COMMAND_REGISTRATION_DONE
1046 const struct flash_driver psoc6_flash
= {
1048 .commands
= psoc6_command_handlers
,
1049 .flash_bank_command
= psoc6_flash_bank_command
,
1050 .erase
= psoc6_erase
,
1051 .protect
= psoc6_protect
,
1052 .write
= psoc6_program
,
1053 .read
= default_flash_read
,
1054 .probe
= psoc6_probe
,
1055 .auto_probe
= psoc6_auto_probe
,
1056 .erase_check
= default_flash_blank_check
,
1057 .protect_check
= psoc6_protect_check
,
1058 .info
= psoc6_get_info
,
1059 .free_driver_priv
= default_flash_free_driver_priv
,
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