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/arm_adi_v5.h>
28 #include "target/target.h"
29 #include "target/cortex_m.h"
30 #include "target/breakpoints.h"
31 #include "target/target_type.h"
32 #include "time_support.h"
33 #include "target/algorithm.h"
35 /**************************************************************************************************
36 * PSoC6 device definitions
37 *************************************************************************************************/
38 #define MFLASH_SECTOR_SIZE (256u * 1024u)
39 #define WFLASH_SECTOR_SIZE (32u * 1024u)
41 #define MEM_BASE_MFLASH 0x10000000u
42 #define MEM_BASE_WFLASH 0x14000000u
43 #define MEM_WFLASH_SIZE 32768u
44 #define MEM_BASE_SFLASH 0x16000000u
45 #define RAM_STACK_WA_SIZE 2048u
46 #define PSOC6_SPCIF_GEOMETRY 0x4025F00Cu
48 #define PROTECTION_UNKNOWN 0x00u
49 #define PROTECTION_VIRGIN 0x01u
50 #define PROTECTION_NORMAL 0x02u
51 #define PROTECTION_SECURE 0x03u
52 #define PROTECTION_DEAD 0x04u
54 #define MEM_BASE_IPC 0x40230000u
55 #define IPC_STRUCT_SIZE 0x20u
56 #define MEM_IPC(n) (MEM_BASE_IPC + (n) * IPC_STRUCT_SIZE)
57 #define MEM_IPC_ACQUIRE(n) (MEM_IPC(n) + 0x00u)
58 #define MEM_IPC_NOTIFY(n) (MEM_IPC(n) + 0x08u)
59 #define MEM_IPC_DATA(n) (MEM_IPC(n) + 0x0Cu)
60 #define MEM_IPC_LOCK_STATUS(n) (MEM_IPC(n) + 0x10u)
62 #define MEM_BASE_IPC_INTR 0x40231000u
63 #define IPC_INTR_STRUCT_SIZE 0x20u
64 #define MEM_IPC_INTR(n) (MEM_BASE_IPC_INTR + (n) * IPC_INTR_STRUCT_SIZE)
65 #define MEM_IPC_INTR_MASK(n) (MEM_IPC_INTR(n) + 0x08u)
66 #define IPC_ACQUIRE_SUCCESS_MSK 0x80000000u
67 #define IPC_LOCK_ACQUIRED_MSK 0x80000000u
70 #define IPC_INTR_ID 0u
71 #define IPC_TIMEOUT_MS 1000
73 #define SROMAPI_SIID_REQ 0x00000001u
74 #define SROMAPI_SIID_REQ_FAMILY_REVISION (SROMAPI_SIID_REQ | 0x000u)
75 #define SROMAPI_SIID_REQ_SIID_PROTECTION (SROMAPI_SIID_REQ | 0x100u)
76 #define SROMAPI_WRITEROW_REQ 0x05000100u
77 #define SROMAPI_PROGRAMROW_REQ 0x06000100u
78 #define SROMAPI_ERASESECTOR_REQ 0x14000100u
79 #define SROMAPI_ERASEALL_REQ 0x0A000100u
80 #define SROMAPI_ERASEROW_REQ 0x1C000100u
82 #define SROMAPI_STATUS_MSK 0xF0000000u
83 #define SROMAPI_STAT_SUCCESS 0xA0000000u
84 #define SROMAPI_DATA_LOCATION_MSK 0x00000001u
85 #define SROMAPI_CALL_TIMEOUT_MS 1500
87 struct psoc6_target_info
{
90 uint32_t main_flash_sz
;
105 static const struct row_region safe_sflash_regions
[] = {
106 {0x16000800, 0x800}, /* SFLASH: User Data */
107 {0x16001A00, 0x200}, /* SFLASH: NAR */
108 {0x16005A00, 0xC00}, /* SFLASH: Public Key */
109 {0x16007C00, 0x400}, /* SFLASH: TOC2 */
112 #define SFLASH_NUM_REGIONS ARRAY_SIZE(safe_sflash_regions)
114 static struct working_area
*g_stack_area
;
115 static struct armv7m_algorithm g_armv7m_info
;
117 /** ***********************************************************************************************
118 * @brief Initializes `struct timeout` structure with given timeout value
119 * @param to pointer to `struct timeout` structure
120 * @param timeout_ms timeout, in milliseconds
121 *************************************************************************************************/
122 static void timeout_init(struct timeout
*to
, long timeout_ms
)
124 to
->start_time
= timeval_ms();
125 to
->timeout_ms
= timeout_ms
;
128 /** ***********************************************************************************************
129 * @brief Returns true if given `struct timeout` structure has expired
130 * @param to pointer to `struct timeout` structure
131 * @return true if timeout expired
132 *************************************************************************************************/
133 static bool timeout_expired(struct timeout
*to
)
135 return (timeval_ms() - to
->start_time
) > to
->timeout_ms
;
138 /** ***********************************************************************************************
139 * @brief Starts pseudo flash algorithm and leaves it running. Function allocates working area for
140 * algorithm code and CPU stack, adjusts stack pointer, uploads and starts the algorithm.
141 * Algorithm (a basic infinite loop) runs asynchronously while driver performs Flash operations.
143 * @param target target for the algorithm
144 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
145 *************************************************************************************************/
146 static int sromalgo_prepare(struct target
*target
)
150 /* Initialize Vector Table Offset register (in case FW modified it) */
151 hr
= target_write_u32(target
, 0xE000ED08, 0x00000000);
155 /* Allocate Working Area for Stack and Flash algorithm */
156 hr
= target_alloc_working_area(target
, RAM_STACK_WA_SIZE
, &g_stack_area
);
160 g_armv7m_info
.common_magic
= ARMV7M_COMMON_MAGIC
;
161 g_armv7m_info
.core_mode
= ARM_MODE_THREAD
;
163 struct reg_param reg_params
;
164 init_reg_param(®_params
, "sp", 32, PARAM_OUT
);
165 buf_set_u32(reg_params
.value
, 0, 32, g_stack_area
->address
+ g_stack_area
->size
);
167 /* Write basic infinite loop algorithm to target RAM */
168 hr
= target_write_u32(target
, g_stack_area
->address
, 0xFEE7FEE7);
170 goto destroy_rp_free_wa
;
172 hr
= target_start_algorithm(target
, 0, NULL
, 1, ®_params
, g_stack_area
->address
,
175 goto destroy_rp_free_wa
;
177 destroy_reg_param(®_params
);
182 /* Something went wrong, do some cleanup */
183 destroy_reg_param(®_params
);
186 target_free_working_area(target
, g_stack_area
);
193 /** ***********************************************************************************************
194 * @brief Stops running flash algorithm and releases associated resources.
195 * This function is also used for cleanup in case of errors so g_stack_area may be NULL.
196 * These cases have to be handled gracefully.
198 * @param target current target
199 *************************************************************************************************/
200 static void sromalgo_release(struct target
*target
)
205 /* Stop flash algorithm if it is running */
206 if (target
->running_alg
) {
207 hr
= target_halt(target
);
211 hr
= target_wait_algorithm(target
, 0, NULL
, 0, NULL
, 0,
212 IPC_TIMEOUT_MS
, &g_armv7m_info
);
218 /* Free Stack/Flash algorithm working area */
219 target_free_working_area(target
, g_stack_area
);
224 /** ***********************************************************************************************
225 * @brief Waits for expected IPC lock status. PSoC6 uses IPC structures for inter-core
226 * communication. Same IPCs are used to invoke SROM API. IPC structure must be locked prior to
227 * invoking any SROM API. This ensures nothing else in the system will use same IPC thus corrupting
228 * our data. Locking is performed by ipc_acquire(), this function ensures that IPC is actually
231 * @param target current target
232 * @param ipc_id IPC index to poll. IPC #2 is dedicated for DAP access
233 * @param lock_expected expected lock status
234 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
235 *************************************************************************************************/
236 static int ipc_poll_lock_stat(struct target
*target
, uint32_t ipc_id
, bool lock_expected
)
242 timeout_init(&to
, IPC_TIMEOUT_MS
);
244 while (!timeout_expired(&to
)) {
245 /* Process any server requests */
248 /* Read IPC Lock status */
249 hr
= target_read_u32(target
, MEM_IPC_LOCK_STATUS(ipc_id
), ®_val
);
250 if (hr
!= ERROR_OK
) {
251 LOG_ERROR("Unable to read IPC Lock Status register");
255 bool is_locked
= (reg_val
& IPC_LOCK_ACQUIRED_MSK
) != 0;
257 if (lock_expected
== is_locked
)
261 if (target
->coreid
) {
262 LOG_WARNING("SROM API calls via CM4 target are supported on single-core PSoC6 devices only. "
263 "Please perform all Flash-related operations via CM0+ target on dual-core devices.");
266 LOG_ERROR("Timeout polling IPC Lock Status");
267 return ERROR_TARGET_TIMEOUT
;
270 /** ***********************************************************************************************
271 * @brief Acquires IPC structure. PSoC6 uses IPC structures for inter-core communication.
272 * Same IPCs are used to invoke SROM API. IPC structure must be locked prior to invoking any SROM API.
273 * This ensures nothing else in the system will use same IPC thus corrupting our data.
274 * This function locks the IPC.
276 * @param target current target
277 * @param ipc_id ipc_id IPC index to acquire. IPC #2 is dedicated for DAP access
278 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
279 *************************************************************************************************/
280 static int ipc_acquire(struct target
*target
, char ipc_id
)
283 bool is_acquired
= false;
287 timeout_init(&to
, IPC_TIMEOUT_MS
);
289 while (!timeout_expired(&to
)) {
292 hr
= target_write_u32(target
, MEM_IPC_ACQUIRE(ipc_id
), IPC_ACQUIRE_SUCCESS_MSK
);
293 if (hr
!= ERROR_OK
) {
294 LOG_ERROR("Unable to write to IPC Acquire register");
298 /* Check if data is written on first step */
299 hr
= target_read_u32(target
, MEM_IPC_ACQUIRE(ipc_id
), ®_val
);
300 if (hr
!= ERROR_OK
) {
301 LOG_ERROR("Unable to read IPC Acquire register");
305 is_acquired
= (reg_val
& IPC_ACQUIRE_SUCCESS_MSK
) != 0;
307 /* If IPC structure is acquired, the lock status should be set */
308 hr
= ipc_poll_lock_stat(target
, ipc_id
, true);
314 LOG_ERROR("Timeout acquiring IPC structure");
319 /** ***********************************************************************************************
320 * @brief Invokes SROM API functions which are responsible for Flash operations
322 * @param target current target
323 * @param req_and_params request id of the function to invoke
324 * @param working_area address of memory buffer in target's memory space for SROM API parameters
325 * @param data_out pointer to variable which will be populated with execution status
326 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
327 *************************************************************************************************/
328 static int call_sromapi(struct target
*target
,
329 uint32_t req_and_params
,
330 uint32_t working_area
,
335 bool is_data_in_ram
= (req_and_params
& SROMAPI_DATA_LOCATION_MSK
) == 0;
337 hr
= ipc_acquire(target
, IPC_ID
);
342 hr
= target_write_u32(target
, MEM_IPC_DATA(IPC_ID
), working_area
);
344 hr
= target_write_u32(target
, MEM_IPC_DATA(IPC_ID
), req_and_params
);
349 /* Enable notification interrupt of IPC_INTR_STRUCT0(CM0+) for IPC_STRUCT2 */
350 hr
= target_write_u32(target
, MEM_IPC_INTR_MASK(IPC_INTR_ID
), 1u << (16 + IPC_ID
));
354 hr
= target_write_u32(target
, MEM_IPC_NOTIFY(IPC_ID
), 1);
358 /* Poll lock status */
359 hr
= ipc_poll_lock_stat(target
, IPC_ID
, false);
365 hr
= target_read_u32(target
, working_area
, data_out
);
367 hr
= target_read_u32(target
, MEM_IPC_DATA(IPC_ID
), data_out
);
369 if (hr
!= ERROR_OK
) {
370 LOG_ERROR("Error reading SROM API Status location");
374 bool is_success
= (*data_out
& SROMAPI_STATUS_MSK
) == SROMAPI_STAT_SUCCESS
;
376 LOG_ERROR("SROM API execution failed. Status: 0x%08" PRIX32
, *data_out
);
377 return ERROR_TARGET_FAILURE
;
383 /** ***********************************************************************************************
384 * @brief Retrieves SiliconID and Protection status of the target device
385 * @param target current target
386 * @param si_id pointer to variable, will be populated with SiliconID
387 * @param protection pointer to variable, will be populated with protection status
388 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
389 *************************************************************************************************/
390 static int get_silicon_id(struct target
*target
, uint32_t *si_id
, uint8_t *protection
)
393 uint32_t family_rev
, siid_prot
;
395 hr
= sromalgo_prepare(target
);
399 /* Read FamilyID and Revision */
400 hr
= call_sromapi(target
, SROMAPI_SIID_REQ_FAMILY_REVISION
, 0, &family_rev
);
404 /* Read SiliconID and Protection */
405 hr
= call_sromapi(target
, SROMAPI_SIID_REQ_SIID_PROTECTION
, 0, &siid_prot
);
409 *si_id
= (siid_prot
& 0x0000FFFF) << 16;
410 *si_id
|= (family_rev
& 0x00FF0000) >> 8;
411 *si_id
|= (family_rev
& 0x000000FF) >> 0;
413 *protection
= (siid_prot
& 0x000F0000) >> 0x10;
416 sromalgo_release(target
);
420 /** ***********************************************************************************************
421 * @brief Translates Protection status to openocd-friendly boolean value
422 * @param bank current flash bank
423 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
424 *************************************************************************************************/
425 static int psoc6_protect_check(struct flash_bank
*bank
)
429 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
430 int hr
= get_silicon_id(bank
->target
, &psoc6_info
->silicon_id
, &psoc6_info
->protection
);
434 switch (psoc6_info
->protection
) {
435 case PROTECTION_VIRGIN
:
436 case PROTECTION_NORMAL
:
440 case PROTECTION_UNKNOWN
:
441 case PROTECTION_SECURE
:
442 case PROTECTION_DEAD
:
448 for (unsigned int i
= 0; i
< bank
->num_sectors
; i
++)
449 bank
->sectors
[i
].is_protected
= is_protected
;
454 /** ***********************************************************************************************
455 * @brief Dummy function, Life Cycle transition is not currently supported
456 * @return ERROR_OK always
457 *************************************************************************************************/
458 static int psoc6_protect(struct flash_bank
*bank
, int set
, unsigned int first
,
466 LOG_WARNING("Life Cycle transition for PSoC6 is not supported");
470 /** ***********************************************************************************************
471 * @brief Translates Protection status to string
472 * @param protection protection value
473 * @return pointer to const string describing protection status
474 *************************************************************************************************/
475 static const char *protection_to_str(uint8_t protection
)
477 switch (protection
) {
478 case PROTECTION_VIRGIN
:
480 case PROTECTION_NORMAL
:
482 case PROTECTION_SECURE
:
484 case PROTECTION_DEAD
:
486 case PROTECTION_UNKNOWN
:
492 /** ***********************************************************************************************
493 * @brief psoc6_get_info Displays human-readable information about acquired device
494 * @param bank current flash bank
495 * @param buf pointer to buffer for human-readable text
496 * @param buf_size size of the buffer
497 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
498 *************************************************************************************************/
499 static int psoc6_get_info(struct flash_bank
*bank
, struct command_invocation
*cmd
)
501 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
503 if (psoc6_info
->is_probed
== false)
506 int hr
= get_silicon_id(bank
->target
, &psoc6_info
->silicon_id
, &psoc6_info
->protection
);
510 command_print_sameline(cmd
,
511 "PSoC6 Silicon ID: 0x%08" PRIX32
"\n"
513 "Main Flash size: %" PRIu32
" kB\n"
514 "Work Flash size: 32 kB\n",
515 psoc6_info
->silicon_id
,
516 protection_to_str(psoc6_info
->protection
),
517 psoc6_info
->main_flash_sz
/ 1024);
522 /** ***********************************************************************************************
523 * @brief Checks if given flash bank belongs to Supervisory Flash
524 * @param bank current flash bank
525 * @return true if flash bank belongs to Supervisory Flash
526 *************************************************************************************************/
527 static bool is_sflash_bank(struct flash_bank
*bank
)
529 for (size_t i
= 0; i
< SFLASH_NUM_REGIONS
; i
++) {
530 if (bank
->base
== safe_sflash_regions
[i
].addr
)
537 /** ***********************************************************************************************
538 * @brief Checks if given flash bank belongs to Work Flash
539 * @param bank current flash bank
540 * @return true if flash bank belongs to Work Flash
541 *************************************************************************************************/
542 static inline bool is_wflash_bank(struct flash_bank
*bank
)
544 return (bank
->base
== MEM_BASE_WFLASH
);
547 /** ***********************************************************************************************
548 * @brief Checks if given flash bank belongs to Main Flash
549 * @param bank current flash bank
550 * @return true if flash bank belongs to Main Flash
551 *************************************************************************************************/
552 static inline bool is_mflash_bank(struct flash_bank
*bank
)
554 return (bank
->base
== MEM_BASE_MFLASH
);
557 /** ***********************************************************************************************
558 * @brief Probes the device and populates related data structures with target flash geometry data.
559 * This is done in non-intrusive way, no SROM API calls are involved so GDB can safely attach to a
560 * running target. Function assumes that size of Work Flash is 32kB (true for all current part numbers)
562 * @param bank current flash bank
563 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
564 *************************************************************************************************/
565 static int psoc6_probe(struct flash_bank
*bank
)
567 struct target
*target
= bank
->target
;
568 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
572 /* Retrieve data from SPCIF_GEOMETRY */
574 target_read_u32(target
, PSOC6_SPCIF_GEOMETRY
, &geom
);
575 uint32_t row_sz_lg2
= (geom
& 0xF0) >> 4;
576 uint32_t row_sz
= (0x01 << row_sz_lg2
);
577 uint32_t row_cnt
= 1 + ((geom
& 0x00FFFF00) >> 8);
578 uint32_t bank_cnt
= 1 + ((geom
& 0xFF000000) >> 24);
580 /* Calculate size of Main Flash*/
581 uint32_t flash_sz_bytes
= bank_cnt
* row_cnt
* row_sz
;
584 bank
->sectors
= NULL
;
586 size_t bank_size
= 0;
588 if (is_mflash_bank(bank
))
589 bank_size
= flash_sz_bytes
;
590 else if (is_wflash_bank(bank
))
591 bank_size
= MEM_WFLASH_SIZE
;
592 else if (is_sflash_bank(bank
)) {
593 for (size_t i
= 0; i
< SFLASH_NUM_REGIONS
; i
++) {
594 if (safe_sflash_regions
[i
].addr
== bank
->base
) {
595 bank_size
= safe_sflash_regions
[i
].size
;
601 if (bank_size
== 0) {
602 LOG_ERROR("Invalid Flash Bank base address in config file");
603 return ERROR_FLASH_BANK_INVALID
;
606 unsigned int num_sectors
= bank_size
/ row_sz
;
607 bank
->size
= bank_size
;
608 bank
->chip_width
= 4;
610 bank
->erased_value
= 0;
611 bank
->default_padded_value
= 0;
613 bank
->num_sectors
= num_sectors
;
614 bank
->sectors
= calloc(num_sectors
, sizeof(struct flash_sector
));
615 for (unsigned int i
= 0; i
< num_sectors
; i
++) {
616 bank
->sectors
[i
].size
= row_sz
;
617 bank
->sectors
[i
].offset
= i
* row_sz
;
618 bank
->sectors
[i
].is_erased
= -1;
619 bank
->sectors
[i
].is_protected
= -1;
622 psoc6_info
->is_probed
= true;
623 psoc6_info
->main_flash_sz
= flash_sz_bytes
;
624 psoc6_info
->row_sz
= row_sz
;
629 /** ***********************************************************************************************
630 * @brief Probes target device only if it hasn't been probed yet
631 * @param bank current flash bank
632 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
633 *************************************************************************************************/
634 static int psoc6_auto_probe(struct flash_bank
*bank
)
636 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
639 if (psoc6_info
->is_probed
)
642 hr
= psoc6_probe(bank
);
647 /** ***********************************************************************************************
648 * @brief Erases single sector (256k) on target device
649 * @param bank current flash bank
650 * @param wa working area for SROM API parameters
651 * @param addr starting address of the sector
652 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
653 *************************************************************************************************/
654 static int psoc6_erase_sector(struct flash_bank
*bank
, struct working_area
*wa
, uint32_t addr
)
656 struct target
*target
= bank
->target
;
658 LOG_DEBUG("Erasing SECTOR @%08" PRIX32
, addr
);
660 int hr
= target_write_u32(target
, wa
->address
, SROMAPI_ERASESECTOR_REQ
);
664 hr
= target_write_u32(target
, wa
->address
+ 0x04, addr
);
669 hr
= call_sromapi(target
, SROMAPI_ERASESECTOR_REQ
, wa
->address
, &data_out
);
671 LOG_ERROR("SECTOR @%08" PRIX32
" not erased!", addr
);
676 /** ***********************************************************************************************
677 * @brief Erases single row (512b) on target device
678 * @param bank current flash bank
679 * @param wa working area for SROM API parameters
680 * @param addr starting address of the flash row
681 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
682 *************************************************************************************************/
683 static int psoc6_erase_row(struct flash_bank
*bank
, struct working_area
*wa
, uint32_t addr
)
685 struct target
*target
= bank
->target
;
687 LOG_DEBUG("Erasing ROW @%08" PRIX32
, addr
);
689 int hr
= target_write_u32(target
, wa
->address
, SROMAPI_ERASEROW_REQ
);
693 hr
= target_write_u32(target
, wa
->address
+ 0x04, addr
);
698 hr
= call_sromapi(target
, SROMAPI_ERASEROW_REQ
, wa
->address
, &data_out
);
700 LOG_ERROR("ROW @%08" PRIX32
" not erased!", addr
);
705 /** ***********************************************************************************************
706 * @brief Performs Erase operation. Function will try to use biggest erase block possible to
707 * speedup the operation.
709 * @param bank current flash bank
710 * @param first first sector to erase
711 * @param last last sector to erase
712 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
713 *************************************************************************************************/
714 static int psoc6_erase(struct flash_bank
*bank
, unsigned int first
,
717 struct target
*target
= bank
->target
;
718 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
719 const uint32_t sector_size
= is_wflash_bank(bank
) ? WFLASH_SECTOR_SIZE
: MFLASH_SECTOR_SIZE
;
722 struct working_area
*wa
;
724 if (is_sflash_bank(bank
)) {
725 LOG_INFO("Erase operation on Supervisory Flash is not required, skipping");
729 hr
= sromalgo_prepare(target
);
733 hr
= target_alloc_working_area(target
, psoc6_info
->row_sz
+ 32, &wa
);
737 /* Number of rows in single sector */
738 const unsigned int rows_in_sector
= sector_size
/ psoc6_info
->row_sz
;
740 while (last
>= first
) {
741 /* Erase Sector if we are on sector boundary and erase size covers whole sector */
742 if ((first
% rows_in_sector
) == 0 &&
743 (last
- first
+ 1) >= rows_in_sector
) {
744 hr
= psoc6_erase_sector(bank
, wa
, bank
->base
+ first
* psoc6_info
->row_sz
);
748 first
+= rows_in_sector
;
750 /* Perform Row Erase otherwise */
751 hr
= psoc6_erase_row(bank
, wa
, bank
->base
+ first
* psoc6_info
->row_sz
);
760 target_free_working_area(target
, wa
);
762 sromalgo_release(target
);
766 /** ***********************************************************************************************
767 * @brief Programs single Flash Row
768 * @param bank current flash bank
769 * @param addr address of the flash row
770 * @param buffer pointer to the buffer with data
771 * @param is_sflash true if current flash bank belongs to Supervisory Flash
772 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
773 *************************************************************************************************/
774 static int psoc6_program_row(struct flash_bank
*bank
,
776 const uint8_t *buffer
,
779 struct target
*target
= bank
->target
;
780 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
781 struct working_area
*wa
;
782 const uint32_t sromapi_req
= is_sflash
? SROMAPI_WRITEROW_REQ
: SROMAPI_PROGRAMROW_REQ
;
786 LOG_DEBUG("Programming ROW @%08" PRIX32
, addr
);
788 hr
= target_alloc_working_area(target
, psoc6_info
->row_sz
+ 32, &wa
);
792 hr
= target_write_u32(target
, wa
->address
, sromapi_req
);
796 hr
= target_write_u32(target
,
802 hr
= target_write_u32(target
, wa
->address
+ 0x08, addr
);
806 hr
= target_write_u32(target
, wa
->address
+ 0x0C, wa
->address
+ 0x10);
810 hr
= target_write_buffer(target
, wa
->address
+ 0x10, psoc6_info
->row_sz
, buffer
);
814 hr
= call_sromapi(target
, sromapi_req
, wa
->address
, &data_out
);
817 target_free_working_area(target
, wa
);
823 /** ***********************************************************************************************
824 * @brief Performs Program operation
825 * @param bank current flash bank
826 * @param buffer pointer to the buffer with data
827 * @param offset starting offset in flash bank
828 * @param count number of bytes in buffer
829 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
830 *************************************************************************************************/
831 static int psoc6_program(struct flash_bank
*bank
,
832 const uint8_t *buffer
,
836 struct target
*target
= bank
->target
;
837 struct psoc6_target_info
*psoc6_info
= bank
->driver_priv
;
838 const bool is_sflash
= is_sflash_bank(bank
);
841 uint8_t page_buf
[psoc6_info
->row_sz
];
843 hr
= sromalgo_prepare(target
);
848 uint32_t row_offset
= offset
% psoc6_info
->row_sz
;
849 uint32_t aligned_addr
= bank
->base
+ offset
- row_offset
;
850 uint32_t row_bytes
= MIN(psoc6_info
->row_sz
- row_offset
, count
);
852 memset(page_buf
, 0, sizeof(page_buf
));
853 memcpy(&page_buf
[row_offset
], buffer
, row_bytes
);
855 hr
= psoc6_program_row(bank
, aligned_addr
, page_buf
, is_sflash
);
856 if (hr
!= ERROR_OK
) {
857 LOG_ERROR("Failed to program Flash at address 0x%08" PRIX32
, aligned_addr
);
867 sromalgo_release(target
);
871 /** ***********************************************************************************************
872 * @brief Performs Mass Erase operation
873 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
874 *************************************************************************************************/
875 COMMAND_HANDLER(psoc6_handle_mass_erase_command
)
878 return ERROR_COMMAND_SYNTAX_ERROR
;
880 struct flash_bank
*bank
;
881 int hr
= CALL_COMMAND_HANDLER(flash_command_get_bank
, 0, &bank
);
885 hr
= psoc6_erase(bank
, 0, bank
->num_sectors
- 1);
890 /** ***********************************************************************************************
891 * @brief Simulates broken Vector Catch
892 * Function will try to determine entry point of user application. If it succeeds it will set HW
893 * breakpoint at that address, issue SW Reset and remove the breakpoint afterwards.
894 * In case of CM0, SYSRESETREQ is used. This allows to reset all peripherals. Boot code will
895 * reset CM4 anyway, so using SYSRESETREQ is safe here.
896 * In case of CM4, VECTRESET is used instead of SYSRESETREQ to not disturb CM0 core.
898 * @param target current target
899 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
900 *************************************************************************************************/
901 static int handle_reset_halt(struct target
*target
)
905 bool is_cm0
= (target
->coreid
== 0);
907 /* Halt target device */
908 if (target
->state
!= TARGET_HALTED
) {
909 hr
= target_halt(target
);
913 target_wait_state(target
, TARGET_HALTED
, IPC_TIMEOUT_MS
);
918 /* Read Vector Offset register */
920 const uint32_t vt_offset_reg
= is_cm0
? 0x402102B0 : 0x402102C0;
921 hr
= target_read_u32(target
, vt_offset_reg
, &vt_base
);
925 /* Invalid value means flash is empty */
926 vt_base
&= 0xFFFFFF00;
927 if ((vt_base
== 0) || (vt_base
== 0xFFFFFF00))
930 /* Read Reset Vector value*/
931 hr
= target_read_u32(target
, vt_base
+ 4, &reset_addr
);
935 /* Invalid value means flash is empty */
936 if ((reset_addr
== 0) || (reset_addr
== 0xFFFFFF00))
940 /* Set breakpoint at User Application entry point */
941 hr
= breakpoint_add(target
, reset_addr
, 2, BKPT_HARD
);
945 const struct armv7m_common
*cm
= target_to_armv7m(target
);
947 /* PSoC6 reboots immediately after issuing SYSRESETREQ / VECTRESET
948 * this disables SWD/JTAG pins momentarily and may break communication
949 * Ignoring return value of mem_ap_write_atomic_u32 seems to be ok here */
951 /* Reset the CM0 by asserting SYSRESETREQ. This will also reset CM4 */
952 LOG_INFO("psoc6.cm0: bkpt @0x%08" PRIX32
", issuing SYSRESETREQ", reset_addr
);
953 mem_ap_write_atomic_u32(cm
->debug_ap
, NVIC_AIRCR
,
954 AIRCR_VECTKEY
| AIRCR_SYSRESETREQ
);
956 LOG_INFO("psoc6.cm4: bkpt @0x%08" PRIX32
", issuing VECTRESET", reset_addr
);
957 mem_ap_write_atomic_u32(cm
->debug_ap
, NVIC_AIRCR
,
958 AIRCR_VECTKEY
| AIRCR_VECTRESET
);
961 /* Wait 100ms for bootcode and reinitialize DAP */
963 dap_dp_init(cm
->debug_ap
->dap
);
965 target_wait_state(target
, TARGET_HALTED
, IPC_TIMEOUT_MS
);
967 /* Remove the break point */
968 breakpoint_remove(target
, reset_addr
);
973 /** ***********************************************************************************************
974 * @brief Simulates broken Vector Catch
975 * Function will try to determine entry point of user application. If it succeeds it will set HW
976 * breakpoint at that address, issue SW Reset and remove the breakpoint afterwards.
977 * In case of CM0, SYSRESETREQ is used. This allows to reset all peripherals. Boot code will
978 * reset CM4 anyway, so using SYSRESETREQ is safe here.
979 * In case of CM4, VECTRESET is used instead of SYSRESETREQ to not disturb CM0 core.
981 * @return ERROR_OK in case of success, ERROR_XXX code otherwise
982 *************************************************************************************************/
983 COMMAND_HANDLER(psoc6_handle_reset_halt
)
986 return ERROR_COMMAND_SYNTAX_ERROR
;
988 struct target
*target
= get_current_target(CMD_CTX
);
989 return handle_reset_halt(target
);
992 FLASH_BANK_COMMAND_HANDLER(psoc6_flash_bank_command
)
994 struct psoc6_target_info
*psoc6_info
;
998 hr
= ERROR_COMMAND_SYNTAX_ERROR
;
1000 psoc6_info
= calloc(1, sizeof(struct psoc6_target_info
));
1001 psoc6_info
->is_probed
= false;
1002 bank
->driver_priv
= psoc6_info
;
1007 static const struct command_registration psoc6_exec_command_handlers
[] = {
1009 .name
= "mass_erase",
1010 .handler
= psoc6_handle_mass_erase_command
,
1011 .mode
= COMMAND_EXEC
,
1013 .help
= "Erases entire Main Flash",
1016 .name
= "reset_halt",
1017 .handler
= psoc6_handle_reset_halt
,
1018 .mode
= COMMAND_EXEC
,
1020 .help
= "Tries to simulate broken Vector Catch",
1022 COMMAND_REGISTRATION_DONE
1025 static const struct command_registration psoc6_command_handlers
[] = {
1028 .mode
= COMMAND_ANY
,
1029 .help
= "PSoC 6 flash command group",
1031 .chain
= psoc6_exec_command_handlers
,
1033 COMMAND_REGISTRATION_DONE
1036 const struct flash_driver psoc6_flash
= {
1038 .commands
= psoc6_command_handlers
,
1039 .flash_bank_command
= psoc6_flash_bank_command
,
1040 .erase
= psoc6_erase
,
1041 .protect
= psoc6_protect
,
1042 .write
= psoc6_program
,
1043 .read
= default_flash_read
,
1044 .probe
= psoc6_probe
,
1045 .auto_probe
= psoc6_auto_probe
,
1046 .erase_check
= default_flash_blank_check
,
1047 .protect_check
= psoc6_protect_check
,
1048 .info
= psoc6_get_info
,
1049 .free_driver_priv
= default_flash_free_driver_priv
,
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