1 /******************************************************************************
5 * @brief Ambiq Micro flash driver.
7 *****************************************************************************/
9 /******************************************************************************
10 * Copyright (c) 2015, David Racine <dracine at ambiqmicro.com>
12 * Copyright (c) 2016, Rick Foos <rfoos at solengtech.com>
14 * Copyright (c) 2015-2016, Ambiq Micro, Inc.
16 * All rights reserved.
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions are met:
21 * 1. Redistributions of source code must retain the above copyright notice,
22 * this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
28 * 3. Neither the name of the copyright holder nor the names of its
29 * contributors may be used to endorse or promote products derived from this
30 * software without specific prior written permission.
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
33 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
36 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
37 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
38 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
39 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
40 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
41 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGE.
44 *****************************************************************************/
49 #include "jtag/interface.h"
51 #include "target/algorithm.h"
52 #include "target/armv7m.h"
53 #include "target/cortex_m.h"
55 /** Check error, log error. */
56 #define CHECK_STATUS(rc, msg) { \
57 if (rc != ERROR_OK) { \
58 LOG_ERROR("status(%d):%s\n", rc, msg); } }
61 * Address and Key defines.
63 #define PROGRAM_KEY (0x12344321)
64 #define OTP_PROGRAM_KEY (0x87655678)
66 #define FLASH_PROGRAM_MAIN_FROM_SRAM 0x0800005d
67 #define FLASH_PROGRAM_OTP_FROM_SRAM 0x08000061
68 #define FLASH_ERASE_LIST_MAIN_PAGES_FROM_SRAM 0x08000065
69 #define FLASH_MASS_ERASE_MAIN_PAGES_FROM_SRAM 0x08000069
72 static const uint32_t apollo_flash_size
[] = {
82 static const uint32_t apollo_sram_size
[] = {
92 struct ambiqmicro_flash_bank
{
93 /* chip id register */
97 const char *target_name
;
106 uint32_t pages_in_lockregion
;
109 uint16_t num_lockbits
;
111 /* main clock status */
118 const char *iosc_desc
;
119 const char *mck_desc
;
125 const char *partname
;
126 } ambiqmicroParts
[6] = {
127 {0xFF, 0x00, "Unknown"},
128 {0x01, 0x00, "Apollo"},
129 {0x02, 0x00, "Apollo2"},
130 {0x03, 0x00, "Unknown"},
131 {0x04, 0x00, "Unknown"},
132 {0x05, 0x00, "Apollo"},
135 static char *ambiqmicroClassname
[6] = {
136 "Unknown", "Apollo", "Apollo2", "Unknown", "Unknown", "Apollo"
139 /***************************************************************************
140 * openocd command interface *
141 ***************************************************************************/
143 /* flash_bank ambiqmicro <base> <size> 0 0 <target#>
145 FLASH_BANK_COMMAND_HANDLER(ambiqmicro_flash_bank_command
)
147 struct ambiqmicro_flash_bank
*ambiqmicro_info
;
150 return ERROR_COMMAND_SYNTAX_ERROR
;
152 ambiqmicro_info
= calloc(sizeof(struct ambiqmicro_flash_bank
), 1);
154 bank
->driver_priv
= ambiqmicro_info
;
156 ambiqmicro_info
->target_name
= "Unknown target";
158 /* part wasn't probed yet */
159 ambiqmicro_info
->probed
= false;
164 static int get_ambiqmicro_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
166 struct ambiqmicro_flash_bank
*ambiqmicro_info
= bank
->driver_priv
;
170 if (!ambiqmicro_info
->probed
) {
171 LOG_ERROR("Target not probed");
172 return ERROR_FLASH_BANK_NOT_PROBED
;
175 /* Check class name in range. */
176 if (ambiqmicro_info
->target_class
< sizeof(ambiqmicroClassname
))
177 classname
= ambiqmicroClassname
[ambiqmicro_info
->target_class
];
179 classname
= ambiqmicroClassname
[0];
181 printed
= snprintf(buf
,
183 "\nAmbiq Micro information: Chip is "
184 "class %d (%s) %s\n",
185 ambiqmicro_info
->target_class
,
187 ambiqmicro_info
->target_name
);
190 return ERROR_BUF_TOO_SMALL
;
194 /***************************************************************************
195 * chip identification and status *
196 ***************************************************************************/
198 /* Fill in driver info structure */
199 static int ambiqmicro_read_part_info(struct flash_bank
*bank
)
201 struct ambiqmicro_flash_bank
*ambiqmicro_info
= bank
->driver_priv
;
202 struct target
*target
= bank
->target
;
203 uint32_t PartNum
= 0;
209 retval
= target_read_u32(target
, 0x40020000, &PartNum
);
210 if (retval
!= ERROR_OK
) {
211 LOG_ERROR("status(0x%x):Could not read PartNum.\n", retval
);
212 /* Set PartNum to default device */
215 LOG_DEBUG("Part number: 0x%x", PartNum
);
218 * Determine device class.
220 ambiqmicro_info
->target_class
= (PartNum
& 0xFF000000) >> 24;
222 switch (ambiqmicro_info
->target_class
) {
223 case 1: /* 1 - Apollo */
224 case 5: /* 5 - Apollo Bootloader */
225 bank
->base
= bank
->bank_number
* 0x40000;
226 ambiqmicro_info
->pagesize
= 2048;
227 ambiqmicro_info
->flshsiz
=
228 apollo_flash_size
[(PartNum
& 0x00F00000) >> 20];
229 ambiqmicro_info
->sramsiz
=
230 apollo_sram_size
[(PartNum
& 0x000F0000) >> 16];
231 ambiqmicro_info
->num_pages
= ambiqmicro_info
->flshsiz
/
232 ambiqmicro_info
->pagesize
;
233 if (ambiqmicro_info
->num_pages
> 128) {
234 ambiqmicro_info
->num_pages
= 128;
235 ambiqmicro_info
->flshsiz
= 1024 * 256;
240 LOG_INFO("Unknown Class. Using Apollo-64 as default.");
242 bank
->base
= bank
->bank_number
* 0x40000;
243 ambiqmicro_info
->pagesize
= 2048;
244 ambiqmicro_info
->flshsiz
= apollo_flash_size
[1];
245 ambiqmicro_info
->sramsiz
= apollo_sram_size
[0];
246 ambiqmicro_info
->num_pages
= ambiqmicro_info
->flshsiz
/
247 ambiqmicro_info
->pagesize
;
248 if (ambiqmicro_info
->num_pages
> 128) {
249 ambiqmicro_info
->num_pages
= 128;
250 ambiqmicro_info
->flshsiz
= 1024 * 256;
256 if (ambiqmicro_info
->target_class
< ARRAY_SIZE(ambiqmicroParts
))
257 ambiqmicro_info
->target_name
=
258 ambiqmicroParts
[ambiqmicro_info
->target_class
].partname
;
260 ambiqmicro_info
->target_name
=
261 ambiqmicroParts
[0].partname
;
263 LOG_DEBUG("num_pages: %d, pagesize: %d, flash: %d, sram: %d",
264 ambiqmicro_info
->num_pages
,
265 ambiqmicro_info
->pagesize
,
266 ambiqmicro_info
->flshsiz
,
267 ambiqmicro_info
->sramsiz
);
272 /***************************************************************************
274 ***************************************************************************/
276 static int ambiqmicro_protect_check(struct flash_bank
*bank
)
278 struct ambiqmicro_flash_bank
*ambiqmicro
= bank
->driver_priv
;
279 int status
= ERROR_OK
;
283 if (!ambiqmicro
->probed
) {
284 LOG_ERROR("Target not probed");
285 return ERROR_FLASH_BANK_NOT_PROBED
;
288 for (i
= 0; i
< (unsigned) bank
->num_sectors
; i
++)
289 bank
->sectors
[i
].is_protected
= -1;
293 /** Read flash status from bootloader. */
294 static int check_flash_status(struct target
*target
, uint32_t address
)
298 rc
= target_read_u32(target
, address
, &retflash
);
299 /* target connection failed. */
300 if (rc
!= ERROR_OK
) {
301 LOG_DEBUG("%s:%d:%s(): status(0x%x)\n",
302 __FILE__
, __LINE__
, __func__
, rc
);
305 /* target flash failed, unknown cause. */
307 LOG_ERROR("Flash not happy: status(0x%x)", retflash
);
308 return ERROR_FLASH_OPERATION_FAILED
;
313 static int ambiqmicro_exec_command(struct target
*target
,
315 uint32_t flash_return_address
)
317 int retval
, retflash
;
319 retval
= target_resume(
326 CHECK_STATUS(retval
, "error executing ambiqmicro command");
333 if (target
->state
== TARGET_HALTED
)
335 else if (target
->state
== TARGET_RUNNING
||
336 target
->state
== TARGET_DEBUG_RUNNING
) {
338 * Keep polling until target halts.
342 LOG_DEBUG("state = %d", target
->state
);
344 LOG_ERROR("Target not halted or running %d", target
->state
);
350 * Read return value, flash error takes precedence.
352 retflash
= check_flash_status(target
, flash_return_address
);
353 if (retflash
!= ERROR_OK
)
356 /* Return code from target_resume OR flash. */
360 static int ambiqmicro_mass_erase(struct flash_bank
*bank
)
362 struct target
*target
= NULL
;
363 struct ambiqmicro_flash_bank
*ambiqmicro_info
= NULL
;
364 int retval
= ERROR_OK
;
366 ambiqmicro_info
= bank
->driver_priv
;
367 target
= bank
->target
;
369 if (target
->state
!= TARGET_HALTED
) {
370 LOG_ERROR("Target not halted");
371 return ERROR_TARGET_NOT_HALTED
;
374 if (!ambiqmicro_info
->probed
) {
375 LOG_ERROR("Target not probed");
376 return ERROR_FLASH_BANK_NOT_PROBED
;
380 * Clear Bootloader bit.
382 retval
= target_write_u32(target
, 0x400201a0, 0x0);
383 CHECK_STATUS(retval
, "error clearing bootloader bit.");
392 retval
= target_write_u32(target
, 0x10000000, bank
->bank_number
);
393 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
398 retval
= target_write_u32(target
, 0x10000004, PROGRAM_KEY
);
399 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
404 retval
= target_write_u32(target
, 0x10000008, 0xfffffffe);
405 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
408 * Erase the main array.
410 LOG_INFO("Mass erase on bank %d.", bank
->bank_number
);
413 * passed pc, addr = ROM function, handle breakpoints, not debugging.
415 retval
= ambiqmicro_exec_command(target
, FLASH_MASS_ERASE_MAIN_PAGES_FROM_SRAM
, 0x10000008);
416 CHECK_STATUS(retval
, "error executing ambiqmicro flash mass erase.");
417 if (retval
!= ERROR_OK
)
421 * Set Bootloader bit, regardless of command execution.
423 retval
= target_write_u32(target
, 0x400201a0, 0x1);
424 CHECK_STATUS(retval
, "error setting bootloader bit.");
430 static int ambiqmicro_erase(struct flash_bank
*bank
, unsigned int first
,
433 struct ambiqmicro_flash_bank
*ambiqmicro_info
= bank
->driver_priv
;
434 struct target
*target
= bank
->target
;
435 uint32_t retval
= ERROR_OK
;
437 if (bank
->target
->state
!= TARGET_HALTED
) {
438 LOG_ERROR("Target not halted");
439 return ERROR_TARGET_NOT_HALTED
;
442 if (!ambiqmicro_info
->probed
) {
443 LOG_ERROR("Target not probed");
444 return ERROR_FLASH_BANK_NOT_PROBED
;
449 * Fix num_pages for the device.
451 if ((last
< first
) || (last
>= ambiqmicro_info
->num_pages
))
452 return ERROR_FLASH_SECTOR_INVALID
;
455 * Just Mass Erase if all pages are given.
456 * TODO: Fix num_pages for the device
458 if ((first
== 0) && (last
== (ambiqmicro_info
->num_pages
- 1)))
459 return ambiqmicro_mass_erase(bank
);
462 * Clear Bootloader bit.
464 retval
= target_write_u32(target
, 0x400201a0, 0x0);
465 CHECK_STATUS(retval
, "error clearing bootloader bit.");
474 retval
= target_write_u32(target
, 0x10000000, bank
->bank_number
);
475 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
478 * Number of pages to erase.
480 retval
= target_write_u32(target
, 0x10000004, 1 + (last
-first
));
481 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
486 retval
= target_write_u32(target
, 0x10000008, PROGRAM_KEY
);
487 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
492 retval
= target_write_u32(target
, 0x1000000c, 0xfffffffe);
493 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
496 * Pointer to flash address.
498 retval
= target_write_u32(target
, 0x10000010, first
);
499 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
500 if (retval
!= ERROR_OK
)
506 LOG_INFO("Erasing pages %u to %u on bank %u", first
, last
, bank
->bank_number
);
509 * passed pc, addr = ROM function, handle breakpoints, not debugging.
511 retval
= ambiqmicro_exec_command(target
, FLASH_ERASE_LIST_MAIN_PAGES_FROM_SRAM
, 0x1000000C);
512 CHECK_STATUS(retval
, "error executing flash page erase");
513 if (retval
!= ERROR_OK
)
516 LOG_INFO("%u pages erased!", 1+(last
-first
));
520 * Set Bootloader bit.
522 retval
= target_write_u32(target
, 0x400201a0, 0x1);
523 CHECK_STATUS(retval
, "error setting bootloader bit.");
524 if (retval
!= ERROR_OK
)
531 static int ambiqmicro_protect(struct flash_bank
*bank
, int set
,
532 unsigned int first
, unsigned int last
)
534 /* struct ambiqmicro_flash_bank *ambiqmicro_info = bank->driver_priv;
535 * struct target *target = bank->target; */
540 LOG_INFO("Not yet implemented");
542 if (bank
->target
->state
!= TARGET_HALTED
) {
543 LOG_ERROR("Target not halted");
544 return ERROR_TARGET_NOT_HALTED
;
550 static int ambiqmicro_write_block(struct flash_bank
*bank
,
551 const uint8_t *buffer
, uint32_t offset
, uint32_t count
)
553 /* struct ambiqmicro_flash_bank *ambiqmicro_info = bank->driver_priv; */
554 struct target
*target
= bank
->target
;
555 uint32_t address
= bank
->base
+ offset
;
556 uint32_t buffer_pointer
= 0x10000010;
558 uint32_t thisrun_count
;
559 int retval
= ERROR_OK
;
561 if (((count
%4) != 0) || ((offset
%4) != 0)) {
562 LOG_ERROR("write block must be multiple of 4 bytes in offset & length");
567 * Max buffer size for this device.
568 * Hard code 6kB for the buffer.
572 LOG_INFO("Flashing main array");
575 if (count
> maxbuffer
)
576 thisrun_count
= maxbuffer
;
578 thisrun_count
= count
;
587 retval
= target_write_u32(target
, 0x10000000, address
);
588 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
591 * Number of 32-bit words to program.
593 retval
= target_write_u32(target
, 0x10000004, thisrun_count
/4);
594 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
599 retval
= target_write_u32(target
, 0x10000008, PROGRAM_KEY
);
600 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
605 retval
= target_write_u32(target
, 0x1000000c, 0xfffffffe);
606 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
611 retval
= target_write_buffer(target
, buffer_pointer
, thisrun_count
, buffer
);
613 if (retval
!= ERROR_OK
) {
614 CHECK_STATUS(retval
, "error writing target SRAM parameters.");
618 LOG_DEBUG("address = 0x%08x", address
);
620 retval
= ambiqmicro_exec_command(target
, FLASH_PROGRAM_MAIN_FROM_SRAM
, 0x1000000c);
621 CHECK_STATUS(retval
, "error executing ambiqmicro flash write algorithm");
622 if (retval
!= ERROR_OK
)
624 buffer
+= thisrun_count
;
625 address
+= thisrun_count
;
626 count
-= thisrun_count
;
630 LOG_INFO("Main array flashed");
633 * Clear Bootloader bit.
635 retval
= target_write_u32(target
, 0x400201a0, 0x0);
636 CHECK_STATUS(retval
, "error clearing bootloader bit");
641 static int ambiqmicro_write(struct flash_bank
*bank
, const uint8_t *buffer
,
642 uint32_t offset
, uint32_t count
)
646 /* try using a block write */
647 retval
= ambiqmicro_write_block(bank
, buffer
, offset
, count
);
648 if (retval
!= ERROR_OK
)
649 LOG_ERROR("write failed");
654 static int ambiqmicro_probe(struct flash_bank
*bank
)
656 struct ambiqmicro_flash_bank
*ambiqmicro_info
= bank
->driver_priv
;
659 /* If this is a ambiqmicro chip, it has flash; probe() is just
660 * to figure out how much is present. Only do it once.
662 if (ambiqmicro_info
->probed
) {
663 LOG_INFO("Target already probed");
667 /* ambiqmicro_read_part_info() already handled error checking and
668 * reporting. Note that it doesn't write, so we don't care about
669 * whether the target is halted or not.
671 retval
= ambiqmicro_read_part_info(bank
);
672 if (retval
!= ERROR_OK
)
677 /* provide this for the benefit of the NOR flash framework */
678 bank
->size
= ambiqmicro_info
->pagesize
* ambiqmicro_info
->num_pages
;
679 bank
->num_sectors
= ambiqmicro_info
->num_pages
;
680 bank
->sectors
= malloc(sizeof(struct flash_sector
) * bank
->num_sectors
);
681 for (unsigned int i
= 0; i
< bank
->num_sectors
; i
++) {
682 bank
->sectors
[i
].offset
= i
* ambiqmicro_info
->pagesize
;
683 bank
->sectors
[i
].size
= ambiqmicro_info
->pagesize
;
684 bank
->sectors
[i
].is_erased
= -1;
685 bank
->sectors
[i
].is_protected
= -1;
689 * Part has been probed.
691 ambiqmicro_info
->probed
= true;
696 static int ambiqmicro_otp_program(struct flash_bank
*bank
,
697 uint32_t offset
, uint32_t count
)
699 struct target
*target
= NULL
;
700 struct ambiqmicro_flash_bank
*ambiqmicro_info
= NULL
;
701 uint32_t retval
= ERROR_OK
;
703 ambiqmicro_info
= bank
->driver_priv
;
704 target
= bank
->target
;
706 if (target
->state
!= TARGET_HALTED
) {
707 LOG_ERROR("Target not halted");
708 return ERROR_TARGET_NOT_HALTED
;
711 if (!ambiqmicro_info
->probed
) {
712 LOG_ERROR("Target not probed");
713 return ERROR_FLASH_BANK_NOT_PROBED
;
717 LOG_ERROR("Count must be < 256");
718 return ERROR_FLASH_DST_BREAKS_ALIGNMENT
;
722 * Clear Bootloader bit.
724 retval
= target_write_u32(target
, 0x400201a0, 0x0);
725 CHECK_STATUS(retval
, "error clearing bootloader bit.");
734 retval
= target_write_u32(target
, 0x10000000, offset
);
735 CHECK_STATUS(retval
, "error setting target SRAM parameters.");
738 * Num of words to program.
740 retval
= target_write_u32(target
, 0x10000004, count
);
741 CHECK_STATUS(retval
, "error setting target SRAM parameters.");
746 retval
= target_write_u32(target
, 0x10000008, OTP_PROGRAM_KEY
);
747 CHECK_STATUS(retval
, "error setting target SRAM parameters.");
752 retval
= target_write_u32(target
, 0x1000000c, 0xfffffffe);
753 CHECK_STATUS(retval
, "error setting target SRAM parameters.");
754 if (retval
!= ERROR_OK
)
760 LOG_INFO("Programming OTP offset 0x%08x", offset
);
763 * passed pc, addr = ROM function, handle breakpoints, not debugging.
765 retval
= ambiqmicro_exec_command(target
, FLASH_PROGRAM_OTP_FROM_SRAM
, 0x1000000C);
766 CHECK_STATUS(retval
, "error executing ambiqmicro otp program algorithm");
768 LOG_INFO("Programming OTP finished.");
775 COMMAND_HANDLER(ambiqmicro_handle_mass_erase_command
)
778 return ERROR_COMMAND_SYNTAX_ERROR
;
780 struct flash_bank
*bank
;
781 uint32_t retval
= CALL_COMMAND_HANDLER(flash_command_get_bank
, 0, &bank
);
782 if (ERROR_OK
!= retval
)
785 if (ambiqmicro_mass_erase(bank
) == ERROR_OK
) {
786 /* set all sectors as erased */
787 for (unsigned int i
= 0; i
< bank
->num_sectors
; i
++)
788 bank
->sectors
[i
].is_erased
= 1;
790 command_print(CMD
, "ambiqmicro mass erase complete");
792 command_print(CMD
, "ambiqmicro mass erase failed");
797 COMMAND_HANDLER(ambiqmicro_handle_page_erase_command
)
799 struct flash_bank
*bank
;
800 uint32_t first
, last
;
804 return ERROR_COMMAND_SYNTAX_ERROR
;
806 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[1], first
);
807 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[2], last
);
809 retval
= CALL_COMMAND_HANDLER(flash_command_get_bank
, 0, &bank
);
810 if (ERROR_OK
!= retval
)
813 if (ambiqmicro_erase(bank
, first
, last
) == ERROR_OK
)
814 command_print(CMD
, "ambiqmicro page erase complete");
816 command_print(CMD
, "ambiqmicro page erase failed");
823 * Program the otp block.
825 COMMAND_HANDLER(ambiqmicro_handle_program_otp_command
)
827 struct flash_bank
*bank
;
828 uint32_t offset
, count
;
832 return ERROR_COMMAND_SYNTAX_ERROR
;
834 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[1], offset
);
835 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[2], count
);
837 command_print(CMD
, "offset=0x%08x count=%d", offset
, count
);
839 CALL_COMMAND_HANDLER(flash_command_get_bank
, 0, &bank
);
841 retval
= ambiqmicro_otp_program(bank
, offset
, count
);
843 if (retval
!= ERROR_OK
)
844 LOG_ERROR("error check log");
851 static const struct command_registration ambiqmicro_exec_command_handlers
[] = {
853 .name
= "mass_erase",
855 .handler
= ambiqmicro_handle_mass_erase_command
,
856 .mode
= COMMAND_EXEC
,
857 .help
= "Erase entire device",
860 .name
= "page_erase",
861 .usage
= "<bank> <first> <last>",
862 .handler
= ambiqmicro_handle_page_erase_command
,
863 .mode
= COMMAND_EXEC
,
864 .help
= "Erase device pages",
867 .name
= "program_otp",
868 .handler
= ambiqmicro_handle_program_otp_command
,
869 .mode
= COMMAND_EXEC
,
870 .usage
= "<bank> <offset> <count>",
872 "Program OTP (assumes you have already written array starting at 0x10000010)",
874 COMMAND_REGISTRATION_DONE
876 static const struct command_registration ambiqmicro_command_handlers
[] = {
878 .name
= "ambiqmicro",
879 .mode
= COMMAND_EXEC
,
880 .help
= "ambiqmicro flash command group",
881 .usage
= "Support for Ambiq Micro parts.",
882 .chain
= ambiqmicro_exec_command_handlers
,
884 COMMAND_REGISTRATION_DONE
887 const struct flash_driver ambiqmicro_flash
= {
888 .name
= "ambiqmicro",
889 .commands
= ambiqmicro_command_handlers
,
890 .flash_bank_command
= ambiqmicro_flash_bank_command
,
891 .erase
= ambiqmicro_erase
,
892 .protect
= ambiqmicro_protect
,
893 .write
= ambiqmicro_write
,
894 .read
= default_flash_read
,
895 .probe
= ambiqmicro_probe
,
896 .auto_probe
= ambiqmicro_probe
,
897 .erase_check
= default_flash_blank_check
,
898 .protect_check
= ambiqmicro_protect_check
,
899 .info
= get_ambiqmicro_info
,
900 .free_driver_priv
= default_flash_free_driver_priv
,
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