1 /***************************************************************************
2 * Copyright (C) 2017 by Texas Instruments, Inc. *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
16 ***************************************************************************/
24 #include <helper/binarybuffer.h>
25 #include <helper/time_support.h>
26 #include <target/algorithm.h>
27 #include <target/armv7m.h>
28 #include <target/image.h>
30 #define FLASH_TIMEOUT 8000
33 const char *family_name
;
37 uint32_t sector_length
;
39 struct working_area
*working_area
;
40 struct armv7m_algorithm armv7m_info
;
41 const uint8_t *algo_code
;
43 uint32_t algo_working_size
;
44 uint32_t buffer_addr
[2];
45 uint32_t params_addr
[2];
48 static int cc26xx_auto_probe(struct flash_bank
*bank
);
50 static uint32_t cc26xx_device_type(uint32_t icepick_id
, uint32_t user_id
)
52 uint32_t device_type
= 0;
54 switch (icepick_id
& ICEPICK_ID_MASK
) {
55 case CC26X0_ICEPICK_ID
:
56 device_type
= CC26X0_TYPE
;
58 case CC26X1_ICEPICK_ID
:
59 device_type
= CC26X1_TYPE
;
61 case CC13X0_ICEPICK_ID
:
62 device_type
= CC13X0_TYPE
;
64 case CC13X2_CC26X2_ICEPICK_ID
:
66 if ((user_id
& USER_ID_CC13_MASK
) != 0)
67 device_type
= CC13X2_TYPE
;
69 device_type
= CC26X2_TYPE
;
76 static uint32_t cc26xx_sector_length(uint32_t icepick_id
)
78 uint32_t sector_length
;
80 switch (icepick_id
& ICEPICK_ID_MASK
) {
81 case CC26X0_ICEPICK_ID
:
82 case CC26X1_ICEPICK_ID
:
83 case CC13X0_ICEPICK_ID
:
84 /* Chameleon family device */
85 sector_length
= CC26X0_SECTOR_LENGTH
;
87 case CC13X2_CC26X2_ICEPICK_ID
:
89 /* Agama family device */
90 sector_length
= CC26X2_SECTOR_LENGTH
;
97 static int cc26xx_wait_algo_done(struct flash_bank
*bank
, uint32_t params_addr
)
99 struct target
*target
= bank
->target
;
100 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
102 uint32_t status_addr
= params_addr
+ CC26XX_STATUS_OFFSET
;
103 uint32_t status
= CC26XX_BUFFER_FULL
;
105 long long elapsed_ms
;
107 int retval
= ERROR_OK
;
109 start_ms
= timeval_ms();
110 while (CC26XX_BUFFER_FULL
== status
) {
111 retval
= target_read_u32(target
, status_addr
, &status
);
112 if (ERROR_OK
!= retval
)
115 elapsed_ms
= timeval_ms() - start_ms
;
116 if (elapsed_ms
> 500)
118 if (elapsed_ms
> FLASH_TIMEOUT
)
122 if (CC26XX_BUFFER_EMPTY
!= status
) {
123 LOG_ERROR("%s: Flash operation failed", cc26xx_bank
->family_name
);
130 static int cc26xx_init(struct flash_bank
*bank
)
132 struct target
*target
= bank
->target
;
133 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
137 /* Make sure we've probed the flash to get the device and size */
138 retval
= cc26xx_auto_probe(bank
);
139 if (ERROR_OK
!= retval
)
142 /* Check for working area to use for flash helper algorithm */
143 if (NULL
!= cc26xx_bank
->working_area
)
144 target_free_working_area(target
, cc26xx_bank
->working_area
);
145 retval
= target_alloc_working_area(target
, cc26xx_bank
->algo_working_size
,
146 &cc26xx_bank
->working_area
);
147 if (ERROR_OK
!= retval
)
150 /* Confirm the defined working address is the area we need to use */
151 if (CC26XX_ALGO_BASE_ADDRESS
!= cc26xx_bank
->working_area
->address
)
152 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
154 /* Write flash helper algorithm into target memory */
155 retval
= target_write_buffer(target
, CC26XX_ALGO_BASE_ADDRESS
,
156 cc26xx_bank
->algo_size
, cc26xx_bank
->algo_code
);
157 if (ERROR_OK
!= retval
) {
158 LOG_ERROR("%s: Failed to load flash helper algorithm",
159 cc26xx_bank
->family_name
);
160 target_free_working_area(target
, cc26xx_bank
->working_area
);
164 /* Initialize the ARMv7 specific info to run the algorithm */
165 cc26xx_bank
->armv7m_info
.common_magic
= ARMV7M_COMMON_MAGIC
;
166 cc26xx_bank
->armv7m_info
.core_mode
= ARM_MODE_THREAD
;
168 /* Begin executing the flash helper algorithm */
169 retval
= target_start_algorithm(target
, 0, NULL
, 0, NULL
,
170 CC26XX_ALGO_BASE_ADDRESS
, 0, &cc26xx_bank
->armv7m_info
);
171 if (ERROR_OK
!= retval
) {
172 LOG_ERROR("%s: Failed to start flash helper algorithm",
173 cc26xx_bank
->family_name
);
174 target_free_working_area(target
, cc26xx_bank
->working_area
);
179 * At this point, the algorithm is running on the target and
180 * ready to receive commands and data to flash the target
186 static int cc26xx_quit(struct flash_bank
*bank
)
188 struct target
*target
= bank
->target
;
189 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
193 /* Regardless of the algo's status, attempt to halt the target */
194 (void)target_halt(target
);
196 /* Now confirm target halted and clean up from flash helper algorithm */
197 retval
= target_wait_algorithm(target
, 0, NULL
, 0, NULL
, 0, FLASH_TIMEOUT
,
198 &cc26xx_bank
->armv7m_info
);
200 target_free_working_area(target
, cc26xx_bank
->working_area
);
201 cc26xx_bank
->working_area
= NULL
;
206 static int cc26xx_mass_erase(struct flash_bank
*bank
)
208 struct target
*target
= bank
->target
;
209 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
210 struct cc26xx_algo_params algo_params
;
214 if (TARGET_HALTED
!= target
->state
) {
215 LOG_ERROR("Target not halted");
216 return ERROR_TARGET_NOT_HALTED
;
219 retval
= cc26xx_init(bank
);
220 if (ERROR_OK
!= retval
)
223 /* Initialize algorithm parameters */
224 buf_set_u32(algo_params
.address
, 0, 32, 0);
225 buf_set_u32(algo_params
.length
, 0, 32, 4);
226 buf_set_u32(algo_params
.command
, 0, 32, CC26XX_CMD_ERASE_ALL
);
227 buf_set_u32(algo_params
.status
, 0, 32, CC26XX_BUFFER_FULL
);
229 /* Issue flash helper algorithm parameters for mass erase */
230 retval
= target_write_buffer(target
, cc26xx_bank
->params_addr
[0],
231 sizeof(algo_params
), (uint8_t *)&algo_params
);
233 /* Wait for command to complete */
234 if (ERROR_OK
== retval
)
235 retval
= cc26xx_wait_algo_done(bank
, cc26xx_bank
->params_addr
[0]);
237 /* Regardless of errors, try to close down algo */
238 (void)cc26xx_quit(bank
);
243 FLASH_BANK_COMMAND_HANDLER(cc26xx_flash_bank_command
)
245 struct cc26xx_bank
*cc26xx_bank
;
248 return ERROR_COMMAND_SYNTAX_ERROR
;
250 cc26xx_bank
= malloc(sizeof(struct cc26xx_bank
));
251 if (NULL
== cc26xx_bank
)
254 /* Initialize private flash information */
255 memset((void *)cc26xx_bank
, 0x00, sizeof(struct cc26xx_bank
));
256 cc26xx_bank
->family_name
= "cc26xx";
257 cc26xx_bank
->device_type
= CC26XX_NO_TYPE
;
258 cc26xx_bank
->sector_length
= 0x1000;
260 /* Finish initialization of bank */
261 bank
->driver_priv
= cc26xx_bank
;
267 static int cc26xx_erase(struct flash_bank
*bank
, int first
, int last
)
269 struct target
*target
= bank
->target
;
270 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
271 struct cc26xx_algo_params algo_params
;
277 if (TARGET_HALTED
!= target
->state
) {
278 LOG_ERROR("Target not halted");
279 return ERROR_TARGET_NOT_HALTED
;
282 /* Do a mass erase if user requested all sectors of flash */
283 if ((first
== 0) && (last
== (bank
->num_sectors
- 1))) {
284 /* Request mass erase of flash */
285 return cc26xx_mass_erase(bank
);
288 address
= first
* cc26xx_bank
->sector_length
;
289 length
= (last
- first
+ 1) * cc26xx_bank
->sector_length
;
291 retval
= cc26xx_init(bank
);
292 if (ERROR_OK
!= retval
)
295 /* Set up algorithm parameters for erase command */
296 buf_set_u32(algo_params
.address
, 0, 32, address
);
297 buf_set_u32(algo_params
.length
, 0, 32, length
);
298 buf_set_u32(algo_params
.command
, 0, 32, CC26XX_CMD_ERASE_SECTORS
);
299 buf_set_u32(algo_params
.status
, 0, 32, CC26XX_BUFFER_FULL
);
301 /* Issue flash helper algorithm parameters for erase */
302 retval
= target_write_buffer(target
, cc26xx_bank
->params_addr
[0],
303 sizeof(algo_params
), (uint8_t *)&algo_params
);
305 /* If no error, wait for erase to finish */
306 if (ERROR_OK
== retval
)
307 retval
= cc26xx_wait_algo_done(bank
, cc26xx_bank
->params_addr
[0]);
309 /* Regardless of errors, try to close down algo */
310 (void)cc26xx_quit(bank
);
315 static int cc26xx_protect(struct flash_bank
*bank
, int set
, int first
,
321 static int cc26xx_write(struct flash_bank
*bank
, const uint8_t *buffer
,
322 uint32_t offset
, uint32_t count
)
324 struct target
*target
= bank
->target
;
325 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
326 struct cc26xx_algo_params algo_params
[2];
329 long long elapsed_ms
;
335 if (TARGET_HALTED
!= target
->state
) {
336 LOG_ERROR("Target not halted");
337 return ERROR_TARGET_NOT_HALTED
;
340 retval
= cc26xx_init(bank
);
341 if (ERROR_OK
!= retval
)
344 /* Initialize algorithm parameters to default values */
345 buf_set_u32(algo_params
[0].command
, 0, 32, CC26XX_CMD_PROGRAM
);
346 buf_set_u32(algo_params
[1].command
, 0, 32, CC26XX_CMD_PROGRAM
);
348 /* Write requested data, ping-ponging between two buffers */
350 start_ms
= timeval_ms();
351 address
= bank
->base
+ offset
;
354 if (count
> cc26xx_bank
->sector_length
)
355 size
= cc26xx_bank
->sector_length
;
359 /* Put next block of data to flash into buffer */
360 retval
= target_write_buffer(target
, cc26xx_bank
->buffer_addr
[index
],
362 if (ERROR_OK
!= retval
) {
363 LOG_ERROR("Unable to write data to target memory");
367 /* Update algo parameters for next block */
368 buf_set_u32(algo_params
[index
].address
, 0, 32, address
);
369 buf_set_u32(algo_params
[index
].length
, 0, 32, size
);
370 buf_set_u32(algo_params
[index
].status
, 0, 32, CC26XX_BUFFER_FULL
);
372 /* Issue flash helper algorithm parameters for block write */
373 retval
= target_write_buffer(target
, cc26xx_bank
->params_addr
[index
],
374 sizeof(algo_params
[index
]), (uint8_t *)&algo_params
[index
]);
375 if (ERROR_OK
!= retval
)
378 /* Wait for next ping pong buffer to be ready */
380 retval
= cc26xx_wait_algo_done(bank
, cc26xx_bank
->params_addr
[index
]);
381 if (ERROR_OK
!= retval
)
388 elapsed_ms
= timeval_ms() - start_ms
;
389 if (elapsed_ms
> 500)
393 /* If no error yet, wait for last buffer to finish */
394 if (ERROR_OK
== retval
) {
396 retval
= cc26xx_wait_algo_done(bank
, cc26xx_bank
->params_addr
[index
]);
399 /* Regardless of errors, try to close down algo */
400 (void)cc26xx_quit(bank
);
405 static int cc26xx_probe(struct flash_bank
*bank
)
407 struct target
*target
= bank
->target
;
408 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
410 uint32_t sector_length
;
417 retval
= target_read_u32(target
, FCFG1_ICEPICK_ID
, &value
);
418 if (ERROR_OK
!= retval
)
420 cc26xx_bank
->icepick_id
= value
;
422 retval
= target_read_u32(target
, FCFG1_USER_ID
, &value
);
423 if (ERROR_OK
!= retval
)
425 cc26xx_bank
->user_id
= value
;
427 cc26xx_bank
->device_type
= cc26xx_device_type(cc26xx_bank
->icepick_id
,
428 cc26xx_bank
->user_id
);
430 sector_length
= cc26xx_sector_length(cc26xx_bank
->icepick_id
);
432 /* Set up appropriate flash helper algorithm */
433 switch (cc26xx_bank
->icepick_id
& ICEPICK_ID_MASK
) {
434 case CC26X0_ICEPICK_ID
:
435 case CC26X1_ICEPICK_ID
:
436 case CC13X0_ICEPICK_ID
:
437 /* Chameleon family device */
438 cc26xx_bank
->algo_code
= cc26x0_algo
;
439 cc26xx_bank
->algo_size
= sizeof(cc26x0_algo
);
440 cc26xx_bank
->algo_working_size
= CC26X0_WORKING_SIZE
;
441 cc26xx_bank
->buffer_addr
[0] = CC26X0_ALGO_BUFFER_0
;
442 cc26xx_bank
->buffer_addr
[1] = CC26X0_ALGO_BUFFER_1
;
443 cc26xx_bank
->params_addr
[0] = CC26X0_ALGO_PARAMS_0
;
444 cc26xx_bank
->params_addr
[1] = CC26X0_ALGO_PARAMS_1
;
445 max_sectors
= CC26X0_MAX_SECTORS
;
447 case CC13X2_CC26X2_ICEPICK_ID
:
449 /* Agama family device */
450 cc26xx_bank
->algo_code
= cc26x2_algo
;
451 cc26xx_bank
->algo_size
= sizeof(cc26x2_algo
);
452 cc26xx_bank
->algo_working_size
= CC26X2_WORKING_SIZE
;
453 cc26xx_bank
->buffer_addr
[0] = CC26X2_ALGO_BUFFER_0
;
454 cc26xx_bank
->buffer_addr
[1] = CC26X2_ALGO_BUFFER_1
;
455 cc26xx_bank
->params_addr
[0] = CC26X2_ALGO_PARAMS_0
;
456 cc26xx_bank
->params_addr
[1] = CC26X2_ALGO_PARAMS_1
;
457 max_sectors
= CC26X2_MAX_SECTORS
;
461 retval
= target_read_u32(target
, CC26XX_FLASH_SIZE_INFO
, &value
);
462 if (ERROR_OK
!= retval
)
464 num_sectors
= value
& 0xff;
465 if (num_sectors
> max_sectors
)
466 num_sectors
= max_sectors
;
468 bank
->sectors
= malloc(sizeof(struct flash_sector
) * num_sectors
);
469 if (NULL
== bank
->sectors
)
472 bank
->base
= CC26XX_FLASH_BASE_ADDR
;
473 bank
->num_sectors
= num_sectors
;
474 bank
->size
= num_sectors
* sector_length
;
475 bank
->write_start_alignment
= 0;
476 bank
->write_end_alignment
= 0;
477 cc26xx_bank
->sector_length
= sector_length
;
479 for (int i
= 0; i
< num_sectors
; i
++) {
480 bank
->sectors
[i
].offset
= i
* sector_length
;
481 bank
->sectors
[i
].size
= sector_length
;
482 bank
->sectors
[i
].is_erased
= -1;
483 bank
->sectors
[i
].is_protected
= 0;
486 /* We've successfully determined the stats on the flash bank */
487 cc26xx_bank
->probed
= true;
489 /* If we fall through to here, then all went well */
494 static int cc26xx_auto_probe(struct flash_bank
*bank
)
496 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
498 int retval
= ERROR_OK
;
500 if (bank
->bank_number
!= 0) {
501 /* Invalid bank number somehow */
505 if (!cc26xx_bank
->probed
)
506 retval
= cc26xx_probe(bank
);
511 static int cc26xx_protect_check(struct flash_bank
*bank
)
516 static int cc26xx_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
518 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
522 switch (cc26xx_bank
->device_type
) {
540 device
= "Unrecognized";
544 printed
= snprintf(buf
, buf_size
,
545 "%s device: ICEPick ID 0x%08x, USER ID 0x%08x\n",
546 device
, cc26xx_bank
->icepick_id
, cc26xx_bank
->user_id
);
548 if (printed
>= buf_size
)
549 return ERROR_BUF_TOO_SMALL
;
554 struct flash_driver cc26xx_flash
= {
556 .flash_bank_command
= cc26xx_flash_bank_command
,
557 .erase
= cc26xx_erase
,
558 .protect
= cc26xx_protect
,
559 .write
= cc26xx_write
,
560 .read
= default_flash_read
,
561 .probe
= cc26xx_probe
,
562 .auto_probe
= cc26xx_auto_probe
,
563 .erase_check
= default_flash_blank_check
,
564 .protect_check
= cc26xx_protect_check
,
566 .free_driver_priv
= default_flash_free_driver_priv
,
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