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 (status
== CC26XX_BUFFER_FULL
) {
111 retval
= target_read_u32(target
, status_addr
, &status
);
112 if (retval
!= ERROR_OK
)
115 elapsed_ms
= timeval_ms() - start_ms
;
116 if (elapsed_ms
> 500)
118 if (elapsed_ms
> FLASH_TIMEOUT
)
122 if (status
!= CC26XX_BUFFER_EMPTY
) {
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 (retval
!= ERROR_OK
)
142 /* Check for working area to use for flash helper algorithm */
143 if (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 (retval
!= ERROR_OK
)
150 /* Confirm the defined working address is the area we need to use */
151 if (cc26xx_bank
->working_area
->address
!= CC26XX_ALGO_BASE_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 (retval
!= ERROR_OK
) {
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 (retval
!= ERROR_OK
) {
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
->state
!= TARGET_HALTED
) {
215 LOG_ERROR("Target not halted");
216 return ERROR_TARGET_NOT_HALTED
;
219 retval
= cc26xx_init(bank
);
220 if (retval
!= ERROR_OK
)
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 (retval
== ERROR_OK
)
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
));
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
, unsigned int first
,
270 struct target
*target
= bank
->target
;
271 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
272 struct cc26xx_algo_params algo_params
;
278 if (target
->state
!= TARGET_HALTED
) {
279 LOG_ERROR("Target not halted");
280 return ERROR_TARGET_NOT_HALTED
;
283 /* Do a mass erase if user requested all sectors of flash */
284 if ((first
== 0) && (last
== (bank
->num_sectors
- 1))) {
285 /* Request mass erase of flash */
286 return cc26xx_mass_erase(bank
);
289 address
= first
* cc26xx_bank
->sector_length
;
290 length
= (last
- first
+ 1) * cc26xx_bank
->sector_length
;
292 retval
= cc26xx_init(bank
);
293 if (retval
!= ERROR_OK
)
296 /* Set up algorithm parameters for erase command */
297 buf_set_u32(algo_params
.address
, 0, 32, address
);
298 buf_set_u32(algo_params
.length
, 0, 32, length
);
299 buf_set_u32(algo_params
.command
, 0, 32, CC26XX_CMD_ERASE_SECTORS
);
300 buf_set_u32(algo_params
.status
, 0, 32, CC26XX_BUFFER_FULL
);
302 /* Issue flash helper algorithm parameters for erase */
303 retval
= target_write_buffer(target
, cc26xx_bank
->params_addr
[0],
304 sizeof(algo_params
), (uint8_t *)&algo_params
);
306 /* If no error, wait for erase to finish */
307 if (retval
== ERROR_OK
)
308 retval
= cc26xx_wait_algo_done(bank
, cc26xx_bank
->params_addr
[0]);
310 /* Regardless of errors, try to close down algo */
311 (void)cc26xx_quit(bank
);
316 static int cc26xx_write(struct flash_bank
*bank
, const uint8_t *buffer
,
317 uint32_t offset
, uint32_t count
)
319 struct target
*target
= bank
->target
;
320 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
321 struct cc26xx_algo_params algo_params
[2];
324 long long elapsed_ms
;
330 if (target
->state
!= TARGET_HALTED
) {
331 LOG_ERROR("Target not halted");
332 return ERROR_TARGET_NOT_HALTED
;
335 retval
= cc26xx_init(bank
);
336 if (retval
!= ERROR_OK
)
339 /* Initialize algorithm parameters to default values */
340 buf_set_u32(algo_params
[0].command
, 0, 32, CC26XX_CMD_PROGRAM
);
341 buf_set_u32(algo_params
[1].command
, 0, 32, CC26XX_CMD_PROGRAM
);
343 /* Write requested data, ping-ponging between two buffers */
345 start_ms
= timeval_ms();
346 address
= bank
->base
+ offset
;
349 if (count
> cc26xx_bank
->sector_length
)
350 size
= cc26xx_bank
->sector_length
;
354 /* Put next block of data to flash into buffer */
355 retval
= target_write_buffer(target
, cc26xx_bank
->buffer_addr
[index
],
357 if (retval
!= ERROR_OK
) {
358 LOG_ERROR("Unable to write data to target memory");
362 /* Update algo parameters for next block */
363 buf_set_u32(algo_params
[index
].address
, 0, 32, address
);
364 buf_set_u32(algo_params
[index
].length
, 0, 32, size
);
365 buf_set_u32(algo_params
[index
].status
, 0, 32, CC26XX_BUFFER_FULL
);
367 /* Issue flash helper algorithm parameters for block write */
368 retval
= target_write_buffer(target
, cc26xx_bank
->params_addr
[index
],
369 sizeof(algo_params
[index
]), (uint8_t *)&algo_params
[index
]);
370 if (retval
!= ERROR_OK
)
373 /* Wait for next ping pong buffer to be ready */
375 retval
= cc26xx_wait_algo_done(bank
, cc26xx_bank
->params_addr
[index
]);
376 if (retval
!= ERROR_OK
)
383 elapsed_ms
= timeval_ms() - start_ms
;
384 if (elapsed_ms
> 500)
388 /* If no error yet, wait for last buffer to finish */
389 if (retval
== ERROR_OK
) {
391 retval
= cc26xx_wait_algo_done(bank
, cc26xx_bank
->params_addr
[index
]);
394 /* Regardless of errors, try to close down algo */
395 (void)cc26xx_quit(bank
);
400 static int cc26xx_probe(struct flash_bank
*bank
)
402 struct target
*target
= bank
->target
;
403 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
405 uint32_t sector_length
;
412 retval
= target_read_u32(target
, FCFG1_ICEPICK_ID
, &value
);
413 if (retval
!= ERROR_OK
)
415 cc26xx_bank
->icepick_id
= value
;
417 retval
= target_read_u32(target
, FCFG1_USER_ID
, &value
);
418 if (retval
!= ERROR_OK
)
420 cc26xx_bank
->user_id
= value
;
422 cc26xx_bank
->device_type
= cc26xx_device_type(cc26xx_bank
->icepick_id
,
423 cc26xx_bank
->user_id
);
425 sector_length
= cc26xx_sector_length(cc26xx_bank
->icepick_id
);
427 /* Set up appropriate flash helper algorithm */
428 switch (cc26xx_bank
->icepick_id
& ICEPICK_ID_MASK
) {
429 case CC26X0_ICEPICK_ID
:
430 case CC26X1_ICEPICK_ID
:
431 case CC13X0_ICEPICK_ID
:
432 /* Chameleon family device */
433 cc26xx_bank
->algo_code
= cc26x0_algo
;
434 cc26xx_bank
->algo_size
= sizeof(cc26x0_algo
);
435 cc26xx_bank
->algo_working_size
= CC26X0_WORKING_SIZE
;
436 cc26xx_bank
->buffer_addr
[0] = CC26X0_ALGO_BUFFER_0
;
437 cc26xx_bank
->buffer_addr
[1] = CC26X0_ALGO_BUFFER_1
;
438 cc26xx_bank
->params_addr
[0] = CC26X0_ALGO_PARAMS_0
;
439 cc26xx_bank
->params_addr
[1] = CC26X0_ALGO_PARAMS_1
;
440 max_sectors
= CC26X0_MAX_SECTORS
;
442 case CC13X2_CC26X2_ICEPICK_ID
:
444 /* Agama family device */
445 cc26xx_bank
->algo_code
= cc26x2_algo
;
446 cc26xx_bank
->algo_size
= sizeof(cc26x2_algo
);
447 cc26xx_bank
->algo_working_size
= CC26X2_WORKING_SIZE
;
448 cc26xx_bank
->buffer_addr
[0] = CC26X2_ALGO_BUFFER_0
;
449 cc26xx_bank
->buffer_addr
[1] = CC26X2_ALGO_BUFFER_1
;
450 cc26xx_bank
->params_addr
[0] = CC26X2_ALGO_PARAMS_0
;
451 cc26xx_bank
->params_addr
[1] = CC26X2_ALGO_PARAMS_1
;
452 max_sectors
= CC26X2_MAX_SECTORS
;
456 retval
= target_read_u32(target
, CC26XX_FLASH_SIZE_INFO
, &value
);
457 if (retval
!= ERROR_OK
)
459 num_sectors
= value
& 0xff;
460 if (num_sectors
> max_sectors
)
461 num_sectors
= max_sectors
;
463 bank
->sectors
= malloc(sizeof(struct flash_sector
) * num_sectors
);
467 bank
->base
= CC26XX_FLASH_BASE_ADDR
;
468 bank
->num_sectors
= num_sectors
;
469 bank
->size
= num_sectors
* sector_length
;
470 bank
->write_start_alignment
= 0;
471 bank
->write_end_alignment
= 0;
472 cc26xx_bank
->sector_length
= sector_length
;
474 for (int i
= 0; i
< num_sectors
; i
++) {
475 bank
->sectors
[i
].offset
= i
* sector_length
;
476 bank
->sectors
[i
].size
= sector_length
;
477 bank
->sectors
[i
].is_erased
= -1;
478 bank
->sectors
[i
].is_protected
= 0;
481 /* We've successfully determined the stats on the flash bank */
482 cc26xx_bank
->probed
= true;
484 /* If we fall through to here, then all went well */
489 static int cc26xx_auto_probe(struct flash_bank
*bank
)
491 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
493 int retval
= ERROR_OK
;
495 if (!cc26xx_bank
->probed
)
496 retval
= cc26xx_probe(bank
);
501 static int cc26xx_info(struct flash_bank
*bank
, struct command_invocation
*cmd
)
503 struct cc26xx_bank
*cc26xx_bank
= bank
->driver_priv
;
506 switch (cc26xx_bank
->device_type
) {
524 device
= "Unrecognized";
528 command_print_sameline(cmd
,
529 "%s device: ICEPick ID 0x%08" PRIx32
", USER ID 0x%08" PRIx32
"\n",
530 device
, cc26xx_bank
->icepick_id
, cc26xx_bank
->user_id
);
535 const struct flash_driver cc26xx_flash
= {
537 .flash_bank_command
= cc26xx_flash_bank_command
,
538 .erase
= cc26xx_erase
,
539 .write
= cc26xx_write
,
540 .read
= default_flash_read
,
541 .probe
= cc26xx_probe
,
542 .auto_probe
= cc26xx_auto_probe
,
543 .erase_check
= default_flash_blank_check
,
545 .free_driver_priv
= default_flash_free_driver_priv
,
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