1 /***************************************************************************
2 * Copyright (C) 2006 by Magnus Lundin *
5 * Copyright (C) 2008 by Spencer Oliver *
6 * spen@spen-soft.co.uk *
8 * Copyright (C) 2009-2010 by Oyvind Harboe *
9 * oyvind.harboe@zylin.com *
11 * Copyright (C) 2009-2010 by David Brownell *
13 * Copyright (C) 2013 by Andreas Fritiofson *
14 * andreas.fritiofson@gmail.com *
16 * Copyright (C) 2019-2021, Ampere Computing LLC *
18 * This program is free software; you can redistribute it and/or modify *
19 * it under the terms of the GNU General Public License as published by *
20 * the Free Software Foundation; either version 2 of the License, or *
21 * (at your option) any later version. *
23 * This program is distributed in the hope that it will be useful, *
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
26 * GNU General Public License for more details. *
28 * You should have received a copy of the GNU General Public License *
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
30 ***************************************************************************/
34 * This file implements support for the ARM Debug Interface version 5 (ADIv5)
35 * debugging architecture. Compared with previous versions, this includes
36 * a low pin-count Serial Wire Debug (SWD) alternative to JTAG for message
37 * transport, and focuses on memory mapped resources as defined by the
38 * CoreSight architecture.
40 * A key concept in ADIv5 is the Debug Access Port, or DAP. A DAP has two
41 * basic components: a Debug Port (DP) transporting messages to and from a
42 * debugger, and an Access Port (AP) accessing resources. Three types of DP
43 * are defined. One uses only JTAG for communication, and is called JTAG-DP.
44 * One uses only SWD for communication, and is called SW-DP. The third can
45 * use either SWD or JTAG, and is called SWJ-DP. The most common type of AP
46 * is used to access memory mapped resources and is called a MEM-AP. Also a
47 * JTAG-AP is also defined, bridging to JTAG resources; those are uncommon.
49 * This programming interface allows DAP pipelined operations through a
50 * transaction queue. This primarily affects AP operations (such as using
51 * a MEM-AP to access memory or registers). If the current transaction has
52 * not finished by the time the next one must begin, and the ORUNDETECT bit
53 * is set in the DP_CTRL_STAT register, the SSTICKYORUN status is set and
54 * further AP operations will fail. There are two basic methods to avoid
55 * such overrun errors. One involves polling for status instead of using
56 * transaction pipelining. The other involves adding delays to ensure the
57 * AP has enough time to complete one operation before starting the next
58 * one. (For JTAG these delays are controlled by memaccess_tck.)
62 * Relevant specifications from ARM include:
64 * ARM(tm) Debug Interface v5 Architecture Specification ARM IHI 0031E
65 * CoreSight(tm) v1.0 Architecture Specification ARM IHI 0029B
67 * CoreSight(tm) DAP-Lite TRM, ARM DDI 0316D
68 * Cortex-M3(tm) TRM, ARM DDI 0337G
75 #include "jtag/interface.h"
77 #include "arm_adi_v5.h"
78 #include "arm_coresight.h"
80 #include "transport/transport.h"
81 #include <helper/align.h>
82 #include <helper/jep106.h>
83 #include <helper/time_support.h>
84 #include <helper/list.h>
85 #include <helper/jim-nvp.h>
87 /* ARM ADI Specification requires at least 10 bits used for TAR autoincrement */
90 uint32_t tar_block_size(uint32_t address)
91 Return the largest block starting at address that does not cross a tar block size alignment boundary
93 static uint32_t max_tar_block_size(uint32_t tar_autoincr_block, target_addr_t address)
95 return tar_autoincr_block - ((tar_autoincr_block - 1) & address);
98 /***************************************************************************
100 * DP and MEM-AP register access through APACC and DPACC *
102 ***************************************************************************/
104 static int mem_ap_setup_csw(struct adiv5_ap *ap, uint32_t csw)
106 csw |= ap->csw_default;
108 if (csw != ap->csw_value) {
109 /* LOG_DEBUG("DAP: Set CSW %x",csw); */
110 int retval = dap_queue_ap_write(ap, MEM_AP_REG_CSW, csw);
111 if (retval != ERROR_OK) {
120 static int mem_ap_setup_tar(struct adiv5_ap *ap, target_addr_t tar)
122 if (!ap->tar_valid || tar != ap->tar_value) {
123 /* LOG_DEBUG("DAP: Set TAR %x",tar); */
124 int retval = dap_queue_ap_write(ap, MEM_AP_REG_TAR, (uint32_t)(tar & 0xffffffffUL));
125 if (retval == ERROR_OK && is_64bit_ap(ap)) {
126 /* See if bits 63:32 of tar is different from last setting */
127 if ((ap->tar_value >> 32) != (tar >> 32))
128 retval = dap_queue_ap_write(ap, MEM_AP_REG_TAR64, (uint32_t)(tar >> 32));
130 if (retval != ERROR_OK) {
131 ap->tar_valid = false;
135 ap->tar_valid = true;
140 static int mem_ap_read_tar(struct adiv5_ap *ap, target_addr_t *tar)
145 int retval = dap_queue_ap_read(ap, MEM_AP_REG_TAR, &lower);
146 if (retval == ERROR_OK && is_64bit_ap(ap))
147 retval = dap_queue_ap_read(ap, MEM_AP_REG_TAR64, &upper);
149 if (retval != ERROR_OK) {
150 ap->tar_valid = false;
154 retval = dap_run(ap->dap);
155 if (retval != ERROR_OK) {
156 ap->tar_valid = false;
160 *tar = (((target_addr_t)upper) << 32) | (target_addr_t)lower;
162 ap->tar_value = *tar;
163 ap->tar_valid = true;
167 static uint32_t mem_ap_get_tar_increment(struct adiv5_ap *ap)
169 switch (ap->csw_value & CSW_ADDRINC_MASK) {
170 case CSW_ADDRINC_SINGLE:
171 switch (ap->csw_value & CSW_SIZE_MASK) {
181 case CSW_ADDRINC_PACKED:
187 /* mem_ap_update_tar_cache is called after an access to MEM_AP_REG_DRW
189 static void mem_ap_update_tar_cache(struct adiv5_ap *ap)
194 uint32_t inc = mem_ap_get_tar_increment(ap);
195 if (inc >= max_tar_block_size(ap->tar_autoincr_block, ap->tar_value))
196 ap->tar_valid = false;
198 ap->tar_value += inc;
202 * Queue transactions setting up transfer parameters for the
203 * currently selected MEM-AP.
205 * Subsequent transfers using registers like MEM_AP_REG_DRW or MEM_AP_REG_BD2
206 * initiate data reads or writes using memory or peripheral addresses.
207 * If the CSW is configured for it, the TAR may be automatically
208 * incremented after each transfer.
210 * @param ap The MEM-AP.
211 * @param csw MEM-AP Control/Status Word (CSW) register to assign. If this
212 * matches the cached value, the register is not changed.
213 * @param tar MEM-AP Transfer Address Register (TAR) to assign. If this
214 * matches the cached address, the register is not changed.
216 * @return ERROR_OK if the transaction was properly queued, else a fault code.
218 static int mem_ap_setup_transfer(struct adiv5_ap *ap, uint32_t csw, target_addr_t tar)
221 retval = mem_ap_setup_csw(ap, csw);
222 if (retval != ERROR_OK)
224 retval = mem_ap_setup_tar(ap, tar);
225 if (retval != ERROR_OK)
231 * Asynchronous (queued) read of a word from memory or a system register.
233 * @param ap The MEM-AP to access.
234 * @param address Address of the 32-bit word to read; it must be
235 * readable by the currently selected MEM-AP.
236 * @param value points to where the word will be stored when the
237 * transaction queue is flushed (assuming no errors).
239 * @return ERROR_OK for success. Otherwise a fault code.
241 int mem_ap_read_u32(struct adiv5_ap *ap, target_addr_t address,
246 /* Use banked addressing (REG_BDx) to avoid some link traffic
247 * (updating TAR) when reading several consecutive addresses.
249 retval = mem_ap_setup_transfer(ap,
250 CSW_32BIT | (ap->csw_value & CSW_ADDRINC_MASK),
251 address & 0xFFFFFFFFFFFFFFF0ull);
252 if (retval != ERROR_OK)
255 return dap_queue_ap_read(ap, MEM_AP_REG_BD0 | (address & 0xC), value);
259 * Synchronous read of a word from memory or a system register.
260 * As a side effect, this flushes any queued transactions.
262 * @param ap The MEM-AP to access.
263 * @param address Address of the 32-bit word to read; it must be
264 * readable by the currently selected MEM-AP.
265 * @param value points to where the result will be stored.
267 * @return ERROR_OK for success; *value holds the result.
268 * Otherwise a fault code.
270 int mem_ap_read_atomic_u32(struct adiv5_ap *ap, target_addr_t address,
275 retval = mem_ap_read_u32(ap, address, value);
276 if (retval != ERROR_OK)
279 return dap_run(ap->dap);
283 * Asynchronous (queued) write of a word to memory or a system register.
285 * @param ap The MEM-AP to access.
286 * @param address Address to be written; it must be writable by
287 * the currently selected MEM-AP.
288 * @param value Word that will be written to the address when transaction
289 * queue is flushed (assuming no errors).
291 * @return ERROR_OK for success. Otherwise a fault code.
293 int mem_ap_write_u32(struct adiv5_ap *ap, target_addr_t address,
298 /* Use banked addressing (REG_BDx) to avoid some link traffic
299 * (updating TAR) when writing several consecutive addresses.
301 retval = mem_ap_setup_transfer(ap,
302 CSW_32BIT | (ap->csw_value & CSW_ADDRINC_MASK),
303 address & 0xFFFFFFFFFFFFFFF0ull);
304 if (retval != ERROR_OK)
307 return dap_queue_ap_write(ap, MEM_AP_REG_BD0 | (address & 0xC),
312 * Synchronous write of a word to memory or a system register.
313 * As a side effect, this flushes any queued transactions.
315 * @param ap The MEM-AP to access.
316 * @param address Address to be written; it must be writable by
317 * the currently selected MEM-AP.
318 * @param value Word that will be written.
320 * @return ERROR_OK for success; the data was written. Otherwise a fault code.
322 int mem_ap_write_atomic_u32(struct adiv5_ap *ap, target_addr_t address,
325 int retval = mem_ap_write_u32(ap, address, value);
327 if (retval != ERROR_OK)
330 return dap_run(ap->dap);
334 * Synchronous write of a block of memory, using a specific access size.
336 * @param ap The MEM-AP to access.
337 * @param buffer The data buffer to write. No particular alignment is assumed.
338 * @param size Which access size to use, in bytes. 1, 2 or 4.
339 * @param count The number of writes to do (in size units, not bytes).
340 * @param address Address to be written; it must be writable by the currently selected MEM-AP.
341 * @param addrinc Whether the target address should be increased for each write or not. This
342 * should normally be true, except when writing to e.g. a FIFO.
343 * @return ERROR_OK on success, otherwise an error code.
345 static int mem_ap_write(struct adiv5_ap *ap, const uint8_t *buffer, uint32_t size, uint32_t count,
346 target_addr_t address, bool addrinc)
348 struct adiv5_dap *dap = ap->dap;
349 size_t nbytes = size * count;
350 const uint32_t csw_addrincr = addrinc ? CSW_ADDRINC_SINGLE : CSW_ADDRINC_OFF;
352 target_addr_t addr_xor;
353 int retval = ERROR_OK;
355 /* TI BE-32 Quirks mode:
356 * Writes on big-endian TMS570 behave very strangely. Observed behavior:
357 * size write address bytes written in order
358 * 4 TAR ^ 0 (val >> 24), (val >> 16), (val >> 8), (val)
359 * 2 TAR ^ 2 (val >> 8), (val)
361 * For example, if you attempt to write a single byte to address 0, the processor
362 * will actually write a byte to address 3.
364 * To make writes of size < 4 work as expected, we xor a value with the address before
365 * setting the TAP, and we set the TAP after every transfer rather then relying on
366 * address increment. */
369 csw_size = CSW_32BIT;
371 } else if (size == 2) {
372 csw_size = CSW_16BIT;
373 addr_xor = dap->ti_be_32_quirks ? 2 : 0;
374 } else if (size == 1) {
376 addr_xor = dap->ti_be_32_quirks ? 3 : 0;
378 return ERROR_TARGET_UNALIGNED_ACCESS;
381 if (ap->unaligned_access_bad && (address % size != 0))
382 return ERROR_TARGET_UNALIGNED_ACCESS;
385 uint32_t this_size = size;
387 /* Select packed transfer if possible */
388 if (addrinc && ap->packed_transfers && nbytes >= 4
389 && max_tar_block_size(ap->tar_autoincr_block, address) >= 4) {
391 retval = mem_ap_setup_csw(ap, csw_size | CSW_ADDRINC_PACKED);
393 retval = mem_ap_setup_csw(ap, csw_size | csw_addrincr);
396 if (retval != ERROR_OK)
399 retval = mem_ap_setup_tar(ap, address ^ addr_xor);
400 if (retval != ERROR_OK)
403 /* How many source bytes each transfer will consume, and their location in the DRW,
404 * depends on the type of transfer and alignment. See ARM document IHI0031C. */
405 uint32_t outvalue = 0;
406 uint32_t drw_byte_idx = address;
407 if (dap->ti_be_32_quirks) {
410 outvalue |= (uint32_t)*buffer++ << 8 * (3 ^ (drw_byte_idx++ & 3) ^ addr_xor);
411 outvalue |= (uint32_t)*buffer++ << 8 * (3 ^ (drw_byte_idx++ & 3) ^ addr_xor);
412 outvalue |= (uint32_t)*buffer++ << 8 * (3 ^ (drw_byte_idx++ & 3) ^ addr_xor);
413 outvalue |= (uint32_t)*buffer++ << 8 * (3 ^ (drw_byte_idx & 3) ^ addr_xor);
416 outvalue |= (uint32_t)*buffer++ << 8 * (1 ^ (drw_byte_idx++ & 3) ^ addr_xor);
417 outvalue |= (uint32_t)*buffer++ << 8 * (1 ^ (drw_byte_idx & 3) ^ addr_xor);
420 outvalue |= (uint32_t)*buffer++ << 8 * (0 ^ (drw_byte_idx & 3) ^ addr_xor);
426 outvalue |= (uint32_t)*buffer++ << 8 * (drw_byte_idx++ & 3);
427 outvalue |= (uint32_t)*buffer++ << 8 * (drw_byte_idx++ & 3);
430 outvalue |= (uint32_t)*buffer++ << 8 * (drw_byte_idx++ & 3);
433 outvalue |= (uint32_t)*buffer++ << 8 * (drw_byte_idx & 3);
439 retval = dap_queue_ap_write(ap, MEM_AP_REG_DRW, outvalue);
440 if (retval != ERROR_OK)
443 mem_ap_update_tar_cache(ap);
445 address += this_size;
448 /* REVISIT: Might want to have a queued version of this function that does not run. */
449 if (retval == ERROR_OK)
450 retval = dap_run(dap);
452 if (retval != ERROR_OK) {
454 if (mem_ap_read_tar(ap, &tar) == ERROR_OK)
455 LOG_ERROR("Failed to write memory at " TARGET_ADDR_FMT, tar);
457 LOG_ERROR("Failed to write memory and, additionally, failed to find out where");
464 * Synchronous read of a block of memory, using a specific access size.
466 * @param ap The MEM-AP to access.
467 * @param buffer The data buffer to receive the data. No particular alignment is assumed.
468 * @param size Which access size to use, in bytes. 1, 2 or 4.
469 * @param count The number of reads to do (in size units, not bytes).
470 * @param adr Address to be read; it must be readable by the currently selected MEM-AP.
471 * @param addrinc Whether the target address should be increased after each read or not. This
472 * should normally be true, except when reading from e.g. a FIFO.
473 * @return ERROR_OK on success, otherwise an error code.
475 static int mem_ap_read(struct adiv5_ap *ap, uint8_t *buffer, uint32_t size, uint32_t count,
476 target_addr_t adr, bool addrinc)
478 struct adiv5_dap *dap = ap->dap;
479 size_t nbytes = size * count;
480 const uint32_t csw_addrincr = addrinc ? CSW_ADDRINC_SINGLE : CSW_ADDRINC_OFF;
482 target_addr_t address = adr;
483 int retval = ERROR_OK;
485 /* TI BE-32 Quirks mode:
486 * Reads on big-endian TMS570 behave strangely differently than writes.
487 * They read from the physical address requested, but with DRW byte-reversed.
488 * For example, a byte read from address 0 will place the result in the high bytes of DRW.
489 * Also, packed 8-bit and 16-bit transfers seem to sometimes return garbage in some bytes,
493 csw_size = CSW_32BIT;
495 csw_size = CSW_16BIT;
499 return ERROR_TARGET_UNALIGNED_ACCESS;
501 if (ap->unaligned_access_bad && (adr % size != 0))
502 return ERROR_TARGET_UNALIGNED_ACCESS;
504 /* Allocate buffer to hold the sequence of DRW reads that will be made. This is a significant
505 * over-allocation if packed transfers are going to be used, but determining the real need at
506 * this point would be messy. */
507 uint32_t *read_buf = calloc(count, sizeof(uint32_t));
508 /* Multiplication count * sizeof(uint32_t) may overflow, calloc() is safe */
509 uint32_t *read_ptr = read_buf;
511 LOG_ERROR("Failed to allocate read buffer");
515 /* Queue up all reads. Each read will store the entire DRW word in the read buffer. How many
516 * useful bytes it contains, and their location in the word, depends on the type of transfer
519 uint32_t this_size = size;
521 /* Select packed transfer if possible */
522 if (addrinc && ap->packed_transfers && nbytes >= 4
523 && max_tar_block_size(ap->tar_autoincr_block, address) >= 4) {
525 retval = mem_ap_setup_csw(ap, csw_size | CSW_ADDRINC_PACKED);
527 retval = mem_ap_setup_csw(ap, csw_size | csw_addrincr);
529 if (retval != ERROR_OK)
532 retval = mem_ap_setup_tar(ap, address);
533 if (retval != ERROR_OK)
536 retval = dap_queue_ap_read(ap, MEM_AP_REG_DRW, read_ptr++);
537 if (retval != ERROR_OK)
542 address += this_size;
544 mem_ap_update_tar_cache(ap);
547 if (retval == ERROR_OK)
548 retval = dap_run(dap);
552 nbytes = size * count;
555 /* If something failed, read TAR to find out how much data was successfully read, so we can
556 * at least give the caller what we have. */
557 if (retval != ERROR_OK) {
559 if (mem_ap_read_tar(ap, &tar) == ERROR_OK) {
560 /* TAR is incremented after failed transfer on some devices (eg Cortex-M4) */
561 LOG_ERROR("Failed to read memory at " TARGET_ADDR_FMT, tar);
562 if (nbytes > tar - address)
563 nbytes = tar - address;
565 LOG_ERROR("Failed to read memory and, additionally, failed to find out where");
570 /* Replay loop to populate caller's buffer from the correct word and byte lane */
572 uint32_t this_size = size;
574 if (addrinc && ap->packed_transfers && nbytes >= 4
575 && max_tar_block_size(ap->tar_autoincr_block, address) >= 4) {
579 if (dap->ti_be_32_quirks) {
582 *buffer++ = *read_ptr >> 8 * (3 - (address++ & 3));
583 *buffer++ = *read_ptr >> 8 * (3 - (address++ & 3));
586 *buffer++ = *read_ptr >> 8 * (3 - (address++ & 3));
589 *buffer++ = *read_ptr >> 8 * (3 - (address++ & 3));
594 *buffer++ = *read_ptr >> 8 * (address++ & 3);
595 *buffer++ = *read_ptr >> 8 * (address++ & 3);
598 *buffer++ = *read_ptr >> 8 * (address++ & 3);
601 *buffer++ = *read_ptr >> 8 * (address++ & 3);
613 int mem_ap_read_buf(struct adiv5_ap *ap,
614 uint8_t *buffer, uint32_t size, uint32_t count, target_addr_t address)
616 return mem_ap_read(ap, buffer, size, count, address, true);
619 int mem_ap_write_buf(struct adiv5_ap *ap,
620 const uint8_t *buffer, uint32_t size, uint32_t count, target_addr_t address)
622 return mem_ap_write(ap, buffer, size, count, address, true);
625 int mem_ap_read_buf_noincr(struct adiv5_ap *ap,
626 uint8_t *buffer, uint32_t size, uint32_t count, target_addr_t address)
628 return mem_ap_read(ap, buffer, size, count, address, false);
631 int mem_ap_write_buf_noincr(struct adiv5_ap *ap,
632 const uint8_t *buffer, uint32_t size, uint32_t count, target_addr_t address)
634 return mem_ap_write(ap, buffer, size, count, address, false);
637 /*--------------------------------------------------------------------------*/
640 #define DAP_POWER_DOMAIN_TIMEOUT (10)
642 /*--------------------------------------------------------------------------*/
645 * Invalidate cached DP select and cached TAR and CSW of all APs
647 void dap_invalidate_cache(struct adiv5_dap *dap)
649 dap->select = DP_SELECT_INVALID;
650 dap->last_read = NULL;
653 for (i = 0; i <= DP_APSEL_MAX; i++) {
654 /* force csw and tar write on the next mem-ap access */
655 dap->ap[i].tar_valid = false;
656 dap->ap[i].csw_value = 0;
661 * Initialize a DAP. This sets up the power domains, prepares the DP
662 * for further use and activates overrun checking.
664 * @param dap The DAP being initialized.
666 int dap_dp_init(struct adiv5_dap *dap)
670 LOG_DEBUG("%s", adiv5_dap_name(dap));
672 dap->do_reconnect = false;
673 dap_invalidate_cache(dap);
676 * Early initialize dap->dp_ctrl_stat.
677 * In jtag mode only, if the following queue run (in dap_dp_poll_register)
678 * fails and sets the sticky error, it will trigger the clearing
679 * of the sticky. Without this initialization system and debug power
680 * would be disabled while clearing the sticky error bit.
682 dap->dp_ctrl_stat = CDBGPWRUPREQ | CSYSPWRUPREQ;
685 * This write operation clears the sticky error bit in jtag mode only and
686 * is ignored in swd mode. It also powers-up system and debug domains in
687 * both jtag and swd modes, if not done before.
689 retval = dap_queue_dp_write(dap, DP_CTRL_STAT, dap->dp_ctrl_stat | SSTICKYERR);
690 if (retval != ERROR_OK)
693 retval = dap_queue_dp_read(dap, DP_CTRL_STAT, NULL);
694 if (retval != ERROR_OK)
697 retval = dap_queue_dp_write(dap, DP_CTRL_STAT, dap->dp_ctrl_stat);
698 if (retval != ERROR_OK)
701 /* Check that we have debug power domains activated */
702 LOG_DEBUG("DAP: wait CDBGPWRUPACK");
703 retval = dap_dp_poll_register(dap, DP_CTRL_STAT,
704 CDBGPWRUPACK, CDBGPWRUPACK,
705 DAP_POWER_DOMAIN_TIMEOUT);
706 if (retval != ERROR_OK)
709 if (!dap->ignore_syspwrupack) {
710 LOG_DEBUG("DAP: wait CSYSPWRUPACK");
711 retval = dap_dp_poll_register(dap, DP_CTRL_STAT,
712 CSYSPWRUPACK, CSYSPWRUPACK,
713 DAP_POWER_DOMAIN_TIMEOUT);
714 if (retval != ERROR_OK)
718 retval = dap_queue_dp_read(dap, DP_CTRL_STAT, NULL);
719 if (retval != ERROR_OK)
722 /* With debug power on we can activate OVERRUN checking */
723 dap->dp_ctrl_stat = CDBGPWRUPREQ | CSYSPWRUPREQ | CORUNDETECT;
724 retval = dap_queue_dp_write(dap, DP_CTRL_STAT, dap->dp_ctrl_stat);
725 if (retval != ERROR_OK)
727 retval = dap_queue_dp_read(dap, DP_CTRL_STAT, NULL);
728 if (retval != ERROR_OK)
731 retval = dap_run(dap);
732 if (retval != ERROR_OK)
739 * Initialize a DAP or do reconnect if DAP is not accessible.
741 * @param dap The DAP being initialized.
743 int dap_dp_init_or_reconnect(struct adiv5_dap *dap)
745 LOG_DEBUG("%s", adiv5_dap_name(dap));
748 * Early initialize dap->dp_ctrl_stat.
749 * In jtag mode only, if the following atomic reads fail and set the
750 * sticky error, it will trigger the clearing of the sticky. Without this
751 * initialization system and debug power would be disabled while clearing
752 * the sticky error bit.
754 dap->dp_ctrl_stat = CDBGPWRUPREQ | CSYSPWRUPREQ;
756 dap->do_reconnect = false;
758 dap_dp_read_atomic(dap, DP_CTRL_STAT, NULL);
759 if (dap->do_reconnect) {
760 /* dap connect calls dap_dp_init() after transport dependent initialization */
761 return dap->ops->connect(dap);
763 return dap_dp_init(dap);
768 * Initialize a DAP. This sets up the power domains, prepares the DP
769 * for further use, and arranges to use AP #0 for all AP operations
770 * until dap_ap-select() changes that policy.
772 * @param ap The MEM-AP being initialized.
774 int mem_ap_init(struct adiv5_ap *ap)
776 /* check that we support packed transfers */
779 struct adiv5_dap *dap = ap->dap;
781 /* Set ap->cfg_reg before calling mem_ap_setup_transfer(). */
782 /* mem_ap_setup_transfer() needs to know if the MEM_AP supports LPAE. */
783 retval = dap_queue_ap_read(ap, MEM_AP_REG_CFG, &cfg);
784 if (retval != ERROR_OK)
787 retval = dap_run(dap);
788 if (retval != ERROR_OK)
792 ap->tar_valid = false;
793 ap->csw_value = 0; /* force csw and tar write */
794 retval = mem_ap_setup_transfer(ap, CSW_8BIT | CSW_ADDRINC_PACKED, 0);
795 if (retval != ERROR_OK)
798 retval = dap_queue_ap_read(ap, MEM_AP_REG_CSW, &csw);
799 if (retval != ERROR_OK)
802 retval = dap_run(dap);
803 if (retval != ERROR_OK)
806 if (csw & CSW_ADDRINC_PACKED)
807 ap->packed_transfers = true;
809 ap->packed_transfers = false;
811 /* Packed transfers on TI BE-32 processors do not work correctly in
813 if (dap->ti_be_32_quirks)
814 ap->packed_transfers = false;
816 LOG_DEBUG("MEM_AP Packed Transfers: %s",
817 ap->packed_transfers ? "enabled" : "disabled");
819 /* The ARM ADI spec leaves implementation-defined whether unaligned
820 * memory accesses work, only work partially, or cause a sticky error.
821 * On TI BE-32 processors, reads seem to return garbage in some bytes
822 * and unaligned writes seem to cause a sticky error.
823 * TODO: it would be nice to have a way to detect whether unaligned
824 * operations are supported on other processors. */
825 ap->unaligned_access_bad = dap->ti_be_32_quirks;
827 LOG_DEBUG("MEM_AP CFG: large data %d, long address %d, big-endian %d",
828 !!(cfg & MEM_AP_REG_CFG_LD), !!(cfg & MEM_AP_REG_CFG_LA), !!(cfg & MEM_AP_REG_CFG_BE));
834 * Put the debug link into SWD mode, if the target supports it.
835 * The link's initial mode may be either JTAG (for example,
836 * with SWJ-DP after reset) or SWD.
838 * Note that targets using the JTAG-DP do not support SWD, and that
839 * some targets which could otherwise support it may have been
840 * configured to disable SWD signaling
842 * @param dap The DAP used
843 * @return ERROR_OK or else a fault code.
845 int dap_to_swd(struct adiv5_dap *dap)
847 LOG_DEBUG("Enter SWD mode");
849 return dap_send_sequence(dap, JTAG_TO_SWD);
853 * Put the debug link into JTAG mode, if the target supports it.
854 * The link's initial mode may be either SWD or JTAG.
856 * Note that targets implemented with SW-DP do not support JTAG, and
857 * that some targets which could otherwise support it may have been
858 * configured to disable JTAG signaling
860 * @param dap The DAP used
861 * @return ERROR_OK or else a fault code.
863 int dap_to_jtag(struct adiv5_dap *dap)
865 LOG_DEBUG("Enter JTAG mode");
867 return dap_send_sequence(dap, SWD_TO_JTAG);
870 /* CID interpretation -- see ARM IHI 0029E table B2-7
871 * and ARM IHI 0031E table D1-2.
873 * From 2009/11/25 commit 21378f58b604:
874 * "OptimoDE DESS" is ARM's semicustom DSPish stuff.
875 * Let's keep it as is, for the time being
877 static const char *class_description[16] = {
878 [0x0] = "Generic verification component",
887 [0x9] = "CoreSight component",
889 [0xB] = "Peripheral Test Block",
891 [0xD] = "OptimoDE DESS", /* see above */
892 [0xE] = "Generic IP component",
893 [0xF] = "CoreLink, PrimeCell or System component",
896 #define ARCH_ID(architect, archid) ( \
897 (((architect) << ARM_CS_C9_DEVARCH_ARCHITECT_SHIFT) & ARM_CS_C9_DEVARCH_ARCHITECT_MASK) | \
898 (((archid) << ARM_CS_C9_DEVARCH_ARCHID_SHIFT) & ARM_CS_C9_DEVARCH_ARCHID_MASK) \
901 static const struct {
903 const char *description;
904 } class0x9_devarch[] = {
905 /* keep same unsorted order as in ARM IHI0029E */
906 { ARCH_ID(ARM_ID, 0x0A00), "RAS architecture" },
907 { ARCH_ID(ARM_ID, 0x1A01), "Instrumentation Trace Macrocell (ITM) architecture" },
908 { ARCH_ID(ARM_ID, 0x1A02), "DWT architecture" },
909 { ARCH_ID(ARM_ID, 0x1A03), "Flash Patch and Breakpoint unit (FPB) architecture" },
910 { ARCH_ID(ARM_ID, 0x2A04), "Processor debug architecture (ARMv8-M)" },
911 { ARCH_ID(ARM_ID, 0x6A05), "Processor debug architecture (ARMv8-R)" },
912 { ARCH_ID(ARM_ID, 0x0A10), "PC sample-based profiling" },
913 { ARCH_ID(ARM_ID, 0x4A13), "Embedded Trace Macrocell (ETM) architecture" },
914 { ARCH_ID(ARM_ID, 0x1A14), "Cross Trigger Interface (CTI) architecture" },
915 { ARCH_ID(ARM_ID, 0x6A15), "Processor debug architecture (v8.0-A)" },
916 { ARCH_ID(ARM_ID, 0x7A15), "Processor debug architecture (v8.1-A)" },
917 { ARCH_ID(ARM_ID, 0x8A15), "Processor debug architecture (v8.2-A)" },
918 { ARCH_ID(ARM_ID, 0x2A16), "Processor Performance Monitor (PMU) architecture" },
919 { ARCH_ID(ARM_ID, 0x0A17), "Memory Access Port v2 architecture" },
920 { ARCH_ID(ARM_ID, 0x0A27), "JTAG Access Port v2 architecture" },
921 { ARCH_ID(ARM_ID, 0x0A31), "Basic trace router" },
922 { ARCH_ID(ARM_ID, 0x0A37), "Power requestor" },
923 { ARCH_ID(ARM_ID, 0x0A47), "Unknown Access Port v2 architecture" },
924 { ARCH_ID(ARM_ID, 0x0A50), "HSSTP architecture" },
925 { ARCH_ID(ARM_ID, 0x0A63), "System Trace Macrocell (STM) architecture" },
926 { ARCH_ID(ARM_ID, 0x0A75), "CoreSight ELA architecture" },
927 { ARCH_ID(ARM_ID, 0x0AF7), "CoreSight ROM architecture" },
930 #define DEVARCH_ID_MASK (ARM_CS_C9_DEVARCH_ARCHITECT_MASK | ARM_CS_C9_DEVARCH_ARCHID_MASK)
931 #define DEVARCH_ROM_C_0X9 ARCH_ID(ARM_ID, 0x0AF7)
933 static const char *class0x9_devarch_description(uint32_t devarch)
935 if (!(devarch & ARM_CS_C9_DEVARCH_PRESENT))
936 return "not present";
938 for (unsigned int i = 0; i < ARRAY_SIZE(class0x9_devarch); i++)
939 if ((devarch & DEVARCH_ID_MASK) == class0x9_devarch[i].arch_id)
940 return class0x9_devarch[i].description;
945 static const struct {
947 const char *description;
949 { AP_TYPE_JTAG_AP, "JTAG-AP" },
950 { AP_TYPE_COM_AP, "COM-AP" },
951 { AP_TYPE_AHB3_AP, "MEM-AP AHB3" },
952 { AP_TYPE_APB_AP, "MEM-AP APB2 or APB3" },
953 { AP_TYPE_AXI_AP, "MEM-AP AXI3 or AXI4" },
954 { AP_TYPE_AHB5_AP, "MEM-AP AHB5" },
955 { AP_TYPE_APB4_AP, "MEM-AP APB4" },
956 { AP_TYPE_AXI5_AP, "MEM-AP AXI5" },
957 { AP_TYPE_AHB5H_AP, "MEM-AP AHB5 with enhanced HPROT" },
960 static const char *ap_type_to_description(enum ap_type type)
962 for (unsigned int i = 0; i < ARRAY_SIZE(ap_types); i++)
963 if (type == ap_types[i].type)
964 return ap_types[i].description;
970 * This function checks the ID for each access port to find the requested Access Port type
972 int dap_find_ap(struct adiv5_dap *dap, enum ap_type type_to_find, struct adiv5_ap **ap_out)
976 /* Maximum AP number is 255 since the SELECT register is 8 bits */
977 for (ap_num = 0; ap_num <= DP_APSEL_MAX; ap_num++) {
979 /* read the IDR register of the Access Port */
982 int retval = dap_queue_ap_read(dap_ap(dap, ap_num), AP_REG_IDR, &id_val);
983 if (retval != ERROR_OK)
986 retval = dap_run(dap);
988 /* Reading register for a non-existent AP should not cause an error,
989 * but just to be sure, try to continue searching if an error does happen.
991 if (retval == ERROR_OK && (id_val & AP_TYPE_MASK) == type_to_find) {
992 LOG_DEBUG("Found %s at AP index: %d (IDR=0x%08" PRIX32 ")",
993 ap_type_to_description(type_to_find),
996 *ap_out = &dap->ap[ap_num];
1001 LOG_DEBUG("No %s found", ap_type_to_description(type_to_find));
1005 int dap_get_debugbase(struct adiv5_ap *ap,
1006 target_addr_t *dbgbase, uint32_t *apid)
1008 struct adiv5_dap *dap = ap->dap;
1010 uint32_t baseptr_upper, baseptr_lower;
1012 if (ap->cfg_reg == MEM_AP_REG_CFG_INVALID) {
1013 retval = dap_queue_ap_read(ap, MEM_AP_REG_CFG, &ap->cfg_reg);
1014 if (retval != ERROR_OK)
1017 retval = dap_queue_ap_read(ap, MEM_AP_REG_BASE, &baseptr_lower);
1018 if (retval != ERROR_OK)
1020 retval = dap_queue_ap_read(ap, AP_REG_IDR, apid);
1021 if (retval != ERROR_OK)
1023 /* MEM_AP_REG_BASE64 is defined as 'RES0'; can be read and then ignored on 32 bits AP */
1024 if (ap->cfg_reg == MEM_AP_REG_CFG_INVALID || is_64bit_ap(ap)) {
1025 retval = dap_queue_ap_read(ap, MEM_AP_REG_BASE64, &baseptr_upper);
1026 if (retval != ERROR_OK)
1030 retval = dap_run(dap);
1031 if (retval != ERROR_OK)
1034 if (!is_64bit_ap(ap))
1036 *dbgbase = (((target_addr_t)baseptr_upper) << 32) | baseptr_lower;
1041 int dap_lookup_cs_component(struct adiv5_ap *ap,
1042 target_addr_t dbgbase, uint8_t type, target_addr_t *addr, int32_t *idx)
1044 uint32_t romentry, entry_offset = 0, devtype;
1045 target_addr_t component_base;
1048 dbgbase &= 0xFFFFFFFFFFFFF000ull;
1052 retval = mem_ap_read_atomic_u32(ap, dbgbase |
1053 entry_offset, &romentry);
1054 if (retval != ERROR_OK)
1057 component_base = dbgbase + (target_addr_t)(romentry & ARM_CS_ROMENTRY_OFFSET_MASK);
1059 if (romentry & ARM_CS_ROMENTRY_PRESENT) {
1061 retval = mem_ap_read_atomic_u32(ap, component_base + ARM_CS_CIDR1, &c_cid1);
1062 if (retval != ERROR_OK) {
1063 LOG_ERROR("Can't read component with base address " TARGET_ADDR_FMT
1064 ", the corresponding core might be turned off", component_base);
1067 unsigned int class = (c_cid1 & ARM_CS_CIDR1_CLASS_MASK) >> ARM_CS_CIDR1_CLASS_SHIFT;
1068 if (class == ARM_CS_CLASS_0X1_ROM_TABLE) {
1069 retval = dap_lookup_cs_component(ap, component_base,
1071 if (retval == ERROR_OK)
1073 if (retval != ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1077 retval = mem_ap_read_atomic_u32(ap, component_base + ARM_CS_C9_DEVTYPE, &devtype);
1078 if (retval != ERROR_OK)
1080 if ((devtype & ARM_CS_C9_DEVTYPE_MASK) == type) {
1082 *addr = component_base;
1089 } while ((romentry > 0) && (entry_offset < 0xf00));
1092 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1097 static int dap_read_part_id(struct adiv5_ap *ap, target_addr_t component_base, uint32_t *cid, uint64_t *pid)
1099 assert(IS_ALIGNED(component_base, ARM_CS_ALIGN));
1100 assert(ap && cid && pid);
1102 uint32_t cid0, cid1, cid2, cid3;
1103 uint32_t pid0, pid1, pid2, pid3, pid4;
1106 /* IDs are in last 4K section */
1107 retval = mem_ap_read_u32(ap, component_base + ARM_CS_PIDR0, &pid0);
1108 if (retval != ERROR_OK)
1110 retval = mem_ap_read_u32(ap, component_base + ARM_CS_PIDR1, &pid1);
1111 if (retval != ERROR_OK)
1113 retval = mem_ap_read_u32(ap, component_base + ARM_CS_PIDR2, &pid2);
1114 if (retval != ERROR_OK)
1116 retval = mem_ap_read_u32(ap, component_base + ARM_CS_PIDR3, &pid3);
1117 if (retval != ERROR_OK)
1119 retval = mem_ap_read_u32(ap, component_base + ARM_CS_PIDR4, &pid4);
1120 if (retval != ERROR_OK)
1122 retval = mem_ap_read_u32(ap, component_base + ARM_CS_CIDR0, &cid0);
1123 if (retval != ERROR_OK)
1125 retval = mem_ap_read_u32(ap, component_base + ARM_CS_CIDR1, &cid1);
1126 if (retval != ERROR_OK)
1128 retval = mem_ap_read_u32(ap, component_base + ARM_CS_CIDR2, &cid2);
1129 if (retval != ERROR_OK)
1131 retval = mem_ap_read_u32(ap, component_base + ARM_CS_CIDR3, &cid3);
1132 if (retval != ERROR_OK)
1135 retval = dap_run(ap->dap);
1136 if (retval != ERROR_OK)
1139 *cid = (cid3 & 0xff) << 24
1140 | (cid2 & 0xff) << 16
1141 | (cid1 & 0xff) << 8
1143 *pid = (uint64_t)(pid4 & 0xff) << 32
1144 | (pid3 & 0xff) << 24
1145 | (pid2 & 0xff) << 16
1146 | (pid1 & 0xff) << 8
1152 /* Part number interpretations are from Cortex
1153 * core specs, the CoreSight components TRM
1154 * (ARM DDI 0314H), CoreSight System Design
1155 * Guide (ARM DGI 0012D) and ETM specs; also
1156 * from chip observation (e.g. TI SDTI).
1159 static const struct dap_part_nums {
1160 uint16_t designer_id;
1164 } dap_part_nums[] = {
1165 { ARM_ID, 0x000, "Cortex-M3 SCS", "(System Control Space)", },
1166 { ARM_ID, 0x001, "Cortex-M3 ITM", "(Instrumentation Trace Module)", },
1167 { ARM_ID, 0x002, "Cortex-M3 DWT", "(Data Watchpoint and Trace)", },
1168 { ARM_ID, 0x003, "Cortex-M3 FPB", "(Flash Patch and Breakpoint)", },
1169 { ARM_ID, 0x008, "Cortex-M0 SCS", "(System Control Space)", },
1170 { ARM_ID, 0x00a, "Cortex-M0 DWT", "(Data Watchpoint and Trace)", },
1171 { ARM_ID, 0x00b, "Cortex-M0 BPU", "(Breakpoint Unit)", },
1172 { ARM_ID, 0x00c, "Cortex-M4 SCS", "(System Control Space)", },
1173 { ARM_ID, 0x00d, "CoreSight ETM11", "(Embedded Trace)", },
1174 { ARM_ID, 0x00e, "Cortex-M7 FPB", "(Flash Patch and Breakpoint)", },
1175 { ARM_ID, 0x193, "SoC-600 TSGEN", "(Timestamp Generator)", },
1176 { ARM_ID, 0x470, "Cortex-M1 ROM", "(ROM Table)", },
1177 { ARM_ID, 0x471, "Cortex-M0 ROM", "(ROM Table)", },
1178 { ARM_ID, 0x490, "Cortex-A15 GIC", "(Generic Interrupt Controller)", },
1179 { ARM_ID, 0x492, "Cortex-R52 GICD", "(Distributor)", },
1180 { ARM_ID, 0x493, "Cortex-R52 GICR", "(Redistributor)", },
1181 { ARM_ID, 0x4a1, "Cortex-A53 ROM", "(v8 Memory Map ROM Table)", },
1182 { ARM_ID, 0x4a2, "Cortex-A57 ROM", "(ROM Table)", },
1183 { ARM_ID, 0x4a3, "Cortex-A53 ROM", "(v7 Memory Map ROM Table)", },
1184 { ARM_ID, 0x4a4, "Cortex-A72 ROM", "(ROM Table)", },
1185 { ARM_ID, 0x4a9, "Cortex-A9 ROM", "(ROM Table)", },
1186 { ARM_ID, 0x4aa, "Cortex-A35 ROM", "(v8 Memory Map ROM Table)", },
1187 { ARM_ID, 0x4af, "Cortex-A15 ROM", "(ROM Table)", },
1188 { ARM_ID, 0x4b5, "Cortex-R5 ROM", "(ROM Table)", },
1189 { ARM_ID, 0x4b8, "Cortex-R52 ROM", "(ROM Table)", },
1190 { ARM_ID, 0x4c0, "Cortex-M0+ ROM", "(ROM Table)", },
1191 { ARM_ID, 0x4c3, "Cortex-M3 ROM", "(ROM Table)", },
1192 { ARM_ID, 0x4c4, "Cortex-M4 ROM", "(ROM Table)", },
1193 { ARM_ID, 0x4c7, "Cortex-M7 PPB ROM", "(Private Peripheral Bus ROM Table)", },
1194 { ARM_ID, 0x4c8, "Cortex-M7 ROM", "(ROM Table)", },
1195 { ARM_ID, 0x4e0, "Cortex-A35 ROM", "(v7 Memory Map ROM Table)", },
1196 { ARM_ID, 0x4e4, "Cortex-A76 ROM", "(ROM Table)", },
1197 { ARM_ID, 0x906, "CoreSight CTI", "(Cross Trigger)", },
1198 { ARM_ID, 0x907, "CoreSight ETB", "(Trace Buffer)", },
1199 { ARM_ID, 0x908, "CoreSight CSTF", "(Trace Funnel)", },
1200 { ARM_ID, 0x909, "CoreSight ATBR", "(Advanced Trace Bus Replicator)", },
1201 { ARM_ID, 0x910, "CoreSight ETM9", "(Embedded Trace)", },
1202 { ARM_ID, 0x912, "CoreSight TPIU", "(Trace Port Interface Unit)", },
1203 { ARM_ID, 0x913, "CoreSight ITM", "(Instrumentation Trace Macrocell)", },
1204 { ARM_ID, 0x914, "CoreSight SWO", "(Single Wire Output)", },
1205 { ARM_ID, 0x917, "CoreSight HTM", "(AHB Trace Macrocell)", },
1206 { ARM_ID, 0x920, "CoreSight ETM11", "(Embedded Trace)", },
1207 { ARM_ID, 0x921, "Cortex-A8 ETM", "(Embedded Trace)", },
1208 { ARM_ID, 0x922, "Cortex-A8 CTI", "(Cross Trigger)", },
1209 { ARM_ID, 0x923, "Cortex-M3 TPIU", "(Trace Port Interface Unit)", },
1210 { ARM_ID, 0x924, "Cortex-M3 ETM", "(Embedded Trace)", },
1211 { ARM_ID, 0x925, "Cortex-M4 ETM", "(Embedded Trace)", },
1212 { ARM_ID, 0x930, "Cortex-R4 ETM", "(Embedded Trace)", },
1213 { ARM_ID, 0x931, "Cortex-R5 ETM", "(Embedded Trace)", },
1214 { ARM_ID, 0x932, "CoreSight MTB-M0+", "(Micro Trace Buffer)", },
1215 { ARM_ID, 0x941, "CoreSight TPIU-Lite", "(Trace Port Interface Unit)", },
1216 { ARM_ID, 0x950, "Cortex-A9 PTM", "(Program Trace Macrocell)", },
1217 { ARM_ID, 0x955, "Cortex-A5 ETM", "(Embedded Trace)", },
1218 { ARM_ID, 0x95a, "Cortex-A72 ETM", "(Embedded Trace)", },
1219 { ARM_ID, 0x95b, "Cortex-A17 PTM", "(Program Trace Macrocell)", },
1220 { ARM_ID, 0x95d, "Cortex-A53 ETM", "(Embedded Trace)", },
1221 { ARM_ID, 0x95e, "Cortex-A57 ETM", "(Embedded Trace)", },
1222 { ARM_ID, 0x95f, "Cortex-A15 PTM", "(Program Trace Macrocell)", },
1223 { ARM_ID, 0x961, "CoreSight TMC", "(Trace Memory Controller)", },
1224 { ARM_ID, 0x962, "CoreSight STM", "(System Trace Macrocell)", },
1225 { ARM_ID, 0x975, "Cortex-M7 ETM", "(Embedded Trace)", },
1226 { ARM_ID, 0x9a0, "CoreSight PMU", "(Performance Monitoring Unit)", },
1227 { ARM_ID, 0x9a1, "Cortex-M4 TPIU", "(Trace Port Interface Unit)", },
1228 { ARM_ID, 0x9a4, "CoreSight GPR", "(Granular Power Requester)", },
1229 { ARM_ID, 0x9a5, "Cortex-A5 PMU", "(Performance Monitor Unit)", },
1230 { ARM_ID, 0x9a7, "Cortex-A7 PMU", "(Performance Monitor Unit)", },
1231 { ARM_ID, 0x9a8, "Cortex-A53 CTI", "(Cross Trigger)", },
1232 { ARM_ID, 0x9a9, "Cortex-M7 TPIU", "(Trace Port Interface Unit)", },
1233 { ARM_ID, 0x9ae, "Cortex-A17 PMU", "(Performance Monitor Unit)", },
1234 { ARM_ID, 0x9af, "Cortex-A15 PMU", "(Performance Monitor Unit)", },
1235 { ARM_ID, 0x9b6, "Cortex-R52 PMU/CTI/ETM", "(Performance Monitor Unit/Cross Trigger/ETM)", },
1236 { ARM_ID, 0x9b7, "Cortex-R7 PMU", "(Performance Monitor Unit)", },
1237 { ARM_ID, 0x9d3, "Cortex-A53 PMU", "(Performance Monitor Unit)", },
1238 { ARM_ID, 0x9d7, "Cortex-A57 PMU", "(Performance Monitor Unit)", },
1239 { ARM_ID, 0x9d8, "Cortex-A72 PMU", "(Performance Monitor Unit)", },
1240 { ARM_ID, 0x9da, "Cortex-A35 PMU/CTI/ETM", "(Performance Monitor Unit/Cross Trigger/ETM)", },
1241 { ARM_ID, 0x9e2, "SoC-600 APB-AP", "(APB4 Memory Access Port)", },
1242 { ARM_ID, 0x9e3, "SoC-600 AHB-AP", "(AHB5 Memory Access Port)", },
1243 { ARM_ID, 0x9e4, "SoC-600 AXI-AP", "(AXI Memory Access Port)", },
1244 { ARM_ID, 0x9e5, "SoC-600 APv1 Adapter", "(Access Port v1 Adapter)", },
1245 { ARM_ID, 0x9e6, "SoC-600 JTAG-AP", "(JTAG Access Port)", },
1246 { ARM_ID, 0x9e7, "SoC-600 TPIU", "(Trace Port Interface Unit)", },
1247 { ARM_ID, 0x9e8, "SoC-600 TMC ETR/ETS", "(Embedded Trace Router/Streamer)", },
1248 { ARM_ID, 0x9e9, "SoC-600 TMC ETB", "(Embedded Trace Buffer)", },
1249 { ARM_ID, 0x9ea, "SoC-600 TMC ETF", "(Embedded Trace FIFO)", },
1250 { ARM_ID, 0x9eb, "SoC-600 ATB Funnel", "(Trace Funnel)", },
1251 { ARM_ID, 0x9ec, "SoC-600 ATB Replicator", "(Trace Replicator)", },
1252 { ARM_ID, 0x9ed, "SoC-600 CTI", "(Cross Trigger)", },
1253 { ARM_ID, 0x9ee, "SoC-600 CATU", "(Address Translation Unit)", },
1254 { ARM_ID, 0xc05, "Cortex-A5 Debug", "(Debug Unit)", },
1255 { ARM_ID, 0xc07, "Cortex-A7 Debug", "(Debug Unit)", },
1256 { ARM_ID, 0xc08, "Cortex-A8 Debug", "(Debug Unit)", },
1257 { ARM_ID, 0xc09, "Cortex-A9 Debug", "(Debug Unit)", },
1258 { ARM_ID, 0xc0e, "Cortex-A17 Debug", "(Debug Unit)", },
1259 { ARM_ID, 0xc0f, "Cortex-A15 Debug", "(Debug Unit)", },
1260 { ARM_ID, 0xc14, "Cortex-R4 Debug", "(Debug Unit)", },
1261 { ARM_ID, 0xc15, "Cortex-R5 Debug", "(Debug Unit)", },
1262 { ARM_ID, 0xc17, "Cortex-R7 Debug", "(Debug Unit)", },
1263 { ARM_ID, 0xd03, "Cortex-A53 Debug", "(Debug Unit)", },
1264 { ARM_ID, 0xd04, "Cortex-A35 Debug", "(Debug Unit)", },
1265 { ARM_ID, 0xd07, "Cortex-A57 Debug", "(Debug Unit)", },
1266 { ARM_ID, 0xd08, "Cortex-A72 Debug", "(Debug Unit)", },
1267 { ARM_ID, 0xd0b, "Cortex-A76 Debug", "(Debug Unit)", },
1268 { ARM_ID, 0xd0c, "Neoverse N1", "(Debug Unit)", },
1269 { ARM_ID, 0xd13, "Cortex-R52 Debug", "(Debug Unit)", },
1270 { ARM_ID, 0xd49, "Neoverse N2", "(Debug Unit)", },
1271 { 0x017, 0x120, "TI SDTI", "(System Debug Trace Interface)", }, /* from OMAP3 memmap */
1272 { 0x017, 0x343, "TI DAPCTL", "", }, /* from OMAP3 memmap */
1273 { 0x017, 0x9af, "MSP432 ROM", "(ROM Table)" },
1274 { 0x01f, 0xcd0, "Atmel CPU with DSU", "(CPU)" },
1275 { 0x041, 0x1db, "XMC4500 ROM", "(ROM Table)" },
1276 { 0x041, 0x1df, "XMC4700/4800 ROM", "(ROM Table)" },
1277 { 0x041, 0x1ed, "XMC1000 ROM", "(ROM Table)" },
1278 { 0x065, 0x000, "SHARC+/Blackfin+", "", },
1279 { 0x070, 0x440, "Qualcomm QDSS Component v1", "(Qualcomm Designed CoreSight Component v1)", },
1280 { 0x0bf, 0x100, "Brahma-B53 Debug", "(Debug Unit)", },
1281 { 0x0bf, 0x9d3, "Brahma-B53 PMU", "(Performance Monitor Unit)", },
1282 { 0x0bf, 0x4a1, "Brahma-B53 ROM", "(ROM Table)", },
1283 { 0x0bf, 0x721, "Brahma-B53 ROM", "(ROM Table)", },
1284 { 0x1eb, 0x181, "Tegra 186 ROM", "(ROM Table)", },
1285 { 0x1eb, 0x202, "Denver ETM", "(Denver Embedded Trace)", },
1286 { 0x1eb, 0x211, "Tegra 210 ROM", "(ROM Table)", },
1287 { 0x1eb, 0x302, "Denver Debug", "(Debug Unit)", },
1288 { 0x1eb, 0x402, "Denver PMU", "(Performance Monitor Unit)", },
1291 static const struct dap_part_nums *pidr_to_part_num(unsigned int designer_id, unsigned int part_num)
1293 static const struct dap_part_nums unknown = {
1294 .type = "Unrecognized",
1298 for (unsigned int i = 0; i < ARRAY_SIZE(dap_part_nums); i++)
1299 if (dap_part_nums[i].designer_id == designer_id && dap_part_nums[i].part_num == part_num)
1300 return &dap_part_nums[i];
1305 static int dap_devtype_display(struct command_invocation *cmd, uint32_t devtype)
1307 const char *major = "Reserved", *subtype = "Reserved";
1308 const unsigned int minor = (devtype & ARM_CS_C9_DEVTYPE_SUB_MASK) >> ARM_CS_C9_DEVTYPE_SUB_SHIFT;
1309 const unsigned int devtype_major = (devtype & ARM_CS_C9_DEVTYPE_MAJOR_MASK) >> ARM_CS_C9_DEVTYPE_MAJOR_SHIFT;
1310 switch (devtype_major) {
1312 major = "Miscellaneous";
1318 subtype = "Validation component";
1323 major = "Trace Sink";
1340 major = "Trace Link";
1346 subtype = "Funnel, router";
1352 subtype = "FIFO, buffer";
1357 major = "Trace Source";
1363 subtype = "Processor";
1369 subtype = "Engine/Coprocessor";
1375 subtype = "Software";
1380 major = "Debug Control";
1386 subtype = "Trigger Matrix";
1389 subtype = "Debug Auth";
1392 subtype = "Power Requestor";
1397 major = "Debug Logic";
1403 subtype = "Processor";
1409 subtype = "Engine/Coprocessor";
1420 major = "Performance Monitor";
1426 subtype = "Processor";
1432 subtype = "Engine/Coprocessor";
1443 command_print(cmd, "\t\tType is 0x%02x, %s, %s",
1444 devtype & ARM_CS_C9_DEVTYPE_MASK,
1449 static int dap_rom_display(struct command_invocation *cmd,
1450 struct adiv5_ap *ap, target_addr_t dbgbase, int depth)
1452 unsigned int rom_num_entries;
1459 command_print(cmd, "\tTables too deep");
1464 snprintf(tabs, sizeof(tabs), "[L%02d] ", depth);
1466 target_addr_t base_addr = dbgbase & 0xFFFFFFFFFFFFF000ull;
1467 command_print(cmd, "\t\tComponent base address " TARGET_ADDR_FMT, base_addr);
1469 retval = dap_read_part_id(ap, base_addr, &cid, &pid);
1470 if (retval != ERROR_OK) {
1471 command_print(cmd, "\t\tCan't read component, the corresponding core might be turned off");
1472 return ERROR_OK; /* Don't abort recursion */
1475 if (!is_valid_arm_cs_cidr(cid)) {
1476 command_print(cmd, "\t\tInvalid CID 0x%08" PRIx32, cid);
1477 return ERROR_OK; /* Don't abort recursion */
1480 /* component may take multiple 4K pages */
1481 uint32_t size = ARM_CS_PIDR_SIZE(pid);
1483 command_print(cmd, "\t\tStart address " TARGET_ADDR_FMT, base_addr - 0x1000 * size);
1485 command_print(cmd, "\t\tPeripheral ID 0x%010" PRIx64, pid);
1487 const unsigned int class = ARM_CS_CIDR_CLASS(cid);
1488 const unsigned int part_num = ARM_CS_PIDR_PART(pid);
1489 unsigned int designer_id = ARM_CS_PIDR_DESIGNER(pid);
1491 if (pid & ARM_CS_PIDR_JEDEC) {
1493 command_print(cmd, "\t\tDesigner is 0x%03x, %s",
1494 designer_id, jep106_manufacturer(designer_id));
1496 /* Legacy ASCII ID, clear invalid bits */
1497 designer_id &= 0x7f;
1498 command_print(cmd, "\t\tDesigner ASCII code 0x%02x, %s",
1499 designer_id, designer_id == 0x41 ? "ARM" : "<unknown>");
1502 const struct dap_part_nums *partnum = pidr_to_part_num(designer_id, part_num);
1503 command_print(cmd, "\t\tPart is 0x%03x, %s %s", part_num, partnum->type, partnum->full);
1504 command_print(cmd, "\t\tComponent class is 0x%x, %s", class, class_description[class]);
1506 if (class == ARM_CS_CLASS_0X1_ROM_TABLE) {
1508 retval = mem_ap_read_atomic_u32(ap, base_addr + ARM_CS_C1_MEMTYPE, &memtype);
1509 if (retval != ERROR_OK)
1512 if (memtype & ARM_CS_C1_MEMTYPE_SYSMEM_MASK)
1513 command_print(cmd, "\t\tMEMTYPE system memory present on bus");
1515 command_print(cmd, "\t\tMEMTYPE system memory not present: dedicated debug bus");
1517 rom_num_entries = 960;
1518 } else if (class == ARM_CS_CLASS_0X9_CS_COMPONENT) {
1520 retval = mem_ap_read_atomic_u32(ap, base_addr + ARM_CS_C9_DEVTYPE, &devtype);
1521 if (retval != ERROR_OK)
1524 retval = dap_devtype_display(cmd, devtype);
1525 if (retval != ERROR_OK)
1528 /* REVISIT also show ARM_CS_C9_DEVID */
1531 retval = mem_ap_read_atomic_u32(ap, base_addr + ARM_CS_C9_DEVARCH, &devarch);
1532 if (retval != ERROR_OK)
1535 if ((devarch & ARM_CS_C9_DEVARCH_PRESENT) == 0)
1538 unsigned int architect_id = (devarch & ARM_CS_C9_DEVARCH_ARCHITECT_MASK) >> ARM_CS_C9_DEVARCH_ARCHITECT_SHIFT;
1539 unsigned int revision = (devarch & ARM_CS_C9_DEVARCH_REVISION_MASK) >> ARM_CS_C9_DEVARCH_REVISION_SHIFT;
1540 command_print(cmd, "\t\tDev Arch is 0x%08" PRIx32 ", %s \"%s\" rev.%u", devarch,
1541 jep106_manufacturer(architect_id), class0x9_devarch_description(devarch),
1543 /* quit if not ROM table */
1544 if ((devarch & DEVARCH_ID_MASK) != DEVARCH_ROM_C_0X9)
1547 rom_num_entries = 512;
1549 /* Class other than 0x1 and 0x9 */
1553 /* Read ROM table entries from base address until we get 0x00000000 or reach the reserved area */
1554 for (unsigned int entry_offset = 0; entry_offset < 4 * rom_num_entries; entry_offset += 4) {
1556 retval = mem_ap_read_atomic_u32(ap, base_addr + entry_offset, &romentry);
1557 if (retval != ERROR_OK)
1559 command_print(cmd, "\t%sROMTABLE[0x%x] = 0x%08" PRIx32 "",
1560 tabs, entry_offset, romentry);
1561 if (romentry & ARM_CS_ROMENTRY_PRESENT) {
1562 /* Recurse. "romentry" is signed */
1563 retval = dap_rom_display(cmd, ap, base_addr + (int32_t)(romentry & ARM_CS_ROMENTRY_OFFSET_MASK),
1565 if (retval != ERROR_OK)
1567 } else if (romentry != 0) {
1568 command_print(cmd, "\t\tComponent not present");
1570 command_print(cmd, "\t%s\tEnd of ROM table", tabs);
1578 int dap_info_command(struct command_invocation *cmd,
1579 struct adiv5_ap *ap)
1583 target_addr_t dbgbase;
1584 target_addr_t dbgaddr;
1586 /* Now we read ROM table ID registers, ref. ARM IHI 0029B sec */
1587 retval = dap_get_debugbase(ap, &dbgbase, &apid);
1588 if (retval != ERROR_OK)
1591 command_print(cmd, "AP ID register 0x%8.8" PRIx32, apid);
1593 command_print(cmd, "No AP found at this ap 0x%x", ap->ap_num);
1597 command_print(cmd, "\tType is %s", ap_type_to_description(apid & AP_TYPE_MASK));
1599 /* NOTE: a MEM-AP may have a single CoreSight component that's
1600 * not a ROM table ... or have no such components at all.
1602 const unsigned int class = (apid & AP_REG_IDR_CLASS_MASK) >> AP_REG_IDR_CLASS_SHIFT;
1604 if (class == AP_REG_IDR_CLASS_MEM_AP) {
1605 if (is_64bit_ap(ap))
1606 dbgaddr = 0xFFFFFFFFFFFFFFFFull;
1608 dbgaddr = 0xFFFFFFFFul;
1610 command_print(cmd, "MEM-AP BASE " TARGET_ADDR_FMT, dbgbase);
1612 if (dbgbase == dbgaddr || (dbgbase & 0x3) == 0x2) {
1613 command_print(cmd, "\tNo ROM table present");
1616 command_print(cmd, "\tValid ROM table present");
1618 command_print(cmd, "\tROM table in legacy format");
1620 dap_rom_display(cmd, ap, dbgbase & 0xFFFFFFFFFFFFF000ull, 0);
1627 enum adiv5_cfg_param {
1631 CFG_CTIBASE, /* DEPRECATED */
1634 static const struct jim_nvp nvp_config_opts[] = {
1635 { .name = "-dap", .value = CFG_DAP },
1636 { .name = "-ap-num", .value = CFG_AP_NUM },
1637 { .name = "-baseaddr", .value = CFG_BASEADDR },
1638 { .name = "-ctibase", .value = CFG_CTIBASE }, /* DEPRECATED */
1639 { .name = NULL, .value = -1 }
1642 static int adiv5_jim_spot_configure(struct jim_getopt_info *goi,
1643 struct adiv5_dap **dap_p, int *ap_num_p, uint32_t *base_p)
1648 Jim_SetEmptyResult(goi->interp);
1651 int e = jim_nvp_name2value_obj(goi->interp, nvp_config_opts,
1654 return JIM_CONTINUE;
1656 /* base_p can be NULL, then '-baseaddr' option is treated as unknown */
1657 if (!base_p && (n->value == CFG_BASEADDR || n->value == CFG_CTIBASE))
1658 return JIM_CONTINUE;
1660 e = jim_getopt_obj(goi, NULL);
1666 if (goi->isconfigure) {
1668 struct adiv5_dap *dap;
1669 e = jim_getopt_obj(goi, &o_t);
1672 dap = dap_instance_by_jim_obj(goi->interp, o_t);
1674 Jim_SetResultString(goi->interp, "DAP name invalid!", -1);
1677 if (*dap_p && *dap_p != dap) {
1678 Jim_SetResultString(goi->interp,
1679 "DAP assignment cannot be changed!", -1);
1687 Jim_SetResultString(goi->interp, "DAP not configured", -1);
1690 Jim_SetResultString(goi->interp, adiv5_dap_name(*dap_p), -1);
1695 if (goi->isconfigure) {
1697 e = jim_getopt_wide(goi, &ap_num);
1700 if (ap_num < 0 || ap_num > DP_APSEL_MAX) {
1701 Jim_SetResultString(goi->interp, "Invalid AP number!", -1);
1708 if (*ap_num_p == DP_APSEL_INVALID) {
1709 Jim_SetResultString(goi->interp, "AP number not configured", -1);
1712 Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, *ap_num_p));
1717 LOG_WARNING("DEPRECATED! use \'-baseaddr' not \'-ctibase\'");
1720 if (goi->isconfigure) {
1722 e = jim_getopt_wide(goi, &base);
1725 *base_p = (uint32_t)base;
1729 Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, *base_p));
1737 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "NO PARAMS");
1741 int adiv5_jim_configure(struct target *target, struct jim_getopt_info *goi)
1743 struct adiv5_private_config *pc;
1746 pc = (struct adiv5_private_config *)target->private_config;
1748 pc = calloc(1, sizeof(struct adiv5_private_config));
1749 pc->ap_num = DP_APSEL_INVALID;
1750 target->private_config = pc;
1753 target->has_dap = true;
1755 e = adiv5_jim_spot_configure(goi, &pc->dap, &pc->ap_num, NULL);
1759 if (pc->dap && !target->dap_configured) {
1760 if (target->tap_configured) {
1762 Jim_SetResultString(goi->interp,
1763 "-chain-position and -dap configparams are mutually exclusive!", -1);
1766 target->tap = pc->dap->tap;
1767 target->dap_configured = true;
1773 int adiv5_verify_config(struct adiv5_private_config *pc)
1784 int adiv5_jim_mem_ap_spot_configure(struct adiv5_mem_ap_spot *cfg,
1785 struct jim_getopt_info *goi)
1787 return adiv5_jim_spot_configure(goi, &cfg->dap, &cfg->ap_num, &cfg->base);
1790 int adiv5_mem_ap_spot_init(struct adiv5_mem_ap_spot *p)
1793 p->ap_num = DP_APSEL_INVALID;
1798 COMMAND_HANDLER(handle_dap_info_command)
1800 struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
1808 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
1809 if (apsel > DP_APSEL_MAX) {
1810 command_print(CMD, "Invalid AP number");
1811 return ERROR_COMMAND_ARGUMENT_INVALID;
1815 return ERROR_COMMAND_SYNTAX_ERROR;
1818 return dap_info_command(CMD, &dap->ap[apsel]);
1821 COMMAND_HANDLER(dap_baseaddr_command)
1823 struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
1824 uint32_t apsel, baseaddr_lower, baseaddr_upper;
1825 struct adiv5_ap *ap;
1826 target_addr_t baseaddr;
1836 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
1837 /* AP address is in bits 31:24 of DP_SELECT */
1838 if (apsel > DP_APSEL_MAX) {
1839 command_print(CMD, "Invalid AP number");
1840 return ERROR_COMMAND_ARGUMENT_INVALID;
1844 return ERROR_COMMAND_SYNTAX_ERROR;
1847 /* NOTE: assumes we're talking to a MEM-AP, which
1848 * has a base address. There are other kinds of AP,
1849 * though they're not common for now. This should
1850 * use the ID register to verify it's a MEM-AP.
1853 ap = dap_ap(dap, apsel);
1854 retval = dap_queue_ap_read(ap, MEM_AP_REG_BASE, &baseaddr_lower);
1856 if (retval == ERROR_OK && ap->cfg_reg == MEM_AP_REG_CFG_INVALID)
1857 retval = dap_queue_ap_read(ap, MEM_AP_REG_CFG, &ap->cfg_reg);
1859 if (retval == ERROR_OK && (ap->cfg_reg == MEM_AP_REG_CFG_INVALID || is_64bit_ap(ap))) {
1860 /* MEM_AP_REG_BASE64 is defined as 'RES0'; can be read and then ignored on 32 bits AP */
1861 retval = dap_queue_ap_read(ap, MEM_AP_REG_BASE64, &baseaddr_upper);
1864 if (retval == ERROR_OK)
1865 retval = dap_run(dap);
1866 if (retval != ERROR_OK)
1869 if (is_64bit_ap(ap)) {
1870 baseaddr = (((target_addr_t)baseaddr_upper) << 32) | baseaddr_lower;
1871 command_print(CMD, "0x%016" PRIx64, baseaddr);
1873 command_print(CMD, "0x%08" PRIx32, baseaddr_lower);
1878 COMMAND_HANDLER(dap_memaccess_command)
1880 struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
1881 uint32_t memaccess_tck;
1885 memaccess_tck = dap->ap[dap->apsel].memaccess_tck;
1888 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], memaccess_tck);
1891 return ERROR_COMMAND_SYNTAX_ERROR;
1893 dap->ap[dap->apsel].memaccess_tck = memaccess_tck;
1895 command_print(CMD, "memory bus access delay set to %" PRIu32 " tck",
1896 dap->ap[dap->apsel].memaccess_tck);
1901 COMMAND_HANDLER(dap_apsel_command)
1903 struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
1908 command_print(CMD, "%" PRIu32, dap->apsel);
1911 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
1912 /* AP address is in bits 31:24 of DP_SELECT */
1913 if (apsel > DP_APSEL_MAX) {
1914 command_print(CMD, "Invalid AP number");
1915 return ERROR_COMMAND_ARGUMENT_INVALID;
1919 return ERROR_COMMAND_SYNTAX_ERROR;
1926 COMMAND_HANDLER(dap_apcsw_command)
1928 struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
1929 uint32_t apcsw = dap->ap[dap->apsel].csw_default;
1930 uint32_t csw_val, csw_mask;
1934 command_print(CMD, "ap %" PRIu32 " selected, csw 0x%8.8" PRIx32,
1938 if (strcmp(CMD_ARGV[0], "default") == 0)
1939 csw_val = CSW_AHB_DEFAULT;
1941 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], csw_val);
1943 if (csw_val & (CSW_SIZE_MASK | CSW_ADDRINC_MASK)) {
1944 LOG_ERROR("CSW value cannot include 'Size' and 'AddrInc' bit-fields");
1945 return ERROR_COMMAND_ARGUMENT_INVALID;
1950 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], csw_val);
1951 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], csw_mask);
1952 if (csw_mask & (CSW_SIZE_MASK | CSW_ADDRINC_MASK)) {
1953 LOG_ERROR("CSW mask cannot include 'Size' and 'AddrInc' bit-fields");
1954 return ERROR_COMMAND_ARGUMENT_INVALID;
1956 apcsw = (apcsw & ~csw_mask) | (csw_val & csw_mask);
1959 return ERROR_COMMAND_SYNTAX_ERROR;
1961 dap->ap[dap->apsel].csw_default = apcsw;
1968 COMMAND_HANDLER(dap_apid_command)
1970 struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
1971 uint32_t apsel, apid;
1979 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
1980 /* AP address is in bits 31:24 of DP_SELECT */
1981 if (apsel > DP_APSEL_MAX) {
1982 command_print(CMD, "Invalid AP number");
1983 return ERROR_COMMAND_ARGUMENT_INVALID;
1987 return ERROR_COMMAND_SYNTAX_ERROR;
1990 retval = dap_queue_ap_read(dap_ap(dap, apsel), AP_REG_IDR, &apid);
1991 if (retval != ERROR_OK)
1993 retval = dap_run(dap);
1994 if (retval != ERROR_OK)
1997 command_print(CMD, "0x%8.8" PRIx32, apid);
2002 COMMAND_HANDLER(dap_apreg_command)
2004 struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
2005 uint32_t apsel, reg, value;
2006 struct adiv5_ap *ap;
2009 if (CMD_ARGC < 2 || CMD_ARGC > 3)
2010 return ERROR_COMMAND_SYNTAX_ERROR;
2012 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
2013 /* AP address is in bits 31:24 of DP_SELECT */
2014 if (apsel > DP_APSEL_MAX) {
2015 command_print(CMD, "Invalid AP number");
2016 return ERROR_COMMAND_ARGUMENT_INVALID;
2019 ap = dap_ap(dap, apsel);
2021 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], reg);
2022 if (reg >= 256 || (reg & 3)) {
2023 command_print(CMD, "Invalid reg value (should be less than 256 and 4 bytes aligned)");
2024 return ERROR_COMMAND_ARGUMENT_INVALID;
2027 if (CMD_ARGC == 3) {
2028 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], value);
2030 case MEM_AP_REG_CSW:
2031 ap->csw_value = 0; /* invalid, in case write fails */
2032 retval = dap_queue_ap_write(ap, reg, value);
2033 if (retval == ERROR_OK)
2034 ap->csw_value = value;
2036 case MEM_AP_REG_TAR:
2037 retval = dap_queue_ap_write(ap, reg, value);
2038 if (retval == ERROR_OK)
2039 ap->tar_value = (ap->tar_value & ~0xFFFFFFFFull) | value;
2041 /* To track independent writes to TAR and TAR64, two tar_valid flags */
2042 /* should be used. To keep it simple, tar_valid is only invalidated on a */
2043 /* write fail. This approach causes a later re-write of the TAR and TAR64 */
2044 /* if tar_valid is false. */
2045 ap->tar_valid = false;
2048 case MEM_AP_REG_TAR64:
2049 retval = dap_queue_ap_write(ap, reg, value);
2050 if (retval == ERROR_OK)
2051 ap->tar_value = (ap->tar_value & 0xFFFFFFFFull) | (((target_addr_t)value) << 32);
2053 /* See above comment for the MEM_AP_REG_TAR failed write case */
2054 ap->tar_valid = false;
2058 retval = dap_queue_ap_write(ap, reg, value);
2062 retval = dap_queue_ap_read(ap, reg, &value);
2064 if (retval == ERROR_OK)
2065 retval = dap_run(dap);
2067 if (retval != ERROR_OK)
2071 command_print(CMD, "0x%08" PRIx32, value);
2076 COMMAND_HANDLER(dap_dpreg_command)
2078 struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
2079 uint32_t reg, value;
2082 if (CMD_ARGC < 1 || CMD_ARGC > 2)
2083 return ERROR_COMMAND_SYNTAX_ERROR;
2085 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], reg);
2086 if (reg >= 256 || (reg & 3)) {
2087 command_print(CMD, "Invalid reg value (should be less than 256 and 4 bytes aligned)");
2088 return ERROR_COMMAND_ARGUMENT_INVALID;
2091 if (CMD_ARGC == 2) {
2092 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
2093 retval = dap_queue_dp_write(dap, reg, value);
2095 retval = dap_queue_dp_read(dap, reg, &value);
2097 if (retval == ERROR_OK)
2098 retval = dap_run(dap);
2100 if (retval != ERROR_OK)
2104 command_print(CMD, "0x%08" PRIx32, value);
2109 COMMAND_HANDLER(dap_ti_be_32_quirks_command)
2111 struct adiv5_dap *dap = adiv5_get_dap(CMD_DATA);
2112 return CALL_COMMAND_HANDLER(handle_command_parse_bool, &dap->ti_be_32_quirks,
2113 "TI BE-32 quirks mode");
2116 const struct command_registration dap_instance_commands[] = {
2119 .handler = handle_dap_info_command,
2120 .mode = COMMAND_EXEC,
2121 .help = "display ROM table for MEM-AP "
2122 "(default currently selected AP)",
2123 .usage = "[ap_num]",
2127 .handler = dap_apsel_command,
2128 .mode = COMMAND_ANY,
2129 .help = "Set the currently selected AP (default 0) "
2130 "and display the result",
2131 .usage = "[ap_num]",
2135 .handler = dap_apcsw_command,
2136 .mode = COMMAND_ANY,
2137 .help = "Set CSW default bits",
2138 .usage = "[value [mask]]",
2143 .handler = dap_apid_command,
2144 .mode = COMMAND_EXEC,
2145 .help = "return ID register from AP "
2146 "(default currently selected AP)",
2147 .usage = "[ap_num]",
2151 .handler = dap_apreg_command,
2152 .mode = COMMAND_EXEC,
2153 .help = "read/write a register from AP "
2154 "(reg is byte address of a word register, like 0 4 8...)",
2155 .usage = "ap_num reg [value]",
2159 .handler = dap_dpreg_command,
2160 .mode = COMMAND_EXEC,
2161 .help = "read/write a register from DP "
2162 "(reg is byte address (bank << 4 | reg) of a word register, like 0 4 8...)",
2163 .usage = "reg [value]",
2167 .handler = dap_baseaddr_command,
2168 .mode = COMMAND_EXEC,
2169 .help = "return debug base address from MEM-AP "
2170 "(default currently selected AP)",
2171 .usage = "[ap_num]",
2174 .name = "memaccess",
2175 .handler = dap_memaccess_command,
2176 .mode = COMMAND_EXEC,
2177 .help = "set/get number of extra tck for MEM-AP memory "
2178 "bus access [0-255]",
2179 .usage = "[cycles]",
2182 .name = "ti_be_32_quirks",
2183 .handler = dap_ti_be_32_quirks_command,
2184 .mode = COMMAND_CONFIG,
2185 .help = "set/get quirks mode for TI TMS450/TMS570 processors",
2186 .usage = "[enable]",
2188 COMMAND_REGISTRATION_DONE