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Revert "board: don't hardcode interface for ti_beaglebone"
[openocd.git] / src / jtag / tcl.c
blobc916fb1ca186126b99f3c2566eace86f59664081
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007-2010 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * Copyright (C) 2009 SoftPLC Corporation *
9 * http://softplc.com *
10 * dick@softplc.com *
11 * *
12 * Copyright (C) 2009 Zachary T Welch *
13 * zw@superlucidity.net *
14 * *
15 * This program is free software; you can redistribute it and/or modify *
16 * it under the terms of the GNU General Public License as published by *
17 * the Free Software Foundation; either version 2 of the License, or *
18 * (at your option) any later version. *
19 * *
20 * This program is distributed in the hope that it will be useful, *
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
23 * GNU General Public License for more details. *
24 * *
25 * You should have received a copy of the GNU General Public License *
26 * along with this program; if not, write to the *
27 * Free Software Foundation, Inc., *
28 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
29 ***************************************************************************/
30
31 #ifdef HAVE_CONFIG_H
32 #include "config.h"
33 #endif
34
35 #include "jtag.h"
36 #include "swd.h"
37 #include "minidriver.h"
38 #include "interface.h"
39 #include "interfaces.h"
40 #include "tcl.h"
41
42 #ifdef HAVE_STRINGS_H
43 #include <strings.h>
44 #endif
45
46 #include <helper/time_support.h>
47
48 /**
49 * @file
50 * Holds support for accessing JTAG-specific mechanisms from TCl scripts.
51 */
52
53 static const Jim_Nvp nvp_jtag_tap_event[] = {
54 { .value = JTAG_TRST_ASSERTED, .name = "post-reset" },
55 { .value = JTAG_TAP_EVENT_SETUP, .name = "setup" },
56 { .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" },
57 { .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" },
58
59 { .name = NULL, .value = -1 }
60 };
61
62 struct jtag_tap *jtag_tap_by_jim_obj(Jim_Interp *interp, Jim_Obj *o)
63 {
64 const char *cp = Jim_GetString(o, NULL);
65 struct jtag_tap *t = cp ? jtag_tap_by_string(cp) : NULL;
66 if (NULL == cp)
67 cp = "(unknown)";
68 if (NULL == t)
69 Jim_SetResultFormatted(interp, "Tap '%s' could not be found", cp);
70 return t;
71 }
72
73 static bool scan_is_safe(tap_state_t state)
74 {
75 switch (state) {
76 case TAP_RESET:
77 case TAP_IDLE:
78 case TAP_DRPAUSE:
79 case TAP_IRPAUSE:
80 return true;
81 default:
82 return false;
83 }
84 }
85
86 static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
87 {
88 int retval;
89 struct scan_field *fields;
90 int num_fields;
91 int field_count = 0;
92 int i, e;
93 struct jtag_tap *tap;
94 tap_state_t endstate;
95
96 /* args[1] = device
97 * args[2] = num_bits
98 * args[3] = hex string
99 * ... repeat num bits and hex string ...
100 *
101 * .. optionally:
102 * args[N-2] = "-endstate"
103 * args[N-1] = statename
104 */
105 if ((argc < 4) || ((argc % 2) != 0)) {
106 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
107 return JIM_ERR;
108 }
109
110 endstate = TAP_IDLE;
111
112 script_debug(interp, "drscan", argc, args);
113
114 /* validate arguments as numbers */
115 e = JIM_OK;
116 for (i = 2; i < argc; i += 2) {
117 long bits;
118 const char *cp;
119
120 e = Jim_GetLong(interp, args[i], &bits);
121 /* If valid - try next arg */
122 if (e == JIM_OK)
123 continue;
124
125 /* Not valid.. are we at the end? */
126 if (((i + 2) != argc)) {
127 /* nope, then error */
128 return e;
129 }
130
131 /* it could be: "-endstate FOO"
132 * e.g. DRPAUSE so we can issue more instructions
133 * before entering RUN/IDLE and executing them.
134 */
135
136 /* get arg as a string. */
137 cp = Jim_GetString(args[i], NULL);
138 /* is it the magic? */
139 if (0 == strcmp("-endstate", cp)) {
140 /* is the statename valid? */
141 cp = Jim_GetString(args[i + 1], NULL);
142
143 /* see if it is a valid state name */
144 endstate = tap_state_by_name(cp);
145 if (endstate < 0) {
146 /* update the error message */
147 Jim_SetResultFormatted(interp, "endstate: %s invalid", cp);
148 } else {
149 if (!scan_is_safe(endstate))
150 LOG_WARNING("drscan with unsafe "
151 "endstate \"%s\"", cp);
152
153 /* valid - so clear the error */
154 e = JIM_OK;
155 /* and remove the last 2 args */
156 argc -= 2;
157 }
158 }
159
160 /* Still an error? */
161 if (e != JIM_OK)
162 return e; /* too bad */
163 } /* validate args */
164
165 assert(e == JIM_OK);
166
167 tap = jtag_tap_by_jim_obj(interp, args[1]);
168 if (tap == NULL)
169 return JIM_ERR;
170
171 num_fields = (argc-2)/2;
172 if (num_fields <= 0) {
173 Jim_SetResultString(interp, "drscan: no scan fields supplied", -1);
174 return JIM_ERR;
175 }
176 fields = malloc(sizeof(struct scan_field) * num_fields);
177 for (i = 2; i < argc; i += 2) {
178 long bits;
179 int len;
180 const char *str;
181
182 Jim_GetLong(interp, args[i], &bits);
183 str = Jim_GetString(args[i + 1], &len);
184
185 fields[field_count].num_bits = bits;
186 void *t = malloc(DIV_ROUND_UP(bits, 8));
187 fields[field_count].out_value = t;
188 str_to_buf(str, len, t, bits, 0);
189 fields[field_count].in_value = t;
190 field_count++;
191 }
192
193 jtag_add_dr_scan(tap, num_fields, fields, endstate);
194
195 retval = jtag_execute_queue();
196 if (retval != ERROR_OK) {
197 Jim_SetResultString(interp, "drscan: jtag execute failed", -1);
198 return JIM_ERR;
199 }
200
201 field_count = 0;
202 Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
203 for (i = 2; i < argc; i += 2) {
204 long bits;
205 char *str;
206
207 Jim_GetLong(interp, args[i], &bits);
208 str = buf_to_str(fields[field_count].in_value, bits, 16);
209 free(fields[field_count].in_value);
210
211 Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
212 free(str);
213 field_count++;
214 }
215
216 Jim_SetResult(interp, list);
217
218 free(fields);
219
220 return JIM_OK;
221 }
222
223
224 static int Jim_Command_pathmove(Jim_Interp *interp, int argc, Jim_Obj *const *args)
225 {
226 tap_state_t states[8];
227
228 if ((argc < 2) || ((size_t)argc > (ARRAY_SIZE(states) + 1))) {
229 Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
230 return JIM_ERR;
231 }
232
233 script_debug(interp, "pathmove", argc, args);
234
235 int i;
236 for (i = 0; i < argc-1; i++) {
237 const char *cp;
238 cp = Jim_GetString(args[i + 1], NULL);
239 states[i] = tap_state_by_name(cp);
240 if (states[i] < 0) {
241 /* update the error message */
242 Jim_SetResultFormatted(interp, "endstate: %s invalid", cp);
243 return JIM_ERR;
244 }
245 }
246
247 if ((jtag_add_statemove(states[0]) != ERROR_OK) || (jtag_execute_queue() != ERROR_OK)) {
248 Jim_SetResultString(interp, "pathmove: jtag execute failed", -1);
249 return JIM_ERR;
250 }
251
252 jtag_add_pathmove(argc - 2, states + 1);
253
254 if (jtag_execute_queue() != ERROR_OK) {
255 Jim_SetResultString(interp, "pathmove: failed", -1);
256 return JIM_ERR;
257 }
258
259 return JIM_OK;
260 }
261
262
263 static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
264 {
265 script_debug(interp, "flush_count", argc, args);
266
267 Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
268
269 return JIM_OK;
270 }
271
272 /* REVISIT Just what about these should "move" ... ?
273 * These registrations, into the main JTAG table?
274 *
275 * There's a minor compatibility issue, these all show up twice;
276 * that's not desirable:
277 * - jtag drscan ... NOT DOCUMENTED!
278 * - drscan ...
279 *
280 * The "irscan" command (for example) doesn't show twice.
281 */
282 static const struct command_registration jtag_command_handlers_to_move[] = {
283 {
284 .name = "drscan",
285 .mode = COMMAND_EXEC,
286 .jim_handler = Jim_Command_drscan,
287 .help = "Execute Data Register (DR) scan for one TAP. "
288 "Other TAPs must be in BYPASS mode.",
289 .usage = "tap_name [num_bits value]* ['-endstate' state_name]",
290 },
291 {
292 .name = "flush_count",
293 .mode = COMMAND_EXEC,
294 .jim_handler = Jim_Command_flush_count,
295 .help = "Returns the number of times the JTAG queue "
296 "has been flushed.",
297 },
298 {
299 .name = "pathmove",
300 .mode = COMMAND_EXEC,
301 .jim_handler = Jim_Command_pathmove,
302 .usage = "start_state state1 [state2 [state3 ...]]",
303 .help = "Move JTAG state machine from current state "
304 "(start_state) to state1, then state2, state3, etc.",
305 },
306 COMMAND_REGISTRATION_DONE
307 };
308
309
310 enum jtag_tap_cfg_param {
311 JCFG_EVENT
312 };
313
314 static Jim_Nvp nvp_config_opts[] = {
315 { .name = "-event", .value = JCFG_EVENT },
316
317 { .name = NULL, .value = -1 }
318 };
319
320 static int jtag_tap_configure_event(Jim_GetOptInfo *goi, struct jtag_tap *tap)
321 {
322 if (goi->argc == 0) {
323 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name> ...");
324 return JIM_ERR;
325 }
326
327 Jim_Nvp *n;
328 int e = Jim_GetOpt_Nvp(goi, nvp_jtag_tap_event, &n);
329 if (e != JIM_OK) {
330 Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
331 return e;
332 }
333
334 if (goi->isconfigure) {
335 if (goi->argc != 1) {
336 Jim_WrongNumArgs(goi->interp,
337 goi->argc,
338 goi->argv,
339 "-event <event-name> <event-body>");
340 return JIM_ERR;
341 }
342 } else {
343 if (goi->argc != 0) {
344 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name>");
345 return JIM_ERR;
346 }
347 }
348
349 struct jtag_tap_event_action *jteap = tap->event_action;
350 /* replace existing event body */
351 bool found = false;
352 while (jteap) {
353 if (jteap->event == (enum jtag_event)n->value) {
354 found = true;
355 break;
356 }
357 jteap = jteap->next;
358 }
359
360 Jim_SetEmptyResult(goi->interp);
361
362 if (goi->isconfigure) {
363 if (!found)
364 jteap = calloc(1, sizeof(*jteap));
365 else if (NULL != jteap->body)
366 Jim_DecrRefCount(goi->interp, jteap->body);
367
368 jteap->interp = goi->interp;
369 jteap->event = n->value;
370
371 Jim_Obj *o;
372 Jim_GetOpt_Obj(goi, &o);
373 jteap->body = Jim_DuplicateObj(goi->interp, o);
374 Jim_IncrRefCount(jteap->body);
375
376 if (!found) {
377 /* add to head of event list */
378 jteap->next = tap->event_action;
379 tap->event_action = jteap;
380 }
381 } else if (found) {
382 jteap->interp = goi->interp;
383 Jim_SetResult(goi->interp,
384 Jim_DuplicateObj(goi->interp, jteap->body));
385 }
386 return JIM_OK;
387 }
388
389 static int jtag_tap_configure_cmd(Jim_GetOptInfo *goi, struct jtag_tap *tap)
390 {
391 /* parse config or cget options */
392 while (goi->argc > 0) {
393 Jim_SetEmptyResult(goi->interp);
394
395 Jim_Nvp *n;
396 int e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
397 if (e != JIM_OK) {
398 Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
399 return e;
400 }
401
402 switch (n->value) {
403 case JCFG_EVENT:
404 e = jtag_tap_configure_event(goi, tap);
405 if (e != JIM_OK)
406 return e;
407 break;
408 default:
409 Jim_SetResultFormatted(goi->interp, "unknown event: %s", n->name);
410 return JIM_ERR;
411 }
412 }
413
414 return JIM_OK;
415 }
416
417 static int is_bad_irval(int ir_length, jim_wide w)
418 {
419 jim_wide v = 1;
420
421 v <<= ir_length;
422 v -= 1;
423 v = ~v;
424 return (w & v) != 0;
425 }
426
427 static int jim_newtap_expected_id(Jim_Nvp *n, Jim_GetOptInfo *goi,
428 struct jtag_tap *pTap)
429 {
430 jim_wide w;
431 int e = Jim_GetOpt_Wide(goi, &w);
432 if (e != JIM_OK) {
433 Jim_SetResultFormatted(goi->interp, "option: %s bad parameter", n->name);
434 return e;
435 }
436
437 uint32_t *p = realloc(pTap->expected_ids,
438 (pTap->expected_ids_cnt + 1) * sizeof(uint32_t));
439 if (!p) {
440 Jim_SetResultFormatted(goi->interp, "no memory");
441 return JIM_ERR;
442 }
443
444 pTap->expected_ids = p;
445 pTap->expected_ids[pTap->expected_ids_cnt++] = w;
446
447 return JIM_OK;
448 }
449
450 #define NTAP_OPT_IRLEN 0
451 #define NTAP_OPT_IRMASK 1
452 #define NTAP_OPT_IRCAPTURE 2
453 #define NTAP_OPT_ENABLED 3
454 #define NTAP_OPT_DISABLED 4
455 #define NTAP_OPT_EXPECTED_ID 5
456 #define NTAP_OPT_VERSION 6
457
458 static int jim_newtap_ir_param(Jim_Nvp *n, Jim_GetOptInfo *goi,
459 struct jtag_tap *pTap)
460 {
461 jim_wide w;
462 int e = Jim_GetOpt_Wide(goi, &w);
463 if (e != JIM_OK) {
464 Jim_SetResultFormatted(goi->interp,
465 "option: %s bad parameter", n->name);
466 return e;
467 }
468 switch (n->value) {
469 case NTAP_OPT_IRLEN:
470 if (w > (jim_wide) (8 * sizeof(pTap->ir_capture_value))) {
471 LOG_WARNING("%s: huge IR length %d",
472 pTap->dotted_name, (int) w);
473 }
474 pTap->ir_length = w;
475 break;
476 case NTAP_OPT_IRMASK:
477 if (is_bad_irval(pTap->ir_length, w)) {
478 LOG_ERROR("%s: IR mask %x too big",
479 pTap->dotted_name,
480 (int) w);
481 return JIM_ERR;
482 }
483 if ((w & 3) != 3)
484 LOG_WARNING("%s: nonstandard IR mask", pTap->dotted_name);
485 pTap->ir_capture_mask = w;
486 break;
487 case NTAP_OPT_IRCAPTURE:
488 if (is_bad_irval(pTap->ir_length, w)) {
489 LOG_ERROR("%s: IR capture %x too big",
490 pTap->dotted_name, (int) w);
491 return JIM_ERR;
492 }
493 if ((w & 3) != 1)
494 LOG_WARNING("%s: nonstandard IR value",
495 pTap->dotted_name);
496 pTap->ir_capture_value = w;
497 break;
498 default:
499 return JIM_ERR;
500 }
501 return JIM_OK;
502 }
503
504 static int jim_newtap_cmd(Jim_GetOptInfo *goi)
505 {
506 struct jtag_tap *pTap;
507 int x;
508 int e;
509 Jim_Nvp *n;
510 char *cp;
511 const Jim_Nvp opts[] = {
512 { .name = "-irlen", .value = NTAP_OPT_IRLEN },
513 { .name = "-irmask", .value = NTAP_OPT_IRMASK },
514 { .name = "-ircapture", .value = NTAP_OPT_IRCAPTURE },
515 { .name = "-enable", .value = NTAP_OPT_ENABLED },
516 { .name = "-disable", .value = NTAP_OPT_DISABLED },
517 { .name = "-expected-id", .value = NTAP_OPT_EXPECTED_ID },
518 { .name = "-ignore-version", .value = NTAP_OPT_VERSION },
519 { .name = NULL, .value = -1 },
520 };
521
522 pTap = calloc(1, sizeof(struct jtag_tap));
523 if (!pTap) {
524 Jim_SetResultFormatted(goi->interp, "no memory");
525 return JIM_ERR;
526 }
527
528 /*
529 * we expect CHIP + TAP + OPTIONS
530 * */
531 if (goi->argc < 3) {
532 Jim_SetResultFormatted(goi->interp, "Missing CHIP TAP OPTIONS ....");
533 free(pTap);
534 return JIM_ERR;
535 }
536 Jim_GetOpt_String(goi, &cp, NULL);
537 pTap->chip = strdup(cp);
538
539 Jim_GetOpt_String(goi, &cp, NULL);
540 pTap->tapname = strdup(cp);
541
542 /* name + dot + name + null */
543 x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
544 cp = malloc(x);
545 sprintf(cp, "%s.%s", pTap->chip, pTap->tapname);
546 pTap->dotted_name = cp;
547
548 LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
549 pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
550
551 if (!transport_is_jtag()) {
552 /* SWD doesn't require any JTAG tap parameters */
553 pTap->enabled = true;
554 jtag_tap_init(pTap);
555 return JIM_OK;
556 }
557
558 /* IEEE specifies that the two LSBs of an IR scan are 01, so make
559 * that the default. The "-ircapture" and "-irmask" options are only
560 * needed to cope with nonstandard TAPs, or to specify more bits.
561 */
562 pTap->ir_capture_mask = 0x03;
563 pTap->ir_capture_value = 0x01;
564
565 while (goi->argc) {
566 e = Jim_GetOpt_Nvp(goi, opts, &n);
567 if (e != JIM_OK) {
568 Jim_GetOpt_NvpUnknown(goi, opts, 0);
569 free(cp);
570 free(pTap);
571 return e;
572 }
573 LOG_DEBUG("Processing option: %s", n->name);
574 switch (n->value) {
575 case NTAP_OPT_ENABLED:
576 pTap->disabled_after_reset = false;
577 break;
578 case NTAP_OPT_DISABLED:
579 pTap->disabled_after_reset = true;
580 break;
581 case NTAP_OPT_EXPECTED_ID:
582 e = jim_newtap_expected_id(n, goi, pTap);
583 if (JIM_OK != e) {
584 free(cp);
585 free(pTap);
586 return e;
587 }
588 break;
589 case NTAP_OPT_IRLEN:
590 case NTAP_OPT_IRMASK:
591 case NTAP_OPT_IRCAPTURE:
592 e = jim_newtap_ir_param(n, goi, pTap);
593 if (JIM_OK != e) {
594 free(cp);
595 free(pTap);
596 return e;
597 }
598 break;
599 case NTAP_OPT_VERSION:
600 pTap->ignore_version = true;
601 break;
602 } /* switch (n->value) */
603 } /* while (goi->argc) */
604
605 /* default is enabled-after-reset */
606 pTap->enabled = !pTap->disabled_after_reset;
607
608 /* Did all the required option bits get cleared? */
609 if (pTap->ir_length != 0) {
610 jtag_tap_init(pTap);
611 return JIM_OK;
612 }
613
614 Jim_SetResultFormatted(goi->interp,
615 "newtap: %s missing IR length",
616 pTap->dotted_name);
617 jtag_tap_free(pTap);
618 return JIM_ERR;
619 }
620
621 static void jtag_tap_handle_event(struct jtag_tap *tap, enum jtag_event e)
622 {
623 struct jtag_tap_event_action *jteap;
624
625 for (jteap = tap->event_action; jteap != NULL; jteap = jteap->next) {
626 if (jteap->event != e)
627 continue;
628
629 Jim_Nvp *nvp = Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e);
630 LOG_DEBUG("JTAG tap: %s event: %d (%s)\n\taction: %s",
631 tap->dotted_name, e, nvp->name,
632 Jim_GetString(jteap->body, NULL));
633
634 if (Jim_EvalObj(jteap->interp, jteap->body) != JIM_OK) {
635 Jim_MakeErrorMessage(jteap->interp);
636 LOG_USER("%s", Jim_GetString(Jim_GetResult(jteap->interp), NULL));
637 continue;
638 }
639
640 switch (e) {
641 case JTAG_TAP_EVENT_ENABLE:
642 case JTAG_TAP_EVENT_DISABLE:
643 /* NOTE: we currently assume the handlers
644 * can't fail. Right here is where we should
645 * really be verifying the scan chains ...
646 */
647 tap->enabled = (e == JTAG_TAP_EVENT_ENABLE);
648 LOG_INFO("JTAG tap: %s %s", tap->dotted_name,
649 tap->enabled ? "enabled" : "disabled");
650 break;
651 default:
652 break;
653 }
654 }
655 }
656
657 static int jim_jtag_arp_init(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
658 {
659 Jim_GetOptInfo goi;
660 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
661 if (goi.argc != 0) {
662 Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
663 return JIM_ERR;
664 }
665 struct command_context *context = current_command_context(interp);
666 int e = jtag_init_inner(context);
667 if (e != ERROR_OK) {
668 Jim_Obj *eObj = Jim_NewIntObj(goi.interp, e);
669 Jim_SetResultFormatted(goi.interp, "error: %#s", eObj);
670 Jim_FreeNewObj(goi.interp, eObj);
671 return JIM_ERR;
672 }
673 return JIM_OK;
674 }
675
676 static int jim_jtag_arp_init_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
677 {
678 int e = ERROR_OK;
679 Jim_GetOptInfo goi;
680 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
681 if (goi.argc != 0) {
682 Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
683 return JIM_ERR;
684 }
685 struct command_context *context = current_command_context(interp);
686 if (transport_is_jtag())
687 e = jtag_init_reset(context);
688 else if (transport_is_swd())
689 e = swd_init_reset(context);
690
691 if (e != ERROR_OK) {
692 Jim_Obj *eObj = Jim_NewIntObj(goi.interp, e);
693 Jim_SetResultFormatted(goi.interp, "error: %#s", eObj);
694 Jim_FreeNewObj(goi.interp, eObj);
695 return JIM_ERR;
696 }
697 return JIM_OK;
698 }
699
700 int jim_jtag_newtap(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
701 {
702 Jim_GetOptInfo goi;
703 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
704 return jim_newtap_cmd(&goi);
705 }
706
707 static bool jtag_tap_enable(struct jtag_tap *t)
708 {
709 if (t->enabled)
710 return false;
711 jtag_tap_handle_event(t, JTAG_TAP_EVENT_ENABLE);
712 if (!t->enabled)
713 return false;
714
715 /* FIXME add JTAG sanity checks, w/o TLR
716 * - scan chain length grew by one (this)
717 * - IDs and IR lengths are as expected
718 */
719 jtag_call_event_callbacks(JTAG_TAP_EVENT_ENABLE);
720 return true;
721 }
722 static bool jtag_tap_disable(struct jtag_tap *t)
723 {
724 if (!t->enabled)
725 return false;
726 jtag_tap_handle_event(t, JTAG_TAP_EVENT_DISABLE);
727 if (t->enabled)
728 return false;
729
730 /* FIXME add JTAG sanity checks, w/o TLR
731 * - scan chain length shrank by one (this)
732 * - IDs and IR lengths are as expected
733 */
734 jtag_call_event_callbacks(JTAG_TAP_EVENT_DISABLE);
735 return true;
736 }
737
738 int jim_jtag_tap_enabler(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
739 {
740 const char *cmd_name = Jim_GetString(argv[0], NULL);
741 Jim_GetOptInfo goi;
742 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
743 if (goi.argc != 1) {
744 Jim_SetResultFormatted(goi.interp, "usage: %s <name>", cmd_name);
745 return JIM_ERR;
746 }
747
748 struct jtag_tap *t;
749
750 t = jtag_tap_by_jim_obj(goi.interp, goi.argv[0]);
751 if (t == NULL)
752 return JIM_ERR;
753
754 if (strcasecmp(cmd_name, "tapisenabled") == 0) {
755 /* do nothing, just return the value */
756 } else if (strcasecmp(cmd_name, "tapenable") == 0) {
757 if (!jtag_tap_enable(t)) {
758 LOG_WARNING("failed to enable tap %s", t->dotted_name);
759 return JIM_ERR;
760 }
761 } else if (strcasecmp(cmd_name, "tapdisable") == 0) {
762 if (!jtag_tap_disable(t)) {
763 LOG_WARNING("failed to disable tap %s", t->dotted_name);
764 return JIM_ERR;
765 }
766 } else {
767 LOG_ERROR("command '%s' unknown", cmd_name);
768 return JIM_ERR;
769 }
770 bool e = t->enabled;
771 Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, e));
772 return JIM_OK;
773 }
774
775 int jim_jtag_configure(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
776 {
777 const char *cmd_name = Jim_GetString(argv[0], NULL);
778 Jim_GetOptInfo goi;
779 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
780 goi.isconfigure = !strcmp(cmd_name, "configure");
781 if (goi.argc < 2 + goi.isconfigure) {
782 Jim_WrongNumArgs(goi.interp, 0, NULL,
783 "<tap_name> <attribute> ...");
784 return JIM_ERR;
785 }
786
787 struct jtag_tap *t;
788
789 Jim_Obj *o;
790 Jim_GetOpt_Obj(&goi, &o);
791 t = jtag_tap_by_jim_obj(goi.interp, o);
792 if (t == NULL)
793 return JIM_ERR;
794
795 return jtag_tap_configure_cmd(&goi, t);
796 }
797
798 static int jim_jtag_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
799 {
800 Jim_GetOptInfo goi;
801 Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
802 if (goi.argc != 0) {
803 Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
804 return JIM_ERR;
805 }
806 Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
807 struct jtag_tap *tap;
808
809 for (tap = jtag_all_taps(); tap; tap = tap->next_tap) {
810 Jim_ListAppendElement(goi.interp,
811 Jim_GetResult(goi.interp),
812 Jim_NewStringObj(goi.interp,
813 tap->dotted_name, -1));
814 }
815 return JIM_OK;
816 }
817
818 COMMAND_HANDLER(handle_jtag_init_command)
819 {
820 if (CMD_ARGC != 0)
821 return ERROR_COMMAND_SYNTAX_ERROR;
822
823 static bool jtag_initialized;
824 if (jtag_initialized) {
825 LOG_INFO("'jtag init' has already been called");
826 return ERROR_OK;
827 }
828 jtag_initialized = true;
829
830 LOG_DEBUG("Initializing jtag devices...");
831 return jtag_init(CMD_CTX);
832 }
833
834 static const struct command_registration jtag_subcommand_handlers[] = {
835 {
836 .name = "init",
837 .mode = COMMAND_ANY,
838 .handler = handle_jtag_init_command,
839 .help = "initialize jtag scan chain",
840 .usage = ""
841 },
842 {
843 .name = "arp_init",
844 .mode = COMMAND_ANY,
845 .jim_handler = jim_jtag_arp_init,
846 .help = "Validates JTAG scan chain against the list of "
847 "declared TAPs using just the four standard JTAG "
848 "signals.",
849 },
850 {
851 .name = "arp_init-reset",
852 .mode = COMMAND_ANY,
853 .jim_handler = jim_jtag_arp_init_reset,
854 .help = "Uses TRST and SRST to try resetting everything on "
855 "the JTAG scan chain, then performs 'jtag arp_init'."
856 },
857 {
858 .name = "newtap",
859 .mode = COMMAND_CONFIG,
860 .jim_handler = jim_jtag_newtap,
861 .help = "Create a new TAP instance named basename.tap_type, "
862 "and appends it to the scan chain.",
863 .usage = "basename tap_type '-irlen' count "
864 "['-enable'|'-disable'] "
865 "['-expected_id' number] "
866 "['-ignore-version'] "
867 "['-ircapture' number] "
868 "['-mask' number] ",
869 },
870 {
871 .name = "tapisenabled",
872 .mode = COMMAND_EXEC,
873 .jim_handler = jim_jtag_tap_enabler,
874 .help = "Returns a Tcl boolean (0/1) indicating whether "
875 "the TAP is enabled (1) or not (0).",
876 .usage = "tap_name",
877 },
878 {
879 .name = "tapenable",
880 .mode = COMMAND_EXEC,
881 .jim_handler = jim_jtag_tap_enabler,
882 .help = "Try to enable the specified TAP using the "
883 "'tap-enable' TAP event.",
884 .usage = "tap_name",
885 },
886 {
887 .name = "tapdisable",
888 .mode = COMMAND_EXEC,
889 .jim_handler = jim_jtag_tap_enabler,
890 .help = "Try to disable the specified TAP using the "
891 "'tap-disable' TAP event.",
892 .usage = "tap_name",
893 },
894 {
895 .name = "configure",
896 .mode = COMMAND_EXEC,
897 .jim_handler = jim_jtag_configure,
898 .help = "Provide a Tcl handler for the specified "
899 "TAP event.",
900 .usage = "tap_name '-event' event_name handler",
901 },
902 {
903 .name = "cget",
904 .mode = COMMAND_EXEC,
905 .jim_handler = jim_jtag_configure,
906 .help = "Return any Tcl handler for the specified "
907 "TAP event.",
908 .usage = "tap_name '-event' event_name",
909 },
910 {
911 .name = "names",
912 .mode = COMMAND_ANY,
913 .jim_handler = jim_jtag_names,
914 .help = "Returns list of all JTAG tap names.",
915 },
916 {
917 .chain = jtag_command_handlers_to_move,
918 },
919 COMMAND_REGISTRATION_DONE
920 };
921
922 void jtag_notify_event(enum jtag_event event)
923 {
924 struct jtag_tap *tap;
925
926 for (tap = jtag_all_taps(); tap; tap = tap->next_tap)
927 jtag_tap_handle_event(tap, event);
928 }
929
930
931 COMMAND_HANDLER(handle_scan_chain_command)
932 {
933 struct jtag_tap *tap;
934 char expected_id[12];
935
936 tap = jtag_all_taps();
937 command_print(CMD_CTX,
938 " TapName Enabled IdCode Expected IrLen IrCap IrMask");
939 command_print(CMD_CTX,
940 "-- ------------------- -------- ---------- ---------- ----- ----- ------");
941
942 while (tap) {
943 uint32_t expected, expected_mask, ii;
944
945 snprintf(expected_id, sizeof expected_id, "0x%08x",
946 (unsigned)((tap->expected_ids_cnt > 0)
947 ? tap->expected_ids[0]
948 : 0));
949 if (tap->ignore_version)
950 expected_id[2] = '*';
951
952 expected = buf_get_u32(tap->expected, 0, tap->ir_length);
953 expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
954
955 command_print(CMD_CTX,
956 "%2d %-18s %c 0x%08x %s %5d 0x%02x 0x%02x",
957 tap->abs_chain_position,
958 tap->dotted_name,
959 tap->enabled ? 'Y' : 'n',
960 (unsigned int)(tap->idcode),
961 expected_id,
962 (unsigned int)(tap->ir_length),
963 (unsigned int)(expected),
964 (unsigned int)(expected_mask));
965
966 for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
967 snprintf(expected_id, sizeof expected_id, "0x%08x",
968 (unsigned) tap->expected_ids[ii]);
969 if (tap->ignore_version)
970 expected_id[2] = '*';
971
972 command_print(CMD_CTX,
973 " %s",
974 expected_id);
975 }
976
977 tap = tap->next_tap;
978 }
979
980 return ERROR_OK;
981 }
982
983 COMMAND_HANDLER(handle_jtag_ntrst_delay_command)
984 {
985 if (CMD_ARGC > 1)
986 return ERROR_COMMAND_SYNTAX_ERROR;
987 if (CMD_ARGC == 1) {
988 unsigned delay;
989 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
990
991 jtag_set_ntrst_delay(delay);
992 }
993 command_print(CMD_CTX, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
994 return ERROR_OK;
995 }
996
997 COMMAND_HANDLER(handle_jtag_ntrst_assert_width_command)
998 {
999 if (CMD_ARGC > 1)
1000 return ERROR_COMMAND_SYNTAX_ERROR;
1001 if (CMD_ARGC == 1) {
1002 unsigned delay;
1003 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
1004
1005 jtag_set_ntrst_assert_width(delay);
1006 }
1007 command_print(CMD_CTX, "jtag_ntrst_assert_width: %u", jtag_get_ntrst_assert_width());
1008 return ERROR_OK;
1009 }
1010
1011 COMMAND_HANDLER(handle_jtag_rclk_command)
1012 {
1013 if (CMD_ARGC > 1)
1014 return ERROR_COMMAND_SYNTAX_ERROR;
1015
1016 int retval = ERROR_OK;
1017 if (CMD_ARGC == 1) {
1018 unsigned khz = 0;
1019 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], khz);
1020
1021 retval = jtag_config_rclk(khz);
1022 if (ERROR_OK != retval)
1023 return retval;
1024 }
1025
1026 int cur_khz = jtag_get_speed_khz();
1027 retval = jtag_get_speed_readable(&cur_khz);
1028 if (ERROR_OK != retval)
1029 return retval;
1030
1031 if (cur_khz)
1032 command_print(CMD_CTX, "RCLK not supported - fallback to %d kHz", cur_khz);
1033 else
1034 command_print(CMD_CTX, "RCLK - adaptive");
1035
1036 return retval;
1037 }
1038
1039 COMMAND_HANDLER(handle_jtag_reset_command)
1040 {
1041 if (CMD_ARGC != 2)
1042 return ERROR_COMMAND_SYNTAX_ERROR;
1043
1044 int trst = -1;
1045 if (CMD_ARGV[0][0] == '1')
1046 trst = 1;
1047 else if (CMD_ARGV[0][0] == '0')
1048 trst = 0;
1049 else
1050 return ERROR_COMMAND_SYNTAX_ERROR;
1051
1052 int srst = -1;
1053 if (CMD_ARGV[1][0] == '1')
1054 srst = 1;
1055 else if (CMD_ARGV[1][0] == '0')
1056 srst = 0;
1057 else
1058 return ERROR_COMMAND_SYNTAX_ERROR;
1059
1060 if (adapter_init(CMD_CTX) != ERROR_OK)
1061 return ERROR_JTAG_INIT_FAILED;
1062
1063 jtag_add_reset(trst, srst);
1064 return jtag_execute_queue();
1065 }
1066
1067 COMMAND_HANDLER(handle_runtest_command)
1068 {
1069 if (CMD_ARGC != 1)
1070 return ERROR_COMMAND_SYNTAX_ERROR;
1071
1072 unsigned num_clocks;
1073 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num_clocks);
1074
1075 jtag_add_runtest(num_clocks, TAP_IDLE);
1076 return jtag_execute_queue();
1077 }
1078
1079 /*
1080 * For "irscan" or "drscan" commands, the "end" (really, "next") state
1081 * should be stable ... and *NOT* a shift state, otherwise free-running
1082 * jtag clocks could change the values latched by the update state.
1083 * Not surprisingly, this is the same constraint as SVF; the "irscan"
1084 * and "drscan" commands are a write-only subset of what SVF provides.
1085 */
1086
1087 COMMAND_HANDLER(handle_irscan_command)
1088 {
1089 int i;
1090 struct scan_field *fields;
1091 struct jtag_tap *tap = NULL;
1092 tap_state_t endstate;
1093
1094 if ((CMD_ARGC < 2) || (CMD_ARGC % 2))
1095 return ERROR_COMMAND_SYNTAX_ERROR;
1096
1097 /* optional "-endstate" "statename" at the end of the arguments,
1098 * so that e.g. IRPAUSE can let us load the data register before
1099 * entering RUN/IDLE to execute the instruction we load here.
1100 */
1101 endstate = TAP_IDLE;
1102
1103 if (CMD_ARGC >= 4) {
1104 /* have at least one pair of numbers.
1105 * is last pair the magic text? */
1106 if (strcmp("-endstate", CMD_ARGV[CMD_ARGC - 2]) == 0) {
1107 endstate = tap_state_by_name(CMD_ARGV[CMD_ARGC - 1]);
1108 if (endstate == TAP_INVALID)
1109 return ERROR_COMMAND_SYNTAX_ERROR;
1110 if (!scan_is_safe(endstate))
1111 LOG_WARNING("unstable irscan endstate \"%s\"",
1112 CMD_ARGV[CMD_ARGC - 1]);
1113 CMD_ARGC -= 2;
1114 }
1115 }
1116
1117 int num_fields = CMD_ARGC / 2;
1118 if (num_fields > 1) {
1119 /* we really should be looking at plain_ir_scan if we want
1120 * anything more fancy.
1121 */
1122 LOG_ERROR("Specify a single value for tap");
1123 return ERROR_COMMAND_SYNTAX_ERROR;
1124 }
1125
1126 fields = calloc(num_fields, sizeof(*fields));
1127
1128 int retval;
1129 for (i = 0; i < num_fields; i++) {
1130 tap = jtag_tap_by_string(CMD_ARGV[i*2]);
1131 if (tap == NULL) {
1132 free(fields);
1133 command_print(CMD_CTX, "Tap: %s unknown", CMD_ARGV[i*2]);
1134
1135 return ERROR_FAIL;
1136 }
1137 int field_size = tap->ir_length;
1138 fields[i].num_bits = field_size;
1139 uint8_t *v = malloc(DIV_ROUND_UP(field_size, 8));
1140
1141 uint64_t value;
1142 retval = parse_u64(CMD_ARGV[i * 2 + 1], &value);
1143 if (ERROR_OK != retval)
1144 goto error_return;
1145 buf_set_u64(v, 0, field_size, value);
1146 fields[i].out_value = v;
1147 fields[i].in_value = NULL;
1148 }
1149
1150 /* did we have an endstate? */
1151 jtag_add_ir_scan(tap, fields, endstate);
1152
1153 retval = jtag_execute_queue();
1154
1155 error_return:
1156 for (i = 0; i < num_fields; i++) {
1157 if (NULL != fields[i].out_value)
1158 free((void *)fields[i].out_value);
1159 }
1160
1161 free(fields);
1162
1163 return retval;
1164 }
1165
1166 COMMAND_HANDLER(handle_verify_ircapture_command)
1167 {
1168 if (CMD_ARGC > 1)
1169 return ERROR_COMMAND_SYNTAX_ERROR;
1170
1171 if (CMD_ARGC == 1) {
1172 bool enable;
1173 COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
1174 jtag_set_verify_capture_ir(enable);
1175 }
1176
1177 const char *status = jtag_will_verify_capture_ir() ? "enabled" : "disabled";
1178 command_print(CMD_CTX, "verify Capture-IR is %s", status);
1179
1180 return ERROR_OK;
1181 }
1182
1183 COMMAND_HANDLER(handle_verify_jtag_command)
1184 {
1185 if (CMD_ARGC > 1)
1186 return ERROR_COMMAND_SYNTAX_ERROR;
1187
1188 if (CMD_ARGC == 1) {
1189 bool enable;
1190 COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
1191 jtag_set_verify(enable);
1192 }
1193
1194 const char *status = jtag_will_verify() ? "enabled" : "disabled";
1195 command_print(CMD_CTX, "verify jtag capture is %s", status);
1196
1197 return ERROR_OK;
1198 }
1199
1200 COMMAND_HANDLER(handle_tms_sequence_command)
1201 {
1202 if (CMD_ARGC > 1)
1203 return ERROR_COMMAND_SYNTAX_ERROR;
1204
1205 if (CMD_ARGC == 1) {
1206 bool use_new_table;
1207 if (strcmp(CMD_ARGV[0], "short") == 0)
1208 use_new_table = true;
1209 else if (strcmp(CMD_ARGV[0], "long") == 0)
1210 use_new_table = false;
1211 else
1212 return ERROR_COMMAND_SYNTAX_ERROR;
1213
1214 tap_use_new_tms_table(use_new_table);
1215 }
1216
1217 command_print(CMD_CTX, "tms sequence is %s",
1218 tap_uses_new_tms_table() ? "short" : "long");
1219
1220 return ERROR_OK;
1221 }
1222
1223 COMMAND_HANDLER(handle_jtag_flush_queue_sleep)
1224 {
1225 if (CMD_ARGC != 1)
1226 return ERROR_COMMAND_SYNTAX_ERROR;
1227
1228 int sleep_ms;
1229 COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], sleep_ms);
1230
1231 jtag_set_flush_queue_sleep(sleep_ms);
1232
1233 return ERROR_OK;
1234 }
1235
1236 COMMAND_HANDLER(handle_wait_srst_deassert)
1237 {
1238 if (CMD_ARGC != 1)
1239 return ERROR_COMMAND_SYNTAX_ERROR;
1240
1241 int timeout_ms;
1242 COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], timeout_ms);
1243 if ((timeout_ms <= 0) || (timeout_ms > 100000)) {
1244 LOG_ERROR("Timeout must be an integer between 0 and 100000");
1245 return ERROR_FAIL;
1246 }
1247
1248 LOG_USER("Waiting for srst assert + deassert for at most %dms", timeout_ms);
1249 int asserted_yet;
1250 long long then = timeval_ms();
1251 while (jtag_srst_asserted(&asserted_yet) == ERROR_OK) {
1252 if ((timeval_ms() - then) > timeout_ms) {
1253 LOG_ERROR("Timed out");
1254 return ERROR_FAIL;
1255 }
1256 if (asserted_yet)
1257 break;
1258 }
1259 while (jtag_srst_asserted(&asserted_yet) == ERROR_OK) {
1260 if ((timeval_ms() - then) > timeout_ms) {
1261 LOG_ERROR("Timed out");
1262 return ERROR_FAIL;
1263 }
1264 if (!asserted_yet)
1265 break;
1266 }
1267
1268 return ERROR_OK;
1269 }
1270
1271 static const struct command_registration jtag_command_handlers[] = {
1272
1273 {
1274 .name = "jtag_flush_queue_sleep",
1275 .handler = handle_jtag_flush_queue_sleep,
1276 .mode = COMMAND_ANY,
1277 .help = "For debug purposes(simulate long delays of interface) "
1278 "to test performance or change in behavior. Default 0ms.",
1279 .usage = "[sleep in ms]",
1280 },
1281 {
1282 .name = "jtag_rclk",
1283 .handler = handle_jtag_rclk_command,
1284 .mode = COMMAND_ANY,
1285 .help = "With an argument, change to to use adaptive clocking "
1286 "if possible; else to use the fallback speed. "
1287 "With or without argument, display current setting.",
1288 .usage = "[fallback_speed_khz]",
1289 },
1290 {
1291 .name = "jtag_ntrst_delay",
1292 .handler = handle_jtag_ntrst_delay_command,
1293 .mode = COMMAND_ANY,
1294 .help = "delay after deasserting trst in ms",
1295 .usage = "[milliseconds]",
1296 },
1297 {
1298 .name = "jtag_ntrst_assert_width",
1299 .handler = handle_jtag_ntrst_assert_width_command,
1300 .mode = COMMAND_ANY,
1301 .help = "delay after asserting trst in ms",
1302 .usage = "[milliseconds]",
1303 },
1304 {
1305 .name = "scan_chain",
1306 .handler = handle_scan_chain_command,
1307 .mode = COMMAND_ANY,
1308 .help = "print current scan chain configuration",
1309 .usage = ""
1310 },
1311 {
1312 .name = "jtag_reset",
1313 .handler = handle_jtag_reset_command,
1314 .mode = COMMAND_EXEC,
1315 .help = "Set reset line values. Value '1' is active, "
1316 "value '0' is inactive.",
1317 .usage = "trst_active srst_active",
1318 },
1319 {
1320 .name = "runtest",
1321 .handler = handle_runtest_command,
1322 .mode = COMMAND_EXEC,
1323 .help = "Move to Run-Test/Idle, and issue TCK for num_cycles.",
1324 .usage = "num_cycles"
1325 },
1326 {
1327 .name = "irscan",
1328 .handler = handle_irscan_command,
1329 .mode = COMMAND_EXEC,
1330 .help = "Execute Instruction Register (DR) scan. The "
1331 "specified opcodes are put into each TAP's IR, "
1332 "and other TAPs are put in BYPASS.",
1333 .usage = "[tap_name instruction]* ['-endstate' state_name]",
1334 },
1335 {
1336 .name = "verify_ircapture",
1337 .handler = handle_verify_ircapture_command,
1338 .mode = COMMAND_ANY,
1339 .help = "Display or assign flag controlling whether to "
1340 "verify values captured during Capture-IR.",
1341 .usage = "['enable'|'disable']",
1342 },
1343 {
1344 .name = "verify_jtag",
1345 .handler = handle_verify_jtag_command,
1346 .mode = COMMAND_ANY,
1347 .help = "Display or assign flag controlling whether to "
1348 "verify values captured during IR and DR scans.",
1349 .usage = "['enable'|'disable']",
1350 },
1351 {
1352 .name = "tms_sequence",
1353 .handler = handle_tms_sequence_command,
1354 .mode = COMMAND_ANY,
1355 .help = "Display or change what style TMS sequences to use "
1356 "for JTAG state transitions: short (default) or "
1357 "long. Only for working around JTAG bugs.",
1358 /* Specifically for working around DRIVER bugs... */
1359 .usage = "['short'|'long']",
1360 },
1361 {
1362 .name = "wait_srst_deassert",
1363 .handler = handle_wait_srst_deassert,
1364 .mode = COMMAND_ANY,
1365 .help = "Wait for an SRST deassert. "
1366 "Useful for cases where you need something to happen within ms "
1367 "of an srst deassert. Timeout in ms ",
1368 .usage = "ms",
1369 },
1370 {
1371 .name = "jtag",
1372 .mode = COMMAND_ANY,
1373 .help = "perform jtag tap actions",
1374 .usage = "",
1375
1376 .chain = jtag_subcommand_handlers,
1377 },
1378 {
1379 .chain = jtag_command_handlers_to_move,
1380 },
1381 COMMAND_REGISTRATION_DONE
1382 };
1383
1384 int jtag_register_commands(struct command_context *cmd_ctx)
1385 {
1386 return register_commands(cmd_ctx, NULL, jtag_command_handlers);
1387 }
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