1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007-2010 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
26 #include <helper/binarybuffer.h>
27 #include <helper/log.h>
29 #ifdef _DEBUG_JTAG_IO_
30 #define DEBUG_JTAG_IO(expr ...) \
31 do { if (1) LOG_DEBUG(expr); } while (0)
33 #define DEBUG_JTAG_IO(expr ...) \
34 do { if (0) LOG_DEBUG(expr); } while (0)
37 #ifndef DEBUG_JTAG_IOZ
38 #define DEBUG_JTAG_IOZ 64
41 /*-----</Macros>-------------------------------------------------*/
44 * Defines JTAG Test Access Port states.
46 * These definitions were gleaned from the ARM7TDMI-S Technical
47 * Reference Manual and validated against several other ARM core
50 * FIXME some interfaces require specific numbers be used, as they
51 * are handed-off directly to their hardware implementations.
52 * Fix those drivers to map as appropriate ... then pick some
53 * sane set of numbers here (where 0/uninitialized == INVALID).
55 typedef enum tap_state
60 /* These are the old numbers. Leave as-is for now... */
61 TAP_RESET
= 0, TAP_IDLE
= 8,
62 TAP_DRSELECT
= 1, TAP_DRCAPTURE
= 2, TAP_DRSHIFT
= 3, TAP_DREXIT1
= 4,
63 TAP_DRPAUSE
= 5, TAP_DREXIT2
= 6, TAP_DRUPDATE
= 7,
64 TAP_IRSELECT
= 9, TAP_IRCAPTURE
= 10, TAP_IRSHIFT
= 11, TAP_IREXIT1
= 12,
65 TAP_IRPAUSE
= 13, TAP_IREXIT2
= 14, TAP_IRUPDATE
= 15,
68 /* Proper ARM recommended numbers */
90 * Function tap_state_name
91 * Returns a string suitable for display representing the JTAG tap_state
93 const char *tap_state_name(tap_state_t state
);
95 /// Provides user-friendly name lookup of TAP states.
96 tap_state_t
tap_state_by_name(const char *name
);
98 /// The current TAP state of the pending JTAG command queue.
99 extern tap_state_t cmd_queue_cur_state
;
102 * This structure defines a single scan field in the scan. It provides
103 * fields for the field's width and pointers to scan input and output
106 * In addition, this structure includes a value and mask that is used by
107 * jtag_add_dr_scan_check() to validate the value that was scanned out.
109 * The allocated, modified, and intmp fields are internal work space.
112 /// The number of bits this field specifies (up to 32)
114 /// A pointer to value to be scanned into the device
115 const uint8_t* out_value
;
116 /// A pointer to a 32-bit memory location for data scanned out
119 /// The value used to check the data scanned out.
120 uint8_t* check_value
;
121 /// The mask to go with check_value
124 /// in_value has been allocated for the queue
126 /// Indicates we modified the in_value.
128 /// temporary storage for performing value checks synchronously
135 const char* dotted_name
;
136 int abs_chain_position
;
137 /// Is this TAP disabled after JTAG reset?
138 bool disabled_after_reset
;
139 /// Is this TAP currently enabled?
141 int ir_length
; /**< size of instruction register */
142 uint32_t ir_capture_value
;
143 uint8_t* expected
; /**< Capture-IR expected value */
144 uint32_t ir_capture_mask
;
145 uint8_t* expected_mask
; /**< Capture-IR expected mask */
146 uint32_t idcode
; /**< device identification code */
147 /** not all devices have idcode,
148 * we'll discover this during chain examination */
151 /// Array of expected identification codes */
152 uint32_t* expected_ids
;
153 /// Number of expected identification codes
154 uint8_t expected_ids_cnt
;
156 /// Flag saying whether to ignore version field in expected_ids[]
159 /// current instruction
161 /// Bypass register selected
164 struct jtag_tap_event_action
*event_action
;
166 struct jtag_tap
* next_tap
;
169 void jtag_tap_init(struct jtag_tap
*tap
);
170 void jtag_tap_free(struct jtag_tap
*tap
);
172 struct jtag_tap
* jtag_all_taps(void);
173 const char *jtag_tap_name(const struct jtag_tap
*tap
);
174 struct jtag_tap
* jtag_tap_by_string(const char* dotted_name
);
175 struct jtag_tap
* jtag_tap_by_jim_obj(Jim_Interp
* interp
, Jim_Obj
* obj
);
176 struct jtag_tap
* jtag_tap_next_enabled(struct jtag_tap
* p
);
177 unsigned jtag_tap_count_enabled(void);
178 unsigned jtag_tap_count(void);
182 * - TRST_ASSERTED triggers two sets of callbacks, after operations to
183 * reset the scan chain -- via TMS+TCK signaling, or deasserting the
184 * nTRST signal -- are queued:
186 * + Callbacks in C code fire first, patching internal state
187 * + Then post-reset event scripts fire ... activating JTAG circuits
188 * via TCK cycles, exiting SWD mode via TMS sequences, etc
190 * During those callbacks, scan chain contents have not been validated.
191 * JTAG operations that address a specific TAP (primarily DR/IR scans)
192 * must *not* be queued.
194 * - TAP_EVENT_SETUP is reported after TRST_ASSERTED, and after the scan
195 * chain has been validated. JTAG operations including scans that
196 * target specific TAPs may be performed.
198 * - TAP_EVENT_ENABLE and TAP_EVENT_DISABLE implement TAP activation and
199 * deactivation outside the core using scripted code that understands
200 * the specific JTAG router type. They might be triggered indirectly
201 * from EVENT_SETUP operations.
205 JTAG_TAP_EVENT_SETUP
,
206 JTAG_TAP_EVENT_ENABLE
,
207 JTAG_TAP_EVENT_DISABLE
,
210 struct jtag_tap_event_action
212 /// The event for which this action will be triggered.
213 enum jtag_event event
;
214 /// The interpreter to use for evaluating the @c body.
216 /// Contains a script to 'eval' when the @c event is triggered.
218 // next action in linked list
219 struct jtag_tap_event_action
*next
;
223 * Defines the function signature requide for JTAG event callback
224 * functions, which are added with jtag_register_event_callback()
225 * and removed jtag_unregister_event_callback().
226 * @param event The event to handle.
227 * @param prive A pointer to data that was passed to
228 * jtag_register_event_callback().
229 * @returns Must return ERROR_OK on success, or an error code on failure.
231 * @todo Change to return void or define a use for its return code.
233 typedef int (*jtag_event_handler_t
)(enum jtag_event event
, void* priv
);
235 int jtag_register_event_callback(jtag_event_handler_t f
, void *x
);
236 int jtag_unregister_event_callback(jtag_event_handler_t f
, void *x
);
238 int jtag_call_event_callbacks(enum jtag_event event
);
241 /// @returns The current JTAG speed setting.
242 int jtag_get_speed(int *speed
);
245 * Given a @a speed setting, use the interface @c speed_div callback to
246 * adjust the setting.
247 * @param speed The speed setting to convert back to readable KHz.
248 * @returns ERROR_OK if the interface has not been initialized or on success;
249 * otherwise, the error code produced by the @c speed_div callback.
251 int jtag_get_speed_readable(int *speed
);
253 /// Attempt to configure the interface for the specified KHz.
254 int jtag_config_khz(unsigned khz
);
257 * Attempt to enable RTCK/RCLK. If that fails, fallback to the
258 * specified frequency.
260 int jtag_config_rclk(unsigned fallback_speed_khz
);
262 /// Retreives the clock speed of the JTAG interface in KHz.
263 unsigned jtag_get_speed_khz(void);
268 RESET_HAS_TRST
= 0x1,
269 RESET_HAS_SRST
= 0x2,
270 RESET_TRST_AND_SRST
= 0x3,
271 RESET_SRST_PULLS_TRST
= 0x4,
272 RESET_TRST_PULLS_SRST
= 0x8,
273 RESET_TRST_OPEN_DRAIN
= 0x10,
274 RESET_SRST_PUSH_PULL
= 0x20,
275 RESET_SRST_NO_GATING
= 0x40,
278 enum reset_types
jtag_get_reset_config(void);
279 void jtag_set_reset_config(enum reset_types type
);
281 void jtag_set_nsrst_delay(unsigned delay
);
282 unsigned jtag_get_nsrst_delay(void);
284 void jtag_set_ntrst_delay(unsigned delay
);
285 unsigned jtag_get_ntrst_delay(void);
287 void jtag_set_nsrst_assert_width(unsigned delay
);
288 unsigned jtag_get_nsrst_assert_width(void);
290 void jtag_set_ntrst_assert_width(unsigned delay
);
291 unsigned jtag_get_ntrst_assert_width(void);
293 /// @returns The current state of TRST.
294 int jtag_get_trst(void);
295 /// @returns The current state of SRST.
296 int jtag_get_srst(void);
298 /// Enable or disable data scan verification checking.
299 void jtag_set_verify(bool enable
);
300 /// @returns True if data scan verification will be performed.
301 bool jtag_will_verify(void);
303 /// Enable or disable verification of IR scan checking.
304 void jtag_set_verify_capture_ir(bool enable
);
305 /// @returns True if IR scan verification will be performed.
306 bool jtag_will_verify_capture_ir(void);
308 /** Initialize debug adapter upon startup. */
309 int adapter_init(struct command_context
* cmd_ctx
);
311 /// Shutdown the debug adapter upon program exit.
312 int adapter_quit(void);
314 /// Set ms to sleep after jtag_execute_queue() flushes queue. Debug
316 void jtag_set_flush_queue_sleep(int ms
);
319 * Initialize JTAG chain using only a RESET reset. If init fails,
322 int jtag_init(struct command_context
* cmd_ctx
);
324 /// reset, then initialize JTAG chain
325 int jtag_init_reset(struct command_context
* cmd_ctx
);
326 int jtag_register_commands(struct command_context
* cmd_ctx
);
327 int jtag_init_inner(struct command_context
*cmd_ctx
);
331 * The JTAG interface can be implemented with a software or hardware fifo.
333 * TAP_DRSHIFT and TAP_IRSHIFT are illegal end states; however,
334 * TAP_DRSHIFT/IRSHIFT can be emulated as end states, by using longer
337 * Code that is relatively insensitive to the path taken through state
338 * machine (as long as it is JTAG compliant) can use @a endstate for
339 * jtag_add_xxx_scan(). Otherwise, the pause state must be specified as
340 * end state and a subsequent jtag_add_pathmove() must be issued.
344 * Generate an IR SCAN with a list of scan fields with one entry for
347 * If the input field list contains an instruction value for a TAP then
348 * that is used otherwise the TAP is set to bypass.
350 * TAPs for which no fields are passed are marked as bypassed for
351 * subsequent DR SCANs.
354 void jtag_add_ir_scan(struct jtag_tap
* tap
,
355 struct scan_field
* fields
, tap_state_t endstate
);
357 * The same as jtag_add_ir_scan except no verification is performed out
360 void jtag_add_ir_scan_noverify(struct jtag_tap
* tap
,
361 const struct scan_field
*fields
, tap_state_t state
);
363 * Scan out the bits in ir scan mode.
365 * If in_bits == NULL, discard incoming bits.
367 void jtag_add_plain_ir_scan(int num_bits
, const uint8_t *out_bits
, uint8_t *in_bits
,
368 tap_state_t endstate
);
372 * Set in_value to point to 32 bits of memory to scan into. This
373 * function is a way to handle the case of synchronous and asynchronous
376 * In the event of an asynchronous queue execution the queue buffer
377 * allocation method is used, for the synchronous case the temporary 32
378 * bits come from the input field itself.
380 void jtag_alloc_in_value32(struct scan_field
*field
);
383 * Generate a DR SCAN using the fields passed to the function.
384 * For connected TAPs, the function checks in_fields and uses fields
385 * specified there. For bypassed TAPs, the function generates a dummy
386 * 1-bit field. The bypass status of TAPs is set by jtag_add_ir_scan().
388 void jtag_add_dr_scan(struct jtag_tap
* tap
, int num_fields
,
389 const struct scan_field
* fields
, tap_state_t endstate
);
390 /// A version of jtag_add_dr_scan() that uses the check_value/mask fields
391 void jtag_add_dr_scan_check(struct jtag_tap
* tap
, int num_fields
,
392 struct scan_field
* fields
, tap_state_t endstate
);
394 * Scan out the bits in ir scan mode.
396 * If in_bits == NULL, discard incoming bits.
398 void jtag_add_plain_dr_scan(int num_bits
,
399 const uint8_t *out_bits
, uint8_t *in_bits
, tap_state_t endstate
);
402 * Defines the type of data passed to the jtag_callback_t interface.
403 * The underlying type must allow storing an @c int or pointer type.
405 typedef intptr_t jtag_callback_data_t
;
408 * Defines a simple JTAG callback that can allow conversions on data
409 * scanned in from an interface.
411 * This callback should only be used for conversion that cannot fail.
412 * For conversion types or checks that can fail, use the more complete
413 * variant: jtag_callback_t.
415 typedef void (*jtag_callback1_t
)(jtag_callback_data_t data0
);
417 /// A simpler version of jtag_add_callback4().
418 void jtag_add_callback(jtag_callback1_t
, jtag_callback_data_t data0
);
422 * Defines the interface of the JTAG callback mechanism. Such
423 * callbacks can be executed once the queue has been flushed.
425 * The JTAG queue can be executed synchronously or asynchronously.
426 * Typically for USB, the queue is executed asynchronously. For
427 * low-latency interfaces, the queue may be executed synchronously.
429 * The callback mechanism is very general and does not make many
430 * assumptions about what the callback does or what its arguments are.
431 * These callbacks are typically executed *after* the *entire* JTAG
432 * queue has been executed for e.g. USB interfaces, and they are
433 * guaranteeed to be invoked in the order that they were queued.
435 * If the execution of the queue fails before the callbacks, then --
436 * depending on driver implementation -- the callbacks may or may not be
439 * @todo Make that behavior consistent.
441 * @param data0 Typically used to point to the data to operate on.
442 * Frequently this will be the data clocked in during a shift operation.
443 * @param data1 An integer big enough to use as an @c int or a pointer.
444 * @param data2 An integer big enough to use as an @c int or a pointer.
445 * @param data3 An integer big enough to use as an @c int or a pointer.
446 * @returns an error code
448 typedef int (*jtag_callback_t
)(jtag_callback_data_t data0
,
449 jtag_callback_data_t data1
,
450 jtag_callback_data_t data2
,
451 jtag_callback_data_t data3
);
454 * Run a TAP_RESET reset where the end state is TAP_RESET,
455 * regardless of the start state.
457 void jtag_add_tlr(void);
460 * Application code *must* assume that interfaces will
461 * implement transitions between states with different
462 * paths and path lengths through the state diagram. The
463 * path will vary across interface and also across versions
464 * of the same interface over time. Even if the OpenOCD code
465 * is unchanged, the actual path taken may vary over time
466 * and versions of interface firmware or PCB revisions.
468 * Use jtag_add_pathmove() when specific transition sequences
471 * Do not use jtag_add_pathmove() unless you need to, but do use it
474 * DANGER! If the target is dependent upon a particular sequence
475 * of transitions for things to work correctly(e.g. as a workaround
476 * for an errata that contradicts the JTAG standard), then pathmove
477 * must be used, even if some jtag interfaces happen to use the
478 * desired path. Worse, the jtag interface used for testing a
479 * particular implementation, could happen to use the "desired"
480 * path when transitioning to/from end
483 * A list of unambigious single clock state transitions, not
484 * all drivers can support this, but it is required for e.g.
485 * XScale and Xilinx support
487 * Note! TAP_RESET must not be used in the path!
489 * Note that the first on the list must be reachable
490 * via a single transition from the current state.
492 * All drivers are required to implement jtag_add_pathmove().
493 * However, if the pathmove sequence can not be precisely
494 * executed, an interface_jtag_add_pathmove() or jtag_execute_queue()
495 * must return an error. It is legal, but not recommended, that
496 * a driver returns an error in all cases for a pathmove if it
497 * can only implement a few transitions and therefore
498 * a partial implementation of pathmove would have little practical
501 * If an error occurs, jtag_error will contain one of these error codes:
502 * - ERROR_JTAG_NOT_STABLE_STATE -- The final state was not stable.
503 * - ERROR_JTAG_STATE_INVALID -- The path passed through TAP_RESET.
504 * - ERROR_JTAG_TRANSITION_INVALID -- The path includes invalid
507 void jtag_add_pathmove(int num_states
, const tap_state_t
* path
);
510 * jtag_add_statemove() moves from the current state to @a goal_state.
512 * @param goal_state The final TAP state.
513 * @return ERROR_OK on success, or an error code on failure.
515 * Moves from the current state to the goal \a state.
516 * Both states must be stable.
518 int jtag_add_statemove(tap_state_t goal_state
);
521 * Goes to TAP_IDLE (if we're not already there), cycle
522 * precisely num_cycles in the TAP_IDLE state, after which move
523 * to @a endstate (unless it is also TAP_IDLE).
525 * @param num_cycles Number of cycles in TAP_IDLE state. This argument
526 * may be 0, in which case this routine will navigate to @a endstate
528 * @param endstate The final state.
530 void jtag_add_runtest(int num_cycles
, tap_state_t endstate
);
533 * A reset of the TAP state machine can be requested.
535 * Whether tms or trst reset is used depends on the capabilities of
536 * the target and jtag interface(reset_config command configures this).
538 * srst can driver a reset of the TAP state machine and vice
541 * Application code may need to examine value of jtag_reset_config
542 * to determine the proper codepath
544 * DANGER! Even though srst drives trst, trst might not be connected to
545 * the interface, and it might actually be *harmful* to assert trst in this case.
547 * This is why combinations such as "reset_config srst_only srst_pulls_trst"
550 * only req_tlr_or_trst and srst can have a transition for a
551 * call as the effects of transitioning both at the "same time"
552 * are undefined, but when srst_pulls_trst or vice versa,
553 * then trst & srst *must* be asserted together.
555 void jtag_add_reset(int req_tlr_or_trst
, int srst
);
557 void jtag_add_sleep(uint32_t us
);
559 int jtag_add_tms_seq(unsigned nbits
, const uint8_t *seq
, enum tap_state t
);
562 * Function jtag_add_clocks
563 * first checks that the state in which the clocks are to be issued is
564 * stable, then queues up num_cycles clocks for transmission.
566 void jtag_add_clocks(int num_cycles
);
570 * For software FIFO implementations, the queued commands can be executed
571 * during this call or earlier. A sw queue might decide to push out
572 * some of the jtag_add_xxx() operations once the queue is "big enough".
574 * This fn will return an error code if any of the prior jtag_add_xxx()
575 * calls caused a failure, e.g. check failure. Note that it does not
576 * matter if the operation was executed *before* jtag_execute_queue(),
577 * jtag_execute_queue() will still return an error code.
579 * All jtag_add_xxx() calls that have in_handler != NULL will have been
580 * executed when this fn returns, but if what has been queued only
581 * clocks data out, without reading anything back, then JTAG could
582 * be running *after* jtag_execute_queue() returns. The API does
583 * not define a way to flush a hw FIFO that runs *after*
584 * jtag_execute_queue() returns.
586 * jtag_add_xxx() commands can either be executed immediately or
587 * at some time between the jtag_add_xxx() fn call and jtag_execute_queue().
589 int jtag_execute_queue(void);
591 /// same as jtag_execute_queue() but does not clear the error flag
592 void jtag_execute_queue_noclear(void);
594 /// @returns the number of times the scan queue has been flushed
595 int jtag_get_flush_queue_count(void);
597 /// Report Tcl event to all TAPs
598 void jtag_notify_event(enum jtag_event
);
601 /* can be implemented by hw + sw */
602 int jtag_power_dropout(int* dropout
);
603 int jtag_srst_asserted(int* srst_asserted
);
605 /* JTAG support functions */
608 * Execute jtag queue and check value with an optional mask.
609 * @param field Pointer to scan field.
610 * @param value Pointer to scan value.
611 * @param mask Pointer to scan mask; may be NULL.
612 * @returns Nothing, but calls jtag_set_error() on any error.
614 void jtag_check_value_mask(struct scan_field
*field
, uint8_t *value
, uint8_t *mask
);
616 void jtag_sleep(uint32_t us
);
619 * The JTAG subsystem defines a number of error codes,
620 * using codes between -100 and -199.
622 #define ERROR_JTAG_INIT_FAILED (-100)
623 #define ERROR_JTAG_INVALID_INTERFACE (-101)
624 #define ERROR_JTAG_NOT_IMPLEMENTED (-102)
625 #define ERROR_JTAG_TRST_ASSERTED (-103)
626 #define ERROR_JTAG_QUEUE_FAILED (-104)
627 #define ERROR_JTAG_NOT_STABLE_STATE (-105)
628 #define ERROR_JTAG_DEVICE_ERROR (-107)
629 #define ERROR_JTAG_STATE_INVALID (-108)
630 #define ERROR_JTAG_TRANSITION_INVALID (-109)
631 #define ERROR_JTAG_INIT_SOFT_FAIL (-110)
634 * jtag_add_dr_out() is a version of jtag_add_dr_scan() which
635 * only scans data out. It operates on 32 bit integers instead
636 * of 8 bit, which makes it a better impedance match with
637 * the calling code which often operate on 32 bit integers.
639 * Current or end_state can not be TAP_RESET. end_state can be TAP_INVALID
641 * num_bits[i] is the number of bits to clock out from value[i] LSB first.
643 * If the device is in bypass, then that is an error condition in
644 * the caller code that is not detected by this fn, whereas
645 * jtag_add_dr_scan() does detect it. Similarly if the device is not in
646 * bypass, data must be passed to it.
648 * If anything fails, then jtag_error will be set and jtag_execute() will
649 * return an error. There is no way to determine if there was a failure
650 * during this function call.
652 * This is an inline fn to speed up embedded hosts. Also note that
653 * interface_jtag_add_dr_out() can be a *small* inline function for
656 * There is no jtag_add_dr_outin() version of this fn that also allows
657 * clocking data back in. Patches gladly accepted!
662 * Set the current JTAG core execution error, unless one was set
663 * by a previous call previously. Driver or application code must
664 * use jtag_error_clear to reset jtag_error once this routine has been
665 * called with a non-zero error code.
667 void jtag_set_error(int error
);
669 * Resets jtag_error to ERROR_OK, returning its previous value.
670 * @returns The previous value of @c jtag_error.
672 int jtag_error_clear(void);
675 * Return true if it's safe for a background polling task to access the
676 * JTAG scan chain. Polling may be explicitly disallowed, and is also
677 * unsafe while nTRST is active or the JTAG clock is gated off.
679 bool is_jtag_poll_safe(void);
682 * Return flag reporting whether JTAG polling is disallowed.
684 bool jtag_poll_get_enabled(void);
687 * Assign flag reporting whether JTAG polling is disallowed.
689 void jtag_poll_set_enabled(bool value
);
692 /* The minidriver may have inline versions of some of the low
693 * level APIs that are used in inner loops. */
694 #include <jtag/minidriver.h>
696 bool transport_is_jtag(void);
Linking to existing account procedure
If you already have an account and want to add another login method
you
MUST first sign in with your existing account and
then change URL to read
https://review.openocd.org/login/?link
to get to this page again but this time it'll work for linking. Thank you.
SSH host keys fingerprints
1024 SHA256:YKx8b7u5ZWdcbp7/4AeXNaqElP49m6QrwfXaqQGJAOk gerrit-code-review@openocd.zylin.com (DSA)
384 SHA256:jHIbSQa4REvwCFG4cq5LBlBLxmxSqelQPem/EXIrxjk gerrit-code-review@openocd.org (ECDSA)
521 SHA256:UAOPYkU9Fjtcao0Ul/Rrlnj/OsQvt+pgdYSZ4jOYdgs gerrit-code-review@openocd.org (ECDSA)
256 SHA256:A13M5QlnozFOvTllybRZH6vm7iSt0XLxbA48yfc2yfY gerrit-code-review@openocd.org (ECDSA)
256 SHA256:spYMBqEYoAOtK7yZBrcwE8ZpYt6b68Cfh9yEVetvbXg gerrit-code-review@openocd.org (ED25519)
+--[ED25519 256]--+
|=.. |
|+o.. . |
|*.o . . |
|+B . . . |
|Bo. = o S |
|Oo.+ + = |
|oB=.* = . o |
| =+=.+ + E |
|. .=o . o |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)