1 /***************************************************************************
2 * Copyright (C) 2007-2008 by Øyvind Harboe *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
18 ***************************************************************************/
27 #include "../target/embeddedice.h"
30 #include <cyg/hal/hal_io.h> // low level i/o
31 #include <cyg/hal/hal_diag.h>
35 #define ZYLIN_VERSION "1.51"
36 #define ZYLIN_DATE __DATE__
37 #define ZYLIN_TIME __TIME__
38 #define ZYLIN_OPENOCD "$Revision$"
39 #define ZYLIN_OPENOCD_VERSION "Zylin JTAG ZY1000 " ZYLIN_VERSION " " ZYLIN_DATE " " ZYLIN_TIME
40 const char *zylin_config_dir
="/config/settings";
42 /* low level command set
44 int zy1000_read(void);
45 static void zy1000_write(int tck
, int tms
, int tdi
);
46 void zy1000_reset(int trst
, int srst
);
49 int zy1000_speed(int speed
);
50 int zy1000_register_commands(struct command_context_s
*cmd_ctx
);
51 int zy1000_init(void);
52 int zy1000_quit(void);
54 /* interface commands */
55 int zy1000_handle_zy1000_port_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
57 static int zy1000_khz(int khz
, int *jtag_speed
)
65 *jtag_speed
=64000/khz
;
70 static int zy1000_speed_div(int speed
, int *khz
)
84 static bool readPowerDropout(void)
87 // sample and clear power dropout
88 HAL_WRITE_UINT32(ZY1000_JTAG_BASE
+0x10, 0x80);
89 HAL_READ_UINT32(ZY1000_JTAG_BASE
+0x10, state
);
91 powerDropout
= (state
& 0x80) != 0;
96 static bool readSRST(void)
99 // sample and clear SRST sensing
100 HAL_WRITE_UINT32(ZY1000_JTAG_BASE
+0x10, 0x00000040);
101 HAL_READ_UINT32(ZY1000_JTAG_BASE
+0x10, state
);
103 srstAsserted
= (state
& 0x40) != 0;
107 static int zy1000_srst_asserted(int *srst_asserted
)
109 *srst_asserted
=readSRST();
113 static int zy1000_power_dropout(int *dropout
)
115 *dropout
=readPowerDropout();
120 jtag_interface_t zy1000_interface
=
123 .execute_queue
= bitbang_execute_queue
,
124 .speed
= zy1000_speed
,
125 .register_commands
= zy1000_register_commands
,
129 .speed_div
= zy1000_speed_div
,
130 .power_dropout
= zy1000_power_dropout
,
131 .srst_asserted
= zy1000_srst_asserted
,
134 bitbang_interface_t zy1000_bitbang
=
137 .write
= zy1000_write
,
138 .reset
= zy1000_reset
143 static void zy1000_write(int tck
, int tms
, int tdi
)
148 int zy1000_read(void)
153 extern bool readSRST(void);
155 void zy1000_reset(int trst
, int srst
)
157 LOG_DEBUG("zy1000 trst=%d, srst=%d", trst
, srst
);
160 ZY1000_POKE(ZY1000_JTAG_BASE
+0x14, 0x00000001);
164 /* Danger!!! if clk!=0 when in
165 * idle in TAP_IDLE, reset halt on str912 will fail.
167 ZY1000_POKE(ZY1000_JTAG_BASE
+0x10, 0x00000001);
172 ZY1000_POKE(ZY1000_JTAG_BASE
+0x14, 0x00000002);
177 ZY1000_POKE(ZY1000_JTAG_BASE
+0x10, 0x00000002);
180 if (trst
||(srst
&&(jtag_reset_config
& RESET_SRST_PULLS_TRST
)))
183 /* we're now in the RESET state until trst is deasserted */
184 ZY1000_POKE(ZY1000_JTAG_BASE
+0x20, TAP_RESET
);
187 /* We'll get RCLK failure when we assert TRST, so clear any false positives here */
188 ZY1000_POKE(ZY1000_JTAG_BASE
+0x14, 0x400);
191 /* wait for srst to float back up */
195 for (i
=0; i
<1000; i
++)
197 // We don't want to sense our own reset, so we clear here.
198 // There is of course a timing hole where we could loose
209 LOG_USER("SRST didn't deassert after %dms", i
);
212 LOG_USER("SRST took %dms to deassert", i
);
217 int zy1000_speed(int speed
)
223 ZY1000_POKE(ZY1000_JTAG_BASE
+0x10, 0x100);
224 LOG_DEBUG("jtag_speed using RCLK");
228 if(speed
> 8190 || speed
< 2)
230 LOG_USER("valid ZY1000 jtag_speed=[8190,2]. Divisor is 64MHz / even values between 8190-2, i.e. min 7814Hz, max 32MHz");
231 return ERROR_INVALID_ARGUMENTS
;
234 LOG_USER("jtag_speed %d => JTAG clk=%f", speed
, 64.0/(float)speed
);
235 ZY1000_POKE(ZY1000_JTAG_BASE
+0x14, 0x100);
236 ZY1000_POKE(ZY1000_JTAG_BASE
+0x1c, speed
&~1);
241 static bool savePower
;
244 static void setPower(bool power
)
249 HAL_WRITE_UINT32(ZY1000_JTAG_BASE
+0x14, 0x8);
252 HAL_WRITE_UINT32(ZY1000_JTAG_BASE
+0x10, 0x8);
256 int handle_power_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
260 return ERROR_INVALID_ARGUMENTS
;
265 if (strcmp(args
[0], "on") == 0)
269 else if (strcmp(args
[0], "off") == 0)
274 command_print(cmd_ctx
, "arg is \"on\" or \"off\"");
275 return ERROR_INVALID_ARGUMENTS
;
279 command_print(cmd_ctx
, "Target power %s", savePower
? "on" : "off");
285 /* Give TELNET a way to find out what version this is */
286 static int jim_zy1000_version(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
288 if ((argc
< 1) || (argc
> 2))
291 const char *version_str
=NULL
;
295 version_str
=ZYLIN_OPENOCD_VERSION
;
298 const char *str
= Jim_GetString(argv
[1], NULL
);
299 if (strcmp("openocd", str
) == 0)
302 revision
= atol(ZYLIN_OPENOCD
+strlen("XRevision: "));
303 sprintf(buff
, "%d", revision
);
306 else if (strcmp("zy1000", str
) == 0)
308 version_str
=ZYLIN_VERSION
;
310 else if (strcmp("date", str
) == 0)
312 version_str
=ZYLIN_DATE
;
320 Jim_SetResult(interp
, Jim_NewStringObj(interp
, version_str
, -1));
327 zylinjtag_Jim_Command_powerstatus(Jim_Interp
*interp
,
329 Jim_Obj
* const *argv
)
333 Jim_WrongNumArgs(interp
, 1, argv
, "powerstatus");
338 ZY1000_PEEK(ZY1000_JTAG_BASE
+0x10, status
);
340 Jim_SetResult(interp
, Jim_NewIntObj(interp
, (status
&0x80)!=0));
345 int zy1000_register_commands(struct command_context_s
*cmd_ctx
)
347 register_command(cmd_ctx
, NULL
, "power", handle_power_command
, COMMAND_ANY
,
348 "power <on/off> - turn power switch to target on/off. No arguments - print status.");
350 Jim_CreateCommand(interp
, "zy1000_version", jim_zy1000_version
, NULL
, NULL
);
353 Jim_CreateCommand(interp
, "powerstatus", zylinjtag_Jim_Command_powerstatus
, NULL
, NULL
);
361 int zy1000_init(void)
363 LOG_USER("%s", ZYLIN_OPENOCD_VERSION
);
365 ZY1000_POKE(ZY1000_JTAG_BASE
+0x10, 0x30); // Turn on LED1 & LED2
367 setPower(true); // on by default
370 /* deassert resets. Important to avoid infinite loop waiting for SRST to deassert */
372 zy1000_speed(jtag_speed
);
374 bitbang_interface
= &zy1000_bitbang
;
379 int zy1000_quit(void)
388 int interface_jtag_execute_queue(void)
393 ZY1000_PEEK(ZY1000_JTAG_BASE
+0x10, empty
);
394 /* clear JTAG error register */
395 ZY1000_POKE(ZY1000_JTAG_BASE
+0x14, 0x400);
397 if ((empty
&0x400)!=0)
399 LOG_WARNING("RCLK timeout");
400 /* the error is informative only as we don't want to break the firmware if there
401 * is a false positive.
403 // return ERROR_FAIL;
412 static cyg_uint32
getShiftValue(void)
416 ZY1000_PEEK(ZY1000_JTAG_BASE
+0xc, value
);
417 VERBOSE(LOG_INFO("getShiftValue %08x", value
));
421 static cyg_uint32
getShiftValueFlip(void)
425 ZY1000_PEEK(ZY1000_JTAG_BASE
+0x18, value
);
426 VERBOSE(LOG_INFO("getShiftValue %08x (flipped)", value
));
432 static void shiftValueInnerFlip(const tap_state_t state
, const tap_state_t endState
, int repeat
, cyg_uint32 value
)
434 VERBOSE(LOG_INFO("shiftValueInner %s %s %d %08x (flipped)", tap_state_name(state
), tap_state_name(endState
), repeat
, value
));
438 ZY1000_POKE(ZY1000_JTAG_BASE
+0xc, value
);
439 ZY1000_POKE(ZY1000_JTAG_BASE
+0x8, (1<<15)|(repeat
<<8)|(a
<<4)|b
);
440 VERBOSE(getShiftValueFlip());
444 extern int jtag_check_value(u8
*captured
, void *priv
);
446 static void gotoEndState(void)
448 setCurrentState(cmd_queue_end_state
);
451 static __inline
void scanFields(int num_fields
, scan_field_t
*fields
, tap_state_t shiftState
, tap_state_t end_state
)
457 for (i
= 0; i
< num_fields
; i
++)
461 static u8
*in_buff
=NULL
; /* pointer to buffer for scanned data */
462 static int in_buff_size
=0;
466 // figure out where to store the input data
467 int num_bits
=fields
[i
].num_bits
;
468 if (fields
[i
].in_value
!=NULL
)
470 inBuffer
=fields
[i
].in_value
;
473 // here we shuffle N bits out/in
477 tap_state_t pause_state
;
480 pause_state
=(shiftState
==TAP_DRSHIFT
)?TAP_DRSHIFT
:TAP_IRSHIFT
;
484 /* we have more to shift out */
485 } else if (i
== num_fields
-1)
487 /* this was the last to shift out this time */
488 pause_state
=end_state
;
491 // we have (num_bits+7)/8 bytes of bits to toggle out.
492 // bits are pushed out LSB to MSB
494 if (fields
[i
].out_value
!=NULL
)
498 value
|=fields
[i
].out_value
[(j
+l
)/8]<<l
;
501 /* mask away unused bits for easier debugging */
502 value
&=~(((u32
)0xffffffff)<<k
);
504 shiftValueInner(shiftState
, pause_state
, k
, value
);
508 // data in, LSB to MSB
509 value
=getShiftValue();
510 // we're shifting in data to MSB, shift data to be aligned for returning the value
515 inBuffer
[(j
+l
)/8]=(value
>>l
)&0xff;
523 int interface_jtag_add_end_state(tap_state_t state
)
529 int interface_jtag_add_ir_scan(int num_fields
, scan_field_t
*fields
, tap_state_t state
)
534 jtag_tap_t
*tap
, *nextTap
;
535 for(tap
= jtag_NextEnabledTap(NULL
); tap
!= NULL
; tap
=nextTap
)
537 nextTap
=jtag_NextEnabledTap(tap
);
538 tap_state_t end_state
;
541 end_state
= cmd_queue_end_state
;
544 end_state
= TAP_IRSHIFT
;
549 scan_size
= tap
->ir_length
;
551 /* search the list */
552 for (j
=0; j
< num_fields
; j
++)
554 if (tap
== fields
[j
].tap
)
558 scanFields(1, fields
+j
, TAP_IRSHIFT
, end_state
);
559 /* update device information */
560 buf_cpy(fields
[j
].out_value
, tap
->cur_instr
, scan_size
);
569 /* if a device isn't listed, set it to BYPASS */
570 u8 ones
[]={0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
573 memset(&tmp
, 0, sizeof(tmp
));
574 tmp
.out_value
= ones
;
575 tmp
.num_bits
= scan_size
;
576 scanFields(1, &tmp
, TAP_IRSHIFT
, end_state
);
577 /* update device information */
578 buf_cpy(tmp
.out_value
, tap
->cur_instr
, scan_size
);
590 int interface_jtag_add_plain_ir_scan(int num_fields
, scan_field_t
*fields
, tap_state_t state
)
592 scanFields(num_fields
, fields
, TAP_IRSHIFT
, cmd_queue_end_state
);
597 /*extern jtag_command_t **jtag_get_last_command_p(void);*/
599 int interface_jtag_add_dr_scan(int num_fields
, scan_field_t
*fields
, tap_state_t state
)
603 jtag_tap_t
*tap
, *nextTap
;
604 for(tap
= jtag_NextEnabledTap(NULL
); tap
!= NULL
; tap
=nextTap
)
606 nextTap
=jtag_NextEnabledTap(tap
);
608 tap_state_t end_state
;
611 end_state
= cmd_queue_end_state
;
614 end_state
= TAP_DRSHIFT
;
617 for (j
=0; j
< num_fields
; j
++)
619 if (tap
== fields
[j
].tap
)
623 scanFields(1, fields
+j
, TAP_DRSHIFT
, end_state
);
629 /* program the scan field to 1 bit length, and ignore it's value */
631 tmp
.out_value
= NULL
;
634 scanFields(1, &tmp
, TAP_DRSHIFT
, end_state
);
643 int interface_jtag_add_plain_dr_scan(int num_fields
, scan_field_t
*fields
, tap_state_t state
)
645 scanFields(num_fields
, fields
, TAP_DRSHIFT
, cmd_queue_end_state
);
650 int interface_jtag_add_tlr()
652 setCurrentState(TAP_RESET
);
659 extern int jtag_nsrst_delay
;
660 extern int jtag_ntrst_delay
;
662 int interface_jtag_add_reset(int req_trst
, int req_srst
)
664 zy1000_reset(req_trst
, req_srst
);
668 static int zy1000_jtag_add_clocks(int num_cycles
, tap_state_t state
, tap_state_t clockstate
)
670 /* num_cycles can be 0 */
671 setCurrentState(clockstate
);
673 /* execute num_cycles, 32 at the time. */
675 for (i
=0; i
<num_cycles
; i
+=32)
679 if (num_cycles
-i
<num
)
683 shiftValueInner(clockstate
, clockstate
, num
, 0);
687 /* finish in end_state */
688 setCurrentState(state
);
690 tap_state_t t
=TAP_IDLE
;
691 /* test manual drive code on any target */
693 u8 tms_scan
= tap_get_tms_path(t
, state
);
695 for (i
= 0; i
< 7; i
++)
697 tms
= (tms_scan
>> i
) & 1;
699 ZY1000_POKE(ZY1000_JTAG_BASE
+0x28, tms
);
702 ZY1000_POKE(ZY1000_JTAG_BASE
+0x20, state
);
709 int interface_jtag_add_runtest(int num_cycles
, tap_state_t state
)
711 return zy1000_jtag_add_clocks(num_cycles
, state
, TAP_IDLE
);
714 int interface_jtag_add_clocks(int num_cycles
)
716 return zy1000_jtag_add_clocks(num_cycles
, cmd_queue_cur_state
, cmd_queue_end_state
);
719 int interface_jtag_add_sleep(u32 us
)
725 int interface_jtag_add_pathmove(int num_states
, tap_state_t
*path
)
730 /*wait for the fifo to be empty*/
735 tap_state_t cur_state
=cmd_queue_cur_state
;
739 if (tap_state_transition(cur_state
, false) == path
[state_count
])
743 else if (tap_state_transition(cur_state
, true) == path
[state_count
])
749 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(cur_state
), tap_state_name(path
[state_count
]));
754 ZY1000_POKE(ZY1000_JTAG_BASE
+0x28, tms
);
756 cur_state
= path
[state_count
];
762 ZY1000_POKE(ZY1000_JTAG_BASE
+0x20, cur_state
);
768 void embeddedice_write_dcc(jtag_tap_t
*tap
, int reg_addr
, u8
*buffer
, int little
, int count
)
770 // static int const reg_addr=0x5;
771 tap_state_t end_state
=cmd_queue_end_state
;
772 if (jtag_NextEnabledTap(jtag_NextEnabledTap(NULL
))==NULL
)
774 /* better performance via code duplication */
778 for (i
= 0; i
< count
; i
++)
780 shiftValueInner(TAP_DRSHIFT
, TAP_DRSHIFT
, 32, fast_target_buffer_get_u32(buffer
, 1));
781 shiftValueInner(TAP_DRSHIFT
, end_state
, 6, reg_addr
|(1<<5));
787 for (i
= 0; i
< count
; i
++)
789 shiftValueInner(TAP_DRSHIFT
, TAP_DRSHIFT
, 32, fast_target_buffer_get_u32(buffer
, 0));
790 shiftValueInner(TAP_DRSHIFT
, end_state
, 6, reg_addr
|(1<<5));
798 for (i
= 0; i
< count
; i
++)
800 embeddedice_write_reg_inner(tap
, reg_addr
, fast_target_buffer_get_u32(buffer
, little
));
806 int loadFile(const char *fileName
, void **data
, int *len
);
808 /* boolean parameter stored on config */
809 int boolParam(char *var
)
812 char *name
= alloc_printf("%s/%s", zylin_config_dir
, var
);
818 if (loadFile(name
, &data
, &len
) == ERROR_OK
)
822 result
= strncmp((char *) data
, "1", len
) == 0;
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)