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nds32: Add jtag scan_chain command 

Create new command to refresh idcode list during runtime
and update Tap idcode.

Change-Id: Ie889a39a6f57cea207b2b9c9e42c51c97cfe4d8e
Signed-off-by: Hellosun Wu <wujiheng.tw@gmail.com>
Reviewed-on: http://openocd.zylin.com/4133
Tested-by: jenkins
Reviewed-by: Hsiangkai Wang <hsiangkai@gmail.com>
Reviewed-by: penny chen <penny6610231@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This commit is contained in:
Hellosun Wu 2017-05-12 14:37:21 +08:00 committed by Tomas Vanek
parent 396ea7c8dd
commit 69325f6970
3 changed files with 85 additions and 0 deletions
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24
src/jtag/aice/aice_interface.c
View File

@ -239,6 +239,30 @@ static int aice_khz(int khz, int *jtag_speed)
return ERROR_OK;
}
int aice_scan_jtag_chain(void)
{
LOG_DEBUG("=== %s ===", __func__);
uint8_t num_of_idcode = 0;
struct target *target;
int res = aice_port->api->idcode(aice_target_id_codes, &num_of_idcode);
if (res != ERROR_OK) {
LOG_ERROR("<-- TARGET ERROR! Failed to identify AndesCore "
"JTAG Manufacture ID in the JTAG scan chain. "
"Failed to access EDM registers. -->");
return res;
}
for (uint32_t i = 0; i < num_of_idcode; i++)
LOG_DEBUG("id_codes[%d] = 0x%x", i, aice_target_id_codes[i]);
/* Update tap idcode */
for (target = all_targets; target; target = target->next)
target->tap->idcode = aice_target_id_codes[target->tap->abs_chain_position];
return ERROR_OK;
}
/***************************************************************************/
/* Command handlers */
COMMAND_HANDLER(aice_handle_aice_info_command)

1
src/jtag/aice/aice_interface.h
View File

@ -31,5 +31,6 @@ struct aice_interface_param_s {
};
int aice_init_targets(void);
int aice_scan_jtag_chain(void);
#endif /* OPENOCD_JTAG_AICE_AICE_INTERFACE_H */

60
src/jtag/aice/aice_transport.c
View File

@ -158,6 +158,59 @@ COMMAND_HANDLER(handle_aice_init_command)
return jtag_init(CMD_CTX);
}
COMMAND_HANDLER(handle_scan_chain_command)
{
struct jtag_tap *tap;
char expected_id[12];
aice_scan_jtag_chain();
tap = jtag_all_taps();
command_print(CMD_CTX,
" TapName Enabled IdCode Expected IrLen IrCap IrMask");
command_print(CMD_CTX,
"-- ------------------- -------- ---------- ---------- ----- ----- ------");
while (tap) {
uint32_t expected, expected_mask, ii;
snprintf(expected_id, sizeof expected_id, "0x%08x",
(unsigned)((tap->expected_ids_cnt > 0)
? tap->expected_ids[0]
: 0));
if (tap->ignore_version)
expected_id[2] = '*';
expected = buf_get_u32(tap->expected, 0, tap->ir_length);
expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
command_print(CMD_CTX,
"%2d %-18s %c 0x%08x %s %5d 0x%02x 0x%02x",
tap->abs_chain_position,
tap->dotted_name,
tap->enabled ? 'Y' : 'n',
(unsigned int)(tap->idcode),
expected_id,
(unsigned int)(tap->ir_length),
(unsigned int)(expected),
(unsigned int)(expected_mask));
for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
snprintf(expected_id, sizeof expected_id, "0x%08x",
(unsigned) tap->expected_ids[ii]);
if (tap->ignore_version)
expected_id[2] = '*';
command_print(CMD_CTX,
" %s",
expected_id);
}
tap = tap->next_tap;
}
return ERROR_OK;
}
static int jim_aice_arp_init(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
{
LOG_DEBUG("No implement: jim_aice_arp_init");
@ -307,6 +360,13 @@ aice_transport_jtag_subcommand_handlers[] = {
.jim_handler = jim_aice_names,
.help = "Returns list of all JTAG tap names.",
},
{
.name = "scan_chain",
.handler = handle_scan_chain_command,
.mode = COMMAND_ANY,
.help = "print current scan chain configuration",
.usage = ""
},
COMMAND_REGISTRATION_DONE
};