#endif
static const Jim_Nvp nvp_jtag_tap_event[] = {
- { .value = JTAG_TAP_EVENT_POST_RESET, .name = "post-reset" },
+ { .value = JTAG_TRST_ASSERTED, .name = "post-reset" },
+ { .value = JTAG_TAP_EVENT_SETUP, .name = "setup" },
{ .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" },
{ .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" },
for (jteap = tap->event_action; jteap != NULL; jteap = jteap->next) {
if (jteap->event == e) {
- LOG_DEBUG("JTAG tap: %s event: %d (%s) action: %s\n",
+ LOG_DEBUG("JTAG tap: %s event: %d (%s)\n\taction: %s",
tap->dotted_name,
e,
Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
case JTAG_TAP_EVENT_ENABLE:
case JTAG_TAP_EVENT_DISABLE:
/* NOTE: we currently assume the handlers
- * can't fail. That presumes later code
- * will be verifying the scan chains ...
+ * can't fail. Right here is where we should
+ * really be verifying the scan chains ...
*/
tap->enabled = (e == JTAG_TAP_EVENT_ENABLE);
+ LOG_INFO("JTAG tap: %s %s", tap->dotted_name,
+ tap->enabled ? "enabled" : "disabled");
break;
default:
break;
enum {
JTAG_CMD_INTERFACE,
+ JTAG_CMD_INIT,
JTAG_CMD_INIT_RESET,
JTAG_CMD_NEWTAP,
JTAG_CMD_TAPENABLE,
const Jim_Nvp jtag_cmds[] = {
{ .name = "interface" , .value = JTAG_CMD_INTERFACE },
+ { .name = "arp_init" , .value = JTAG_CMD_INIT },
{ .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
{ .name = "newtap" , .value = JTAG_CMD_NEWTAP },
{ .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
}
Jim_SetResultString(goi.interp, jtag_interface->name, -1);
return JIM_OK;
+ case JTAG_CMD_INIT:
+ if (goi.argc != 0) {
+ Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
+ return JIM_ERR;
+ }
+ e = jtag_init_inner(context);
+ if (e != ERROR_OK) {
+ Jim_SetResult_sprintf(goi.interp, "error: %d", e);
+ return JIM_ERR;
+ }
+ return JIM_OK;
case JTAG_CMD_INIT_RESET:
if (goi.argc != 0) {
Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
}
-void jtag_notify_reset(void)
+void jtag_notify_event(enum jtag_event event)
{
jtag_tap_t *tap;
+
for (tap = jtag_all_taps(); tap; tap = tap->next_tap)
- {
- jtag_tap_handle_event(tap, JTAG_TAP_EVENT_POST_RESET);
- }
+ jtag_tap_handle_event(tap, event);
}
COMMAND_CONFIG, "(DEPRECATED) jtag_device <ir_length> <ir_expected> <ir_mask>");
register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
COMMAND_ANY,
- "[none/trst_only/srst_only/trst_and_srst] [srst_pulls_trst/trst_pulls_srst] [combined/separate] [trst_push_pull/trst_open_drain] [srst_push_pull/srst_open_drain]");
+ "reset_config "
+ "[none|trst_only|srst_only|trst_and_srst] "
+ "[srst_pulls_trst|trst_pulls_srst|combined|separate] "
+ "[srst_gates_jtag|srst_nogate] "
+ "[trst_push_pull|trst_open_drain] "
+ "[srst_push_pull|srst_open_drain]");
register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
int new_cfg = 0;
int mask = 0;
- if (argc < 1)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
/* Original versions cared about the order of these tokens:
* reset_config signals [combination [trst_type [srst_type]]]
* They also clobbered the previous configuration even on error.
int tmp = 0;
int m;
- m = RESET_SRST_GATES_JTAG;
- tmp = 0;
+ /* gating */
+ m = RESET_SRST_NO_GATING;
if (strcmp(*args, "srst_gates_jtag") == 0)
- {
- tmp = RESET_SRST_GATES_JTAG;
- goto next;
+ /* default: don't use JTAG while SRST asserted */;
+ else if (strcmp(*args, "srst_nogate") == 0)
+ tmp = RESET_SRST_NO_GATING;
+ else
+ m = 0;
+ if (mask & m) {
+ LOG_ERROR("extra reset_config %s spec (%s)",
+ "gating", *args);
+ return ERROR_INVALID_ARGUMENTS;
}
+ if (m)
+ goto next;
/* signals */
m = RESET_HAS_TRST | RESET_HAS_SRST;
}
/* clear previous values of those bits, save new values */
- enum reset_types old_cfg = jtag_get_reset_config();
- old_cfg &= ~mask;
- new_cfg |= old_cfg;
- jtag_set_reset_config(new_cfg);
+ if (mask) {
+ int old_cfg = jtag_get_reset_config();
+
+ old_cfg &= ~mask;
+ new_cfg |= old_cfg;
+ jtag_set_reset_config(new_cfg);
+ } else
+ new_cfg = jtag_get_reset_config();
+
+
+ /*
+ * Display the (now-)current reset mode
+ */
+ char *modes[5];
+
+ /* minimal JTAG has neither SRST nor TRST (so that's the default) */
+ switch (new_cfg & (RESET_HAS_TRST | RESET_HAS_SRST)) {
+ case RESET_HAS_SRST:
+ modes[0] = "srst_only";
+ break;
+ case RESET_HAS_TRST:
+ modes[0] = "trst_only";
+ break;
+ case RESET_TRST_AND_SRST:
+ modes[0] = "trst_and_srst";
+ break;
+ default:
+ modes[0] = "none";
+ break;
+ }
+
+ /* normally SRST and TRST are decoupled; but bugs happen ... */
+ switch (new_cfg & (RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST)) {
+ case RESET_SRST_PULLS_TRST:
+ modes[1] = "srst_pulls_trst";
+ break;
+ case RESET_TRST_PULLS_SRST:
+ modes[1] = "trst_pulls_srst";
+ break;
+ case RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST:
+ modes[1] = "combined";
+ break;
+ default:
+ modes[1] = "separate";
+ break;
+ }
+
+ /* TRST-less connectors include Altera, Xilinx, and minimal JTAG */
+ if (new_cfg & RESET_HAS_TRST) {
+ if (new_cfg & RESET_TRST_OPEN_DRAIN)
+ modes[3] = " trst_open_drain";
+ else
+ modes[3] = " trst_push_pull";
+ } else
+ modes[3] = "";
+
+ /* SRST-less connectors include TI-14, Xilinx, and minimal JTAG */
+ if (new_cfg & RESET_HAS_SRST) {
+ if (new_cfg & RESET_SRST_NO_GATING)
+ modes[2] = " srst_nogate";
+ else
+ modes[2] = " srst_gates_jtag";
+
+ if (new_cfg & RESET_SRST_PUSH_PULL)
+ modes[4] = " srst_push_pull";
+ else
+ modes[4] = " srst_open_drain";
+ } else {
+ modes[2] = "";
+ modes[4] = "";
+ }
+
+ command_print(cmd_ctx, "%s %s%s%s%s",
+ modes[0], modes[1],
+ modes[2], modes[3], modes[4]);
return ERROR_OK;
}
Code Review / openocd.git / blobdiff