This is an automated email from Gerrit.
Tim Newsome (t...@sifive.com) just uploaded a new patch set to Gerrit, which
you can find at http://openocd.zylin.com/4451
-- gerrit
commit 8eafeec62f78c76fbffec55b3bdc2ca68c44b766
Author: Tim Newsome <t...@sifive.com>
Date: Tue Mar 6 13:13:35 2018 -0800
Add complete JTAG debug logging.
This is only enabled when OpenOCD is configured with
--enable-verbose-jtag-io.
Sample output:
Debug: 646 18 core.c:847 default_interface_jtag_execute_queue(): JTAG IR
SCAN to RUN/IDLE
Debug: 647 18 core.c:852 default_interface_jtag_execute_queue(): 5b out:
11
Debug: 648 18 core.c:847 default_interface_jtag_execute_queue(): JTAG DR
SCAN to RUN/IDLE
Debug: 649 18 core.c:852 default_interface_jtag_execute_queue(): 40b out:
4400000001
Debug: 650 18 core.c:857 default_interface_jtag_execute_queue(): 40b in:
4400000000
Signed-off-by: Tim Newsome <t...@sifive.com>
Change-Id: I014e9e3a77755413b36edfcede2ab8f6aa08061b
diff --git a/src/jtag/core.c b/src/jtag/core.c
index 8c79eb2..71a731d 100644
--- a/src/jtag/core.c
+++ b/src/jtag/core.c
@@ -836,7 +836,68 @@ int default_interface_jtag_execute_queue(void)
return ERROR_FAIL;
}
- return jtag->execute_queue();
+ int result = jtag->execute_queue();
+
+ struct jtag_command *cmd = jtag_command_queue;
+ while (debug_level >= LOG_LVL_DEBUG && cmd) {
+ switch (cmd->type) {
+ case JTAG_SCAN:
+ DEBUG_JTAG_IO("JTAG %s SCAN to %s",
+ cmd->cmd.scan->ir_scan ? "IR" :
"DR",
+
tap_state_name(cmd->cmd.scan->end_state));
+ for (int i = 0; i < cmd->cmd.scan->num_fields;
i++) {
+ struct scan_field *field =
cmd->cmd.scan->fields + i;
+ if (field->out_value) {
+ char *str =
buf_to_str(field->out_value, field->num_bits, 16);
+ DEBUG_JTAG_IO(" %db out: %s",
field->num_bits, str);
+ free(str);
+ }
+ if (field->in_value) {
+ char *str =
buf_to_str(field->in_value, field->num_bits, 16);
+ DEBUG_JTAG_IO(" %db in: %s",
field->num_bits, str);
+ free(str);
+ }
+ }
+ break;
+ case JTAG_TLR_RESET:
+ DEBUG_JTAG_IO("JTAG TLR RESET to %s",
+
tap_state_name(cmd->cmd.statemove->end_state));
+ break;
+ case JTAG_RUNTEST:
+ DEBUG_JTAG_IO("JTAG RUNTEST %d cycles to %s",
+ cmd->cmd.runtest->num_cycles,
+
tap_state_name(cmd->cmd.runtest->end_state));
+ break;
+ case JTAG_RESET:
+ {
+ const char *reset_str[3] = {
+ "leave", "deassert", "assert"
+ };
+ DEBUG_JTAG_IO("JTAG RESET %s TRST, %s
SRST",
+
reset_str[cmd->cmd.reset->trst + 1],
+
reset_str[cmd->cmd.reset->srst + 1]);
+ }
+ break;
+ case JTAG_PATHMOVE:
+ DEBUG_JTAG_IO("JTAG PATHMOVE (TODO)");
+ break;
+ case JTAG_SLEEP:
+ DEBUG_JTAG_IO("JTAG SLEEP (TODO)");
+ break;
+ case JTAG_STABLECLOCKS:
+ DEBUG_JTAG_IO("JTAG STABLECLOCKS (TODO)");
+ break;
+ case JTAG_TMS:
+ DEBUG_JTAG_IO("JTAG STABLECLOCKS (TODO)");
+ break;
+ default:
+ LOG_ERROR("Unknown JTAG command: %d",
cmd->type);
+ break;
+ }
+ cmd = cmd->next;
+ }
+
+ return result;
}
void jtag_execute_queue_noclear(void)
@@ -1107,7 +1168,8 @@ static int jtag_examine_chain(void)
if ((idcode & 1) == 0) {
/* Zero for LSB indicates a device in bypass */
- LOG_INFO("TAP %s does not have IDCODE",
tap->dotted_name);
+ LOG_INFO("TAP %s does not have valid IDCODE
(idcode=0x%x)",
+ tap->dotted_name, idcode);
tap->hasidcode = false;
tap->idcode = 0;
--
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