From: Paul Fertser <fercerpav@gmail.com>
Date: Thu, 12 Jun 2014 14:56:32 +0000 (+0400)
Subject: jtag/drivers/jlink: better diagnostics for RCLK problems
X-Git-Tag: v0.9.0-rc1~370
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=8ae66d0d6f97485be980744ee75ee971eab8a533;p=openocd

jtag/drivers/jlink: better diagnostics for RCLK problems

The JLink protocol description doesn't really specify it for
JTAG-level commands but the real life evidence is that 0x01 error code
means "Adaptive clocking timeout" as it does for e.g. WRITE_MEM_ARM79.

Change-Id: I4e3b568742814271919f92d202713968c8fcccfb
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2169
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
---

diff --git a/src/jtag/drivers/jlink.c b/src/jtag/drivers/jlink.c
index 029db38c..632dcee4 100644
--- a/src/jtag/drivers/jlink.c
+++ b/src/jtag/drivers/jlink.c
@@ -1430,7 +1430,8 @@ static int jlink_tap_execute(void)
 
 	result = use_jtag3 ? usb_in_buffer[byte_length] : 0;
 	if (result != 0) {
-		LOG_ERROR("jlink_tap_execute failed, result %d", result);
+		LOG_ERROR("jlink_tap_execute failed, result %d (%s)", result,
+			  result == 1 ? "adaptive clocking timeout" : "unknown");
 		jlink_tap_init();
 		return ERROR_JTAG_QUEUE_FAILED;
 	}