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-rw-r--r--src/jtag/jlink.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/jtag/jlink.c b/src/jtag/jlink.c
index b677535c..33dcd618 100644
--- a/src/jtag/jlink.c
+++ b/src/jtag/jlink.c
@@ -306,7 +306,8 @@ static int jlink_register_commands(struct command_context_s *cmd_ctx)
static int jlink_init(void)
{
int check_cnt;
-
+ int i;
+
jlink_jtag_handle = jlink_usb_open();
if (jlink_jtag_handle == 0)
@@ -341,6 +342,13 @@ static int jlink_init(void)
jlink_tap_init();
jlink_speed(jtag_speed);
+ /* v5/6 jlink seems to have an issue if the first tap move
+ * is not divisible by 8, so we send a TLR on first power up */
+ for (i = 0; i < 8; i++) {
+ jlink_tap_append_step(1, 0);
+ }
+ jlink_tap_execute();
+
return ERROR_OK;
}