From 924bf27596f31ab8e79fbb4de702be4a9fa12874 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=98yvind=20Harboe?= Date: Mon, 18 Jan 2010 21:54:58 +0100 Subject: [PATCH] zy1000: flush jtag buffer before changing speed MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It is conceivable that there could be commands in the queue when a speed change request comes in. Flush the hw queue before changing speed. Not observed, found by inspection. Signed-off-by: Øyvind Harboe --- src/jtag/zy1000/zy1000.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/jtag/zy1000/zy1000.c b/src/jtag/zy1000/zy1000.c index 9070f2e38..2c205b7a5 100644 --- a/src/jtag/zy1000/zy1000.c +++ b/src/jtag/zy1000/zy1000.c @@ -199,6 +199,9 @@ void zy1000_reset(int trst, int srst) int zy1000_speed(int speed) { + /* flush JTAG master FIFO before setting speed */ + waitIdle(); + if (speed == 0) { /*0 means RCLK*/