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| author | Øyvind Harboe <oyvind.harboe@zylin.com> | 2010-01-18 21:54:58 +0100 |
|---|---|---|
| committer | Øyvind Harboe <oyvind.harboe@zylin.com> | 2010-01-19 10:58:48 +0100 |
| commit | 924bf27596f31ab8e79fbb4de702be4a9fa12874 (patch) | |
| tree | 5e1fe55fa5449fad44b9b0138230bb87a1f73cf3 /src | |
| parent | c795b0d8f143a52e0b7196c6e353b381ac04f8ae (diff) | |
| download | riscv-openocd-924bf27596f31ab8e79fbb4de702be4a9fa12874.zip riscv-openocd-924bf27596f31ab8e79fbb4de702be4a9fa12874.tar.gz riscv-openocd-924bf27596f31ab8e79fbb4de702be4a9fa12874.tar.bz2 | |
zy1000: flush jtag buffer before changing speed
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 <oyvind.harboe@zylin.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/jtag/zy1000/zy1000.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/jtag/zy1000/zy1000.c b/src/jtag/zy1000/zy1000.c index 9070f2e..2c205b7 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*/ |