Hi, On Tue, 10 Jan 2023 at 05:42, Loic Poulain <loic.poul...@linaro.org> wrote: > > The u-boot console may show some corrupted characters when > printing in board_init() due to reset of the UART (probe) > before the TX FIFO has been completely drained. > > To fix this issue, and in case UART is still running, we now > try to flush the FIFO before proceding to UART reinitialization. > For this we're waiting for Transmitter Complete bit, indicating > that the FIFO and the shift register are empty. > > flushing has a 4ms timeout guard, which is normally more than > enough to consume the FIFO @ low baudrate (9600bps). > > Signed-off-by: Loic Poulain <loic.poul...@linaro.org> > --- > v2: Add this commit to the series > > drivers/serial/serial_mxc.c | 24 +++++++++++++++++++++++- > 1 file changed, 23 insertions(+), 1 deletion(-) >
Can you just use serial_flush()? It is generic and should work with any device. Regards, Simon
