[Adding Johannes and Tim] On Tue, Jan 10, 2023 at 4:24 PM 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 proceeding 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> > Tested-by: Lothar Waßmann <l...@karo-electronics.de> > --- > v2: Add this commit to the series > v3: Fix typo & reordering commits for good bisectability
Reviewed-by: Fabio Estevam <feste...@denx.de> Thanks
