An upcoming change to QEMU's ESCC device reset mechanism exposed a bug that OpenBIOS's ESCC driver doesn't actually reset the port before attempting to configure it. Whilst this has no effect for now, once the QEMU ESCC changes have been merged (which implement the reset as documented in the datasheet), this port reset must be sent so that the registers are set to their default values after power-on.
Signed-off-by: Mark Cave-Ayland mark.cave-ayland@ilande.co.uk
Mark Cave-Ayland (2): escc: add port index to uart_init_line() escc: send software reset command before configuring the port
drivers/escc.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)