On 10/29/2015 10:46 PM, Masahiro Yamada wrote:

This reuses the code of drivers/tty/serial/8250/8250_early.c except

   - Overwrite device->port.iotype and device->port.regshift for
     UPIO_MEM32 because of_setup_earlycon() has set them for UPIO_MEM.

   - Set device->baud to zero to prevent early8250_setup() from
     initializing the divisor register because port->uartclk does not
     match the frequency expected by this hardware.

Reviewed-by: Peter Hurley <redacted>