[coreboot] [SeaBIOS] serial console : no keystroke

[Kevin O'Connor]

On Thu, Aug 13, 2015 at 03:47:26PM +0200, Maxime de Roucy wrote:
> Hello,
> 
> I am trying vanilla coreboot/SeaBios on an pc-engines apu1d4 :
> http://www.pcengines.ch/apu1d4.htm
> 
> The board natively use a modified version of coreboot, the sources are
> available at http://www.pcengines.ch/howto.php#CoreBoot (coreboot_14090
> 8.tar.gz)
> 
> I use a usb-SR232 adapter to connect on the board.
> I use minicom and picocom. Both are working fine.
> 
> BUT
> 
> When I use coreboot vanilla (master) with SeaBios vanilla (master, I
> also tried 1.7.5), when I get to "Press ESC for boot menu" I can't send
> keystroke to SeaBios through the serial console.
> I have to plug an USB keyboard and press ESC on it.

Mainline seabios does not directly support keyboard over serial.  To
get that functionality, one uses sgabios with seabios - see the
description at:

  http://www.coreboot.org/SeaBIOS#Adding_sgabios_support

-Kevin