Re: [coreboot] SeaBIOS, serial output, grub, sgabios does not seem to load

[Martin Roth]

On 01/10/2015 07:53 AM, Kevin O'Connor wrote:
> On Thu, Dec 25, 2014 at 11:45:40AM +0300, Kuzmichev Viktor wrote:
> > Hello,
> >
> > I've been trying to boot grub installed on the hard drive using coreboot and
> > SeaBIOS as a payload. The motherboard I'm using is Intel Mohon Peak. Also, I
> > do not use VGA for output, only serial port. So, I included the sgabios into
> > my rom file. Here is its layout:
>
> It should have worked.  How did you build SeaBIOS, what SeaBIOS config
> did you use, and what changes have you made to SeaBIOS?
>
> -Kevin

As I recall, Mohon Peak uses 0x2f8 for the console serial port.  Did you 
set sgabios to output to 2f8 instead of 3f8 in sgabios.h?

sgabios.h:#define COM_BASE_ADDR           0x3f8

Martin