[coreboot] legacy bios support and coreboot

[Kevin O'Connor]

On Wed, May 07, 2008 at 08:25:32PM -0400, Kevin O'Connor wrote:
> On Wed, May 07, 2008 at 10:50:11AM +0800, aaron lwe wrote:
> > I've written a loader for coreboot-v2 to load legacybios, it works
> > well when used with qemu, I've booted freebsd with it. But on real
> > hardware, via epia-cn, it hangs with a blank screen, the debug port
> > value is 0x31, I'll take some time to see what's going wrong.
> 
> Changing the legacybios code to forward debug output to a serial port
> will definitely help here.

FYI, the latest legacybios git repo has the serial debug option.  To
enable, modify src/config.h and turn on CONFIG_DEBUG_SERIAL.  I've
only tested this with qemu.

-Kevin