[coreboot] RCA RM4100 Build Tutorial

[joe at smittys.pointclark.net]

Quoting ron minnich <rminnich at gmail.com>:

> Quick question. Have you tested that you absolutely have to do this:
> Edit src/mainboard/rca/rm4100/Config.lb and comment out these lines so
> it looks like this:
>
> #    chip drivers/pci/onboard		# Onboard VGA
>      device pci 2.0 on end		# VGA (Intel 82830 CGC)
> #      register "rom_address" = "0xfff00000"
> #    end
>
>
> i.e. did you just try all the other mods without doing this? I realize
> 2.0 is on  its way out in the next year, but having to modify this
> file says something is very, very wrong.
>
Not quite sure what you mean? If your not going to use VGA you should  
comment the rom stuff right? I tried something like:

if CONFIG_VIDEO_MB
    chip drivers/pci/onboard		# Onboard VGA
       device pci 2.0 on end		# VGA (Intel 82830 CGC)
          register "rom_address" = "0xfff00000"
    end
else
    device pci 2.0 on end		# VGA (Intel 82830 CGC)
end

But I kept getting build errors. Is it ok to leave the rom stuff with no VGA?

Thanks - Joe