[LinuxBIOS] VGA support
Steve Magnani
steve at digidescorp.com
Sat Aug 27 15:18:43 CEST 2005
Hi Steve -
> what are the Options.lb changes to run without a FALLBACK
> or without CMOS Options.
I think ideally, to run without fallback, you'd just set
HAVE_FALLBACK_BOOT = 0 and change your target Config.lb to not build the
fallback image. But I don't think most config files are set up to work
that way. I set FALLBACK_SIZE and HAVE_FALLBACK_BOOT to 0, and use a
mainboard Config.lb file that looks like this:
##
## Build our reset vector (This is where linuxBIOS is entered)
##
if HAVE_FALLBACK_BOOT
if USE_FALLBACK_IMAGE
mainboardinit cpu/x86/16bit/reset16.inc
ldscript /cpu/x86/16bit/reset16.lds
else
mainboardinit cpu/x86/32bit/reset32.inc
ldscript /cpu/x86/32bit/reset32.lds
end
else
mainboardinit cpu/x86/16bit/reset16.inc
ldscript /cpu/x86/16bit/reset16.lds
end
> Are there ways to tell how much free Flash space you have?
I usually look at the linuxbios.rom file with a hex editor to see if
there's a large chunk of "FF"s. If so I try reducing ROM_SIZE and/or
ROM_IMAGE_SIZE, depending on where the FFs are.
Hope this helps.
------------------------------------------------------------------------
Steven J. Magnani "I claim this network for MARS!
www.digidescorp.com Earthling, return my space modulator!"
#include <standard.disclaimer>
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