[LinuxBIOS] LinuxBIOS 'flashrom' on Geode LX + CS5536

ron minnich rminnich at gmail.com
Wed Dec 12 02:06:54 CET 2007

On Dec 11, 2007 2:42 PM, Martin-Éric Racine <q-funk at iki.fi> wrote:

> > In regards to gx_util usage, /dev/mem will not work for accesses to the very top of
> > memory. I believe it will not allow access to the top 64k bytes of memory. Which is
> > fine unless you want to modify the system BIOS.

I don't understand this comment. Can somebody clarify this a bit?

> >
> > In regards to the DIVIL_BALL settings.  FlashROM checks to see what device was
> > booted from (i.e. LPC, flash controller) before the flash device is identified. If the
> > boot device is the flash controller, FlashROM has to flip the IDE/flash switch before
> > any accesses to the flash device since the IDE interface is most likely where
> > FlashROM and any BIOS images exist.

I don't get this one either. What does the IDE/FLASH switch have to do
with BIOS?

I think there is more confusion going around, certainly in my case,
than I know what to do with :-)



More information about the coreboot mailing list