on the SIS motherboards, pci register values for bootup
are stored in extended CMOS, if you overwrite extended
cmos you write off a normal BIOS bootup
Brian
Steven James wrote:
> Greetings,
>
> I agree that non volatile is preferred. In the ms7308e, it seems that the CMOS is
>initialized from the regular flash BIOS whenever BIOS settings are stored. The only
>catch to another location is that the sis900 driver would need a a small patch to
>work properly.
>
> Newer 630 (such as 630et) look like they use yet another method that isn't dependant
>on the CMOS.
>
> G'day,
> sjames
>
> Quoting "Eric W. Biederman" <[EMAIL PROTECTED]>:
>
> > Eric Seppanen <[EMAIL PROTECTED]> writes:
> >
> > > On Mon, Dec 17, 2001 at 12:57:08PM -0700, Ronald G Minnich wrote:
> > > > this keeps coming up.
> > > >
> > > > so:
> > > > typedef unsigned char uc;
> > > >
> > > > struct cmos {
> > > > uc desired_image; // the FLASH/DoC image we want to boot
> > > > uc last_booted_image; // The last one to successfully boot
> > > > uc unused[7];
> > > > uc ethernet_mac[6]; // Ethernet mac address
> > > > uc unused2[242];
> > > > };
> > >
> > > Why would you want ethernet address stored there? The ethernet chip
> > I
> > > use requires a serial EEPROM to be attached to it for the storage of
> > > address plus other design-specific details. Don't other chips work
> > that
> > > way?
> >
> > It appears that this is one of the cost reductions in the SiS chipset.
> > I would prefer that this is stored in nonvaltile flash, than in the
> > CMOS though.... I'm aiming at allowing parameters to be stored in
> > other locations than just CMOS so from a table perspective I don't see
> > a problem.
> >
> > Having a good description of this would be useful though.
> >
> > Eric
> >
>
> ----------------------------steven james, director of research, linux labs
> LinuxBIOS Cluster Solutions 230 peachtree st nw ste 2705
> High-Speed Colocation, Hosting, atlanta.ga.us 30303
> Linux Hardware, Development & Support http://www.linuxlabs.com
> * Visit us at SuperComputing 2001, Booth 539 * office/fax 404.577.7747/3
> --------------------------------------------------------------------------
