[LinuxBIOS] Ethernet problem with GeodeLX (db800) with running lxbios

Peter Stuge peter at stuge.se
Thu Sep 20 17:18:58 CEST 2007

On Thu, Sep 20, 2007 at 05:06:58PM +0200, Steffen D. wrote:
> > What's the problem again?
> >
> > Is this NIC also behind that PCI bridge?
> The throughput is the probleme because it is to little - i allways
> can test it with the orig. bios and there it works like 1gbit
> should work.

Ah, gig even. Ok.

> The problem is that it works with the normal bios and working very
> very badly with the linux bios.

It's interesting that it works at all.

> The ethernet is not behind a pci bridge.


Either work from the driver, add copious amounts of debugging info to
it so you can see how the driver works with the factory BIOS, then
use same source with LB to see what goes different with LB and
possibly get a hint from the NIC datasheet what the problem actually

Or you can work from PCI config space registers - investigate each
bit that differs between factory BIOS and LB to rule them out one at
a time until you find the one that is causing the problems.


More information about the coreboot mailing list