[LinuxBIOS] Support for VIA K8T890/VT8237

Corey Osgood corey_osgood at verizon.net
Sun Mar 25 06:16:41 CEST 2007

Rudolf Marek wrote:
> Hello,
> Anyone is working on VIA K8T890/VT8237? + K8. I have in plan to start in near
> future. I'm missing the datasheet for the K8T890. Do you think I will need it?
> Maybe just writing the PCI registers to match the BIOS values would be enough?
> My board is Asus A8V-E SE. My BIOS ROM is 512KB. (PMC 49... perhaps it should
> work with flashrom).

For now, you should be fine without the K8T890 datasheet, as it's *just*
the PCI-Express controller. Your first problem will be supporting the
via 8237 southbridge, which, if you have all those docs, should be
fairly easy. After that, you'll have to work out DRAM initialization,
which is done by the K8 (already supported in linuxbios). Once you've
done all that, PCI-Express will be your next step, but I don't know much
about that (I don't own any PCI-E stuff yet).

I'm amazed that noone has gone and gotten vt8237 up and running yet, as
it seems that it's used on a lot of motherboards these days, from the
latest via epia-m's to cheaper C7, K7 and K8 boards.


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