Tryping to support Abit AV8

[Christoph Grenz]

Hello,

I'm currently trying to add support for the Abit AV8 mainboard.
This is also the reason I recently added a patch for integrated POST
displays and W83627HF and K8temp ACPI ASL code to Gerrit.

Now I'm stuck at one point: I could definitely identify the SuperIO
W83627HF and the northbridge AMD K8, but I have trouble with the
southbridge.
lspci shows a "VIA K8T800Pro" host bridge, but flashrom shows a "VIA
VT8237" chipset. 
So now I'm not sure how my devicetree has to look like.
Do I need to support K8T800p (should be similar to the supported K8T890)
and/or do I need the already supportet VT8237?

Outputs from flashrom, superiotool -d, lspci -vv and dmesg are attached.

Thanks,

Christoph

[Florian Zumbiehl]

Hi,
> Now I'm stuck at one point: I could definitely identify the SuperIO
> W83627HF and the northbridge AMD K8, but I have trouble with the
> southbridge.
> lspci shows a "VIA K8T800Pro" host bridge, but flashrom shows a "VIA
> VT8237" chipset. 
> So now I'm not sure how my devicetree has to look like.
> Do I need to support K8T800p (should be similar to the supported K8T890)
> and/or do I need the already supportet VT8237?

Most likely, you have both. The K8T800 (or similar) is essentially what
was left of the north bridge after the DRAM controller was moved into the
CPU. So, it connects the processor's HyperTransport to the AGP slot
and to the V-Link to the VT8237 (or similar) south bridge, which in turn
connects to all the rest of it (PCI, LPC, SMBus, ...)

The datasheets for both (as bad as they are) should make the general
architecture pretty clear.

Florian