[coreboot] Need help with MSI MS-7260 (K9N Neo) / MSI MS-7250 (K9N SLI)

Hi,

I'd like to run coreboot on my MSI MS-7250 (K9N SLI) mainboard. This 
board is apparently quite similar to the MSI MS-7260 (K9N Neo) which is 
already supported:

http://www.coreboot.org/Board:msi/ms7260

This is what my board looks like, though mine is a version 2.2:

http://www.msi.com/product/mb/K9N_SLI.html#hero-specification

I tried booting the board with a coreboot ROM built for the MS-7260 
(and an "AMD Athlon(tm) 64 X2 Dual Core Processor 5000+" CPU, 4 1GB DIMM 
sticks, and a Radeon 7000 graphics card). That didn't work, but I've 
attached the log. I've also attached the outputs from lspci, 
superiotool, and flashrom, for good measure.

What needs to be done and what's a good place to start?

Christian