Necessary information to gather in order to start porting for new candidate platforms (This time a DFI-CA331-NR).

[persmule]

Hi all,

Recently I have obtained a desktop/industrial motherboard DFI-CA331-NR
(Manual http://www.dfi.com/Upload/manual/ACP/CA331-NR-P-Manual.pdf),
which uses Intel GM45 and ICH9M-E as master bridges, and DDR3 ram
modules, much like lenovo x200. Other than those, it uses a Winbond
W83627UHG (which is already supported by coreboot) as superio, and has a
pci-e 1 x16 socket export from the northbridge, a pci-e 1 x4 socket
export from the southbridge, as well as a Realtek NIC attached, 2 32/33
pci socket export from the southbridge, with a IT8213 IDE Controller
attached, all of which can be seen in the manual mentioned above, and
some further reports obtained via a live system are attached.

It has a socketed, easily removed 4MiB soic-8 spi flash chip (originally
a SST25VF032B) to store its firmware, making brick-rescue easy, and all
region is rw for CPU, making it possible to flash it internally. I am
even curious whether its ME is active, since I can read the whole
content of the flash internally with flashrom(1).

I want to port coreboot to this motherboard, and I have read /Supporting
a new board with the same cpu family, chipset but different superIO
https://www.coreboot.org/Developer_Manual#Supporting_a_new_board_with_the_same_cpu_family.2C_chipset_but_different_superIO/.
What further information should be gathered before I start porting?

Best Regard.

Persmule