I'm able to boot into linux with one 2GB module in "A2" slot!
Major issue: no VGA PCI device enabled - no clue what do I need to do, most likely PlatformGnbPcie.c is wrong but I dont know how to fix it.
I think I succeed to enable the GPP on FCH and now I see soldered realtek chip. This was done via #define DFLT_FCH_GPP_LINK_CONFIG.
XHCI is disabled, I need to enable firmware load.
Is anyone buying this board too?