Porting coreboot to another Intel's bay-trail

[Zvi Vered]

Hello,

I created a new mainboard based on "Bayley Bay FSP-based CRB"
It seems that (at least) the following files are mandatory for build:

cmos.layout
devicetree.cb
romstage.c

Am I right ?
If yes - what info required to write those files ?
Can I use coreboot default files instead ?

Honestly - I thought that FSP binary configuration is all I have to do.
And few changes in menuconfig (e.g ROM size).

Thank you,
Zvika