I'm using an FSP file for coreboot porting.

According to Intel's "atom-e3800-fsp-integration-guide":

FspInit is calling "Bus and Devices Init" 

NotifyPhase is calling "Boot Device Init"

How can I know what initialization is required in each phase ?

FSP has documented return values. 

I assume FSP is run by coreboot.

Where can I inspect this return value ?

Thank you,

Zvika