Going along with AMD’s work on AMD openSIL for open-sourcing the CPU silicon initialization code to ultimately replace AGESA in future hardware platforms, the initial EPYC “Genoa” code for Coreboot has been upstreamed along with the Onyx motherboard target…

Source: Phoronix – Initial AMD EPYC Genoa Support Added To Coreboot, New Onyx Motherboard Target