Adding genesys2 FPGA support

[suyogchaudhary]

Hello ,
i am using open source risc-v server based on genesys2 FPGA board .previously lowRISC nexys4DDR is supported on coreboot.So how can we add new FPGA board in oreboot or coreboot???
Initially we used lowRISC coreboot port as reference but only blank screen is appearing

NEED HELP IN THAT CASE!!!!!