unable to load custom firmware on raspberry pi 4.

Hi, I have downloaded the repo from Soafee meta-ewaol-machine and built the EWAOL image for raspberry pi baremetal. it generated few files in which one of them was ewaol-rpi4-rootfs.wic.bz2 file, so I tried it on a raspberry pi 4 hardware. There I was able to boot the ewaol but when I am trying to boot the same file in arm avh raspberry pi 4, I am unable to. I would appreciate it if you could suggest which files to use. Could you please guide me through the process?