I played with UEFI as soon as I got my hands on the ROCK 5A and added initial support for it.
It didn’t require much work to be done before booting windows just like other 3588 boards
I would do some refactoring work on the pcie code in the uefi repo when I got free time soon
BTW, this board is a sample RADXA sent to my bf @strongtz, who mailed to me then. Huge thanks to RADXA!