Amlogic still don’t have any plan to apply the Linux license form S912 SoC, so you didn’t see LibreELEC support S912 devices. And different with VIM1, we target VIM2 more at Mirco ARM server marketing, that’s the reason we add WOL and SPIFlash/UEFI feature on VIM2.
BTW, anybody did ARM UEFI developing before? 