Does this board boot Linux via a device tree, or have hardware discovery?
How about UEFI vs arm-specific bootloaders?
I tried arm32 Linux a few years back, and the largest hindrance at the time was the device trees and non-UEFI boot process. Given up on exploring the platform further (except maybe for SBC like raspberry pi) until that situation improves.
The CIX CP8180 uses UEFI (it is intended to boot Windows which requires it) but the boot flow can, I believe, use either ACPI or device trees, based on a boot setting. The ACPI boot flow has the advantage that any normal Linux distro should work, while the device tree variant I think has more hardware enablement.
The upstream story due to this is kind of a mixed bag, though. I think they also still use out-of-tree NPU drivers, etc. Device trees and other updates are still flowing upstream. I think the next Mesa release will support the Immortalis GPU series though, so that'll hopefully polish off a big remaining problem with ordinary distros.
How about UEFI vs arm-specific bootloaders?
I tried arm32 Linux a few years back, and the largest hindrance at the time was the device trees and non-UEFI boot process. Given up on exploring the platform further (except maybe for SBC like raspberry pi) until that situation improves.