just installed standard Debian 8.2 (jessie) / architecture i386 / kernel 3.16.0-4-686-pae on a APU.1D4
I configured the system as a dual band accesspoint equipped with R11e-2HPnD and R11e-5HnD.
works like a charm yet even with the standard power supply (24W) delivered with the APU bundle.
With one exception: probably the LEDs on both miniPCIe cards require a special driver extension which is no open source. so all LEDs stay dark. but no other issues yet. great!