I have created an Armbian board config: nanopi-r2s-plus.csc, and a patch to the in kernel device tree rk3328-nanopi-r2s-plus.dts, to fix the WAN port. This avoids name collisions with both FriendlyElec and Linux kernel. The new patch is rk3328-nanopi-r2s-plus-a1.dts and it includes rk3328-nanopi-r2s-plus.dts, provided by the kernel. Working for me with the 6.12 kernel.
What are the prospects for getting this into armbian/build? Should I just submit a pull request?