Porting guide ar71xx to ath79?

Hey guys, I am seeing these errors in dmesg. No idea if they're critical. Running on a WNDR3700 v1. Latest master.

root@OpenWrt:~# dmesg -l err
[    0.601917] ar7100-usb-phy 18030000.usb-phy: phy reset is missing
[    0.735469] rtl8366s rtl8366s: cannot find mdio node phandle