Hi Mohammad, On Sat, Nov 16, 2019 at 10:53 AM Andreas Färber <afaerber@xxxxxxx> wrote: [...] > > + > > +/dts-v1/; > > + > > +#include "meson-gxbb-p201.dts" > > This is rather unusual, normally you would include the SoC's .dtsi, not > another board. you may even get another benefit from this: we don't know the Ethernet PHY setup on the P201 board (because nobody has an actual P201 board) so we don't use interrupts etc. however, since you do have a access to your KII Pro you can do better than P201 and define the Ethernet bits similar to Odroid-C2 for example: [0] if you board doesn't use a Realtek RTL8211F PHY then please also update the comment in the Ethmac node testing the PHY interrupt (which means less polling -> your CPU has more time to do other things) is easy: * cat /proc/interrupts * unplug and re-plug the Ethernet cable * cat /proc/interrupts again and check the Ethernet PHY interrupt (should be +2 compared to the first invocation) Martin [0] https://github.com/torvalds/linux/blob/f9717178b9be9477877d4c3776c61ff56d854ddf/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts#L122
