Hello
I'm quite new with armbian and Banana Pi, but have some experience with Raspberry PI.
I started with Banana PI M2 Zero and armbian because of current unavailibility of Raspberry PI
which is needed for some of my DIY pinball projects https://lisy.dev/
With a 5.15.48 Kernel Image I noted that the internal ethernet of M2 Zero is set to disabled, where with a 5.10.60 Kernel from the archive it works.
After some investigation I used the "sun8i-h2-plus-bananapi-m2-zero.dtb" overlay from the 5.10 Kernel with a 5.15.43 Kernel and was happy that eth0 was working again.
However as I think it is not advisable to mixing Kernel versions I wrote an user overlay which can activate eth0 on newer kernels (see code below)
questions to the experts:
- is my overlay code correct?
- is an user overlay the right method to activate eth0?
- if both answers to these questions is yes, is it worth to include that overlay to the armbian source and how to do that?
thanks for your help
/dts-v1/;
/plugin/;
/ {
model = "Banana Pi BPI-M2-Zero";
compatible = "sinovoip,bpi-m2-zero\0allwinner,sun8i-h2-plus";
/*
* enable onboard eth0 on Banana PI M2 zero
* which is disabled by default
* bontango 08.2022
*
* compile with
* dtc -I dts -O dtb -o m2-zero-eth0.dtbo m2-zero-eth0.dts
* move m2-zero-eth0.dtbo to /boot/overlay-user
* add line "user-overlays=m2-zero-eth0" to /boot/armbianEnv.txt
*/
fragment@0 {
target-path = "/aliases";
__overlay__ {
ethernet0 = "/soc/ethernet@1c30000";
};
};
fragment@1 {
target = <&emac>;
__overlay__ {
status = "okay";
phy-handle = <&int_mii_phy>;
phy-mode = "mii";
allwinner,leds-active-low;
};
};
};
