serg_stetsuk

Hi. It's probably a bit late. On OrangePi Zero2 thereis i2c3 interface. Thus you must create your own DT overlay for i2c3 interface. See https://github.com/armbian/sunxi-DT-overlays/blob/master/sun50i-h6/sun50i-h6-i2c2.dts as an example. Let's say you create file sun50i-h6-i2c3.dts: /dts-v1/; /plugin/; / { compatible = "allwinner,sun50i-h6"; fragment@0 { target-path = "/aliases"; __overlay__ { i2c3 = "/soc/i2c@5002c00"; }; }; fragment@1 { target = <&i2c3>; __overlay__ { pinctrl-names = "default"; pinctrl-0 = <&i2c3_ph_pins>; status = "okay"; }; }; }; Compile this file into a binary device-tree overlay blob: dtc -I dts -O dtb -o sun50i-h6-i2c3.dtbo sun50i-h6-i2c3.dts Set permmissions and copy compiled file into /boot/dtb/allwinner/overlay: chmod +x ./sun50i-h6-i2c3.dtbo sudo cp ./sun50i-h6-i2c3.dtbo /boot/dtb/allwinner/overlay Then use the following in your armbianEnv.txt: overlay_prefix=sun50i-h6 overlay=i2c3

Hi All. I have nanopi-neo with exactly the same problem. What I've found is that link may be established if i turn off autonegotiation on my PC and force 10Half mode. However it is still not fully functional. I can seed Rx packets are growing as well as Tx packets. But there are no packets actually transmitted (checked with wireshark on PC). I can experiment. Can anyone suggest what should I try to troubleshoot?