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  1. In my opinion this is a bug, because using older images (I switched from Armbian Buster with kernel 4.19.62) worked without any modification of the device tree and activation of the CAN overlay normally could easily be done with armbian-config. Regards, Rainer
  2. Hi, unfortunatelly I am not familiar with the procedures and tools to do this. Regards, Rainer
  3. Hello, for my BananaPi I recently downloaded "Armbian_21.05.1_Bananapi_buster_current_5.10.34.img" and did not get the on-board CAN controller working with this image. I found out that in sun7i-a20-bananapi.dtb (uses sun7i-a20.dtsi) the group name for the CAN pins PH20 and PH21 has changed from "can0_pins_a" to "can_ph_pins" but in the sun7i-a20-can overlay this change had not been done accordingly, and the DT merging failed. So changing "sun7i-a20-can.dts" to: /dts-v1/; /plugin/; / { compatible = "allwinner,sun7i-a20"; fragment@0 { target = <&can0