BananaPi R1 (lamobo-r1) OTG and WirringPi Support

Hey there, referring to my Thread im building an "Actual Image for the Bananapi R1 (Lamobo-r1). I did some progress but im still stuck at adding OTG an WirringPi support.

The only Documentation i found about this Topic is fairly old and the Links are down! The Documentation i found

Could anyone help me with that?

Not with details since it has been years when I tackle Allwinner A20, but those A20 board are all almost the same. SoC can only be wired in not many ways, so this forum search can help https://forum.armbian.com/forum/7-allwinner-a20/ or starting topics here https://forum.armbian.com/forum/173-allwinner-sunxi/ In case you want to see better overall support, check this https://docs.armbian.com/User-Guide_Board-Support-Rules/ Alone its hard to move on. In any case, mainline Linux is community work, outside this forum. BTW. Alternative for deprecated wirining pi https://linux-sunxi.org/GPIO

my 2c