OpenWRT have support many allwinner chip . so easy to use it on banana pi
Allwinner Sun4i/5i/6i/7i/9i (sunxi) Various vendors are offering development boards / single-board computer based on the Allwinner SoCs. These are running various flavors of the A1x, A20, A31, and soon H3 SoCs, with different buildouts. The mach is called "sunxi".