/dts-v1/; /plugin/; / { compatible = "allwinner,sun50i-a64"; fragment@0 { target-path = "/aliases"; __overlay__ { serial4 = "/soc/serial@1c29000"; }; }; fragment@1 { target = <&pio>; __overlay__ { uart4_pins: uart4-pins { pins = "PD2", "PD3"; function = "uart4"; }; uart4_rts_cts_pins: uart4-rts-cts-pins { pins = "PD4", "PD5"; function = "uart4"; }; }; }; fragment@2 { target = <&uart4>; __overlay__ { pinctrl-names = "default"; pinctrl-0 = <&uart4_pins>; status = "okay"; }; }; };