/dts-v1/; /plugin/; / { compatible = "ti,beaglebone", "ti,beaglebone-black"; /* identification */ part-number = "BB-UART3"; version = "00A0"; /* state the resources this cape uses */ exclusive-use = /* the pin header uses */ "P9.42", /* uart3_txd */ /* the hardware ip uses */ "uart3"; fragment@0 { target = <&am33xx_pinmux>; __overlay__ { bb_uart3_pins: pinmux_bb_uart3_pins { pinctrl-single,pins = < 0x164 0x01 /* ecap0_in_pwm0_out.uart3_txd | MODE1 */ >; }; }; }; fragment@1 { target = <&uart3>; /* really uart3 */ __overlay__ { status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&bb_uart3_pins>; }; }; };