/dts-v1/; /plugin/; / { compatible = "ti,beaglebone", "ti,beaglebone-black"; /* identification */ part-number = "spi1mux"; fragment@0 { target = <&am33xx_pinmux>; __overlay__ { spi1_pins_s0: spi1_pins_s0 { pinctrl-single,pins = < 0x190 0x33 /* mcasp0_aclkx.spi1_sclk, INPUT_PULLUP | MODE3 */ 0x194 0x33 /* mcasp0_fsx.spi1_d0, INPUT_PULLUP | MODE3 */ 0x198 0x13 /* mcasp0_axr0.spi1_d1, OUTPUT_PULLUP | MODE3 */ 0x19c 0x13 /* mcasp0_ahclkr.spi1_cs0, OUTPUT_PULLUP | MODE3 */ >; }; }; }; fragment@1 { target = <&spi1>; __overlay__ { #address-cells = <1>; #size-cells = <0>; status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&spi1_pins_s0>; spidev@1 { spi-max-frequency = <24000000>; reg = <0>; compatible = "linux,spidev"; }; }; }; };