/dts-v1/; /memreserve/ 0x0c000000 0x04000000; /include/ "bcm2835.dtsi" / { compatible = "raspberrypi,model-b", "brcm,bcm2835"; model = "Raspberry Pi Model B"; memory { reg = <0 0x10000000>; }; }; &gpio { pinctrl-names = "default"; pinctrl-0 = <&alt0 &alt3>; alt0: alt0 { brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11 14 15 40 45>; brcm,function = <4>; /* alt0 */ }; alt3: alt3 { brcm,pins = <48 49 50 51 52 53>; brcm,function = <7>; /* alt3 */ }; };