/include/ "bcm2835.dtsi" / { memory { reg = <0 0x10000000>; }; leds { compatible = "gpio-leds"; act { label = "ACT"; default-state = "keep"; linux,default-trigger = "heartbeat"; }; }; }; &gpio { pinctrl-names = "default"; gpioout: gpioout { brcm,pins = <6>; brcm,function = <1>; /* GPIO out */ }; alt0: alt0 { brcm,pins = <0 1 2 3 4 5 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 */ }; }; &i2c0 { status = "okay"; clock-frequency = <100000>; }; &i2c1 { status = "okay"; clock-frequency = <100000>; }; &sdhci { status = "okay"; bus-width = <4>; };