使用文档

设备树修改

新增一个 LED 节点 arch/arm/boot/dts/arm/vexpress-v2p-ca9.dts

	my_pl_led {
   
		compatible = "arm, cortex-a9-led";
		status = "okay";
	};

设备树编译

make dtbs

日志

  DTC     arch/arm/boot/dts/arm/vexpress