linux-libre/arch/xtensa/boot/dts/lx60.dts

/dts-v1/;
/include/ "xtfpga.dtsi"
/include/ "xtfpga-flash-4m.dtsi"

/ {
	compatible = "cdns,xtensa-lx60";
	memory@0 {
		device_type = "memory";
		reg = <0x00000000 0x04000000>;
	};
};