u-boot/arch/arm/dts/ast2500-evb.dts

/dts-v1/;

#include "ast2500-u-boot.dtsi"

/ {
	memory {
		device_type = "memory";
		reg = <0x80000000 0x20000000>;
	};

	chosen {
		stdout-path = &uart5;
	};
};

&uart5 {
	u-boot,dm-pre-reloc;
	status = "okay";
};

&sdrammc {
	clock-frequency = <400000000>;
};