u-boot-brain/arch/arm/dts/rk3399-rock-pi-4-u-boot.dtsi

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2019 Jagan Teki <jagan@amarulasolutions.com>
 */

#include "rk3399-u-boot.dtsi"
/ {
	chosen {
		u-boot,spl-boot-order = "same-as-spl", &sdhci, &sdmmc;
	};
};