--- arch/arm/dts/rk3399-nanopc-t4-u-boot.dtsi.orig	2019-12-04 11:12:03 UTC
+++ arch/arm/dts/rk3399-nanopc-t4-u-boot.dtsi
@@ -5,3 +5,8 @@
 
 #include "rk3399-nanopi4-u-boot.dtsi"
 #include "rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi"
+/ {
+	chosen {
+		u-boot,spl-boot-order = "same-as-spl", &sdhci, &sdmmc;
+	};
+};