--- /dev/null	2021-04-30 22:43:33.168446000 +0300
+++ arch/arm/dts/rk3399-rock-pi-4c-u-boot.dtsi	2021-04-30 22:42:12.689610000 +0300
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Jagan Teki <jagan@amarulasolutions.com>
+ * Copyright (C) 2021 Sleep Walker <s199p.wa1k9r@gmail.com>
+ */
+
+#include "rk3399-u-boot.dtsi"
+#include "rk3399-sdram-lpddr4-100.dtsi"
+
+/ {
+	chosen {
+		u-boot,spl-boot-order = "same-as-spl", &spiflash, &sdhci, &sdmmc;
+	};
+
+	config {
+		u-boot,spl-payload-offset = <0x60000>; /* @ 384KB */
+	};
+
+	aliases {
+		spi0 = &spi1;
+	};
+
+};
+
+&vcc5v0_host {
+	gpio = <&gpio3 RK_PD6 GPIO_ACTIVE_HIGH>;
+};
+
+&vcc5v0_host_en {
+	rockchip,pins = <3 RK_PD6 RK_FUNC_GPIO &pcfg_pull_none>;
+};
+
+&spi1 {
+	status = "okay";
+
+	spiflash: flash@0 {
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&vdd_log {
+	regulator-init-microvolt = <950000>;
+};