--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -144,6 +144,7 @@
 	rk3399-puma-haikou.dtb \
 	rk3399-roc-pc.dtb \
 	rk3399-roc-pc-mezzanine.dtb \
+	rk3399-roc-pc-plus.dtb \
 	rk3399-rock-pi-4a.dtb \
 	rk3399-rock-pi-4b.dtb \
 	rk3399-rock-pi-4c.dtb \

new file mode 100644
index 00000000..02a8f9f5
--- /dev/null
+++ b/arch/arm/dts/rk3399-roc-pc-plus.dts
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2017 T-Chip Intelligent Technology Co., Ltd
+ */
+
+/dts-v1/;
+#include "rk3399-roc-pc.dtsi"
+
+/ {
+	model = "Firefly ROC-RK3399-PC-PLUS Board";
+	compatible = "firefly,roc-rk3399-pc-plus", "rockchip,rk3399";
+
+	vcc3v3_ngff: vcc3v3-ngff {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc3v3_ngff";
+		enable-active-high;
+		gpio = <&gpio4 RK_PD3 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&vcc3v3_ngff_en>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&dc_12v>;
+	};
+
+	vcc3v3_pcie: vcc3v3-pcie {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc3v3_pcie";
+		enable-active-high;
+		gpio = <&gpio1 RK_PC1 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&vcc3v3_pcie_en>;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&dc_12v>;
+	};
+};
+
+&pcie_phy {
+	status = "okay";
+};
+
+&pcie0 {
+	ep-gpios = <&gpio4 RK_PD1 GPIO_ACTIVE_HIGH>;
+	num-lanes = <4>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie_perst>;
+	vpcie3v3-supply = <&vcc3v3_pcie>;
+	vpcie1v8-supply = <&vcc1v8_pmu>;
+	vpcie0v9-supply = <&vcca_0v9>;
+	status = "okay";
+};
+
+&pinctrl {
+	ngff {
+		vcc3v3_ngff_en: vcc3v3-ngff-en {
+			rockchip,pins = <4 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	pcie {
+		vcc3v3_pcie_en: vcc3v3-pcie-en {
+			rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		pcie_perst: pcie-perst {
+			rockchip,pins = <4 RK_PD1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
+
+&sdio0 {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	keep-power-in-suspend;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc3v3_ngff>;
+	vqmmc-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
+	status = "okay";
+};


new file mode 100644
index 00000000..02a8f9f5
--- /dev/null
+++ b/arch/arm/dts/rk3399-roc-pc-plus-u-boot.dtsi
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2020 Amarula Solutions(India)
+ */
+
+#include "rk3399-roc-pc-u-boot.dtsi"