diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso
index ad2795668ec8..83908db335af 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso
@@ -150,6 +150,100 @@ pci@0,1 {
 	};
 };
 
+&pcie1 {
+	iommu-map = <0x0 &apps_smmu 0x1c80 0x1>,
+		    <0x100 &apps_smmu 0x1c81 0x1>,
+		    <0x208 &apps_smmu 0x1c84 0x1>,
+		    <0x210 &apps_smmu 0x1c85 0x1>,
+		    <0x218 &apps_smmu 0x1c86 0x1>,
+		    <0x300 &apps_smmu 0x1c87 0x1>,
+		    <0x408 &apps_smmu 0x1c90 0x1>,
+		    <0x410 &apps_smmu 0x1c91 0x1>,
+		    <0x418 &apps_smmu 0x1c92 0x1>,
+		    <0x500 &apps_smmu 0x1c93 0x1>,
+		    <0x600 &apps_smmu 0x1c94 0x1>,
+		    <0x700 &apps_smmu 0x1c95 0x1>,
+		    <0x701 &apps_smmu 0x1c96 0x1>,
+		    <0x800 &apps_smmu 0x1c97 0x1>,
+		    <0x900 &apps_smmu 0x1c98 0x1>,
+		    <0x901 &apps_smmu 0x1c99 0x1>;
+};
+
+&pcie1_switch0_dsp1 {
+	#address-cells = <3>;
+	#size-cells = <2>;
+
+	pcie@0,0 {
+		compatible = "pci1179,0623";
+		reg = <0x30000 0x0 0x0 0x0 0x0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+
+		device_type = "pci";
+		ranges;
+		bus-range = <0x2 0xff>;
+
+		vddc-supply = <&vdd_ntn_0p9>;
+		vdd18-supply = <&vdd_ntn_1p8>;
+		vdd09-supply = <&vdd_ntn_0p9>;
+		vddio1-supply = <&vdd_ntn_1p8>;
+		vddio2-supply = <&vdd_ntn_1p8>;
+		vddio18-supply = <&vdd_ntn_1p8>;
+
+		i2c-parent = <&i2c1 0x77>;
+
+		resx-gpios = <&tlmm 124 GPIO_ACTIVE_LOW>;
+
+		pinctrl-0 = <&pcie1_tc9563_resx_n>;
+		pinctrl-names = "default";
+
+		pcie@1,0 {
+			reg = <0x40800 0x0 0x0 0x0 0x0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			device_type = "pci";
+			ranges;
+			bus-range = <0x3 0xff>;
+		};
+
+		pcie@2,0 {
+			reg = <0x41000 0x0 0x0 0x0 0x0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			device_type = "pci";
+			ranges;
+			bus-range = <0x4 0xff>;
+		};
+
+		pcie@3,0 {
+			reg = <0x41800 0x0 0x0 0x0 0x0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			device_type = "pci";
+			ranges;
+			bus-range = <0x5 0xff>;
+
+			pci@0,0 {
+				reg = <0x50000 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				ranges;
+			};
+
+			pci@0,1 {
+				reg = <0x50100 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				ranges;
+			};
+		};
+	};
+};
+
 &tlmm {
 	pcie0_tc9563_resx_n: pcie0-tc9563-resx-state {
 		pins = "gpio78";
@@ -181,6 +275,14 @@ pcie0_wake_n: pcie0-wake-n-state {
 		bias-pull-up;
 	};
 
+	pcie1_tc9563_resx_n: pcie1-tc9563-resx-state {
+		pins = "gpio124";
+		function = "gpio";
+		bias-disable;
+		input-disable;
+		output-enable;
+	};
+
 };
 
 &wifi {
diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index e3d2f01881ae..cd54525e45e0 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -852,7 +852,7 @@ pcie@0,0 {
 		pinctrl-0 = <&tc9563_resx_n>;
 		pinctrl-names = "default";
 
-		pcie@1,0 {
+		pcie1_switch0_dsp1: pcie@1,0 {
 			reg = <0x20800 0x0 0x0 0x0 0x0>;
 			#address-cells = <3>;
 			#size-cells = <2>;