diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
index b2c9bb664595..e3f5eaa3657d 100644
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
@@ -161,6 +161,7 @@
 			tx-fifo-depth = <16384>;
 			rx-fifo-depth = <16384>;
 			snps,multicast-filter-bins = <256>;
+			iommus = <&smmu 1>;
 			status = "disabled";
 		};
 
@@ -177,6 +178,7 @@
 			tx-fifo-depth = <16384>;
 			rx-fifo-depth = <16384>;
 			snps,multicast-filter-bins = <256>;
+			iommus = <&smmu 2>;
 			status = "disabled";
 		};
 
@@ -193,6 +195,7 @@
 			tx-fifo-depth = <16384>;
 			rx-fifo-depth = <16384>;
 			snps,multicast-filter-bins = <256>;
+			iommus = <&smmu 3>;
 			status = "disabled";
 		};
 
@@ -303,6 +306,7 @@
 			clocks = <&clkmgr STRATIX10_L4_MP_CLK>,
 				 <&clkmgr STRATIX10_SDMMC_CLK>;
 			clock-names = "biu", "ciu";
+			iommus = <&smmu 5>;
 			status = "disabled";
 		};
 
@@ -336,6 +340,29 @@
 			reg = <0xffd11000 0x1000>;
 		};
 
+		smmu: iommu@fa000000 {
+			compatible = "arm,mmu-500", "arm,smmu-v2";
+			reg = <0xfa000000 0x40000>;
+			#global-interrupts = <2>;
+			#iommu-cells = <1>;
+			clocks = <&clkmgr STRATIX10_L4_MAIN_CLK>;
+			clock-names = "iommu";
+			interrupt-parent = <&intc>;
+			interrupts = <0 128 4>,	/* Global Secure Fault */
+				<0 129 4>, /* Global Non-secure Fault */
+				/* Non-secure Context Interrupts (32) */
+				<0 138 4>, <0 139 4>, <0 140 4>, <0 141 4>,
+				<0 142 4>, <0 143 4>, <0 144 4>, <0 145 4>,
+				<0 146 4>, <0 147 4>, <0 148 4>, <0 149 4>,
+				<0 150 4>, <0 151 4>, <0 152 4>, <0 153 4>,
+				<0 154 4>, <0 155 4>, <0 156 4>, <0 157 4>,
+				<0 158 4>, <0 159 4>, <0 160 4>, <0 161 4>,
+				<0 162 4>, <0 163 4>, <0 164 4>, <0 165 4>,
+				<0 166 4>, <0 167 4>, <0 168 4>, <0 169 4>;
+			stream-match-mask = <0x7ff0>;
+			status = "disabled";
+		};
+
 		spi0: spi@ffda4000 {
 			compatible = "snps,dw-apb-ssi";
 			#address-cells = <1>;
@@ -445,6 +472,7 @@
 			resets = <&rst USB0_RESET>, <&rst USB0_OCP_RESET>;
 			reset-names = "dwc2", "dwc2-ecc";
 			clocks = <&clkmgr STRATIX10_USB_CLK>;
+			iommus = <&smmu 6>;
 			status = "disabled";
 		};
 
@@ -457,6 +485,7 @@
 			resets = <&rst USB1_RESET>, <&rst USB1_OCP_RESET>;
 			reset-names = "dwc2", "dwc2-ecc";
 			clocks = <&clkmgr STRATIX10_USB_CLK>;
+			iommus = <&smmu 7>;
 			status = "disabled";
 		};