diff --git a/Silicon/Socionext/SynQuacer/AcpiTables/Iort.aslc b/Silicon/Socionext/SynQuacer/AcpiTables/Iort.aslc
index 92c485f8006f..3f2aaa3d8858 100644
--- a/Silicon/Socionext/SynQuacer/AcpiTables/Iort.aslc
+++ b/Silicon/Socionext/SynQuacer/AcpiTables/Iort.aslc
@@ -13,6 +13,7 @@
 **/
 
 #include <IndustryStandard/IoRemappingTable.h>
+#include <Platform/MemoryMap.h>
 
 #include "AcpiTables.h"
 
@@ -29,10 +30,23 @@ typedef struct {
   EFI_ACPI_6_0_IO_REMAPPING_ID_TABLE        RcIdMapping;
 } SYNQUACER_RC_NODE;
 
+typedef struct {
+  EFI_ACPI_6_0_IO_REMAPPING_SMMU_NODE       Node;
+  EFI_ACPI_6_0_IO_REMAPPING_SMMU_INT        Context[8];
+} SYNQUACER_SMMU_NODE;
+
+typedef struct {
+  EFI_ACPI_6_0_IO_REMAPPING_NAMED_COMP_NODE Node;
+  CONST CHAR8                               Name[11];
+  EFI_ACPI_6_0_IO_REMAPPING_ID_TABLE        RcIdMapping;
+} SYNQUACER_NC_NODE;
+
 typedef struct {
   EFI_ACPI_6_0_IO_REMAPPING_TABLE           Iort;
   SYNQUACER_ITS_NODE                        ItsNode;
   SYNQUACER_RC_NODE                         RcNode[2];
+  SYNQUACER_SMMU_NODE                       SmmuNode;
+  SYNQUACER_NC_NODE                         NamedCompNode[2];
 } SYNQUACER_IO_REMAPPING_STRUCTURE;
 
 #define __SYNQUACER_ID_MAPPING(In, Num, Out, Ref, Flags)    \
@@ -49,7 +63,7 @@ STATIC SYNQUACER_IO_REMAPPING_STRUCTURE Iort = {
     __ACPI_HEADER(EFI_ACPI_6_0_IO_REMAPPING_TABLE_SIGNATURE,
                   SYNQUACER_IO_REMAPPING_STRUCTURE,
                   EFI_ACPI_IO_REMAPPING_TABLE_REVISION),
-    3,                                              // NumNodes
+    6,                                              // NumNodes
     sizeof(EFI_ACPI_6_0_IO_REMAPPING_TABLE),        // NodeOffset
     0                                               // Reserved
   }, {
@@ -94,7 +108,7 @@ STATIC SYNQUACER_IO_REMAPPING_STRUCTURE Iort = {
       //
       __SYNQUACER_ID_MAPPING(0x0, 0x0, 0x0, ItsNode,
                              EFI_ACPI_IORT_ID_MAPPING_FLAGS_SINGLE),
-  }, {
+    }, {
       // PciRcNode
       {
         {
@@ -121,6 +135,97 @@ STATIC SYNQUACER_IO_REMAPPING_STRUCTURE Iort = {
       __SYNQUACER_ID_MAPPING(0x0, 0x0, 0x0, ItsNode,
                              EFI_ACPI_IORT_ID_MAPPING_FLAGS_SINGLE),
     }
+  }, {
+    // NETSEC/eMMC SMMU node
+    {
+      {
+        EFI_ACPI_IORT_TYPE_SMMUv1v2,
+        sizeof(SYNQUACER_SMMU_NODE),
+        0x0,
+        0x0,
+        0x0,
+        0x0,
+      },
+      SYNQUACER_SCB_SMMU_BASE,
+      SYNQUACER_SCB_SMMU_SIZE,
+      EFI_ACPI_IORT_SMMUv1v2_MODEL_MMU500,
+      EFI_ACPI_IORT_SMMUv1v2_FLAG_COH_WALK,
+      FIELD_OFFSET(EFI_ACPI_6_0_IO_REMAPPING_SMMU_NODE,
+                   SMMU_NSgIrpt),
+      0x8,
+      sizeof(EFI_ACPI_6_0_IO_REMAPPING_SMMU_NODE),
+      0x0,
+      0x0,
+      228,
+      EFI_ACPI_IORT_SMMUv1v2_INT_FLAG_LEVEL,
+      0x0,
+      0x0,
+    }, {
+      { 228, EFI_ACPI_IORT_SMMUv1v2_INT_FLAG_LEVEL, },
+      { 228, EFI_ACPI_IORT_SMMUv1v2_INT_FLAG_LEVEL, },
+      { 228, EFI_ACPI_IORT_SMMUv1v2_INT_FLAG_LEVEL, },
+      { 228, EFI_ACPI_IORT_SMMUv1v2_INT_FLAG_LEVEL, },
+      { 228, EFI_ACPI_IORT_SMMUv1v2_INT_FLAG_LEVEL, },
+      { 228, EFI_ACPI_IORT_SMMUv1v2_INT_FLAG_LEVEL, },
+      { 228, EFI_ACPI_IORT_SMMUv1v2_INT_FLAG_LEVEL, },
+      { 228, EFI_ACPI_IORT_SMMUv1v2_INT_FLAG_LEVEL, },
+    },
+  }, {
+    {
+      // NETSEC named component node
+      {
+        {
+          EFI_ACPI_IORT_TYPE_NAMED_COMP,
+          sizeof(SYNQUACER_NC_NODE),
+          0x0,
+          0x0,
+          0x1,
+          FIELD_OFFSET(SYNQUACER_NC_NODE, RcIdMapping),
+        },
+        0x0,
+        EFI_ACPI_IORT_MEM_ACCESS_PROP_CCA,
+        0x0,
+        0x0,
+        EFI_ACPI_IORT_MEM_ACCESS_FLAGS_CPM |
+        EFI_ACPI_IORT_MEM_ACCESS_FLAGS_DACS,
+        40,
+      }, {
+        "\\_SB_.NET0"
+      }, {
+        0x0,
+        0x0,
+        0x0,
+        FIELD_OFFSET(SYNQUACER_IO_REMAPPING_STRUCTURE, SmmuNode),
+        EFI_ACPI_IORT_ID_MAPPING_FLAGS_SINGLE
+      }
+    }, {
+      // eMMC named component node
+      {
+        {
+          EFI_ACPI_IORT_TYPE_NAMED_COMP,
+          sizeof(SYNQUACER_NC_NODE),
+          0x0,
+          0x0,
+          0x1,
+          FIELD_OFFSET(SYNQUACER_NC_NODE, RcIdMapping),
+        },
+        0x0,
+        EFI_ACPI_IORT_MEM_ACCESS_PROP_CCA,
+        0x0,
+        0x0,
+        EFI_ACPI_IORT_MEM_ACCESS_FLAGS_CPM |
+        EFI_ACPI_IORT_MEM_ACCESS_FLAGS_DACS,
+        40,
+      }, {
+        "\\_SB_.MMC0"
+      }, {
+        0x0,
+        0x0,
+        0x0,
+        FIELD_OFFSET(SYNQUACER_IO_REMAPPING_STRUCTURE, SmmuNode),
+        EFI_ACPI_IORT_ID_MAPPING_FLAGS_SINGLE
+      }
+    }
   }
 };
 
