diff --git a/src/mainboard/pcengines/apu2/variants/apu2/devicetree.cb b/src/mainboard/pcengines/apu2/variants/apu2/devicetree.cb
index 4f3206408e..2905e2cf1f 100644
--- a/src/mainboard/pcengines/apu2/variants/apu2/devicetree.cb
+++ b/src/mainboard/pcengines/apu2/variants/apu2/devicetree.cb
@@ -25,7 +25,7 @@ chip northbridge/amd/pi/00730F01/root_complex
 
 			chip northbridge/amd/pi/00730F01 # PCI side of HT root complex
 				device pci 0.0 on  end # Root Complex
-				device pci 0.2 off end # IOMMU
+				device pci 0.2 on end # IOMMU
 				device pci 1.0 off  end # Internal Graphics P2P bridge 0x9804
 				device pci 1.1 off  end # Internal Multimedia
 				device pci 2.0 on  end # PCIe Host Bridge
diff --git a/src/mainboard/pcengines/apu2/variants/apu3/devicetree.cb b/src/mainboard/pcengines/apu2/variants/apu3/devicetree.cb
index c4312914e2..4da123e78f 100644
--- a/src/mainboard/pcengines/apu2/variants/apu3/devicetree.cb
+++ b/src/mainboard/pcengines/apu2/variants/apu3/devicetree.cb
@@ -25,7 +25,7 @@ chip northbridge/amd/pi/00730F01/root_complex
 
 			chip northbridge/amd/pi/00730F01 # PCI side of HT root complex
 				device pci 0.0 on  end # Root Complex
-				device pci 0.2 off end # IOMMU
+				device pci 0.2 on end # IOMMU
 				device pci 1.0 off  end # Internal Graphics P2P bridge 0x9804
 				device pci 1.1 off  end # Internal Multimedia
 				device pci 2.0 on  end # PCIe Host Bridge
diff --git a/src/mainboard/pcengines/apu2/variants/apu4/devicetree.cb b/src/mainboard/pcengines/apu2/variants/apu4/devicetree.cb
index 9859255fad..b95afab7cb 100644
--- a/src/mainboard/pcengines/apu2/variants/apu4/devicetree.cb
+++ b/src/mainboard/pcengines/apu2/variants/apu4/devicetree.cb
@@ -25,7 +25,7 @@ chip northbridge/amd/pi/00730F01/root_complex
 
 			chip northbridge/amd/pi/00730F01 # PCI side of HT root complex
 				device pci 0.0 on  end # Root Complex
-				device pci 0.2 off end # IOMMU
+				device pci 0.2 on end # IOMMU
 				device pci 1.0 off  end # Internal Graphics P2P bridge 0x9804
 				device pci 1.1 off  end # Internal Multimedia
 				device pci 2.0 on  end # PCIe Host Bridge
diff --git a/src/mainboard/pcengines/apu2/variants/apu5/devicetree.cb b/src/mainboard/pcengines/apu2/variants/apu5/devicetree.cb
index 4bdaaaf834..b5700f8141 100644
--- a/src/mainboard/pcengines/apu2/variants/apu5/devicetree.cb
+++ b/src/mainboard/pcengines/apu2/variants/apu5/devicetree.cb
@@ -25,7 +25,7 @@ chip northbridge/amd/pi/00730F01/root_complex
 
 			chip northbridge/amd/pi/00730F01 # PCI side of HT root complex
 				device pci 0.0 on  end # Root Complex
-				device pci 0.2 off end # IOMMU
+				device pci 0.2 on end # IOMMU
 				device pci 1.0 off  end # Internal Graphics P2P bridge 0x9804
 				device pci 1.1 off  end # Internal Multimedia
 				device pci 2.0 on  end # PCIe Host Bridge