diff --git a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
index cf0f51535f..30ebe62ef4 100644
--- a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
@@ -186,6 +186,8 @@ chip soc/amd/cezanne
 	}"
 
 	device domain 0 on
+		device ref iommu on end
+
 		device ref gpp_bridge_0 on
 			chip drivers/wifi/generic
 				register "wake" = "GEVENT_8"
diff --git a/src/soc/amd/cezanne/Kconfig b/src/soc/amd/cezanne/Kconfig
index 1bb9353af4..8f93512ea3 100644
--- a/src/soc/amd/cezanne/Kconfig
+++ b/src/soc/amd/cezanne/Kconfig
@@ -47,6 +47,7 @@ config SOC_SPECIFIC_OPTIONS
 	select SOC_AMD_COMMON_BLOCK_GRAPHICS
 	select SOC_AMD_COMMON_BLOCK_HAS_ESPI
 	select SOC_AMD_COMMON_BLOCK_I2C
+	select SOC_AMD_COMMON_BLOCK_IOMMU
 	select SOC_AMD_COMMON_BLOCK_LPC
 	select SOC_AMD_COMMON_BLOCK_LPC_SPI_DMA
 	select SOC_AMD_COMMON_BLOCK_NONCAR
diff --git a/src/soc/amd/common/block/iommu/iommu.c b/src/soc/amd/common/block/iommu/iommu.c
index 49683d4620..b6e4ac2346 100644
--- a/src/soc/amd/common/block/iommu/iommu.c
+++ b/src/soc/amd/common/block/iommu/iommu.c
@@ -42,6 +42,7 @@ static const unsigned short pci_device_ids[] = {
 	PCI_DEVICE_ID_AMD_15H_MODEL_303F_NB_IOMMU,
 	PCI_DEVICE_ID_AMD_15H_MODEL_707F_NB_IOMMU,
 	PCI_DEVICE_ID_AMD_17H_MODEL_1020_NB_IOMMU,
+	PCI_DEVICE_ID_AMD_17H_MODEL_606F_NB_IOMMU,
 	0
 };