diff --git a/src/soc/amd/cezanne/chipset.cb b/src/soc/amd/cezanne/chipset.cb
index f4d5ccc782..42c711a276 100644
--- a/src/soc/amd/cezanne/chipset.cb
+++ b/src/soc/amd/cezanne/chipset.cb
@@ -4,5 +4,14 @@ chip soc/amd/cezanne
 	end
 	device domain 0 on
 		device pci 00.0 alias gnb on end
+		device pci 14.0 on end # SMBus, primary FCH function
+		device pci 18.0 on end # Data fabric [0-7]
+		device pci 18.1 on end
+		device pci 18.2 on end
+		device pci 18.3 on end
+		device pci 18.4 on end
+		device pci 18.5 on end
+		device pci 18.6 on end
+		device pci 18.7 on end
 	end
 end