diff --git a/src/soc/amd/phoenix/chipset.cb b/src/soc/amd/phoenix/chipset.cb
index 5c341c8783..47b393d030 100644
--- a/src/soc/amd/phoenix/chipset.cb
+++ b/src/soc/amd/phoenix/chipset.cb
@@ -9,7 +9,12 @@ chip soc/amd/phoenix
 		device pci 00.0 alias gnb on ops phoenix_root_complex_operations end
 		device pci 00.2 alias iommu off ops amd_iommu_ops end
 
-		device pci 01.0 on end # Dummy Host Bridge
+		device pci 01.0 on end # Dummy Host Bridge, do not disable
+		# The PCIe GPP aliases in this SoC match the device and function numbers
+		device pci 01.1 alias gpp_bridge_1_1 off ops amd_external_pcie_gpp_ops end
+		device pci 01.2 alias gpp_bridge_1_2 off ops amd_external_pcie_gpp_ops end
+		device pci 01.3 alias gpp_bridge_1_3 off ops amd_external_pcie_gpp_ops end
+		device pci 01.4 alias gpp_bridge_1_4 off ops amd_external_pcie_gpp_ops end
 
 		device pci 02.0 on end # Dummy Host Bridge, do not disable
 		device pci 02.1 alias gpp_bridge_0 off ops amd_external_pcie_gpp_ops end