diff --git a/src/mainboard/lenovo/t520/variants/w520/devicetree.cb b/src/mainboard/lenovo/t520/variants/w520/devicetree.cb
index 8716046..8b2cbe7 100644
--- a/src/mainboard/lenovo/t520/variants/w520/devicetree.cb
+++ b/src/mainboard/lenovo/t520/variants/w520/devicetree.cb
@@ -37,9 +37,13 @@
 	register "pci_mmio_size" = "2048"
 
 	device domain 0 on
+		subsystemid 0x17aa 0x21cf inherit
+
 		device pci 00.0 on end # host bridge
 		device pci 01.0 on end # NVIDIA Corporation GF119M [NVS 4200M]
-		device pci 02.0 on end # vga controller
+		device pci 02.0 on
+			subsystemid 0x17aa 0x21d1
+		end # vga controller
 
 		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
 			# GPI routing
@@ -73,7 +77,9 @@
 			device pci 16.1 off end
 			device pci 16.2 off end
 			device pci 16.3 off end
-			device pci 19.0 on end # Intel Gigabit Ethernet
+			device pci 19.0 on # Intel Gigabit Ethernet
+				subsystemid 0x17aa 0x21ce
+			end
 			device pci 1a.0 on end # USB2 EHCI #2
 			device pci 1b.0 on end # High Definition Audio
 			device pci 1c.0 off end # PCIe Port #1
@@ -87,10 +93,10 @@
 			device pci 1c.6 on end # PCIe Port #7 USB 3.0 only W520
 			device pci 1c.7 off end # PCIe Port #8
 			device pci 1d.0 on end # USB2 EHCI #1
+
 			device pci 1f.0 on #LPC bridge
 				chip ec/lenovo/pmh7
-					device pnp ff.1 on # dummy
-					end
+					device pnp ff.1 on end # dummy
 					register "backlight_enable" = "0x01"
 					register "dock_event_enable" = "0x01"
 				end