diff --git a/src/mainboard/ocp/wedge100s/devicetree.cb b/src/mainboard/ocp/wedge100s/devicetree.cb
index bbea89e558..48410bae08 100644
--- a/src/mainboard/ocp/wedge100s/devicetree.cb
+++ b/src/mainboard/ocp/wedge100s/devicetree.cb
@@ -4,10 +4,26 @@ chip soc/intel/fsp_broadwell_de
 	end
 	device domain 0 on
 		device pci 00.0 on end # SoC router
-		device pci 14.0 on end # xHCI Controller
-		device pci 19.0 on end # Gigabit LAN Controller
-		device pci 1d.0 on end # EHCI Controller
-		device pci 1f.0 on
+		device pci 01.0 on # PCIe x1
+			# Intel i210t
+		end
+		device pci 02.0 on # PCIe x1
+			# QuickData Technology
+		end
+		device pci 02.2 on # PCIe x1
+			# Intel X552 10 GbE SFP+
+		end
+		device pci 03.0 on end # PEG 16x
+		device pci 05.0 on end # Vtd
+		device pci 05.1 on end # IIO Hotplug
+		device pci 05.2 on end # IIO
+		device pci 05.4 on end # PIC
+		device pci 14.0 off end # xHCI Controller
+		device pci 1c.0 on # PCH PCIe Gen2 x4
+			# BCM56960 Switch ASIC
+		end
+		device pci 1d.0 on end # PCH EHCI Controller
+		device pci 1f.0 on # LPC
 			chip drivers/pc80/tpm
 				device pnp 0c31.0 on end
 			end
@@ -47,6 +63,9 @@ chip soc/intel/fsp_broadwell_de
 		end # LPC Bridge
 		device pci 1f.2 on end # SATA Controller
 		device pci 1f.3 on end # SMBus Controller
-		device pci 1f.5 on end # SATA Controller
+		device pci 1f.5 off end # SATA Controller
+		device pci 1f.6 on # Thermal Management Controller
+			# DON'T DISABLE, CRASHES FSP MR2
+		end
 	end
 end