diff --git a/src/mainboard/purism/librem_cnl/variants/librem_mini/devicetree.cb b/src/mainboard/purism/librem_cnl/variants/librem_mini/devicetree.cb
index c69f3f635e..9fde5e97da 100644
--- a/src/mainboard/purism/librem_cnl/variants/librem_mini/devicetree.cb
+++ b/src/mainboard/purism/librem_cnl/variants/librem_mini/devicetree.cb
@@ -204,22 +204,29 @@ chip soc/intel/cannonlake
 		device pci 1c.4 off end # PCI Express Port 5
 		device pci 1c.5 off end # PCI Express Port 6
 		device pci 1c.6 off end # PCI Express Port 7
-		device pci 1c.7 on	# PCI Express Port 8  (WLAN)
+		device pci 1c.7 on	# PCI Express Port 8
+			chip drivers/wifi/generic
+				device pci 00.0 on end	# x1 M.2/E 2230 (WLAN)
+			end
 			register "PcieRpSlotImplemented[7]" = "1"
 			register "PcieRpEnable[7]" = "1"
 			register "PcieRpLtrEnable[7]" = "1"
+			smbios_slot_desc "SlotTypeM2Socket1_SD" "SlotLengthOther"
 		end
 		device pci 1d.0 off end # PCI Express Port 9
-		device pci 1d.1 on	# PCI Express Port 10 (LAN)
+		device pci 1d.1 on	# PCI Express Port 10
+			device pci 00.0 on end # x1 (LAN)
 			register "PcieRpSlotImplemented[9]" = "1"
 			register "PcieRpEnable[9]" = "1"
 		end
 		device pci 1d.2 off end # PCI Express Port 11
 		device pci 1d.3 off end # PCI Express Port 12
-		device pci 1d.4 on	# PCI Express Port 13 (NVMe)
+		device pci 1d.4 on	# PCI Express Port 13
+			device pci 00.0 on end # x4 M.2/M 2280 (NVMe)
 			register "PcieRpSlotImplemented[12]" = "1"
 			register "PcieRpEnable[12]" = "1"
 			register "PcieRpLtrEnable[12]" = "1"
+			smbios_slot_desc "SlotTypeM2Socket3" "SlotLengthOther" "M.2/M 2280" "SlotDataBusWidth4X"
 		end
 		device pci 1d.5 off end # PCI Express Port 14
 		device pci 1d.6 off end # PCI Express Port 15