mb/hp/snb_ivb_laptops: Convert remaining PCI numbers into references

Change-Id: I58e5dfa57856e80d1a5e4a6fab0b2523301fa8f2
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80048
Reviewed-by: Thomas Heijligen <src@posteo.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Riku Viitanen <riku.viitanen@protonmail.com>
diff --git a/src/mainboard/hp/snb_ivb_laptops/variants/2170p/overridetree.cb b/src/mainboard/hp/snb_ivb_laptops/variants/2170p/overridetree.cb
index 8f35eee..433d798 100644
--- a/src/mainboard/hp/snb_ivb_laptops/variants/2170p/overridetree.cb
+++ b/src/mainboard/hp/snb_ivb_laptops/variants/2170p/overridetree.cb
@@ -7,8 +7,8 @@
 	device domain 0 on
 		subsystemid 0x103c 0x1815 inherit
 
-		device pci 01.0 off end	# PCIe Bridge for discrete graphics
-		device pci 02.0 on  end	# Internal graphics
+		device ref peg10 off end	# PCIe Bridge for discrete graphics
+		device ref igd on  end	# Internal graphics
 
 		chip southbridge/intel/bd82x6x	# Intel Series 7 Panther Point PCH
 			# mailbox at 0x200/0x201 and PM1 at 0x220
@@ -24,17 +24,17 @@
 			register "xhci_overcurrent_mapping" = "0x00000c03"
 			register "xhci_switchable_ports"    = "0x0000000f"
 
-			device pci 14.0 on  end	# USB 3.0 Controller
-			device pci 16.0 on  end	# Management Engine KT
-			device pci 1c.0 on  end	# PCIe Port #1
-			device pci 1c.1 off end	# PCIe Port #2
-			device pci 1c.2 on  end	# PCIe Port #3, SD/MMC
-			device pci 1c.3 on  end	# PCIe Port #4, WLAN
-			device pci 1c.4 off end	# PCIe Port #5
-			device pci 1c.5 off end	# PCIe Port #6
-			device pci 1c.6 off end	# PCIe Port #7
-			device pci 1c.7 off end	# PCIe Port #8
-			device pci 1f.0 on	# LPC bridge
+			device ref xhci on  end	# USB 3.0 Controller
+			device ref mei1 on  end	# Management Engine KT
+			device ref pcie_rp1 on  end	# PCIe Port #1
+			device ref pcie_rp2 off end	# PCIe Port #2
+			device ref pcie_rp3 on  end	# PCIe Port #3, SD/MMC
+			device ref pcie_rp4 on  end	# PCIe Port #4, WLAN
+			device ref pcie_rp5 off end	# PCIe Port #5
+			device ref pcie_rp6 off end	# PCIe Port #6
+			device ref pcie_rp7 off end	# PCIe Port #7
+			device ref pcie_rp8 off end	# PCIe Port #8
+			device ref lpc on	# LPC bridge
 				chip ec/hp/kbc1126
 					register "ec_data_port" = "0x62"
 					register "ec_cmd_port"  = "0x66"
diff --git a/src/mainboard/hp/snb_ivb_laptops/variants/2560p/overridetree.cb b/src/mainboard/hp/snb_ivb_laptops/variants/2560p/overridetree.cb
index d69a21e..a7b36e8 100644
--- a/src/mainboard/hp/snb_ivb_laptops/variants/2560p/overridetree.cb
+++ b/src/mainboard/hp/snb_ivb_laptops/variants/2560p/overridetree.cb
@@ -7,8 +7,8 @@
 	device domain 0 on
 		subsystemid 0x103c 0x162b inherit
 
-		device pci 01.0 off end # PEG
-		device pci 02.0 on  end # iGPU
+		device ref peg10 off end # PEG
+		device ref igd on  end # iGPU
 
 		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
 			# mailbox at 0x200/0x201 and PM1 at 0x220
@@ -21,24 +21,24 @@
 			# HDD(0), ODD(1), eSATA(4), dock eSATA(5)
 			register "sata_port_map" = "0x33"
 
-			device pci 1c.0 off end # PCIe Port #1
-			device pci 1c.1 on      # PCIe Port #2, ExpressCard
+			device ref pcie_rp1 off end # PCIe Port #1
+			device ref pcie_rp2 on      # PCIe Port #2, ExpressCard
 				smbios_slot_desc "SlotTypePcmcia" "SlotLengthShort"
 					"ExpressCard Slot" "SlotDataBusWidth1X"
 			end
-			device pci 1c.2 on  end # PCIe Port #3, SD/MMC Host Controller
-			device pci 1c.3 on      # PCIe Port #4, WLAN
+			device ref pcie_rp3 on  end # PCIe Port #3, SD/MMC Host Controller
+			device ref pcie_rp4 on      # PCIe Port #4, WLAN
 				smbios_slot_desc "SlotTypePciExpressMini52pinWithoutBSKO"
 					"SlotLengthShort" "Mini PCIe" "SlotDataBusWidth1X"
 			end
-			device pci 1c.4 off end # PCIe Port #5
-			device pci 1c.5 off end # PCIe Port #6
-			device pci 1c.6 on      # PCIe Port #7, WWAN
+			device ref pcie_rp5 off end # PCIe Port #5
+			device ref pcie_rp6 off end # PCIe Port #6
+			device ref pcie_rp7 on      # PCIe Port #7, WWAN
 				smbios_slot_desc "SlotTypePciExpressMini52pinWithoutBSKO"
 					"SlotLengthLong" "Mini PCIe" "SlotDataBusWidth1X"
 			end
-			device pci 1c.7 off end # PCIe Port #8
-			device pci 1f.0 on	# LPC bridge
+			device ref pcie_rp8 off end # PCIe Port #8
+			device ref lpc on	# LPC bridge
 				chip ec/hp/kbc1126
 					register "ec_data_port" = "0x60"
 					register "ec_cmd_port"  = "0x64"
diff --git a/src/mainboard/hp/snb_ivb_laptops/variants/2570p/overridetree.cb b/src/mainboard/hp/snb_ivb_laptops/variants/2570p/overridetree.cb
index d89492f..ced850a 100644
--- a/src/mainboard/hp/snb_ivb_laptops/variants/2570p/overridetree.cb
+++ b/src/mainboard/hp/snb_ivb_laptops/variants/2570p/overridetree.cb
@@ -7,8 +7,8 @@
 	device domain 0 on
 		subsystemid 0x103c 0x17df inherit
 
-		device pci 01.0 off end	# PCIe Bridge for discrete graphics
-		device pci 02.0 on  end	# Internal graphics
+		device ref peg10 off end	# PCIe Bridge for discrete graphics
+		device ref igd on  end	# Internal graphics
 
 		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
 			# mailbox at 0x200/0x201 and PM1 at 0x220
@@ -23,16 +23,16 @@
 			register "xhci_overcurrent_mapping" = "0x00000c03"
 			register "xhci_switchable_ports"    = "0x0000000f"
 
-			device pci 14.0 on  end	# USB 3.0 Controller
-			device pci 1c.0 on  end	# PCIe Port #1
-			device pci 1c.1 on  end	# PCIe Port #2, ExpressCard
-			device pci 1c.2 on  end	# PCIe Port #3, SD/MMC
-			device pci 1c.3 on  end	# PCIe Port #4, WLAN
-			device pci 1c.4 off end	# PCIe Port #5
-			device pci 1c.5 off end	# PCIe Port #6
-			device pci 1c.6 off end	# PCIe Port #7
-			device pci 1c.7 off end	# PCIe Port #8
-			device pci 1f.0 on	# LPC bridge
+			device ref xhci on  end	# USB 3.0 Controller
+			device ref pcie_rp1 on  end	# PCIe Port #1
+			device ref pcie_rp2 on  end	# PCIe Port #2, ExpressCard
+			device ref pcie_rp3 on  end	# PCIe Port #3, SD/MMC
+			device ref pcie_rp4 on  end	# PCIe Port #4, WLAN
+			device ref pcie_rp5 off end	# PCIe Port #5
+			device ref pcie_rp6 off end	# PCIe Port #6
+			device ref pcie_rp7 off end	# PCIe Port #7
+			device ref pcie_rp8 off end	# PCIe Port #8
+			device ref lpc on	# LPC bridge
 				chip ec/hp/kbc1126
 					register "ec_data_port" = "0x62"
 					register "ec_cmd_port"  = "0x66"
diff --git a/src/mainboard/hp/snb_ivb_laptops/variants/2760p/overridetree.cb b/src/mainboard/hp/snb_ivb_laptops/variants/2760p/overridetree.cb
index d911112..bd976bc 100644
--- a/src/mainboard/hp/snb_ivb_laptops/variants/2760p/overridetree.cb
+++ b/src/mainboard/hp/snb_ivb_laptops/variants/2760p/overridetree.cb
@@ -7,8 +7,8 @@
 	device domain 0 on
 		subsystemid 0x103c 0x162a inherit
 
-		device pci 01.0 off end	# PCIe Bridge for discrete graphics
-		device pci 02.0 on  end	# Internal graphics
+		device ref peg10 off end	# PCIe Bridge for discrete graphics
+		device ref igd on  end	# Internal graphics
 
 		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
 			# mailbox at 0x200/0x201 and PM1 at 0x220
@@ -20,15 +20,15 @@
 			register "pcie_hotplug_map" = "{ 0, 1, 1, 0, 0, 0, 0, 0 }"
 			register "sata_port_map" = "0x21"
 
-			device pci 1c.0 on  end	# PCIe Port #1
-			device pci 1c.1 on  end	# PCIe Port #2, ExpressCard
-			device pci 1c.2 on  end	# PCIe Port #3, SD/MMC
-			device pci 1c.3 on  end	# WLAN
-			device pci 1c.4 off end	# PCIe Port #5
-			device pci 1c.5 off end	# PCIe Port #6
-			device pci 1c.6 on  end	# PCIe Port #7, WWAN
-			device pci 1c.7 off end	# PCIe Port #8
-			device pci 1f.0 on	# LPC bridge
+			device ref pcie_rp1 on  end	# PCIe Port #1
+			device ref pcie_rp2 on  end	# PCIe Port #2, ExpressCard
+			device ref pcie_rp3 on  end	# PCIe Port #3, SD/MMC
+			device ref pcie_rp4 on  end	# WLAN
+			device ref pcie_rp5 off end	# PCIe Port #5
+			device ref pcie_rp6 off end	# PCIe Port #6
+			device ref pcie_rp7 on  end	# PCIe Port #7, WWAN
+			device ref pcie_rp8 off end	# PCIe Port #8
+			device ref lpc on	# LPC bridge
 				chip ec/hp/kbc1126
 					register "ec_data_port" = "0x60"
 					register "ec_cmd_port"  = "0x64"
diff --git a/src/mainboard/hp/snb_ivb_laptops/variants/8460p/overridetree.cb b/src/mainboard/hp/snb_ivb_laptops/variants/8460p/overridetree.cb
index 02dc6a4..8d4d23f 100644
--- a/src/mainboard/hp/snb_ivb_laptops/variants/8460p/overridetree.cb
+++ b/src/mainboard/hp/snb_ivb_laptops/variants/8460p/overridetree.cb
@@ -7,8 +7,8 @@
 	device domain 0 on
 		subsystemid 0x103c 0x161c inherit
 
-		device pci 01.0 on  end	# PCIe Bridge for discrete graphics
-		device pci 02.0 on  end	# Internal graphics
+		device ref peg10 on  end	# PCIe Bridge for discrete graphics
+		device ref igd on  end	# Internal graphics
 
 		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
 			# mailbox at 0x200/0x201 and PM1 at 0x220
@@ -21,16 +21,16 @@
 			# HDD(0), ODD(1), docking(3,5), eSATA(4)
 			register "sata_port_map" = "0x3b"
 
-			device pci 16.3 on  end	# Management Engine KT
-			device pci 1c.0 on  end	# PCIe Port #1
-			device pci 1c.1 on  end	# PCIe Port #2, ExpressCard
-			device pci 1c.2 on  end	# PCIe Port #3, SD/MMC
-			device pci 1c.3 on  end	# PCIe Port #4, WLAN
-			device pci 1c.4 off end	# PCIe Port #5
-			device pci 1c.5 off end	# PCIe Port #6
-			device pci 1c.6 on  end	# PCIe Port #7, WWAN
-			device pci 1c.7 on  end	# PCIe Port #8, NEC USB 3.0 Host Controller
-			device pci 1f.0 on	# LPC bridge
+			device ref me_kt on  end	# Management Engine KT
+			device ref pcie_rp1 on  end	# PCIe Port #1
+			device ref pcie_rp2 on  end	# PCIe Port #2, ExpressCard
+			device ref pcie_rp3 on  end	# PCIe Port #3, SD/MMC
+			device ref pcie_rp4 on  end	# PCIe Port #4, WLAN
+			device ref pcie_rp5 off end	# PCIe Port #5
+			device ref pcie_rp6 off end	# PCIe Port #6
+			device ref pcie_rp7 on  end	# PCIe Port #7, WWAN
+			device ref pcie_rp8 on  end	# PCIe Port #8, NEC USB 3.0 Host Controller
+			device ref lpc on	# LPC bridge
 				chip ec/hp/kbc1126
 					register "ec_data_port" = "0x60"
 					register "ec_cmd_port"  = "0x64"
diff --git a/src/mainboard/hp/snb_ivb_laptops/variants/8470p/overridetree.cb b/src/mainboard/hp/snb_ivb_laptops/variants/8470p/overridetree.cb
index 729db13..653c5ab 100644
--- a/src/mainboard/hp/snb_ivb_laptops/variants/8470p/overridetree.cb
+++ b/src/mainboard/hp/snb_ivb_laptops/variants/8470p/overridetree.cb
@@ -7,8 +7,8 @@
 	device domain 0 on
 		subsystemid 0x103c 0x179b inherit
 
-		device pci 01.0 on  end	# PCIe Bridge for discrete graphics
-		device pci 02.0 on  end	# Internal graphics
+		device ref peg10 on  end	# PCIe Bridge for discrete graphics
+		device ref igd on  end	# Internal graphics
 
 		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
 			# mailbox at 0x200/0x201 and PM1 at 0x220
@@ -24,17 +24,17 @@
 			register "xhci_overcurrent_mapping" = "0x00000c03"
 			register "xhci_switchable_ports"    = "0x0000000f"
 
-			device pci 14.0 on  end	# USB 3.0 Controller
-			device pci 16.3 on  end	# Management Engine KT
-			device pci 1c.0 on  end	# PCIe Port #1
-			device pci 1c.1 on  end	# PCIe Port #2, ExpressCard
-			device pci 1c.2 on  end	# PCIe Port #3, SD/MMC
-			device pci 1c.3 on  end	# PCIe Port #4, WLAN
-			device pci 1c.4 off end	# PCIe Port #5
-			device pci 1c.5 off end	# PCIe Port #6
-			device pci 1c.6 off end	# PCIe Port #7
-			device pci 1c.7 off end	# PCIe Port #8
-			device pci 1f.0 on	# LPC bridge
+			device ref xhci on  end	# USB 3.0 Controller
+			device ref me_kt on  end	# Management Engine KT
+			device ref pcie_rp1 on  end	# PCIe Port #1
+			device ref pcie_rp2 on  end	# PCIe Port #2, ExpressCard
+			device ref pcie_rp3 on  end	# PCIe Port #3, SD/MMC
+			device ref pcie_rp4 on  end	# PCIe Port #4, WLAN
+			device ref pcie_rp5 off end	# PCIe Port #5
+			device ref pcie_rp6 off end	# PCIe Port #6
+			device ref pcie_rp7 off end	# PCIe Port #7
+			device ref pcie_rp8 off end	# PCIe Port #8
+			device ref lpc on	# LPC bridge
 				chip ec/hp/kbc1126
 					register "ec_data_port" = "0x62"
 					register "ec_cmd_port"  = "0x66"
diff --git a/src/mainboard/hp/snb_ivb_laptops/variants/8770w/overridetree.cb b/src/mainboard/hp/snb_ivb_laptops/variants/8770w/overridetree.cb
index 02ee795..548a70f 100644
--- a/src/mainboard/hp/snb_ivb_laptops/variants/8770w/overridetree.cb
+++ b/src/mainboard/hp/snb_ivb_laptops/variants/8770w/overridetree.cb
@@ -5,11 +5,11 @@
 	device domain 0 on
 		subsystemid 0x103c 0x176c inherit
 
-		device pci 01.0 on	# PCIe Bridge for discrete graphics
+		device ref peg10 on	# PCIe Bridge for discrete graphics
 			device pci 00.0 on  end	# GPU
 			device pci 00.1 on  end	# HDMI Audio on GPU
 		end
-		device pci 02.0 off end	# Internal graphics
+		device ref igd off end	# Internal graphics
 
 		chip southbridge/intel/bd82x6x # Intel Series 7 Panther Point PCH
 			register "docking_supported" = "0"
@@ -25,16 +25,16 @@
 			register "xhci_overcurrent_mapping" = "0x00000c03"
 			register "xhci_switchable_ports"    = "0x0000000f"
 
-			device pci 14.0 on  end	# USB 3.0 Controller
-			device pci 1c.0 on  end	# PCIe Port #1
-			device pci 1c.1 on  end	# PCIe Port #2
-			device pci 1c.2 on  end	# Media Card and FireWire host controller
-			device pci 1c.3 on  end	# Wireless LAN Adapter
-			device pci 1c.4 on  end	# SATA Controller 2 for dock
-			device pci 1c.5 off end	# PCIe Port #6
-			device pci 1c.6 off end	# PCIe Port #7
-			device pci 1c.7 off end	# PCIe Port #8
-			device pci 1f.0 on	# LPC bridge
+			device ref xhci on  end	# USB 3.0 Controller
+			device ref pcie_rp1 on  end	# PCIe Port #1
+			device ref pcie_rp2 on  end	# PCIe Port #2
+			device ref pcie_rp3 on  end	# Media Card and FireWire host controller
+			device ref pcie_rp4 on  end	# Wireless LAN Adapter
+			device ref pcie_rp5 on  end	# SATA Controller 2 for dock
+			device ref pcie_rp6 off end	# PCIe Port #6
+			device ref pcie_rp7 off end	# PCIe Port #7
+			device ref pcie_rp8 off end	# PCIe Port #8
+			device ref lpc on	# LPC bridge
 				chip ec/hp/kbc1126
 					register "ec_data_port" = "0x62"
 					register "ec_cmd_port"  = "0x66"
diff --git a/src/mainboard/hp/snb_ivb_laptops/variants/folio_9470m/overridetree.cb b/src/mainboard/hp/snb_ivb_laptops/variants/folio_9470m/overridetree.cb
index 1eb9c4c..2f38cb6 100644
--- a/src/mainboard/hp/snb_ivb_laptops/variants/folio_9470m/overridetree.cb
+++ b/src/mainboard/hp/snb_ivb_laptops/variants/folio_9470m/overridetree.cb
@@ -7,8 +7,8 @@
 	device domain 0 on
 		subsystemid 0x103c 0x18df inherit
 
-		device pci 01.0 off end	# PCIe Bridge for discrete graphics
-		device pci 02.0 on  end	# Internal graphics
+		device ref peg10 off end	# PCIe Bridge for discrete graphics
+		device ref igd on  end	# Internal graphics
 
 		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
 			# mailbox at 0x200/0x201 and PM1 at 0x220
@@ -23,16 +23,16 @@
 			register "xhci_overcurrent_mapping" = "0x00000c03"
 			register "xhci_switchable_ports"    = "0x0000000f"
 
-			device pci 14.0 on  end	# USB 3.0 Controller
-			device pci 1c.0 on  end	# PCIe Port #1
-			device pci 1c.1 off end	# PCIe Port #2
-			device pci 1c.2 on  end	# PCIe Port #3 SDHCI
-			device pci 1c.3 on  end	# PCIe Port #4 WLAN
-			device pci 1c.4 off end	# PCIe Port #5
-			device pci 1c.5 off end	# PCIe Port #6
-			device pci 1c.6 off end	# PCIe Port #7
-			device pci 1c.7 off end	# PCIe Port #8
-			device pci 1f.0 on	# LPC bridge
+			device ref xhci on  end	# USB 3.0 Controller
+			device ref pcie_rp1 on  end	# PCIe Port #1
+			device ref pcie_rp2 off end	# PCIe Port #2
+			device ref pcie_rp3 on  end	# PCIe Port #3 SDHCI
+			device ref pcie_rp4 on  end	# PCIe Port #4 WLAN
+			device ref pcie_rp5 off end	# PCIe Port #5
+			device ref pcie_rp6 off end	# PCIe Port #6
+			device ref pcie_rp7 off end	# PCIe Port #7
+			device ref pcie_rp8 off end	# PCIe Port #8
+			device ref lpc on	# LPC bridge
 				chip ec/hp/kbc1126
 					register "ec_data_port" = "0x62"
 					register "ec_cmd_port"  = "0x66"
diff --git a/src/mainboard/hp/snb_ivb_laptops/variants/probook_6360b/overridetree.cb b/src/mainboard/hp/snb_ivb_laptops/variants/probook_6360b/overridetree.cb
index 3289588..16551d2 100644
--- a/src/mainboard/hp/snb_ivb_laptops/variants/probook_6360b/overridetree.cb
+++ b/src/mainboard/hp/snb_ivb_laptops/variants/probook_6360b/overridetree.cb
@@ -6,8 +6,8 @@
 	device domain 0 on
 		subsystemid 0x103c 0x1621 inherit
 
-		device pci 01.0 off end # PEG
-		device pci 02.0 on  end # iGPU
+		device ref peg10 off end # PEG
+		device ref igd on  end # iGPU
 
 		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
 			register "gen1_dec" = "0x007c0201"
@@ -20,21 +20,21 @@
 			# FIXME: ports 3, 5 are untested
 			register "sata_port_map" = "0x3b"
 
-			device pci 1c.0 on  end # PCIe Port #1
-			device pci 1c.1 on      # PCIe Port #2, ExpressCard
+			device ref pcie_rp1 on  end # PCIe Port #1
+			device ref pcie_rp2 on      # PCIe Port #2, ExpressCard
 				smbios_slot_desc "SlotTypePcmcia" "SlotLengthShort"
 					"ExpressCard Slot" "SlotDataBusWidth1X"
 			end
-			device pci 1c.2 on  end # PCIe Port #3, SD/MMC and FireWire
-			device pci 1c.3 on      # PCIe Port #4, WLAN
+			device ref pcie_rp3 on  end # PCIe Port #3, SD/MMC and FireWire
+			device ref pcie_rp4 on      # PCIe Port #4, WLAN
 				smbios_slot_desc "SlotTypePciExpressMini52pinWithoutBSKO"
 					"SlotLengthShort" "Mini PCIe" "SlotDataBusWidth1X"
 			end
-			device pci 1c.4 off end # PCIe Port #5
-			device pci 1c.5 off end # PCIe Port #6
-			device pci 1c.6 on  end # PCIe Port #7, WWAN
-			device pci 1c.7 off end # PCIe Port #8
-			device pci 1f.0 on
+			device ref pcie_rp5 off end # PCIe Port #5
+			device ref pcie_rp6 off end # PCIe Port #6
+			device ref pcie_rp7 on  end # PCIe Port #7, WWAN
+			device ref pcie_rp8 off end # PCIe Port #8
+			device ref lpc on
 				chip ec/hp/kbc1126
 					register "ec_data_port" = "0x60"
 					register "ec_cmd_port"  = "0x64"
diff --git a/src/mainboard/hp/snb_ivb_laptops/variants/revolve_810_g1/overridetree.cb b/src/mainboard/hp/snb_ivb_laptops/variants/revolve_810_g1/overridetree.cb
index 68b6daa..6701733 100644
--- a/src/mainboard/hp/snb_ivb_laptops/variants/revolve_810_g1/overridetree.cb
+++ b/src/mainboard/hp/snb_ivb_laptops/variants/revolve_810_g1/overridetree.cb
@@ -7,8 +7,8 @@
 	device domain 0 on
 		subsystemid 0x103c 0x18f8 inherit
 
-		device pci 01.0 off end	# PCIe Bridge for discrete graphics
-		device pci 02.0 on  end	# Internal graphics
+		device ref peg10 off end	# PCIe Bridge for discrete graphics
+		device ref igd on  end	# Internal graphics
 
 		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
 			# mailbox at 0x200/0x201 and PM1 at 0x220
@@ -23,16 +23,16 @@
 			register "xhci_overcurrent_mapping" = "0x00000c03"
 			register "xhci_switchable_ports"    = "0x0000000f"
 
-			device pci 14.0 on  end	# USB 3.0 Controller
-			device pci 1c.0 on  end	# PCIe Port #1
-			device pci 1c.1 off end	# PCIe Port #2
-			device pci 1c.2 on  end	# PCIe Port #3
-			device pci 1c.3 on  end	# PCIe Port #4
-			device pci 1c.4 off end	# PCIe Port #5
-			device pci 1c.5 off end	# PCIe Port #6
-			device pci 1c.6 off end	# PCIe Port #7
-			device pci 1c.7 off end	# PCIe Port #8
-			device pci 1f.0 on	# LPC bridge
+			device ref xhci on  end	# USB 3.0 Controller
+			device ref pcie_rp1 on  end	# PCIe Port #1
+			device ref pcie_rp2 off end	# PCIe Port #2
+			device ref pcie_rp3 on  end	# PCIe Port #3
+			device ref pcie_rp4 on  end	# PCIe Port #4
+			device ref pcie_rp5 off end	# PCIe Port #5
+			device ref pcie_rp6 off end	# PCIe Port #6
+			device ref pcie_rp7 off end	# PCIe Port #7
+			device ref pcie_rp8 off end	# PCIe Port #8
+			device ref lpc on	# LPC bridge
 				chip ec/hp/kbc1126
 					register "ec_data_port" = "0x62"
 					register "ec_cmd_port"  = "0x66"