src/mainboard/amd/pistachio/devicetree.cb

#Define gpp_configuration,	A=0, B=1, C=2, D=3, E=4(default)
#Define port_enable, (bit map): GFX(2,3), GPP(4,5,6,7)
#Define gfx_dev2_dev3, 0: a link will never be established on Dev2 or Dev3,
#			1: the system allows a PCIE link to be established on Dev2 or Dev3.
#Define gfx_dual_slot, 0: single slot, 1: dual slot
#Define gfx_lane_reversal, 0: disable lane reversal, 1: enable
#Define gfx_tmds, 0: didn't support TMDS, 1: support
#Define gfx_compliance, 0: didn't support compliance, 1: support
#Define gfx_reconfiguration, 0: short reconfiguration, 1(default): long reconfiguration
#Define gfx_link_width, 0: x16, 1: x1, 2: x2, 3: x4, 4: x8, 5: x12 (not supported), 6: x16
chip northbridge/amd/amdk8/root_complex
	device cpu_cluster 0 on
		chip cpu/amd/socket_AM2
		device lapic 0 on end
		end
	end
	device domain 0 on
		subsystemid 0x1022 0x3050 inherit
		chip northbridge/amd/amdk8
			device pci 18.0 on #  southbridge, K8 HT Configuration
				chip southbridge/amd/rs690
					device pci 0.0 on end # HT  	0x7910
				#	device pci 0.1 off end # CLK
					device pci 1.0 on  # Internal Graphics P2P bridge 0x7912
						device pci 5.0 on end	# Internal Graphics 0x791F
					end
					device pci 2.0 on end # PCIE P2P bridge (external graphics) 0x7913
					device pci 3.0 off end # PCIE P2P bridge	0x791b
					device pci 4.0 on end # PCIE P2P bridge 0x7914
					device pci 5.0 on end # PCIE P2P bridge 0x7915
					device pci 6.0 on end # PCIE P2P bridge 0x7916
					device pci 7.0 on end # PCIE P2P bridge 0x7917
					device pci 8.0 off end # NB/SB Link P2P bridge
					register "gpp_configuration" = "4"
					register "port_enable" = "0xfc"
					register "gfx_dev2_dev3" = "1"
					register "gfx_dual_slot" = "0"
					register "gfx_lane_reversal" = "0"
					register "gfx_tmds" = "0"
					register "gfx_compliance" = "0"
					register "gfx_reconfiguration" = "1"
					register "gfx_link_width" = "0"
				end
				chip southbridge/amd/sb600 # it is under NB/SB Link, but on the same pri bus
					device pci 12.0 on end # SATA  0x4380
					device pci 13.0 on end # USB   0x4387
					device pci 13.1 on end # USB   0x4388
					device pci 13.2 on end # USB   0x4389
					device pci 13.3 on end # USB   0x438a
					device pci 13.4 on end # USB   0x438b
					device pci 13.5 on end # USB 2 0x4386
	 				device pci 14.0 on # SM        0x4385
						chip drivers/generic/generic #dimm 0-0-0
							device i2c 50 on end
						end
						chip drivers/generic/generic #dimm 0-0-1
							device i2c 51 off end
						end
						chip drivers/generic/generic #dimm 0-1-0
							device i2c 52 off end
						end
						chip drivers/generic/generic #dimm 0-1-1
							device i2c 53 off end
						end
					end # SM
				device pci 14.1 on end # IDE    0x438c
				device pci 14.2 on end # HDA    0x4383
				device pci 14.3 on end # LPC	0x438d
				device pci 14.4 on end # PCI 0x4384
				device pci 14.5 on end # ACI 0x4382
				device pci 14.6 on end # MCI 0x438e
				end	#southbridge/amd/sb600
			end #  device pci 18.0

			device pci 18.1 on end		# K8 Address Map
			device pci 18.2 on end		# K8 DRAM Controller and HT Trace Mode
			device pci 18.3 on end		# K8 Miscellaneous Control
		end		#northbridge/amd/amdk8
	end #domain
end		#northbridge/amd/amdk8/root_complex