src/mainboard/google/butterfly/devicetree.cb

chip northbridge/intel/sandybridge
	# IGD Displays
	register "gfx.ndid" = "3"
	register "gfx.did" = "{ 0x80000100, 0x80000240, 0x80000410, 0x80000410, 0x00000005 }"

	# Enable DisplayPort Hotplug with 6ms pulse
	register "gpu_dp_d_hotplug" = "0x06"


	# Enable Panel as LVDS and configure power delays
	register "gpu_panel_port_select" = "0"			# LVDS
	register "gpu_panel_power_cycle_delay" = "6"		# T7: 500ms
	register "gpu_panel_power_up_delay" = "100"		# T1+T2: 10ms
	register "gpu_panel_power_down_delay" = "100"		# T5+T6: 10ms
	register "gpu_panel_power_backlight_on_delay" = "2100"	# T3: 210ms
	register "gpu_panel_power_backlight_off_delay" = "2100"	# T4: 210ms

	# Set backlight PWM values
	register "gpu_cpu_backlight" = "0x000001e8"
	register "gpu_pch_backlight" = "0x03d00000"

	register "max_mem_clock_mhz" = "666"			# DDR3-1333

	device cpu_cluster 0 on
		chip cpu/intel/socket_rPGA989
			device lapic 0 on end
		end
		chip cpu/intel/model_206ax
			# Magic APIC ID to locate this chip
			device lapic 0xacac off end

			register "c1_acpower" = "1"	# ACPI(C1) = MWAIT(C1)
			register "c2_acpower" = "3"	# ACPI(C2) = MWAIT(C3)
			register "c3_acpower" = "5"	# ACPI(C3) = MWAIT(C7)

			register "c1_battery" = "1"	# ACPI(C1) = MWAIT(C1)
			register "c2_battery" = "3"	# ACPI(C2) = MWAIT(C3)
			register "c3_battery" = "5"	# ACPI(C3) = MWAIT(C7)
		end
	end

	device domain 0 on
		device pci 00.0 on end # host bridge
		device pci 01.0 off end # PCIe Bridge for discrete graphics
		device pci 02.0 on end # vga controller

		chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH
			# GPI routing
			#  0 No effect (default)
			#  1 SMI# (if corresponding ALT_GPI_SMI_EN bit is also set)
			#  2 SCI (if corresponding GPIO_EN bit is also set)
			register "alt_gp_smi_en" = "0x0000"
			#register "gpi1_routing" = "1"	#SMI from EC
			register "gpi13_routing" = "2"	#SCI from EC

			# Enable SATA ports 0 & 1
			register "sata_port_map" = "0x3"
			# Set max SATA speed to 3.0 Gb/s
			register "sata_interface_speed_support" = "0x2"

			# Enable EC Port 0x68/0x6C
			register "gen1_dec" = "0x00040069"

			# EC range is 0x380-0387
			register "gen2_dec" = "0x00040381"

			# Enable zero-based linear PCIe root port functions
			register "pcie_port_coalesce" = "1"

			register "c2_latency" = "101"  # c2 not supported
			register "p_cnt_throttling_supported" = "1"

			device pci 14.0 on end # USB 3.0 Controller
			device pci 16.0 on end # Management Engine Interface 1
			device pci 16.1 off end # Management Engine Interface 2
			device pci 16.2 off end # Management Engine IDE-R
			device pci 16.3 off end # Management Engine KT
			device pci 19.0 off end # Intel Gigabit Ethernet
			device pci 1a.0 on end # USB2 EHCI #2
			device pci 1b.0 on end # High Definition Audio
			device pci 1c.0 on end # PCIe Port #1 (mini PCIe Slot - WLAN & Serial debug)
			device pci 1c.1 on end # PCIe Port #2 (ETH0)
			device pci 1c.2 on end # PCIe Port #3 (Card Reader)
				#force ASPM for PCIe bridge to Card Reader
				register "pcie_aspm_f2" = "0x3"
			device pci 1c.3 off 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 1d.0 on end # USB2 EHCI #1
			device pci 1e.0 off end # PCI bridge
			device pci 1f.0 on #LPC bridge
				chip drivers/pc80/tpm
					device pnp 0c31.0 on end
				end
				chip ec/quanta/ene_kb3940q
					# 60/64 KBC
					device pnp ff.1 on # dummy address
					end
				end
			end # LPC bridge
			device pci 1f.2 on end # SATA Controller 1
			device pci 1f.3 on end # SMBus
			device pci 1f.5 off end # SATA Controller 2
			device pci 1f.6 on end # Thermal
		end
	end
end