src/mainboard/google/butterfly/devicetree.cb

chip northbridge/intel/sandybridge
	# IGD Displays
	register "gfx" = "GMA_STATIC_DISPLAYS(0)"

	# 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" = "PANEL_PORT_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 "spd_addresses" = "{0x50, 0, 0x52, 0}"
	register "ec_present" = "1"
	# FIXME: Native raminit requires reduced max clock
	register "max_mem_clock_mhz" = "CONFIG(USE_NATIVE_RAMINIT) ? 666 : 800"
	# Force double refresh rate
	register "ddr_refresh_rate_config" = "DDR_REFRESH_RATE_DOUBLE"

	register "usb_port_config" = "{
		{ 1, 0, 0x0040 },
		{ 1, 0, 0x0040 },
		{ 1, 0, 0x0040 },
		{ 0, 0, 0x0000 },
		{ 0, 0, 0x0000 },
		{ 0, 0, 0x0000 },
		{ 0, 0, 0x0000 },
		{ 0, 0, 0x0000 },
		{ 0, 4, 0x0000 },
		{ 1, 4, 0x0080 },
		{ 1, 4, 0x0040 },
		{ 0, 4, 0x0000 },
		{ 0, 4, 0x0000 },
		{ 0, 4, 0x0000 },}"

	device domain 0 on
		device ref host_bridge on end # host bridge
		device ref peg10 off end # PCIe Bridge for discrete graphics
		device ref igd 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" = "true"

			device ref xhci on end # USB 3.0 Controller
			device ref mei1 on end # Management Engine Interface 1
			device ref mei2 off end # Management Engine Interface 2
			device ref me_ide_r off end # Management Engine IDE-R
			device ref me_kt off end # Management Engine KT
			device ref gbe off end # Intel Gigabit Ethernet
			device ref ehci2 on end # USB2 EHCI #2
			device ref hda on end # High Definition Audio
			device ref pcie_rp1 on end # PCIe Port #1 (mini PCIe Slot - WLAN & Serial debug)
			device ref pcie_rp2 on end # PCIe Port #2 (ETH0)
			device ref pcie_rp3 on end # PCIe Port #3 (Card Reader)
				#force ASPM for PCIe bridge to Card Reader
				register "pcie_aspm[2]" = "0x3"
			device ref pcie_rp4 off 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 ehci1 on end # USB2 EHCI #1
			device ref pci_bridge off end # PCI bridge
			device ref lpc 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 ref sata1 on end # SATA Controller 1
			device ref smbus on
				subsystemid 0x04B4 0x18D1
			end # SMBus
			device ref sata2 off end # SATA Controller 2
			device ref thermal on end # Thermal
		end
	end
end