src/mainboard/system76/darp7/devicetree.cb

chip soc/intel/tigerlake
	register "common_soc_config" = "{
		// Touchpad I2C bus
		.i2c[0] = {
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 80,
			.fall_time_ns = 110,
		},
	}"

# ACPI (soc/intel/tigerlake/acpi.c)
	# Enable Enhanced Intel SpeedStep
	register "eist_enable" = "1"

	# Enable s0ix, required for TGL-U
	register "s0ix_enable" = "1"

# CPU (soc/intel/tigerlake/cpu.c)
	# Power limits
	register "power_limits_config[POWER_LIMITS_U_4_CORE]" = "{
		.tdp_pl1_override = 28,
		.tdp_pl2_override = 40,
	}"
	register "power_limits_config[POWER_LIMITS_U_2_CORE]" = "{
		.tdp_pl1_override = 28,
		.tdp_pl2_override = 40,
	}"

# FSP Memory (soc/intel/tigerlake/romstage/fsp_params.c)
	# Enable C6 DRAM
	register "enable_c6dram" = "1"

	# System Agent dynamic frequency support
	register "SaGv" = "SaGv_Enabled"

# FSP Silicon (soc/intel/tigerlake/fsp_params.c)
	# Acoustic settings
	register "AcousticNoiseMitigation" = "1"
	register "SlowSlewRate" = "SLEW_FAST_8"
	register "FastPkgCRampDisable" = "1"

	# FIVR configuration
	#   Read EXT_RAIL_CONFIG to determine bitmaps
	#     sudo devmem2 0xfe0011b8
	#     0x0
	#   Read EXT_V1P05_VR_CONFIG
	#     sudo devmem2 0xfe0011c0
	#     0x1a42000
	#   Read EXT_VNN_VR_CONFIG0
	#     sudo devmem2 0xfe0011c4
	#     0x1a42000
	# TODO: v1p05 voltage and vnn icc max?
	register "ext_fivr_settings" = "{
		.configure_ext_fivr = 1,
		.v1p05_enable_bitmap = 0,
		.vnn_enable_bitmap = 0,
		.v1p05_supported_voltage_bitmap = 0,
		.vnn_supported_voltage_bitmap = 0,
		.v1p05_icc_max_ma = 500,
		.vnn_sx_voltage_mv = 1050,
	}"

	# Read LPM_EN, make sure to invert the bits
	register "LpmStateDisableMask" = "
		LPM_S0i2_1 |
		LPM_S0i2_2 |
		LPM_S0i3_1 |
		LPM_S0i3_2 |
		LPM_S0i3_3 |
		LPM_S0i3_4
	"

	# Thermal
	register "tcc_offset" = "12"

	# Enable CNVi BT
	register "CnviBtCore" = "true"

# PM Util (soc/intel/tigerlake/pmutil.c)
	# GPE configuration
	register "pmc_gpe0_dw0" = "PMC_GPP_A"
	register "pmc_gpe0_dw1" = "PMC_GPP_R"
	register "pmc_gpe0_dw2" = "PMC_GPD"

# Actual device tree
	device cpu_cluster 0 on
		device lapic 0 on end
	end

	device domain 0 on
		subsystemid 0x1558 0x51a1 inherit

		#From CPU EDS (575683)
		device ref system_agent on end
		device ref igpu on
			# DDIA is eDP
			register "DdiPortAConfig" = "DDI_PORT_CFG_EDP"
			register "DdiPortAHpd" = "1"
			register "DdiPortADdc" = "0"

			# DDIB is HDMI
			register "DdiPortBConfig" = "DDI_PORT_CFG_NO_LFP"
			register "DdiPortBHpd" = "1"
			register "DdiPortBDdc" = "1"

			register "gfx" = "GMA_DEFAULT_PANEL(0)"
		end
		device ref dptf on end
		device ref peg on
			# PCIe PEG0 x4, Clock 0 (SSD1)
			register "PcieClkSrcUsage[0]" = "0x40"
			register "PcieClkSrcClkReq[0]" = "0"
			chip soc/intel/common/block/pcie/rtd3
				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_B16)" # SSD1_PWR_EN
				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D13)" # GPP_D13_SSD1_PLT_RST#
				register "srcclk_pin" = "0" # SSD1_CLKREQ#
				device generic 0 on end
			end
		end
		device ref tbt_pcie_rp0 on end # J_TYPEC2
		device ref north_xhci on # J_TYPEC2
			register "UsbTcPortEn" = "1"
			register "TcssXhciEn" = "1"
			chip drivers/usb/acpi
				device ref tcss_root_hub on
					chip drivers/usb/acpi
						register "desc" = ""USB3 J_TYPEC2""
						register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
						register "group" = "ACPI_PLD_GROUP(1, 3)"
						device ref tcss_usb3_port1 on end
					end
				end
			end
		end
		device ref tbt_dma0 on # J_TYPEC2
			chip drivers/intel/usb4/retimer
				register "dfp[0].power_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_A23)"
				use tcss_usb3_port1 as dfp[0].typec_port
				device generic 0 on end
			end
		end

		# From PCH EDS (576591)
		device ref south_xhci on
			# USB2
			register "usb2_ports[0]" = "USB2_PORT_MID(OC_SKIP)" # UJ_USB1
			register "usb2_ports[1]" = "USB2_PORT_TYPE_C(OC_SKIP)" # J_TYPEC1
			register "usb2_ports[2]" = "USB2_PORT_MID(OC_SKIP)" # J_USB3_1
			register "usb2_ports[4]" = "USB2_PORT_MID(OC_SKIP)" # Fingerprint
			register "usb2_ports[5]" = "USB2_PORT_TYPE_C(OC_SKIP)" # J_TYPEC2
			register "usb2_ports[6]" = "USB2_PORT_MID(OC_SKIP)" # Camera
			register "usb2_ports[9]" = "USB2_PORT_MID(OC_SKIP)" # Bluetooth
			# USB3
			register "usb3_ports[1]" = "USB3_PORT_DEFAULT(OC_SKIP)" # J_TYPEC1 CH0
			register "usb3_ports[2]" = "USB3_PORT_DEFAULT(OC_SKIP)" # J_USB3_1
			register "usb3_ports[3]" = "USB3_PORT_DEFAULT(OC_SKIP)" # J_TYPEC1 CH1

			# ACPI
			chip drivers/usb/acpi
				device ref xhci_root_hub on
					chip drivers/usb/acpi
						register "desc" = ""USB2 UJ_USB1""
						register "type" = "UPC_TYPE_A"
						device ref usb2_port1 on end
					end
					chip drivers/usb/acpi
						register "desc" = ""USB2 J_TYPEC1""
						register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
						register "group" = "ACPI_PLD_GROUP(1, 2)"
						device ref usb2_port2 on end
					end
					chip drivers/usb/acpi
						register "desc" = ""USB2 J_USB3_1""
						register "type" = "UPC_TYPE_A"
						register "group" = "ACPI_PLD_GROUP(1, 1)"
						device ref usb2_port3 on end
					end
					chip drivers/usb/acpi
						register "desc" = ""USB2 Fingerprint""
						register "type" = "UPC_TYPE_INTERNAL"
						device ref usb2_port5 on end
					end
					chip drivers/usb/acpi
						register "desc" = ""USB2 J_TYPEC2""
						register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
						register "group" = "ACPI_PLD_GROUP(1, 3)"
						device ref usb2_port6 on end
					end
					chip drivers/usb/acpi
						register "desc" = ""USB2 Camera""
						register "type" = "UPC_TYPE_INTERNAL"
						device ref usb2_port7 on end
					end
					chip drivers/usb/acpi
						register "desc" = ""USB2 Bluetooth""
						register "type" = "UPC_TYPE_INTERNAL"
						device ref usb2_port10 on end
					end
					chip drivers/usb/acpi
						register "desc" = ""USB3 J_TYPEC1 CH0""
						register "type" = "UPC_TYPE_A"
						register "group" = "ACPI_PLD_GROUP(1, 2)"
						device ref usb3_port2 on end
					end
					chip drivers/usb/acpi
						register "desc" = ""USB3 J_USB3_1""
						register "type" = "UPC_TYPE_A"
						register "group" = "ACPI_PLD_GROUP(1, 1)"
						device ref usb3_port3 on end
					end
					chip drivers/usb/acpi
						register "desc" = ""USB3 J_TYPEC1 CH1""
						register "type" = "UPC_TYPE_A"
						# TODO
						#register "group" = "ACPI_PLD_GROUP(1, 2)"
						device ref usb3_port4 on end
					end
				end
			end
		end
		device ref shared_ram on end
		device ref cnvi_wifi on
			chip drivers/wifi/generic
				register "wake" = "GPE0_PME_B0"
				device generic 0 on end
			end
		end
		device ref i2c0 on
			# Touchpad I2C bus
			register "SerialIoI2cMode[PchSerialIoIndexI2C0]" = "PchSerialIoPci"
			chip drivers/i2c/hid
				register "generic.hid" = ""PNP0C50""
				register "generic.desc" = ""FocalTech Touchpad""
				register "generic.irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPP_B3)"
				register "generic.probed" = "1"
				register "hid_desc_reg_offset" = "0x01"
				device i2c 38 on end
			end
		end
		device ref i2c1 on
			# TODO: USB-PD?
			register "SerialIoI2cMode[PchSerialIoIndexI2C1]" = "PchSerialIoPci"
		end
		device ref heci1 on end
		device ref uart2 on
			# Debug console
			register "SerialIoUartMode[PchSerialIoIndexUART2]" = "PchSerialIoSkipInit"
		end
		device ref sata on
			# SATA1 (SSD0)
			register "SataPortsEnable[1]" = "1"
			register "SataPortsDevSlp[1]" = "1"
			register "SataPortsEnableDitoConfig[1]" = "1"
			register "SataSalpSupport" = "1"
		end
		device ref pcie_rp1 on
			register "PcieRpLtrEnable[0]" = "1"
		end
		device ref pcie_rp6 on
			# PCIe root port #6 x1, Clock 2 (CARD)
			register "PcieRpEnable[5]" = "1"
			register "PcieRpLtrEnable[5]" = "1"
			register "PcieClkSrcUsage[2]" = "5"
			register "PcieClkSrcClkReq[2]" = "2"
		end
		device ref pcie_rp7 on
			# PCIe root port #7 x1, Clock 3 (GLAN)
			register "PcieRpEnable[6]" = "1"
			register "PcieRpLtrEnable[6]" = "1"
			register "PcieClkSrcUsage[3]" = "6"
			register "PcieClkSrcClkReq[3]" = "3"
			chip soc/intel/common/block/pcie/rtd3
				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_F9)" # GPIO_LAN_EN
				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F7)" # GPIO_LANRTD3
				register "srcclk_pin" = "3" # GLAN_CLKREQ#
				device generic 0 on end
			end
		end
		device ref pcie_rp8 on
			# PCIe root port #8 x1, Clock 1 (WLAN)
			register "PcieRpEnable[7]" = "1"
			register "PcieRpLtrEnable[7]" = "1"
			register "PcieClkSrcUsage[1]" = "7"
			register "PcieClkSrcClkReq[1]" = "1"
			register "PcieRpSlotImplemented[7]" = "1"
		end
		device ref pcie_rp9 on
			# PCIe root port #9 x4, Clock 4 (SSD0)
			register "PcieRpEnable[8]" = "1"
			register "PcieRpLtrEnable[8]" = "1"
			register "PcieClkSrcUsage[4]" = "8"
			register "PcieClkSrcClkReq[4]" = "4"
			register "PcieRpSlotImplemented[8]" = "1"
			chip soc/intel/common/block/pcie/rtd3
				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D14)" # SSD_PWR_EN
				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_H0)" # GPP_H0_RTD3
				register "srcclk_pin" = "4"
				device generic 0 on end
			end
		end
		device ref pch_espi on
			register "gen1_dec" = "0x000c0081"
			register "gen2_dec" = "0x00040069"
			register "gen3_dec" = "0x00fc0E01"
			register "gen4_dec" = "0x00fc0F01"
			chip drivers/pc80/tpm
				device pnp 0c31.0 on end
			end
		end
		device ref p2sb on end
		device ref pmc hidden
			# The pmc_mux chip driver is a placeholder for the
			# PMC.MUX device in the ACPI hierarchy.
			chip drivers/intel/pmc_mux
				device generic 0 on
					chip drivers/intel/pmc_mux/conn
						# J_TYPEC2
						use usb2_port6 as usb2_port
						use tcss_usb3_port1 as usb3_port
						# SBU & HSL follow CC
						device generic 0 alias conn0 on end
					end
				end
			end
		end
		device ref hda on
			register "PchHdaAudioLinkHdaEnable" = "1"
		end
		device ref smbus on end
		device ref fast_spi on end
	end
end