src/mainboard/system76/rpl/devicetree.cb

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

	# Enable Enhanced Intel SpeedStep
	register "eist_enable" = "1"

	# Enable C6 DRAM
	register "enable_c6dram" = "1"

	# Thermal
	register "tcc_offset" = "8"

	# Disable package C state demotion on Raptorlake as a W/A for S0ix issues
	# seen on J0 and Q0 SKUs
	register "disable_package_c_state_demotion" = "1"

	device cpu_cluster 0 on end

	device domain 0 on
		device ref system_agent on end
		device ref igpu on
			# DDIA is eDP, DDIB is HDMI
			register "ddi_portA_config" = "1"
			register "ddi_ports_config" = "{
				[DDI_PORT_A] = DDI_ENABLE_HPD,
				[DDI_PORT_B] = DDI_ENABLE_HPD | DDI_ENABLE_DDC,
			}"

			register "gfx" = "GMA_DEFAULT_PANEL(0)"
		end
		device ref shared_sram on end
		device ref cnvi_wifi on
			register "cnvi_bt_core" = "true"
			register "cnvi_bt_audio_offload" = "true"
			chip drivers/wifi/generic
				register "wake" = "GPE0_PME_B0"
				device generic 0 on end
			end
		end
		device ref i2c1 on
			register "serial_io_i2c_mode[PchSerialIoIndexI2C1]" = "PchSerialIoPci"
		end

		device ref heci1 on end
		device ref sata on
			register "sata_salp_support" = "1"
			register "sata_ports_enable[1]" = "1" # SSD1
			# FIXME: DevSlp breaks S0ix
			#register "sata_ports_dev_slp[1]" = "1" # GPP_H12 (SATA1_DEVSLP1)
		end
		device ref pch_espi on
			register "gen1_dec" = "0x00040069" # EC PM channel
			register "gen2_dec" = "0x00fc0e01" # AP/EC command
			register "gen3_dec" = "0x00fc0f01" # AP/EC debug
			chip drivers/pc80/tpm
				device pnp 0c31.0 on end
			end
		end
		device ref p2sb on end
		device ref hda on
			register "pch_hda_audio_link_hda_enable" = "1"
			register "pch_hda_sdi_enable[0]" = "1"
			register "pch_hda_idisp_codec_enable" = "1"
			register "pch_hda_idisp_link_frequency" = "HDA_LINKFREQ_96MHZ"
			register "pch_hda_idisp_link_tmode" = "HDA_TMODE_8T"
		end
		device ref smbus on end
		device ref fast_spi on end
	end
end