src/mainboard/google/brya/variants/baseboard/nissa/devicetree.cb

fw_config
	field AUDIO_CONFIG 28
		option AMP_GPIO			0
		option AMP_RT5650		1
	end
	field SD_BOOT 29
		option SD_BOOT_ENABLE		0
		option SD_BOOT_DISABLE		1
	end
	field STORAGE 30 31
		option STORAGE_EMMC		0
		option STORAGE_NVME		1
		option STORAGE_UFS		2
	end
end

chip soc/intel/alderlake

	# GPE configuration
	register "pmc_gpe0_dw0" = "GPP_A"
	register "pmc_gpe0_dw1" = "GPP_H"
	register "pmc_gpe0_dw2" = "GPP_F"

	# EC host command ranges are in 0x800-0x8ff & 0x200-0x20f
	register "gen1_dec" = "0x00fc0801"
	register "gen2_dec" = "0x000c0201"
	# EC memory map range is 0x900-0x9ff
	register "gen3_dec" = "0x00fc0901"

	# S0ix enable
	register "s0ix_enable" = "1"

	# DPTF enable
	register "dptf_enable" = "1"

	register "tcc_offset" = "10"     # TCC of 90

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

	# eMMC HS400
	register "emmc_enable_hs400_mode" = "1"

	#eMMC DLL tuning parameters
	#Adding the intermediate eMMC DLL tuning override values
	#TODO SoC implementation with the finalized verified values from EV Team
	register "common_soc_config.emmc_dll.emmc_tx_cmd_cntl" = "0x505"
	register "common_soc_config.emmc_dll.emmc_tx_data_cntl1" = "0x909"
	register "common_soc_config.emmc_dll.emmc_tx_data_cntl2" = "0x1C2A2828"
	register "common_soc_config.emmc_dll.emmc_rx_cmd_data_cntl1" = "0x1C1B1D3C"
	register "common_soc_config.emmc_dll.emmc_rx_cmd_data_cntl2" = "0x10049"
	register "common_soc_config.emmc_dll.emmc_rx_strobe_cntl" = "0x11515"

	register "usb2_ports[0]" = "USB2_PORT_TYPE_C(OC_SKIP)"	# USB2_C0
	register "usb2_ports[1]" = "USB2_PORT_TYPE_C(OC_SKIP)"	# USB2_C1
	register "usb2_ports[2]" = "USB2_PORT_MID(OC_SKIP)"	# USB2_A0
	register "usb2_ports[3]" = "USB2_PORT_MID(OC_SKIP)"	# USB2_A1
	register "usb2_ports[5]" = "USB2_PORT_MID(OC_SKIP)"	# M.2 Camera

	register "usb3_ports[0]" = "USB3_PORT_DEFAULT(OC_SKIP)"	# USB3/2 Type A port A0
	register "usb3_ports[1]" = "USB3_PORT_DEFAULT(OC_SKIP)"	# USB3/2 Type A port A1

	register "tcss_ports[0]" = "TCSS_PORT_DEFAULT(OC_SKIP)"
	register "tcss_ports[1]" = "TCSS_PORT_DEFAULT(OC_SKIP)"

	register "serial_io_i2c_mode" = "{
		[PchSerialIoIndexI2C0] = PchSerialIoPci,
		[PchSerialIoIndexI2C1] = PchSerialIoPci,
		[PchSerialIoIndexI2C2] = PchSerialIoPci,
		[PchSerialIoIndexI2C3] = PchSerialIoPci,
		[PchSerialIoIndexI2C4] = PchSerialIoDisabled,
		[PchSerialIoIndexI2C5] = PchSerialIoPci,
	}"

	register "serial_io_gspi_mode" = "{
		[PchSerialIoIndexGSPI0] = PchSerialIoDisabled,
		[PchSerialIoIndexGSPI1] = PchSerialIoDisabled,
	}"

	register "serial_io_uart_mode" = "{
		[PchSerialIoIndexUART0] = PchSerialIoPci,
		[PchSerialIoIndexUART1] = PchSerialIoDisabled,
		[PchSerialIoIndexUART2] = PchSerialIoDisabled,
	}"

	# HD Audio
	register "pch_hda_dsp_enable" = "1"
	register "pch_hda_idisp_link_tmode" = "HDA_TMODE_8T"
	register "pch_hda_idisp_link_frequency" = "HDA_LINKFREQ_96MHZ"
	register "pch_hda_idisp_codec_enable" = "1"

	# FIXME: To be enabled in future based on PNP impact data.
	# Disable Package C-state demotion for nissa baseboard.
	register "disable_package_c_state_demotion" = "1"

	# Intel Common SoC Config
	#+-------------------+---------------------------+
	#| Field             |  Value                    |
	#+-------------------+---------------------------+
	#| I2C0              | TPM. Early init is        |
	#|                   | required to set up a BAR  |
	#|                   | for TPM communication     |
	#| I2C1              | Touchscreen               |
	#| I2C2              | Sub-board(PSensor)/WCAM   |
	#| I2C3              | Audio                     |
	#| I2C5              | Trackpad                  |
	#+-------------------+---------------------------+
	register "common_soc_config" = "{
		.i2c[0] = {
			.early_init = 1,
			.speed = I2C_SPEED_FAST_PLUS,
			.speed_config[0] = {
				.speed = I2C_SPEED_FAST_PLUS,
				.scl_lcnt = 55,
				.scl_hcnt = 30,
				.sda_hold = 7,
			}
		},
		.i2c[1] = {
			.speed = I2C_SPEED_FAST,
			.speed_config[0] = {
				.speed = I2C_SPEED_FAST,
				.scl_lcnt = 158,
				.scl_hcnt = 79,
				.sda_hold = 7,
			}
		},
		.i2c[2] = {
			.speed = I2C_SPEED_FAST,
			.speed_config[0] = {
				.speed = I2C_SPEED_FAST,
				.scl_lcnt = 158,
				.scl_hcnt = 79,
				.sda_hold = 7,
			}
		},
		.i2c[3] = {
			.speed = I2C_SPEED_FAST,
			.speed_config[0] = {
				.speed = I2C_SPEED_FAST,
				.scl_lcnt = 158,
				.scl_hcnt = 79,
				.sda_hold = 7,
			}
		},
		.i2c[5] = {
			.speed = I2C_SPEED_FAST,
			.speed_config[0] = {
				.speed = I2C_SPEED_FAST,
				.scl_lcnt = 158,
				.scl_hcnt = 79,
				.sda_hold = 7,
			}
		},
	}"

	device domain 0 on
		# The timing values can be derived from datasheet of display panel
		# You can use EDID string to identify the type of display on the board
		# use below command to get display info from EDID
		# strings /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/edid

		# refer to display PRM document (Volume 2b: Command Reference: Registers)
		# for more info on display control registers
		# https://01.org/linuxgraphics/documentation/hardware-specification-prms
		#+-----------------------------+---------------------------------------+-----+
		#| Intel docs                  | devicetree.cb                         | eDP |
		#+-----------------------------+---------------------------------------+-----+
		#| Power up delay              | `gpu_panel_power_up_delay`            | T3  |
		#+-----------------------------+---------------------------------------+-----+
		#| Power on to backlight on    | `gpu_panel_power_backlight_on_delay`  | T7  |
		#+-----------------------------+---------------------------------------+-----+
		#| Power Down delay            | `gpu_panel_power_down_delay`          | T10 |
		#+-----------------------------+---------------------------------------+-----+
		#| Backlight off to power down | `gpu_panel_power_backlight_off_delay` | T9  |
		#+-----------------------------+---------------------------------------+-----+
		#| Power Cycle Delay           | `gpu_panel_power_cycle_delay`         | T12 |
		#+-----------------------------+---------------------------------------+-----+
		device ref igpu on
			register "panel_cfg" = "{
			    .up_delay_ms = 200,
			    .down_delay_ms = 50,
			    .cycle_delay_ms = 500,
			    .backlight_on_delay_ms = 1,
			    .backlight_off_delay_ms = 200,
			    .backlight_pwm_hz = 200,
			}"
		end
		device ref dtt on end
		device ref tcss_xhci on end
		device ref xhci on end
		device ref shared_sram on end
		device ref cnvi_wifi on
			chip drivers/wifi/generic
				register "wake" = "GPE0_PME_B0"
				register "add_acpi_dma_property" = "true"
				device generic 0 on end
			end
		end
		device ref i2c0 on
			chip drivers/i2c/tpm
				register "hid" = ""GOOG0005""
				register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_A13_IRQ)"
				device i2c 50 on end
			end
		end
		device ref heci1 on end
		device ref emmc on end
		device ref pcie_rp7 on
			# Enable SD Card PCIE 7 using clk 3
			register "pch_pcie_rp[PCH_RP(7)]" = "{
				.clk_src = 3,
				.clk_req = 3,
				.flags = PCIE_RP_HOTPLUG | PCIE_RP_LTR | PCIE_RP_AER,
			}"
			chip soc/intel/common/block/pcie/rtd3
				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_H13)"
				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_H12)"
				register "srcclk_pin" = "3"
				device generic 0 on end
			end
		end	#PCIE7 SD card
		device ref uart0 on end
		device ref pch_espi on
			chip ec/google/chromeec
				device pnp 0c09.0 on end
			end
		end
		device ref hda on end
	end
end