src/mainboard/google/reef/variants/snappy/devicetree.cb

chip soc/intel/apollolake

	device cpu_cluster 0 on
		device lapic 0 on end
	end

	register "pcie_rp_clkreq_pin[0]" = "0"    # wifi/bt
	# Disable unused clkreq of PCIe root ports
	register "pcie_rp_clkreq_pin[1]" = "CLKREQ_DISABLED"
	register "pcie_rp_clkreq_pin[2]" = "CLKREQ_DISABLED"
	register "pcie_rp_clkreq_pin[3]" = "CLKREQ_DISABLED"
	register "pcie_rp_clkreq_pin[4]" = "CLKREQ_DISABLED"
	register "pcie_rp_clkreq_pin[5]" = "CLKREQ_DISABLED"

	# GPIO for PERST_0
	# If the Board has PERST_0 signal, assign the GPIO
	# If the Board does not have PERST_0, assign GPIO_PRT0_UDEF
	register "prt0_gpio" = "GPIO_122"

	# GPIO for SD card detect
	register "sdcard_cd_gpio" = "GPIO_177"

	# EMMC TX DATA Delay 1
	# Refer to EDS-Vol2-22.3.
	# [14:8] steps of delay for HS400, each 125ps.
	# [6:0] steps of delay for SDR104/HS200, each 125ps.
	register "emmc_tx_data_cntl1" = "0x0C16"

	# EMMC TX DATA Delay 2
	# Refer to EDS-Vol2-22.3.
	# [30:24] steps of delay for SDR50, each 125ps.
	# [22:16] steps of delay for DDR50, each 125ps.
	# [14:8] steps of delay for SDR25/HS50, each 125ps.
	# [6:0] steps of delay for SDR12, each 125ps.
	register "emmc_tx_data_cntl2" = "0x28162828"

	# EMMC RX CMD/DATA Delay 1
	# Refer to EDS-Vol2-22.3.
	# [30:24] steps of delay for SDR50, each 125ps.
	# [22:16] steps of delay for DDR50, each 125ps.
	# [14:8] steps of delay for SDR25/HS50, each 125ps.
	# [6:0] steps of delay for SDR12, each 125ps.
	register "emmc_rx_cmd_data_cntl1" = "0x00181717"

	# EMMC RX CMD/DATA Delay 2
	# Refer to EDS-Vol2-22.3.
	# [17:16] stands for Rx Clock before Output Buffer
	# [14:8] steps of delay for Auto Tuning Mode, each 125ps.
	# [6:0] steps of delay for HS200, each 125ps.
	register "emmc_rx_cmd_data_cntl2" = "0x10008"

	# Enable DPTF
	register "dptf_enable" = "1"

	# PL1 override 12 W: the energy calculation is wrong with the
	# current VR solution. Experiments show that SoC TDP max (6W) can
	# be reached when RAPL PL1 is set to 12W.
	# Set RAPL PL2 to 15W.
	register "power_limits_config" = "{
		.tdp_pl1_override = 12,
		.tdp_pl2_override = 15,
	}"

	# Enable Audio Clock and Power gating
	register "hdaudio_clk_gate_enable" = "1"
	register "hdaudio_pwr_gate_enable" = "1"
	register "hdaudio_bios_config_lockdown" = "1"

	# Enable lpss s0ix
	register "lpss_s0ix_enable" = "1"

	# GPE configuration
	# Note that GPE events called out in ASL code rely on this
	# route, i.e., if this route changes then the affected GPE
	# offset bits also need to be changed. This sets the PMC register
	# GPE_CFG fields.
	register "gpe0_dw1" = "PMC_GPE_N_31_0"
	register "gpe0_dw2" = "PMC_GPE_N_63_32"
	register "gpe0_dw3" = "PMC_GPE_SW_31_0"

	# Intel Common SoC Config
	#+-------------------+---------------------------+
	#| Field             |  Value                    |
	#+-------------------+---------------------------+
	#| I2C0              | Audio                     |
	#| I2C2              | TPM                       |
	#| I2C3              | Touchscreen               |
	#| I2C4              | Trackpad                  |
	#| I2C5              | Digitizer                 |
	#+-------------------+---------------------------+
	register "common_soc_config" = "{
		.i2c[0] = {
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 44,
			.fall_time_ns = 22,
		},
		.i2c[2] = {
			.early_init = 1,
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 40,
			.fall_time_ns = 20,
		},
		.i2c[3] = {
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 70,
			.fall_time_ns = 164,
		},
		.i2c[4] = {
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 20,
			.fall_time_ns = 164,
		},
		.i2c[5] = {
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 152,
			.fall_time_ns = 30,
		},
	}"

	# Minimum SLP S3 assertion width 28ms.
	register "slp_s3_assertion_width_usecs" = "28000"

	# Override USB2 PER PORT register (PORT 1)
	register "usb2eye[1]" = "{
		.Usb20PerPortPeTxiSet = 7,
		.Usb20PerPortTxiSet = 0,
	}"

	device domain 0 on
		device pci 00.0 on  end	# - Host Bridge
		device pci 00.1 on  end	# - DPTF
		device pci 00.2 on  end	# - NPK
		device pci 02.0 on	# - Gen
			register "gfx" = "GMA_DEFAULT_PANEL(0)"
		end
		device pci 03.0 on  end	# - Iunit
		device pci 0d.0 on  end	# - P2SB
		device pci 0d.1 on  end	# - PMC
		device pci 0d.2 on  end	# - SPI
		device pci 0d.3 on  end	# - Shared SRAM
		device pci 0e.0 on	# - Audio
			chip drivers/generic/max98357a
				register "hid" = ""MX98357A""
				register "sdmode_gpio" =  "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_76)"
				register "sdmode_delay" = "5"
				device generic 0 on end
			end
		end
		device pci 0f.0 on  end	# - CSE
		device pci 11.0 off end	# - ISH
		device pci 12.0 off end	# - SATA
		device pci 13.0 off end	# - Root Port 2 - PCIe-A 0
		device pci 13.1 off end	# - Root Port 3 - PCIe-A 1
		device pci 13.2 off end	# - Root Port 4 - PCIe-A 2
		device pci 13.3 off end	# - Root Port 5 - PCIe-A 3
		device pci 14.0 on
			chip drivers/wifi/generic
				register "wake" = "GPE0_DW3_00"
				device pci 00.0 on end
			end
		end	# - Root Port 0 - PCIe-B 0 - Wifi
		device pci 14.1 off end	# - Root Port 1 - PCIe-B 1
		device pci 15.0 on  end	# - XHCI
		device pci 15.1 off end # - XDCI
		device pci 16.0 on	# - I2C 0
			chip drivers/i2c/da7219
				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_116_IRQ)"
				register "btn_cfg" = "50"
				register "mic_det_thr" = "500"
				register "jack_ins_deb" = "20"
				register "jack_det_rate" = ""32ms_64ms""
				register "jack_rem_deb" = "1"
				register "a_d_btn_thr" = "0xa"
				register "d_b_btn_thr" = "0x16"
				register "b_c_btn_thr" = "0x21"
				register "c_mic_btn_thr" = "0x3e"
				register "btn_avg" = "4"
				register "adc_1bit_rpt" = "1"
				register "micbias_lvl" = "2600"
				register "mic_amp_in_sel" = ""diff""
				device i2c 1a on end
			end
		end
		device pci 16.1 on  end	# - I2C 1
		device pci 16.2 on
			chip drivers/i2c/tpm
				register "hid" = ""GOOG0005""
				register "irq" = "ACPI_IRQ_EDGE_LOW(GPIO_28_IRQ)"
				device i2c 50 on end
			end
		end	# - I2C 2
		device pci 16.3 on
			chip drivers/i2c/generic
				register "hid" = ""ELAN0001""
				register "desc" = ""ELAN Touchscreen""
				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_21_IRQ)"
				register "probed" = "1"
				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_36)"
				register "reset_delay_ms" = "20"
				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_152)"
				register "enable_delay_ms" = "1"
				register "has_power_resource" = "1"
				device i2c 10 on end
			end
			chip drivers/i2c/generic
				register "hid" = ""MLFS0000""
				register "desc" = ""Melfas Touchscreen""
				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_21_IRQ)"
				register "probed" = "1"
				# Melfas TS IC doesn't have reset pin design, current FW also not
				# declare "ce-gpios" in ACPI _DSD to let Melfas TS driver to know
				# "enable gpio#152 (VTSP) but because of kernel bug & Melfas TS driver
				# is unable to separate clear power sequence path for certain
				# TS IC (ex: MIT-410) and kernel will still obstain GPIO from _CRS
				# by index "0" since no matched "gpio" in ACPI _DSD.
				# coreboot needs to have "dummy pin" as workaround  in order to let
				# kernel driver grab "useless" GPIO to prevent Melfas TS driver cut
				# power by driver itself.
				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_36)"
				register "reset_delay_ms" = "1"
				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_152)"
				register "enable_delay_ms" = "5"
				register "has_power_resource" = "1"
				device i2c 34 on end
			end
			chip drivers/i2c/generic
				register "hid" = ""RAYD0001""
				register "desc" = ""Raydium Touchscreen""
				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_21_IRQ)"
				register "probed" = "1"
				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_36)"
				register "reset_delay_ms" = "1"
				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_152)"
				register "enable_delay_ms" = "50"
				register "has_power_resource" = "1"
				device i2c 39 on end
			end
			chip drivers/i2c/hid
				register "generic.hid" = ""WDHT0002""
				register "generic.desc" = ""WDT Touchscreen""
				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_21_IRQ)"
				register "generic.probed" = "1"
				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_36)"
				register "generic.reset_delay_ms" = "130"
				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_152)"
				register "generic.enable_delay_ms" = "1"
				register "generic.has_power_resource" = "1"
				register "generic.disable_gpio_export_in_crs" = "1"
				register "hid_desc_reg_offset" = "0x20"
				device i2c 2c on end
			end
			chip drivers/i2c/hid
				register "generic.hid" = ""GTCH7503""
				register "generic.desc" = ""G2TOUCH Touchscreen""
				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_21_IRQ)"
				register "generic.probed" = "1"
				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_36)"
				register "generic.reset_delay_ms" = "50"
				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_152)"
				register "generic.enable_delay_ms" = "1"
				register "generic.has_power_resource" = "1"
				register "generic.disable_gpio_export_in_crs" = "1"
				register "hid_desc_reg_offset" = "0x01"
				device i2c 40 on end
			end
		end	# - I2C 3
		device pci 17.0 on
			chip drivers/i2c/generic
				register "hid" = ""ELAN0000""
				register "desc" = ""ELAN Touchpad""
				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_18_IRQ)"
				register "wake" = "GPE0_DW1_15"
				register "detect" = "1"
				device i2c 15 on end
			end
		end # - I2C 4
		device pci 17.1 on
			chip drivers/i2c/hid
				register "generic.hid" = ""WCOM50C1""
				register "generic.desc" = ""WCOM Digitizer""
				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_13_IRQ)"
				register "hid_desc_reg_offset" = "0x1"
				device i2c 0x9 on end
			end
		end	# - I2C 5
		device pci 17.2 off end	# - I2C 6
		device pci 17.3 off end	# - I2C 7
		device pci 18.0 on  end	# - UART 0
		device pci 18.1 on  end	# - UART 1
		device pci 18.2 on  end	# - UART 2
		device pci 18.3 off end	# - UART 3
		device pci 19.0 on  end	# - SPI 0
		device pci 19.1 off end	# - SPI 1
		device pci 19.2 off end	# - SPI 2
		device pci 1a.0 on  end	# - PWM
		device pci 1b.0 on  end	# - SDCARD
		device pci 1c.0 on  end	# - eMMC
		device pci 1e.0 off end	# - SDIO
		device pci 1f.0 on	# - LPC
			chip ec/google/chromeec
				device pnp 0c09.0 on end
			end
		end
		device pci 1f.1 on  end	# - SMBUS
	end
end