src/mainboard/google/octopus/variants/baseboard/devicetree.cb

chip soc/intel/apollolake
	device cpu_cluster 0 on
		device lapic 0 on end
	end

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

	# Set de-emphasis to disabled for PCIE WiFI (Thunderpeak)
	# as it is required for detection
	register "pcie_rp_deemphasis_enable[2]" = "0"
	# Set de-emphasis to default (enabled) for remaining ports
	register "pcie_rp_deemphasis_enable[0]" = "1"
	register "pcie_rp_deemphasis_enable[1]" = "1"
	register "pcie_rp_deemphasis_enable[3]" = "1"
	register "pcie_rp_deemphasis_enable[4]" = "1"
	register "pcie_rp_deemphasis_enable[5]" = "1"

	# GPIO for PERST_0 (WLAN_PE_RST)
	register "prt0_gpio" = "GPIO_164"

	# 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.
	# DW1 is used by:
	#   - GPIO_63 - H1_PCH_INT_ODL
	# DW2 is used by:
	#   - GPIO_141 - EC_PCH_WAKE_ODL
	#   - GPIO_142 - TRACKPAD_INT2_1V8_ODL
	#   - GPIO_144 - PEN_EJECT_ODL
	# DW3 is used by:
	#   - GPIO_117 - LTE_WAKE_ODL
	#   - GPIO_119 - WLAN_PCIE_WAKE_ODL
	register "gpe0_dw1" = "PMC_GPE_NW_63_32"
	register "gpe0_dw2" = "PMC_GPE_N_95_64"
	register "gpe0_dw3" = "PMC_GPE_N_63_32"

	# PL1 override 10000 mW: Due to error in the energy calculation for
	# current VR solution. Experiments show that SoC TDP max (6W) can
	# be reached when RAPL PL1 is set to 10W.
	register "tdp_pl1_override_mw" = "10000"
	# Set RAPL PL2 to 15W.
	register "tdp_pl2_override_mw" = "15000"

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

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

	# Enable DPTF
	register "dptf_enable" = "1"

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

	# Intel Common SoC Config
	#+-------------------+---------------------------+
	#| Field             |  Value                    |
	#+-------------------+---------------------------+
	#| GSPI0             | cr50 TPM. Early init is   |
	#|                   | required to set up a BAR  |
	#|                   | for TPM communication     |
	#|                   | before memory is up       |
	#| I2C0              | Digitizer                 |
	#| I2C5              | Audio                     |
	#| I2C6              | Trackpad                  |
	#| I2C7              | Touchscreen               |
	#+-------------------+---------------------------+
	register "common_soc_config" = "{
		.gspi[0] = {
			.speed_mhz = 1,
			.early_init = 1,
		},
		.i2c[0] = {
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 152,
			.fall_time_ns = 30,
		},
		.i2c[5] = {
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 104,
			.fall_time_ns = 52,
		},
		.i2c[6] = {
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 114,
			.fall_time_ns = 164,
			.data_hold_time_ns = 350,
		},
		.i2c[7] = {
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 76,
			.fall_time_ns = 164,
		},
	}"

	register "pnp_settings" = "PNP_PERF_POWER"

	device domain 0 on
		device pci 00.0 on  end	# - Host Bridge
		device pci 00.1 on  end	# - DPTF
		device pci 00.2 off end	# - NPK
		device pci 02.0 on  end	# - Gen
		device pci 03.0 on  end	# - Iunit
		chip drivers/intel/wifi
			register "wake" = "GPE0A_CNVI_PME_STS"
			device pci 0c.0 on  end	# - CNVi
		end
		device pci 0d.0 on  end	# - P2SB
		device pci 0d.1 on  end	# - PMC
		device pci 0d.2 on  end	# - Fast SPI
		device pci 0d.3 on  end	# - Shared SRAM
		device pci 0e.0 on
			chip drivers/generic/max98357a
				register "sdmode_gpio" =  "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_91)"
				register "sdmode_delay" = "5"
				device generic 0 on end
			end
		end	# - Audio
		device pci 0f.0 on  end	# - Heci1
		device pci 0f.1 on  end	# - Heci2
		device pci 0f.2 on  end	# - Heci3
		device pci 11.0 off end	# - ISH
		device pci 12.0 off end	# - SATA
		device pci 13.0 on
			chip drivers/intel/wifi
				register "wake" = "GPE0_DW3_11"
				device pci 00.0 on end
			end
		end	# - PCIe-A 0 Onboard M2 Slot(Wifi)
		device pci 13.1 off end	# - PCIe-A 1
		device pci 13.2 off end	# - PCIe-A 2
		device pci 13.3 off end	# - PCIe-A 3
		device pci 14.0 off end	# - PCIe-B 0
		device pci 14.1 off end	# - PCIe-B 1
		device pci 15.0 on
			chip drivers/usb/acpi
				register "desc" = ""Root Hub""
				register "type" = "UPC_TYPE_HUB"
				device usb 0.0 on
					chip drivers/usb/acpi
						register "desc" = ""Bluetooth""
						register "type" = "UPC_TYPE_INTERNAL"
						register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPIO_109)"
						device usb 2.2 on end
					end
					chip drivers/usb/acpi
						register "desc" = ""Bluetooth""
						register "type" = "UPC_TYPE_INTERNAL"
						register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPIO_109)"
						device usb 2.9 on end
					end
				end
			end
		end	# - XHCI
		device pci 15.1 on  end	# - XDCI
		device pci 16.0 on  end	# - I2C 0
		device pci 16.1 on  end	# - I2C 1
		device pci 16.2 off  end	# - I2C 2
		device pci 16.3 off  end	# - I2C 3
		device pci 17.0 on  end	# - I2C 4
		device pci 17.1 on  end	# - I2C 5
		device pci 17.2 on  end	# - I2C 6
		device pci 17.3 off end	# - I2C 7
		device pci 18.0 on  end	# - UART 0
		device pci 18.1 off end	# - UART 1
		device pci 18.2 on  end	# - UART 2
		device pci 18.3 off end	# - UART 3
		device pci 19.0 on
			chip drivers/spi/acpi
				register "hid" = "ACPI_DT_NAMESPACE_HID"
				register "compat_string" = ""google,cr50""
				register "irq" = "ACPI_IRQ_EDGE_LOW(GPIO_63_IRQ)"
				device spi 0 on end
			end
		end # - GSPI 0
		device pci 19.1 off end	# - SPI 1
		device pci 19.2 on  end	# - SPI 2
		device pci 1a.0 on  end	# - PWM
		device pci 1c.0 on  end	# - eMMC
		device pci 1e.0 off end	# - SDIO
		device pci 1f.0 on
			chip ec/google/chromeec
				device pnp 0c09.0 on end
			end
		end	# - ESPI
		device pci 1f.1 on  end	# - SMBUS
	end

	# FSP provides UPD interface to execute IPC command. PMIC has
	# I2C_Slave_Address (31:24): 0x5E, Register_Offset (23:16): 0x43,
	# RegOrValue (15:8): 0x2 and RegAndValue (7:0) 0xF8.
	# The register is defined as: D[7:3] RSVD, D[2:0] PWROKDELAY.
	# uint8 RegOrValue, RegAndValue, PmicReadReg
	# RegOrValue = (UINT8)((PmicPmcIpcCtrl >> 8) & 0Xff);
	# RegAndValue = (UINT8)(PmicPmcIpcCtrl & 0Xff);
	# PmicReadReg &= RegAndValue;
	# PmicReadReg |= RegOrValue;
	# PmicReadReg value will be programmed into PMIC D[2:0] PWROKDELAY field
	# and D[7:3] RSVD will not be impacted.

	# Configure PmicPmcIpcCtrl for PMC to program PMIC PCH_PWROK delay
	# from 100ms to 10ms.
	# PWROKDELAY[2:0]: 000=2.5ms, 001=5.0ms, 010=10ms, 011=15ms, 100=20ms,
	#                  101=50ms, 110=75ms, 111=100ms (default)
	register "PmicPmcIpcCtrl" = "0x5e4302f8"
end