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

# SPDX-License-Identifier: GPL-2.0-or-later
chip soc/amd/mendocino

	# eSPI Configuration
	register "common_config.espi_config" = "{
		.std_io_decode_bitmap = ESPI_DECODE_IO_0x80_EN | ESPI_DECODE_IO_0X60_0X64_EN,
		.generic_io_range[0] = {
			.base = 0x62,
			/*
			 * Only 0x62 and 0x66 are required. But, this is not supported by
			 * standard IO decodes and there are only 4 generic I/O windows
			 * available. Hence, open a window from 0x62-0x67.
			 */
			.size = 5,
		},
		.generic_io_range[1] = {
			.base = 0x800,   /* EC_HOST_CMD_REGION0 */
			.size = 256,     /* EC_HOST_CMD_REGION_SIZE * 2 */
		},
		.generic_io_range[2] = {
			.base = 0x900,   /* EC_LPC_ADDR_MEMMAP */
			.size = 255,     /* EC_MEMMAP_SIZE */
		},
		.generic_io_range[3] = {
			.base = 0x200,   /* EC_LPC_ADDR_HOST_DATA */
			.size = 8,       /* 0x200 - 0x207 */
		},

		.io_mode = ESPI_IO_MODE_QUAD,
		.op_freq_mhz = ESPI_OP_FREQ_16_MHZ,
		.crc_check_enable = 1,
		.alert_pin = ESPI_ALERT_PIN_OPEN_DRAIN,
		.periph_ch_en = 1,
		.vw_ch_en = 1,
		.oob_ch_en = 0,
		.flash_ch_en = 0,

		.vw_irq_polarity = ESPI_VW_IRQ_LEVEL_HIGH(1),
	}"

	register "i2c_scl_reset" = "GPIO_I2C0_SCL | GPIO_I2C1_SCL |
					GPIO_I2C2_SCL | GPIO_I2C3_SCL"

	# I2C Pad Control RX Select Configuration
	register "i2c_pad[0].rx_level" = "I2C_PAD_RX_1_8V" # Touchpad
	register "i2c_pad[1].rx_level" = "I2C_PAD_RX_1_8V" # Touchscreen
	register "i2c_pad[2].rx_level" = "I2C_PAD_RX_1_8V" # Audio/SAR
	register "i2c_pad[3].rx_level" = "I2C_PAD_RX_1_8V" # GSC

	# I2C Config
	#+-------------------+----------------------------+
	#| Field             |  Value                     |
	#+-------------------+----------------------------+
	#| I2C0              | Trackpad                   |
	#| I2C1              | Touchscreen                |
	#| I2C2              | Speaker, Codec, P-SAR, USB |
	#| I2C3              | D2 TPM                     |
	#+-------------------+----------------------------+
	register "i2c[0]" = "{
		.speed = I2C_SPEED_FAST,
	}"

	register "i2c[1]" = "{
		.speed = I2C_SPEED_FAST,
	}"

	register "i2c[2]" = "{
		.speed = I2C_SPEED_FAST,
	}"

	register "i2c[3]" = "{
		.speed = I2C_SPEED_FAST,
		.early_init = true,
	}"

	# general purpose PCIe clock output configuration
	register "gpp_clk_config[0]" = "GPP_CLK_REQ"
	register "gpp_clk_config[1]" = "GPP_CLK_REQ"
	register "gpp_clk_config[2]" = "GPP_CLK_REQ"
	register "gpp_clk_config[3]" = "GPP_CLK_OFF"

	# PSPP doesn't save any power on this platform
	register "pspp_policy" = "DXIO_PSPP_DISABLED"

	register "s0ix_enable" = "true"

	device domain 0 on
		device ref lpc_bridge on
			chip ec/google/chromeec
				device pnp 0c09.0 alias chrome_ec on end
			end
		end
		device ref gpp_bridge_0 on # WLAN
			chip drivers/pcie/generic
				register "wake_gpe" = "GEVENT_8"
				register "wake_deepest" = "ACPI_S0"
				register "name" = ""WLAN""
				device pci 00.0 on end
			end
		end
		device ref iommu on end
		device ref gpp_bridge_1 on end # SD
		device ref gpp_bridge_2 on
			# Required so the NVMe gets placed into D3 when entering S0i3.
			chip drivers/pcie/rtd3/device
				register "name" = ""NVME""
				device pci 00.0 on end
			end
		end # NVMe

		device ref gpp_bridge_a on  # Internal GPP Bridge 0 to Bus A
			device ref gfx on end # Internal GPU (GFX)
			device ref gfx_hda on end # Display HD Audio Controller (GFXAZ)
			device ref crypto on end # Crypto Coprocessor
			device ref xhci_0 on # USB 3.1 (USB0)
				chip drivers/usb/acpi
					device ref xhci_0_root_hub on
						chip drivers/usb/acpi
							register "desc" = ""USB3 Type-C Port C0 (MLB)""
							register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
							register "use_custom_pld" = "true"
							register "custom_pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(1, 1))"
							device ref usb3_port0 on end
						end
						chip drivers/usb/acpi
							register "desc" = ""USB2 Type-C Port C0 (MLB)""
							register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
                                                        register "use_custom_pld" = "true"
                                                        register "custom_pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(1, 1))"
							device ref usb2_port0 on end
						end
						chip drivers/usb/acpi
							register "desc" = ""User-Facing Camera""
							register "type" = "UPC_TYPE_INTERNAL"
							device ref usb2_port1 on end
						end
					end
				end
			end
			device ref xhci_1 on # USB 3.1 (USB1)
				chip drivers/usb/acpi
					device ref xhci_1_root_hub on
						chip drivers/usb/acpi
							register "desc" = ""USB3 Type-C Port C1 (DB)""
							register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
                                                        register "use_custom_pld" = "true"
                                                        register "custom_pld" = "ACPI_PLD_TYPE_C(RIGHT, RIGHT, ACPI_PLD_GROUP(2, 1))"
							device ref usb3_port2 on end
						end
						chip drivers/usb/acpi
							register "desc" = ""USB2 Type-C Port C1 (DB)""
							register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
                                                        register "use_custom_pld" = "true"
                                                        register "custom_pld" = "ACPI_PLD_TYPE_C(RIGHT, RIGHT, ACPI_PLD_GROUP(2, 1))"
							device ref usb2_port2 on end
						end
						chip drivers/usb/acpi
							register "desc" = ""World-Facing Camera""
							register "type" = "UPC_TYPE_INTERNAL"
							device ref usb2_port4 on end
						end
					end
				end
			end
			device ref acp on end # Audio Processor (ACP)
			device ref mp2 on end # Sensor Fusion Hub (MP2)
		end
		device ref gpp_bridge_c on  # Internal GPP Bridge 2 to Bus C
			device ref xhci_2 on # USB 2.0 (USB2)
				chip drivers/usb/acpi
					register "type" = "UPC_TYPE_HUB"
					device usb 0.0 alias xhci_2_root_hub on
						chip drivers/usb/acpi
							register "desc" = ""Bluetooth""
							register "type" = "UPC_TYPE_INTERNAL"
							register "has_power_resource" = "true"
							register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPIO_10)"
							register "enable_delay_ms" = "500"
							register "enable_off_delay_ms" = "200"
							register "use_gpio_for_status" = "true"
							device usb 2.0 alias usb2_port5 on end
						end
					end
				end
			end
		end
	end # domain
	device ref uart_0 on end # UART0
	device ref i2c_0 on end
	device ref i2c_1 on end
	device ref i2c_2 on end
	device ref i2c_3 on
		chip drivers/i2c/tpm
			register "hid" = ""GOOG0005""
			register "desc" = ""Ti50 TPM""
			register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_18)"
			device i2c 50 alias ti50 on end
		end
	end

	# EC is configured to power off the system at 105C, so add a two degree
	# buffer so the OS can gracefully shutdown.
	#
	# EC is configured to assert PROCHOT at 100C. That drastically lowers
	# performance. Instead we will tell the OS to start throttling the CPUs
	# at 95C in hopes that we don't hit the PROCHOT limit.
	#
	# We set use_acpi1_thermal_zone_scope because the Chrome ec.asl
	# performs a `Notify` to the `_\TZ` scope.
	chip drivers/acpi/thermal_zone
		register "description" = ""Charger""
		use chrome_ec as temperature_controller
		register "sensor_id" = "0"
		register "polling_period" = "10"
		register "critical_temperature" = "103"
		register "passive_config.temperature" = "95"
		register "use_acpi1_thermal_zone_scope" = "true"

		device generic 0 on end
	end
	chip drivers/acpi/thermal_zone
		register "description" = ""Memory""
		use chrome_ec as temperature_controller
		register "sensor_id" = "1"
		register "polling_period" = "10"
		register "critical_temperature" = "103"
		register "passive_config.temperature" = "95"
		register "use_acpi1_thermal_zone_scope" = "true"

		device generic 1 on end
	end
	chip drivers/acpi/thermal_zone
		register "description" = ""CPU""
		use chrome_ec as temperature_controller
		register "sensor_id" = "2"
		register "polling_period" = "10"
		register "critical_temperature" = "103"
		register "passive_config.temperature" = "95"
		register "use_acpi1_thermal_zone_scope" = "true"

		device generic 2 on end
	end
	chip drivers/acpi/thermal_zone
		register "description" = ""SOC""
		use chrome_ec as temperature_controller
		register "sensor_id" = "3"
		register "polling_period" = "10"
		register "critical_temperature" = "103"
		register "passive_config.temperature" = "95"
		register "use_acpi1_thermal_zone_scope" = "true"

		device generic 3 on end
	end

	# DPTC: Refer the spec "FT6 Infrastructure Roadmap"#57316
	# Set system_configuration to 4 for 15W
	register "system_configuration" = "4"
	# Normal
	register "slow_ppt_limit_mW"                     = "25000"
	register "fast_ppt_limit_mW"                     = "30000"
	register "slow_ppt_time_constant_s"              = "5"
	register "stapm_time_constant_s"                 = "275"
	register "thermctl_limit_degreeC"                = "100"
	register "vrm_current_limit_mA"                  = "28000"
	register "vrm_maximum_current_limit_mA"          = "50000"
	register "vrm_soc_current_limit_mA"              = "10000"
	# Throttle (e.g., Low/No Battery)
	register "vrm_current_limit_throttle_mA"         = "20000"
	register "vrm_maximum_current_limit_throttle_mA" = "20000"
	register "vrm_soc_current_limit_throttle_mA"     = "10000"
end	# chip soc/amd/mendocino