diff --git a/src/mainboard/google/skyrim/variants/crystaldrift/overridetree.cb b/src/mainboard/google/skyrim/variants/crystaldrift/overridetree.cb
index 7a56f93759..60461c8447 100644
--- a/src/mainboard/google/skyrim/variants/crystaldrift/overridetree.cb
+++ b/src/mainboard/google/skyrim/variants/crystaldrift/overridetree.cb
@@ -1,5 +1,130 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
+fw_config
+	field FORM_FACTOR 0
+		option FORM_FACTOR_CLAMSHELL 0
+	end
+	field FP 1
+		option FP_ABSENT 1
+	end
+	field WLAN 2 3
+		option WLAN_MT7921LE 0
+	end
+	field WWAN 4 5
+		option WWAN_DIASABLED 0
+	end
+	field IO_DB 6 7
+		option IO_DB_A1_None_C1_ANX7493QN 1
+	end
+	field AUDIO_DB 8 9
+		option AUDIO_DB_C_ALC5682I_A_ALC1019 1
+	end
+end
 
 chip soc/amd/mendocino
-	device domain 0 on end
+	device domain 0 on
+		device ref gpp_bridge_a on  # Internal GPP Bridge 0 to Bus A
+			device ref xhci_1 on # XHCI1 controller
+				chip drivers/usb/acpi
+					device ref xhci_1_root_hub on # XHCI1 root hub
+						chip drivers/usb/acpi
+							device ref usb3_port3 on # USB 3.1 port3
+								chip drivers/usb/hub
+									register "desc" = ""USB Hub""
+									register "name" = ""RTS5414E""
+									register "port_count" = "4"
+									device usb 0.0 on # RTS5414E USB3 hub
+										chip drivers/usb/acpi
+											register "desc" = ""USB3 Type-A Port A0 (MLB)""
+											register "type" = "UPC_TYPE_USB3_A"
+											register "use_custom_pld" = "true"
+											register "custom_pld" = "ACPI_PLD_TYPE_A(LEFT, RIGHT, ACPI_PLD_GROUP(2, 2))"
+											device usb 3.0 on end
+										end
+										chip drivers/usb/acpi
+											register "desc" = ""USB3 Type-A Port A1 (DB)""
+											register "type" = "UPC_TYPE_USB3_A"
+											register "use_custom_pld" = "true"
+											register "custom_pld" = "ACPI_PLD_TYPE_A(RIGHT, CENTER, ACPI_PLD_GROUP(3, 1))"
+											device usb 3.2 on end
+										end
+									end # RTS5414E USB3 hub
+								end
+							end # USB 3.1 port3
+						end
+						chip drivers/usb/acpi
+							device ref usb2_port3 on # USB 2 port3
+								chip drivers/usb/hub
+									register "desc" = ""USB Hub""
+									register "name" = ""RTS5414E""
+									register "port_count" = "4"
+									device usb 0.0 on # RTS5414E USB2 hub
+										chip drivers/usb/acpi
+											register "desc" = ""USB2 Type-A Port A0 (MLB)""
+											register "type" = "UPC_TYPE_USB3_A"
+											register "use_custom_pld" = "true"
+											register "custom_pld" = "ACPI_PLD_TYPE_A(LEFT, RIGHT, ACPI_PLD_GROUP(2, 2))"
+											device usb 2.0 on end
+										end
+										chip drivers/usb/acpi
+											register "desc" = ""USB2 Type-A Port A1 (DB)""
+											register "type" = "UPC_TYPE_USB3_A"
+											register "use_custom_pld" = "true"
+											register "custom_pld" = "ACPI_PLD_TYPE_A(RIGHT, CENTER, ACPI_PLD_GROUP(3, 1))"
+											device usb 2.2 on end
+										end
+									end # RTS5414E USB2 hub
+								end
+							end # USB 2 port3
+						end
+					end # XHCI1 root hub
+				end
+			end # XHCI1 controller
+		end # Internal GPP Bridge 0 to Bus A
+	end
+
+	device ref i2c_0 on
+		chip drivers/i2c/hid
+			register "generic.hid" = ""PIXA2635""
+			register "generic.desc" = ""PIXA Touchpad""
+			register "generic.irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPIO_40)"
+			#register "generic.irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_40)"
+			register "generic.wake" = "GEVENT_20"
+			register "generic.detect" = "1"
+			register "hid_desc_reg_offset" = "0x01"
+			device i2c 15 on end
+		end
+	end # I2C0
+
+	device ref i2c_2 on
+		chip drivers/i2c/generic
+			register "hid" = ""RTL5682""
+			register "name" = ""RT58""
+			register "desc" = ""Realtek RT5682""
+			register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_BOTH(GPIO_90)"
+			register "property_count" = "1"
+			register "property_list[0].type" = "ACPI_DP_TYPE_INTEGER"
+			register "property_list[0].name" = ""realtek,jd-src""
+			register "property_list[0].integer" = "1"
+			device i2c 1a on
+				probe AUDIO_DB AUDIO_DB_C_ALC5682I_A_ALC1019
+			end
+		end
+		chip drivers/i2c/generic
+			register "hid" = ""10EC1019""
+			register "desc" = ""Realtek SPK AMP R""
+			register "uid" = "1"
+			device i2c 29 on
+				probe AUDIO_DB AUDIO_DB_C_ALC5682I_A_ALC1019
+			end
+		end
+		chip drivers/i2c/generic
+			register "hid" = ""10EC1019""
+			register "desc" = ""Realtek SPK AMP L""
+			register "uid" = "2"
+			register "probed" = "1"
+			device i2c 2a on
+				probe AUDIO_DB AUDIO_DB_C_ALC5682I_A_ALC1019
+			end
+		end
+	end # I2C2
 end	# chip soc/amd/mendocino