diff --git a/src/mainboard/google/brya/Kconfig b/src/mainboard/google/brya/Kconfig
index 160d12a..732a9ea 100644
--- a/src/mainboard/google/brya/Kconfig
+++ b/src/mainboard/google/brya/Kconfig
@@ -384,6 +384,7 @@
 
 config BOARD_GOOGLE_SUNDANCE
 	select BOARD_GOOGLE_BASEBOARD_NISSA
+	select DRIVERS_GENERIC_GPIO_KEYS
 
 config BOARD_GOOGLE_QUANDISO
 	select BOARD_GOOGLE_BASEBOARD_NISSA
diff --git a/src/mainboard/google/brya/variants/sundance/overridetree.cb b/src/mainboard/google/brya/variants/sundance/overridetree.cb
index 4f2c04a..30c93e4 100644
--- a/src/mainboard/google/brya/variants/sundance/overridetree.cb
+++ b/src/mainboard/google/brya/variants/sundance/overridetree.cb
@@ -1,6 +1,346 @@
 chip soc/intel/alderlake
+	# Acoustic settings
+	register "acoustic_noise_mitigation" = "1"
+	register "slow_slew_rate[VR_DOMAIN_IA]" = "SLEW_FAST_8"
+	register "slow_slew_rate[VR_DOMAIN_GT]" = "SLEW_FAST_8"
+	register "fast_pkg_c_ramp_disable[VR_DOMAIN_IA]" = "1"
+	register "fast_pkg_c_ramp_disable[VR_DOMAIN_GT]" = "1"
+	register "PreWake" = "100"
 
-        device domain 0 on
-        end
+	register "sagv" = "SaGv_Enabled"
 
+	# EMMC Tx CMD Delay
+	# Refer to EDS-Vol2-42.3.7.
+	# [14:8] steps of delay for DDR mode, each 125ps, range: 0 - 39.
+	# [6:0] steps of delay for SDR mode, each 125ps, range: 0 - 39.
+	register "common_soc_config.emmc_dll.emmc_tx_cmd_cntl" = "0x505"
+
+	# EMMC TX DATA Delay 1
+	# Refer to EDS-Vol2-42.3.8.
+	# [14:8] steps of delay for HS400, each 125ps, range: 0 - 78.
+	# [6:0] steps of delay for SDR104/HS200, each 125ps, range: 0 - 79.
+	register "common_soc_config.emmc_dll.emmc_tx_data_cntl1" = "0x909"
+
+	# EMMC TX DATA Delay 2
+	# Refer to EDS-Vol2-42.3.9.
+	# [30:24] steps of delay for SDR50, each 125ps, range: 0 - 79.
+	# [22:16] steps of delay for DDR50, each 125ps, range: 0 - 78.
+	# [14:8] steps of delay for SDR25/HS50, each 125ps, range: 0 -79.
+	# [6:0] steps of delay for SDR12, each 125ps. Range: 0 - 79.
+	register "common_soc_config.emmc_dll.emmc_tx_data_cntl2" = "0x1C2A2828"
+
+	# EMMC RX CMD/DATA Delay 1
+	# Refer to EDS-Vol2-42.3.10.
+	# [30:24] steps of delay for SDR50, each 125ps, range: 0 - 119.
+	# [22:16] steps of delay for DDR50, each 125ps, range: 0 - 78.
+	# [14:8] steps of delay for SDR25/HS50, each 125ps, range: 0 - 119.
+	# [6:0] steps of delay for SDR12, each 125ps, range: 0 - 119.
+	register "common_soc_config.emmc_dll.emmc_rx_cmd_data_cntl1" = "0x1C1B4F1B"
+
+	# EMMC RX CMD/DATA Delay 2
+	# Refer to EDS-Vol2-42.3.12.
+	# [17:16] stands for Rx Clock before Output Buffer,
+	#         00: Rx clock after output buffer,
+	#         01: Rx clock before output buffer,
+	#         10: Automatic selection based on working mode.
+	#         11: Reserved
+	# [14:8] steps of delay for Auto Tuning Mode, each 125ps, range: 0 - 39.
+	# [6:0] steps of delay for HS200, each 125ps, range: 0 - 79.
+	register "common_soc_config.emmc_dll.emmc_rx_cmd_data_cntl2" = "0x10023"
+
+	# EMMC Rx Strobe Delay
+	# Refer to EDS-Vol2-42.3.11.
+	# [14:8] Rx Strobe Delay DLL 1(HS400 Mode), each 125ps, range: 0 - 39.
+	# [6:0] Rx Strobe Delay DLL 2(HS400 Mode), each 125ps, range: 0 - 39.
+	register "common_soc_config.emmc_dll.emmc_rx_strobe_cntl" = "0x11515"
+
+	# SOC Aux orientation override:
+	# This is a bitfield that corresponds to up to 4 TCSS ports.
+	# Bits (0,1) allocated for TCSS Port1 configuration and Bits (2,3)for TCSS Port2.
+	# TcssAuxOri = 0101b
+	# Bit0,Bit2 set to "1" indicates no retimer on USBC Ports
+	# Bit1,Bit3 set to "0" indicates Aux lines are not swapped on the
+	# motherboard to USBC connector
+	register "tcss_aux_ori" = "5"
+
+	register "typec_aux_bias_pads[0]" = "{.pad_auxp_dc = GPP_E22, .pad_auxn_dc = GPP_E23}"
+	register "typec_aux_bias_pads[1]" = "{.pad_auxp_dc = GPP_A21, .pad_auxn_dc = GPP_A22}"
+
+	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[4]" = "USB2_PORT_MID(OC_SKIP)"	# WWAN
+	register "usb2_ports[6]" = "USB2_PORT_MID(OC_SKIP)"	# WFC Camera
+	register "usb2_ports[7]" = "USB2_PORT_MID(OC_SKIP)"	# Bluetooth port for PCIe WLAN
+	register "usb2_ports[9]" = "USB2_PORT_MID(OC_SKIP)"	# Bluetooth port for CNVi WLAN
+
+	register "usb3_ports[2]" = "USB3_PORT_DEFAULT(OC_SKIP)"	# USB3 port for WWAN
+
+	# Configure external V1P05/Vnn/VnnSx Rails for Sundance
+	register "ext_fivr_settings" = "{
+		.configure_ext_fivr = 1,
+		.v1p05_enable_bitmap = FIVR_ENABLE_ALL_SX & ~FIVR_ENABLE_S0,
+		.vnn_enable_bitmap = FIVR_ENABLE_ALL_SX,
+		.vnn_sx_enable_bitmap = FIVR_ENABLE_ALL_SX,
+		.v1p05_supported_voltage_bitmap = FIVR_VOLTAGE_NORMAL,
+		.vnn_supported_voltage_bitmap = FIVR_VOLTAGE_MIN_ACTIVE,
+		.v1p05_voltage_mv = 1050,
+		.vnn_voltage_mv = 780,
+		.vnn_sx_voltage_mv = 1050,
+		.v1p05_icc_max_ma = 500,
+		.vnn_icc_max_ma = 500,
+	}"
+
+	# Intel Common SoC Config
+	#+-------------------+---------------------------+
+	#| Field             |  Value                    |
+	#+-------------------+---------------------------+
+	#| I2C0              | TPM. Early init is        |
+	#|                   | required to set up a BAR  |
+	#|                   | for TPM communication     |
+	#| I2C1              | Touchscreen               |
+	#| 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 = 157,
+				.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
+		device ref i2c1 on
+			chip drivers/i2c/hid
+				register "generic.hid" = ""ELAN901C""
+				register "generic.desc" = ""ELAN Touchscreen""
+				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"
+				register "generic.detect" = "1"
+				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
+				register "generic.reset_delay_ms" = "20"
+				register "generic.reset_off_delay_ms" = "2"
+				register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)"
+				register "generic.stop_delay_ms" = "280"
+				register "generic.stop_off_delay_ms" = "2"
+				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)"
+				register "generic.enable_delay_ms" = "1"
+				register "generic.has_power_resource" = "1"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 10 on end
+			end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""PARA3406""
+				register "generic.desc" = ""Parade Touchscreen""
+				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"
+				register "generic.detect" = "1"
+				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
+				register "generic.reset_delay_ms" = "20"
+				register "generic.reset_off_delay_ms" = "2"
+				register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)"
+				register "generic.stop_delay_ms" = "280"
+				register "generic.stop_off_delay_ms" = "2"
+				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)"
+				register "generic.enable_delay_ms" = "1"
+				register "generic.has_power_resource" = "1"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 24 on end
+			end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""GTCH7503""
+				register "generic.desc" = ""G2TOUCH Touchscreen""
+				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"
+				register "generic.detect" = "1"
+				register "generic.reset_gpio" =
+							"ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
+				register "generic.reset_delay_ms" = "50"
+				register "generic.enable_gpio" =
+							"ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)"
+				register "generic.enable_delay_ms" = "1"
+				register "generic.has_power_resource" = "1"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 40 on end
+			end
+		end
+		device ref i2c3 on
+			chip drivers/i2c/generic
+				register "hid" = ""RTL5682""
+				register "name" = ""RT58""
+				register "desc" = ""Headset Codec""
+				register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_BOTH(GPP_A23)"
+				# Set the jd_src to RT5668_JD1 for jack detection
+				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 end
+			end
+			chip drivers/generic/alc1015
+				register "hid" = ""RTL1019""
+				register "sdb" =  "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_A11)"
+				device generic 0 on end
+			end
+		end
+		device ref i2c5 on
+			chip drivers/i2c/generic
+				register "hid" = ""ELAN0000""
+				register "desc" = ""ELAN Touchpad""
+				register "irq" = "ACPI_IRQ_WAKE_LEVEL_LOW(GPP_F14_IRQ)"
+				register "wake" = "GPE0_DW2_14"
+				register "detect" = "1"
+				device i2c 15 on end
+			end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""SYNA0000""
+				register "generic.cid" = ""ACPI0C50""
+				register "generic.desc" = ""Synaptics Touchpad""
+				register "generic.irq" = "ACPI_IRQ_WAKE_LEVEL_LOW(GPP_F14_IRQ)"
+				register "generic.wake" = "GPE0_DW2_14"
+				register "generic.detect" = "1"
+				register "hid_desc_reg_offset" = "0x20"
+				device i2c 0x2c on end
+			end
+		end
+		device ref pcie_rp4 on
+			# PCIe 4 WLAN
+			register "pch_pcie_rp[PCH_RP(4)]" = "{
+				.clk_src = 2,
+				.clk_req = 2,
+				.flags = PCIE_RP_LTR | PCIE_RP_AER,
+			}"
+			chip drivers/wifi/generic
+				register "wake" = "GPE0_DW1_03"
+				register "add_acpi_dma_property" = "true"
+				device pci 00.0 on end
+			end
+		end
+		device ref pch_espi on
+			chip ec/google/chromeec
+				use conn0 as mux_conn[0]
+				use conn1 as mux_conn[1]
+				device pnp 0c09.0 on end
+			end
+		end
+		device ref pmc hidden
+			chip drivers/intel/pmc_mux
+				device generic 0 on
+					chip drivers/intel/pmc_mux/conn
+						use usb2_port1 as usb2_port
+						use tcss_usb3_port1 as usb3_port
+						device generic 0 alias conn0 on end
+					end
+					chip drivers/intel/pmc_mux/conn
+						use usb2_port2 as usb2_port
+						use tcss_usb3_port2 as usb3_port
+						device generic 1 alias conn1 on end
+					end
+				end
+			end
+		end
+		device ref tcss_xhci on
+			chip drivers/usb/acpi
+				device ref tcss_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 tcss_usb3_port1 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB3 Type-C Port C1 (MLB)""
+						register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
+                                                register "use_custom_pld" = "true"
+                                                register "custom_pld" = "ACPI_PLD_TYPE_C(RIGHT, LEFT, ACPI_PLD_GROUP(2, 1))"
+						device ref tcss_usb3_port2 on end
+					end
+				end
+			end
+		end
+		device ref xhci on
+			chip drivers/usb/acpi
+				device ref xhci_root_hub on
+					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_port1 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 Type-C Port C1 (MLB)""
+						register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
+                                                register "use_custom_pld" = "true"
+                                                register "custom_pld" = "ACPI_PLD_TYPE_C(RIGHT, LEFT, ACPI_PLD_GROUP(2, 1))"
+						device ref usb2_port2 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 WWAN""
+						register "type" = "UPC_TYPE_INTERNAL"
+						device ref usb2_port5 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 UFC""
+						register "type" = "UPC_TYPE_INTERNAL"
+						device ref usb2_port6 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 WFC""
+						register "type" = "UPC_TYPE_INTERNAL"
+						device ref usb2_port7 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 Bluetooth""
+						register "type" = "UPC_TYPE_INTERNAL"
+						register "reset_gpio" =
+							"ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D4)"
+						device ref usb2_port8 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""CNVi Bluetooth""
+						register "type" = "UPC_TYPE_INTERNAL"
+						register "reset_gpio" =
+							"ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D4)"
+						device ref usb2_port10 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB3 WWAN""
+						register "type" = "UPC_TYPE_INTERNAL"
+						device ref usb3_port3 on end
+					end
+				end
+			end
+		end
+	end
 end