diff --git a/src/mainboard/google/fatcat/variants/fatcat/fw_config.c b/src/mainboard/google/fatcat/variants/fatcat/fw_config.c
index d1f40ec06d..e0a59219a4 100644
--- a/src/mainboard/google/fatcat/variants/fatcat/fw_config.c
+++ b/src/mainboard/google/fatcat/variants/fatcat/fw_config.c
@@ -669,15 +669,18 @@ void fw_config_gpio_padbased_override(struct pad_config *padbased_table)
 		GPIO_PADBASED_OVERRIDE(padbased_table, touchpad_i2c_disable_pads);
 	}
 
-	if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_LPSS_I2C))) {
+	if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_LPSS_I2C)) ||
+		fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_LPSS_I2C_ELAN_REX))) {
 		GPIO_PADBASED_OVERRIDE(padbased_table, touchscreen_lpss_i2c_enable_pads);
-	} else if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_I2C))) {
+	} else if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_I2C)) ||
+		fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_I2C_ELAN_REX))) {
 		GPIO_PADBASED_OVERRIDE(padbased_table, touchscreen_thc_i2c_enable_pads);
 		if (config->thc_wake_on_touch[0])
 			GPIO_PADBASED_OVERRIDE(padbased_table, thc0_enable_wake);
 	} else if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_GSPI))) {
 		GPIO_PADBASED_OVERRIDE(padbased_table, touchscreen_gspi_enable_pads);
-	} else if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_SPI))) {
+	} else if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_SPI)) ||
+		fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_SPI_ELAN_REX))) {
 		GPIO_PADBASED_OVERRIDE(padbased_table, touchscreen_thc_spi_enable_pads);
 		if (config->thc_wake_on_touch[0])
 			GPIO_PADBASED_OVERRIDE(padbased_table, thc0_enable_wake);
@@ -708,7 +711,8 @@ void fw_config_gpio_padbased_override(struct pad_config *padbased_table)
 	 *       2. CBI selecting TS THC-SPI or TS GSPI with FSP present is invalid case.
 	 */
 	if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_GSPI)) ||
-		fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_SPI))) {
+		fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_SPI)) ||
+		fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_SPI_ELAN_REX))) {
 		/*  board has TS SPI rework and not FPS support */
 	} else if (fw_config_probe(FW_CONFIG(FP, FP_PRESENT))) {
 		GPIO_PADBASED_OVERRIDE(padbased_table, fp_enable_pads);
diff --git a/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb b/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
index f95d9e8255..dc744d0cd1 100644
--- a/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
+++ b/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
@@ -24,6 +24,10 @@ fw_config
 		option TOUCHSCREEN_GSPI		2
 		option TOUCHSCREEN_THC_SPI	3
 		option TOUCHSCREEN_THC_I2C	4
+		# NOTE: conversion cables are required to connect with Google touch screen
+		option TOUCHSCREEN_LPSS_I2C_ELAN_REX	5
+		option TOUCHSCREEN_THC_SPI_ELAN_REX	6
+		option TOUCHSCREEN_THC_I2C_ELAN_REX	7
 	end
 	field TOUCHPAD 11 12
 		option TOUCHPAD_NONE		0
@@ -326,6 +330,8 @@ chip soc/intel/pantherlake
 			register "thc_wake_on_touch[0]" = "true"
 			probe TOUCHSCREEN TOUCHSCREEN_THC_SPI
 			probe TOUCHSCREEN TOUCHSCREEN_THC_I2C
+			probe TOUCHSCREEN TOUCHSCREEN_THC_SPI_ELAN_REX
+			probe TOUCHSCREEN TOUCHSCREEN_THC_I2C_ELAN_REX
 			# THC0 is function 0; hence it needs to be enabled when THC1 is to be enabled.
 			probe TOUCHPAD TOUCHPAD_THC_I2C
 			chip drivers/intel/touch
@@ -345,6 +351,23 @@ chip soc/intel/pantherlake
 					probe TOUCHSCREEN TOUCHSCREEN_THC_I2C
 				end
 			end
+			chip drivers/intel/touch
+				register "name" = "INTEL_THC0_NAME"
+				register "mode" = "THC_HID_I2C_MODE"
+				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_F08)"
+				register "enable_delay_ms" = "2"
+				register "enable_off_delay_ms" = "2"
+				register "wake_on_touch" = "true"
+				# NOTE: Use GpioInt() in _CRS and does not use GPE.
+				register "wake_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW_WAKE(GPP_VGPIO3_THC0)"
+				register "active_ltr" = "1"
+				register "idle_ltr" = "0"
+				register "connected_device" = "TH_SENSOR_ELAN_REX"
+				register "add_acpi_dma_property" = "true"
+				device generic 0 alias touch_0_i2c_google on
+					probe TOUCHSCREEN TOUCHSCREEN_THC_I2C_ELAN_REX
+				end
+			end
 			chip drivers/intel/touch
 				register "name" = "INTEL_THC0_NAME"
 				register "mode" = "THC_HID_SPI_MODE"
@@ -367,6 +390,28 @@ chip soc/intel/pantherlake
 					probe TOUCHSCREEN TOUCHSCREEN_THC_SPI
 				end
 			end
+			chip drivers/intel/touch
+				register "name" = "INTEL_THC0_NAME"
+				register "mode" = "THC_HID_SPI_MODE"
+				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_F08)"
+				register "enable_delay_ms" = "2"
+				register "enable_off_delay_ms" = "2"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E16)"
+				register "reset_delay_ms" = "10"
+				register "reset_off_delay_ms" = "2"
+				register "wake_on_touch" = "true"
+				# NOTE: Use GpioInt() in _CRS and does not use GPE.
+				register "wake_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW_WAKE(GPP_VGPIO3_THC0)"
+				register "active_ltr" = "1"
+				register "idle_ltr" = "0"
+				register "connected_device" = "TH_SENSOR_ELAN_REX"
+				register "soc_hidspi.write_mode" = "HIDSPI_WRITE_MODE_SINGLE"
+				register "soc_hidspi.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E16)"
+				register "add_acpi_dma_property" = "true"
+				device generic 0 alias touch_0_spi_google on
+					probe TOUCHSCREEN TOUCHSCREEN_THC_SPI_ELAN_REX
+				end
+			end
 		end
 		device ref thc1 on
 			register "thc_wake_on_touch[1]" = "true"
@@ -902,6 +947,24 @@ chip soc/intel/pantherlake
 					probe TOUCHSCREEN TOUCHSCREEN_LPSS_I2C
 				end
 			end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""ELAN9006""
+				register "generic.desc" = ""ELAN Touchscreen""
+				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E18_IRQ)"
+				# NOTE: pmc_gpe0_dw2 is GPP_E in baseboard devicetree.cb.
+				register "generic.wake" = "GPE0_DW2_18"
+				register "generic.probed" = "1"
+				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E16)"
+				register "generic.reset_delay_ms" = "20"
+				register "generic.reset_off_delay_ms" = "2"
+				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_F08)"
+				register "generic.enable_delay_ms" = "1"
+				register "generic.has_power_resource" = "1"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 10 on
+					probe TOUCHSCREEN TOUCHSCREEN_LPSS_I2C_ELAN_REX
+				end
+			end
 		end # I2C4
 		device ref i2c5 on
 			chip drivers/i2c/hid
diff --git a/src/mainboard/google/fatcat/variants/fatcat/variant.c b/src/mainboard/google/fatcat/variants/fatcat/variant.c
index a3d7e79e65..a8b5b4146d 100644
--- a/src/mainboard/google/fatcat/variants/fatcat/variant.c
+++ b/src/mainboard/google/fatcat/variants/fatcat/variant.c
@@ -51,9 +51,11 @@ void variant_update_soc_chip_config(struct soc_intel_pantherlake_config *config)
      * | with WOT disabled | with WOT disabled|                 |                            |
      * +===================+==================+=================+============================+
      */
-	if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_I2C))) {
+	if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_I2C)) ||
+		fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_I2C_ELAN_REX))) {
 		config->thc_mode[0] = THC_HID_I2C_MODE;
-	} else if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_SPI))) {
+	} else if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_SPI)) ||
+		fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_THC_SPI_ELAN_REX))) {
 		config->thc_mode[0] = THC_HID_SPI_MODE;
 	} else if (fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_GSPI))) {
 		config->serial_io_gspi_mode[PchSerialIoIndexGSPI0] = PchSerialIoPci;