diff --git a/src/mainboard/google/rex/Kconfig b/src/mainboard/google/rex/Kconfig
index 367cf091ac..bda753bbd6 100644
--- a/src/mainboard/google/rex/Kconfig
+++ b/src/mainboard/google/rex/Kconfig
@@ -3,6 +3,7 @@ config BOARD_GOOGLE_REX_COMMON
 	# FIXME: Rex Proto 0 only has 64MB SPINOR mounted on the board,
 	# and the plan is to use 32MB later with Proto 1 onwards.
 	select BOARD_ROMSIZE_KB_65536
+	select DRIVERS_I2C_GENERIC
 	select EC_GOOGLE_CHROMEEC
 	select EC_GOOGLE_CHROMEEC_BOARDID
 	select EC_GOOGLE_CHROMEEC_ESPI
diff --git a/src/mainboard/google/rex/variants/rex0/overridetree.cb b/src/mainboard/google/rex/variants/rex0/overridetree.cb
index 417d47bf7a..1e877d36c1 100644
--- a/src/mainboard/google/rex/variants/rex0/overridetree.cb
+++ b/src/mainboard/google/rex/variants/rex0/overridetree.cb
@@ -201,7 +201,16 @@ chip soc/intel/meteorlake
 		device ref i2c0 on end
 		device ref i2c1 on end
 		device ref i2c2 on end
-		device ref i2c3 on end
+		device ref i2c3 on
+			chip drivers/i2c/generic
+				register "hid" = ""ELAN0000""
+				register "desc" = ""ELAN Touchpad""
+				register "irq" = "ACPI_IRQ_WAKE_LEVEL_LOW(GPP_B00_IRQ)"
+				register "wake" = "GPE0_DW0_00"
+				register "detect" = "1"
+				device i2c 15 on end
+			end
+		end
 		device ref sata on end
 		device ref i2c4 on
 			chip drivers/i2c/tpm