diff --git a/src/mainboard/lenovo/t400/Makefile.inc b/src/mainboard/lenovo/t400/Makefile.inc
index 62e27d3e40..7721e0345f 100644
--- a/src/mainboard/lenovo/t400/Makefile.inc
+++ b/src/mainboard/lenovo/t400/Makefile.inc
@@ -13,6 +13,7 @@
 ## GNU General Public License for more details.
 ##
 
+romstage-y += gpio.c
 romstage-y += dock.c
 
 ramstage-y += dock.c
diff --git a/src/mainboard/lenovo/t400/gpio.h b/src/mainboard/lenovo/t400/gpio.c
similarity index 96%
rename from src/mainboard/lenovo/t400/gpio.h
rename to src/mainboard/lenovo/t400/gpio.c
index 261c912abd..ef340f28bf 100644
--- a/src/mainboard/lenovo/t400/gpio.h
+++ b/src/mainboard/lenovo/t400/gpio.c
@@ -11,9 +11,6 @@
  * GNU General Public License for more details.
  */
 
-#ifndef LENOVO_T400_GPIO_H
-#define LENOVO_T400_GPIO_H
-
 #include <southbridge/intel/common/gpio.h>
 
 static const struct pch_gpio_set1 pch_gpio_set1_mode = {
@@ -115,7 +112,7 @@ static const struct pch_gpio_set2 pch_gpio_set2_level = {
 	.gpio49 = GPIO_LEVEL_HIGH,
 };
 
-const struct pch_gpio_map t400_gpio_map = {
+const struct pch_gpio_map mainboard_gpio_map = {
 	.set1 = {
 		.mode      = &pch_gpio_set1_mode,
 		.direction = &pch_gpio_set1_direction,
@@ -129,5 +126,3 @@ const struct pch_gpio_map t400_gpio_map = {
 		.level     = &pch_gpio_set2_level,
 	},
 };
-
-#endif
diff --git a/src/mainboard/lenovo/t400/romstage.c b/src/mainboard/lenovo/t400/romstage.c
index 1974ab6c7d..7bf14bff19 100644
--- a/src/mainboard/lenovo/t400/romstage.c
+++ b/src/mainboard/lenovo/t400/romstage.c
@@ -28,11 +28,11 @@
 #include <romstage_handoff.h>
 #include <console/console.h>
 #include <southbridge/intel/i82801ix/i82801ix.h>
+#include <southbridge/intel/common/gpio.h>
 #include <northbridge/intel/gm45/gm45.h>
 #include <drivers/lenovo/hybrid_graphics/hybrid_graphics.h>
 #include <timestamp.h>
 #include "dock.h"
-#include "gpio.h"
 
 #define LPC_DEV PCI_DEV(0, 0x1f, 0)
 #define MCH_DEV PCI_DEV(0, 0, 0)
@@ -93,7 +93,7 @@ void mainboard_romstage_entry(unsigned long bist)
 		gm45_early_reset();
 	}
 
-	setup_pch_gpios(&t400_gpio_map);
+	setup_pch_gpios(&mainboard_gpio_map);
 
 	/* ASPM related setting, set early by original BIOS. */
 	DMIBAR16(0x204) &= ~(3 << 10);