3 files changed, 12 insertions, 4 deletions
diff --git a/src/superio/smsc/lpc47b397/Makefile.inc b/src/superio/smsc/lpc47b397/Makefile.inc
index 30101cf52e..d25febc98e 100644
--- a/src/superio/smsc/lpc47b397/Makefile.inc
+++ b/src/superio/smsc/lpc47b397/Makefile.inc
@@ -20,4 +20,5 @@
 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 ##
 
+romstage-$(CONFIG_SUPERIO_SMSC_LPC47B397) += early_serial.c
 ramstage-$(CONFIG_SUPERIO_SMSC_LPC47B397) += superio.c
diff --git a/src/superio/smsc/lpc47b397/early_serial.c b/src/superio/smsc/lpc47b397/early_serial.c
index 953cd4bbb1..047145e7f3 100644
--- a/src/superio/smsc/lpc47b397/early_serial.c
+++ b/src/superio/smsc/lpc47b397/early_serial.c
@@ -21,6 +21,8 @@
  */
 
 #include <arch/io.h>
+#include <device/pnp.h>
+#include <stdint.h>
 #include "lpc47b397.h"
 
 static void pnp_enter_conf_state(pnp_devfn_t dev)
@@ -35,7 +37,7 @@ static void pnp_exit_conf_state(pnp_devfn_t dev)
 	outb(0xaa, port);
 }
 
-static void lpc47b397_enable_serial(pnp_devfn_t dev, u16 iobase)
+void lpc47b397_enable_serial(pnp_devfn_t dev, u16 iobase)
 {
 	pnp_enter_conf_state(dev);
 	pnp_set_logical_device(dev);
diff --git a/src/superio/smsc/lpc47b397/lpc47b397.h b/src/superio/smsc/lpc47b397/lpc47b397.h
index 310084a857..996b7cd078 100644
--- a/src/superio/smsc/lpc47b397/lpc47b397.h
+++ b/src/superio/smsc/lpc47b397/lpc47b397.h
@@ -20,8 +20,8 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifndef SUPERIO_SMSC_LPC47B397_LPC47B397_H
-#define SUPERIO_SMSC_LPC47B397_LPC47B397_H
+#ifndef SUPERIO_SMSC_LPC47B397_H
+#define SUPERIO_SMSC_LPC47B397_H
 
 #define LPC47B397_FDC		0	/* Floppy */
 #define LPC47B397_PP		3	/* Parallel Port */
@@ -31,4 +31,9 @@
 #define LPC47B397_HWM		8	/* HW Monitor */
 #define LPC47B397_RT		10	/* Runtime reg*/
 
-#endif
+#include <arch/io.h>
+#include <stdint.h>
+
+void lpc47b397_enable_serial(pnp_devfn_t dev, u16 iobase);
+
+#endif /* SUPERIO_SMSC_LPC47B397_H */