diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c
index e1897894a4ef..abba39722958 100644
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -23,9 +23,10 @@
 #include <linux/serial.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
-
 #include <linux/io.h>
 
+#include <asm/txx9/generic.h>
+
 #define PASS_LIMIT	256
 
 #if !defined(CONFIG_SERIAL_TXX9_STDSERIAL)