GCC-4.x fixes: clean up global data pointer initialization for all boards.
diff --git a/cpu/s3c44b0/serial.c b/cpu/s3c44b0/serial.c
index 70b4ee8..95d0266 100644
--- a/cpu/s3c44b0/serial.c
+++ b/cpu/s3c44b0/serial.c
@@ -37,6 +37,8 @@
 #include <common.h>
 #include <asm/hardware.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 /* flush serial input queue. returns 0 on success or negative error
  * number otherwise
  */
@@ -68,8 +70,6 @@
 
 void serial_setbrg (void)
 {
-	DECLARE_GLOBAL_DATA_PTR;
-
 	u32 divisor = 0;
 
 	/* get correct divisor */