GCC-4.x fixes: clean up global data pointer initialization for all boards.
diff --git a/cpu/arm720t/serial_netarm.c b/cpu/arm720t/serial_netarm.c
index 5ad98f0..bc6bf30 100644
--- a/cpu/arm720t/serial_netarm.c
+++ b/cpu/arm720t/serial_netarm.c
@@ -34,6 +34,8 @@
 
 #include <asm/hardware.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 #define PORTA	(*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_PORTA))
 #if !defined(CONFIG_NETARM_NS7520)
 #define PORTB	(*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_PORTB))
@@ -67,9 +69,6 @@
  */
 void serial_setbrg (void)
 {
-	/* get the gd pointer */
-	DECLARE_GLOBAL_DATA_PTR;
-
 	/* set 0 ... make sure pins are configured for serial */
 #if !defined(CONFIG_NETARM_NS7520)
 	PORTA = PORTB =