Cleanup compile warning.
diff --git a/common/cmd_pcmcia.c b/common/cmd_pcmcia.c
index 16d9d14..46b703d 100644
--- a/common/cmd_pcmcia.c
+++ b/common/cmd_pcmcia.c
@@ -1129,8 +1129,10 @@
 
 static int voltage_set(int slot, int vcc, int vpp)
 {
+#ifdef DEBUG
 	volatile pcmconf8xx_t	*pcmp =
 		(pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
+#endif
 	volatile unsigned char	*powerctl =
 		(volatile unsigned char *)PCMCIA_CTRL;
 	unsigned long		reg;