diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index 13374574502da32c82e437c186017e31aa3468eb..85abd61a8140f9905d3d835afc57d64220b45452 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -31,7 +31,6 @@
 struct mpc8xx_pcmcia_ops m8xx_pcmcia_ops;
 #endif
 
-void m8xx_calibrate_decr(void);
 extern int cpm_pic_init(void);
 extern int cpm_get_irq(void);