diff --git a/arch/powerpc/cpu/mpc83xx/cpu.c b/arch/powerpc/cpu/mpc83xx/cpu.c
index ffb4241..b29f271 100644
--- a/arch/powerpc/cpu/mpc83xx/cpu.c
+++ b/arch/powerpc/cpu/mpc83xx/cpu.c
@@ -25,6 +25,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#ifndef CONFIG_CPU_MPC83XX
 int checkcpu(void)
 {
 	volatile immap_t *immr;
@@ -114,6 +115,7 @@
 
 	return 0;
 }
+#endif
 
 #ifndef CONFIG_SYSRESET
 int
diff --git a/arch/powerpc/cpu/mpc83xx/cpu_init.c b/arch/powerpc/cpu/mpc83xx/cpu_init.c
index fcac9f6..1555205 100644
--- a/arch/powerpc/cpu/mpc83xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc83xx/cpu_init.c
@@ -464,6 +464,7 @@
 }
 #endif /* CONFIG_DISPLAY_AER_xxxx */
 
+#ifndef CONFIG_CPU_MPC83XX
 /*
  * Figure out the cause of the reset
  */
@@ -505,3 +506,4 @@
 
 	return 0;
 }
+#endif
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index 6fbe8c4..f97ce48 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -1325,7 +1325,9 @@
 /* In misc.c */
 void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val);
 
+#ifndef CONFIG_CPU_MPC83XX
 int prt_83xx_rsr(void);
+#endif
 
 #endif /* ndef ASSEMBLY*/