diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 96f107cc0160..d387b3937ccc 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -269,7 +269,10 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	cpu_callin_map[boot_cpuid] = 1;
 
 	if (smp_ops)
-		max_cpus = smp_ops->probe();
+		if (smp_ops->probe)
+			max_cpus = smp_ops->probe();
+		else
+			max_cpus = NR_CPUS;
 	else
 		max_cpus = 1;
  
@@ -493,7 +496,8 @@ int __devinit start_secondary(void *unused)
 	preempt_disable();
 	cpu_callin_map[cpu] = 1;
 
-	smp_ops->setup_cpu(cpu);
+	if (smp_ops->setup_cpu)
+		smp_ops->setup_cpu(cpu);
 	if (smp_ops->take_timebase)
 		smp_ops->take_timebase();
 
@@ -556,7 +560,7 @@ void __init smp_cpus_done(unsigned int max_cpus)
 	old_mask = current->cpus_allowed;
 	set_cpus_allowed(current, cpumask_of_cpu(boot_cpuid));
 	
-	if (smp_ops)
+	if (smp_ops && smp_ops->setup_cpu)
 		smp_ops->setup_cpu(boot_cpuid);
 
 	set_cpus_allowed(current, old_mask);
diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c
index 94f901da4918..04160a4cc699 100644
--- a/arch/powerpc/platforms/85xx/smp.c
+++ b/arch/powerpc/platforms/85xx/smp.c
@@ -88,25 +88,15 @@ struct smp_ops_t smp_85xx_ops = {
 	.kick_cpu = smp_85xx_kick_cpu,
 };
 
-static int __init smp_dummy_probe(void)
-{
-	return NR_CPUS;
-}
-
 void __init mpc85xx_smp_init(void)
 {
 	struct device_node *np;
 
-	smp_85xx_ops.message_pass = NULL;
-
 	np = of_find_node_by_type(NULL, "open-pic");
 	if (np) {
 		smp_85xx_ops.probe = smp_mpic_probe;
 		smp_85xx_ops.setup_cpu = smp_85xx_setup_cpu;
 		smp_85xx_ops.message_pass = smp_mpic_message_pass;
-	} else {
-		smp_85xx_ops.probe = smp_dummy_probe;
-		smp_85xx_ops.setup_cpu = smp_85xx_basic_setup;
 	}
 
 	if (cpu_has_feature(CPU_FTR_DBELL))