sparc: Kill sbus_arch_preinit().

32-bit sparc just needed it to register the ioport procfs bits, do this
via an arch_initcall() instead.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc/kernel/ioport.c

@@ -393,21 +393,15 @@ void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
 #endif
 }
 
-int __init sbus_arch_preinit(void)
+static int __init sparc_register_ioport(void)
 {
 	register_proc_sparc_ioport();
 
-#ifdef CONFIG_SUN4
-	{
-		extern void sun4_dvma_init(void);
-		sun4_dvma_init();
-	}
-	return 1;
-#else
 	return 0;
-#endif
 }
 
+arch_initcall(sparc_register_ioport);
+
 void __init sbus_arch_postinit(void)
 {
 	if (sparc_cpu_model == sun4d) {

arch/sparc64/kernel/sbus.c

@@ -655,11 +655,6 @@ void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
 	sbus_iommu_init(dp->node, sbus);
 }
 
-int __init sbus_arch_preinit(void)
-{
-	return 0;
-}
-
 void __init sbus_arch_postinit(void)
 {
 	extern void firetruck_init(void);

drivers/sbus/sbus.c

@@ -153,9 +153,6 @@ static int __init sbus_init(void)
 	const char *sbus_name = "sbus";
 	int num_sbus = 0;
 
-	if (sbus_arch_preinit())
-		return 0;
-
 	if (sparc_cpu_model == sun4d)
 		sbus_name = "sbi";