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: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index e6177dd..24645f9 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -393,21 +393,15 @@
 #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) {