sh: Trivial build fixes for SH-2 support.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 59f4cc1..29bd37b 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -77,6 +77,7 @@
 	printk("%d pages swap cached\n",cached);
 }
 
+#ifdef CONFIG_MMU
 static void set_pte_phys(unsigned long addr, unsigned long phys, pgprot_t prot)
 {
 	pgd_t *pgd;
@@ -139,6 +140,7 @@
 
 	set_pte_phys(address, phys, prot);
 }
+#endif	/* CONFIG_MMU */
 
 /* References to section boundaries */