diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index 0d7360d549c1..bfd9e2798008 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -323,9 +323,13 @@ asmlinkage void cpu_init(void)
 	cache_init();
 
 	if (raw_smp_processor_id() == 0) {
+#ifdef CONFIG_MMU
 		shm_align_mask = max_t(unsigned long,
 				       current_cpu_data.dcache.way_size - 1,
 				       PAGE_SIZE - 1);
+#else
+		shm_align_mask = PAGE_SIZE - 1;
+#endif
 
 		/* Boot CPU sets the cache shape */
 		detect_cache_shape();
diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c
index e58cfbf45150..776d664a40c5 100644
--- a/arch/sh/mm/cache.c
+++ b/arch/sh/mm/cache.c
@@ -244,7 +244,11 @@ void flush_cache_sigtramp(unsigned long address)
 
 static void compute_alias(struct cache_info *c)
 {
+#ifdef CONFIG_MMU
 	c->alias_mask = ((c->sets - 1) << c->entry_shift) & ~(PAGE_SIZE - 1);
+#else
+	c->alias_mask = 0;
+#endif
 	c->n_aliases = c->alias_mask ? (c->alias_mask >> PAGE_SHIFT) + 1 : 0;
 }