sh: Convert SH-2 to new cacheflush interface.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c
index da5bc6a..5ac299d 100644
--- a/arch/sh/mm/cache.c
+++ b/arch/sh/mm/cache.c
@@ -244,6 +244,12 @@
 	__flush_purge_region		= noop__flush_region;
 	__flush_invalidate_region	= noop__flush_region;
 
+	if (boot_cpu_data.family == CPU_FAMILY_SH2) {
+		extern void __weak sh2_cache_init(void);
+
+		sh2_cache_init();
+	}
+
 	if ((boot_cpu_data.family == CPU_FAMILY_SH4) ||
 	    (boot_cpu_data.family == CPU_FAMILY_SH4A) ||
 	    (boot_cpu_data.family == CPU_FAMILY_SH4AL_DSP)) {