sh: Centralize the CPU cache initialization routines.

This provides a central point for CPU cache initialization routines.
This replaces the antiquated p3_cache_init() method, which the vast
majority of CPUs never cared about.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index 9ec13fb..e37654f 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -12,7 +12,6 @@
  *
  * See arch/sh/kernel/cpu/init.c:cache_init().
  */
-#define p3_cache_init()				do { } while (0)
 #define flush_cache_all()			do { } while (0)
 #define flush_cache_mm(mm)			do { } while (0)
 #define flush_cache_dup_mm(mm)			do { } while (0)
@@ -78,5 +77,7 @@
 
 #define PG_dcache_dirty	PG_arch_1
 
+void cpu_cache_init(void);
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_CACHEFLUSH_H */