sh: Support for L2 cache on newer SH-4A CPUs.

This implements preliminary support for the L2 caches found
on newer SH-4A CPUs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/asm-sh/cpu-features.h b/include/asm-sh/cpu-features.h
index e1260aa..4bccd7c 100644
--- a/include/asm-sh/cpu-features.h
+++ b/include/asm-sh/cpu-features.h
@@ -19,5 +19,6 @@
 #define CPU_HAS_PERF_COUNTER	0x0010	/* Hardware performance counters */
 #define CPU_HAS_PTEA		0x0020	/* PTEA register */
 #define CPU_HAS_LLSC		0x0040	/* movli.l/movco.l */
+#define CPU_HAS_L2_CACHE	0x0080	/* Secondary cache / URAM */
 
 #endif /* __ASM_SH_CPU_FEATURES_H */