sh: Add support for SH7786 CPU subtype.

This adds preliminary support for the SH7786 CPU subtype.

While this is a dual-core CPU, only UP is supported for now. L2 cache
support is likewise not yet implemented.

More information on this particular CPU subtype is available at:

	http://www.renesas.com/fmwk.jsp?cnt=sh7786_root.jsp&fp=/products/mpumcu/superh_family/sh7780_series/sh7786_group/

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/cpu-sh4/cpu/freq.h b/arch/sh/include/cpu-sh4/cpu/freq.h
index c23af81..749d1c4 100644
--- a/arch/sh/include/cpu-sh4/cpu/freq.h
+++ b/arch/sh/include/cpu-sh4/cpu/freq.h
@@ -29,6 +29,10 @@
 #define FRQCR0			0xffc80000
 #define FRQCR1			0xffc80004
 #define FRQMR1			0xffc80014
+#elif defined(CONFIG_CPU_SUBTYPE_SH7786)
+#define FRQCR0			0xffc40000
+#define FRQCR1			0xffc40004
+#define FRQMR1			0xffc40014
 #elif defined(CONFIG_CPU_SUBTYPE_SHX3)
 #define FRQCR			0xffc00014
 #else