sh: Add Renesas rsk7264 board

The rsk7264 (also know as rsk2+sh7264) is an SH2A based board
with 64MB NAND flash and 64MB SDRAM. It is very similar to the
rsk7203 board.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/sh/include/asm/cpu_sh2.h b/arch/sh/include/asm/cpu_sh2.h
index 8bc9bc6..767e189 100644
--- a/arch/sh/include/asm/cpu_sh2.h
+++ b/arch/sh/include/asm/cpu_sh2.h
@@ -33,6 +33,8 @@
 
 #if defined(CONFIG_CPU_SH7203)
 # include <asm/cpu_sh7203.h>
+#elif defined(CONFIG_CPU_SH7264)
+# include <asm/cpu_sh7264.h>
 #else
 # error "Unknown SH2 variant"
 #endif