sh: Consolidated SH7751/SH7780 PCI support.

This cleans up quite a lot of the PCI mess that we
currently have, and attempts to consolidate the
duplication in the SH7780 and SH7751 PCI controllers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h
index 894e64b..27dba65 100644
--- a/include/asm-sh/io.h
+++ b/include/asm-sh/io.h
@@ -209,6 +209,11 @@
         *(volatile unsigned long*)addr = b;
 }
 
+static inline void ctrl_delay(void)
+{
+	ctrl_inw(P2SEG);
+}
+
 #define IO_SPACE_LIMIT 0xffffffff
 
 /*