cyclades: introduce cyy_readb/writeb

Add helpers for io operations, so that we can eliminate huge
amount of supporting code. It is now centralized in those
helpers and used values are precomputed in the init phase.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

include/linux/cyclades.h

@@ -544,7 +544,7 @@ struct cyclades_port {
 	struct cyclades_card	*card;
 	union {
 		struct {
-			int filler;
+			void __iomem *base_addr;
 		} cyy;
 		struct {
 			struct CH_CTRL __iomem	*ch_ctrl;