[PCMCIA] Add Cirrus PD6729 PCMCIA bridge support.

Patch from Komuro, cleaned up by Russell King.

drivers/pcmcia/Kconfig

@@ -69,6 +69,13 @@ config CARDBUS
 	depends on YENTA
 	default y if YENTA
 
+config PD6729
+	tristate "Cirrus PD6729 compatible bridge support"
+	depends on PCMCIA && PCI
+	help
+	  This provides support for the Cirrus PD6729 PCI-to-PCMCIA bridge
+	  device, found in some older laptops and PCMCIA card readers.
+
 config I82092
 	tristate "i82092 compatible bridge support"
 	depends on PCMCIA && PCI

drivers/pcmcia/Makefile

@@ -9,6 +9,7 @@ endif
 obj-$(CONFIG_PCMCIA)				+= pcmcia_core.o ds.o
 obj-$(CONFIG_YENTA) 				+= yenta_socket.o
 
+obj-$(CONFIG_PD6729)				+= pd6729.o
 obj-$(CONFIG_I82365)				+= i82365.o
 obj-$(CONFIG_I82092)				+= i82092.o
 obj-$(CONFIG_TCIC)				+= tcic.o

drivers/pcmcia/pd6729.h

+#ifndef _INCLUDE_GUARD_PD6729_H_
+#define _INCLUDE_GUARD_PD6729_H_
+
+/* Debuging defines */
+#ifdef NOTRACE
+#define dprintk(fmt, args...) printk(fmt , ## args)
+#else
+#define dprintk(fmt, args...) do {} while (0)
+#endif
+
+/* Flags for I365_GENCTL */
+#define I365_DF_VS1		0x40	/* DF-step Voltage Sense */
+#define I365_DF_VS2		0x80
+
+/* Fields in PD67_EXTERN_DATA */
+#define PD67_EXD_VS1(s)		(0x01 << ((s) << 1))
+#define PD67_EXD_VS2(s)		(0x02 << ((s) << 1))
+
+
+
+
+struct pd6729_socket {
+	int	number;
+	unsigned long io_base; 	/* base io address of the socket */
+	struct pcmcia_socket socket;
+};
+
+#endif