[libata] ARM: add ixp4xx PATA driver

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

include/asm-arm/arch-ixp4xx/platform.h

@@ -86,6 +86,19 @@ struct ixp4xx_i2c_pins {
 	unsigned long scl_pin;
 };
 
+/*
+ * This structure provide a means for the board setup code
+ * to give information to th pata_ixp4xx driver. It is
+ * passed as platform_data.
+ */
+struct ixp4xx_pata_data {
+	volatile u32	*cs0_cfg;
+	volatile u32	*cs1_cfg;
+	unsigned long	cs0_bits;
+	unsigned long	cs1_bits;
+	void __iomem	*cs0;
+	void __iomem	*cs1;
+};
 
 struct sys_timer;