[ARM] S3C64XX: Map GPIO block

Add mapping for GPIO block in the static mappings.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

arch/arm/mach-s3c6400/include/mach/map.h

@@ -35,6 +35,10 @@
 #define S3C64XX_PA_SYSCON	(0x7E00F000)
 #define S3C64XX_PA_TIMER	(0x7F006000)
 
+#define S3C64XX_PA_GPIO		(0x7F008000)
+#define S3C64XX_VA_GPIO		S3C_ADDR(0x00500000)
+#define S3C64XX_SZ_GPIO		SZ_4K
+
 #define S3C64XX_PA_SDRAM	(0x50000000)
 #define S3C64XX_PA_VIC0		(0x71200000)
 #define S3C64XX_PA_VIC1		(0x71300000)

arch/arm/plat-s3c64xx/cpu.c

@@ -92,6 +92,11 @@ static struct map_desc s3c_iodesc[] __initdata = {
 		.pfn		= __phys_to_pfn(S3C_PA_TIMER),
 		.length		= SZ_16K,
 		.type		= MT_DEVICE,
+	}, {
+		.virtual	= S3C64XX_VA_GPIO,
+		.pfn		= __phys_to_pfn(S3C64XX_PA_GPIO),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
 	},
 };