[MTD] [NAND] S3C2410 Allow ECC disable to be specified by the board

Add support to disable ECC checking for a given chip
when passed by the board via the platform data.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

drivers/mtd/nand/s3c2410.c

@@ -675,6 +675,9 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
 
 	if (set->ecc_layout != NULL)
 		chip->ecc.layout = set->ecc_layout;
+
+	if (set->disable_ecc)
+		chip->ecc.mode	= NAND_ECC_NONE;
 }
 
 /* s3c2410_nand_update_chip

include/asm-arm/plat-s3c/nand.h

@@ -22,6 +22,8 @@
 */
 
 struct s3c2410_nand_set {
+	unsigned int		disable_ecc : 1;
+
 	int			nr_chips;
 	int			nr_partitions;
 	char			*name;