From: Ben Dooks <ben-mtd@fluff.org>
Date: Tue, 15 Apr 2008 10:36:22 +0000 (+0100)
Subject: [MTD] [NAND] S3C2410 Allow ECC disable to be specified by the board
X-Git-Tag: firefly_0821_release~21546^2~20
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=37e5ffa3f15bd9a8b133ab13e9bef833b5eb33d4;p=firefly-linux-kernel-4.4.55.git

[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: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
---

diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index ccacc40e64ee..b34a460ab679 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/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
diff --git a/include/asm-arm/plat-s3c/nand.h b/include/asm-arm/plat-s3c/nand.h
index 01d175b54bce..ad6bbe90616e 100644
--- a/include/asm-arm/plat-s3c/nand.h
+++ b/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;