[v4,1/6] mtd: rawnand: add Reed-Solomon error correction algorithm

Message ID 20180611205224.23340-2-stefan@agner.ch
State New
Headers show
Series
  • mtd: rawnand: add NVIDIA Tegra NAND flash support
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Commit Message

Stefan Agner June 11, 2018, 8:52 p.m.
Add Reed-Solomon (RS) to the enumeration of ECC algorithms.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
---
 Documentation/devicetree/bindings/mtd/nand.txt | 2 +-
 drivers/mtd/nand/raw/nand_base.c               | 1 +
 include/linux/mtd/rawnand.h                    | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

Comments

Rob Herring June 12, 2018, 6:37 p.m. | #1
On Mon, Jun 11, 2018 at 10:52:19PM +0200, Stefan Agner wrote:
> Add Reed-Solomon (RS) to the enumeration of ECC algorithms.
> 
> Signed-off-by: Stefan Agner <stefan@agner.ch>
> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
> ---
>  Documentation/devicetree/bindings/mtd/nand.txt | 2 +-

Acked-by: Rob Herring <robh@kernel.org>

>  drivers/mtd/nand/raw/nand_base.c               | 1 +
>  include/linux/mtd/rawnand.h                    | 1 +
>  3 files changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/Documentation/devicetree/bindings/mtd/nand.txt b/Documentation/devicetree/bindings/mtd/nand.txt
index 8bb11d809429..eaef8c657aa5 100644
--- a/Documentation/devicetree/bindings/mtd/nand.txt
+++ b/Documentation/devicetree/bindings/mtd/nand.txt
@@ -25,7 +25,7 @@  Optional NAND chip properties:
 		  Deprecated values:
 		  "soft_bch": use "soft" and nand-ecc-algo instead
 - nand-ecc-algo: string, algorithm of NAND ECC.
-		 Supported values are: "hamming", "bch".
+		 Valid values are: "hamming", "bch", "rs".
 - nand-bus-width : 8 or 16 bus width if not present 8
 - nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
 
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index f28c3a555861..9eb5678dd6d0 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -5744,6 +5744,7 @@  static int of_get_nand_ecc_mode(struct device_node *np)
 static const char * const nand_ecc_algos[] = {
 	[NAND_ECC_HAMMING]	= "hamming",
 	[NAND_ECC_BCH]		= "bch",
+	[NAND_ECC_RS]		= "rs",
 };
 
 static int of_get_nand_ecc_algo(struct device_node *np)
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 5dad59b31244..6a82da8c44ce 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -114,6 +114,7 @@  enum nand_ecc_algo {
 	NAND_ECC_UNKNOWN,
 	NAND_ECC_HAMMING,
 	NAND_ECC_BCH,
+	NAND_ECC_RS,
 };
 
 /*