[PATCH v5 1/6] mtd: rawnand: add Reed-Solomon error correction algorithm

Stefan Agner
2018-06-17T20:46:25Z

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

diff --git a/Documentation/devicetree/bindings/mtd/nand.txt b/Documentation/devicetree/bindings/mtd/nand.txt
index 8bb11d809429d..eaef8c657aa5c 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 10c4f9919850c..47e9cb9063da4 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -5777,6 +5777,7 @@ 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 3e8ec3b8a39c7..2d9cb7acbc3d8 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -121,6 +121,7 @@ enum nand_ecc_algo {
NAND_ECC_UNKNOWN,
NAND_ECC_HAMMING,
NAND_ECC_BCH,
+ NAND_ECC_RS,
};

/*
--
2.17.1