There is currently a confusion between the ECC type/mode/provider
(eg. on-host, software, on-die or none) and the ECC bytes placement.
Create a new enumeration to describe this placement.
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Reviewed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
---
drivers/mtd/nand/raw/nand_base.c | 5 +++++
include/linux/mtd/rawnand.h | 14 ++++++++++++++
2 files changed, 19 insertions(+)
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index bd3f5a875e39..4d2d444f9db9 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -5018,6 +5018,11 @@ static const char * const nand_ecc_modes[] = {
[NAND_ECC_ON_DIE] = "on-die",
};
+static const char * const nand_ecc_placement[] = {
+ [NAND_ECC_PLACEMENT_OOB] = "oob",
+ [NAND_ECC_PLACEMENT_INTERLEAVED] = "interleaved",
+};
+
static int of_get_nand_ecc_mode(struct device_node *np)
{
const char *pm;
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 65b1c1c18b41..5e014807e050 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -92,6 +92,20 @@ enum nand_ecc_mode {
NAND_ECC_ON_DIE,
};
+/**
+ * enum nand_ecc_placement - NAND ECC bytes placement
+ * @NAND_ECC_PLACEMENT_UNKNOWN: The actual position of the ECC bytes is unknown
+ * @NAND_ECC_PLACEMENT_OOB: The ECC bytes are located in the OOB area
+ * @NAND_ECC_PLACEMENT_INTERLEAVED: Syndrome layout, there are ECC bytes
+ * interleaved with regular data in the main
+ * area
+ */
+enum nand_ecc_placement {
+ NAND_ECC_PLACEMENT_UNKNOWN,
+ NAND_ECC_PLACEMENT_OOB,
+ NAND_ECC_PLACEMENT_INTERLEAVED,
+};
+
enum nand_ecc_algo {
NAND_ECC_UNKNOWN,
NAND_ECC_HAMMING,
--
2.20.1
