[PATCH v3 05/40] mtd: rawnand: Create a new enumeration to describe properly ECC types
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: 2019-09-19 19:38:42
Subsystem:
memory technology devices (mtd), nand flash subsystem, the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
Now that the misleading mix between ECC engine type and OOB placement has been addressed, add a new enumeration to properly define ECC types (also called provider or mode). Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- drivers/mtd/nand/raw/nand_base.c | 7 +++++++ include/linux/mtd/rawnand.h | 16 ++++++++++++++++ 2 files changed, 23 insertions(+)
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 9a05ebfc44d1..00a261284aad 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c@@ -4842,6 +4842,13 @@ static const char * const nand_ecc_modes[] = { [NAND_ECC_ON_DIE] = "on-die", }; +static const char * const nand_ecc_engine_providers[] = { + [NAND_NO_ECC_ENGINE] = "none", + [NAND_SOFT_ECC_ENGINE] = "soft", + [NAND_HW_ECC_ENGINE] = "hw", + [NAND_ON_DIE_ECC_ENGINE] = "on-die", +}; + static const char * const nand_ecc_engine_oob_placement[] = { [NAND_ECC_SYNDROME_OOB_PLACEMENT] = "hw_syndrome", [NAND_ECC_OOB_FIRST_PLACEMENT] = "hw_oob_first",
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 1b462fb2ab77..23feab162bc2 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h@@ -93,6 +93,22 @@ enum nand_ecc_mode { NAND_ECC_ON_DIE, }; +/** + * enum nand_ecc_engine_type - NAND ECC engine type/provider + * @NAND_INVALID_ECC_ENGINE: Invalid value + * @NAND_NO_ECC_ENGINE: No ECC correction + * @NAND_SOFT_ECC_ENGINE: Software ECC correction + * @NAND_HW_ECC_ENGINE: Hardware (controller side) ECC correction + * @NAND_ON_DIE_ECC_ENGINE: Hardware (chip side) ECC correction + */ +enum nand_ecc_engine_type { + NAND_INVALID_ECC_ENGINE, + NAND_NO_ECC_ENGINE, + NAND_SOFT_ECC_ENGINE, + NAND_HW_ECC_ENGINE, + NAND_ON_DIE_ECC_ENGINE, +}; + /** * enum nand_ecc_engine_oob_placement - NAND ECC engine OOB placement * @NAND_ECC_DEFAULT_OOB_PLACEMENT: Standard layout, or not specified
--
2.20.1
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