diff options
| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2022-02-02 15:45:36 +0100 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2022-02-10 09:32:30 +0100 |
| commit | 00360ebae483e603d55ec9a7231b787cb80ffe13 (patch) | |
| tree | 896d1b7f2add039af3365230230c64cf0e18aae1 /include/linux/mtd/nand-ecc-mxic.h | |
| parent | 33fce1d8bfa8220eb3edf5b3691a411a9191d0b1 (diff) | |
spi: mxic: Add support for pipelined ECC operations
Some SPI-NAND chips do not have a proper on-die ECC engine providing
error correction/detection. This is particularly an issue on embedded
devices with limited resources because all the computations must
happen in software, unless an external hardware engine is provided.
These external engines are new and can be of two categories: external
or pipelined. Macronix is providing both, the former being already
supported. The second, however, is very SoC implementation dependent
and must be instantiated by the SPI host controller directly.
An entire subsystem has been contributed to support these engines which
makes the insertion into another subsystem such as SPI quite
straightforward without the need for a lot of specific functions.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/linux-mtd/20220202144536.393792-1-miquel.raynal@bootlin.com
Diffstat (limited to 'include/linux/mtd/nand-ecc-mxic.h')
| -rw-r--r-- | include/linux/mtd/nand-ecc-mxic.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mtd/nand-ecc-mxic.h b/include/linux/mtd/nand-ecc-mxic.h index f3aa1ac82aed..b125926e458c 100644 --- a/include/linux/mtd/nand-ecc-mxic.h +++ b/include/linux/mtd/nand-ecc-mxic.h @@ -14,7 +14,7 @@ struct mxic_ecc_engine; -#if IS_ENABLED(CONFIG_MTD_NAND_ECC_MXIC) +#if IS_ENABLED(CONFIG_MTD_NAND_ECC_MXIC) && IS_REACHABLE(CONFIG_MTD_NAND_CORE) struct nand_ecc_engine_ops *mxic_ecc_get_pipelined_ops(void); struct nand_ecc_engine *mxic_ecc_get_pipelined_engine(struct platform_device *spi_pdev); |