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- # SPDX-License-Identifier: GPL-2.0-only
- menu "NAND"
- config MTD_NAND_CORE
- tristate
- source "drivers/mtd/nand/onenand/Kconfig"
- source "drivers/mtd/nand/raw/Kconfig"
- source "drivers/mtd/nand/spi/Kconfig"
- menu "ECC engine support"
- config MTD_NAND_ECC
- bool
- select MTD_NAND_CORE
- config MTD_NAND_ECC_SW_HAMMING
- bool "Software Hamming ECC engine"
- default y if MTD_RAW_NAND
- select MTD_NAND_ECC
- help
- This enables support for software Hamming error
- correction. This correction can correct up to 1 bit error
- per chunk and detect up to 2 bit errors. While it used to be
- widely used with old parts, newer NAND chips usually require
- more strength correction and in this case BCH or RS will be
- preferred.
- config MTD_NAND_ECC_SW_HAMMING_SMC
- bool "NAND ECC Smart Media byte order"
- depends on MTD_NAND_ECC_SW_HAMMING
- default n
- help
- Software ECC according to the Smart Media Specification.
- The original Linux implementation had byte 0 and 1 swapped.
- config MTD_NAND_ECC_SW_BCH
- bool "Software BCH ECC engine"
- select BCH
- select MTD_NAND_ECC
- default n
- help
- This enables support for software BCH error correction. Binary BCH
- codes are more powerful and cpu intensive than traditional Hamming
- ECC codes. They are used with NAND devices requiring more than 1 bit
- of error correction.
- config MTD_NAND_ECC_MXIC
- bool "Macronix external hardware ECC engine"
- depends on HAS_IOMEM
- select MTD_NAND_ECC
- help
- This enables support for the hardware ECC engine from Macronix.
- config MTD_NAND_ECC_MEDIATEK
- tristate "Mediatek hardware ECC engine"
- depends on HAS_IOMEM
- depends on ARCH_MEDIATEK || COMPILE_TEST
- select MTD_NAND_ECC
- help
- This enables support for the hardware ECC engine from Mediatek.
- endmenu
- endmenu
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