| # 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. |
| |
| endmenu |
| |
| endmenu |
