diff options
Diffstat (limited to 'drivers/mtd/nand/Kconfig')
| -rw-r--r-- | drivers/mtd/nand/Kconfig | 69 |
1 files changed, 68 insertions, 1 deletions
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 9033215e62ea..1e57c8de8578 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -1,7 +1,74 @@ +# 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. + +config MTD_NAND_ECC_REALTEK + tristate "Realtek RTL93xx hardware ECC engine" + depends on HAS_IOMEM && HAS_DMA + depends on MACH_REALTEK_RTL || COMPILE_TEST + select MTD_NAND_ECC + help + This enables support for the hardware ECC engine from Realtek. + +endmenu + +endmenu |