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-rw-r--r--drivers/mtd/nand/Kconfig66
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
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+++ b/drivers/mtd/nand/Kconfig
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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