diff options
Diffstat (limited to 'drivers/mtd/nand/Kconfig')
| -rw-r--r-- | drivers/mtd/nand/Kconfig | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 4a9aed4f0104..b40455234cbd 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -13,7 +13,38 @@ menu "ECC engine support" config MTD_NAND_ECC bool - depends on MTD_NAND_CORE + 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 |