projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| deedeb60 MR |
2 | |
| 3 | menu "NAND" | |
| 4 | ||
| 9c3736a3 BB |
5 | config MTD_NAND_CORE |
| 6 | tristate | |
| 7 | ||
| 26777d37 | 8 | source "drivers/mtd/nand/onenand/Kconfig" |
| 93db446a | 9 | source "drivers/mtd/nand/raw/Kconfig" |
| 7529df46 | 10 | source "drivers/mtd/nand/spi/Kconfig" |
| deedeb60 | 11 | |
| a8c7ffdb MR |
12 | menu "ECC engine support" |
| 13 | ||
| 14 | config MTD_NAND_ECC | |
| 15 | bool | |
| 928f0736 | 16 | select MTD_NAND_CORE |
| a8c7ffdb | 17 | |
| e5acf9c8 | 18 | config MTD_NAND_ECC_SW_HAMMING |
| 5180a62c MR |
19 | bool "Software Hamming ECC engine" |
| 20 | default y if MTD_RAW_NAND | |
| 21 | select MTD_NAND_ECC | |
| 22 | help | |
| 23 | This enables support for software Hamming error | |
| 24 | correction. This correction can correct up to 1 bit error | |
| 25 | per chunk and detect up to 2 bit errors. While it used to be | |
| 26 | widely used with old parts, newer NAND chips usually require | |
| 27 | more strength correction and in this case BCH or RS will be | |
| 28 | preferred. | |
| e5acf9c8 MR |
29 | |
| 30 | config MTD_NAND_ECC_SW_HAMMING_SMC | |
| 31 | bool "NAND ECC Smart Media byte order" | |
| 32 | depends on MTD_NAND_ECC_SW_HAMMING | |
| 33 | default n | |
| 34 | help | |
| 35 | Software ECC according to the Smart Media Specification. | |
| 36 | The original Linux implementation had byte 0 and 1 swapped. | |
| 37 | ||
| cdbe8df5 MR |
38 | config MTD_NAND_ECC_SW_BCH |
| 39 | bool "Software BCH ECC engine" | |
| 40 | select BCH | |
| 41 | select MTD_NAND_ECC | |
| 42 | default n | |
| 43 | help | |
| 44 | This enables support for software BCH error correction. Binary BCH | |
| 45 | codes are more powerful and cpu intensive than traditional Hamming | |
| 46 | ECC codes. They are used with NAND devices requiring more than 1 bit | |
| 47 | of error correction. | |
| 48 | ||
| 48e6633a MR |
49 | config MTD_NAND_ECC_MXIC |
| 50 | bool "Macronix external hardware ECC engine" | |
| 8f877b7e | 51 | depends on HAS_IOMEM |
| 48e6633a MR |
52 | select MTD_NAND_ECC |
| 53 | help | |
| 54 | This enables support for the hardware ECC engine from Macronix. | |
| 55 | ||
| 4fd62f15 CG |
56 | config MTD_NAND_ECC_MEDIATEK |
| 57 | tristate "Mediatek hardware ECC engine" | |
| 58 | depends on HAS_IOMEM | |
| 66d7a40b | 59 | depends on ARCH_MEDIATEK || COMPILE_TEST |
| 4fd62f15 CG |
60 | select MTD_NAND_ECC |
| 61 | help | |
| 62 | This enables support for the hardware ECC engine from Mediatek. | |
| 63 | ||
| a8c7ffdb MR |
64 | endmenu |
| 65 | ||
| deedeb60 | 66 | endmenu |