8f877b7eab
Avoid random build errors with architectures which do not select HAS_IOMEM by depending on it in Kconfig. This fixes the following warning: /home/mraynal/0day/gcc-11.2.0-nolibc/s390-linux/bin/s390-linux-ld: drivers/mtd/nand/ecc-mxic.o: in function `mxic_ecc_probe': ecc-mxic.c:(.text+0x2244): undefined reference to `devm_platform_ioremap_resource' Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20220314152336.75447-1-miquel.raynal@bootlin.com
59 lines
1.5 KiB
Plaintext
59 lines
1.5 KiB
Plaintext
# 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.
|
|
|
|
endmenu
|
|
|
|
endmenu
|