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| author | Thomas Gleixner | 2006-05-23 11:32:45 +0200 |
|---|---|---|
| committer | Thomas Gleixner | 2006-05-23 11:32:45 +0200 |
| commit | 819d6a32c397534c819d3c72a3947b7e7e4bec4b (patch) | |
| tree | e5c25ca9545014a4512102629d09b42438cb378d /drivers/mtd/nand/Kconfig | |
| parent | [JFFS2] Initialise ref->next_in_ino when marking dirty space in wbuf flush (diff) | |
| download | kernel-qcow2-linux-819d6a32c397534c819d3c72a3947b7e7e4bec4b.tar.gz kernel-qcow2-linux-819d6a32c397534c819d3c72a3947b7e7e4bec4b.tar.xz kernel-qcow2-linux-819d6a32c397534c819d3c72a3947b7e7e4bec4b.zip | |
[MTD] Improve software ECC calculation
Unrolling the loops produces denser and much faster code.
Add a config switch which allows to select the byte order of the
resulting ecc code. The current Linux implementation has a byte
swap versus the SmartMedia specification
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/mtd/nand/Kconfig')
| -rw-r--r-- | drivers/mtd/nand/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 2d0ebad55a49..4d235b91267d 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -23,6 +23,14 @@ config MTD_NAND_VERIFY_WRITE device thinks the write was successful, a bit could have been flipped accidentaly due to device wear or something else. +config MTD_NAND_ECC_SMC + bool "NAND ECC Smart Media byte order" + depends on MTD_NAND + default n + help + Software ECC according to the Smart Media Specification. + The original Linux implementation had byte 0 and 1 swapped. + config MTD_NAND_AUTCPU12 tristate "SmartMediaCard on autronix autcpu12 board" depends on MTD_NAND && ARCH_AUTCPU12 |