+++ /dev/null
-#
-# yaffs file system configurations
-#
-
-config YAFFS_FS
- tristate "yaffs2 file system support"
- default n
- depends on MTD_BLOCK
- select YAFFS_YAFFS1
- select YAFFS_YAFFS2
- help
- yaffs2, or Yet Another Flash File System, is a file system
- optimised for NAND Flash chips.
-
- To compile the yaffs2 file system support as a module, choose M
- here: the module will be called yaffs2.
-
- If unsure, say N.
-
- Further information on yaffs2 is available at
- <http://www.aleph1.co.uk/yaffs/>.
-
-config YAFFS_YAFFS1
- bool "512 byte / page devices"
- depends on YAFFS_FS
- default y
- help
- Enable yaffs1 support -- yaffs for 512 byte / page devices
-
- Not needed for 2K-page devices.
-
- If unsure, say Y.
-
-config YAFFS_9BYTE_TAGS
- bool "Use older-style on-NAND data format with pageStatus byte"
- depends on YAFFS_YAFFS1
- default n
- help
-
- Older-style on-NAND data format has a "pageStatus" byte to record
- chunk/page state. This byte is zero when the page is discarded.
- Choose this option if you have existing on-NAND data using this
- format that you need to continue to support. New data written
- also uses the older-style format. Note: Use of this option
- generally requires that MTD's oob layout be adjusted to use the
- older-style format. See notes on tags formats and MTD versions
- in yaffs_mtdif1.c.
-
- If unsure, say N.
-
-config YAFFS_DOES_ECC
- bool "Lets yaffs do its own ECC"
- depends on YAFFS_FS && YAFFS_YAFFS1 && !YAFFS_9BYTE_TAGS
- default n
- help
- This enables yaffs to use its own ECC functions instead of using
- the ones from the generic MTD-NAND driver.
-
- If unsure, say N.
-
-config YAFFS_ECC_WRONG_ORDER
- bool "Use the same ecc byte order as Steven Hill's nand_ecc.c"
- depends on YAFFS_FS && YAFFS_DOES_ECC && !YAFFS_9BYTE_TAGS
- default n
- help
- This makes yaffs_ecc.c use the same ecc byte order as Steven
- Hill's nand_ecc.c. If not set, then you get the same ecc byte
- order as SmartMedia.
-
- If unsure, say N.
-
-config YAFFS_YAFFS2
- bool "2048 byte (or larger) / page devices"
- depends on YAFFS_FS
- default y
- help
- Enable yaffs2 support -- yaffs for >= 2K bytes per page devices
-
- If unsure, say Y.
-
-config YAFFS_AUTO_YAFFS2
- bool "Autoselect yaffs2 format"
- depends on YAFFS_YAFFS2
- default y
- help
- Without this, you need to explicitely use yaffs2 as the file
- system type. With this, you can say "yaffs" and yaffs or yaffs2
- will be used depending on the device page size (yaffs on
- 512-byte page devices, yaffs2 on 2K page devices).
-
- If unsure, say Y.
-
-config YAFFS_DISABLE_TAGS_ECC
- bool "Disable yaffs from doing ECC on tags by default"
- depends on YAFFS_FS && YAFFS_YAFFS2
- default n
- help
- This defaults yaffs to using its own ECC calculations on tags instead of
- just relying on the MTD.
- This behavior can also be overridden with tags_ecc_on and
- tags_ecc_off mount options.
-
- If unsure, say N.
-
-config YAFFS_ALWAYS_CHECK_CHUNK_ERASED
- bool "Force chunk erase check"
- depends on YAFFS_FS
- default n
- help
- Normally yaffs only checks chunks before writing until an erased
- chunk is found. This helps to detect any partially written
- chunks that might have happened due to power loss.
-
- Enabling this forces on the test that chunks are erased in flash
- before writing to them. This takes more time but is potentially
- a bit more secure.
-
- Suggest setting Y during development and ironing out driver
- issues etc. Suggest setting to N if you want faster writing.
-
- If unsure, say Y.
-
-config YAFFS_EMPTY_LOST_AND_FOUND
- bool "Empty lost and found on boot"
- depends on YAFFS_FS
- default n
- help
- If this is enabled then the contents of lost and found is
- automatically dumped at mount.
-
- If unsure, say N.
-
-config YAFFS_DISABLE_BLOCK_REFRESHING
- bool "Disable yaffs2 block refreshing"
- depends on YAFFS_FS
- default n
- help
- If this is set, then block refreshing is disabled.
- Block refreshing infrequently refreshes the oldest block in
- a yaffs2 file system. This mechanism helps to refresh flash to
- mitigate against data loss. This is particularly useful for MLC.
-
- If unsure, say N.
-
-config YAFFS_DISABLE_BACKGROUND
- bool "Disable yaffs2 background processing"
- depends on YAFFS_FS
- default n
- help
- If this is set, then background processing is disabled.
- Background processing makes many foreground activities faster.
-
- If unsure, say N.
-
-config YAFFS_XATTR
- bool "Enable yaffs2 xattr support"
- depends on YAFFS_FS
- default y
- help
- If this is set then yaffs2 will provide xattr support.
- If unsure, say Y.
projects / yaffs2.git / blobdiff