diff options
Diffstat (limited to 'drivers/mtd/ubi/Kconfig')
| -rw-r--r-- | drivers/mtd/ubi/Kconfig | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/drivers/mtd/ubi/Kconfig b/drivers/mtd/ubi/Kconfig index ea4b95b5451c..76195ac90e51 100644 --- a/drivers/mtd/ubi/Kconfig +++ b/drivers/mtd/ubi/Kconfig @@ -34,13 +34,25 @@ config MTD_UBI_BEB_RESERVE help If the MTD device admits of bad eraseblocks (e.g. NAND flash), UBI reserves some amount of physical eraseblocks to handle new bad - eraseblocks. For example, if a flash physical eraseblock becomes bad, - UBI uses these reserved physical eraseblocks to relocate the bad one. - This option specifies how many physical eraseblocks will be reserved - for bad eraseblock handling (percents of total number of good flash - eraseblocks). If the underlying flash does not admit of bad - eraseblocks (e.g. NOR flash), this value is ignored and nothing is - reserved. Leave the default value if unsure. + eraseblocks. When a physical eraseblock becomes bad, UBI uses these + reserved physical eraseblocks to relocate the bad one. This + configuration option specifies how many physical eraseblocks will be + reserved for bad eraseblock handling (percents of total number of + good physical eraseblocks on this MTD partition). If the underlying + flash does not admit of bad eraseblocks (e.g. NOR flash), this value + is ignored and nothing is reserved. Leave the default value if + unsure. + +config MTD_UBI_BEB_LIMIT + int "Percentage of maximum expected bad eraseblocks" + default 2 + range 0 25 + help + This option specifies the maximum bad physical eraseblocks UBI + expects on the UBI device (percents of total number of physical + eraseblocks on this MTD partition). If the underlying flash does not + admit of bad eraseblocks (e.g. NOR flash), this value is ignored. + Leave the default value if unsure. config MTD_UBI_GLUEBI tristate "MTD devices emulation driver (gluebi)" |