Lines Matching +full:2 +full:- +full:layered
1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "Enable UBI - Unsorted block images"
6 UBI is a software layer above MTD layer which admits use of LVM-like
10 (www.linux-mtd.infradead.org).
15 int "UBI wear-leveling threshold"
17 range 2 65536
26 other flashes which have eraseblock life-cycle 100000 or more.
28 life-cycle less than 10000, the threshold should be lessened (e.g.,
29 to 128 or 256, although it does not have to be power of 2).
44 as "1024 * (1 - MinNVB / MaxNVB)", which gives 20 for most NANDs
64 Important: this feature is experimental so far and the on-flash
70 The on-flash fastmap contains all information needed to attach
74 fm_autoconvert to 1 if you want so. Please note that fastmap-enabled
84 This option enables gluebi - an additional driver which emulates MTD
87 volume. This is handy to make MTD-oriented software (like JFFS2)
92 bool "Read-only block devices on top of UBI volumes"
96 This option enables read-only UBI block devices support. UBI block
97 devices will be layered on top of UBI volumes, which means that the
99 bit-flips. You can put any block-oriented file system on top of UBI
100 volumes in read-only mode (e.g., ext4), but it is probably most
101 practical for read-only file systems, like squashfs.
112 This option enables fault-injection support for UBI devices for
124 specification and used to store also e.g. MAC addresses or board-
125 specific Wi-Fi calibration data.