tree 77824e8f6861c68b4151824d2e25cfb1216ee784
parent 852dbfdd56f68eb67d138b306a64e4de58dabb91
author Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1238145674 +0100
committer Wolfgang Denk <wd@denx.de> 1238877862 +0200

UBIFS: add R/O compatibility

Now UBIFS is supported by u-boot. If we ever decide to change the
media format, then people will have to upgrade their u-boots to
mount new format images. However, very often it is possible to
preserve R/O forward-compatibility, even though the write
forward-compatibility is not preserved.

This patch introduces a new super-block field which stores the
R/O compatibility version.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: Adrian Hunter <Adrian.Hunter@nokia.com>
Signed-off-by: Stefan Roese <sr@denx.de>