JFFS2 porting status

Chris Chelmecki chris.chelmecki at gmail.com
Sat Feb 7 01:46:17 UTC 2009

On Fri, Feb 6, 2009 at 5:58 PM, Chris Johns <chrisj at rtems.org> wrote:
> Chris Chelmecki wrote:
>> I'm new to RTEMS and am investigating using it in a project on a
>> powerpc(MPC5121- e300 core).  One of the things we would need is a
>> robust flash file system.
> What robust requirements do you need ?

Our devices are constantly logging data, so we would need some kind of
wear levelling and would want to have protection against file
corruption in the event of power loss while logging.

> There is a libblock flash driver in RTEMS. This lets any file system
> supported by libblock be handled by flash. Have you looked at this driver ?

I just assumed that the MSDOS/FAT file system wouldn't fit the bill.
Does the libblock flash driver support wear levelling?  The File
Systems wiki page mentioned that journalling could be added to the
libblock flash driver, any thoughts on difficulty?


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