erase block < 8KiB

[Artem Bityutskiy]

On Mon, 2011-10-03 at 10:52 +0200, angelo wrote:
> Hi all,
> 
> i read several mail about this limitation.
> 
> http://lists.infradead.org/pipermail/linux-mtd/2011-February/033851.html
> http://lists.infradead.org/pipermail/linux-mtd/2011-June/036498.html
> 
> 
> I have a 4 KiB erase-size, common of some SST nor flash'es like mine 
> (SST 39VF3201B).
> 
>  From all the posts i read here in the list, there seems not to be any 
> solution guaranteed.
> 
> The tricky change to mkfs.jffs2 don't work for me. It seems to work for 
> small files, but i still get error messages copying a 600KB file in the 
> partition.
> If it's true that the minimal jffs2 block is 4KB + some bytes, of course 
> the patch to mkfs.jffs2 can't work.
> 
> Some one suggested the "virtual erase block" solution. I would like to 
> try to implement it, if i have the time.
> 
> In any case, for the common users, is there maybe another flash file 
> system that can work with 4KiB erase size ?

Just hack your driver and make it emulate larger eraseblocks and make
JFFS2 happy. Should not be difficult.

-- 
Best Regards,
Artem Bityutskiy