Re: ubifs crossupport between Linux and U-Boot

[Denys Dmytriyenko <denys@ti.com>]

+Tom Rini

Tom, can you please comment? Thanks.


On Wed, Jan 29, 2014 at 05:20:26PM +0200, matti kaasinen wrote:
> In short:
> If I create UBIFS partition on Linux side, it works quite fine. I can
> create directories, files update them without  problems. But if I open this
> volume on U-Boot side, I'll get thousands of ecc error messages. Now, if I
> try to access this same volume from Linux side after this episode, it also
> provides these ecc errors. Therefore, Linux created UBIFS partition gets
> corrupted by accessing it from U-Boot side. Volume opening is enough for
> this. This I have experienced by Angstrom distribution with Linux 3.8.13
> and it possibly was U-Boot 10.04. Anyhow, as it seems that you are now
> working with Linux 3.12 - U-Boot 2013-10 combination, you'll need patching
> to cope with this issue. By my understanding required patching is not made
> before U-Boot 2014-01 and Linux 3.14.
> 
> Patching required include:
> Quote from Pekon's answer to me:
> 
> "
> I don't think any earlier kernel versions ever supported beaglebone
> Its only recently that a major patch-series of NAND driver was
> accepted and  tested on beaglebone.
> The patches  are currently in l2-mtd.git tree which should make into
> 3.13 kernel, before being in linux-next for sometime.
> (a) Reference:
> http://lists.infradead.org/pipermail/linux-mtd/2013-October/049462.html
> 
> (b) In addition to above series, you might need beaglebone DTS updates
> which you can refer from below ..
> http://lists.infradead.org/pipermail/linux-mtd/2013-October/049438.html
> "
> 
> U-Boot patching over U-Boot 2013-10 should be found from:
> http://patchwork.ozlabs.org/project/uboot/list/?submitter=17320&state=*.
> 
> I'm not sure how valid above link is anymore. Maybe Pekon can comment that.
> 
> -Matti
> 
> 2014-01-29 Denys Dmytriyenko <denys@ti.com>
> 
> > On Mon, Jan 20, 2014 at 04:29:52PM +0200, matti kaasinen wrote:
> > > Hi!
> > >
> > > I Have been using Angstrom distribution for my beaglebone (+ nand flash)
> > > based board. Problem with Angstrom baked Linux/U-boot images is that
> > > whereas both support ubifs partition on nand flash they both seem to
> > handle
> > > it in their own ways. Does Aragon distribution have this same problem?
> >
> > Can you please provide more detailed report for the issue? Otherwise it's
> > quite difficult to give any recommendations. Thanks.
> >
> > --
> > Denys
> >