From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] dfu: dfu and UBI Volumes
Date: Fri, 24 May 2013 13:12:13 -0400 [thread overview]
Message-ID: <20130524171213.GT17119@bill-the-cat> (raw)
In-Reply-To: <6AD958CB-3CFC-4362-B72D-511147D041AC@antoniou-consulting.com>
On Fri, May 24, 2013 at 07:42:01PM +0300, Pantelis Antoniou wrote:
> Hi Heiko,
>
> On May 24, 2013, at 7:39 PM, Heiko Schocher wrote:
>
> > Hello,
> >
> > just digging in DFU support in U-Boot for an upcoming board support
> > based on an AM335x. This board support uses for example a rootfs in
> > an UBI Volume on a NAND flash, and this should be updated with dfu ...
> >
> > How To do this? Current state on this board is to erase the rootfs
> > mtd partition with a nand erase and write the new image using
> > dfu_nand.c ... which calls in the end nand_write ... which is ...
> > lets say ... not the prefered way on an UBI volume ...
> >
> > How to solve this? Any ideas?
>
> Well, what would you like ideally to do? Why is nand_write not ideal for
> a UBI volume.
>
> Note that dfu will skip over the bad blocks...
Presumably because they want to replace say ubi0:rootfs (and leave
ubi0:user-data and ubi0:u-boot-env and so forth alone) rather than write
in a new ubi container of everything.
I would suggest that, so long as our existing UBI infrastructure allows
this, you add a new method, dfu_ubi which takes care of programming
things. This shouldn't be too bad to write as I've heard the existing
infrastucture was easily expanded for SPI (and patches are pending a
little more clean up prior to posting).
--
Tom
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next prev parent reply other threads:[~2013-05-24 17:12 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-24 16:39 [U-Boot] dfu: dfu and UBI Volumes Heiko Schocher
2013-05-24 16:42 ` Pantelis Antoniou
2013-05-24 17:12 ` Tom Rini [this message]
2013-05-26 7:09 ` Heiko Schocher
2013-05-27 7:02 ` Lukasz Majewski
2013-05-27 7:28 ` Heiko Schocher
2013-05-27 7:35 ` Pantelis Antoniou
2013-05-27 7:45 ` Heiko Schocher
2013-05-27 16:25 ` Wolfgang Denk
2013-05-27 16:29 ` Pantelis Antoniou
2013-05-27 20:41 ` Tom Rini
2013-05-27 21:25 ` Wolfgang Denk
2013-05-27 23:37 ` Tom Rini
2013-05-28 5:50 ` Wolfgang Denk
2013-05-28 15:01 ` Tom Rini
2013-05-28 15:05 ` Pantelis Antoniou
2013-05-28 16:31 ` Benoît Thébaudeau
2013-05-28 16:43 ` Pantelis Antoniou
2013-05-28 16:43 ` Benoît Thébaudeau
2013-05-28 16:53 ` Pantelis Antoniou
2013-05-28 17:23 ` Tom Rini
2013-05-28 21:01 ` Wolfgang Denk
2013-05-28 21:16 ` Tom Rini
2013-05-29 4:35 ` Heiko Schocher
2013-05-29 12:09 ` Tom Rini
2013-05-28 3:42 ` Heiko Schocher
2013-05-28 5:55 ` Wolfgang Denk
2013-05-28 15:35 ` Tom Rini
2013-05-28 4:10 ` Heiko Schocher
2013-05-27 19:21 ` Tom Rini
2013-05-28 4:04 ` Heiko Schocher
2013-05-28 5:58 ` Wolfgang Denk
2013-05-28 6:24 ` Heiko Schocher
2013-05-28 16:00 ` Tom Rini
2013-05-24 18:41 ` Wolfgang Denk
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