[U-Boot-Users] Status of the Yaffs patches?

[William Juul]

The branch Stefan is referring to should contain a working yaffs 
implementation. We have had yaffs working on two boards (ARM and PPC) 
for more than 6 months now.

The outstanding issues on the branch is with respect to the MTD 
implementation (which we ported from current Linux at that time).

We have started to work out (some of) the problems. As we understood, 
the biggest obstacle were missing implementation of read/write.i/jffs. 
We are sending a patch for that to the mailing list now.

Other known issues with our MTD-port is missing commands for lock/unlock 
  and lack of implementation/testing for OneNand.

We would really like for this to go into mainline U-boot, but we need 
help from other developers as well as we do not have necessary HW.

Best regards
William


Stuart Wood wrote:
> Thanks,
> 
> I'll look into it. but I will need to do quite a bit of work to bring
> our u-boot up to the current release. We're about 2 years old and
> running on an EP9302 Arm processor. I'm not sure what we're built off
> from, so extracting our work will take some time. I very much want to
> move to YAFFS since we only have NAND flash storage.
> 
> Stuart
> 
> On Tue, Apr 29, 2008 at 1:08 AM, Stefan Roese <sr at denx.de> wrote:
>> On Monday 28 April 2008, Wolfgang Denk wrote:
>>  > > Can anyone give me an update on the status of integrating YAFFS binary
>>  > > image reading and writing into U-Boot?
>>  >
>>  > I think they got lost, most probably because  the  patches  were  not
>>  > posted inline but just as a reference to some URI.
>>
>>  I'm not sure if that's what Stuart is referring to. YAFFS "binary images" can
>>  be read and written without problems with the current code (since years). You
>>  need to use the ".jffs2/.i" option for skipping bad blocks.
>>
>>  But if you are referring to the YAFFS filesystem support in U-Boot, then the
>>  work Wolfgang is referring to is currently available in the mtd-2.6.22.1
>>  branch of the u-boot-nand-flash repository. I have to admit that I'm not sure
>>  if the YAFFS support has already been integrated though. Unfortunately this
>>  branch still has some problems and I didn't get enough feedback/patches to
>>  fix those problems. So we can't merge this stuff into mainline yet.
>>
>>  Best regards,
>>  Stefan
>>
>>  =====================================================================
>>
>> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
>>  HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
>>  Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
>>  =====================================================================
>>