[meta-freescale] Kernel 3.10 cannot mount rootfs that is in UBIFS format

[Isaac Nickaein]

The vendor hasn't published a Kernel 3.10. I would be glad to add the
support for it, but as they said I have to backport the DTS from 3.16
to 3.10. (In the following you can find their explanation on the
issue).

I am not sure what features has changed between kernel 3.10 and 3.16
DTB parsing
and how
backporting DTS
should be done.

BTW, can DTB be the cause of the boot issue? Once again, boot log of
Kernel 3.10.53: http://pastebin.com/PgT7JY7Q

> As FDT isn't 100% feature stable yet the 3.16 DTB will _not_ work with
> the 3.10 Kernel. If you insist on using the 3.10 Kernel you will have
> to back port our DTS - as provided with our 3.16 sources.

> If you want to use the 3.10 kernel you will have to backport our 3.16
> DTS files and appropriately adapt them if you keep having problems
> with your hardware setup and our DTB.


On Mon, May 4, 2015 at 9:24 PM, Daiane Angolini <daiane.list at gmail.com> wrote:
> On Mon, May 4, 2015 at 6:52 AM, Isaac Nickaein <nickaein.i at gmail.com> wrote:
>> I am trying to use kernel 3.10 on my Ka-Ro TX6Q module, which have a
>> Freescale i.MX6Q.
>>
>> The kernels I have tried are 3.10.17 (inside Yocto Dizzy) and
>> 3.10.53_1.1.0_GA (from Freescale repository:
>> http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/snapshot/rel_imx_3.10.53_1.1.0_ga.tar.bz2)
>>
>> There is some problem in mounting rootfs which is in UBIFS format.  I have
>> enabled "UBIFS filesystem support" and "Advanced compression options" as
>> builtin kernel feature too.
>>
>> Here are the bootlogs:
>>
>> 3.10.17 (Yocto Dizzy): http://pastebin.com/eALLdA3K
>>
>> 3.10.53 (Freescale): http://pastebin.com/PgT7JY7Q
>> The customized Kernel 3.16 provided by Ka-Ro doesn't have this issue:
>>
>> 3.16 (Ka-Ro): http://pastebin.com/RRs75zWG
>>
>> But I prefer to use kernel 3.10 that has better support from Yocto/Freescale
>> community.
>
> I think it would be easier to add the vendor kernel support to yocto.
>
> There are several examples in meta-fsl-arm-extra.
>
> Daiane
>>
>>
>> --
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