Re: No sound on nitrogen6x + linux-boundary 3.10.17

[Eric Nelson <eric.nelson@boundarydevices.com>]

Hi Erik,

On 05/07/2014 01:02 AM, Erik Botö wrote:
> On Tue, May 6, 2014 at 8:16 PM, Eric Nelson
> <eric.nelson@boundarydevices.com> wrote:
>> Hi Erik,
>>
>
> <snip>
>
>>
>> I just tested against this image, revision fe41f1e of our kernel
>> and nitrogen6x_defconfig on a Nitrogen6x and things worked
>> perfectly through a handful of re-boots:
>>
>>          http://boundarydevices.com/yocto-kernel-3-10-17-beta/
>>
>> Let me know if you'd like me to upload a binary kernel package.
>
> Thanks for helping out!
>

No problem. That's what we're here for.

> After testing this out and getting really confused about it still not
> working I started to look through the early boot output on the serial
> console looking for some board revision info. Then I noticed that it
> used the sabrelite version of the device tree file since board was
> unset in u-boot. By doing a "setenv board nitrogen6x" in u-boot before
> booting, which makes it use the correct dtb-file, sound works like a
> charm. So I guess it was a user error all along, although a
> not-so-obvious one :)
>
> After upgrading u-boot on the board from "U-Boot
> 2013.01-00058-g5957f6d" to "U-Boot 2014.04" the board variable is set
> by default and hence everything works out-of-the-box.
>

Thanks for the note about this. Since upgrading U-Boot is a
separate operation for our boards, we'll likely have others
hit the same thing as they make the transition to DT.

Regards,


Eric