[meta-freescale] [meta-fsl-arm] Build for SabreSD?

[Nikolay Dimitrov]

Hi Gary,

On 04/07/2015 08:16 PM, Gary Thomas wrote:
> On 2015-04-07 11:12, Nikolay Dimitrov wrote:
>> Hi Gary,
>>
>> On 04/07/2015 06:23 PM, Gary Thomas wrote:
>>> On 2015-04-07 07:16, Otavio Salvador wrote:
>>>> Hello Gary,
>>>>
>>>> On Tue, Apr 7, 2015 at 9:59 AM, Gary Thomas <gary at mlbassoc.com> wrote:
>>>>> I'm trying to build for SabreSD using the current master:
>>>>>    MACHINE           = "imx6qsabresd"
>>>>>    meta              =
>>>>> "master:9e4adec98db325112ca7a8b9dd95722d4d0ab642"
>>>>>    meta-fsl-arm      =
>>>>> "master:bfe01a0ebde407086f4a7710ea165c6beff310d7"
>>>>>    meta-fsl-arm-extra =
>>>>> "master:49843fbd4cdfcdd37ad191dbf4bdc63e06cf1e0e"
>>>>>
>>>>> Out of the box, I get this error/warning:
>>>>> ERROR: Multiple .bb files are due to be built which each provide
>>>>> virtual/kernel
>>>>> (/local/poky-master/meta-fsl-arm/recipes-kernel/linux/linux-imx-rt_3.10.31.bb
>>>>>
>>>>>
>>>>> /local/poky-master/meta-fsl-arm/recipes-kernel/linux/linux-fslc_3.19.bb).
>>>>>
>>>>>
>>>>>   This usually means one provides something the other doesn't and
>>>>> should.
>>>>
>>>> I will check.
>>>>
>>>>> Which kernel should this board use?  Is it compatible with
>>>>> the latest (3.10.53 based) graphics?
>>>>
>>>> The 3.10.53 kernel works fine with SabreSD.
>>>
>>> Thanks, I got that going.  However, I don't have anything on HDMI in
>>> Linux
>>> (U-Boot does see it and puts up the FreeScale logo).
>>>
>>> What do I need to get Linux to use the HDMI video?  Some command line
>>> option?
>>
>> As far as I remember, there are no video arguments passed to the
>> kernel, so you can check this out.
>
> What do you mean?
>
> I'm not getting any HDMI video from Linux, but I am from U-Boot, so
> there needs to be something else...

Exactly. In order to have a working video interface in Linux, you need
to pass the proper bootargs to the kernel, like this:

setenv bootargs console=... root=... video=mxcfb0:dev=hdmi,1280x800M at 60

>>>>> n.b. I'm chasing some i.MX6 HDMI video issues and trying to use
>>>>> this board as a reference.
>>>>
>>>> Oh, those... Nitrogen has got 3.10.53 last days as well.

Regards,
Nikolay