[meta-freescale] imx28evk based board moving from fido to jethro stopped to fully boot

justin chaise justinchaisejmc1 at gmail.com
Mon Dec 14 06:14:35 PST 2015


Before I assumed..
I should have asked what was the last thing you saw on your screen before
it went blank?

On Mon, Dec 14, 2015 at 8:08 AM, justin chaise <justinchaisejmc1 at gmail.com>
wrote:

> Hi, I am working with a board that is almost the same as the imx23evk, the
> imx28evk sibling.
> It seems that not all of our, MXS family, drivers were ported to the newer
> kernels.
> If fido booted and you saw a login on the lcd you may be in good shape.
>
> When you see the penguin logo that is the bootloader, u-boot, initializing
> the hardware.
> If the screen goes away after that; linux is not using or initializing the
> lcd. It may be using the serial port.
> First I would check the linux kernel command line switches in your device
> tree under chosen --> bootargs.
> Compare that to the settings you used with fido (linux-fslc 3.18?)
> Second check the boot arguments in u-boot. These settings will overwrite
> the command line switches from your device tree.
> I you can not type at the command line in u-boot, you can change the boot
> arguments in the code then recompile u-boot
> see (include/configs/mx28evk.h)
> I hope this starts you in the right direction.
>
> On Mon, Dec 14, 2015 at 3:34 AM, Ivan Sergio Borgonovo <
> mail at webthatworks.it> wrote:
>
>> I've a board that just need a couple of patches to device tree compared
>> to the imx28evk board:
>> - configuration of serial ports
>> - display timing
>>
>> It was fully booting with fido (linux-fsl) and I was able to see the
>> login prompt on the screen.
>>
>> Now I see the penguin logo and no more login prompt.
>>
>> While I wait to have a cable to connect a serial console this is the only
>> information I can provide.
>>
>> I was reading
>>
>> http://www.yoctoproject.org/docs/2.0/mega-manual/mega-manual.html#moving-to-the-yocto-project-2.0-release
>>
>> http://freescale.github.io/doc/release-notes/2.0/#known-issues
>>
>> but nothing seems relevant unless the gcc problem is relevant for the
>> current status of linux-fsl kernel (4.1).
>>
>> Since my only changes to the imx28evk are related to dt and the screen
>> does seem to work I'd be tempted to say the problem is elsewhere.
>> I had to adjust local.conf just to cope with a couple of changes in qt5
>> and gstreamer, but software that shouldn't have any impact on boot.
>>
>> Any clue that may help me to fix this while I wait for cable?
>> Has anyone tested imx28evk with jethro?
>>
>>
>> thanks
>>
>> --
>> Ivan Sergio Borgonovo
>> http://www.webthatworks.it
>>
>> --
>> _______________________________________________
>> meta-freescale mailing list
>> meta-freescale at yoctoproject.org
>> https://lists.yoctoproject.org/listinfo/meta-freescale
>>
>
>
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