[yocto] [meta-raspberrypi] Building rpi-test-image for Pi3 64 bit

[Andrea Galbusera]

Il 03 mag 2017 6:19 PM, "Luca Carlon" <carlon.luca at gmail.com> ha scritto:

What I'd like to be able to do is setup is a 64bit system including the
libraries from the userland repo: https://github.com/raspberrypi/userland.
I suspect vc4graphic is something different, isn't it?
But maybe you're right and those libs will never be built, as I see that
according to https://github.com/raspberrypi/userland/pull/347 not
everything builds in userland. In the recipe I however see that the ARM64
macro is defined and so I'm asking myself which libraries are currently
supported and which are not. Anyone who knows?
Thank you!


As far as I know, machine configuration for raspberrypi3-64, at least in
master branch of meta-raspberry does set vc4graphic in MACHINE_FEATURES,
which in turn selects mesa instead of userland exclusively. This is what
the metadata say, and what I recently experimented myself while switching
to 64bit builds. I'm not using graphics, but found convenient to monitor
RPi temperature via vcgencmd tool that comes with userland. Had a recipe of
mine RDEPENDing on userland and found out that this was breaking the 64bit
build. For me it was just a matter of using a different source for
temperature monitoring. In the end, Herve's explanation gives the more
technical background.



Luca

On Wed, May 3, 2017 at 2:35 PM, Khem Raj <raj.khem at gmail.com> wrote:

>
> On Wed, May 3, 2017 at 8:28 AM Luca Carlon <carlon.luca at gmail.com> wrote:
>
>> Hello,
>> thank you for your help. I followed your advice and I'm now able to build
>> rpi-test-image for raspberrypi2 and raspberrypi3. When I try
>> raspberrypi3-64 instead I'm getting a few errors. I fixed one build error,
>> but then I got: https://pastebin.com/pL2mei9s. It seems that those libs
>> were not added to the sysroot for some reason. I think those come from the
>> userspace package probably. As it seems to work for the other machines I'm
>> trying to determine what difference raspberrypi3-64 is introducing but for
>> the moment I'm failing. Any idea what is causing this error? Are you able
>> to build rpi-test-image? rpi-basic-image seems to work but not
>> rpi-test-image, which includes omxplayer and other libs that I need like
>> libEGL, libGLESv2, libopenmax etc...
>>
>> These are my current conf files:
>>
>> https://pastebin.com/LJnRfDUj
>> https://pastebin.com/axt9RLQS
>>
>> Any idea why those libs cannot be found?
>> Thank you!
>> Regards.
>>
>
> I don't know if anyone here has got GUI up with rpi64 using yocto yet
> however you could try to use vc4 graphics drivers by adding "vc4graphic" to
> MACHINE_FEATURES
>
>>
>> Luca
>>
>> On Sat, Apr 29, 2017 at 9:40 AM, Andrea Galbusera <gizero at gmail.com>
>> wrote:
>>
>>> On Sat, Apr 29, 2017 at 2:39 AM, Luca Carlon <carlon.luca at gmail.com>
>>> wrote:
>>>
>>>> Hello,
>>>> thank you very much for your advice. It seems I can build both a
>>>> minimal image and rpi-basic-image. I would like to test to see if the Pi is
>>>> able to boot with these images but it seems that the images directory does
>>>> not contain any sdimg file. By reading https://github.com/agherzan/me
>>>> ta-raspberrypi and https://github.com/Nuand/blade
>>>> RF/wiki/Creating-Linux-based-Embedded-System-Images-with-Yocto it
>>>> seems I should find a sdimg file to flash to the sdcard. I suppose this
>>>> image file contains both the boot and rootfs partitions. But it seems I do
>>>> not see this image at all, this is a list of what I can see in
>>>> tmp/deploy/images/raspberrypi3-64: https://pastebin.com/8XsRHzUY. I
>>>> see the rootfs filesystem that I can extract in a partition, but not the
>>>> boot partition the Pi needs. Maybe I'm missing some line in the conf files?
>>>>
>>>
>>> If you are using the local.conf you previously posted, the line:
>>>
>>> IMAGE_FSTYPES = "tar.xz"
>>>
>>> is overriding default configuration from rpi-base.inc in
>>> meta-raspberrypi which is:
>>>
>>> IMAGE_FSTYPES ?= "tar.bz2 ext3 rpi-sdimg"
>>>
>>> You can also consider using wic image format to generate a flashable
>>> image (see Yocto documentation on how to do that).
>>>
>>
>> --
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>> yocto at yoctoproject.org
>> https://lists.yoctoproject.org/listinfo/yocto
>>
>
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