[yocto] proper recipe for building for beagle xM? meta-ti?

[Gary Thomas]

On 2012-03-04 05:19, Robert P. J. Day wrote:
> On Sun, 4 Mar 2012, Denys Dmytriyenko wrote:
>
>> On Fri, Mar 02, 2012 at 04:18:41PM -0700, Gary Thomas wrote:
>>> On 2012-03-02 15:50, William Mills wrote:
>>>> We will update the README when it is merely in need of testing.
>>>> Today, we know there is code that does not work with GCC 4.6.
>>>> Today, we know there are features in the recipes that do not work w/o Angstrom.
>>>
>>> Can you elaborate on the above?  I have been [I think] successfully using poky+meta-ti
>>> to support internal platform based on DM8148 and DM3730 - meta-ti is the best choice
>>> for a kernel "jumping off point" for these platforms.  So far, I've only
>>> had to make a scant few tweaks to get this combo to work, in particular:
>>>
>>> * In conf/local.conf, I use this to avoid parsing problems with some meta-ti
>>>    recipes (none of which I need at the moment)
>>>      # Ignore troublesome TI recipes
>>>      BBMASK = ".*/meta-ti/recipes-misc/"
>>>
>>> * In distro.conf (I do have my own distro, but it's very close to poky), I needed
>>>      # Allow hardware overrides, e.g. armv7a
>>>      OVERRIDES .= ":${SOC_FAMILY}"
>>>
>>> With these minor additions, I've been able to use the meta-ti layer for [some]
>>> kernel work, u-boot, DSP support, etc - all the stuff one expects the layer
>>> to provide.
>>>
>>> I know my setup is a bit outside pure poky+meta-ti, but it does show that
>>> you don't actually have to have Angstrom to use meta-ti.
>>>
>>> It would be nice to understand what your concerns are, certainly the details
>>> of your two "Today,..." statements above, if they fall outside what I've outlined
>>> here.
>>
>> Gary,
>>
>> Clearly, the README is meant for the new people, who might find it
>> too complicated for the above fixes to be applied in order for them
>> to avoid using Angstrom. But you are correct, besides known isues
>> with gcc-4.6 not working for some components and hence requiring
>> meta-oe; SOC_FAMILY and systemd dependency in recipes-misc/images
>> were the only other two things requiring meta-angstrom layer.
>>
>> You can try the updated meta-ti now, as it should solve those
>> dependencies, thanks to Koen's latest patches. Please let us know
>> how it works for you. Thanks.
>
>    not sure if you're suggesting i should now be able to build for,
> say, beagleboard with the meta-ti layer, but i cloned meta-ti into my
> yocto tree, added that layer to bblayers.conf, and tried to
>
> $ bitbake core-image-minimal
>
> and got what i believe gary was referring to above:
>
> $ bitbake core-image-minimal
> Pseudo is not present but is required, building this first before the main build
> ERROR: ParseError at /home/rpjday/yocto/git/meta-ti/recipes-misc/payload/bonescript.bb:5:
> Could not inherit file classes/systemd.bbclass
> ERROR: Command execution failed: Exited with 1
>
>    or am i misreading what you wrote?

Oops, that's one more workaround I forgot to mention.  This file
is in OE-core, but not in poky.  I made a local copy in my distro
layer, but there must be a better way to handle it.

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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