[poky] Building custom Linux kernel with own layer

[Bruce Ashfield]

On Wed, Mar 20, 2013 at 11:59 AM, Bryan Evenson <bevenson at melinkcorp.com> wrote:
> I have an Atmel AT91SAM9G25 based board and have been using the Classic OpenEmbedded development tree for my device.  I am working on switching to using the Poky distribution.  I found a Yocto layer that someone else had started here: https://github.com/baseapp/meta-atmel/tree/yocto.  I would like to use this layer as a starting point and go from there.  The layer looks to be setup to build kernel 2.6.39 (as that is the kernel I am currently using), but that's not what's happening on my system.  I would like some help in figuring out what needs to change with the layer or my setup to build the 2.6.39 kernel.
>
> I am using the stable poky-danny-8.0 release (downloaded tarball).  Under the poky-danny-8.0 folder, I cloned the meta-atmel layer that I referred to above.  I changed my bblayers.conf to include the meta-atmel layer.  When I bitbake linux-yocto, here's what I see for my build configuration:
>
> Build Configuration:
> BB_VERSION        = "1.16.0"
> TARGET_ARCH       = "arm"
> TARGET_OS         = "linux-gnueabi"
> MACHINE           = "qemuarm"
> DISTRO            = "poky"
> DISTRO_VERSION    = "1.3"
> TUNE_FEATURES     = "armv5 dsp thumb arm926ejs"
> TARGET_FPU        = "soft"
> meta
> meta-yocto
> meta-yocto-bsp    = "<unknown>:<unknown>"
> meta-atmel        = "yocto:80336b72180283bfd5cf5f674e8c1081deede72a"
>
> and it builds 3.4.11+git1+a201268353c030d9fafe00f2041976f7437d9386_1+8ee53c3b82ada3cdfd7d25f07d3975834ac9a9b2-r4.3.  From looking at the meta-atmel layer, I think it should be overriding the linux-yocto settings from the other layers.   What am I missing?

You need to set the preferred provider for your BSP to be your linux-custom
recipe (or whatever you call it, you don't need to leave it called
'linux-yocto-custom').
If you've done that, and are still seeing 3.4.x in the version number,
chances are
the recipe simply isn't overriding the right variables .. and a peek
at the recipe would
figure that out quickly.

Bruce

>
> Thanks,
> Bryan
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