[meta-xilinx] Devicetree file for kernel based on the 3.10 recipe

[Sipke Vriend]

Hi Philip,

>-----Original Message-----
>From: meta-xilinx-bounces at yoctoproject.org [mailto:meta-xilinx-bounces at yoctoproject.org] On Behalf Of Philip Balister
>Sent: Saturday, 7 September 2013 3:25 AM
>To: meta-xilinx at yoctoproject.org
>Subject: [meta-xilinx] Devicetree file for kernel based on the 3.10 recipe
>
>Do I have any expectation of building something that boots with the 3.10
>kernel in meta-xilinx using the devicetree bits in meta-xilinx?
>

We recommend using the preferred kernel 3.8, as selected by the machine 
files.

>If not, how can we deal with needing new devices tress for some kernel
>versions?
>

Meta-xilinx allows for the building of both in kernel tree dts and
recipe space dts.
Refer commit:
http://git.yoctoproject.org/cgit/cgit.cgi/meta-xilinx/commit/?id=ad5139ef91c7a1f4a32261238426f8661eb57871

Each architecture in kernel provides an example dts, so you  
you can set KERNEL_DEVICETREE within local.conf to the 
in-kernel-tree version and use that generated dtb.
e.g. 
KERNEL_DEVICETREE = "zynq-zed.dtb"

For linux-xlnx-dev (currently master-next 3.10) we recommend using 
the in kernel tree one to stay in touch with latest dts developments.

For the linux-xlnx 3.10 recipe (and in future any new kernel recipes 
within meta-xilinx master branch) we advise waiting till 
linux-xlnx.git master-next is moved to master and tagged, at which
point we will review dts files in meta-xilinx and update accordingly.

In summary, unless you are actively developing around a given kernel, 
and have a good knowledge of kernel and bitbake recipes, use the 
kernel version selected by the meta-xilinx machine files.

Regards
Sipke

>Philip
>
>PS: Can you comment on this stuff I sent yesterday. I do not want it to
>bitrot.

Replied.

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