[OE-core] [PATCH v2] linux-dtb: Use kernel build system to generate the dtb files

[Mike Looijmans]


On 08/13/2013 03:52 PM, Otavio Salvador wrote:
> As the Linux kernel, unconditionally, builds the dtc application and
> it is the compatible version with the DeviceTree files shipped within
> the kernel it is better to use it and the kernel build system to
> generate the dtb files.
>
> Some DeviceTree files rely on CPP and kernel headers to be able to
> generate the dtb binary contents and it is harder to replicate it
> outside of Linux kernel build system so we /use/ it.
>
> To comply with these assumptions we need to use the dtb file when
> calling 'make' instead of pointing to the DeviceTree source file; the
> code has been made backward compatible but it is advised to move to
> the new definition to avoid warnings as:
>
> ,----[ Original definition ]
> | KERNEL_DEVICETREE = "${S}/arch/arm/boot/dts/imx6q-sabresd.dts"
> `----
>
> Becomes:
>
> ,----[ New definition ]
> | KERNEL_DEVICETREE = "imx6q-sabresd.dtb"
> `----

I currently have a "bbappend" that adds a DTB file from outside the 
kernel (listing driver configuration that is implemented in the FPGA 
part of the SOC). The DTB file /include/s files from the kernel (that 
is, it gets everything from the standard files and adds a single device).

How would I go about adding this after this change?

(as for the change itself, I'm all in favor)

Mike.


Met vriendelijke groet / kind regards,

Mike Looijmans

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