Re: [PATCH 1/2] conf: machine: add BeagleBone Green Eco to KERNEL_DEVICETREE

[Ryan Eatmon <reatmon@ti.com>]

On 7/15/2025 6:34 AM, Miguel Gazquez wrote:
> Add am335x-bonegreen-eco devicetree to KERNEL_DEVICETREE in ti33x.inc
> 
> Signed-off-by: Miguel Gazquez <miguel.gazquez@bootlin.com>
> ---
>   meta-ti-bsp/conf/machine/include/ti33x.inc | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/meta-ti-bsp/conf/machine/include/ti33x.inc b/meta-ti-bsp/conf/machine/include/ti33x.inc
> index 7e9eb48c52737e74750565e639956334162432e2..0a0730eae104371d65548588b3333839857a3a50 100644
> --- a/meta-ti-bsp/conf/machine/include/ti33x.inc
> +++ b/meta-ti-bsp/conf/machine/include/ti33x.inc
> @@ -28,6 +28,7 @@ KERNEL_DEVICETREE = " \
>       ti/omap/am335x-boneblack.dtb \
>       ti/omap/am335x-boneblue.dtb \
>       ti/omap/am335x-bonegreen-wireless.dtb \
> +    ti/omap/am335x-bonegreen-eco.dtb \
>       ti/omap/am335x-bonegreen.dtb \
>       ti/omap/am335x-chiliboard.dtb \
>       ti/omap/am335x-cm-t335.dtb \

NAK.  As has been mentioned several times on this list, we do not update 
KERNEL_DEVICETREE directly.  As we support multiple kernel versions with 
each branch, we cannot have a single KERNEL_DEVICETREE that works for 
all kernel versions.

To that end we setup the KERNEL_DEVICETREE_PREFIX variable that will 
pattern match and change the value for KERNEL_DEVICETREE based on the 
available matching DTBs in the given kernel.  The only kernel version 
that uses KERNEL_DEVICETREE is the mainline (aka latest stable) kernel. 
And the value for this variable is automatically updated to include all 
of the available DTBs in the mainline kernel at the time we update the 
recipe to that version.

As the KERNEL_DEVICETREE_PREFIX already has an entry that will pick up 
this new DTB when it is available, this change is not needed.

Right now this new DTB is only available on linux-next and has not made 
it into any released kernels.


-- 
Ryan Eatmon                reatmon@ti.com
-----------------------------------------
Texas Instruments, Inc.  -  LCPD  -  MGTS