Add compatibility to Arm Morello System Development Platform.

Note: Morello is at the same time the name of an Architecture [1], an SoC
[2] and a Board [2].
To distinguish in between Architecture/SoC and Board we refer to the first
as arm,morello and to the second as arm,morello-sdp.

[1] https://developer.arm.com/Architectures/Morello
[2] https://www.morello-project.org/

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
---
 Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml b/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml
index 8dd6b6446394..40e7910756c8 100644
--- a/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml
@@ -118,6 +118,10 @@ properties:
         items:
           - const: arm,foundation-aarch64
           - const: arm,vexpress
+      - description: Arm Morello System Development Platform
+        items:
+          - const: arm,morello-sdp
+          - const: arm,morello
 
   arm,vexpress,position:
     description: When daughterboards are stacked on one site, their position
-- 
2.43.0

Hi Vincenzo,

thanks for your patch!

On Thu, Feb 13, 2025 at 7:03 PM Vincenzo Frascino
<vincenzo.frascino@arm.com> wrote:

> Add compatibility to Arm Morello System Development Platform.
>
> Note: Morello is at the same time the name of an Architecture [1], an SoC
> [2] and a Board [2].
> To distinguish in between Architecture/SoC and Board we refer to the first
> as arm,morello and to the second as arm,morello-sdp.
>
> [1] https://developer.arm.com/Architectures/Morello
> [2] https://www.morello-project.org/
>
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
> ---
>  Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml | 4 ++++

I was thinking, that since the .dtsi and .dts files are not reusing
any of the Juno .dtsi (correct me if I'm wrong!) this should not
be in vexpress-juno.yaml, instead perhaps you should create a new
morello.yaml file?

Yours,
Linus Walleij

On Fri, Feb 14, 2025 at 11:38:54AM +0100, Linus Walleij wrote:
> Hi Vincenzo,
>
> thanks for your patch!
>
> On Thu, Feb 13, 2025 at 7:03 PM Vincenzo Frascino
> <vincenzo.frascino@arm.com> wrote:
>
> > Add compatibility to Arm Morello System Development Platform.
> >
> > Note: Morello is at the same time the name of an Architecture [1], an SoC
> > [2] and a Board [2].
> > To distinguish in between Architecture/SoC and Board we refer to the first
> > as arm,morello and to the second as arm,morello-sdp.
> >
> > [1] https://developer.arm.com/Architectures/Morello
> > [2] https://www.morello-project.org/
> >
> > Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> > Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
> > ---
> >  Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml | 4 ++++
>
> I was thinking, that since the .dtsi and .dts files are not reusing
> any of the Juno .dtsi (correct me if I'm wrong!) this should not
> be in vexpress-juno.yaml, instead perhaps you should create a new
> morello.yaml file?
>

It is me who suggested to put it along with other vexpress stuff as I
wasn't sure how much of vexpress bindings will be reused here when
Vincenzo started this. I agree it can be a separate binding on its own
as I don't see much commonality now with the vexpress bindings.

Just a note, though the file is named arm,vexpress-juno.yaml, it also
carries bindings for all Vexpress based Arm Ltd boards(both 32-bit and
64-bit ones), but they all use common vexpress bindings in general.

I just thought of highlighting that so that the expectation to reuse
this file is not to check commonality in juno dtsi files but to check
the vexpress binding reuse. Hope we are aligned with that.

--
Regards,
Sudeep