SolidRun CN9130 SoM actually uses CP_MPP[0:1] for mdio. CP_MPP[40]
provides reference clock for dsa switch and ethernet phy on Clearfog
Pro, wheras MPP[41] controls efuse programming voltage "VHV".

Update the cp0 mdio pinctrl node to specify mpp0, mpp1.

Fixes: 1c510c7d82e5 ("arm64: dts: add description for solidrun cn9130 som and clearfog boards")
Cc: stable@vger.kernel.org # 6.11.x
Signed-off-by: Josua Mayer <josua@solid-run.com>
---
Changes in v2:
- corrected Cc: stable list address
- removed duplicate "mdio" from commit message
- added Fixes: tag
- Link to v1: https://lore.kernel.org/r/20241002-cn9130-som-mdio-v1-1-0942be4dc550@solid-run.com
---
 arch/arm64/boot/dts/marvell/cn9130-sr-som.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/marvell/cn9130-sr-som.dtsi b/arch/arm64/boot/dts/marvell/cn9130-sr-som.dtsi
index 4676e3488f54d53041696d877b510b8d51dcd984..cb8d54895a77753c760b58b8b5103149e21e2094 100644
--- a/arch/arm64/boot/dts/marvell/cn9130-sr-som.dtsi
+++ b/arch/arm64/boot/dts/marvell/cn9130-sr-som.dtsi
@@ -136,7 +136,7 @@ cp0_i2c0_pins: cp0-i2c0-pins {
 		};
 
 		cp0_mdio_pins: cp0-mdio-pins {
-			marvell,pins = "mpp40", "mpp41";
+			marvell,pins = "mpp0", "mpp1";
 			marvell,function = "ge";
 		};
 

---
base-commit: 9852d85ec9d492ebef56dc5f229416c925758edc
change-id: 20241002-cn9130-som-mdio-4a519e6dc7df

Best regards,
-- 
Josua Mayer <josua@solid-run.com>

Hi Josua and Arnd,

> SolidRun CN9130 SoM actually uses CP_MPP[0:1] for mdio. CP_MPP[40]
> provides reference clock for dsa switch and ethernet phy on Clearfog
> Pro, wheras MPP[41] controls efuse programming voltage "VHV".
>
> Update the cp0 mdio pinctrl node to specify mpp0, mpp1.


Applied on mvebu/fixes

Thanks,

Arnd,

I've applied it on an mvebu branch and I'll create a PR for it this
week. However, since we don't have many fixes, you might prefer to apply
this patch directly to your trees?

Gregory

>
> Fixes: 1c510c7d82e5 ("arm64: dts: add description for solidrun cn9130 som and clearfog boards")
> Cc: stable@vger.kernel.org # 6.11.x
> Signed-off-by: Josua Mayer <josua@solid-run.com>
> ---
> Changes in v2:
> - corrected Cc: stable list address
> - removed duplicate "mdio" from commit message
> - added Fixes: tag
> - Link to v1: https://lore.kernel.org/r/20241002-cn9130-som-mdio-v1-1-0942be4dc550@solid-run.com
> ---
>  arch/arm64/boot/dts/marvell/cn9130-sr-som.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/marvell/cn9130-sr-som.dtsi b/arch/arm64/boot/dts/marvell/cn9130-sr-som.dtsi
> index 4676e3488f54d53041696d877b510b8d51dcd984..cb8d54895a77753c760b58b8b5103149e21e2094 100644
> --- a/arch/arm64/boot/dts/marvell/cn9130-sr-som.dtsi
> +++ b/arch/arm64/boot/dts/marvell/cn9130-sr-som.dtsi
> @@ -136,7 +136,7 @@ cp0_i2c0_pins: cp0-i2c0-pins {
>  		};
>  
>  		cp0_mdio_pins: cp0-mdio-pins {
> -			marvell,pins = "mpp40", "mpp41";
> +			marvell,pins = "mpp0", "mpp1";
>  			marvell,function = "ge";
>  		};
>  
>
> ---
> base-commit: 9852d85ec9d492ebef56dc5f229416c925758edc
> change-id: 20241002-cn9130-som-mdio-4a519e6dc7df
>
> Best regards,
> -- 
> Josua Mayer <josua@solid-run.com>

On Wed, Oct 02, 2024 at 03:07:16PM +0200, Josua Mayer wrote:
> SolidRun CN9130 SoM actually uses CP_MPP[0:1] for mdio. CP_MPP[40]
> provides reference clock for dsa switch and ethernet phy on Clearfog
> Pro, wheras MPP[41] controls efuse programming voltage "VHV".
> 
> Update the cp0 mdio pinctrl node to specify mpp0, mpp1.
> 
> Fixes: 1c510c7d82e5 ("arm64: dts: add description for solidrun cn9130 som and clearfog boards")
> Cc: stable@vger.kernel.org # 6.11.x
> Signed-off-by: Josua Mayer <josua@solid-run.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew