[PATCH] ARM: dts: stm32: Enable PHY SSC on DH STM32MP13xx DHCOR DHSBC board

[PATCH] ARM: dts: stm32: Enable PHY SSC on DH STM32MP13xx DHCOR DHSBC board

[Marek Vasut]

Add realtek,rxc-ssc-enable and realtek,sysclk-ssc-enable to both PHY
DT nodes to enable PHY Spread Spectrum on RXC and SYSCLK, CLKOUT is
disabled and therefore does not need SSC enabled.

Signed-off-by: Marek Vasut <marex@nabladev.com>
---
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: kernel@dh-electronics.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
---
 arch/arm/boot/dts/st/stm32mp135f-dhcor-dhsbc.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/st/stm32mp135f-dhcor-dhsbc.dts b/arch/arm/boot/dts/st/stm32mp135f-dhcor-dhsbc.dts
index 9902849ed0406..70d85af467353 100644
--- a/arch/arm/boot/dts/st/stm32mp135f-dhcor-dhsbc.dts
+++ b/arch/arm/boot/dts/st/stm32mp135f-dhcor-dhsbc.dts
@@ -97,6 +97,8 @@ ethphy1: ethernet-phy@1 {
 			interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
 			reg = <1>;
 			realtek,clkout-disable;
+			realtek,rxc-ssc-enable;
+			realtek,sysclk-ssc-enable;
 			reset-assert-us = <15000>;
 			reset-deassert-us = <55000>;
 			reset-gpios = <&gpioa 11 GPIO_ACTIVE_LOW>;
@@ -146,6 +148,8 @@ ethphy2: ethernet-phy@1 {
 			interrupts = <15 IRQ_TYPE_LEVEL_LOW>;
 			reg = <1>;
 			realtek,clkout-disable;
+			realtek,rxc-ssc-enable;
+			realtek,sysclk-ssc-enable;
 			reset-assert-us = <15000>;
 			reset-deassert-us = <55000>;
 			reset-gpios = <&gpiog 8 GPIO_ACTIVE_LOW>;
-- 
2.53.0

Re: [PATCH] ARM: dts: stm32: Enable PHY SSC on DH STM32MP13xx DHCOR DHSBC board

[Alexandre TORGUE]

Hi Marek

On 4/11/26 15:03, Marek Vasut wrote:
> Add realtek,rxc-ssc-enable and realtek,sysclk-ssc-enable to both PHY
> DT nodes to enable PHY Spread Spectrum on RXC and SYSCLK, CLKOUT is
> disabled and therefore does not need SSC enabled.
> 
> Signed-off-by: Marek Vasut <marex@nabladev.com>
> ---
> Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
> Cc: Christoph Niedermaier <cniedermaier@dh-electronics.com>
> Cc: Conor Dooley <conor+dt@kernel.org>
> Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
> Cc: Rob Herring <robh@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: kernel@dh-electronics.com
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-stm32@st-md-mailman.stormreply.com
> ---
>   arch/arm/boot/dts/st/stm32mp135f-dhcor-dhsbc.dts | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/st/stm32mp135f-dhcor-dhsbc.dts b/arch/arm/boot/dts/st/stm32mp135f-dhcor-dhsbc.dts
> index 9902849ed0406..70d85af467353 100644
> --- a/arch/arm/boot/dts/st/stm32mp135f-dhcor-dhsbc.dts
> +++ b/arch/arm/boot/dts/st/stm32mp135f-dhcor-dhsbc.dts
> @@ -97,6 +97,8 @@ ethphy1: ethernet-phy@1 {
>   			interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
>   			reg = <1>;
>   			realtek,clkout-disable;
> +			realtek,rxc-ssc-enable;
> +			realtek,sysclk-ssc-enable;
>   			reset-assert-us = <15000>;
>   			reset-deassert-us = <55000>;
>   			reset-gpios = <&gpioa 11 GPIO_ACTIVE_LOW>;
> @@ -146,6 +148,8 @@ ethphy2: ethernet-phy@1 {
>   			interrupts = <15 IRQ_TYPE_LEVEL_LOW>;
>   			reg = <1>;
>   			realtek,clkout-disable;
> +			realtek,rxc-ssc-enable;
> +			realtek,sysclk-ssc-enable;
>   			reset-assert-us = <15000>;
>   			reset-deassert-us = <55000>;
>   			reset-gpios = <&gpiog 8 GPIO_ACTIVE_LOW>;

Applied on stm32-next.

Thanks
Alex