[PATCH] ARM: dts: stm32: Enable PHY SSC on DH STM32MP13xx DHCOR DHSBC board
From: Marek Vasut
Date: Sat Apr 11 2026 - 09:10:15 EST
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@xxxxxxxxxxxx>
---
Cc: Alexandre Torgue <alexandre.torgue@xxxxxxxxxxx>
Cc: Christoph Niedermaier <cniedermaier@xxxxxxxxxxxxxxxxxx>
Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
Cc: Maxime Coquelin <mcoquelin.stm32@xxxxxxxxx>
Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: kernel@xxxxxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-stm32@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
---
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