[PATCH] ARM: dts: stm32: Enable PHY SSC on DH STM32MP13xx DHCOR DHSBC board
Marek Vasut
marex at nabladev.com
Sat Apr 11 06:03:24 PDT 2026
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 at nabladev.com>
---
Cc: Alexandre Torgue <alexandre.torgue at foss.st.com>
Cc: Christoph Niedermaier <cniedermaier at dh-electronics.com>
Cc: Conor Dooley <conor+dt at kernel.org>
Cc: Krzysztof Kozlowski <krzk+dt at kernel.org>
Cc: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
Cc: Rob Herring <robh at kernel.org>
Cc: devicetree at vger.kernel.org
Cc: kernel at dh-electronics.com
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
Cc: linux-stm32 at 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 at 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 at 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
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