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ARM: dts: stm32: lxa-tac: reduce RGMII interface drive strength

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This results in an improvement of EMI performance by reducing the
125MHz emission and its harmonics caused by the RGMII clock line.

Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
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Leonard Göhrs 2024-01-29 12:46:49 +01:00 committed by Alexandre Torgue
parent bda732fda1
commit 7fd195f01a
1 changed files with 4 additions and 0 deletions
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arch/arm/boot/dts/st/stm32mp15xc-lxa-tac.dtsi
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@ -471,6 +471,10 @@ baseboard_eeprom: &sip_eeprom {
interrupt-parent = <&gpioa>;
interrupts = <6 IRQ_TYPE_EDGE_RISING>;
/* Reduce RGMII EMI emissions by reducing drive strength */
microchip,hi-drive-strength-microamp = <2000>;
microchip,lo-drive-strength-microamp = <8000>;
ports {
#address-cells = <1>;
#size-cells = <0>;