[PATCH] arm64: dts: imx8mm-phycore-som: optimize drive strengh

Jan Remmet j.remmet at phytec.de
Tue Sep 9 23:17:39 PDT 2025


Reduce ENET pin drive strength from X6 to X4 to optimize signal
quality and reduce potential signal integrity issues.

Signed-off-by: Jan Remmet <j.remmet at phytec.de>
---
 arch/arm64/boot/dts/freescale/imx8mm-phycore-som.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-phycore-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-phycore-som.dtsi
index 672baba4c8d0..921a7f58fd41 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-phycore-som.dtsi
@@ -340,10 +340,10 @@ MX8MM_IOMUXC_ENET_RXC_ENET1_RGMII_RXC		0x90
 			MX8MM_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL	0x90
 			MX8MM_IOMUXC_ENET_TD0_ENET1_RGMII_TD0		0x16
 			MX8MM_IOMUXC_ENET_TD1_ENET1_RGMII_TD1		0x16
-			MX8MM_IOMUXC_ENET_TD2_ENET1_RGMII_TD2		0x16
-			MX8MM_IOMUXC_ENET_TD3_ENET1_RGMII_TD3		0x16
-			MX8MM_IOMUXC_ENET_TXC_ENET1_RGMII_TXC		0x16
-			MX8MM_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL	0x16
+			MX8MM_IOMUXC_ENET_TD2_ENET1_RGMII_TD2		0x12
+			MX8MM_IOMUXC_ENET_TD3_ENET1_RGMII_TD3		0x12
+			MX8MM_IOMUXC_ENET_TXC_ENET1_RGMII_TXC		0x12
+			MX8MM_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL	0x12
 			MX8MM_IOMUXC_GPIO1_IO07_GPIO1_IO7		0x10
 		>;
 	};
-- 
2.43.0




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