linux-kernel - [PATCH 1/3] arm64: dts: imx95-19x19-evk: fix the overshoot issue of NETC

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Message-Id: <20250528083433.3861625-2-wei.fang@nxp.com>
Date: Wed, 28 May 2025 16:34:31 +0800
From: Wei Fang <wei.fang@....com>
To: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	festevam@...il.com,
	Frank.Li@....com
Cc: devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] arm64: dts: imx95-19x19-evk: fix the overshoot issue of NETC

The overshoot of MDIO, MDC and ENET1_TDx is too high, so reduce the drive
strength these pins.

Fixes: 025cf78938c2 ("arm64: dts: imx95-19x19-evk: add ENETC 0 support")
Signed-off-by: Wei Fang <wei.fang@....com>
---
 arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
index 6886ea766655..d7d845231312 100644
--- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
@@ -566,17 +566,17 @@ &wdog3 {
 &scmi_iomuxc {
 	pinctrl_emdio: emdiogrp{
 		fsl,pins = <
-			IMX95_PAD_ENET1_MDC__NETCMIX_TOP_NETC_MDC		0x57e
-			IMX95_PAD_ENET1_MDIO__NETCMIX_TOP_NETC_MDIO		0x97e
+			IMX95_PAD_ENET1_MDC__NETCMIX_TOP_NETC_MDC		0x50e
+			IMX95_PAD_ENET1_MDIO__NETCMIX_TOP_NETC_MDIO		0x90e
 		>;
 	};
 
 	pinctrl_enetc0: enetc0grp {
 		fsl,pins = <
-			IMX95_PAD_ENET1_TD3__NETCMIX_TOP_ETH0_RGMII_TD3		0x57e
-			IMX95_PAD_ENET1_TD2__NETCMIX_TOP_ETH0_RGMII_TD2		0x57e
-			IMX95_PAD_ENET1_TD1__NETCMIX_TOP_ETH0_RGMII_TD1		0x57e
-			IMX95_PAD_ENET1_TD0__NETCMIX_TOP_ETH0_RGMII_TD0		0x57e
+			IMX95_PAD_ENET1_TD3__NETCMIX_TOP_ETH0_RGMII_TD3		0x50e
+			IMX95_PAD_ENET1_TD2__NETCMIX_TOP_ETH0_RGMII_TD2		0x50e
+			IMX95_PAD_ENET1_TD1__NETCMIX_TOP_ETH0_RGMII_TD1		0x50e
+			IMX95_PAD_ENET1_TD0__NETCMIX_TOP_ETH0_RGMII_TD0		0x50e
 			IMX95_PAD_ENET1_TX_CTL__NETCMIX_TOP_ETH0_RGMII_TX_CTL	0x57e
 			IMX95_PAD_ENET1_TXC__NETCMIX_TOP_ETH0_RGMII_TX_CLK	0x58e
 			IMX95_PAD_ENET1_RX_CTL__NETCMIX_TOP_ETH0_RGMII_RX_CTL	0x57e
-- 
2.34.1