The i.MX8M Plus EQOS RGMII tracelength is less than 1in and does not
require a x6 drive strength. Reduce the CLK drive strength to x1 for
lower emissions. Additionally since TXC is not a high frequency clock,
use slow slew rate (FSEL=0) for lower emmissions and improved signal
quality.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
v2: add FSEL detail to log (Peng)
---
 arch/arm64/boot/dts/freescale/imx8mp-venice-gw702x.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw702x.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw702x.dtsi
index a1232a4f8485..dd9eeb3479fd 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw702x.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw702x.dtsi
@@ -462,7 +462,7 @@ MX8MP_IOMUXC_ENET_TD1__ENET_QOS_RGMII_TD1		0x16
 			MX8MP_IOMUXC_ENET_TD2__ENET_QOS_RGMII_TD2		0x16
 			MX8MP_IOMUXC_ENET_TD3__ENET_QOS_RGMII_TD3		0x16
 			MX8MP_IOMUXC_ENET_TX_CTL__ENET_QOS_RGMII_TX_CTL		0x16
-			MX8MP_IOMUXC_ENET_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK	0x16
+			MX8MP_IOMUXC_ENET_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK	0x0
 		>;
 	};
 
-- 
2.25.1

On Thu, Sep 18, 2025 at 08:44:47AM -0700, Tim Harvey wrote:
>The i.MX8M Plus EQOS RGMII tracelength is less than 1in and does not
>require a x6 drive strength. Reduce the CLK drive strength to x1 for
>lower emissions. Additionally since TXC is not a high frequency clock,
>use slow slew rate (FSEL=0) for lower emmissions and improved signal
>quality.
>
>Signed-off-by: Tim Harvey <tharvey@gateworks.com>

Reviewed-by: Peng Fan <peng.fan@nxp.com>