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arm64: dts: imx8mp-venice-gw702x: reduce RGMII CLK drive strength

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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>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Tim Harvey
2025-09-18 08:44:47 -07:00
committed by Shawn Guo
parent 69bb376d5e
commit 0a138a2cfd
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/boot/dts/freescale/imx8mp-venice-gw702x.dtsi
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@@ -462,7 +462,7 @@
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
>;
};