From: Teresa Remmet <t.remmet@phytec.de>
Date: Thu, 18 Dec 2025 12:00:06 +0000 (+0100)
Subject: arm64: dts: imx8mm-phycore-som: Update eth phy impedance
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be1e3ea0cf76f2fa613220253a630308d19ae5d0;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: imx8mm-phycore-som: Update eth phy impedance

Update the DP83867 ethernet phy impedance settings to
to optimize signal quality and reduce potential signal integrity issues.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-phycore-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-phycore-som.dtsi
index 3d66c6701342a..b764f77348689 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-phycore-som.dtsi
@@ -83,6 +83,7 @@
 			enet-phy-lane-no-swap;
 			ti,clk-output-sel = <DP83867_CLK_O_SEL_OFF>;
 			ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+			ti,min-output-impedance;
 			ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
 			ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
 			reg = <0>;