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 3d66c6701342ae20839254674261c8264beccde5..b764f77348689be4b31495926dc77d177459ec55 100644 (file)
--- 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>;