From bd24b82e1f98994519b48b2f491334a764710caf Mon Sep 17 00:00:00 2001 From: Siddharth Vadapalli Date: Mon, 23 Feb 2026 16:24:14 +0530 Subject: [PATCH] arm64: dts: ti: k3-j7200-common-proc-board: add ti,min-output-impedance The default impedance for the MAC I/O lines from the DP83867 Ethernet PHY is 50 Ohm. Based on the board PCB traces, this impedance is relatively higher than expected, resulting in CRC errors for packets being transmitted and received. Hence, add the "ti,min-output-impedance" device-tree property to set the impedance to its lowest possible value of 35 Ohm as described in the DP83867 Datasheet [0]. [0]: https://www.ti.com/lit/ds/symlink/dp83867e.pdf Signed-off-by: Siddharth Vadapalli Link: https://patch.msgid.link/20260223105448.1110428-4-s-vadapalli@ti.com Signed-off-by: Vignesh Raghavendra --- arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts index 3e5efdfe87f1..54dea36b153b 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts @@ -331,6 +331,7 @@ phy0: ethernet-phy@0 { reg = <0>; ti,rx-internal-delay = ; ti,fifo-depth = ; + ti,min-output-impedance; }; };