ARM: dts: imx6qdl-sabresd: Fix AR8031 phy-mode

As per kernel commit 0672d22a1924 ("ARM: dts: imx: Fix the AR803X phy-mode)
the correct phy-mode should be "rgmii-id", so fix it accordingly
to fix the Ethernet regression.

This problem has been exposed by commit:

commit 13114f38e2ccea9386726d8b9831dfc310589548
Author: Vladimir Oltean <vladimir.oltean@nxp.com>
Date:   Thu May 7 00:11:51 2020 +0200

    phy: atheros: Explicitly disable RGMII delays

    To eliminate any doubts about the out-of-reset value of the PHY, that
    the driver previously relied on.

    If bisecting shows that this commit breaks your board you probably have
    a wrong PHY interface mode. You probably want the
    PHY_INTERFACE_MODE_RGMII_RXID or PHY_INTERFACE_MODE_RGMII_ID mode.

    Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
    Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>

diff --git a/arch/arm/dts/imx6qdl-sabresd.dtsi b/arch/arm/dts/imx6qdl-sabresd.dtsi
index 2cd5a9f..eddb390 100644 (file)
--- a/arch/arm/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/dts/imx6qdl-sabresd.dtsi
@@ -204,7 +204,7 @@
 &fec {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_enet>;
-       phy-mode = "rgmii";
+       phy-mode = "rgmii-id";
        phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
        status = "okay";
 };