The FEC does not have a PHY so it should not have a phy-handle. It is
connected to the switch at RGMII level so we need a fixed-link sub-node
on both ends.
This was not a problem until the qca8k.c driver was converted to PHYLINK
by commit 
b3591c2a3661 ("net: dsa: qca8k: Switch to PHYLINK instead of
PHYLIB"). That commit revealed the FEC configuration was not correct.
Fixes: 87489ec3a77f ("ARM: dts: imx: Add Y Soft IOTA Draco, Hydra and Ursa boards")
Cc: stable@vger.kernel.org
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
 
        phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
        phy-reset-duration = <20>;
        phy-supply = <&sw2_reg>;
-       phy-handle = <ðphy0>;
        status = "okay";
 
+       fixed-link {
+               speed = <1000>;
+               full-duplex;
+       };
+
        mdio {
                #address-cells = <1>;
                #size-cells = <0>;