commit cb9e2846de37bcc81318a937a6b1159909ef4b06
author Marcel Ziswiler <marcel.ziswiler@toradex.com> Thu Mar 28 23:24:50 2019 +0100
committer Stefano Babic <sbabic@denx.de> Thu Apr 25 17:03:25 2019 +0200
tree 69b25c03515ab111bba8002701af96242398985a
parent 203a227e0dc0364738a24c77fbafbe2ffe1c100b

colibri_vf: fix ethernet by adding explicit phy node

The implicit fallback mechanism for searching the whole MDIO bus for at
least one PHY has been gone with the following commit b882005a18de
("drivers/net/fec: phy_init: remove redundant logic"). This lead to the
Ethernet driver erroring out as follows:

Net:   Could not get PHY for FEC0: addr -19
eth-1: fec@400d1000
Colibri VFxx # dhcp
Could not get PHY for FEC0: addr -19
Could not get PHY for FEC0: addr -19
Could not get PHY for FEC0: addr -19
Could not get PHY for FEC0: addr -19
No ethernet found.
Could not get PHY for FEC0: addr -19
Colibri VFxx #

This commit adds an explicit PHY node which makes it work again.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Reviewed-by: Igor Opaniuk <igor.opaniuk@toradex.com>

arch/arm/dts/vf-colibri.dtsi

diff --git a/arch/arm/dts/vf-colibri.dtsi b/arch/arm/dts/vf-colibri.dtsi
index 5ce1707..91ca4e4 100644
--- a/arch/arm/dts/vf-colibri.dtsi
+++ b/arch/arm/dts/vf-colibri.dtsi
@@ -60,11 +60,24 @@
 	status = "okay";
 };
 
+/* Ethernet */
 &fec1 {
 	phy-mode = "rmii";
+	phy-handle = <&ethphy1>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_fec1>;
 	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy1: ethernet-phy@1 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			max-speed = <100>;
+			reg = <1>;
+		};
+	};
 };
 
 &i2c0 {