ARM64: dts: meson-gxbb-odroidc2: fix GbE tx link breakage
authorJerome Brunet <jbrunet@baylibre.com>
Fri, 20 Jan 2017 16:20:24 +0000 (08:20 -0800)
committerArnd Bergmann <arnd@arndb.de>
Fri, 27 Jan 2017 15:46:42 +0000 (16:46 +0100)
OdroidC2 GbE link breaks under heavy tx transfer. This happens even if the
MAC does not enable Energy Efficient Ethernet (No Low Power state Idle on
the Tx path). The problem seems to come from the phy Rx path, entering the
LPI state.

Disabling EEE advertisement on the phy prevent this feature to be
negociated with the link partner and solve the issue.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts

index 5d28e1cdc9986a18de73efc9c3a988c4556f1d88..c59403adb387dbcd33d375561ee3eaa07ebdfa3f 100644 (file)
        status = "okay";
        pinctrl-0 = <&eth_rgmii_pins>;
        pinctrl-names = "default";
+       phy-handle = <&eth_phy0>;
+
+       mdio {
+               compatible = "snps,dwmac-mdio";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               eth_phy0: ethernet-phy@0 {
+                       reg = <0>;
+                       eee-broken-1000t;
+               };
+       };
 };
 
 &ir {