The sync of the device tree and dt-bindings from Linux v5.6-rc2 11a48a5a18c6 ("Linux 5.6-rc2") causes Ethernet to break on some ODROID-C2. The PHY seems to need proper reset timing to be functional in U-Boot and Linux afterwards. Readd the old PHY reset bindings for dwmac until we support the new bindings in the PHY node.
Fixes: dd5f2351e99a ("arm64: dts: meson: sync dt and bindings from v5.6-rc2") Signed-off-by: Stefan Agner <ste...@agner.ch> --- arch/arm/dts/meson-gxbb-odroidc2.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/dts/meson-gxbb-odroidc2.dts b/arch/arm/dts/meson-gxbb-odroidc2.dts index 70fcfb7b06..8b80bbc90b 100644 --- a/arch/arm/dts/meson-gxbb-odroidc2.dts +++ b/arch/arm/dts/meson-gxbb-odroidc2.dts @@ -188,6 +188,10 @@ phy-handle = <ð_phy0>; phy-mode = "rgmii"; + snps,reset-gpio = <&gpio GPIOZ_14 0>; + snps,reset-delays-us = <0 10000 1000000>; + snps,reset-active-low; + amlogic,tx-delay-ns = <2>; mdio { -- 2.31.1