On 08/04/2021 10:25, Stefan Agner wrote:

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 stefan@agner.ch

---

arch/arm/dts/meson-gxbb-odroidc2-u-boot.dtsi | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/arch/arm/dts/meson-gxbb-odroidc2-u-boot.dtsi b/arch/arm/dts/meson-gxbb-odroidc2-u-boot.dtsi index 90087b00db..5a2be8171e 100644 --- a/arch/arm/dts/meson-gxbb-odroidc2-u-boot.dtsi +++ b/arch/arm/dts/meson-gxbb-odroidc2-u-boot.dtsi @@ -29,6 +29,12 @@ }; };

+&ethmac {

• snps,reset-gpio = <&gpio GPIOZ_14 0>;
• snps,reset-delays-us = <0 10000 1000000>;
• snps,reset-active-low;

+};

&usb0 { status = "disabled"; };

Thanks,

Applied to u-boot-amlogic