From e0638f1d09b9e9caead4e3909e7dc8aaa41febe1 Mon Sep 17 00:00:00 2001 From: Christian Hewitt Date: Tue, 25 Oct 2022 14:32:05 +0000 Subject: [PATCH] arm64: dts: meson: nanopi-k2: readd PHY reset properties The sync of device-tree/bindings in 11a48a5a18c6 ("Linux 5.6-rc2") causes Ethernet to break on some GXBB boards; the PHY seems to need proper reset timing to function in u-boot and Linux. Re-add the old PHY reset binding for dwmac until we support new bindings in the PHY node. This borrows the same fix applied to the Odroid C2 board [0]. [0] https://lists.denx.de/pipermail/u-boot/2021-April/446658.html Fixes: dd5f2351e99a ("arm64: dts: meson: sync dt and bindings from v5.6-rc2") Signed-off-by: Christian Hewitt Link: https://lore.kernel.org/r/20221025143205.14470-1-christianshewitt@gmail.com Signed-off-by: Neil Armstrong --- arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi b/arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi index c35158d7e9..2a245bbe7f 100644 --- a/arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi +++ b/arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi @@ -5,3 +5,10 @@ */ #include "meson-gx-u-boot.dtsi" + +ðmac { + snps,reset-gpio = <&gpio GPIOZ_14 0>; + snps,reset-delays-us = <0 10000 1000000>; + snps,reset-active-low; +}; + -- 2.39.5