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arm64: dts: meson: nanopi-k2: readd PHY reset properties

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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: dd5f2351e9 ("arm64: dts: meson: sync dt and bindings from v5.6-rc2")
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Link: https://lore.kernel.org/r/20221025143205.14470-1-christianshewitt@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
This commit is contained in:
Christian Hewitt 2022-10-25 14:32:05 +00:00 committed by Neil Armstrong
parent 66006f86e8
commit e0638f1d09
1 changed files with 7 additions and 0 deletions
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7
arch/arm/dts/meson-gxbb-nanopi-k2-u-boot.dtsi
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@ -5,3 +5,10 @@
*/
#include "meson-gx-u-boot.dtsi"
&ethmac {
snps,reset-gpio = <&gpio GPIOZ_14 0>;
snps,reset-delays-us = <0 10000 1000000>;
snps,reset-active-low;
};