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u-boot/0015-arm64-dts-meson-odroidc2-readd-PHY-.patch

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From 51704b586d230b6903a69d02ffe2dc99a251a792 Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan@agner.ch>
Date: Thu, 8 Apr 2021 10:25:28 +0200
Subject: [PATCH] arm64: dts: meson: odroidc2: readd PHY reset properties
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>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
(cherry picked from commit a246e21351778a93805b3f52302a420f4b268601)
---
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";
};