[PATCH 4.19 08/38] arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode

[Greg Kroah-Hartman]

From: Robert Marko <robert.marko@xxxxxxxxxx>

[ Upstream commit 08d2061ff9c5319a07bf9ca6bbf11fdec68f704a ]

Orange Pi Zero Plus uses a Realtek RTL8211E RGMII Gigabit PHY, but its
currently set to plain RGMII mode meaning that it doesn't introduce
delays.

With this setup, TX packets are completely lost and changing the mode to
RGMII-ID so the PHY will add delays internally fixes the issue.

Fixes: a7affb13b271 ("arm64: allwinner: H5: Add Xunlong Orange Pi Zero Plus")
Acked-by: Chen-Yu Tsai <wens@xxxxxxxx>
Tested-by: Ron Goossens <rgoossens@xxxxxxxxx>
Tested-by: Samuel Holland <samuel@xxxxxxxxxxxx>
Signed-off-by: Robert Marko <robert.marko@xxxxxxxxxx>
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211117140222.43692-1-robert.marko@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
index 1238de25a9691..9b1789504f7a0 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
@@ -72,7 +72,7 @@
 	pinctrl-0 = <&emac_rgmii_pins>;
 	phy-supply = <&reg_gmac_3v3>;
 	phy-handle = <&ext_rgmii_phy>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	status = "okay";
 };
 
-- 
2.34.1