arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode

[ 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@csie.org>
Tested-by: Ron Goossens <rgoossens@gmail.com>
Tested-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20211117140222.43692-1-robert.marko@sartura.hr
Signed-off-by: Sasha Levin <sashal@kernel.org>

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 ef5ca6444220336398588735482ca1b2360fadc6..de448ca51e216c3aa37900094626d62b20fd8cce 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
@@ -69,7 +69,7 @@
        pinctrl-0 = <&emac_rgmii_pins>;
        phy-supply = <&reg_gmac_3v3>;
        phy-handle = <&ext_rgmii_phy>;
-       phy-mode = "rgmii";
+       phy-mode = "rgmii-id";
        status = "okay";
 };