linux-kernel - [PATCH] ARM: dts: sun8i: h3: orangepi-plus: Fix Ethernet PHY mode

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Date:   Mon, 8 Feb 2021 12:24:57 +0100 (CET)
From:   "B.R. Oake" <broake@...lfence.com>
To:     Jernej Skrabec <jernej.skrabec@...l.net>,
        Chen-Yu Tsai <wens@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...glegroups.com, devicetree@...r.kernel.org
Subject: [PATCH] ARM: dts: sun8i: h3: orangepi-plus: Fix Ethernet PHY mode

Since commit bbc4d71d6354 ("net: phy: realtek: fix rtl8211e rx/tx
delay config"), Ethernet no longer works on the Orange Pi Plus,
because that commit sets the RX/TX delay according to the phy-mode
property in the device tree, which is "rgmii", the wrong setting
for this board.

Following the example of others who fixed the same problem for
many other boards, this patch changes the phy-mode to "rgmii-id"
which gets Ethernet working again on this board.

Fixes: 4904337fe34f ("ARM: dts: sunxi: Restore EMAC changes (boards)")
Fixes: 1dcd0095019a ("ARM: sun8i: orangepi-plus: Enable dwmac-sun8i")
Signed-off-by: B.R. Oake <broake@...lfence.com>
---
 arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
index 97f497854e..d05fa679dc 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
@@ -85,7 +85,7 @@
 	pinctrl-0 = <&emac_rgmii_pins>;
 	phy-supply = <&reg_gmac_3v3>;
 	phy-handle = <&ext_rgmii_phy>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 
 	status = "okay";
 };
-- 
2.20.1