linux-kernel - [PATCH 3/3] arm64: allwinner: a64: dts: apply hack for RTL8211E on Pine64+

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Date:   Tue,  1 Oct 2019 16:29:12 +0800
From:   Icenowy Zheng <icenowy@...c.io>
To:     "David S . Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...glegroups.com, Icenowy Zheng <icenowy@...c.io>
Subject: [PATCH 3/3] arm64: allwinner: a64: dts: apply hack for RTL8211E on Pine64+

Some of the Pine64+ boards are known to use a batch of broken RTL8211E
PHYs. A magic number that is in an undocumented field of a register is
passed from Realtek via Pine64.

Add the property to apply the hack to the Pine64+ device tree.

Signed-off-by: Icenowy Zheng <icenowy@...c.io>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
index 24f1aac366d6..4d68f850d03a 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
@@ -61,5 +61,6 @@
 	ext_rgmii_phy: ethernet-phy@1 {
 		compatible = "ethernet-phy-ieee802.3-c22";
 		reg = <1>;
+		realtek,config-magic-for-pine64;
 	};
 };
-- 
2.21.0