linux-kernel - [PATCH v2] arm64: dts: allwinner: a64-olinuxino: set the PHY TX delay

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Date:   Wed, 26 Sep 2018 19:48:24 +0000
From:   Rodrigo Exterckötter Tjäder 
        <rodrigo@...der.xyz>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Rodrigo Exterckötter Tjäder 
        <rodrigo@...der.xyz>, Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2] arm64: dts: allwinner: a64-olinuxino: set the PHY TX delay

The PHY found on the A64-OLinuXino requires a TX delay in order to
operate properly. Olimex uses a 600ps second delay in their BSP, and
that has been found to work, so let's use that value in the current
DT.

Signed-off-by: Rodrigo Exterckötter Tjäder <rodrigo@...der.xyz>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
index 6ef3dd4c2389..f7a4bccaa5d4 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
@@ -105,6 +105,7 @@
 	phy-mode = "rgmii";
 	phy-handle = <&ext_rgmii_phy>;
 	phy-supply = <&reg_dcdc1>;
+	allwinner,tx-delay-ps = <600>;
 	status = "okay";
 };
 
-- 
2.11.0