linux-kernel - [PATCH v1] ARM: dts: imx6q-marsboard: properly define rgmii PHY

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Message-Id: <20200306080353.9284-1-o.rempel@pengutronix.de>
Date:   Fri,  6 Mar 2020 09:03:53 +0100
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>
Cc:     Oleksij Rempel <o.rempel@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, Fabio Estevam <festevam@...il.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Mark Brown <broonie@...nel.org>, netdev@...r.kernel.org,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Russell King <linux@...linux.org.uk>
Subject: [PATCH v1] ARM: dts: imx6q-marsboard: properly define rgmii PHY

The Atheros AR8035 PHY can be autodetected but can't use interrupt
support provided on this board. Define MDIO bus and the PHY node to make
it work properly.

Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
 arch/arm/boot/dts/imx6q-marsboard.dts | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6q-marsboard.dts b/arch/arm/boot/dts/imx6q-marsboard.dts
index 84b30bd6908f..019488aaa30b 100644
--- a/arch/arm/boot/dts/imx6q-marsboard.dts
+++ b/arch/arm/boot/dts/imx6q-marsboard.dts
@@ -111,8 +111,23 @@ &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
 	phy-mode = "rgmii-id";
-	phy-reset-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
 	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		/* Atheros AR8035 PHY */
+		rgmii_phy: ethernet-phy@4 {
+			reg = <4>;
+
+			interrupts-extended = <&gpio1 28 IRQ_TYPE_LEVEL_LOW>;
+
+			reset-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
+			reset-assert-us = <10000>;
+			reset-deassert-us = <1000>;
+		};
+	};
 };
 
 &hdmi {
-- 
2.25.1