linux-kernel - [PATCH 2/2] arm64: dts: imx8mq-evk: add phy-reset-gpios for fec1

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Date:   Fri, 14 Feb 2020 16:27:50 -0300
From:   Alifer Moraes <alifer.wsdm@...il.com>
To:     robh+dt@...nel.org
Cc:     mark.rutland@....com, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        peng.fan@....com, leonard.crestez@....com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alifer Moraes <alifer.wsdm@...il.com>
Subject: [PATCH 2/2] arm64: dts: imx8mq-evk: add phy-reset-gpios for fec1

imx8mq-evk has a GPIO connected to AR8031 Ethernet PHY's reset pin.

Describe it in the device tree, following phy's datasheet reset duration of 10ms.

Tested booting via NFS.

Signed-off-by: Alifer Moraes <alifer.wsdm@...il.com>
---
 arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index c36685916683..a49e2bf8afe5 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
@@ -110,6 +110,8 @@
 	pinctrl-0 = <&pinctrl_fec1>;
 	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy0>;
+	phy-reset-gpios = <&gpio1 9  GPIO_ACTIVE_LOW>;
+	phy-reset-duration = <10>;
 	fsl,magic-packet;
 	status = "okay";
 
-- 
2.17.1