arm64: dts: imx8mm-evk: add phy-reset-gpios for fec1

imx8mm-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@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
index 9e54747..951e14a 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
@@ -107,6 +107,8 @@
        pinctrl-0 = <&pinctrl_fec1>;
        phy-mode = "rgmii-id";
        phy-handle = <&ethphy0>;
+       phy-reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
+       phy-reset-duration = <10>;
        fsl,magic-packet;
        status = "okay";