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ARM: dts: imx6q-tbs2910: Add an mdio node

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imx6q-tbs2910 has an Atheros AR8035 Ethernet PHY at address 4.

The AR8035 provides a 125MHz clock to the ENET_REF_CLK i.MX6 pin.

Improve the Ethernet representation by adding an mdio node with such
information.

This fixes an Ethernet regression in U-Boot as U-Boot AR803X driver now
expects the 'qca,clk-out-frequency' property to be passed via
device tree.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Soeren Moch <smoch@web.de>
Tested-by: Soeren Moch <smoch@web.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Fabio Estevam 2020-07-13 10:05:08 -03:00 • committed by Shawn Guo
parent cfe7d1bd11
commit 9c852ad98f
1 changed files with 11 additions and 0 deletions
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11
arch/arm/boot/dts/imx6q-tbs2910.dts
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@ -100,7 +100,18 @@
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii-id";
phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
phy-handle = <&phy>;
status = "okay";
mdio {
#address-cells = <1>;
#size-cells = <0>;
phy: ethernet-phy@4 {
reg = <4>;
qca,clk-out-frequency = <125000000>;
};
};
};
&hdmi {