Re: [PATCHv1 2/4] ARM: dts: imx: ba16: improve PHY information

From: Shawn Guo
Date: Sun Mar 07 2021 - 19:39:34 EST


On Tue, Feb 23, 2021 at 07:33:44PM +0100, Sebastian Reichel wrote:
> Add PHY voltage supply information fixing the following kernel message:
>
> 2188000.ethernet supply phy not found, using dummy regulator
>
> Also add PHY clock information to avoid depending on the bootloader
> programming correct values.
>
> The bootloader also sets some reserved registers in the PHY as
> advised by Qualcomm, which is not supported by the bindings/kernel
> driver, so the reset GPIO has not been added intentionally.
>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/imx6q-ba16.dtsi | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6q-ba16.dtsi b/arch/arm/boot/dts/imx6q-ba16.dtsi
> index 4793ef5171aa..a684d999e605 100644
> --- a/arch/arm/boot/dts/imx6q-ba16.dtsi
> +++ b/arch/arm/boot/dts/imx6q-ba16.dtsi
> @@ -177,6 +177,18 @@ &fec {
> pinctrl-0 = <&pinctrl_enet>;
> phy-mode = "rgmii-id";
> status = "okay";
> + phy-supply = <&reg_3p3v>;
> + phy-handle = <&phy0>;

Please keep 'status' at end.

Shawn

> +
> + mdio {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + phy0: ethernet-phy@4 {
> + reg = <4>;
> + qca,clk-out-frequency = <125000000>;
> + };
> + };
> };
>
> &hdmi {
> --
> 2.30.0
>