linux-kernel - Re: [PATCH 08/13] arm64: dts: imx95-19x19-evk: Add phy supply for netc

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Message-ID: <CAJ+vNU2hro_ZoRvmQ9yowKsX25AnrgZdGMn2D-RCkyJA02CEhA@mail.gmail.com>
Date: Mon, 8 Sep 2025 16:43:25 -0700
From: Tim Harvey <tharvey@...eworks.com>
To: Peng Fan <peng.fan@....com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
	Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, 
	Fabio Estevam <festevam@...il.com>, Frank Li <Frank.Li@....com>, devicetree@...r.kernel.org, 
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/13] arm64: dts: imx95-19x19-evk: Add phy supply for netc

On Fri, Aug 15, 2025 at 4:50 AM Peng Fan <peng.fan@....com> wrote:
>
> Add phy supply for netc emdio on board.
>
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> index 39815b21d235d2f8cfa49720d3be49d056ea039a..feee6da65d37cae7413b09216014d6fe2b76b032 100644
> --- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> @@ -226,6 +226,25 @@ sound-wm8962 {
>                                 "IN3R", "AMIC",
>                                 "IN1R", "AMIC";
>         };
> +
> +       reg_aqr_stby: regulator-aqr-stby {
> +               compatible = "regulator-fixed";
> +               regulator-name = "aqr-stby";
> +               regulator-min-microvolt = <3300000>;
> +               regulator-max-microvolt = <3300000>;
> +               gpio = <&i2c5_pcal6408 1 GPIO_ACTIVE_HIGH>;
> +               enable-active-high;
> +       };
> +
> +       reg_aqr_en: regulator-aqr-en {
> +               compatible = "regulator-fixed";
> +               regulator-name = "aqr-en";
> +               regulator-min-microvolt = <3300000>;
> +               regulator-max-microvolt = <3300000>;
> +               vin-supply = <&reg_aqr_stby>;
> +               gpio = <&i2c5_pcal6408 0 GPIO_ACTIVE_HIGH>;
> +               enable-active-high;
> +       };
>  };
>
>  &adc1 {
> @@ -502,6 +521,7 @@ &netc_blk_ctrl {
>  &netc_emdio {
>         pinctrl-names = "default";
>         pinctrl-0 = <&pinctrl_emdio>;
> +       phy-supply = <&reg_aqr_en>;
>         status = "okay";
>
>         ethphy0: ethernet-phy@1 {
>
> --
> 2.37.1
>
>

Hi Peng,

I'm not sure where you are with regards to this patch but it indicates
to me that you may have the enetc_port2 10G port with the AQR113 PHY
working on the imx95-19x19-evk with upstream Linux. If so I would be
interested in knowing what other patches you have for that. I'm seeing
the interface fail to register with:
nxp_enetc4 0002:00:10.0 eth2: PHY has no common interfaces

I'm wondering if there is some support missing from enetc or the
aquantia phy required to work with 10gbase-r.

Best Regards,

Tim