linux-kernel - [PATCHv2 2/4] ARM: dts: imx6q-ba16: improve PHY information

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Message-Id: <20210308151829.60056-3-sebastian.reichel@collabora.com>
Date:   Mon,  8 Mar 2021 16:18:27 +0100
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Sebastian Reichel <sebastian.reichel@...labora.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>
Cc:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com
Subject: [PATCHv2 2/4] ARM: dts: imx6q-ba16: improve PHY information

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@...labora.com>
---
 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 826fd51b1d98..6330d75f8f39 100644
--- a/arch/arm/boot/dts/imx6q-ba16.dtsi
+++ b/arch/arm/boot/dts/imx6q-ba16.dtsi
@@ -175,7 +175,19 @@ &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
 	phy-mode = "rgmii-id";
+	phy-supply = <&reg_3p3v>;
+	phy-handle = <&phy0>;
 	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy0: ethernet-phy@4 {
+			reg = <4>;
+			qca,clk-out-frequency = <125000000>;
+		};
+	};
 };
 
 &hdmi {
-- 
2.30.1