[PATCH PRELIMINARY 3/5] arm64: dts: qcom: shikra-cqm-evk: enable the first Ethernet port

[Mohd Ayaan Anwar]

Enable ethernet0 for the Shikra CQM EVK board with its DP83867 RGMII
PHY. The PHY is powered on using a GPIO-controlled 2.5V regulator.

Signed-off-by: Mohd Ayaan Anwar <mohd.anwar@xxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts | 46 +++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts b/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts
index b112b21b1d79b73563d17ae68d7c51460ddb1b22..d093b80034823fbc41fb59366d22fc84fbe8bcb0 100644
--- a/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts
+++ b/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts
@@ -21,6 +21,42 @@ aliases {
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	rgmii_phy_supply: regulator-rgmii-phy {
+		compatible = "regulator-fixed";
+		regulator-name = "rgmii-phy-pwr";
+		regulator-min-microvolt = <2500000>;
+		regulator-max-microvolt = <2500000>;
+		gpio = <&tlmm 149 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		pinctrl-0 = <&rgmii_phy_pwr_default>;
+		pinctrl-names = "default";
+	};
+};
+
+&ethernet0 {
+	phy-handle = <&rgmii_phy>;
+	phy-mode = "rgmii-id";
+
+	pinctrl-0 = <&ethernet0_default>;
+	pinctrl-names = "default";
+
+	status = "okay";
+
+	mdio {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		rgmii_phy: ethernet-phy@7 {
+			compatible = "ethernet-phy-id2000.a231";
+			reg = <0x7>;
+			reset-gpios = <&tlmm 135 GPIO_ACTIVE_LOW>;
+			reset-assert-us = <10000>;
+			reset-deassert-us = <50000>;
+			vdda-2p5-supply = <&rgmii_phy_supply>;
+		};
+	};
 };
 
 &remoteproc_cdsp {
@@ -57,3 +93,13 @@ &sdhc_1 {
 
 	status = "okay";
 };
+
+&tlmm {
+	rgmii_phy_pwr_default: rgmii-phy-pwr-default-state {
+		pins = "gpio149";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+		output-low;
+	};
+};

-- 
2.34.1