linux-kernel - [PATCH v4 14/15] arm64: dts: freescale: imx93-phyboard-segin: Add EQOS Ethernet

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Message-Id: <20250422105644.2725168-15-primoz.fiser@norik.com>
Date: Tue, 22 Apr 2025 12:56:43 +0200
From: Primoz Fiser <primoz.fiser@...ik.com>
To: 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>
Cc: devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	upstream@...ts.phytec.de
Subject: [PATCH v4 14/15] arm64: dts: freescale: imx93-phyboard-segin: Add EQOS Ethernet

Add support for the carrier-board Micrel KSZ8081 Ethernet PHY. This is a
10/100Mbit PHY connected to the EQOS interface and shares MDIO bus with
the Ethernet PHY located on the SoM (FEC interface).

Signed-off-by: Primoz Fiser <primoz.fiser@...ik.com>
Reviewed-by: Frank Li <Frank.Li@....com>
---
Changes in v4:
- no changes

 .../dts/freescale/imx93-phyboard-segin.dts    | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts b/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
index 54e084e69706..c62cc06fad4b 100644
--- a/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
@@ -89,6 +89,28 @@ dailink_master: simple-audio-card,codec {
 	};
 };
 
+/* Ethernet */
+&eqos {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_eqos>;
+	phy-mode = "rmii";
+	phy-handle = <&ethphy2>;
+	assigned-clock-parents = <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>,
+				 <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>;
+	assigned-clock-rates = <100000000>, <50000000>;
+	status = "okay";
+};
+
+&mdio {
+	ethphy2: ethernet-phy@2 {
+		compatible = "ethernet-phy-id0022.1561";
+		reg = <2>;
+		clocks = <&clk IMX93_CLK_ENET_REF_PHY>;
+		clock-names = "rmii-ref";
+		micrel,led-mode = <1>;
+	};
+};
+
 /* CAN */
 &flexcan1 {
 	pinctrl-names = "default";
@@ -173,6 +195,19 @@ &usdhc2 {
 };
 
 &iomuxc {
+	pinctrl_eqos: eqosgrp {
+		fsl,pins = <
+			MX93_PAD_ENET1_TD2__CCM_ENET_QOS_CLOCK_GENERATE_REF_CLK	0x4000050e
+			MX93_PAD_ENET1_RD0__ENET_QOS_RGMII_RD0		0x57e
+			MX93_PAD_ENET1_RD1__ENET_QOS_RGMII_RD1		0x57e
+			MX93_PAD_ENET1_TD0__ENET_QOS_RGMII_TD0		0x50e
+			MX93_PAD_ENET1_TD1__ENET_QOS_RGMII_TD1		0x50e
+			MX93_PAD_ENET1_RX_CTL__ENET_QOS_RGMII_RX_CTL	0x57e
+			MX93_PAD_ENET1_TX_CTL__ENET_QOS_RGMII_TX_CTL	0x50e
+			MX93_PAD_ENET1_RXC__ENET_QOS_RX_ER		0x57e
+		>;
+	};
+
 	pinctrl_flexcan1: flexcan1grp {
 		fsl,pins = <
 			MX93_PAD_PDM_BIT_STREAM0__CAN1_RX	0x139e
-- 
2.34.1