[PATCH 13/13] arm64: dts: freescale: imx93-phyboard-segin: Add EQOS Ethernet

Primoz Fiser
2025-04-10T09:03:12Z

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@norik.com>
---
.../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 08574b146400..92f0cb6eca26 100644
--- a/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
@@ -91,6 +91,28 @@ 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";
@@ -176,6 +198,19 @@ &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