mirror_ubuntu-kernels/arch/arm64/boot/dts/ti/k3-j721e-evm-quad-port-eth-exp.dtso

// SPDX-License-Identifier: GPL-2.0
/**
 * DT Overlay for CPSW9G in QSGMII mode using J7 Quad Port ETH EXP Add-On Ethernet Card with
 * J721E board.
 *
 * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
 */

/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/phy/phy.h>
#include <dt-bindings/phy/phy-cadence.h>

#include "k3-pinctrl.h"
#include "k3-serdes.h"

&{/} {
	aliases {
		ethernet1 = "/bus@100000/ethernet@c000000/ethernet-ports/port@1";
		ethernet2 = "/bus@100000/ethernet@c000000/ethernet-ports/port@2";
		ethernet3 = "/bus@100000/ethernet@c000000/ethernet-ports/port@3";
		ethernet4 = "/bus@100000/ethernet@c000000/ethernet-ports/port@4";
	};
};

&cpsw0 {
	status = "okay";
};

&cpsw0_port1 {
	status = "okay";
	phy-handle = <&cpsw9g_phy0>;
	phy-mode = "qsgmii";
	mac-address = [00 00 00 00 00 00];
	phys = <&cpsw0_phy_gmii_sel 1>;
};

&cpsw0_port2 {
	status = "okay";
	phy-handle = <&cpsw9g_phy1>;
	phy-mode = "qsgmii";
	mac-address = [00 00 00 00 00 00];
	phys = <&cpsw0_phy_gmii_sel 2>;
};

&cpsw0_port3 {
	status = "okay";
	phy-handle = <&cpsw9g_phy2>;
	phy-mode = "qsgmii";
	mac-address = [00 00 00 00 00 00];
	phys = <&cpsw0_phy_gmii_sel 3>;
};

&cpsw0_port4 {
	status = "okay";
	phy-handle = <&cpsw9g_phy3>;
	phy-mode = "qsgmii";
	mac-address = [00 00 00 00 00 00];
	phys = <&cpsw0_phy_gmii_sel 4>;
};

&cpsw9g_mdio {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&mdio0_pins_default>;
	reset-gpios = <&exp2 17 GPIO_ACTIVE_LOW>;
	reset-post-delay-us = <120000>;
	#address-cells = <1>;
	#size-cells = <0>;

	cpsw9g_phy0: ethernet-phy@17 {
		reg = <17>;
	};
	cpsw9g_phy1: ethernet-phy@16 {
		reg = <16>;
	};
	cpsw9g_phy2: ethernet-phy@18 {
		reg = <18>;
	};
	cpsw9g_phy3: ethernet-phy@19 {
		reg = <19>;
	};
};

&exp2 {
	qsgmii-line-hog {
		gpio-hog;
		gpios = <16 GPIO_ACTIVE_HIGH>;
		output-low;
		line-name = "qsgmii-pwrdn-line";
	};
};

&main_pmx0 {
	mdio0_pins_default: mdio0-default-pins {
		pinctrl-single,pins = <
			J721E_IOPAD(0x1bc, PIN_OUTPUT, 0) /* (V24) MDIO0_MDC */
			J721E_IOPAD(0x1b8, PIN_INPUT, 0) /* (V26) MDIO0_MDIO */
		>;
	};
};

&serdes_ln_ctrl {
	idle-states = <J721E_SERDES0_LANE0_PCIE0_LANE0>, <J721E_SERDES0_LANE1_QSGMII_LANE2>,
		      <J721E_SERDES1_LANE0_PCIE1_LANE0>, <J721E_SERDES1_LANE1_PCIE1_LANE1>,
		      <J721E_SERDES2_LANE0_PCIE2_LANE0>, <J721E_SERDES2_LANE1_PCIE2_LANE1>,
		      <J721E_SERDES3_LANE0_USB3_0_SWAP>, <J721E_SERDES3_LANE1_USB3_0>,
		      <J721E_SERDES4_LANE0_EDP_LANE0>, <J721E_SERDES4_LANE1_EDP_LANE1>,
		      <J721E_SERDES4_LANE2_EDP_LANE2>, <J721E_SERDES4_LANE3_EDP_LANE3>;
};

&serdes_wiz0 {
	status = "okay";
};

&serdes0 {
	status = "okay";

	assigned-clocks = <&serdes0 CDNS_SIERRA_PLL_CMNLC>, <&serdes0 CDNS_SIERRA_PLL_CMNLC1>;
	assigned-clock-parents = <&wiz0_pll1_refclk>, <&wiz0_pll1_refclk>;
	#address-cells = <1>;
	#size-cells = <0>;

	serdes0_qsgmii_link: phy@1 {
		reg = <1>;
		cdns,num-lanes = <1>;
		#phy-cells = <0>;
		cdns,phy-type = <PHY_TYPE_QSGMII>;
		resets = <&serdes_wiz0 2>;
	};
};