xref: /linux/arch/arm64/boot/dts/ti/k3-am654-pcie-usb3.dtso (revision 115e74a29b530d121891238e9551c4bcdf7b04b5)

// SPDX-License-Identifier: GPL-2.0-only OR MIT
/**
 * DT overlay for SERDES personality card: 1lane PCIe + USB3.0 DRD on AM654 EVM
 *
 * Copyright (C) 2018-2024 Texas Instruments Incorporated - http://www.ti.com/
 */

/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/phy/phy.h>
#include <dt-bindings/phy/phy-am654-serdes.h>

#include "k3-pinctrl.h"

&serdes1 {
	status = "okay";
};

&pcie1_rc {
	num-lanes = <1>;
	phys = <&serdes1 PHY_TYPE_PCIE 0>;
	phy-names = "pcie-phy0";
	reset-gpios = <&pca9555 5 GPIO_ACTIVE_HIGH>;
	status = "okay";
};

&main_pmx0 {
	usb0_pins_default: usb0-default-pins {
		pinctrl-single,pins = <
			AM65X_IOPAD(0x02bc, PIN_OUTPUT, 0) /* (AD9) USB0_DRVVBUS */
		>;
	};
};

&serdes0 {
	status = "okay";
	assigned-clocks = <&k3_clks 153 4>, <&serdes0 AM654_SERDES_CMU_REFCLK>;
	assigned-clock-parents = <&k3_clks 153 7>, <&k3_clks 153 4>;
};

&dwc3_0 {
	status = "okay";
	assigned-clock-parents = <&k3_clks 151 4>,      /* set REF_CLK to 20MHz i.e. PER0_PLL/48 */
	<&k3_clks 151 8>;      /* set PIPE3_TXB_CLK to WIZ8B2M4VSB */
	phys = <&serdes0 PHY_TYPE_USB3 0>;
	phy-names = "usb3-phy";
	bootph-all;
};

&usb0 {
	pinctrl-names = "default";
	pinctrl-0 = <&usb0_pins_default>;
	dr_mode = "host";
	maximum-speed = "super-speed";
	snps,dis-u1-entry-quirk;
	snps,dis-u2-entry-quirk;
};

&usb0_phy {
	status = "okay";
};