1// SPDX-License-Identifier: GPL-2.0-only OR MIT 2/** 3 * DT overlay for SERDES personality card: 2lane PCIe + USB2.0 Host on AM654 EVM 4 * 5 * Copyright (C) 2018-2024 Texas Instruments Incorporated - https://www.ti.com/ 6 */ 7 8/dts-v1/; 9/plugin/; 10#include <dt-bindings/gpio/gpio.h> 11#include <dt-bindings/phy/phy.h> 12#include <dt-bindings/phy/phy-am654-serdes.h> 13#include "k3-pinctrl.h" 14 15&serdes0 { 16 assigned-clocks = <&k3_clks 153 4>, 17 <&serdes0 AM654_SERDES_CMU_REFCLK>, 18 <&serdes0 AM654_SERDES_RO_REFCLK>; 19 assigned-clock-parents = <&k3_clks 153 8>, 20 <&k3_clks 153 4>, 21 <&k3_clks 153 4>; 22 status = "okay"; 23}; 24 25&serdes1 { 26 assigned-clocks = <&serdes1 AM654_SERDES_CMU_REFCLK>; 27 assigned-clock-parents = <&serdes0 AM654_SERDES_RO_REFCLK>; 28 status = "okay"; 29}; 30 31&pcie0_rc { 32 num-lanes = <2>; 33 phys = <&serdes0 PHY_TYPE_PCIE 1>, <&serdes1 PHY_TYPE_PCIE 1>; 34 phy-names = "pcie-phy0", "pcie-phy1"; 35 reset-gpios = <&pca9555 5 GPIO_ACTIVE_HIGH>; 36 status = "okay"; 37}; 38 39&main_pmx0 { 40 usb0_pins_default: usb0-default-pins { 41 pinctrl-single,pins = < 42 AM65X_IOPAD(0x02bc, PIN_OUTPUT, 0) /* (AD9) USB0_DRVVBUS */ 43 >; 44 }; 45}; 46 47&dwc3_0 { 48 status = "okay"; 49}; 50 51&usb0_phy { 52 status = "okay"; 53}; 54 55&usb0 { 56 pinctrl-names = "default"; 57 pinctrl-0 = <&usb0_pins_default>; 58 dr_mode = "host"; 59}; 60