1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * Copyright (C) 2023 Josua Mayer <josua@solid-run.com> 4 * 5 * Overlay for SolidRun AM642 HummingBoard-T to enable PCI-E. 6 */ 7 8/dts-v1/; 9/plugin/; 10 11#include <dt-bindings/gpio/gpio.h> 12#include <dt-bindings/phy/phy.h> 13 14#include "k3-serdes.h" 15 16&pcie0_rc { 17 pinctrl-names = "default"; 18 pinctrl-0 = <&pcie0_default_pins>; 19 reset-gpios = <&main_gpio1 15 GPIO_ACTIVE_HIGH>; 20 phys = <&serdes0_link>; 21 phy-names = "pcie-phy"; 22 num-lanes = <1>; 23 status = "okay"; 24}; 25 26&serdes0 { 27 #address-cells = <1>; 28 #size-cells = <0>; 29 30 serdes0_link: phy@0 { 31 reg = <0>; 32 cdns,num-lanes = <1>; 33 cdns,phy-type = <PHY_TYPE_PCIE>; 34 #phy-cells = <0>; 35 resets = <&serdes_wiz0 1>; 36 }; 37}; 38 39&serdes_ln_ctrl { 40 idle-states = <AM64_SERDES0_LANE0_PCIE0>; 41}; 42 43&serdes_mux { 44 idle-state = <1>; 45}; 46