1/* $Id: imx23_usb.c,v 1.7 2024/01/15 17:29:27 andvar Exp $ */ 2 3/* 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Petri Laakso. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <sys/param.h> 33#include <sys/types.h> 34#include <sys/bus.h> 35#include <sys/errno.h> 36 37#include <arm/pic/picvar.h> 38 39#include <dev/usb/usb.h> 40#include <dev/usb/usbdi.h> 41#include <dev/usb/usbdivar.h> 42#include <dev/usb/usb_mem.h> 43#include <dev/usb/ehcireg.h> 44#include <dev/usb/ehcivar.h> 45#include <arm/imx/imxusbvar.h> 46#include <arm/imx/imxusbreg.h> 47 48#include <arm/mainbus/mainbus.h> 49 50#include <arm/imx/imx23_clkctrlvar.h> 51#include <arm/imx/imx23_digctlvar.h> 52#include <arm/imx/imx23_pinctrlvar.h> 53#include <arm/imx/imx23var.h> 54 55#include "locators.h" 56 57struct imx23_usb_softc { 58 struct imxusbc_softc sc_imxusbc; /* Must be first */ 59}; 60 61static int imx23_usb_match(device_t, cfdata_t, void *); 62static void imx23_usb_attach(device_t, device_t, void *); 63static int imx23_usb_activate(device_t, enum devact); 64 65static int imxusbc_search(device_t, cfdata_t, const int *, void *); 66static void imx23_usb_init(struct imxehci_softc *, uintptr_t); 67 68CFATTACH_DECL3_NEW(imxusbc, 69 sizeof(struct imx23_usb_softc), 70 imx23_usb_match, 71 imx23_usb_attach, 72 NULL, 73 imx23_usb_activate, 74 NULL, 75 NULL, 76 0 77); 78 79#define AHB_USB 0x80080000 80#define AHB_USB_SIZE 0x40000 81 82static int 83imx23_usb_match(device_t parent, cfdata_t match, void *aux) 84{ 85 struct ahb_attach_args *aa = aux; 86 87 if ((aa->aa_addr == AHB_USB) && (aa->aa_size == AHB_USB_SIZE)) 88 return 1; 89 90 return 0; 91} 92 93static void 94imx23_usb_attach(device_t parent, device_t self, void *aux) 95{ 96 struct imxusbc_softc *sc = device_private(self); 97 98 sc->sc_dev = self; 99 sc->sc_iot = &imx23_bus_space; 100 sc->sc_ehci_size = IMXUSB_EHCI_SIZE; 101 sc->sc_ehci_offset = IMXUSB_EHCI_SIZE; 102 103 sc->sc_init_md_hook = imx23_usb_init; 104 sc->sc_intr_establish_md_hook = NULL; 105 sc->sc_setup_md_hook = NULL; 106 107 if (bus_space_map(sc->sc_iot, AHB_USB, AHB_USB_SIZE, 0, &sc->sc_ioh)) { 108 aprint_error_dev(sc->sc_dev, "Unable to map bus space"); 109 return; 110 } 111 112 /* Enable PLL outputs for USB PHY. */ 113 clkctrl_en_usb(); 114 115 /* Enable external USB chip. */ 116 imx23_pinctrl_en_usb(); 117 118 /* USB clock on. */ 119 digctl_usb_clkgate(0); 120 121 aprint_normal("\n"); 122 123 /* attach OTG/EHCI host controllers */ 124 config_search(self, NULL, 125 CFARGS(.search = imxusbc_search)); 126 127 return; 128} 129 130static int 131imx23_usb_activate(device_t self, enum devact act) 132{ 133 return EOPNOTSUPP; 134} 135 136static int 137imxusbc_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux) 138{ 139 struct imxusbc_softc *sc = device_private(parent); 140 struct imxusbc_attach_args aa; 141 142 aa.aa_iot = sc->sc_iot; 143 aa.aa_ioh = sc->sc_ioh; 144 aa.aa_dmat = &imx23_bus_dma_tag; 145 aa.aa_unit = cf->cf_loc[IMXUSBCCF_UNIT]; 146 aa.aa_irq = cf->cf_loc[IMXUSBCCF_IRQ]; 147 148 if (config_probe(parent, cf, &aa)) 149 config_attach(parent, cf, &aa, NULL, CFARGS_NONE); 150 151 return 0; 152} 153 154static 155void imx23_usb_init(struct imxehci_softc *sc, uintptr_t data) 156{ 157 158 sc->sc_iftype = IMXUSBC_IF_UTMI; 159 160 return; 161} 162