1/*	$NetBSD: imx51_usb.c,v 1.7 2021/08/07 16:18:44 thorpej Exp $	*/
2/*
3 * Copyright (c) 2010  Genetec Corporation.  All rights reserved.
4 * Written by Hiroyuki Bessho for Genetec Corporation.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GENETEC CORPORATION
19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27#include <sys/cdefs.h>
28__KERNEL_RCSID(0, "$NetBSD: imx51_usb.c,v 1.7 2021/08/07 16:18:44 thorpej Exp $");
29
30#include "locators.h"
31#include "opt_imx.h"
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/conf.h>
36#include <sys/kernel.h>
37#include <sys/device.h>
38#include <sys/intr.h>
39#include <sys/bus.h>
40
41#include <dev/usb/usb.h>
42#include <dev/usb/usbdi.h>
43#include <dev/usb/usbdivar.h>
44#include <dev/usb/usb_mem.h>
45
46#include <dev/usb/ehcireg.h>
47#include <dev/usb/ehcivar.h>
48
49#include <arm/imx/imx51reg.h>
50#include <arm/imx/imx51var.h>
51#include <arm/imx/imxusbvar.h>
52#include <arm/imx/imxusbreg.h>
53
54static int imxusbc_search(device_t, cfdata_t, const int *, void *);
55static int imxusbc_print(void *, const char *);
56
57int
58imxusbc_attach_common(device_t parent, device_t self, bus_space_tag_t iot,
59    bus_addr_t addr, bus_size_t size)
60{
61	struct imxusbc_softc *sc = device_private(self);
62
63	sc->sc_dev = self;
64	sc->sc_iot = iot;
65	sc->sc_ehci_size = IMXUSB_EHCI_SIZE;
66	sc->sc_ehci_offset = IMXUSB_EHCI_SIZE;
67
68	/* Map entire USBOH3 registers.  Host controller drivers
69	 * re-use subregions of this. */
70	if (bus_space_map(iot, addr, size, 0, &sc->sc_ioh))
71		return -1;
72
73	/* attach OTG/EHCI host controllers */
74	config_search(self, NULL,
75	    CFARGS(.search = imxusbc_search));
76
77	return 0;
78}
79
80static int
81imxusbc_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
82{
83	struct imxusbc_softc *sc = device_private(parent);
84	struct imxusbc_attach_args aa;
85
86	aa.aa_iot = sc->sc_iot;
87	aa.aa_ioh = sc->sc_ioh;
88	aa.aa_dmat = &arm_generic_dma_tag;
89	aa.aa_unit = cf->cf_loc[IMXUSBCCF_UNIT];
90	aa.aa_irq = cf->cf_loc[IMXUSBCCF_IRQ];
91
92	if (config_probe(parent, cf, &aa))
93		config_attach(parent, cf, &aa, imxusbc_print, CFARGS_NONE);
94
95	return 0;
96}
97
98/* ARGSUSED */
99static int
100imxusbc_print(void *aux, const char *name __unused)
101{
102	struct imxusbc_attach_args *aa = aux;
103
104	aprint_normal(" unit %d irq %d", aa->aa_unit, aa->aa_irq);
105	return (UNCONF);
106}
107