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
54 static int imxusbc_search(device_t, cfdata_t, const int *, void *);
55 static int imxusbc_print(void *, const char *);
56
57 int
imxusbc_attach_common(device_t parent,device_t self,bus_space_tag_t iot,bus_addr_t addr,bus_size_t size)58 imxusbc_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
80 static int
imxusbc_search(device_t parent,cfdata_t cf,const int * ldesc,void * aux)81 imxusbc_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 */
99 static int
imxusbc_print(void * aux,const char * name __unused)100 imxusbc_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