exynos_usbphy.c revision 1.1.2.2 
1/*	$NetBSD: exynos_usbphy.c,v 1.1.2.2 2016/03/19 11:29:57 skrll Exp $	*/
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Reinoud Zandijk.
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 "locators.h"
33#include "ohci.h"
34#include "ehci.h"
35
36#include <sys/cdefs.h>
37
38__KERNEL_RCSID(1, "$NetBSD: exynos_usbphy.c,v 1.1.2.2 2016/03/19 11:29:57 skrll Exp $");
39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/kernel.h>
43#include <sys/intr.h>
44#include <sys/bus.h>
45#include <sys/device.h>
46#include <sys/proc.h>
47#include <sys/queue.h>
48#include <sys/kmem.h>
49#include <sys/gpio.h>
50
51#include <dev/usb/usb.h>
52#include <dev/usb/usbdi.h>
53#include <dev/usb/usbdivar.h>
54#include <dev/usb/usb_mem.h>
55
56#include <arm/samsung/exynos_reg.h>
57#include <arm/samsung/exynos_var.h>
58
59#include <dev/fdt/fdtvar.h>
60
61struct exynos_usbphy_softc {
62	device_t	 sc_dev;
63	bus_space_tag_t  sc_bst;
64	bus_space_handle_t sc_bsh;
65};
66
67static int	exynos_usbphy_match(device_t, cfdata_t, void *);
68static void	exynos_usbphy_attach(device_t, device_t, void *);
69
70CFATTACH_DECL_NEW(exynos_usbphy, sizeof(struct exynos_usbphy_softc),
71    exynos_usbphy_match, exynos_usbphy_attach, NULL, NULL);
72
73
74static int
75exynos_usbphy_match(device_t parent, cfdata_t cf, void *aux)
76{
77	const char * const compatible[] = { "samsung,exynos5-usb2phy",
78					    NULL };
79	struct fdt_attach_args * const faa = aux;
80	return of_match_compatible(faa->faa_phandle, compatible);
81}
82
83
84static void
85exynos_usbphy_attach(device_t parent, device_t self, void *aux)
86{
87	struct exynos_usbphy_softc *sc = device_private(self);
88	struct fdt_attach_args * const faa = aux;
89	bus_addr_t addr;
90	bus_size_t size;
91	int error;
92
93	if (fdtbus_get_reg(faa->faa_phandle, 0, &addr, &size) != 0) {
94		aprint_error(": couldn't get registers\n");
95		return;
96	}
97
98	sc->sc_dev = self;
99	sc->sc_bst = faa->faa_bst;
100
101	error = bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh);
102	if (error) {
103		aprint_error(": couldn't map %#llx: %d",
104			     (uint64_t)addr, error);
105		return;
106	}
107
108	aprint_normal(": USB 2 PHY NOT IMPLEMENTED\n");
109}
110