lubbock_pcic.c revision 1.7 
1/*      $NetBSD: lubbock_pcic.c,v 1.7 2011/07/01 20:42:37 dyoung Exp $	*/
2
3/*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by IWAMOTO Toshihiro.
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/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: lubbock_pcic.c,v 1.7 2011/07/01 20:42:37 dyoung Exp $");
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/types.h>
38#include <sys/conf.h>
39#include <sys/file.h>
40#include <sys/device.h>
41#include <sys/kernel.h>
42#include <sys/kthread.h>
43#include <sys/malloc.h>
44
45#include <sys/bus.h>
46
47#include <dev/pcmcia/pcmciachip.h>
48#include <dev/pcmcia/pcmciavar.h>
49#include <arm/sa11x0/sa11x0_reg.h>
50#include <arm/sa11x0/sa11x0_var.h>
51#include <arm/sa11x0/sa1111_reg.h>
52#include <arm/sa11x0/sa1111_var.h>
53#include <arm/sa11x0/sa11x1_pcicreg.h>
54#include <arm/sa11x0/sa11xx_pcicvar.h>
55#include <arm/sa11x0/sa11x1_pcicvar.h>
56
57#include <evbarm/lubbock/lubbock_reg.h>
58#include <evbarm/lubbock/lubbock_var.h>
59
60static	int	sacpcic_match(device_t, cfdata_t, void *);
61static	void	sacpcic_attach(device_t, device_t, void *);
62static	void	lubbock_set_power(struct sapcic_socket *so, int arg);
63static	void	lubbock_socket_setup(struct sapcic_socket *sp);
64
65static struct sapcic_tag lubbock_sacpcic_functions = {
66	sacpcic_read,
67	sacpcic_write,
68	lubbock_set_power,
69	sacpcic_clear_intr,
70	sacpcic_intr_establish,
71	sacpcic_intr_disestablish
72};
73
74CFATTACH_DECL_NEW(sacpcic, sizeof(struct sacpcic_softc),
75    sacpcic_match, sacpcic_attach, NULL, NULL);
76
77static int
78sacpcic_match(device_t parent, cfdata_t cf, void *aux)
79{
80	return (1);
81}
82
83static void
84lubbock_socket_setup(struct sapcic_socket *sp)
85{
86	sp->power_capability = SAPCIC_POWER_5V | SAPCIC_POWER_3V;
87	sp->pcictag = &lubbock_sacpcic_functions;
88}
89
90static void
91sacpcic_attach(device_t parent, device_t self, void *aux)
92{
93	struct sacpcic_softc *sc = device_private(self);
94
95	sc->sc_pc.sc_dev = self;
96	sacpcic_attach_common(device_private(parent),
97	    sc, aux, lubbock_socket_setup);
98}
99
100
101static void
102lubbock_set_power(struct sapcic_socket *so, int arg)
103{
104	struct sacc_softc *sc = so->pcictag_cookie;
105	struct obio_softc *bsc = device_private(device_parent(sc->sc_dev));
106	int s;
107	uint16_t tmp;
108
109	static const uint8_t vval_socket0[] = {
110		/* for socket0 (pcmcia) */
111		0x00,		/* OFF */
112		0x08,		/* 3.3V */
113		0x05,		/* 5V */
114	};
115	static const uint16_t vval_socket1[] = {
116		/* for socket1 (CF) */
117		0x0000,		/* OFF */
118		0x8000,		/* 3.3V */
119		0x4000,		/* 5V */
120	};
121
122	if( arg < 0 || SAPCIC_POWER_5V < arg )
123		panic("sacpcic_set_power: bogus arg\n");
124
125	switch( so->socket ){
126	case 0:
127		bus_space_write_4(sc->sc_iot, sc->sc_ioh, SACCGPIOA_DVR,
128				  vval_socket0[arg]);
129		break;
130	case 1:
131		s = splhigh();
132		tmp = bus_space_read_2(bsc->sc_iot, bsc->sc_obioreg_ioh,
133		    LUBBOCK_MISCWR);
134		bus_space_write_2(bsc->sc_iot, bsc->sc_obioreg_ioh,
135		    LUBBOCK_MISCWR, (tmp & 0x3fff) | vval_socket1[arg] );
136		splx(s);
137		break;
138	default:
139		aprint_normal("unknown socket number: %d\n", so->socket);
140	}
141}
142