1 /* $NetBSD: lubbock_pcic.c,v 1.8 2023/12/20 13:55:18 thorpej 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 1.8 2023/12/20 13:55:18 thorpej 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
44 #include <sys/bus.h>
45
46 #include <dev/pcmcia/pcmciachip.h>
47 #include <dev/pcmcia/pcmciavar.h>
48 #include <arm/sa11x0/sa11x0_reg.h>
49 #include <arm/sa11x0/sa11x0_var.h>
50 #include <arm/sa11x0/sa1111_reg.h>
51 #include <arm/sa11x0/sa1111_var.h>
52 #include <arm/sa11x0/sa11x1_pcicreg.h>
53 #include <arm/sa11x0/sa11xx_pcicvar.h>
54 #include <arm/sa11x0/sa11x1_pcicvar.h>
55
56 #include <evbarm/lubbock/lubbock_reg.h>
57 #include <evbarm/lubbock/lubbock_var.h>
58
59 static int sacpcic_match(device_t, cfdata_t, void *);
60 static void sacpcic_attach(device_t, device_t, void *);
61 static void lubbock_set_power(struct sapcic_socket *so, int arg);
62 static void lubbock_socket_setup(struct sapcic_socket *sp);
63
64 static struct sapcic_tag lubbock_sacpcic_functions = {
65 sacpcic_read,
66 sacpcic_write,
67 lubbock_set_power,
68 sacpcic_clear_intr,
69 sacpcic_intr_establish,
70 sacpcic_intr_disestablish
71 };
72
73 CFATTACH_DECL_NEW(sacpcic, sizeof(struct sacpcic_softc),
74 sacpcic_match, sacpcic_attach, NULL, NULL);
75
76 static int
sacpcic_match(device_t parent,cfdata_t cf,void * aux)77 sacpcic_match(device_t parent, cfdata_t cf, void *aux)
78 {
79 return (1);
80 }
81
82 static void
lubbock_socket_setup(struct sapcic_socket * sp)83 lubbock_socket_setup(struct sapcic_socket *sp)
84 {
85 sp->power_capability = SAPCIC_POWER_5V | SAPCIC_POWER_3V;
86 sp->pcictag = &lubbock_sacpcic_functions;
87 }
88
89 static void
sacpcic_attach(device_t parent,device_t self,void * aux)90 sacpcic_attach(device_t parent, device_t self, void *aux)
91 {
92 struct sacpcic_softc *sc = device_private(self);
93
94 sc->sc_pc.sc_dev = self;
95 sacpcic_attach_common(device_private(parent),
96 sc, aux, lubbock_socket_setup);
97 }
98
99
100 static void
lubbock_set_power(struct sapcic_socket * so,int arg)101 lubbock_set_power(struct sapcic_socket *so, int arg)
102 {
103 struct sacc_softc *sc = so->pcictag_cookie;
104 struct obio_softc *bsc = device_private(device_parent(sc->sc_dev));
105 int s;
106 uint16_t tmp;
107
108 static const uint8_t vval_socket0[] = {
109 /* for socket0 (pcmcia) */
110 0x00, /* OFF */
111 0x08, /* 3.3V */
112 0x05, /* 5V */
113 };
114 static const uint16_t vval_socket1[] = {
115 /* for socket1 (CF) */
116 0x0000, /* OFF */
117 0x8000, /* 3.3V */
118 0x4000, /* 5V */
119 };
120
121 if( arg < 0 || SAPCIC_POWER_5V < arg )
122 panic("sacpcic_set_power: bogus arg\n");
123
124 switch( so->socket ){
125 case 0:
126 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SACCGPIOA_DVR,
127 vval_socket0[arg]);
128 break;
129 case 1:
130 s = splhigh();
131 tmp = bus_space_read_2(bsc->sc_iot, bsc->sc_obioreg_ioh,
132 LUBBOCK_MISCWR);
133 bus_space_write_2(bsc->sc_iot, bsc->sc_obioreg_ioh,
134 LUBBOCK_MISCWR, (tmp & 0x3fff) | vval_socket1[arg] );
135 splx(s);
136 break;
137 default:
138 aprint_normal("unknown socket number: %d\n", so->socket);
139 }
140 }
141