1 /* $NetBSD: a1k2cp.c,v 1.5 2021/08/07 16:18:41 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2012 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Radoslaw Kujawa.
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 /* Driver for A1200 on-board clockport. */
33
34 #include <sys/cdefs.h>
35
36 #include <sys/systm.h>
37 #include <sys/types.h>
38 #include <sys/device.h>
39 #include <sys/bus.h>
40 #include <sys/conf.h>
41 #include <sys/kmem.h>
42
43 #include <machine/cpu.h>
44
45 #include <amiga/amiga/device.h>
46
47 #include <amiga/dev/zbusvar.h>
48
49 #include <amiga/clockport/clockportvar.h>
50
51 /* #define A1K2CP_DEBUG 1 */
52
53 #define A1K2CP_BASE 0xD80001
54
55 static int a1k2cp_match(device_t, cfdata_t, void *);
56 static void a1k2cp_attach(device_t, device_t, void *);
57
58 struct a1k2cp_softc {
59 device_t sc_dev;
60 };
61
62 CFATTACH_DECL_NEW(a1k2cp, sizeof(struct a1k2cp_softc),
63 a1k2cp_match, a1k2cp_attach, NULL, NULL);
64
65 static int
a1k2cp_match(device_t parent,cfdata_t cf,void * aux)66 a1k2cp_match(device_t parent, cfdata_t cf, void *aux)
67 {
68
69 static int a1k2cp_matched = 0;
70
71 if (!matchname("a1k2cp", aux))
72 return 0;
73
74 if (a1k2cp_matched)
75 return 0;
76
77 if (!is_a1200())
78 return 0;
79
80 a1k2cp_matched = 1;
81 return 1;
82 }
83
84 static void
a1k2cp_attach(device_t parent,device_t self,void * aux)85 a1k2cp_attach(device_t parent, device_t self, void *aux)
86 {
87 struct a1k2cp_softc *sc;
88 struct clockportbus_attach_args a1k2cp_aa;
89 struct bus_space_tag a1k2cp_bst;
90
91 sc = device_private(self);
92 sc->sc_dev = self;
93
94 aprint_normal(": A1200 on-board clockport\n");
95
96 a1k2cp_bst.base = (bus_addr_t) __UNVOLATILE(ztwomap(A1K2CP_BASE));
97 a1k2cp_bst.absm = &amiga_bus_stride_4;
98
99 a1k2cp_aa.cp_iot = &a1k2cp_bst;
100 a1k2cp_aa.cp_intr_establish = clockport_generic_intr_establish;
101
102 #ifdef A1K2CP_DEBUG
103 aprint_normal_dev(sc->sc_dev, "pa %x va %p\n",
104 A1K2CP_BASE, (void*) a1k2cp_bst.base);
105 #endif /* A1K2CP_DEBUG */
106
107 config_found(sc->sc_dev, &a1k2cp_aa, 0, CFARGS_NONE);
108 }
109