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1 /*-
2  * Copyright (c) 2012 Damjan Marion <damjan.marion@gmail.com>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/bus.h>
33 #include <sys/kernel.h>
34 #include <sys/malloc.h>
35
36 #include <machine/bus.h>
37
38 /* Prototypes for all the bus_space structure functions */
39 bs_protos(generic);
40 bs_protos(generic_armv4);
41
42 /*
43  * The bus space tag.  This is constant for all instances, so
44  * we never have to explicitly "create" it.
45  */
46 static struct bus_space _base_tag = {
47         /* cookie */
48         (void *) 0,
49
50         /* mapping/unmapping */
51         generic_bs_map,
52         generic_bs_unmap,
53         generic_bs_subregion,
54
55         /* allocation/deallocation */
56         generic_bs_alloc,
57         generic_bs_free,
58
59         /* barrier */
60         generic_bs_barrier,
61
62         /* read (single) */
63         generic_bs_r_1,
64         generic_armv4_bs_r_2,
65         generic_bs_r_4,
66         NULL,
67
68         /* read multiple */
69         generic_bs_rm_1,
70         generic_armv4_bs_rm_2,
71         generic_bs_rm_4,
72         NULL,
73
74         /* read region */
75         generic_bs_rr_1,
76         generic_armv4_bs_rr_2,
77         generic_bs_rr_4,
78         NULL,
79
80         /* write (single) */
81         generic_bs_w_1,
82         generic_armv4_bs_w_2,
83         generic_bs_w_4,
84         NULL,
85
86         /* write multiple */
87         generic_bs_wm_1,
88         generic_armv4_bs_wm_2,
89         generic_bs_wm_4,
90         NULL,
91
92         /* write region */
93         NULL,
94         NULL,
95         NULL,
96         NULL,
97
98         /* set multiple */
99         NULL,
100         NULL,
101         NULL,
102         NULL,
103
104         /* set region */
105         NULL,
106         NULL,
107         NULL,
108         NULL,
109
110         /* copy */
111         NULL,
112         NULL,
113         NULL,
114         NULL,
115
116         /* read stream (single) */
117         NULL,
118         NULL,
119         NULL,
120         NULL,
121
122         /* read multiple stream */
123         NULL,
124         generic_armv4_bs_rm_2,          /* bus_space_read_multi_stream_2 */
125         NULL,
126         NULL,
127
128         /* read region stream */
129         NULL,
130         NULL,
131         NULL,
132         NULL,
133
134         /* write stream (single) */
135         NULL,
136         NULL,
137         NULL,
138         NULL,
139
140         /* write multiple stream */
141         NULL,
142         generic_armv4_bs_wm_2,          /* bus_space_write_multi_stream_2 */
143         NULL,
144         NULL,
145
146         /* write region stream */
147         NULL,
148         NULL,
149         NULL,
150         NULL
151 };
152
153 bus_space_tag_t fdtbus_bs_tag = &_base_tag;