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[FreeBSD/FreeBSD.git] / sys / arm / versatile / bus_space.c
1 /*-
2  * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
3  * All rights reserved.
4  *
5  * Developed by Semihalf.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of MARVELL nor the names of contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/bus.h>
38 #include <sys/kernel.h>
39 #include <sys/malloc.h>
40
41 #include <machine/bus.h>
42
43 /* Prototypes for all the bus_space structure functions */
44 bs_protos(generic);
45 bs_protos(generic_armv4);
46
47 struct bus_space _base_tag = {
48         /* cookie */
49         .bs_cookie      = (void *) 0,
50         
51         /* mapping/unmapping */
52         .bs_map         = generic_bs_map,
53         .bs_unmap       = generic_bs_unmap,
54         .bs_subregion   = generic_bs_subregion,
55         
56         /* allocation/deallocation */
57         .bs_alloc       = generic_bs_alloc,
58         .bs_free        = generic_bs_free,
59         
60         /* barrier */
61         .bs_barrier     = generic_bs_barrier,
62         
63         /* read (single) */
64         .bs_r_1         = generic_bs_r_1,
65         .bs_r_2         = generic_armv4_bs_r_2,
66         .bs_r_4         = generic_bs_r_4,
67         .bs_r_8         = NULL,
68         
69         /* read multiple */
70         .bs_rm_1        = generic_bs_rm_1,
71         .bs_rm_2        = generic_armv4_bs_rm_2,
72         .bs_rm_4        = generic_bs_rm_4,
73         .bs_rm_8        = NULL,
74         
75         /* read region */
76         .bs_rr_1        = generic_bs_rr_1,
77         .bs_rr_2        = generic_armv4_bs_rr_2,
78         .bs_rr_4        = generic_bs_rr_4,
79         .bs_rr_8        = NULL,
80         
81         /* write (single) */
82         .bs_w_1         = generic_bs_w_1,
83         .bs_w_2         = generic_armv4_bs_w_2,
84         .bs_w_4         = generic_bs_w_4,
85         .bs_w_8         = NULL,
86         
87         /* write multiple */
88         .bs_wm_1        = generic_bs_wm_1,
89         .bs_wm_2        = generic_armv4_bs_wm_2,
90         .bs_wm_4        = generic_bs_wm_4,
91         .bs_wm_8        = NULL,
92         
93         /* write region */
94         .bs_wr_1        = generic_bs_wr_1,
95         .bs_wr_2        = generic_armv4_bs_wr_2,
96         .bs_wr_4        = generic_bs_wr_4,
97         .bs_wr_8        = NULL,
98         
99         /* set multiple */
100         /* XXX not implemented */
101         
102         /* set region */
103         .bs_sr_1        = NULL,
104         .bs_sr_2        = generic_armv4_bs_sr_2,
105         .bs_sr_4        = generic_bs_sr_4,
106         .bs_sr_8        = NULL,
107         
108         /* copy */
109         .bs_c_1         = NULL,
110         .bs_c_2         = generic_armv4_bs_c_2,
111         .bs_c_4         = NULL,
112         .bs_c_8         = NULL,
113 };
114
115 bus_space_tag_t fdtbus_bs_tag = &_base_tag;