2 * Copyright (c) 2014 Andrew Turner
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
30 #include "opt_platform.h"
32 #include <sys/param.h>
33 __FBSDID("$FreeBSD$");
38 #include <machine/bus.h>
40 uint8_t generic_bs_r_1(void *, bus_space_handle_t, bus_size_t);
41 uint16_t generic_bs_r_2(void *, bus_space_handle_t, bus_size_t);
42 uint32_t generic_bs_r_4(void *, bus_space_handle_t, bus_size_t);
43 uint64_t generic_bs_r_8(void *, bus_space_handle_t, bus_size_t);
45 void generic_bs_rm_1(void *, bus_space_handle_t, bus_size_t, uint8_t *,
47 void generic_bs_rm_2(void *, bus_space_handle_t, bus_size_t, uint16_t *,
49 void generic_bs_rm_4(void *, bus_space_handle_t, bus_size_t, uint32_t *,
51 void generic_bs_rm_8(void *, bus_space_handle_t, bus_size_t, uint64_t *,
54 void generic_bs_rr_1(void *, bus_space_handle_t, bus_size_t, uint8_t *,
56 void generic_bs_rr_2(void *, bus_space_handle_t, bus_size_t, uint16_t *,
58 void generic_bs_rr_4(void *, bus_space_handle_t, bus_size_t, uint32_t *,
60 void generic_bs_rr_8(void *, bus_space_handle_t, bus_size_t, uint64_t *,
63 void generic_bs_w_1(void *, bus_space_handle_t, bus_size_t, uint8_t);
64 void generic_bs_w_2(void *, bus_space_handle_t, bus_size_t, uint16_t);
65 void generic_bs_w_4(void *, bus_space_handle_t, bus_size_t, uint32_t);
66 void generic_bs_w_8(void *, bus_space_handle_t, bus_size_t, uint64_t);
68 void generic_bs_wm_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *,
70 void generic_bs_wm_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *,
72 void generic_bs_wm_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *,
74 void generic_bs_wm_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *,
77 void generic_bs_wr_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *,
79 void generic_bs_wr_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *,
81 void generic_bs_wr_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *,
83 void generic_bs_wr_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *,
87 generic_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags,
88 bus_space_handle_t *bshp)
92 va = pmap_mapdev(bpa, size);
95 *bshp = (bus_space_handle_t)va;
100 generic_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size)
103 pmap_unmapdev(bsh, size);
107 generic_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset,
108 bus_size_t size, int flags)
113 generic_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset,
114 bus_size_t size, bus_space_handle_t *nbshp)
117 *nbshp = bsh + offset;
121 struct bus_space memmap_bus = {
125 /* mapping/unmapping */
126 .bs_map = generic_bs_map,
127 .bs_unmap = generic_bs_unmap,
128 .bs_subregion = generic_bs_subregion,
130 /* allocation/deallocation */
135 .bs_barrier = generic_bs_barrier,
138 .bs_r_1 = generic_bs_r_1,
139 .bs_r_2 = generic_bs_r_2,
140 .bs_r_4 = generic_bs_r_4,
141 .bs_r_8 = generic_bs_r_8,
144 .bs_rm_1 = generic_bs_rm_1,
145 .bs_rm_2 = generic_bs_rm_2,
146 .bs_rm_4 = generic_bs_rm_4,
147 .bs_rm_8 = generic_bs_rm_8,
150 .bs_rr_1 = generic_bs_rr_1,
151 .bs_rr_2 = generic_bs_rr_2,
152 .bs_rr_4 = generic_bs_rr_4,
153 .bs_rr_8 = generic_bs_rr_8,
156 .bs_w_1 = generic_bs_w_1,
157 .bs_w_2 = generic_bs_w_2,
158 .bs_w_4 = generic_bs_w_4,
159 .bs_w_8 = generic_bs_w_8,
162 .bs_wm_1 = generic_bs_wm_1,
163 .bs_wm_2 = generic_bs_wm_2,
164 .bs_wm_4 = generic_bs_wm_4,
165 .bs_wm_8 = generic_bs_wm_8,
168 .bs_wr_1 = generic_bs_wr_1,
169 .bs_wr_2 = generic_bs_wr_2,
170 .bs_wr_4 = generic_bs_wr_4,
171 .bs_wr_8 = generic_bs_wr_8,
191 /* read single stream */
197 /* read multiple stream */
198 .bs_rm_1_s = generic_bs_rm_1,
199 .bs_rm_2_s = generic_bs_rm_2,
200 .bs_rm_4_s = generic_bs_rm_4,
201 .bs_rm_8_s = generic_bs_rm_8,
203 /* read region stream */
209 /* write single stream */
215 /* write multiple stream */
216 .bs_wm_1_s = generic_bs_wm_1,
217 .bs_wm_2_s = generic_bs_wm_2,
218 .bs_wm_4_s = generic_bs_wm_4,
219 .bs_wm_8_s = generic_bs_wm_8,
221 /* write region stream */
229 bus_space_tag_t fdtbus_bs_tag = &memmap_bus;