blob: 1350609aaaa9824d1d893163623506d7bd952de6 [file] [log] [blame]
Achin Gupta4f6ad662013-10-25 09:08:21 +01001/*
Dan Handleye83b0ca2014-01-14 18:17:09 +00002 * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
Achin Gupta4f6ad662013-10-25 09:08:21 +01003 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 *
10 * Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 *
14 * Neither the name of ARM nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific
16 * prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include <stdint.h>
32
Harry Liebelafd1ec72014-04-01 19:19:22 +010033void mmio_write_8(uintptr_t addr, uint8_t value)
34{
35 *(volatile uint8_t*)addr = value;
36}
37
38uint8_t mmio_read_8(uintptr_t addr)
39{
40 return *(volatile uint8_t*)addr;
41}
42
Achin Gupta4f6ad662013-10-25 09:08:21 +010043void mmio_write_32(uintptr_t addr, uint32_t value)
44{
45 *(volatile uint32_t*)addr = value;
46}
47
Harry Liebeleaec5902013-12-12 13:00:29 +000048uint32_t mmio_read_32(uintptr_t addr)
Achin Gupta4f6ad662013-10-25 09:08:21 +010049{
50 return *(volatile uint32_t*)addr;
51}
Harry Liebeleaec5902013-12-12 13:00:29 +000052
53void mmio_write_64(uintptr_t addr, uint64_t value)
54{
55 *(volatile uint64_t*)addr = value;
56}
57
58uint64_t mmio_read_64(uintptr_t addr)
59{
60 return *(volatile uint64_t*)addr;
61}