blob: 19f798f46488ed43b1ecba65bebd5b7d6be8a6f6 [file] [log] [blame]
/*
* Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __MMIO_H__
#define __MMIO_H__
#include <stdint.h>
static inline void mmio_write_8(uintptr_t addr, uint8_t value)
{
*(volatile uint8_t*)addr = value;
}
static inline uint8_t mmio_read_8(uintptr_t addr)
{
return *(volatile uint8_t*)addr;
}
static inline void mmio_write_16(uintptr_t addr, uint16_t value)
{
*(volatile uint16_t*)addr = value;
}
static inline uint16_t mmio_read_16(uintptr_t addr)
{
return *(volatile uint16_t*)addr;
}
static inline void mmio_write_32(uintptr_t addr, uint32_t value)
{
*(volatile uint32_t*)addr = value;
}
static inline uint32_t mmio_read_32(uintptr_t addr)
{
return *(volatile uint32_t*)addr;
}
static inline void mmio_write_64(uintptr_t addr, uint64_t value)
{
*(volatile uint64_t*)addr = value;
}
static inline uint64_t mmio_read_64(uintptr_t addr)
{
return *(volatile uint64_t*)addr;
}
static inline void mmio_clrbits_32(uintptr_t addr, uint32_t clear)
{
mmio_write_32(addr, mmio_read_32(addr) & ~clear);
}
static inline void mmio_setbits_32(uintptr_t addr, uint32_t set)
{
mmio_write_32(addr, mmio_read_32(addr) | set);
}
static inline void mmio_clrsetbits_32(uintptr_t addr,
uint32_t clear,
uint32_t set)
{
mmio_write_32(addr, (mmio_read_32(addr) & ~clear) | set);
}
#endif /* __MMIO_H__ */