You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
2.1 KiB
59 lines
2.1 KiB
10 years ago
|
/*
|
||
|
|
* Copyright (c) 2015, 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 __SP805_H__
|
||
|
|
#define __SP805_H__
|
||
|
|
|
||
|
|
/* SP805 register offset */
|
||
|
|
#define SP805_WDOG_LOAD_OFF 0x000
|
||
|
|
#define SP805_WDOG_CTR_OFF 0x008
|
||
|
|
#define SP805_WDOG_LOCK_OFF 0xc00
|
||
|
|
|
||
|
|
/* Magic word to unlock the wd registers */
|
||
|
|
#define WDOG_UNLOCK_KEY 0x1ACCE551
|
||
|
|
|
||
|
|
/* Register field definitions */
|
||
|
|
#define SP805_CTR_RESEN (1 << 1)
|
||
|
|
#define SP805_CTR_INTEN (1 << 0)
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
/* Public high level API */
|
||
|
|
|
||
|
|
void sp805_start(uintptr_t base, unsigned long ticks);
|
||
|
|
void sp805_stop(uintptr_t base);
|
||
|
|
void sp805_refresh(uintptr_t base, unsigned long ticks);
|
||
|
|
|
||
|
|
#endif /* __ASSEMBLY__ */
|
||
|
|
|
||
|
|
#endif /* __SP805_H__ */
|