| /* |
| * 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__ */ |