1 /* 2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef __SP805_H__ 8 #define __SP805_H__ 9 10 /* SP805 register offset */ 11 #define SP805_WDOG_LOAD_OFF 0x000 12 #define SP805_WDOG_CTR_OFF 0x008 13 #define SP805_WDOG_LOCK_OFF 0xc00 14 15 /* Magic word to unlock the wd registers */ 16 #define WDOG_UNLOCK_KEY 0x1ACCE551 17 18 /* Register field definitions */ 19 #define SP805_CTR_RESEN (1 << 1) 20 #define SP805_CTR_INTEN (1 << 0) 21 22 #ifndef __ASSEMBLY__ 23 24 #include <stdint.h> 25 26 /* Public high level API */ 27 28 void sp805_start(uintptr_t base, unsigned long ticks); 29 void sp805_stop(uintptr_t base); 30 void sp805_refresh(uintptr_t base, unsigned long ticks); 31 32 #endif /* __ASSEMBLY__ */ 33 34 #endif /* __SP805_H__ */ 35
