1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu */ 6*91f16700Schasinglulu 7*91f16700Schasinglulu #ifndef SP805_H 8*91f16700Schasinglulu #define SP805_H 9*91f16700Schasinglulu 10*91f16700Schasinglulu #include <lib/utils_def.h> 11*91f16700Schasinglulu 12*91f16700Schasinglulu /* SP805 register offset */ 13*91f16700Schasinglulu #define SP805_WDOG_LOAD_OFF UL(0x000) 14*91f16700Schasinglulu #define SP805_WDOG_CTR_OFF UL(0x008) 15*91f16700Schasinglulu #define SP805_WDOG_LOCK_OFF UL(0xc00) 16*91f16700Schasinglulu 17*91f16700Schasinglulu /* Magic word to unlock the wd registers */ 18*91f16700Schasinglulu #define WDOG_UNLOCK_KEY U(0x1ACCE551) 19*91f16700Schasinglulu 20*91f16700Schasinglulu /* Register field definitions */ 21*91f16700Schasinglulu #define SP805_CTR_RESEN (U(1) << 1) 22*91f16700Schasinglulu #define SP805_CTR_INTEN (U(1) << 0) 23*91f16700Schasinglulu 24*91f16700Schasinglulu #ifndef __ASSEMBLER__ 25*91f16700Schasinglulu 26*91f16700Schasinglulu #include <stdint.h> 27*91f16700Schasinglulu 28*91f16700Schasinglulu /* Public high level API */ 29*91f16700Schasinglulu 30*91f16700Schasinglulu void sp805_start(uintptr_t base, unsigned int ticks); 31*91f16700Schasinglulu void sp805_stop(uintptr_t base); 32*91f16700Schasinglulu void sp805_refresh(uintptr_t base, unsigned int ticks); 33*91f16700Schasinglulu 34*91f16700Schasinglulu #endif /* __ASSEMBLER__ */ 35*91f16700Schasinglulu 36*91f16700Schasinglulu #endif /* SP805_H */ 37