1*38041973SJuan Castillo /* 2*38041973SJuan Castillo * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3*38041973SJuan Castillo * 4*38041973SJuan Castillo * Redistribution and use in source and binary forms, with or without 5*38041973SJuan Castillo * modification, are permitted provided that the following conditions are met: 6*38041973SJuan Castillo * 7*38041973SJuan Castillo * Redistributions of source code must retain the above copyright notice, this 8*38041973SJuan Castillo * list of conditions and the following disclaimer. 9*38041973SJuan Castillo * 10*38041973SJuan Castillo * Redistributions in binary form must reproduce the above copyright notice, 11*38041973SJuan Castillo * this list of conditions and the following disclaimer in the documentation 12*38041973SJuan Castillo * and/or other materials provided with the distribution. 13*38041973SJuan Castillo * 14*38041973SJuan Castillo * Neither the name of ARM nor the names of its contributors may be used 15*38041973SJuan Castillo * to endorse or promote products derived from this software without specific 16*38041973SJuan Castillo * prior written permission. 17*38041973SJuan Castillo * 18*38041973SJuan Castillo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19*38041973SJuan Castillo * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20*38041973SJuan Castillo * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21*38041973SJuan Castillo * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22*38041973SJuan Castillo * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23*38041973SJuan Castillo * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24*38041973SJuan Castillo * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25*38041973SJuan Castillo * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26*38041973SJuan Castillo * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27*38041973SJuan Castillo * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28*38041973SJuan Castillo * POSSIBILITY OF SUCH DAMAGE. 29*38041973SJuan Castillo */ 30*38041973SJuan Castillo 31*38041973SJuan Castillo #ifndef __SP805_H__ 32*38041973SJuan Castillo #define __SP805_H__ 33*38041973SJuan Castillo 34*38041973SJuan Castillo /* SP805 register offset */ 35*38041973SJuan Castillo #define SP805_WDOG_LOAD_OFF 0x000 36*38041973SJuan Castillo #define SP805_WDOG_CTR_OFF 0x008 37*38041973SJuan Castillo #define SP805_WDOG_LOCK_OFF 0xc00 38*38041973SJuan Castillo 39*38041973SJuan Castillo /* Magic word to unlock the wd registers */ 40*38041973SJuan Castillo #define WDOG_UNLOCK_KEY 0x1ACCE551 41*38041973SJuan Castillo 42*38041973SJuan Castillo /* Register field definitions */ 43*38041973SJuan Castillo #define SP805_CTR_RESEN (1 << 1) 44*38041973SJuan Castillo #define SP805_CTR_INTEN (1 << 0) 45*38041973SJuan Castillo 46*38041973SJuan Castillo #ifndef __ASSEMBLY__ 47*38041973SJuan Castillo 48*38041973SJuan Castillo #include <stdint.h> 49*38041973SJuan Castillo 50*38041973SJuan Castillo /* Public high level API */ 51*38041973SJuan Castillo 52*38041973SJuan Castillo void sp805_start(uintptr_t base, unsigned long ticks); 53*38041973SJuan Castillo void sp805_stop(uintptr_t base); 54*38041973SJuan Castillo void sp805_refresh(uintptr_t base, unsigned long ticks); 55*38041973SJuan Castillo 56*38041973SJuan Castillo #endif /* __ASSEMBLY__ */ 57*38041973SJuan Castillo 58*38041973SJuan Castillo #endif /* __SP805_H__ */ 59