1012771d8Swdenk /* 2012771d8Swdenk * (C) Copyright 2001 3012771d8Swdenk * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. 4012771d8Swdenk * 5012771d8Swdenk * See file CREDITS for list of people who contributed to this 6012771d8Swdenk * project. 7012771d8Swdenk * 8012771d8Swdenk * This program is free software; you can redistribute it and/or 9012771d8Swdenk * modify it under the terms of the GNU General Public License as 10012771d8Swdenk * published by the Free Software Foundation; either version 2 of 11012771d8Swdenk * the License, or (at your option) any later version. 12012771d8Swdenk * 13012771d8Swdenk * This program is distributed in the hope that it will be useful, 14012771d8Swdenk * but WITHOUT ANY WARRANTY; without even the implied warranty of 15012771d8Swdenk * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16012771d8Swdenk * GNU General Public License for more details. 17012771d8Swdenk * 18012771d8Swdenk * You should have received a copy of the GNU General Public License 19012771d8Swdenk * along with this program; if not, write to the Free Software 20012771d8Swdenk * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21012771d8Swdenk * MA 02111-1307 USA 22012771d8Swdenk */ 23012771d8Swdenk 24012771d8Swdenk /* 25012771d8Swdenk * Watchdog functions and macros. 26012771d8Swdenk */ 27012771d8Swdenk #ifndef _WATCHDOG_H_ 28012771d8Swdenk #define _WATCHDOG_H_ 29012771d8Swdenk 30012771d8Swdenk #if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG) 31012771d8Swdenk # error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together." 32012771d8Swdenk #endif 33012771d8Swdenk 34012771d8Swdenk /* 35012771d8Swdenk * Hardware watchdog 36012771d8Swdenk */ 37012771d8Swdenk #ifdef CONFIG_HW_WATCHDOG 38012771d8Swdenk #if defined(__ASSEMBLY__) 39012771d8Swdenk #define WATCHDOG_RESET bl hw_watchdog_reset 40012771d8Swdenk #else 41012771d8Swdenk extern void hw_watchdog_reset(void); 42012771d8Swdenk 43012771d8Swdenk #define WATCHDOG_RESET hw_watchdog_reset 44012771d8Swdenk #endif /* __ASSEMBLY__ */ 45012771d8Swdenk #else 46012771d8Swdenk /* 47012771d8Swdenk * Maybe a software watchdog? 48012771d8Swdenk */ 49012771d8Swdenk #if defined(CONFIG_WATCHDOG) 50012771d8Swdenk #if defined(__ASSEMBLY__) 51012771d8Swdenk #define WATCHDOG_RESET bl watchdog_reset 52012771d8Swdenk #else 53012771d8Swdenk extern void watchdog_reset(void); 54012771d8Swdenk 55012771d8Swdenk #define WATCHDOG_RESET watchdog_reset 56012771d8Swdenk #endif 57012771d8Swdenk #else 58012771d8Swdenk /* 59012771d8Swdenk * No hardware or software watchdog. 60012771d8Swdenk */ 61012771d8Swdenk #if defined(__ASSEMBLY__) 62012771d8Swdenk #define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/ 63012771d8Swdenk #else 64012771d8Swdenk #define WATCHDOG_RESET() {} 65012771d8Swdenk #endif /* __ASSEMBLY__ */ 66012771d8Swdenk #endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */ 67012771d8Swdenk #endif /* CONFIG_HW_WATCHDOG */ 68012771d8Swdenk 69012771d8Swdenk /* 70012771d8Swdenk * Prototypes from $(CPU)/cpu.c. 71012771d8Swdenk */ 72012771d8Swdenk 73012771d8Swdenk /* MPC 8xx */ 74012771d8Swdenk #if (defined(CONFIG_8xx) || defined(CONFIG_MPC860)) && !defined(__ASSEMBLY__) 75012771d8Swdenk void reset_8xx_watchdog(volatile immap_t *immr); 76012771d8Swdenk #endif 77012771d8Swdenk 78*0db5bca8Swdenk /* MPC 5xx */ 79*0db5bca8Swdenk #if defined(CONFIG_5xx) && !defined(__ASSEMBLY__) 80*0db5bca8Swdenk void reset_5xx_watchdog(volatile immap_t *immr); 81*0db5bca8Swdenk #endif 82*0db5bca8Swdenk 83012771d8Swdenk /* IBM 4xx */ 84012771d8Swdenk #if defined(CONFIG_4xx) && !defined(__ASSEMBLY__) 85012771d8Swdenk void reset_4xx_watchdog(void); 86012771d8Swdenk #endif 87012771d8Swdenk 88012771d8Swdenk /* MPC 8260 */ 89012771d8Swdenk #if defined(CONFIG_MPC8260) && !defined(__ASSEMBLY__) 90012771d8Swdenk #if defined(CONFIG_WATCHDOG) 91012771d8Swdenk extern __inline__ void 92012771d8Swdenk reset_8260_watchdog(volatile immap_t *immr) 93012771d8Swdenk { 94012771d8Swdenk immr->im_siu_conf.sc_swsr = 0x556c; 95012771d8Swdenk immr->im_siu_conf.sc_swsr = 0xaa39; 96012771d8Swdenk } 97012771d8Swdenk #endif /* !__ASSEMBLY__ && CONFIG_WATCHDOG */ 98012771d8Swdenk #endif /* CONFIG_MPC8260 && !__ASSEMBLY__ */ 99012771d8Swdenk 100012771d8Swdenk #endif /* _WATCHDOG_H_ */ 101012771d8Swdenk 102