1 /* 2 * (C) Copyright 2001 3 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 /* 25 * Watchdog functions and macros. 26 */ 27 #ifndef _WATCHDOG_H_ 28 #define _WATCHDOG_H_ 29 30 #if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG) 31 # error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together." 32 #endif 33 34 /* 35 * Hardware watchdog 36 */ 37 #ifdef CONFIG_HW_WATCHDOG 38 void hw_watchdog_init(void); 39 #if defined(__ASSEMBLY__) 40 #define WATCHDOG_RESET bl hw_watchdog_reset 41 #else 42 extern void hw_watchdog_reset(void); 43 44 #define WATCHDOG_RESET hw_watchdog_reset 45 #endif /* __ASSEMBLY__ */ 46 #else 47 /* 48 * Maybe a software watchdog? 49 */ 50 #if defined(CONFIG_WATCHDOG) 51 #if defined(__ASSEMBLY__) 52 #define WATCHDOG_RESET bl watchdog_reset 53 #else 54 extern void watchdog_reset(void); 55 56 #define WATCHDOG_RESET watchdog_reset 57 #endif 58 #else 59 /* 60 * No hardware or software watchdog. 61 */ 62 #if defined(__ASSEMBLY__) 63 #define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/ 64 #else 65 #define WATCHDOG_RESET() {} 66 #endif /* __ASSEMBLY__ */ 67 #endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */ 68 #endif /* CONFIG_HW_WATCHDOG */ 69 70 /* 71 * Prototypes from $(CPU)/cpu.c. 72 */ 73 74 /* MPC 8xx */ 75 #if (defined(CONFIG_8xx) || defined(CONFIG_MPC860)) && !defined(__ASSEMBLY__) 76 void reset_8xx_watchdog(volatile immap_t *immr); 77 #endif 78 79 /* MPC 5xx */ 80 #if defined(CONFIG_5xx) && !defined(__ASSEMBLY__) 81 void reset_5xx_watchdog(volatile immap_t *immr); 82 #endif 83 84 /* MPC 5xxx */ 85 #if defined(CONFIG_MPC5xxx) && !defined(__ASSEMBLY__) 86 void reset_5xxx_watchdog(void); 87 #endif 88 89 /* AMCC 4xx */ 90 #if defined(CONFIG_4xx) && !defined(__ASSEMBLY__) 91 void reset_4xx_watchdog(void); 92 #endif 93 94 #endif /* _WATCHDOG_H_ */ 95