diff options
author | wdenk <wdenk> | 2002-03-08 21:31:05 +0000 |
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committer | wdenk <wdenk> | 2002-03-08 21:31:05 +0000 |
commit | 012771d88adfb5e0886591880041f05fc8b15bdd (patch) | |
tree | 9cd947b8b4c6f05cff5be1b69a0f1ca81b2c86ec /include/watchdog.h | |
parent | 67fc21f34ef642417e7418a0575d5b5ff70d77d8 (diff) |
Initial revision
Diffstat (limited to 'include/watchdog.h')
-rw-r--r-- | include/watchdog.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/include/watchdog.h b/include/watchdog.h new file mode 100644 index 00000000000..6a64409e5e2 --- /dev/null +++ b/include/watchdog.h @@ -0,0 +1,96 @@ +/* + * (C) Copyright 2001 + * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * Watchdog functions and macros. + */ +#ifndef _WATCHDOG_H_ +#define _WATCHDOG_H_ + +#if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG) +# error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together." +#endif + +/* + * Hardware watchdog + */ +#ifdef CONFIG_HW_WATCHDOG + #if defined(__ASSEMBLY__) + #define WATCHDOG_RESET bl hw_watchdog_reset + #else + extern void hw_watchdog_reset(void); + + #define WATCHDOG_RESET hw_watchdog_reset + #endif /* __ASSEMBLY__ */ +#else + /* + * Maybe a software watchdog? + */ + #if defined(CONFIG_WATCHDOG) + #if defined(__ASSEMBLY__) + #define WATCHDOG_RESET bl watchdog_reset + #else + extern void watchdog_reset(void); + + #define WATCHDOG_RESET watchdog_reset + #endif + #else + /* + * No hardware or software watchdog. + */ + #if defined(__ASSEMBLY__) + #define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/ + #else + #define WATCHDOG_RESET() {} + #endif /* __ASSEMBLY__ */ + #endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */ +#endif /* CONFIG_HW_WATCHDOG */ + +/* + * Prototypes from $(CPU)/cpu.c. + */ + +/* MPC 8xx */ +#if (defined(CONFIG_8xx) || defined(CONFIG_MPC860)) && !defined(__ASSEMBLY__) + void reset_8xx_watchdog(volatile immap_t *immr); +#endif + +/* IBM 4xx */ +#if defined(CONFIG_4xx) && !defined(__ASSEMBLY__) + void reset_4xx_watchdog(void); +#endif + +/* MPC 8260 */ +#if defined(CONFIG_MPC8260) && !defined(__ASSEMBLY__) +#if defined(CONFIG_WATCHDOG) +extern __inline__ void +reset_8260_watchdog(volatile immap_t *immr) +{ + immr->im_siu_conf.sc_swsr = 0x556c; + immr->im_siu_conf.sc_swsr = 0xaa39; +} +#endif /* !__ASSEMBLY__ && CONFIG_WATCHDOG */ +#endif /* CONFIG_MPC8260 && !__ASSEMBLY__ */ + +#endif /* _WATCHDOG_H_ */ + |