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/*
* (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_ */
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