|
|
|
|
/*
|
|
|
|
|
* (C) Copyright 2001
|
|
|
|
|
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
|
|
|
|
|
*
|
|
|
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Watchdog functions and macros.
|
|
|
|
|
*/
|
|
|
|
|
#ifndef _WATCHDOG_H_
|
|
|
|
|
#define _WATCHDOG_H_
|
|
|
|
|
|
|
|
|
|
#if !defined(__ASSEMBLY__)
|
|
|
|
|
/*
|
|
|
|
|
* Reset the watchdog timer, always returns 0
|
|
|
|
|
*
|
|
|
|
|
* This function is here since it is shared between board_f() and board_r(),
|
|
|
|
|
* and the legacy arch/<arch>/board.c code.
|
|
|
|
|
*/
|
|
|
|
|
int init_func_watchdog_reset(void);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_WATCHDOG
|
|
|
|
|
#define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
|
|
|
|
|
#define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
|
|
|
|
|
#else
|
|
|
|
|
#define INIT_FUNC_WATCHDOG_INIT
|
|
|
|
|
#define INIT_FUNC_WATCHDOG_RESET
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#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
|
|
|
|
|
|
|
|
|
|
/* MPC 5xx */
|
|
|
|
|
#if defined(CONFIG_5xx) && !defined(__ASSEMBLY__)
|
|
|
|
|
void reset_5xx_watchdog(volatile immap_t *immr);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* MPC 5xxx */
|
|
|
|
|
#if defined(CONFIG_MPC5xxx) && !defined(__ASSEMBLY__)
|
|
|
|
|
void reset_5xxx_watchdog(void);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* AMCC 4xx */
|
|
|
|
|
#if defined(CONFIG_4xx) && !defined(__ASSEMBLY__)
|
|
|
|
|
void reset_4xx_watchdog(void);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if defined(CONFIG_HW_WATCHDOG) && !defined(__ASSEMBLY__)
|
|
|
|
|
void hw_watchdog_init(void);
|
|
|
|
|
#endif
|
|
|
|
|
#endif /* _WATCHDOG_H_ */
|
