u-boot/include/watchdog.h
Sonic Zhang d54d7eb965 support blackfin board initialization in generic board_f
- init hardware watchdog if applicable
- use CONFIG_SYS_MONITOR_LEN as the gd monitor len for Blackfin
- reserve u-boot memory at the top field of the RAM for Blackfin
- avoid refer to CONFIG_SYS_MONITOR_LEN, which is not defined by Blackfin

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
2014-08-07 15:15:19 +08:00

104 lines
2.4 KiB
C

/*
* (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
#if defined(CONFIG_SYS_GENERIC_BOARD) && \
(defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_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
#if defined(CONFIG_MPC85xx) && !defined(__ASSEMBLY__)
void init_85xx_watchdog(void);
#endif
#endif /* _WATCHDOG_H_ */