u-boot/include/watchdog.h
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

81 lines
1.9 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2001
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
*/
/*
* 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_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.
*/
#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_ */