Blame view

include/watchdog.h 2.08 KB
83d290c56   Tom Rini   SPDX: Convert all...
1
  /* SPDX-License-Identifier: GPL-2.0+ */
012771d88   wdenk   Initial revision
2
3
4
  /*
   * (C) Copyright 2001
   * Erik Theisen,  Wave 7 Optics, etheisen@mindspring.com.
012771d88   wdenk   Initial revision
5
6
7
8
9
10
11
   */
  
  /*
   * Watchdog functions and macros.
   */
  #ifndef _WATCHDOG_H_
  #define _WATCHDOG_H_
a6741bce5   Simon Glass   Declare watchdog ...
12
13
14
15
16
17
18
19
20
  #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
9be2e790e   Simon Glass   Drop use of CONFI...
21
  #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
a6741bce5   Simon Glass   Declare watchdog ...
22
23
24
25
26
27
  #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
012771d88   wdenk   Initial revision
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
  #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
7fbd42f5a   Stefan Roese   watchdog: Handle ...
51
52
53
54
55
56
  			/* Don't require the watchdog to be enabled in SPL */
  			#if defined(CONFIG_SPL_BUILD) &&		\
  				!defined(CONFIG_SPL_WATCHDOG_SUPPORT)
  				#define WATCHDOG_RESET() {}
  			#else
  				extern void watchdog_reset(void);
012771d88   wdenk   Initial revision
57

7fbd42f5a   Stefan Roese   watchdog: Handle ...
58
59
  				#define WATCHDOG_RESET watchdog_reset
  			#endif
012771d88   wdenk   Initial revision
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
  		#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.
   */
6912f2a8a   Suniel Mahesh   watchdog: omap_wd...
76
  #if (defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)) && !defined(__ASSEMBLY__)
a6720762c   Tom Rini   watchdog.h: Move ...
77
78
  	void hw_watchdog_init(void);
  #endif
0f8062b25   Boschung, Rainer   mpc85xx: watchdog...
79
80
81
82
  
  #if defined(CONFIG_MPC85xx) && !defined(__ASSEMBLY__)
  	void init_85xx_watchdog(void);
  #endif
012771d88   wdenk   Initial revision
83
  #endif /* _WATCHDOG_H_ */