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Commit | Line | Data |
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012771d8 WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. | |
4 | * | |
3765b3e7 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
012771d8 WD |
6 | */ |
7 | ||
8 | /* | |
9 | * Watchdog functions and macros. | |
10 | */ | |
11 | #ifndef _WATCHDOG_H_ | |
12 | #define _WATCHDOG_H_ | |
13 | ||
a6741bce SG |
14 | #if !defined(__ASSEMBLY__) |
15 | /* | |
16 | * Reset the watchdog timer, always returns 0 | |
17 | * | |
18 | * This function is here since it is shared between board_f() and board_r(), | |
19 | * and the legacy arch/<arch>/board.c code. | |
20 | */ | |
21 | int init_func_watchdog_reset(void); | |
22 | #endif | |
23 | ||
9be2e790 | 24 | #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG) |
a6741bce SG |
25 | #define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init, |
26 | #define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset, | |
27 | #else | |
28 | #define INIT_FUNC_WATCHDOG_INIT | |
29 | #define INIT_FUNC_WATCHDOG_RESET | |
30 | #endif | |
31 | ||
012771d8 WD |
32 | #if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG) |
33 | # error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together." | |
34 | #endif | |
35 | ||
36 | /* | |
37 | * Hardware watchdog | |
38 | */ | |
39 | #ifdef CONFIG_HW_WATCHDOG | |
40 | #if defined(__ASSEMBLY__) | |
41 | #define WATCHDOG_RESET bl hw_watchdog_reset | |
42 | #else | |
43 | extern void hw_watchdog_reset(void); | |
44 | ||
45 | #define WATCHDOG_RESET hw_watchdog_reset | |
46 | #endif /* __ASSEMBLY__ */ | |
47 | #else | |
48 | /* | |
49 | * Maybe a software watchdog? | |
50 | */ | |
51 | #if defined(CONFIG_WATCHDOG) | |
52 | #if defined(__ASSEMBLY__) | |
53 | #define WATCHDOG_RESET bl watchdog_reset | |
54 | #else | |
55 | extern void watchdog_reset(void); | |
56 | ||
57 | #define WATCHDOG_RESET watchdog_reset | |
58 | #endif | |
59 | #else | |
60 | /* | |
61 | * No hardware or software watchdog. | |
62 | */ | |
63 | #if defined(__ASSEMBLY__) | |
64 | #define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/ | |
65 | #else | |
66 | #define WATCHDOG_RESET() {} | |
67 | #endif /* __ASSEMBLY__ */ | |
68 | #endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */ | |
69 | #endif /* CONFIG_HW_WATCHDOG */ | |
70 | ||
71 | /* | |
72 | * Prototypes from $(CPU)/cpu.c. | |
73 | */ | |
74 | ||
75 | /* MPC 8xx */ | |
76 | #if (defined(CONFIG_8xx) || defined(CONFIG_MPC860)) && !defined(__ASSEMBLY__) | |
77 | void reset_8xx_watchdog(volatile immap_t *immr); | |
78 | #endif | |
79 | ||
0db5bca8 WD |
80 | /* MPC 5xx */ |
81 | #if defined(CONFIG_5xx) && !defined(__ASSEMBLY__) | |
82 | void reset_5xx_watchdog(volatile immap_t *immr); | |
83 | #endif | |
84 | ||
a21fb981 DZ |
85 | /* MPC 5xxx */ |
86 | #if defined(CONFIG_MPC5xxx) && !defined(__ASSEMBLY__) | |
87 | void reset_5xxx_watchdog(void); | |
88 | #endif | |
89 | ||
0c8721a4 | 90 | /* AMCC 4xx */ |
012771d8 WD |
91 | #if defined(CONFIG_4xx) && !defined(__ASSEMBLY__) |
92 | void reset_4xx_watchdog(void); | |
93 | #endif | |
94 | ||
e9a389a1 | 95 | #if defined(CONFIG_HW_WATCHDOG) && !defined(__ASSEMBLY__) |
a6720762 TR |
96 | void hw_watchdog_init(void); |
97 | #endif | |
0f8062b2 BR |
98 | |
99 | #if defined(CONFIG_MPC85xx) && !defined(__ASSEMBLY__) | |
100 | void init_85xx_watchdog(void); | |
101 | #endif | |
012771d8 | 102 | #endif /* _WATCHDOG_H_ */ |