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012771d8 WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | /* | |
25 | * Watchdog functions and macros. | |
26 | */ | |
27 | #ifndef _WATCHDOG_H_ | |
28 | #define _WATCHDOG_H_ | |
29 | ||
a6741bce SG |
30 | #if !defined(__ASSEMBLY__) |
31 | /* | |
32 | * Reset the watchdog timer, always returns 0 | |
33 | * | |
34 | * This function is here since it is shared between board_f() and board_r(), | |
35 | * and the legacy arch/<arch>/board.c code. | |
36 | */ | |
37 | int init_func_watchdog_reset(void); | |
38 | #endif | |
39 | ||
40 | #ifdef CONFIG_WATCHDOG | |
41 | #define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init, | |
42 | #define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset, | |
43 | #else | |
44 | #define INIT_FUNC_WATCHDOG_INIT | |
45 | #define INIT_FUNC_WATCHDOG_RESET | |
46 | #endif | |
47 | ||
012771d8 WD |
48 | #if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG) |
49 | # error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together." | |
50 | #endif | |
51 | ||
52 | /* | |
53 | * Hardware watchdog | |
54 | */ | |
55 | #ifdef CONFIG_HW_WATCHDOG | |
56 | #if defined(__ASSEMBLY__) | |
57 | #define WATCHDOG_RESET bl hw_watchdog_reset | |
58 | #else | |
59 | extern void hw_watchdog_reset(void); | |
60 | ||
61 | #define WATCHDOG_RESET hw_watchdog_reset | |
62 | #endif /* __ASSEMBLY__ */ | |
63 | #else | |
64 | /* | |
65 | * Maybe a software watchdog? | |
66 | */ | |
67 | #if defined(CONFIG_WATCHDOG) | |
68 | #if defined(__ASSEMBLY__) | |
69 | #define WATCHDOG_RESET bl watchdog_reset | |
70 | #else | |
71 | extern void watchdog_reset(void); | |
72 | ||
73 | #define WATCHDOG_RESET watchdog_reset | |
74 | #endif | |
75 | #else | |
76 | /* | |
77 | * No hardware or software watchdog. | |
78 | */ | |
79 | #if defined(__ASSEMBLY__) | |
80 | #define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/ | |
81 | #else | |
82 | #define WATCHDOG_RESET() {} | |
83 | #endif /* __ASSEMBLY__ */ | |
84 | #endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */ | |
85 | #endif /* CONFIG_HW_WATCHDOG */ | |
86 | ||
87 | /* | |
88 | * Prototypes from $(CPU)/cpu.c. | |
89 | */ | |
90 | ||
91 | /* MPC 8xx */ | |
92 | #if (defined(CONFIG_8xx) || defined(CONFIG_MPC860)) && !defined(__ASSEMBLY__) | |
93 | void reset_8xx_watchdog(volatile immap_t *immr); | |
94 | #endif | |
95 | ||
0db5bca8 WD |
96 | /* MPC 5xx */ |
97 | #if defined(CONFIG_5xx) && !defined(__ASSEMBLY__) | |
98 | void reset_5xx_watchdog(volatile immap_t *immr); | |
99 | #endif | |
100 | ||
a21fb981 DZ |
101 | /* MPC 5xxx */ |
102 | #if defined(CONFIG_MPC5xxx) && !defined(__ASSEMBLY__) | |
103 | void reset_5xxx_watchdog(void); | |
104 | #endif | |
105 | ||
0c8721a4 | 106 | /* AMCC 4xx */ |
012771d8 WD |
107 | #if defined(CONFIG_4xx) && !defined(__ASSEMBLY__) |
108 | void reset_4xx_watchdog(void); | |
109 | #endif | |
110 | ||
a6720762 TR |
111 | /* Freescale i.MX */ |
112 | #if defined(CONFIG_IMX_WATCHDOG) && !defined(__ASSEMBLY__) | |
113 | void hw_watchdog_init(void); | |
114 | #endif | |
012771d8 | 115 | #endif /* _WATCHDOG_H_ */ |