blob: ac6ba8c09147365b666a2684e5bbba851946367e [file] [log] [blame]
wdenk012771d2002-03-08 21:31:05 +00001/*
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
30#if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG)
31# error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together."
32#endif
33
wdenk028ab6b2004-02-23 23:54:43 +000034#if defined(__ASSEMBLY__) && defined(__NIOS__)
35# error "Configuration error: WATCHDOG_RESET inside assembler not supported for Nios platforms."
36#endif
37
wdenk012771d2002-03-08 21:31:05 +000038/*
39 * Hardware watchdog
40 */
41#ifdef CONFIG_HW_WATCHDOG
42 #if defined(__ASSEMBLY__)
43 #define WATCHDOG_RESET bl hw_watchdog_reset
44 #else
45 extern void hw_watchdog_reset(void);
46
47 #define WATCHDOG_RESET hw_watchdog_reset
48 #endif /* __ASSEMBLY__ */
49#else
50 /*
51 * Maybe a software watchdog?
52 */
53 #if defined(CONFIG_WATCHDOG)
54 #if defined(__ASSEMBLY__)
55 #define WATCHDOG_RESET bl watchdog_reset
56 #else
57 extern void watchdog_reset(void);
58
59 #define WATCHDOG_RESET watchdog_reset
60 #endif
61 #else
62 /*
63 * No hardware or software watchdog.
64 */
65 #if defined(__ASSEMBLY__)
66 #define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/
67 #else
68 #define WATCHDOG_RESET() {}
69 #endif /* __ASSEMBLY__ */
70 #endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */
71#endif /* CONFIG_HW_WATCHDOG */
72
73/*
74 * Prototypes from $(CPU)/cpu.c.
75 */
76
77/* MPC 8xx */
78#if (defined(CONFIG_8xx) || defined(CONFIG_MPC860)) && !defined(__ASSEMBLY__)
79 void reset_8xx_watchdog(volatile immap_t *immr);
80#endif
81
wdenk0db5bca2003-03-31 17:27:09 +000082/* MPC 5xx */
83#if defined(CONFIG_5xx) && !defined(__ASSEMBLY__)
84 void reset_5xx_watchdog(volatile immap_t *immr);
85#endif
86
wdenk012771d2002-03-08 21:31:05 +000087/* IBM 4xx */
88#if defined(CONFIG_4xx) && !defined(__ASSEMBLY__)
89 void reset_4xx_watchdog(void);
90#endif
91
wdenk012771d2002-03-08 21:31:05 +000092#endif /* _WATCHDOG_H_ */