3 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
25 * Watchdog functions and macros.
30 #if !defined(__ASSEMBLY__)
32 * Reset the watchdog timer, always returns 0
34 * This function is here since it is shared between board_f() and board_r(),
35 * and the legacy arch/<arch>/board.c code.
37 int init_func_watchdog_reset(void);
40 #ifdef CONFIG_WATCHDOG
41 #define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
42 #define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
44 #define INIT_FUNC_WATCHDOG_INIT
45 #define INIT_FUNC_WATCHDOG_RESET
48 #if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG)
49 # error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together."
55 #ifdef CONFIG_HW_WATCHDOG
56 #if defined(__ASSEMBLY__)
57 #define WATCHDOG_RESET bl hw_watchdog_reset
59 extern void hw_watchdog_reset(void);
61 #define WATCHDOG_RESET hw_watchdog_reset
62 #endif /* __ASSEMBLY__ */
65 * Maybe a software watchdog?
67 #if defined(CONFIG_WATCHDOG)
68 #if defined(__ASSEMBLY__)
69 #define WATCHDOG_RESET bl watchdog_reset
71 extern void watchdog_reset(void);
73 #define WATCHDOG_RESET watchdog_reset
77 * No hardware or software watchdog.
79 #if defined(__ASSEMBLY__)
80 #define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/
82 #define WATCHDOG_RESET() {}
83 #endif /* __ASSEMBLY__ */
84 #endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */
85 #endif /* CONFIG_HW_WATCHDOG */
88 * Prototypes from $(CPU)/cpu.c.
92 #if (defined(CONFIG_8xx) || defined(CONFIG_MPC860)) && !defined(__ASSEMBLY__)
93 void reset_8xx_watchdog(volatile immap_t *immr);
97 #if defined(CONFIG_5xx) && !defined(__ASSEMBLY__)
98 void reset_5xx_watchdog(volatile immap_t *immr);
102 #if defined(CONFIG_MPC5xxx) && !defined(__ASSEMBLY__)
103 void reset_5xxx_watchdog(void);
107 #if defined(CONFIG_4xx) && !defined(__ASSEMBLY__)
108 void reset_4xx_watchdog(void);
111 #if defined(CONFIG_HW_WATCHDOG) && !defined(__ASSEMBLY__)
112 void hw_watchdog_init(void);
114 #endif /* _WATCHDOG_H_ */