projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| e9a389a1 | 75 | #if defined(CONFIG_HW_WATCHDOG) && !defined(__ASSEMBLY__) |
| a6720762 TR |
76 | void hw_watchdog_init(void); |
| 77 | #endif | |
| 0f8062b2 BR |
78 | |
| 79 | #if defined(CONFIG_MPC85xx) && !defined(__ASSEMBLY__) | |
| 80 | void init_85xx_watchdog(void); | |
| 81 | #endif | |
| 012771d8 | 82 | #endif /* _WATCHDOG_H_ */ |