projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 012771d8 WD |
2 | /* |
| 3 | * (C) Copyright 2001 | |
| 4 | * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. | |
| 012771d8 WD |
5 | */ |
| 6 | ||
| 7 | /* | |
| 8 | * Watchdog functions and macros. | |
| 9 | */ | |
| 10 | #ifndef _WATCHDOG_H_ | |
| 11 | #define _WATCHDOG_H_ | |
| 12 | ||
| a6741bce SG |
13 | #if !defined(__ASSEMBLY__) |
| 14 | /* | |
| 15 | * Reset the watchdog timer, always returns 0 | |
| 16 | * | |
| 17 | * This function is here since it is shared between board_f() and board_r(), | |
| 18 | * and the legacy arch/<arch>/board.c code. | |
| 19 | */ | |
| 20 | int init_func_watchdog_reset(void); | |
| 21 | #endif | |
| 22 | ||
| 9be2e790 | 23 | #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG) |
| a6741bce SG |
24 | #define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init, |
| 25 | #define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset, | |
| 26 | #else | |
| 27 | #define INIT_FUNC_WATCHDOG_INIT | |
| 28 | #define INIT_FUNC_WATCHDOG_RESET | |
| 29 | #endif | |
| 30 | ||
| 012771d8 WD |
31 | #if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG) |
| 32 | # error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together." | |
| 33 | #endif | |
| 34 | ||
| 35 | /* | |
| 36 | * Hardware watchdog | |
| 37 | */ | |
| 38 | #ifdef CONFIG_HW_WATCHDOG | |
| 39 | #if defined(__ASSEMBLY__) | |
| 40 | #define WATCHDOG_RESET bl hw_watchdog_reset | |
| 41 | #else | |
| 42 | extern void hw_watchdog_reset(void); | |
| 43 | ||
| 44 | #define WATCHDOG_RESET hw_watchdog_reset | |
| 45 | #endif /* __ASSEMBLY__ */ | |
| 46 | #else | |
| 47 | /* | |
| 48 | * Maybe a software watchdog? | |
| 49 | */ | |
| 50 | #if defined(CONFIG_WATCHDOG) | |
| 51 | #if defined(__ASSEMBLY__) | |
| 52 | #define WATCHDOG_RESET bl watchdog_reset | |
| 53 | #else | |
| 7fbd42f5 SR |
54 | /* Don't require the watchdog to be enabled in SPL */ |
| 55 | #if defined(CONFIG_SPL_BUILD) && \ | |
| 56 | !defined(CONFIG_SPL_WATCHDOG_SUPPORT) | |
| 57 | #define WATCHDOG_RESET() {} | |
| 58 | #else | |
| 59 | extern void watchdog_reset(void); | |
| 012771d8 | 60 | |
| 7fbd42f5 SR |
61 | #define WATCHDOG_RESET watchdog_reset |
| 62 | #endif | |
| 012771d8 WD |
63 | #endif |
| 64 | #else | |
| 65 | /* | |
| 66 | * No hardware or software watchdog. | |
| 67 | */ | |
| 68 | #if defined(__ASSEMBLY__) | |
| 69 | #define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/ | |
| 70 | #else | |
| 71 | #define WATCHDOG_RESET() {} | |
| 72 | #endif /* __ASSEMBLY__ */ | |
| 73 | #endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */ | |
| 74 | #endif /* CONFIG_HW_WATCHDOG */ | |
| 75 | ||
| 76 | /* | |
| 77 | * Prototypes from $(CPU)/cpu.c. | |
| 78 | */ | |
| 79 | ||
| 6912f2a8 | 80 | #if (defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)) && !defined(__ASSEMBLY__) |
| a6720762 TR |
81 | void hw_watchdog_init(void); |
| 82 | #endif | |
| 0f8062b2 BR |
83 | |
| 84 | #if defined(CONFIG_MPC85xx) && !defined(__ASSEMBLY__) | |
| 85 | void init_85xx_watchdog(void); | |
| 86 | #endif | |
| 012771d8 | 87 | #endif /* _WATCHDOG_H_ */ |