diff options
Diffstat (limited to 'roms/u-boot/include/watchdog.h')
-rw-r--r-- | roms/u-boot/include/watchdog.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/roms/u-boot/include/watchdog.h b/roms/u-boot/include/watchdog.h new file mode 100644 index 000000000..a4a4e8e61 --- /dev/null +++ b/roms/u-boot/include/watchdog.h @@ -0,0 +1,87 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2001 + * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. + */ + +/* + * Watchdog functions and macros. + */ +#ifndef _WATCHDOG_H_ +#define _WATCHDOG_H_ + +#if !defined(__ASSEMBLY__) +/* + * Reset the watchdog timer, always returns 0 + * + * This function is here since it is shared between board_f() and board_r(), + * and the legacy arch/<arch>/board.c code. + */ +int init_func_watchdog_reset(void); +#endif + +#if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG) +#define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init, +#define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset, +#else +#define INIT_FUNC_WATCHDOG_INIT +#define INIT_FUNC_WATCHDOG_RESET +#endif + +#if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG) +# error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together." +#endif + +/* + * Hardware watchdog + */ +#ifdef CONFIG_HW_WATCHDOG + #if defined(__ASSEMBLY__) + #define WATCHDOG_RESET bl hw_watchdog_reset + #else + extern void hw_watchdog_reset(void); + + #define WATCHDOG_RESET hw_watchdog_reset + #endif /* __ASSEMBLY__ */ +#else + /* + * Maybe a software watchdog? + */ + #if defined(CONFIG_WATCHDOG) + #if defined(__ASSEMBLY__) + #define WATCHDOG_RESET bl watchdog_reset + #else + /* Don't require the watchdog to be enabled in SPL */ + #if defined(CONFIG_SPL_BUILD) && \ + !defined(CONFIG_SPL_WATCHDOG_SUPPORT) + #define WATCHDOG_RESET() {} + #else + extern void watchdog_reset(void); + + #define WATCHDOG_RESET watchdog_reset + #endif + #endif + #else + /* + * No hardware or software watchdog. + */ + #if defined(__ASSEMBLY__) + #define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/ + #else + #define WATCHDOG_RESET() {} + #endif /* __ASSEMBLY__ */ + #endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */ +#endif /* CONFIG_HW_WATCHDOG */ + +/* + * Prototypes from $(CPU)/cpu.c. + */ + +#if (defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)) && !defined(__ASSEMBLY__) + void hw_watchdog_init(void); +#endif + +#if defined(CONFIG_MPC85xx) && !defined(__ASSEMBLY__) + void init_85xx_watchdog(void); +#endif +#endif /* _WATCHDOG_H_ */ |