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e9a389a184
- Enable hw_watchdog_init() in watchdog.h if CONFIG_HW_WATCHDOG is defined. - Move blackfin hw watchdog driver to the generic driver folder. - Call hw_watchdog_init() from blackfin board init code. - Reuse macro CONFIG_WATCHDOG_TIMEOUT_MSECS - Update README.watchdog accordingly Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
115 lines
3.0 KiB
C
115 lines
3.0 KiB
C
/*
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* (C) Copyright 2001
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* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Watchdog functions and macros.
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*/
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#ifndef _WATCHDOG_H_
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#define _WATCHDOG_H_
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#if !defined(__ASSEMBLY__)
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/*
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* Reset the watchdog timer, always returns 0
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*
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* This function is here since it is shared between board_f() and board_r(),
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* and the legacy arch/<arch>/board.c code.
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*/
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int init_func_watchdog_reset(void);
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#endif
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#ifdef CONFIG_WATCHDOG
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#define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
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#define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
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#else
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#define INIT_FUNC_WATCHDOG_INIT
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#define INIT_FUNC_WATCHDOG_RESET
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#endif
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#if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG)
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# error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together."
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#endif
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/*
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* Hardware watchdog
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*/
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#ifdef CONFIG_HW_WATCHDOG
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#if defined(__ASSEMBLY__)
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#define WATCHDOG_RESET bl hw_watchdog_reset
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#else
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extern void hw_watchdog_reset(void);
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#define WATCHDOG_RESET hw_watchdog_reset
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#endif /* __ASSEMBLY__ */
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#else
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/*
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* Maybe a software watchdog?
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*/
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#if defined(CONFIG_WATCHDOG)
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#if defined(__ASSEMBLY__)
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#define WATCHDOG_RESET bl watchdog_reset
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#else
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extern void watchdog_reset(void);
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#define WATCHDOG_RESET watchdog_reset
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#endif
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#else
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/*
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* No hardware or software watchdog.
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*/
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#if defined(__ASSEMBLY__)
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#define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/
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#else
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#define WATCHDOG_RESET() {}
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */
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#endif /* CONFIG_HW_WATCHDOG */
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/*
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* Prototypes from $(CPU)/cpu.c.
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*/
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/* MPC 8xx */
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#if (defined(CONFIG_8xx) || defined(CONFIG_MPC860)) && !defined(__ASSEMBLY__)
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void reset_8xx_watchdog(volatile immap_t *immr);
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#endif
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/* MPC 5xx */
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#if defined(CONFIG_5xx) && !defined(__ASSEMBLY__)
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void reset_5xx_watchdog(volatile immap_t *immr);
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#endif
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/* MPC 5xxx */
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#if defined(CONFIG_MPC5xxx) && !defined(__ASSEMBLY__)
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void reset_5xxx_watchdog(void);
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#endif
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/* AMCC 4xx */
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#if defined(CONFIG_4xx) && !defined(__ASSEMBLY__)
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void reset_4xx_watchdog(void);
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#endif
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#if defined(CONFIG_HW_WATCHDOG) && !defined(__ASSEMBLY__)
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void hw_watchdog_init(void);
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#endif
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#endif /* _WATCHDOG_H_ */
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