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https://github.com/AsahiLinux/u-boot
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48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
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/*
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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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* W7O board level hardware watchdog.
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*/
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#include <common.h>
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#include <config.h>
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#ifdef CONFIG_HW_WATCHDOG
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#include <watchdog.h>
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void hw_watchdog_reset(void)
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{
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volatile ushort *hwd = (ushort *)(CFG_W7O_EBC_PB7CR & 0xfff00000);
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/*
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* Read the LMG's hwd register and toggle the
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* watchdog bit to reset it. On the LMC, just
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* reading it is enough, but toggling the bit
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* doen't hurt either.
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*/
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*hwd = *hwd ^ 0x8000;
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} /* hw_watchdog_reset() */
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#endif /* CONFIG_HW_WATCHDOG */
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