2002-08-17 17:36:01 +08:00
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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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2013-07-08 15:37:19 +08:00
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* SPDX-License-Identifier: GPL-2.0+
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2002-08-17 17:36:01 +08:00
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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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2008-10-16 21:01:15 +08:00
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volatile ushort *hwd = (ushort *)(CONFIG_SYS_W7O_EBC_PB7CR & 0xfff00000);
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2002-08-17 17:36:01 +08:00
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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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