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Viewing changes to roms/u-boot/board/w7o/watchdog.c

  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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roms/u-boot/board/w7o/watchdog.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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 * SPDX-License-Identifier:     GPL-2.0+
 
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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 *)(CONFIG_SYS_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 */