28 lines
541 B
C
28 lines
541 B
C
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/*
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* watchdog.c - driver for Blackfin on-chip watchdog
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*
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* Copyright (c) 2007-2009 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#include <common.h>
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#include <watchdog.h>
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#include <asm/blackfin.h>
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#include <asm/clock.h>
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#include <asm/mach-common/bits/watchdog.h>
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void hw_watchdog_reset(void)
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{
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bfin_write_WDOG_STAT(0);
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}
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void hw_watchdog_init(void)
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{
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bfin_write_WDOG_CTL(WDDIS);
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SSYNC();
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bfin_write_WDOG_CNT(CONFIG_WATCHDOG_TIMEOUT_MSECS / 1000 * get_sclk());
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hw_watchdog_reset();
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bfin_write_WDOG_CTL(WDEN);
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}
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