34 lines
721 B
C
34 lines
721 B
C
/* Copyright 2018 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Watchdog driver */
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#include "common.h"
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#include "hooks.h"
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#include "panic.h"
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#include "registers.h"
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#include "watchdog.h"
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void watchdog_reload(void)
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{
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SCP_WDT_RELOAD = SCP_WDT_RELOAD_VALUE;
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}
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DECLARE_HOOK(HOOK_TICK, watchdog_reload, HOOK_PRIO_DEFAULT);
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int watchdog_init(void)
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{
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const uint32_t watchdog_timeout =
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SCP_WDT_PERIOD(CONFIG_WATCHDOG_PERIOD_MS);
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/* Disable watchdog */
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SCP_WDT_CFG = 0;
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/* Enable watchdog */
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SCP_WDT_CFG = SCP_WDT_ENABLE | watchdog_timeout;
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/* Reload watchdog */
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watchdog_reload();
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return EC_SUCCESS;
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}
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