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