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8b3a242ff0
This reduces memory footprint. BUG=chrome-os-partner:15714 BRANCH=none TEST=system still boots; 'waitms 1500' prints watchdog error dump Change-Id: Ieb0248a34655514b03d919cc36c2b369691da716 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/36937 Reviewed-by: Simon Glass <sjg@chromium.org>
38 lines
1.0 KiB
C
38 lines
1.0 KiB
C
/* Copyright (c) 2012 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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#ifndef __CROS_EC_WATCHDOG_H
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#define __CROS_EC_WATCHDOG_H
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/* Watchdog period in ms; must be at least twice HOOK_TICK_INTERVAL */
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#define WATCHDOG_PERIOD_MS 1100
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/**
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* Initialize the watchdog.
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*
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* This will cause the CPU to reboot if it has been more than 2 watchdog
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* periods since watchdog_reload() has been called.
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*/
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int watchdog_init(void);
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/**
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* Display a trace with information about an expired watchdog timer
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*
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* This shows the location in the code where the expiration happened.
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* Usually this helps locate a loop which is blocking execution of the
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* watchdog task.
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*
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* @param excep_lr Value of lr to indicate caller return
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* @param excep_sp Value of sp to indicate caller task id
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*/
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void watchdog_trace(uint32_t excep_lr, uint32_t excep_sp);
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/* Reload the watchdog counter */
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void watchdog_reload(void);
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#endif /* __CROS_EC_WATCHDOG_H */
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