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/**
* @file
*
* @ingroup RTEMSBSPsPowerPCMPC55XX
*
* @brief Watchdog initialization code.
*/
/*
* Copyright (c) 2011 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <bsp.h>
#include <bsp/start.h>
#include <bsp/mpc55xx-config.h>
BSP_START_TEXT_SECTION void mpc55xx_start_watchdog(void)
{
#ifdef MPC55XX_NEEDS_LOW_LEVEL_INIT
#ifdef MPC55XX_HAS_SWT
/* Write keys to clear soft lock bit */
SWT.SR.R = 0x0000c520;
SWT.SR.R = 0x0000d928;
/* Clear watchdog enable (WEN) */
SWT.CR.R = 0x8000010A;
#endif
#endif
}
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