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/************************************************************************************
* arch/arm/src/imx/imx_wdog.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __ARCH_ARM_IMX_WDOG_H
#define __ARCH_ARM_IMX_WDOG_H
/************************************************************************************
* Included Files
************************************************************************************/
/************************************************************************************
* Definitions
************************************************************************************/
/* WDOG Register Offsets ************************************************************/
#define WDOG_WCR_OFFSET 0x0000 /* Watchdog Control Register */
#define WDOG_WSR_OFFSET 0x0004 /* Watchdog Service Register */
#define WDOG_WSTR_OFFSET 0x0008 /* Watchdog Status Register */
/* WDOG Register Addresses **********************************************************/
#define IMX_WDOG_WCR (IMX_WDOG_VBASE + WDOG_WCR_OFFSET)
#define IMX_WDOG_WSR (IMX_WDOG_VBASE + WDOG_WSR_OFFSET)
#define IMX_WDOG_WSTRT (IMX_WDOG_VBASE + WDOG_WSTR_OFFSET)
/* WDOG Register Bit Definitions ****************************************************/
/* Watchdog Control Register */
#define WDOG_WCR_WDE (1 << 0) /* Bit 0: Watchdog Enable */
#define WDOG_WCR_WDEC (1 << 1) /* Bit 1: Watchdog Enable Control */
#define WDOG_WCR_SWR (1 << 2) /* Bit 2: Software Reset Enable */
#define WDOG_WCR_TMD (1 << 3) /* Bit 3: Test Mode Enable */
#define WDOG_WCR_WIE (1 << 4) /* Bit 4: Watchdog Interrupt Enable */
#define WDOG_WCR_WT_SHIFT 8 /* Bit 8-14: Watchdog Timeout */
#define WDOG_WCR_WT_MASK (0x7f << WDOG_WCR_WT_SHIFT)
#define WDOG_WCR_WHALT (1 << 15) /* Bit 15: Watchdog Halt */
/* Watchdog Service Register */
#define WDOG_WSR_SHIFT 0 /* Bit 0-15: Watchdog Service Register */
#define WDOG_WT_MASK (0xffff << WDOG_WSR_SHIFT)
/************************************************************************************
* Inline Functions
************************************************************************************/
#endif /* __ARCH_ARM_IMX_WDOG_H */
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