78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/* $NetBSD: wdtreg.h,v 1.6 2005/12/11 12:18:59 christos Exp $ */
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/*-
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* Copyright (C) 1999 SAITOH Masanobu. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SH3_WDTREG_H_
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#define _SH3_WDTREG_H_
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/* WDT registers */
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#if !defined(SH4)
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/* SH3 definitions */
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#define SHREG_WTCNT 0xffffff84
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#define SHREG_WTCSR 0xffffff86
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#else
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/* SH4 definitions */
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#define SHREG_WTCNT 0xffc00008
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#define SHREG_WTCSR 0xffc0000c
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#endif
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/* read as bytes, write as shorts with a magic number in the upper byte */
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#define SHREG_WTCNT_R (*(volatile unsigned char *)SHREG_WTCNT)
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#define SHREG_WTCNT_W (*(volatile unsigned short *)SHREG_WTCNT)
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#define SHREG_WTCSR_R (*(volatile unsigned char *)SHREG_WTCSR)
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#define SHREG_WTCSR_W (*(volatile unsigned short *)SHREG_WTCSR)
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/* magic upper bytes for write access */
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#define WTCNT_W_M 0x5A00
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#define WTCSR_W_M 0xA500
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#define WTCSR_TME 0x80
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#define WTCSR_WT 0x40
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#define WTCSR_RSTS 0x20
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#define WTCSR_WOVF 0x10
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#define WTCSR_IOVF 0x08
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#define WTCSR_CKS2 0x04
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#define WTCSR_CKS1 0x02
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#define WTCSR_CKS0 0x01
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#define WTCSR_CKS 0x07
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#define WTCSR_CKS_1 0x00
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#define WTCSR_CKS_4 0x01
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#define WTCSR_CKS_16 0x02
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#define WTCSR_CKS_32 0x03
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#define WTCSR_CKS_64 0x04
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#define WTCSR_CKS_256 0x05
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#define WTCSR_CKS_1024 0x06
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#define WTCSR_CKS_4096 0x07
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#endif /* !_SH3_WDTREG_H_ */
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