1/* $NetBSD: wdtreg.h,v 1.4.12.1 2005/11/10 13:58:38 skrll Exp $ */ 2 3/*- 4 * Copyright (C) 1999 SAITOH Masanobu. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef _SH3_WDTREG_H_ 30#define _SH3_WDTREG_H_ 31 32/* WDT registers */ 33 34#if !defined(SH4) 35 36/* SH3 definitions */ 37#define SHREG_WTCNT 0xffffff84 38#define SHREG_WTCSR 0xffffff86 39 40#else 41 42/* SH4 definitions */ 43#define SHREG_WTCNT 0xffc00008 44#define SHREG_WTCSR 0xffc0000c 45 46#endif 47 48/* read as bytes, write as shorts with a magic number in the upper byte */ 49#define SHREG_WTCNT_R (*(volatile unsigned char *)SHREG_WTCNT) 50#define SHREG_WTCNT_W (*(volatile unsigned short *)SHREG_WTCNT) 51#define SHREG_WTCSR_R (*(volatile unsigned char *)SHREG_WTCSR) 52#define SHREG_WTCSR_W (*(volatile unsigned short *)SHREG_WTCSR) 53 54/* magic upper bytes for write access */ 55#define WTCNT_W_M 0x5A00 56#define WTCSR_W_M 0xA500 57 58#define WTCSR_TME 0x80 59#define WTCSR_WT 0x40 60#define WTCSR_RSTS 0x20 61#define WTCSR_WOVF 0x10 62#define WTCSR_IOVF 0x08 63#define WTCSR_CKS2 0x04 64#define WTCSR_CKS1 0x02 65#define WTCSR_CKS0 0x01 66 67#define WTCSR_CKS 0x07 68#define WTCSR_CKS_1 0x00 69#define WTCSR_CKS_4 0x01 70#define WTCSR_CKS_16 0x02 71#define WTCSR_CKS_32 0x03 72#define WTCSR_CKS_64 0x04 73#define WTCSR_CKS_256 0x05 74#define WTCSR_CKS_1024 0x06 75#define WTCSR_CKS_4096 0x07 76 77#endif /* !_SH3_WDTREG_H_ */ 78