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/* $OpenBSD: nvramreg.h,v 1.4 2004/01/29 10:58:06 miod Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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 of the University 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 REGENTS 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 REGENTS 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.
*
* @(#)clockreg.h 8.1 (Berkeley) 6/11/93
*/
/*
* mvme2x00 Mostek TOD clock/NVRAM
*/
/*
* Mostek MK48T59 clock.
*
* This chip is 8k in size.
* The first TOD clock starts at offset 0x1FF8. The following structure
* describes last 2K of it's 8K address space. The first 6K of the NVRAM
* space is used for various things as follows:
* 0000-0fff User Area
* 1000-10ff Networking Area
* 1100-16f7 Operating System Area
* 16f8-1ef7 ROM Debugger Area
* 1ef8-1ff7 Configuration Area (Ethernet address etc)
* 1ff8-1fff TOD clock
*/
#define NVRAM_BASE 0x80000000 /* access thrugh ISA space! */
#define NVRAM_S0 0x00000074
#define NVRAM_S1 0x00000075
#define NVRAM_DATA 0x00000077
#define NVRAM_SIZE 0x2000
#define RTC_SECONDS 0x1FF9
#define RTC_MINUTES 0x1FFA
#define RTC_HOURS 0x1FFB
#define RTC_DAY_OF_WEEK 0x1FFC
#define RTC_DAY_OF_MONTH 0x1FFD
#define RTC_MONTH 0x1FFE
#define RTC_YEAR 0x1FFF
#define RTC_CONTROLA 0x1FF8
#define RTC_CA_WRITE 0x80
#define RTC_CA_READ 0x40
#define RTC_CA_CALIB_SIGN 0x20
#define RTC_CA_CALIB_MASK 0x1f
#define RTC_CONTROLB 0x1FF9
#define RTC_CB_STOP 0x80
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