Annotation of sys/arch/mvme68k/dev/nvramreg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: nvramreg.h,v 1.4 2003/06/02 23:27:50 millert Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1992, 1993
! 5: * The Regents of the University of California. All rights reserved.
! 6: *
! 7: * This software was developed by the Computer Systems Engineering group
! 8: * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
! 9: * contributed to Berkeley.
! 10: *
! 11: * All advertising materials mentioning features or use of this software
! 12: * must display the following acknowledgement:
! 13: * This product includes software developed by the University of
! 14: * California, Lawrence Berkeley Laboratory.
! 15: *
! 16: * Redistribution and use in source and binary forms, with or without
! 17: * modification, are permitted provided that the following conditions
! 18: * are met:
! 19: * 1. Redistributions of source code must retain the above copyright
! 20: * notice, this list of conditions and the following disclaimer.
! 21: * 2. Redistributions in binary form must reproduce the above copyright
! 22: * notice, this list of conditions and the following disclaimer in the
! 23: * documentation and/or other materials provided with the distribution.
! 24: * 3. Neither the name of the University nor the names of its contributors
! 25: * may be used to endorse or promote products derived from this software
! 26: * without specific prior written permission.
! 27: *
! 28: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 29: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 30: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 31: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 32: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 33: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 34: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 35: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 36: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 37: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 38: * SUCH DAMAGE.
! 39: */
! 40:
! 41: /*
! 42: * Mostek MK48T02 clock.
! 43: */
! 44: struct clockreg {
! 45: volatile u_char cl_csr; /* control register */
! 46: volatile u_char cl_sec; /* seconds (0..59; BCD) */
! 47: volatile u_char cl_min; /* minutes (0..59; BCD) */
! 48: volatile u_char cl_hour; /* hour (0..23; BCD) */
! 49: volatile u_char cl_wday; /* weekday (1..7) */
! 50: volatile u_char cl_mday; /* day in month (1..31; BCD) */
! 51: volatile u_char cl_month; /* month (1..12; BCD) */
! 52: volatile u_char cl_year; /* year (0..99; BCD) */
! 53: };
! 54:
! 55: /* bits in cl_csr */
! 56: #define CLK_WRITE 0x80 /* want to write */
! 57: #define CLK_READ 0x40 /* want to read (freeze clock) */
! 58:
! 59: /*
! 60: * Motorola chose the year `1900' as their base count.
! 61: * XXX what happens when it wraps?
! 62: */
! 63: #define YEAR0 0
! 64:
! 65: #define MK48T02_SIZE 2*1024
! 66: #define MK48T08_SIZE 8*1024
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