diff options
Diffstat (limited to 'sys/arch/mvme68k/dev/nvramreg.h')
| -rw-r--r-- | sys/arch/mvme68k/dev/nvramreg.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sys/arch/mvme68k/dev/nvramreg.h b/sys/arch/mvme68k/dev/nvramreg.h new file mode 100644 index 00000000000..ec804e1e049 --- /dev/null +++ b/sys/arch/mvme68k/dev/nvramreg.h @@ -0,0 +1,70 @@ +/* $NetBSD: clockreg.h,v 1.5 1994/11/20 20:54:07 deraadt 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. 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, Berkeley and its contributors. + * 4. 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. + */ + +/* + * Mostek MK48T02 clock. + */ +struct clockreg { + volatile u_char cl_csr; /* control register */ + volatile u_char cl_sec; /* seconds (0..59; BCD) */ + volatile u_char cl_min; /* minutes (0..59; BCD) */ + volatile u_char cl_hour; /* hour (0..23; BCD) */ + volatile u_char cl_wday; /* weekday (1..7) */ + volatile u_char cl_mday; /* day in month (1..31; BCD) */ + volatile u_char cl_month; /* month (1..12; BCD) */ + volatile u_char cl_year; /* year (0..99; BCD) */ +}; + +/* bits in cl_csr */ +#define CLK_WRITE 0x80 /* want to write */ +#define CLK_READ 0x40 /* want to read (freeze clock) */ + +/* + * Motorola chose the year `1900' as their base count. + * XXX what happens when it wraps? + */ +#define YEAR0 0 + +#define MK48T02_SIZE 2*1024 +#define MK48T08_SIZE 8*1024 |