xref: /netbsd-src/sys/arch/sparc/dev/power.h (revision 8ad8b5528b902ecee850b92b95e10305695fcdc8)
1 /*	$NetBSD: power.h,v 1.6 2012/07/29 00:04:05 matt Exp $ */
2 
3 /*
4  * Copyright (c) 1996
5  *	The President and Fellows of Harvard College. All rights reserved.
6  *
7  * All advertising materials mentioning features or use of this software
8  * must display the following acknowledgement:
9  *	This product includes software developed by Aaron Brown and
10  *	Harvard University.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  *
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  * 3. All advertising materials mentioning features or use of this software
22  *    must display the following acknowledgement:
23  *	This product includes software developed by Harvard University
24  *	and its contributors.
25  * 4. Neither the name of the University nor the names of its contributors
26  *    may be used to endorse or promote products derived from this software
27  *    without specific prior written permission.
28  *
29  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39  * SUCH DAMAGE.
40  */
41 
42 /*
43  * Sun-4m power register.  This register allows the computer to power itself
44  * down.
45  */
46 
47 #define POWER_OFF	0x1	/* remove power */
48 
49 #define	POWER_REG	((volatile uint8_t *)(power_reg))
50 
51 #define	POWER_BITS	"\20\1POWEROFF"
52 
53 #ifndef _LOCORE
54 extern volatile uint8_t *power_reg;
55 #endif
56 
57 extern void powerdown(void);	/* power off function */
58