Subversion Repositories openrisc_2011-10-31

/*

 * Copyright (c) 1982, 1986, 1988, 1993, 1994

 *      The Regents of the University of California.  All rights reserved.

 *

 * 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.

 *

 *      @(#)reboot.h    8.3 (Berkeley) 12/13/94

 * $Id: reboot.h,v 1.2 2001-09-27 12:02:00 chris Exp $

 */

#ifndef _SYS_REBOOT_H_

#define _SYS_REBOOT_H_

/*

 * Arguments to reboot system call.  These are passed to

 * the boot program and on to init.

 */

#define RB_AUTOBOOT     0        /* flags for system auto-booting itself */

#define RB_ASKNAME      0x001   /* ask for file name to reboot from */

#define RB_SINGLE       0x002   /* reboot to single user only */

#define RB_NOSYNC       0x004   /* dont sync before reboot */

#define RB_HALT         0x008   /* don't reboot, just halt */

#define RB_INITNAME     0x010   /* name given for /etc/init (unused) */

#define RB_DFLTROOT     0x020   /* use compiled-in rootdev */

#define RB_KDB          0x040   /* give control to kernel debugger */

#define RB_RDONLY       0x080   /* mount root fs read-only */

#define RB_DUMP         0x100   /* dump kernel memory before reboot */

#define RB_MINIROOT     0x200   /* mini-root present in memory at boot time */

#define RB_CONFIG       0x400   /* invoke user configuration routing */

#define RB_VERBOSE      0x800   /* print all potentially useful info */

#define RB_SERIAL       0x1000  /* user serial port as console */

#define RB_CDROM        0x2000  /* use cdrom as root */

#define RB_POWEROFF     0x4000  /* if you can, turn the power off */

#define RB_GDB          0x8000  /* use GDB remote debugger instead of DDB */

#define RB_MUTE         0x10000 /* Come up with the console muted */

#define RB_SELFTEST     0x20000 /* don't boot to normal operation, do selftest */

#define RB_BOOTINFO     0x80000000      /* have `struct bootinfo *' arg */

/*

 * Constants for converting boot-style device number to type,

 * adaptor (uba, mba, etc), unit number and partition number.

 * Type (== major device number) is in the low byte

 * for backward compatibility.  Except for that of the "magic

 * number", each mask applies to the shifted value.

 * Format:

 *       (4) (4) (4) (4)  (8)     (8)

 *      --------------------------------

 *      |MA | AD| CT| UN| PART  | TYPE |

 *      --------------------------------

 */

#define B_ADAPTORSHIFT          24

#define B_ADAPTORMASK           0x0f

#define B_ADAPTOR(val)          (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK)

#define B_CONTROLLERSHIFT       20

#define B_CONTROLLERMASK        0xf

#define B_CONTROLLER(val)       (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK)

#define B_SLICESHIFT            20

#define B_SLICEMASK             0xff

#define B_SLICE(val)            (((val)>>B_SLICESHIFT) & B_SLICEMASK)

#define B_UNITSHIFT             16

#define B_UNITMASK              0xf

#define B_UNIT(val)             (((val) >> B_UNITSHIFT) & B_UNITMASK)

#define B_PARTITIONSHIFT        8

#define B_PARTITIONMASK         0xff

#define B_PARTITION(val)        (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK)

#define B_TYPESHIFT             0

#define B_TYPEMASK              0xff

#define B_TYPE(val)             (((val) >> B_TYPESHIFT) & B_TYPEMASK)

#define B_MAGICMASK     0xf0000000

#define B_DEVMAGIC      0xa0000000

#define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \

        (((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \

        ((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \

        ((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)

#endif