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Annotation of sys/arch/sparc/dev/sbusreg.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: sbusreg.h,v 1.5 2007/05/29 09:54:15 sobrado Exp $     */
        !             2: /*     $NetBSD: sbusreg.h,v 1.3 1997/09/14 19:17:25 pk Exp $ */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1992, 1993
        !             6:  *     The Regents of the University of California.  All rights reserved.
        !             7:  *
        !             8:  * This software was developed by the Computer Systems Engineering group
        !             9:  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
        !            10:  * contributed to Berkeley.
        !            11:  *
        !            12:  * All advertising materials mentioning features or use of this software
        !            13:  * must display the following acknowledgement:
        !            14:  *     This product includes software developed by the University of
        !            15:  *     California, Lawrence Berkeley Laboratory.
        !            16:  *
        !            17:  * Redistribution and use in source and binary forms, with or without
        !            18:  * modification, are permitted provided that the following conditions
        !            19:  * are met:
        !            20:  * 1. Redistributions of source code must retain the above copyright
        !            21:  *    notice, this list of conditions and the following disclaimer.
        !            22:  * 2. Redistributions in binary form must reproduce the above copyright
        !            23:  *    notice, this list of conditions and the following disclaimer in the
        !            24:  *    documentation and/or other materials provided with the distribution.
        !            25:  * 3. 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:  *     @(#)sbusreg.h   8.1 (Berkeley) 6/11/93
        !            42:  */
        !            43:
        !            44: /*
        !            45:  * Sun-4c S-bus definitions.  (Should be made generic!)
        !            46:  *
        !            47:  * SBus slot 0 is not a separate slot; it talks to the onboard I/O devices.
        !            48:  * It is, however, addressed just like any `real' SBus.
        !            49:  *
        !            50:  * SBus device addresses are obtained from the FORTH PROMs.  They come
        !            51:  * in `absolute' and `relative' address flavors, so we have to handle both.
        !            52:  * Relative addresses do *not* include the slot number.
        !            53:  */
        !            54: #define        SBUS_BASE               0xf8000000
        !            55: #define        SBUS_ADDR(slot, off)    (SBUS_BASE + ((slot) << 25) + (off))
        !            56: #define        SBUS_ABS(a)             ((unsigned)(a) >= SBUS_BASE)
        !            57: #define        SBUS_ABS_TO_SLOT(a)     (((a) - SBUS_BASE) >> 25)
        !            58: #define        SBUS_ABS_TO_OFFSET(a)   (((a) - SBUS_BASE) & 0x1ffffff)
        !            59:
        !            60: struct sbusreg {
        !            61:        u_int32_t       sbus_afsr;      /* M-to-S Asynchronous Fault Status */
        !            62:        u_int32_t       sbus_afar;      /* M-to-S Asynchronous Fault Address */
        !            63:        u_int32_t       sbus_arbiter;   /* Arbiter Enable  */
        !            64:        u_int32_t       sbus_reserved1;
        !            65:
        !            66: #define NSBUSCFG       20
        !            67:        /* Actual number dependent on machine model */
        !            68:        u_int32_t       sbus_sbuscfg[NSBUSCFG]; /* SBus configuration control */
        !            69: };