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Annotation of sys/arch/sparc/dev/sbusreg.h, Revision 1.1.1.1

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: };