1 /* $OpenBSD: sbusreg.h,v 1.4 2003/06/02 23:27:54 millert 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 }; 70