62 lines
2.9 KiB
C
62 lines
2.9 KiB
C
/* $NetBSD: sbusreg.h,v 1.2 1994/11/20 20:52:26 deraadt Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)sbusreg.h 8.1 (Berkeley) 6/11/93
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*/
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/*
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* Sun-4c S-bus definitions. (Should be made generic!)
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*
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* Sbus slot 0 is not a separate slot; it talks to the onboard I/O devices.
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* It is, however, addressed just like any `real' Sbus.
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*
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* Sbus device addresses are obtained from the FORTH PROMs. They come
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* in `absolute' and `relative' address flavors, so we have to handle both.
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* Relative addresses do *not* include the slot number.
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*/
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#define SBUS_BASE 0xf8000000
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#define SBUS_ADDR(slot, off) (SBUS_BASE + ((slot) << 25) + (off))
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#define SBUS_ABS(a) ((unsigned)(a) >= SBUS_BASE)
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#define SBUS_ABS_TO_SLOT(a) (((a) - SBUS_BASE) >> 25)
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#define SBUS_ABS_TO_OFFSET(a) (((a) - SBUS_BASE) & 0x1ffffff)
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