bi_mainbus.c revision 1.4 
1/*	$NetBSD: bi_mainbus.c,v 1.4 2000/07/26 11:53:30 ragge Exp $	   */
2/*
3 * Copyright (c) 1999 Ludd, University of Lule}, Sweden.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *      This product includes software developed at Ludd, University of
17 *      Lule}, Sweden and its contributors.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/param.h>
34#include <sys/device.h>
35
36#define	_VAX_BUS_DMA_PRIVATE
37#include <machine/bus.h>
38#include <machine/nexus.h>
39#include <machine/sid.h>
40#include <machine/scb.h>
41#include <machine/cpu.h>
42
43#include <dev/bi/bivar.h>
44#include <dev/bi/bireg.h>
45
46static	int bi_mainbus_match __P((struct device *, struct cfdata *, void *));
47static	void bi_mainbus_attach __P((struct device *, struct device *, void *));
48
49struct	cfattach bi_mainbus_ca = {
50	sizeof(struct bi_softc), bi_mainbus_match, bi_mainbus_attach
51};
52
53extern	struct vax_bus_space vax_mem_bus_space;
54extern	struct vax_bus_dma_tag vax_bus_dma_tag;
55
56static int
57bi_mainbus_match(struct device *parent, struct cfdata *vcf, void *aux)
58{
59	if (vax_bustype == VAX_BIBUS)
60		return 1;
61	return 0;
62}
63
64static void
65bi_mainbus_attach(struct device *parent, struct device *self, void *aux)
66{
67	struct bi_softc *sc = (void *)self;
68
69	/*
70	 * Fill in bus specific data.
71	 */
72	sc->sc_addr = (bus_addr_t)BI_BASE(0, 0);
73	sc->sc_iot = &vax_mem_bus_space; /* No special I/O handling */
74	sc->sc_dmat = &vax_bus_dma_tag;	/* No special DMA handling either */
75	sc->sc_intcpu = 1 << mfpr(PR_BINID);
76	sc->sc_lastiv = 256; /* Lowest available vector address */
77
78	bi_attach(sc);
79}
80