46289e1fef
which bustype should be attached with a specific call to config_found() (from a "mainbus" or a bus bridge). Do it for isa/eisa/mca and pci/agp for now. These buses all attach to an mi interface attribute "isabus", "eisabus" etc., and the autoconf framework now allows to specify an interface attribute on config_found() and config_search(), which limits the search of matching config data to these which attach to that specific attribute. So we basically have to call config_found_ia(..., "foobus", ...) where such a bus is attached. As a consequence, where a "mainbus" or alike also attaches other devices (eg CPUs) which do not attach to a specific attribute yet, we need at least pass an attribute name (different from "foobus") so that the foo bus is not found at these places. This made some minor changes necessary which are not obviously related to the mentioned buses.
125 lines
3.9 KiB
C
125 lines
3.9 KiB
C
/* $NetBSD: pchb.c,v 1.4 2004/08/30 15:05:16 drochner Exp $ */
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/*-
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* Copyright (c) 1996, 1998, 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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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 NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pchb.c,v 1.4 2004/08/30 15:05:16 drochner Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcidevs.h>
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#include <arch/i386/pci/pchbvar.h>
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#include "rnd.h"
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#define PCISET_BRIDGETYPE_MASK 0x3
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#define PCISET_TYPE_COMPAT 0x1
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#define PCISET_TYPE_AUX 0x2
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#define PCISET_BUSCONFIG_REG 0x48
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#define PCISET_BRIDGE_NUMBER(reg) (((reg) >> 8) & 0xff)
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#define PCISET_PCI_BUS_NUMBER(reg) (((reg) >> 16) & 0xff)
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/* XXX should be in dev/ic/i82443reg.h */
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#define I82443BX_SDRAMC_REG 0x76
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/* XXX should be in dev/ic/i82424{reg.var}.h */
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#define I82424_CPU_BCTL_REG 0x53
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#define I82424_PCI_BCTL_REG 0x54
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#define I82424_BCTL_CPUMEM_POSTEN 0x01
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#define I82424_BCTL_CPUPCI_POSTEN 0x02
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#define I82424_BCTL_PCIMEM_BURSTEN 0x01
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#define I82424_BCTL_PCI_BURSTEN 0x02
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int pchbmatch __P((struct device *, struct cfdata *, void *));
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void pchbattach __P((struct device *, struct device *, void *));
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CFATTACH_DECL(pchb, sizeof(struct pchb_softc),
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pchbmatch, pchbattach, NULL, NULL);
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int
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pchbmatch(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct pci_attach_args *pa = aux;
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if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE &&
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PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_HOST) {
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return (1);
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}
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return (0);
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}
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void
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pchbattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct pci_attach_args *pa = aux;
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char devinfo[256];
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printf("\n");
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/*
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* Print out a description, and configure certain chipsets which
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* have auxiliary PCI buses.
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*/
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pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
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printf("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo,
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PCI_REVISION(pa->pa_class));
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switch (PCI_VENDOR(pa->pa_id)) {
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/* Nothing yet */
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default:
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break;
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}
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}
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