1dd8b98704
1) create new pnpbus psuedo bus. This is a bus layer that reads the PNP tree from the residual data and allows attachment of devices with the information given therein. Based loosely on i386/pnpbios. 2) Delete obio bus, as with the pnp bus we no longer need it. 3) Create a number of functions that gather the information needed to set up the machine from the residual data, rather than hardcoding it in. 4) Create a quirk table for machines that are bizzare enough that the residual information is not sufficient. (such as the 6015) 5) Using the data gathering routines and the quirk table, delete struct platform completely from the architecture. Prep is now almost completely dynamic in figuring out the machine it is running on and setting things up properly. 6) Add a wdc_pnpbus driver which attaches the wdc controller found on some 7248's and the 6015. This replaces the now-defunct wdc_obio. 7) delete all the mot_* and ibm_* files, and replace them with a single ibm_machdep.c which only contains the quirk functions for the 6015 and the 6050. 8) Modify GENERIC to work with all this stuff.
175 lines
4.8 KiB
C
175 lines
4.8 KiB
C
/* $NetBSD: pcib.c,v 1.15 2006/03/09 20:17:27 garbled Exp $ */
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/*-
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* Copyright (c) 1996, 1998 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 REGENTS OR CONTRIBUTORS BE
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* 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: pcib.c,v 1.15 2006/03/09 20:17:27 garbled 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/isa/isavar.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 "isa.h"
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#include "isadma.h"
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int pcibmatch(struct device *, struct cfdata *, void *);
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void pcibattach(struct device *, struct device *, void *);
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struct pcib_softc {
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struct device sc_dev;
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struct prep_isa_chipset *sc_chipset;
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};
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extern struct prep_isa_chipset prep_isa_chipset;
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CFATTACH_DECL(pcib, sizeof(struct pcib_softc),
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pcibmatch, pcibattach, NULL, NULL);
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void pcib_callback(struct device *);
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int
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pcibmatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct pci_attach_args *pa = aux;
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/*
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* Match PCI-ISA bridge.
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*/
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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_ISA) {
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return (1);
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}
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/*
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* some special cases:
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*/
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switch (PCI_VENDOR(pa->pa_id)) {
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case PCI_VENDOR_INTEL:
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switch (PCI_PRODUCT(pa->pa_id)) {
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case PCI_PRODUCT_INTEL_SIO:
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/*
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* The Intel SIO identifies itself as a
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* miscellaneous prehistoric.
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*/
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return (1);
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}
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break;
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}
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return (0);
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}
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void
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pcibattach(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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u_int32_t v;
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int lvlmask = 0;
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/*
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* Just print out a description and defer configuration
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* until all PCI devices have been attached.
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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 (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
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v = pci_conf_read(pa->pa_pc, pa->pa_tag, 0x40);
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if ((v & 0x20) == 0) {
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printf("%s: PIRQ[0-3] not used\n", self->dv_xname);
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} else {
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v = pci_conf_read(pa->pa_pc, pa->pa_tag, 0x60);
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if ((v & 0x80808080) == 0x80808080) {
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printf("%s: PIRQ[0-3] disabled\n", self->dv_xname);
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} else {
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int i;
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printf("%s:", self->dv_xname);
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for (i = 0; i < 4; i++, v >>= 8) {
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if ((v & 80) == 0 && (v & 0x0f) != 0) {
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printf(" PIRQ[%d]=%d", i, v & 0x0f);
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lvlmask |= (1 << (v & 0x0f));
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}
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}
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printf("\n");
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}
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}
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#if NISA > 0
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/* Initialize interrupt controller */
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init_icu(lvlmask);
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#endif
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config_defer(self, pcib_callback);
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}
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void
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pcib_callback(self)
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struct device *self;
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{
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struct pcib_softc *sc = (struct pcib_softc *)self;
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#if NISA > 0
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struct isabus_attach_args iba;
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/*
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* Attach the ISA bus behind this bridge.
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*/
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memset(&iba, 0, sizeof(iba));
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sc->sc_chipset = &prep_isa_chipset;
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iba.iba_ic = sc->sc_chipset;
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iba.iba_iot = &prep_isa_io_space_tag;
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iba.iba_memt = &prep_isa_mem_space_tag;
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#if NISADMA > 0
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iba.iba_dmat = &isa_bus_dma_tag;
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#endif
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config_found_ia(&sc->sc_dev, "isabus", &iba, isabusprint);
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#endif
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}
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