157 lines
4.8 KiB
C
157 lines
4.8 KiB
C
/* $NetBSD: simba.c,v 1.1 1999/06/04 13:42:15 mrg Exp $ */
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/*
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* Copyright (c) 1996, 1998 Christopher G. Demetriou. All rights reserved.
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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 Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* from: NetBSD: ppb.c,v 1.18 1998/06/08 06:55:57 thorpej Exp
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*/
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/*
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* this is a copy of the pci/ppb driver slightly modified to
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* work with the SUNW,simba PCI bus.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#define _SPARC_BUS_DMA_PRIVATE
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#include <machine/bus.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcidevs.h>
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#include <sparc64/dev/iommureg.h>
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#include <sparc64/dev/iommuvar.h>
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#include <sparc64/dev/psychoreg.h>
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#include <sparc64/dev/psychovar.h>
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#include <sparc64/dev/simbareg.h>
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static int simba_match __P((struct device *, struct cfdata *, void *));
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static void simba_attach __P((struct device *, struct device *, void *));
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static int simba_print __P((void *, const char *pnp));
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extern struct sparc_pci_chipset sparc_simba_pci_chipset;
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struct cfattach simba_ca = {
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sizeof(struct device), simba_match, simba_attach
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};
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static int
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simba_match(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_VENDOR(pa->pa_id) == PCI_VENDOR_SUN &&
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_SIMBA)
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return (1);
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return (0);
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}
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/*
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* XXX
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*
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* this code depends on the parent PCI bus's parent being the sabre!
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*/
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static void
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simba_attach(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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struct psycho_softc *sc = (struct psycho_softc *)parent->dv_parent; /* XXX */
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struct psycho_pbm *pp;
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pci_chipset_tag_t pc = pa->pa_pc;
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struct pcibus_attach_args pba;
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pcireg_t busdata;
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char devinfo[256];
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pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
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printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
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busdata = pci_conf_read(pc, pa->pa_tag, PPB_REG_BUSINFO);
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/*
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* this uses the generic PCI bus value's, rather than the `bus-range'
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* property; that's cuz this code was stolen from dev/pci/ppb.c. we
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* might need to change to that yet. getting the prom-node might be
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* fun, but we *do* have pa->pa_pc->cookie->...
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*
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* perhaps it would be all better to probe the simba's and get all
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* the info ourselves.. we'll see.
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*/
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switch (PPB_BUSINFO_SECONDARY(busdata)) {
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default:
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printf("%s: not configured by system firmware (bus %d)\n",
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self->dv_xname, PPB_BUSINFO_SECONDARY(busdata));
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return;
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case 1: /* PCI B */
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pp = sc->sc_simba_b;
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break;
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case 2: /* PCI A */
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pp = sc->sc_simba_a;
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break;
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}
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/*
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* attach the PCI bus than hangs off of it. we use the
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* per-psycho values.
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*/
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pba.pba_busname = "pci";
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pba.pba_iot = pp->pp_iot;
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pba.pba_memt = pp->pp_memt;
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pba.pba_dmat = pp->pp_dmat;
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pba.pba_pc = pp->pp_pc;
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pba.pba_flags = pp->pp_flags;
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pba.pba_bus = PPB_BUSINFO_SECONDARY(busdata);
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pba.pba_intrswiz = pa->pa_intrswiz;
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pba.pba_intrtag = pa->pa_intrtag;
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config_found(self, &pba, simba_print);
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}
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static int
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simba_print(aux, p)
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void *aux;
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const char *p;
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{
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struct pcibus_attach_args *pba = aux;
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/* only PCIs can attach to sabre's; easy. */
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if (p)
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printf("pci at %s", p);
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printf(" bus %d", pba->pba_bus);
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return (UNCONF);
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}
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