132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
/* $NetBSD: gbus.c,v 1.4 1997/04/07 23:41:05 cgd Exp $ */
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/*
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* Copyright (c) 1997 by Matthew Jacob
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* NASA AMES Research Center.
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* 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 immediately at the beginning of the file, without modification,
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* 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. 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 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 AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* 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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/*
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* Autoconfiguration and support routines for the Gbus: the internal
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* bus on AlphaServer CPU modules.
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*/
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#include <machine/options.h> /* Config options headers */
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#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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__KERNEL_RCSID(0, "$NetBSD: gbus.c,v 1.4 1997/04/07 23:41:05 cgd Exp $");
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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/autoconf.h>
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#include <machine/rpb.h>
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#include <machine/pte.h>
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#include <alpha/tlsb/tlsbreg.h>
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#include <alpha/tlsb/tlsbvar.h>
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extern int cputype;
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#define KV(_addr) ((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr)))
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struct gbus_softc {
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struct device sc_dev;
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int sc_tlsbnode; /* node on the TurboLaser */
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};
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static int gbusmatch __P((struct device *, struct cfdata *, void *));
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static void gbusattach __P((struct device *, struct device *, void *));
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struct cfattach gbus_ca = {
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sizeof(struct gbus_softc), gbusmatch, gbusattach
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};
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struct cfdriver gbus_cd = {
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NULL, "gbus", DV_DULL,
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};
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static int gbusprint __P((void *, const char *));
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void gbus_intr_establish __P((struct confargs *, int (*)(void *), void *));
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void gbus_intr_disestablish __P((struct confargs *));
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caddr_t gbus_cvtaddr __P((struct confargs *));
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int gbus_matchname __P((struct confargs *, char *));
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static int
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gbusprint(aux, cp)
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void *aux;
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const char *cp;
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{
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return (QUIET);
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}
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static int
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gbusmatch(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 tlsb_dev_attach_args *ta = aux;
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extern struct cfdriver tlsb_cd;
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/*
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* Make sure we're looking for a Gbus.
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* Right now, only Gbus could be a
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* child of a TLSB CPU Node.
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*/
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if (TLDEV_ISCPU(ta->ta_dtype) &&
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parent->dv_cfdata->cf_driver == &tlsb_cd)
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return (1);
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return (0);
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}
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static void
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gbusattach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct confargs nca;
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struct gbus_softc *sc = (struct gbus_softc *)self;
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struct tlsb_dev_attach_args *ta = aux;
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printf("\n");
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sc->sc_dev = *self;
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sc->sc_tlsbnode = ta->ta_node;
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/* Attach the clock. */
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nca.ca_name = "mcclock";
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nca.ca_slot = -1;
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nca.ca_offset = 0x20000000;
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nca.ca_bus = NULL;
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if (!config_found(self, &nca, gbusprint))
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printf("no clock on %s\n", self->dv_xname);
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}
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