115 lines
3.9 KiB
C
115 lines
3.9 KiB
C
/* $NetBSD: mcclock_jazzio.c,v 1.1 2001/06/13 15:02:15 soda Exp $ */
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/* $OpenBSD: clock_mc.c,v 1.9 1998/03/16 09:38:26 pefo Exp $ */
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/* NetBSD: clock_mc.c,v 1.2 1995/06/28 04:30:30 cgd Exp */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department and Ralph Campbell.
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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 University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR 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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* from: Utah Hdr: clock.c 1.18 91/01/21
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*
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* @(#)clock.c 8.1 (Berkeley) 6/10/93
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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/device.h>
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#include <machine/autoconf.h>
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#include <machine/bus.h>
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#include <dev/ic/mc146818reg.h>
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#include <arc/dev/mcclockvar.h>
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#include <arc/jazz/jazziovar.h>
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#include <arc/jazz/mcclock_jazziovar.h>
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int mcclock_jazzio_match __P((struct device *, struct cfdata *, void *));
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void mcclock_jazzio_attach __P((struct device *, struct device *, void *));
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struct cfattach mcclock_jazzio_ca = {
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sizeof(struct mcclock_softc),
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mcclock_jazzio_match, mcclock_jazzio_attach
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};
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struct mcclock_jazzio_config *mcclock_jazzio_conf = NULL;
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int mcclock_jazzio_found = 0;
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int
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mcclock_jazzio_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 jazzio_attach_args *ja = aux;
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/* make sure that we're looking for this type of device. */
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if (strcmp(ja->ja_name, "dallas_rtc") != 0)
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return (0);
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if (mcclock_jazzio_found)
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return (0);
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return (1);
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}
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void
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mcclock_jazzio_attach(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 mcclock_softc *sc = (struct mcclock_softc *)self;
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struct jazzio_attach_args *ja = aux;
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if (mcclock_jazzio_conf == NULL)
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panic("mcclock_jazzio_conf isn't initialized");
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sc->sc_iot = ja->ja_bust;
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if (bus_space_map(sc->sc_iot,
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ja->ja_addr, mcclock_jazzio_conf->mjc_iosize, 0, &sc->sc_ioh)) {
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printf(": unable to map I/O space\n");
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return;
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}
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mcclock_attach(sc, &mcclock_jazzio_conf->mjc_mcbusfns, 80);
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/* Turn interrupts off, just in case. */
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mc146818_write(sc, MC_REGB, MC_REGB_BINARY | MC_REGB_24HR);
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mcclock_jazzio_found = 1;
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}
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