xref: /src/sys/arch/evbarm/iq80310/com_obio.c

/*-
 * Copyright (c) 2001 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Matt Thomas <matt@3am-software.com>.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/termios.h>

#include <machine/autoconf.h>

#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>

static int com_obio_match (struct device *, struct cfdata *, void *);
static void com_obio_attach (struct device *, struct device *, void *);

struct cfattach com_obio_ca = {
	sizeof(struct com_softc), com_obio_match, com_obio_attach
};

extern struct cfdriver com_cd;

static int
com_obio_match(struct device *parent, struct cfdata *cf, void *aux)
{
	struct obio_attach_args *oa = aux;
	return strcmp(com_cd.cd_name, oa->oa_name) == 0 &&
	    cf->obiocf_instance == oa->oa_instance;
}

static void
com_obio_attach(struct device *parent, struct device *self, void *aux)
{
	struct obio_attach_args *oa = aux;
	struct com_softc *sc = (struct com_softc *) self;
	int error;

	KASSERT(oa->oa_nregions > 0);

	sc->sc_iot = oa->oa_memt;
	sc->sc_iobase = oa->oa_addrs[0];
	sc->sc_frequency = COM_FREQ;
	error = bus_space_map(sc->sc_iot, oa->oa_addrs[0],
	    oa->oa_lens[0], 0, &sc->sc_ioh);

	if (error) {
		printf(": failed to map registers: %d\n", error);
		return;
	}

	com_attach_subr(sc);
	obio_intr_establish(oa, comintr, sc);
}