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mkclock_hb.c revision 1.4 
      1 /*	$NetBSD: mkclock_hb.c,v 1.4 2002/10/02 04:40:08 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/param.h>
     40 #include <sys/kernel.h>
     41 #include <sys/systm.h>
     42 #include <sys/device.h>
     43 
     44 #include <machine/cpu.h>
     45 #include <machine/bus.h>
     46 
     47 #include <dev/clock_subr.h>
     48 #include <dev/ic/mk48txxreg.h>
     49 
     50 #include <news68k/news68k/clockvar.h>
     51 
     52 #include <news68k/dev/hbvar.h>
     53 
     54 int	mkclock_hb_match __P((struct device *, struct cfdata  *, void *));
     55 void	mkclock_hb_attach __P((struct device *, struct device *, void *));
     56 
     57 CFATTACH_DECL(mkclock_hb, sizeof(struct device),
     58     mkclock_hb_match, mkclock_hb_attach, NULL, NULL);
     59 
     60 extern struct cfdriver mkclock_cd;
     61 
     62 int
     63 mkclock_hb_match(parent, cf, aux)
     64 	struct device *parent;
     65 	struct cfdata *cf;
     66 	void *aux;
     67 {
     68 	struct hb_attach_args *ha = aux;
     69 	static int mkclock_hb_matched;
     70 
     71 	/* Only one clock, please. */
     72 	if (mkclock_hb_matched)
     73 		return (0);
     74 
     75 	if (strcmp(ha->ha_name, mkclock_cd.cd_name))
     76 		return (0);
     77 
     78 	ha->ha_size = MK48T02_CLKSZ;
     79 
     80 	mkclock_hb_matched = 1;
     81 
     82 	return 1;
     83 }
     84 
     85 void
     86 mkclock_hb_attach(parent, self, aux)
     87 	struct device *parent, *self;
     88 	void *aux;
     89 {
     90 	struct hb_attach_args *ha = aux;
     91 	bus_space_tag_t bst = ha->ha_bust;
     92 	bus_space_handle_t bsh;
     93 	todr_chip_handle_t handle;
     94 
     95 	if (bus_space_map(bst, (bus_addr_t)ha->ha_address, ha->ha_size,
     96 	    0, &bsh) != 0)
     97 		printf("can't map device space\n");
     98 
     99 	handle = mk48txx_attach(bst, bsh, "mk48t02", 1900, NULL, NULL);
    100 	if (handle == NULL)
    101 		panic("can't attach tod clock");
    102 
    103 	printf("\n");
    104 
    105 	handle->bus_cookie = NULL;
    106 	handle->todr_setwen = NULL;
    107 
    108         todclock_config(handle);
    109 }
    110