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mkclock_hb.c revision 1.6 
      1 /*	$NetBSD: mkclock_hb.c,v 1.6 2003/07/15 02:59:26 lukem 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/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: mkclock_hb.c,v 1.6 2003/07/15 02:59:26 lukem Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/kernel.h>
     44 #include <sys/systm.h>
     45 #include <sys/device.h>
     46 
     47 #include <machine/cpu.h>
     48 #include <machine/bus.h>
     49 
     50 #include <dev/clock_subr.h>
     51 #include <dev/ic/mk48txxreg.h>
     52 
     53 #include <news68k/news68k/clockvar.h>
     54 
     55 #include <news68k/dev/hbvar.h>
     56 
     57 int  mkclock_hb_match(struct device *, struct cfdata  *, void *);
     58 void mkclock_hb_attach(struct device *, struct device *, void *);
     59 
     60 CFATTACH_DECL(mkclock_hb, sizeof(struct device),
     61     mkclock_hb_match, mkclock_hb_attach, NULL, NULL);
     62 
     63 extern struct cfdriver mkclock_cd;
     64 
     65 int
     66 mkclock_hb_match(parent, cf, aux)
     67 	struct device *parent;
     68 	struct cfdata *cf;
     69 	void *aux;
     70 {
     71 	struct hb_attach_args *ha = aux;
     72 	static int mkclock_hb_matched;
     73 
     74 	/* Only one clock, please. */
     75 	if (mkclock_hb_matched)
     76 		return (0);
     77 
     78 	if (strcmp(ha->ha_name, mkclock_cd.cd_name))
     79 		return (0);
     80 
     81 	ha->ha_size = MK48T02_CLKSZ;
     82 
     83 	mkclock_hb_matched = 1;
     84 
     85 	return 1;
     86 }
     87 
     88 void
     89 mkclock_hb_attach(parent, self, aux)
     90 	struct device *parent, *self;
     91 	void *aux;
     92 {
     93 	struct hb_attach_args *ha = aux;
     94 	bus_space_tag_t bst = ha->ha_bust;
     95 	bus_space_handle_t bsh;
     96 	todr_chip_handle_t handle;
     97 
     98 	if (bus_space_map(bst, (bus_addr_t)ha->ha_address, ha->ha_size,
     99 	    0, &bsh) != 0)
    100 		printf("can't map device space\n");
    101 
    102 	handle = mk48txx_attach(bst, bsh, "mk48t02", 1900, NULL, NULL);
    103 	if (handle == NULL)
    104 		panic("can't attach tod clock");
    105 
    106 	printf("\n");
    107 
    108 	handle->bus_cookie = NULL;
    109 	handle->todr_setwen = NULL;
    110 
    111         todclock_config(handle);
    112 }
    113