sys/arch/news68k/dev/mkclock_hb.c

   1 /*      $NetBSD: mkclock_hb.c,v 1.14 2008/03/29 05:47:53 tsutsui 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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: mkclock_hb.c,v 1.14 2008/03/29 05:47:53 tsutsui Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/kernel.h>
  37 #include <sys/systm.h>
  38 #include <sys/device.h>
  39
  40 #include <machine/cpu.h>
  41 #include <machine/bus.h>
  42
  43 #include <dev/clock_subr.h>
  44 #include <dev/ic/mk48txxreg.h>
  45 #include <dev/ic/mk48txxvar.h>
  46
  47 #include <news68k/news68k/clockvar.h>
  48
  49 #include <news68k/dev/hbvar.h>
  50
  51 #include "ioconf.h"
  52
  53 static int  mkclock_hb_match(device_t, cfdata_t, void *);
  54 static void mkclock_hb_attach(device_t, device_t, void *);
  55
  56 CFATTACH_DECL_NEW(mkclock_hb, sizeof(struct mk48txx_softc),
  57     mkclock_hb_match, mkclock_hb_attach, NULL, NULL);
  58
  59 static int
  60 mkclock_hb_match(device_t parent, cfdata_t cf, void *aux)
  61 {
  62         struct hb_attach_args *ha = aux;
  63         static int mkclock_hb_matched;
  64
  65         /* Only one clock, please. */
  66         if (mkclock_hb_matched)
  67                 return 0;
  68
  69         if (strcmp(ha->ha_name, mkclock_cd.cd_name))
  70                 return 0;
  71
  72         ha->ha_size = MK48T02_CLKSZ;
  73
  74         mkclock_hb_matched = 1;
  75
  76         return 1;
  77 }
  78
  79 static void
  80 mkclock_hb_attach(device_t parent, device_t self, void *aux)
  81 {
  82         struct mk48txx_softc *sc = device_private(self);
  83         struct hb_attach_args *ha = aux;
  84
  85         sc->sc_dev = self;
  86         sc->sc_bst = ha->ha_bust;
  87         if (bus_space_map(sc->sc_bst, (bus_addr_t)ha->ha_address, ha->ha_size,
  88             0, &sc->sc_bsh) != 0)
  89                 aprint_error("can't map device space\n");
  90
  91         sc->sc_model = "mk48t02";
  92         sc->sc_year0 = 1900;
  93         mk48txx_attach(sc);
  94
  95         aprint_normal("\n");
  96 }