sys/arch/evbmips/adm5120/mainbus.c

   1 /* $NetBSD: mainbus.c,v 1.7 2005/06/28 18:29:59 drochner Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or
   8  * without modification, are permitted provided that the following
   9  * conditions are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above
  13  *    copyright notice, this list of conditions and the following
  14  *    disclaimer in the documentation and/or other materials provided
  15  *    with the distribution.
  16  * 3. The names of the authors may not be used to endorse or promote
  17  *    products derived from this software without specific prior
  18  *    written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY
  21  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  23  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
  25  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
  27  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  29  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  30  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  31  * OF SUCH DAMAGE.
  32  */
  33 /*
  34  * Copyright 2002 Wasabi Systems, Inc.
  35  * All rights reserved.
  36  *
  37  * Written by Simon Burge for Wasabi Systems, Inc.
  38  *
  39  * Redistribution and use in source and binary forms, with or without
  40  * modification, are permitted provided that the following conditions
  41  * are met:
  42  * 1. Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  * 2. Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in the
  46  *    documentation and/or other materials provided with the distribution.
  47  * 3. All advertising materials mentioning features or use of this software
  48  *    must display the following acknowledgement:
  49  *      This product includes software developed for the NetBSD Project by
  50  *      Wasabi Systems, Inc.
  51  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  52  *    or promote products derived from this software without specific prior
  53  *    written permission.
  54  *
  55  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  56  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  57  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  58  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  59  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  60  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  61  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  62  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  63  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  64  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  65  * POSSIBILITY OF SUCH DAMAGE.
  66  */
  67
  68 #include <sys/cdefs.h>
  69 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.7 2005/06/28 18:29:59 drochner Exp $");
  70
  71 #include <sys/param.h>
  72 #include <sys/systm.h>
  73 #include <sys/device.h>
  74
  75 #include <machine/bus.h>
  76
  77 #include <mips/cache.h>
  78 #include <mips/cpuregs.h>
  79
  80 #include <mips/adm5120/include/adm5120reg.h>
  81 #include <mips/adm5120/include/adm5120var.h>
  82 #include <mips/adm5120/include/adm5120_mainbusvar.h>
  83
  84 #include "locators.h"
  85
  86 static int      mainbus_match(struct device *, struct cfdata *, void *);
  87 static void     mainbus_attach(struct device *, struct device *, void *);
  88 static int      mainbus_print(void *, const char *);
  89
  90 CFATTACH_DECL(mainbus, sizeof(struct mainbus_softc),
  91     mainbus_match, mainbus_attach, NULL, NULL);
  92
  93 /* There can be only one. */
  94 int     mainbus_found;
  95
  96 struct mainbusdev {
  97         const char *md_name;
  98 };
  99
 100 struct mainbusdev mainbusdevs[] = {
 101         {"cpu"          },
 102         {"obio"         },
 103         {"extio"        },
 104         {"admpci"       },
 105         {NULL           }
 106 };
 107
 108 static void
 109 mainbus_gpio_attach(struct mainbus_softc *sc)
 110 {
 111         if (bus_space_map(sc->sc_obiot, ADM5120_BASE_SWITCH, 512, 0,
 112                           &sc->sc_gpioh) != 0){
 113                 printf("%s: unable to map switch\n", device_xname(&sc->sc_dev));
 114                 return;
 115         }
 116 #if 0
 117         printf("%s: memcont 0x%08" PRIx32 "\n", device_xname(&sc->sc_dev),
 118             bus_space_read_4(sc->sc_obiot, sc->sc_gpioh, 0x1c));
 119 #endif
 120         sc->sc_gpio = admgpio_attach(sc);
 121 }
 122
 123
 124 static int
 125 mainbus_match(struct device *parent, struct cfdata *match, void *aux)
 126 {
 127         return !mainbus_found;
 128 }
 129
 130 static void
 131 mainbus_attach(struct device *parent, struct device *self, void *aux)
 132 {
 133         struct mainbus_softc *sc = (struct mainbus_softc *)self;
 134         struct mainbus_attach_args ma;
 135         struct mainbusdev *md;
 136         struct adm5120_config *admc = &adm5120_configuration;
 137
 138         mainbus_found = 1;
 139         printf("\n");
 140
 141         sc->sc_obiot = &admc->obio_space;
 142
 143         mainbus_gpio_attach(sc);
 144
 145         ma.ma_dmat = &admc->obio_dmat;
 146         ma.ma_obiot = sc->sc_obiot;
 147         ma.ma_gpioh = sc->sc_gpioh;
 148         ma.ma_gpio = sc->sc_gpio;
 149         ma.ma_gpio_offset = -1;
 150         ma.ma_gpio_mask = 0x0;
 151
 152         for (md = mainbusdevs; md->md_name != NULL; md++) {
 153                 ma.ma_name = md->md_name;
 154                 config_found_ia(self, "mainbus", &ma, mainbus_print);
 155         }
 156 }
 157
 158 static int
 159 mainbus_print(void *aux, const char *pnp)
 160 {
 161         struct mainbus_attach_args *ma = aux;
 162
 163         if (pnp != NULL)
 164                 aprint_normal("%s at %s", ma->ma_name, pnp);
 165
 166         return UNCONF;
 167 }