The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/arm/xscale/i80321/obio.c

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    1 /*      $NetBSD: obio.c,v 1.11 2003/07/15 00:25:05 lukem Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
    5  * All rights reserved.
    6  *
    7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  * 3. All advertising materials mentioning features or use of this software
   18  *    must display the following acknowledgement:
   19  *      This product includes software developed for the NetBSD Project by
   20  *      Wasabi Systems, Inc.
   21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
   22  *    or promote products derived from this software without specific prior
   23  *    written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
   26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
   29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   35  * POSSIBILITY OF SUCH DAMAGE.
   36  */
   37 
   38 /*
   39  * On-board device autoconfiguration support for Intel IQ80321
   40  * evaluation boards.
   41  */
   42 
   43 #include <sys/cdefs.h>
   44 __FBSDID("$FreeBSD$");
   45 
   46 #include <sys/param.h>
   47 #include <sys/systm.h>
   48 #include <sys/bus.h>
   49 #include <sys/kernel.h>
   50 #include <sys/module.h>
   51 #include <sys/rman.h>
   52 #include <sys/malloc.h>
   53 
   54 #include <machine/bus.h>
   55 
   56 #include <arm/xscale/i80321/i80321reg.h>
   57 
   58 #include <arm/xscale/i80321/iq80321reg.h>
   59 #include <arm/xscale/i80321/obiovar.h>
   60 
   61 int     obio_probe(device_t);
   62 int     obio_attach(device_t);
   63 
   64 int
   65 obio_probe(device_t dev)
   66 {
   67         return (0);
   68 }
   69 
   70 int
   71 obio_attach(device_t dev)
   72 {
   73         struct obio_softc *sc = device_get_softc(dev);
   74 
   75         sc->oba_st = &obio_bs_tag;
   76         sc->oba_addr = IQ80321_OBIO_BASE;
   77         sc->oba_size = IQ80321_OBIO_SIZE;
   78         sc->oba_rman.rm_type = RMAN_ARRAY;
   79         sc->oba_rman.rm_descr = "OBIO I/O";
   80         if (rman_init(&sc->oba_rman) != 0 ||
   81             rman_manage_region(&sc->oba_rman,
   82             sc->oba_addr, sc->oba_addr + sc->oba_size) != 0)
   83                 panic("obio_attach: failed to set up I/O rman");
   84         sc->oba_irq_rman.rm_type = RMAN_ARRAY;
   85         sc->oba_irq_rman.rm_descr = "OBIO IRQ";
   86         if (rman_init(&sc->oba_irq_rman) != 0 ||
   87             rman_manage_region(&sc->oba_irq_rman, 28, 28) != 0)
   88                 panic("obio_attach: failed to set up IRQ rman");
   89         device_add_child(dev, "uart", 0);
   90         bus_generic_probe(dev);
   91         bus_generic_attach(dev);
   92         return (0);
   93 }
   94 
   95 static struct resource *
   96 obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
   97     u_long start, u_long end, u_long count, u_int flags)
   98 {
   99         struct resource *rv;
  100         struct rman *rm;
  101         bus_space_tag_t bt = NULL;
  102         bus_space_handle_t bh = 0;
  103         struct obio_softc *sc = device_get_softc(bus);
  104 
  105         switch (type) {
  106         case SYS_RES_IRQ:
  107                 rm = &sc->oba_irq_rman;
  108                 break;
  109         case SYS_RES_MEMORY:
  110                 return (NULL);
  111         case SYS_RES_IOPORT:
  112                 rm = &sc->oba_rman;
  113                 bt = sc->oba_st;
  114                 bh = sc->oba_addr;
  115                 start = bh;
  116                 break;
  117         default:
  118                 return (NULL);
  119         }
  120 
  121 
  122         rv = rman_reserve_resource(rm, start, end, count, flags, child);
  123         if (rv == NULL) 
  124                 return (NULL);
  125         if (type == SYS_RES_IRQ)
  126                 return (rv);
  127         rman_set_rid(rv, *rid);
  128         rman_set_bustag(rv, bt);
  129         rman_set_bushandle(rv, bh);
  130         
  131         return (rv);
  132 
  133 }
  134 
  135 static int
  136 obio_activate_resource(device_t bus, device_t child, int type, int rid,
  137     struct resource *r)
  138 {
  139         return (0);
  140 }
  141 static device_method_t obio_methods[] = {
  142         DEVMETHOD(device_probe, obio_probe),
  143         DEVMETHOD(device_attach, obio_attach),
  144 
  145         DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
  146         DEVMETHOD(bus_activate_resource, obio_activate_resource),
  147         DEVMETHOD(bus_setup_intr,       bus_generic_setup_intr),
  148         DEVMETHOD(bus_teardown_intr,    bus_generic_teardown_intr),
  149 
  150         {0, 0},
  151 };
  152 
  153 static driver_t obio_driver = {
  154         "obio",
  155         obio_methods,
  156         sizeof(struct obio_softc),
  157 };
  158 static devclass_t obio_devclass;
  159 
  160 DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0);

Cache object: 4f960ecb9bb8dde4e1c0f2d9ab4f7bfa


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