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: releng/10.4/sys/arm/xscale/i80321/obio.c 278727 2015-02-13 22:32:02Z ian $");
   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 bus_space_tag_t obio_bs_tag;
   62 
   63 int     obio_probe(device_t);
   64 int     obio_attach(device_t);
   65 
   66 int
   67 obio_probe(device_t dev)
   68 {
   69         return (0);
   70 }
   71 
   72 int
   73 obio_attach(device_t dev)
   74 {
   75         struct obio_softc *sc = device_get_softc(dev);
   76 
   77         obio_bs_tag = arm_base_bs_tag;
   78         sc->oba_st = obio_bs_tag;
   79         sc->oba_addr = IQ80321_OBIO_BASE;
   80         sc->oba_size = IQ80321_OBIO_SIZE;
   81         sc->oba_rman.rm_type = RMAN_ARRAY;
   82         sc->oba_rman.rm_descr = "OBIO I/O";
   83         if (rman_init(&sc->oba_rman) != 0 ||
   84             rman_manage_region(&sc->oba_rman,
   85             sc->oba_addr, sc->oba_addr + sc->oba_size) != 0)
   86                 panic("obio_attach: failed to set up I/O rman");
   87         sc->oba_irq_rman.rm_type = RMAN_ARRAY;
   88         sc->oba_irq_rman.rm_descr = "OBIO IRQ";
   89         if (rman_init(&sc->oba_irq_rman) != 0 ||
   90             rman_manage_region(&sc->oba_irq_rman, 28, 28) != 0)
   91                 panic("obio_attach: failed to set up IRQ rman");
   92         device_add_child(dev, "uart", 0);
   93         bus_generic_probe(dev);
   94         bus_generic_attach(dev);
   95         return (0);
   96 }
   97 
   98 static struct resource *
   99 obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
  100     u_long start, u_long end, u_long count, u_int flags)
  101 {
  102         struct resource *rv;
  103         struct rman *rm;
  104         bus_space_tag_t bt = NULL;
  105         bus_space_handle_t bh = 0;
  106         struct obio_softc *sc = device_get_softc(bus);
  107 
  108         switch (type) {
  109         case SYS_RES_IRQ:
  110                 rm = &sc->oba_irq_rman;
  111                 break;
  112         case SYS_RES_MEMORY:
  113                 return (NULL);
  114         case SYS_RES_IOPORT:
  115                 rm = &sc->oba_rman;
  116                 bt = sc->oba_st;
  117                 bh = sc->oba_addr;
  118                 start = bh;
  119                 break;
  120         default:
  121                 return (NULL);
  122         }
  123 
  124 
  125         rv = rman_reserve_resource(rm, start, end, count, flags, child);
  126         if (rv == NULL)
  127                 return (NULL);
  128         if (type == SYS_RES_IRQ)
  129                 return (rv);
  130         rman_set_rid(rv, *rid);
  131         rman_set_bustag(rv, bt);
  132         rman_set_bushandle(rv, bh);
  133         
  134         return (rv);
  135 
  136 }
  137 
  138 static int
  139 obio_activate_resource(device_t bus, device_t child, int type, int rid,
  140     struct resource *r)
  141 {
  142         return (0);
  143 }
  144 static device_method_t obio_methods[] = {
  145         DEVMETHOD(device_probe, obio_probe),
  146         DEVMETHOD(device_attach, obio_attach),
  147 
  148         DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
  149         DEVMETHOD(bus_activate_resource, obio_activate_resource),
  150         DEVMETHOD(bus_setup_intr,       bus_generic_setup_intr),
  151         DEVMETHOD(bus_teardown_intr,    bus_generic_teardown_intr),
  152 
  153         {0, 0},
  154 };
  155 
  156 static driver_t obio_driver = {
  157         "obio",
  158         obio_methods,
  159         sizeof(struct obio_softc),
  160 };
  161 static devclass_t obio_devclass;
  162 
  163 DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0);

Cache object: e74b6c8bc0abfd5bbe861ada8437c614


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