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/i8134x/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/i8134x/i81342reg.h>
   57 #include <arm/xscale/i8134x/obiovar.h>
   58 
   59 
   60 static int
   61 obio_probe(device_t dev)
   62 {
   63         return (0);
   64 }
   65 
   66 static int
   67 obio_attach(device_t dev)
   68 {
   69         struct obio_softc *sc = device_get_softc(dev);
   70 
   71         sc->oba_st = &obio_bs_tag;
   72         sc->oba_rman.rm_type = RMAN_ARRAY;
   73         sc->oba_rman.rm_descr = "OBIO I/O";
   74         if (rman_init(&sc->oba_rman) != 0 ||
   75             rman_manage_region(&sc->oba_rman,
   76             IOP34X_UART0_VADDR, IOP34X_UART1_VADDR + 0x40) != 0)
   77                 panic("obio_attach: failed to set up I/O rman");
   78         sc->oba_irq_rman.rm_type = RMAN_ARRAY;
   79         sc->oba_irq_rman.rm_descr = "OBIO IRQ";
   80         if (rman_init(&sc->oba_irq_rman) != 0 ||
   81             rman_manage_region(&sc->oba_irq_rman, ICU_INT_UART0, ICU_INT_UART1) != 0)
   82                 panic("obio_attach: failed to set up IRQ rman");
   83         device_add_child(dev, "uart", 0);
   84         device_add_child(dev, "uart", 1);
   85         bus_generic_probe(dev);
   86         bus_generic_attach(dev);
   87         return (0);
   88 }
   89 
   90 static struct resource *
   91 obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
   92     u_long start, u_long end, u_long count, u_int flags)
   93 {
   94         struct resource *rv;
   95         struct rman *rm;
   96         bus_space_tag_t bt = NULL;
   97         bus_space_handle_t bh = 0;
   98         struct obio_softc *sc = device_get_softc(bus);
   99         int unit = device_get_unit(child);
  100 
  101         switch (type) {
  102         case SYS_RES_IRQ:
  103                 rm = &sc->oba_irq_rman;
  104                 if (unit == 0)
  105                         start = end = ICU_INT_UART0;
  106                 else
  107                         start = end = ICU_INT_UART1;
  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                 if (unit == 0) {
  115                         bh = IOP34X_UART0_VADDR;
  116                         start = bh;
  117                         end = IOP34X_UART1_VADDR;
  118                 } else {
  119                         bh = IOP34X_UART1_VADDR;
  120                         start = bh;
  121                         end = start + 0x40;
  122                 }
  123                 break;
  124         default:
  125                 return (NULL);
  126         }
  127 
  128 
  129         rv = rman_reserve_resource(rm, start, end, count, flags, child);
  130         if (rv == NULL) 
  131                 return (NULL);
  132         if (type == SYS_RES_IRQ)
  133                 return (rv);
  134         rman_set_rid(rv, *rid);
  135         rman_set_bustag(rv, bt);
  136         rman_set_bushandle(rv, bh);
  137         
  138         return (rv);
  139 
  140 }
  141 
  142 static int
  143 obio_activate_resource(device_t bus, device_t child, int type, int rid,
  144     struct resource *r)
  145 {
  146         return (0);
  147 }
  148 static device_method_t obio_methods[] = {
  149         DEVMETHOD(device_probe, obio_probe),
  150         DEVMETHOD(device_attach, obio_attach),
  151 
  152         DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
  153         DEVMETHOD(bus_activate_resource, obio_activate_resource),
  154         DEVMETHOD(bus_setup_intr,       bus_generic_setup_intr),
  155         DEVMETHOD(bus_teardown_intr,    bus_generic_teardown_intr),
  156 
  157         {0, 0},
  158 };
  159 
  160 static driver_t obio_driver = {
  161         "obio",
  162         obio_methods,
  163         sizeof(struct obio_softc),
  164 };
  165 static devclass_t obio_devclass;
  166 
  167 DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0);

Cache object: 1aa53d1e0483534e8ba64ba59e12df75


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