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/mips/sentry5/siba_mips.c

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    1 /*-
    2  * Copyright (c) 2007 Bruce M. Simpson.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 /*
   28  * Child driver for MIPS 3302 core.
   29  * Interrupt controller registers live here. Interrupts may not be routed
   30  * to the MIPS core if they are masked out.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/8.1/sys/mips/sentry5/siba_mips.c 178173 2008-04-13 07:44:55Z imp $");
   35 
   36 #include <sys/param.h>
   37 #include <sys/systm.h>
   38 #include <sys/bus.h>
   39 #include <sys/kernel.h>
   40 #include <sys/module.h>
   41 #include <sys/rman.h>
   42 #include <sys/malloc.h>
   43 
   44 #include <machine/bus.h>
   45 
   46 #include <dev/siba/sibavar.h>
   47 #include <dev/siba/sibareg.h>
   48 #include <dev/siba/siba_ids.h>
   49 
   50 static int      siba_mips_attach(device_t);
   51 static int      siba_mips_probe(device_t);
   52 
   53 static int
   54 siba_mips_probe(device_t dev)
   55 {
   56 
   57         if (siba_get_vendor(dev) == SIBA_VID_BROADCOM &&
   58             siba_get_device(dev) == SIBA_DEVID_MIPS_3302) {
   59                 device_set_desc(dev, "MIPS 3302 processor");
   60                 return (BUS_PROBE_DEFAULT);
   61         }
   62 
   63         return (ENXIO);
   64 }
   65 
   66 struct siba_mips_softc {
   67         void *notused;
   68 };
   69 
   70 static int
   71 siba_mips_attach(device_t dev)
   72 {
   73         //struct siba_mips_softc *sc = device_get_softc(dev);
   74         struct resource *mem;
   75         int rid;
   76 
   77         /*
   78          * Allocate the resources which the parent bus has already
   79          * determined for us.
   80          * TODO: interrupt routing
   81          */
   82 #define MIPS_MEM_RID 0x20
   83         rid = MIPS_MEM_RID;
   84         mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
   85             RF_ACTIVE);
   86         if (mem == NULL) {
   87                 device_printf(dev, "unable to allocate memory\n");
   88                 return (ENXIO);
   89         }
   90 #if 0
   91         device_printf(dev, "start %08lx size %04lx\n",
   92             rman_get_start(mem), rman_get_size(mem));
   93 #endif
   94 
   95         return (0);
   96 }
   97 
   98 static device_method_t siba_mips_methods[] = {
   99         /* Device interface */
  100         DEVMETHOD(device_attach,        siba_mips_attach),
  101         DEVMETHOD(device_probe,         siba_mips_probe),
  102 
  103         {0, 0},
  104 };
  105 
  106 static driver_t siba_mips_driver = {
  107         "siba_mips",
  108         siba_mips_methods,
  109         sizeof(struct siba_softc),
  110 };
  111 static devclass_t siba_mips_devclass;
  112 
  113 DRIVER_MODULE(siba_mips, siba, siba_mips_driver, siba_mips_devclass, 0, 0);

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