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/broadcom/siba_nexus.c

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    1 /*-
    2  * Copyright (c) 2015-2016 Landon Fuller <landon@freebsd.org>
    3  * Copyright (c) 2007 Bruce M. Simpson.
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD: releng/12.0/sys/mips/broadcom/siba_nexus.c 326102 2017-11-22 20:27:46Z landonf $");
   30 
   31 #include <sys/param.h>
   32 #include <sys/kernel.h>
   33 #include <sys/bus.h>
   34 #include <sys/module.h>
   35 
   36 #include <machine/bus.h>
   37 #include <sys/rman.h>
   38 #include <machine/resource.h>
   39 
   40 #include <dev/bhnd/bhnd_ids.h>
   41 
   42 #include <dev/bhnd/siba/sibareg.h>
   43 #include <dev/bhnd/siba/sibavar.h>
   44 
   45 #include "bcm_machdep.h"
   46 #include "bcm_mipsvar.h"
   47 
   48 #include "bhnd_nexusvar.h"
   49 
   50 /*
   51  * Supports siba(4) attachment to a MIPS nexus bus.
   52  * 
   53  * Derived from Bruce M. Simpson' original siba(4) driver.
   54  */
   55 
   56 _Static_assert(SIBA_MAX_INTR == BCM_MIPS_NINTR, "SIBA incompatible with "
   57     "generic NINTR");
   58 
   59 static int
   60 siba_nexus_probe(device_t dev)
   61 {
   62         int error;
   63 
   64         if (bcm_get_platform()->cid.chip_type != BHND_CHIPTYPE_SIBA)
   65                 return (ENXIO);
   66 
   67         if ((error = siba_probe(dev)) > 0)
   68                 return (error);
   69 
   70         /* Set device description */
   71         bhnd_set_default_bus_desc(dev, &bcm_get_platform()->cid);
   72 
   73         return (BUS_PROBE_SPECIFIC);
   74 }
   75 
   76 static int
   77 siba_nexus_attach(device_t dev)
   78 {
   79         int error;
   80 
   81         /* Perform initial attach and enumerate our children. */
   82         if ((error = siba_attach(dev)))
   83                 return (error);
   84 
   85         /* Delegate remainder to standard bhnd method implementation */
   86         if ((error = bhnd_generic_attach(dev)))
   87                 goto failed;
   88 
   89         return (0);
   90 
   91 failed:
   92         siba_detach(dev);
   93         return (error);
   94 }
   95 
   96 static device_method_t siba_nexus_methods[] = {
   97         /* Device interface */
   98         DEVMETHOD(device_probe,                 siba_nexus_probe),
   99         DEVMETHOD(device_attach,                siba_nexus_attach),
  100 
  101         DEVMETHOD_END
  102 };
  103 
  104 DEFINE_CLASS_2(bhnd, siba_nexus_driver, siba_nexus_methods,
  105     sizeof(struct siba_softc), bhnd_nexus_driver, siba_driver);
  106 
  107 EARLY_DRIVER_MODULE(siba_nexus, nexus, siba_nexus_driver, bhnd_devclass, 0, 0,
  108     BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);

Cache object: 07c4e94d736fe71aad6d34b500112f46


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