FreeBSD/Linux Kernel Cross Reference
sys/powerpc/mpc85xx/pci_mpc85xx_pcib.c

     /*-
      * Copyright 2015 Justin Hibbits
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * From: FreeBSD: src/sys/powerpc/mpc85xx/pci_ocp.c,v 1.9 2010/03/23 23:46:28 marcel
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/ktr.h>
    #include <sys/sockio.h>
    #include <sys/mbuf.h>
    #include <sys/malloc.h>
    #include <sys/kernel.h>
    #include <sys/module.h>
    #include <sys/socket.h>
    #include <sys/queue.h>
    #include <sys/bus.h>
    #include <sys/lock.h>
    #include <sys/mutex.h>
    #include <sys/rman.h>
    #include <sys/endian.h>
    
    #include <vm/vm.h>
    #include <vm/pmap.h>
    
    #include <dev/ofw/openfirm.h>
    #include <dev/ofw/ofw_pci.h>
    #include <dev/ofw/ofw_bus.h>
    #include <dev/ofw/ofw_bus_subr.h>
    
    #include <dev/pci/pcivar.h>
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcib_private.h>
    
    #include <machine/intr_machdep.h>
    
    #include "pcib_if.h"
    
    DECLARE_CLASS(ofw_pcib_pci_driver);
    
    struct fsl_pcib_softc {
            /*
             * This is here so that we can use pci bridge methods, too - the
             * generic routines only need the dev, secbus and subbus members
             * filled.
             *
             * XXX: This should be extracted from ofw_pcib_pci.c, and shared in a
             * header.
             */
            struct pcib_softc       ops_pcib_sc;
            phandle_t               ops_node;
            struct ofw_bus_iinfo    ops_iinfo;
    };
    
    static int
    fsl_pcib_rc_probe(device_t dev)
    {
    
            if (pci_get_vendor(dev) != 0x1957)
                    return (ENXIO);
            if (pci_get_progif(dev) != 0)
                    return (ENXIO);
            if (pci_get_class(dev) != PCIC_PROCESSOR)
                    return (ENXIO);
            if (pci_get_subclass(dev) != PCIS_PROCESSOR_POWERPC)
                    return (ENXIO);
    
            device_set_desc(dev, "MPC85xx Root Complex bridge");
    
            return (BUS_PROBE_DEFAULT);
    }
    
   static device_method_t fsl_pcib_rc_methods[] = {
           DEVMETHOD(device_probe,         fsl_pcib_rc_probe),
           DEVMETHOD_END
   };
   
   DEFINE_CLASS_1(pcib, fsl_pcib_rc_driver, fsl_pcib_rc_methods,
       sizeof(struct fsl_pcib_softc), ofw_pcib_pci_driver);
   EARLY_DRIVER_MODULE(rcpcib, pci, fsl_pcib_rc_driver, 0, 0, BUS_PASS_BUS);

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