scc_bfe_quicc.c

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    1 /*-
    2  * Copyright (c) 2006 Marcel Moolenaar
    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  *
    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 ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD$");
   29 
   30 #include <sys/param.h>
   31 #include <sys/systm.h>
   32 #include <sys/bus.h>
   33 #include <sys/conf.h>
   34 #include <sys/kernel.h>
   35 #include <sys/module.h>
   36 
   37 #include <dev/quicc/quicc_bus.h>
   38 
   39 #include <machine/bus.h>
   40 #include <sys/rman.h>
   41 #include <machine/resource.h>
   42 
   43 #include <dev/scc/scc_bfe.h>
   44 
   45 static int
   46 scc_quicc_probe(device_t dev)
   47 {
   48         device_t parent;
   49         struct scc_softc *sc;
   50         uintptr_t devtype, rclk;
   51         int error;
   52 
   53         parent = device_get_parent(dev);
   54 
   55         error = BUS_READ_IVAR(parent, dev, QUICC_IVAR_DEVTYPE, &devtype);
   56         if (error)
   57                 return (error);
   58         if (devtype != QUICC_DEVTYPE_SCC)
   59                 return (ENXIO);
   60 
   61         device_set_desc(dev, "QUICC quad channel SCC");
   62 
   63         sc = device_get_softc(dev);
   64         sc->sc_class = &scc_quicc_class;
   65         if (BUS_READ_IVAR(parent, dev, QUICC_IVAR_BRGCLK, &rclk))
   66                 rclk = 0;
   67         return (scc_bfe_probe(dev, 0, rclk, 0));
   68 }
   69 
   70 static int
   71 scc_quicc_attach(device_t dev)
   72 {
   73 
   74         return (scc_bfe_attach(dev, 0));
   75 }
   76 
   77 static device_method_t scc_quicc_methods[] = {
   78         /* Device interface */
   79         DEVMETHOD(device_probe,         scc_quicc_probe),
   80         DEVMETHOD(device_attach,        scc_quicc_attach),
   81         DEVMETHOD(device_detach,        scc_bfe_detach),
   82 
   83         DEVMETHOD(bus_alloc_resource,   scc_bus_alloc_resource),
   84         DEVMETHOD(bus_release_resource, scc_bus_release_resource),
   85         DEVMETHOD(bus_get_resource,     scc_bus_get_resource),
   86         DEVMETHOD(bus_read_ivar,        scc_bus_read_ivar),
   87         DEVMETHOD(bus_setup_intr,       scc_bus_setup_intr),
   88         DEVMETHOD(bus_teardown_intr,    scc_bus_teardown_intr),
   89 
   90         DEVMETHOD_END
   91 };
   92 
   93 static driver_t scc_quicc_driver = {
   94         scc_driver_name,
   95         scc_quicc_methods,
   96         sizeof(struct scc_softc),
   97 };
   98 
   99 DRIVER_MODULE(scc, quicc, scc_quicc_driver, scc_devclass, NULL, NULL);

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FreeBSD/Linux Kernel Cross Reference sys/dev/scc/scc_bfe_quicc.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/scc/scc_bfe_quicc.c