scc_bfe_quicc.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2006 Marcel Moolenaar
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  *
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  */
   28 
   29 #include <sys/cdefs.h>
   30 __FBSDID("$FreeBSD$");
   31 
   32 #include <sys/param.h>
   33 #include <sys/systm.h>
   34 #include <sys/bus.h>
   35 #include <sys/conf.h>
   36 #include <sys/kernel.h>
   37 #include <sys/module.h>
   38 
   39 #include <dev/quicc/quicc_bus.h>
   40 
   41 #include <machine/bus.h>
   42 #include <sys/rman.h>
   43 #include <machine/resource.h>
   44 
   45 #include <dev/scc/scc_bfe.h>
   46 
   47 static int
   48 scc_quicc_probe(device_t dev)
   49 {
   50         device_t parent;
   51         struct scc_softc *sc;
   52         uintptr_t devtype, rclk;
   53         int error;
   54 
   55         parent = device_get_parent(dev);
   56 
   57         error = BUS_READ_IVAR(parent, dev, QUICC_IVAR_DEVTYPE, &devtype);
   58         if (error)
   59                 return (error);
   60         if (devtype != QUICC_DEVTYPE_SCC)
   61                 return (ENXIO);
   62 
   63         device_set_desc(dev, "QUICC quad channel SCC");
   64 
   65         sc = device_get_softc(dev);
   66         sc->sc_class = &scc_quicc_class;
   67         if (BUS_READ_IVAR(parent, dev, QUICC_IVAR_BRGCLK, &rclk))
   68                 rclk = 0;
   69         return (scc_bfe_probe(dev, 0, rclk, 0));
   70 }
   71 
   72 static int
   73 scc_quicc_attach(device_t dev)
   74 {
   75 
   76         return (scc_bfe_attach(dev, 0));
   77 }
   78 
   79 static device_method_t scc_quicc_methods[] = {
   80         /* Device interface */
   81         DEVMETHOD(device_probe,         scc_quicc_probe),
   82         DEVMETHOD(device_attach,        scc_quicc_attach),
   83         DEVMETHOD(device_detach,        scc_bfe_detach),
   84 
   85         DEVMETHOD(bus_alloc_resource,   scc_bus_alloc_resource),
   86         DEVMETHOD(bus_release_resource, scc_bus_release_resource),
   87         DEVMETHOD(bus_get_resource,     scc_bus_get_resource),
   88         DEVMETHOD(bus_read_ivar,        scc_bus_read_ivar),
   89         DEVMETHOD(bus_setup_intr,       scc_bus_setup_intr),
   90         DEVMETHOD(bus_teardown_intr,    scc_bus_teardown_intr),
   91 
   92         DEVMETHOD_END
   93 };
   94 
   95 static driver_t scc_quicc_driver = {
   96         scc_driver_name,
   97         scc_quicc_methods,
   98         sizeof(struct scc_softc),
   99 };
  100 
  101 DRIVER_MODULE(scc, quicc, scc_quicc_driver, 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