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/dev/uart/uart_bus_mbus.c

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    1 /*-
    2  * Copyright (C) 2007 MARVELL INTERNATIONAL LTD.
    3  * All rights reserved.
    4  *
    5  * Developed by Semihalf.
    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  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of MARVELL nor the names of contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __FBSDID("$FreeBSD: releng/8.4/sys/dev/uart/uart_bus_mbus.c 183840 2008-10-13 20:07:13Z raj $");
   34 
   35 #include <sys/param.h>
   36 #include <sys/systm.h>
   37 #include <sys/bus.h>
   38 #include <sys/conf.h>
   39 #include <sys/kernel.h>
   40 #include <sys/module.h>
   41 
   42 #include <machine/bus.h>
   43 #include <sys/rman.h>
   44 #include <machine/resource.h>
   45 
   46 #include <dev/uart/uart.h>
   47 #include <dev/uart/uart_bus.h>
   48 #include <dev/uart/uart_cpu.h>
   49 
   50 #include <arm/mv/mvvar.h>
   51 
   52 static int uart_mbus_probe(device_t dev);
   53 
   54 static device_method_t uart_mbus_methods[] = {
   55         /* Device interface */
   56         DEVMETHOD(device_probe,         uart_mbus_probe),
   57         DEVMETHOD(device_attach,        uart_bus_attach),
   58         DEVMETHOD(device_detach,        uart_bus_detach),
   59         { 0, 0 }
   60 };
   61 
   62 static driver_t uart_mbus_driver = {
   63         uart_driver_name,
   64         uart_mbus_methods,
   65         sizeof(struct uart_softc),
   66 };
   67 
   68 static int
   69 uart_mbus_probe(device_t dev)
   70 {
   71         struct  uart_softc *sc;
   72         int     status;
   73 
   74         sc = device_get_softc(dev);
   75         sc->sc_class = &uart_ns8250_class;
   76         status = uart_bus_probe(dev, 2, get_tclk(), 0, 0);
   77 
   78         return(status);
   79 }
   80 
   81 DRIVER_MODULE(uart, mbus, uart_mbus_driver, uart_devclass, 0, 0);

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