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/nlm/uart_bus_xlp_iodi.c

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    1 /*-
    2  * Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
    3  * reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions are
    7  * 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
   13  *    the documentation and/or other materials provided with the
   14  *    distribution.
   15  * 
   16  * THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   19  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE 
   20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   26  * THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * NETLOGIC_BSD */
   29 
   30 #include <sys/cdefs.h>
   31 __FBSDID("$FreeBSD: stable/9/sys/mips/nlm/uart_bus_xlp_iodi.c 225394 2011-09-05 10:45:29Z jchandra $");
   32 
   33 #include <sys/param.h>
   34 #include <sys/systm.h>
   35 #include <sys/bus.h>
   36 #include <sys/kernel.h>
   37 #include <sys/module.h>
   38 #include <sys/lock.h>
   39 #include <sys/mutex.h>
   40 #include <sys/rman.h>
   41 
   42 #include <machine/bus.h>
   43 #include <machine/resource.h>
   44 
   45 #include <mips/nlm/hal/haldefs.h>
   46 #include <mips/nlm/hal/iomap.h>
   47 #include <mips/nlm/hal/uart.h>
   48 
   49 #include <dev/uart/uart.h>
   50 #include <dev/uart/uart_bus.h>
   51 #include <dev/uart/uart_cpu.h>
   52 
   53 static int uart_iodi_probe(device_t dev);
   54 
   55 static device_method_t uart_iodi_methods[] = {
   56         /* Device interface */
   57         DEVMETHOD(device_probe, uart_iodi_probe),
   58         DEVMETHOD(device_attach, uart_bus_attach),
   59         DEVMETHOD(device_detach, uart_bus_detach),
   60         {0, 0}
   61 };
   62 
   63 static driver_t uart_iodi_driver = {
   64         uart_driver_name,
   65         uart_iodi_methods,
   66         sizeof(struct uart_softc),
   67 };
   68 
   69 extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
   70 
   71 static int
   72 uart_iodi_probe(device_t dev)
   73 {
   74         struct uart_softc *sc;
   75 
   76         sc = device_get_softc(dev);
   77         sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
   78         sc->sc_class = &uart_ns8250_class;
   79         bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
   80         sc->sc_sysdev->bas.bst = rmi_bus_space;
   81         sc->sc_sysdev->bas.bsh = nlm_get_uart_regbase(0, 0);
   82         sc->sc_bas.bst = rmi_bus_space;
   83         sc->sc_bas.bsh = nlm_get_uart_regbase(0, 0);
   84         /* regshft = 2, rclk = 66000000, rid = 0, chan = 0 */
   85         return (uart_bus_probe(dev, 2, 133000000, 0, 0));
   86 }
   87 
   88 DRIVER_MODULE(uart, iodi, uart_iodi_driver, uart_devclass, 0, 0);

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