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/rmi/uart_bus_xlr_iodi.c

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    1 /*-
    2  * Copyright (c) 2006 Raza Microelectronics
    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  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   17  * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
   18  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   20  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   21  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: stable/8/sys/mips/rmi/uart_bus_xlr_iodi.c 215938 2010-11-27 12:26:40Z jchandra $");
   29 
   30 #include <sys/param.h>
   31 #include <sys/systm.h>
   32 #include <sys/bus.h>
   33 #include <sys/kernel.h>
   34 #include <sys/module.h>
   35 #include <sys/lock.h>
   36 #include <sys/mutex.h>
   37 
   38 #include <machine/bus.h>
   39 #include <sys/rman.h>
   40 #include <machine/resource.h>
   41 #include <mips/rmi/iomap.h>
   42 #include <dev/uart/uart.h>
   43 #include <dev/uart/uart_bus.h>
   44 #include <dev/uart/uart_cpu.h>
   45 
   46 static int uart_iodi_probe(device_t dev);
   47 
   48 static device_method_t uart_iodi_methods[] = {
   49         /* Device interface */
   50         DEVMETHOD(device_probe, uart_iodi_probe),
   51         DEVMETHOD(device_attach, uart_bus_attach),
   52         DEVMETHOD(device_detach, uart_bus_detach),
   53         {0, 0}
   54 };
   55 
   56 static driver_t uart_iodi_driver = {
   57         uart_driver_name,
   58         uart_iodi_methods,
   59         sizeof(struct uart_softc),
   60 };
   61 
   62 
   63 extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
   64 static int
   65 uart_iodi_probe(device_t dev)
   66 {
   67         struct uart_softc *sc;
   68         sc = device_get_softc(dev);
   69         sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
   70         sc->sc_class = &uart_ns8250_class;
   71         bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
   72         sc->sc_sysdev->bas.bst = rmi_bus_space;
   73         sc->sc_sysdev->bas.bsh = MIPS_PHYS_TO_KSEG1(XLR_UART0ADDR);
   74         sc->sc_bas.bst = rmi_bus_space;
   75         sc->sc_bas.bsh = MIPS_PHYS_TO_KSEG1(XLR_UART0ADDR);
   76         /* regshft = 2, rclk = 66000000, rid = 0, chan = 0 */
   77         return (uart_bus_probe(dev, 2, 66000000, 0, 0));
   78 }
   79 
   80 DRIVER_MODULE(uart, iodi, uart_iodi_driver, uart_devclass, 0, 0);

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