FreeBSD/Linux Kernel Cross Reference
sys/mips/rt305x/uart_cpu_rt305x.c

     /*-
      * Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org>
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $Id$
     */
    /*
     * Skeleton of this file was based on respective code for ARM
     * code written by Olivier Houchard.
     */
    /*
     * XXXMIPS: This file is hacked from arm/... . XXXMIPS here means this file is
     * experimental and was written for MIPS32 port.
     */
    #include "opt_uart.h"
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/bus.h>
    #include <sys/cons.h>
    
    #include <machine/bus.h>
    
    #include <dev/uart/uart.h>
    #include <dev/uart/uart_cpu.h>
    
    #include <mips/rt305x/rt305xreg.h>
    
    extern struct uart_class uart_rt305x_uart_class;
    bus_space_tag_t uart_bus_space_io;
    bus_space_tag_t uart_bus_space_mem;
    
    int
    uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
    {
    
            return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
    }
    
    int
    uart_cpu_getdev(int devtype, struct uart_devinfo *di)
    {
            di->ops = uart_getops(&uart_rt305x_uart_class);
            di->bas.chan = 0;
            di->bas.bst = mips_bus_space_generic;
            di->bas.regshft = 2;
            di->bas.rclk = SYSTEM_CLOCK;
            di->baudrate = 115200;
            di->databits = 8;
            di->stopbits = 1;
    
            di->parity = UART_PARITY_NONE;
    
            uart_bus_space_io = NULL;
            uart_bus_space_mem = mips_bus_space_generic;
            di->bas.bsh = MIPS_PHYS_TO_KSEG1(UARTLITE_BASE);
            return (0);
    }

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