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/adm5120/uart_cpu_adm5120.c

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    1 /*-
    2  * Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org>
    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 AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER 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  * $Id$
   27  */
   28 /*
   29  * Skeleton of this file was based on respective code for ARM
   30  * code written by Olivier Houchard.
   31  */
   32 /*
   33  * XXXMIPS: This file is hacked from arm/... . XXXMIPS here means this file is
   34  * experimental and was written for MIPS32 port.
   35  */
   36 #include "opt_uart.h"
   37 
   38 #include <sys/cdefs.h>
   39 __FBSDID("$FreeBSD: releng/9.0/sys/mips/adm5120/uart_cpu_adm5120.c 202175 2010-01-12 21:36:08Z imp $");
   40 
   41 #include <sys/param.h>
   42 #include <sys/systm.h>
   43 #include <sys/bus.h>
   44 #include <sys/cons.h>
   45 
   46 #include <machine/bus.h>
   47 
   48 #include <dev/uart/uart.h>
   49 #include <dev/uart/uart_cpu.h>
   50 
   51 #include <mips/adm5120/adm5120reg.h>
   52 
   53 extern struct uart_class uart_adm5120_uart_class;
   54 bus_space_tag_t uart_bus_space_io;
   55 bus_space_tag_t uart_bus_space_mem;
   56 
   57 int
   58 uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
   59 {
   60 
   61         return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
   62 }
   63 
   64 int
   65 uart_cpu_getdev(int devtype, struct uart_devinfo *di)
   66 {
   67 
   68         di->ops = uart_getops(&uart_adm5120_uart_class);
   69         di->bas.chan = 0;
   70         di->bas.bst = mips_bus_space_generic;
   71         di->bas.regshft = 0;
   72         di->bas.rclk = 0;
   73         di->baudrate = 115200;
   74         di->databits = 8;
   75         di->stopbits = 1;
   76         di->parity = UART_PARITY_NONE;
   77 
   78         uart_bus_space_io = 0;
   79         uart_bus_space_mem = mips_bus_space_generic;
   80         di->bas.bsh = MIPS_PHYS_TO_KSEG1(ADM5120_BASE_UART0);
   81 
   82         return (0);
   83 }

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