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/arm/xscale/pxa/uart_cpu_pxa.c

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    1 /*-
    2  * Copyright (c) 2003 Marcel Moolenaar
    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  *
    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 the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: releng/9.2/sys/arm/xscale/pxa/uart_cpu_pxa.c 179595 2008-06-06 05:08:09Z benno $");
   29 
   30 #include <sys/param.h>
   31 #include <sys/systm.h>
   32 #include <sys/bus.h>
   33 #include <sys/cons.h>
   34 #include <machine/bus.h>
   35 
   36 #include <dev/uart/uart.h>
   37 #include <dev/uart/uart_cpu.h>
   38 
   39 #include <arm/xscale/pxa/pxavar.h>
   40 #include <arm/xscale/pxa/pxareg.h>
   41 
   42 bus_space_tag_t uart_bus_space_io;
   43 bus_space_tag_t uart_bus_space_mem;
   44 
   45 int
   46 uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
   47 {
   48 
   49         return (b1->bsh == b2->bsh ? 1 : 0);
   50 }
   51 
   52 int
   53 uart_cpu_getdev(int devtype, struct uart_devinfo *di)
   54 {
   55 
   56         di->ops = uart_getops(&uart_ns8250_class);
   57         di->bas.chan = 0;
   58         di->bas.bst = obio_tag;
   59         di->bas.regshft = 2;
   60         di->bas.rclk = PXA2X0_COM_FREQ;
   61         di->baudrate = 115200;
   62         di->databits = 8;
   63         di->stopbits = 1;
   64         di->parity = UART_PARITY_NONE;
   65         uart_bus_space_mem = obio_tag;
   66         uart_bus_space_io = NULL;
   67         di->bas.bsh = PXA2X0_FFUART_BASE;
   68         return (0);
   69 }

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