uart_cpu_ec.c

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    1 /*-
    2  * Copyright (C) 2009 Yohanes Nugroho <yohanes@gmail.com>
    3  * All rights reserved.
    4  *
    5  * Developed by Semihalf.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``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 PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  */
   28 
   29 #include "opt_uart.h"
   30 
   31 #include <sys/cdefs.h>
   32 __FBSDID("$FreeBSD$");
   33 
   34 #include <sys/param.h>
   35 #include <sys/systm.h>
   36 #include <sys/bus.h>
   37 #include <sys/cons.h>
   38 
   39 #include <machine/bus.h>
   40 
   41 #include <dev/uart/uart.h>
   42 #include <dev/uart/uart_cpu.h>
   43 
   44 #include <sys/rman.h>
   45 
   46 #include <arm/econa/econa_reg.h>
   47 #include <arm/econa/econa_var.h>
   48 
   49 bus_space_tag_t uart_bus_space_io;
   50 bus_space_tag_t uart_bus_space_mem;
   51 
   52 int
   53 uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
   54 {
   55 
   56         return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
   57 }
   58 
   59 int
   60 uart_cpu_getdev(int devtype, struct uart_devinfo *di)
   61 {
   62         struct uart_class *class = &uart_ns8250_class;
   63 
   64         di->ops = uart_getops(class);
   65         di->bas.chan = 0;
   66         di->bas.bst = obio_tag;
   67 
   68         if (bus_space_map(di->bas.bst, ECONA_IO_BASE + ECONA_UART_BASE,
   69             ECONA_UART_SIZE,
   70             0, &di->bas.bsh) != 0) {
   71                 return (ENXIO);
   72         }
   73 
   74         di->baudrate = 0;
   75         di->bas.regshft = EC_UART_REGSHIFT;
   76         di->bas.rclk = EC_UART_CLOCK ;
   77         di->databits = 8;
   78         di->stopbits = 1;
   79         di->parity = UART_PARITY_NONE;
   80         uart_bus_space_mem = obio_tag;
   81         uart_bus_space_io = NULL;
   82 
   83         return (0);
   84 }

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FreeBSD/Linux Kernel Cross Reference sys/arm/econa/uart_cpu_ec.c

FreeBSD/Linux Kernel Cross Reference
sys/arm/econa/uart_cpu_ec.c