uart_cpu_ixp425.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    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("$FreeBSD$");
   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/ixp425/ixp425reg.h>
   40 #include <arm/xscale/ixp425/ixp425var.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         return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
   49 }
   50 
   51 int
   52 uart_cpu_getdev(int devtype, struct uart_devinfo *di)
   53 {
   54         uint32_t i, ivar, vaddr;
   55 
   56         /*
   57          * Scan the hints. The IXP425 only have 2 serial ports, so only
   58          * scan them.
   59          */
   60         for (i = 0; i < 2; i++) {
   61                 if (resource_int_value("uart", i, "flags", &ivar))
   62                         continue;
   63                 if (devtype == UART_DEV_CONSOLE && !UART_FLAGS_CONSOLE(ivar))
   64                         continue;
   65                 if (devtype == UART_DEV_DBGPORT && !UART_FLAGS_DBGPORT(ivar))
   66                         continue;
   67                 /*
   68                  * We have a possible device. Make sure it's enabled and
   69                  * that we have an I/O port.
   70                  */
   71                 if (resource_int_value("uart", i, "disabled", &ivar) == 0 &&
   72                     ivar != 0)
   73                         continue;
   74                 if (resource_int_value("uart", i, "addr", &ivar) != 0 ||
   75                     ivar == 0)
   76                         continue;
   77                 /* Got it. Fill in the instance and return it. */
   78                 di->ops = uart_getops(&uart_ns8250_class);
   79                 di->bas.chan = 0;
   80                 di->bas.bst = &ixp425_a4x_bs_tag;
   81                 di->bas.regshft = 0;
   82                 di->bas.rclk = IXP425_UART_FREQ;
   83                 di->baudrate = 115200;
   84                 di->databits = 8;
   85                 di->stopbits = 1;
   86                 di->parity = UART_PARITY_NONE;
   87                 uart_bus_space_io = NULL;
   88                 uart_bus_space_mem = &ixp425_a4x_bs_tag;
   89 
   90                 getvbase(ivar, IXP425_REG_SIZE, &vaddr);
   91                 di->bas.bsh = vaddr;
   92                 return (0);
   93         }
   94 
   95         return (ENXIO);
   96 }

Cache object: 362e3a3185aa2d4039e8d2d63d8637bc

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/arm/xscale/ixp425/uart_cpu_ixp425.c

FreeBSD/Linux Kernel Cross Reference
sys/arm/xscale/ixp425/uart_cpu_ixp425.c