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/i8134x/obio.c

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    1 /*      $NetBSD: obio.c,v 1.11 2003/07/15 00:25:05 lukem Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
    5  * All rights reserved.
    6  *
    7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  * 3. All advertising materials mentioning features or use of this software
   18  *    must display the following acknowledgement:
   19  *      This product includes software developed for the NetBSD Project by
   20  *      Wasabi Systems, Inc.
   21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
   22  *    or promote products derived from this software without specific prior
   23  *    written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
   26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
   29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   35  * POSSIBILITY OF SUCH DAMAGE.
   36  */
   37 
   38 /*
   39  * On-board device autoconfiguration support for Intel IQ80321
   40  * evaluation boards.
   41  */
   42 
   43 #include <sys/cdefs.h>
   44 __FBSDID("$FreeBSD: releng/10.4/sys/arm/xscale/i8134x/obio.c 278727 2015-02-13 22:32:02Z ian $");
   45 
   46 #include <sys/param.h>
   47 #include <sys/systm.h>
   48 #include <sys/bus.h>
   49 #include <sys/kernel.h>
   50 #include <sys/module.h>
   51 #include <sys/rman.h>
   52 #include <sys/malloc.h>
   53 
   54 #include <machine/bus.h>
   55 
   56 #include <arm/xscale/i8134x/i81342reg.h>
   57 #include <arm/xscale/i8134x/obiovar.h>
   58 
   59 bus_space_tag_t obio_bs_tag;
   60 
   61 static int
   62 obio_probe(device_t dev)
   63 {
   64         return (0);
   65 }
   66 
   67 static int
   68 obio_attach(device_t dev)
   69 {
   70         struct obio_softc *sc = device_get_softc(dev);
   71 
   72         obio_bs_tag = arm_base_bs_tag;
   73         sc->oba_st = obio_bs_tag;
   74         sc->oba_rman.rm_type = RMAN_ARRAY;
   75         sc->oba_rman.rm_descr = "OBIO I/O";
   76         if (rman_init(&sc->oba_rman) != 0 ||
   77             rman_manage_region(&sc->oba_rman,
   78             IOP34X_UART0_VADDR, IOP34X_UART1_VADDR + 0x40) != 0)
   79                 panic("obio_attach: failed to set up I/O rman");
   80         sc->oba_irq_rman.rm_type = RMAN_ARRAY;
   81         sc->oba_irq_rman.rm_descr = "OBIO IRQ";
   82         if (rman_init(&sc->oba_irq_rman) != 0 ||
   83             rman_manage_region(&sc->oba_irq_rman, ICU_INT_UART0, ICU_INT_UART1) != 0)
   84                 panic("obio_attach: failed to set up IRQ rman");
   85         device_add_child(dev, "uart", 0);
   86         device_add_child(dev, "uart", 1);
   87         bus_generic_probe(dev);
   88         bus_generic_attach(dev);
   89         return (0);
   90 }
   91 
   92 static struct resource *
   93 obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
   94     u_long start, u_long end, u_long count, u_int flags)
   95 {
   96         struct resource *rv;
   97         struct rman *rm;
   98         bus_space_tag_t bt = NULL;
   99         bus_space_handle_t bh = 0;
  100         struct obio_softc *sc = device_get_softc(bus);
  101         int unit = device_get_unit(child);
  102 
  103         switch (type) {
  104         case SYS_RES_IRQ:
  105                 rm = &sc->oba_irq_rman;
  106                 if (unit == 0)
  107                         start = end = ICU_INT_UART0;
  108                 else
  109                         start = end = ICU_INT_UART1;
  110                 break;
  111         case SYS_RES_MEMORY:
  112                 return (NULL);
  113         case SYS_RES_IOPORT:
  114                 rm = &sc->oba_rman;
  115                 bt = sc->oba_st;
  116                 if (unit == 0) {
  117                         bh = IOP34X_UART0_VADDR;
  118                         start = bh;
  119                         end = IOP34X_UART1_VADDR;
  120                 } else {
  121                         bh = IOP34X_UART1_VADDR;
  122                         start = bh;
  123                         end = start + 0x40;
  124                 }
  125                 break;
  126         default:
  127                 return (NULL);
  128         }
  129 
  130 
  131         rv = rman_reserve_resource(rm, start, end, count, flags, child);
  132         if (rv == NULL)
  133                 return (NULL);
  134         if (type == SYS_RES_IRQ)
  135                 return (rv);
  136         rman_set_rid(rv, *rid);
  137         rman_set_bustag(rv, bt);
  138         rman_set_bushandle(rv, bh);
  139         
  140         return (rv);
  141 
  142 }
  143 
  144 static int
  145 obio_activate_resource(device_t bus, device_t child, int type, int rid,
  146     struct resource *r)
  147 {
  148         return (0);
  149 }
  150 static device_method_t obio_methods[] = {
  151         DEVMETHOD(device_probe, obio_probe),
  152         DEVMETHOD(device_attach, obio_attach),
  153 
  154         DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
  155         DEVMETHOD(bus_activate_resource, obio_activate_resource),
  156         DEVMETHOD(bus_setup_intr,       bus_generic_setup_intr),
  157         DEVMETHOD(bus_teardown_intr,    bus_generic_teardown_intr),
  158 
  159         {0, 0},
  160 };
  161 
  162 static driver_t obio_driver = {
  163         "obio",
  164         obio_methods,
  165         sizeof(struct obio_softc),
  166 };
  167 static devclass_t obio_devclass;
  168 
  169 DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0);

Cache object: b0b7986496a8dd175a26ed41ece5eeee


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