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: stable/11/sys/arm/xscale/i8134x/obio.c 331890 2018-04-02 22:02:49Z gonzo $");
   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 static int
   60 obio_probe(device_t dev)
   61 {
   62         return (0);
   63 }
   64 
   65 static int
   66 obio_attach(device_t dev)
   67 {
   68         struct obio_softc *sc = device_get_softc(dev);
   69 
   70         sc->oba_st = arm_base_bs_tag;
   71         sc->oba_rman.rm_type = RMAN_ARRAY;
   72         sc->oba_rman.rm_descr = "OBIO I/O";
   73         if (rman_init(&sc->oba_rman) != 0 ||
   74             rman_manage_region(&sc->oba_rman,
   75             IOP34X_UART0_VADDR, IOP34X_UART1_VADDR + 0x40) != 0)
   76                 panic("obio_attach: failed to set up I/O rman");
   77         sc->oba_irq_rman.rm_type = RMAN_ARRAY;
   78         sc->oba_irq_rman.rm_descr = "OBIO IRQ";
   79         if (rman_init(&sc->oba_irq_rman) != 0 ||
   80             rman_manage_region(&sc->oba_irq_rman, ICU_INT_UART0, ICU_INT_UART1) != 0)
   81                 panic("obio_attach: failed to set up IRQ rman");
   82         device_add_child(dev, "uart", 0);
   83         device_add_child(dev, "uart", 1);
   84         bus_generic_probe(dev);
   85         bus_generic_attach(dev);
   86         return (0);
   87 }
   88 
   89 static struct resource *
   90 obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
   91     rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
   92 {
   93         struct resource *rv;
   94         struct rman *rm;
   95         bus_space_tag_t bt = NULL;
   96         bus_space_handle_t bh = 0;
   97         struct obio_softc *sc = device_get_softc(bus);
   98         int unit = device_get_unit(child);
   99 
  100         switch (type) {
  101         case SYS_RES_IRQ:
  102                 rm = &sc->oba_irq_rman;
  103                 if (unit == 0)
  104                         start = end = ICU_INT_UART0;
  105                 else
  106                         start = end = ICU_INT_UART1;
  107                 break;
  108         case SYS_RES_MEMORY:
  109                 return (NULL);
  110         case SYS_RES_IOPORT:
  111                 rm = &sc->oba_rman;
  112                 bt = sc->oba_st;
  113                 if (unit == 0) {
  114                         bh = IOP34X_UART0_VADDR;
  115                         start = bh;
  116                         end = IOP34X_UART1_VADDR;
  117                 } else {
  118                         bh = IOP34X_UART1_VADDR;
  119                         start = bh;
  120                         end = start + 0x40;
  121                 }
  122                 break;
  123         default:
  124                 return (NULL);
  125         }
  126 
  127 
  128         rv = rman_reserve_resource(rm, start, end, count, flags, child);
  129         if (rv == NULL)
  130                 return (NULL);
  131         if (type == SYS_RES_IRQ)
  132                 return (rv);
  133         rman_set_rid(rv, *rid);
  134         rman_set_bustag(rv, bt);
  135         rman_set_bushandle(rv, bh);
  136         
  137         return (rv);
  138 
  139 }
  140 
  141 static int
  142 obio_activate_resource(device_t bus, device_t child, int type, int rid,
  143     struct resource *r)
  144 {
  145         return (0);
  146 }
  147 static device_method_t obio_methods[] = {
  148         DEVMETHOD(device_probe, obio_probe),
  149         DEVMETHOD(device_attach, obio_attach),
  150 
  151         DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
  152         DEVMETHOD(bus_activate_resource, obio_activate_resource),
  153         DEVMETHOD(bus_setup_intr,       bus_generic_setup_intr),
  154         DEVMETHOD(bus_teardown_intr,    bus_generic_teardown_intr),
  155 
  156         {0, 0},
  157 };
  158 
  159 static driver_t obio_driver = {
  160         "obio",
  161         obio_methods,
  162         sizeof(struct obio_softc),
  163 };
  164 static devclass_t obio_devclass;
  165 
  166 DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0);

Cache object: 00eb771ccb5a585a9e535f83b99633ca


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