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/mv/bus_space.c

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    1 /*-
    2  * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
    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  * 3. Neither the name of MARVELL nor the names of contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __FBSDID("$FreeBSD: releng/9.1/sys/arm/mv/bus_space.c 209131 2010-06-13 13:28:53Z raj $");
   34 
   35 #include <sys/param.h>
   36 #include <sys/systm.h>
   37 #include <sys/bus.h>
   38 #include <sys/kernel.h>
   39 #include <sys/malloc.h>
   40 
   41 #include <machine/bus.h>
   42 
   43 /*
   44  * Bus space functions for Marvell SoC family
   45  */
   46 
   47 /* Prototypes for all the bus_space structure functions */
   48 bs_protos(generic);
   49 bs_protos(generic_armv4);
   50 
   51 /*
   52  * The bus space tag.  This is constant for all instances, so
   53  * we never have to explicitly "create" it.
   54  */
   55 static struct bus_space _base_tag = {
   56         /* cookie */
   57         (void *) 0,
   58 
   59         /* mapping/unmapping */
   60         generic_bs_map,
   61         generic_bs_unmap,
   62         generic_bs_subregion,
   63 
   64         /* allocation/deallocation */
   65         generic_bs_alloc,
   66         generic_bs_free,
   67 
   68         /* barrier */
   69         generic_bs_barrier,
   70 
   71         /* read (single) */
   72         generic_bs_r_1,
   73         generic_armv4_bs_r_2,
   74         generic_bs_r_4,
   75         NULL,
   76 
   77         /* read multiple */
   78         generic_bs_rm_1,
   79         generic_armv4_bs_rm_2,
   80         generic_bs_rm_4,
   81         NULL,
   82 
   83         /* read region */
   84         generic_bs_rr_1,
   85         generic_armv4_bs_rr_2,
   86         generic_bs_rr_4,
   87         NULL,
   88 
   89         /* write (single) */
   90         generic_bs_w_1,
   91         generic_armv4_bs_w_2,
   92         generic_bs_w_4,
   93         NULL,
   94 
   95         /* write multiple */
   96         generic_bs_wm_1,
   97         generic_armv4_bs_wm_2,
   98         generic_bs_wm_4,
   99         NULL,
  100 
  101         /* write region */
  102         NULL,
  103         NULL,
  104         NULL,
  105         NULL,
  106 
  107         /* set multiple */
  108         NULL,
  109         NULL,
  110         NULL,
  111         NULL,
  112 
  113         /* set region */
  114         NULL,
  115         NULL,
  116         NULL,
  117         NULL,
  118 
  119         /* copy */
  120         NULL,
  121         NULL,
  122         NULL,
  123         NULL,
  124 
  125         /* read stream (single) */
  126         NULL,
  127         NULL,
  128         NULL,
  129         NULL,
  130 
  131         /* read multiple stream */
  132         NULL,
  133         generic_armv4_bs_rm_2,          /* bus_space_read_multi_stream_2 */
  134         NULL,
  135         NULL,
  136 
  137         /* read region stream */
  138         NULL,
  139         NULL,
  140         NULL,
  141         NULL,
  142 
  143         /* write stream (single) */
  144         NULL,
  145         NULL,
  146         NULL,
  147         NULL,
  148 
  149         /* write multiple stream */
  150         NULL,
  151         generic_armv4_bs_wm_2,          /* bus_space_write_multi_stream_2 */
  152         NULL,
  153         NULL,
  154 
  155         /* write region stream */
  156         NULL,
  157         NULL,
  158         NULL,
  159         NULL
  160 };
  161 
  162 bus_space_tag_t fdtbus_bs_tag = &_base_tag;

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