sys/arch/arm/omap/omap_nobyteacc_space.c

   1 /*      $NetBSD: $ */
   2
   3 /*
   4  * "nobyteacc" bus_space functions for Texas Instruments OMAP processor.
   5  * Based on pxa2x0_space.c which in turn was derived from i80321_space.c.
   6  *
   7  * Copyright (c) 2001, 2002 Wasabi Systems, Inc.
   8  * All rights reserved.
   9  *
  10  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  * 3. All advertising materials mentioning features or use of this software
  21  *    must display the following acknowledgement:
  22  *      This product includes software developed for the NetBSD Project by
  23  *      Wasabi Systems, Inc.
  24  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  25  *    or promote products derived from this software without specific prior
  26  *    written permission.
  27  *
  28  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  38  * POSSIBILITY OF SUCH DAMAGE.
  39  *
  40  * Copyright (c) 1997 Mark Brinicombe.
  41  * Copyright (c) 1997 Causality Limited.
  42  * All rights reserved.
  43  *
  44  * This code is derived from software contributed to The NetBSD Foundation
  45  * by Ichiro FUKUHARA.
  46  *
  47  * Redistribution and use in source and binary forms, with or without
  48  * modification, are permitted provided that the following conditions
  49  * are met:
  50  * 1. Redistributions of source code must retain the above copyright
  51  *    notice, this list of conditions and the following disclaimer.
  52  * 2. Redistributions in binary form must reproduce the above copyright
  53  *    notice, this list of conditions and the following disclaimer in the
  54  *    documentation and/or other materials provided with the distribution.
  55  * 3. All advertising materials mentioning features or use of this software
  56  *    must display the following acknowledgement:
  57  *      This product includes software developed by Mark Brinicombe.
  58  * 4. The name of the company nor the name of the author may be used to
  59  *    endorse or promote products derived from this software without specific
  60  *    prior written permission.
  61  *
  62  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  63  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  64  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  65  * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  66  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  67  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  68  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  72  * SUCH DAMAGE.
  73  */
  74
  75 #include <sys/cdefs.h>
  76 __KERNEL_RCSID(0, "$NetBSD: $");
  77
  78 #include <sys/param.h>
  79 #include <sys/systm.h>
  80
  81 #include <uvm/uvm_extern.h>
  82
  83 #include <machine/bus.h>
  84
  85 /* Prototypes for all the bus_space structure functions */
  86 bs_protos(omap);
  87 bs_protos(nobyteacc);
  88 bs_protos(generic);
  89 bs_protos(generic_armv4);
  90 bs_protos(bs_notimpl);
  91
  92 struct bus_space nobyteacc_bs_tag = {
  93         /* cookie */
  94         (void *) 0,
  95
  96         /* mapping/unmapping */
  97         omap_bs_map,
  98         omap_bs_unmap,
  99         omap_bs_subregion,
 100
 101         /* allocation/deallocation */
 102         omap_bs_alloc,  /* not implemented */
 103         omap_bs_free,           /* not implemented */
 104
 105         /* get kernel virtual address */
 106         omap_bs_vaddr,
 107
 108         /* mmap */
 109         bs_notimpl_bs_mmap,
 110
 111         /* barrier */
 112         omap_bs_barrier,
 113
 114         /* read (single) */
 115         generic_bs_r_1,
 116         generic_armv4_bs_r_2,
 117         generic_bs_r_4,
 118         bs_notimpl_bs_r_8,
 119
 120         /* read multiple */
 121         generic_bs_rm_1,
 122         generic_armv4_bs_rm_2,
 123         generic_bs_rm_4,
 124         bs_notimpl_bs_rm_8,
 125
 126         /* read region */
 127         generic_bs_rr_1,
 128         generic_armv4_bs_rr_2,
 129         generic_bs_rr_4,
 130         bs_notimpl_bs_rr_8,
 131
 132         /* write (single) */
 133         nobyteacc_bs_w_1, /* promote 8-bit writes to 16-bit */
 134         generic_armv4_bs_w_2,
 135         generic_bs_w_4,
 136         bs_notimpl_bs_w_8,
 137
 138         /* write multiple */
 139         bs_notimpl_bs_wm_1,
 140         generic_armv4_bs_wm_2,
 141         generic_bs_wm_4,
 142         bs_notimpl_bs_wm_8,
 143
 144         /* write region */
 145         bs_notimpl_bs_wr_1,
 146         generic_armv4_bs_wr_2,
 147         generic_bs_wr_4,
 148         bs_notimpl_bs_wr_8,
 149
 150         /* set multiple */
 151         bs_notimpl_bs_sm_1,
 152         bs_notimpl_bs_sm_2,
 153         bs_notimpl_bs_sm_4,
 154         bs_notimpl_bs_sm_8,
 155
 156         /* set region */
 157         bs_notimpl_bs_sr_1,
 158         generic_armv4_bs_sr_2,
 159         bs_notimpl_bs_sr_4,
 160         bs_notimpl_bs_sr_8,
 161
 162         /* copy */
 163         bs_notimpl_bs_c_1,
 164         generic_armv4_bs_c_2,
 165         bs_notimpl_bs_c_4,
 166         bs_notimpl_bs_c_8,
 167 };
 168