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ixp425_a4x_space.c revision 1.3 
      1 /*	$NetBSD: ixp425_a4x_space.c,v 1.3 2011/07/01 20:32:51 dyoung Exp $	*/
      2 
      3 /*
      4  * Copyright 2003 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Steve C. Woodford 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  * Bus space tag for 8/16-bit devices on 32-bit bus.
     40  * all registers are located at the address of multiple of 4.
     41  *
     42  * Based on pxa2x0_a4x_space.c
     43  */
     44 
     45 #include <sys/cdefs.h>
     46 __KERNEL_RCSID(0, "$NetBSD: ixp425_a4x_space.c,v 1.3 2011/07/01 20:32:51 dyoung Exp $");
     47 
     48 #include <sys/param.h>
     49 #include <sys/systm.h>
     50 
     51 #include <uvm/uvm_extern.h>
     52 
     53 #include <sys/bus.h>
     54 
     55 /* Prototypes for all the bus_space structure functions */
     56 bs_protos(ixp425);
     57 bs_protos(a4x);
     58 bs_protos(generic);
     59 bs_protos(generic_armv4);
     60 bs_protos(bs_notimpl);
     61 
     62 struct bus_space ixp425_a4x_bs_tag = {
     63 	/* cookie */
     64 	(void *) 0,
     65 
     66 	/* mapping/unmapping */
     67 	ixp425_bs_map,
     68 	ixp425_bs_unmap,
     69 	ixp425_bs_subregion,
     70 
     71 	/* allocation/deallocation */
     72 	ixp425_bs_alloc,	/* not implemented */
     73 	ixp425_bs_free,		/* not implemented */
     74 
     75 	/* get kernel virtual address */
     76 	ixp425_bs_vaddr,
     77 
     78 	/* mmap */
     79 	bs_notimpl_bs_mmap,
     80 
     81 	/* barrier */
     82 	ixp425_bs_barrier,
     83 
     84 	/* read (single) */
     85 	a4x_bs_r_1,
     86 	a4x_bs_r_2,
     87 	a4x_bs_r_4,
     88 	bs_notimpl_bs_r_8,
     89 
     90 	/* read multiple */
     91 	a4x_bs_rm_1,
     92 	a4x_bs_rm_2,
     93 	bs_notimpl_bs_rm_4,
     94 	bs_notimpl_bs_rm_8,
     95 
     96 	/* read region */
     97 	bs_notimpl_bs_rr_1,
     98 	bs_notimpl_bs_rr_2,
     99 	bs_notimpl_bs_rr_4,
    100 	bs_notimpl_bs_rr_8,
    101 
    102 	/* write (single) */
    103 	a4x_bs_w_1,
    104 	a4x_bs_w_2,
    105 	a4x_bs_w_4,
    106 	bs_notimpl_bs_w_8,
    107 
    108 	/* write multiple */
    109 	a4x_bs_wm_1,
    110 	a4x_bs_wm_2,
    111 	bs_notimpl_bs_wm_4,
    112 	bs_notimpl_bs_wm_8,
    113 
    114 	/* write region */
    115 	bs_notimpl_bs_wr_1,
    116 	bs_notimpl_bs_wr_2,
    117 	bs_notimpl_bs_wr_4,
    118 	bs_notimpl_bs_wr_8,
    119 
    120 	/* set multiple */
    121 	bs_notimpl_bs_sm_1,
    122 	bs_notimpl_bs_sm_2,
    123 	bs_notimpl_bs_sm_4,
    124 	bs_notimpl_bs_sm_8,
    125 
    126 	/* set region */
    127 	bs_notimpl_bs_sr_1,
    128 	bs_notimpl_bs_sr_2,
    129 	bs_notimpl_bs_sr_4,
    130 	bs_notimpl_bs_sr_8,
    131 
    132 	/* copy */
    133 	bs_notimpl_bs_c_1,
    134 	bs_notimpl_bs_c_2,
    135 	bs_notimpl_bs_c_4,
    136 	bs_notimpl_bs_c_8,
    137 };
    138