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      1 /*	$NetBSD: adm5120_obio_dma.c,v 1.5 2015/06/09 22:50:50 matt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or
      8  * without modification, are permitted provided that the following
      9  * conditions 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
     13  *    copyright notice, this list of conditions and the following
     14  *    disclaimer in the documentation and/or other materials provided
     15  *    with the distribution.
     16  * 3. The names of the authors may not be used to endorse or promote
     17  *    products derived from this software without specific prior
     18  *    written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY
     21  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
     23  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     25  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
     27  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
     29  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     30  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
     31  * OF SUCH DAMAGE.
     32  */
     33 /*-
     34  * Copyright (c) 2001 The NetBSD Foundation, Inc.
     35  * All rights reserved.
     36  *
     37  * This code is derived from software contributed to The NetBSD Foundation
     38  * by Jason R. Thorpe.
     39  *
     40  * Redistribution and use in source and binary forms, with or without
     41  * modification, are permitted provided that the following conditions
     42  * are met:
     43  * 1. Redistributions of source code must retain the above copyright
     44  *    notice, this list of conditions and the following disclaimer.
     45  * 2. Redistributions in binary form must reproduce the above copyright
     46  *    notice, this list of conditions and the following disclaimer in the
     47  *    documentation and/or other materials provided with the distribution.
     48  *
     49  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     50  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     51  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     52  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     53  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     54  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     55  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     56  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     57  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     58  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     59  * POSSIBILITY OF SUCH DAMAGE.
     60  */
     61 
     62 /*
     63  * Platform-specific DMA support for the Infineon ADM5120.
     64  */
     65 
     66 #include <sys/cdefs.h>
     67 __KERNEL_RCSID(0, "$NetBSD: adm5120_obio_dma.c,v 1.5 2015/06/09 22:50:50 matt Exp $");
     68 
     69 #include <sys/param.h>
     70 
     71 #define	_MIPS_BUS_DMA_PRIVATE
     72 #include <sys/bus.h>
     73 
     74 #include <mips/cpuregs.h>
     75 
     76 #include <mips/adm5120/include/adm5120_obiovar.h>
     77 
     78 void
     79 obio_dma_init(bus_dma_tag_t t)
     80 {
     81 	t->_cookie = t;
     82 	t->_wbase = 0;
     83 	t->_bounce_alloc_lo = 0;
     84 	t->_bounce_alloc_hi = MIPS_KSEG1_START - MIPS_KSEG0_START;
     85 	t->_dmamap_ops = mips_bus_dmamap_ops;
     86 	t->_dmamem_ops = mips_bus_dmamem_ops;
     87 	t->_dmatag_ops = mips_bus_dmatag_ops;
     88 }
     89