67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
/* $NetBSD: malta_dma.c,v 1.9 2011/07/01 18:46:35 dyoung Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Platform-specific DMA support for the MIPS Malta.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: malta_dma.c,v 1.9 2011/07/01 18:46:35 dyoung Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#define _MIPS_BUS_DMA_PRIVATE
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#include <sys/bus.h>
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#include <dev/isa/isavar.h>
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#include <evbmips/malta/maltareg.h>
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#include <evbmips/malta/maltavar.h>
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void
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malta_dma_init(struct malta_config *acp)
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{
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bus_dma_tag_t t;
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/*
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* Initialize the DMA tag used for PCI DMA.
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*/
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t = &acp->mc_pci_dmat;
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t->_cookie = acp;
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t->_wbase = MALTA_DMA_PCI_PCIBASE;
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t->_bounce_alloc_lo = MALTA_DMA_PCI_PHYSBASE;
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t->_bounce_alloc_hi = MALTA_DMA_PCI_PHYSBASE + MALTA_DMA_PCI_SIZE;
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t->_dmamap_ops = mips_bus_dmamap_ops;
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t->_dmamem_ops = mips_bus_dmamem_ops;
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t->_dmatag_ops = mips_bus_dmatag_ops;
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}
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