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75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
/* $NetBSD: octeon_dma.c,v 1.1 2015/04/29 08:32:00 hikaru 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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 OCTEON. Copied from MALTA code.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: octeon_dma.c,v 1.1 2015/04/29 08:32:00 hikaru Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <mips/cpuregs.h>
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#define _MIPS_BUS_DMA_PRIVATE
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#include <sys/bus.h>
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#include <mips/cavium/octeonvar.h>
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void
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octeon_dma_init(struct octeon_config *mcp)
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{
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bus_dma_tag_t t;
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/* XXX need 32bit tag? */
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t = &mcp->mc_iobus_dmat;
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t->_cookie = mcp;
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t->_wbase = 0;
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t->_bounce_alloc_lo = 0;
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t->_bounce_alloc_hi = 0;
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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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/* XXX struct copy */
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mcp->mc_bootbus_dmat = mcp->mc_iobus_dmat;
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mcp->mc_core1_dmat = mcp->mc_iobus_dmat;
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}
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