1/* $NetBSD: algor_p5064_dma.c,v 1.5 2011/07/01 18:30:36 dyoung Exp $ */ 2 3/*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32/* 33 * Platform-specific DMA support for the Algorithmics P-5064. 34 */ 35 36#include <sys/cdefs.h> 37__KERNEL_RCSID(0, "$NetBSD: algor_p5064_dma.c,v 1.5 2011/07/01 18:30:36 dyoung Exp $"); 38 39#include <sys/param.h> 40 41#define _MIPS_BUS_DMA_PRIVATE 42#include <sys/bus.h> 43 44#include <algor/algor/algor_p5064reg.h> 45#include <algor/algor/algor_p5064var.h> 46 47#include <dev/isa/isavar.h> 48 49void 50algor_p5064_dma_init(struct p5064_config *acp) 51{ 52 bus_dma_tag_t t; 53 54 /* 55 * Initialize the DMA tag used for PCI DMA. 56 */ 57 t = &acp->ac_pci_dmat; 58 t->_cookie = acp; 59 t->_wbase = P5064_DMA_PCI_PCIBASE; 60 t->_bounce_alloc_lo = P5064_DMA_PCI_PHYSBASE; 61 t->_bounce_alloc_hi = P5064_DMA_PCI_PHYSBASE + P5064_DMA_PCI_SIZE; 62 t->_dmamap_ops = mips_bus_dmamap_ops; 63 t->_dmamem_ops = mips_bus_dmamem_ops; 64 t->_dmatag_ops = mips_bus_dmatag_ops; 65 66 /* 67 * Initialize the DMA tag usd for ISA DMA. 68 */ 69 t = &acp->ac_isa_dmat; 70 t->_cookie = acp; 71 t->_wbase = P5064_DMA_ISA_PCIBASE; 72 t->_bounce_alloc_lo = P5064_DMA_ISA_PHYSBASE; 73 t->_bounce_alloc_hi = P5064_DMA_ISA_PHYSBASE + P5064_DMA_ISA_SIZE; 74 t->_dmamap_ops = mips_bus_dmamap_ops; 75 t->_dmamem_ops = mips_bus_dmamem_ops; 76 t->_dmatag_ops = mips_bus_dmatag_ops; 77} 78