1/* $NetBSD: smdk2800_pci.c,v 1.6 2020/06/17 07:02:31 thorpej Exp $ */ 2 3/* 4 * Copyright (c) 2002 Fujitsu Component Limited 5 * Copyright (c) 2002 Genetec Corporation 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of The Fujitsu Component Limited nor the name of 17 * Genetec corporation may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY FUJITSU COMPONENT LIMITED AND GENETEC 21 * CORPORATION ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 22 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL FUJITSU COMPONENT LIMITED OR GENETEC 25 * CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 28 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 29 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35/* 36 * Platform specific part for S3C2800 PCI support on SMDK2800 37 */ 38 39#include <sys/cdefs.h> 40__KERNEL_RCSID(0, "$NetBSD: smdk2800_pci.c,v 1.6 2020/06/17 07:02:31 thorpej Exp $"); 41 42#include <sys/param.h> 43#include <sys/types.h> 44#include <sys/device.h> 45#include <sys/systm.h> 46 47#define _ARM32_BUS_DMA_PRIVATE 48#include <sys/bus.h> 49 50#include <dev/pci/pcivar.h> 51#include <dev/pci/pciconf.h> 52 53#include <arm/s3c2xx0/s3c2800var.h> 54 55static struct arm32_dma_range smdk2800_dma_ranges[1]; 56 57static struct arm32_bus_dma_tag smdk2800_bus_dma = { 58 NULL, /* _ranges: set by init routine */ 59 0, /* _nranges */ 60 61 NULL, /* _cookie */ 62 63 _bus_dmamap_create, 64 _bus_dmamap_destroy, 65 _bus_dmamap_load, 66 _bus_dmamap_load_mbuf, 67 _bus_dmamap_load_uio, 68 _bus_dmamap_load_raw, 69 _bus_dmamap_unload, 70 _bus_dmamap_sync, 71 NULL, /* sync_post */ 72 73 _bus_dmamem_alloc, 74 _bus_dmamem_free, 75 _bus_dmamem_map, 76 _bus_dmamem_unmap, 77 _bus_dmamem_mmap, 78}; 79 80bus_dma_tag_t 81s3c2800_pci_dma_init(void) 82{ 83 extern paddr_t physical_start, physical_end; 84 85 smdk2800_dma_ranges[0].dr_sysbase = physical_start; 86 smdk2800_dma_ranges[0].dr_busbase = 87 0x80000000 + physical_start - S3C2800_DBANK0_START; 88 smdk2800_dma_ranges[0].dr_len = physical_end - physical_start; 89 90 smdk2800_bus_dma._ranges = smdk2800_dma_ranges; 91 smdk2800_bus_dma._nranges = 1; 92 93 return &smdk2800_bus_dma; 94} 95