1 /* $NetBSD: smdk2800_pci.c,v 1.4 2005/12/11 12:17:09 christos 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 1.4 2005/12/11 12:17:09 christos Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/types.h> 44 #include <sys/device.h> 45 #include <sys/systm.h> 46 #include <sys/extent.h> 47 48 #define _ARM32_BUS_DMA_PRIVATE 49 #include <machine/bus.h> 50 51 #include <dev/pci/pcivar.h> 52 #include <dev/pci/pciconf.h> 53 54 #include <arm/s3c2xx0/s3c2800var.h> 55 56 static struct arm32_dma_range smdk2800_dma_ranges[1]; 57 58 static struct arm32_bus_dma_tag smdk2800_bus_dma = { 59 NULL, /* _ranges: set by init routine */ 60 0, /* _nranges */ 61 62 NULL, /* _cookie */ 63 64 _bus_dmamap_create, 65 _bus_dmamap_destroy, 66 _bus_dmamap_load, 67 _bus_dmamap_load_mbuf, 68 _bus_dmamap_load_uio, 69 _bus_dmamap_load_raw, 70 _bus_dmamap_unload, 71 _bus_dmamap_sync, 72 NULL, /* sync_post */ 73 74 _bus_dmamem_alloc, 75 _bus_dmamem_free, 76 _bus_dmamem_map, 77 _bus_dmamem_unmap, 78 _bus_dmamem_mmap, 79 }; 80 81 bus_dma_tag_t 82 s3c2800_pci_dma_init(void) 83 { 84 extern paddr_t physical_start, physical_end; 85 86 smdk2800_dma_ranges[0].dr_sysbase = physical_start; 87 smdk2800_dma_ranges[0].dr_busbase = 88 0x80000000 + physical_start - S3C2800_DBANK0_START; 89 smdk2800_dma_ranges[0].dr_len = physical_end - physical_start; 90 91 smdk2800_bus_dma._ranges = smdk2800_dma_ranges; 92 smdk2800_bus_dma._nranges = 1; 93 94 return &smdk2800_bus_dma; 95 } 96