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