1/*-
2 * Copyright (c) 1999 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
7 * NASA Ames Research Center.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 *    must display the following acknowledgement:
19 *	This product includes software developed by the NetBSD
20 *	Foundation, Inc. and its contributors.
21 * 4. Neither the name of The NetBSD Foundation nor the names of its
22 *    contributors may be used to endorse or promote products derived
23 *    from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 *
37 *	from: NetBSD: ofw_pci.h,v 1.5 2003/10/22 09:04:39 mjl Exp
38 *
39 * $FreeBSD$
40 */
41
42#ifndef _KERNEL_OPEN_FIRMWARE_PCI_H
43#define	_KERNEL_OPEN_FIRMWARE_PCI_H
44
45#include <SupportDefs.h>
46
47/*
48 * PCI Bus Binding to:
49 *
50 * IEEE Std 1275-1994
51 * Standard for Boot (Initialization Configuration) Firmware
52 *
53 * Revision 2.1
54 */
55
56/*
57 * Section 2.2.1. Physical Address Formats
58 *
59 * A PCI physical address is represented by 3 address cells:
60 *
61 *	phys.hi cell:	npt000ss bbbbbbbb dddddfff rrrrrrrr
62 *	phys.mid cell:	hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh
63 *	phys.lo cell:	llllllll llllllll llllllll llllllll
64 *
65 *	n	nonrelocatable
66 *	p	prefetchable
67 *	t	aliased below 1MB (memory) or 64k (i/o)
68 *	ss	space code
69 *	b	bus number
70 *	d	device number
71 *	f	function number
72 *	r	register number
73 *	h	high 32-bits of PCI address
74 *	l	low 32-bits of PCI address
75 */
76
77#define	OFW_PCI_PHYS_HI_NONRELOCATABLE	0x80000000
78#define	OFW_PCI_PHYS_HI_PREFETCHABLE	0x40000000
79#define	OFW_PCI_PHYS_HI_ALIASED		0x20000000
80#define	OFW_PCI_PHYS_HI_SPACEMASK	0x03000000
81#define	OFW_PCI_PHYS_HI_BUSMASK		0x00ff0000
82#define	OFW_PCI_PHYS_HI_BUSSHIFT	16
83#define	OFW_PCI_PHYS_HI_DEVICEMASK	0x0000f800
84#define	OFW_PCI_PHYS_HI_DEVICESHIFT	11
85#define	OFW_PCI_PHYS_HI_FUNCTIONMASK	0x00000700
86#define	OFW_PCI_PHYS_HI_FUNCTIONSHIFT	8
87#define	OFW_PCI_PHYS_HI_REGISTERMASK	0x000000ff
88
89#define	OFW_PCI_PHYS_HI_SPACE_CONFIG	0x00000000
90#define	OFW_PCI_PHYS_HI_SPACE_IO	0x01000000
91#define	OFW_PCI_PHYS_HI_SPACE_MEM32	0x02000000
92#define	OFW_PCI_PHYS_HI_SPACE_MEM64	0x03000000
93
94#define OFW_PCI_PHYS_HI_BUS(hi) \
95	(((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT)
96#define OFW_PCI_PHYS_HI_DEVICE(hi) \
97	(((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT)
98#define OFW_PCI_PHYS_HI_FUNCTION(hi) \
99	(((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT)
100
101/*
102 * This has the 3 32bit cell values, plus 2 more to make up a 64-bit size.
103 */
104struct ofw_pci_register {
105	uint32	phys_hi;
106	uint32	phys_mid;
107	uint32	phys_lo;
108	uint32	size_hi;
109	uint32	size_lo;
110};
111
112#endif /* _KERNEL_OPEN_FIRMWARE_PCI_H */
113