FreeBSD/Linux Kernel Cross Reference
sys/dev/ofw/ofw_pci.h
1 /* $NetBSD: ofw_pci.h,v 1.5 2003/10/22 09:04:39 mjl Exp $ */
2
3 /*-
4 * Copyright (c) 1999 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 of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 #ifndef _DEV_OFW_OFW_PCI_H_
41 #define _DEV_OFW_OFW_PCI_H_
42
43 /*
44 * PCI Bus Binding to:
45 *
46 * IEEE Std 1275-1994
47 * Standard for Boot (Initialization Configuration) Firmware
48 *
49 * Revision 2.1
50 */
51
52 /*
53 * Section 2.2.1. Physical Address Formats
54 *
55 * A PCI physical address is represented by 3 address cells:
56 *
57 * phys.hi cell: npt000ss bbbbbbbb dddddfff rrrrrrrr
58 * phys.mid cell: hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh
59 * phys.lo cell: llllllll llllllll llllllll llllllll
60 *
61 * n nonrelocatable
62 * p prefetchable
63 * t aliased below 1MB (memory) or 64k (i/o)
64 * ss space code
65 * b bus number
66 * d device number
67 * f function number
68 * r register number
69 * h high 32-bits of PCI address
70 * l low 32-bits of PCI address
71 */
72
73 #define OFW_PCI_PHYS_HI_NONRELOCATABLE 0x80000000
74 #define OFW_PCI_PHYS_HI_PREFETCHABLE 0x40000000
75 #define OFW_PCI_PHYS_HI_ALIASED 0x20000000
76 #define OFW_PCI_PHYS_HI_SPACEMASK 0x03000000
77 #define OFW_PCI_PHYS_HI_BUSMASK 0x00ff0000
78 #define OFW_PCI_PHYS_HI_BUSSHIFT 16
79 #define OFW_PCI_PHYS_HI_DEVICEMASK 0x0000f800
80 #define OFW_PCI_PHYS_HI_DEVICESHIFT 11
81 #define OFW_PCI_PHYS_HI_FUNCTIONMASK 0x00000700
82 #define OFW_PCI_PHYS_HI_FUNCTIONSHIFT 8
83 #define OFW_PCI_PHYS_HI_REGISTERMASK 0x000000ff
84
85 #define OFW_PCI_PHYS_HI_SPACE_CONFIG 0x00000000
86 #define OFW_PCI_PHYS_HI_SPACE_IO 0x01000000
87 #define OFW_PCI_PHYS_HI_SPACE_MEM32 0x02000000
88 #define OFW_PCI_PHYS_HI_SPACE_MEM64 0x03000000
89
90 #define OFW_PCI_PHYS_HI_BUS(hi) \
91 (((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT)
92 #define OFW_PCI_PHYS_HI_DEVICE(hi) \
93 (((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT)
94 #define OFW_PCI_PHYS_HI_FUNCTION(hi) \
95 (((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT)
96
97 /*
98 * This has the 3 32bit cell values, plus 2 more to make up a 64-bit size.
99 */
100 struct ofw_pci_register {
101 u_int32_t phys_hi;
102 u_int32_t phys_mid;
103 u_int32_t phys_lo;
104 u_int32_t size_hi;
105 u_int32_t size_lo;
106 };
107
108 #endif /* _DEV_OFW_OFW_PCI_H_ */
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