ofw_pci.h revision 86557
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 1.3 2001/02/16 14:16:30 mrg Exp 38 * 39 * $FreeBSD: head/sys/dev/ofw/ofw_pci.h 86557 2001-11-18 20:38:44Z tmm $ 40 */ 41 42#ifndef _DEV_OFW_OFW_PCI_H_ 43#define _DEV_OFW_OFW_PCI_H_ 44 45/* 46 * PCI Bus Binding to: 47 * 48 * IEEE Std 1275-1994 49 * Standard for Boot (Initialization Configuration) Firmware 50 * 51 * Revision 2.1 52 */ 53 54/* 55 * Section 2.2.1. Physical Address Formats 56 * 57 * A PCI physical address is represented by 3 address cells: 58 * 59 * phys.hi cell: npt000ss bbbbbbbb dddddfff rrrrrrrr 60 * phys.mid cell: hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh 61 * phys.lo cell: llllllll llllllll llllllll llllllll 62 * 63 * n nonrelocatable 64 * p prefectable 65 * t aliased below 1MB (memory) or 64k (i/o) 66 * ss space code 67 * b bus number 68 * d device number 69 * f function number 70 * r register number 71 * h high 32-bits of PCI address 72 * l low 32-bits of PCI address 73 */ 74 75#define OFW_PCI_PHYS_HI_NONRELOCATABLE 0x80000000 76#define OFW_PCI_PHYS_HI_PREFETCHABLE 0x40000000 77#define OFW_PCI_PHYS_HI_ALIASED 0x20000000 78#define OFW_PCI_PHYS_HI_SPACEMASK 0x03000000 79#define OFW_PCI_PHYS_HI_BUSMASK 0x00ff0000 80#define OFW_PCI_PHYS_HI_BUSSHIFT 16 81#define OFW_PCI_PHYS_HI_DEVICEMASK 0x0000f800 82#define OFW_PCI_PHYS_HI_DEVICESHIFT 11 83#define OFW_PCI_PHYS_HI_FUNCTIONMASK 0x00000700 84#define OFW_PCI_PHYS_HI_FUNCTIONSHIFT 8 85#define OFW_PCI_PHYS_HI_REGISTERMASK 0x000000ff 86 87#define OFW_PCI_PHYS_HI_SPACE_CONFIG 0x00000000 88#define OFW_PCI_PHYS_HI_SPACE_IO 0x01000000 89#define OFW_PCI_PHYS_HI_SPACE_MEM32 0x02000000 90#define OFW_PCI_PHYS_HI_SPACE_MEM64 0x03000000 91 92#define OFW_PCI_PHYS_HI_BUS(hi) \ 93 (((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT) 94#define OFW_PCI_PHYS_HI_DEVICE(hi) \ 95 (((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT) 96#define OFW_PCI_PHYS_HI_FUNCTION(hi) \ 97 (((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT) 98 99/* 100 * This has the 3 32bit cell values, plus 2 more to make up a 64-bit size. 101 */ 102struct ofw_pci_register { 103 u_int32_t phys_hi; 104 u_int32_t phys_mid; 105 u_int32_t phys_lo; 106 u_int32_t size_hi; 107 u_int32_t size_lo; 108}; 109 110#endif /* _DEV_OFW_OFW_PCI_H_ */ 111