1 /* $OpenBSD: ofw_pci.h,v 1.3 2004/10/01 04:08:45 jsg Exp $ */ 2 /* $NetBSD: ofw_pci.h,v 1.4 2001/02/17 16:28:37 mrg Exp $ */ 3 4 /*- 5 * Copyright (c) 1999 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 10 * NASA Ames Research Center. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 #ifndef _DEV_OFW_OFW_PCI_H_ 42 #define _DEV_OFW_OFW_PCI_H_ 43 44 /* 45 * PCI Bus Binding to: 46 * 47 * IEEE Std 1275-1994 48 * Standard for Boot (Initialization Configuration) Firmware 49 * 50 * Revision 2.1 51 */ 52 53 /* 54 * Section 2.2.1. Physical Address Formats 55 * 56 * A PCI physical address is represented by 3 address cells: 57 * 58 * phys.hi cell: npt000ss bbbbbbbb dddddfff rrrrrrrr 59 * phys.mid cell: hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh 60 * phys.lo cell: llllllll llllllll llllllll llllllll 61 * 62 * n nonrelocatable 63 * p prefetchable 64 * t aliased below 1MB (memory) or 64k (i/o) 65 * ss space code 66 * b bus number 67 * d device number 68 * f function number 69 * r register number 70 * h high 32-bits of PCI address 71 * l low 32-bits of PCI address 72 */ 73 74 #define OFW_PCI_PHYS_HI_NONRELOCATABLE 0x80000000 75 #define OFW_PCI_PHYS_HI_PREFETCHABLE 0x40000000 76 #define OFW_PCI_PHYS_HI_ALIASED 0x20000000 77 #define OFW_PCI_PHYS_HI_SPACEMASK 0x03000000 78 #define OFW_PCI_PHYS_HI_BUSMASK 0x00ff0000 79 #define OFW_PCI_PHYS_HI_BUSSHIFT 16 80 #define OFW_PCI_PHYS_HI_DEVICEMASK 0x0000f800 81 #define OFW_PCI_PHYS_HI_DEVICESHIFT 11 82 #define OFW_PCI_PHYS_HI_FUNCTIONMASK 0x00000700 83 #define OFW_PCI_PHYS_HI_FUNCTIONSHIFT 8 84 #define OFW_PCI_PHYS_HI_REGISTERMASK 0x000000ff 85 86 #define OFW_PCI_PHYS_HI_SPACE_CONFIG 0x00000000 87 #define OFW_PCI_PHYS_HI_SPACE_IO 0x01000000 88 #define OFW_PCI_PHYS_HI_SPACE_MEM32 0x02000000 89 #define OFW_PCI_PHYS_HI_SPACE_MEM64 0x03000000 90 91 #define OFW_PCI_PHYS_HI_BUS(hi) \ 92 (((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT) 93 #define OFW_PCI_PHYS_HI_DEVICE(hi) \ 94 (((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT) 95 #define OFW_PCI_PHYS_HI_FUNCTION(hi) \ 96 (((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT) 97 98 /* 99 * This has the 3 32bit cell values, plus 2 more to make up a 64-bit size. 100 */ 101 struct ofw_pci_register { 102 u_int32_t phys_hi; 103 u_int32_t phys_mid; 104 u_int32_t phys_lo; 105 u_int32_t size_hi; 106 u_int32_t size_lo; 107 }; 108 109 #endif /* _DEV_OFW_OFW_PCI_H_ */ 110