1 /* $NetBSD: ofw_pci.h,v 1.4 2001/02/17 16:28:37 mrg 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 prefectable 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_ */ 109