ofw_pci.h (3633B) - Raw
1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 * 32 * from: NetBSD: ofw_pci.h,v 1.5 2003/10/22 09:04:39 mjl Exp 33 */ 34 35 #ifndef _DEV_OFW_OFW_PCI_H_ 36 #define _DEV_OFW_OFW_PCI_H_ 37 38 /* 39 * PCI Bus Binding to: 40 * 41 * IEEE Std 1275-1994 42 * Standard for Boot (Initialization Configuration) Firmware 43 * 44 * Revision 2.1 45 */ 46 47 /* 48 * Section 2.2.1. Physical Address Formats 49 * 50 * A PCI physical address is represented by 3 address cells: 51 * 52 * phys.hi cell: npt000ss bbbbbbbb dddddfff rrrrrrrr 53 * phys.mid cell: hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh 54 * phys.lo cell: llllllll llllllll llllllll llllllll 55 * 56 * n nonrelocatable 57 * p prefetchable 58 * t aliased below 1MB (memory) or 64k (i/o) 59 * ss space code 60 * b bus number 61 * d device number 62 * f function number 63 * r register number 64 * h high 32-bits of PCI address 65 * l low 32-bits of PCI address 66 */ 67 68 #define OFW_PCI_PHYS_HI_NONRELOCATABLE 0x80000000 69 #define OFW_PCI_PHYS_HI_PREFETCHABLE 0x40000000 70 #define OFW_PCI_PHYS_HI_ALIASED 0x20000000 71 #define OFW_PCI_PHYS_HI_SPACEMASK 0x03000000 72 #define OFW_PCI_PHYS_HI_BUSMASK 0x00ff0000 73 #define OFW_PCI_PHYS_HI_BUSSHIFT 16 74 #define OFW_PCI_PHYS_HI_DEVICEMASK 0x0000f800 75 #define OFW_PCI_PHYS_HI_DEVICESHIFT 11 76 #define OFW_PCI_PHYS_HI_FUNCTIONMASK 0x00000700 77 #define OFW_PCI_PHYS_HI_FUNCTIONSHIFT 8 78 #define OFW_PCI_PHYS_HI_REGISTERMASK 0x000000ff 79 80 #define OFW_PCI_PHYS_HI_SPACE_CONFIG 0x00000000 81 #define OFW_PCI_PHYS_HI_SPACE_IO 0x01000000 82 #define OFW_PCI_PHYS_HI_SPACE_MEM32 0x02000000 83 #define OFW_PCI_PHYS_HI_SPACE_MEM64 0x03000000 84 85 #define OFW_PCI_PHYS_HI_BUS(hi) \ 86 (((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT) 87 #define OFW_PCI_PHYS_HI_DEVICE(hi) \ 88 (((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT) 89 #define OFW_PCI_PHYS_HI_FUNCTION(hi) \ 90 (((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT) 91 92 /* 93 * This has the 3 32bit cell values, plus 2 more to make up a 64-bit size. 94 */ 95 struct ofw_pci_register { 96 u_int32_t phys_hi; 97 u_int32_t phys_mid; 98 u_int32_t phys_lo; 99 u_int32_t size_hi; 100 u_int32_t size_lo; 101 }; 102 103 #endif /* _DEV_OFW_OFW_PCI_H_ */