906b28a9ac
device tree for PCI controllers and make them known to the bus manager, if we know how to talk with them. ATM we support only the UniNorth chip, which can be found in G4 Macs (code ported from FreeBSD). As far as I can judge it, all attached devices are identified correctly on all three host bridges of my Mac mini. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16102 a95241bf-73f2-0310-859d-f6bbb57e9c96
113 lines
4.0 KiB
C
113 lines
4.0 KiB
C
/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* from: NetBSD: ofw_pci.h,v 1.5 2003/10/22 09:04:39 mjl Exp
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*
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* $FreeBSD$
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*/
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#ifndef _KERNEL_OPEN_FIRMWARE_PCI_H
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#define _KERNEL_OPEN_FIRMWARE_PCI_H
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#include <SupportDefs.h>
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/*
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* PCI Bus Binding to:
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*
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* IEEE Std 1275-1994
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* Standard for Boot (Initialization Configuration) Firmware
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*
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* Revision 2.1
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*/
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/*
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* Section 2.2.1. Physical Address Formats
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*
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* A PCI physical address is represented by 3 address cells:
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*
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* phys.hi cell: npt000ss bbbbbbbb dddddfff rrrrrrrr
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* phys.mid cell: hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh
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* phys.lo cell: llllllll llllllll llllllll llllllll
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*
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* n nonrelocatable
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* p prefetchable
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* t aliased below 1MB (memory) or 64k (i/o)
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* ss space code
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* b bus number
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* d device number
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* f function number
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* r register number
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* h high 32-bits of PCI address
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* l low 32-bits of PCI address
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*/
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#define OFW_PCI_PHYS_HI_NONRELOCATABLE 0x80000000
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#define OFW_PCI_PHYS_HI_PREFETCHABLE 0x40000000
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#define OFW_PCI_PHYS_HI_ALIASED 0x20000000
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#define OFW_PCI_PHYS_HI_SPACEMASK 0x03000000
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#define OFW_PCI_PHYS_HI_BUSMASK 0x00ff0000
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#define OFW_PCI_PHYS_HI_BUSSHIFT 16
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#define OFW_PCI_PHYS_HI_DEVICEMASK 0x0000f800
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#define OFW_PCI_PHYS_HI_DEVICESHIFT 11
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#define OFW_PCI_PHYS_HI_FUNCTIONMASK 0x00000700
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#define OFW_PCI_PHYS_HI_FUNCTIONSHIFT 8
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#define OFW_PCI_PHYS_HI_REGISTERMASK 0x000000ff
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#define OFW_PCI_PHYS_HI_SPACE_CONFIG 0x00000000
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#define OFW_PCI_PHYS_HI_SPACE_IO 0x01000000
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#define OFW_PCI_PHYS_HI_SPACE_MEM32 0x02000000
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#define OFW_PCI_PHYS_HI_SPACE_MEM64 0x03000000
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#define OFW_PCI_PHYS_HI_BUS(hi) \
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(((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT)
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#define OFW_PCI_PHYS_HI_DEVICE(hi) \
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(((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT)
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#define OFW_PCI_PHYS_HI_FUNCTION(hi) \
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(((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT)
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/*
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* This has the 3 32bit cell values, plus 2 more to make up a 64-bit size.
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*/
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struct ofw_pci_register {
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uint32 phys_hi;
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uint32 phys_mid;
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uint32 phys_lo;
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uint32 size_hi;
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uint32 size_lo;
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};
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#endif /* _KERNEL_OPEN_FIRMWARE_PCI_H */
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