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/* $OpenBSD: ofw_pci.h,v 1.4 2008/06/26 05:42:17 ray Exp $ */
/* $NetBSD: ofw_pci.h,v 1.4 2001/02/17 16:28:37 mrg Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _DEV_OFW_OFW_PCI_H_
#define _DEV_OFW_OFW_PCI_H_
/*
* PCI Bus Binding to:
*
* IEEE Std 1275-1994
* Standard for Boot (Initialization Configuration) Firmware
*
* Revision 2.1
*/
/*
* Section 2.2.1. Physical Address Formats
*
* A PCI physical address is represented by 3 address cells:
*
* phys.hi cell: npt000ss bbbbbbbb dddddfff rrrrrrrr
* phys.mid cell: hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh
* phys.lo cell: llllllll llllllll llllllll llllllll
*
* n nonrelocatable
* p prefetchable
* t aliased below 1MB (memory) or 64k (i/o)
* ss space code
* b bus number
* d device number
* f function number
* r register number
* h high 32-bits of PCI address
* l low 32-bits of PCI address
*/
#define OFW_PCI_PHYS_HI_NONRELOCATABLE 0x80000000
#define OFW_PCI_PHYS_HI_PREFETCHABLE 0x40000000
#define OFW_PCI_PHYS_HI_ALIASED 0x20000000
#define OFW_PCI_PHYS_HI_SPACEMASK 0x03000000
#define OFW_PCI_PHYS_HI_BUSMASK 0x00ff0000
#define OFW_PCI_PHYS_HI_BUSSHIFT 16
#define OFW_PCI_PHYS_HI_DEVICEMASK 0x0000f800
#define OFW_PCI_PHYS_HI_DEVICESHIFT 11
#define OFW_PCI_PHYS_HI_FUNCTIONMASK 0x00000700
#define OFW_PCI_PHYS_HI_FUNCTIONSHIFT 8
#define OFW_PCI_PHYS_HI_REGISTERMASK 0x000000ff
#define OFW_PCI_PHYS_HI_SPACE_CONFIG 0x00000000
#define OFW_PCI_PHYS_HI_SPACE_IO 0x01000000
#define OFW_PCI_PHYS_HI_SPACE_MEM32 0x02000000
#define OFW_PCI_PHYS_HI_SPACE_MEM64 0x03000000
#define OFW_PCI_PHYS_HI_BUS(hi) \
(((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT)
#define OFW_PCI_PHYS_HI_DEVICE(hi) \
(((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT)
#define OFW_PCI_PHYS_HI_FUNCTION(hi) \
(((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT)
/*
* This has the 3 32bit cell values, plus 2 more to make up a 64-bit size.
*/
struct ofw_pci_register {
u_int32_t phys_hi;
u_int32_t phys_mid;
u_int32_t phys_lo;
u_int32_t size_hi;
u_int32_t size_lo;
};
#endif /* _DEV_OFW_OFW_PCI_H_ */
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