1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * linux/include/asm-xtensa/pci.h 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General Public 5*4882a593Smuzhiyun * License. See the file "COPYING" in the main directory of this archive 6*4882a593Smuzhiyun * for more details. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Copyright (C) 2001 - 2005 Tensilica Inc. 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #ifndef _XTENSA_PCI_H 12*4882a593Smuzhiyun #define _XTENSA_PCI_H 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* Can be used to override the logic in pci_scan_bus for skipping 15*4882a593Smuzhiyun * already-configured bus numbers - to be used for buggy BIOSes 16*4882a593Smuzhiyun * or architectures with incomplete PCI setup by the loader 17*4882a593Smuzhiyun */ 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #define pcibios_assign_all_busses() 0 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun /* Assume some values. (We should revise them, if necessary) */ 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #define PCIBIOS_MIN_IO 0x2000 24*4882a593Smuzhiyun #define PCIBIOS_MIN_MEM 0x10000000 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun /* Dynamic DMA mapping stuff. 27*4882a593Smuzhiyun * Xtensa has everything mapped statically like x86. 28*4882a593Smuzhiyun */ 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun #include <linux/types.h> 31*4882a593Smuzhiyun #include <linux/slab.h> 32*4882a593Smuzhiyun #include <linux/scatterlist.h> 33*4882a593Smuzhiyun #include <linux/string.h> 34*4882a593Smuzhiyun #include <asm/io.h> 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun /* The PCI address space does equal the physical memory address space. 37*4882a593Smuzhiyun * The networking and block device layers use this boolean for bounce buffer 38*4882a593Smuzhiyun * decisions. 39*4882a593Smuzhiyun */ 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun /* Tell PCI code what kind of PCI resource mappings we support */ 42*4882a593Smuzhiyun #define HAVE_PCI_MMAP 1 43*4882a593Smuzhiyun #define ARCH_GENERIC_PCI_MMAP_RESOURCE 1 44*4882a593Smuzhiyun #define arch_can_pci_mmap_io() 1 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /* Generic PCI */ 47*4882a593Smuzhiyun #include <asm-generic/pci.h> 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun #endif /* _XTENSA_PCI_H */ 50