arch/xtensa/include/asm/pci.h

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