arch/mips/include/asm/octeon/pci-octeon.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2005-2009 Cavium Networks
   7  */
   8
   9 #ifndef __PCI_OCTEON_H__
  10 #define __PCI_OCTEON_H__
  11
  12 #include <linux/pci.h>
  13
  14 /* Some PCI cards require delays when accessing config space. */
  15 #define PCI_CONFIG_SPACE_DELAY 10000
  16
  17 /*
  18  * pcibios_map_irq() is defined inside pci-octeon.c. All it does is
  19  * call the Octeon specific version pointed to by this variable. This
  20  * function needs to change for PCI or PCIe based hosts.
  21  */
  22 extern int (*octeon_pcibios_map_irq)(const struct pci_dev *dev,
  23                                      u8 slot, u8 pin);
  24
  25 /*
  26  * The following defines are used when octeon_dma_bar_type =
  27  * OCTEON_DMA_BAR_TYPE_BIG
  28  */
  29 #define OCTEON_PCI_BAR1_HOLE_BITS 5
  30 #define OCTEON_PCI_BAR1_HOLE_SIZE (1ul<<(OCTEON_PCI_BAR1_HOLE_BITS+3))
  31
  32 enum octeon_dma_bar_type {
  33         OCTEON_DMA_BAR_TYPE_INVALID,
  34         OCTEON_DMA_BAR_TYPE_SMALL,
  35         OCTEON_DMA_BAR_TYPE_BIG,
  36         OCTEON_DMA_BAR_TYPE_PCIE
  37 };
  38
  39 /*
  40  * This tells the DMA mapping system in dma-octeon.c how to map PCI
  41  * DMA addresses.
  42  */
  43 extern enum octeon_dma_bar_type octeon_dma_bar_type;
  44
  45 #endif