/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 */
22extern 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
32enum 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 */
43extern enum octeon_dma_bar_type octeon_dma_bar_type;
44
45#endif