162306a36Sopenharmony_ci/* 262306a36Sopenharmony_ci * linux/include/asm-xtensa/pci.h 362306a36Sopenharmony_ci * 462306a36Sopenharmony_ci * This file is subject to the terms and conditions of the GNU General Public 562306a36Sopenharmony_ci * License. See the file "COPYING" in the main directory of this archive 662306a36Sopenharmony_ci * for more details. 762306a36Sopenharmony_ci * 862306a36Sopenharmony_ci * Copyright (C) 2001 - 2005 Tensilica Inc. 962306a36Sopenharmony_ci */ 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#ifndef _XTENSA_PCI_H 1262306a36Sopenharmony_ci#define _XTENSA_PCI_H 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci/* Can be used to override the logic in pci_scan_bus for skipping 1562306a36Sopenharmony_ci * already-configured bus numbers - to be used for buggy BIOSes 1662306a36Sopenharmony_ci * or architectures with incomplete PCI setup by the loader 1762306a36Sopenharmony_ci */ 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ci#define pcibios_assign_all_busses() 0 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_ci/* Assume some values. (We should revise them, if necessary) */ 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci#define PCIBIOS_MIN_IO 0x2000 2462306a36Sopenharmony_ci#define PCIBIOS_MIN_MEM 0x10000000 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ci/* Dynamic DMA mapping stuff. 2762306a36Sopenharmony_ci * Xtensa has everything mapped statically like x86. 2862306a36Sopenharmony_ci */ 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci#include <linux/types.h> 3162306a36Sopenharmony_ci#include <linux/slab.h> 3262306a36Sopenharmony_ci#include <linux/scatterlist.h> 3362306a36Sopenharmony_ci#include <linux/string.h> 3462306a36Sopenharmony_ci#include <asm/io.h> 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci/* The PCI address space does equal the physical memory address space. 3762306a36Sopenharmony_ci * The networking and block device layers use this boolean for bounce buffer 3862306a36Sopenharmony_ci * decisions. 3962306a36Sopenharmony_ci */ 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ci/* Tell PCI code what kind of PCI resource mappings we support */ 4262306a36Sopenharmony_ci#define HAVE_PCI_MMAP 1 4362306a36Sopenharmony_ci#define ARCH_GENERIC_PCI_MMAP_RESOURCE 1 4462306a36Sopenharmony_ci#define arch_can_pci_mmap_io() 1 4562306a36Sopenharmony_ci 4662306a36Sopenharmony_ci#endif /* _XTENSA_PCI_H */ 47