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 #endif /* _XTENSA_PCI_H */ 47