| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 46 | /* Generic PCI */ |
| 47 | #include <asm-generic/pci.h> |
| 48 | |
| 49 | #endif /* _XTENSA_PCI_H */ |