projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 9a8fd558 | 1 | /* |
| 173d6681 | 2 | * include/asm-xtensa/io.h |
| 9a8fd558 CZ |
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_IO_H | |
| 12 | #define _XTENSA_IO_H | |
| 13 | ||
| 9a8fd558 | 14 | #include <asm/byteorder.h> |
| c51aea80 | 15 | #include <asm/page.h> |
| 4809bb46 | 16 | #include <asm/vectors.h> |
| bfae8ee8 | 17 | #include <linux/bug.h> |
| 6656920b | 18 | #include <linux/kernel.h> |
| ca6c1af3 | 19 | #include <linux/pgtable.h> |
| 9a8fd558 CZ |
20 | |
| 21 | #include <linux/types.h> | |
| 9a8fd558 | 22 | |
| 00c81d23 | 23 | #define IOADDR(x) (XCHAL_KIO_BYPASS_VADDR + (x)) |
| d38efc1f | 24 | #define IO_SPACE_LIMIT ~0 |
| 982792f4 | 25 | #define PCI_IOBASE ((void __iomem *)XCHAL_KIO_BYPASS_VADDR) |
| 9a8fd558 | 26 | |
| d38efc1f | 27 | #ifdef CONFIG_MMU |
| 9a8fd558 | 28 | /* |
| ca6c1af3 | 29 | * I/O memory mapping functions. |
| 9a8fd558 | 30 | */ |
| ca6c1af3 BH |
31 | void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size, |
| 32 | unsigned long prot); | |
| 33 | #define ioremap_prot ioremap_prot | |
| 34 | #define iounmap iounmap | |
| 35 | ||
| ab53cea4 | 36 | static inline void __iomem *ioremap(unsigned long offset, unsigned long size) |
| 9a8fd558 | 37 | { |
| 173d6681 | 38 | if (offset >= XCHAL_KIO_PADDR |
| 02f37748 | 39 | && offset - XCHAL_KIO_PADDR < XCHAL_KIO_SIZE) |
| 173d6681 | 40 | return (void*)(offset-XCHAL_KIO_PADDR+XCHAL_KIO_BYPASS_VADDR); |
| 173d6681 | 41 | else |
| ca6c1af3 BH |
42 | return ioremap_prot(offset, size, |
| 43 | pgprot_val(pgprot_noncached(PAGE_KERNEL))); | |
| 9a8fd558 | 44 | } |
| ca6c1af3 | 45 | #define ioremap ioremap |
| 9a8fd558 | 46 | |
| 02f37748 MF |
47 | static inline void __iomem *ioremap_cache(unsigned long offset, |
| 48 | unsigned long size) | |
| 9a8fd558 | 49 | { |
| 173d6681 | 50 | if (offset >= XCHAL_KIO_PADDR |
| 02f37748 | 51 | && offset - XCHAL_KIO_PADDR < XCHAL_KIO_SIZE) |
| 173d6681 CZ |
52 | return (void*)(offset-XCHAL_KIO_PADDR+XCHAL_KIO_CACHED_VADDR); |
| 53 | else | |
| ca6c1af3 | 54 | return ioremap_prot(offset, size, pgprot_val(PAGE_KERNEL)); |
| 02f37748 | 55 | |
| 9a8fd558 | 56 | } |
| ca6c1af3 | 57 | #define ioremap_cache ioremap_cache |
| d38efc1f | 58 | #endif /* CONFIG_MMU */ |
| 9a8fd558 | 59 | |
| d38efc1f MF |
60 | #include <asm-generic/io.h> |
| 61 | ||
| 9a8fd558 | 62 | #endif /* _XTENSA_IO_H */ |