projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 6b8baec4 LFT |
1 | /* |
| 2 | * Copyright (C) 2014 Altera Corporation | |
| 3 | * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch> | |
| 4 | * Copyright (C) 2004 Microtronix Datacom Ltd. | |
| 5 | * | |
| 6 | * This file is subject to the terms and conditions of the GNU General Public | |
| 7 | * License. See the file "COPYING" in the main directory of this archive | |
| 8 | * for more details. | |
| 9 | */ | |
| 10 | ||
| 11 | #ifndef _ASM_NIOS2_IO_H | |
| 12 | #define _ASM_NIOS2_IO_H | |
| 13 | ||
| 61810325 | 14 | #include <linux/types.h> |
| 6b8baec4 | 15 | #include <asm/pgtable-bits.h> |
| 6b8baec4 LFT |
16 | |
| 17 | /* PCI is not supported in nios2, set this to 0. */ | |
| 18 | #define IO_SPACE_LIMIT 0 | |
| 19 | ||
| 20 | #define readb_relaxed(addr) readb(addr) | |
| 21 | #define readw_relaxed(addr) readw(addr) | |
| 22 | #define readl_relaxed(addr) readl(addr) | |
| 23 | ||
| 24 | #define writeb_relaxed(x, addr) writeb(x, addr) | |
| 25 | #define writew_relaxed(x, addr) writew(x, addr) | |
| 26 | #define writel_relaxed(x, addr) writel(x, addr) | |
| 27 | ||
| 6b8baec4 LFT |
28 | extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size, |
| 29 | unsigned long cacheflag); | |
| 30 | extern void __iounmap(void __iomem *addr); | |
| 31 | ||
| 32 | static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size) | |
| 33 | { | |
| 34 | return __ioremap(physaddr, size, 0); | |
| 35 | } | |
| 36 | ||
| 37 | static inline void __iomem *ioremap_nocache(unsigned long physaddr, | |
| 38 | unsigned long size) | |
| 39 | { | |
| 40 | return __ioremap(physaddr, size, 0); | |
| 41 | } | |
| 42 | ||
| 43 | static inline void iounmap(void __iomem *addr) | |
| 44 | { | |
| 45 | __iounmap(addr); | |
| 46 | } | |
| 47 | ||
| 76367a52 | 48 | #define ioremap_wc ioremap_nocache |
| 556269c1 | 49 | #define ioremap_wt ioremap_nocache |
| 76367a52 | 50 | |
| 6b8baec4 | 51 | /* Pages to physical address... */ |
| 568f6ba0 | 52 | #define page_to_phys(page) virt_to_phys(page_to_virt(page)) |
| 6b8baec4 LFT |
53 | |
| 54 | /* Macros used for converting between virtual and physical mappings. */ | |
| 568f6ba0 | 55 | #define phys_to_virt(vaddr) \ |
| 6b8baec4 LFT |
56 | ((void *)((unsigned long)(vaddr) | CONFIG_NIOS2_KERNEL_REGION_BASE)) |
| 57 | /* Clear top 3 bits */ | |
| 568f6ba0 | 58 | #define virt_to_phys(vaddr) \ |
| 6b8baec4 LFT |
59 | ((unsigned long)((unsigned long)(vaddr) & ~0xE0000000)) |
| 60 | ||
| 065a1134 LFT |
61 | #include <asm-generic/io.h> |
| 62 | ||
| 6b8baec4 | 63 | #endif /* _ASM_NIOS2_IO_H */ |