Vineet Gupta | 1162b07 | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
| 9 | #ifndef _ASM_ARC_IO_H |
| 10 | #define _ASM_ARC_IO_H |
| 11 | |
| 12 | #include <linux/types.h> |
| 13 | #include <asm/byteorder.h> |
| 14 | #include <asm/page.h> |
| 15 | |
| 16 | #define PCI_IOBASE ((void __iomem *)0) |
| 17 | |
| 18 | extern void __iomem *ioremap(unsigned long physaddr, unsigned long size); |
Gilad Ben-Yossef | 4368902 | 2013-01-22 16:48:45 +0530 | [diff] [blame] | 19 | extern void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size, |
| 20 | unsigned long flags); |
Vineet Gupta | 1162b07 | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 21 | extern void iounmap(const void __iomem *addr); |
| 22 | |
| 23 | #define ioremap_nocache(phy, sz) ioremap(phy, sz) |
| 24 | #define ioremap_wc(phy, sz) ioremap(phy, sz) |
| 25 | |
| 26 | /* Change struct page to physical address */ |
| 27 | #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) |
| 28 | |
| 29 | #define __raw_readb __raw_readb |
| 30 | static inline u8 __raw_readb(const volatile void __iomem *addr) |
| 31 | { |
| 32 | u8 b; |
| 33 | |
| 34 | __asm__ __volatile__( |
| 35 | " ldb%U1 %0, %1 \n" |
| 36 | : "=r" (b) |
| 37 | : "m" (*(volatile u8 __force *)addr) |
| 38 | : "memory"); |
| 39 | |
| 40 | return b; |
| 41 | } |
| 42 | |
| 43 | #define __raw_readw __raw_readw |
| 44 | static inline u16 __raw_readw(const volatile void __iomem *addr) |
| 45 | { |
| 46 | u16 s; |
| 47 | |
| 48 | __asm__ __volatile__( |
| 49 | " ldw%U1 %0, %1 \n" |
| 50 | : "=r" (s) |
| 51 | : "m" (*(volatile u16 __force *)addr) |
| 52 | : "memory"); |
| 53 | |
| 54 | return s; |
| 55 | } |
| 56 | |
| 57 | #define __raw_readl __raw_readl |
| 58 | static inline u32 __raw_readl(const volatile void __iomem *addr) |
| 59 | { |
| 60 | u32 w; |
| 61 | |
| 62 | __asm__ __volatile__( |
| 63 | " ld%U1 %0, %1 \n" |
| 64 | : "=r" (w) |
| 65 | : "m" (*(volatile u32 __force *)addr) |
| 66 | : "memory"); |
| 67 | |
| 68 | return w; |
| 69 | } |
| 70 | |
| 71 | #define __raw_writeb __raw_writeb |
| 72 | static inline void __raw_writeb(u8 b, volatile void __iomem *addr) |
| 73 | { |
| 74 | __asm__ __volatile__( |
| 75 | " stb%U1 %0, %1 \n" |
| 76 | : |
| 77 | : "r" (b), "m" (*(volatile u8 __force *)addr) |
| 78 | : "memory"); |
| 79 | } |
| 80 | |
| 81 | #define __raw_writew __raw_writew |
| 82 | static inline void __raw_writew(u16 s, volatile void __iomem *addr) |
| 83 | { |
| 84 | __asm__ __volatile__( |
| 85 | " stw%U1 %0, %1 \n" |
| 86 | : |
| 87 | : "r" (s), "m" (*(volatile u16 __force *)addr) |
| 88 | : "memory"); |
| 89 | |
| 90 | } |
| 91 | |
| 92 | #define __raw_writel __raw_writel |
| 93 | static inline void __raw_writel(u32 w, volatile void __iomem *addr) |
| 94 | { |
| 95 | __asm__ __volatile__( |
| 96 | " st%U1 %0, %1 \n" |
| 97 | : |
| 98 | : "r" (w), "m" (*(volatile u32 __force *)addr) |
| 99 | : "memory"); |
| 100 | |
| 101 | } |
| 102 | |
Mischa Jonker | 6532b02 | 2013-08-28 20:32:50 +0200 | [diff] [blame^] | 103 | #define readb_relaxed readb |
| 104 | #define readw_relaxed readw |
| 105 | #define readl_relaxed readl |
| 106 | |
Vineet Gupta | 1162b07 | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 107 | #include <asm-generic/io.h> |
| 108 | |
| 109 | #endif /* _ASM_ARC_IO_H */ |