Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __ASM_SH64_IO_H |
| 2 | #define __ASM_SH64_IO_H |
| 3 | |
| 4 | /* |
| 5 | * This file is subject to the terms and conditions of the GNU General Public |
| 6 | * License. See the file "COPYING" in the main directory of this archive |
| 7 | * for more details. |
| 8 | * |
| 9 | * include/asm-sh64/io.h |
| 10 | * |
| 11 | * Copyright (C) 2000, 2001 Paolo Alberelli |
| 12 | * Copyright (C) 2003 Paul Mundt |
| 13 | * |
| 14 | */ |
| 15 | |
| 16 | /* |
| 17 | * Convention: |
| 18 | * read{b,w,l}/write{b,w,l} are for PCI, |
| 19 | * while in{b,w,l}/out{b,w,l} are for ISA |
| 20 | * These may (will) be platform specific function. |
| 21 | * |
| 22 | * In addition, we have |
| 23 | * ctrl_in{b,w,l}/ctrl_out{b,w,l} for SuperH specific I/O. |
| 24 | * which are processor specific. Address should be the result of |
| 25 | * onchip_remap(); |
| 26 | */ |
| 27 | |
| 28 | #include <linux/compiler.h> |
| 29 | #include <asm/cache.h> |
| 30 | #include <asm/system.h> |
| 31 | #include <asm/page.h> |
| 32 | #include <asm-generic/iomap.h> |
| 33 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | /* |
| 35 | * Nothing overly special here.. instead of doing the same thing |
| 36 | * over and over again, we just define a set of sh64_in/out functions |
| 37 | * with an implicit size. The traditional read{b,w,l}/write{b,w,l} |
| 38 | * mess is wrapped to this, as are the SH-specific ctrl_in/out routines. |
| 39 | */ |
| 40 | static inline unsigned char sh64_in8(const volatile void __iomem *addr) |
| 41 | { |
| 42 | return *(volatile unsigned char __force *)addr; |
| 43 | } |
| 44 | |
| 45 | static inline unsigned short sh64_in16(const volatile void __iomem *addr) |
| 46 | { |
| 47 | return *(volatile unsigned short __force *)addr; |
| 48 | } |
| 49 | |
| 50 | static inline unsigned int sh64_in32(const volatile void __iomem *addr) |
| 51 | { |
| 52 | return *(volatile unsigned int __force *)addr; |
| 53 | } |
| 54 | |
| 55 | static inline unsigned long long sh64_in64(const volatile void __iomem *addr) |
| 56 | { |
| 57 | return *(volatile unsigned long long __force *)addr; |
| 58 | } |
| 59 | |
| 60 | static inline void sh64_out8(unsigned char b, volatile void __iomem *addr) |
| 61 | { |
| 62 | *(volatile unsigned char __force *)addr = b; |
| 63 | wmb(); |
| 64 | } |
| 65 | |
| 66 | static inline void sh64_out16(unsigned short b, volatile void __iomem *addr) |
| 67 | { |
| 68 | *(volatile unsigned short __force *)addr = b; |
| 69 | wmb(); |
| 70 | } |
| 71 | |
| 72 | static inline void sh64_out32(unsigned int b, volatile void __iomem *addr) |
| 73 | { |
| 74 | *(volatile unsigned int __force *)addr = b; |
| 75 | wmb(); |
| 76 | } |
| 77 | |
| 78 | static inline void sh64_out64(unsigned long long b, volatile void __iomem *addr) |
| 79 | { |
| 80 | *(volatile unsigned long long __force *)addr = b; |
| 81 | wmb(); |
| 82 | } |
| 83 | |
| 84 | #define readb(addr) sh64_in8(addr) |
| 85 | #define readw(addr) sh64_in16(addr) |
| 86 | #define readl(addr) sh64_in32(addr) |
| 87 | #define readb_relaxed(addr) sh64_in8(addr) |
| 88 | #define readw_relaxed(addr) sh64_in16(addr) |
| 89 | #define readl_relaxed(addr) sh64_in32(addr) |
| 90 | |
| 91 | #define writeb(b, addr) sh64_out8(b, addr) |
| 92 | #define writew(b, addr) sh64_out16(b, addr) |
| 93 | #define writel(b, addr) sh64_out32(b, addr) |
| 94 | |
| 95 | #define ctrl_inb(addr) sh64_in8(ioport_map(addr, 1)) |
| 96 | #define ctrl_inw(addr) sh64_in16(ioport_map(addr, 2)) |
| 97 | #define ctrl_inl(addr) sh64_in32(ioport_map(addr, 4)) |
| 98 | |
| 99 | #define ctrl_outb(b, addr) sh64_out8(b, ioport_map(addr, 1)) |
| 100 | #define ctrl_outw(b, addr) sh64_out16(b, ioport_map(addr, 2)) |
| 101 | #define ctrl_outl(b, addr) sh64_out32(b, ioport_map(addr, 4)) |
| 102 | |
| 103 | #define ioread8(addr) sh64_in8(addr) |
| 104 | #define ioread16(addr) sh64_in16(addr) |
| 105 | #define ioread32(addr) sh64_in32(addr) |
| 106 | #define iowrite8(b, addr) sh64_out8(b, addr) |
| 107 | #define iowrite16(b, addr) sh64_out16(b, addr) |
| 108 | #define iowrite32(b, addr) sh64_out32(b, addr) |
| 109 | |
| 110 | #define inb(addr) ctrl_inb(addr) |
| 111 | #define inw(addr) ctrl_inw(addr) |
| 112 | #define inl(addr) ctrl_inl(addr) |
| 113 | #define outb(b, addr) ctrl_outb(b, addr) |
| 114 | #define outw(b, addr) ctrl_outw(b, addr) |
| 115 | #define outl(b, addr) ctrl_outl(b, addr) |
| 116 | |
| 117 | void outsw(unsigned long port, const void *addr, unsigned long count); |
| 118 | void insw(unsigned long port, void *addr, unsigned long count); |
| 119 | void outsl(unsigned long port, const void *addr, unsigned long count); |
| 120 | void insl(unsigned long port, void *addr, unsigned long count); |
| 121 | |
Paul Mundt | 1ef7cbb | 2007-10-01 16:13:28 +0900 | [diff] [blame] | 122 | #define inb_p(addr) inb(addr) |
| 123 | #define inw_p(addr) inw(addr) |
| 124 | #define inl_p(addr) inl(addr) |
| 125 | #define outb_p(x,addr) outb(x,addr) |
| 126 | #define outw_p(x,addr) outw(x,addr) |
| 127 | #define outl_p(x,addr) outl(x,addr) |
| 128 | |
Paul Mundt | 2126413 | 2006-09-12 14:36:46 +0900 | [diff] [blame] | 129 | #define __raw_readb readb |
| 130 | #define __raw_readw readw |
| 131 | #define __raw_readl readl |
| 132 | #define __raw_writeb writeb |
| 133 | #define __raw_writew writew |
| 134 | #define __raw_writel writel |
| 135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | void memcpy_toio(void __iomem *to, const void *from, long count); |
| 137 | void memcpy_fromio(void *to, void __iomem *from, long count); |
| 138 | |
| 139 | #define mmiowb() |
| 140 | |
| 141 | #ifdef __KERNEL__ |
| 142 | |
| 143 | #ifdef CONFIG_SH_CAYMAN |
| 144 | extern unsigned long smsc_superio_virt; |
| 145 | #endif |
| 146 | #ifdef CONFIG_PCI |
| 147 | extern unsigned long pciio_virt; |
| 148 | #endif |
| 149 | |
| 150 | #define IO_SPACE_LIMIT 0xffffffff |
| 151 | |
| 152 | /* |
| 153 | * Change virtual addresses to physical addresses and vv. |
| 154 | * These are trivial on the 1:1 Linux/SuperH mapping |
| 155 | */ |
Adrian Bunk | ca5ed2f | 2006-01-09 20:54:47 -0800 | [diff] [blame] | 156 | static inline unsigned long virt_to_phys(volatile void * address) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | { |
| 158 | return __pa(address); |
| 159 | } |
| 160 | |
Adrian Bunk | ca5ed2f | 2006-01-09 20:54:47 -0800 | [diff] [blame] | 161 | static inline void * phys_to_virt(unsigned long address) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | { |
| 163 | return __va(address); |
| 164 | } |
| 165 | |
| 166 | extern void * __ioremap(unsigned long phys_addr, unsigned long size, |
| 167 | unsigned long flags); |
| 168 | |
Adrian Bunk | ca5ed2f | 2006-01-09 20:54:47 -0800 | [diff] [blame] | 169 | static inline void * ioremap(unsigned long phys_addr, unsigned long size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | { |
| 171 | return __ioremap(phys_addr, size, 1); |
| 172 | } |
| 173 | |
Adrian Bunk | ca5ed2f | 2006-01-09 20:54:47 -0800 | [diff] [blame] | 174 | static inline void * ioremap_nocache (unsigned long phys_addr, unsigned long size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | { |
| 176 | return __ioremap(phys_addr, size, 0); |
| 177 | } |
| 178 | |
| 179 | extern void iounmap(void *addr); |
| 180 | |
| 181 | unsigned long onchip_remap(unsigned long addr, unsigned long size, const char* name); |
| 182 | extern void onchip_unmap(unsigned long vaddr); |
| 183 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | * Convert a physical pointer to a virtual kernel pointer for /dev/mem |
| 186 | * access |
| 187 | */ |
| 188 | #define xlate_dev_mem_ptr(p) __va(p) |
| 189 | |
| 190 | /* |
| 191 | * Convert a virtual cached pointer to an uncached pointer |
| 192 | */ |
| 193 | #define xlate_dev_kmem_ptr(p) p |
| 194 | |
| 195 | #endif /* __KERNEL__ */ |
| 196 | #endif /* __ASM_SH64_IO_H */ |