| 1 | /* |
| 2 | * linux/include/asm-m68k/cf_io.h |
| 3 | * |
| 4 | * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved. |
| 5 | * 9/30/08 JKM - Separated Coldfire pieces out from m68k. |
| 6 | */ |
| 7 | |
| 8 | #ifndef __CF_IO__ |
| 9 | #define __CF_IO__ |
| 10 | |
| 11 | #ifdef __KERNEL__ |
| 12 | |
| 13 | #include <linux/compiler.h> |
| 14 | #include <asm/raw_io.h> |
| 15 | #include <asm/virtconvert.h> |
| 16 | |
| 17 | #include <asm-generic/iomap.h> |
| 18 | |
| 19 | /* |
| 20 | * These should be valid on any ioremap()ed region |
| 21 | */ |
| 22 | #define readb(addr) in_8(addr) |
| 23 | #define writeb(val,addr) out_8((addr),(val)) |
| 24 | #define readw(addr) in_le16(addr) |
| 25 | #define writew(val,addr) out_le16((addr),(val)) |
| 26 | #define readl(addr) in_le32(addr) |
| 27 | #define writel(val,addr) out_le32((addr),(val)) |
| 28 | |
| 29 | #define readb_relaxed(addr) readb(addr) |
| 30 | #define readw_relaxed(addr) readw(addr) |
| 31 | #define readl_relaxed(addr) readl(addr) |
| 32 | |
| 33 | #ifdef CONFIG_PCI |
| 34 | |
| 35 | /* |
| 36 | * IO space in Coldfire |
| 37 | */ |
| 38 | /*#define HAVE_ARCH_PIO_SIZE 1 |
| 39 | #define PIO_OFFSET 0x00000000UL |
| 40 | #define PIO_RESERVED 0x100000000UL |
| 41 | #define PIO_MASK (PIO_RESERVED - 1) |
| 42 | */ |
| 43 | #define inb_p inb |
| 44 | #define inw_p inw |
| 45 | #define inl_p inl |
| 46 | #define outb_p outb |
| 47 | #define outw_p outw |
| 48 | #define outl_p outl |
| 49 | |
| 50 | #ifndef CONFIG_COLDFIRE |
| 51 | #define inb(port) in_8(port) |
| 52 | #define outb(val,port) out_8((port),(val)) |
| 53 | #define inw(port) in_le16(port) |
| 54 | #define outw(val,port) out_le16((port),(val)) |
| 55 | #define inl(port) in_le32(port) |
| 56 | #define outl(val,port) out_le32((port),(val)) |
| 57 | #define insb(port, buf, nr) \ |
| 58 | raw_insb((u8 *)(port), (u8 *)(buf), (nr)) |
| 59 | #define outsb(port, buf, nr) \ |
| 60 | raw_outsb((u8 *)(port), (u8 *)(buf), (nr)) |
| 61 | #define insw(port, buf, nr) \ |
| 62 | raw_insw_swapw((u16 *)(port), (u16 *)(buf), (nr)) |
| 63 | #define outsw(port, buf, nr) \ |
| 64 | raw_outsw_swapw((u16 *)(port), (u16 *)(buf), (nr)) |
| 65 | #define insl(port, buf, nr) \ |
| 66 | raw_insw_swapw((u16 *)(port), (u16 *)(buf), (nr)<<1) |
| 67 | #define outsl(port, buf, nr) \ |
| 68 | raw_outsw_swapw((u16 *)(port), (u16 *)(buf), (nr)<<1) |
| 69 | #else |
| 70 | #define inb(port) pci_inb(port) |
| 71 | #define outb(val, port) pci_outb((val), (port)) |
| 72 | #define inw(port) pci_inw(port) |
| 73 | #define outw(val, port) pci_outw((val), (port)) |
| 74 | #define insb(a, b, c) \ |
| 75 | pci_insb((volatile unsigned char *)a, (unsigned char *)b, c) |
| 76 | #define insw(a, b, c) \ |
| 77 | pci_insw((volatile unsigned short *)a, (const unsigned short *)b, c) |
| 78 | #define insl(a, b, c) \ |
| 79 | pci_insl((volatile unsigned long *)a, (const unsigned long *)b, c) |
| 80 | #define outsb(a, b, c) \ |
| 81 | pci_outsb((volatile unsigned char *)a, (const unsigned char *)b, c) |
| 82 | #define outsw(a, b, c) \ |
| 83 | pci_outsw((volatile unsigned short *)a, (const unsigned short *)b, c) |
| 84 | #define outsl(a, b, c) \ |
| 85 | pci_outsl((volatile unsigned long *)a, (const unsigned long *)b, c) |
| 86 | #define inl(port) pci_inl(port) |
| 87 | #define outl(val, port) pci_outl((val), (port)) |
| 88 | #endif |
| 89 | |
| 90 | #else |
| 91 | /* no pci */ |
| 92 | |
| 93 | #define inb(port) in_8(port) |
| 94 | #define outb(val, port) out_8((port), (val)) |
| 95 | #define inw(port) in_le16(port) |
| 96 | #define outw(val, port) out_le16((port), (val)) |
| 97 | #define inl(port) in_le32(port) |
| 98 | #define outl(val, port) out_le32((port), (val)) |
| 99 | #define insb(port, buf, nr) \ |
| 100 | raw_insb((u8 *)(port), (u8 *)(buf), (nr)) |
| 101 | #define outsb(port, buf, nr) \ |
| 102 | raw_outsb((u8 *)(port), (u8 *)(buf), (nr)) |
| 103 | #define insw(port, buf, nr) \ |
| 104 | raw_insw_swapw((u16 *)(port), (u16 *)(buf), (nr)) |
| 105 | #define outsw(port, buf, nr) \ |
| 106 | raw_outsw_swapw((u16 *)(port), (u16 *)(buf), (nr)) |
| 107 | #define insl(port, buf, nr) \ |
| 108 | raw_insw_swapw((u16 *)(port), (u16 *)(buf), (nr)<<1) |
| 109 | #define outsl(port, buf, nr) \ |
| 110 | raw_outsw_swapw((u16 *)(port), (u16 *)(buf), (nr)<<1) |
| 111 | |
| 112 | #endif /* CONFIG_PCI */ |
| 113 | |
| 114 | #define mmiowb() |
| 115 | |
| 116 | static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size) |
| 117 | { |
| 118 | return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); |
| 119 | } |
| 120 | static inline void __iomem *ioremap_nocache(unsigned long physaddr, unsigned long size) |
| 121 | { |
| 122 | return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); |
| 123 | } |
| 124 | static inline void __iomem *ioremap_writethrough(unsigned long physaddr, |
| 125 | unsigned long size) |
| 126 | { |
| 127 | return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); |
| 128 | } |
| 129 | static inline void __iomem *ioremap_fullcache(unsigned long physaddr, |
| 130 | unsigned long size) |
| 131 | { |
| 132 | return __ioremap(physaddr, size, IOMAP_FULL_CACHING); |
| 133 | } |
| 134 | |
| 135 | static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count) |
| 136 | { |
| 137 | __builtin_memset((void __force *) addr, val, count); |
| 138 | } |
| 139 | static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, int count) |
| 140 | { |
| 141 | __builtin_memcpy(dst, (void __force *) src, count); |
| 142 | } |
| 143 | static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count) |
| 144 | { |
| 145 | __builtin_memcpy((void __force *) dst, src, count); |
| 146 | } |
| 147 | |
| 148 | #define IO_SPACE_LIMIT 0xffffffff |
| 149 | |
| 150 | #endif /* __KERNEL__ */ |
| 151 | |
| 152 | #define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1 |
| 153 | |
| 154 | /* |
| 155 | * Convert a physical pointer to a virtual kernel pointer for /dev/mem |
| 156 | * access |
| 157 | */ |
| 158 | #define xlate_dev_mem_ptr(p) __va(p) |
| 159 | |
| 160 | /* |
| 161 | * Convert a virtual cached pointer to an uncached pointer |
| 162 | */ |
| 163 | #define xlate_dev_kmem_ptr(p) p |
| 164 | |
| 165 | #define __raw_readb(addr) \ |
| 166 | ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; }) |
| 167 | #define __raw_readw(addr) \ |
| 168 | ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; }) |
| 169 | #define __raw_readl(addr) \ |
| 170 | ({ unsigned long __v = (*(volatile unsigned long *) (addr)); __v; }) |
| 171 | #define __raw_writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b)) |
| 172 | #define __raw_writew(b,addr) (void)((*(volatile unsigned short *) (addr)) = (b)) |
| 173 | #define __raw_writel(b,addr) (void)((*(volatile unsigned int *) (addr)) = (b)) |
| 174 | |
| 175 | #define memset_io(a, b, c) memset((void *)(a), (b), (c)) |
| 176 | #define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c)) |
| 177 | #define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c)) |
| 178 | |
| 179 | #if !defined(readb) |
| 180 | #define readb(addr) \ |
| 181 | ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; }) |
| 182 | #define readw(addr) \ |
| 183 | ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; }) |
| 184 | #define readl(addr) \ |
| 185 | ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; }) |
| 186 | #define writeb(b, addr) (void)((*(volatile unsigned char *) (addr)) = (b)) |
| 187 | #define writew(b, addr) (void)((*(volatile unsigned short *) (addr)) = (b)) |
| 188 | #define writel(b, addr) (void)((*(volatile unsigned int *) (addr)) = (b)) |
| 189 | #endif /* readb */ |
| 190 | |
| 191 | #endif /* _IO_H */ |
| 192 | |
