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Diffstat (limited to 'arch/avr32/include/asm/io.h')
| -rw-r--r-- | arch/avr32/include/asm/io.h | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/arch/avr32/include/asm/io.h b/arch/avr32/include/asm/io.h deleted file mode 100644 index f855646e0db7..000000000000 --- a/arch/avr32/include/asm/io.h +++ /dev/null @@ -1,329 +0,0 @@ -#ifndef __ASM_AVR32_IO_H -#define __ASM_AVR32_IO_H - -#include <linux/bug.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/types.h> - -#include <asm/addrspace.h> -#include <asm/byteorder.h> - -#include <mach/io.h> - -/* virt_to_phys will only work when address is in P1 or P2 */ -static __inline__ unsigned long virt_to_phys(volatile void *address) -{ - return PHYSADDR(address); -} - -static __inline__ void * phys_to_virt(unsigned long address) -{ - return (void *)P1SEGADDR(address); -} - -#define cached_to_phys(addr) ((unsigned long)PHYSADDR(addr)) -#define uncached_to_phys(addr) ((unsigned long)PHYSADDR(addr)) -#define phys_to_cached(addr) ((void *)P1SEGADDR(addr)) -#define phys_to_uncached(addr) ((void *)P2SEGADDR(addr)) - -/* - * Generic IO read/write. These perform native-endian accesses. Note - * that some architectures will want to re-define __raw_{read,write}w. - */ -extern void __raw_writesb(void __iomem *addr, const void *data, int bytelen); -extern void __raw_writesw(void __iomem *addr, const void *data, int wordlen); -extern void __raw_writesl(void __iomem *addr, const void *data, int longlen); - -extern void __raw_readsb(const void __iomem *addr, void *data, int bytelen); -extern void __raw_readsw(const void __iomem *addr, void *data, int wordlen); -extern void __raw_readsl(const void __iomem *addr, void *data, int longlen); - -static inline void __raw_writeb(u8 v, volatile void __iomem *addr) -{ - *(volatile u8 __force *)addr = v; -} -static inline void __raw_writew(u16 v, volatile void __iomem *addr) -{ - *(volatile u16 __force *)addr = v; -} -static inline void __raw_writel(u32 v, volatile void __iomem *addr) -{ - *(volatile u32 __force *)addr = v; -} - -static inline u8 __raw_readb(const volatile void __iomem *addr) -{ - return *(const volatile u8 __force *)addr; -} -static inline u16 __raw_readw(const volatile void __iomem *addr) -{ - return *(const volatile u16 __force *)addr; -} -static inline u32 __raw_readl(const volatile void __iomem *addr) -{ - return *(const volatile u32 __force *)addr; -} - -/* Convert I/O port address to virtual address */ -#ifndef __io -# define __io(p) ((void *)phys_to_uncached(p)) -#endif - -/* - * Not really sure about the best way to slow down I/O on - * AVR32. Defining it as a no-op until we have an actual test case. - */ -#define SLOW_DOWN_IO do { } while (0) - -#define __BUILD_MEMORY_SINGLE(pfx, bwl, type) \ -static inline void \ -pfx##write##bwl(type val, volatile void __iomem *addr) \ -{ \ - volatile type *__addr; \ - type __val; \ - \ - __addr = (void *)__swizzle_addr_##bwl((unsigned long)(addr)); \ - __val = pfx##ioswab##bwl(__addr, val); \ - \ - BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long)); \ - \ - *__addr = __val; \ -} \ - \ -static inline type pfx##read##bwl(const volatile void __iomem *addr) \ -{ \ - volatile type *__addr; \ - type __val; \ - \ - __addr = (void *)__swizzle_addr_##bwl((unsigned long)(addr)); \ - \ - BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long)); \ - \ - __val = *__addr; \ - return pfx##ioswab##bwl(__addr, __val); \ -} - -#define __BUILD_IOPORT_SINGLE(pfx, bwl, type, p, slow) \ -static inline void pfx##out##bwl##p(type val, unsigned long port) \ -{ \ - volatile type *__addr; \ - type __val; \ - \ - __addr = __io(__swizzle_addr_##bwl(port)); \ - __val = pfx##ioswab##bwl(__addr, val); \ - \ - BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long)); \ - \ - *__addr = __val; \ - slow; \ -} \ - \ -static inline type pfx##in##bwl##p(unsigned long port) \ -{ \ - volatile type *__addr; \ - type __val; \ - \ - __addr = __io(__swizzle_addr_##bwl(port)); \ - \ - BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long)); \ - \ - __val = *__addr; \ - slow; \ - \ - return pfx##ioswab##bwl(__addr, __val); \ -} - -#define __BUILD_MEMORY_PFX(bus, bwl, type) \ - __BUILD_MEMORY_SINGLE(bus, bwl, type) - -#define BUILDIO_MEM(bwl, type) \ - __BUILD_MEMORY_PFX(, bwl, type) \ - __BUILD_MEMORY_PFX(__mem_, bwl, type) - -#define __BUILD_IOPORT_PFX(bus, bwl, type) \ - __BUILD_IOPORT_SINGLE(bus, bwl, type, ,) \ - __BUILD_IOPORT_SINGLE(bus, bwl, type, _p, SLOW_DOWN_IO) - -#define BUILDIO_IOPORT(bwl, type) \ - __BUILD_IOPORT_PFX(, bwl, type) \ - __BUILD_IOPORT_PFX(__mem_, bwl, type) - -BUILDIO_MEM(b, u8) -BUILDIO_MEM(w, u16) -BUILDIO_MEM(l, u32) - -BUILDIO_IOPORT(b, u8) -BUILDIO_IOPORT(w, u16) -BUILDIO_IOPORT(l, u32) - -#define readb_relaxed readb -#define readw_relaxed readw -#define readl_relaxed readl - -#define readb_be __raw_readb -#define readw_be __raw_readw -#define readl_be __raw_readl - -#define writeb_relaxed writeb -#define writew_relaxed writew -#define writel_relaxed writel - -#define writeb_be __raw_writeb -#define writew_be __raw_writew -#define writel_be __raw_writel - -#define __BUILD_MEMORY_STRING(bwl, type) \ -static inline void writes##bwl(volatile void __iomem *addr, \ - const void *data, unsigned int count) \ -{ \ - const type *__data = data; \ - \ - while (count--) \ - __mem_write##bwl(*__data++, addr); \ -} \ - \ -static inline void reads##bwl(const volatile void __iomem *addr, \ - void *data, unsigned int count) \ -{ \ - type *__data = data; \ - \ - while (count--) \ - *__data++ = __mem_read##bwl(addr); \ -} - -#define __BUILD_IOPORT_STRING(bwl, type) \ -static inline void outs##bwl(unsigned long port, const void *data, \ - unsigned int count) \ -{ \ - const type *__data = data; \ - \ - while (count--) \ - __mem_out##bwl(*__data++, port); \ -} \ - \ -static inline void ins##bwl(unsigned long port, void *data, \ - unsigned int count) \ -{ \ - type *__data = data; \ - \ - while (count--) \ - *__data++ = __mem_in##bwl(port); \ -} - -#define BUILDSTRING(bwl, type) \ - __BUILD_MEMORY_STRING(bwl, type) \ - __BUILD_IOPORT_STRING(bwl, type) - -BUILDSTRING(b, u8) -BUILDSTRING(w, u16) -BUILDSTRING(l, u32) - -/* - * io{read,write}{8,16,32} macros in both le (for PCI style consumers) and native be - */ -#ifndef ioread8 - -#define ioread8(p) ((unsigned int)readb(p)) - -#define ioread16(p) ((unsigned int)readw(p)) -#define ioread16be(p) ((unsigned int)__raw_readw(p)) - -#define ioread32(p) ((unsigned int)readl(p)) -#define ioread32be(p) ((unsigned int)__raw_readl(p)) - -#define iowrite8(v,p) writeb(v, p) - -#define iowrite16(v,p) writew(v, p) -#define iowrite16be(v,p) __raw_writew(v, p) - -#define iowrite32(v,p) writel(v, p) -#define iowrite32be(v,p) __raw_writel(v, p) - -#define ioread8_rep(p,d,c) readsb(p,d,c) -#define ioread16_rep(p,d,c) readsw(p,d,c) -#define ioread32_rep(p,d,c) readsl(p,d,c) - -#define iowrite8_rep(p,s,c) writesb(p,s,c) -#define iowrite16_rep(p,s,c) writesw(p,s,c) -#define iowrite32_rep(p,s,c) writesl(p,s,c) - -#endif - -static inline void memcpy_fromio(void * to, const volatile void __iomem *from, - unsigned long count) -{ - memcpy(to, (const void __force *)from, count); -} - -static inline void memcpy_toio(volatile void __iomem *to, const void * from, - unsigned long count) -{ - memcpy((void __force *)to, from, count); -} - -static inline void memset_io(volatile void __iomem *addr, unsigned char val, - unsigned long count) -{ - memset((void __force *)addr, val, count); -} - -#define mmiowb() - -#define IO_SPACE_LIMIT 0xffffffff - -extern void __iomem *__ioremap(unsigned long offset, size_t size, - unsigned long flags); -extern void __iounmap(void __iomem *addr); - -/* - * ioremap - map bus memory into CPU space - * @offset bus address of the memory - * @size size of the resource to map - * - * ioremap performs a platform specific sequence of operations to make - * bus memory CPU accessible via the readb/.../writel functions and - * the other mmio helpers. The returned address is not guaranteed to - * be usable directly as a virtual address. - */ -#define ioremap(offset, size) \ - __ioremap((offset), (size), 0) - -#define ioremap_nocache(offset, size) \ - __ioremap((offset), (size), 0) - -#define iounmap(addr) \ - __iounmap(addr) - -#define ioremap_wc ioremap_nocache -#define ioremap_wt ioremap_nocache -#define ioremap_uc ioremap_nocache - -#define cached(addr) P1SEGADDR(addr) -#define uncached(addr) P2SEGADDR(addr) - -#define virt_to_bus virt_to_phys -#define bus_to_virt phys_to_virt -#define page_to_bus page_to_phys -#define bus_to_page phys_to_page - -/* - * Create a virtual mapping cookie for an IO port range. There exists - * no such thing as port-based I/O on AVR32, so a regular ioremap() - * should do what we need. - */ -#define ioport_map(port, nr) ioremap(port, nr) -#define ioport_unmap(port) iounmap(port) - -/* - * Convert a physical pointer to a virtual kernel pointer for /dev/mem - * access - */ -#define xlate_dev_mem_ptr(p) __va(p) - -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - -#endif /* __ASM_AVR32_IO_H */ |