summaryrefslogtreecommitdiff
path: root/arch/m68knommu/include/asm/io.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68knommu/include/asm/io.h')
-rw-r--r--arch/m68knommu/include/asm/io.h194
1 files changed, 0 insertions, 194 deletions
diff --git a/arch/m68knommu/include/asm/io.h b/arch/m68knommu/include/asm/io.h
deleted file mode 100644
index 6adef1ee2082..000000000000
--- a/arch/m68knommu/include/asm/io.h
+++ /dev/null
@@ -1,194 +0,0 @@
-#ifndef _M68KNOMMU_IO_H
-#define _M68KNOMMU_IO_H
-
-#ifdef __KERNEL__
-
-
-/*
- * These are for ISA/PCI shared memory _only_ and should never be used
- * on any other type of memory, including Zorro memory. They are meant to
- * access the bus in the bus byte order which is little-endian!.
- *
- * readX/writeX() are used to access memory mapped devices. On some
- * architectures the memory mapped IO stuff needs to be accessed
- * differently. On the m68k architecture, we just read/write the
- * memory location directly.
- */
-/* ++roman: The assignments to temp. vars avoid that gcc sometimes generates
- * two accesses to memory, which may be undesireable for some devices.
- */
-
-/*
- * swap functions are sometimes needed to interface little-endian hardware
- */
-static inline unsigned short _swapw(volatile unsigned short v)
-{
- return ((v << 8) | (v >> 8));
-}
-
-static inline unsigned int _swapl(volatile unsigned long v)
-{
- return ((v << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | (v >> 24));
-}
-
-#define readb(addr) \
- ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
-#define readw(addr) \
- ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
-#define readl(addr) \
- ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; })
-
-#define readb_relaxed(addr) readb(addr)
-#define readw_relaxed(addr) readw(addr)
-#define readl_relaxed(addr) readl(addr)
-
-#define writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b))
-#define writew(b,addr) (void)((*(volatile unsigned short *) (addr)) = (b))
-#define writel(b,addr) (void)((*(volatile unsigned int *) (addr)) = (b))
-
-#define __raw_readb readb
-#define __raw_readw readw
-#define __raw_readl readl
-#define __raw_writeb writeb
-#define __raw_writew writew
-#define __raw_writel writel
-
-static inline void io_outsb(unsigned int addr, void *buf, int len)
-{
- volatile unsigned char *ap = (volatile unsigned char *) addr;
- unsigned char *bp = (unsigned char *) buf;
- while (len--)
- *ap = *bp++;
-}
-
-static inline void io_outsw(unsigned int addr, void *buf, int len)
-{
- volatile unsigned short *ap = (volatile unsigned short *) addr;
- unsigned short *bp = (unsigned short *) buf;
- while (len--)
- *ap = _swapw(*bp++);
-}
-
-static inline void io_outsl(unsigned int addr, void *buf, int len)
-{
- volatile unsigned int *ap = (volatile unsigned int *) addr;
- unsigned int *bp = (unsigned int *) buf;
- while (len--)
- *ap = _swapl(*bp++);
-}
-
-static inline void io_insb(unsigned int addr, void *buf, int len)
-{
- volatile unsigned char *ap = (volatile unsigned char *) addr;
- unsigned char *bp = (unsigned char *) buf;
- while (len--)
- *bp++ = *ap;
-}
-
-static inline void io_insw(unsigned int addr, void *buf, int len)
-{
- volatile unsigned short *ap = (volatile unsigned short *) addr;
- unsigned short *bp = (unsigned short *) buf;
- while (len--)
- *bp++ = _swapw(*ap);
-}
-
-static inline void io_insl(unsigned int addr, void *buf, int len)
-{
- volatile unsigned int *ap = (volatile unsigned int *) addr;
- unsigned int *bp = (unsigned int *) buf;
- while (len--)
- *bp++ = _swapl(*ap);
-}
-
-#define mmiowb()
-
-/*
- * make the short names macros so specific devices
- * can override them as required
- */
-
-#define memset_io(a,b,c) memset((void *)(a),(b),(c))
-#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
-#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
-
-#define inb(addr) readb(addr)
-#define inw(addr) readw(addr)
-#define inl(addr) readl(addr)
-#define outb(x,addr) ((void) writeb(x,addr))
-#define outw(x,addr) ((void) writew(x,addr))
-#define outl(x,addr) ((void) writel(x,addr))
-
-#define inb_p(addr) inb(addr)
-#define inw_p(addr) inw(addr)
-#define inl_p(addr) inl(addr)
-#define outb_p(x,addr) outb(x,addr)
-#define outw_p(x,addr) outw(x,addr)
-#define outl_p(x,addr) outl(x,addr)
-
-#define outsb(a,b,l) io_outsb(a,b,l)
-#define outsw(a,b,l) io_outsw(a,b,l)
-#define outsl(a,b,l) io_outsl(a,b,l)
-
-#define insb(a,b,l) io_insb(a,b,l)
-#define insw(a,b,l) io_insw(a,b,l)
-#define insl(a,b,l) io_insl(a,b,l)
-
-#define IO_SPACE_LIMIT 0xffff
-
-
-/* Values for nocacheflag and cmode */
-#define IOMAP_FULL_CACHING 0
-#define IOMAP_NOCACHE_SER 1
-#define IOMAP_NOCACHE_NONSER 2
-#define IOMAP_WRITETHROUGH 3
-
-extern void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag);
-extern void __iounmap(void *addr, unsigned long size);
-
-static inline void *ioremap(unsigned long physaddr, unsigned long size)
-{
- return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
-}
-static inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
-{
- return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
-}
-static inline void *ioremap_writethrough(unsigned long physaddr, unsigned long size)
-{
- return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
-}
-static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size)
-{
- return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
-}
-
-extern void iounmap(void *addr);
-
-/* Pages to physical address... */
-#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT)
-#define page_to_bus(page) ((page - mem_map) << PAGE_SHIFT)
-
-/*
- * Macros used for converting between virtual and physical mappings.
- */
-#define phys_to_virt(vaddr) ((void *) (vaddr))
-#define virt_to_phys(vaddr) ((unsigned long) (vaddr))
-
-#define virt_to_bus virt_to_phys
-#define bus_to_virt phys_to_virt
-
-/*
- * 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 /* __KERNEL__ */
-
-#endif /* _M68KNOMMU_IO_H */