text: /*
   *  linux/include/asm-arm/arch-ebsa110/io.h
   *
   *  Copyright (C) 1997,1998 Russell King
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   * Modifications:
   *  06-Dec-1997	RMK	Created.
   */
  #ifndef __ASM_ARM_ARCH_IO_H
  #define __ASM_ARM_ARCH_IO_H
  
  #define IO_SPACE_LIMIT 0xffff
  
  u8 __inb8(unsigned int port);
  void __outb8(u8  val, unsigned int port);
  
  u8 __inb16(unsigned int port);
  void __outb16(u8  val, unsigned int port);
  
  u16 __inw(unsigned int port);
  void __outw(u16 val, unsigned int port);
  
  u32 __inl(unsigned int port);
  void __outl(u32 val, unsigned int port);
  
  u8  __readb(const volatile void __iomem *addr);
  u16 __readw(const volatile void __iomem *addr);
  u32 __readl(const volatile void __iomem *addr);
  
  void __writeb(u8  val, void __iomem *addr);
  void __writew(u16 val, void __iomem *addr);
  void __writel(u32 val, void __iomem *addr);
  
  /*
   * Argh, someone forgot the IOCS16 line.  We therefore have to handle
   * the byte stearing by selecting the correct byte IO functions here.
   */
  #ifdef ISA_SIXTEEN_BIT_PERIPHERAL
  #define inb(p) 			__inb16(p)
  #define outb(v,p)		__outb16(v,p)
  #else
  #define inb(p)			__inb8(p)
  #define outb(v,p)		__outb8(v,p)
  #endif
  
  #define inw(p)			__inw(p)
  #define outw(v,p)		__outw(v,p)
  
  #define inl(p)			__inl(p)
  #define outl(v,p)		__outl(v,p)
  
  #define readb(b)		__readb(b)
  #define readw(b)		__readw(b)
  #define readl(b)		__readl(b)
  #define readb_relaxed(addr)	readb(addr)
  #define readw_relaxed(addr)	readw(addr)
  #define readl_relaxed(addr)	readl(addr)
  
  #define writeb(v,b)		__writeb(v,b)
  #define writew(v,b)		__writew(v,b)
  #define writel(v,b)		__writel(v,b)
  
  static inline void __iomem *__arch_ioremap(unsigned long cookie, size_t size,
  					   unsigned int flags)
  {
  	return (void __iomem *)cookie;
  }
  
  #define __arch_ioremap		__arch_ioremap
  #define __arch_iounmap(cookie)	do { } while (0)
  
  extern void insb(unsigned int port, void *buf, int sz);
  extern void insw(unsigned int port, void *buf, int sz);
  extern void insl(unsigned int port, void *buf, int sz);
  
  extern void outsb(unsigned int port, const void *buf, int sz);
  extern void outsw(unsigned int port, const void *buf, int sz);
  extern void outsl(unsigned int port, const void *buf, int sz);
  
  /* can't support writesb atm */
  extern void writesw(void __iomem *addr, const void *data, int wordlen);
  extern void writesl(void __iomem *addr, const void *data, int longlen);
  
  /* can't support readsb atm */
  extern void readsw(const void __iomem *addr, void *data, int wordlen);
  extern void readsl(const void __iomem *addr, void *data, int longlen);
  
  #endif
  