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/*

 * linux/include/asm-arm/arch-tbox/io.h

 *

 * Copyright (C) 1996-1999 Russell King

 * Copyright (C) 1998, 1999 Philip Blundell

 *

 */

#ifndef __ASM_ARM_ARCH_IO_H

#define __ASM_ARM_ARCH_IO_H

#define IO_SPACE_LIMIT 0xffffffff

#define __io(_x)                ((_x) << 2)

/*

 * Generic virtual read/write

 */

static inline unsigned int __arch_getw(unsigned long a)

{

        unsigned int value;

        __asm__ __volatile__("ldr%?h    %0, [%1, #0]    @ getw"

                : "=&r" (value)

                : "r" (a));

        return value;

}

static inline void __arch_putw(unsigned int value, unsigned long a)

{

        __asm__ __volatile__("str%?h    %0, [%1, #0]    @ putw"

                : : "r" (value), "r" (a));

}

/* Idem, for devices on the upper byte lanes */

#define inb_u(p)                __arch_getb(__io_pc(p) + 2)

#define inw_u(p)                __arch_getw(__io_pc(p) + 2)

#define outb_u(v,p)             __arch_putb(v,__io_pc(p) + 2)

#define outw_u(v,p)             __arch_putw(v,__io_pc(p) + 2)

#endif