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/*
* linux/include/asm-arm/arch-sa1100/io.h
*
* Copyright (C) 1997-1999 Russell King
*
* Modifications:
* 06-12-1997 RMK Created.
* 07-04-1999 RMK Major cleanup
*/
#ifndef __ASM_ARM_ARCH_IO_H
#define __ASM_ARM_ARCH_IO_H
#define IO_SPACE_LIMIT 0xffffffff
/*
* We don't actually have real ISA nor PCI buses, but there is so many
* drivers out there that might just work if we fake them...
*/
#define __io_pci(a) (PCIO_BASE + (a))
#define __mem_pci(a) ((unsigned long)(a))
#define __mem_isa(a) ((unsigned long)(a))
#define __ioaddr(p) __io_pci(p)
/*
* Generic virtual read/write
*/
#define __arch_getb(a) (*(volatile unsigned char *)(a))
#define __arch_getl(a) (*(volatile unsigned int *)(a))
extern __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;
}
#define __arch_putb(v,a) (*(volatile unsigned char *)(a) = (v))
#define __arch_putl(v,a) (*(volatile unsigned int *)(a) = (v))
extern __inline__ void __arch_putw(unsigned int value, unsigned long a)
{
__asm__ __volatile__("str%?h %0, [%1, #0] @ putw"
: : "r" (value), "r" (a));
}
#define inb(p) __arch_getb(__io_pci(p))
#define inw(p) __arch_getw(__io_pci(p))
#define inl(p) __arch_getl(__io_pci(p))
#define outb(v,p) __arch_putb(v,__io_pci(p))
#define outw(v,p) __arch_putw(v,__io_pci(p))
#define outl(v,p) __arch_putl(v,__io_pci(p))
#define __arch_ioremap __ioremap
#endif
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