1. 根目录:
2. arch
3. m68k
4. include
5. asm
6. nubus.h

#ifndef _ASM_M68K_NUBUS_H
#define _ASM_M68K_NUBUS_H

#include <asm/raw_io.h>

#define nubus_readb raw_inb
#define nubus_readw raw_inw
#define nubus_readl raw_inl

#define nubus_writeb raw_outb
#define nubus_writew raw_outw
#define nubus_writel raw_outl

#define nubus_memset_io(a,b,c)		memset((void *)(a),(b),(c))
#define nubus_memcpy_fromio(a,b,c)	memcpy((a),(void *)(b),(c))
#define nubus_memcpy_toio(a,b,c)	memcpy((void *)(a),(b),(c))

static inline void *nubus_remap_nocache_ser(unsigned long physaddr,
					    unsigned long size)
{
	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
}

static inline void *nubus_remap_nocache_nonser(unsigned long physaddr,
					       unsigned long size)
{
	return __ioremap(physaddr, size, IOMAP_NOCACHE_NONSER);
}

static inline void *nbus_remap_writethrough(unsigned long physaddr,
					    unsigned long size)
{
	return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
}

static inline void *nubus_remap_fullcache(unsigned long physaddr,
					  unsigned long size)
{
	return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}

#define nubus_unmap iounmap
#define nubus_iounmap iounmap
#define nubus_ioremap nubus_remap_nocache_ser

#endif /* _ASM_NUBUS_H */