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#ifndef _ASM_CRIS_IO_H
#define _ASM_CRIS_IO_H
#include <asm/page.h> /* for __va, __pa */
#include <asm/arch/io.h>
/*
* Change virtual addresses to physical addresses and vv.
*/
extern inline unsigned long virt_to_phys(volatile void * address)
{
return __pa(address);
}
extern inline void * phys_to_virt(unsigned long address)
{
return __va(address);
}
extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
extern inline void * ioremap (unsigned long offset, unsigned long size)
{
return __ioremap(offset, size, 0);
}
extern void iounmap(void *addr);
/*
* IO bus memory addresses are also 1:1 with the physical address
*/
#define virt_to_bus virt_to_phys
#define bus_to_virt phys_to_virt
/*
* readX/writeX() are used to access memory mapped devices. On some
* architectures the memory mapped IO stuff needs to be accessed
* differently. On the CRIS architecture, we just read/write the
* memory location directly.
*/
#define readb(addr) (*(volatile unsigned char *) (addr))
#define readw(addr) (*(volatile unsigned short *) (addr))
#define readl(addr) (*(volatile unsigned int *) (addr))
#define readb_relaxed(addr) readb(addr)
#define readw_relaxed(addr) readw(addr)
#define readl_relaxed(addr) readl(addr)
#define __raw_readb readb
#define __raw_readw readw
#define __raw_readl readl
#define writeb(b,addr) ((*(volatile unsigned char *) (addr)) = (b))
#define writew(b,addr) ((*(volatile unsigned short *) (addr)) = (b))
#define writel(b,addr) ((*(volatile unsigned int *) (addr)) = (b))
#define __raw_writeb writeb
#define __raw_writew writew
#define __raw_writel writel
#define mmiowb()
#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))
/*
* Again, CRIS does not require mem IO specific function.
*/
#define eth_io_copy_and_sum(a,b,c,d) eth_copy_and_sum((a),(void *)(b),(c),(d))
/* The following is junk needed for the arch-independent code but which
* we never use in the CRIS port
*/
#define IO_SPACE_LIMIT 0xffff
#define inb(x) (0)
#define inw(x) (0)
#define inl(x) (0)
#define outb(x,y)
#define outw(x,y)
#define outl(x,y)
#define insb(x,y,z)
#define insw(x,y,z)
#define insl(x,y,z)
#define outsb(x,y,z)
#define outsw(x,y,z)
#define outsl(x,y,z)
/*
* 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
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