mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 01:31:44 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
101 lines
2.5 KiB
C
101 lines
2.5 KiB
C
#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
|