#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