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-rw-r--r--include/asm-um/io.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/asm-um/io.h b/include/asm-um/io.h
index 90674056dcef..1934d9340e2c 100644
--- a/include/asm-um/io.h
+++ b/include/asm-um/io.h
@@ -33,4 +33,20 @@ static inline void * phys_to_virt(unsigned long address)
33 */ 33 */
34#define xlate_dev_kmem_ptr(p) p 34#define xlate_dev_kmem_ptr(p) p
35 35
36static inline void writeb(unsigned char b, volatile void __iomem *addr)
37{
38 *(volatile unsigned char __force *) addr = b;
39}
40static inline void writew(unsigned short b, volatile void __iomem *addr)
41{
42 *(volatile unsigned short __force *) addr = b;
43}
44static inline void writel(unsigned int b, volatile void __iomem *addr)
45{
46 *(volatile unsigned int __force *) addr = b;
47}
48#define __raw_writeb writeb
49#define __raw_writew writew
50#define __raw_writel writel
51
36#endif 52#endif