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Diffstat (limited to 'include/asm-nios2/io.h')
-rw-r--r--include/asm-nios2/io.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-nios2/io.h b/include/asm-nios2/io.h
index 5bb5322..54cbd57 100644
--- a/include/asm-nios2/io.h
+++ b/include/asm-nios2/io.h
@@ -33,6 +33,14 @@ extern unsigned char inb (unsigned char *port);
extern unsigned short inw (unsigned short *port);
extern unsigned inl (unsigned port);
+#define __raw_writeb(v,a) (*(volatile unsigned char *)(a) = (v))
+#define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v))
+#define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v))
+
+#define __raw_readb(a) (*(volatile unsigned char *)(a))
+#define __raw_readw(a) (*(volatile unsigned short *)(a))
+#define __raw_readl(a) (*(volatile unsigned int *)(a))
+
#define readb(addr)\
({unsigned char val;\
asm volatile( "ldbio %0, 0(%1)" :"=r"(val) : "r" (addr)); val;})