h8300: Assembly headers

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

1 files changed, 57 insertions, 0 deletions

diff --git a/arch/h8300/include/asm/io.h b/arch/h8300/include/asm/io.h
new file mode 100644
index 000000000000..1d09b2f2e0fe
--- /dev/null
+++ b/arch/h8300/include/asm/io.h
@@ -0,0 +1,57 @@
+#ifndef _H8300_IO_H
+#define _H8300_IO_H
+
+#ifdef __KERNEL__
+
+#include <asm-generic/io.h>
+
+/* H8/300 internal I/O functions */
+static inline unsigned char ctrl_inb(unsigned long addr)
+{
+	return *(volatile unsigned char *)addr;
+}
+
+static inline unsigned short ctrl_inw(unsigned long addr)
+{
+	return *(volatile unsigned short *)addr;
+}
+
+static inline unsigned long ctrl_inl(unsigned long addr)
+{
+	return *(volatile unsigned long *)addr;
+}
+
+static inline void ctrl_outb(unsigned char b, unsigned long addr)
+{
+	*(volatile unsigned char *)addr = b;
+}
+
+static inline void ctrl_outw(unsigned short b, unsigned long addr)
+{
+	*(volatile unsigned short *)addr = b;
+}
+
+static inline void ctrl_outl(unsigned long b, unsigned long addr)
+{
+	*(volatile unsigned long *)addr = b;
+}
+
+static inline void ctrl_bclr(int b, unsigned long addr)
+{
+	if (__builtin_constant_p(b))
+		__asm__("bclr %1,%0" : : "WU"(addr), "i"(b));
+	else
+		__asm__("bclr %w1,%0" : : "WU"(addr), "r"(b));
+}
+
+static inline void ctrl_bset(int b, unsigned long addr)
+{
+	if (__builtin_constant_p(b))
+		__asm__("bset %1,%0" : : "WU"(addr), "i"(b));
+	else
+		__asm__("bset %w1,%0" : : "WU"(addr), "r"(b));
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* _H8300_IO_H */