1 files changed, 71 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/io.h b/arch/blackfin/include/asm/io.h
new file mode 100644
index 00000000..dccae268
--- /dev/null
+++ b/arch/blackfin/include/asm/io.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2004-2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _BFIN_IO_H
+#define _BFIN_IO_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+#define DECLARE_BFIN_RAW_READX(size, type, asm, asm_sign) \
+static inline type __raw_read##size(const volatile void __iomem *addr) \
+{ \
+	unsigned int val; \
+	int tmp; \
+	__asm__ __volatile__ ( \
+		"cli %1;" \
+		"NOP; NOP; SSYNC;" \
+		"%0 = "#asm" [%2] "#asm_sign";" \
+		"sti %1;" \
+		: "=d"(val), "=d"(tmp) \
+		: "a"(addr) \
+	); \
+	return (type) val; \
+}
+DECLARE_BFIN_RAW_READX(b, u8, b, (z))
+#define __raw_readb __raw_readb
+DECLARE_BFIN_RAW_READX(w, u16, w, (z))
+#define __raw_readw __raw_readw
+DECLARE_BFIN_RAW_READX(l, u32, , )
+#define __raw_readl __raw_readl
+
+extern void outsb(unsigned long port, const void *addr, unsigned long count);
+extern void outsw(unsigned long port, const void *addr, unsigned long count);
+extern void outsw_8(unsigned long port, const void *addr, unsigned long count);
+extern void outsl(unsigned long port, const void *addr, unsigned long count);
+#define outsb outsb
+#define outsw outsw
+#define outsl outsl
+
+extern void insb(unsigned long port, void *addr, unsigned long count);
+extern void insw(unsigned long port, void *addr, unsigned long count);
+extern void insw_8(unsigned long port, void *addr, unsigned long count);
+extern void insl(unsigned long port, void *addr, unsigned long count);
+extern void insl_16(unsigned long port, void *addr, unsigned long count);
+#define insb insb
+#define insw insw
+#define insl insl
+
+extern void dma_outsb(unsigned long port, const void *addr, unsigned short count);
+extern void dma_outsw(unsigned long port, const void *addr, unsigned short count);
+extern void dma_outsl(unsigned long port, const void *addr, unsigned short count);
+
+extern void dma_insb(unsigned long port, void *addr, unsigned short count);
+extern void dma_insw(unsigned long port, void *addr, unsigned short count);
+extern void dma_insl(unsigned long port, void *addr, unsigned short count);
+
+/**
+ * I/O write barrier
+ *
+ * Ensure ordering of I/O space writes. This will make sure that writes
+ * following the barrier will arrive after all previous writes.
+ */
+#define mmiowb() do { SSYNC(); wmb(); } while (0)
+
+#include <asm-generic/io.h>
+
+#endif