asm-generic/io.h: add reads[bwl]/writes[bwl] helpers

A bunch of arches define reads[bwl]/writes[bwl] helpers for accessing
memory mapped registers.  Since the Blackfin ones aren't specific to
Blackfin code, move them to the common asm-generic/io.h for people.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 3577ca11a0be..4644c9a7f724 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -211,6 +211,36 @@ static inline void outsl(unsigned long addr, const void *buffer, int count)
 }
 #endif
 
+static inline void readsl(const void __iomem *addr, void *buf, int len)
+{
+	insl((unsigned long)addr, buf, len);
+}
+
+static inline void readsw(const void __iomem *addr, void *buf, int len)
+{
+	insw((unsigned long)addr, buf, len);
+}
+
+static inline void readsb(const void __iomem *addr, void *buf, int len)
+{
+	insb((unsigned long)addr, buf, len);
+}
+
+static inline void writesl(const void __iomem *addr, const void *buf, int len)
+{
+	outsl((unsigned long)addr, buf, len);
+}
+
+static inline void writesw(const void __iomem *addr, const void *buf, int len)
+{
+	outsw((unsigned long)addr, buf, len);
+}
+
+static inline void writesb(const void __iomem *addr, const void *buf, int len)
+{
+	outsb((unsigned long)addr, buf, len);
+}
+
 #ifndef CONFIG_GENERIC_IOMAP
 #define ioread8(addr)		readb(addr)
 #define ioread16(addr)		readw(addr)