USB: musb: add Blackfin version low level register accessing helper functions

add Blackfin version low level register accessing helper functions

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h
index 223f0a514094..15f057722b64 100644
--- a/drivers/usb/musb/musb_io.h
+++ b/drivers/usb/musb/musb_io.h
@@ -56,6 +56,8 @@ static inline void writesb(const void __iomem *addr, const void *buf, int len)
 
 #endif
 
+#ifndef CONFIG_BLACKFIN
+
 /* NOTE:  these offsets are all in bytes */
 
 static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
@@ -114,4 +116,26 @@ static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
 
 #endif  /* CONFIG_USB_TUSB6010 */
 
+#else
+
+static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
+        { return (u8) (bfin_read16(addr + offset)); }
+
+static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
+        { return bfin_read16(addr + offset); }
+
+static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
+        { return (u32) (bfin_read16(addr + offset)); }
+
+static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
+        { bfin_write16(addr + offset, (u16) data); }
+
+static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
+        { bfin_write16(addr + offset, data); }
+
+static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
+        { bfin_write16(addr + offset, (u16) data); }
+
+#endif /* CONFIG_BLACKFIN */
+
 #endif