i2c: Blackfin Two Wire Interface driver

The i2c linux driver for blackfin architecture which supports blackfin
on-chip TWI controller i2c operation.

Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Reviewed-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
index 9c21dc7..0e8da68 100644
--- a/include/linux/i2c-id.h
+++ b/include/linux/i2c-id.h
@@ -258,8 +258,9 @@
 /* --- MCP107 adapter */
 #define I2C_HW_MPC107		0x0d0000
 
-/* --- Marvell mv64xxx i2c adapter */
+/* --- Embedded adapters */
 #define I2C_HW_MV64XXX		0x190000
+#define I2C_HW_BLACKFIN		0x190001 /* ADI Blackfin I2C TWI driver */
 
 /* --- Miscellaneous adapters */
 #define I2C_HW_SAA7146		0x060000 /* SAA7146 video decoder bus */