arm: mx50_rdp: add i2c bus support

Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx5/devices-imx50.h b/arch/arm/mach-mx5/devices-imx50.h
index e1093db..c9e4282 100644
--- a/arch/arm/mach-mx5/devices-imx50.h
+++ b/arch/arm/mach-mx5/devices-imx50.h
@@ -29,3 +29,6 @@
 #define imx50_add_fec(pdata)	\
 	imx_add_fec(&imx50_fec_data, pdata)
 
+extern const struct imx_imx_i2c_data imx50_imx_i2c_data[] __initconst;
+#define imx50_add_imx_i2c(id, pdata)	\
+	imx_add_imx_i2c(&imx50_imx_i2c_data[id], pdata)