ARM: imx: Define functions for registering PATA

Define functions for registering PATA on MX27/MX31/MX35/MX53.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-imx/devices-imx27.h b/arch/arm/mach-imx/devices-imx27.h
index 7f97a3c..2f727d7 100644
--- a/arch/arm/mach-imx/devices-imx27.h
+++ b/arch/arm/mach-imx/devices-imx27.h
@@ -76,3 +76,7 @@
 #define imx27_add_spi_imx0(pdata)	imx27_add_cspi(0, pdata)
 #define imx27_add_spi_imx1(pdata)	imx27_add_cspi(1, pdata)
 #define imx27_add_spi_imx2(pdata)	imx27_add_cspi(2, pdata)
+
+extern const struct imx_pata_imx_data imx27_pata_imx_data;
+#define imx27_add_pata_imx() \
+	imx_add_pata_imx(&imx27_pata_imx_data)