ARM: dts: imx28: add alternative muxing for mmc2_sck_cfg

Signed-off-by: Michael Heimpold <michael.heimpold@i2se.com>
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx28.dtsi

@@ -622,6 +622,15 @@ MX28_PAD_SSP0_DATA7__SSP2_SCK
 					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
+				mmc2_sck_cfg_b: mmc2-sck-cfg@1 {
+					reg = <1>;
+					fsl,pinmux-ids = <
+						MX28_PAD_SSP2_SCK__SSP2_SCK
+					>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
+				};
+
 				i2c0_pins_a: i2c0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <