add ti: am57xx-evm.dts

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

src/arm/am57xx-evm.dts

+/*
+ * Copyright (C) 2015-2016 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "am57xx-beagle-x15.dts"
+#include "am57xx-evm-common.dtsi"
+#include "am57xx-commercial-grade.dtsi"
+#include "am57xx-cmem.dtsi"
+
+/ {
+	model = "TI AM5728 EVM";
+};
+
+&mmc3 {
+	pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50";
+	pinctrl-0 = <&mmc3_pins_default>;
+	pinctrl-1 = <&mmc3_pins_hs>;
+	pinctrl-2 = <&mmc3_pins_sdr12>;
+	pinctrl-3 = <&mmc3_pins_sdr25>;
+	pinctrl-4 = <&mmc3_pins_sdr50 &mmc3_iodelay_manual1_rev11_conf>;
+};