ARM: dts: rmobile: Synchronize Gen3 DTs with Linux 5.6.2

Synchronize R-Car Gen3 device trees with Linux 5.6.2,
commit 9fbe5c87eaa9b72db08425c52c373eb5f6537a0a .

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/arm/dts/r8a77960-ulcb.dts b/arch/arm/dts/r8a77960-ulcb.dts
new file mode 100644
index 0000000..d041042
--- /dev/null
+++ b/arch/arm/dts/r8a77960-ulcb.dts
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the M3ULCB (R-Car Starter Kit Pro) board
+ *
+ * Copyright (C) 2016 Renesas Electronics Corp.
+ * Copyright (C) 2016 Cogent Embedded, Inc.
+ */
+
+/dts-v1/;
+#include "r8a77960.dtsi"
+#include "ulcb.dtsi"
+
+/ {
+	model = "Renesas M3ULCB board based on r8a77960";
+	compatible = "renesas,m3ulcb", "renesas,r8a7796";
+
+	memory@48000000 {
+		device_type = "memory";
+		/* first 128MB is reserved for secure area. */
+		reg = <0x0 0x48000000 0x0 0x38000000>;
+	};
+
+	memory@600000000 {
+		device_type = "memory";
+		reg = <0x6 0x00000000 0x0 0x40000000>;
+	};
+};
+
+&du {
+	clocks = <&cpg CPG_MOD 724>,
+		 <&cpg CPG_MOD 723>,
+		 <&cpg CPG_MOD 722>,
+		 <&versaclock5 1>,
+		 <&versaclock5 3>,
+		 <&versaclock5 2>;
+	clock-names = "du.0", "du.1", "du.2",
+		      "dclkin.0", "dclkin.1", "dclkin.2";
+};