ARM: rmobile: Add R8A77965 Salvator-XS board support

Add R8A77965 M3N Salvator-XS development kit support. This kit is
similar to the other Salvator-X(S) ones, except is has M3N SoC on
it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 2b17a5f..20a4c37 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -410,6 +410,7 @@
 	r8a7795-salvator-x.dtb \
 	r8a7796-m3ulcb.dtb \
 	r8a7796-salvator-x.dtb \
+	r8a77965-salvator-x.dtb \
 	r8a77970-eagle.dtb \
 	r8a77995-draak.dtb
 
diff --git a/arch/arm/dts/r8a77965-salvator-x-u-boot.dts b/arch/arm/dts/r8a77965-salvator-x-u-boot.dts
new file mode 100644
index 0000000..d18b5bf
--- /dev/null
+++ b/arch/arm/dts/r8a77965-salvator-x-u-boot.dts
@@ -0,0 +1,10 @@
+/*
+ * Device Tree Source extras for U-Boot for the M3N Salvator-XS board
+ *
+ * Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#include "r8a77965-salvator-x.dts"
+#include "r8a77965-u-boot.dtsi"
diff --git a/arch/arm/dts/r8a77965-salvator-x.dts b/arch/arm/dts/r8a77965-salvator-x.dts
new file mode 100644
index 0000000..75d890d
--- /dev/null
+++ b/arch/arm/dts/r8a77965-salvator-x.dts
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the Salvator-X board with R-Car M3-N
+ *
+ * Copyright (C) 2018 Jacopo Mondi <jacopo+renesas@jmondi.org>
+ */
+
+/dts-v1/;
+#include "r8a77965.dtsi"
+#include "salvator-x.dtsi"
+
+/ {
+	model = "Renesas Salvator-X board based on r8a77965";
+	compatible = "renesas,salvator-x", "renesas,r8a77965";
+
+	memory@48000000 {
+		device_type = "memory";
+		/* first 128MB is reserved for secure area. */
+		reg = <0x0 0x48000000 0x0 0x78000000>;
+	};
+};