Add initial support for the Renesas Salvator-X 2nd version development
board equipped with an R-Car M3-W+ SiP with 8 (2 x 4) GiB of RAM.

The memory map is as follows:
  - Bank0: 4GiB RAM : 0x000048000000 -> 0x000bfffffff
                      0x000480000000 -> 0x004ffffffff
  - Bank1: 4GiB RAM : 0x000600000000 -> 0x006ffffffff

Based on a patch in the BSP by Takeshi Kihara
<takeshi.kihara...@renesas.com>.

Signed-off-by: Geert Uytterhoeven <geert+rene...@glider.be>
---
 arch/arm64/boot/dts/renesas/Makefile          |  1 +
 .../boot/dts/renesas/r8a77961-salvator-xs.dts | 31 +++++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 arch/arm64/boot/dts/renesas/r8a77961-salvator-xs.dts

diff --git a/arch/arm64/boot/dts/renesas/Makefile 
b/arch/arm64/boot/dts/renesas/Makefile
index 3a6a0fb5b482a2dc..e0a829c139ee133f 100644
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -11,6 +11,7 @@ dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-es1-h3ulcb-kf.dtb
 dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-salvator-x.dtb r8a7796-m3ulcb.dtb
 dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-m3ulcb-kf.dtb
 dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-salvator-xs.dtb
+dtb-$(CONFIG_ARCH_R8A77961) += r8a77961-salvator-xs.dtb
 dtb-$(CONFIG_ARCH_R8A77965) += r8a77965-salvator-x.dtb r8a77965-salvator-xs.dtb
 dtb-$(CONFIG_ARCH_R8A77965) += r8a77965-m3nulcb.dtb
 dtb-$(CONFIG_ARCH_R8A77965) += r8a77965-m3nulcb-kf.dtb
diff --git a/arch/arm64/boot/dts/renesas/r8a77961-salvator-xs.dts 
b/arch/arm64/boot/dts/renesas/r8a77961-salvator-xs.dts
new file mode 100644
index 0000000000000000..4abd78ac1cd597d9
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a77961-salvator-xs.dts
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the Salvator-X 2nd version board with R-Car M3-W+
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ */
+
+/dts-v1/;
+#include "r8a77961.dtsi"
+#include "salvator-xs.dtsi"
+
+/ {
+       model = "Renesas Salvator-X 2nd version board based on r8a77961";
+       compatible = "renesas,salvator-xs", "renesas,r8a77961";
+
+       memory@48000000 {
+               device_type = "memory";
+               /* first 128MB is reserved for secure area. */
+               reg = <0x0 0x48000000 0x0 0x78000000>;
+       };
+
+       memory@400000000 {
+               device_type = "memory";
+               reg = <0x4 0x80000000 0x0 0x80000000>;
+       };
+
+       memory@600000000 {
+               device_type = "memory";
+               reg = <0x6 0x00000000 0x1 0x00000000>;
+       };
+};
-- 
2.17.1

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