arm64: dts: renesas: initial Eagle board device tree

Add the initial device  tree for  the R8A77970 SoC based Eagle board.
The board has 1 debug serial port (SCIF0); include support for it,
so that the serial console can work.

Based on the original (and large) patch by Vladimir Barinov
<vladimir.barinov@cogentembedded.com>.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index 381928b..96a3b29 100644 (file)
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -2,6 +2,7 @@ dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-x.dtb r8a7795-h3ulcb.dtb
 dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-xs.dtb
 dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-es1-salvator-x.dtb r8a7795-es1-h3ulcb.dtb
 dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-salvator-x.dtb r8a7796-m3ulcb.dtb
+dtb-$(CONFIG_ARCH_R8A77970) += r8a77970-eagle.dtb
 dtb-$(CONFIG_ARCH_R8A77995) += r8a77995-draak.dtb
 
 always         := $(dtb-y)

diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
new file mode 100644 (file)
index 0000000..a4d1d4f
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
@@ -0,0 +1,45 @@
+/*
+ * Device Tree Source for the Eagle board
+ *
+ * Copyright (C) 2016-2017 Renesas Electronics Corp.
+ * Copyright (C) 2017 Cogent Embedded, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "r8a77970.dtsi"
+
+/ {
+       model = "Renesas Eagle board based on r8a77970";
+       compatible = "renesas,eagle", "renesas,r8a77970";
+
+       aliases {
+               serial0 = &scif0;
+       };
+
+       chosen {
+               bootargs = "ignore_loglevel";
+               stdout-path = "serial0:115200n8";
+       };
+
+       memory@48000000 {
+               device_type = "memory";
+               /* first 128MB is reserved for secure area. */
+               reg = <0x0 0x48000000 0x0 0x38000000>;
+       };
+};
+
+&extal_clk {
+       clock-frequency = <16666666>;
+};
+
+&extalr_clk {
+       clock-frequency = <32768>;
+};
+
+&scif0 {
+       status = "okay";
+};