arm64: dts: renesas: Refactor RZ/T2H EVK device tree

The RZ/T2H EVK and RZ/N2H EVK are very similar boards.  As there is so
much overlap between these parts, common device tree entries are moved
to the new file rzt2h-n2h-evk-common.dtsi.

Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250617171957.162145-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
index 752d4c9f2cae58746cb9b7f06167a5a0ab2d7c0f..486584fefeadf9c552667f017ad4d3dea6f30bd1 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
@@ -8,24 +8,9 @@
 /dts-v1/;
 
 #include "r9a09g077m44.dtsi"
+#include "rzt2h-n2h-evk-common.dtsi"
 
 / {
        model = "Renesas RZ/T2H EVK Board based on r9a09g077m44";
        compatible = "renesas,rzt2h-evk", "renesas,r9a09g077m44", "renesas,r9a09g077";
-
-       aliases {
-               serial0 = &sci0;
-       };
-
-       chosen {
-               stdout-path = "serial0:115200n8";
-       };
-};
-
-&extal_clk {
-       clock-frequency = <25000000>;
-};
-
-&sci0 {
-       status = "okay";
 };

diff --git a/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
new file mode 100644 (file)
index 0000000..5f17996
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Common Device Tree Source for the RZ/T2H and RZ/N2H EVK boards.
+ *
+ * Copyright (C) 2025 Renesas Electronics Corp.
+ */
+
+/ {
+       aliases {
+               serial0 = &sci0;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+};
+
+&extal_clk {
+       clock-frequency = <25000000>;
+};
+
+&sci0 {
+       status = "okay";
+};