linux-kernel - [PATCH 6/8] arm64: dts: renesas: Refactor RZ/T2H EVK device tree

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Message-ID: <20250609203656.333138-7-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Mon,  9 Jun 2025 21:36:54 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Magnus Damm <magnus.damm@...il.com>
Cc: linux-renesas-soc@...r.kernel.org,
	linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH 6/8] arm64: dts: renesas: Refactor RZ/T2H EVK device tree

From: Paul Barker <paul.barker.ct@...renesas.com>

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-evk-common.dtsi.

Signed-off-by: Paul Barker <paul.barker.ct@...renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
 .../dts/renesas/r9a09g077m44-rzt2h-evk.dts    | 17 +------------
 .../boot/dts/renesas/rzt2h-evk-common.dtsi    | 24 +++++++++++++++++++
 2 files changed, 25 insertions(+), 16 deletions(-)
 create mode 100644 arch/arm64/boot/dts/renesas/rzt2h-evk-common.dtsi

diff --git a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
index bbacdca1959e..b5e590be0f95 100644
--- 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-evk-common.dtsi"
 
 / {
 	model = "Renesas Development EVK 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-evk-common.dtsi b/arch/arm64/boot/dts/renesas/rzt2h-evk-common.dtsi
new file mode 100644
index 000000000000..dc386dbd432b
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/rzt2h-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 Development EVK boards.
+ *
+ * Copyright (C) 2025 Renesas Electronics Corp.
+ */
+
+/ {
+	aliases {
+		serial0 = &sci0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&extal_clk {
+	clock-frequency = <25000000>;
+};
+
+&sci0 {
+	status = "okay";
+};
-- 
2.49.0