linux-kernel - [PATCH 2/6] arm64: dts: renesas: r9a09g087: Add CANFD node

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Message-ID: <20251224175204.3400062-3-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Wed, 24 Dec 2025 17:52:00 +0000
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-renesas-soc@...r.kernel.org
Cc: 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>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH 2/6] arm64: dts: renesas: r9a09g087: Add CANFD node

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Add support for the CANFD controller on the Renesas RZ/N2H Soc.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a09g087.dtsi | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g087.dtsi b/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
index 9809a6a9c1c0..d76999377077 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
@@ -237,6 +237,37 @@ rspi3: spi@...07000 {
 			status = "disabled";
 		};
 
+		canfd: can@...40000 {
+			compatible = "renesas,r9a09g087-canfd", "renesas,r9a09g077-canfd";
+			reg = <0 0x80040000 0 0x20000>;
+			interrupts = <GIC_SPI 633 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 632 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 627 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 628 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 626 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 630 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 631 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 629 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "g_err", "g_recc",
+					  "ch0_err", "ch0_rec", "ch0_trx",
+					  "ch1_err", "ch1_rec", "ch1_trx";
+			clocks = <&cpg CPG_MOD 310>,
+				 <&cpg CPG_CORE R9A09G087_CLK_PCLKH>,
+				 <&cpg CPG_CORE R9A09G087_PCLKCAN>;
+			clock-names = "fck", "ram_clk", "can_clk";
+			assigned-clocks = <&cpg CPG_CORE R9A09G087_PCLKCAN>;
+			assigned-clock-rates = <80000000>;
+			power-domains = <&cpg>;
+			status = "disabled";
+
+			channel0 {
+				status = "disabled";
+			};
+			channel1 {
+				status = "disabled";
+			};
+		};
+
 		wdt0: watchdog@...82000 {
 			compatible = "renesas,r9a09g087-wdt", "renesas,r9a09g077-wdt";
 			reg = <0 0x80082000 0 0x400>,
-- 
2.52.0