linux-kernel - [PATCH 3/3] ARM: dts: r8a7742: Add CAN support

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Message-Id: <20200816190732.6905-4-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date:   Sun, 16 Aug 2020 20:07:32 +0100
From:   Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Magnus Damm <magnus.damm@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     linux-can@...r.kernel.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org, linux-gpio@...r.kernel.org,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Prabhakar <prabhakar.csengg@...il.com>
Subject: [PATCH 3/3] ARM: dts: r8a7742: Add CAN support

Add the definitions for can0 and can1 to the r8a7742 SoC dtsi.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@...esas.com>
---
 arch/arm/boot/dts/r8a7742.dtsi | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7742.dtsi b/arch/arm/boot/dts/r8a7742.dtsi
index 009827708bf4..0fc52b27ae64 100644
--- a/arch/arm/boot/dts/r8a7742.dtsi
+++ b/arch/arm/boot/dts/r8a7742.dtsi
@@ -36,6 +36,14 @@
 		clock-frequency = <0>;
 	};
 
+	/* External CAN clock */
+	can_clk: can {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		/* This value must be overridden by the board. */
+		clock-frequency = <0>;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -951,6 +959,32 @@
 			status = "disabled";
 		};
 
+		can0: can@...80000 {
+			compatible = "renesas,can-r8a7742",
+				     "renesas,rcar-gen2-can";
+			reg = <0 0xe6e80000 0 0x1000>;
+			interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 916>,
+				 <&cpg CPG_CORE R8A7742_CLK_RCAN>, <&can_clk>;
+			clock-names = "clkp1", "clkp2", "can_clk";
+			power-domains = <&sysc R8A7742_PD_ALWAYS_ON>;
+			resets = <&cpg 916>;
+			status = "disabled";
+		};
+
+		can1: can@...88000 {
+			compatible = "renesas,can-r8a7742",
+				     "renesas,rcar-gen2-can";
+			reg = <0 0xe6e88000 0 0x1000>;
+			interrupts = <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 915>,
+				 <&cpg CPG_CORE R8A7742_CLK_RCAN>, <&can_clk>;
+			clock-names = "clkp1", "clkp2", "can_clk";
+			power-domains = <&sysc R8A7742_PD_ALWAYS_ON>;
+			resets = <&cpg 915>;
+			status = "disabled";
+		};
+
 		pwm0: pwm@...30000 {
 			compatible = "renesas,pwm-r8a7742", "renesas,pwm-rcar";
 			reg = <0 0xe6e30000 0 0x8>;
-- 
2.17.1