ARM: dts: r8a7744: Add CAN support

Add the definitions for can0 and can1 to the r8a7744 SoC dtsi.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7744.dtsi

@@ -884,13 +884,31 @@ hscif2: serial@e62d0000 {
 		};
 
 		can0: can@e6e80000 {
+			compatible = "renesas,can-r8a7744",
+				     "renesas,rcar-gen2-can";
 			reg = <0 0xe6e80000 0 0x1000>;
-			/* placeholder */
+			interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 916>,
+				 <&cpg CPG_CORE R8A7744_CLK_RCAN>,
+				 <&can_clk>;
+			clock-names = "clkp1", "clkp2", "can_clk";
+			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
+			resets = <&cpg 916>;
+			status = "disabled";
 		};
 
 		can1: can@e6e88000 {
+			compatible = "renesas,can-r8a7744",
+				     "renesas,rcar-gen2-can";
 			reg = <0 0xe6e88000 0 0x1000>;
-			/* placeholder */
+			interrupts = <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 915>,
+				 <&cpg CPG_CORE R8A7744_CLK_RCAN>,
+				 <&can_clk>;
+			clock-names = "clkp1", "clkp2", "can_clk";
+			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
+			resets = <&cpg 915>;
+			status = "disabled";
 		};
 
 		rcar_sound: sound@ec500000 {