1Renesas R-Car CAN controller Device Tree Bindings 2------------------------------------------------- 3 4Required properties: 5- compatible: "renesas,can-r8a7778" if CAN controller is a part of R8A7778 SoC. 6 "renesas,can-r8a7779" if CAN controller is a part of R8A7779 SoC. 7 "renesas,can-r8a7790" if CAN controller is a part of R8A7790 SoC. 8 "renesas,can-r8a7791" if CAN controller is a part of R8A7791 SoC. 9- reg: physical base address and size of the R-Car CAN register map. 10- interrupts: interrupt specifier for the sole interrupt. 11- clocks: phandles and clock specifiers for 3 CAN clock inputs. 12- clock-names: 3 clock input name strings: "clkp1", "clkp2", "can_clk". 13- pinctrl-0: pin control group to be used for this controller. 14- pinctrl-names: must be "default". 15 16Optional properties: 17- renesas,can-clock-select: R-Car CAN Clock Source Select. Valid values are: 18 <0x0> (default) : Peripheral clock (clkp1) 19 <0x1> : Peripheral clock (clkp2) 20 <0x3> : Externally input clock 21 22Example 23------- 24 25SoC common .dtsi file: 26 27 can0: can@e6e80000 { 28 compatible = "renesas,can-r8a7791"; 29 reg = <0 0xe6e80000 0 0x1000>; 30 interrupts = <0 186 IRQ_TYPE_LEVEL_HIGH>; 31 clocks = <&mstp9_clks R8A7791_CLK_RCAN0>, 32 <&cpg_clocks R8A7791_CLK_RCAN>, <&can_clk>; 33 clock-names = "clkp1", "clkp2", "can_clk"; 34 status = "disabled"; 35 }; 36 37Board specific .dts file: 38 39&can0 { 40 pinctrl-0 = <&can0_pins>; 41 pinctrl-names = "default"; 42 status = "okay"; 43}; 44