Bosch C_CAN/D_CAN controller Device Tree Bindings
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Required properties:
- compatible		: Should be "bosch,c_can" for C_CAN controllers and
			  "bosch,d_can" for D_CAN controllers.
			  Can be "ti,dra7-d_can", "ti,am3352-d_can" or
			  "ti,am4372-d_can".
- reg			: physical base address and size of the C_CAN/D_CAN
			  registers map
- interrupts		: property with a value describing the interrupt
			  number

Optional properties:
- ti,hwmods		: Must be "d_can<n>" or "c_can<n>", n being the
			  instance number
- syscon-raminit	: Handle to system control region that contains the
			  RAMINIT register, register offset to the RAMINIT
			  register and the CAN instance number (0 offset).

Note: "ti,hwmods" field is used to fetch the base address and irq
resources from TI, omap hwmod data base during device registration.
Future plan is to migrate hwmod data base contents into device tree
blob so that, all the required data will be used from device tree dts
file.

Example:

Step1: SoC common .dtsi file

	dcan1: d_can@481d0000 {
		compatible = "bosch,d_can";
		reg = <0x481d0000 0x2000>;
		interrupts = <55>;
		interrupt-parent = <&intc>;
		status = "disabled";
	};

(or)

	dcan1: d_can@481d0000 {
		compatible = "bosch,d_can";
		ti,hwmods = "d_can1";
		reg = <0x481d0000 0x2000>;
		interrupts = <55>;
		interrupt-parent = <&intc>;
		status = "disabled";
	};

Step 2: board specific .dts file

	&dcan1 {
		status = "okay";
	};