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Commit dbd45f73 authored by Alex Yakavenka's avatar Alex Yakavenka
Browse files

can: Add RH850 CAN controller driver 



This driver creates network device of type CAN
and processes tx and rx frames that it sends and
receives over SPI.

Change-Id: I903927d5bb0025c2ad3e9f1dd7cb51de547fc360
Signed-off-by: default avatarAlex Yakavenka <ayakav@codeaurora.org>
parent 7427cd00

Documentation/devicetree/bindings/net/can/rh850-can.txt

0 → 100644
+21 −0
Original line number Diff line number Diff line 
* Renesas RH850 CAN *



This driver implements spi slave protocol for rh850 can controller



Required properties:

  - compatible: Should be "renesas,rh850"

  - reg: Should contain spi chip select

  - interrupt-parent: Should specify interrupt controller for the interrupt

  - interrupts: Should contain IRQ line for the CAN controller

  - spi-max-frequency: Should contain maximum spi clock frequency for

                       slave device



Example:



	can-controller@0 {

		compatible = "renesas,rh850";

		reg = <0>;

		interrupt-parent = <&tlmm>;

		interrupts = <127 0>;

		spi-max-frequency = <5000000>;

	};

arch/arm/boot/dts/qcom/apq8096-v2-auto-dragonboard.dts

+11 −0
Original line number Diff line number Diff line
@@ -23,3 +23,14 @@ 
	qcom,msm-id = <246 0x20001>, <291 0x20001>;

	qcom,board-id = <10 1>;

};



&spi_9 {

	status = "ok";

	can-controller@0 {

		compatible = "renesas,rh850";

		reg = <0>;

		interrupt-parent = <&tlmm>;

		interrupts = <127 0>;

		spi-max-frequency = <5000000>;

	};

};

arch/arm/boot/dts/qcom/apq8096-v3-auto-dragonboard.dts

+11 −0
Original line number Diff line number Diff line
@@ -23,3 +23,14 @@ 
	qcom,msm-id = <246 0x30000>, <291 0x30000>;

	qcom,board-id = <10 1>;

};



&spi_9 {

	status = "ok";

	can-controller@0 {

		compatible = "renesas,rh850";

		reg = <0>;

		interrupt-parent = <&tlmm>;

		interrupts = <127 0>;

		spi-max-frequency = <5000000>;

	};

};

arch/arm/boot/dts/qcom/msm8996-v3-pm8004-agave-adp.dts

+11 −0
Original line number Diff line number Diff line
@@ -21,3 +21,14 @@ 
	compatible = "qcom,msm8996-adp", "qcom,msm8996", "qcom,adp";

	qcom,board-id = <0x00010019 0>;

};



&spi_9 {

	status = "ok";

	can-controller@0 {

		compatible = "renesas,rh850";

		reg = <0>;

		interrupt-parent = <&tlmm>;

		interrupts = <122 0>;

		spi-max-frequency = <5000000>;

	};

};

drivers/net/can/spi/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -7,4 +7,9 @@ config CAN_MCP251X 
	---help---

	  Driver for the Microchip MCP251x SPI CAN controllers.



config CAN_RH850

	tristate "Renesas RH850 SPI CAN controller"

	depends on HAS_DMA

	---help---

	  Driver for the Renesas RH850 SPI CAN controller.

endmenu