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Commit 0d45bd3d authored by Martin Sperl's avatar Martin Sperl Committed by Chaojun Wang
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driver: can: spi: add mcp25xxfd driver 

mcp25xxfd is a CAN bus controller with SPI interface,
which support CAN FD and CAN classic format CAN frame.

Change-Id: I208abd9522e5142219690cdbb9d09d9db65be997
Git-commit: d9a2e2f2eff657bce35bfde8c33a8df52214b256
Git-repo: https://github.com/Bytewerk/QuadCAN-FD.git


Signed-off-by: default avatarChaojun Wang <chaojun@codeaurora.org>
parent ec12b494

Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.txt

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* Microchip MCP2517 stand-alone CAN controller device tree bindings



Required properties:

 - compatible: Should be one of the following:

   - "microchip,mcp2517fd" for MCP2517fd.

 - reg: SPI chip select.

 - clocks: The clock feeding the CAN controller.

 - interrupt-parent: The parent interrupt controller.

 - interrupts: Should contain IRQ line for the CAN controller.

 - gpio-controller: Marks the device node as a GPIO controller



Optional properties:

 - vdd-supply: Regulator that powers the CAN controller.

 - xceiver-supply: Regulator that powers the CAN transceiver.

 - microchip,clock_out_div = <0|1|2|4|10>: Clock output pin divider

					   0 = Start of Frame output

					   default: 10

 - microchip,clock_div2: bool: divide the internal clock by 2

 - gpio_opendrain: bool: enable open-drain for all pins (except cantx)



Example:

	can0: can@1 {

		compatible = "microchip,mcp2515";

		reg = <1>;

		clocks = <&clk24m>;

		interrupt-parent = <&gpio4>;

		interrupts = <13 0x8>;

		vdd-supply = <&reg5v0>;

		xceiver-supply = <&reg5v0>;

		gpio-controller;

	};

drivers/net/can/spi/Kconfig

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@@ -13,4 +13,10 @@ config QTI_CAN 
	depends on SPI

	---help---

	  Unified driver for QTI CAN controllers.



config CAN_MCP25XXFD

        tristate "Microchip MCP25xxFD SPI CAN controllers"

        depends on HAS_DMA

        ---help---

          Driver for the Microchip MCP25XXFD SPI FD-CAN controller family.

endmenu

drivers/net/can/spi/Makefile

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@@ -5,3 +5,4 @@ 


obj-$(CONFIG_CAN_MCP251X)	+= mcp251x.o

obj-$(CONFIG_QTI_CAN)		+= qti-can.o

obj-$(CONFIG_CAN_MCP25XXFD)     += mcp25xxfd.o

drivers/net/can/spi/mcp25xxfd.c

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File added.

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