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Commit e0000163 authored by Christian Pellegrin's avatar Christian Pellegrin Committed by David S. Miller
Browse files

can: Driver for the Microchip MCP251x SPI CAN controllers 



Signed-off-by: default avatarChristian Pellegrin <chripell@fsfe.org>
Signed-off-by: default avatarWolfgang Grandegger <wg@grandegger.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 81adee47

drivers/net/can/Kconfig

+6 −0
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@@ -102,6 +102,12 @@ config CAN_TI_HECC 
	  Driver for TI HECC (High End CAN Controller) module found on many

	  TI devices. The device specifications are available from www.ti.com



config CAN_MCP251X

	tristate "Microchip MCP251x SPI CAN controllers"

	depends on CAN_DEV && SPI

	---help---

	  Driver for the Microchip MCP251x SPI CAN controllers.



config CAN_DEBUG_DEVICES

	bool "CAN devices debugging messages"

	depends on CAN

drivers/net/can/Makefile

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@@ -12,5 +12,6 @@ obj-y += usb/ 
obj-$(CONFIG_CAN_SJA1000)	+= sja1000/

obj-$(CONFIG_CAN_AT91)		+= at91_can.o

obj-$(CONFIG_CAN_TI_HECC)	+= ti_hecc.o

obj-$(CONFIG_CAN_MCP251X)	+= mcp251x.o



ccflags-$(CONFIG_CAN_DEBUG_DEVICES) := -DDEBUG

drivers/net/can/mcp251x.c

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include/linux/can/platform/mcp251x.h

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#ifndef __CAN_PLATFORM_MCP251X_H__

#define __CAN_PLATFORM_MCP251X_H__



/*

 *

 * CAN bus driver for Microchip 251x CAN Controller with SPI Interface

 *

 */



#include <linux/spi/spi.h>



/**

 * struct mcp251x_platform_data - MCP251X SPI CAN controller platform data

 * @oscillator_frequency:       - oscillator frequency in Hz

 * @model:                      - actual type of chip

 * @board_specific_setup:       - called before probing the chip (power,reset)

 * @transceiver_enable:         - called to power on/off the transceiver

 * @power_enable:               - called to power on/off the mcp *and* the

 *                                transceiver

 *

 * Please note that you should define power_enable or transceiver_enable or

 * none of them. Defining both of them is no use.

 *

 */



struct mcp251x_platform_data {

	unsigned long oscillator_frequency;

	int model;

#define CAN_MCP251X_MCP2510 0

#define CAN_MCP251X_MCP2515 1

	int (*board_specific_setup)(struct spi_device *spi);

	int (*transceiver_enable)(int enable);

	int (*power_enable) (int enable);

};



#endif /* __CAN_PLATFORM_MCP251X_H__ */