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microchip,mcp2515 (on spi bus)¶

Vendor: Microchip Technology Inc.

Description¶

These nodes are “can” bus nodes.

MCP2515 SPI CAN controller

Properties¶

Properties not inherited from the base binding file.

Name	Type	Details
`osc-freq`	`int`	Frequency of the external oscillator This property is required.
`int-gpios`	`phandle-array`	Interrupt pin. This pin signals active low when produced by the controller. The property value should ensure the flags properly describe the signal that is presented to the driver. This property is required.
`spi-max-frequency`	`int`	Maximum clock frequency of device's SPI interface in Hz This property is required.
`supply-gpios`	`phandle-array`	GPIO specifier that controls power to the device. This property should be provided when the device has a dedicated switch that controls power to the device. The supply state is entirely the responsibility of the device driver. Contrast with vin-supply.
`vin-supply`	`phandle`	Reference to the regulator that controls power to the device. The referenced devicetree node must have a regulator compatible. This property should be provided when device power is supplied by a shared regulator. The supply state is dependent on the request status of all devices fed by the regulator. Contrast with supply-gpios. If both properties are provided then the regulator must be requested before the supply GPIOS is set to an active state, and the supply GPIOS must be set to an inactive state before releasing the regulator.
`bus-speed`	`int`	bus speed in Baud/s This property is required.
`sjw`	`int`	Resynchronization jump width (ISO 11898-1) This property is required.
`prop-seg`	`int`	Time quantums of propagation segment (ISO 11898-1)
`phase-seg1`	`int`	Time quantums of phase buffer 1 segment (ISO 11898-1)
`phase-seg2`	`int`	Time quantums of phase buffer 2 segment (ISO 11898-1)
`sample-point`	`int`	Sample point in permille. This param is required if segments are not given. If the sample point is given, the segments are ignored.

Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “microchip,mcp2515” compatible.

Name	Type	Details
`reg`	`array`	register space This property is required. See Important properties for more information.
`label`	`string`	Human readable string describing the device (used as device_get_binding() argument) This property is required. See Important properties for more information.
`status`	`string`	indicates the operational status of a device Legal values: `'ok'`, `'okay'`, `'disabled'`, `'reserved'`, `'fail'`, `'fail-sss'` See Important properties for more information.
`compatible`	`string-array`	compatible strings This property is required. See Important properties for more information.
`reg-names`	`string-array`	name of each register space
`interrupts`	`array`	interrupts for device See Important properties for more information.
`interrupts-extended`	`compound`	extended interrupt specifier for device
`interrupt-names`	`string-array`	name of each interrupt
`interrupt-parent`	`phandle`	phandle to interrupt controller node
`clocks`	`phandle-array`	Clock gate information
`clock-names`	`string-array`	name of each clock
`#address-cells`	`int`	number of address cells in reg property This property is required. Constant value: `1`
`#size-cells`	`int`	number of size cells in reg property This property is required.
`dmas`	`phandle-array`	DMA channels specifiers
`dma-names`	`string-array`	Provided names of DMA channel specifiers
`io-channels`	`phandle-array`	IO channels specifiers
`io-channel-names`	`string-array`	Provided names of IO channel specifiers
`wakeup-source`	`boolean`	Property to identify that a device can be used as wake up source. When this property is provided a specific flag is set into the device that tells the system that the device is capable of wake up the system. Wake up capable devices are disabled (interruptions will not wake up the system) by default but they can be enabled at runtime if necessary.