atmel,sam-spi

Vendor: Atmel Corporation

Description

These nodes are “spi” bus nodes.

Atmel SAM SPI controller

Properties

Node specific properties

Base properties

Properties not inherited from the base binding file.

Name

Type

Details

peripheral-id

int

 
peripheral ID

This property is required.

pinctrl-0

phandles

 
PIO pin configuration for the various SPI signals that includes
MISO, MOSI, SPCK, and possibly various chip selects signals.  We
expect that the phandles will reference pinctrl nodes.  These
nodes will have a nodelabel that matches the Atmel SoC HAL defines
and be of the form p<port><pin><periph>_<inst>_<signal>.

For example the SPI on SAME7x would be
   pinctrl-0 = <&pd20b_spi0_miso &pd21b_spi0_mosi &pd22b_spi0_spck>;

This property is required.

clock-frequency

int

 
Clock frequency the SPI peripheral is being driven at

cs-gpios

phandle-array

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 “atmel,sam-spi” compatible.

Name

Type

Details

reg

array

 
register space

This property is required.

See Important properties for more information.

interrupts

array

 
interrupts for device

This property is required.

See Important properties for more information.

#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.

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-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

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