atmel-xplained-header

Vendor: Generic or vendor-independent

Description

GPIO pins exposed on Atmel Xplained headers.

The Xplained layout provide a standard 10 pin header.  A board can have
one or more headers and can share pins.  This connector was developed to
match with Atmel AVR XMEGA devices GPIO port plus power signals.  The Atmel
Xplained Pro standard connector keep compatibility with this header and it
can be defined on every board with an Xplained Pro Connector extension and
every pin can be defined as general purpose GPIO.

The AVR XMEGA port was designed as:

Signal  Main Function
   Px0  SDA
   Px1  SCL
   Px2  RX
   Px3  TX
   Px4  SS
   Px5  MOSI
   Px6  MISO
   Px7  SCK
   GND
   VDD

Documentation:
* https://www.microchip.com/development-tools/xplained-boards
* http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-42091-Atmel-Xplained-Pro-Hardware-Development-Kit_User%20Guide.pdf

This binding provides a nexus mapping for 10 pins where pins are disposed
to have a even and odd column:

                       Connector
Bind      Pin Name     Pin   Pin  Pin Name        Bind
  0          I2C(SDA)  1       2  I2C(SCL)         1
  2          UART(RX)  3       4  UART(TX)         3
  4          SPI(CS0)  5       6  SPI(MOSI)        5
  6         SPI(MISO)  7       8  SPI(SCK)         7
                  GND  9      10  VDD(+3.3V)

Properties

Properties not inherited from the base binding file.

Name

Type

Details

gpio-map

compound

This property is required.

gpio-map-mask

compound

gpio-map-pass-thru

compound

#gpio-cells

int

Number of items to expect in a GPIO specifier

This property is required.

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-xplained-header” compatible.

Name

Type

Details

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

array

register space

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

label

string

Human readable string describing the device (used as device_get_binding() argument)

See Important properties for more information.

clocks

phandle-array

Clock gate information

clock-names

string-array

name of each clock

#address-cells

int

number of address cells in reg property

#size-cells

int

number of size cells in reg property

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