st,stm32-usart

Vendor: STMicroelectronics

Description

These nodes are “uart” bus nodes.

STM32 USART

Properties

Node specific properties

Base properties

Properties not inherited from the base binding file.

Name

Type

Details

parity

int

 
Configures the parity of the adapter. Value 0 for none, 1 for odd
and 2 for even parity.  Default to none if not specified.

pinctrl-0

phandles

 
GPIO pin configuration for serial signals (RX, TX, RTS, CTS).  We expect
that the phandles will reference pinctrl nodes.

For example the USART1 would be
   pinctrl-0 = <&usart1_tx_pb6 &usart1_rx_pb7>;

clock-frequency

int

 
Clock frequency information for UART operation

current-speed

int

 
Initial baud rate setting for UART

hw-flow-control

boolean

 
Set to enable RTS/CTS flow control at boot time

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 “st,stm32-usart” 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.

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

#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