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| author | Alexandre TORGUE <alexandre.torgue@st.com> | 2016-09-15 19:42:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-22 12:48:55 +0300 |
| commit | 1ff0727a04b21da2affce27d50a2d2d8d615f008 (patch) | |
| tree | e9dd28f690369794e179732f8affa4fae66485e8 | |
| parent | ada8618ff3bfe183cc2c1ae34239a5168ba34411 (diff) | |
| download | linux-1ff0727a04b21da2affce27d50a2d2d8d615f008.tar.xz | |
DOCUMENTATION: dt-bindings: Document the STM32 USART bindings
This adds documentation of device tree bindings for the
STM32 USART
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | Documentation/devicetree/bindings/serial/st,stm32-usart.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt new file mode 100644 index 000000000000..75b14004b45a --- /dev/null +++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt @@ -0,0 +1,34 @@ +* STMicroelectronics STM32 USART + +Required properties: +- compatible: Can be either "st,stm32-usart", "st,stm32-uart", +"st,stm32f7-usart" or "st,stm32f7-uart" depending on whether +the device supports synchronous mode and is compatible with +stm32(f4) or stm32f7. +- reg: The address and length of the peripheral registers space +- interrupts: The interrupt line of the USART instance +- clocks: The input clock of the USART instance + +Optional properties: +- pinctrl: The reference on the pins configuration +- st,hw-flow-ctrl: bool flag to enable hardware flow control. + +Examples: +usart4: serial@40004c00 { + compatible = "st,stm32-uart"; + reg = <0x40004c00 0x400>; + interrupts = <52>; + clocks = <&clk_pclk1>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usart4>; +}; + +usart2: serial@40004400 { + compatible = "st,stm32-usart", "st,stm32-uart"; + reg = <0x40004400 0x400>; + interrupts = <38>; + clocks = <&clk_pclk1>; + st,hw-flow-ctrl; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usart2 &pinctrl_usart2_rtscts>; +}; |