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author | Sascha Hauer <s.hauer@pengutronix.de> | 2016-10-18 10:10:24 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-10-18 10:10:24 +0200 |
commit | bfbf18d991756858337f7700e8ff0a6f0dc31afc (patch) | |
tree | cf3568de4fdff1891e277507f08f49a871682706 /dts/Bindings/serial | |
parent | 834f6bf5e5f1169065376ad1aeb6a6266e66ce5c (diff) | |
download | barebox-bfbf18d991756858337f7700e8ff0a6f0dc31afc.tar.gz barebox-bfbf18d991756858337f7700e8ff0a6f0dc31afc.tar.xz |
dts: update to v4.9-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/serial')
-rw-r--r-- | dts/Bindings/serial/8250.txt | 2 | ||||
-rw-r--r-- | dts/Bindings/serial/st,stm32-usart.txt | 46 |
2 files changed, 48 insertions, 0 deletions
diff --git a/dts/Bindings/serial/8250.txt b/dts/Bindings/serial/8250.txt index 936ab5b873..f86bb06c39 100644 --- a/dts/Bindings/serial/8250.txt +++ b/dts/Bindings/serial/8250.txt @@ -42,6 +42,8 @@ Optional properties: - auto-flow-control: one way to enable automatic flow control support. The driver is allowed to detect support for the capability even without this property. +- tx-threshold: Specify the TX FIFO low water indication for parts with + programmable TX FIFO thresholds. Note: * fsl,ns16550: diff --git a/dts/Bindings/serial/st,stm32-usart.txt b/dts/Bindings/serial/st,stm32-usart.txt new file mode 100644 index 0000000000..85ec5f2b19 --- /dev/null +++ b/dts/Bindings/serial/st,stm32-usart.txt @@ -0,0 +1,46 @@ +* 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. +- dmas: phandle(s) to DMA controller node(s). Refer to stm32-dma.txt +- dma-names: "rx" and/or "tx" + +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>; +}; + +usart1: serial@40011000 { + compatible = "st,stm32-usart", "st,stm32-uart"; + reg = <0x40011000 0x400>; + interrupts = <37>; + clocks = <&rcc 0 164>; + dmas = <&dma2 2 4 0x414 0x0>, + <&dma2 7 4 0x414 0x0>; + dma-names = "rx", "tx"; +}; |