diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/atmel-usart.txt | 7 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt | 28 |
2 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/atmel-usart.txt b/Documentation/devicetree/bindings/serial/atmel-usart.txt index 2191dcb9f1d..9c5d19ac935 100644 --- a/Documentation/devicetree/bindings/serial/atmel-usart.txt +++ b/Documentation/devicetree/bindings/serial/atmel-usart.txt @@ -6,6 +6,9 @@ Required properties: additional mode or an USART new feature. - reg: Should contain registers location and length - interrupts: Should contain interrupt +- clock-names: tuple listing input clock names. + Required elements: "usart" +- clocks: phandles to input clocks. Optional properties: - atmel,use-dma-rx: use of PDC or DMA for receiving data @@ -26,6 +29,8 @@ Example: compatible = "atmel,at91sam9260-usart"; reg = <0xfff8c000 0x4000>; interrupts = <7>; + clocks = <&usart0_clk>; + clock-names = "usart"; atmel,use-dma-rx; atmel,use-dma-tx; }; @@ -35,6 +40,8 @@ Example: compatible = "atmel,at91sam9260-usart"; reg = <0xf001c000 0x100>; interrupts = <12 4 5>; + clocks = <&usart0_clk>; + clock-names = "usart"; atmel,use-dma-rx; atmel,use-dma-tx; dmas = <&dma0 2 0x3>, diff --git a/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt b/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt new file mode 100644 index 00000000000..12f3cf834de --- /dev/null +++ b/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt @@ -0,0 +1,28 @@ +* Cirrus Logic CLPS711X Universal Asynchronous Receiver/Transmitter (UART) + +Required properties: +- compatible: Should be "cirrus,clps711x-uart". +- reg: Address and length of the register set for the device. +- interrupts: Should contain UART TX and RX interrupt. +- clocks: Should contain UART core clock number. +- syscon: Phandle to SYSCON node, which contain UART control bits. + +Optional properties: +- uart-use-ms: Indicate the UART has modem signal (DCD, DSR, CTS). + +Note: Each UART port should have an alias correctly numbered +in "aliases" node. + +Example: + aliases { + serial0 = &uart1; + }; + + uart1: uart@80000480 { + compatible = "cirrus,clps711x-uart"; + reg = <0x80000480 0x80>; + interrupts = <12 13>; + clocks = <&clks 11>; + syscon = <&syscon1>; + uart-use-ms; + }; |