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* Atmel Universal Synchronous Asynchronous Receiver/Transmitter (USART)
Required properties:
- compatible: Should be "atmel,<chip>-usart"
The compatible <chip> indicated will be the first SoC to support an
additional mode or an USART new feature.
- reg: Should contain registers location and length
- interrupts: Should contain interrupt
Optional properties:
- atmel,use-dma-rx: use of PDC or DMA for receiving data
- atmel,use-dma-tx: use of PDC or DMA for transmitting data
<chip> compatible description:
- at91rm9200: legacy USART support
- at91sam9260: generic USART implementation for SAM9 SoCs
Example:
usart0: serial@fff8c000 {
compatible = "atmel,at91sam9260-usart";
reg = <0xfff8c000 0x4000>;
interrupts = <7>;
atmel,use-dma-rx;
atmel,use-dma-tx;
};
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