Based on kernel version 3.11. Page generated on 2013-09-03 22:55 EST.
1 * Atmel Universal Synchronous Asynchronous Receiver/Transmitter (USART) 2 3 Required properties: 4 - compatible: Should be "atmel,<chip>-usart" 5 The compatible <chip> indicated will be the first SoC to support an 6 additional mode or an USART new feature. 7 - reg: Should contain registers location and length 8 - interrupts: Should contain interrupt 9 10 Optional properties: 11 - atmel,use-dma-rx: use of PDC or DMA for receiving data 12 - atmel,use-dma-tx: use of PDC or DMA for transmitting data 13 14 <chip> compatible description: 15 - at91rm9200: legacy USART support 16 - at91sam9260: generic USART implementation for SAM9 SoCs 17 18 Example: 19 20 usart0: serial@fff8c000 { 21 compatible = "atmel,at91sam9260-usart"; 22 reg = <0xfff8c000 0x4000>; 23 interrupts = <7>; 24 atmel,use-dma-rx; 25 atmel,use-dma-tx; 26 };