← Back to branch summary

~ubuntu-branches/ubuntu/precise/linux-lowlatency/precise

« back to all changes in this revision

Viewing changes to Documentation/devicetree/bindings/tty/serial/atmel-usart.txt

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

Show diffs side-by-side

added added

removed removed

Lines of Context:
Documentation/devicetree/bindings/tty/serial/atmel-usart.txt
 
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
        };
 
27