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Documentation / devicetree / bindings / arm / twd.txt




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Based on kernel version 3.9. Page generated on 2013-05-02 22:57 EST.

1	* ARM Timer Watchdog
2	
3	ARM 11MP, Cortex-A5 and Cortex-A9 are often associated with a per-core
4	Timer-Watchdog (aka TWD), which provides both a per-cpu local timer
5	and watchdog.
6	
7	The TWD is usually attached to a GIC to deliver its two per-processor
8	interrupts.
9	
10	** Timer node required properties:
11	
12	- compatible : Should be one of:
13		"arm,cortex-a9-twd-timer"
14		"arm,cortex-a5-twd-timer"
15		"arm,arm11mp-twd-timer"
16	
17	- interrupts : One interrupt to each core
18	
19	- reg : Specify the base address and the size of the TWD timer
20		register window.
21	
22	Example:
23	
24		twd-timer@2c000600 {
25			compatible = "arm,arm11mp-twd-timer"";
26			reg = <0x2c000600 0x20>;
27			interrupts = <1 13 0xf01>;
28		};
29	
30	** Watchdog node properties:
31	
32	- compatible : Should be one of:
33		"arm,cortex-a9-twd-wdt"
34		"arm,cortex-a5-twd-wdt"
35		"arm,arm11mp-twd-wdt"
36	
37	- interrupts : One interrupt to each core
38	
39	- reg : Specify the base address and the size of the TWD watchdog
40		register window.
41	
42	Example:
43	
44		twd-watchdog@2c000620 {
45			compatible = "arm,arm11mp-twd-wdt";
46			reg = <0x2c000620 0x20>;
47			interrupts = <1 14 0xf01>;
48		};
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