aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/arm/twd.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/arm/twd.txt')
-rw-r--r--Documentation/devicetree/bindings/arm/twd.txt48
1 files changed, 48 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/twd.txt b/Documentation/devicetree/bindings/arm/twd.txt
new file mode 100644
index 000000000000..75b8610939fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/twd.txt
@@ -0,0 +1,48 @@
1* ARM Timer Watchdog
2
3ARM 11MP, Cortex-A5 and Cortex-A9 are often associated with a per-core
4Timer-Watchdog (aka TWD), which provides both a per-cpu local timer
5and watchdog.
6
7The TWD is usually attached to a GIC to deliver its two per-processor
8interrupts.
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
22Example:
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
42Example:
43
44 twd-watchdog@2c000620 {
45 compatible = "arm,arm11mp-twd-wdt";
46 reg = <0x2c000620 0x20>;
47 interrupts = <1 14 0xf01>;
48 };