Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / arm / twd.txt

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+* ARM Timer Watchdog
+
+ARM 11MP, Cortex-A5 and Cortex-A9 are often associated with a per-core
+Timer-Watchdog (aka TWD), which provides both a per-cpu local timer
+and watchdog.
+
+The TWD is usually attached to a GIC to deliver its two per-processor
+interrupts.
+
+** Timer node required properties:
+
+- compatible : Should be one of:
+       "arm,cortex-a9-twd-timer"
+       "arm,cortex-a5-twd-timer"
+       "arm,arm11mp-twd-timer"
+
+- interrupts : One interrupt to each core
+
+- reg : Specify the base address and the size of the TWD timer
+       register window.
+
+Example:
+
+       twd-timer@2c000600 {
+               compatible = "arm,arm11mp-twd-timer"";
+               reg = <0x2c000600 0x20>;
+               interrupts = <1 13 0xf01>;
+       };
+
+** Watchdog node properties:
+
+- compatible : Should be one of:
+       "arm,cortex-a9-twd-wdt"
+       "arm,cortex-a5-twd-wdt"
+       "arm,arm11mp-twd-wdt"
+
+- interrupts : One interrupt to each core
+
+- reg : Specify the base address and the size of the TWD watchdog
+       register window.
+
+Example:
+
+       twd-watchdog@2c000620 {
+               compatible = "arm,arm11mp-twd-wdt";
+               reg = <0x2c000620 0x20>;
+               interrupts = <1 14 0xf01>;
+       };