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authorHarini Katakam <harinik@xilinx.com>2014-08-22 14:58:02 +0530
committerWim Van Sebroeck <wim@iguana.be>2014-10-20 20:48:05 +0200
commit191891c0378f44aec8e06e889a08d0b76fe6c5cb (patch)
treece6f5d6d0c21c409b65ea99e412c414d705ba9cf
parent58bf016426594e5370e7e7059698a278294db997 (diff)
devicetree: Add Cadence WDT devicetree bindings documentation
Add cadence-wdt bindings documentation. Signed-off-by: Harini Katakam <harinik@xilinx.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
-rw-r--r--Documentation/devicetree/bindings/watchdog/cadence-wdt.txt24
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/cadence-wdt.txt b/Documentation/devicetree/bindings/watchdog/cadence-wdt.txt
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+++ b/Documentation/devicetree/bindings/watchdog/cadence-wdt.txt
@@ -0,0 +1,24 @@
+Zynq Watchdog Device Tree Bindings
+-------------------------------------------
+
+Required properties:
+- compatible : Should be "cdns,wdt-r1p2".
+- clocks : This is pclk (APB clock).
+- interrupts : This is wd_irq - watchdog timeout interrupt.
+- interrupt-parent : Must be core interrupt controller.
+
+Optional properties
+- reset-on-timeout : If this property exists, then a reset is done
+ when watchdog times out.
+- timeout-sec : Watchdog timeout value (in seconds).
+
+Example:
+ watchdog@f8005000 {
+ compatible = "cdns,wdt-r1p2";
+ clocks = <&clkc 45>;
+ interrupt-parent = <&intc>;
+ interrupts = <0 9 1>;
+ reg = <0xf8005000 0x1000>;
+ reset-on-timeout;
+ timeout-sec = <10>;
+ };