From b0abc8ff75e25901fe4afcd62d5e4315df4a8138 Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Tue, 31 Mar 2015 09:14:58 +0300 Subject: watchdog: digicolor: document device tree binding Add a device tree binding documentation to the watchdog hardware block on the Conexant CX92755 SoC. The CX92755 is from the Digicolor SoCs series. Other SoCs in that series may share the same hardware block. Signed-off-by: Baruch Siach Reviewed-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- .../devicetree/bindings/watchdog/digicolor-wdt.txt | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/digicolor-wdt.txt (limited to 'Documentation/devicetree/bindings/watchdog') diff --git a/Documentation/devicetree/bindings/watchdog/digicolor-wdt.txt b/Documentation/devicetree/bindings/watchdog/digicolor-wdt.txt new file mode 100644 index 000000000000..a882967e17d4 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/digicolor-wdt.txt @@ -0,0 +1,25 @@ +Conexant Digicolor SoCs Watchdog timer + +The watchdog functionality in Conexant Digicolor SoCs relies on the so called +"Agent Communication" block. This block includes the eight programmable system +timer counters. The first timer (called "Timer A") is the only one that can be +used as watchdog. + +Required properties: + +- compatible : Should be "cnxt,cx92755-wdt" +- reg : Specifies base physical address and size of the registers +- clocks : phandle; specifies the clock that drives the timer + +Optional properties: + +- timeout-sec : Contains the watchdog timeout in seconds + +Example: + + watchdog@f0000fc0 { + compatible = "cnxt,cx92755-wdt"; + reg = <0xf0000fc0 0x8>; + clocks = <&main_clk>; + timeout-sec = <15>; + }; -- cgit v1.2.3