diff options
Diffstat (limited to 'Documentation/devicetree/bindings/watchdog')
3 files changed, 35 insertions, 5 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/marvel.txt b/Documentation/devicetree/bindings/watchdog/marvel.txt index 5dc8d30061ce..de11eb4c121f 100644 --- a/Documentation/devicetree/bindings/watchdog/marvel.txt +++ b/Documentation/devicetree/bindings/watchdog/marvel.txt @@ -3,17 +3,24 @@ Required Properties: - Compatibility : "marvell,orion-wdt" -- reg : Address of the timer registers + "marvell,armada-370-wdt" + "marvell,armada-xp-wdt" + +- reg : Should contain two entries: first one with the + timer control address, second one with the + rstout enable address. Optional properties: +- interrupts : Contains the IRQ for watchdog expiration - timeout-sec : Contains the watchdog timeout in seconds Example: wdt@20300 { compatible = "marvell,orion-wdt"; - reg = <0x20300 0x28>; + reg = <0x20300 0x28>, <0x20108 0x4>; + interrupts = <3>; timeout-sec = <10>; status = "okay"; }; diff --git a/Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt b/Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt new file mode 100644 index 000000000000..6d63782a7378 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt @@ -0,0 +1,23 @@ +Xilinx AXI/PLB soft-core watchdog Device Tree Bindings +--------------------------------------------------------- + +Required properties: +- compatible : Should be "xlnx,xps-timebase-wdt-1.00.a" or + "xlnx,xps-timebase-wdt-1.01.a". +- reg : Physical base address and size + +Optional properties: +- clock-frequency : Frequency of clock in Hz +- xlnx,wdt-enable-once : 0 - Watchdog can be restarted + 1 - Watchdog can be enabled just once +- xlnx,wdt-interval : Watchdog timeout interval in 2^<val> clock cycles, + <val> is integer from 8 to 31. + +Example: +axi-timebase-wdt@40100000 { + clock-frequency = <50000000>; + compatible = "xlnx,xps-timebase-wdt-1.00.a"; + reg = <0x40100000 0x10000>; + xlnx,wdt-enable-once = <0x0>; + xlnx,wdt-interval = <0x1b>; +} ; diff --git a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt index e39cb266c8f4..b8f75c51453a 100644 --- a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt @@ -2,13 +2,13 @@ Allwinner SoCs Watchdog timer Required properties: -- compatible : should be "allwinner,<soc-family>-wdt", the currently supported - SoC families being sun4i and sun6i +- compatible : should be either "allwinner,sun4i-a10-wdt" or + "allwinner,sun6i-a31-wdt" - reg : Specifies base physical address and size of the registers. Example: wdt: watchdog@01c20c90 { - compatible = "allwinner,sun4i-wdt"; + compatible = "allwinner,sun4i-a10-wdt"; reg = <0x01c20c90 0x10>; }; |