Add new at91sam9 watchdog properties to the documentation. Signed-off-by: Boris BREZILLON <b.brezillon@xxxxxxxxxxx> --- .../devicetree/bindings/watchdog/atmel-wdt.txt | 30 ++++++++++++++++++-- 1 file changed, 28 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt index fcdd48f..f90e294 100644 --- a/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt @@ -9,11 +9,37 @@ Required properties: Optional properties: - timeout-sec: contains the watchdog timeout in seconds. +- interrupts : Should contain WDT interrupt. +- atmel,max-heartbeat-sec : Should contain the maximum heartbeat value in + seconds. This value should be less or equal to 16. It is used to + compute the WDV field. +- atmel,min-heartbeat-sec : Should contain the minimum heartbeat value in + seconds. This value must be smaller than the max-heartbeat-sec value. + It is used to compute the WDD field. +- atmel,watchdog-type : Should be "hardware" or "software". Hardware watchdog + use the at91 watchdog reset. Software watchdog use the watchdog + interrupt to trigger a software reset. +- atmel,reset-type : Should be "proc" or "all". + "all" : assert peripherals and processor reset signals + "proc" : assert the processor reset signal + This is valid only when using "hardware" watchdog. +- atmel,disable : Should be present if you want to disable the watchdog. +- atmel,idle-halt : Should be present if you want to stop the watchdog when + entering idle state. +- atmel,dbg-halt : Should be present if you want to stop the watchdog when + entering debug state. Example: - watchdog@fffffd40 { compatible = "atmel,at91sam9260-wdt"; reg = <0xfffffd40 0x10>; - timeout-sec = <10>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + timeout-sec = <15>; + atmel,watchdog-type = "hardware"; + atmel,reset-type = "all"; + atmel,dbg-halt; + atmel,idle-halt; + atmel,max-heartbeat-sec = <16>; + atmel,min-heartbeat-sec = <0>; + status = "okay"; }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html