> -----Original Message----- > From: linux-arm-kernel [mailto:linux-arm-kernel-boun...@lists.infradead.org] > On Behalf Of Boris BREZILLON > Sent: 2013年6月11日 18:51 > To: Wim Van Sebroeck; Jean-Christophe Plagniol-Villard; Ferre, Nicolas > Cc: linux-watch...@vger.kernel.org; linux-...@vger.kernel.org; > devicetree-disc...@lists.ozlabs.org; linux-kernel@vger.kernel.org; Rob > Herring; Boris BREZILLON; Rob Landley; Grant Likely; > linux-arm-ker...@lists.infradead.org > Subject: [RFC PATCH 2/4] watchdog: at91sam9_wdt: update device tree doc > > Add new at91sam9 watchdog properties to the documentation. > > Signed-off-by: Boris BREZILLON <b.brezil...@overkiz.com> > --- > .../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..e043106 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 than 16. It is used to compute the > + WDV field. > +- atmel,max-heartbeat-sec : Should contain the minimum heartbeat value in Typo, should be, - atmel,min-heartbeat-sec > + seconds. This value should be less than 4 times 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 watcdog > interrup > + 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 > > Best Regards, Wenyou Yang > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-ker...@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
