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* [PATCH 1/3] dt-bindings: watchdog: sam9x60_wdt: add bindings
@ 2019-10-02  7:35 ` Eugen.Hristev
  0 siblings, 0 replies; 25+ messages in thread
From: Eugen.Hristev @ 2019-10-02  7:35 UTC (permalink / raw)
  To: wim, linux, robh+dt, linux-watchdog, devicetree, linux-kernel,
	linux-arm-kernel
  Cc: Nicolas.Ferre, alexandre.belloni, Eugen.Hristev

From: Eugen Hristev <eugen.hristev@microchip.com>

Add bindings for Microchip SAM9X60 Watchdog Timer

It has the same bindings as
Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt
except the compatible.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
 .../devicetree/bindings/watchdog/sam9x60-wdt.txt   | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt

diff --git a/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt b/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt
new file mode 100644
index 00000000..74b4e2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt
@@ -0,0 +1,34 @@
+* Microchip SAM9X60 Watchdog Timer (WDT) Controller
+
+Required properties:
+- compatible: "microchip,sam9x60-wdt"
+- reg: base physical address and length of memory mapped region.
+
+Optional properties:
+- timeout-sec: watchdog timeout value (in seconds).
+- interrupts: interrupt number to the CPU.
+- atmel,watchdog-type: should be "hardware" or "software".
+	"hardware": enable watchdog fault reset. A watchdog fault triggers
+		    watchdog reset.
+	"software": enable watchdog fault interrupt. A watchdog fault asserts
+		    watchdog interrupt.
+- atmel,idle-halt: present if you want to stop the watchdog when the CPU is
+		   in idle state.
+	CAUTION: This property should be used with care, it actually makes the
+	watchdog not counting when the CPU is in idle state, therefore the
+	watchdog reset time depends on mean CPU usage and will not reset at all
+	if the CPU stop working while it is in idle state, which is probably
+	not what you want.
+- atmel,dbg-halt: present if you want to stop the watchdog when the CPU is
+		  in debug state.
+
+Example:
+	watchdog@ffffff80 {
+		compatible = "microchip,sam9x60-wdt";
+		reg = <0xffffff80 0x24>;
+		interrupts = <1 IRQ_TYPE_LEVEL_HIGH 5>;
+		timeout-sec = <10>;
+		atmel,watchdog-type = "hardware";
+		atmel,dbg-halt;
+		atmel,idle-halt;
+	};
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 25+ messages in thread

end of thread, other threads:[~2019-10-07 14:17 UTC | newest]

Thread overview: 25+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-10-02  7:35 [PATCH 1/3] dt-bindings: watchdog: sam9x60_wdt: add bindings Eugen.Hristev
2019-10-02  7:35 ` Eugen.Hristev
2019-10-02  7:35 ` [PATCH 2/3] watchdog: sam9x60_wdt: introduce sam9x60 watchdog timer driver Eugen.Hristev
2019-10-02  7:35   ` Eugen.Hristev
2019-10-02 10:23   ` Alexandre Belloni
2019-10-02 10:23     ` Alexandre Belloni
2019-10-02 11:07     ` Eugen.Hristev
2019-10-02 11:07       ` Eugen.Hristev
2019-10-02 11:07       ` Eugen.Hristev
2019-10-02 13:16   ` Guenter Roeck
2019-10-07  7:58     ` Eugen.Hristev
2019-10-07  7:58       ` Eugen.Hristev
2019-10-07 12:36       ` Guenter Roeck
2019-10-07 13:14         ` Alexandre Belloni
2019-10-07 13:14           ` Alexandre Belloni
2019-10-07 14:17           ` Eugen.Hristev
2019-10-07 14:17             ` Eugen.Hristev
2019-10-07 14:17             ` Eugen.Hristev
2019-10-02 13:38   ` kbuild test robot
2019-10-02 13:38     ` kbuild test robot
2019-10-02 13:38     ` kbuild test robot
2019-10-02  7:35 ` [PATCH 3/3] MAINTAINERS: add sam9x60_wdt Eugen.Hristev
2019-10-02  7:35   ` Eugen.Hristev
2019-10-02  9:56 ` [PATCH 1/3] dt-bindings: watchdog: sam9x60_wdt: add bindings Alexandre Belloni
2019-10-02  9:56   ` Alexandre Belloni

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