linux-kernel - [PATCH v3 09/11] watchdog: xilinx: Add missing binding

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Message-Id: <e05ec518eeefb0c7f08dad884fdf2f6c86c9c957.1392212059.git.michal.simek@xilinx.com>
Date:	Wed, 12 Feb 2014 14:41:23 +0100
From:	Michal Simek <michal.simek@...inx.com>
To:	linux-kernel@...r.kernel.org, monstr@...str.eu
Cc:	linux@...ck-us.net, wim@...ana.be, linux-watchdog@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v3 09/11] watchdog: xilinx: Add missing binding

Document current driver binding.

Signed-off-by: Michal Simek <michal.simek@...inx.com>
Acked-by: Arnd Bergmann <arnd@...db.de>
---

Changes in v3: None
Changes in v2: None

 .../devicetree/bindings/watchdog/of-xilinx-wdt.txt | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt

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 0000000..6d63782
--- /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@...00000 {
+	clock-frequency = <50000000>;
+	compatible = "xlnx,xps-timebase-wdt-1.00.a";
+	reg = <0x40100000 0x10000>;
+	xlnx,wdt-enable-once = <0x0>;
+	xlnx,wdt-interval = <0x1b>;
+} ;
--
1.8.2.3


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