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watchdog: xilinx: Add missing binding
Document current driver binding.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
authored by
Michal Simek
and committed by
Wim Van Sebroeck
a8b84b01
75b3c5a8
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Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt
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Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt
···
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Xilinx AXI/PLB soft-core watchdog Device Tree Bindings
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---------------------------------------------------------
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Required properties:
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- compatible : Should be "xlnx,xps-timebase-wdt-1.00.a" or
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"xlnx,xps-timebase-wdt-1.01.a".
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- reg : Physical base address and size
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Optional properties:
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- clock-frequency : Frequency of clock in Hz
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- xlnx,wdt-enable-once : 0 - Watchdog can be restarted
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1 - Watchdog can be enabled just once
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- xlnx,wdt-interval : Watchdog timeout interval in 2^<val> clock cycles,
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<val> is integer from 8 to 31.
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Example:
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axi-timebase-wdt@40100000 {
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clock-frequency = <50000000>;
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compatible = "xlnx,xps-timebase-wdt-1.00.a";
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reg = <0x40100000 0x10000>;
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xlnx,wdt-enable-once = <0x0>;
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xlnx,wdt-interval = <0x1b>;
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} ;