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>
This commit is contained in:
Michal Simek 2014-02-12 14:41:23 +01:00 committed by Wim Van Sebroeck
parent 75b3c5a827
commit a8b84b01e4

View file

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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@40100000 {
clock-frequency = <50000000>;
compatible = "xlnx,xps-timebase-wdt-1.00.a";
reg = <0x40100000 0x10000>;
xlnx,wdt-enable-once = <0x0>;
xlnx,wdt-interval = <0x1b>;
} ;