dt: watchdog: Add DT binding documentation for jz4740 watchdog timer
Add binding for jz4740 watchdog timer. It is a simple watchdog timer. Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Ingenic Watchdog Timer (WDT) Controller for JZ4740
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Required properties:
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compatible: "ingenic,jz4740-watchdog"
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reg: Register address and length for watchdog registers
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Example:
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watchdog: jz4740-watchdog@0x10002000 {
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compatible = "ingenic,jz4740-watchdog";
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reg = <0x10002000 0x100>;
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};
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