From: Marek BehĂșn Date: Mon, 24 Sep 2018 11:06:52 +0000 (+0200) Subject: dt-bindings: watchdog: Document armada-37xx-wdt binding X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8562205592a69dd8817f9ff361fc0ffc55f5e9fe;p=linux.git dt-bindings: watchdog: Document armada-37xx-wdt binding This adds device tree binding documentation for the CPU watchdog found on Armada 37xx SOCs (EspressoBin, Turris Mox). Signed-off-by: Marek BehĂșn Cc: Rob Herring Cc: devicetree@vger.kernel.org Reviewed-by: Rob Herring Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- diff --git a/Documentation/devicetree/bindings/watchdog/armada-37xx-wdt.txt b/Documentation/devicetree/bindings/watchdog/armada-37xx-wdt.txt new file mode 100644 index 0000000000000..a8d00c31a1d8d --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/armada-37xx-wdt.txt @@ -0,0 +1,23 @@ +* Armada 37xx CPU Watchdog Timer Controller + +Required properties: +- compatible : must be "marvell,armada-3700-wdt" +- reg : base physical address of the controller and length of memory mapped + region. +- clocks : the clock feeding the watchdog timer. See clock-bindings.txt +- marvell,system-controller : reference to syscon node for the CPU Miscellaneous + Registers + +Example: + + cpu_misc: system-controller@d000 { + compatible = "marvell,armada-3700-cpu-misc", "syscon"; + reg = <0xd000 0x1000>; + }; + + wdt: watchdog@8300 { + compatible = "marvell,armada-3700-wdt"; + reg = <0x8300 0x40>; + marvell,system-controller = <&cpu_misc>; + clocks = <&xtalclk>; + };