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authorMarek BehĂșn <[email protected]>2018-09-24 13:06:52 +0200
committerWim Van Sebroeck <[email protected]>2018-10-13 15:19:40 +0200
commit8562205592a69dd8817f9ff361fc0ffc55f5e9fe (patch)
treef5243614380ab104d3b5f5ef8988ee3dece1e4b3
parent54e3d9b518c8a2a7a3acb14a5912fafd8ef38f40 (diff)
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 <[email protected]> Cc: Rob Herring <[email protected]> Cc: [email protected] Reviewed-by: Rob Herring <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Signed-off-by: Guenter Roeck <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
-rw-r--r--Documentation/devicetree/bindings/watchdog/armada-37xx-wdt.txt23
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/armada-37xx-wdt.txt b/Documentation/devicetree/bindings/watchdog/armada-37xx-wdt.txt
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+++ b/Documentation/devicetree/bindings/watchdog/armada-37xx-wdt.txt
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+* 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>;
+ };