summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt')
-rw-r--r--Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt28
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt b/Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt
new file mode 100644
index 000000000000..a88f1f05fbd6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt
@@ -0,0 +1,28 @@
+* Xtal Clock bindings for Marvell Armada 37xx SoCs
+
+Marvell Armada 37xx SoCs allow to determine the xtal clock frequencies by
+reading the gpio latch register.
+
+This node must be a subnode of the node exposing the register address
+of the GPIO block where the gpio latch is located.
+
+Required properties:
+- compatible : shall be one of the following:
+ "marvell,armada-3700-xtal-clock"
+- #clock-cells : from common clock binding; shall be set to 0
+
+Optional properties:
+- clock-output-names : from common clock binding; allows overwrite default clock
+ output names ("xtal")
+
+Example:
+gpio1: gpio@13800 {
+ compatible = "marvell,armada-3700-gpio", "syscon", "simple-mfd";
+ reg = <0x13800 0x1000>;
+
+ xtalclk: xtal-clk {
+ compatible = "marvell,armada-3700-xtal-clock";
+ clock-output-names = "xtal";
+ #clock-cells = <0>;
+ };
+};