summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/phy/keystone-usb-phy.txt')
-rw-r--r--Documentation/devicetree/bindings/phy/keystone-usb-phy.txt20
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt b/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt
new file mode 100644
index 000000000000..f37b3a86341d
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt
@@ -0,0 +1,20 @@
+TI Keystone USB PHY
+
+Required properties:
+ - compatible: should be "ti,keystone-usbphy".
+ - #address-cells, #size-cells : should be '1' if the device has sub-nodes
+ with 'reg' property.
+ - reg : Address and length of the usb phy control register set.
+
+The main purpose of this PHY driver is to enable the USB PHY reference clock
+gate on the Keystone SOC for both the USB2 and USB3 PHY. Otherwise it is just
+an NOP PHY driver. Hence this node is referenced as both the usb2 and usb3
+phy node in the USB Glue layer driver node.
+
+usb_phy: usb_phy@2620738 {
+ compatible = "ti,keystone-usbphy";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x2620738 32>;
+ status = "disabled";
+};