summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/usb/usb3503.txt
diff options
context:
space:
mode:
Diffstat (limited to 'dts/Bindings/usb/usb3503.txt')
-rw-r--r--dts/Bindings/usb/usb3503.txt28
1 files changed, 28 insertions, 0 deletions
diff --git a/dts/Bindings/usb/usb3503.txt b/dts/Bindings/usb/usb3503.txt
new file mode 100644
index 0000000000..a018da4a7a
--- /dev/null
+++ b/dts/Bindings/usb/usb3503.txt
@@ -0,0 +1,28 @@
+SMSC USB3503 High-Speed Hub Controller
+
+Required properties:
+- compatible: Should be "smsc,usb3503" or "smsc,usb3503a".
+
+Optional properties:
+- reg: Specifies the i2c slave address, it is required and should be 0x08
+ if I2C is used.
+- connect-gpios: Should specify GPIO for connect.
+- disabled-ports: Should specify the ports unused.
+ '1' or '2' or '3' are availe for this property to describe the port
+ number. 1~3 property values are possible to be desribed.
+ Do not describe this property if all ports have to be enabled.
+- intn-gpios: Should specify GPIO for interrupt.
+- reset-gpios: Should specify GPIO for reset.
+- initial-mode: Should specify initial mode.
+ (1 for HUB mode, 2 for STANDBY mode)
+
+Examples:
+ usb3503@08 {
+ compatible = "smsc,usb3503";
+ reg = <0x08>;
+ connect-gpios = <&gpx3 0 1>;
+ disabled-ports = <2 3>;
+ intn-gpios = <&gpx3 4 1>;
+ reset-gpios = <&gpx3 5 1>;
+ initial-mode = <1>;
+ };