Samsung High Speed USB OTG controller
|
-----------------------------
|
|
The Samsung HSOTG IP can be found on Samsung SoCs, from S3C6400 onwards.
|
It gives functionality of OTG-compliant USB 2.0 host and device with
|
support for USB 2.0 high-speed (480Mbps) and full-speed (12 Mbps)
|
operation.
|
|
Currently only device mode is supported.
|
|
Binding details
|
-----
|
|
Required properties:
|
- compatible: "samsung,s3c6400-hsotg" should be used for all currently
|
supported SoC,
|
- interrupts: specifier of interrupt signal of interrupt controller,
|
according to bindings of interrupt controller,
|
- clocks: contains an array of clock specifiers:
|
- first entry: OTG clock
|
- clock-names: contains array of clock names:
|
- first entry: must be "otg"
|
- vusb_d-supply: phandle to voltage regulator of digital section,
|
- vusb_a-supply: phandle to voltage regulator of analog section.
|
|
Example
|
-----
|
|
hsotg@12480000 {
|
compatible = "samsung,s3c6400-hsotg";
|
reg = <0x12480000 0x20000>;
|
interrupts = <0 71 0>;
|
clocks = <&clock 305>;
|
clock-names = "otg";
|
vusb_d-supply = <&vusb_reg>;
|
vusb_a-supply = <&vusbdac_reg>;
|
};
|
