Kernel-3.10.0-957.el7_exynos-usb

Samsung Exynos SoC USB controller

The USB devices interface with USB controllers on Exynos SOCs.
The device node has following properties.

EHCI
Required properties:

• compatible: should be “samsung,exynos4210-ehci” for USB 2.0
  EHCI controller in host mode.
• reg: physical base address of the controller and length of memory mapped
  region.
• interrupts: interrupt number to the cpu.
• clocks: from common clock binding: handle to usb clock.
• clock-names: from common clock binding: Shall be “usbhost”.

Optional properties:

• samsung,vbus-gpio: if present, specifies the GPIO that
  needs to be pulled up for the bus to be powered.

Example:

usb@12110000 {
    compatible = "samsung,exynos4210-ehci";
    reg = <0x12110000 0x100>;
    interrupts = <0 71 0>;
    samsung,vbus-gpio = <&gpx2 6 1 3 3>;

    clocks = <&clock 285>;
    clock-names = "usbhost";
};

OHCI
Required properties:

• compatible: should be “samsung,exynos4210-ohci” for USB 2.0
  OHCI companion controller in host mode.
• reg: physical base address of the controller and length of memory mapped
  region.
• interrupts: interrupt number to the cpu.
• clocks: from common clock binding: handle to usb clock.
• clock-names: from common clock binding: Shall be “usbhost”.

Example:
usb@12120000 {
compatible = “samsung,exynos4210-ohci”;
reg = <0x12120000 0x100>;
interrupts = <0 71 0>;

    clocks = <&clock 285>;
    clock-names = "usbhost";
};