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Samsung Exynos SoC USB controller
The device node for USB controller for Samsung SOC have
following properties
OHCI
Required properties:
- compatible: should be "samsung,exynos-ohci" for USB 2.0
OHCI companion controller in host mode.
- reg: physical base address of the controller and length
of memory mapped.
- interrupts: interrupt number to the cpu.
ohci {
compatible = "samsung,exynos-ohci";
reg = <0x12120000 0x100>;
interrupts = <0 71 0>;
};
EHCI
Required properties:
- compatible: should be "samsung,exynos-ehci" for USB 2.0
EHCI controller in host mode.
- reg: physical base address of the controller and length
of memory mapped.
- interrupts: interrupt number to the cpu.
Optional properties:
- samsung,vbus-gpio: if present, specifies the GPIO
that needs to be pulled up for the bus to be powered.
ehci {
compatible = "samsung,exynos-ehci";
reg = <0x12110000 0x100>;
interrupts = <0 71 0>;
};
ehci {
samsung,vbus-gpio = <&gpx2 6 1 3 3>;
};
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