linux/Documentation/devicetree/bindings/usb/usb-ohci.txt
Maxime Ripard 4615f3bd08 usb: ohci-platform: Enable optional use of reset controller
The OHCI controllers used in the Allwinner A31 are asserted in reset using a
global reset controller.

Add optional support for such a controller in the OHCI platform driver.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 15:53:00 -07:00

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USB OHCI controllers
Required properties:
- compatible : "generic-ohci"
- reg : ohci controller register range (address and length)
- interrupts : ohci controller interrupt
Optional properties:
- big-endian-regs : boolean, set this for hcds with big-endian registers
- big-endian-desc : boolean, set this for hcds with big-endian descriptors
- big-endian : boolean, for hcds with big-endian-regs + big-endian-desc
- clocks : a list of phandle + clock specifier pairs
- phys : phandle + phy specifier pair
- phy-names : "usb"
- resets : phandle + reset specifier pair
Example:
ohci0: usb@01c14400 {
compatible = "allwinner,sun4i-a10-ohci", "generic-ohci";
reg = <0x01c14400 0x100>;
interrupts = <64>;
clocks = <&usb_clk 6>, <&ahb_gates 2>;
phys = <&usbphy 1>;
phy-names = "usb";
};