USB EHCI controllers
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Required properties:
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- compatible : should be "generic-ehci".
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- reg : should contain at least address and length of the standard EHCI
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register set for the device. Optional platform-dependent registers
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(debug-port or other) can be also specified here, but only after
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definition of standard EHCI registers.
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- interrupts : one EHCI interrupt should be described here.
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Optional properties:
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- big-endian-regs : boolean, set this for hcds with big-endian registers
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- big-endian-desc : boolean, set this for hcds with big-endian descriptors
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- big-endian : boolean, for hcds with big-endian-regs + big-endian-desc
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- needs-reset-on-resume : boolean, set this to force EHCI reset after resume
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- has-transaction-translator : boolean, set this if EHCI have a Transaction
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Translator built into the root hub.
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- rockchip-has-usic : boolean, set this if EHCI use usic phy.
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- clocks : a list of phandle + clock specifier pairs
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- phys : see usb-hcd.txt in the current directory
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- resets : phandle + reset specifier pair
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additionally the properties from usb-hcd.txt (in the current directory) are
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supported.
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Example (Sequoia 440EPx):
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ehci@e0000300 {
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compatible = "ibm,usb-ehci-440epx", "usb-ehci";
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interrupt-parent = <&UIC0>;
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interrupts = <1a 4>;
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reg = <0 e0000300 90 0 e0000390 70>;
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big-endian;
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};
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Example (Allwinner sun4i A10 SoC):
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ehci0: usb@1c14000 {
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compatible = "allwinner,sun4i-a10-ehci", "generic-ehci";
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reg = <0x01c14000 0x100>;
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interrupts = <39>;
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clocks = <&ahb_gates 1>;
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phys = <&usbphy 1>;
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phy-names = "usb";
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};
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