| USB EHCI controllers |
| |
| Required properties: |
| - compatible : should be "generic-ehci". |
| - reg : should contain at least address and length of the standard EHCI |
| register set for the device. Optional platform-dependent registers |
| (debug-port or other) can be also specified here, but only after |
| definition of standard EHCI registers. |
| - interrupts : one EHCI interrupt should be described here. |
| |
| 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 |
| - needs-reset-on-resume : boolean, set this to force EHCI reset after resume |
| - has-transaction-translator : boolean, set this if EHCI have a Transaction |
| Translator built into the root hub. |
| - clocks : a list of phandle + clock specifier pairs. In case of Renesas |
| R-Car Gen3 SoCs: |
| - if a host only channel: first clock should be host. |
| - if a USB DRD channel: first clock should be host and second one |
| should be peripheral. |
| - phys : see usb-hcd.txt in the current directory |
| - resets : phandle + reset specifier pair |
| |
| additionally the properties from usb-hcd.txt (in the current directory) are |
| supported. |
| |
| Example (Sequoia 440EPx): |
| ehci@e0000300 { |
| compatible = "ibm,usb-ehci-440epx", "usb-ehci"; |
| interrupt-parent = <&UIC0>; |
| interrupts = <1a 4>; |
| reg = <0 e0000300 90 0 e0000390 70>; |
| big-endian; |
| }; |
| |
| Example (Allwinner sun4i A10 SoC): |
| ehci0: usb@1c14000 { |
| compatible = "allwinner,sun4i-a10-ehci", "generic-ehci"; |
| reg = <0x01c14000 0x100>; |
| interrupts = <39>; |
| clocks = <&ahb_gates 1>; |
| phys = <&usbphy 1>; |
| phy-names = "usb"; |
| }; |
