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Diffstat (limited to 'Documentation/devicetree/bindings/usb/usb-ehci.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/usb-ehci.txt | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/usb-ehci.txt b/Documentation/devicetree/bindings/usb/usb-ehci.txt new file mode 100644 index 000000000..0f1b75386 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/usb-ehci.txt @@ -0,0 +1,42 @@ +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 + - 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"; + }; |