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81 lines
2.8 KiB
81 lines
2.8 KiB
Freescale SOC USB controllers |
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The device node for a USB controller that is part of a Freescale |
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SOC is as described in the document "Open Firmware Recommended |
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Practice : Universal Serial Bus" with the following modifications |
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and additions : |
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Required properties : |
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- compatible : Should be "fsl-usb2-mph" for multi port host USB |
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controllers, or "fsl-usb2-dr" for dual role USB controllers |
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or "fsl,mpc5121-usb2-dr" for dual role USB controllers of MPC5121. |
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Wherever applicable, the IP version of the USB controller should |
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also be mentioned (for eg. fsl-usb2-dr-v2.2 for bsc9132). |
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- phy_type : For multi port host USB controllers, should be one of |
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"ulpi", or "serial". For dual role USB controllers, should be |
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one of "ulpi", "utmi", "utmi_wide", or "serial". |
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- reg : Offset and length of the register set for the device |
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- port0 : boolean; if defined, indicates port0 is connected for |
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fsl-usb2-mph compatible controllers. Either this property or |
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"port1" (or both) must be defined for "fsl-usb2-mph" compatible |
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controllers. |
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- port1 : boolean; if defined, indicates port1 is connected for |
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fsl-usb2-mph compatible controllers. Either this property or |
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"port0" (or both) must be defined for "fsl-usb2-mph" compatible |
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controllers. |
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- dr_mode : indicates the working mode for "fsl-usb2-dr" compatible |
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controllers. Can be "host", "peripheral", or "otg". Default to |
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"host" if not defined for backward compatibility. |
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Recommended properties : |
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- interrupts : <a b> where a is the interrupt number and b is a |
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field that represents an encoding of the sense and level |
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information for the interrupt. This should be encoded based on |
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the information in section 2) depending on the type of interrupt |
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controller you have. |
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Optional properties : |
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- fsl,invert-drvvbus : boolean; for MPC5121 USB0 only. Indicates the |
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port power polarity of internal PHY signal DRVVBUS is inverted. |
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- fsl,invert-pwr-fault : boolean; for MPC5121 USB0 only. Indicates |
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the PWR_FAULT signal polarity is inverted. |
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Example multi port host USB controller device node : |
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usb@22000 { |
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compatible = "fsl-usb2-mph"; |
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reg = <22000 1000>; |
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#address-cells = <1>; |
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#size-cells = <0>; |
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interrupt-parent = <700>; |
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interrupts = <27 1>; |
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phy_type = "ulpi"; |
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port0; |
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port1; |
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}; |
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Example dual role USB controller device node : |
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usb@23000 { |
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compatible = "fsl-usb2-dr"; |
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reg = <23000 1000>; |
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#address-cells = <1>; |
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#size-cells = <0>; |
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interrupt-parent = <700>; |
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interrupts = <26 1>; |
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dr_mode = "otg"; |
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phy = "ulpi"; |
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}; |
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Example dual role USB controller device node for MPC5121ADS: |
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usb@4000 { |
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compatible = "fsl,mpc5121-usb2-dr"; |
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reg = <0x4000 0x1000>; |
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#address-cells = <1>; |
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#size-cells = <0>; |
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interrupt-parent = < &ipic >; |
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interrupts = <44 0x8>; |
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dr_mode = "otg"; |
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phy_type = "utmi_wide"; |
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fsl,invert-drvvbus; |
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fsl,invert-pwr-fault; |
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};
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