README: add documentation for CONFIG_USB_ULPI*
Add documentation for CONFIG_USB_ULPI and CONFIG_USB_ULPI_VIEWPORT configuration options. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
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README
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README
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@ -1185,6 +1185,14 @@ The following options need to be configured:
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for your device
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for your device
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- CONFIG_USBD_PRODUCTID 0xFFFF
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- CONFIG_USBD_PRODUCTID 0xFFFF
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- ULPI Layer Support:
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The ULPI (UTMI Low Pin (count) Interface) PHYs are supported via
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the generic ULPI layer. The generic layer accesses the ULPI PHY
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via the platform viewport, so you need both the genric layer and
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the viewport enabled. Currently only Chipidea/ARC based
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viewport is supported.
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To enable the ULPI layer support, define CONFIG_USB_ULPI and
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CONFIG_USB_ULPI_VIEWPORT in your board configuration file.
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- MMC Support:
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- MMC Support:
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The MMC controller on the Intel PXA is supported. To
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The MMC controller on the Intel PXA is supported. To
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