[U-Boot] [PATCH 4/4] README: add documentation for CONFIG_USB_ULPI*

[Simon Glass]

Hi Igor,

On Mon, Dec 12, 2011 at 2:08 AM, Igor Grinberg <grinberg at compulab.co.il> wrote:
> Add documentation for CONFIG_USB_ULPI and CONFIG_USB_ULPI_VIEWPORT
> configuration options.
>
> Signed-off-by: Igor Grinberg <grinberg at compulab.co.il>
> ---
>  README |    8 ++++++++
>  1 files changed, 8 insertions(+), 0 deletions(-)
>
> diff --git a/README b/README
> index ff72e47..6fe1e0f 100644
> --- a/README
> +++ b/README
> @@ -1185,6 +1185,14 @@ The following options need to be configured:
>                        for your device
>                        - CONFIG_USBD_PRODUCTID 0xFFFF
>
> +- ULPI Layer Support:
> +               The ULPI (UTMI Low Pin (count) Interface) PHYs are supported via
> +               the generic ULPI layer. The generic layer accesses the ULPI PHY
> +               via the platform viewport, so you need both the genric layer and
> +               the viewport enabled. Currently only Chipidea/ARC based
> +               viewport is supported.

Where does it say that only this one is supported in the code? What is
specific to that device?

Regards,
Simon

> +               To enable the ULPI layer support, define CONFIG_USB_ULPI and
> +               CONFIG_USB_ULPI_VIEWPORT in your board configuration file.
>
>  - MMC Support:
>                The MMC controller on the Intel PXA is supported. To
> --
> 1.7.3.4
>