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

Hi Simon,

On 12/14/11 02:28, Simon Glass wrote:

Hi Igor,

On Mon, Dec 12, 2011 at 2:08 AM, Igor Grinberg grinberg@compulab.co.il wrote:

...

Add documentation for CONFIG_USB_ULPI and CONFIG_USB_ULPI_VIEWPORT configuration options.

Signed-off-by: Igor Grinberg grinberg@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?

You mean comments or the code?

What is specific to that device?

The viewport bits? It is not a part of the ULPI spec. Other vendors do not have to comply with those. For example PXA310 has those bits placed and named in some other way...

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