From d70a560fd77b8a357257c7baa0a24b326c097bc3 Mon Sep 17 00:00:00 2001 From: Igor Grinberg Date: Mon, 12 Dec 2011 12:08:35 +0200 Subject: [PATCH] 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 --- README | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/README b/README index ff72e4705f..6fe1e0fc2d 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. + 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 -- 2.25.1