usb: add CONFIG_USB_UHCI_HCD in Kconfig

There is no UHCI driver entry in Kconfig for now, but we have some
UHCI drivers, for example, LEON.  This is a placeholder in case we
want to move them to Kconfig in the future.

The help message was copied from Linux.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index ec5424b2b7518418d718e3d5da4bea99187d9e39..7f562d1e5bf5d3a97da256fdca6b061494a151df 100644 (file)
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -132,3 +132,20 @@ config USB_OHCI_GENERIC
          Enables support for generic OHCI controller.
 
 endif # USB_OHCI_HCD
+
+config USB_UHCI_HCD
+       bool "UHCI HCD (most Intel and VIA) support"
+       ---help---
+         The Universal Host Controller Interface is a standard by Intel for
+         accessing the USB hardware in the PC (which is also called the USB
+         host controller). If your USB host controller conforms to this
+         standard, you may want to say Y, but see below. All recent boards
+         with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX,
+         i810, i820) conform to this standard. Also all VIA PCI chipsets
+         (like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro
+         133) and LEON/GRLIB SoCs with the GRUSBHC controller.
+         If unsure, say Y.
+
+if USB_UHCI_HCD
+
+endif # USB_UHCI_HCD