usb: add support of generic OHCI devices

This driver is meant to be used with any OHCI-compatible host
controller in case if there's no need for platform-specific
glue such as setup of controller or PHY's power mode via
GPIOs etc.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Marek Vasut <marex@denx.de>
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 0096a2f..39f7185 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -26,6 +26,14 @@
 
 endif
 
+config USB_OHCI_GENERIC
+	bool "Support for generic OHCI USB controller"
+	depends on OF_CONTROL
+	depends on DM_USB
+	default n
+	---help---
+	  Enables support for generic OHCI controller.
+
 config USB_EHCI_HCD
 	bool "EHCI HCD (USB 2.0) support"
 	---help---