USB: r8a66597-hcd: host controller driver for R8A66597

I would like to submit Renesas R8A66597 USB HCD driver.

R8A66597 is Renesas USB 2.0 host and peripheral combined
controller device originally designed for embedded products.
As a limitation of this device, it does not support externel
hub more than 2 tier, and cannot communicate with a USB
device more than 10. Then this device is not compatible with
EHCI and/or OHCI, I wrote driver support patch based on
sl811 code.

This driver has the following unique specifications:
- Implement transfer timeout to share one pipe with plural endpoint.
- Detach detection of a USB device connected to externel hub.

The driver has been tested external hub, usb-hdd, usb-cdrom,
usb-speaker, mice, keyboard, and usbtest driver.

Signed-off-by : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/Makefile

@@ -16,6 +16,7 @@ obj-$(CONFIG_USB_UHCI_HCD)	+= host/
 obj-$(CONFIG_USB_SL811_HCD)	+= host/
 obj-$(CONFIG_USB_U132_HCD)	+= host/
 obj-$(CONFIG_USB_OHCI_AT91)	+= host/
+obj-$(CONFIG_USB_R8A66597_HCD)	+= host/
 
 obj-$(CONFIG_USB_ACM)		+= class/
 obj-$(CONFIG_USB_PRINTER)	+= class/

drivers/usb/host/Kconfig

@@ -229,3 +229,15 @@ config USB_SL811_CS
 	  To compile this driver as a module, choose M here: the
 	  module will be called "sl811_cs".
 
+config USB_R8A66597_HCD
+	tristate "R8A66597 HCD suppoort"
+	depends on USB
+	help
+	  The R8A66597 is a USB 2.0 host and peripheral controller.
+
+	  Enable this option if your board has this chip, and you want
+	  to use it as a host controller.  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called r8a66597-hcd.
+

drivers/usb/host/Makefile

@@ -15,3 +15,5 @@ obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
 obj-$(CONFIG_USB_SL811_HCD)	+= sl811-hcd.o
 obj-$(CONFIG_USB_SL811_CS)	+= sl811_cs.o
 obj-$(CONFIG_USB_U132_HCD)	+= u132-hcd.o
+obj-$(CONFIG_USB_R8A66597_HCD)	+= r8a66597-hcd.o
+