usb: add basic USB configs in Kconfig
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Marek Vasut <marex@denx.de>
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index e69de29..b4a9442 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -0,0 +1,46 @@
+config USB_ARCH_HAS_HCD
+ def_bool y
+
+config USB
+ bool "Support for Host-side USB"
+ depends on USB_ARCH_HAS_HCD
+ ---help---
+ Universal Serial Bus (USB) is a specification for a serial bus
+ subsystem which offers higher speeds and more features than the
+ traditional PC serial port. The bus supplies power to peripherals
+ and allows for hot swapping. Up to 127 USB peripherals can be
+ connected to a single USB host in a tree structure.
+
+ The USB host is the root of the tree, the peripherals are the
+ leaves and the inner nodes are special USB devices called hubs.
+ Most PCs now have USB host ports, used to connect peripherals
+ such as scanners, keyboards, mice, modems, cameras, disks,
+ flash memory, network links, and printers to the PC.
+
+ Say Y here if your computer has a host-side USB port and you want
+ to use USB devices. You then need to say Y to at least one of the
+ Host Controller Driver (HCD) options below. Choose a USB 1.1
+ controller, such as "UHCI HCD support" or "OHCI HCD support",
+ and "EHCI HCD (USB 2.0) support" except for older systems that
+ do not have USB 2.0 support. It doesn't normally hurt to select
+ them all if you are not certain.
+
+ If your system has a device-side USB port, used in the peripheral
+ side of the USB protocol, see the "USB Gadget" framework instead.
+
+ After choosing your HCD, then select drivers for the USB peripherals
+ you'll be using. You may want to check out the information provided
+ in <file:Documentation/usb/> and especially the links given in
+ <file:Documentation/usb/usb-help.txt>.
+
+if USB
+
+source "drivers/usb/host/Kconfig"
+
+config USB_STORAGE
+ bool "USB Mass Storage support"
+ ---help---
+ Say Y here if you want to connect USB mass storage devices to your
+ board's USB port.
+
+endif
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
new file mode 100644
index 0000000..8a6496a
--- /dev/null
+++ b/drivers/usb/host/Kconfig
@@ -0,0 +1,48 @@
+#
+# USB Host Controller Drivers
+#
+comment "USB Host Controller Drivers"
+
+config USB_XHCI_HCD
+ bool "xHCI HCD (USB 3.0) support"
+ ---help---
+ The eXtensible Host Controller Interface (xHCI) is standard for USB 3.0
+ "SuperSpeed" host controller hardware.
+
+config USB_XHCI
+ bool
+ default USB_XHCI_HCD
+ ---help---
+ TODO: rename after most boards switch to Kconfig
+
+if USB_XHCI_HCD
+
+endif
+
+config USB_EHCI_HCD
+ bool "EHCI HCD (USB 2.0) support"
+ ---help---
+ The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0
+ "high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware.
+ If your USB host controller supports USB 2.0, you will likely want to
+ configure this Host Controller Driver.
+
+ EHCI controllers are packaged with "companion" host controllers (OHCI
+ or UHCI) to handle USB 1.1 devices connected to root hub ports. Ports
+ will connect to EHCI if the device is high speed, otherwise they
+ connect to a companion controller. If you configure EHCI, you should
+ probably configure the OHCI (for NEC and some other vendors) USB Host
+ Controller Driver or UHCI (for Via motherboards) Host Controller
+ Driver too.
+
+ You may want to read <file:Documentation/usb/ehci.txt>.
+
+config USB_EHCI
+ bool
+ default USB_EHCI_HCD
+ ---help---
+ TODO: rename after most boards switch to Kconfig
+
+if USB_EHCI_HCD
+
+endif