xref: /openbmc/u-boot/drivers/usb/Kconfig (revision 0adb5b76)
1config USB_ARCH_HAS_HCD
2	def_bool y
3
4config USB
5	bool "Support for Host-side USB"
6	depends on USB_ARCH_HAS_HCD
7	---help---
8	  Universal Serial Bus (USB) is a specification for a serial bus
9	  subsystem which offers higher speeds and more features than the
10	  traditional PC serial port.  The bus supplies power to peripherals
11	  and allows for hot swapping.  Up to 127 USB peripherals can be
12	  connected to a single USB host in a tree structure.
13
14	  The USB host is the root of the tree, the peripherals are the
15	  leaves and the inner nodes are special USB devices called hubs.
16	  Most PCs now have USB host ports, used to connect peripherals
17	  such as scanners, keyboards, mice, modems, cameras, disks,
18	  flash memory, network links, and printers to the PC.
19
20	  Say Y here if your computer has a host-side USB port and you want
21	  to use USB devices.  You then need to say Y to at least one of the
22	  Host Controller Driver (HCD) options below.  Choose a USB 1.1
23	  controller, such as "UHCI HCD support" or "OHCI HCD support",
24	  and "EHCI HCD (USB 2.0) support" except for older systems that
25	  do not have USB 2.0 support.  It doesn't normally hurt to select
26	  them all if you are not certain.
27
28	  If your system has a device-side USB port, used in the peripheral
29	  side of the USB protocol, see the "USB Gadget" framework instead.
30
31	  After choosing your HCD, then select drivers for the USB peripherals
32	  you'll be using.  You may want to check out the information provided
33	  in <file:Documentation/usb/> and especially the links given in
34	  <file:Documentation/usb/usb-help.txt>.
35
36if USB
37
38config DM_USB
39	bool "Enable driver model for USB"
40	depends on USB && DM
41	help
42	  Enable driver model for USB. The USB interface is then implemented
43	  by the USB uclass. Multiple USB controllers of different types
44	  (XHCI, EHCI) can be attached and used. The 'usb' command works as
45	  normal. OCHI is not supported at present.
46
47	  Much of the code is shared but with this option enabled the USB
48	  uclass takes care of device enumeration. USB devices can be
49	  declared with the USB_DEVICE() macro and will be automatically
50	  probed when found on the bus.
51
52source "drivers/usb/host/Kconfig"
53
54source "drivers/usb/emul/Kconfig"
55
56config USB_STORAGE
57	bool "USB Mass Storage support"
58	---help---
59	  Say Y here if you want to connect USB mass storage devices to your
60	  board's USB port.
61
62endif
63