2 # USB Gadget support on a system involves
3 # (a) a peripheral controller, and
4 # (b) the gadget driver using it.
6 # NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !!
8 # - Host systems (like PCs) need CONFIG_USB (with "A" jacks).
9 # - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks).
10 # - Some systems have both kinds of controllers.
12 # With help from a special transceiver and a "Mini-AB" jack, systems with
13 # both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
17 bool "USB Gadget Support"
19 USB is a master/slave protocol, organized with one master
20 host (such as a PC) controlling up to 127 peripheral devices.
21 The USB hardware is asymmetric, which makes it easier to set up:
22 you can't connect a "to-the-host" connector to a peripheral.
24 U-Boot can run in the host, or in the peripheral. In both cases
25 you need a low level bus controller driver, and some software
26 talking to it. Peripheral controllers are often discrete silicon,
27 or are integrated with the CPU in a microcontroller. The more
28 familiar host side controllers have names like "EHCI", "OHCI",
29 or "UHCI", and are usually integrated into southbridges on PC
32 Enable this configuration option if you want to run U-Boot inside
33 a USB peripheral device. Configure one hardware driver for your
34 peripheral/device side bus controller, and a "gadget driver" for
35 your peripheral protocol.
39 config USB_GADGET_ATMEL_USBA
41 select USB_GADGET_DUALSPEED
43 USBA is the integrated high-speed USB Device controller on
44 the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel.
46 config USB_GADGET_DWC2_OTG
47 bool "DesignWare USB2.0 HS OTG controller (gadget mode)"
48 select USB_GADGET_DUALSPEED
50 The Designware USB2.0 high-speed gadget controller
51 integrated into many SoCs. Select this option if you want the
52 driver to operate in Peripheral mode. This option requires
53 USB_GADGET to be enabled.
56 bool "ChipIdea device controller"
57 select USB_GADGET_DUALSPEED
59 Say Y here to enable device controller functionality of the
62 config USB_GADGET_VBUS_DRAW
63 int "Maximum VBUS Power usage (2-500 mA)"
67 Some devices need to draw power from USB when they are
68 configured, perhaps to operate circuitry or to recharge
69 batteries. This is in addition to any local power supply,
70 such as an AC adapter or batteries.
72 Enter the maximum power your device draws through USB, in
73 milliAmperes. The permitted range of values is 2 - 500 mA;
74 0 mA would be legal, but can make some hosts misbehave.
76 This value will be used except for system-specific gadget
77 drivers that have more specific information.
79 # Selected by UDC drivers that support high-speed operation.
80 config USB_GADGET_DUALSPEED
83 config USB_GADGET_DOWNLOAD
84 bool "Enable USB download gadget"
86 Composite USB download gadget support (g_dnl) for download functions.
87 This code works on top of composite gadget.
89 if USB_GADGET_DOWNLOAD
91 config G_DNL_MANUFACTURER
92 string "Vendor name of USB device"
94 config G_DNL_VENDOR_NUM
95 hex "Vendor ID of USB device"
97 config G_DNL_PRODUCT_NUM
98 hex "Product ID of USB device"
100 endif # USB_GADGET_DOWNLOAD