# # USB Gadget support on a system involves # (a) a peripheral controller, and # (b) the gadget driver using it. # # NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !! # # - Host systems (like PCs) need CONFIG_USB (with "A" jacks). # - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks). # - Some systems have both kinds of controllers. # # With help from a special transceiver and a "Mini-AB" jack, systems with # both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG). # menuconfig USB_GADGET bool "USB Gadget Support" depends on DM select DM_USB help USB is a master/slave protocol, organized with one master host (such as a PC) controlling up to 127 peripheral devices. The USB hardware is asymmetric, which makes it easier to set up: you can't connect a "to-the-host" connector to a peripheral. U-Boot can run in the host, or in the peripheral. In both cases you need a low level bus controller driver, and some software talking to it. Peripheral controllers are often discrete silicon, or are integrated with the CPU in a microcontroller. The more familiar host side controllers have names like "EHCI", "OHCI", or "UHCI", and are usually integrated into southbridges on PC motherboards. Enable this configuration option if you want to run U-Boot inside a USB peripheral device. Configure one hardware driver for your peripheral/device side bus controller, and a "gadget driver" for your peripheral protocol. config SPL_USB_GADGET bool "USB Gadget Support in SPL" help Enable USB Gadget API which allows to enable USB device functions in SPL. if USB_GADGET config USB_GADGET_MANUFACTURER string "Vendor name of the USB device" default "NVIDIA" if ARCH_TEGRA default "Allwinner Technology" if ARCH_SUNXI default "Rockchip" if ARCH_ROCKCHIP default "U-Boot" help Vendor name of the USB device emulated, reported to the host device. This is usually either the manufacturer of the device or the SoC. config USB_GADGET_VENDOR_NUM hex "Vendor ID of the USB device" default 0x0955 if ARCH_TEGRA default 0x1f3a if ARCH_SUNXI default 0x2207 if ARCH_ROCKCHIP default 0x0 help Vendor ID of the USB device emulated, reported to the host device. This is usually the board or SoC vendor's, unless you've registered for one. config USB_GADGET_PRODUCT_NUM hex "Product ID of the USB device" default 0x701a if ARCH_TEGRA default 0x1010 if ARCH_SUNXI default 0x310a if ROCKCHIP_RK3036 default 0x300a if ROCKCHIP_RK3066 default 0x310c if ROCKCHIP_RK3128 default 0x320a if ROCKCHIP_RK3229 || ROCKCHIP_RK3288 default 0x330a if ROCKCHIP_RK3328 default 0x330c if ROCKCHIP_RK3399 default 0x0 help Product ID of the USB device emulated, reported to the host device. config USB_GADGET_ATMEL_USBA bool "Atmel USBA" select USB_GADGET_DUALSPEED help USBA is the integrated high-speed USB Device controller on the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel. config USB_GADGET_BCM_UDC_OTG_PHY bool "Broadcom UDC OTG PHY" help Enable the Broadcom UDC OTG physical device interface. config USB_GADGET_AT91 bool "Atmel AT91 USB Gadget Controller" depends on ARCH_AT91 config USB_GADGET_DWC2_OTG bool "DesignWare USB2.0 HS OTG controller (gadget mode)" select USB_GADGET_DUALSPEED help The Designware USB2.0 high-speed gadget controller integrated into many SoCs. Select this option if you want the driver to operate in Peripheral mode. This option requires USB_GADGET to be enabled. if USB_GADGET_DWC2_OTG config USB_GADGET_DWC2_OTG_PHY bool "DesignWare USB2.0 HS OTG PHY" help Enable the DesignWare USB2.0 HS OTG physical device interface. config USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8 bool "DesignWare USB2.0 HS OTG controller 8-bit PHY bus width" help Set the Designware USB2.0 high-speed OTG controller PHY interface width to 8 bits, rather than the default (16 bits). endif # USB_GADGET_DWC2_OTG config USB_GADGET_OS_DESCRIPTORS bool "USB OS Feature Descriptors support" help This is a porting patch from linux kernel: 37a3a533429e ("usb: gadget: OS Feature Descriptors support"), the original commit log see below: There is a custom (non-USB IF) extension to the USB standard: http://msdn.microsoft.com/library/windows/hardware/gg463182 config CI_UDC bool "ChipIdea device controller" select USB_GADGET_DUALSPEED help Say Y here to enable device controller functionality of the ChipIdea driver. config USB_GADGET_MAX3420 bool "MAX3420 USB Over SPI" depends on DM_SPI help MAX3420, from MAXIM, implements USB-over-SPI Full-Speed device controller. config USB_GADGET_VBUS_DRAW int "Maximum VBUS Power usage (2-500 mA)" range 2 500 default 2 help Some devices need to draw power from USB when they are configured, perhaps to operate circuitry or to recharge batteries. This is in addition to any local power supply, such as an AC adapter or batteries. Enter the maximum power your device draws through USB, in milliAmperes. The permitted range of values is 2 - 500 mA; 0 mA would be legal, but can make some hosts misbehave. This value will be used except for system-specific gadget drivers that have more specific information. config SDP_LOADADDR hex "Default load address at SDP_WRITE and SDP_JUMP" default 0x0 # Selected by UDC drivers that support high-speed operation. config USB_GADGET_DUALSPEED bool config USB_GADGET_DOWNLOAD bool "Enable USB download gadget" help Composite USB download gadget support (g_dnl) for download functions. This code works on top of composite gadget. if USB_GADGET_DOWNLOAD config USB_FUNCTION_MASS_STORAGE bool "Enable USB mass storage gadget" help Enable mass storage protocol support in U-Boot. It allows exporting the eMMC/SD card content to HOST PC so it can be mounted. config USB_FUNCTION_ROCKUSB bool "Enable USB rockusb gadget" help Rockusb protocol is widely used by Rockchip SoC based devices. It can read/write info, image to/from devices. This enables the USB part of the rockusb gadget.for more detail about Rockusb protocol, please see doc/README.rockusb config USB_FUNCTION_SDP bool "Enable USB SDP (Serial Download Protocol)" help Enable Serial Download Protocol (SDP) device support in U-Boot. This allows to download images into memory and execute (jump to) them using the same protocol as implemented by the i.MX family's boot ROM. config USB_FUNCTION_THOR bool "Enable USB THOR gadget" help Enable Tizen's THOR download protocol support in U-Boot. It allows downloading images into memory and flash them to target device. config USB_FUNCTION_ACM bool "Enable CDC ACM gadget" select SYS_STDIO_DEREGISTER select CIRCBUF help ACM serial link. This function can be used to create a stdio device to interoperate with MS-Windows hosts or with the Linux-USB "cdc-acm" driver. endif # USB_GADGET_DOWNLOAD config USB_ETHER bool "USB Ethernet Gadget" depends on NET default y if ARCH_SUNXI && USB_MUSB_GADGET help Creates an Ethernet network device through a USB peripheral controller. This will create a network interface on both the device (U-Boot) and the host (remote device) that can be used just like any other nework interface. It will bind on the peripheral USB controller, ignoring the USB hosts controllers in the system. if USB_ETHER choice prompt "USB Ethernet Gadget Model" default USB_ETH_RNDIS help There is several models (protocols) to implement Ethernet over USB devices. The main ones are Microsoft's RNDIS and USB's CDC-Ethernet (also called CDC-ECM). RNDIS is obviously compatible with Windows, while CDC-ECM is not. Most other operating systems support both, so if inter-operability is a concern, RNDIS is to be preferred. config USB_ETH_CDC bool "CDC-ECM Protocol" help CDC (Communications Device Class) is the standard for Ethernet over USB devices. While there's several alternatives, the most widely used protocol is ECM (Ethernet Control Model). However, compatibility with Windows is not that great. config USB_ETH_RNDIS bool "RNDIS Protocol" help The RNDIS (Remote Network Driver Interface Specification) is a Microsoft proprietary protocol to create an Ethernet device over USB. Windows obviously supports it, as well as all the major operating systems, so it's the best option for compatibility. endchoice config USBNET_DEV_ADDR string "USB Gadget Ethernet device mac address" default "de:ad:be:ef:00:01" help Ethernet MAC address of the device-side (ie. local board's) MAC address of the usb_ether interface config USBNET_HOST_ADDR string "USB Gadget Ethernet host mac address" default "de:ad:be:ef:00:00" help Ethernet MAC address of the host-side (ie. remote device's) MAC address of the usb_ether interface endif # USB_ETHER endif # USB_GADGET if SPL_USB_GADGET config SPL_USB_ETHER bool "Support USB Ethernet drivers in SPL" depends on SPL_NET help Enable access to the USB network subsystem and associated drivers in SPL. This permits SPL to load U-Boot over a USB-connected Ethernet link (such as a USB Ethernet dongle) rather than from an onboard peripheral. Environment support is required since the network stack uses a number of environment variables. See also SPL_NET and SPL_ETH. if SPL_USB_ETHER choice prompt "USB Ethernet Gadget Model in SPL" default SPL_USB_ETH_RNDIS help There is several models (protocols) to implement Ethernet over USB devices. The main ones are Microsoft's RNDIS and USB's CDC-Ethernet (also called CDC-ECM). RNDIS is obviously compatible with Windows, while CDC-ECM is not. Most other operating systems support both, so if inter-operability is a concern, RNDIS is to be preferred. config SPL_USB_ETH_RNDIS bool "RNDIS Protocol" help The RNDIS (Remote Network Driver Interface Specification) is a Microsoft proprietary protocol to create an Ethernet device over USB. Windows obviously supports it, as well as all the major operating systems, so it's the best option for compatibility. endchoice endif # SPL_USB_ETHER config SPL_DFU bool "Support DFU (Device Firmware Upgrade) in SPL" select SPL_HASH select SPL_DFU_NO_RESET depends on SPL_RAM_SUPPORT help This feature enables the DFU (Device Firmware Upgrade) in SPL with RAM memory device support. The ROM code will load and execute the SPL built with dfu. The user can load binaries (u-boot/kernel) to selected device partition from host-pc using dfu-utils. This feature is useful to flash the binaries to factory or bare-metal boards using USB interface. choice bool "DFU device selection in SPL" depends on SPL_DFU config SPL_DFU_RAM bool "RAM device" depends on SPL_DFU && SPL_RAM_SUPPORT help select RAM/DDR memory device for loading binary images (u-boot/kernel) to the selected device partition using DFU and execute the u-boot/kernel from RAM. endchoice config SPL_USB_SDP_SUPPORT bool "Support SDP (Serial Download Protocol) in SPL" depends on SPL_SERIAL help Enable Serial Download Protocol (SDP) device support in SPL. This allows to download images into memory and execute (jump to) them using the same protocol as implemented by the i.MX family's boot ROM. config SPL_SDP_USB_DEV int "SDP USB controller index in SPL" default 0 depends on SPL_USB_SDP_SUPPORT help Some boards have USB controller other than 0. Define this option so it can be used in compiled environment. endif # SPL_USB_GADGET