1 # SPDX-License-Identifier: GPL-2.0 2 3 config USB_DWC2 4 tristate "DesignWare USB2 DRD Core Support" 5 depends on HAS_DMA 6 depends on USB || USB_GADGET 7 depends on HAS_IOMEM 8 select USB_ROLE_SWITCH 9 help 10 Say Y here if your system has a Dual Role Hi-Speed USB 11 controller based on the DesignWare HSOTG IP Core. 12 13 For host mode, if you choose to build the driver as dynamically 14 linked modules, the core module will be called dwc2.ko, the PCI 15 bus interface module (if you have a PCI bus system) will be 16 called dwc2_pci.ko, and the platform interface module (for 17 controllers directly connected to the CPU) will be called 18 dwc2_platform.ko. For all modes(host, gadget and dual-role), there 19 will be an additional module named dwc2.ko. 20 21 if USB_DWC2 22 23 choice 24 bool "DWC2 Mode Selection" 25 default USB_DWC2_DUAL_ROLE if (USB && USB_GADGET) 26 default USB_DWC2_HOST if (USB && !USB_GADGET) 27 default USB_DWC2_PERIPHERAL if (!USB && USB_GADGET) 28 29 config USB_DWC2_HOST 30 bool "Host only mode" 31 depends on USB=y || (USB_DWC2=m && USB) 32 help 33 The Designware USB2.0 high-speed host controller 34 integrated into many SoCs. Select this option if you want the 35 driver to operate in Host-only mode. 36 37 comment "Gadget/Dual-role mode requires USB Gadget support to be enabled" 38 39 config USB_DWC2_PERIPHERAL 40 bool "Gadget only mode" 41 depends on USB_GADGET=y || USB_GADGET=USB_DWC2 42 help 43 The Designware USB2.0 high-speed gadget controller 44 integrated into many SoCs. Select this option if you want the 45 driver to operate in Peripheral-only mode. This option requires 46 USB_GADGET to be enabled. 47 48 config USB_DWC2_DUAL_ROLE 49 bool "Dual Role mode" 50 depends on (USB=y && USB_GADGET=y) || (USB_DWC2=m && USB && USB_GADGET) 51 help 52 Select this option if you want the driver to work in a dual-role 53 mode. In this mode both host and gadget features are enabled, and 54 the role will be determined by the cable that gets plugged-in. This 55 option requires USB_GADGET to be enabled. 56 endchoice 57 58 config USB_DWC2_PCI 59 tristate "DWC2 PCI" 60 depends on USB_PCI 61 depends on USB_GADGET || !USB_GADGET 62 select NOP_USB_XCEIV 63 help 64 The Designware USB2.0 PCI interface module for controllers 65 connected to a PCI bus. 66 67 config USB_DWC2_DEBUG 68 bool "Enable Debugging Messages" 69 help 70 Say Y here to enable debugging messages in the DWC2 Driver. 71 72 config USB_DWC2_VERBOSE 73 bool "Enable Verbose Debugging Messages" 74 depends on USB_DWC2_DEBUG 75 help 76 Say Y here to enable verbose debugging messages in the DWC2 Driver. 77 WARNING: Enabling this will quickly fill your message log. 78 If in doubt, say N. 79 80 config USB_DWC2_TRACK_MISSED_SOFS 81 bool "Enable Missed SOF Tracking" 82 help 83 Say Y here to enable logging of missed SOF events to the dmesg log. 84 WARNING: This feature is still experimental. 85 If in doubt, say N. 86 87 config USB_DWC2_DEBUG_PERIODIC 88 bool "Enable Debugging Messages For Periodic Transfers" 89 depends on USB_DWC2_DEBUG || USB_DWC2_VERBOSE 90 default y 91 help 92 Say N here to disable (verbose) debugging messages to be 93 logged for periodic transfers. This allows better debugging of 94 non-periodic transfers, but of course the debug logs will be 95 incomplete. Note that this also disables some debug messages 96 for which the transfer type cannot be deduced. 97 endif 98