1# SPDX-License-Identifier: GPL-2.0
 2
 3config 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
21if USB_DWC2
22
23choice
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
29config 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
37comment "Gadget/Dual-role mode requires USB Gadget support to be enabled"
38
39config 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
48config 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.
56endchoice
57
58config 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
67config USB_DWC2_DEBUG
68	bool "Enable Debugging Messages"
69	help
70	  Say Y here to enable debugging messages in the DWC2 Driver.
71
72config 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
80config 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
87config 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.
97endif