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usb: dwc2: Update Kconfig to support dual-role

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Update DWC2 kconfig and makefile to support dual-role mode. The platform
file will always get compiled for the case where the controller is directly
connected to the CPU. So for loadable modules, dwc2.ko is built for host,
peripheral, and dual-role mode. The PCI bus interface will be called
dwc2_pci.ko and the platform interface module will be called dwc2_platform.ko.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Dinh Nguyen 2014-11-11 11:13:40 -06:00 committed by Felipe Balbi
parent f5500ecc90
commit 5ee80705a5
2 changed files with 55 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
drivers/usb/dwc2/Kconfig
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@ -1,5 +1,5 @@
config USB_DWC2
bool "DesignWare USB2 DRD Core Support"
tristate "DesignWare USB2 DRD Core Support"
depends on USB || USB_GADGET
help
Say Y here if your system has a Dual Role Hi-Speed USB
@ -10,49 +10,61 @@ config USB_DWC2
bus interface module (if you have a PCI bus system) will be
called dwc2_pci.ko, and the platform interface module (for
controllers directly connected to the CPU) will be called
dwc2_platform.ko. For gadget mode, there will be a single
module called dwc2_gadget.ko.
NOTE: The s3c-hsotg driver is now renamed to dwc2_gadget. The
host and gadget drivers are still currently separate drivers.
There are plans to merge the dwc2_gadget driver with the dwc2
host driver in the near future to create a dual-role driver.
dwc2_platform.ko. For all modes(host, gadget and dual-role), there
will be an additional module named dwc2.ko.
if USB_DWC2
choice
bool "DWC2 Mode Selection"
default USB_DWC2_DUAL_ROLE if (USB && USB_GADGET)
default USB_DWC2_HOST if (USB && !USB_GADGET)
default USB_DWC2_PERIPHERAL if (!USB && USB_GADGET)
config USB_DWC2_HOST
tristate "Host only mode"
bool "Host only mode"
depends on USB
help
The Designware USB2.0 high-speed host controller
integrated into many SoCs.
integrated into many SoCs. Select this option if you want the
driver to operate in Host-only mode.
comment "Gadget/Dual-role mode requires USB Gadget support to be enabled"
config USB_DWC2_PERIPHERAL
bool "Gadget only mode"
depends on USB_GADGET=y || USB_GADGET=USB_DWC2
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-only mode. This option requires
USB_GADGET to be enabled.
config USB_DWC2_DUAL_ROLE
bool "Dual Role mode"
depends on (USB=y || USB=USB_DWC2) && (USB_GADGET=y || USB_GADGET=USB_DWC2)
help
Select this option if you want the driver to work in a dual-role
mode. In this mode both host and gadget features are enabled, and
the role will be determined by the cable that gets plugged-in. This
option requires USB_GADGET to be enabled.
endchoice
config USB_DWC2_PLATFORM
bool "DWC2 Platform"
depends on USB_DWC2_HOST
default USB_DWC2_HOST
help
The Designware USB2.0 platform interface module for
controllers directly connected to the CPU. This is only
used for host mode.
tristate "DWC2 Platform"
default USB_DWC2_HOST || USB_DWC2_PERIPHERAL
help
The Designware USB2.0 platform interface module for
controllers directly connected to the CPU.
config USB_DWC2_PCI
bool "DWC2 PCI"
tristate "DWC2 PCI"
depends on USB_DWC2_HOST && PCI
default USB_DWC2_HOST
help
The Designware USB2.0 PCI interface module for controllers
connected to a PCI bus. This is only used for host mode.
comment "Gadget mode requires USB Gadget support to be enabled"
config USB_DWC2_PERIPHERAL
tristate "Gadget only mode"
depends on USB_GADGET
help
The Designware USB2.0 high-speed gadget controller
integrated into many SoCs.
config USB_DWC2_DEBUG
bool "Enable Debugging Messages"
help

32
drivers/usb/dwc2/Makefile
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@ -1,28 +1,28 @@
ccflags-$(CONFIG_USB_DWC2_DEBUG) += -DDEBUG
ccflags-$(CONFIG_USB_DWC2_VERBOSE) += -DVERBOSE_DEBUG
obj-$(CONFIG_USB_DWC2_HOST) += dwc2.o
obj-$(CONFIG_USB_DWC2) += dwc2.o
dwc2-y := core.o core_intr.o
dwc2-y += hcd.o hcd_intr.o
dwc2-y += hcd_queue.o hcd_ddma.o
ifneq ($(filter y,$(CONFIG_USB_DWC2_HOST) $(CONFIG_USB_DWC2_DUAL_ROLE)),)
dwc2-y += hcd.o hcd_intr.o
dwc2-y += hcd_queue.o hcd_ddma.o
endif
ifneq ($(filter y,$(CONFIG_USB_DWC2_PERIPHERAL) $(CONFIG_USB_DWC2_DUAL_ROLE)),)
dwc2-y += gadget.o
endif
# NOTE: The previous s3c-hsotg peripheral mode only driver has been moved to
# this location and renamed gadget.c. When building for dynamically linked
# modules, dwc2_gadget.ko will get built for peripheral mode. For host mode,
# the core module will be dwc2.ko, the PCI bus interface module will called
# dwc2_pci.ko and the platform interface module will be called dwc2_platform.ko.
# At present the host and gadget driver will be separate drivers, but there
# are plans in the near future to create a dual-role driver.
# modules, dwc2.ko will get built for host mode, peripheral mode, and dual-role
# mode. The PCI bus interface module will called dwc2_pci.ko and the platform
# interface module will be called dwc2_platform.ko.
ifneq ($(CONFIG_USB_DWC2_PCI),)
obj-$(CONFIG_USB_DWC2_HOST) += dwc2_pci.o
obj-$(CONFIG_USB_DWC2) += dwc2_pci.o
dwc2_pci-y := pci.o
endif
ifneq ($(CONFIG_USB_DWC2_PLATFORM),)
obj-$(CONFIG_USB_DWC2_HOST) += dwc2_platform.o
dwc2_platform-y := platform.o
endif
obj-$(CONFIG_USB_DWC2_PERIPHERAL) += dwc2_gadget.o
dwc2_gadget-y := gadget.o
obj-$(CONFIG_USB_DWC2_PLATFORM) += dwc2_platform.o
dwc2_platform-y := platform.o