linux: add upstream patch to allow building dwc2 as module on 3.18
Also add the required config symbols to usb.mk Signed-off-by: Jo-Philipp Wich <jow@openwrt.org> SVN-Revision: 44181
This commit is contained in:
Jo-Philipp Wich
@@ -438,6 +438,8 @@ define KernelPackage/usb-dwc2
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DEPENDS:=@!LINUX_3_8 @!LINUX_3_10
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DEPENDS:=@!LINUX_3_8 @!LINUX_3_10
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KCONFIG:= \
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KCONFIG:= \
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CONFIG_USB_DWC2 \
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CONFIG_USB_DWC2 \
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CONFIG_USB_DWC2_PCI \
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CONFIG_USB_DWC2_PLATFORM \
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CONFIG_USB_DWC2_DEBUG=n \
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CONFIG_USB_DWC2_DEBUG=n \
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CONFIG_USB_DWC2_VERBOSE=n \
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CONFIG_USB_DWC2_VERBOSE=n \
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CONFIG_USB_DWC2_TRACK_MISSED_SOFS=n
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CONFIG_USB_DWC2_TRACK_MISSED_SOFS=n
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146
target/linux/generic/patches-3.18/821-usb-dwc2-dualrole.patch
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146
target/linux/generic/patches-3.18/821-usb-dwc2-dualrole.patch
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@@ -0,0 +1,146 @@
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--- a/drivers/usb/dwc2/Kconfig
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+++ b/drivers/usb/dwc2/Kconfig
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@@ -1,6 +1,6 @@
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config USB_DWC2
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- bool "DesignWare USB2 DRD Core Support"
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- depends on USB
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+ tristate "DesignWare USB2 DRD Core Support"
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+ depends on USB || USB_GADGET
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help
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Say Y here if your system has a Dual Role Hi-Speed USB
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controller based on the DesignWare HSOTG IP Core.
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@@ -10,49 +10,61 @@ config USB_DWC2
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bus interface module (if you have a PCI bus system) will be
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called dwc2_pci.ko, and the platform interface module (for
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controllers directly connected to the CPU) will be called
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- dwc2_platform.ko. For gadget mode, there will be a single
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- module called dwc2_gadget.ko.
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-
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- NOTE: The s3c-hsotg driver is now renamed to dwc2_gadget. The
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- host and gadget drivers are still currently separate drivers.
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- There are plans to merge the dwc2_gadget driver with the dwc2
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- host driver in the near future to create a dual-role driver.
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+ dwc2_platform.ko. For all modes(host, gadget and dual-role), there
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+ will be an additional module named dwc2.ko.
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if USB_DWC2
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+choice
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+ bool "DWC2 Mode Selection"
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+ default USB_DWC2_DUAL_ROLE if (USB && USB_GADGET)
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+ default USB_DWC2_HOST if (USB && !USB_GADGET)
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+ default USB_DWC2_PERIPHERAL if (!USB && USB_GADGET)
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+
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config USB_DWC2_HOST
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- tristate "Host only mode"
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+ bool "Host only mode"
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depends on USB
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help
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The Designware USB2.0 high-speed host controller
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- integrated into many SoCs.
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+ integrated into many SoCs. Select this option if you want the
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+ driver to operate in Host-only mode.
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-config USB_DWC2_PLATFORM
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- bool "DWC2 Platform"
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- depends on USB_DWC2_HOST
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- default USB_DWC2_HOST
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+comment "Gadget/Dual-role mode requires USB Gadget support to be enabled"
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+
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+config USB_DWC2_PERIPHERAL
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+ bool "Gadget only mode"
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+ depends on USB_GADGET=y || USB_GADGET=USB_DWC2
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+ help
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+ The Designware USB2.0 high-speed gadget controller
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+ integrated into many SoCs. Select this option if you want the
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+ driver to operate in Peripheral-only mode. This option requires
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+ USB_GADGET to be enabled.
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+
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+config USB_DWC2_DUAL_ROLE
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+ bool "Dual Role mode"
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+ depends on (USB=y || USB=USB_DWC2) && (USB_GADGET=y || USB_GADGET=USB_DWC2)
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help
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- The Designware USB2.0 platform interface module for
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- controllers directly connected to the CPU. This is only
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- used for host mode.
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+ Select this option if you want the driver to work in a dual-role
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+ mode. In this mode both host and gadget features are enabled, and
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+ the role will be determined by the cable that gets plugged-in. This
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+ option requires USB_GADGET to be enabled.
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+endchoice
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+
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+config USB_DWC2_PLATFORM
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+ tristate "DWC2 Platform"
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+ default USB_DWC2_HOST || USB_DWC2_PERIPHERAL
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+ help
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+ The Designware USB2.0 platform interface module for
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+ controllers directly connected to the CPU.
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config USB_DWC2_PCI
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- bool "DWC2 PCI"
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+ tristate "DWC2 PCI"
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depends on USB_DWC2_HOST && PCI
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default USB_DWC2_HOST
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help
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The Designware USB2.0 PCI interface module for controllers
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connected to a PCI bus. This is only used for host mode.
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-comment "Gadget mode requires USB Gadget support to be enabled"
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-
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-config USB_DWC2_PERIPHERAL
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- tristate "Gadget only mode"
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- depends on USB_GADGET
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- help
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- The Designware USB2.0 high-speed gadget controller
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- integrated into many SoCs.
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-
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config USB_DWC2_DEBUG
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bool "Enable Debugging Messages"
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help
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--- a/drivers/usb/dwc2/Makefile
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+++ b/drivers/usb/dwc2/Makefile
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@@ -1,28 +1,28 @@
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ccflags-$(CONFIG_USB_DWC2_DEBUG) += -DDEBUG
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ccflags-$(CONFIG_USB_DWC2_VERBOSE) += -DVERBOSE_DEBUG
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-obj-$(CONFIG_USB_DWC2_HOST) += dwc2.o
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+obj-$(CONFIG_USB_DWC2) += dwc2.o
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dwc2-y := core.o core_intr.o
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-dwc2-y += hcd.o hcd_intr.o
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-dwc2-y += hcd_queue.o hcd_ddma.o
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+
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+ifneq ($(filter y,$(CONFIG_USB_DWC2_HOST) $(CONFIG_USB_DWC2_DUAL_ROLE)),)
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+ dwc2-y += hcd.o hcd_intr.o
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+ dwc2-y += hcd_queue.o hcd_ddma.o
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+endif
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+
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+ifneq ($(filter y,$(CONFIG_USB_DWC2_PERIPHERAL) $(CONFIG_USB_DWC2_DUAL_ROLE)),)
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+ dwc2-y += gadget.o
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+endif
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# NOTE: The previous s3c-hsotg peripheral mode only driver has been moved to
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# this location and renamed gadget.c. When building for dynamically linked
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-# modules, dwc2_gadget.ko will get built for peripheral mode. For host mode,
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-# the core module will be dwc2.ko, the PCI bus interface module will called
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-# dwc2_pci.ko and the platform interface module will be called dwc2_platform.ko.
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-# At present the host and gadget driver will be separate drivers, but there
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-# are plans in the near future to create a dual-role driver.
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+# modules, dwc2.ko will get built for host mode, peripheral mode, and dual-role
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+# mode. The PCI bus interface module will called dwc2_pci.ko and the platform
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+# interface module will be called dwc2_platform.ko.
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ifneq ($(CONFIG_USB_DWC2_PCI),)
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- obj-$(CONFIG_USB_DWC2_HOST) += dwc2_pci.o
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+ obj-$(CONFIG_USB_DWC2) += dwc2_pci.o
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dwc2_pci-y := pci.o
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endif
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-ifneq ($(CONFIG_USB_DWC2_PLATFORM),)
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- obj-$(CONFIG_USB_DWC2_HOST) += dwc2_platform.o
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- dwc2_platform-y := platform.o
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-endif
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-
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-obj-$(CONFIG_USB_DWC2_PERIPHERAL) += dwc2_gadget.o
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-dwc2_gadget-y := gadget.o
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+obj-$(CONFIG_USB_DWC2_PLATFORM) += dwc2_platform.o
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+dwc2_platform-y := platform.o
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