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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>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44181 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Jo-Philipp Wich 2015-01-28 13:45:06 +00:00
parent 120fdaa996
commit 7558535a9e
2 changed files with 148 additions and 0 deletions
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2
package/kernel/linux/modules/usb.mk
View File

@ -438,6 +438,8 @@ define KernelPackage/usb-dwc2
DEPENDS:=@!LINUX_3_8 @!LINUX_3_10
KCONFIG:= \
CONFIG_USB_DWC2 \
CONFIG_USB_DWC2_PCI \
CONFIG_USB_DWC2_PLATFORM \
CONFIG_USB_DWC2_DEBUG=n \
CONFIG_USB_DWC2_VERBOSE=n \
CONFIG_USB_DWC2_TRACK_MISSED_SOFS=n

146
target/linux/generic/patches-3.18/821-usb-dwc2-dualrole.patch Normal file
View File

@ -0,0 +1,146 @@
--- a/drivers/usb/dwc2/Kconfig
+++ b/drivers/usb/dwc2/Kconfig
@@ -1,6 +1,6 @@
config USB_DWC2
- bool "DesignWare USB2 DRD Core Support"
- depends on USB
+ 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
controller based on the DesignWare HSOTG IP Core.
@@ -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.
-config USB_DWC2_PLATFORM
- bool "DWC2 Platform"
- depends on USB_DWC2_HOST
- default USB_DWC2_HOST
+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
- The Designware USB2.0 platform interface module for
- controllers directly connected to the CPU. This is only
- used for host mode.
+ 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
+ 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
--- a/drivers/usb/dwc2/Makefile
+++ b/drivers/usb/dwc2/Makefile
@@ -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