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a4333c3a6b
DWC3 controller on Qualcomm SOCs has a Qscratch wrapper. Some of its uses are described below resulting in need to have a separate glue driver instead of using dwc3-of-simple: - It exposes register interface to override vbus-override and lane0-pwr-present signals going to hardware. These must be updated in peripheral mode for DWC3 if vbus lines are not connected to hardware block. Otherwise RX termination in SS mode or DP pull-up is not applied by device controller. - pwr_events_irq_stat support to check if USB2 PHY is in L2 state before glue driver proceeds with suspend. - Support for wakeup interrupts lines that are asserted whenever there is any wakeup event on USB3 or USB2 bus. - Support to replace pip3 clock going to DWC3 with utmi clock for hardware configuration where SSPHY is not used with DWC3. Signed-off-by: Manu Gautam <mgautam@codeaurora.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
121 lines
3.5 KiB
Text
121 lines
3.5 KiB
Text
config USB_DWC3
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tristate "DesignWare USB3 DRD Core Support"
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depends on (USB || USB_GADGET) && HAS_DMA
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select USB_XHCI_PLATFORM if USB_XHCI_HCD
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help
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Say Y or M here if your system has a Dual Role SuperSpeed
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USB controller based on the DesignWare USB3 IP Core.
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If you choose to build this driver is a dynamically linked
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module, the module will be called dwc3.ko.
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if USB_DWC3
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config USB_DWC3_ULPI
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bool "Register ULPI PHY Interface"
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depends on USB_ULPI_BUS=y || USB_ULPI_BUS=USB_DWC3
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help
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Select this if you have ULPI type PHY attached to your DWC3
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controller.
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choice
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bool "DWC3 Mode Selection"
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default USB_DWC3_DUAL_ROLE if (USB && USB_GADGET)
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default USB_DWC3_HOST if (USB && !USB_GADGET)
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default USB_DWC3_GADGET if (!USB && USB_GADGET)
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config USB_DWC3_HOST
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bool "Host only mode"
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depends on USB=y || USB=USB_DWC3
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help
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Select this when you want to use DWC3 in host mode only,
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thereby the gadget feature will be regressed.
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config USB_DWC3_GADGET
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bool "Gadget only mode"
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depends on USB_GADGET=y || USB_GADGET=USB_DWC3
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help
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Select this when you want to use DWC3 in gadget mode only,
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thereby the host feature will be regressed.
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config USB_DWC3_DUAL_ROLE
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bool "Dual Role mode"
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depends on ((USB=y || USB=USB_DWC3) && (USB_GADGET=y || USB_GADGET=USB_DWC3))
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depends on (EXTCON=y || EXTCON=USB_DWC3)
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help
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This is the default mode of working of DWC3 controller where
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both host and gadget features are enabled.
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endchoice
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comment "Platform Glue Driver Support"
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config USB_DWC3_OMAP
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tristate "Texas Instruments OMAP5 and similar Platforms"
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depends on EXTCON && (ARCH_OMAP2PLUS || COMPILE_TEST)
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depends on OF
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default USB_DWC3
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help
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Some platforms from Texas Instruments like OMAP5, DRA7xxx and
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AM437x use this IP for USB2/3 functionality.
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Say 'Y' or 'M' here if you have one such device
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config USB_DWC3_EXYNOS
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tristate "Samsung Exynos Platform"
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depends on (ARCH_EXYNOS || COMPILE_TEST) && OF
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default USB_DWC3
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help
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Recent Exynos5 SoCs ship with one DesignWare Core USB3 IP inside,
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say 'Y' or 'M' if you have one such device.
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config USB_DWC3_PCI
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tristate "PCIe-based Platforms"
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depends on USB_PCI && ACPI
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default USB_DWC3
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help
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If you're using the DesignWare Core IP with a PCIe, please say
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'Y' or 'M' here.
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One such PCIe-based platform is Synopsys' PCIe HAPS model of
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this IP.
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config USB_DWC3_KEYSTONE
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tristate "Texas Instruments Keystone2 Platforms"
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depends on ARCH_KEYSTONE || COMPILE_TEST
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default USB_DWC3
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help
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Support of USB2/3 functionality in TI Keystone2 platforms.
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Say 'Y' or 'M' here if you have one such device
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config USB_DWC3_OF_SIMPLE
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tristate "Generic OF Simple Glue Layer"
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depends on OF && COMMON_CLK
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default USB_DWC3
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help
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Support USB2/3 functionality in simple SoC integrations.
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Currently supports Xilinx and Qualcomm DWC USB3 IP.
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Say 'Y' or 'M' if you have one such device.
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config USB_DWC3_ST
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tristate "STMicroelectronics Platforms"
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depends on (ARCH_STI || COMPILE_TEST) && OF
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default USB_DWC3
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help
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STMicroelectronics SoCs with one DesignWare Core USB3 IP
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inside (i.e. STiH407).
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Say 'Y' or 'M' if you have one such device.
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config USB_DWC3_QCOM
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tristate "Qualcomm Platform"
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depends on ARCH_QCOM || COMPILE_TEST
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depends on OF
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default USB_DWC3
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help
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Some Qualcomm SoCs use DesignWare Core IP for USB2/3
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functionality.
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This driver also handles Qscratch wrapper which is needed
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for peripheral mode support.
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Say 'Y' or 'M' if you have one such device.
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endif
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