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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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In Linux, the DWC3 core exists as its own independent platform device. Thus when describing relationships in Device Tree, the current default boot configuration table option, the DWC3 core often resides as a child of the platform specific node. Both of which are given their own address space descriptions and the drivers can be mostly agnostic to each other. However, other Operating Systems have taken a more monolithic approach, which is evident in the configuration ACPI tables for the Qualcomm Snapdragon SDM850, where all DWC3 (core and platform) components are described under a single IO memory region. To ensure successful booting using the supplied ACPI tables, we need to devise a way to chop up the address regions provided and subsequently register the DWC3 core with the resultant information, which is precisely what this patch aims to achieve. Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
141 lines
4.1 KiB
Plaintext
141 lines
4.1 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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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 ARCH_OMAP2PLUS || COMPILE_TEST
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depends on EXTCON || !EXTCON
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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 (but not HAPS
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platform), please say 'Y' or 'M' here.
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config USB_DWC3_HAPS
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tristate "Synopsys PCIe-based HAPS Platforms"
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depends on USB_PCI
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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 Synopsys PCIe HAPS
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platform, please say 'Y' or 'M' here.
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config USB_DWC3_KEYSTONE
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tristate "Texas Instruments Keystone2/AM654 Platforms"
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depends on ARCH_KEYSTONE || ARCH_K3 || 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 and AM654 platforms.
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Say 'Y' or 'M' here if you have one such device
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config USB_DWC3_MESON_G12A
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tristate "Amlogic Meson G12A Platforms"
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depends on OF && COMMON_CLK
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depends on ARCH_MESON || COMPILE_TEST
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default USB_DWC3
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select USB_ROLE_SWITCH
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help
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Support USB2/3 functionality in Amlogic G12A platforms.
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Say 'Y' or 'M' 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 EXTCON || !EXTCON
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depends on (OF || ACPI)
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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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