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https://github.com/AsahiLinux/u-boot
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2b58e1b76d
The meaning of CONFIG_USB in U-Boot is different from that in Linux. As you see in drivers/usb/Kconfig of Linux, CONFIG_USB enables the USB host controller support, while CONFIG_USB_SUPPORT is used to enable the whole of the USB sub-system. When I added CONFIG_USB into Kconfig by commit6e7e9294d3("usb: add basic USB configs in Kconfig"), I planned to follow the Linux's convention, i.e. CONFIG_USB to enable/disable the USB host support. Then, commit68f7c5db2d("usb: Generic USB Kconfig option, that fits both host and gadget and comments") changed the logic of the CONFIG_USB to point to the whole of the USB sub-system. As a result, currently we do not have an option for USB host. This commit adds CONFIG_USB_HOST, which will be useful to compile in the USB host support code. CONFIG_USB_HOST is not referenced at all, but strangely some boards define it in board headers. I removed them because USB_HOST will be selected in Kconfig going forward. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
158 lines
4.6 KiB
Text
158 lines
4.6 KiB
Text
#
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# USB Host Controller Drivers
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#
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comment "USB Host Controller Drivers"
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config USB_HOST
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bool
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config USB_XHCI_HCD
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bool "xHCI HCD (USB 3.0) support"
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select USB_HOST
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---help---
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The eXtensible Host Controller Interface (xHCI) is standard for USB 3.0
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"SuperSpeed" host controller hardware.
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if USB_XHCI_HCD
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config USB_XHCI_UNIPHIER
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bool "Support for UniPhier on-chip xHCI USB controller"
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depends on ARCH_UNIPHIER
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default y
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---help---
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Enables support for the on-chip xHCI controller on UniPhier SoCs.
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config USB_XHCI_DWC3
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bool "DesignWare USB3 DRD Core Support"
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help
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Say Y or 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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endif # USB_XHCI_HCD
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config USB_EHCI_HCD
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bool "EHCI HCD (USB 2.0) support"
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select USB_HOST
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---help---
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The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0
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"high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware.
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If your USB host controller supports USB 2.0, you will likely want to
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configure this Host Controller Driver.
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EHCI controllers are packaged with "companion" host controllers (OHCI
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or UHCI) to handle USB 1.1 devices connected to root hub ports. Ports
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will connect to EHCI if the device is high speed, otherwise they
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connect to a companion controller. If you configure EHCI, you should
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probably configure the OHCI (for NEC and some other vendors) USB Host
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Controller Driver or UHCI (for Via motherboards) Host Controller
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Driver too.
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You may want to read <file:Documentation/usb/ehci.txt>.
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config USB_EHCI
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bool
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default USB_EHCI_HCD
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---help---
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TODO: rename after most boards switch to Kconfig
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if USB_EHCI_HCD
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config USB_EHCI_MARVELL
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bool "Support for MVEBU (AXP / A38x) on-chip EHCI USB controller"
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depends on ARCH_MVEBU
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default y
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---help---
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Enables support for the on-chip EHCI controller on MVEBU SoCs.
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config USB_EHCI_MX6
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bool "Support for i.MX6 on-chip EHCI USB controller"
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depends on ARCH_MX6
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default y
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---help---
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Enables support for the on-chip EHCI controller on i.MX6 SoCs.
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config USB_EHCI_MX7
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bool "Support for i.MX7 on-chip EHCI USB controller"
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depends on ARCH_MX7
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default y
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---help---
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Enables support for the on-chip EHCI controller on i.MX7 SoCs.
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if USB_EHCI_MX7
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config MXC_USB_OTG_HACTIVE
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bool "USB Power pin high active"
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---help---
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Set the USB Power pin polarity to be high active (PWR_POL)
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endif
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config USB_EHCI_MSM
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bool "Support for Qualcomm on-chip EHCI USB controller"
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depends on DM_USB
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select USB_ULPI_VIEWPORT
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default n
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---help---
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Enables support for the on-chip EHCI controller on Qualcomm
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Snapdragon SoCs.
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This driver supports combination of Chipidea USB controller
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and Synapsys USB PHY in host mode only.
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config USB_EHCI_ZYNQ
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bool "Support for Xilinx Zynq on-chip EHCI USB controller"
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depends on ARCH_ZYNQ
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default y
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---help---
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Enable support for Zynq on-chip EHCI USB controller
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config USB_EHCI_GENERIC
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bool "Support for generic EHCI USB controller"
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depends on OF_CONTROL
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depends on DM_USB
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default n
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---help---
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Enables support for generic EHCI controller.
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endif # USB_EHCI_HCD
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config USB_OHCI_HCD
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bool "OHCI HCD (USB 1.1) support"
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---help---
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The Open Host Controller Interface (OHCI) is a standard for accessing
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USB 1.1 host controller hardware. It does more in hardware than Intel's
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UHCI specification. If your USB host controller follows the OHCI spec,
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say Y. On most non-x86 systems, and on x86 hardware that's not using a
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USB controller from Intel or VIA, this is appropriate. If your host
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controller doesn't use PCI, this is probably appropriate. For a PCI
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based system where you're not sure, the "lspci -v" entry will list the
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right "prog-if" for your USB controller(s): EHCI, OHCI, or UHCI.
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if USB_OHCI_HCD
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config USB_OHCI_GENERIC
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bool "Support for generic OHCI USB controller"
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depends on OF_CONTROL
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depends on DM_USB
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select USB_HOST
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---help---
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Enables support for generic OHCI controller.
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endif # USB_OHCI_HCD
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config USB_UHCI_HCD
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bool "UHCI HCD (most Intel and VIA) support"
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select USB_HOST
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---help---
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The Universal Host Controller Interface is a standard by Intel for
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accessing the USB hardware in the PC (which is also called the USB
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host controller). If your USB host controller conforms to this
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standard, you may want to say Y, but see below. All recent boards
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with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX,
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i810, i820) conform to this standard. Also all VIA PCI chipsets
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(like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro
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133) and LEON/GRLIB SoCs with the GRUSBHC controller.
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If unsure, say Y.
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if USB_UHCI_HCD
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endif # USB_UHCI_HCD
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