u-boot/drivers/usb/host/Kconfig
Masahiro Yamada 2b58e1b76d usb: add (move) CONFIG_USB_HOST to Kconfig
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 commit 6e7e9294d3 ("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, commit 68f7c5db2d ("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>
2016-08-07 21:55:42 +02:00

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4.6 KiB
Text

#
# USB Host Controller Drivers
#
comment "USB Host Controller Drivers"
config USB_HOST
bool
config USB_XHCI_HCD
bool "xHCI HCD (USB 3.0) support"
select USB_HOST
---help---
The eXtensible Host Controller Interface (xHCI) is standard for USB 3.0
"SuperSpeed" host controller hardware.
if USB_XHCI_HCD
config USB_XHCI_UNIPHIER
bool "Support for UniPhier on-chip xHCI USB controller"
depends on ARCH_UNIPHIER
default y
---help---
Enables support for the on-chip xHCI controller on UniPhier SoCs.
config USB_XHCI_DWC3
bool "DesignWare USB3 DRD Core Support"
help
Say Y or if your system has a Dual Role SuperSpeed
USB controller based on the DesignWare USB3 IP Core.
endif # USB_XHCI_HCD
config USB_EHCI_HCD
bool "EHCI HCD (USB 2.0) support"
select USB_HOST
---help---
The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0
"high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware.
If your USB host controller supports USB 2.0, you will likely want to
configure this Host Controller Driver.
EHCI controllers are packaged with "companion" host controllers (OHCI
or UHCI) to handle USB 1.1 devices connected to root hub ports. Ports
will connect to EHCI if the device is high speed, otherwise they
connect to a companion controller. If you configure EHCI, you should
probably configure the OHCI (for NEC and some other vendors) USB Host
Controller Driver or UHCI (for Via motherboards) Host Controller
Driver too.
You may want to read <file:Documentation/usb/ehci.txt>.
config USB_EHCI
bool
default USB_EHCI_HCD
---help---
TODO: rename after most boards switch to Kconfig
if USB_EHCI_HCD
config USB_EHCI_MARVELL
bool "Support for MVEBU (AXP / A38x) on-chip EHCI USB controller"
depends on ARCH_MVEBU
default y
---help---
Enables support for the on-chip EHCI controller on MVEBU SoCs.
config USB_EHCI_MX6
bool "Support for i.MX6 on-chip EHCI USB controller"
depends on ARCH_MX6
default y
---help---
Enables support for the on-chip EHCI controller on i.MX6 SoCs.
config USB_EHCI_MX7
bool "Support for i.MX7 on-chip EHCI USB controller"
depends on ARCH_MX7
default y
---help---
Enables support for the on-chip EHCI controller on i.MX7 SoCs.
if USB_EHCI_MX7
config MXC_USB_OTG_HACTIVE
bool "USB Power pin high active"
---help---
Set the USB Power pin polarity to be high active (PWR_POL)
endif
config USB_EHCI_MSM
bool "Support for Qualcomm on-chip EHCI USB controller"
depends on DM_USB
select USB_ULPI_VIEWPORT
default n
---help---
Enables support for the on-chip EHCI controller on Qualcomm
Snapdragon SoCs.
This driver supports combination of Chipidea USB controller
and Synapsys USB PHY in host mode only.
config USB_EHCI_ZYNQ
bool "Support for Xilinx Zynq on-chip EHCI USB controller"
depends on ARCH_ZYNQ
default y
---help---
Enable support for Zynq on-chip EHCI USB controller
config USB_EHCI_GENERIC
bool "Support for generic EHCI USB controller"
depends on OF_CONTROL
depends on DM_USB
default n
---help---
Enables support for generic EHCI controller.
endif # USB_EHCI_HCD
config USB_OHCI_HCD
bool "OHCI HCD (USB 1.1) support"
---help---
The Open Host Controller Interface (OHCI) is a standard for accessing
USB 1.1 host controller hardware. It does more in hardware than Intel's
UHCI specification. If your USB host controller follows the OHCI spec,
say Y. On most non-x86 systems, and on x86 hardware that's not using a
USB controller from Intel or VIA, this is appropriate. If your host
controller doesn't use PCI, this is probably appropriate. For a PCI
based system where you're not sure, the "lspci -v" entry will list the
right "prog-if" for your USB controller(s): EHCI, OHCI, or UHCI.
if USB_OHCI_HCD
config USB_OHCI_GENERIC
bool "Support for generic OHCI USB controller"
depends on OF_CONTROL
depends on DM_USB
select USB_HOST
---help---
Enables support for generic OHCI controller.
endif # USB_OHCI_HCD
config USB_UHCI_HCD
bool "UHCI HCD (most Intel and VIA) support"
select USB_HOST
---help---
The Universal Host Controller Interface is a standard by Intel for
accessing the USB hardware in the PC (which is also called the USB
host controller). If your USB host controller conforms to this
standard, you may want to say Y, but see below. All recent boards
with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX,
i810, i820) conform to this standard. Also all VIA PCI chipsets
(like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro
133) and LEON/GRLIB SoCs with the GRUSBHC controller.
If unsure, say Y.
if USB_UHCI_HCD
endif # USB_UHCI_HCD