84e250ffa7
Let the otg_transceiver in MUSB be managed by an external driver; don't assume it's integrated. OMAP3 chips need it to be external, and there may be ways to interact with the transceiver which add functionality to the system. Platform init code is responsible for setting up the transeciver, probably using the NOP transceiver for integrated transceivers. External ones will use whatever the board init code provided, such as twl4030 or something more hands-off. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
183 lines
5.7 KiB
Text
183 lines
5.7 KiB
Text
#
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# USB Dual Role (OTG-ready) Controller Drivers
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# for silicon based on Mentor Graphics INVENTRA designs
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#
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comment "Enable Host or Gadget support to see Inventra options"
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depends on !USB && USB_GADGET=n
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# (M)HDRC = (Multipoint) Highspeed Dual-Role Controller
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config USB_MUSB_HDRC
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depends on (USB || USB_GADGET) && HAVE_CLK
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depends on !SUPERH
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select NOP_USB_XCEIV if ARCH_DAVINCI
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select TWL4030_USB if MACH_OMAP_3430SDP
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select USB_OTG_UTILS
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tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
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help
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Say Y here if your system has a dual role high speed USB
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controller based on the Mentor Graphics silicon IP. Then
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configure options to match your silicon and the board
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it's being used with, including the USB peripheral role,
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or the USB host role, or both.
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Texas Instruments familiies using this IP include DaVinci
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(35x, 644x ...), OMAP 243x, OMAP 3, and TUSB 6010.
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Analog Devices parts using this IP include Blackfin BF54x,
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BF525 and BF527.
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If you do not know what this is, please say N.
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To compile this driver as a module, choose M here; the
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module will be called "musb_hdrc".
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config USB_MUSB_SOC
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boolean
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depends on USB_MUSB_HDRC
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default y if ARCH_DAVINCI
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default y if ARCH_OMAP2430
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default y if ARCH_OMAP34XX
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default y if (BF54x && !BF544)
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default y if (BF52x && !BF522 && !BF523)
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comment "DaVinci 35x and 644x USB support"
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depends on USB_MUSB_HDRC && ARCH_DAVINCI
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comment "OMAP 243x high speed USB support"
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depends on USB_MUSB_HDRC && ARCH_OMAP2430
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comment "OMAP 343x high speed USB support"
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depends on USB_MUSB_HDRC && ARCH_OMAP34XX
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comment "Blackfin high speed USB Support"
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depends on USB_MUSB_HDRC && ((BF54x && !BF544) || (BF52x && !BF522 && !BF523))
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config USB_TUSB6010
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boolean "TUSB 6010 support"
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depends on USB_MUSB_HDRC && !USB_MUSB_SOC
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select NOP_USB_XCEIV
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default y
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help
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The TUSB 6010 chip, from Texas Instruments, connects a discrete
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HDRC core using a 16-bit parallel bus (NOR flash style) or VLYNQ
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(a high speed serial link). It can use system-specific external
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DMA controllers.
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choice
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prompt "Driver Mode"
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depends on USB_MUSB_HDRC
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help
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Dual-Role devices can support both host and peripheral roles,
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as well as a the special "OTG Device" role which can switch
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between both roles as needed.
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# use USB_MUSB_HDRC_HCD not USB_MUSB_HOST to #ifdef host side support;
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# OTG needs both roles, not just USB_MUSB_HOST.
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config USB_MUSB_HOST
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depends on USB
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bool "USB Host"
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help
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Say Y here if your system supports the USB host role.
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If it has a USB "A" (rectangular), "Mini-A" (uncommon),
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or "Mini-AB" connector, it supports the host role.
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(With a "Mini-AB" connector, you should enable USB OTG.)
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# use USB_GADGET_MUSB_HDRC not USB_MUSB_PERIPHERAL to #ifdef peripheral
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# side support ... OTG needs both roles
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config USB_MUSB_PERIPHERAL
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depends on USB_GADGET
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bool "USB Peripheral (gadget stack)"
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select USB_GADGET_MUSB_HDRC
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help
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Say Y here if your system supports the USB peripheral role.
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If it has a USB "B" (squarish), "Mini-B", or "Mini-AB"
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connector, it supports the peripheral role.
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(With a "Mini-AB" connector, you should enable USB OTG.)
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config USB_MUSB_OTG
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depends on USB && USB_GADGET && PM && EXPERIMENTAL
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bool "Both host and peripheral: USB OTG (On The Go) Device"
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select USB_GADGET_MUSB_HDRC
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select USB_OTG
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help
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The most notable feature of USB OTG is support for a
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"Dual-Role" device, which can act as either a device
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or a host. The initial role choice can be changed
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later, when two dual-role devices talk to each other.
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At this writing, the OTG support in this driver is incomplete,
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omitting the mandatory HNP or SRP protocols. However, some
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of the cable based role switching works. (That is, grounding
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the ID pin switches the controller to host mode, while leaving
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it floating leaves it in peripheral mode.)
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Select this if your system has a Mini-AB connector, or
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to simplify certain kinds of configuration.
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To implement your OTG Targeted Peripherals List (TPL), enable
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USB_OTG_WHITELIST and update "drivers/usb/core/otg_whitelist.h"
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to match your requirements.
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endchoice
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# enable peripheral support (including with OTG)
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config USB_GADGET_MUSB_HDRC
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bool
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depends on USB_MUSB_HDRC && (USB_MUSB_PERIPHERAL || USB_MUSB_OTG)
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# default y
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# select USB_GADGET_DUALSPEED
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# select USB_GADGET_SELECTED
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# enables host support (including with OTG)
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config USB_MUSB_HDRC_HCD
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bool
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depends on USB_MUSB_HDRC && (USB_MUSB_HOST || USB_MUSB_OTG)
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select USB_OTG if USB_GADGET_MUSB_HDRC
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default y
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config MUSB_PIO_ONLY
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bool 'Disable DMA (always use PIO)'
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depends on USB_MUSB_HDRC
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default y if USB_TUSB6010
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help
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All data is copied between memory and FIFO by the CPU.
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DMA controllers are ignored.
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Do not select 'n' here unless DMA support for your SOC or board
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is unavailable (or unstable). When DMA is enabled at compile time,
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you can still disable it at run time using the "use_dma=n" module
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parameter.
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config USB_INVENTRA_DMA
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bool
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depends on USB_MUSB_HDRC && !MUSB_PIO_ONLY
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default ARCH_OMAP2430 || ARCH_OMAP34XX || BLACKFIN
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help
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Enable DMA transfers using Mentor's engine.
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config USB_TI_CPPI_DMA
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bool
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depends on USB_MUSB_HDRC && !MUSB_PIO_ONLY
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default ARCH_DAVINCI
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help
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Enable DMA transfers when TI CPPI DMA is available.
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config USB_TUSB_OMAP_DMA
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bool
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depends on USB_MUSB_HDRC && !MUSB_PIO_ONLY
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depends on USB_TUSB6010
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depends on ARCH_OMAP
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default y
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help
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Enable DMA transfers on TUSB 6010 when OMAP DMA is available.
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config USB_MUSB_DEBUG
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depends on USB_MUSB_HDRC
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bool "Enable debugging messages"
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default n
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help
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This enables musb debugging. To set the logging level use the debug
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module parameter. Starting at level 3, per-transfer (urb, usb_request,
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packet, or dma transfer) tracing may kick in.
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