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c767c1c6f1
Minor musb_hdrc updates:
- so it'll build on DaVinci, given relevant platform updates;
* remove support for an un-shipped OTG prototype
* rely on gpiolib framework conversion for the I2C GPIOs
* the <asm/arch/hdrc_cnf.h> mechanism has been removed
- catch comments up to the recent removal of the per-SOC header
with the silicon configuration data;
- and remove two inappropriate "inline" declarations which
just bloat host side code.
There are still some more <asm/arch/XYZ.h> ==> <mach/XYZ.h>
changes needed in this driver, catching up to the relocation
of most of the include/asm-arm/arch-* contents.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: stable <stable@kernel.org> [2.6.27]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
173 lines
5.3 KiB
Plaintext
173 lines
5.3 KiB
Plaintext
#
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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 TWL4030_USB if MACH_OMAP_3430SDP
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tristate 'Inventra Highspeed Dual Role Controller (TI, ...)'
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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 parts using this IP include DaVinci 644x,
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OMAP 243x, OMAP 343x, and TUSB 6010.
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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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comment "DaVinci 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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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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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
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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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