2e7fc3ba68
The logic to allow only one DMA driver in MUSB is currently flawed, because it also allows picking no DMA driver at all and also not selecting PIO mode. Using a choice statement makes this foolproof for now and also simplifies the Makefile. Unfortunately, we will have to revisit this when we start supporting multiple ARM platforms in a single kernel binary, because at that point we will actually need to select multiple DMA drivers and pick the right one at run-time. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
121 lines
3.4 KiB
Text
121 lines
3.4 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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# (M)HDRC = (Multipoint) Highspeed Dual-Role Controller
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config USB_MUSB_HDRC
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depends on USB && USB_GADGET
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depends on (ARM || (BF54x && !BF544) || (BF52x && !BF522 && !BF523))
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select NOP_USB_XCEIV if (ARCH_DAVINCI || MACH_OMAP3EVM || BLACKFIN)
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select TWL4030_USB if MACH_OMAP_3430SDP
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select TWL6030_USB if MACH_OMAP_4430SDP || MACH_OMAP4_PANDA
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select USB_OTG_UTILS
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select USB_GADGET_DUALSPEED
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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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choice
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prompt "Platform Glue Layer"
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depends on USB_MUSB_HDRC
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config USB_MUSB_DAVINCI
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tristate "DaVinci"
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depends on ARCH_DAVINCI_DMx
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config USB_MUSB_DA8XX
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tristate "DA8xx/OMAP-L1x"
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depends on ARCH_DAVINCI_DA8XX
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config USB_MUSB_TUSB6010
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tristate "TUSB6010"
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depends on ARCH_OMAP
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config USB_MUSB_OMAP2PLUS
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tristate "OMAP2430 and onwards"
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depends on ARCH_OMAP2PLUS
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config USB_MUSB_AM35X
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tristate "AM35x"
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depends on ARCH_OMAP
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config USB_MUSB_BLACKFIN
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tristate "Blackfin"
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depends on (BF54x && !BF544) || (BF52x && ! BF522 && !BF523)
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config USB_MUSB_UX500
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tristate "U8500 and U5500"
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depends on (ARCH_U8500 && AB8500_USB)
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endchoice
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choice
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prompt 'MUSB DMA mode'
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default USB_UX500_DMA if USB_MUSB_UX500
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default USB_INVENTRA_DMA if USB_MUSB_OMAP2PLUS || USB_MUSB_BLACKFIN
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default USB_TI_CPPI_DMA if USB_MUSB_DAVINCI
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default USB_TUSB_OMAP_DMA if USB_MUSB_TUSB6010
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default MUSB_PIO_ONLY if USB_MUSB_TUSB6010 || USB_MUSB_DA8XX || USB_MUSB_AM35X
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help
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Unfortunately, only one option can be enabled here. Ideally one
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should be able to build all these drivers into one kernel to
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allow using DMA on multiplatform kernels.
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config USB_UX500_DMA
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bool 'ST Ericsson U8500 and U5500'
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depends on USB_MUSB_HDRC
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depends on USB_MUSB_UX500
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help
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Enable DMA transfers on UX500 platforms.
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config USB_INVENTRA_DMA
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bool 'Inventra'
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depends on USB_MUSB_HDRC
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depends on USB_MUSB_OMAP2PLUS || USB_MUSB_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 'TI CPPI (Davinci)'
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depends on USB_MUSB_HDRC
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depends on USB_MUSB_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 'TUSB 6010'
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depends on USB_MUSB_HDRC
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depends on USB_MUSB_TUSB6010
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depends on ARCH_OMAP
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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 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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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 choose this 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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endchoice
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