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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>
31 lines
1.0 KiB
Makefile
31 lines
1.0 KiB
Makefile
#
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# for USB OTG silicon based on Mentor Graphics INVENTRA designs
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#
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obj-$(CONFIG_USB_MUSB_HDRC) += musb_hdrc.o
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musb_hdrc-y := musb_core.o
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musb_hdrc-y += musb_gadget_ep0.o musb_gadget.o
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musb_hdrc-y += musb_virthub.o musb_host.o
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musb_hdrc-$(CONFIG_DEBUG_FS) += musb_debugfs.o
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# Hardware Glue Layer
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obj-$(CONFIG_USB_MUSB_OMAP2PLUS) += omap2430.o
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obj-$(CONFIG_USB_MUSB_AM35X) += am35x.o
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obj-$(CONFIG_USB_MUSB_TUSB6010) += tusb6010.o
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obj-$(CONFIG_USB_MUSB_DAVINCI) += davinci.o
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obj-$(CONFIG_USB_MUSB_DA8XX) += da8xx.o
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obj-$(CONFIG_USB_MUSB_BLACKFIN) += blackfin.o
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obj-$(CONFIG_USB_MUSB_UX500) += ux500.o
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# the kconfig must guarantee that only one of the
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# possible I/O schemes will be enabled at a time ...
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# PIO only, or DMA (several potential schemes).
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# though PIO is always there to back up DMA, and for ep0
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musb_hdrc-$(CONFIG_USB_INVENTRA_DMA) += musbhsdma.o
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musb_hdrc-$(CONFIG_USB_TI_CPPI_DMA) += cppi_dma.o
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musb_hdrc-$(CONFIG_USB_TUSB_OMAP_DMA) += tusb6010_omap.o
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musb_hdrc-$(CONFIG_USB_UX500_DMA) += ux500_dma.o
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