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The Linux kernel configuration item CONFIG_ETRAX_SERIAL_PORT0
has multiple definitions:
arch/cris/arch-v32/drivers/Kconfig
The configuration item CONFIG_ETRAX_SERIAL_PORT0:
CONFIG_ETRAXFS_SERIAL
Enables the ETRAX FS serial driver for ser0 (ttyS0) Normally you want this on. You can control what DMA channels to use if you do not need DMA to something else. ser0 can use dma4 or dma6 for output and dma5 or dma7 for input.
arch/cris/arch-v10/drivers/Kconfig
The configuration item CONFIG_ETRAX_SERIAL_PORT0:
CONFIG_ETRAX_SERIAL
Enables the ETRAX 100 serial driver for ser0 (ttyS0) Normally you want this on, unless you use external DMA 1 that uses the same DMA channels.
arch/cris/drivers/Kconfig
The configuration item CONFIG_ETRAX_SERIAL_PORT0:
CONFIG_ETRAX_SERIAL
Enables the ETRAX 100 serial driver for ser0 (ttyS0) Normally you want this on, unless you use external DMA 1 that uses the same DMA channels.
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