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serial: Add OMAP high-speed UART driver

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This patch adds driver support for OMAP2/3/4 high speed UART.

The driver is made separate from 8250 driver as we cannot
over load 8250 driver with omap platform specific configuration for
features like DMA, it makes easier to implement features like DMA and
hardware flow control and software flow control configuration with
this driver as required for the omap-platform.
This patch involves only the core driver and its dependent.

Cc: Tony Lindgren <[email protected]>
Signed-off-by: Govindraj.R <[email protected]>
Acked-by: Alan Cox <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Kevin Hilman <[email protected]>
This commit is contained in:
Govindraj.R 2010-09-27 20:20:49 +05:30 • committed by Kevin Hilman
commit b612633b59
5 changed files with 1493 additions and 0 deletions
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27
drivers/serial/Kconfig
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@ -1416,6 +1416,33 @@ config SERIAL_OF_PLATFORM
Currently, only 8250 compatible ports are supported, but
others can easily be added.
config SERIAL_OMAP
tristate "OMAP serial port support"
depends on ARCH_OMAP2 || ARCH_OMAP3 || ARCH_OMAP4
select SERIAL_CORE
help
If you have a machine based on an Texas Instruments OMAP CPU you
can enable its onboard serial ports by enabling this option.
By enabling this option you take advantage of dma feature available
with the omap-serial driver. DMA support can be enabled from platform
data.
config SERIAL_OMAP_CONSOLE
bool "Console on OMAP serial port"
depends on SERIAL_OMAP
select SERIAL_CORE_CONSOLE
help
Select this option if you would like to use omap serial port as
console.
Even if you say Y here, the currently visible virtual console
(/dev/tty0) will still be used as the system console by default, but
you can alter that using a kernel command line option such as
"console=ttyOx". (Try "man bootparam" or see the documentation of
your boot loader about how to pass options to the kernel at
boot time.)
config SERIAL_OF_PLATFORM_NWPSERIAL
tristate "NWP serial port driver"
depends on PPC_OF && PPC_DCR

1
drivers/serial/Makefile
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@ -88,3 +88,4 @@ obj-$(CONFIG_SERIAL_ALTERA_JTAGUART) += altera_jtaguart.o
obj-$(CONFIG_SERIAL_ALTERA_UART) += altera_uart.o
obj-$(CONFIG_SERIAL_MRST_MAX3110) += mrst_max3110.o
obj-$(CONFIG_SERIAL_MFD_HSU) += mfd.o
obj-$(CONFIG_SERIAL_OMAP) += omap-serial.o

1333
drivers/serial/omap-serial.c Normal file
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