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blackfin: serial driver
This patch implements the driver necessary use the Analog Devices Blackfin processor's Serial Port. Signed-off-by: Bryan Wu <bryan.wu@analog.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Russell King <rmk+lkml@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -508,6 +508,100 @@ config SERIAL_SA1100_CONSOLE
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your boot loader (lilo or loadlin) about how to pass options to the
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kernel at boot time.)
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config SERIAL_BFIN
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tristate "Blackfin serial port support"
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depends on BFIN
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select SERIAL_CORE
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select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)
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help
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Add support for the built-in UARTs on the Blackfin.
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To compile this driver as a module, choose M here: the
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module will be called bfin_5xx.
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config SERIAL_BFIN_CONSOLE
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bool "Console on Blackfin serial port"
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depends on SERIAL_BFIN
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select SERIAL_CORE_CONSOLE
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choice
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prompt "UART Mode"
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depends on SERIAL_BFIN
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default SERIAL_BFIN_DMA
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help
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This driver supports the built-in serial ports of the Blackfin family
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of CPUs
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config SERIAL_BFIN_DMA
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bool "DMA mode"
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depends on DMA_UNCACHED_1M
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help
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This driver works under DMA mode. If this option is selected, the
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blackfin simple dma driver is also enabled.
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config SERIAL_BFIN_PIO
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bool "PIO mode"
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help
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This driver works under PIO mode.
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endchoice
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config SERIAL_BFIN_UART0
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bool "Enable UART0"
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depends on SERIAL_BFIN
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help
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Enable UART0
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config BFIN_UART0_CTSRTS
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bool "Enable UART0 hardware flow control"
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depends on SERIAL_BFIN_UART0
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help
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Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
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signal.
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config UART0_CTS_PIN
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int "UART0 CTS pin"
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depends on BFIN_UART0_CTSRTS
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default 23
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help
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The default pin is GPIO_GP7.
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Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
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config UART0_RTS_PIN
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int "UART0 RTS pin"
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depends on BFIN_UART0_CTSRTS
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default 22
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help
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The default pin is GPIO_GP6.
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Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
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config SERIAL_BFIN_UART1
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bool "Enable UART1"
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depends on SERIAL_BFIN && (BF534 || BF536 || BF537)
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help
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Enable UART1
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config BFIN_UART1_CTSRTS
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bool "Enable UART1 hardware flow control"
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depends on SERIAL_BFIN_UART1
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help
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Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS
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signal.
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config UART1_CTS_PIN
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int "UART1 CTS pin"
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depends on BFIN_UART1_CTSRTS
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default -1
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help
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Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
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config UART1_RTS_PIN
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int "UART1 RTS pin"
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depends on BFIN_UART1_CTSRTS
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default -1
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help
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Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.
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config SERIAL_IMX
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bool "IMX serial port support"
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depends on ARM && ARCH_IMX
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@ -27,6 +27,7 @@ obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o
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obj-$(CONFIG_SERIAL_PXA) += pxa.o
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obj-$(CONFIG_SERIAL_PNX8XXX) += pnx8xxx_uart.o
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obj-$(CONFIG_SERIAL_SA1100) += sa1100.o
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obj-$(CONFIG_SERIAL_BFIN) += bfin_5xx.o
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obj-$(CONFIG_SERIAL_S3C2410) += s3c2410.o
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obj-$(CONFIG_SERIAL_SUNCORE) += suncore.o
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obj-$(CONFIG_SERIAL_SUNHV) += sunhv.o
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1012
drivers/serial/bfin_5xx.c
Normal file
1012
drivers/serial/bfin_5xx.c
Normal file
File diff suppressed because it is too large
Load diff
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@ -136,6 +136,9 @@
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/* Xilinx uartlite */
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#define PORT_UARTLITE 74
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/* Blackfin bf5xx */
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#define PORT_BFIN 75
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#ifdef __KERNEL__
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#include <linux/compiler.h>
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