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Commit 194de561 authored by Bryan Wu's avatar Bryan Wu Committed by Linus Torvalds
Browse files

blackfin: serial driver 



This patch implements the driver necessary use the Analog Devices Blackfin
processor's Serial Port.

Signed-off-by: default avatarBryan 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1394f032

drivers/serial/Kconfig

+94 −0
Original line number Diff line number Diff line
@@ -508,6 +508,100 @@ config SERIAL_SA1100_CONSOLE 
	  your boot loader (lilo or loadlin) about how to pass options to the

	  kernel at boot time.)



config SERIAL_BFIN

	tristate "Blackfin serial port support"

	depends on BFIN

	select SERIAL_CORE

	select SERIAL_BFIN_UART0 if (BF531 || BF532 || BF533 || BF561)

	help

	  Add support for the built-in UARTs on the Blackfin.



	  To compile this driver as a module, choose M here: the

	  module will be called bfin_5xx.



config SERIAL_BFIN_CONSOLE

	bool "Console on Blackfin serial port"

	depends on SERIAL_BFIN

	select SERIAL_CORE_CONSOLE



choice

	prompt "UART Mode"

	depends on SERIAL_BFIN

	default SERIAL_BFIN_DMA

	help

	  This driver supports the built-in serial ports of the Blackfin family

	  of CPUs



config SERIAL_BFIN_DMA

	bool "DMA mode"

	depends on DMA_UNCACHED_1M

	help

	  This driver works under DMA mode. If this option is selected, the

	  blackfin simple dma driver is also enabled.



config SERIAL_BFIN_PIO

	bool "PIO mode"

	help

	  This driver works under PIO mode.



endchoice



config SERIAL_BFIN_UART0

	bool "Enable UART0"

	depends on SERIAL_BFIN

	help

	  Enable UART0



config BFIN_UART0_CTSRTS

	bool "Enable UART0 hardware flow control"

	depends on SERIAL_BFIN_UART0

	help

	  Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS

	  signal.



config UART0_CTS_PIN

	int "UART0 CTS pin"

	depends on BFIN_UART0_CTSRTS

	default 23

	help

	  The default pin is GPIO_GP7.

	  Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.



config UART0_RTS_PIN

	int "UART0 RTS pin"

	depends on BFIN_UART0_CTSRTS

	default 22

	help

	  The default pin is GPIO_GP6.

	  Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.



config SERIAL_BFIN_UART1

	bool "Enable UART1"

	depends on SERIAL_BFIN && (BF534 || BF536 || BF537)

	help

	  Enable UART1



config BFIN_UART1_CTSRTS

	bool "Enable UART1 hardware flow control"

	depends on SERIAL_BFIN_UART1

	help

	  Enable hardware flow control in the driver. Using GPIO emulate the CTS/RTS

	  signal.



config UART1_CTS_PIN

	int "UART1 CTS pin"

	depends on BFIN_UART1_CTSRTS

	default -1

	help

	  Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.



config UART1_RTS_PIN

	int "UART1 RTS pin"

	depends on BFIN_UART1_CTSRTS

	default -1

	help

	  Refer to ./include/asm-blackfin/gpio.h to see the GPIO map.



config SERIAL_IMX

	bool "IMX serial port support"

	depends on ARM && ARCH_IMX

drivers/serial/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o 
obj-$(CONFIG_SERIAL_PXA) += pxa.o

obj-$(CONFIG_SERIAL_PNX8XXX) += pnx8xxx_uart.o

obj-$(CONFIG_SERIAL_SA1100) += sa1100.o

obj-$(CONFIG_SERIAL_BFIN) += bfin_5xx.o

obj-$(CONFIG_SERIAL_S3C2410) += s3c2410.o

obj-$(CONFIG_SERIAL_SUNCORE) += suncore.o

obj-$(CONFIG_SERIAL_SUNHV) += sunhv.o

drivers/serial/bfin_5xx.c

0 → 100644
+1012 −0

File added.

Preview size limit exceeded, changes collapsed.

include/linux/serial_core.h

+3 −0
Original line number Diff line number Diff line
@@ -136,6 +136,9 @@ 
/* Xilinx uartlite */

#define PORT_UARTLITE	74



/* Blackfin bf5xx */

#define PORT_BFIN	75



#ifdef __KERNEL__



#include <linux/compiler.h>