CRIS v10: Add synchronous serial port driver for CRIS v10.

arch/cris/Kconfig

@@ -292,6 +292,37 @@ config ETRAX_PCF8563
 
 endchoice
 
+config ETRAX_SYNCHRONOUS_SERIAL
+	bool "Synchronous serial-port support"
+	help
+	  Select this to enable the synchronous serial port driver.
+
+config ETRAX_SYNCHRONOUS_SERIAL_PORT0
+	bool "Synchronous serial port 0 enabled"
+	depends on ETRAX_SYNCHRONOUS_SERIAL
+	help
+	  Enabled synchronous serial port 0.
+
+config ETRAX_SYNCHRONOUS_SERIAL0_DMA
+	bool "Enable DMA on synchronous serial port 0."
+	depends on ETRAX_SYNCHRONOUS_SERIAL_PORT0
+	help
+	  A synchronous serial port can run in manual or DMA mode.
+	  Selecting this option will make it run in DMA mode.
+
+config ETRAX_SYNCHRONOUS_SERIAL_PORT1
+	bool "Synchronous serial port 1 enabled"
+	depends on ETRAX_SYNCHRONOUS_SERIAL && (ETRAXFS || ETRAX_ARCH_V10)
+	help
+	  Enabled synchronous serial port 1.
+
+config ETRAX_SYNCHRONOUS_SERIAL1_DMA
+	bool "Enable DMA on synchronous serial port 1."
+	depends on ETRAX_SYNCHRONOUS_SERIAL_PORT1
+	help
+	  A synchronous serial port can run in manual or DMA mode.
+	  Selecting this option will make it run in DMA mode.
+
 choice
 	prompt "Network LED behavior"
 	depends on ETRAX_ETHERNET

arch/cris/arch-v10/drivers/Makefile

@@ -8,4 +8,5 @@ obj-$(CONFIG_ETRAX_I2C_EEPROM)		+= eeprom.o
 obj-$(CONFIG_ETRAX_GPIO)		+= gpio.o
 obj-$(CONFIG_ETRAX_DS1302)		+= ds1302.o
 obj-$(CONFIG_ETRAX_PCF8563)		+= pcf8563.o
+obj-$(CONFIG_ETRAX_SYNCHRONOUS_SERIAL)	+= sync_serial.o