tilegx: Add tty serial support for TILE-Gx on-chip UART

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 5e3d689..fdcaaef 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -1436,6 +1436,15 @@
 	depends on SERIAL_EFM32_UART=y
 	select SERIAL_CORE_CONSOLE
 
+config SERIAL_TILEGX
+	tristate "TILE-Gx on-chip serial port support"
+	depends on TILEGX
+	select TILE_GXIO_UART
+	select SERIAL_CORE
+	---help---
+	  This device provides access to the on-chip UARTs on the TILE-Gx
+	  processor.
+
 config SERIAL_ARC
 	tristate "ARC UART driver support"
 	select SERIAL_CORE