serial: Add support for UART on VIA VT8500 and compatibles

This adds a driver for the serial ports found in VIA and WonderMedia
Systems-on-Chip. Interrupt-driven FIFO operation is implemented.
The hardware also supports pure register-based operation (which is
slower) and DMA-based FIFO operation. As the FIFOs are only 16 bytes
long, DMA operation is probably not worth the hassle.

Signed-off-by: Alexey Charkov <alchark@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 0b9cc17b380b..388e37132cc9 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -1381,6 +1381,16 @@ config SERIAL_MSM_CONSOLE
         depends on SERIAL_MSM=y
         select SERIAL_CORE_CONSOLE
 
+config SERIAL_VT8500
+        bool "VIA VT8500 on-chip serial port support"
+        depends on ARM && ARCH_VT8500
+        select SERIAL_CORE
+
+config SERIAL_VT8500_CONSOLE
+        bool "VIA VT8500 serial console support"
+        depends on SERIAL_VT8500=y
+        select SERIAL_CORE_CONSOLE
+
 config SERIAL_NETX
         tristate "NetX serial port support"
         depends on ARM && ARCH_NETX