serial: rp2: New driver for Comtrol RocketPort 2 cards

This driver supports the RocketPort EXPRESS and RocketPort INFINITY
families of PCI/PCIe multiport serial adapters.  These adapters use a
"RocketPort 2" ASIC that is not compatible with the original RocketPort
driver (CONFIG_ROCKETPORT).

Tested with the RocketPort EXPRESS Octa DB9 and Quad DB9.  Also added an
old RocketPort 8J PCI card to the same system to verify that rocket.c and
rp2.c coexist peacefully.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index aff3cd356662..2dc429357fe3 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -1458,4 +1458,28 @@ config SERIAL_ARC_NR_PORTS
           Set this to the number of serial ports you want the driver
           to support.
 
+config SERIAL_RP2
+        tristate "Comtrol RocketPort EXPRESS/INFINITY support"
+        depends on PCI
+        select SERIAL_CORE
+        help
+          This driver supports the Comtrol RocketPort EXPRESS and
+          RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
+          These adapters use a "RocketPort 2" ASIC that is not compatible
+          with the original RocketPort driver (CONFIG_ROCKETPORT).
+
+          To compile this driver as a module, choose M here: the
+          module will be called rp2.
+
+          If you want to compile this driver into the kernel, say Y here.  If
+          you don't have a suitable RocketPort card installed, say N.
+
+config SERIAL_RP2_NR_UARTS
+        int "Maximum number of RocketPort EXPRESS/INFINITY ports"
+        depends on SERIAL_RP2
+        default "32"
+        help
+          If multiple cards are present, the default limit of 32 ports may
+          need to be increased.
+
 endmenu