v4.19.13 snapshot.
diff --git a/drivers/misc/c2port/Kconfig b/drivers/misc/c2port/Kconfig
new file mode 100644
index 0000000..0dd690e
--- /dev/null
+++ b/drivers/misc/c2port/Kconfig
@@ -0,0 +1,34 @@
+#
+# C2 port devices
+#
+
+menuconfig C2PORT
+ tristate "Silicon Labs C2 port support"
+ default n
+ help
+ This option enables support for Silicon Labs C2 port used to
+ program Silicon micro controller chips (and other 8051 compatible).
+
+ If your board have no such micro controllers you don't need this
+ interface at all.
+
+ To compile this driver as a module, choose M here: the module will
+ be called c2port_core. Note that you also need a client module
+ usually called c2port-*.
+
+ If you are not sure, say N here.
+
+if C2PORT
+
+config C2PORT_DURAMAR_2150
+ tristate "C2 port support for Eurotech's Duramar 2150"
+ depends on X86
+ default n
+ help
+ This option enables C2 support for the Eurotech's Duramar 2150
+ on board micro controller.
+
+ To compile this driver as a module, choose M here: the module will
+ be called c2port-duramar2150.
+
+endif # C2PORT