v4.19.13 snapshot.
diff --git a/drivers/pci/switch/Kconfig b/drivers/pci/switch/Kconfig
new file mode 100644
index 0000000..aee28a5
--- /dev/null
+++ b/drivers/pci/switch/Kconfig
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+
+menu "PCI switch controller drivers"
+ depends on PCI
+
+config PCI_SW_SWITCHTEC
+ tristate "MicroSemi Switchtec PCIe Switch Management Driver"
+ help
+ Enables support for the management interface for the MicroSemi
+ Switchtec series of PCIe switches. Supports userspace access
+ to submit MRPC commands to the switch via /dev/switchtecX
+ devices. See <file:Documentation/switchtec.txt> for more
+ information.
+
+endmenu