+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Radiona ULX3S
+# https://radiona.org/ulx3s/
+# Currently there are following board variants:
+# CS-ULX3S-01 - LFE5U 12F
+# CS-ULX3S-02 - LFE5U 45F
+# CS-ULX3S-03 - LFE5U 85F
+#
+# two JTAG interfaces:
+# - US1, micro USB port connected to FT231XQ
+# This interface should be used with following config:
+# interface/ft232r/radiona_ulx3s.cfg
+# - J4, 6 pin connector
+#
+# Both of this interfaces share the JTAG lines (TDI, TMS, TCK, TDO) between
+# Lattice ECP5 FPGA chip and ESP32 WiFi controller.
+# Note: TRST_N of the ESP32 is pulled up by default and can be pulled down over
+# J3 interface.
+# See schematics for more information:
+# https://github.com/emard/ulx3s/blob/master/doc/schematics_v308.pdf
+# https://github.com/emard/ulx3s/blob/master/doc/schematics_v314.pdf
+# https://github.com/emard/ulx3s/blob/master/doc/schematics_v315.pdf
+# https://github.com/emard/ulx3s/blob/master/doc/schematics_v316.pdf
+
+source [find interface/ft232r/radiona_ulx3s.cfg]
+source [find fpga/lattice_ecp5.cfg]