[MAINTENANCE] add script for easy cocotb environment preparation

tests/cocotb/Makefile

@@ -6,10 +6,11 @@
 
 
 CARD = fb2cghh
+SIM = cocotb
 
 CARD_DIR=../../build/$(CARD)/
 
 ROOT_DIR:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
 
 all:
-	make TARGET=cocotb -C $(CARD_DIR) PYTHONPATH=$$PYTHONPATH:$(ROOT_DIR)
+	make TARGET=$(SIM) -C $(CARD_DIR) PYTHONPATH=$$PYTHONPATH:$(ROOT_DIR) TOP_LEVEL_ENT=fpga

tests/cocotb/prepare.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+OFM_PATH=../../ndk/ofm
+
+#swbase=../../../swbase/
+swbase=git+https://github.com/CESNET/ndk-sw.git#subdirectory=
+
+PKG_PYNFB=${swbase}pynfb/
+PKG_LIBNFBEXT_PYTHON=${swbase}ext/libnfb_ext_python/
+PKG_COCOTBEXT_OFM=$OFM_PATH/python/cocotbext/
+
+# Python virtual environment
+python -m venv venv-cocotb
+source venv-cocotb/bin/activate
+
+python -m pip install cython wheel
+python -m pip install pylibfdt fdt
+python -m pip install $PKG_PYNFB 
+python -m pip install $PKG_LIBNFBEXT_PYTHON 
+python -m pip install $PKG_COCOTBEXT_OFM 
+
+echo ""
+echo "Now activate environment with:"
+echo "source venv-cocotb/bin/activate"