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+#
+# Copyright 2018 Ettus Research LLC
+#
+
+# NOTE: All comments prefixed with a "##" will be displayed as a part of the "make help" target
+##-------------------
+##USRP E3XX FPGA Help
+##-------------------
+##Usage:
+## make <Targets> <Options>
+##
+##Output:
+## build/usrp_<product>_fpga_<image_type>.bit: Configuration bitstream with header
+## build/usrp_<product>_fpga_<image_type>.dts: Device tree source file
+## build/usrp_<product>_fpga_<image_type>.rpt: Build report (includes utilization and timing summary)
+
+# Set build option (check RTL, run synthesis, or do a full build)
+ifndef TARGET
+ ifdef CHECK
+ TARGET = rtl
+ else ifdef SYNTH
+ TARGET = synth
+ else
+ TARGET = bin
+ endif
+endif
+TOP ?= e31x
+
+DEFAULT_IMAGE_CORE_FILE_E31X=e31x_rfnoc_image_core.v
+DEFAULT_EDGE_FILE_E31X=$(abspath e310_static_router.hex)
+
+# vivado_build($1=Device, $2=Definitions)
+vivado_build = make -f Makefile.e31x.inc $(TARGET) NAME=$@ ARCH=$(XIL_ARCH_$1) PART_ID=$(XIL_PART_ID_$1) $2 TOP_MODULE=$(TOP) EXTRA_DEFS="$2" DEFAULT_RFNOC_IMAGE_CORE_FILE=$(DEFAULT_IMAGE_CORE_FILE_E31X) DEFAULT_EDGE_FILE=$(DEFAULT_EDGE_FILE_E31X)
+
+# post_build($1=Device, $2=Option)
+ifeq ($(TARGET),bin)
+ post_build = @\
+ mkdir -p build; \
+ echo "Exporting bitstream file..."; \
+ cp build-$(1)/e31x.bit build/usrp_`echo $(2) | tr A-Z a-z`_fpga.bit; \
+ echo "Exporting build report..."; \
+ cp build-$(1)/build.rpt build/usrp_`echo $(2) | tr A-Z a-z`_fpga.rpt; \
+ echo "Build DONE ... $(1)";
+else
+ post_build = @echo "Skipping bitfile export."
+endif
+
+##
+##Supported Targets
+##-----------------
+
+all: E310_SG1_IDLE E310_SG3_IDLE E310_SG1 E310_SG3 E310_SG1_RFNOC E310_SG3_RFNOC ##(Default target)
+
+##E310_SG1_IDLE: Build USRP E3XX idle design (Speed Grade 1).
+E310_SG1_IDLE E3XX_idle: build/usrp_e310_sg1_idle_fpga.dts
+ $(call vivado_build,E310_SG1, E310_IDLE_IMAGE=1 E310_SG1=1)
+ $(call post_build,$@,E310_SG1_IDLE)
+
+##E310_SG3_IDLE: Build USRP E3XX idle design (Speed Grade 3).
+E310_SG3_IDLE E3XX_idle_sg3: build/usrp_e310_sg3_idle_fpga.dts
+ $(call vivado_build,E310_SG3, E310_IDLE_IMAGE=1 E310_SG3=1)
+ $(call post_build,$@,E310_SG3_IDLE)
+
+##E310_SG1: Build USRP E3XX (Speed Grade 1).
+E310_SG1 E310: build/usrp_e310_sg1_fpga.dts
+ $(call vivado_build,E310_SG1, E310_SG1=1)
+ $(call post_build,$@,E310_SG1)
+
+##E310_SG3: Build USRP E3XX (Speed Grade 3).
+E310_SG3 E310_sg3: build/usrp_e310_sg3_fpga.dts
+ $(call vivado_build,E310_SG3, E310_SG3=1)
+ $(call post_build,$@,E310_SG3)
+
+
+build/%.dts: dts/%.dts dts/*.dtsi
+ -mkdir -p build
+ ${CC} -o $@ -E -I dts -nostdinc -undef -x assembler-with-cpp -D__DTS__ $<
+
+clean: ##Clean up all target build outputs.
+ @echo "Cleaning targets..."
+ @rm -rf build-E3*
+ @rm -rf build
+
+cleanall: ##Clean up all target and ip build outputs.
+ @echo "Cleaning targets and IP..."
+ @rm -rf build-ip
+ @rm -rf build-E3*
+ @rm -rf build
+
+help: ##Show this help message.
+ @grep -h "##" Makefile | grep -v "\"##\"" | sed -e 's/\\$$//' | sed -e 's/##//'
+
+##
+##Supported Options
+##-----------------
+##GUI=1 Launch the build in the Vivado GUI.
+##CHECK=1 Launch the syntax checker instead of building a bitfile.
+##SYNTH=1 Launch the build but stop after synthesis.
+##TOP=<module> Specify a top module for syntax checking. (Optional. Default is the bitfile top)
+
+.PHONY: all clean cleanall help