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# SPDX-FileCopyrightText: 2020 Efabless Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# SPDX-License-Identifier: Apache-2.0
## Caravel Pointers
CARAVEL_ROOT ?= ../../../caravel
CARAVEL_PATH ?= $(CARAVEL_ROOT)
CARAVEL_FIRMWARE_PATH = $(CARAVEL_PATH)/verilog/dv/caravel
CARAVEL_VERILOG_PATH = $(CARAVEL_PATH)/verilog
CARAVEL_RTL_PATH = $(CARAVEL_VERILOG_PATH)/rtl
CARAVEL_BEHAVIOURAL_MODELS = $(CARAVEL_VERILOG_PATH)/dv/caravel
## User Project Pointers
UPRJ_VERILOG_PATH ?= ../../../verilog
UPRJ_RTL_PATH = $(UPRJ_VERILOG_PATH)/rtl
UPRJ_BEHAVIOURAL_MODELS = $(UPRJ_VERILOG_PATH)/user_behav_models
## RISCV GCC
GCC_PATH?=/opt/riscv32i/bin
GCC_PREFIX?=riscv32-unknown-elf
PDK_PATH=/home/siva/Documents/skywater_pdk/sky130A/
## Simulation mode: RTL/GL
SIM=RTL
.SUFFIXES:
PATTERN = i2c_test
all: ${PATTERN:=.vcd}
hex: ${PATTERN:=.hex}
%.vvp: %_tb.v %.hex
ifeq ($(SIM),RTL)
iverilog -DFUNCTIONAL -DSIM -I $(PDK_PATH) \
-I $(CARAVEL_BEHAVIOURAL_MODELS) -I $(CARAVEL_RTL_PATH) \
-I $(UPRJ_BEHAVIOURAL_MODELS) -I $(UPRJ_RTL_PATH) \
$< -o $@
else
iverilog -DFUNCTIONAL -DSIM -DGL -I $(PDK_PATH) \
-I $(CARAVEL_BEHAVIOURAL_MODELS) -I $(CARAVEL_RTL_PATH) -I $(CARAVEL_VERILOG_PATH) \
-I $(UPRJ_BEHAVIOURAL_MODELS) -I$(UPRJ_RTL_PATH) -I $(UPRJ_VERILOG_PATH) \
$< -o $@
endif
%.vcd: %.vvp
vvp $<
%.elf: %.c $(CARAVEL_FIRMWARE_PATH)/sections.lds $(CARAVEL_FIRMWARE_PATH)/start.s
${GCC_PATH}/${GCC_PREFIX}-gcc -I $(CARAVEL_PATH) -march=rv32i -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
%.hex: %.elf
${GCC_PATH}/${GCC_PREFIX}-objcopy -O verilog $< $@
# to fix flash base address
sed -i 's/@10000000/@00000000/g' $@
%.bin: %.elf
${GCC_PATH}/${GCC_PREFIX}-objcopy -O binary $< /dev/stdout | tail -c +1048577 > $@
# ---- Clean ----
clean:
rm -f *.elf *.hex *.bin *.vvp *.vcd *.log
.PHONY: clean hex all