Delete Makefile
diff --git a/verilog/dv/io_ports/Makefile b/verilog/dv/io_ports/Makefile
deleted file mode 100644
index 0ef079e..0000000
--- a/verilog/dv/io_ports/Makefile
+++ /dev/null
@@ -1,78 +0,0 @@
-# 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 = ../
-
-## RISCV GCC
-GCC_PATH?=/ef/apps/bin
-GCC_PREFIX?=riscv32-unknown-elf
-PDK_PATH?=/ef/tech/SW/sky130A
-
-## Simulation mode: RTL/GL
-SIM?=RTL
-
-.SUFFIXES:
-
-PATTERN = io_ports
-
-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 $(CARAVEL_PATH) -march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(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
