--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+BIN2C = ../../../../src/helper/bin2char.sh
+
+# Toolchain used in makefile
+CROSS_COMPILE ?= arm-none-eabi-
+CC = $(CROSS_COMPILE)gcc
+CPLUS = $(CROSS_COMPILE)g++
+CPP = $(CROSS_COMPILE)cpp
+LD = $(CROSS_COMPILE)gcc
+AS = $(CROSS_COMPILE)as
+OBJCOPY = $(CROSS_COMPILE)objcopy
+OBJDUMP = $(CROSS_COMPILE)objdump
+OBJSIZE = $(CROSS_COMPILE)size
+
+TARGET = npcx_algo
+OBJS := npcx_flash.o
+FLAGS = -mthumb -Os -ffunction-sections -fdata-sections -g -gdwarf-3 --specs=nano.specs
+FLAGS += -gstrict-dwarf -Wall -fno-strict-aliasing --asm
+
+CFLAGS = -c -I. -mcpu=cortex-m4 -fpack-struct
+
+PRE_LD_FILE = npcx_flash.lds
+LD_FILE = npcx_flash_generated.lds
+LDFLAGS = -Wl,-Map,lfw.map -Wl,-T$(LD_FILE) -nostartfiles
+
+all: $(TARGET).inc
+
+# Implicit rules
+%.o: %.c
+ -@ echo CC $@ from $<
+ @$(CC) $< $(FLAGS) $(CFLAGS) -o $@
+
+ $(LD_FILE): $(PRE_LD_FILE)
+ -@ echo Generate $@ from $<
+ -@$(CPP) $(PRE_LD_FILE) | grep -v '^#' >>$(LD_FILE)
+
+$(TARGET).elf: $(OBJS) $(LD_FILE)
+ -@ echo LD $@ from $<
+ @$(LD) -o $@ $< $(FLAGS) $(LDFLAGS)
+
+%.bin: %.elf
+ -@ echo OBJCOPY $@ from $<
+ -@ $(OBJCOPY) $< -O binary $@
+ -@ $(OBJSIZE) $< --format=berkeley
+
+%.inc: %.bin
+ @echo 'Building target: $@'
+ @echo 'Invoking Bin2Char Script'
+ $(BIN2C) < $< > $@
+ rm $< $*.elf
+ @echo 'Finished building target: $@'
+ @echo ' '
+
+clean:
+ @echo 'Cleaning Targets and Build Artifacts'
+ rm -rf *.inc *.bin *.elf *.map
+ rm -rf *.o *.d
+ rm -rf $(LD_FILE)
+ @echo 'Finished clean'
+ @echo ' '
+
+.PRECIOUS: %.bin
+
+.PHONY: all clean