freedom/bootrom/sdboot/Makefile

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2017-08-19 03:21:04 +02:00
# RISCV environment variable must be set
CC=$(RISCV)/bin/riscv64-unknown-elf-gcc
OBJCOPY=$(RISCV)/bin/riscv64-unknown-elf-objcopy
CFLAGS=-march=rv64imac -mcmodel=medany -O2 -std=gnu11 -Wall -nostartfiles
CFLAGS+= -fno-common -g -DENTROPY=0 -mabi=lp64 -DNONSMP_HART=0
CFLAGS+= -I $(BOOTROM_DIR)/include -I.
LFLAGS=-static -nostdlib -L $(BOOTROM_DIR)/linker -T sdboot.elf.lds
dtb := $(BUILD_DIR)/$(CONFIG).dtb
$(dtb): $(BUILD_DIR)/$(CONFIG).dts
dtc -I dts -O dtb -o $@ $<
.PHONY: dtb
dtb: $(dtb)
elf := $(BUILD_DIR)/sdboot.elf
$(elf): $(dtb) head.S kprintf.c sd.c
$(CC) $(CFLAGS) -DDEVICE_TREE='"$(dtb)"' $(LFLAGS) -o $@ head.S sd.c kprintf.c
.PHONY: elf
elf: $(elf)
bin := $(BUILD_DIR)/sdboot.bin
$(bin): $(elf)
$(OBJCOPY) -O binary $< $@
.PHONY: bin
bin: $(bin)
hex := $(BUILD_DIR)/sdboot.hex
$(hex): $(bin)
od -t x4 -An -w4 -v $< > $@
.PHONY: hex
hex: $(hex)
romgen := $(BUILD_DIR)/rom.v
$(romgen): $(hex)
$(rocketchip_dir)/scripts/vlsi_rom_gen $(ROMCONF) $< > $@
.PHONY: romgen
romgen: $(romgen)
.PHONY: clean
clean::
rm -rf $(hex) $(elf)