bootrom/sdboot/Makefile

   1 # RISCV environment variable must be set
   2
   3 CC=$(RISCV)/bin/riscv64-unknown-elf-gcc
   4 OBJCOPY=$(RISCV)/bin/riscv64-unknown-elf-objcopy
   5 CFLAGS=-march=rv64imac -mcmodel=medany -O2 -std=gnu11 -Wall -nostartfiles
   6 CFLAGS+= -fno-common -g -DENTROPY=0 -mabi=lp64 -DNONSMP_HART=0
   7 CFLAGS+= -I $(BOOTROM_DIR)/include -I.
   8 LFLAGS=-static -nostdlib -L $(BOOTROM_DIR)/linker -T sdboot.elf.lds
   9
  10 dtb := $(BUILD_DIR)/$(CONFIG).dtb
  11 $(dtb): $(BUILD_DIR)/$(CONFIG).dts
  12         dtc -I dts -O dtb -o $@ $<
  13
  14 .PHONY: dtb
  15 dtb: $(dtb)
  16
  17 elf := $(BUILD_DIR)/sdboot.elf
  18 $(elf): $(dtb) head.S kprintf.c sd.c
  19         $(CC) $(CFLAGS) -DDEVICE_TREE='"$(dtb)"' $(LFLAGS) -o $@ head.S sd.c kprintf.c
  20
  21 .PHONY: elf
  22 elf: $(elf)
  23
  24 bin := $(BUILD_DIR)/sdboot.bin
  25 $(bin): $(elf)
  26         $(OBJCOPY) -O binary $< $@
  27
  28 .PHONY: bin
  29 bin: $(bin)
  30
  31 hex := $(BUILD_DIR)/sdboot.hex
  32 $(hex): $(bin)
  33         od -t x4 -An -w4 -v $< > $@
  34
  35 .PHONY: hex
  36 hex: $(hex)
  37
  38 romgen := $(BUILD_DIR)/rom.v
  39 $(romgen): $(hex)
  40         $(rocketchip_dir)/scripts/vlsi_rom_gen $(ROMCONF) $< > $@
  41
  42 .PHONY: romgen
  43 romgen: $(romgen)
  44
  45 .PHONY: clean
  46 clean::
  47         rm -rf $(hex) $(elf)