bootrom/xip/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=rv32imac -mabi=ilp32 -O2 -std=gnu11 -Wall -I. -nostartfiles -fno-common -g
   6 LFLAGS=-static -nostdlib
   7
   8 dtb := $(BUILD_DIR)/$(CONFIG).dtb
   9 $(dtb): $(BUILD_DIR)/$(CONFIG).dts
  10         dtc -I dts -O dtb -o $@ $<
  11
  12 .PHONY: dtb
  13 dtb: $(dtb)
  14
  15 elf := $(BUILD_DIR)/xip.elf
  16 $(elf): xip.S $(dtb)
  17         $(CC) $(CFLAGS) -DXIP_TARGET_ADDR=0x20400000 -DDEVICE_TREE='"$(dtb)"' $(LFLAGS) -o $@ $<
  18
  19 .PHONY: elf
  20 elf: $(elf)
  21
  22 bin := $(BUILD_DIR)/xip.bin
  23 $(bin): $(elf)
  24         $(OBJCOPY) -O binary $< $@
  25
  26 .PHONY: bin
  27 bin: $(bin)
  28
  29 hex := $(BUILD_DIR)/xip.hex
  30 $(hex): $(bin)
  31         od -t x4 -An -w4 -v $< > $@
  32
  33 .PHONY: hex
  34 hex: $(hex)
  35
  36 romgen := $(BUILD_DIR)/rom.v
  37 $(romgen): $(hex)
  38         $(rocketchip_dir)/scripts/vlsi_rom_gen $(ROMCONF) $< > $@
  39
  40 .PHONY: romgen
  41 romgen: $(romgen)
  42
  43 .PHONY: clean
  44 clean::
  45         rm -rf $(hex) $(elf)