coldboot/Makefile

   1 ARCH = $(shell uname -m)
   2 ifneq ("$(ARCH)", "ppc64")
   3 ifneq ("$(ARCH)", "ppc64le")
   4         CROSS_COMPILE ?= powerpc64le-linux-gnu-
   5 endif
   6 endif
   7
   8 # a multiplier factor on sleep loops. this allows simulations to run
   9 # at much shorter intervals
  10 LONG_TIMER_MULT = 100000
  11 SHORT_TIMER_MULT = 1000
  12 #LONG_TIMER_MULT = 1
  13 #SHORT_TIMER_MULT = 1
  14
  15 # SPI boot address 0xf000_0000, main SRAM boot would be 0x0000_0000
  16 # but remember to recompile external_core_top.v with a matching
  17 # --pc_reset=0xNNNNNNNN
  18 # BOOT_INIT_BASE ?= 0xf0000000 # at QSPI address
  19 BOOT_INIT_BASE ?= 0xff000000   # at ROM hi address (with coldboot firmware)
  20 # BOOT_INIT_BASE ?= 0x0        # start at zero (usual)
  21
  22 LIBGRAMDIR = ../libgram
  23 LIBGRAMINC = ../libgram/include
  24
  25 GRAMOBJS := $(LIBGRAMDIR)/src/init.o \
  26             $(LIBGRAMDIR)/src/dfii.o \
  27             $(LIBGRAMDIR)/src/calibration.o
  28
  29 CC = $(CROSS_COMPILE)gcc
  30 LD = $(CROSS_COMPILE)ld
  31 OBJCOPY = $(CROSS_COMPILE)objcopy
  32
  33 CFLAGS = -Os -g -Wall -std=c99 -msoft-float -mno-string \
  34             -mno-multiple -mno-vsx -mno-altivec -mlittle-endian \
  35             -fno-stack-protector -mstrict-align -ffreestanding \
  36                 -fno-delete-null-pointer-checks \
  37             -fdata-sections -ffunction-sections -I../include \
  38             -I $(LIBGRAMINC) \
  39             -DLONG_TIMER_MULT=$(LONG_TIMER_MULT) \
  40             -DBOOT_INIT_BASE=$(BOOT_INIT_BASE) \
  41             -DSHORT_TIMER_MULT=$(SHORT_TIMER_MULT)
  42 ASFLAGS = $(CFLAGS)
  43 LDFLAGS = -static -nostdlib -T powerpc.lds
  44
  45 all: coldboot.hex coldboot.S
  46
  47 console.o: ../lib/console.c
  48         $(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
  49
  50 init.o: ../libgram/src/init.c
  51         $(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
  52
  53 dfii.o: ../libgram/src/dfii.c
  54         $(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
  55
  56 calibration.o: ../libgram/src/calibration.c
  57         $(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
  58
  59 powerpc.lds: powerpc.lds.S
  60         $(CC) $(CFLAGS) -P -E powerpc.lds.S -o powerpc.lds
  61
  62 OBJS := coldboot.o tercel.o head.o ../lib/console.o $(GRAMOBJS)
  63
  64 coldboot.elf: $(OBJS) powerpc.lds
  65         $(LD) $(LDFLAGS) -o $@ $(OBJS)
  66
  67 coldboot.bin: coldboot.elf
  68         $(OBJCOPY) -O binary $^ $@
  69
  70 coldboot.hex: coldboot.bin
  71         ../scripts/bin2hex.py $^ > $@
  72         powerpc64le-linux-gnu-objdump -D coldboot.elf > coldboot.as
  73
  74 coldboot.S: coldboot.elf
  75         objdump -S coldboot.elf > coldboot.S
  76
  77
  78 clean:
  79         @rm -f ../lib/*.o ../libgram/src/*.o *.o coldboot.elf coldboot.bin \
  80         coldboot.hex coldboot.as coldboot.S powerpc.lds
  81 distclean: clean
  82         rm -f *~
  83