arch/microblaze/Makefile

   1 UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
   2
   3 # What CPU vesion are we building for, and crack it open
   4 # as major.minor.rev
   5 CPU_VER=$(subst ",,$(CONFIG_XILINX_MICROBLAZE0_HW_VER) )
   6 CPU_MAJOR=$(shell echo $(CPU_VER) | cut -d '.' -f 1)
   7 CPU_MINOR=$(shell echo $(CPU_VER) | cut -d '.' -f 2)
   8 CPU_REV=$(shell echo $(CPU_VER) | cut -d '.' -f 3)
   9
  10 export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
  11
  12 # Use cpu-related CONFIG_ vars to set compile options.
  13
  14 # Work out HW multipler support.  This is icky.
  15 # 1. Spartan2 has no HW multiplers.
  16 # 2. MicroBlaze v3.x always uses them, except in Spartan 2
  17 # 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
  18 ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
  19   ifeq ($(CPU_MAJOR),3)
  20     CPUFLAGS-1 += -mno-xl-soft-mul
  21   else
  22     # USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support.
  23     CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
  24     CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
  25   endif
  26 endif
  27 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
  28 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
  29 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP) += -mxl-pattern-compare
  30
  31 CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
  32
  33 # The various CONFIG_XILINX cpu features options are integers 0/1/2...
  34 # rather than bools y/n
  35 CFLAGS += $(CPUFLAGS-1)
  36 CFLAGS += $(CPUFLAGS-2)
  37
  38 # r31 holds current when in kernel mode
  39 CFLAGS += -ffixed-r31
  40
  41 LDFLAGS_BLOB := --format binary --oformat elf32-microblaze
  42
  43 LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
  44
  45 head-y          := arch/microblaze/kernel/head.o
  46 libs-y          += arch/microblaze/lib/ $(LIBGCC)
  47 core-y          += arch/microblaze/kernel/ arch/microblaze/mm/ \
  48                    arch/microblaze/platform/
  49
  50 boot := arch/$(ARCH)/boot
  51
  52 # defines filename extension depending memory management type
  53 ifeq ($(CONFIG_MMU),)
  54 MMUEXT          := -nommu
  55 endif
  56 export  MMUEXT
  57
  58 all: linux.bin
  59
  60 archclean:
  61         $(Q)$(MAKE) $(clean)=$(boot)
  62
  63 linux.bin linux.bin.gz: vmlinux
  64         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  65
  66 define archhelp
  67   echo  '* linux.bin    - Create raw binary'
  68   echo  '  linux.bin.gz - Create compressed raw binary'
  69 endef