arch/microblaze/Makefile

   1 ifeq ($(CONFIG_MMU),y)
   2 UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
   3 else
   4 UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
   5 endif
   6
   7 # What CPU vesion are we building for, and crack it open
   8 # as major.minor.rev
   9 CPU_VER   := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
  10 CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1)
  11 CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2)
  12 CPU_REV   := $(shell echo $(CPU_VER) | cut -d '.' -f 3)
  13
  14 export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
  15
  16 # Use cpu-related CONFIG_ vars to set compile options.
  17 # The various CONFIG_XILINX cpu features options are integers 0/1/2...
  18 # rather than bools y/n
  19
  20 # Work out HW multipler support.  This is icky.
  21 # 1. Spartan2 has no HW multiplers.
  22 # 2. MicroBlaze v3.x always uses them, except in Spartan 2
  23 # 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
  24 ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
  25   ifeq ($(CPU_MAJOR),3)
  26     CPUFLAGS-1 += -mno-xl-soft-mul
  27   else
  28     # USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support.
  29     CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
  30     CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
  31   endif
  32 endif
  33 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
  34 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
  35 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
  36
  37 CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
  38
  39 # r31 holds current when in kernel mode
  40 KBUILD_KERNEL += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
  41
  42 LDFLAGS         :=
  43 LDFLAGS_vmlinux :=
  44
  45 LIBGCC := $(shell $(CC) $(KBUILD_KERNEL) -print-libgcc-file-name)
  46
  47 head-y := arch/microblaze/kernel/head.o
  48 libs-y += arch/microblaze/lib/
  49 libs-y += $(LIBGCC)
  50 core-y += arch/microblaze/kernel/
  51 core-y += arch/microblaze/mm/
  52 core-y += arch/microblaze/platform/
  53
  54 boot := arch/microblaze/boot
  55
  56 # defines filename extension depending memory management type
  57 ifeq ($(CONFIG_MMU),)
  58 MMU := -nommu
  59 endif
  60
  61 export MMU
  62
  63 all: linux.bin
  64
  65 archclean:
  66         $(Q)$(MAKE) $(clean)=$(boot)
  67
  68 linux.bin linux.bin.gz: vmlinux
  69         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  70
  71 define archhelp
  72   echo  '* linux.bin    - Create raw binary'
  73   echo  '  linux.bin.gz - Create compressed raw binary'
  74 endef