arch/microblaze/Makefile

   1 ifeq ($(CONFIG_MMU),y)
   2 UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
   3 else
   4 UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
   5 endif
   6
   7 # What CPU vesion are we building for, and crack it open
   8 # as major.minor.rev
   9 CPU_VER=$(subst ",,$(CONFIG_XILINX_MICROBLAZE0_HW_VER) )
  10 CPU_MAJOR=$(shell echo $(CPU_VER) | cut -d '.' -f 1)
  11 CPU_MINOR=$(shell echo $(CPU_VER) | cut -d '.' -f 2)
  12 CPU_REV=$(shell echo $(CPU_VER) | cut -d '.' -f 3)
  13
  14 export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
  15
  16 # Use cpu-related CONFIG_ vars to set compile options.
  17
  18 # Work out HW multipler support.  This is icky.
  19 # 1. Spartan2 has no HW multiplers.
  20 # 2. MicroBlaze v3.x always uses them, except in Spartan 2
  21 # 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
  22 ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
  23   ifeq ($(CPU_MAJOR),3)
  24     CPUFLAGS-1 += -mno-xl-soft-mul
  25   else
  26     # USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support.
  27     CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
  28     CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
  29   endif
  30 endif
  31 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
  32 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
  33 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
  34
  35 CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
  36
  37 # The various CONFIG_XILINX cpu features options are integers 0/1/2...
  38 # rather than bools y/n
  39
  40 # r31 holds current when in kernel mode
  41 CFLAGS_KERNEL += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
  42
  43 LDFLAGS         :=
  44 LDFLAGS_vmlinux :=
  45 LDFLAGS_BLOB := --format binary --oformat elf32-microblaze
  46
  47 LIBGCC := $(shell $(CC) $(CFLAGS_KERNEL) -print-libgcc-file-name)
  48
  49 head-y          := arch/microblaze/kernel/head.o
  50 libs-y          += arch/microblaze/lib/ $(LIBGCC)
  51 core-y          += arch/microblaze/kernel/ arch/microblaze/mm/ \
  52                    arch/microblaze/platform/
  53
  54 boot := arch/$(ARCH)/boot
  55
  56 # defines filename extension depending memory management type
  57 ifeq ($(CONFIG_MMU),)
  58 MMUEXT          := -nommu
  59 endif
  60 export  MMUEXT
  61
  62 all: linux.bin
  63
  64 archclean:
  65         $(Q)$(MAKE) $(clean)=$(boot)
  66
  67 linux.bin linux.bin.gz: vmlinux
  68         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  69
  70 define archhelp
  71   echo  '* linux.bin    - Create raw binary'
  72   echo  '  linux.bin.gz - Create compressed raw binary'
  73 endef