arch/microblaze/Makefile

   1 KBUILD_DEFCONFIG := mmu_defconfig
   2
   3 ifeq ($(CONFIG_MMU),y)
   4 UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
   5 else
   6 UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
   7 endif
   8
   9 # What CPU vesion are we building for, and crack it open
  10 # as major.minor.rev
  11 CPU_VER   := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
  12 CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1)
  13 CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2)
  14 CPU_REV   := $(shell echo $(CPU_VER) | cut -d '.' -f 3)
  15
  16 export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
  17
  18 # Use cpu-related CONFIG_ vars to set compile options.
  19 # The various CONFIG_XILINX cpu features options are integers 0/1/2...
  20 # rather than bools y/n
  21
  22 # Work out HW multipler support. This is tricky.
  23 # 1. Spartan2 has no HW multipliers.
  24 # 2. MicroBlaze v3.x always uses them, except in Spartan 2
  25 # 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
  26 ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
  27   ifeq ($(CPU_MAJOR),3)
  28     CPUFLAGS-1 += -mno-xl-soft-mul
  29   else
  30     # USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support.
  31     CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
  32     CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
  33   endif
  34 endif
  35 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
  36 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
  37 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
  38
  39 CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
  40
  41 # r31 holds current when in kernel mode
  42 KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
  43
  44 LDFLAGS         :=
  45 LDFLAGS_vmlinux :=
  46
  47 head-y := arch/microblaze/kernel/head.o
  48 libs-y += arch/microblaze/lib/
  49 core-y += arch/microblaze/kernel/
  50 core-y += arch/microblaze/mm/
  51 core-$(CONFIG_PCI) += arch/microblaze/pci/
  52
  53 drivers-$(CONFIG_OPROFILE) += arch/microblaze/oprofile/
  54
  55 boot := arch/microblaze/boot
  56
  57 # Are we making a simpleImage.<boardname> target? If so, crack out the boardname
  58 DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS)))
  59
  60 ifneq ($(DTB),)
  61         core-y  += $(boot)/dts/
  62 endif
  63
  64 # defines filename extension depending memory management type
  65 ifeq ($(CONFIG_MMU),)
  66 MMU := -nommu
  67 endif
  68
  69 export MMU DTB
  70
  71 all: linux.bin
  72
  73 archclean:
  74         $(Q)$(MAKE) $(clean)=$(boot)
  75
  76 linux.bin linux.bin.gz linux.bin.ub: vmlinux
  77         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  78
  79 simpleImage.%: vmlinux
  80         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  81
  82 define archhelp
  83   echo '* linux.bin    - Create raw binary'
  84   echo '  linux.bin.gz - Create compressed raw binary'
  85   echo '  linux.bin.ub - Create U-Boot wrapped raw binary'
  86   echo '  simpleImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
  87   echo '                   - stripped elf with fdt blob'
  88   echo '  simpleImage.<dt>.unstrip - full ELF image with fdt blob'
  89   echo '  *_defconfig      - Select default config from arch/microblaze/configs'
  90   echo ''
  91   echo '  Targets with <dt> embed a device tree blob inside the image'
  92   echo '  These targets support board with firmware that does not'
  93   echo '  support passing a device tree directly. Replace <dt> with the'
  94   echo '  name of a dts file from the arch/microblaze/boot/dts/ directory'
  95   echo '  (minus the .dts extension).'
  96 endef
  97
  98 MRPROPER_FILES += $(boot)/simpleImage.*