linux/arch/microblaze/Makefile
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   1ifeq ($(CONFIG_MMU),y)
   2UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
   3else
   4UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
   5endif
   6
   7# What CPU vesion are we building for, and crack it open
   8# as major.minor.rev
   9CPU_VER   := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
  10CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1)
  11CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2)
  12CPU_REV   := $(shell echo $(CPU_VER) | cut -d '.' -f 3)
  13
  14export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
  15
  16# Use cpu-related CONFIG_ vars to set compile options.
  17# The various CONFIG_XILINX cpu features options are integers 0/1/2...
  18# rather than bools y/n
  19
  20# Work out HW multipler support. This is tricky.
  21# 1. Spartan2 has no HW multipliers.
  22# 2. MicroBlaze v3.x always uses them, except in Spartan 2
  23# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
  24ifeq (,$(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 hierarchy of HW Mul support.
  29    CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
  30    CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
  31  endif
  32endif
  33CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
  34CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
  35CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
  36
  37CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
  38
  39# r31 holds current when in kernel mode
  40KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
  41
  42LDFLAGS         :=
  43LDFLAGS_vmlinux :=
  44
  45head-y := arch/microblaze/kernel/head.o
  46libs-y += arch/microblaze/lib/
  47core-y += arch/microblaze/kernel/
  48core-y += arch/microblaze/mm/
  49core-y += arch/microblaze/platform/
  50core-$(CONFIG_PCI) += arch/microblaze/pci/
  51
  52drivers-$(CONFIG_OPROFILE) += arch/microblaze/oprofile/
  53
  54boot := arch/microblaze/boot
  55
  56# Are we making a simpleImage.<boardname> target? If so, crack out the boardname
  57DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS)))
  58
  59ifneq ($(DTB),)
  60        core-y  += $(boot)/
  61endif
  62
  63# defines filename extension depending memory management type
  64ifeq ($(CONFIG_MMU),)
  65MMU := -nommu
  66endif
  67
  68export MMU DTB
  69
  70all: linux.bin
  71
  72# With make 3.82 we cannot mix normal and wildcard targets
  73BOOT_TARGETS1 = linux.bin linux.bin.gz
  74BOOT_TARGETS2 = simpleImage.%
  75
  76archclean:
  77        $(Q)$(MAKE) $(clean)=$(boot)
  78
  79$(BOOT_TARGETS1): vmlinux
  80        $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  81$(BOOT_TARGETS2): vmlinux
  82        $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  83
  84define archhelp
  85  echo '* linux.bin    - Create raw binary'
  86  echo '  linux.bin.gz - Create compressed raw binary'
  87  echo '  simpleImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
  88  echo '                   - stripped elf with fdt blob'
  89  echo '  simpleImage.<dt>.unstrip - full ELF image with fdt blob'
  90  echo '  *_defconfig      - Select default config from arch/microblaze/configs'
  91  echo ''
  92  echo '  Targets with <dt> embed a device tree blob inside the image'
  93  echo '  These targets support board with firmware that does not'
  94  echo '  support passing a device tree directly. Replace <dt> with the'
  95  echo '  name of a dts file from the arch/microblaze/boot/dts/ directory'
  96  echo '  (minus the .dts extension).'
  97endef
  98
  99MRPROPER_FILES += $(boot)/simpleImage.*
 100
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