arch/microblaze/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 KBUILD_DEFCONFIG := mmu_defconfig
   3
   4 ifeq ($(CONFIG_MMU),y)
   5 UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
   6 else
   7 UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
   8 endif
   9
  10 # What CPU vesion are we building for, and crack it open
  11 # as major.minor.rev
  12 CPU_VER   := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
  13 CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1)
  14 CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2)
  15 CPU_REV   := $(shell echo $(CPU_VER) | cut -d '.' -f 3)
  16
  17 export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
  18
  19 # Use cpu-related CONFIG_ vars to set compile options.
  20 # The various CONFIG_XILINX cpu features options are integers 0/1/2...
  21 # rather than bools y/n
  22
  23 # Work out HW multipler support. This is tricky.
  24 # 1. Spartan2 has no HW multipliers.
  25 # 2. MicroBlaze v3.x always uses them, except in Spartan 2
  26 # 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
  27 ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
  28   ifeq ($(CPU_MAJOR),3)
  29     CPUFLAGS-1 += -mno-xl-soft-mul
  30   else
  31     # USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support.
  32     CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
  33     CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
  34   endif
  35 endif
  36 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
  37 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
  38 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
  39
  40 ifdef CONFIG_CPU_BIG_ENDIAN
  41 KBUILD_CFLAGS += -mbig-endian
  42 KBUILD_AFLAGS += -mbig-endian
  43 KBUILD_LDFLAGS += -EB
  44 else
  45 KBUILD_CFLAGS += -mlittle-endian
  46 KBUILD_AFLAGS += -mlittle-endian
  47 KBUILD_LDFLAGS += -EL
  48 endif
  49
  50 CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
  51
  52 # r31 holds current when in kernel mode
  53 KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-y) $(CPUFLAGS-1) $(CPUFLAGS-2)
  54
  55 head-y := arch/microblaze/kernel/head.o
  56 libs-y += arch/microblaze/lib/
  57 core-y += arch/microblaze/kernel/
  58 core-y += arch/microblaze/mm/
  59 core-$(CONFIG_PCI) += arch/microblaze/pci/
  60
  61 drivers-$(CONFIG_OPROFILE) += arch/microblaze/oprofile/
  62
  63 boot := arch/microblaze/boot
  64
  65 # Are we making a simpleImage.<boardname> target? If so, crack out the boardname
  66 DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS)))
  67
  68 ifneq ($(DTB),)
  69         core-y  += $(boot)/dts/
  70 endif
  71
  72 # defines filename extension depending memory management type
  73 ifeq ($(CONFIG_MMU),)
  74 MMU := -nommu
  75 endif
  76
  77 export MMU DTB
  78
  79 all: linux.bin
  80
  81 archclean:
  82         $(Q)$(MAKE) $(clean)=$(boot)
  83
  84 linux.bin linux.bin.gz linux.bin.ub: vmlinux
  85         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  86
  87 simpleImage.%: vmlinux
  88         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  89
  90 define archhelp
  91   echo '* linux.bin    - Create raw binary'
  92   echo '  linux.bin.gz - Create compressed raw binary'
  93   echo '  linux.bin.ub - Create U-Boot wrapped raw binary'
  94   echo '  simpleImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
  95   echo '                   - stripped elf with fdt blob'
  96   echo '  simpleImage.<dt>.unstrip - full ELF image with fdt blob'
  97   echo '  *_defconfig      - Select default config from arch/microblaze/configs'
  98   echo ''
  99   echo '  Targets with <dt> embed a device tree blob inside the image'
 100   echo '  These targets support board with firmware that does not'
 101   echo '  support passing a device tree directly. Replace <dt> with the'
 102   echo '  name of a dts file from the arch/microblaze/boot/dts/ directory'
 103   echo '  (minus the .dts extension).'
 104 endef
 105
 106 MRPROPER_FILES += $(boot)/simpleImage.*