arch/arm/boot/Makefile

   1 #
   2 # arch/arm/boot/Makefile
   3 #
   4 # This file is included by the global makefile so that you can add your own
   5 # architecture-specific flags and dependencies.
   6 #
   7 # This file is subject to the terms and conditions of the GNU General Public
   8 # License.  See the file "COPYING" in the main directory of this archive
   9 # for more details.
  10 #
  11 # Copyright (C) 1995-2002 Russell King
  12 #
  13
  14 ifneq ($(MACHINE),)
  15 include $(srctree)/$(MACHINE)/Makefile.boot
  16 endif
  17
  18 # Note: the following conditions must always be true:
  19 #   ZRELADDR == virt_to_phys(PAGE_OFFSET + TEXT_OFFSET)
  20 #   PARAMS_PHYS must be within 4MB of ZRELADDR
  21 #   INITRD_PHYS must be in RAM
  22 ZRELADDR    := $(zreladdr-y)
  23 PARAMS_PHYS := $(params_phys-y)
  24 INITRD_PHYS := $(initrd_phys-y)
  25
  26 export ZRELADDR INITRD_PHYS PARAMS_PHYS
  27
  28 targets := Image zImage xipImage bootpImage uImage
  29
  30 ifeq ($(CONFIG_XIP_KERNEL),y)
  31
  32 $(obj)/xipImage: vmlinux FORCE
  33         $(call if_changed,objcopy)
  34         @echo '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
  35
  36 $(obj)/Image $(obj)/zImage: FORCE
  37         @echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
  38         @echo 'Only the xipImage target is available in this case'
  39         @false
  40
  41 else
  42
  43 $(obj)/xipImage: FORCE
  44         @echo 'Kernel not configured for XIP (CONFIG_XIP_KERNEL!=y)'
  45         @false
  46
  47 $(obj)/Image: vmlinux FORCE
  48         $(call if_changed,objcopy)
  49         @echo '  Kernel: $@ is ready'
  50
  51 $(obj)/compressed/vmlinux: $(obj)/Image FORCE
  52         $(Q)$(MAKE) $(build)=$(obj)/compressed $@
  53
  54 $(obj)/zImage:  $(obj)/compressed/vmlinux FORCE
  55         $(call if_changed,objcopy)
  56         @echo '  Kernel: $@ is ready'
  57
  58 endif
  59
  60 targets += $(dtb-y)
  61
  62 # Rule to build device tree blobs
  63 $(obj)/%.dtb: $(src)/dts/%.dts FORCE
  64         $(call if_changed_dep,dtc)
  65
  66 $(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y))
  67
  68 clean-files := *.dtb
  69
  70 ifneq ($(LOADADDR),)
  71   UIMAGE_LOADADDR=$(LOADADDR)
  72 else
  73   ifeq ($(CONFIG_ZBOOT_ROM),y)
  74     UIMAGE_LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
  75   else
  76     UIMAGE_LOADADDR=$(ZRELADDR)
  77   endif
  78 endif
  79
  80 check_for_multiple_loadaddr = \
  81 if [ $(words $(UIMAGE_LOADADDR)) -gt 1 ]; then \
  82         echo 'multiple load addresses: $(UIMAGE_LOADADDR)'; \
  83         echo 'This is incompatible with uImages'; \
  84         echo 'Specify LOADADDR on the commandline to build an uImage'; \
  85         false; \
  86 fi
  87
  88 $(obj)/uImage:  $(obj)/zImage FORCE
  89         @$(check_for_multiple_loadaddr)
  90         $(call if_changed,uimage)
  91         @echo '  Image $@ is ready'
  92
  93 $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
  94         $(Q)$(MAKE) $(build)=$(obj)/bootp $@
  95         @:
  96
  97 $(obj)/bootpImage: $(obj)/bootp/bootp FORCE
  98         $(call if_changed,objcopy)
  99         @echo '  Kernel: $@ is ready'
 100
 101 PHONY += initrd FORCE
 102 initrd:
 103         @test "$(INITRD_PHYS)" != "" || \
 104         (echo This machine does not support INITRD; exit -1)
 105         @test "$(INITRD)" != "" || \
 106         (echo You must specify INITRD; exit -1)
 107
 108 install: $(obj)/Image
 109         $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 110         $(obj)/Image System.map "$(INSTALL_PATH)"
 111
 112 zinstall: $(obj)/zImage
 113         $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 114         $(obj)/zImage System.map "$(INSTALL_PATH)"
 115
 116 uinstall: $(obj)/uImage
 117         $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 118         $(obj)/uImage System.map "$(INSTALL_PATH)"
 119
 120 zi:
 121         $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 122         $(obj)/zImage System.map "$(INSTALL_PATH)"
 123
 124 i:
 125         $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 126         $(obj)/Image System.map "$(INSTALL_PATH)"
 127
 128 subdir-     := bootp compressed