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 MKIMAGE         := $(srctree)/scripts/mkuboot.sh
  15
  16 ifneq ($(MACHINE),)
  17 include $(srctree)/$(MACHINE)/Makefile.boot
  18 endif
  19
  20 # Note: the following conditions must always be true:
  21 #   ZRELADDR == virt_to_phys(PAGE_OFFSET + TEXT_OFFSET)
  22 #   PARAMS_PHYS must be within 4MB of ZRELADDR
  23 #   INITRD_PHYS must be in RAM
  24 ZRELADDR    := $(zreladdr-y)
  25 PARAMS_PHYS := $(params_phys-y)
  26 INITRD_PHYS := $(initrd_phys-y)
  27
  28 export ZRELADDR INITRD_PHYS PARAMS_PHYS
  29
  30 targets := Image zImage xipImage bootpImage uImage
  31
  32 ifeq ($(CONFIG_XIP_KERNEL),y)
  33
  34 $(obj)/xipImage: vmlinux FORCE
  35         $(call if_changed,objcopy)
  36         @echo '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
  37
  38 $(obj)/Image $(obj)/zImage: FORCE
  39         @echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
  40         @echo 'Only the xipImage target is available in this case'
  41         @false
  42
  43 else
  44
  45 $(obj)/xipImage: FORCE
  46         @echo 'Kernel not configured for XIP (CONFIG_XIP_KERNEL!=y)'
  47         @false
  48
  49 $(obj)/Image: vmlinux FORCE
  50         $(call if_changed,objcopy)
  51         @echo '  Kernel: $@ is ready'
  52
  53 $(obj)/compressed/vmlinux: $(obj)/Image FORCE
  54         $(Q)$(MAKE) $(build)=$(obj)/compressed $@
  55
  56 $(obj)/zImage:  $(obj)/compressed/vmlinux FORCE
  57         $(call if_changed,objcopy)
  58         @echo '  Kernel: $@ is ready'
  59
  60 endif
  61
  62 # Rule to build device tree blobs
  63 $(obj)/%.dtb: $(src)/dts/%.dts
  64         $(call cmd,dtc)
  65
  66 $(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y))
  67
  68 quiet_cmd_uimage = UIMAGE  $@
  69       cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \
  70                    -C none -a $(LOADADDR) -e $(STARTADDR) \
  71                    -n 'Linux-$(KERNELRELEASE)' -d $< $@
  72
  73 ifeq ($(CONFIG_ZBOOT_ROM),y)
  74 $(obj)/uImage: LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
  75 else
  76 $(obj)/uImage: LOADADDR=$(ZRELADDR)
  77 endif
  78
  79 $(obj)/uImage: STARTADDR=$(LOADADDR)
  80
  81 check_for_multiple_loadaddr = \
  82 if [ $(words $(LOADADDR)) -gt 1 ]; then \
  83         echo 'multiple load addresses: $(LOADADDR)'; \
  84         echo 'This is incompatible with uImages'; \
  85         echo 'Specify LOADADDR on the commandline to build an uImage'; \
  86         false; \
  87 fi
  88
  89 $(obj)/uImage:  $(obj)/zImage FORCE
  90         @$(check_for_multiple_loadaddr)
  91         $(call if_changed,uimage)
  92         @echo '  Image $@ is ready'
  93
  94 $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
  95         $(Q)$(MAKE) $(build)=$(obj)/bootp $@
  96         @:
  97
  98 $(obj)/bootpImage: $(obj)/bootp/bootp FORCE
  99         $(call if_changed,objcopy)
 100         @echo '  Kernel: $@ is ready'
 101
 102 PHONY += initrd FORCE
 103 initrd:
 104         @test "$(INITRD_PHYS)" != "" || \
 105         (echo This machine does not support INITRD; exit -1)
 106         @test "$(INITRD)" != "" || \
 107         (echo You must specify INITRD; exit -1)
 108
 109 install: $(obj)/Image
 110         $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 111         $(obj)/Image System.map "$(INSTALL_PATH)"
 112
 113 zinstall: $(obj)/zImage
 114         $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 115         $(obj)/zImage System.map "$(INSTALL_PATH)"
 116
 117 uinstall: $(obj)/uImage
 118         $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 119         $(obj)/uImage System.map "$(INSTALL_PATH)"
 120
 121 zi:
 122         $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 123         $(obj)/zImage System.map "$(INSTALL_PATH)"
 124
 125 i:
 126         $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
 127         $(obj)/Image System.map "$(INSTALL_PATH)"
 128
 129 subdir-     := bootp compressed