xref: /openbmc/linux/arch/arm/boot/Makefile (revision 0cac60c7) 
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#
13OBJCOPYFLAGS	:=-O binary -R .comment -S
14
15#   ZRELADDR == virt_to_phys(PAGE_OFFSET + TEXT_OFFSET)
16ifdef CONFIG_PHYS_OFFSET
17add_hex = $(shell printf 0x%x $$(( $(1) + $(2) )) )
18ZRELADDR    := $(call add_hex, $(CONFIG_PHYS_OFFSET), $(TEXT_OFFSET))
19endif
20
21PHYS_OFFSET := $(CONFIG_PHYS_OFFSET)
22export ZRELADDR PARAMS_PHYS PHYS_OFFSET
23
24targets := Image zImage xipImage bootpImage uImage
25
26ifeq ($(CONFIG_XIP_KERNEL),y)
27
28cmd_deflate_xip_data = $(CONFIG_SHELL) -c \
29	'$(srctree)/$(src)/deflate_xip_data.sh $< $@'
30
31ifeq ($(CONFIG_XIP_DEFLATED_DATA),y)
32quiet_cmd_mkxip = XIPZ    $@
33cmd_mkxip = $(cmd_objcopy) && $(cmd_deflate_xip_data)
34else
35quiet_cmd_mkxip = $(quiet_cmd_objcopy)
36cmd_mkxip = $(cmd_objcopy)
37endif
38
39$(obj)/xipImage: vmlinux FORCE
40	$(call if_changed,mkxip)
41	@$(kecho) '  Physical Address of xipImage: $(CONFIG_XIP_PHYS_ADDR)'
42
43$(obj)/Image $(obj)/zImage: FORCE
44	@echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
45	@echo 'Only the xipImage target is available in this case'
46	@false
47
48else
49
50$(obj)/xipImage: FORCE
51	@echo 'Kernel not configured for XIP (CONFIG_XIP_KERNEL!=y)'
52	@false
53
54$(obj)/Image: vmlinux FORCE
55	$(call if_changed,objcopy)
56
57$(obj)/compressed/vmlinux: $(obj)/Image FORCE
58	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
59
60$(obj)/zImage:	$(obj)/compressed/vmlinux FORCE
61	$(call if_changed,objcopy)
62
63endif
64
65ifneq ($(LOADADDR),)
66  UIMAGE_LOADADDR=$(LOADADDR)
67else
68  ifeq ($(CONFIG_ZBOOT_ROM),y)
69    UIMAGE_LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
70  else
71    UIMAGE_LOADADDR=$(ZRELADDR)
72  endif
73endif
74
75check_for_multiple_loadaddr = \
76if [ $(words $(UIMAGE_LOADADDR)) -ne 1 ]; then \
77	echo 'multiple (or no) load addresses: $(UIMAGE_LOADADDR)'; \
78	echo 'This is incompatible with uImages'; \
79	echo 'Specify LOADADDR on the commandline to build an uImage'; \
80	false; \
81fi
82
83$(obj)/uImage:	$(obj)/zImage FORCE
84	@$(check_for_multiple_loadaddr)
85	$(call if_changed,uimage)
86
87$(obj)/bootp/bootp: $(obj)/zImage FORCE
88	$(Q)$(MAKE) $(build)=$(obj)/bootp $@
89
90$(obj)/bootpImage: $(obj)/bootp/bootp FORCE
91	$(call if_changed,objcopy)
92
93subdir-	    := bootp compressed dts
94