xref: /openbmc/linux/arch/arm/boot/Makefile (revision 74ce1896)
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
14OBJCOPYFLAGS	:=-O binary -R .comment -S
15
16ifneq ($(MACHINE),)
17include $(MACHINE)/Makefile.boot
18endif
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
24ZRELADDR    := $(zreladdr-y)
25PARAMS_PHYS := $(params_phys-y)
26INITRD_PHYS := $(initrd_phys-y)
27
28export ZRELADDR INITRD_PHYS PARAMS_PHYS
29
30targets := Image zImage xipImage bootpImage uImage
31
32ifeq ($(CONFIG_XIP_KERNEL),y)
33
34$(obj)/xipImage: vmlinux FORCE
35	$(call if_changed,objcopy)
36	@$(kecho) '  Physical Address of xipImage: $(CONFIG_XIP_PHYS_ADDR)'
37
38$(obj)/Image $(obj)/zImage: FORCE
39	@echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
40	@echo 'Only the xipImage target is available in this case'
41	@false
42
43else
44
45$(obj)/xipImage: FORCE
46	@echo 'Kernel not configured for XIP (CONFIG_XIP_KERNEL!=y)'
47	@false
48
49$(obj)/Image: vmlinux FORCE
50	$(call if_changed,objcopy)
51
52$(obj)/compressed/vmlinux: $(obj)/Image FORCE
53	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
54
55$(obj)/zImage:	$(obj)/compressed/vmlinux FORCE
56	$(call if_changed,objcopy)
57
58endif
59
60ifneq ($(LOADADDR),)
61  UIMAGE_LOADADDR=$(LOADADDR)
62else
63  ifeq ($(CONFIG_ZBOOT_ROM),y)
64    UIMAGE_LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
65  else
66    UIMAGE_LOADADDR=$(ZRELADDR)
67  endif
68endif
69
70check_for_multiple_loadaddr = \
71if [ $(words $(UIMAGE_LOADADDR)) -ne 1 ]; then \
72	echo 'multiple (or no) load addresses: $(UIMAGE_LOADADDR)'; \
73	echo 'This is incompatible with uImages'; \
74	echo 'Specify LOADADDR on the commandline to build an uImage'; \
75	false; \
76fi
77
78$(obj)/uImage:	$(obj)/zImage FORCE
79	@$(check_for_multiple_loadaddr)
80	$(call if_changed,uimage)
81
82$(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
83	$(Q)$(MAKE) $(build)=$(obj)/bootp $@
84
85$(obj)/bootpImage: $(obj)/bootp/bootp FORCE
86	$(call if_changed,objcopy)
87
88PHONY += initrd install zinstall uinstall
89initrd:
90	@test "$(INITRD_PHYS)" != "" || \
91	(echo This machine does not support INITRD; exit -1)
92	@test "$(INITRD)" != "" || \
93	(echo You must specify INITRD; exit -1)
94
95install:
96	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
97	$(obj)/Image System.map "$(INSTALL_PATH)"
98
99zinstall:
100	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
101	$(obj)/zImage System.map "$(INSTALL_PATH)"
102
103uinstall:
104	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
105	$(obj)/uImage System.map "$(INSTALL_PATH)"
106
107subdir-	    := bootp compressed dts
108