xref: /openbmc/linux/arch/arm/boot/Makefile (revision fc56da79)
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
14ifneq ($(MACHINE),)
15include $(MACHINE)/Makefile.boot
16endif
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
22ZRELADDR    := $(zreladdr-y)
23PARAMS_PHYS := $(params_phys-y)
24INITRD_PHYS := $(initrd_phys-y)
25
26export ZRELADDR INITRD_PHYS PARAMS_PHYS
27
28targets := Image zImage xipImage bootpImage uImage
29
30ifeq ($(CONFIG_XIP_KERNEL),y)
31
32$(obj)/xipImage: vmlinux FORCE
33	$(call if_changed,objcopy)
34	@$(kecho) '  Physical Address of xipImage: $(CONFIG_XIP_PHYS_ADDR)'
35
36$(obj)/Image $(obj)/zImage: FORCE
37	@echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
38	@echo 'Only the xipImage target is available in this case'
39	@false
40
41else
42
43$(obj)/xipImage: FORCE
44	@echo 'Kernel not configured for XIP (CONFIG_XIP_KERNEL!=y)'
45	@false
46
47$(obj)/Image: vmlinux FORCE
48	$(call if_changed,objcopy)
49
50$(obj)/compressed/vmlinux: $(obj)/Image FORCE
51	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
52
53$(obj)/zImage:	$(obj)/compressed/vmlinux FORCE
54	$(call if_changed,objcopy)
55
56endif
57
58ifneq ($(LOADADDR),)
59  UIMAGE_LOADADDR=$(LOADADDR)
60else
61  ifeq ($(CONFIG_ZBOOT_ROM),y)
62    UIMAGE_LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
63  else
64    UIMAGE_LOADADDR=$(ZRELADDR)
65  endif
66endif
67
68check_for_multiple_loadaddr = \
69if [ $(words $(UIMAGE_LOADADDR)) -ne 1 ]; then \
70	echo 'multiple (or no) load addresses: $(UIMAGE_LOADADDR)'; \
71	echo 'This is incompatible with uImages'; \
72	echo 'Specify LOADADDR on the commandline to build an uImage'; \
73	false; \
74fi
75
76$(obj)/uImage:	$(obj)/zImage FORCE
77	@$(check_for_multiple_loadaddr)
78	$(call if_changed,uimage)
79
80$(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
81	$(Q)$(MAKE) $(build)=$(obj)/bootp $@
82
83$(obj)/bootpImage: $(obj)/bootp/bootp FORCE
84	$(call if_changed,objcopy)
85
86PHONY += initrd install zinstall uinstall
87initrd:
88	@test "$(INITRD_PHYS)" != "" || \
89	(echo This machine does not support INITRD; exit -1)
90	@test "$(INITRD)" != "" || \
91	(echo You must specify INITRD; exit -1)
92
93install:
94	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
95	$(obj)/Image System.map "$(INSTALL_PATH)"
96
97zinstall:
98	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
99	$(obj)/zImage System.map "$(INSTALL_PATH)"
100
101uinstall:
102	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
103	$(obj)/uImage System.map "$(INSTALL_PATH)"
104
105subdir-	    := bootp compressed dts
106