xref: /openbmc/linux/arch/arm/boot/Makefile (revision 87c2ce3b) 
1#
2# arch/arm/boot/Makefile
3#
4# This file is subject to the terms and conditions of the GNU General Public
5# License.  See the file "COPYING" in the main directory of this archive
6# for more details.
7#
8# Copyright (C) 1995-2002 Russell King
9#
10
11MKIMAGE         := $(srctree)/scripts/mkuboot.sh
12
13ifneq ($(MACHINE),)
14include $(srctree)/$(MACHINE)/Makefile.boot
15endif
16
17# Note: the following conditions must always be true:
18#   ZRELADDR == virt_to_phys(PAGE_OFFSET + TEXT_OFFSET)
19#   PARAMS_PHYS must be within 4MB of ZRELADDR
20#   INITRD_PHYS must be in RAM
21ZRELADDR    := $(zreladdr-y)
22PARAMS_PHYS := $(params_phys-y)
23INITRD_PHYS := $(initrd_phys-y)
24
25export ZRELADDR INITRD_PHYS PARAMS_PHYS
26
27targets := Image zImage xipImage bootpImage uImage
28
29ifeq ($(CONFIG_XIP_KERNEL),y)
30
31$(obj)/xipImage: vmlinux FORCE
32	$(call if_changed,objcopy)
33	@echo '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
34
35$(obj)/Image $(obj)/zImage: FORCE
36	@echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
37	@echo 'Only the xipImage target is available in this case'
38	@false
39
40else
41
42$(obj)/xipImage: FORCE
43	@echo 'Kernel not configured for XIP (CONFIG_XIP_KERNEL!=y)'
44	@false
45
46$(obj)/Image: vmlinux FORCE
47	$(call if_changed,objcopy)
48	@echo '  Kernel: $@ is ready'
49
50$(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	@echo '  Kernel: $@ is ready'
56
57endif
58
59quiet_cmd_uimage = UIMAGE  $@
60      cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \
61		   -C none -a $(ZRELADDR) -e $(ZRELADDR) \
62		   -n 'Linux-$(KERNELRELEASE)' -d $< $@
63
64$(obj)/uImage:	$(obj)/zImage FORCE
65	$(call if_changed,uimage)
66	@echo '  Image $@ is ready'
67
68$(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
69	$(Q)$(MAKE) $(build)=$(obj)/bootp $@
70	@:
71
72$(obj)/bootpImage: $(obj)/bootp/bootp FORCE
73	$(call if_changed,objcopy)
74	@echo '  Kernel: $@ is ready'
75
76.PHONY: initrd FORCE
77initrd:
78	@test "$(INITRD_PHYS)" != "" || \
79	(echo This machine does not support INITRD; exit -1)
80	@test "$(INITRD)" != "" || \
81	(echo You must specify INITRD; exit -1)
82
83install: $(obj)/Image
84	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
85	$(obj)/Image System.map "$(INSTALL_PATH)"
86
87zinstall: $(obj)/zImage
88	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
89	$(obj)/zImage System.map "$(INSTALL_PATH)"
90
91subdir-	    := bootp compressed
92