1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
|
# This is far from simple, but I couldn't think of a good name. This is
# for making the 'zImage' or 'zImage.initrd' on a number of targets.
#
# Author: Tom Rini <trini@mvista.com>
#
# Notes:
# (1) For machines that do not want to use the ELF image directly (including
# stripping just the ELF header off), they must set the variables
# zimage-$(CONFIG_MACHINE) and zimagerd-$(CONFIG_MACHINE) to the target
# that produces the desired image and they must set end-$(CONFIG_MACHINE)
# to what will be suffixed to the image filename.
# (2) Regardless of (1), to have the resulting image be something other
# than 'zImage.elf', set end-$(CONFIG_MACHINE) to be the suffix used for
# the zImage, znetboot, and znetbootrd targets.
# (3) For machine targets which use the mktree program, you can optionally
# set entrypoint-$(CONFIG_MACHINE) to the location which the image should be
# loaded at. The optimal setting for entrypoint-$(CONFIG_MACHINE) is the link
# address.
# (4) It is advisable to pass in the memory size using BI_MEMSIZE and
# get_mem_size(), which is memory controller dependent. Add in the correct
# XXX_memory.o file for this to work, as well as editing the
# misc-$(CONFIG_MACHINE) variable.
boot := arch/ppc/boot
common := $(boot)/common
utils := $(boot)/utils
bootlib := $(boot)/lib
images := $(boot)/images
of1275 := $(boot)/of1275
tftpboot := /tftpboot
# Normally, we use the 'misc.c' file for decompress_kernel and
# whatnot. Sometimes we need to override this however.
misc-y := misc.o
# Normally, we have our images end in .elf, but something we want to
# change this.
end-y := elf
# Additionally, we normally don't need to mess with the L2 / L3 caches
# if present on 'classic' PPC.
cacheflag-y := -DCLEAR_CACHES=""
# This file will flush / disable the L2, and L3 if present.
clear_L2_L3 := $(srctree)/$(boot)/simple/clear.S
#
# See arch/ppc/kconfig and arch/ppc/platforms/Kconfig
# for definition of what platform each config option refer to.
#----------------------------------------------------------------------------
zimage-$(CONFIG_CPCI690) := zImage-STRIPELF
zimageinitrd-$(CONFIG_CPCI690) := zImage.initrd-STRIPELF
extra.o-$(CONFIG_CPCI690) := misc-cpci690.o
end-$(CONFIG_CPCI690) := cpci690
cacheflag-$(CONFIG_CPCI690) := -include $(clear_L2_L3)
zimage-$(CONFIG_IBM_OPENBIOS) := zImage-TREE
zimageinitrd-$(CONFIG_IBM_OPENBIOS) := zImage.initrd-TREE
end-$(CONFIG_IBM_OPENBIOS) := treeboot
misc-$(CONFIG_IBM_OPENBIOS) := misc-embedded.o
end-$(CONFIG_EMBEDDEDBOOT) := embedded
misc-$(CONFIG_EMBEDDEDBOOT) := misc-embedded.o
zimage-$(CONFIG_BAMBOO) := zImage-TREE
zimageinitrd-$(CONFIG_BAMBOO) := zImage.initrd-TREE
end-$(CONFIG_BAMBOO) := bamboo
entrypoint-$(CONFIG_BAMBOO) := 0x01000000
extra.o-$(CONFIG_BAMBOO) := pibs.o
zimage-$(CONFIG_BUBINGA) := zImage-TREE
zimageinitrd-$(CONFIG_BUBINGA) := zImage.initrd-TREE
end-$(CONFIG_BUBINGA) := bubinga
entrypoint-$(CONFIG_BUBINGA) := 0x01000000
extra.o-$(CONFIG_BUBINGA) := openbios.o
zimage-$(CONFIG_EBONY) := zImage-TREE
zimageinitrd-$(CONFIG_EBONY) := zImage.initrd-TREE
end-$(CONFIG_EBONY) := ebony
entrypoint-$(CONFIG_EBONY) := 0x01000000
extra.o-$(CONFIG_EBONY) := openbios.o
zimage-$(CONFIG_LUAN) := zImage-TREE
zimageinitrd-$(CONFIG_LUAN) := zImage.initrd-TREE
end-$(CONFIG_LUAN) := luan
entrypoint-$(CONFIG_LUAN) := 0x01000000
extra.o-$(CONFIG_LUAN) := pibs.o
zimage-$(CONFIG_YUCCA) := zImage-TREE
zimageinitrd-$(CONFIG_YUCCA) := zImage.initrd-TREE
end-$(CONFIG_YUCCA) := yucca
entrypoint-$(CONFIG_YUCCA) := 0x01000000
extra.o-$(CONFIG_YUCCA) := pibs.o
zimage-$(CONFIG_OCOTEA) := zImage-TREE
zimageinitrd-$(CONFIG_OCOTEA) := zImage.initrd-TREE
end-$(CONFIG_OCOTEA) := ocotea
entrypoint-$(CONFIG_OCOTEA) := 0x01000000
extra.o-$(CONFIG_OCOTEA) := pibs.o
zimage-$(CONFIG_SYCAMORE) := zImage-TREE
zimageinitrd-$(CONFIG_SYCAMORE) := zImage.initrd-TREE
end-$(CONFIG_SYCAMORE) := sycamore
entrypoint-$(CONFIG_SYCAMORE) := 0x01000000
extra.o-$(CONFIG_SYCAMORE) := openbios.o
zimage-$(CONFIG_WALNUT) := zImage-TREE
zimageinitrd-$(CONFIG_WALNUT) := zImage.initrd-TREE
end-$(CONFIG_WALNUT) := walnut
entrypoint-$(CONFIG_WALNUT) := 0x01000000
extra.o-$(CONFIG_WALNUT) := openbios.o
extra.o-$(CONFIG_EV64260) := misc-ev64260.o
end-$(CONFIG_EV64260) := ev64260
cacheflag-$(CONFIG_EV64260) := -include $(clear_L2_L3)
extra.o-$(CONFIG_CHESTNUT) := misc-chestnut.o
end-$(CONFIG_CHESTNUT) := chestnut
zimage-$(CONFIG_GEMINI) := zImage-STRIPELF
zimageinitrd-$(CONFIG_GEMINI) := zImage.initrd-STRIPELF
end-$(CONFIG_GEMINI) := gemini
extra.o-$(CONFIG_KATANA) := misc-katana.o
end-$(CONFIG_KATANA) := katana
cacheflag-$(CONFIG_KATANA) := -include $(clear_L2_L3)
extra.o-$(CONFIG_RADSTONE_PPC7D) := misc-radstone_ppc7d.o
end-$(CONFIG_RADSTONE_PPC7D) := radstone_ppc7d
cacheflag-$(CONFIG_RADSTONE_PPC7D) := -include $(clear_L2_L3)
extra.o-$(CONFIG_EV64360) := misc-ev64360.o
end-$(CONFIG_EV64360) := ev64360
cacheflag-$(CONFIG_EV64360) := -include $(clear_L2_L3)
# kconfig 'feature', only one of these will ever be 'y' at a time.
# The rest will be unset.
motorola := $(CONFIG_MVME5100)$(CONFIG_PRPMC750) \
$(CONFIG_PRPMC800)$(CONFIG_LOPEC)$(CONFIG_PPLUS)
motorola := $(strip $(motorola))
zimage-$(motorola) := zImage-PPLUS
zimageinitrd-$(motorola) := zImage.initrd-PPLUS
end-$(motorola) := pplus
# Overrides previous assingment
extra.o-$(CONFIG_PPLUS) := prepmap.o
extra.o-$(CONFIG_LOPEC) := mpc10x_memory.o
# Really only valid if CONFIG_6xx=y
zimage-$(CONFIG_PPC_PREP) := zImage-PPLUS
zimageinitrd-$(CONFIG_PPC_PREP) := zImage.initrd-PPLUS
ifeq ($(CONFIG_6xx),y)
extra.o-$(CONFIG_PPC_PREP) := prepmap.o
misc-$(CONFIG_PPC_PREP) += misc-prep.o mpc10x_memory.o
endif
end-$(CONFIG_PPC_PREP) := prep
end-$(CONFIG_SANDPOINT) := sandpoint
cacheflag-$(CONFIG_SANDPOINT) := -include $(clear_L2_L3)
zimage-$(CONFIG_SPRUCE) := zImage-TREE
zimageinitrd-$(CONFIG_SPRUCE) := zImage.initrd-TREE
end-$(CONFIG_SPRUCE) := spruce
entrypoint-$(CONFIG_SPRUCE) := 0x00800000
misc-$(CONFIG_SPRUCE) += misc-spruce.o
zimage-$(CONFIG_LITE5200) := zImage-STRIPELF
zimageinitrd-$(CONFIG_LITE5200) := zImage.initrd-STRIPELF
end-$(CONFIG_LITE5200) := lite5200
cacheflag-$(CONFIG_LITE5200) := -include $(clear_L2_L3)
# SMP images should have a '.smp' suffix.
end-$(CONFIG_SMP) := $(end-y).smp
# This is a treeboot that needs init functions until the
# boot rom is sorted out (i.e. this is short lived)
EXTRA_AFLAGS := $(extra-aflags-y)
# head.o needs to get the cacheflags defined.
AFLAGS_head.o += $(cacheflag-y)
# Linker args. This specifies where the image will be run at.
LD_ARGS := -T $(srctree)/$(boot)/ld.script \
-Ttext $(CONFIG_BOOT_LOAD) -Bstatic
OBJCOPY_ARGS := -O elf32-powerpc
# head.o and relocate.o must be at the start.
boot-y := head.o relocate.o $(extra.o-y) $(misc-y)
boot-$(CONFIG_REDWOOD_5) += embed_config.o
boot-$(CONFIG_REDWOOD_6) += embed_config.o
boot-$(CONFIG_8xx) += embed_config.o
boot-$(CONFIG_8260) += embed_config.o
boot-$(CONFIG_BSEIP) += iic.o
boot-$(CONFIG_MBX) += iic.o pci.o qspan_pci.o
boot-$(CONFIG_MV64X60) += misc-mv64x60.o
boot-$(CONFIG_RPXCLASSIC) += iic.o pci.o qspan_pci.o
boot-$(CONFIG_RPXLITE) += iic.o
# Different boards need different serial implementations.
ifeq ($(CONFIG_SERIAL_CPM_CONSOLE),y)
boot-$(CONFIG_8xx) += m8xx_tty.o
boot-$(CONFIG_8260) += m8260_tty.o
endif
boot-$(CONFIG_SERIAL_MPC52xx_CONSOLE) += mpc52xx_tty.o
boot-$(CONFIG_SERIAL_MPSC_CONSOLE) += mv64x60_tty.o
LIBS := $(common)/lib.a $(bootlib)/lib.a
ifeq ($(CONFIG_PPC_PREP),y)
LIBS += $(of1275)/lib.a
endif
OBJS := $(addprefix $(obj)/,$(boot-y))
# Tools
MKBUGBOOT := $(utils)/mkbugboot
MKPREP := $(utils)/mkprep
MKTREE := $(utils)/mktree
targets := dummy.o
$(obj)/zvmlinux: $(OBJS) $(LIBS) $(srctree)/$(boot)/ld.script \
$(images)/vmlinux.gz $(obj)/dummy.o
$(OBJCOPY) $(OBJCOPY_ARGS) \
--add-section=.image=$(images)/vmlinux.gz \
--set-section-flags=.image=contents,alloc,load,readonly,data \
$(obj)/dummy.o $(obj)/image.o
$(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/image.o $(LIBS)
$(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab \
-R .stabstr -R .ramdisk
$(obj)/zvmlinux.initrd: $(OBJS) $(LIBS) $(srctree)/$(boot)/ld.script \
$(images)/vmlinux.gz $(obj)/dummy.o
$(OBJCOPY) $(OBJCOPY_ARGS) \
--add-section=.ramdisk=$(images)/ramdisk.image.gz \
--set-section-flags=.ramdisk=contents,alloc,load,readonly,data \
--add-section=.image=$(images)/vmlinux.gz \
--set-section-flags=.image=contents,alloc,load,readonly,data \
$(obj)/dummy.o $(obj)/image.o
$(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/image.o $(LIBS)
$(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab \
-R .stabstr
# Sort-of dummy rules, that let us format the image we want.
zImage: $(images)/$(zimage-y) $(obj)/zvmlinux
cp -f $(obj)/zvmlinux $(images)/zImage.elf
rm -f $(obj)/zvmlinux
zImage.initrd: $(images)/$(zimageinitrd-y) $(obj)/zvmlinux.initrd
cp -f $(obj)/zvmlinux.initrd $(images)/zImage.initrd.elf
rm -f $(obj)/zvmlinux.initrd
znetboot: zImage
cp $(images)/zImage.$(end-y) $(tftpboot)/zImage.$(end-y)
znetboot.initrd: zImage.initrd
cp $(images)/zImage.initrd.$(end-y) $(tftpboot)/zImage.initrd.$(end-y)
$(images)/zImage-STRIPELF: $(obj)/zvmlinux
dd if=$(obj)/zvmlinux of=$(images)/zImage.$(end-y) skip=64 bs=1k
$(images)/zImage.initrd-STRIPELF: $(obj)/zvmlinux.initrd
dd if=$(obj)/zvmlinux.initrd of=$(images)/zImage.initrd.$(end-y) \
skip=64 bs=1k
$(images)/zImage-TREE: $(obj)/zvmlinux $(MKTREE)
$(MKTREE) $(obj)/zvmlinux $(images)/zImage.$(end-y) $(entrypoint-y)
$(images)/zImage.initrd-TREE: $(obj)/zvmlinux.initrd $(MKTREE)
$(MKTREE) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(end-y) \
$(entrypoint-y)
$(images)/zImage-PPLUS: $(obj)/zvmlinux $(MKPREP) $(MKBUGBOOT)
$(MKPREP) -pbp $(obj)/zvmlinux $(images)/zImage.$(end-y)
$(MKBUGBOOT) $(obj)/zvmlinux $(images)/zImage.bugboot
$(images)/zImage.initrd-PPLUS: $(obj)/zvmlinux.initrd $(MKPREP) $(MKBUGBOOT)
$(MKPREP) -pbp $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(end-y)
$(MKBUGBOOT) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.bugboot
|
