powerpc: Add early debug for WSP platforms
[linux-block.git] / arch / powerpc / boot / wrapper
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1#!/bin/sh
2
3# Copyright (C) 2006 Paul Mackerras, IBM Corporation <paulus@samba.org>
4# This program may be used under the terms of version 2 of the GNU
5# General Public License.
6
7# This script takes a kernel binary and optionally an initrd image
8# and/or a device-tree blob, and creates a bootable zImage for a
9# given platform.
10
11# Options:
12# -o zImage specify output file
13# -p platform specify platform (links in $platform.o)
14# -i initrd specify initrd file
15# -d devtree specify device-tree blob
16# -s tree.dts specify device-tree source file (needs dtc installed)
17# -c cache $kernel.strip.gz (use if present & newer, else make)
18# -C prefix specify command prefix for cross-building tools
19# (strip, objcopy, ld)
20# -D dir specify directory containing data files used by script
21# (default ./arch/powerpc/boot)
22# -W dir specify working directory for temporary files (default .)
23
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24# Stop execution if any command fails
25set -e
26
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27# Allow for verbose output
28if [ "$V" = 1 ]; then
29 set -x
30fi
31
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32# defaults
33kernel=
34ofile=zImage
35platform=of
36initrd=
37dtb=
38dts=
39cacheit=
11c146cc 40binary=
a9903811 41gzip=.gz
6975a783 42pie=
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43
44# cross-compilation prefix
45CROSS=
46
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47# mkimage wrapper script
48MKIMAGE=$srctree/scripts/mkuboot.sh
49
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50# directory for object and other files used by this script
51object=arch/powerpc/boot
5c539ee3 52objbin=$object
c79b2973 53dtc=scripts/dtc/dtc
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54
55# directory for working files
56tmpdir=.
57
58usage() {
59 echo 'Usage: wrapper [-o output] [-p platform] [-i initrd]' >&2
60 echo ' [-d devtree] [-s tree.dts] [-c] [-C cross-prefix]' >&2
a9903811 61 echo ' [-D datadir] [-W workingdir] [--no-gzip] [vmlinux]' >&2
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62 exit 1
63}
64
65while [ "$#" -gt 0 ]; do
66 case "$1" in
67 -o)
68 shift
69 [ "$#" -gt 0 ] || usage
70 ofile="$1"
71 ;;
72 -p)
73 shift
74 [ "$#" -gt 0 ] || usage
75 platform="$1"
76 ;;
77 -i)
78 shift
79 [ "$#" -gt 0 ] || usage
80 initrd="$1"
81 ;;
82 -d)
83 shift
84 [ "$#" -gt 0 ] || usage
85 dtb="$1"
86 ;;
87 -s)
88 shift
89 [ "$#" -gt 0 ] || usage
90 dts="$1"
91 ;;
92 -c)
93 cacheit=y
94 ;;
95 -C)
96 shift
97 [ "$#" -gt 0 ] || usage
98 CROSS="$1"
99 ;;
100 -D)
101 shift
102 [ "$#" -gt 0 ] || usage
103 object="$1"
5c539ee3 104 objbin="$1"
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105 ;;
106 -W)
107 shift
108 [ "$#" -gt 0 ] || usage
109 tmpdir="$1"
110 ;;
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111 --no-gzip)
112 gzip=
113 ;;
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114 -?)
115 usage
116 ;;
117 *)
118 [ -z "$kernel" ] || usage
119 kernel="$1"
120 ;;
121 esac
122 shift
123done
124
125if [ -n "$dts" ]; then
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126 if [ ! -r "$dts" -a -r "$object/dts/$dts" ]; then
127 dts="$object/dts/$dts"
128 fi
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129 if [ -z "$dtb" ]; then
130 dtb="$platform.dtb"
131 fi
c79b2973 132 $dtc -O dtb -o "$dtb" -b 0 "$dts"
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133fi
134
135if [ -z "$kernel" ]; then
136 kernel=vmlinux
137fi
138
139platformo=$object/"$platform".o
140lds=$object/zImage.lds
141ext=strip
142objflags=-S
143tmp=$tmpdir/zImage.$$.o
144ksection=.kernel:vmlinux.strip
145isection=.kernel:initrd
9b09c6d9 146link_address='0x400000'
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147
148case "$platform" in
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149pseries)
150 platformo=$object/of.o
151 link_address='0x4000000'
152 ;;
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153maple)
154 platformo=$object/of.o
155 link_address='0x400000'
156 ;;
9b09c6d9 157pmac|chrp)
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158 platformo=$object/of.o
159 ;;
627aa944 160coff)
6975a783 161 platformo="$object/crt0.o $object/of.o"
2bf11819 162 lds=$object/zImage.coff.lds
9b09c6d9 163 link_address='0x500000'
6975a783 164 pie=
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165 ;;
166miboot|uboot)
167 # miboot and U-boot want just the bare bits, not an ELF binary
168 ext=bin
169 objflags="-O binary"
170 tmp="$ofile"
171 ksection=image
172 isection=initrd
173 ;;
0fdd717e 174cuboot*)
11c146cc 175 binary=y
0fdd717e 176 gzip=
25431333 177 case "$platform" in
8dd217b2 178 *-mpc866ads|*-mpc885ads|*-adder875*|*-ep88xc)
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179 platformo=$object/cuboot-8xx.o
180 ;;
181 *5200*|*-motionpro)
182 platformo=$object/cuboot-52xx.o
183 ;;
184 *-pq2fads|*-ep8248e|*-mpc8272*|*-storcenter)
185 platformo=$object/cuboot-pq2.o
186 ;;
187 *-mpc824*)
188 platformo=$object/cuboot-824x.o
189 ;;
59d13f9d 190 *-mpc83*|*-asp834x*)
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191 platformo=$object/cuboot-83xx.o
192 ;;
ff880112 193 *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555|*-ksi8560*)
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194 platformo=$object/cuboot-85xx-cpm2.o
195 ;;
6dd1b64a 196 *-mpc85*|*-tqm85*|*-sbc85*)
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197 platformo=$object/cuboot-85xx.o
198 ;;
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199 *-amigaone)
200 link_address='0x800000'
201 ;;
25431333 202 esac
0fdd717e 203 ;;
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204ps3)
205 platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o"
206 lds=$object/zImage.ps3.lds
207 gzip=
208 ext=bin
209 objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data"
210 ksection=.kernel:vmlinux.bin
211 isection=.kernel:initrd
9b09c6d9 212 link_address=''
6975a783 213 pie=
bafdb645 214 ;;
a55387e5 215ep88xc|ep405|ep8248e)
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216 platformo="$object/fixed-head.o $object/$platform.o"
217 binary=y
218 ;;
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219adder875-redboot)
220 platformo="$object/fixed-head.o $object/redboot-8xx.o"
221 binary=y
222 ;;
d2477b5c 223simpleboot-virtex405-*)
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224 platformo="$object/virtex405-head.o $object/simpleboot.o $object/virtex.o"
225 binary=y
226 ;;
227simpleboot-virtex440-*)
a7e1cf0c 228 platformo="$object/fixed-head.o $object/simpleboot.o $object/virtex.o"
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229 binary=y
230 ;;
1d46e379 231simpleboot-*)
a7e1cf0c 232 platformo="$object/fixed-head.o $object/simpleboot.o"
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233 binary=y
234 ;;
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235asp834x-redboot)
236 platformo="$object/fixed-head.o $object/redboot-83xx.o"
237 binary=y
238 ;;
24760823
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239xpedite52*)
240 link_address='0x1400000'
241 platformo=$object/cuboot-85xx.o
242 ;;
6cdd2417 243gamecube|wii)
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244 link_address='0x600000'
245 platformo="$object/$platform-head.o $object/$platform.o"
246 ;;
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247treeboot-iss4xx-mpic)
248 platformo="$object/treeboot-iss4xx.o"
249 ;;
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250epapr)
251 link_address='0x20000000'
252 pie=-pie
253 ;;
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254esac
255
256vmz="$tmpdir/`basename \"$kernel\"`.$ext"
1383a34f 257if [ -z "$cacheit" -o ! -f "$vmz$gzip" -o "$vmz$gzip" -ot "$kernel" ]; then
2bf11819 258 ${CROSS}objcopy $objflags "$kernel" "$vmz.$$"
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259
260 if [ -n "$gzip" ]; then
261 gzip -f -9 "$vmz.$$"
262 fi
263
2bf11819 264 if [ -n "$cacheit" ]; then
a9903811 265 mv -f "$vmz.$$$gzip" "$vmz$gzip"
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266 else
267 vmz="$vmz.$$"
268 fi
269fi
270
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271vmz="$vmz$gzip"
272
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273# Extract kernel version information, some platforms want to include
274# it in the image header
275version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
276 cut -d' ' -f3`
277if [ -n "$version" ]; then
278 uboot_version="-n Linux-$version"
279fi
0fdd717e 280
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281# physical offset of kernel image
282membase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'`
283
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284case "$platform" in
285uboot)
286 rm -f "$ofile"
3f884bf5 287 ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \
a6afacb6 288 $uboot_version -d "$vmz" "$ofile"
2bf11819 289 if [ -z "$cacheit" ]; then
a9903811 290 rm -f "$vmz"
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291 fi
292 exit 0
293 ;;
294esac
295
296addsec() {
297 ${CROSS}objcopy $4 $1 \
298 --add-section=$3="$2" \
299 --set-section-flags=$3=contents,alloc,load,readonly,data
300}
301
a9903811 302addsec $tmp "$vmz" $ksection $object/empty.o
2bf11819 303if [ -z "$cacheit" ]; then
a9903811 304 rm -f "$vmz"
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305fi
306
307if [ -n "$initrd" ]; then
c888554b 308 addsec $tmp "$initrd" $isection
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309fi
310
311if [ -n "$dtb" ]; then
c888554b 312 addsec $tmp "$dtb" .kernel:dtb
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313 if [ -n "$dts" ]; then
314 rm $dtb
315 fi
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316fi
317
318if [ "$platform" != "miboot" ]; then
9b09c6d9 319 if [ -n "$link_address" ] ; then
6975a783 320 text_start="-Ttext $link_address"
9b09c6d9 321 fi
6975a783 322 ${CROSS}ld -m elf32ppc -T $lds $text_start $pie -o "$ofile" \
cd197ffc 323 $platformo $tmp $object/wrapper.a
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324 rm $tmp
325fi
326
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327# Some platforms need the zImage's entry point and base address
328base=0x`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1`
329entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | cut -d' ' -f3`
330
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331if [ -n "$binary" ]; then
332 mv "$ofile" "$ofile".elf
aeb4552f 333 ${CROSS}objcopy -O binary "$ofile".elf "$ofile"
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334fi
335
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336# post-processing needed for some platforms
337case "$platform" in
58706ef9 338pseries|chrp|maple)
5663a123 339 $objbin/addnote "$ofile"
0dcd4401 340 ;;
627aa944 341coff)
cd197ffc 342 ${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile"
5c539ee3 343 $objbin/hack-coff "$ofile"
2bf11819 344 ;;
0fdd717e 345cuboot*)
aeb4552f 346 gzip -f -9 "$ofile"
3f884bf5 347 ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \
aeb4552f 348 $uboot_version -d "$ofile".gz "$ofile"
0fdd717e 349 ;;
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350treeboot*)
351 mv "$ofile" "$ofile.elf"
5c539ee3 352 $objbin/mktree "$ofile.elf" "$ofile" "$base" "$entry"
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353 if [ -z "$cacheit" ]; then
354 rm -f "$ofile.elf"
355 fi
356 exit 0
357 ;;
bafdb645 358ps3)
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359 # The ps3's loader supports loading a gzipped binary image from flash
360 # rom to ram addr zero. The loader then enters the system reset
361 # vector at addr 0x100. A bootwrapper overlay is used to arrange for
362 # a binary image of the kernel to be at addr zero, and yet have a
363 # suitable bootwrapper entry at 0x100. To construct the final rom
364 # image 512 bytes from offset 0x100 is copied to the bootwrapper
365 # place holder at symbol __system_reset_kernel. The 512 bytes of the
366 # bootwrapper entry code at symbol __system_reset_overlay is then
367 # copied to offset 0x100. At runtime the bootwrapper program copies
368 # the data at __system_reset_kernel back to addr 0x100.
bafdb645 369
aeb4552f 370 system_reset_overlay=0x`${CROSS}nm "$ofile" \
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371 | grep ' __system_reset_overlay$' \
372 | cut -d' ' -f1`
373 system_reset_overlay=`printf "%d" $system_reset_overlay`
aeb4552f 374 system_reset_kernel=0x`${CROSS}nm "$ofile" \
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375 | grep ' __system_reset_kernel$' \
376 | cut -d' ' -f1`
377 system_reset_kernel=`printf "%d" $system_reset_kernel`
378 overlay_dest="256"
5761eaa3 379 overlay_size="512"
bafdb645 380
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381 ${CROSS}objcopy -O binary "$ofile" "$ofile.bin"
382
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383 dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
384 skip=$overlay_dest seek=$system_reset_kernel \
385 count=$overlay_size bs=1
bafdb645 386
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387 dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
388 skip=$system_reset_overlay seek=$overlay_dest \
389 count=$overlay_size bs=1
bafdb645 390
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391 odir="$(dirname "$ofile.bin")"
392 rm -f "$odir/otheros.bld"
393 gzip --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld"
bafdb645 394 ;;
2bf11819 395esac