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Source at commit f104603657789697c8f9ca612a76c003cad41d6a created 13 years 3 months ago. By Xiangfu Liu, automatic create /dev/rtc | |
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1 | #!/usr/bin/perl |
2 | # |
3 | # Copyright (C) 2009 Henk Vergonet <Henk.Vergonet@gmail.com> |
4 | # |
5 | # This program is free software; you can redistribute it and/or modify |
6 | # it under the terms of the GNU General Public License as published by |
7 | # the Free Software Foundation; either version 2 of the License, or |
8 | # (at your option) any later version. |
9 | # |
10 | # This program is distributed in the hope that it will be useful, |
11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | # GNU General Public License for more details. |
14 | # |
15 | # You should have received a copy of the GNU General Public License |
16 | # along with this program; if not, write to the Free Software |
17 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
18 | # |
19 | |
20 | # Description: |
21 | # Replacement for brcmImagebuilder |
22 | # |
23 | # Disclaimer: |
24 | # Use this software at your own risk. |
25 | # |
26 | # Changelog: |
27 | # 2009-01-01 Henk.Vergonet at gmail.com |
28 | # |
29 | use strict; |
30 | use Getopt::Std; |
31 | use Compress::Zlib; |
32 | |
33 | my $version = "0.1"; |
34 | my %arg = ( |
35 | o => 'bcm963xx_fs_kernel', |
36 | b => 'OpenWrt', |
37 | c => '6348', |
38 | s => 64, |
39 | f => 0xbfc00000, |
40 | x => 0x00010000, |
41 | a => 0x80010000, |
42 | e => 0x80010000, |
43 | i => 2, |
44 | ); |
45 | my $prog = $0; |
46 | $prog =~ s/^.*\///; |
47 | getopts("r:k:o:lc:b:s:f:i:a:e:tpvh", \%arg); |
48 | |
49 | die "usage: $prog ~opts~ |
50 | |
51 | -r <file> : input rootfs file |
52 | -k <file> : input kernel file |
53 | -o <file> : output image file, default $arg{o} |
54 | -l : littleendian system, default ".($arg{l} ? 'yes' : 'no')." |
55 | -c <chipid> : default $arg{c} |
56 | -b <boardid> : default $arg{b} |
57 | -s <size_kb> : erase sise flash, default $arg{s} |
58 | -f <baseaddr> : flash base, default ".sprintf('0x%x', $arg{f})." |
59 | -x <cfelen> : length of cfe, default ".sprintf('0x%x', $arg{x})." |
60 | -i : 2=dual image, default $arg{i} |
61 | |
62 | -a <loadaddr> : Kernel load address, default ".sprintf('0x%x', $arg{a})." |
63 | -e <entryaddr>: Kernel entry address, default ".sprintf('0x%x', $arg{e})." |
64 | -t : Prefix kernel with load,entry,size |
65 | |
66 | -p : Add a 'gOtO' partition |
67 | |
68 | -v : be more verbose |
69 | -h : help, version $version |
70 | |
71 | EXAMPLES: |
72 | $prog -k kern -r rootfs |
73 | " if $arg{h} || !$arg{k} || !$arg{r}; |
74 | |
75 | sub Read_Image |
76 | { |
77 | open my $fh, $_[0] or die "open $_[0]: $!"; |
78 | local $/; # Set input to "slurp" mode. |
79 | my $buf = <$fh>; |
80 | close $fh; |
81 | return $buf; |
82 | } |
83 | |
84 | sub Padlen |
85 | { |
86 | my $p = $_[0] % $_[1]; |
87 | return ($p ? $_[1] - $p : 0); |
88 | } |
89 | |
90 | sub Pad |
91 | { |
92 | my ($buf, $off, $bs) = @_[0..2]; |
93 | $buf .= chr(255) x Padlen(length($buf) + $off, $bs); |
94 | return $buf; |
95 | } |
96 | |
97 | sub bcmImage |
98 | { |
99 | my ($k, $f) = @_[0..1]; |
100 | my $tmp = $arg{x} + 0x100 + $arg{f}; |
101 | |
102 | # regular: rootfs+kernel |
103 | my ($img, $fa, $ka) = ( $f.$k, $tmp, $tmp + length($f) ); |
104 | |
105 | # test: kernel+rootfs |
106 | # my ($img, $fa, $ka) = ( $k.$f, $tmp + length($k), $tmp ); |
107 | |
108 | $fa = 0 unless length($f); |
109 | |
110 | my $hdr = pack("a4a20a14a6a16a2a10a12a10a12a10a12a10a2a2a74Na16", |
111 | '6', |
112 | 'LinuxInside', |
113 | 'ver. 2.0', |
114 | $arg{c}, |
115 | $arg{b}, |
116 | ($arg{l} ? '0' : '1'), |
117 | length($img), |
118 | '0', |
119 | '0', |
120 | $fa, |
121 | length($f), |
122 | $ka, |
123 | length($k), |
124 | ($arg{i}==2 ? '1' : '0'), |
125 | '', # if 1, the image is INACTIVE; if 0, active |
126 | '', |
127 | ~crc32($k, crc32($f)), |
128 | ''); |
129 | $hdr .= pack('Na16', ~crc32($hdr), ''); |
130 | |
131 | printf "kernel at 0x%x length 0x%x(%u)\n", $ka, length($k), length($k) |
132 | if $arg{v}; |
133 | printf "rootfs at 0x%x length 0x%x(%u)\n", $fa, length($f), length($f) |
134 | if $arg{v}; |
135 | |
136 | open(FO, ">$arg{o}"); |
137 | print FO $hdr; |
138 | print FO $img; |
139 | close FO; |
140 | } |
141 | |
142 | # MAIN |
143 | |
144 | my $kern = Read_Image $arg{k}; |
145 | my $root = Read_Image $arg{r}; |
146 | |
147 | $kern = pack('NNN', $arg{a}, $arg{e}, length($kern)).$kern if $arg{t}; |
148 | |
149 | # specific fixup for the CFE that expects rootfs-kernel order |
150 | if ($arg{p}) { |
151 | $kern = Pad($kern, 0x10c, $arg{s} * 1024); |
152 | my $dummy_root = pack('a4NN', |
153 | 'gOtO', |
154 | length($kern)+12, |
155 | length($root)+Padlen(length($root), $arg{s} * 1024) |
156 | ); |
157 | $kern .= $root; |
158 | $root = $dummy_root; |
159 | } |
160 | |
161 | bcmImage($kern, $root); |
162 | |
163 |