#!/usr/bin/env python

"""
   Create firmware for 8MB Bifferboards
   Firmware does not include the config blocks
   Firmware starts just after config
"""

import struct, sys

kernel_extent = 0x200000
config = 0x6000

if __name__ == "__main__":

  if len(sys.argv) != 4:
    print  "usage: mkimg_bifferboard.py <kernel> <64k JFFS> <output file>"
    sys.exit(0)
    
  bzimage = sys.argv[1]
  rootfs = sys.argv[2]
  target = sys.argv[3]

  # Kernel first
  fw = file(bzimage).read()
  if len(fw) > (kernel_extent - config):
    raise IOError("Kernel too large")

  # Pad up to 0x200000
  while len(fw) < (kernel_extent - config):
    fw += "\xff"

  fw += file(rootfs).read()

  # Check length of total
  if len(fw) > (0x800000 - 0x10000 - 0x6000):
    raise IOError("Rootfs too large")

  file(target,"wb").write(fw)
  print "Firmware written to '%s'" % target
 type='hidden' name='id' value='c03f264f6d8a00249ab86574884c615ea8fda5a4'/><select name='h' onchange='this.form.submit();'>
<option value='attitude_adjustment'>attitude_adjustment</option>
<option value='barrier_breaker'>barrier_breaker</option>
<option value='chaos_calmer'>chaos_calmer</option>
<option value='lede-17.01'>lede-17.01</option>
<option value='less-old-master'>less-old-master</option>
<option value='master'>master</option>
<option value='old-master'>old-master</option>
<option value='openwrt-18.06'>openwrt-18.06</option>
<option value='openwrt-19.07'>openwrt-19.07</option>
<option value='upstream'>upstream</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>upstream openwrt</td><td class='sub right'>James</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit/openwrt/upstream/about/?h=v22.03.5'>about</a><a href='/cgit/openwrt/upstream/?h=v22.03.5'>summary</a><a href='/cgit/openwrt/upstream/refs/?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>refs</a><a href='/cgit/openwrt/upstream/log/target/linux/mpc85xx/generic/target.mk?h=v22.03.5'>log</a><a class='active' href='/cgit/openwrt/upstream/tree/target/linux/mpc85xx/generic/target.mk?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>tree</a><a href='/cgit/openwrt/upstream/commit/target/linux/mpc85xx/generic/target.mk?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>commit</a><a href='/cgit/openwrt/upstream/diff/target/linux/mpc85xx/generic/target.mk?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>diff</a><a href='/cgit/openwrt/upstream/stats/target/linux/mpc85xx/generic/target.mk?h=v22.03.5'>stats</a></td><td class='form'><form class='right' method='get' action='/cgit/openwrt/upstream/log/target/linux/mpc85xx/generic/target.mk'>
<input type='hidden' name='h' value='v22.03.5'/><input type='hidden' name='id' value='c03f264f6d8a00249ab86574884c615ea8fda5a4'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit/openwrt/upstream/tree/?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>root</a>/<a href='/cgit/openwrt/upstream/tree/target?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>target</a>/<a href='/cgit/openwrt/upstream/tree/target/linux?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>linux</a>/<a href='/cgit/openwrt/upstream/tree/target/linux/mpc85xx?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>mpc85xx</a>/<a href='/cgit/openwrt/upstream/tree/target/linux/mpc85xx/generic?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>generic</a>/<a href='/cgit/openwrt/upstream/tree/target/linux/mpc85xx/generic/target.mk?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>target.mk</a></div><div class='content'>blob: f8a79a7b9038354e47794792e0a91d7824e04b11 (<a href='/cgit/openwrt/upstream/plain/target/linux/mpc85xx/generic/target.mk?h=v22.03.5&amp;id=c03f264f6d8a00249ab86574884c615ea8fda5a4'>plain</a>)
<table summary='blob content' class='blob'>
<tr><td class='linenumbers'><pre><a id='n1' href='#n1'>1</a>
<a id='n2' href='#n2'>2</a>
<a id='n3' href='#n3'>3</a>
<a id='n4' href='#n4'>4</a>
<a id='n5' href='#n5'>5</a>
<a id='n6' href='#n6'>6</a>
</pre></td>
<td class='lines'><pre><code>