89 lines
2.6 KiB
Python
Executable File
89 lines
2.6 KiB
Python
Executable File
#!/usr/bin/python2
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# Copyright (C) 2015 Red Hat Inc.
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# Author(s): Dennis Gilmore <dennis@ausil.us>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version. See http://www.gnu.org/copyleft/gpl.html for
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# the full text of the license.
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import os
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def is_calxeda():
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#is the system a calxeda one
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fd = open('/proc/cpuinfo','r')
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cpuinfo = fd.readlines()
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fd.close()
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for line in cpuinfo:
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if line.startswith('Hardware'):
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if line.split(' ')[1].startswith('Highbank'):
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return True
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if line.split(' ')[1].startswith('Midway'):
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return True
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return False
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def update_sysconfig():
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'''
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update /etc/sysconfig/uboot to reflect if the platform provides its own dtb and
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we do not need to pass anything.
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'''
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configfile = '/etc/sysconfig/uboot'
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fd = open(configfile, 'r')
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uboot = fd.read()
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fd.close()
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newuboot = uboot.replace('#SHIPSDTB=no','SHIPSDTB=yes')
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fd = open(configfile, 'w')
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fd.write(newuboot)
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fd.close()
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def insert_fdtdir():
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'''
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insert into /boot/extlinux/extlinux.conf a fdtdir line
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'''
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configfile = '/boot/extlinux/extlinux.conf'
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fd = open(configfile, 'r')
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extlinux = fd.readlines()
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fd.close()
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newextlinux = []
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fdtdirline = ''
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for line in extlinux:
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newextlinux.append(line)
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if line.startswith('\tkernel'):
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fdtdirline = line.replace('kernel','fdtdir').replace('vmlinuz', 'dtb')
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if line.startswith('\tappend'):
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newextlinux.append(fdtdirline)
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fd = open(configfile, 'w')
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fd.writelines(newextlinux)
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fd.close()
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def copy_rescue_dtbs():
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'''
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check if there is a rescue image and copy the dtb files if there is
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'''
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boot = os.listdir('/boot')
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dtbsource = ''
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dtbdest = ''
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has_rescue = False
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for target in boot:
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if target.startswith('vmlinuz-0-rescue'):
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has_rescue = True
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dtbdest = '/boot/%s' % target.replace('vmlinuz', 'dtb')
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if target.startswith('dtb'):
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dtbsource = '/boot/%s' % target
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if has_rescue:
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if not os.path.isdir(dtbdest):
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os.mkdir(dtbdest)
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for dtb in os.listdir(dtbsource):
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os.link(os.path.join(dtbsource, dtb), os.path.join(dtbdest, dtb))
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if __name__ == "__main__":
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# platform ships its own dtb
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if is_calxeda():
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update_sysconfig()
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else:
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# need to add fdtdir to extlinux.conf
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insert_fdtdir()
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copy_rescue_dtbs()
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