mirror of
https://git.codelinaro.org/clo/qsdk/oss/boot/u-boot-2016.git
synced 2025-12-10 07:44:53 +01:00
c5d203be8e
Adds support to add mbn header to u-boot.bin as mbn header is needed by sbl of all boards with ipq806x soc. A python script at tools/mkheader.py is included which creates u-boot.mbn from u-boot.bin. Change-Id: I070d82d9af0ed772cd4970b8fde152a8e3068823 Signed-off-by: Gokul Sriram Palanisamy <gpalan@codeaurora.org>
105 lines
3.1 KiB
Python
Executable file
105 lines
3.1 KiB
Python
Executable file
#
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# Copyright (c) 2014-2016 The Linux Foundation. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 and
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# only version 2 as published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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import sys
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import struct
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def create_header(base, size, img_type):
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"""Returns a packed MBN header image with the specified base and size.
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@arg base: integer, specifies the image load address in RAM
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@arg size: integer, specifies the size of the image
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@arg img_type: integer, specifies the image type
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@returns: string, the MBN header
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"""
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header = [
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img_type, # Type: APPSBL
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0x3, # Version: 3
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0x0, # Image source pointer
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base, # Image destination pointer
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size, # Code Size + Cert Size + Signature Size
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size, # Code Size
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base + size, # Destination + Code Size
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0x0, # Signature Size
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base + size, # Destination + Code Size + Signature Size
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0x0, # Cert Size
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]
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header_packed = struct.pack('<10I', *header)
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return header_packed
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def mkheader(base_addr, img_type, infname, outfname):
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"""Prepends the image with the MBN header.
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@arg base_addr: integer, specifies the image load address in RAM
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@arg img_type: integer, specifies the image type
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@arg infname: string, image filename
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@arg outfname: string, output image with header prepended
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@raises IOError: if reading/writing input/output file fails
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"""
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with open(infname, "rb") as infp:
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image = infp.read()
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insize = len(image)
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if base_addr > 0xFFFFFFFF:
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raise ValueError("invalid base address")
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if base_addr + insize > 0xFFFFFFFF:
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raise ValueError("invalid destination range")
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header = create_header(base_addr, insize, img_type)
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with open(outfname, "wb") as outfp:
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outfp.write(header)
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outfp.write(image)
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def usage(msg=None):
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"""Print command usage.
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@arg msg: string, error message if any (default: None)
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"""
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if msg != None:
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sys.stderr.write("mkheader: %s\n" % msg)
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print "Usage: mkheader.py <base-addr> <img_type> <input-file> <output-file>"
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if msg != None:
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exit(1)
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def main():
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"""Main entry function"""
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if len(sys.argv) != 5:
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usage("incorrect no. of arguments")
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try:
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base_addr = int(sys.argv[1], 0)
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img_type = int(sys.argv[2], 0)
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infname = sys.argv[3]
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outfname = sys.argv[4]
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except ValueError as e:
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sys.stderr.write("mkheader: invalid base address '%s'\n" % sys.argv[1])
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exit(1)
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try:
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mkheader(base_addr, img_type, infname, outfname)
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except IOError as e:
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sys.stderr.write("mkheader: %s\n" % e)
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exit(1)
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except ValueError as e:
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sys.stderr.write("mkheader: %s\n" % e)
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exit(1)
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if __name__ == "__main__":
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main()
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