mirror of
https://github.com/optim-enterprises-bv/openwrt-ipq.git
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6f692c9c49
clean up formatting with black using 80 character line limit Signed-off-by: Doug Kerr <dek3rr@gmail.com>
150 lines
2.5 KiB
Python
Executable File
150 lines
2.5 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Whole Flash Image Tag
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{
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u32 crc32;
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u32 version;
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u32 chipID;
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u32 flashType;
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u32 flags;
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}
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CRC32: Ethernet (Poly 0x04C11DB7)
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Version:
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0x00005700: Any version
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0x00005731: NAND 1MB data partition
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0x00005732: Normal version
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Chip ID:
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Broadcom Chip ID
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0x00006328: BCM6328
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0x00006362: BCM6362
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0x00006368: BCM6368
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0x00063268: BCM63268
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Flash Type:
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1: NOR
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2: NAND 16k blocks
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3: NAND 128k blocks
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4: NAND 256k blocks
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5: NAND 512k blocks
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6: NAND 1MB blocks
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7: NAND 2MB blocks
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Flags:
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0x00000001: PMC
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0x00000002: Secure BootROM
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"""
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import argparse
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import os
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import struct
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import binascii
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def auto_int(x):
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return int(x, 0)
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def create_tag(args, in_bytes):
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# JAM CRC32 is bitwise not and unsigned
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crc = ~binascii.crc32(in_bytes) & 0xFFFFFFFF
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tag = struct.pack(
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">IIIII",
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crc,
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args.tag_version,
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args.chip_id,
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args.flash_type,
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args.flags,
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)
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return tag
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def create_output(args):
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in_st = os.stat(args.input_file)
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in_size = in_st.st_size
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in_f = open(args.input_file, "r+b")
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in_bytes = in_f.read(in_size)
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in_f.close()
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tag = create_tag(args, in_bytes)
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out_f = open(args.output_file, "w+b")
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out_f.write(in_bytes)
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out_f.write(tag)
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out_f.close()
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def main():
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global args
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parser = argparse.ArgumentParser(description="")
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parser.add_argument(
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"--input-file",
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dest="input_file",
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action="store",
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type=str,
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help="Input file",
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)
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parser.add_argument(
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"--output-file",
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dest="output_file",
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action="store",
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type=str,
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help="Output file",
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)
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parser.add_argument(
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"--version",
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dest="tag_version",
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action="store",
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type=auto_int,
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help="WFI Tag Version",
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)
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parser.add_argument(
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"--chip-id",
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dest="chip_id",
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action="store",
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type=auto_int,
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help="WFI Chip ID",
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)
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parser.add_argument(
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"--flash-type",
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dest="flash_type",
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action="store",
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type=auto_int,
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help="WFI Flash Type",
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)
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parser.add_argument(
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"--flags", dest="flags", action="store", type=auto_int, help="WFI Flags"
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)
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args = parser.parse_args()
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if not args.flags:
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args.flags = 0
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if (
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(not args.input_file)
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or (not args.output_file)
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or (not args.tag_version)
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or (not args.chip_id)
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or (not args.flash_type)
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):
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parser.print_help()
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else:
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create_output(args)
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main()
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