scripts/flashing/eva_ramboot.py

   1 #!/usr/bin/env python3
   2
   3 import argparse
   4
   5 from ftplib import FTP
   6 from os import stat
   7
   8 parser = argparse.ArgumentParser(description='Tool to boot AVM EVA ramdisk images.')
   9 parser.add_argument('ip', type=str, help='IP-address to transfer the image to')
  10 parser.add_argument('image', type=str, help='Location of the ramdisk image')
  11 parser.add_argument('--offset', type=lambda x: int(x,0), help='Offset to load the image to in hex format with leading 0x. Only needed for non-lantiq devices.')
  12 args = parser.parse_args()
  13
  14 size = stat(args.image).st_size
  15 # arbitrary size limit, to prevent the address calculations from overflows etc.
  16 assert size < 0x2000000
  17
  18 if args.offset:
  19         addr = size
  20         haddr = args.offset
  21 else:
  22         # We need to align the address.
  23         # A page boundary seems to be sufficient on 7362sl and 7412
  24         addr = ((0x8000000 - size) & ~0xfff)
  25         haddr = 0x80000000 + addr
  26
  27 img = open(args.image, "rb")
  28 ftp = FTP(args.ip, 'adam2', 'adam2')
  29
  30 def adam(cmd):
  31         print("> %s"%(cmd))
  32         resp = ftp.sendcmd(cmd)
  33         print("< %s"%(resp))
  34         assert resp[0:3] == "200"
  35
  36 ftp.set_pasv(True)
  37 # The following parameters allow booting the avm recovery system with this
  38 # script.
  39 adam('SETENV memsize 0x%08x'%(addr))
  40 adam('SETENV kernel_args_tmp mtdram1=0x%08x,0x88000000'%(haddr))
  41 adam('MEDIA SDRAM')
  42 ftp.storbinary('STOR 0x%08x 0x88000000'%(haddr), img)
  43 img.close()
  44 ftp.close()