Openwrt/scripts/flashing/eva_ramboot.py
David Bauer e7bc8984d9 scripts: make eva_ramboot.py offset configurable
The current eva_ramboot.py script is currently only compatible with
Lantiq based AVM devices. For IPQ40xx devices, the offset needs to be
changed. Also an alignment is not necessary here.

Adjust the script to be able to pass an optional offset to load the
image to. In case no offset is provided, the script behaves exactly as
before this commit.

Signed-off-by: David Bauer <mail@david-bauer.net>
2019-02-28 11:32:55 +01:00

46 lines
1.3 KiB
Python
Executable File

#!/usr/bin/env python3
import argparse
from ftplib import FTP
from sys import argv
from os import stat
parser = argparse.ArgumentParser(description='Tool to boot AVM EVA ramdisk images.')
parser.add_argument('ip', type=str, help='IP-address to transfer the image to')
parser.add_argument('image', type=str, help='Location of the ramdisk image')
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.')
args = parser.parse_args()
size = stat(args.image).st_size
# arbitrary size limit, to prevent the address calculations from overflows etc.
assert size < 0x2000000
if args.offset:
addr = size
haddr = args.offset
else:
# We need to align the address.
# A page boundary seems to be sufficient on 7362sl and 7412
addr = ((0x8000000 - size) & ~0xfff)
haddr = 0x80000000 + addr
img = open(args.image, "rb")
ftp = FTP(args.ip, 'adam2', 'adam2')
def adam(cmd):
print("> %s"%(cmd))
resp = ftp.sendcmd(cmd)
print("< %s"%(resp))
assert resp[0:3] == "200"
ftp.set_pasv(True)
# The following parameters allow booting the avm recovery system with this
# script.
adam('SETENV memsize 0x%08x'%(addr))
adam('SETENV kernel_args_tmp mtdram1=0x%08x,0x88000000'%(haddr))
adam('MEDIA SDRAM')
ftp.storbinary('STOR 0x%08x 0x88000000'%(haddr), img)
img.close()
ftp.close()