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>
This commit is contained in:
David Bauer 2019-02-18 23:58:32 +01:00 committed by Christian Lamparter
parent 18e942b6c4
commit e7bc8984d9

View File

@ -1,24 +1,32 @@
#!/usr/bin/python #!/usr/bin/env python3
import argparse
from ftplib import FTP from ftplib import FTP
from sys import argv from sys import argv
from os import stat from os import stat
assert len(argv) == 3 parser = argparse.ArgumentParser(description='Tool to boot AVM EVA ramdisk images.')
ip = argv[1] parser.add_argument('ip', type=str, help='IP-address to transfer the image to')
image = argv[2] 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(image).st_size size = stat(args.image).st_size
# arbitrary size limit, to prevent the address calculations from overflows etc. # arbitrary size limit, to prevent the address calculations from overflows etc.
assert size < 0x2000000 assert size < 0x2000000
# We need to align the address. A page boundary seems to be sufficient on 7362sl if args.offset:
# and 7412 addr = size
addr = ((0x8000000 - size) & ~0xfff) haddr = args.offset
haddr = 0x80000000 + addr else:
img = open(image, "rb") # We need to align the address.
# A page boundary seems to be sufficient on 7362sl and 7412
addr = ((0x8000000 - size) & ~0xfff)
haddr = 0x80000000 + addr
ftp = FTP(ip, 'adam2', 'adam2') img = open(args.image, "rb")
ftp = FTP(args.ip, 'adam2', 'adam2')
def adam(cmd): def adam(cmd):
print("> %s"%(cmd)) print("> %s"%(cmd))