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Leonard Anderweit
cb642c0818
Add arguments --ramsize and --ramstart to make the hardcoded memory addresses configurable. Use the previous addresses as the default. Signed-off-by: Leonard Anderweit <leonard.anderweit@gmail.com> Link: https://github.com/openwrt/openwrt/pull/25056 Signed-off-by: Robert Marko <robimarko@gmail.com>
52 lines
1.7 KiB
Python
Executable File
52 lines
1.7 KiB
Python
Executable File
#!/usr/bin/env python3
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import argparse
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from ftplib import FTP
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from os import stat
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parser = argparse.ArgumentParser(description='Tool to boot AVM EVA ramdisk images.')
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parser.add_argument('ip', type=str, help='IP-address to transfer the image to')
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parser.add_argument('image', type=str, help='Location of the ramdisk image')
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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.')
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parser.add_argument('--ramsize', type=lambda x: int(x,0), help='RAM size in hex format with leading 0x.')
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parser.add_argument('--ramstart', type=lambda x: int(x,0), help='RAM start address in hex format with leading 0x.')
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args = parser.parse_args()
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ram_size = args.ramsize if args.ramsize else 0x8000000
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ram_start = args.ramstart if args.ramstart else 0x80000000
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end_addr = ram_start + ram_size
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size = stat(args.image).st_size
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# arbitrary size limit, to prevent the address calculations from overflows etc.
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assert size < 0x2000000
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if args.offset:
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memsize = size
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start_addr = args.offset
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else:
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# We need to align the address.
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# A page boundary seems to be sufficient on 7362sl and 7412
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memsize = ((ram_size - size) & ~0xfff)
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start_addr = ram_start + memsize
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img = open(args.image, "rb")
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ftp = FTP(args.ip, 'adam2', 'adam2')
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def adam(cmd):
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print("> %s"%(cmd))
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resp = ftp.sendcmd(cmd)
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print("< %s"%(resp))
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assert resp[0:3] == "200"
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ftp.set_pasv(True)
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# The following parameters allow booting the avm recovery system with this
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# script.
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adam('SETENV memsize 0x%08x'%(memsize))
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adam('SETENV kernel_args_tmp mtdram1=0x%08x,0x%08x'%(start_addr, end_addr))
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adam('MEDIA SDRAM')
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ftp.storbinary('STOR 0x%08x 0x%08x'%(start_addr, end_addr), img)
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img.close()
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ftp.close()
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