| Message ID | 20180309191717.19545-2-Valentin.Spreckels@Informatik.Uni-Oldenburg.DE |
|---|---|
| State | Accepted |
| Delegated to: | Mathias Kresin |
| Headers | show |
| Series | [LEDE-DEV,1/3] fritz-tools: add fritz_tffs_nand_read tool | expand |
On 09/03/18 20:17, Valentin Spreckels wrote: > The bootloader on the FRITZ!Box 7412 crashes when flashing images. Thus > the AVM recovery tool uses another approach: It uses the bootloader to > load a small linux system into the ram and boot it from there. This > system will then flash the image. > > This script mimics the behavior: It loads an openwrt initramfs image. > After this a sysupgrade can be done to persistently install openwrt. > > Signed-off-by: Valentin Spreckels <Valentin.Spreckels@Informatik.Uni-Oldenburg.DE> I have been using an ugly shell script to do the same for a few years so ... Acked-by: John Crispin <john@phrozen.org> > --- > scripts/flashing/eva_ramboot.py | 37 +++++++++++++++++++++++++++++++++++++ > 1 file changed, 37 insertions(+) > create mode 100755 scripts/flashing/eva_ramboot.py > > diff --git a/scripts/flashing/eva_ramboot.py b/scripts/flashing/eva_ramboot.py > new file mode 100755 > index 0000000000..b825d2768b > --- /dev/null > +++ b/scripts/flashing/eva_ramboot.py > @@ -0,0 +1,37 @@ > +#!/usr/bin/python > + > +from ftplib import FTP > +from sys import argv > +from os import stat > + > +assert len(argv) == 3 > +ip = argv[1] > +image = argv[2] > + > +size = stat(image).st_size > +# arbitrary size limit, to prevent the address calculations from overflows etc. > +assert size < 0x2000000 > + > +# 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(image, "rb") > + > +ftp = FTP(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()
diff --git a/scripts/flashing/eva_ramboot.py b/scripts/flashing/eva_ramboot.py new file mode 100755 index 0000000000..b825d2768b --- /dev/null +++ b/scripts/flashing/eva_ramboot.py @@ -0,0 +1,37 @@ +#!/usr/bin/python + +from ftplib import FTP +from sys import argv +from os import stat + +assert len(argv) == 3 +ip = argv[1] +image = argv[2] + +size = stat(image).st_size +# arbitrary size limit, to prevent the address calculations from overflows etc. +assert size < 0x2000000 + +# 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(image, "rb") + +ftp = FTP(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()
The bootloader on the FRITZ!Box 7412 crashes when flashing images. Thus the AVM recovery tool uses another approach: It uses the bootloader to load a small linux system into the ram and boot it from there. This system will then flash the image. This script mimics the behavior: It loads an openwrt initramfs image. After this a sysupgrade can be done to persistently install openwrt. Signed-off-by: Valentin Spreckels <Valentin.Spreckels@Informatik.Uni-Oldenburg.DE> --- scripts/flashing/eva_ramboot.py | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100755 scripts/flashing/eva_ramboot.py